WO2020057375A1 - 一种资源配置方法及通信装置 - Google Patents
一种资源配置方法及通信装置 Download PDFInfo
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- WO2020057375A1 WO2020057375A1 PCT/CN2019/104441 CN2019104441W WO2020057375A1 WO 2020057375 A1 WO2020057375 A1 WO 2020057375A1 CN 2019104441 W CN2019104441 W CN 2019104441W WO 2020057375 A1 WO2020057375 A1 WO 2020057375A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0067—Rate matching
- H04L1/0068—Rate matching by puncturing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
- H04L5/0035—Resource allocation in a cooperative multipoint environment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0466—Wireless resource allocation based on the type of the allocated resource the resource being a scrambling code
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
Definitions
- the present application relates to the field of communication technologies, and in particular, to a resource configuration method and a communication device.
- MIMO Multiple-input multiple-output
- the main idea of MIMO technology is to reduce the channel fading during the codeword transmission process by using multiple transmitting antennas set at the transmitting end and multiple receiving antennas set at the receiving end, thereby improving communication quality.
- the downlink data sent by the base station (BS) to the terminal equipment is usually coded and modulated in units of codewords (codewords, CW).
- codewords codewords, CW.
- the transmitted codewords need to be rate-matched to make the information bits Can bypass some specific time-frequency resources, that is, do not map data on some specific time-frequency resources. These specific time-frequency resources are usually used to send other information.
- the base station usually needs to notify these specific time-frequency by signaling. Resources. For example, the zero-power channel state information reference signal (ZP-CSI-RS) resource may be notified, so that the transmitted codeword is rate-matched for the ZP-CSI-RS so as not to be in the corresponding time-frequency resource. Map information bits.
- ZP-CSI-RS zero-power channel state information reference signal
- the base station before sending downlink data to the terminal device, the base station first configures rate matching resources for the downlink data, for example, resource set 1 to resource set 3.
- the rate matching resources can be periodic or aperiodic. Resources.
- the base station selects some or all of the resources from the configured rate matching resources through downlink control information (DCI) to indicate to the terminal device the resources that will be triggered by this transmission. That is, the base station will not map the information bits of the downlink data on this resource.
- DCI downlink control information
- a field in the DCI is used to indicate a trigger rate matching resource, and one or more status values in the field may be used to trigger a partial rate matching resource.
- the terminal device determines the rate matching resource corresponding to the downlink data scheduled by the DCI by determining the status value indicated by this field.
- next generation wireless communication system for example, the 5th generation (5G) system
- 5G 5th generation
- CoMP coordinated multiple points transmission / reception
- COMP the 5th generation
- the downlink data includes multiple codewords.
- Each base station can send different codewords for the terminal device.
- Each codeword corresponds to a different modulation.
- the encoding scheme for example, base station A sends codeword 0 to the terminal device, and base station B sends codeword 1 to the terminal device.
- the base station sends a DCI for scheduling downlink data including multiple codewords
- the DCI needs to indicate a rate matching resource corresponding to codeword 0 and a rate matching resource corresponding to codeword 1. Therefore, it will cause
- the number of bits in the field for indicating the rate matching resource in DCI increases, which increases the overhead of DCI.
- the embodiments of the present application provide a resource configuration method and a communication device, so as to reduce the overhead of DCI.
- an embodiment of the present application provides a resource configuration method.
- the method includes: a network device first determines that a first resource set that does not carry information bits included in any one of the N codewords and does not carry the N A second resource set of information bits included in a part of the codeword, where N is an integer greater than or equal to 2, and then the network device sends to the terminal device the first information indicating the configuration information of the first resource set and The second information is used to indicate configuration information of the second resource set.
- the terminal device receives the first information and the second information, and determines the first resource set and the second resource set.
- the information resource included in the first resource set that does not carry any one of the N codewords specifically includes: when the resource used to carry any one of the N codewords and the information in the first resource set are When any resource element RE overlaps, the overlapping RE does not carry the information bits included in any one of the N codewords; the second resource set does not carry some of the codewords in the N codewords including
- the information bits specifically include: when resources for carrying part of the codewords in the N codewords overlap with any of the REs in the second resource set, the N codewords are not carried in the overlapping REs
- the part of the codeword consists of information bits.
- the rate matching resources (the first resource set) shared by the N codewords and the rate matching resources (the second resource set) dedicated to some codewords in the N codewords are configured, so that when data transmission is performed In this case, it is possible to reduce repetition to indicate N codewords to the same rate matching resource, thereby reducing the number of bits of an indication field used to indicate rate matching resources during CoMP transmission, so as to save the overhead of DCI.
- the method further includes: sending, by the network device, to the terminal device the information bit used to indicate that the first resource set does not carry any one of the N codewords and / or the second codeword
- the resource set does not carry the third information of the information bits included in some of the N codewords, and the terminal device receives the third information.
- the network device may indicate the purpose of the first resource set and the second resource set to the terminal device through the third information, that is, indicate which resource set of the first resource set and the second resource set.
- the network device may include, but is not limited to, the following two ways to send the third information:
- the network device sends downlink control information DCI, and the terminal device receives the DCI.
- the first field in the DCI is used to indicate the third information.
- the status value of the first field includes at least one of the following three status values:
- the first status value is used to indicate that the first resource set does not carry the information bits included in any one of the N codewords.
- the second status value is used to indicate that the second resource set does not carry information bits included in some of the N codewords.
- the third status value is used to indicate that the first resource set does not carry information bits included in any one of the N codewords, and the second resource set does not carry information included in some of the N codewords. Bits.
- the network device sends downlink control information DCI, and the terminal device receives the DCI.
- the second field and the third field in the DCI are used to indicate the third information; wherein the second field is used to indicate that the first resource set does not carry the DCI.
- the third field is used to indicate that the second resource set does not carry information bits included in some of the N codewords, or the third field is used to indicate that the first resource set does not carry the N codewords.
- the information bits included in any one of the codewords and the second resource set do not carry the information bits included in some of the N codewords.
- the network device may indicate the third information to the terminal device in multiple ways, which may increase the flexibility of the network device.
- the status value of the first field is further used to indicate that at least one resource set is enabled from the first resource set and the second resource set; or, the second field and / or the third
- the field is also used to indicate that at least one resource set is enabled from the first resource set and the second resource set.
- a field for indicating the purpose of the first resource set and the second resource set in the DCI can also be used to indicate the resource set enabled when data is transmitted, so that one field can indicate different information, which further reduces the DCI. s expenses.
- the method further includes: the network device sends fourth information to the terminal device to indicate the first resource set and to indicate that at least one of the N codewords is enabled; or, The network device sends fourth information to the terminal device to indicate the first resource set and the second resource set, and to indicate that at least one of the N codewords is enabled, and the terminal device receives the fourth information.
- the first resource set and the first resource set may be indicated to the terminal device by indicating the enabled resource set and the enabled codeword.
- the use of two resource sets can increase the flexibility of network equipment.
- the fourth information may include, but is not limited to, the following four indication contents:
- the resource set indicated by the fourth field does not carry the Information bits included in a codeword enabled
- the resource set indicated by the fourth information does not carry all Information bits included in any one of the plurality of enabled codewords
- the fourth information when the fourth information is used to indicate the first resource set and the second resource set and used to indicate that one of the N codewords is enabled, the fourth information indicates The first resource set and the second resource set do not carry the information bits included in the enabled one codeword; or
- the fourth information when the fourth information is used to indicate the first resource set and the second resource set and used to indicate that multiple codewords of the N codewords are enabled, the fourth information
- the indicated first resource set does not carry the information bits included in any one of the plurality of enabled codewords
- the second resource set indicated by the fourth information does not carry the plurality of enabled codes
- a part of the codeword in the word includes information bits, wherein the first resource set and the second resource set indicated in the fourth information are determined according to a predefined rule.
- the network device may indicate the purpose of the first resource set and the second resource set through different resource sets and different codewords enabled in the fourth information, which may increase the flexibility of the network device.
- the network device may include, but is not limited to, the following two ways to send the fourth information:
- the network device sends downlink control information DCI, and the terminal device receives the DCI, and a fourth field in the DCI is used to indicate the fourth information; or a fifth field in the DCI indicates the first resource set, and the first field in the DCI is Six fields are used to indicate the second resource set.
- the network device sends the first downlink control information DCI, and the terminal device receives the first DCI, where the first DCI is used to indicate the first resource set and used to instruct to enable the first codeword of the N codewords;
- the network device sends the second downlink control information DCI, and the terminal device receives the second DCI.
- the second DCI is used to indicate the second resource set and to enable the second codeword of the N codewords.
- the network device sends the first downlink control information DCI, the terminal device receives the first DCI, the first DCI is used to indicate the first resource set and the second resource set, and the first DCI is used to indicate that the N is enabled
- the first codeword of each codeword
- the network device sends the second downlink control information DCI, and the terminal device receives the second DCI.
- the second DCI is used to indicate at least one resource set in the third resource set except the second resource set, and is used to indicate that the N number of resources are enabled.
- the second codeword in the codeword, and the second resource set is a resource set in the third resource set.
- the network device may indicate the fourth information to the terminal device in multiple ways, which may increase the flexibility of the network device.
- the first information and the second information are radio resource control RRC signaling or media access control element MAC CE signaling.
- the network device may indicate the first information and the second information through RRC signaling or MAC CE signaling, which may increase the flexibility of the network device.
- the fourth information is further used to indicate a first transmission mode or a second transmission mode of the N codewords.
- the first transmission mode the information bits in the N codewords are the same.
- the second transmission mode the information bits in the N codewords are different.
- the transmission mode for data transmission can also be indicated by the fields in the DCI for indicating the purpose of the first resource set and the second resource set, so that one field can indicate different information, which further reduces the DCI. Overhead.
- the resources in the first resource set and the second resource set are zero power channel state information reference signals ZPCSI-RS.
- an embodiment of the present application provides a communication apparatus, where the communication apparatus includes a processor, and is configured to implement the method performed by a network device in the first aspect.
- the communication device may further include a memory for storing program instructions and data.
- the memory is coupled to the processor, and the processor may call and execute program instructions stored in the memory, which are used to implement any one of the methods described in the second aspect above.
- the communication device may further include a communication interface, where the communication interface is used for the communication device to communicate with other devices. Exemplarily, the other device is a network device.
- the communication device includes a processor and a communication interface, where:
- the processor is configured to determine a first resource set and a second resource set, the first resource set does not carry information bits included in any one of the N codewords, and the second resource set does not carry all the information bits.
- the information resource included in the first resource set that does not carry any one of the N codewords specifically includes: when the resource used to carry any one of the N codewords and the first resource When any resource element RE in the set overlaps, the information bits included in any one of the N codewords are not carried on the overlapped RE; the second resource set does not carry the N codes
- the information bits included in a part of the codeword in the word specifically include: when a resource for carrying a part of the N codewords overlaps with any one of the REs in the second resource set, The RE does not carry information bits included in some of the N codewords;
- the communication interface is configured to send first information and second information, the first information is used to indicate configuration information of the first resource set, and the second information is used to indicate configuration of the second resource set information.
- the communication interface is further configured to:
- the third information is used to indicate that the first resource set does not carry information bits included in any one of the N codewords and / or the second resource set does not carry the Information bits included in part of the N codewords.
- the communication interface is used for:
- a first field in the DCI is used to indicate the third information
- the first status value is used to indicate that the first resource set does not carry information bits included in any one of the N codewords.
- the second status value is used to indicate that the second resource set does not carry information bits included in some of the N codewords.
- the third status value is used to indicate that the first resource set does not carry information bits included in any one of the N codewords, and the second resource set does not carry partial codes in the N codewords
- a word consists of information bits.
- the communication interface is used for:
- the second field is used to indicate that the first resource set does not carry information bits included in any one of the N codewords
- the third field is used to indicate that the second resource set does not carry information bits included in some of the N codewords, or the third field is used to indicate that the first resource set is not carried.
- the information bits included in any one of the N codewords and the second resource set does not carry the information bits included in a part of the N codewords.
- the status value of the first field is further used to indicate that at least one resource set is enabled from the first resource set and the second resource set;
- the second field and / or the third field are further used to indicate that at least one resource set is enabled from the first resource set and the second resource set.
- the communication interface is further configured to:
- the fourth information is used to indicate the first resource set, and the fourth information is further used to indicate that at least one of the N codewords is enabled; or
- the fourth information is used to indicate the first resource set and the second resource set, and the fourth information is further used to indicate that at least one of the N codewords is enabled.
- the resource set indicated by the fourth field Does not carry the information bits included in the enabled one codeword
- the resource set indicated by the fourth information does not carry the enabled Information bits included in any one of the plurality of codewords;
- the fourth information indicated by the fourth information A resource set and the second resource set do not carry the information bits included in the enabled one codeword;
- the fourth information When the fourth information is used to indicate the first resource set and the second resource set, and is used to indicate that multiple codewords of the N codewords are enabled, the first information indicated by the fourth information
- the resource set does not carry the information bits included in any one of the enabled multiple codewords
- the second resource set indicated by the fourth information does not carry a portion of the enabled multiple codewords
- the codeword includes information bits, wherein the first resource set and the second resource set indicated in the fourth information are determined according to a predefined rule.
- the communication interface is used for:
- a fourth field in the DCI is used to indicate the fourth information
- a fifth field in the DCI indicates the first resource set, and a sixth field in the DCI indicates the second resource set.
- the communication interface is used for:
- Send second downlink control information DCI where the second DCI is used to indicate the second resource set and used to indicate that the second codeword of the N codewords is enabled.
- the communication interface is used for:
- the first DCI is used to indicate the first resource set and the second resource set, and the first DCI is used to indicate that the N codeword is enabled First codeword
- the second DCI is used to indicate at least one resource set in the third resource set except the second resource set, and is used to indicate that the second code in the N codewords is enabled
- the second resource set is a resource set in the third resource set.
- the first information and the second information are radio resource control RRC signaling or media access control control element MAC CE signaling.
- the fourth information is further used to indicate a transmission mode of the N codewords, and the transmission mode includes a first transmission mode and a second transmission mode, where in the first transmission In the mode, the information bits in the N codewords are the same, and in the second transmission mode, the information bits in the N codewords are different;
- the transmission mode is a first transmission mode
- the transmission mode is a second transmission mode.
- the resources in the first resource set and the second resource set are zero-power channel state information reference signals ZPCSI-RS.
- an embodiment of the present application provides a communication device, where the communication device includes a processor, and is configured to implement the method performed by a terminal device in the first aspect.
- the communication device may further include a memory for storing program instructions and data.
- the memory is coupled to the processor, and the processor may call and execute program instructions stored in the memory, which are used to implement any one of the methods described in the second aspect above.
- the communication device may further include a communication interface, where the communication interface is used for the communication device to communicate with other devices.
- the other device is a network device.
- the communication device includes a processor and a communication interface, where:
- the communication interface is configured to receive first information and second information, the first information is used to indicate a first resource set, the second information is used to indicate a second resource set, and the first resource set is not carried Information bits included in any one of the N codewords, the second resource set does not carry the information bits included in some of the N codewords, and N is an integer greater than or equal to 2;
- the information resource included in the first resource set that does not carry any one of the N codewords specifically includes: when the resource used to carry any one of the N codewords and the first resource When any resource element RE in the set overlaps, the information bits included in any one of the N codewords are not carried on the overlapped RE; the second resource set does not carry the N codes
- the information bits included in a part of the codeword in the word specifically include: when a resource used to carry a part of the codewords in the N codewords overlaps with any one of the resource REs in the second resource set, The RE does not carry the information bits included in some of the N codewords;
- the processor is configured to determine the first resource set and the second resource set.
- the communication interface is used for:
- the third information is used to indicate that the first resource set does not carry information bits included in any one of the N codewords and / or the second resource set does not carry the Information bits included in part of the N codewords.
- the communication interface is used for:
- a first field in the DCI is used to indicate the third information
- the first status value is used to indicate that the first resource set does not carry information bits included in any one of the N codewords.
- the second status value is used to indicate that the second resource set does not carry information bits included in some of the N codewords.
- the third status value is used to indicate that the first resource set does not carry information bits included in any one of the N codewords, and the second resource set does not carry partial codes in the N codewords
- a word consists of information bits.
- the communication interface is used for:
- Receiving downlink control information DCI, the second field and the third field in the DCI are used to indicate the third information;
- the second field is used to indicate that the first resource set does not carry information bits included in any one of the N codewords
- the third field is used to indicate that the second resource set does not carry information bits included in some of the N codewords, or the third field is used to indicate that the first resource set is not carried.
- the information bits included in any one of the N codewords and the second resource set does not carry the information bits included in a part of the N codewords.
- the status value of the first field is further used to indicate that at least one resource set is enabled from the first resource set and the second resource set;
- the second field and / or the third field are further used to indicate that at least one resource set is enabled from the first resource set and the second resource set.
- the communication interface is further configured to:
- the fourth information is used to indicate the first resource set, and the fourth information is used to indicate that at least one of the N codewords is enabled;
- the fourth information is used to indicate the first resource set and the second resource set, and the fourth information is further used to indicate that at least one of the N codewords is enabled.
- the resource set indicated by the fourth field Does not carry the information bits included in the enabled one codeword
- the resource set indicated by the fourth information does not carry the enabled Information bits included in any one of the plurality of codewords;
- the fourth information indicated by the fourth information A resource set and the second resource set do not carry the information bits included in the enabled one codeword;
- the fourth information When the fourth information is used to indicate the first resource set and the second resource set, and is used to indicate that multiple codewords of the N codewords are enabled, the first information indicated by the fourth information
- the resource set does not carry the information bits included in any one of the enabled multiple codewords
- the second resource set indicated by the fourth information does not carry a portion of the enabled multiple codewords
- the codeword includes information bits, wherein the first resource set and the second resource set indicated in the fourth information are determined according to a predefined rule.
- the communication interface is used for:
- a fourth field in the DCI is used to indicate the fourth information
- a fifth field in the DCI indicates the first resource set, and a sixth field in the DCI indicates the second resource set.
- the communication interface is used for:
- the communication interface is used for:
- Receive first downlink control information DCI the first DCI is used to indicate the first resource set and the second resource set, and the first DCI is used to indicate that the N codeword is enabled First codeword
- Receive second downlink control information DCI the second DCI is used to indicate at least one resource set in the third resource set except the second resource set, and used to indicate that the second code in the N codewords is enabled
- the second resource set is a resource set in the third resource set.
- the first information and the second information are radio resource control RRC signaling or media access control control element MAC CE signaling.
- the fourth information is further used to indicate a transmission mode of the N codewords, and the transmission mode includes a first transmission mode and a second transmission mode, where in the first transmission In the mode, the information bits in the N codewords are the same, and in the second transmission mode, the information bits in the N codewords are different;
- the transmission mode is a first transmission mode
- the transmission mode is a second transmission mode.
- the resources in the first resource set and the second resource set are zero-power channel state information reference signals ZPCSI-RS.
- an embodiment of the present application provides a communication device.
- the communication device may be a network device or a device in a network device.
- the communication device may include a processing module and a communication module. These modules may execute the first aspect.
- the corresponding functions performed by the network devices in any of the design examples are as follows:
- the processing module is configured to determine a first resource set and a second resource set, the first resource set does not carry information bits included in any one of the N codewords, and the second resource set does not carry all the information bits.
- the information resource included in the first resource set that does not carry any one of the N codewords specifically includes: when the resource used to carry any one of the N codewords and the first resource When any resource element RE in the set overlaps, the information bits included in any one of the N codewords are not carried on the overlapped RE; the second resource set does not carry the N codes
- the information bits included in a part of the codeword in the word specifically include: when a resource for carrying a part of the N codewords overlaps with any one of the REs in the second resource set, The RE does not carry information bits included in some of the N codewords;
- the communication module is configured to send first information and second information, the first information is used to indicate configuration information of the first resource set, and the second information is used to indicate configuration of the second resource set information.
- the communication module is further configured to:
- the third information is used to indicate that the first resource set does not carry information bits included in any one of the N codewords and / or the second resource set does not carry the Information bits included in part of the N codewords.
- the communication module is used for:
- a first field in the DCI is used to indicate the third information
- the first status value is used to indicate that the first resource set does not carry information bits included in any one of the N codewords.
- the second status value is used to indicate that the second resource set does not carry information bits included in some of the N codewords.
- the third status value is used to indicate that the first resource set does not carry information bits included in any one of the N codewords, and the second resource set does not carry partial codes in the N codewords
- a word consists of information bits.
- the communication module is used for:
- the second field is used to indicate that the first resource set does not carry information bits included in any one of the N codewords
- the third field is used to indicate that the second resource set does not carry information bits included in some of the N codewords, or the third field is used to indicate that the first resource set is not carried.
- the information bits included in any one of the N codewords and the second resource set does not carry the information bits included in a part of the N codewords.
- the status value of the first field is further used to indicate that at least one resource set is enabled from the first resource set and the second resource set;
- the second field and / or the third field are further used to indicate that at least one resource set is enabled from the first resource set and the second resource set.
- the communication module is further configured to:
- the fourth information is used to indicate the first resource set, and the fourth information is further used to indicate that at least one of the N codewords is enabled; or
- the fourth information is used to indicate the first resource set and the second resource set, and the fourth information is further used to indicate that at least one of the N codewords is enabled.
- the resource set indicated by the fourth field Does not carry the information bits included in the enabled one codeword
- the resource set indicated by the fourth information does not carry the enabled Information bits included in any one of the plurality of codewords;
- the fourth information indicated by the fourth information A resource set and the second resource set do not carry the information bits included in the enabled one codeword;
- the fourth information When the fourth information is used to indicate the first resource set and the second resource set, and is used to indicate that multiple codewords of the N codewords are enabled, the first information indicated by the fourth information
- the resource set does not carry the information bits included in any one of the enabled multiple codewords
- the second resource set indicated by the fourth information does not carry a portion of the enabled multiple codewords
- the codeword includes information bits, wherein the first resource set and the second resource set indicated in the fourth information are determined according to a predefined rule.
- the communication module is used for:
- a fourth field in the DCI is used to indicate the fourth information
- a fifth field in the DCI indicates the first resource set, and a sixth field in the DCI indicates the second resource set.
- the communication module is used for:
- Send second downlink control information DCI where the second DCI is used to indicate the second resource set and used to indicate that the second codeword of the N codewords is enabled.
- the communication module is used for:
- the first DCI is used to indicate the first resource set and the second resource set, and the first DCI is used to indicate that the N codeword is enabled First codeword
- the second DCI is used to indicate at least one resource set in the third resource set except the second resource set, and is used to indicate that the second code in the N codewords is enabled
- the second resource set is a resource set in the third resource set.
- the first information and the second information are radio resource control RRC signaling or media access control control element MAC CE signaling.
- the fourth information is further used to indicate a transmission mode of the N codewords, and the transmission mode includes a first transmission mode and a second transmission mode, where in the first transmission In the mode, the information bits in the N codewords are the same, and in the second transmission mode, the information bits in the N codewords are different;
- the transmission mode is a first transmission mode
- the transmission mode is a second transmission mode.
- the resources in the first resource set and the second resource set are zero-power channel state information reference signals ZPCSI-RS.
- an embodiment of the present application provides a communication device.
- the communication device may be a terminal device or a device in the terminal device.
- the communication device may include a processing module and a communication module. These modules may execute the first aspect described above.
- the corresponding functions performed by the terminal device in any of the design examples are as follows:
- the communication module is configured to receive first information and second information, the first information is used to indicate a first resource set, the second information is used to indicate a second resource set, and the first resource set is not carried Information bits included in any one of the N codewords, the second resource set does not carry the information bits included in some of the N codewords, and N is an integer greater than or equal to 2;
- the information resource included in the first resource set that does not carry any one of the N codewords specifically includes: when the resource used to carry any one of the N codewords and the first resource When any resource element RE in the set overlaps, the information bits included in any one of the N codewords are not carried on the overlapped RE; the second resource set does not carry the N codes
- the information bits included in a part of the codeword in the word specifically include: when a resource used to carry a part of the codewords in the N codewords overlaps with any one of the resource REs in the second resource set, The RE does not carry the information bits included in some of the N codewords;
- the processing module is configured to determine the first resource set and the second resource set.
- the communication module is used for:
- the third information is used to indicate that the first resource set does not carry information bits included in any one of the N codewords and / or the second resource set does not carry the Information bits included in part of the N codewords.
- the communication module is used for:
- a first field in the DCI is used to indicate the third information
- the first status value is used to indicate that the first resource set does not carry information bits included in any one of the N codewords.
- the second status value is used to indicate that the second resource set does not carry information bits included in some of the N codewords.
- the third status value is used to indicate that the first resource set does not carry information bits included in any one of the N codewords, and the second resource set does not carry partial codes in the N codewords
- a word consists of information bits.
- the communication module is used for:
- Receiving downlink control information DCI, the second field and the third field in the DCI are used to indicate the third information;
- the second field is used to indicate that the first resource set does not carry information bits included in any one of the N codewords
- the third field is used to indicate that the second resource set does not carry information bits included in some of the N codewords, or the third field is used to indicate that the first resource set is not carried.
- the information bits included in any one of the N codewords and the second resource set does not carry the information bits included in a part of the N codewords.
- the status value of the first field is further used to indicate that at least one resource set is enabled from the first resource set and the second resource set;
- the second field and / or the third field are further used to indicate that at least one resource set is enabled from the first resource set and the second resource set.
- the communication module is further configured to:
- Receive fourth information the fourth information is used to indicate the first resource set, and the fourth information is used to indicate that at least one of the N codewords is enabled;
- the fourth information is used to indicate the first resource set and the second resource set, and the fourth information is further used to indicate that at least one of the N codewords is enabled.
- the resource set indicated by the fourth field Does not carry the information bits included in the enabled one codeword
- the resource set indicated by the fourth information does not carry the enabled Information bits included in any one of the plurality of codewords;
- the fourth information indicated by the fourth information A resource set and the second resource set do not carry the information bits included in the enabled one codeword;
- the fourth information When the fourth information is used to indicate the first resource set and the second resource set, and is used to indicate that multiple codewords of the N codewords are enabled, the first information indicated by the fourth information
- the resource set does not carry the information bits included in any one of the enabled multiple codewords
- the second resource set indicated by the fourth information does not carry a portion of the enabled multiple codewords
- the codeword includes information bits, wherein the first resource set and the second resource set indicated in the fourth information are determined according to a predefined rule.
- the communication module is used for:
- a fourth field in the DCI is used to indicate the fourth information
- a fifth field in the DCI indicates the first resource set, and a sixth field in the DCI indicates the second resource set.
- the communication module is used for:
- the communication module is used for:
- Receive first downlink control information DCI the first DCI is used to indicate the first resource set and the second resource set, and the first DCI is used to indicate that the N codeword is enabled First codeword
- Receive second downlink control information DCI the second DCI is used to indicate at least one resource set in the third resource set except the second resource set, and used to indicate that the second code in the N codewords is enabled
- the second resource set is a resource set in the third resource set.
- the first information and the second information are radio resource control RRC signaling or media access control control element MAC CE signaling.
- the fourth information is further used to indicate a transmission mode of the N codewords, and the transmission mode includes a first transmission mode and a second transmission mode, where in the first transmission In the mode, the information bits in the N codewords are the same, and in the second transmission mode, the information bits in the N codewords are different;
- the transmission mode is a first transmission mode
- the transmission mode is a second transmission mode.
- the resources in the first resource set and the second resource set are zero-power channel state information reference signals ZPCSI-RS.
- an embodiment of the present application further provides a computer-readable storage medium including instructions that, when run on a computer, cause the computer to execute the method performed by the network device in the first aspect.
- an embodiment of the present application further provides a computer-readable storage medium including instructions that, when run on a computer, cause the computer to execute the method performed by the terminal device in the first aspect.
- an embodiment of the present application further provides a computer program product including instructions that, when run on a computer, causes the computer to execute the method performed by the network device in the first aspect.
- an embodiment of the present application further provides a computer program product including instructions that, when run on a computer, cause the computer to execute the method performed by the terminal device in the first aspect.
- an embodiment of the present application provides a chip system.
- the chip system includes a processor, and may further include a memory, for implementing the method performed by the network device in the first aspect.
- the chip system can be composed of chips, and can also include chips and other discrete devices.
- an embodiment of the present application provides a chip system.
- the chip system includes a processor, and may further include a memory, for implementing the method performed by the terminal device in the first aspect.
- the chip system can be composed of chips, and can also include chips and other discrete devices.
- an embodiment of the present application provides a system, where the system includes the communication device according to the second aspect and the communication device according to the third aspect.
- an embodiment of the present application provides a system, where the system includes the communication device according to the fourth aspect and the communication device according to the fifth aspect.
- FIG. 1 is a structural diagram of a wireless communication system according to an embodiment of the present application.
- FIG. 2 is a flowchart of an example of a method for indicating a rate matching resource of a transmission codeword in the prior art
- FIG. 3A is a network architecture diagram of a CoMP scenario according to an embodiment of the present application.
- 3B is a network architecture diagram of another CoMP scenario according to an embodiment of the present application.
- 3C is a network architecture diagram of another CoMP scenario according to an embodiment of the present application.
- FIG. 4 is a flowchart of a resource configuration method according to an embodiment of the present application.
- 5A is a schematic diagram of an example in which two codewords provided in the embodiment of the present application need to be matched with resources occupied by the same CSI-RS;
- 5B is a schematic diagram of another example in which two codewords provided in the embodiment of the present application need to be matched with resources occupied by the same CSI-RS;
- FIG. 6A is a schematic diagram of an example of rate matching between two codewords and different resources according to an embodiment of the present application.
- 6B is a schematic diagram of another example of rate matching between two codewords and different resources provided in the embodiment of the present application.
- FIG. 7 is a schematic diagram of a frequency domain resource of a PDSCH resource allocated to terminal device A through DCI in an embodiment of the present application;
- FIG. 9 is a flowchart of another resource configuration method according to an embodiment of the present application.
- FIG. 10 is a schematic structural diagram of a communication device provided in an embodiment of the present application.
- FIG. 11 is a schematic structural diagram of another communication device provided in an embodiment of the present application.
- FIG. 12 is a schematic structural diagram of another communication device according to an embodiment of the present application.
- FIG. 13 is a schematic structural diagram of another communication device provided in an embodiment of the present application.
- Terminal devices including devices that provide voice and / or data connectivity to users, may include, for example, a handheld device with a wireless connection function, or a processing device connected to a wireless modem.
- the terminal device can communicate with the core network via a radio access network (RAN) and exchange voice and / or data with the RAN.
- the terminal equipment may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, subscriber unit, subscriber station, mobile station, mobile station, remote Station (remote station), access point (access point (AP)), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), or user Equipment (user device) and so on.
- a mobile phone or a "cellular" phone
- a computer with a mobile terminal device a portable, pocket, handheld, computer-built or vehicle-mounted mobile device, a smart wearable device, and the like.
- PCS personal communication service
- SIP session initiation protocol
- WLL wireless local loop
- PDA personal digital assistants
- restricted devices such as devices with lower power consumption, devices with limited storage capabilities, or devices with limited computing capabilities.
- it includes bar code, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanner, and other information sensing equipment.
- RFID radio frequency identification
- GPS global positioning system
- laser scanner and other information sensing equipment.
- the terminal device may also be a wearable device.
- Wearable devices can also be referred to as wearable smart devices. They are the general name for applying wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
- a wearable device is a device that is worn directly on the body or is integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also powerful functions through software support, data interaction, and cloud interaction.
- Broad-spectrum wearable smart devices include full-featured, large-sized, full or partial functions that do not rely on smart phones, such as smart watches or smart glasses, and only focus on certain types of application functions, and need to cooperate with other devices such as smart phones Use, such as smart bracelets, smart helmets, smart jewelry, etc. for physical signs monitoring.
- a network device including, for example, a base station (for example, an access point), may refer to a device in an access network that communicates with a wireless terminal device through one or more cells over an air interface.
- the network device can be used to convert the received air frame and the Internet Protocol (IP) packet to each other, and serve as a router between the terminal device and the rest of the access network, where the rest of the access network can include an IP network.
- IP Internet Protocol
- the network equipment can also coordinate the attribute management of the air interface.
- the network device may include an LTE system or an evolved base station (NodeB or eNB or e-NodeB, evolutional NodeB) in LTE-A, or may also include a fifth generation mobile communication technology (fifth generation) (5G) NR system.
- the embodiments of the present application are not limited.
- RE resource element
- a PRB pair includes 2 slots in the time domain, that is, 14 Orthogonal Frequency Division Multiple Access (OFDM) symbols, and includes 12 subcarriers in the frequency domain.
- a PRB pair includes 2 adjacent PRBs, that is, a PRB includes 12 subcarriers in the frequency domain and 1 time slot in the time domain.
- the PRB is formed after the RB is resource mapped. It can be understood that the time-frequency domain resources included in a PRB may be different for different wireless communication systems. For example, in the LTE system, a PRB includes the time-domain resources of 2 slots in the time domain. The time domain and frequency domain resources of the PRB are limited.
- the time-frequency resource allocation field in the DCI may be used to indicate that some time-frequency resources in the network resources are allocated, and the allocated time-frequency resources are used for current data transmission.
- Each rate matching resource may include one or more RBs, or include one or more REs in one or more RBs, or include one or more REs.
- One or more rate matching resources can be configured through high-level signaling. When the one or more rate matching resources are configured through high-level signaling, the time domain location information of the one or more rate matching resources may be indicated at the same time, or the time domain location information of the one or more rate matching resources may not be indicated.
- the time domain position can be a Mini-Slot, a slot, a sub-frame, a frame, or the like.
- the rate matching field in DCI can be used to indicate that some or all of the rate matching resources configured through high-level signaling are enabled, and enabling some resources indicates that the current data transmission scheduled by DCI requires the resource elements occupied by the enabled resources (resource element). , RE) to perform rate matching, that is, to indicate the time domain position where some resources are valid through DCI.
- RE resource element
- Codeword which indicates a transmission block formed after the transmitting end modulates, encodes, and scrambles the original information bits according to a predefined rule during data transmission.
- the base station needs to notify the maximum number of codewords. When the maximum number of codewords is greater than 1, the actual downlink transmission data needs to further instruct to enable some or all of the maximum number of codewords, so as to notify the terminal device when data demodulation is performed. Based on demodulation and decoding methods.
- “Multiple” means two or more. In view of this, in the embodiments of the present application, “multiple” can also be understood as “at least two". "At least two” can be understood as two or more, for example as two, three or more. "At least one” can be understood as one or more, such as one, two or more. For example, including at least one means including one, two, or more, and without limiting which ones are included, for example, including at least one of A, B, and C, then including A, B, C, A and B, A and C, B and C, or A and B and C.
- ordinal numbers such as “first” and “second” are used to distinguish multiple objects, and are not used to limit the order, timing, priority, or importance of multiple objects.
- the wireless communication system includes two base stations and two terminal devices, the two base stations are base station A and base station B, and the two terminal devices are terminal device A and terminal device, respectively.
- a base station can communicate with two terminal devices at the same time.
- base station A can send different codewords to terminal device A and terminal device B at the same time, but a terminal device communicates with only one base station at the same time.
- the terminal Device A can only receive the codeword sent by base station A at the first moment, and terminal device A can only receive the codeword sent by base station B at the second moment.
- the codeword is transmitted at the second moment in FIG. 1 by a dotted line.
- the base station A indicates to the terminal device A a rate matching resource for transmitting a codeword, and the rate matching resource is ZP CSI-RS as an example for description.
- the flowchart of the method is as follows:
- Step 201 The base station A indicates to the terminal device A a ZP CSI-RS resource set for rate matching, and the terminal device A receives the indication information and obtains the information of the ZP CSI-RS resource set.
- the base station A Before the base station A sends a codeword to the terminal device A, it first needs to configure multiple ZP CSI-RS resource sets for the codeword. For example, the base station A configures three ZP CSI-RS resource sets for the codeword, and each ZP CSI-RS resource set may include multiple ZP CSI-RS resources.
- the ZP CSI-RS resource set 1 is used as an example for illustration. As shown in FIG. 2, the ZP CSI-RS resource set 1 includes 4 ZP CSI-RS resources.
- the first ZP CSI-RS resource includes OFDM in the time domain. Symbol 2 and OFDM symbol 3, including subcarrier 0 and subcarrier 1 in the frequency domain.
- the second ZP CSI-RS resource includes OFDM symbol 6 and OFDM symbol 7 in the time domain, and includes subcarrier 0 and subcarrier in the frequency domain. 1.
- the third ZP CSI-RS resource includes OFDM symbol 2 and OFDM symbol 3 in the time domain, and includes subcarriers 4 and 5 in the frequency domain.
- the third ZP CSI-RS resource includes OFDM symbols in the time domain. 6 and OFDM symbol 7, including subcarrier 4 and subcarrier 5 in the frequency domain.
- the ZP CSI-RS resource set 2 and the ZP CSI-RS resource set 3 included in the ZP CSI-RS resource set 2 can refer to the ZP CSI-RS resource set 1, and details are not described herein again.
- the base station A sends multiple ZP CSI-RS resources through high-level signaling, for example, radio resource control (RRC) signaling or media access control control element (MAC CE) signaling.
- RRC radio resource control
- MAC CE media access control control element
- the terminal device A After receiving the high-level signaling, the terminal device A determines multiple ZP CSI-RS resource sets configured by the base station A for current and subsequent downlink data transmission, and resources included in each ZP CSI-RS resource set.
- Step 202 The base station A instructs the terminal device A to enable the ZP CSI-RS resource set corresponding to the current data transmission, and the terminal device A determines, according to the indicated ZP CSI-RS resource set, that some REs in the time-frequency resources occupied by the current data transmission cannot be mapped.
- Data bits, the partial resource may be one or more PRBs, or may be one or more REs.
- the base station A When the base station A transmits a codeword to the terminal device A, it may not enable all the ZP CSI-RS resource sets for the current data transmission, but only enable one resource set among the multiple ZP CSI-RS resource sets, so The base station A also needs to enable the ZP CSI-RS resource set enabled through DCI.
- Base station A can use an indication field in DCI to indicate the enabled ZP CSI-RS resource set.
- the indication field is 2 bits, and different ZP CSI-RS resource sets are dynamically selected by indicating different status values of the indication field.
- Resources cannot map data bits; when the status value of this indication field is "11", it indicates that ZP CSI-RS resource set 3 is enabled, that is, the time-frequency resources occupied by the current data transmission and ZP CSI-RS resource set 3 Data resources cannot be mapped to some of the resources.
- Base station A can be pre-configured in the protocol, or through high-level signaling, or through other fields in DCI, indicating that each status value in the indication field shown in Table 1 and the index value of the ZP CSI-RS resource set In this way, after the terminal device A determines the status value of the indication field, it determines the ZP CSI-RS resource set enabled for the current transmission.
- FIG. 3A is a network architecture diagram in a CoMP scenario.
- a plurality of base stations that is, base station A and base station B
- a terminal device that is, terminal device A.
- the distance between the base stations in the cooperative set is relatively close, or the optical fiber connection with small transmission loss is used, so the interaction delay between the base stations in the cooperative set can be ignored. It can be considered that there is a serving base station in the base stations in the cooperative set.
- the serving base station's role is to determine the scheduling decision of the terminal equipment that communicates with the base station in the cooperative set, for example, to determine the physical downlink control channel (PDCCH) of the terminal equipment.
- Resources physical downlink shared channel (PDSCH) resources, physical uplink shared channel (PUSCH) resources, and sending DCI in PDCCH, sending data or reference signals in PUSCH / PDSCH, etc. .
- the remaining base stations are called coordinated base stations (coordinated TRP).
- the role of the cooperative base station is to communicate with the terminal equipment according to the scheduling decision of the serving base station. Alternatively, both the serving base station and the cooperative base station are controlled by a central controller.
- the central controller is used to determine a scheduling policy for the serving base station and the cooperative base station, and the control information is sent by the serving base station to the terminal device. For example, DCI signaling is sent according to the PDCCH determined by the serving base station, and data or reference signals are sent in the PUSCH / PDSCH determined by the serving base station. In 5G systems, this scenario can also be called ideal backhaul.
- the base station A is a serving base station, and the base station B cooperates with the base station.
- the base station A or the central controller determines the scheduling decision of the terminal device A and the base station A sends a DCI to the terminal device A.
- the DCI may instruct the scheduling base station A to communicate with the terminal device A, or may instruct the scheduling base station A and the base station B to simultaneously communicate with the terminal.
- Device A communicates.
- the wireless communication system may support two DCIs simultaneously. As shown in FIG.
- the base station A can send DCI1 to the terminal device A
- the base station B can send DCI2 to the terminal device A
- the terminal device A determines according to DCI1 and DCI2 Scheduling information for terminal device A.
- FIG. 3C is another network architecture diagram in a CoMP scenario.
- the distance between base stations in the cooperation set is relatively long, or the base stations in the cooperation set rely on copper wires to connect, and the interaction delay is 2-5 ms, and may even reach 50 ms.
- multiple cooperative base stations can independently determine a scheduling decision of a terminal device that communicates with the base station in the cooperative set, and each cooperative base station independently instructs DCI.
- the multiple cooperative base stations will exchange their respective scheduling strategies, and then determine when to communicate with the terminal device according to their own scheduling strategies.
- the terminal device When multiple cooperative base stations communicate with the terminal device at the same time according to their respective scheduling decisions, the terminal device will receive multiple DCIs simultaneously, and the multiple DCIs indicate the PDCCH, PDSCH, PUSCH, and reference signals of the cooperative base station, respectively. In 5G systems, this scenario can also be called non-ideal backhaul.
- base station A and base station B determine to communicate with terminal device A at the same time according to their own scheduling policies
- base station A sends DCI3 to terminal device A
- base station B sends DCI4 to terminal device A
- terminal device A performs The scheduling policy of the base station A to the terminal device A is determined, and the terminal device A determines the scheduling policy of the base station B to the terminal device A according to DCI4.
- the DCI overhead for indicating the triggered ZP CSI-RS resource set in step 202 will be Increase and contain redundant information.
- base station A and base station B communicate with terminal device A at the same time.
- base station A sends codeword 1 to terminal device A
- base station B sends codeword 2 to terminal device A.
- the ZP CSI-RS resource set configured for codeword 1 is ZP CSI-RS resource set 1 to ZP CSI-RS resource set 3.
- the ZP CSI-RS resource set configured for codeword 2 is ZP CSI-RS resource set 4 to ZP CSI-RS resource set 6.
- the ZP CSI-RS resource set is indicated by 2 bits of DCI as an example.
- two fields need to be used to indicate that the codeword 0 corresponds to ZP CSI-RS resource set and ZP CSI-RS resource set corresponding to codeword 1.
- the status value of one of the fields is used to indicate the ZP CSI-RS resource set corresponding to transmission codeword 0.
- the status value of the indication field is "00"
- the resource set is used for rate matching of codeword 0.
- the status value of the indication field is "01", it is used to indicate that the ZP CSI-RS resource set 1 is used for rate matching of codeword 0.
- the status value of the indication field is used It is "10”, which is used to indicate that ZP CSI-RS resource set 2 is used for rate matching of codeword 0.
- the status value of this indication field is "11”, it is used to indicate that ZP CSI-RS resource set 3 is used to trigger The rate of codeword 0 matches.
- the status value of the other field is used to indicate that the triggered ZP CSI-RS resource set is used for rate matching of codeword 1, as shown in Table 3.
- the specific indication method is similar to codeword 0, and will not be repeated here.
- the rate matching indication field in the existing DCI may be extended to 4 bits and the ZP CSI-RS resource set is used for rate matching of codeword 0 and codeword 1. As shown in Table 4, when the status value of the indication field is "0000", it is used to indicate that no ZP CSI-RS resource set is triggered for rate matching between codeword 0 and codeword 1.
- this indication field When the status value of this indication field is "1010", it is used to indicate ZP CSI-RS resource set 1 is used for rate matching of codeword 0 and no CSI-RS resource set is used for rate matching of codeword 1. When the status value of this indicator field is "1011”, it is used to indicate no ZP CSI- RS resource set is used for rate matching of codeword 0 and ZP CSI-RS resource set 4 is used for rate matching of codeword 1. And so on.
- the DCI when multi-base station transmission is supported, the DCI also needs to indicate whether information bit mapping of codewords is performed on the RE used for interference measurement by the cooperative base station, and is used to carry phase tracking reference signals for channel estimation. , PT-RS) whether the information bit mapping of codewords is performed on the RE, the rate matching resource set that needs to be configured needs to be further increased, which will cause the number of bits in the indicator segment in the DCI to increase further.
- the method for indicating rate matching resources for transmitting codewords in the prior art is applied to the communication system shown in FIG. 3A to FIG. 3C, there will be a problem of large DCI overhead and the above instructions will be redundant.
- I information For example, two or more independent fields are used to indicate rate matching resource information of a codeword sent by each base station.
- the rate matching resources of multiple codewords may have overlapping parts, that is, multiple codewords need to be rate-matched with some resources. For example, multiple codewords need to be strong with some transmission power and cannot be matched with multiple
- the codewords are space-multiplexed with other users' data or reference signals for rate matching.
- the rate matching resources of multiple codewords may have non-overlapping parts, that is, some codewords in multiple codewords need to match some Rate matching of some resources, for example, when some resources are used to measure interference, some codewords can be transmitted on the resource and other codewords cannot be transmitted on the resource, and for example, some resources are used for channel measurement, and
- the reference signal sent on the resource and a part of the codeword can be transmitted spatially orthogonally, the part of the codeword can be transmitted on the resource and other codewords cannot be transmitted on the resource.
- an embodiment of the present application provides a resource configuration method for reducing DCI overhead.
- NR new radio
- LTE long term evolution
- WiMAX global microwave interconnection Access
- WLAN wireless local area network
- the communication system may also be applicable to future-oriented communication technologies.
- the system described in the embodiments of the present application is to more clearly illustrate the technical solutions of the embodiments of the present application, and does not constitute a technical solution provided by the embodiments of the present application. It is known to those skilled in the art that as the network architecture evolves, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
- FIG. 3A to FIG. 3C are three application scenarios of the embodiment of the present application. These three application scenarios have been described in the previous article and will not be repeated here.
- the number and types of base stations and terminal devices included in the communication system shown in FIG. 3A to FIG. 3C are merely examples, and the embodiments of the present application are not limited thereto. For example, it may also include more base stations, or terminal devices that communicate with more base stations. For concise description, they are not described one by one in the drawings.
- the communication system shown in FIG. 3A to FIG. 3C although a base station and a terminal device are shown, the communication system may not be limited to including a base station and a terminal device.
- the communication system may also include a core network device or These are obvious to those of ordinary skill in the art, such as equipment carrying virtual network functions, and are not described in detail here.
- FIG. 4 is a flowchart of a resource configuration method provided by the present application.
- the method in the embodiment of the present application is applied to the application scenario shown in FIG. 3A, and the method is performed by a base station and a terminal device in the application scenario shown in FIG. 3A as an example.
- it can be performed by the serving base station and the terminal device.
- the base station A is the serving base station and the terminal device is the terminal device A. It can also be performed by the serving base station, the cooperative base station, and the terminal device.
- the serving base station and the terminal device A that is, the base station A and the terminal device A execute the method as an example are described.
- the flowchart is described as follows:
- Step 401 The base station A determines a first resource set and a second resource set.
- the first resource set does not carry information bits included in any one of the N codewords
- the second resource set does not carry information bits included in some of the N codewords.
- N is an integer greater than or equal to two.
- the information bit included in the first resource set that does not carry any one of the N codewords specifically includes: when the resource used to carry any one of the N codewords and the first codeword When any resource element RE in a resource set overlaps, the information bits included in any one of the N codewords are not carried on the overlapped RE. It can be understood that the RE in the first resource set is the N codewords are not used for the set of resources carrying information bits.
- the information bit included in the second resource set that does not carry part of the N codewords specifically includes: when the resource is used to carry part of the N codewords, the resource in the resource set and the second resource set When any one of the REs overlaps, the information bits included in some of the N codewords are not carried on the overlapped REs. It can be understood that the resources in the second resource set are part of the codewords and are not used to carry information. Bit resources, and another part of the codeword may carry information bits on the resources in the second resource set.
- the N codewords can be understood as all codewords configured by the base station, that is, the first resource set corresponds to all codewords, and the N codewords can also be understood as all codewords enabled by the base station.
- the number of the first resource set and the second resource set may be one or multiple.
- the number of the first resource set and the second resource set is one. example.
- Any RE in the first resource set may also be understood as any resource unit in the first resource set.
- the resource unit may be an RE, a combination of multiple REs, or an RB, etc. I will not repeat them here.
- Any RE in the second resource set can also be understood in the same manner, and details are not described herein again.
- the types of resources in the first resource set and the second resource set are the same.
- the resources in the first resource set and the second resource set may be a non-zero-power CSI-RS (NZP-CSI) for downlink channel estimation of a terminal device and channel measurement or beam measurement.
- NZP-CSI non-zero-power CSI-RS
- -RS some or all of the resources, or non-zero or zero-power CSI-RS (Z-CSI-RS) used for interference measurement, or some Some or all of the resources occupied by the common reference signal can be configured as ZP CSI-RS resources.
- the resources in the first resource set and the second resource set are ZP-CSI-RS resources as an example.
- the N codewords are all codewords that the base station in the communication system used by the method may transmit to the terminal device, and the number of codewords used in actual data transmission needs to be further notified.
- the communication system shown in FIG. 3A includes a base station A and a base station B. Each base station can simultaneously transmit a codeword to a terminal device A at the same time, and the value of N can be 2. Since the number of base stations in the communication system shown in FIG. 3A is only an example, when the communication system includes 4 or 5 or 6 base stations, the value of N may be 4 or 5 or 6. In the embodiment of the present application, the value of N is not limited.
- N is taken as an example, and the two codewords are codeword 0 and codeword 1, respectively.
- the first resource set is a resource set shared by the two codewords.
- the second resource set is a resource set dedicated to codeword 0 or codeword 1.
- the base station A may determine the resources in the resource set shared by the two codewords according to one or more of the following situations:
- the base station A and the base station B can communicate with multiple terminal devices at the same time, and the CSI-RS used for channel measurement by other terminal devices is usually a reference signal that has not been beamformed or has not undergone accurate The beamforming reference signal. Therefore, the codewords sent by the base station A and the base station B to the terminal device A and the CSI-RS used for channel measurement by other terminal devices have strong mutual interference.
- both codewords need to be rate-matched with resources occupied by CSI-RSs used for channel measurement by other terminal devices, that is, CSI-RSs used by other terminal devices for channel measurement
- the occupied resources do not carry information bits of any one of the two codewords, and the bandwidth occupied by the reference signal includes both the bandwidth occupied by the codewords scheduled by the base station A and the base station B.
- the resources used by the base station A and the base station B to communicate with the terminal device include resources of a reference signal for channel state information interference measurement (CSI-IM) for measuring interference from other users. Therefore, in order to ensure For the accuracy of interference measurement of the terminal equipment accessing the communication system, both codewords need to be rate-matched with the resources occupied by the reference signal used for CSI-IM, that is, the reference used for CSI-IM.
- the resources occupied by the signals do not carry the information bits of any one of the two codewords, and the bandwidth occupied by the reference signal includes both the bandwidth occupied by the codewords scheduled by the base station A and the base station B.
- Case c When the resources occupied by multiple CSI-RSs used for beam management are configured as on, that is, the terminal device in the communication system fixes its receiving beam in the multiple for beam management On the resources occupied by the CSI-RS, when the receiving base station uses multiple CSI-RSs transmitted by the transmission beam, consider that in the following two scenarios, the two codewords need to be matched with the resources occupied by the same CSI-RS.
- the bandwidth occupied by the reference signal includes both the bandwidth occupied by the codewords scheduled by the base station A and the base station B:
- Base station A and base station B perform beam training while transmitting codewords for terminal device A. Because two beams from one antenna panel cannot be used at the same time, when the beam training transmission beam and the codeword transmission beam are from the antenna panel of the same base station, both codewords need the same resources as those occupied by the same CSI-RS. Perform rate matching. As shown in FIG. 5A, a is a resource occupied by the NZP CSI-RS resource set, and the resource is taken as an example of the RE.
- NZP CSI-RS resource set 1 and NZP CSI-RS resource set 2 are transmitted by base station A using different transmission beams
- NZP CSI-RS resource set 3 and NZP CSI-RS resource set 4 are transmitted by base station B using different transmission beams. send. As shown in FIG.
- the OFDM symbol occupied by the RE included in the NZP CSI-RS resource set 1 is OFDM1
- the occupied subcarrier numbers are subcarrier 0, subcarrier 2, subcarrier 4, and the NZP CSI-RS resource set 2
- the OFDM symbol occupied by the RE is OFDM2
- the subcarrier number occupied is subcarrier 0, subcarrier 2, subcarrier 4, and the OFDM symbol occupied by the RE included in the NZP CSI-RS resource set 3 is OFDM1
- the subcarrier occupied The number is subcarrier 1, subcarrier 3, and the OFDM symbol occupied by the RE included in the NZP CSI-RS resource set 4 is OFDM2, and the number of subcarriers occupied is subcarrier 1, subcarrier 3, respectively.
- NZP CSI-RS resource set 1 cannot come from the same antenna panel
- NZP CSI-RS resource set 3 and NZP CSI -Codeword 1 cannot be transmitted on any OFDM symbol where RS resource set 4 is located. Since the OFDM symbol occupied by the NZP CSI-RS resource set 1 is OFDM1 and the OFDM symbol occupied by the NZP CSI-RS resource set 2 is OFDM2, the RE corresponding to OFDM1 and OFDM2 cannot send codeword 0, so as shown in b.
- the RE that is actually transmitted for the codeword 0 shown is the same; the same is obtained for the RE that is actually transmitted for the codeword 1 shown in Figure c. It can be seen from diagrams b and c that the resources for rate matching with codeword 0 and the resources for rate matching with codeword 1 are the same.
- Base station A and base station B perform beam training and simultaneously transmit codewords for terminal device A.
- the d graph is the RE occupied by NZP CSI-RS resources 1 to NZP CSI-RS resources 4, respectively, of which NZP CSI-RS 1 And NZP CSI-RS 3 are transmitted by base station A using different transmit beams and terminal device A uses the same receive beam, and the receive beam is the same as the receive beam of codeword 0; NZP CSI-RS 2 and NZP CSI-RS 4
- the base station B uses different transmission beams for transmission and the terminal device A uses the same reception beam for reception, and the reception beam is the same as the reception beam of the codeword 1.
- the two codewords need only bypass the RE occupied by the NZP CSI-RS to ensure the reception performance of the CSI-RS and the codeword.
- the resources that are rate-matched with codeword 0 include the OFDM symbol OFDM1, the subcarrier numbers are RE corresponding to subcarrier 0, subcarrier 2, and subcarrier 4, and the OFDM symbol is OFDM2.
- the subcarrier number is the RE corresponding to subcarrier 0, subcarrier 2, and subcarrier 4.
- terminal device A needs to assume that the rule for rate matching with the NZP CSI-RS resources configured by the base station can be established, that is, the terminal device assumes that the REs occupied by PDSCH transmission are simultaneously Bypass all NZP CSI-RS configured for the terminal device and the ZP CSI-RS resource set indicated by the base station for rate matching; or the rule of rate matching with the NZP CSI-RS resource configured by the base station is not established, and That is, the terminal device does not assume in advance that the RE occupied by PDSCH transmission bypasses all NZP CSI-RSs configured for the terminal device, and the terminal device is determined as the terminal device according to the ZP CSI-RS resource set indicated by the base station for rate matching.
- the terminal device does not assume in advance that the data is matched with the non-zero power CSI-RS indicated by the base station to the terminal device when receiving the data.
- the non-zero power CSI-RS completely or partially overlaps with the REs occupied by the enabled first resource set and the second resource set
- the data needs to be rate-matched on the fully or partially overlapping REs.
- the non-zero power CSI-RS does not overlap with the RE occupied by the enabled first resource set and the second resource set, the data does not need to be rate-matched on the non-zero power CSI-RS.
- the way for the base station to indicate non-zero power CSI-RS can be to configure periodic CSI-RS through high-level signaling, or to use semi-static CSI-RS activated through MAC CE, or further to enable aperiodic through DCI.
- CSI-RS can be to configure periodic CSI-RS through high-level signaling, or to use semi-static CSI-RS activated through MAC CE, or further to enable aperiodic through DCI.
- each DCI indicates that a codeword that is enabled is matched with an aperiodic non-zero power CSI-RS that is enabled by each DCI.
- the first DCI is used to indicate enable codeword 0 and to enable aperiodic NZP CSI-RS set 1 for rate matching
- the second DCI is used to indicate enable codeword 1 and indicates acyclic NZP is enabled.
- codeword 0 uses the first NZP indicated by DCI CSI-RS set 1 for rate matching without using NZP CSI-RS set 2 for rate matching
- codeword 1 uses the second The NZP CSI-RS set 2 indicated by the DCI performs rate matching without using the NZP CSI-RS set 2 for rate matching.
- the base station A may determine the resources in the resource set dedicated to the two codewords according to one or more of the following situations:
- the codeword of the cooperative base station can be sent on the resources occupied by the reference signal of the CSI-IM, but the codeword of the serving base station cannot.
- Send on the resource occupied by the CSI-IM reference signal that is, the resource occupied by the CSI-IM reference signal can be used to carry the information bits of the codeword sent by the base station B, but the resource cannot be used It carries the information bits of the codeword sent by the base station A, and as a result, the two codewords need to be rate-matched with different resources.
- the transmission channels between base stations in the cooperative set are orthogonal or approximately orthogonal, and the channel correlation between orthogonal beams is low. Therefore, in the cooperative set, the code sent by one base station There is less interference between the word and a reference signal sent by another base station.
- the channels used to send different signals in a base station have a non-orthogonal relationship, and higher channel correlation between non-orthogonal beams will cause greater interference.
- serving the base station that is, base station A
- the resources occupied by the configured pre-weighted reference signal cannot be used to carry the information bits of the codeword sent by the serving base station (that is, base station A), but this resource can be used to carry the cooperative base station (that is, base station B) )
- Information bits of the codeword sent, and the reference signal that has been weighted with accurate precoding may be a CSI-RS used for CSI feedback, etc., which are not exemplified here. Please refer to FIG. 6A.
- the base station A allocates the same RBs for transmitting codewords to the base station A and the base station B, for example, RB1 to RB3 and RB5 to RB9.
- the OFDM symbol is OFDM2 and the subcarrier number is subcarrier 1, subcarrier 3, and RE corresponding to subcarrier 5 and the OFDM symbol is OFDM4 and the subcarrier number is subcarrier 0, subcarrier 2, and subcarrier.
- the RE corresponding to 4 is not used to carry the information bits of the codeword sent by base station A;
- the OFDM symbol is OFDM2 and the subcarrier number is subcarrier 0 to subcarrier 1, the RE corresponding to subcarrier 4 to subcarrier 5 and the OFDM symbol is OFDM4 and
- the subcarrier numbers are REs corresponding to subcarriers 2 to 5 and are not used to carry the information bits of the codeword sent by the base station B.
- Case f If some RSs only occupy certain subbands, for example, some RSs only occupy frequency-domain resources with a subcarrier number of subcarrier 5.
- the base station A and the base station B respectively indicate the time-frequency resource allocation information of the codewords scheduled by the respective DCI signaling, or the base station A and the base station B instruct the two through a DCI signaling.
- the time-frequency resource allocation information of the codewords respectively scheduled by each base station then the two codewords need to be rate-matched with different resources. As shown in FIG.
- RBs for transmitting codewords allocated to the base station A are RB0 to RB2 and RB7 to RB9
- RBs for transmitting codewords allocated to the base station B are RB2 to RB3 and RB5 to RB6.
- the resource allocated for transmitting the codeword for base station A includes the RS
- the resource allocated for transmitting the code for base station B This resource does not include the RS. Therefore, base station A needs to perform rate matching on the resources occupied by the RS, and base station B does not need to perform rate matching on the resources occupied by the RS. Therefore, base station A and base station B need to match Different resources perform rate matching.
- the base station A determines a resource set shared by the codeword 0 and the codeword 1 and a resource set dedicated to the codeword 0 and the codeword 1 according to the foregoing manner.
- the first resource set (the resource set shared by codeword 0 and codeword 1) is ZP CSI-RS resource set 1
- the second resource set (for example, the resource set dedicated to codeword 0) is the ZP CSI-RS resource set 2.
- Step 402 The base station A sends the first information and the second information, and the terminal device A receives the first information and the second information.
- the first information is used to indicate a first resource set
- the second information is used to indicate a second resource set.
- high-level signaling such as radio resource control (radio resource control (RRC) signaling or media access control element (media access control) control element (MAC, CE) signaling indicates the first information and the second information to the terminal device A.
- RRC radio resource control
- MAC, CE media access control control element
- first information and the second information are only used to indicate the resources included in the resource set. It can be understood that the first information and the second information are only used to indicate that the base station A is configured with two uses for the terminal device A.
- the resource sets for rate matching are the first resource set and the second resource set, and which resources are included in the first resource set, and / or configuration information of the resources included in the resource set, and which are included in the second resource set. Resources, but the first information and the second information may not include the purpose of the first resource set and the second resource set, that is, the correspondence relationship with the N codewords, or the first information set and the second information set are not passed.
- the information indicates to the terminal device A which of the first resource set and the second resource set is a resource set shared by codeword 0 and codeword 1, and which resource set is a resource set dedicated to codeword 0 or codeword 1. .
- first information and the second information may be the same information, which can be understood as one information is used to indicate the first resource set and the second resource set; the first information and the second information may also be two It can be understood that the base station A sends two pieces of information, which respectively indicate the first resource set and the second resource set. When the first information and the second information are two different information, the same information can be sent through the same information.
- the high-level signaling sends the first information and the second information, or the first information and the second information may be sent through different high-level signaling, respectively.
- the base station A is a serving base station
- the first information and the second information can be sent by the base station A, or the base station A can control the base station B to send, or the base station A can send one message, and the base station A controls the base station B to send another message.
- the specific sending method is not limited here.
- Step 403 The terminal device A determines the first resource set and the second resource set.
- the terminal device A receives the first information and the second information, according to the first information And the content indicated in the second information, it is determined that the first resource set is a resource included in ZP CSI-RS resource set 1 or ZP CSI-RS resource set 1, and the second resource set is ZP CSI-RS resource set 2 or ZP CSI -The resources included in the RS resource set 2 to determine the time-frequency resource position occupied by the resources in each resource set.
- Step 404 The base station A sends downlink control information DCI, and the terminal device A receives the DCI.
- the terminal device A does not indicate to the terminal device A which of the first resource set and the second resource set. It is a resource set shared by codeword 0 and codeword 1. Which resource set is a resource set dedicated to codeword 0 or codeword 1. Therefore, when the base station A indicates to the terminal device A the first resource set and the second resource set Then, it is necessary to send third information to the terminal device A, where the third information is used to indicate that the first resource set does not carry the information bits included in any one of the N codewords and / or the second resource set Information bits included in some of the N codewords are not carried.
- the third information is indicated by a field in the DCI.
- the third information may be indicated through one field in the DCI, or the third information may be indicated through multiple fields in the DCI.
- the DCI indication method is described by taking, as examples, one field in the DCI to indicate the third information and two fields in the DCI to indicate the third information.
- a field in the DCI is used to indicate the third information. Taking the field as the first field as an example, the details are as follows:
- the first status value of the first field is used to indicate that the first resource set does not carry the information bits included in any one of the N codewords;
- the second status value of the first field is used to indicate that the second resource set does not carry information bits included in some of the N codewords;
- the third status value of the first field is used to indicate that the first resource set does not carry the information bits included in any one of the N codewords and the second resource set does not carry a portion of the N codewords Information bits included in the codeword; or
- the third status value of the first field is used to indicate that no rate matching is performed on the first resource set and the second resource set.
- the first field may only be used to indicate one of the above status values, such as the first status value, that is, the first field has only one status value; the first field may also be used to indicate multiple of the above status values.
- State values for example, the first field can be used to indicate the first state value and the second state value.
- the first field is a 1-bit field. This bit can have two values. The value of this bit is " 0 "indicates the first status value, and the value of this bit is" 1 "indicates the second status value; or, the first field can also be used to indicate the first status value, the second status value, and the third status value,
- the first field is a two-bit field, and the two bit values can have four types, "00" to "11". Three of the four values are used to indicate the first field.
- other indication methods can also be used, which is not limited here.
- the first field is predetermined by the base station A and the terminal device A, or is indicated by the base station A through the first information or the second information, or is notified by the base station A through other signaling. No restrictions. The following describes the indication method with two examples.
- the first resource set is ZP CSI-RS resource set 1
- the second resource set is a resource set dedicated to codeword 0, and is ZP CSI-RS resource set 2.
- Each status value of the first field may indicate at least one ZPCSI-RS resource set.
- the first field includes 2 bits, so the first field includes 4 status values, which are "00" and "01", respectively. , "10", "11", pre-appoint the ZP CSI-RS resource set indicated by each status value, for example, when the status value of the first field is "11", it is used to indicate the ZP CSI-RS resource set 1 ; When the status value of the first field is "01”, it is used to indicate ZP CSI-RS resource set 2; when the status value of the first field is "10", it is used to indicate ZP CSI-RS resource set 1 and ZP CSI-RS resource set 2, when the status value of the first field is "00", it is used to indicate that ZP-CSI-RS resource set is not enabled.
- a mapping relationship between each state value and a common resource set and a dedicated resource set is agreed in advance.
- the status value of the first field indicates a ZP CSI-RS resource set
- the ZP CSI-RS resource set indicated by the status value is a ZP CSI-RS resource set shared by two codewords or a part of the codeword is dedicated
- the status value of the first field indicates two or more ZP CSI-RS resource sets
- it means that one of the ZP CSI-RS resource sets indicated by the status value is The ZP CSI-RS resource set shared by the two codewords, and the remaining resource set is the ZP CSI-RS resource set dedicated to some codewords of the 2 codewords.
- the ZP CSI-RS resource set with a smaller index value is The ZP CSI-RS resource set shared by the two codewords.
- the larger ZP CSI-RS resource set index value is the ZP CSI-RS resource set dedicated to one of the two codewords.
- the ZP CSI-RS indicated by the status value may be Other information of the RS resource set, such as the index or number of the ZP CSI-RS resource set, distinguishes whether the ZP CSI-RS resource set indicated by the status value is a ZP CSI-RS resource set dedicated to 2 codewords or a partial code Word-specific ZP CSI-RS resource set, for example, taking the index number as an example, it is agreed in advance that if the index number is the initial value, the ZP CSI-RS resource set is a ZP CSI-RS resource set shared by two codewords, for example, the index The initial value of the number is 0 or 1.
- the ZP CSI-RS resource set whose index number is not the initial value is the ZP CSI-RS resource set shared by some codewords.
- the initial value of the index number is 1. If the status value indicates The index number of the ZP CSI-RS resource set is continuous with the initial value, that is, 2, it is determined that the ZP CSI-RS resource set is a resource set dedicated to codeword 0. If the ZP CSI-RS resource set indicated by the status value is The index number is not continuous with the initial value, such as If it is 3, it is determined that the ZP CSI-RS resource set is a resource set dedicated to codeword 1.
- the remaining resource set is in the two codewords.
- the ZP CSI-RS resource set dedicated to part of the codeword is determined through a predefined rule, the common resource set is distinguished from the resource set dedicated to part of the codeword.
- the predefined rule may be: The status value indicates The first resource set of multiple ZP CSI-RS resource sets is a shared resource set, and the remaining resource set is a resource set dedicated to part of the codeword. Among them, how to distinguish the remaining resource set is a dedicated resource set of codeword 0. It is also a dedicated resource set for codeword 1.
- the specific distinguishing method is the same as the ZP CSI-RS resource set indicated by the status value, which is shared by two codewords.
- the ZP CSI-RS resource set or the resource set dedicated to some codewords are the same, and will not be repeated here.
- the second resource set does not carry part of the codewords in the N codewords.
- the specific indication is that the base station further configures the number of codewords in the configuration information of the second resource set through high-level signaling, or the number of codewords. Index value, the second resource set is only effective for the codewords included in the configuration information of the set.
- the base station further indicates a partial codeword corresponding to the second resource set through DCI signaling, that is, directly indicates the second resource set and partial codewords (including the number of codewords or an index value of the codewords) in the first field. ),
- the second resource set is only effective for the codeword included in the configuration information of the set, or the second resource set may be further enabled through the first field.
- the base station may implicitly indicate a part of the codeword corresponding to the second resource set through DCI signaling.
- some of the resource sets in the resource set configured through high-level signaling are predefined as the first resource set, and the rest are the second resource set.
- the codeword corresponding to the second resource set is the codeword enabled by the DCI that enables the second resource set.
- one DCI is used to schedule data transmission and the DCI includes two fields
- the resource set is enabled, the codeword corresponding to each field is defined in advance, and the codeword corresponding to the second resource set is the codeword corresponding to the field enabling the second resource set.
- codeword 0 and codeword 1 both have dedicated resource sets.
- the second resource set configured by base station A is a resource set in the third resource set. It can be understood that the second resource set is the third resource set.
- a subset of the resource set for example, the third resource set is a resource set dedicated to codeword 0 and a resource set dedicated to codeword 1, and the second resource set is a resource set dedicated to codeword 0.
- the first resource set is the ZP CSI-RS resource set 1
- the second resource set is the resource set dedicated to codeword 0, the ZP CSI-RS resource set 2
- the third resource set also includes the resource set dedicated to codeword 1.
- Each status value of the first field may indicate at least one ZPCSI-RS resource set.
- the first field includes 1 bit, so the first field includes 2 status values, which are "0" and "1", respectively.
- the ZP CSI-RS resource set indicated by each status value is agreed in advance. For example, please refer to Table 5. In Table 5, when the status value of the first field is "0", it is used to indicate the ZP CSI-RS resource. Set 1; when the status value of the first field is "1", it is used to indicate ZP CSI-RS resource set 1 to ZP CSI-RS resource set 3.
- a mapping relationship between each state value and a common resource set and a dedicated resource set is agreed in advance.
- the status value of the first field indicates a ZP CSI-RS resource set
- it indicates that the ZP CSI-RS resource set indicated by the status value is a ZP CSI-RS resource set shared by two codewords.
- the status value indicates two or more ZP CSI-RS resource sets
- it means that one of the ZP CSI-RS resource sets indicated by the status value is a ZP CSI-RS resource set that is a ZP shared by two codewords.
- -RS resource set, and the remaining resource set is a ZP CSI-RS resource set dedicated to part of the 2 codewords.
- the remaining resource set is 2 codewords.
- a common resource set is distinguished from a resource set dedicated to some codewords through a predefined rule.
- the predefined rule may be: The second resource set of the indicated multiple ZP CSI-RS resource sets is a common resource set, the first resource set is a resource set dedicated to codeword 0, and the third resource set is a resource set dedicated to codeword 1. . Please refer to Table 5.
- the second resource set in Table 5 is ZP CSI-RS resource set 1.
- the resource set shared by codeword 0 and codeword 1 is ZP CSI-RS resource set 1.
- the first one in Table 5 The resource set is ZP CSI-RS resource set 2, and the resource set dedicated to codeword 0 is ZP CSI-RS resource set 2.
- the third resource set in Table 5 is ZP CSI-RS resource set 3, and codeword 1 is dedicated The resource set is ZP CSI-RS resource set 3.
- the second indication method two fields in the DCI are used to indicate the third information.
- the two fields are used as the second field and the third field as an example, as follows:
- the second field is used to indicate that the first resource set does not carry the information bits included in any one of the N codewords
- the third field is used to indicate that the second resource set does not carry the information bit. Information bits included in part of the N codewords.
- the second field is used to indicate that the first resource set does not carry the information bits included in any one of the N codewords
- the third field is used to indicate that the first resource set does not carry the information bit.
- the information bits included in any one of the N codewords and the second resource set do not carry the information bits included in a part of the N codewords.
- the second field and the third field are predetermined by the base station A and the terminal device A, or are indicated by the base station A through the first information or the second information, or are notified by the base station A through other signaling. For example, it is determined whether the resource set indicated by the second field and the third field is the first resource set or the second resource set according to the number of enabled codewords. For example, when the number of enabled codewords is 1, both fields are used to indicate the first resource Set, when the number of enabled codewords is greater than 1, one field is used to indicate the first resource set, and the other field is used to indicate the second resource set.
- it can also be indicated in other ways, which are not listed here one by one.
- the role of the resource set indicated by the second field and the role of the resource set indicated by the third field may also be predetermined.
- the second field is used to indicate a shared resource set and the third field is used to indicate a dedicated resource set, and the status value of each field may indicate at least one ZP-CSI-RS resource set,
- the second field is 1 bit, and the status value of the second field includes "0" and "1".
- the status value of the second field is "0", it is used to indicate ZP CSI-RS resource set 1;
- the status value of the first field is "1"
- the indication method of the third field is the same as that of the second field, and details are not described herein again.
- the second field is agreed in advance to indicate a common resource set
- the third field is used to indicate a common resource set and a resource set dedicated to some codewords.
- the indication manner of the second field is the same as that in the first example, and the indication manner of the third field may refer to the second example in the first indication manner, and details are not described herein again.
- the status value of the first field is also used to indicate that at least one resource set is enabled from the first resource set and the second resource set; or, the second field and / or the third field It is also used to indicate that at least one resource set is enabled from the first resource set and the second resource set.
- the resource set indicated by the first field is at least one resource set that the base station A needs to enable.
- Enabling at least one resource set can be understood as enabling the rate matching function in the resource set indicated in the first field, or it can be understood that the codeword to be transmitted needs to be rate matched with the resource set indicated in the first field, or It can be understood as indicating the effective time or effective times of the resource collection.
- the status value of the first field is 1, the status value indicates that the shared resource set is ZP CSI-RS resource set 1, then the status value is also used to indicate that ZP CSI-RS resource set 1 is enabled. (That is, the first resource set) to perform rate matching.
- the status value of the first field When the status value of the first field is 0, the status value indicates that the shared resource set is the ZP CSI-RS resource set 1, the resource set dedicated to the codeword 0 is the ZP CSI-RS resource set 2 and the resource set dedicated to the codeword 1. Is ZP CSI-RS resource set 3, this status value is also used to indicate that ZP CSI-RS resource set 1 (that is, the first resource set), ZP CSI-RS resource set 2 (that is, the second resource set), and The ZP CSI-RS resource set 3 performs rate matching.
- the DCI indicates that the resource set x is enabled.
- the resource set takes effect on the current data transmission indicated by the DCI.
- the second field or one of the third fields may be used to indicate at least one resource set that the base station A needs to enable, for example, only the second field may be used. Indicates at least one resource set that needs to be enabled, or the second field and the third field can also be used to indicate at least one resource set that needs to be enabled by base station A, for example, the second field indicates ZP CSI-RS resource set 1, the third field If the ZP CSI-RS resource set 2 is indicated, the resource set to be activated by the base station A is the ZP CSI-RS resource set 1 (that is, the first resource set) and the ZP CSI-RS resource set 2 (that is, the second resource set).
- N is greater than 2
- the specific indication method is the same as when N is taken as 2, which is not repeated here.
- Step 405 The terminal device A determines, according to the DCI, that the first resource set does not carry information bits included in any one of the N codewords, and / or the second resource set does not carry part of the N codewords. Information bits.
- the terminal device A After receiving the DCI, the terminal device A determines the foregoing content according to the fields in the DCI. Specifically, the field may be the first field in step 404, or may be the second field and the third field in step 404.
- the terminal device A may also determine the resource set enabled by the base station A according to the field.
- Step 406 The base station A instructs at least one of the N codewords to be enabled, and the terminal device A determines the enabled codeword.
- the base station A may use one field in the DCI carrying the third information to indicate at least one codeword that is enabled, for example, enable codeword 0 or enable codeword 1 or enable codeword 0 and codeword 1, or base station A It is also possible to indicate that at least one codeword is enabled by sending a DCI again, which is not limited herein. Enabling the codeword can be understood as that the base station A needs to transmit the codeword.
- Step 407 The base station A sends the enabled codeword, and the terminal device A receives the enabled codeword.
- the enabled codeword be codeword 0, and the bit sequence of codeword 0 is For example, where Is the number of bits of codeword 0 transmitted in PDSCH, base station A calculates the bit sequence of codeword 0 and the scrambling sequence c (q) (i) to obtain the scrambled bit sequence Then, base station A may use any one of quadrature phase shift keying (QPSK) or 16-symbol quadrature amplitude modulation (QAM) or 64QAM or 256QAM modulation. Scrambled bit sequence Modulate to get a set of complex-valued modulation symbols The layer mapping rules shown in Table 6 are then used to map the complex-valued modulation symbols to one or more layers.
- QPSK quadrature phase shift keying
- QAM 16-symbol quadrature amplitude modulation
- Scrambled bit sequence Modulate to get a set of complex-valued modulation symbols
- the layer mapping rules shown in Table 6 are then used to map the complex-valued modulation symbols to
- each codeword supports a maximum of 4 layers of downlink data transmission, and each codeword corresponds to its own independent coding and modulation scheme (MCS), which is transmitted from the base station A to the DCI of the terminal device A It contains the MCS field corresponding to each codeword, which indicates information such as modulation mode, target code rate, and spectral efficiency information.
- MCS independent coding and modulation scheme
- the PDSCH resource may be indicated by a DCI for carrying the third information, or may be indicated by another DCI, which is not limited herein.
- the frequency domain resource of the PDSCH resource allocated to the terminal device A by the DCI indication includes two indication modes.
- the first method is a distributed frequency domain resource indication method.
- the configuration information of the indication method includes a bitmap indicating a resource block group (RBG) allocated to the terminal device A. For a bandwidth part (BWP), the BWP is divided according to the RBG size granularity, and each RBG size bandwidth corresponds to one bit in the bitmap.
- the second method is centralized frequency domain resource allocation.
- the configuration information of the indication method includes the starting position of the scheduled PRB and the number of PRBs.
- the scheduling method is continuous frequency domain resource scheduling.
- the configuration information of the indication mode also includes time-domain resource allocation, which may specifically be indicated by the starting position of the scheduled OFDM symbols and the number of OFDM symbols, and may also include the starting position of the scheduled slot and the slot.
- the number of instructions For example, as shown in Fig. 7, the BWP contains 4 PRBs, the RBG size is 1 PRB, and the time domain resource is allocated as 1 slot and 12 OFDM symbols. Then the bitmap indicates "1010" and the corresponding resource is allocated as the terminal. PDSCH resource of device A.
- the rate matching resources (the first resource set) shared by N codewords and the rate matching resources (the second resource set) dedicated to some codewords in the N codewords are configured, and the DCI is used to indicate the
- the shared rate matching resource and the dedicated rate matching resource can reduce repetition to indicate the same rate matching resource for N codewords, and can reduce the number of bits of the indication field used to indicate the rate matching resource during CoMP transmission. Save the overhead of the indication information used to indicate the rate matching resources.
- the first resource set and the second resource set instructed by the base station to the terminal device through the DCI are introduced.
- An embodiment is described below to introduce the base station indicating the first resource set and the second resource set in other ways.
- FIG. 8 is a flowchart of another resource allocation method provided by the present application.
- the method in the embodiment of the present application is applied to the application scenario shown in FIG. 3A, and the method is performed by a base station and a terminal device in the application scenario shown in FIG. 3A as an example.
- it can be performed by the serving base station and the terminal device.
- the base station A is the serving base station and the terminal device is the terminal device A. It can also be performed by the serving base station, the cooperative base station, and the terminal device.
- the serving base station and the terminal device A that is, the base station A and the terminal device A execute the method as an example are described.
- the flowchart is described as follows:
- Step 801 The base station A determines a first resource set and a second resource set.
- Step 801 is the same as step 401, and details are not described herein again.
- Step 802 The base station A sends the first information and the second information, and the terminal device A receives the first information and the second information.
- the first information and the second information include the content of the first information and the second information in step 402, and the first information further includes identification information of the first resource set and the N pieces of information. Identification information of a codeword, the second information includes identification information of the second resource set and identification information of a part of the N codewords.
- the base station A indicates the role of the first resource set and the second resource set by explicitly configuring identification information of a codeword corresponding to each resource set in the first information and the second information.
- the resource set indicated by the information is considered to be a rate matching resource shared by the N codewords; when the first information or When one piece of information in the second information includes identification information of partial codewords of the N codewords, the resource set indicated by the information is considered to be a rate matching resource dedicated to the partial codeword.
- the identification information of the resource set may be information such as the number and index number of the resource set, and the identification information of the code word may be the index number and number of the code word.
- N 2 as an example
- the two codewords are codeword 0 and codeword 1, respectively.
- the resource set shared by the two codewords is ZP CSI-RS resource I (Roman character), and the first information includes A
- the three pieces of identification information are 0, 1 and 0.
- the base station A and the terminal device A agree in advance that the Roman characters indicate the number of the resource set, and the numbers indicate the number of the codeword. Because the first information includes the number of 2 codewords, the The resource set indicated by the first information is a resource set shared by the two codewords.
- the identification information included in the second information is set in the same manner, and details are not described herein again.
- Step 803 The terminal device A determines, according to the first information and the second information, that the first resource set does not carry information bits included in any one of the N codewords and / or the second resource set does not carry N codewords.
- a part of the codeword includes information bits.
- the terminal device A After receiving the first information and the second information, the terminal device A, according to the first information and The content in the second information determines that the first resource set is the ZP CSI-RS resource set 1, the resources included in the ZP CSI-RS resource set 1, and the first resource set is the resource set shared by the two codewords, and the second resource The set is the ZP CSI-RS resource set 2, the resources included in the ZP CSI-RS resource set 2, and the second resource set is a resource set dedicated to part of the codeword (when the identification information of the codeword included in the second information is a codeword 0, the second resource set is a dedicated resource set of codeword 0).
- Step 804 The base station A indicates the enabled at least one resource set, and the terminal device determines the enabled at least one resource set.
- the base station A may indicate at least one resource set enabled through DCI. Specific instructions are not limited here.
- Step 805 The base station A instructs at least one of the N codewords to be enabled, and the terminal device A determines the enabled codeword.
- steps 504 and 505 may be indicated by a DCI.
- one field in the DCI is used to indicate at least one resource set enabled, and the other field is used to indicate at least one codeword enabled; or, It can also be indicated by two DCIs, which are not limited here.
- Step 806 The base station A sends the enabled codeword, and the terminal device A receives the enabled codeword.
- Step 806 is the same as step 407, and details are not described herein again.
- the base station displays the first information and the second information to indicate the rate matching resources (the first resource set) shared by the N codewords and the rate matching resources (the second resource) dedicated to some codewords in the N codewords Set), so that it is not necessary to indicate the configuration of the rate matching resource during CoMP transmission, and the overhead of the indication information for indicating the rate matching resource can be saved.
- the first resource set and the second resource set configured by the base station for the terminal device in an explicit configuration manner are introduced.
- An embodiment is described below to introduce the base station indicating the first resource set and the second resource set in other ways.
- FIG. 9 is a flowchart of another resource configuration method provided by the present application.
- the method in the embodiment of the present application is applied to the application scenario shown in FIG. 3A, and the method is performed by a base station and a terminal device in the application scenario shown in FIG. 3A as an example.
- it can be performed by the serving base station and the terminal device.
- the base station A is the serving base station and the terminal device is the terminal device A. It can also be performed by the serving base station, the cooperative base station, and the terminal device.
- the serving base station and the terminal device A that is, the base station A and the terminal device A execute the method as an example are described.
- the flowchart is described as follows:
- Step 901 The base station A determines a first resource set and a second resource set.
- Step 901 is the same as step 401, and details are not described herein again.
- the first resource set is the ZP CSI-RS resource set 1
- the first resource set is the resource set shared by the two codewords (codeword 0 and codeword 1);
- the second resource set is the ZPCSI-RS resource set 2.
- the second resource set is a resource set dedicated to codeword 0.
- Step 902 The base station A sends the first information and the second information, and the terminal device A receives the first information and the second information.
- Step 902 is the same as step 402, and details are not described herein again.
- Step 903 The base station A sends fourth information, and the terminal device A receives the fourth information.
- the content indicated by the fourth information includes the following two specific contents:
- the first content the fourth information is used to indicate the first resource set, and is used to indicate that at least one of the N codewords is enabled.
- the resource set indicated by the fourth information when the fourth information is used to indicate the first resource set and used to indicate that one of the N codewords is enabled, the resource set indicated by the fourth information does not carry the enabled A codeword consists of information bits.
- the fourth information is used to indicate the first resource set and used to indicate that multiple codewords in the N codewords are enabled, the resource set indicated by the fourth information does not carry the enabled multiple codewords Information bits included in any one of the codewords.
- the fourth information indicates the ZP CSI-RS resource set 1 and the enable codeword 0, then the ZP CSI-RS resource set 1 does not carry the information bits included in the codeword 0; the fourth information indicates the ZP CSI-RS resource set 1 and indicates that codeword 0 and codeword 1 are enabled, ZP CSI-RS resource set 1 does not carry the information bits included in codeword 0 and ZP CSI-RS resource set 1 does not carry the information bits included in codeword 1.
- the second content the fourth information is used to indicate the first resource set and the second resource set, and is used to indicate that at least one of the N codewords is enabled.
- the fourth information when the fourth information is used to indicate the first resource set and the second resource set and used to indicate that one of the N codewords is enabled, the fourth information indicates the The first resource set and the second resource set do not carry information bits included in the enabled codeword.
- the fourth information when the fourth information is used to indicate the first resource set and the second resource set, and is used to indicate that multiple codewords of the N codewords are enabled, the first resource set indicated by the fourth information does not bear Information bits included in any one of the plurality of enabled codewords, and the second resource set indicated by the fourth information does not carry information bits included in some of the plurality of enabled codewords.
- the fourth information indicates ZP CSI-RS resource set 1 and ZP CSI-RS resource set 2 and indicates that the enable codeword 0, then ZP CSI-RS resource set 1 and ZP CSI-RS resource set 2 do not carry codes.
- the information bits included in word 0; the fourth information indicates ZP CSI-RS resource set 1 and ZP CSI-RS resource set 2 and indicates that codeword 0 and codeword 1 are enabled, and ZPCSI- Which of the RS resource set 1 and the ZP-CSI-RS resource set 2 is the first resource set and which is the second resource set, for example, the value of the identification information such as the index number or the number among the multiple resource sets indicated by the fourth information is the smallest
- the resource set is the first resource set, and the resource set other than the first resource set among the multiple resource sets indicated by the fourth information is the second resource set, so that the ZP CSI-RS resource set 1 is determined as the first resource set, ZP CSI-RS resource set 2 is the second resource set. Then, ZP CSI-RS resource
- sending the fourth information may include but is not limited to the following two ways:
- First sending mode A DCI is sent, and the fourth information is indicated by a field in the DCI.
- the fourth information may be indicated by a fourth field in the DCI.
- This fourth field is predetermined by the base station A and the terminal device A, or may be configured by the base station A.
- the fourth field is used to indicate at least one resource set and to enable at least one of the N codewords.
- the fourth field may include a plurality of status values, and a part of the status values is used to indicate an enabled codeword, and another part of the status values is used to indicate a resource set.
- the fourth field may include 3 bits. The first two bits are used to indicate the enabled codeword. When the status values of the first two bits are “00”, they are used for Indicates the enabled codeword 0. When the status of the first two bits is "01”, it is used to indicate the enabled codeword 1. When the status of the first two bits is "10", it is used to indicate the enabled codeword 0 And codeword 1.
- the last bit of the fourth field is used to indicate a resource set, and each status value of the last bit may indicate at least one resource set. For example, when the status value of the last bit is "0", it is used to indicate ZP When the status value of the last bit of CSI-RS resource set 1 and ZP-CSI-RS resource set 2 is "1", it is used to indicate ZP-CSI-RS resource set 1.
- the resource set indicated by the last bit is a resource set
- the resource set indicated by the last bit is a first resource set
- the resource set indicated by the last bit is a plurality of resource sets
- the last The resource set indicated by one bit is a first resource set and a second resource set.
- each status value can be used to indicate both the enable codeword and the corresponding resource set.
- the resource set indicated by the fourth field does not carry the information bits included in the enabled one codeword, for example, when the status value of the fourth field is When it is "00", it is used to indicate that the codeword 0 is enabled, and the ZP CSI-RS resource set 1 is indicated. Then, the ZP CSI-RS resource set 1 does not carry the information bits included in the codeword 0.
- the first resource set indicated by the fourth field does not carry the information bits included in each of the multiple codewords of the enabled multiple codewords, and the The second resource set indicated by the fourth field does not carry information bits included in some codewords of the enabled multiple codewords.
- the status value of the fourth field is "01"
- which resource set of ZP CSI-RS resource set 1 and ZP CSI-RS resource set 2 can be determined according to a preset rule Is the first resource set, and the preset rule may be to determine the size of the index number of the multiple resource sets indicated, the resource set with the lower index number is the first resource set, and the resource set with the larger index number is the second resource set.
- ZP CSI-RS resource set 1 does not carry the codeword 0 and the information bits included in codeword 1
- ZP CSI-RS resource set 2 does not carry the information bits included in codeword 1.
- a fifth field in the DCI indicates the first resource set
- a sixth field in the DCI indicates the second resource set.
- the fifth field and the sixth field are predetermined by the base station A and the terminal device A, or may be configured by the base station A, and the role of the resource set indicated by the fifth field and the role of the resource set indicated by the sixth field It may also be predetermined by the base station A and the terminal device A or configured by the base station A.
- the manner in which the fifth field and the sixth field indicate the resource set may be the same as the fourth field, that is, the status values of the fifth field and the sixth field may be used to indicate different resource sets, and details are not described herein again.
- the fifth field or one of the sixth fields may be used to indicate at least one codeword that is enabled, or the fifth field and the sixth field are used to indicate the enabled codeword, for example, the fifth field indicates the enabled codeword 0
- the sixth field indicates that the enabled codeword 1 indicates that the enabled codewords of the base station A are codeword 0 and codeword 1.
- the manner in which the fifth field and / or the sixth field indicate the enabled at least one codeword is the same as the manner in which the fourth field indicates the enabled at least one codeword, and details are not described herein again.
- the resource set indicated by the fifth field and the sixth field does not carry the information bits included in the enabled one codeword.
- the resource set indicated by the fifth field does not carry the information bits included in the enabled one codeword.
- the resource set indicated by the fifth field does not carry the information bits included in each of the multiple codewords of the enabled multiple codewords, and the sixth field The indicated resource set does not carry information bits included in some codewords of the enabled multiple codewords.
- the second sending method sending two DCIs, and indicating the fourth information through a field in the two DCIs.
- sending two DCIs may be that the base station A sends the content of one DCI to the base station B, and then the base station B sends.
- the central controller sends the scheduling strategy to the base stations A and B after performing unified scheduling, and the base stations A and B respectively instruct the DCI.
- the two DCIs have independent time-frequency resource configuration, and / or independent terminal device blind detection methods.
- the blind device detection methods include a blind detection cycle, a blind detection DCI format, and a DCI type (common DCI, terminal device-specific DCI), number of blind detections, aggregation level, etc.
- the first DCI of the two DCIs is used to indicate the first resource set and used to indicate that the first codeword of the N codewords is enabled
- the second DCI of the two DCIs is used to indicate The second resource set and the second codeword are used to indicate that the second codeword is enabled.
- the role of the first DCI and the role of the second DCI may be agreed between the base station A and the terminal device A, or may be configured by the base station A.
- the role of the first DCI or the role of the second DCI can be understood as whether the resource set indicated in the first DCI or the second DCI is the first resource set or the second resource set.
- the manner in which the first DCI indicates the first resource set or the second DCI indicates the second resource set is the same as the manner in which the first DCI indicates the resource set through one DCI, and details are not described herein again.
- the resource set indicated by the first DCI does not carry the information bits included in any one of the first codeword and the second codeword, and the resource set indicated by the second DCI does not carry the first codeword or the second codeword.
- a codeword contains information bits.
- the first codeword may be M codewords of the N codewords
- the second codeword may be K codewords of the N codewords
- M and K are less than or equal to A positive integer of N.
- the resource set indicated by the first DCI does not carry the information bits included in any one of the M codewords and the K codewords
- the resource set indicated by the second DCI does not carry the K codewords.
- the resource set indicated by the first DCI does not carry the information bits included in any one of the M codewords and the K codewords
- the resource set indicated by the second DCI does not carry the M codewords and the Information bits included in some of the K codewords.
- the base station A carries the identification information of the first resource set and the identification information of the N codewords in the first information, and carries the identification information of the second resource set and the partial codes of the N codewords in the second information
- the word identification information has the same meaning as that in step 802.
- the first information carries identification information of codeword 0, codeword 1, and codeword 2
- the second information carries identification information of codeword 0 and codeword 1.
- the resource set indicated in the second DCI does not carry the information bits included in codeword 0 and codeword 1, that is, The resource set indicated in the second DCI does not carry the information bits included in the M codewords and some of the K codewords.
- the second resource set is a resource set in the third resource set. It can be understood that the third resource set includes a dedicated resource set for each of the N codewords, and the second resource set is a part of the codewords. Dedicated resource collection. For example, the N codewords are codeword 0 and codeword 1, the third resource set includes a dedicated resource set for codeword 0 and a dedicated resource set for codeword 1, and the second resource set is a dedicated resource set for codeword 0.
- the first DCI of the two DCIs is used to indicate the first resource set and the second resource set, and is used to indicate that the first codeword of the N codewords is enabled.
- a second DCI among the DCIs is used to indicate at least one resource set in the third resource set except the second resource set, and is used to indicate that the second codeword in the N codewords is enabled.
- the manner in which the first DCI indicates the first resource set and the second resource set is the same as the manner in which the fourth information is indicated by a DCI in the first sending manner, and details are not described herein again.
- the first resource set indicated by the first DCI does not carry the information bits included in any one of the first codeword and the second codeword
- the second resource set indicated by the first DCI and the second DCI The resource set indicated in does not carry the information bits included in the first and second codewords.
- neither the first resource set indicated by the first DCI and the second resource set carry the information bits included in any one of the first codeword and the second codeword
- the second DCI indicates that the resource does not carry the second codeword. Information bits included.
- the first codeword may be M codewords of the N codewords
- the second codeword may be K codewords of the N codewords
- M and K are less than or equal to A positive integer of N. Then the first resource set indicated by the first DCI does not carry the information bits included in any one of the M codewords and the K codewords, and the second resource set indicated by the first DCI and the resource indicated by the second DCI The set does not carry the information bits included in the M codewords and some of the K codewords.
- the first resource set and the second resource set indicated by the first DCI do not carry the information bits included in any one of the M codewords and the K codewords, and the resource set indicated by the second DCI does not carry the information bit.
- K codewords include information bits.
- the fourth information is also used to indicate a transmission mode of the N codewords.
- the transmission mode includes a first transmission mode and a second transmission mode.
- the first transmission mode the information bits in the N codewords are the same.
- the second transmission mode The information bits in the N codewords are different.
- the first transmission mode includes a single base station transmission mode or a spatial multiplexing-based transmission.
- the single base station transmission mode is a transmission mode in which a terminal device can only communicate with one base station at a time. It can be understood It is the transmission mode in the prior art described in the background.
- the diversity transmission mode that is, the two base stations in the cooperation set use different transmission methods, for example, different precoding methods, or different transmission powers, or different transmission beams are used to send the same codeword.
- the second transmission mode can also be understood as non-coherent joint transmission (NC-JT), that is, multiple base stations in the cooperative set transmit codewords for terminal equipment at the same time, and antennas of multiple base stations perform independent precoding That is, each base station independently selects the optimal precoding matrix to perform joint phase and amplitude weighting between the base station antennas.
- NC-JT non-coherent joint transmission
- the fourth information indicates that the number of enabled codewords is greater than 1 and only the first resource set is enabled, or that the resource sets enabled for the two codewords are the same, it indicates that the transmission mode is the first transmission mode;
- the four pieces of information indicate that when the number of enabled codewords is greater than one and both the first resource set and the second resource set are enabled, it indicates that the transmission mode is the second transmission mode.
- the first transmission mode includes a single base station transmission mode and a diversity transmission mode, which can be distinguished by other fields in the DCI. For example, it can be identified by MCS / new data indicator (NDI) / redundant version ( The number of redundancy (RV) fields, the port number indicated by the DM-RS port indication field, and the like are determined. For example, when is the single base station transmission mode and when is the diversity transmission mode. For example, all orthogonal DM-RS ports are divided into port set 1 and port set 2. When the DM-RS port indication field indicates port set 1, it is a single base station transmission mode, and when the DM-RS port indication field indicates When ports 1 and 2 are set, the transmission mode is diversity. When the number of enabled codewords is less than a certain predefined value, it is a single base station transmission. When the number of enabled codewords is greater than a certain value and a defined value, it is a diversity transmission mode.
- Step 904 The terminal device A determines the first resource set and enables at least one of the N codewords according to the fourth information, or the terminal device A determines the first resource set and the second resource according to the fourth information. Set and enable at least one of the N codewords.
- the terminal device A after receiving the fourth information, the terminal device A also needs to determine the transmission mode of the N codewords.
- the manner in which the terminal device A determines the foregoing content and the manner in which the base station A instructs the foregoing content in step 903 are reciprocal processes, and details are not described herein again.
- Step 905 The base station A indicates the enabled at least one resource set, and the terminal device determines the enabled at least one resource set.
- the base station A may indicate at least one resource set enabled through DCI. Specific instructions are not limited here.
- Step 906 The base station A sends the enabled codeword, and the terminal device A receives the enabled codeword.
- Step 906 is the same as step 407, and details are not described herein again.
- the terminal device A's behavior of receiving the enabled codewords is different for the diversity transmission mode and the NC-JT transmission mode. Specifically, for the diversity transmission mode, terminal device A combines codewords A from different base stations and obtains information bits, and feeds back a hybrid automatic repeat request (HARQ) information to notify Whether base station A receives the codeword correctly.
- HARQ hybrid automatic repeat request
- terminal device A does not combine codewords from different base stations, but obtains information bits from the codewords received by each base station, and feeds HARQ information to each base station.
- the methods provided in the embodiments of the present application are introduced from the perspectives of network equipment, terminal equipment, and interaction between the network equipment and the terminal equipment.
- the network device and the terminal device may include a hardware structure and / or a software module, and implement the foregoing functions in the form of a hardware structure, a software module, or a hardware structure and a software module. Whether one of the above functions is executed by a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application of the technical solution and design constraints.
- FIG. 10 is a schematic structural diagram of a communication device 1000.
- the communication device 1000 may be a terminal device and can implement the functions of the terminal device in the method provided in the embodiment of the present application; the communication device 1000 may also be a device capable of supporting the terminal device to implement the functions of the terminal device in the method provided in the embodiment of the present application.
- the communication device 1000 may be a hardware structure, a software module, or a hardware structure plus a software module.
- the communication device 1000 may be implemented by a chip system. In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices.
- the communication device 1000 may include a processing module 1001 and a communication module 1002.
- the processing module 1001 may be used to execute steps 403 and 405 in the embodiment shown in FIG. 4, or to execute step 803 in the embodiment shown in FIG. 8, or used to execute the embodiment shown in FIG. 9. Step 904, and / or other processes for supporting the techniques described herein.
- the communication module 1002 is used for communication between the communication device 1000 and other modules, and may be a circuit, a device, an interface, a bus, a software module, a transceiver, or any other device that can implement communication.
- the communication module 1002 may be used to perform steps 402, 404, 406, and 407 in the embodiment shown in FIG. 4, or to perform steps 802, 804 to 806 in the embodiment shown in FIG. 8, Or for performing steps 902 to 903 and steps 905 to 906 in the embodiment shown in FIG. 9 and / or other processes for supporting the technology described herein.
- FIG. 11 is a schematic structural diagram of a communication device 1100.
- the communication device 1100 may be a network device that can implement the functions of the network device in the method provided in the embodiment of the present application; the communication device 1100 may also be a device that can support a terminal device to implement the functions of the network device in the method provided in the embodiment of the application .
- the communication device 1100 may be a hardware structure, a software module, or a hardware structure plus a software module.
- the communication device 1100 may be implemented by a chip system. In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices.
- the communication device 1100 may include a processing module 1101 and a communication module 1102.
- the processing module 1101 may be used to perform step 401 in the embodiment shown in FIG. 4, or to perform step 801 in the embodiment shown in FIG. 8, or to perform step 901 in the embodiment shown in FIG. 9. , And / or other processes used to support the techniques described herein.
- the communication module 1102 is used for communication between the communication device 1100 and other modules, and may be a circuit, a device, an interface, a bus, a software module, a transceiver, or any other device that can implement communication.
- the communication module 1102 may be used to perform steps 402, 404, 406, and 407 in the embodiment shown in FIG. 4, or to perform steps 802, 804 to 806 in the embodiment shown in FIG. 8, Or for performing steps 902 to 903 and steps 905 to 906 in the embodiment shown in FIG. 9 and / or other processes for supporting the technology described herein.
- the division of the modules in the embodiments of the present application is schematic and is only a logical function division. In actual implementation, there may be another division manner.
- the functional modules in the embodiments of the present application may be integrated into one process. In the device, it can also exist separately physically, or two or more modules can be integrated into one module.
- the above integrated modules may be implemented in the form of hardware or software functional modules.
- a communication device 1200 may be a terminal device in the embodiment shown in FIG. 4, FIG. 8, or FIG. 9, and can implement the method provided in the embodiment of the present application.
- the functions of the terminal equipment; the communication device 1200 may also be a device capable of supporting the terminal equipment to realize the functions of the terminal equipment in the method provided in the embodiment of the present application.
- the communication device 1200 may be a chip system. In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices.
- the communication device 1200 includes at least one processor 1220, which is used to implement or support the communication device 1200 to implement the functions of the terminal device in the method provided in the embodiment of the present application.
- the processor 1220 may determine the first resource set and the second resource set according to the first information and the second information.
- the communication device 1200 may further include at least one memory 1230 for storing program instructions and / or data.
- the memory 1230 and the processor 1220 are coupled.
- the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, and may be electrical, mechanical or other forms for information exchange between devices, units or modules.
- the processor 1220 may cooperate with the memory 1230.
- the processor 1220 may execute program instructions stored in the memory 1230. At least one of the at least one memory may be included in a processor.
- the communication device 1200 may further include a communication interface 1210 for communicating with other devices through a transmission medium, so that the devices used in the communication device 1200 can communicate with other devices.
- the other device may be a network device.
- the processor 1220 can use the communication interface 1210 to send and receive data.
- the embodiments of the present application are not limited to the specific connection medium between the communication interface 1210, the processor 1220, and the memory 1230.
- the memory 1230, the processor 1220, and the communication interface 1210 are connected by a bus 1240 in FIG. 12.
- the bus is indicated by a thick line in FIG. 12.
- the connection between other components is only a schematic description. It is not limited.
- the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is used in FIG. 12, but it does not mean that there is only one bus or one type of bus.
- the processor 1220 may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, and a discrete hardware component, which may be implemented Alternatively, each method, step, and logic block diagram disclosed in the embodiments of the present application is executed.
- a general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in combination with the embodiments of the present application may be directly implemented by a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
- the memory 1230 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., and may also be a volatile memory (volatile memory). For example, random-access memory (RAM).
- the memory is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.
- the memory in the embodiment of the present application may also be a circuit or any other device capable of implementing a storage function, for storing program instructions and / or data.
- a communication device 1300 provided by an embodiment of the present application is provided.
- the communication device 1300 may be a network device and can implement the functions of the network device in the method provided by the embodiment of the application.
- the communication device 1300 may also be capable of supporting core A device for a network element to implement the functions of a network device in the method provided in the embodiments of the present application.
- the communication device 1300 may be a chip system.
- the chip system may be composed of a chip, and may also include a chip and other discrete devices.
- the communication device 1300 includes at least one processor 1320, which is used to implement or support the communication device 1300 to implement the functions of the core network element in the method provided in the embodiment of the present application.
- the processor 1320 may determine the first resource set and the second resource set.
- the communication device 1300 may further include at least one memory 1330 for storing program instructions and / or data.
- the memory 1330 and the processor 1320 are coupled.
- the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, and may be electrical, mechanical or other forms for information exchange between devices, units or modules.
- the processor 1320 may cooperate with the memory 1330.
- the processor 1320 may execute program instructions stored in the memory 1330. At least one of the at least one memory may be included in a processor.
- the communication device 1300 may further include a communication interface 1310 for communicating with other devices through a transmission medium, so that the devices used in the device 1300 may communicate with other devices.
- the other device may be a terminal device.
- the processor 1320 may use the communication interface 1310 to send and receive data.
- the embodiments of the present application are not limited to the specific connection medium between the communication interface 1310, the processor 1320, and the memory 1330.
- the memory 1330, the processor 1320, and the communication interface 1310 are connected by a bus 1340 in FIG. 13.
- the bus is indicated by a thick line in FIG. 13.
- the connection modes between other components are only schematically illustrated. It is not limited.
- the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is used in FIG. 13, but it does not mean that there is only one bus or one type of bus.
- the processor 1320 may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, and a discrete hardware component, which may be implemented Alternatively, each method, step, and logic block diagram disclosed in the embodiments of the present application is executed.
- a general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in combination with the embodiments of the present application may be directly implemented by a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
- the memory 1330 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory).
- a non-volatile memory such as a hard disk drive (HDD) or a solid-state drive (SSD), etc.
- a volatile memory volatile memory
- RAM random-access memory
- the memory is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.
- the memory in the embodiment of the present application may also be a circuit or any other device capable of implementing a storage function, for storing program instructions and / or data.
- An embodiment of the present application further provides a computer-readable storage medium including instructions that, when run on a computer, cause the computer to execute the method performed by the terminal device in any one of the embodiments of FIG. 4, FIG. 8, and FIG. 9.
- An embodiment of the present application further provides a computer-readable storage medium including instructions that, when run on a computer, cause the computer to execute the method performed by the network device in any one of the embodiments of FIG. 4, FIG. 8, and FIG. 9.
- An embodiment of the present application further provides a computer program product including instructions that, when run on a computer, causes the computer to execute the method performed by the terminal device described in any one of the embodiments of FIG. 4, FIG. 8, and FIG. 9.
- An embodiment of the present application further provides a computer program product including instructions that, when run on a computer, causes the computer to execute the method performed by the network device described in any one of the embodiments of FIG. 4, FIG. 8, and FIG. 9.
- the chip system includes a processor, and may further include a memory, for implementing functions of the terminal device in the foregoing method.
- the chip system can be composed of chips, and can also include chips and other discrete devices.
- the chip system includes a processor, and may further include a memory, for implementing functions of the network device in the foregoing method.
- the chip system can be composed of chips, and can also include chips and other discrete devices.
- An embodiment of the present application provides a system, where the system includes the foregoing terminal device and the network device.
- the methods provided in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
- software When implemented in software, it may be implemented in whole or in part in the form of a computer program product.
- the computer program product includes one or more computer instructions.
- the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions according to the embodiments of the present invention are wholly or partially generated.
- the computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user equipment, or another programmable device.
- the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server, or data center Transmission by cable (such as coaxial cable, optical fiber, digital subscriber line (DSL) or wireless (such as infrared, wireless, microwave, etc.) to another website site, computer, server, or data center.
- a computer-readable storage medium may be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media integrations.
- the available media can be magnetic media (eg, floppy disks, hard disks, Magnetic tape), optical media (for example, digital video disc (DVD) for short), or semiconductor media (for example, SSD).
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Abstract
一种资源配置方法及通信装置,该方法包括:网络设备确定不承载N个码字中的任意一个码字包括的信息比特的第一资源集合及不承载该N个码字中的部分码字包括的信息比特的第二资源集合后,向终端设备发送用于指示该第一资源集合的配置信息的第一信息及用于指示该第二资源集合的配置信息的第二信息,终端设备接收该第一信息及该第二信息,确定该第一资源集合及该第二资源集合。在上述技术方案中,通过配置N个码字共用的速率匹配资源(第一资源集合)和N个码字中部分码字专用的速率匹配资源(第二资源集合),这样,可以减少重复为将N个码字指示相同的速率匹配资源,从而可以减少用于指示速率匹配资源的指示字段的比特数,以节省DCI的开销。
Description
相关申请的交叉引用
本申请要求在2018年09月19日提交中国专利局、申请号为201811094962.2、申请名称为“一种资源配置方法及通信装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及通信技术领域,尤其涉及一种资源配置方法及通信装置。
多输入多输出(multiple-input multiple-output,MIMO)技术由于其能够提高通信质量的特点,被广泛应用在无线通信系统中。MIMO技术的主要思想是,通过在发送端设置的多个发射天线和在接收端设置的多个接收天线,来抑制码字传输过程中的信道衰落,从而可以提高通信质量。
在下行传输中,基站(base station,BS)向终端设备发送的下行数据通常以码字(codeword,CW)的为单位进行信息比特的编码调制,传输的码字需要进行速率匹配以使得信息比特可以绕开某些特定的时频资源,也就是不在某些特定的时频资源上映射数据,这些特定的时频资源通常用于发送其他信息,基站通常需要通过信令通知这些特定的时频资源。例如,可以通知0功率信道状态信息参考信号(zero-power channel state information reference signal,ZP CSI-RS)的资源,从而使得传输的码字针对ZP CSI-RS进行速率匹配以不在相应的时频资源上映射信息比特。
因此,在现有技术中,基站在向终端设备发送下行数据之前,首先会为下行数据配置速率匹配资源,例如,资源集合1~资源集合3,速率匹配资源可以为周期类型或者非周期类型的资源。然后,当速率匹配资源配置为非周期类型时,基站会通过下行控制信息(downlink control information,DCI)从配置的速率匹配资源中选择部分或者全部资源向终端设备指示此次传输会触发的资源,即基站不会在该资源上映射下行数据的信息比特。例如,通过DCI中的字段指示触发速率匹配资源,该字段中的某一个或者多个状态值可以用于触发部分速率匹配资源。终端设备在接收该DCI后,通过确定该字段指示的状态值,确定该DCI调度的下行数据对应的速率匹配资源。
在下一代无线通信系统中,例如,第5代移动通信(the 5th generation,5G)系统中,存在多站点协作传输(coordinated multiple points transmission/reception,CoMP)场景。在COMP场景下,多个基站可以同时向同一个终端设备发送下行数据,该下行数据包括多个码字,每个基站可以为该终端设备发送不同的码字,每个码字对应不同的调制编码方案,例如,基站A向终端设备发送码字0,以及基站B向终端设备发送码字1。在这种情况下,基站发送用于调度包含多个码字的下行数据的DCI时,该DCI中需要指示码字0对应的速率匹配资源和码字1对应的速率匹配资源,因此,会导致DCI中用于指示速率匹配资源的字段的比特数增加,增加DCI的开销。
发明内容
本申请实施例提供一种资源配置方法及通信装置,用以降低DCI的开销。
第一方面,本申请实施例提供一种资源配置方法,该方法包括:网络设备首先确定不承载N个码字中的任意一个码字包括的信息比特的第一资源集合及不承载该N个码字中的部分码字包括的信息比特的第二资源集合,N为大于或等于2的整数,然后,网络设备向终端设备发送用于指示该第一资源集合的配置信息的第一信息及用于指示该第二资源集合的配置信息的第二信息,终端设备接收该第一信息及该第二信息,确定该第一资源集合及该第二资源集合。
其中,该第一资源集合不承载N个码字中的任意一个码字包括的信息比特具体包括:当用于承载该N个码字中任意一个码字的资源与该第一资源集合中的任意一个资源元素RE重叠时,在该重叠的RE上不承载该N个码字中的任意一个码字包括的信息比特;该第二资源集合不承载该N个码字中的部分码字包括的信息比特具体包括:当用于承载该N个码字中的部分码字的资源与该第二资源集合中的任意一个RE重叠时,在该重叠的RE上不承载该N个码字中的部分码字包括的信息比特。
在上述技术方案中,通过配置N个码字共用的速率匹配资源(第一资源集合)和N个码字中部分码字专用的速率匹配资源(第二资源集合),这样,当进行数据传输时,可以减少重复为将N个码字指示相同的速率匹配资源,从而可以减少在CoMP传输时用于指示速率匹配资源的指示字段的比特数,以节省DCI的开销。
在一种可能的设计中,该方法还包括:网络设备向终端设备发送用于指示该第一资源集合不承载该N个码字中的任意一个码字包括的信息比特和/或该第二资源集合不承载该N个码字中的部分码字包括的信息比特的第三信息,终端设备则接收该第三信息。
在上述技术方案中,网络设备可以通过第三信息向终端设备指示第一资源集合和第二资源集合的用途,也就是说指示该第一资源集合和该第二资源集合中,哪一个资源集合是N个码字共用的资源集合,哪一个资源集合是部分码字专用的资源集合。
在一种可能的设计中,网络设备可以包括但不限于如下两种方式发送第三信息:
第一种方式:
网络设备发送下行控制信息DCI,终端设备接收该DCI,该DCI中的第一字段用于指示该第三信息;其中,该第一字段的状态值包括以下三种状态值中的至少一种:
第一状态值用于指示该第一资源集合不承载该N个码字中的任意一个码字包括的信息比特;或
第二状态值用于指示该第二资源集合不承载该N个码字中的部分码字包括的信息比特;或
第三状态值用于指示该第一资源集合不承载该N个码字中的任意一个码字包括的信息比特以及该第二资源集合不承载该N个码字中的部分码字包括的信息比特。
第二种方式:
网络设备发送下行控制信息DCI,终端设备接收该DCI,该DCI中的第二字段和第三字段用于指示该第三信息;其中,该第二字段用于指示该第一资源集合不承载该N个码字中的任意一个码字包括的信息比特;
该第三字段用于指示该第二资源集合不承载该N个码字中的部分码字包括的信息比特,或者,该第三字段用于指示该第一资源集合不承载该N个码字中的任意一个码字包括的信 息比特以及该第二资源集合不承载该N个码字中的部分码字包括的信息比特。
在上述技术方案中,网络设备可以采用多种方式向终端设备指示该第三信息,可以增加网络设备的灵活性。
在一种可能的设计中,该第一字段的状态值还用于指示从该第一资源集合和该第二资源集合中启用至少一个资源集合;或,该第二字段和/或该第三字段还用于指示从该第一资源集合和该第二资源集合中启用至少一个资源集合。
在上述技术方案中,还可以通过DCI中用于指示第一资源集合和第二资源集合的用途的字段指示进行数据传输时启用的资源集合,从而一个字段可以指示不同的信息,进一步降低了DCI的开销。
在一种可能的设计中,该方法还包括:网络设备向终端设备发送用于指示该第一资源集合以及用于指示启用该N个码字中的至少一个码字的第四信息;或,网络设备向终端设备发送用于指示该第一资源集合和该第二资源集合以及用于指示启用该N个码字中的至少一个码字的第四信息,终端设备接收该第四信息。
在上述技术方案中,当网络设备向终端设备指示第一资源集合和第二资源集合后,还可以通过指示启用的资源集合和启用的码字的方式,向终端设备指示第一资源集合和第二资源集合的用途,可以增加网络设备的灵活性。
在一种可能的设计中,第四信息可以包括但不限于如下四种指示内容:
第一种,当所述第四信息用于指示所述第一资源集合以及用于指示启用所述N个码字中的一个码字时,所述第四字段指示的资源集合不承载所述被启用的一个码字包括的信息比特;或
第二种,当所述第四信息用于指示所述第一资源集合以及用于指示启用所述N个码字中的多个码字时,所述第四信息指示的资源集合不承载所述被启用的多个码字中的任意一个码字包括的信息比特;或
第三种,当所述第四信息用于指示所述第一资源集合和所述第二资源集合以及用于指示启用所述N个码字中的一个码字时,所述第四信息指示的所述第一资源集合和所述第二资源集合不承载所述被启用的一个码字包括的信息比特;或
第四种,当所述第四信息用于指示所述第一资源集合和所述第二资源集合以及用于指示启用所述N个码字中的多个码字时,所述第四信息指示的第一资源集合不承载所述被启用的多个码字中的任意一个码字包括的信息比特,且所述第四信息指示的第二资源集合不承载所述被启用的多个码字中的部分码字包括的信息比特,其中,第四信息中指示的第一资源集合和第二资源集合根据预定义的规则确定。
在上述技术方案中,网络设备可以通过第四信息中指示的不同的资源集合和启用的不同的码字,来指示第一资源集合和第二资源集合的用途,可以增加网络设备的灵活性。
在一种可能的设计中,网络设备可以包括但不限于如下两种方式发送第四信息:
第一种方式:
网络设备发送下行控制信息DCI,终端设备接收该DCI,该DCI中的第四字段用于指示该第四信息;或,该DCI中的第五字段指示该第一资源集合,该DCI中的第六字段用于指示该第二资源集合。
第二种方式:
网络设备发送第一下行控制信息DCI,终端设备接收该第一DCI,该第一DCI用于指 示该第一资源集合以及用于指示启用该N个码字中的第一码字;
网络设备发送第二下行控制信息DCI,终端设备接收该第二DCI,该第二DCI用于指示该第二资源集合以及用于指示启用该N个码字中的第二码字。
第三种方式:
网络设备发送第一下行控制信息DCI,终端设备接收该第一DCI,该第一DCI用于指示该第一资源集合和该第二资源集合,以及,该第一DCI用于指示启用该N个码字中的第一码字;
网络设备发送第二下行控制信息DCI,终端设备接收该第二DCI,该第二DCI用于指示第三资源集合中除该第二资源集合外的至少一个资源集合以及用于指示启用该N个码字中的第二码字,该第二资源集合为该第三资源集合中的一个资源集合。
在上述技术方案中,网络设备可以采用多种方式向终端设备指示该第四信息,可以增加网络设备的灵活性。
在一种可能的设计中,该第一信息和该第二信息为无线资源控制RRC信令或者媒体接入控制控制元素MAC CE信令。
在上述技术方案中,网络设备可以通过RRC信令或者MAC CE信令来指示该第一信息和该第二信息,可以增加网络设备的灵活性。
在一种可能的设计中,该第四信息还用于指示该N个码字的第一传输模式或第二传输模式,在该第一传输模式中,该N个码字中的信息比特相同,在该第二传输模式中,该N个码字中的信息比特不同。当该第四信息指示启用码字数量大于1,且仅启用第一资源集合时,指示该传输模式为第一传输模式;当该第四信息指示启用码字数量大于1,且同时启用第一资源集合和第二资源集合时,指示该传输模式为第二传输模式。
在上述技术方案中,还可以通过DCI中用于指示第一资源集合和第二资源集合的用途的字段指示进行数据传输时的传输模式,从而一个字段可以指示不同的信息,进一步降低了DCI的开销。
在一种可能的设计中,该第一资源集合和该第二资源集合中的资源为零功率信道状态信息参考信号ZP CSI-RS。
第二方面,本申请实施例提供一种通信装置,所述通信装置包括处理器,用于实现上述第一方面中由网络设备执行的方法。所述通信装置还可以包括存储器,用于存储程序指令和数据。所述存储器与所述处理器耦合,所述处理器可以调用并执行所述存储器中存储的程序指令,用于实现上述第二方面描述的方法中的任意一种方法中。所述通信装置还可以包括通信接口,所述通信接口用于该通信装置与其它设备进行通信。示例性地,该其它设备为网络设备。
在一种可能的设计中,所述通信装置包括处理器和通信接口,其中:
所述处理器,用于确定第一资源集合及第二资源集合,所述第一资源集合不承载N个码字中的任意一个码字包括的信息比特,所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特,N为大于或等于2的整数;
其中,所述第一资源集合不承载N个码字中的任意一个码字包括的信息比特具体包括:当用于承载所述N个码字中任意一个码字的资源与所述第一资源集合中的任意一个资源元素RE重叠时,在所述重叠的RE上不承载所述N个码字中的任意一个码字包括的信息比特;所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特具体包括:当用 于承载所述N个码字中的部分码字的资源与所述第二资源集合中的任意一个RE重叠时,在所述重叠的RE上不承载所述N个码字中的部分码字包括的信息比特;
所述通信接口,用于发送第一信息及第二信息,所述第一信息用于指示所述第一资源集合的配置信息,所述第二信息用于指示所述第二资源集合的配置信息。
在一种可能的设计中,所述通信接口还用于:
发送第三信息,所述第三信息用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特和/或所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
在一种可能的设计中,所述通信接口用于:
发送下行控制信息DCI,所述DCI中的第一字段用于指示所述第三信息;
其中,所述第一字段的状态值包括以下三种状态值中的至少一种:
第一状态值用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特;或
第二状态值用于指示所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特;或
第三状态值用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特以及所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
在一种可能的设计中,所述通信接口用于:
发送下行控制信息DCI,所述DCI中的第二字段和第三字段用于指示所述第三信息;
其中,所述第二字段用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特;
所述第三字段用于指示所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特,或者,所述第三字段用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特以及所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
在一种可能的设计中,所述第一字段的状态值还用于指示从所述第一资源集合和所述第二资源集合中启用至少一个资源集合;或
所述第二字段和/或所述第三字段还用于指示从所述第一资源集合和所述第二资源集合中启用至少一个资源集合。
在一种可能的设计中,所述通信接口还用于:
发送第四信息,所述第四信息用于指示所述第一资源集合,以及,所述第四信息还用于指示启用所述N个码字中的至少一个码字;或
所述第四信息用于指示所述第一资源集合和所述第二资源集合,以及,所述第四信息还用于指示启用所述N个码字中的至少一个码字。
在一种可能的设计中,当所述第四信息用于指示所述第一资源集合以及用于指示启用所述N个码字中的一个码字时,所述第四字段指示的资源集合不承载所述被启用的一个码字包括的信息比特;或
当所述第四信息用于指示所述第一资源集合以及用于指示启用所述N个码字中的多个码字时,所述第四信息指示的资源集合不承载所述被启用的多个码字中的任意一个码字包括的信息比特;或
当所述第四信息用于指示所述第一资源集合和所述第二资源集合以及用于指示启用所述N个码字中的一个码字时,所述第四信息指示的所述第一资源集合和所述第二资源集合不承载所述被启用的一个码字包括的信息比特;或
当所述第四信息用于指示所述第一资源集合和所述第二资源集合以及用于指示启用所述N个码字中的多个码字时,所述第四信息指示的第一资源集合不承载所述被启用的多个码字中的任意一个码字包括的信息比特,且所述第四信息指示的第二资源集合不承载所述被启用的多个码字中的部分码字包括的信息比特,其中,第四信息中指示的第一资源集合和第二资源集合根据预定义的规则确定。
在一种可能的设计中,所述通信接口用于:
发送下行控制信息DCI;
所述DCI中的第四字段用于指示所述第四信息;或
所述DCI中的第五字段指示所述第一资源集合,所述DCI中的第六字段用于指示所述第二资源集合。
在一种可能的设计中,所述通信接口用于:
发送第一下行控制信息DCI,所述第一DCI用于指示所述第一资源集合以及用于指示启用所述N个码字中的第一码字;
发送第二下行控制信息DCI,所述第二DCI用于指示所述第二资源集合以及用于指示启用所述N个码字中的第二码字。
在一种可能的设计中,所述通信接口用于:
发送第一下行控制信息DCI,所述第一DCI用于指示所述第一资源集合和所述第二资源集合,以及,所述第一DCI用于指示启用所述N个码字中的第一码字;
发送第二下行控制信息DCI,所述第二DCI用于指示第三资源集合中除所述第二资源集合外的至少一个资源集合以及用于指示启用所述N个码字中的第二码字,所述第二资源集合为所述第三资源集合中的一个资源集合。
在一种可能的设计中,所述第一信息和所述第二信息为无线资源控制RRC信令或者媒体接入控制控制元素MAC CE信令。
在一种可能的设计中,所述第四信息还用于指示所述N个码字的传输模式,所述传输模式包括第一传输模式和第二传输模式,其中,在所述第一传输模式中,所述N个码字中的信息比特相同,在所述第二传输模式中,所述N个码字中的信息比特不同;
当所述第四信息指示启用码字数量大于1,且仅启用第一资源集合时,所述传输模式为第一传输模式;
当所述第四信息指示启用码字数量大于1,且同时启用第一资源集合和第二资源集合时,所述传输模式为第二传输模式。
在一种可能的设计中,所述第一资源集合和所述第二资源集合中的资源为零功率信道状态信息参考信号ZP CSI-RS。
第三方面,本申请实施例提供一种通信装置,所述通信装置包括处理器,用于实现上述第一方面中由终端设备执行的方法。所述通信装置还可以包括存储器,用于存储程序指令和数据。所述存储器与所述处理器耦合,所述处理器可以调用并执行所述存储器中存储的程序指令,用于实现上述第二方面描述的方法中的任意一种方法中。所述通信装置还可以包括通信接口,所述通信接口用于该通信装置与其它设备进行通信。示例性地,该其它 设备为网络设备。
在一种可能的设计中,所述通信装置包括处理器和通信接口,其中:
所述通信接口,用于接收第一信息及第二信息,所述第一信息用于指示第一资源集合,所述第二信息用于指示第二资源集合,所述第一资源集合不承载N个码字中的任意一个码字包括的信息比特,所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特,N为大于或等于2的整数;
其中,所述第一资源集合不承载N个码字中的任意一个码字包括的信息比特具体包括:当用于承载所述N个码字中任意一个码字的资源与所述第一资源集合中的任意一个资源元素RE重叠时,在所述重叠的RE上不承载所述N个码字中的任意一个码字包括的信息比特;所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特具体包括:当用于承载所述N个码字中的部分码字的资源与所述第二资源集合中的任意一个资源RE重叠时,在所述重叠的RE上不承载所述N个码字中的部分码字包括的信息比特;
所述处理器,用于确定所述第一资源集合及所述第二资源集合。
在一种可能的设计中,所述通信接口用于:
接收第三信息,所述第三信息用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特和/或所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
在一种可能的设计中,所述通信接口用于:
接收下行控制信息DCI,所述DCI中的第一字段用于指示所述第三信息;
其中,所述第一字段的状态值包括以下三种状态值中的至少一种:
第一状态值用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特;或
第二状态值用于指示所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特;或
第三状态值用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特以及所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
在一种可能的设计中,所述通信接口用于:
接收下行控制信息DCI,所述DCI中的第二字段和第三字段用于指示所述第三信息;
其中,所述第二字段用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特;
所述第三字段用于指示所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特,或者,所述第三字段用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特以及所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
在一种可能的设计中,所述第一字段的状态值还用于指示从所述第一资源集合和所述第二资源集合中启用至少一个资源集合;或
所述第二字段和/或所述第三字段还用于指示从所述第一资源集合和所述第二资源集合中启用至少一个资源集合。
在一种可能的设计中,所述通信接口还用于:
接收第四信息,所述第四信息用于指示所述第一资源集合,以及,所述第四信息用于 指示启用所述N个码字中的至少一个码字;或
所述第四信息用于指示所述第一资源集合和所述第二资源集合,以及,所述第四信息还用于指示启用所述N个码字中的至少一个码字。
在一种可能的设计中,当所述第四信息用于指示所述第一资源集合以及用于指示启用所述N个码字中的一个码字时,所述第四字段指示的资源集合不承载所述被启用的一个码字包括的信息比特;或
当所述第四信息用于指示所述第一资源集合以及用于指示启用所述N个码字中的多个码字时,所述第四信息指示的资源集合不承载所述被启用的多个码字中的任意一个码字包括的信息比特;或
当所述第四信息用于指示所述第一资源集合和所述第二资源集合以及用于指示启用所述N个码字中的一个码字时,所述第四信息指示的所述第一资源集合和所述第二资源集合不承载所述被启用的一个码字包括的信息比特;或
当所述第四信息用于指示所述第一资源集合和所述第二资源集合以及用于指示启用所述N个码字中的多个码字时,所述第四信息指示的第一资源集合不承载所述被启用的多个码字中的任意一个码字包括的信息比特,且所述第四信息指示的第二资源集合不承载所述被启用的多个码字中的部分码字包括的信息比特,其中,第四信息中指示的第一资源集合和第二资源集合根据预定义的规则确定。
在一种可能的设计中,所述通信接口用于:
接收下行控制信息DCI;
所述DCI中的第四字段用于指示所述第四信息;或
所述DCI中的第五字段指示所述第一资源集合,所述DCI中的第六字段用于指示所述第二资源集合。
在一种可能的设计中,所述通信接口用于:
接收第一下行控制信息DCI,所述第一DCI用于指示所述第一资源集合以及用于指示启用所述N个码字中的第一码字;
接收第二下行控制信息DCI,所述第二DCI用于指示所述第二资源集合以及用于指示启用所述N个码字中的第二码字;
在一种可能的设计中,所述通信接口用于:
接收第一下行控制信息DCI,所述第一DCI用于指示所述第一资源集合和所述第二资源集合,以及,所述第一DCI用于指示启用所述N个码字中的第一码字;
接收第二下行控制信息DCI,所述第二DCI用于指示第三资源集合中除所述第二资源集合外的至少一个资源集合以及用于指示启用所述N个码字中的第二码字,所述第二资源集合为所述第三资源集合中的一个资源集合。
在一种可能的设计中,所述第一信息和所述第二信息为无线资源控制RRC信令或者媒体接入控制控制元素MAC CE信令。
在一种可能的设计中,所述第四信息还用于指示所述N个码字的传输模式,所述传输模式包括第一传输模式和第二传输模式,其中,在所述第一传输模式中,所述N个码字中的信息比特相同,在所述第二传输模式中,所述N个码字中的信息比特不同;
当所述第四信息指示启用码字数量大于1,且仅启用第一资源集合时,所述传输模式为第一传输模式;
当所述第四信息指示启用码字数量大于1,且同时启用第一资源集合和第二资源集合时,所述传输模式为第二传输模式。
在一种可能的设计中,所述第一资源集合和所述第二资源集合中的资源为零功率信道状态信息参考信号ZP CSI-RS。
第四方面,本申请实施例提供一种通信装置,该通信装置可以是网络设备,也可以是网络设备中的装置,该通信装置可以包括处理模块和通信模块,这些模块可以执行上述第一方面任一种设计示例中的网络设备所执行的相应功能,具体的:
所述处理模块,用于确定第一资源集合及第二资源集合,所述第一资源集合不承载N个码字中的任意一个码字包括的信息比特,所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特,N为大于或等于2的整数;
其中,所述第一资源集合不承载N个码字中的任意一个码字包括的信息比特具体包括:当用于承载所述N个码字中任意一个码字的资源与所述第一资源集合中的任意一个资源元素RE重叠时,在所述重叠的RE上不承载所述N个码字中的任意一个码字包括的信息比特;所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特具体包括:当用于承载所述N个码字中的部分码字的资源与所述第二资源集合中的任意一个RE重叠时,在所述重叠的RE上不承载所述N个码字中的部分码字包括的信息比特;
所述通信模块,用于发送第一信息及第二信息,所述第一信息用于指示所述第一资源集合的配置信息,所述第二信息用于指示所述第二资源集合的配置信息。
在一种可能的设计中,所述通信模块还用于:
发送第三信息,所述第三信息用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特和/或所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
在一种可能的设计中,所述通信模块用于:
发送下行控制信息DCI,所述DCI中的第一字段用于指示所述第三信息;
其中,所述第一字段的状态值包括以下三种状态值中的至少一种:
第一状态值用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特;或
第二状态值用于指示所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特;或
第三状态值用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特以及所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
在一种可能的设计中,所述通信模块用于:
发送下行控制信息DCI,所述DCI中的第二字段和第三字段用于指示所述第三信息;
其中,所述第二字段用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特;
所述第三字段用于指示所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特,或者,所述第三字段用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特以及所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
在一种可能的设计中,所述第一字段的状态值还用于指示从所述第一资源集合和所述 第二资源集合中启用至少一个资源集合;或
所述第二字段和/或所述第三字段还用于指示从所述第一资源集合和所述第二资源集合中启用至少一个资源集合。
在一种可能的设计中,所述通信模块还用于:
发送第四信息,所述第四信息用于指示所述第一资源集合,以及,所述第四信息还用于指示启用所述N个码字中的至少一个码字;或
所述第四信息用于指示所述第一资源集合和所述第二资源集合,以及,所述第四信息还用于指示启用所述N个码字中的至少一个码字。
在一种可能的设计中,当所述第四信息用于指示所述第一资源集合以及用于指示启用所述N个码字中的一个码字时,所述第四字段指示的资源集合不承载所述被启用的一个码字包括的信息比特;或
当所述第四信息用于指示所述第一资源集合以及用于指示启用所述N个码字中的多个码字时,所述第四信息指示的资源集合不承载所述被启用的多个码字中的任意一个码字包括的信息比特;或
当所述第四信息用于指示所述第一资源集合和所述第二资源集合以及用于指示启用所述N个码字中的一个码字时,所述第四信息指示的所述第一资源集合和所述第二资源集合不承载所述被启用的一个码字包括的信息比特;或
当所述第四信息用于指示所述第一资源集合和所述第二资源集合以及用于指示启用所述N个码字中的多个码字时,所述第四信息指示的第一资源集合不承载所述被启用的多个码字中的任意一个码字包括的信息比特,且所述第四信息指示的第二资源集合不承载所述被启用的多个码字中的部分码字包括的信息比特,其中,第四信息中指示的第一资源集合和第二资源集合根据预定义的规则确定。
在一种可能的设计中,所述通信模块用于:
发送下行控制信息DCI;
所述DCI中的第四字段用于指示所述第四信息;或
所述DCI中的第五字段指示所述第一资源集合,所述DCI中的第六字段用于指示所述第二资源集合。
在一种可能的设计中,所述通信模块用于:
发送第一下行控制信息DCI,所述第一DCI用于指示所述第一资源集合以及用于指示启用所述N个码字中的第一码字;
发送第二下行控制信息DCI,所述第二DCI用于指示所述第二资源集合以及用于指示启用所述N个码字中的第二码字。
在一种可能的设计中,所述通信模块用于:
发送第一下行控制信息DCI,所述第一DCI用于指示所述第一资源集合和所述第二资源集合,以及,所述第一DCI用于指示启用所述N个码字中的第一码字;
发送第二下行控制信息DCI,所述第二DCI用于指示第三资源集合中除所述第二资源集合外的至少一个资源集合以及用于指示启用所述N个码字中的第二码字,所述第二资源集合为所述第三资源集合中的一个资源集合。
在一种可能的设计中,所述第一信息和所述第二信息为无线资源控制RRC信令或者媒体接入控制控制元素MAC CE信令。
在一种可能的设计中,所述第四信息还用于指示所述N个码字的传输模式,所述传输模式包括第一传输模式和第二传输模式,其中,在所述第一传输模式中,所述N个码字中的信息比特相同,在所述第二传输模式中,所述N个码字中的信息比特不同;
当所述第四信息指示启用码字数量大于1,且仅启用第一资源集合时,所述传输模式为第一传输模式;
当所述第四信息指示启用码字数量大于1,且同时启用第一资源集合和第二资源集合时,所述传输模式为第二传输模式。
在一种可能的设计中,所述第一资源集合和所述第二资源集合中的资源为零功率信道状态信息参考信号ZP CSI-RS。
第五方面,本申请实施例提供一种通信装置,该通信装置可以是终端设备,也可以是终端设备中的装置,该通信装置可以包括处理模块和通信模块,这些模块可以执行上述第一方面任一种设计示例中的终端设备所执行的相应功能,具体的:
所述通信模块,用于接收第一信息及第二信息,所述第一信息用于指示第一资源集合,所述第二信息用于指示第二资源集合,所述第一资源集合不承载N个码字中的任意一个码字包括的信息比特,所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特,N为大于或等于2的整数;
其中,所述第一资源集合不承载N个码字中的任意一个码字包括的信息比特具体包括:当用于承载所述N个码字中任意一个码字的资源与所述第一资源集合中的任意一个资源元素RE重叠时,在所述重叠的RE上不承载所述N个码字中的任意一个码字包括的信息比特;所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特具体包括:当用于承载所述N个码字中的部分码字的资源与所述第二资源集合中的任意一个资源RE重叠时,在所述重叠的RE上不承载所述N个码字中的部分码字包括的信息比特;
所述处理模块,用于确定所述第一资源集合及所述第二资源集合。
在一种可能的设计中,所述通信模块用于:
接收第三信息,所述第三信息用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特和/或所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
在一种可能的设计中,所述通信模块用于:
接收下行控制信息DCI,所述DCI中的第一字段用于指示所述第三信息;
其中,所述第一字段的状态值包括以下三种状态值中的至少一种:
第一状态值用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特;或
第二状态值用于指示所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特;或
第三状态值用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特以及所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
在一种可能的设计中,所述通信模块用于:
接收下行控制信息DCI,所述DCI中的第二字段和第三字段用于指示所述第三信息;
其中,所述第二字段用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特;
所述第三字段用于指示所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特,或者,所述第三字段用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特以及所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
在一种可能的设计中,所述第一字段的状态值还用于指示从所述第一资源集合和所述第二资源集合中启用至少一个资源集合;或
所述第二字段和/或所述第三字段还用于指示从所述第一资源集合和所述第二资源集合中启用至少一个资源集合。
在一种可能的设计中,所述通信模块还用于:
接收第四信息,所述第四信息用于指示所述第一资源集合,以及,所述第四信息用于指示启用所述N个码字中的至少一个码字;或
所述第四信息用于指示所述第一资源集合和所述第二资源集合,以及,所述第四信息还用于指示启用所述N个码字中的至少一个码字。
在一种可能的设计中,当所述第四信息用于指示所述第一资源集合以及用于指示启用所述N个码字中的一个码字时,所述第四字段指示的资源集合不承载所述被启用的一个码字包括的信息比特;或
当所述第四信息用于指示所述第一资源集合以及用于指示启用所述N个码字中的多个码字时,所述第四信息指示的资源集合不承载所述被启用的多个码字中的任意一个码字包括的信息比特;或
当所述第四信息用于指示所述第一资源集合和所述第二资源集合以及用于指示启用所述N个码字中的一个码字时,所述第四信息指示的所述第一资源集合和所述第二资源集合不承载所述被启用的一个码字包括的信息比特;或
当所述第四信息用于指示所述第一资源集合和所述第二资源集合以及用于指示启用所述N个码字中的多个码字时,所述第四信息指示的第一资源集合不承载所述被启用的多个码字中的任意一个码字包括的信息比特,且所述第四信息指示的第二资源集合不承载所述被启用的多个码字中的部分码字包括的信息比特,其中,第四信息中指示的第一资源集合和第二资源集合根据预定义的规则确定。
在一种可能的设计中,所述通信模块用于:
接收下行控制信息DCI;
所述DCI中的第四字段用于指示所述第四信息;或
所述DCI中的第五字段指示所述第一资源集合,所述DCI中的第六字段用于指示所述第二资源集合。
在一种可能的设计中,所述通信模块用于:
接收第一下行控制信息DCI,所述第一DCI用于指示所述第一资源集合以及用于指示启用所述N个码字中的第一码字;
接收第二下行控制信息DCI,所述第二DCI用于指示所述第二资源集合以及用于指示启用所述N个码字中的第二码字;
在一种可能的设计中,所述通信模块用于:
接收第一下行控制信息DCI,所述第一DCI用于指示所述第一资源集合和所述第二资源集合,以及,所述第一DCI用于指示启用所述N个码字中的第一码字;
接收第二下行控制信息DCI,所述第二DCI用于指示第三资源集合中除所述第二资源集合外的至少一个资源集合以及用于指示启用所述N个码字中的第二码字,所述第二资源集合为所述第三资源集合中的一个资源集合。
在一种可能的设计中,所述第一信息和所述第二信息为无线资源控制RRC信令或者媒体接入控制控制元素MAC CE信令。
在一种可能的设计中,所述第四信息还用于指示所述N个码字的传输模式,所述传输模式包括第一传输模式和第二传输模式,其中,在所述第一传输模式中,所述N个码字中的信息比特相同,在所述第二传输模式中,所述N个码字中的信息比特不同;
当所述第四信息指示启用码字数量大于1,且仅启用第一资源集合时,所述传输模式为第一传输模式;
当所述第四信息指示启用码字数量大于1,且同时启用第一资源集合和第二资源集合时,所述传输模式为第二传输模式。
在一种可能的设计中,所述第一资源集合和所述第二资源集合中的资源为零功率信道状态信息参考信号ZP CSI-RS。
第六方面,本申请实施例中还提供一种计算机可读存储介质,包括指令,当其在计算机上运行时,使得计算机执行第一方面中网络设备执行的方法。
第七方面,本申请实施例中还提供一种计算机可读存储介质,包括指令,当其在计算机上运行时,使得计算机执行第一方面中终端设备执行的方法。
第八方面,本申请实施例中还提供一种计算机程序产品,包括指令,当其在计算机上运行时,使得计算机执行第一方面中网络设备执行的方法。
第九方面,本申请实施例中还提供一种计算机程序产品,包括指令,当其在计算机上运行时,使得计算机执行第一方面中终端设备执行的方法。
第十方面,本申请实施例提供了一种芯片系统,该芯片系统包括处理器,还可以包括存储器,用于实现第一方面中网络设备执行的方法。该芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。
第十一方面,本申请实施例提供了一种芯片系统,该芯片系统包括处理器,还可以包括存储器,用于实现第一方面中终端设备执行的方法。该芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。
第十二方面,本申请实施例提供了一种系统,所述系统包括第二方面所述的通信装置和第三方面所述的通信装置。
第十三方面,本申请实施例提供了一种系统,所述系统包括第四方面所述的通信装置和第五方面所述的通信装置。
上述第二方面至第十三方面及其实现方式的有益效果可以参考对第一方面以及第二方面的方法及其实现方式的有益效果的描述。
图1为本申请实施例提供的一种无线通信系统的架构图;
图2为现有技术中的指示传输码字的速率匹配资源的方法的一种示例的流程图;
图3A为本申请实施例提供的一种CoMP场景的网络架构图;
图3B为本申请实施例提供的另一种CoMP场景的网络架构图;
图3C为本申请实施例提供的另一种CoMP场景的网络架构图;
图4为本申请实施例提供的一种资源配置方法的流程图;
图5A为本申请实施例提供的2个码字均需要与相同的CSI-RS所占用的资源进行速率匹配的一种示例的示意图;
图5B为本申请实施例提供的2个码字均需要与相同的CSI-RS所占用的资源进行速率匹配的另一种示例的示意图;
图6A为本申请实施例提供的2个码字需要与不同的资源进行速率匹配的一种示例的示意图;
图6B为本申请实施例提供的2个码字需要与不同的资源进行速率匹配的另一种示例的示意图;
图7为本申请实施例中通过DCI指示为终端设备A分配的PDSCH资源的频域资源的一种示意图;
图8为本申请实施例提供的另一种资源配置方法的流程图;
图9为本申请实施例提供的另一种资源配置方法的流程图;
图10为本申请实施例中提供的一种通信装置的结构示意图;
图11为本申请实施例中提供的另一种通信装置的结构示意图;
图12为本申请实施例中提供的另一种通信装置的结构示意图;
图13为本申请实施例中提供的另一种通信装置的结构示意图。
为了使本申请实施例的目的、技术方案和优点更加清楚,下面将结合附图对本申请实施例作进一步地详细描述。
以下,对本申请实施例中的部分用语进行解释说明,以便于本领域技术人员理解。
1)终端设备,包括向用户提供语音和/或数据连通性的设备,例如可以包括具有无线连接功能的手持式设备、或连接到无线调制解调器的处理设备。该终端设备可以经无线接入网(radio access network,RAN)与核心网进行通信,与RAN交换语音和/或数据。该终端设备可以包括用户设备(user equipment,UE)、无线终端设备、移动终端设备、订户单元(subscriber unit)、订户站(subscriber station),移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point,AP)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、或用户装备(user device)等。例如,可以包括移动电话(或称为“蜂窝”电话),具有移动终端设备的计算机,便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,智能穿戴式设备等。例如,个人通信业务(personal communication service,PCS)电话、无绳电话、会话发起协议(session initiation protocol,SIP)话机、无线本地环路(wireless local loop,WLL)站、个人数字助理(personal digital assistant,PDA)、等设备。还包括受限设备,例如功耗较低的设备,或存储能力有限的设备,或计算能力有限的设备等。例如包括条码、射频识别(radio frequency identification,RFID)、传感器、全球定位系统(global positioning system,GPS)、激光扫描器等信息传感设备。
作为示例而非限定,在本申请实施例中,该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备,是应用穿戴式技术对日常穿戴进行智能化设计、开发出可 以穿戴的设备的总称,如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上,或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备,更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能,例如:智能手表或智能眼镜等,以及只专注于某一类应用功能,需要和其它设备如智能手机配合使用,如各类进行体征监测的智能手环、智能头盔、智能首饰等。
2)网络设备,例如包括基站(例如,接入点),可以是指接入网中在空口通过一个或多个小区与无线终端设备通信的设备。网络设备可用于将收到的空中帧与网际协议(IP)分组进行相互转换,作为终端设备与接入网的其余部分之间的路由器,其中接入网的其余部分可包括IP网络。网络设备还可协调对空口的属性管理。例如,网络设备可以包括LTE系统或LTE-A中的演进型基站(NodeB或eNB或e-NodeB,evolutional Node B),或者也可以包括第五代移动通信技术(fifth generation,5G)NR系统中的下一代节点B(next generation node B,gNB)或者也可以包括云接入网(cloud radio access network,CloudRAN)系统中的集中式单元(centralized unit,CU)和分布式单元(distributed unit,DU),本申请实施例并不限定。
3)资源元素(resource element,RE),在时域上包括一个OFDM符号,在频域上包括一个子载波。RE是表征资源的最小单位。
4)资源,无线通信系统中的资源通常以物理资源块(physical resource block,PRB)对或者PRB为单位进行描述。在NR系统中,一个PRB对在时域上包括2个时隙(slot),即14个正交频分复用多址(Orthogonal Frequency Division Multiple,OFDM)符号,在频域上包括12个子载波。一个PRB对包括2个相邻的PRB,也就是说,一个PRB在频域上包括12个子载波,在时域上包括1个时隙。PRB是RB经过资源映射后形成的。可以理解的,一个PRB包含的时频域资源可能会因不同的无线通信系统而有所不同,例如,在LTE系统中,一个PRB在时域上包括2个slot的时域资源,在此不对PRB的时域资源及频域资源进行限制。其中,DCI中的时频资源分配字段可以用于指示分配网络资源中的部分时频资源,分配的时频资源用于当前数据传输。
5)速率匹配资源。每个速率匹配资源可以包含一个或多个RB,或者包含一个或多个个RB内一个或多个RE,或者包含一个或多个RE。可以通过高层信令配置一个或多个速率匹配资源。在通过高层信令配置上述一个或多个速率匹配资源时,可以同时指示上述一个或多个速率匹配资源所在时域位置信息,也可以不指示上述一个或多个速率匹配资源所在时域位置信息,时域位置可以为迷你时隙(Mini-Slot)、时隙(slot)、子帧、帧,等。其中,DCI中的速率匹配字段可以用于指示启用部分或者全部通过高层信令配置的速率匹配资源,启用部分资源表示DCI调度的当前数据传输需要与被启用的资源所占的资源元素(resource element,RE)进行速率匹配,也就是通过DCI指示部分资源生效的时域位置。另外,本申请实施例中的技术术语“启用”和“触发”可被互换使用。
6)码字(codeword),表示数据传输的过程中,发送端将原始的信息比特按照预先定义的规则进行调制、编码和加扰之后形成的传输块。基站需要通知最大码字的数量,当最大码字的数量大于1时,在实际下行传输数据中需要进一步指示启用最大码字数量中的部分或者全部码字,从而通知终端设备进行数据解调时基于的解调和译码方式。
7)本申请实施例中的术语“系统”和“网络”可被互换使用。“多个”是指两个或两 个以上,鉴于此,本申请实施例中也可以将“多个”理解为“至少两个”。“至少两个”,可以理解为两个或更多个,例如理解为两个、三个或更多个。“至少一个”,可理解为一个或多个,例如理解为一个、两个或更多个。例如,包括至少一个,是指包括一个、两个或更多个,而且不限制包括的是哪几个,例如,包括A、B和C中的至少一个,那么包括的可以是A、B、C、A和B、A和C、B和C、或A和B和C。同理,对于“至少一种”等描述的理解,也是类似的。“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,字符“/”,如无特殊说明,一般表示前后关联对象是一种“或”的关系。
除非有相反的说明,本申请实施例提及“第一”、“第二”等序数词用于对多个对象进行区分,不用于限定多个对象的顺序、时序、优先级或者重要程度。
如上介绍了本申请实施例涉及的一些概念,下面介绍现有技术中基站指示用于传输码字的速率匹配资源的方法。以图1所示的无线通信系统为例,该无线通信系统中包括两个基站和两个终端设备,两个基站分别为基站A和基站B,两个终端设备分别为终端设备A和终端设备B。基站可以在同一时刻分别与两个终端设备通信,例如,基站A可以同时向终端设备A和终端设备B发送不同的码字,但一个终端设备在同一时刻只与一个基站进行通信,例如,终端设备A在第一时刻只能接收基站A发送的码字,终端设备A在第二时刻只能接收基站B发送的码字。在图1中以虚线表示在第二时刻发送码字。
下面,以基站A向终端设备A指示用于传输码字的速率匹配资源,且以速率匹配资源为ZP CSI-RS为例进行说明。请参考图2,该方法的流程图如下:
步骤201、基站A向终端设备A指示用于速率匹配的ZP CSI-RS资源集合,终端设备A接收该指示信息并获得ZP CSI-RS资源集合的信息。
基站A在向终端设备A发送码字之前,首先需要为该码字配置多个ZP CSI-RS资源集合。例如,基站A为该码字配置了3个ZP CSI-RS资源集合,每个ZP CSI-RS资源集合中可以包括多个ZP CSI-RS资源。以ZP CSI-RS资源集合1为例进行说明,如图2所示,ZP CSI-RS资源集合1中包括4个ZP CSI-RS资源,第一个ZP CSI-RS资源在时域上包括OFDM符号2和OFDM符号3,在频域上包括子载波0和子载波1,第二个ZP CSI-RS资源在时域上包括OFDM符号6和OFDM符号7,在频域上包括子载波0和子载波1,第三个ZP CSI-RS资源在时域上包括OFDM符号2和OFDM符号3,在频域上包括子载波4和子载波5,第三个ZP CSI-RS资源在时域上包括OFDM符号6和OFDM符号7,在频域上包括子载波4和子载波5。ZP CSI-RS资源集合2和ZP CSI-RS资源集合3中包括的ZP CSI-RS资源可以参照ZP CSI-RS资源集合1,在此不再赘述。
然后,基站A通过高层信令,例如,无线资源控制(radio resource control,RRC)信令或者媒体接入控制控制元素(media access control control element,MAC CE)信令将多个ZP CSI-RS资源集合以及每个ZP CSI-RS资源集合中的ZP CSI-RS资源的配置信息发送给终端设备A。
终端设备A在接收该高层信令后,则确定基站A为当前及之后的下行数据传输配置的多个ZP CSI-RS资源集合以及每个ZP CSI-RS资源集合中包括的资源。
步骤202、基站A向终端设备A指示启用当前数据传输对应的ZP CSI-RS资源集合,终端设备A根据指示的ZP CSI-RS资源集合确定当前数据传输所占的时频资源中部分RE不能映射数据比特,所述部分资源可以是一个或多个PRB,也可以是一个或多个RE。
基站A在向终端设备A传输码字时,可能并不会为当前数据传输启用所有的ZP CSI-RS资源集合,而是只启用该多个ZP CSI-RS资源集合中的一个资源集合,因此,基站A还需要通过DCI指示启用的ZP CSI-RS资源集合。
继续以基站A配置3个ZP CSI-RS资源集合为例,基站A可以用DCI中的一个指示字段指示启用的ZP CSI-RS资源集合。例如,该指示字段为2比特,通过指示该指示字段的不同状态值动态选择不同的ZP CSI-RS资源集合。如表1所示,当该指示字段的状态值为“00”,用于指示没有启用任何ZP CSI-RS资源集合,即资源分配字段指示的全部资源均可以映射数据;当该指示字段的状态值为“01”,用于指示启用ZP CSI-RS资源集合1,即当前数据传输所占的时频资源中与ZP CSI-RS资源集合1中的资源发生重叠的部分资源不能映射数据比特;当该指示字段的状态值为“10”,用于指示启用ZP CSI-RS资源集合2,即当前数据传输所占的时频资源中与ZP CSI-RS资源集合2中的资源发生重叠的部分资源不能映射数据比特;当该指示字段的状态值为“11”,用于指示启用ZP CSI-RS资源集合3,即当前数据传输所占的时频资源中与ZP CSI-RS资源集合3中的资源发生重叠的部分资源不能映射数据比特。
表1
指示字段的状态值 | 触发的ZP CSI-RS资源集合 |
00 | 无ZP CSI-RS资源集合 |
01 | ZP CSI-RS资源集合1 |
10 | ZP CSI-RS资源集合2 |
11 | ZP CSI-RS资源集合3 |
基站A可以在协议中预先配置,或者通过高层信令,或者,通过DCI中的其他字段,指示如表1所示的指示字段中的每一个状态值与ZP CSI-RS资源集合的索引值之间的对应关系,这样,当终端设备A确定该指示字段的状态值后,则确定当前传输所启用的ZP CSI-RS资源集合。
为了扩大无线通信系统的网络边缘覆盖,保证边缘终端设备的服务质量(quality of service,QoS),在5G系统中提出了CoMP场景。
请参考图3A,为CoMP场景的一种网络架构图。如图3A所示,多个基站(即基站A和基站B)组成一个协作集,同时与一个终端设备(即终端设备A)进行通信。协作集内的基站之间的间距较近,或者依靠传输损耗较小的光纤连接,从而协作集内的基站之间的交互时延可以忽略不计,可以认为协作集内的基站中存在一个服务基站(serving transmission reception point,serving TRP),服务基站的作用是确定与该协作集中的基站进行通信的终端设备的调度决策,例如,确定终端设备的物理下行控制信道(physical downlink control channel,PDCCH)的资源,物理下行共享信道(physical downlink shared channel,PDSCH)的资源,物理上行共享信道(physical uplink shared channel,PUSCH)的资源,并在PDCCH中发送DCI,在PUSCH/PDSCH中发送数据或者参考信号等。协作集内除了服务基站之外,其余的基站被称为协作基站(coordinate TRP)。协作基站的作用是根据服务基站的调度决策与终端设备进行通信。或者,服务基站和协作基站均受一个中心控制器控制,中心控制器用于确定服务基站和协作基站的调度策略,而控制信息由服务基站发送给该终端设备。例如,根据服务基站确定的PDCCH中发送DCI信令,在服务基站确定的PUSCH/PDSCH中发送数据或者参考信号等。在5G系统中,这种场景也可以称为理想回 传(ideal backhaul)。
如图3A所示,基站A为服务基站,基站B协作基站。基站A或者中心控制器确定终端设备A的调度决策并由基站A向终端设备A发送DCI,该DCI可以指示调度基站A与终端设备A进行通信,也可以指示调度基站A和基站B同时与终端设备A进行通信。或者,该无线通信系统中也可以同时支持2个DCI。如图3B所示,基站A或者中心控制器在确定终端设备A的调度信息后,基站A可以向终端设备A发送DCI1,基站B可以向终端设备A发送DCI2,终端设备A根据DCI1和DCI2确定终端设备A的调度信息。
请参考图3C,为CoMP场景的另一种网络架构图。如图3C所示,协作集内的基站之间的间距较远,或者协作集内的基站之间依靠铜线连接,其交互时延为2-5ms,甚至可能达到50ms。在这种情况下,多个协作基站可以独立确定与该协作集中的基站进行通信的终端设备的调度决策,每个协作基站独立指示DCI。多个协作基站之间会交互各自的调度策略,然后根据自身的调度策略确定何时与该终端设备进行通信。当多个协作基站根据各自的调度决策同时与该终端设备进行通信时,终端设备会同时收到多个DCI,该多个DCI分别指示该协作基站的PDCCH、PDSCH、PUSCH以及参考信号等。在5G系统中,这种场景也可以称为非理想回传(non-ideal backhaul)。如图3C所示,当基站A和基站B根据自身的调度策略确定同时与终端设备A进行通信后,基站A向终端设备A发送DCI3,基站B向终端设备A发送DCI4,终端设备A根据DCI3确定基站A对终端设备A的调度策略,终端设备A根据DCI4确定基站B对终端设备A的调度策略。
假设将图2所示的基站指示速率匹配资源的方法应用于如图3A~图3C所示的通信系统,则在步骤202中用于指示被触发的ZP CSI-RS资源集合的DCI的开销将增大并且包含冗余信息。
以图3B所示的通信系统为例,基站A和基站B同时与终端设备A进行通信,例如,基站A向终端设备A发送码字1,基站B向终端设备A发送码字2,则需要为每个码字配置ZP CSI-RS资源集合。以现有技术中为每个码字配置3个ZP CSI-RS资源集合为例,则为码字1配置的ZP CSI-RS资源集合为ZP CSI-RS资源集合1~ZP CSI-RS资源集合3,为码字2配置的ZP CSI-RS资源集合为ZP CSI-RS资源集合4~ZP CSI-RS资源集合6。
以现有技术中,通过DCI的2比特指示ZP CSI-RS资源集合为例,则为了指示两个码字触发的ZP CSI-RS资源集合,则需要使用两个该字段分别指示码字0对应的ZP CSI-RS资源集合和码字1对应的ZP CSI-RS资源集合。如表2所示,其中一个字段的状态值用于指示传输码字0对应的ZP CSI-RS资源集合,当该指示字段的状态值为“00”,用于指示没有触发任何ZP CSI-RS资源集合用于码字0的速率匹配,当该指示字段的状态值为“01”,用于指示触发ZP CSI-RS资源集合1用于码字0的速率匹配,当该指示字段的状态值为“10”,用于指示触发ZP CSI-RS资源集合2用于码字0的速率匹配,当该指示字段的状态值为“11”,用于指示触发ZP CSI-RS资源集合3用于码字0的速率匹配。另外一个字段的状态值用于指示触发的ZP CSI-RS资源集合用于码字1的速率匹配,如表3所示,具体指示方式与码字0相似,在此不再赘述。
表2
指示字段的状态值 | 用于码字0的ZP CSI-RS资源集合 |
00 | 无ZP CSI-RS资源集合 |
01 | ZP CSI-RS资源集合1 |
10 | ZP CSI-RS资源集合2 |
11 | ZP CSI-RS资源集合3 |
表3
指示字段的状态值 | 用于码字1的ZP CSI-RS资源集合 |
00 | 无ZP CSI-RS资源集合 |
01 | ZP CSI-RS资源集合4 |
10 | ZP CSI-RS资源集合5 |
11 | ZP CSI-RS资源集合6 |
或者,可以使用现有DCI中的速率匹配指示字段扩展为4比特同时指示ZP CSI-RS资源集合用于码字0和码字1的速率匹配。如表4所示,当该指示字段的状态值为“0000”,用于指示没有触发任何ZP CSI-RS资源集合用于码字0和码字1的速率匹配,当该指示字段的状态值为“0001”,用于指示ZP CSI-RS资源集合1用于码字0的速率匹配以及ZP CSI-RS资源集合4用于码字1的速率匹配,当该指示字段的状态值为“0010”,用于指示ZP CSI-RS资源集合1用于码字0的速率匹配以及ZP CSI-RS资源集合5用于码字1的速率匹配,当该指示字段的状态值为“0011”,用于指示ZP CSI-RS资源集合1用于码字0的速率匹配以及ZP CSI-RS资源集合6用于码字1的速率匹配,当该指示字段的状态值为“1010”,用于指示ZP CSI-RS资源集合1用于码字0的速率匹配以及无ZP CSI-RS资源集合用于码字1的速率匹配,当该指示字段的状态值为“1011”,用于指示无ZP CSI-RS资源集合用于码字0的速率匹配以及ZP CSI-RS资源集合4用于码字1的速率匹配,以此类推。
表4
另外,当支持多基站传输时,该DCI中还需要指示用于协作基站进行干扰测量的RE上是否进行码字的信息比特映射,用于承载进行信道估计的相位跟踪参考信号(phase tracking reference resource,PT-RS)的RE上是否进行码字的信息比特映射,则需要配置的 速率匹配资源集合需要进一步增加,从而会导致DCI中的指示段的比特数进一步增加。
因此,若将现有技术中指示用于传输码字的速率匹配资源的方法将应用于如图3A~图3C所示的通信系统中,则会存在DCI开销大的问题且上述指示会存在冗余信息。例如,采用两个或者多个独立的字段分别指示每个基站发送的码字的速率匹配资源信息。而多个码字的速率匹配资源可能会存在重叠的部分,即多个码字均需要与部分资源进行速率匹配,比如,多个码字均需要与某些传输功率较强且不能与多个码字进行空分复用的其他用户的数据或者参考信号进行速率匹配;同时,多个码字的速率匹配资源可能会存在不重叠的部分,即多个码字中的部分码字需要与某些资源进行速率匹配,比如,某些资源用于测量干扰时,部分码字可以在该资源上传输而其他码字不可以在该资源上传输,再比如,某些资源用于信道测量,且该资源上发送的参考信号与部分码字可以空间正交传输时,该部分码字可以在该资源上传输而其他码字不可以在该资源上传输。
鉴于此,本申请实施例提供一种资源配置方法,用于降低DCI的开销。
本申请实施例的技术方案可以应用于各种通信系统,例如:新空口(new radio,NR)系统、LTE系统或先进的长期演进(advanced long term evolution,LTE-A)系统、全球微波互联接入(worldwide interoperability for microwave access,WiMAX),或无线局域网络(wireless local area networks,WLAN)系统等。
此外,所述通信系统还可以适用于面向未来的通信技术,本申请实施例描述的系统是为了更加清楚的说明本申请实施例的技术方案,并不构成对于本申请实施例提供的技术方案的限定,本领域普通技术人员可知,随着网络架构的演变,本申请实施例提供的技术方案对于类似的技术问题,同样适用。
请参考图3A~图3C,为本申请实施例的三种应用场景。这三种应用场景已在前文中进行介绍,在此不再赘述。
需要说明的是,图3A~图3C所示的通信系统中所包含的基站和终端设备的数量和类型仅仅是一种例举,本申请实施例也并不限制于此。例如,还可以包含更多的基站,或者与更多与基站进行通信的终端设备,为简明描述,不在附图中一一描述。此外,在图3A~图3C所示的通信系统中,尽管示出了基站及终端设备,但所述通信系统中可以并不限于包括基站和终端设备,例如,还可以包括核心网设备或用于承载虚拟化网络功能的设备等,这些对于本领域普通技术人员而言是显而易见的,在此不一一详述。
下面结合附图介绍本申请实施例提供的技术方案。
请参考图4,为本申请提供的一种资源配置方法的流程图。在下面的介绍中,以本申请实施例中的方法应用于如图3A所示的应用场景,以该方法由图3A所示的应用场景中的基站和终端设备执行为例。例如,可以由服务基站和终端设备执行,在图3A所示的应用场景中,基站A为服务基站,终端设备为终端设备A,也可以由服务基站、协作基站和终端设备一起执行,在下面的描述中,以服务基站和终端设备A,也就是,基站A和终端设备A执行该方法为例进行说明,该流程图的描述如下:
步骤401、基站A确定第一资源集合及第二资源集合。
在本申请实施例中,该第一资源集合不承载N个码字中的任意一个码字包括的信息比特,该第二资源集合不承载该N个码字中的部分码字包括的信息比特,N为大于或等于2的整数。
在本申请实施例中,该第一资源集合不承载N个码字中的任意一个码字包括的信息比 特具体包括:当用于承载该N个码字中任意一个码字的资源与该第一资源集合中的任意一个资源元素RE重叠时,在该重叠的RE上不承载该N个码字中的任意一个码字包括的信息比特,可以理解为,第一资源集合中的RE是该N个码字都不用于承载信息比特的资源的集合。该第二资源集合不承载该N个码字中的部分码字包括的信息比特具体包括:当用于承载该N个码字中的部分码字的资源集合中的资源与该第二资源集合中的任意一个RE重叠时,在该重叠的RE上不承载该N个码字中的部分码字包括的信息比特,可以理解为,第二资源集合中的资源是一部分码字不用于承载信息比特的资源,而另一部分码字可以在第二资源集合中的资源上承载信息比特。其中,该N个码字可以被理解为是基站配置的全部码字,即第一资源集合对应于全部码字,该N个码字也可以被理解为是基站启用的全部码字。
需要说明的是,第一资源集合和第二资源集合的个数可以是一个,也可以是多个,为方便说明,在下文中,以第一资源集合和第二资源集合的个数为一个为例。该第一资源集合中的任意一个RE,也可以理解为该第一资源集合中的任意一个资源单元,该资源单元可以是RE,也可以是多个RE的组合,或者也可以是RB等,在此不再赘述。第二资源集合中的任意一个RE也可以作相同的理解,在此不再赘述。
在本申请实施例中,第一资源集合和第二资源集合中的资源的类型相同。例如,第一资源集合和第二资源集合中的资源可以为用于终端设备的下行信道估计和用于信道测量或者波束测量的非0功率CSI-RS(non zero-power CSI-RS,NZP CSI-RS)所占用的部分或者全部资源,或者为用于干扰测量的非0功率或0功率CSI-RS(zero-power CSI-RS,ZP CSI-RS)所占用的部分或者全部资源,或者为公共的参考信号所占用的部分或者全部资源,该速率匹配资源可以配置为ZP CSI-RS资源。为方便说明,在下面的介绍中,以第一资源集合和第二资源集合中的资源为ZP CSI-RS资源为例。
需要说明的是,该N个码字为该方法使用的通信系统中基站可能会向终端设备传输的所有的码字,而实际数据传输中具体使用的码字数需要进一步通知。例如,在图3A所示的通信系统中,包括基站A和基站B,每一个基站在同一时刻可以同时向一个终端设备A传输码字,N的取值可以为2。由于图3A所示的通信系统中,基站的个数只是一种示例,当该通信系统中包括4个或5个或6个基站时,则N的取值可以为4或5或6。在本申请实施例中,不对N的取值进行限制。为方便说明,在下面的介绍中,以N为2为例,2个码字分别为码字0和码字1,那么,可以理解的,第一资源集合为2个码字共用的资源集合,第二资源集合为码字0或码字1专用的资源集合。
下面,对2个码字共用的资源集合以及2个码字专用的资源集合的确定方法进行说明。
基站A可以根据如下几种情况中的其中一种或多种,确定2个码字共用的资源集合中的资源:
情况a、基站A和基站B可以同时与多个终端设备进行通信,而其他终端设备的用于信道测量的CSI-RS通常是未经过波束赋形(beamforming)的参考信号,或者是未经过精确波束赋形的参考信号,因此,基站A和基站B向终端设备A发送的码字会与其他终端设备的用于信道测量的CSI-RS之间存在较强的相互干扰。从而,为了保证通信质量,2个码字均需要与其他终端设备的用于信道测量的CSI-RS所占用的资源进行速率匹配,也就是说,其他终端设备的用于信道测量的CSI-RS所占用的资源不承载2个码字中的任意一个码字的信息比特,所述参考信号占用的带宽同时包括基站A和基站B调度的码字所占 用的带宽。
情况b、基站A和基站B与终端设备进行通信的资源中包括用于测量其他用户干扰的信道状态信息干扰测量(channel state information interference measurement,CSI-IM)的参考信号的资源,因此,为了保证接入该通信系统的终端设备的干扰测量的精确性,则2个码字均需要与用于CSI-IM的参考信号所占用的资源进行速率匹配,也就是说,用于CSI-IM的参考信号所占用的资源不承载2个码字中的任意一个码字的信息比特,所述参考信号占用的带宽同时包括基站A和基站B调度的码字所占用的带宽。
情况c、当多个用于波束管理的CSI-RS所占用的资源配置为开启(on)状态时,也就是说,该通信系统中的终端设备固定其接收波束在该多个用于波束管理的CSI-RS所占用资源上,接收基站采用多个发送波束发送的CSI-RS时,考虑到如下两个场景中,2个码字均需要与相同的CSI-RS所占用的资源进行速率匹配,所述参考信号占用的带宽同时包括基站A和基站B调度的码字所占用的带宽:
场景1:基站A和基站B进行波束训练同时为终端设备A传输码字。由于来自一个天线面板的两个波束不能同时使用,当波束训练的发送波束和码字的发送波束来自同一个基站的天线面板时,2个码字均需要与相同的CSI-RS所占用的资源进行速率匹配。如图5A所示,a图是NZP CSI-RS资源集合所占的资源,以该资源为RE为例。其中,NZP CSI-RS资源集合1和NZP CSI-RS资源集合2由基站A采用不同的发送波束发送,NZP CSI-RS资源集合3和NZP CSI-RS资源集合4由基站B采用不同的发送波束发送。如图5A所示,NZP CSI-RS资源集合1中包括的RE占用的OFDM符号为OFDM1,占用的子载波号为子载波0、子载波2、子载波4,NZP CSI-RS资源集合2中包括的RE占用的OFDM符号为OFDM2,占用的子载波号为子载波0、子载波2、子载波4,NZP CSI-RS资源集合3中包括的RE占用的OFDM符号为OFDM1,占用的子载波号分别为子载波1、子载波3,NZP CSI-RS资源集合4中包括的RE占用的OFDM符号为OFDM2,占用的子载波号分别为子载波1、子载波3。由于不同波束不能来自相同的天线面板的限制,从而NZP CSI-RS资源集合1和NZP CSI-RS资源集合2所在的OFDM符号上均不能发送码字0,NZP CSI-RS资源集合3和NZP CSI-RS资源集合4所在的OFDM符号上均不能发送码字1。由于NZP CSI-RS资源集合1所占用的OFDM符号为OFDM1,NZP CSI-RS资源集合2所占用的OFDM符号为OFDM2,则OFDM1和OFDM2对应的RE不能发送码字0,从而得到如b图所示的码字0实际传输所占用的RE;同理,得到如c图所示的码字1实际传输所占用的RE。从b图和c图中可以看出,与码字0进行速率匹配的资源和与码字1进行速率匹配的资源相同。
场景2:基站A和基站B进行波束训练同时为终端设备A传输码字。当波束训练的接收波束和码字的接收波束相同时,如图5B所示,d图是NZP CSI-RS资源1~NZP CSI-RS资源4分别所占的RE,其中,NZP CSI-RS 1和NZP CSI-RS 3由基站A采用不同的发送波束发送且终端设备A采用相同的接收波束接收,且接收波束与码字0的接收波束相同;NZP CSI-RS 2和NZP CSI-RS 4由基站B采用不同的发送波束发送且终端设备A采用相同的接收波束接收,且接收波束与码字1的接收波束相同。由于同一时刻多种信号的接收波束相同,所以可以同时接收多种信号,则两个码字只需要绕开NZP CSI-RS所占的RE保证CSI-RS和码字的接收性能,从而得到如e图所示的码字0实际传输所占用的RE和如f图所示的码字1实际传输所占用的RE。由e图和f图可以看出,与码字0进行速率匹配的资 源均包括OFDM符号为OFDM1,子载波号为子载波0、子载波2以及子载波4对应的RE,以及OFDM符号为OFDM2,子载波号为子载波0、子载波2以及子载波4对应的RE。
需要说明的是,在这种情况下,终端设备A需要假设,与基站为其配置的NZP CSI-RS资源进行速率匹配的规则可以成立,也就是说,终端设备假设PDSCH传输所占的RE同时绕开为该终端设备配置的全部NZP CSI-RS和基站指示的用于速率匹配的ZP CSI-RS资源集合;或者,与基站为其配置的NZP CSI-RS资源进行速率匹配的规则不成立,也就是说,终端设备不预先假设PDSCH传输所占的RE绕开为该终端设备配置的全部NZP CSI-RS,终端设备根据基站指示的用于速率匹配的ZP CSI-RS资源集合确定为该终端设备配置的NZP CSI-RS是否需要速率匹配。可以理解为,当基站配置了上述第一资源集合和第二资源集合时,终端设备在接收数据时将不预先假设该数据与基站指示给该终端设备的非零功率CSI-RS进行速率匹配。具体地,当该非零功率CSI-RS与被启用的第一资源集合和第二资源集合所占的RE完全或者部分重叠时,数据需要在完全或者部分重叠的RE上进行速率匹配,当该非零功率CSI-RS与被启用的第一资源集合和第二资源集合所占的RE不重叠时,数据不需要在非零功率CSI-RS上进行速率匹配。其中,基站指示非零功率CSI-RS的方式可以为通过高层信令配置周期性的CSI-RS,或者进一步通过MAC CE激活的半静态的CSI-RS,或者进一步通过DCI指示启用的非周期性的CSI-RS。
需要说明的是,当采用2个DCI调度数据传输时,每个DCI指示启用的码字分别与每个DCI指示启用的非周期性的非零功率CSI-RS进行速率匹配。例如,当第一个DCI用于指示启用码字0及指示启用非周期性的NZP CSI-RS集合1进行速率匹配,第二个DCI用于指示启用码字1及指示启用非周期性的NZP CSI-RS集合2进行速率匹配,则码字0则使用第一个DCI指示的NZP CSI-RS集合1进行速率匹配而不使用NZP CSI-RS集合2进行速率匹配,码字1则使用第二个DCI指示的NZP CSI-RS集合2进行速率匹配而不使用NZP CSI-RS集合2进行速率匹配。
基站A可以根据如下几种情况中的其中一种或多种,确定2个码字专用的资源集合中的资源:
情况d、对于CSI-IM的参考信号,当服务基站需要测量协作基站的干扰时,协作基站的码字可以在该CSI-IM的参考信号所占用的资源上发送,而服务基站的码字不能在该CSI-IM的参考信号所占用的资源上发送,也就是说,该CSI-IM的参考信号所占用的资源能用于承载基站B发送的码字的信息比特,但该资源不能用于承载基站A发送的码字的信息比特,由此导致2个码字需要与不同的资源进行速率匹配。
情况e、通常,协作集内的基站之间的传输信道为正交关系或者近似正交关系,而正交的波束之间信道相关性较低,因此,协作集内中,一个基站发送的码字和另一个基站发送的参考信号之间的干扰较小。而一个基站内用于发送不同信号的信道之间为非正交关系,而非正交的波束之间信道相关性较高会带来较大的干扰,因此,为服务基站(也就是基站A)配置的经过精确预编码加权的参考信号所占用的资源上不能用于承载服务基站(也就是基站A)发送的码字的信息比特,但是该资源可以用于承载协作基站(也就是基站B)发送的码字的信息比特,该经过精确预编码加权的参考信号可以是用于CSI反馈的CSI-RS等,在此不一一举例。请参考图6A,基站A为基站A和基站B分配的用于传输码字的RB相同,例如,为RB1~RB3以及RB5~RB9。而在每一个RB中,OFDM符号为OFDM2且子载波号为子载波1、子载波3、子载波5对应的RE以及OFDM符号为OFDM4且子 载波号为子载波0、子载波2、子载波4对应的RE不用于承载基站A发送的码字的信息比特;OFDM符号为OFDM2且子载波号为子载波0~子载波1、子载波4~子载波5对应的RE以及OFDM符号为OFDM4且子载波号为子载波2~子载波5对应的RE不用于承载基站B发送的码字的信息比特。
情况f、如果某些RS只占用某些特定的子带,例如某些RS只占用子载波号为子载波5的频域资源,在这种情况下,当为基站A和基站B分配的用于传输码字的频域资源不同时,比如基站A和基站B分别通过各自的DCI信令指示各自调度的码字的时频资源分配信息,或者基站A和基站B通过一个DCI信令指示两个基站各自调度的码字的时频资源分配信息,则2个码字需要与不同的资源进行速率匹配。如图6B所示,为基站A分配的用于传输码字的RB为RB0~RB2以及RB7~RB9,为基站B分配的用于传输码字的RB为RB2~RB3以及RB5~RB6。假设某些RS只占用子载波号为子载波5且OFDM符号为OFDM2对应的RE,那么为基站A分配的用于传输码字的资源中包括该RS,而为基站B分配的用于传输码字的资源中不包括该RS,从而,基站A需要对该RS所占用的资源进行速率匹配,而基站B则不需要对该RS所占用的资源进行速率匹配,从而基站A和基站B需要与不同的资源进行速率匹配。
基站A根据上述方式,确定码字0和码字1共用的资源集合,以及码字0和码字1专用的资源集合。例如,第一资源集合(码字0和码字1共用的资源集合)为ZP CSI-RS资源集合1,第二资源集合(例如为码字0专用的资源集合)为ZP CSI-RS资源集合2。
步骤402、基站A发送第一信息及第二信息,终端设备A接收该第一信息和该第二信息。
在本申请实施例中,该第一信息用于指示第一资源集合,该第二信息用于指示第二资源集合。
具体来讲,当基站A确定第一资源集合和第二资源集合后,则可以采用高层信令,例如无线资源控制(radio resource control,RRC)信令或者媒体接入控制控制元素(media access control control element,MAC CE)信令向终端设备A指示该第一信息和第二信息。
需要说明的是,该第一信息和第二信息仅用于指示资源集合中包括的资源,可以理解为,第一信息和第二信息仅用于指示基站A为终端设备A配置了2个用于进行速率匹配的资源集合,分别为第一资源集合和第二资源集合,以及第一资源集合中包括哪些资源,和/或资源集合中包括的资源的配置信息,第二资源集合中包括哪些资源,但是该第一信息和第二信息可以不包括第一资源集合和第二资源集合的用途,即与N个码字之间的对应关系,或者说,没有通过该第一信息和第二信息向终端设备A指示第一资源集合和第二资源集合中,哪一个资源集合是码字0和码字1共用的资源集合,哪一个资源集合是码字0或码字1专用的资源集合。
另外,需要说明的是,第一信息和第二信息可以是同一个信息,可以理解为,一个信息用于指示第一资源集合和第二资源集合;第一信息和第二信息也可以是两个不同的信息,可以理解为,基站A发送了两个信息,分别指示该第一资源集合和第二资源集合,当第一信息和第二信息是两个不同的信息时,可以通过同一个高层信令发送该第一信息和第二信息,也可以通过不同的高层信令分别发送该第一信息和第二信息。
当然,由于基站A为服务基站,第一信息和第二信息可以由基站A发送,也可以是基站A控制基站B发送,也可以是基站A发送一个信息,基站A控制基站B发送另一个信 息,具体的发送方式在此不作限制。
步骤403、终端设备A确定该第一资源集合及该第二资源集合。
以第一资源集合为ZP CSI-RS资源集合1,第二资源集合为ZP CSI-RS资源集合2为例,当终端设备A接收该第一信息和第二信息后,则根据该第一信息和第二信息中指示的内容,确定第一资源集合为ZP CSI-RS资源集合1或ZP CSI-RS资源集合1中包括的资源、第二资源集合为ZP CSI-RS资源集合2或ZP CSI-RS资源集合2中包括的资源,从而确定每个资源集合中的资源所占的时频资源位置。
步骤404、基站A发送下行控制信息DCI,终端设备A接收该DCI。
由于第一信息和第二信息没有向终端设备A指示第一资源集合和第二资源集合的用途,或者说,没有向终端设备A指示第一资源集合和第二资源集合中,哪一个资源集合是码字0和码字1共用的资源集合,哪一个资源集合是码字0或码字1专用的资源集合,因此,当基站A向终端设备A指示该第一资源集合和第二资源集合后,则还需要向终端设备A发送第三信息,该第三信息用于指示该第一资源集合不承载N个码字中的任意一个码字包括的信息比特和/或该第二资源集合不承载该N个码字中的部分码字包括的信息比特。
在本申请实施例中,通过该DCI中的字段指示该第三信息。例如,可以通过DCI中的一个字段指示该第三信息,也可以通过DCI中的多个字段指示该第三信息。下面,分别以DCI中一个字段指示该第三信息和DCI中的两个字段指示该第三信息为例,对DCI的指示方式进行说明。
第一种指示方式,该DCI中的一个字段用于指示该第三信息,以该字段为第一字段为例,具体如下:
该第一字段的第一状态值用于指示该第一资源集合不承载该N个码字中的任意一个码字包括的信息比特;或
该第一字段的第二状态值用于指示该第二资源集合不承载该N个码字中的部分码字包括的信息比特;或
该第一字段的第三状态值用于指示该第一资源集合不承载该N个码字中的任意一个码字包括的信息比特以及该第二资源集合不承载该N个码字中的部分码字包括的信息比特;或
该第一字段的第三状态值用于指示在第一资源集合和第二资源集合上不作速率匹配。
第一字段中可以仅用于指示上述状态值中的一个状态值,比如第一状态值,也就是说,第一字段只有一个状态值;第一字段也可以用于指示上述状态值中的多个状态值,比如第一字段可以用于指示第一状态值和第二状态值,例如,第一字段为1个比特的字段,该比特可以有两种取值,该比特的取值为“0”则指示第一状态值,该比特的取值为“1”则指示第二状态值;或者,第一字段也可以用于指示第一状态值、第二状态值和第三状态值,例如,第一字段为2个比特的字段,该2个比特的取值可以有四种,“00”~“11”,则该四个取值中的三个取值分别用于指示该第一状态值、该第二状态值以及第三状态值。当然,也可以采用其他指示方式,在此不作限制。
具体来讲,该第一字段是基站A和终端设备A预先约定的,或者,是由基站A通过第一信息或者第二信息指示的,或者是由基站A通过其他信令通知的,在此不作限制。下面以两种示例对该指示方式进行说明。
第一种示例,第一资源集合为ZP CSI-RS资源集合1,第二资源集合为码字0专用的 资源集合,为ZP CSI-RS资源集合2。
该第一字段的每一个状态值均可以指示至少一个ZP CSI-RS资源集合,例如,第一字段包括2个比特,从而第一字段包括4个状态值,分别为“00”、“01”、“10”、“11”,预先约定每一个状态值所指示的ZP CSI-RS资源集合,例如,当第一字段的状态值为“11”时,用于指示ZP CSI-RS资源集合1;当第一字段的状态值为“01”时,用于指示ZP CSI-RS资源集合2;当第一字段的状态值为“10”时,用于指示ZP CSI-RS资源集合1和ZP CSI-RS资源集合2,当第一字段的状态值为“00”时,用于指示不启用ZP CSI-RS资源集合。
进一步,预先约定每个状态值与共用的资源集合以及专用的资源集合之间的映射关系。例如,当第一字段的状态值指示一个ZP CSI-RS资源集合时,则表示该状态值指示的ZP CSI-RS资源集合为2个码字共用的ZP CSI-RS资源集合或者部分码字专用的资源集合,当第一字段的状态值指示两个及以上的ZP CSI-RS资源集合时,则表示该状态值指示的多个ZP CSI-RS资源集合中的一个ZP CSI-RS资源集合是2个码字共用的ZP CSI-RS资源集合,剩余的资源集合则为2个码字中的部分码字专用的ZP CSI-RS资源集合,比如ZP CSI-RS资源集合索引值较小的为2个码字共用的ZP CSI-RS资源集合,ZP CSI-RS资源集合索引值较大的为2个码字中的一个码字专用的ZP CSI-RS资源集合。
进一步,当确定该状态值指示的ZP CSI-RS资源集合为2个码字共用的ZP CSI-RS资源集合或者部分码字专用的资源集合时,则可以根据该状态值所指示的ZP CSI-RS资源集合的其他信息,例如ZP CSI-RS资源集合的索引号或者编号等,区分该状态值所指示的ZP CSI-RS资源集合是2个码字专用的ZP CSI-RS资源集合还是部分码字专用的ZP CSI-RS资源集合,例如,以索引号为例,预先约定若索引号为初始值的ZP CSI-RS资源集合为2个码字共用的ZP CSI-RS资源集合,例如,索引号的初始值为0或者1;索引号不为初始值的ZP CSI-RS资源集合为部分码字共用的ZP CSI-RS资源集合,例如,索引号的初始值为1,若该状态值指示的ZP CSI-RS资源集合的索引号与初始值连续,即为2,则确定该ZP CSI-RS资源集合为码字0专用的资源集合,若该状态值指示的ZP CSI-RS资源集合的索引号与初始值不连续,例如为3,则确定该ZP CSI-RS资源集合为码字1专用的资源集合。
当确定该状态值指示的多个ZP CSI-RS资源集合中的一个ZP CSI-RS资源集合是2个码字共用的ZP CSI-RS资源集合,剩余的资源集合则为2个码字中的部分码字专用的ZP CSI-RS资源集合时,则通过预定义的规则确定区分共用的资源集合和部分码字专用的资源集合,例如,该预定义的规则可以是:该状态值所指示的多个ZP CSI-RS资源集合中的第一个资源集合为共用的资源集合,剩余的资源集合为部分码字专用的资源集合,其中,如何区分剩余的资源集合是码字0的专用资源集合还是码字1的专用资源集合,可以根据剩余的资源集合的其他信息,例如索引号或者编号等,具体区分方式与前述区分该状态值指示的ZP CSI-RS资源集合为2个码字共用的ZP CSI-RS资源集合或者部分码字专用的资源集合相同,在此不再赘述。
针对该部分码字的指示方式进行说明。
可选的,该第二资源集合不承载N个码字中的部分码字具体的指示方式为,基站通过高层信令在第二资源集合配置信息中进一步配置码字的数量,或者码字的索引值,则第二资源集合仅对该集合配置信息中包括的码字生效。
可选的,基站通过DCI信令进一步指示第二资源集合对应的部分码字,即在第一字段中直接指示该第二资源集合和部分码字(包括码字的数量或者码字的索引值)的关联关系, 则第二资源集合仅对该集合配置信息中包括的码字生效,或者也可以通过该第一字段进一步启用该第二资源集合。
可选的,基站可以通过DCI信令隐式指示第二资源集合对应的部分码字,比如预定义通过高层信令配置的资源集合中部分资源集合为第一资源集合,其余为第二资源集合。当采用2个DCI调度数据传输时,第二资源集合对应的码字为启用该第二资源集合的DCI所启用的码字,当采用1个DCI调度数据传输且该DCI中包括两个字段用于启用资源集合时,预先定义每个字段对应的码字,则通过第二资源集合对应的码字为启用该第二资源集合的字段所对应的码字。
需要说明的是,在下文的描述中,对部分码字的指示方式与上述三种方式中的任意一种相同,在下文中将不再赘述。
第二种示例,码字0和码字1均有专用的资源集合,则基站A配置的第二资源集合为第三资源集合中的一个资源集合,可以理解为,第二资源集合为第三资源集合中的一个子集,例如,第三资源集合为码字0专用的资源集合和码字1专用的资源集合,第二资源集合为码字0专用的资源集合。以第一资源集合为ZP CSI-RS资源集合1,第二资源集合为码字0专用的资源集合,为ZP CSI-RS资源集合2,第三资源集合中还包括码字1专用的资源集合,为ZP CSI-RS资源集合3。
该第一字段的每一个状态值均可以指示至少一个ZP CSI-RS资源集合,例如,第一字段包括1个比特,从而第一字段包括2个状态值,分别为“0”和“1”,预先约定每一个状态值所指示的ZP CSI-RS资源集合,例如,请参考表5,在表5中,当第一字段的状态值为“0”时,用于指示ZP CSI-RS资源集合1;当第一字段的状态值为“1”时,用于指示ZP CSI-RS资源集合1~ZP CSI-RS资源集合3。
表5
指示字段的状态值 | 指示的ZP CSI-RS资源集合 |
1 | ZP CSI-RS资源集合2、1、3 |
0 | ZP CSI-RS资源集合1 |
进一步,预先约定每个状态值与共用的资源集合以及专用的资源集合之间的映射关系。例如,当第一字段的状态值指示一个ZP CSI-RS资源集合时,则表示该状态值指示的ZP CSI-RS资源集合为2个码字共用的ZP CSI-RS资源集合,当第一字段的状态值指示两个及以上的ZP CSI-RS资源集合时,则表示该状态值指示的多个ZP CSI-RS资源集合中的一个ZP CSI-RS资源集合是2个码字共用的ZP CSI-RS资源集合,剩余的资源集合则为2个码字中的部分码字专用的ZP CSI-RS资源集合。
进一步,当确定该状态值指示的多个ZP CSI-RS资源集合中的一个ZP CSI-RS资源集合是2个码字共用的ZP CSI-RS资源集合,剩余的资源集合则为2个码字中的部分码字专用的ZP CSI-RS资源集合时,则通过预定义的规则确定区分共用的资源集合和部分码字专用的资源集合,例如,该预定义的规则可以是:该状态值所指示的多个ZP CSI-RS资源集合中的第二个资源集合为共用的资源集合,第一个资源集合为码字0专用的资源集合,第三个资源集合为码字1的专用资源集合。请参考表5,表5中的第二个资源集合为ZP CSI-RS资源集合1,则码字0和码字1共用的资源集合为ZP CSI-RS资源集合1,表5中第一个资源集合为ZP CSI-RS资源集合2,则码字0专用的资源集合为ZP CSI-RS资源集合2, 表5中第三个资源集合为ZP CSI-RS资源集合3,则码字1专用的资源集合为ZP CSI-RS资源集合3。
需要说明的是,上述两种示例不应理解为对本申请实施例中的第一种指示方式的限制,本领域技术人员也可以根据上述两种示例,通过举一反三给出更多的示例,在此不再赘述。
第二种指示方式,该DCI中的两个字段用于指示该第三信息,以该两个字段为第二字段和第三字段为例,具体如下:
第一种示例,该第二字段用于指示该第一资源集合不承载该N个码字中的任意一个码字包括的信息比特,该第三字段用于指示该第二资源集合不承载该N个码字中的部分码字包括的信息比特。
第二种示例,该第二字段用于指示该第一资源集合不承载该N个码字中的任意一个码字包括的信息比特,该第三字段用于指示该第一资源集合不承载该N个码字中的任意一个码字包括的信息比特以及该第二资源集合不承载该N个码字中的部分码字包括的信息比特。
具体来讲,该第二字段和第三字段是基站A和终端设备A预先约定的,或者,是由基站A通过第一信息或者第二信息指示的,或者是由基站A通过其他信令通知的,比如根据启用码字数量确定第二字段和第三字段指示的资源集合为第一资源集合还是第二资源集合,比如启用码字数量为1时,两个字段均用于指示第一资源集合,当启用码字数量大于1时,其中一个字段用于指示第一资源集合,另一个字段用于指示第二资源集合。当然,也可以通过其他方式指示,在此不一一列举。
进一步,第二字段指示的资源集合的作用以及第三字段指示的资源集合的作用也可以是预先约定好的。在第一种示例中,预先约定第二字段用于指示共用的资源集合以及第三字段用于指示专用的资源集合,且每个字段的状态值均可以指示至少一个ZP CSI-RS资源集合,例如,第二字段为1个比特,该第二字段的状态值包括“0”和“1”,当第二字段的状态值为“0”时,用于指示ZP CSI-RS资源集合1;当第一字段的状态值为“1”时,用于指示ZP CSI-RS资源集合2,从而根据该第二字段的状态值指示共用的资源集合。第三字段的指示方式与第二字段相同,在此不再赘述。
在第二种示例中,预先约定第二字段用于指示共用的资源集合以及第三字段用于指示共用的资源集合以及部分码字专用的资源集合。其中,第二字段的指示方式与第一种示例中相同,第三字段的指示方式可以参考第一种指示方式中第二示例,在此不再赘述。
另外,需要说明的是,该第一字段的状态值还用于指示从该第一资源集合和该第二资源集合中启用至少一个资源集合;或,该第二字段和/或该第三字段还用于指示从该第一资源集合和该第二资源集合中启用至少一个资源集合。
具体来讲,当基站A通过第一字段指示第三信息时,该第一字段指示的资源集合即为基站A需要启用的至少一个资源集合。启用至少一个资源集合,可以理解为,开启在第一字段指示的资源集合中做速率匹配的功能,或者,可以理解为待传输的码字需要与第一字段指示的资源集合做速率匹配,或者,可以理解为指示资源集合的生效时间或者生效次数。例如,请参考表5,当第一字段的状态值为1,该状态值指示共用的资源集合为ZP CSI-RS资源集合1,则该状态值还用于指示启用ZP CSI-RS资源集合1(也就是第一资源集合)进行速率匹配。当第一字段的状态值为0,该状态值指示共用的资源集合为ZP CSI-RS资源集合1、码字0专用的资源集合为ZP CSI-RS资源集合2以及码字1专用的资源集合为ZP CSI-RS资源集合3,则该状态值还用于指示启用ZP CSI-RS资源集合1(也就是第一资 源集合)、ZP CSI-RS资源集合2(也就是第二资源集合)以及ZP CSI-RS资源集合3进行速率匹配,DCI指示启用资源集合x,该资源集合生效于该DCI指示的当次数据传输。
当基站A通过第二字段和第三字段指示第三信息时,可以使用第二字段或者第三字段中的一个字段来指示基站A需要启用的至少一个资源集合,例如,可以仅通过第二字段指示需要启用的至少一个资源集合,或者,也可以使用第二字段和第三字段一起指示基站A需要启用的至少一个资源集合,例如,第二字段指示ZP CSI-RS资源集合1,第三字段指示ZP CSI-RS资源集合2,则基站A需要启用的资源集合为ZP CSI-RS资源集合1(也就是第一资源集合)和ZP CSI-RS资源集合2(也就是第二资源集合)。
需要说明的是,若N为大于2时,具体指示方式以N取2时的方式相同,在此不再赘述。
步骤405、终端设备A根据DCI确定该第一资源集合不承载N个码字中的任意一个码字包括的信息比特和/或该第二资源集合不承载N个码字中的部分码字包括的信息比特。
终端设备A在接收该DCI后,则根据DCI中的字段确定上述内容。具体来讲,该字段可以是步骤404中的第一字段,也可以是步骤404中的第二字段和第三字段。
需要说明的是,若DCI中的字段还用于指示基站A启用的至少一个资源集合,则终端设备A还可以根据该字段确定基站A启用的资源集合。
步骤406、基站A指示启用的N个码字中的至少一个码字,终端设备A确定被启用的码字。
具体来讲,基站A可以使用承载第三信息的DCI中的一个字段指示启用的至少一个码字,例如,启用码字0或启用码字1或启用码字0和码字1,或者基站A也可以通过再次发送一个DCI来指示启用的至少一个码字,在此不作限制。启用码字,可以理解为,基站A需要传输该码字。
步骤407、基站A发送被启用的码字,终端设备A接收被启用的码字。
以被启用的码字为码字0,且码字0的比特序列为
为例,其中,
是在PDSCH中传输的码字0的比特数,基站A将码字0的比特序列与加扰序列c
(q)(i)进行运算,得到加扰后的比特序列
然后,基站A可以采用正交相移键控(quadrature phase shift keyin,QPSK)或者16种符号的正交幅度调制(quadrature amplitude modulation,QAM)或64QAM或者256QAM调制方式中的任意一种,对加扰后的比特序列
进行调制,得到一组复值调制符号
然后采用表6中所示的层映射规则,将复值调制符号映射到一层或多层。复值调制符号
被映射到层
上,
其中,v是传输层数,
是每层的调制符号数。如表6所示,每个码字支持最大4层的下行数据传输,且每个码字对应各自独立的编码调制方案(modulation and codeing scheme,MCS),在基站A发送给终端设备A的DCI中包含每个码字对应的MCS字段,该字段指示调制方式、目标码率和谱效率信息等信息。
表6
然后,映射到每层的调制符号x(i)=[x
(0)(i) ... x
(υ-1)(i)]
T根据公式(1)映射到基站A的天线端口上,公式(1)如下:
其中,PDSCH资源可以通过用于承载第三信息的DCI指示,也可以通过其他的DCI指示,在此不作限制。通过DCI指示为终端设备A分配的PDSCH资源的频域资源包括两种指示方式。第一种方式为分布式频域资源指示方式,在该指示方式的配置信息中包括一个位图(bitmap)指示分配给终端设备A的资源块组(resource block group,RBG)。对于一个部分带宽(bandwidth part,BWP)而言,将BWP按照以RBG大小粒度进行划分,每个RBG大小的带宽对应bitmap中一个比特。第二种方式为集中式频域资源分配,在该指示方式的配置信息中包括调度的PRB的起始位置和PRB个数,则该调度方式为连续的频域资源调度。在该指示方式的配置信息中还包括时域资源分配,具体可以是以调度的OFDM符号的起始位置和OFDM符号个数指示,还可以包括调度的时隙(slot)的起始位置和slot的个数指示。例如,图7所示,BWP中包含4个PRB,且RBG大小为1个PRB,时域资源分配为1个slot和12个OFDM符号,则bitmap指示为“1010”对应的资源为分配为终端设备A的PDSCH资源。
在上述技术方案中,通过配置N个码字共用的速率匹配资源(第一资源集合)和N个码字中部分码字专用的速率匹配资源(第二资源集合),并通过DCI分别指示该共用的速率匹配资源和该专用的速率匹配资源,从而可以减少重复为将N个码字指示相同的速率匹配资源,可以减少在CoMP传输时用于指示速率匹配资源的指示字段的比特数,以节省用于指示速率匹配资源的指示信息的开销。
在图4所示的实施例中,介绍了通过DCI指示基站为终端设备配置的第一资源集合和第二资源集合。下面再介绍一个实施例,用于介绍基站采用其他方式指示该第一资源集合和第二资源集合。
请参考图8,为本申请提供的另一种资源配置方法的流程图。在下面的介绍中,以本申请实施例中的方法应用于如图3A所示的应用场景,以该方法由图3A所示的应用场景中的基站和终端设备执行为例。例如,可以由服务基站和终端设备执行,在图3A所示的应用场景中,基站A为服务基站,终端设备为终端设备A,也可以由服务基站、协作基站和终端设备一起执行,在下面的描述中,以服务基站和终端设备A,也就是,基站A和终端设备A执行该方法为例进行说明,该流程图的描述如下:
步骤801、基站A确定第一资源集合及第二资源集合。
步骤801与步骤401相同,在此不再赘述。
步骤802、基站A发送第一信息及第二信息,终端设备A接收该第一信息和该第二信息。
在本申请实施例中,第一信息及第二信息除了包含步骤402中第一信息和第二信息中的内容之外,该第一信息还包括该第一资源集合的标识信息和该N个码字的标识信息,该第二信息包括该第二资源集合的标识信息和该N个码字的部分码字的标识信息。
这样,基站A通过在第一信息和第二信息中显式配置与每个资源集合对应的码字的标识信息来指示第一资源集合和第二资源集合的作用。具体来讲,当第一信息或者第二信息中的一个信息包括N个码字的标识信息时,则认为该信息指示的资源集合为N个码字共用的速率匹配资源;当第一信息或者第二信息中的一个信息包括N个码字的部分码字的标识 信息时,则认为该信息指示的资源集合为该部分码字专用的速率匹配资源。
需要说明的是,资源集合的标识信息可以是资源集合的编号、索引号等信息,码字的标识信息可以是码字的索引号、编号等。例如,以N取2为例,2个码字分别为码字0和码字1,2个码字共用的资源集合为ZP CSI-RS资源I(罗马字符),则第一信息中包括A、0和1三个标识信息,其中,基站A和终端设备A预先约定罗马字符表示资源集合的编号,数字表示码字的编号,由于第一信息中包括2个码字的编号,因此,该第一信息指示的资源集合为2个码字共用的资源集合。采用同样的方式设置第二信息中包括的标识信息,在此不再赘述。
步骤803、终端设备A根据第一信息和第二信息确定该第一资源集合不承载N个码字中的任意一个码字包括的信息比特和/或该第二资源集合不承载N个码字中的部分码字包括的信息比特。
以第一资源集合为ZP CSI-RS资源集合1,第二资源集合为ZP CSI-RS资源集合2为例,终端设备A在接收该第一信息和第二信息后,则根据第一信息和第二信息中的内容,确定第一资源集合为ZP CSI-RS资源集合1、ZP CSI-RS资源集合1中包括的资源以及第一资源集合为2个码字共用的资源集合,第二资源集合为ZP CSI-RS资源集合2、ZP CSI-RS资源集合2中包括的资源以及第二资源集合为部分码字专用的资源集合(当第二信息中包括的码字的标识信息为码字0的编号,则第二资源集合为码字0的专用资源集合)。
步骤804、基站A指示启用的至少一个资源集合,终端设备确定被启用的至少一个资源集合。
具体来讲,基站A可以通过DCI指示启用的至少一个资源集合。具体指示方式在此不作限制。
步骤805、基站A指示启用的N个码字中的至少一个码字,终端设备A确定被启用的码字。
需要说明的是,步骤504和步骤505可以通过一个DCI进行指示,例如,该DCI中的一个字段用于指示启用的至少一个资源集合,另一个字段用于指示启用的至少一个码字;或者,也可以通过两个DCI分别指示,在此不作限制。
步骤806、基站A发送被启用的码字,终端设备A接收被启用的码字。
步骤806与步骤407相同,在此不再赘述。
在上述技术方案中,基站通过第一信息和第二信息显示指示N个码字共用的速率匹配资源(第一资源集合)和N个码字中部分码字专用的速率匹配资源(第二资源集合),从而在CoMP传输时可以无需再指示该速率匹配资源的配置情况,可以节省用于指示速率匹配资源的指示信息的开销。
在图8所示的实施例中,介绍了基站通过显式配置的方式为终端设备配置的第一资源集合和第二资源集合。下面再介绍一个实施例,用于介绍基站采用其他方式指示该第一资源集合和第二资源集合。
请参考图9,为本申请提供的另一种资源配置方法的流程图。在下面的介绍中,以本申请实施例中的方法应用于如图3A所示的应用场景,以该方法由图3A所示的应用场景中的基站和终端设备执行为例。例如,可以由服务基站和终端设备执行,在图3A所示的应用场景中,基站A为服务基站,终端设备为终端设备A,也可以由服务基站、协作基站和终端设备一起执行,在下面的描述中,以服务基站和终端设备A,也就是,基站A和终端 设备A执行该方法为例进行说明,该流程图的描述如下:
步骤901、基站A确定第一资源集合及第二资源集合。
步骤901与步骤401相同,在此不再赘述。例如,第一资源集合为ZP CSI-RS资源集合1,该第一资源集合为2个码字(码字0和码字1)共用的资源集合;第二资源集合为ZP CSI-RS资源集合2,该第二资源集合为码字0专用的资源集合。
步骤902、基站A发送第一信息及第二信息,终端设备A接收该第一信息和该第二信息。
步骤902与步骤402相同,在此不再赘述。
步骤903、基站A发送第四信息,终端设备A接收第四信息。
在本申请实施例中,该第四信息指示的内容包括如下两种具体内容:
第一种内容:第四信息用于指示该第一资源集合,以及,用于指示启用该N个码字中的至少一个码字。
在这种情况下,当该第四信息用于指示该第一资源集合以及用于指示启用该N个码字中的一个码字时,则第四信息指示的资源集合不承载该被启用的一个码字包括的信息比特。当该第四信息用于指示该第一资源集合以及用于指示启用该N个码字中的多个码字时,则该第四信息指示的资源集合不承载该被启用的多个码字中的任意一个码字包括的信息比特。
例如,第四信息指示ZP CSI-RS资源集合1,以及指示启用码字0,则,ZP CSI-RS资源集合1不承载码字0包括的信息比特;第四信息指示ZP CSI-RS资源集合1以及指示启用码字0和码字1,则ZP CSI-RS资源集合1不承载码字0包括的信息比特以及ZP CSI-RS资源集合1不承载码字1包括的信息比特。
第二种内容:该第四信息用于指示该第一资源集合和该第二资源集合,以及,用于指示启用该N个码字中的至少一个码字。
在这种情况下,当该第四信息用于指示该第一资源集合和该第二资源集合以及用于指示启用该N个码字中的一个码字时,则该第四信息指示的该第一资源集合和该第二资源集合不承载该被启用的一个码字包括的信息比特。当该第四信息用于指示该第一资源集合和该第二资源集合以及用于指示启用该N个码字中的多个码字时,则该第四信息指示的第一资源集合不承载该被启用的多个码字中的任意一个码字包括的信息比特,且该第四信息指示的第二资源集合不承载该被启用的多个码字中的部分码字包括的信息比特。
例如,第四信息指示ZP CSI-RS资源集合1和ZP CSI-RS资源集合2,以及指示启用码字0,则,ZP CSI-RS资源集合1和ZP CSI-RS资源集合2均不承载码字0包括的信息比特;第四信息指示ZP CSI-RS资源集合1和ZP CSI-RS资源集合2,以及指示启用码字0和码字1,则可以根据预设的规则,确定ZP CSI-RS资源集合1和ZP CSI-RS资源集合2中哪个是第一资源集合以及哪个是第二资源集合,例如,第四信息指示的多个资源集合中的索引号或者编号等标识信息的值最小的资源集合为第一资源集合,第四信息指示的多个资源集合中除第一资源集合外的资源集合为第二资源集合,从而,确定ZP CSI-RS资源集合1为第一资源集合,ZP CSI-RS资源集合2为第二资源集合,则,ZP CSI-RS资源集合1不承载码字0包括的信息比特以及码字1包括的信息比特,ZP CSI-RS资源集合2不承载部分码字包括的信息比特。
在本申请实施例中,发送第四信息可以包括但不限于如下两种方式:
第一发送方式:发送一个DCI,通过该一个DCI中的字段指示该第四信息。
具体来讲,可以通过该DCI中的第四字段指示该第四信息。该第四字段为基站A和终端设备A预先约定的,也可以是由基站A配置的。
在这种情况下,该第四字段用于指示至少一个资源集合以及指示启用该N个码字中的至少一个码字。例如,该第四字段可以包括多个状态值,该多个状态值中的一部分状态值用于指示启用的码字,另一部分状态值用于指示资源集合。具体来讲,以N取2为例,该第四字段可以包括3个比特,前两个比特用于指示启用的码字,当该前两个比特的状态值为“00”时,用于指示启用码字0,当该前两个比特的状态值为“01”时,用于指示启用码字1,当该前两个比特的状态为“10”时,用于指示启用码字0和码字1。该第四字段的最后一个比特用于指示资源集合,该最后一个比特的每一个状态值均可以指示至少一个资源集合,例如,该最后一个比特的状态值为“0”时,用于指示ZP CSI-RS资源集合1和ZP CSI-RS资源集合2,该最后一个比特的状态值为“1”时,用于指示ZP CSI-RS资源集合1。当该最后一个比特指示的资源集合为一个资源集合时,则该最后一个比特指示的该资源集合为第一资源集合,当该最后一个比特指示的资源集合为多个资源集合时,则该最后一个比特指示的资源集合是第一资源集合和第二资源集合。
或者,每个状态值均可以同时用于指示启用码字以及相对应的资源集合。例如,当该DCI指示启用该N个码字中的一个码字时,则该第四字段指示的资源集合不承载被启用的一个码字包括的信息比特,例如,当第四字段的状态值为“00”时,用于指示启用码字0,且指示ZP CSI-RS资源集合1,则ZP CSI-RS资源集合1不承载码字0包括的信息比特。当该DCI指示启用该N个码字中的多个码字时,则该第四字段指示的第一资源集合不承载被启用的多个码字的每一个码字包括的信息比特,且该第四字段指示的第二资源集合不承载该被启用的多个码字中的部分码字包括的信息比特,例如,当第四字段的状态值为“01”时,用于指示启用码字0和码字1,且指示ZP CSI-RS资源集合1和ZP CSI-RS资源集合2,则可以根据预设规则确定ZP CSI-RS资源集合1和ZP CSI-RS资源集合2中哪个资源集合是第一资源集合,该预设的规则可以是判断指示的多个资源集合的索引号的大小,索引号小的资源集合为第一资源集合,索引号大的资源集合为第二资源集合,则ZP CSI-RS资源集合1不承载码字0和码字1包括的信息比特,ZP CSI-RS资源集合2不承载码字1包括的信息比特。
通过该一个DCI中的字段指示该第四信息时,也可以使用两个字段进行指示。该DCI中的第五字段指示该第一资源集合,该DCI中的第六字段用于指示该第二资源集合。其中,该第五字段和第六字段为基站A和终端设备A预先约定的,也可以是由基站A配置的,且第五字段指示的资源集合的作用和第六字段指示的资源集合的作用也可以是基站A和终端设备A预先约定的或者由基站A配置的。
第五字段和第六字段指示资源集合的方式可以与第四字段相同,即可以利用第五字段和第六字段的状态值指示不同的资源集合,在此不再赘述。其中,可以使用第五字段或者第六字段中的一个字段指示启用的至少一个码字,也可以是第五字段和第六字段一起指示启用的码字,例如,第五字段指示启用码字0,第六字段指示启用码字1,则表示基站A启用的码字为码字0和码字1。第五字段和/或第六字段指示启用的至少一个码字的方式与第四字段指示启用的至少一个码字的方式相同,在此不再赘述。
当该DCI指示启用N个码字中的一个码字时,第五字段和第六字段指示的资源集合不 承载该被启用的一个码字包括的信息比特。或者,当DCI指示启用N个码字中的一个码字时,第五字段指示的资源集合不承载该被启用的一个码字包括的信息比特。或者,当DCI指示启用该N个码字中的多个码字时,则第五字段指示的资源集合不承载被启用的多个码字的每一个码字包括的信息比特,且第六字段指示的资源集合不承载该被启用的多个码字中的部分码字包括的信息比特。
第二发送方式:发送两个DCI,通过两个DCI中的字段指示该第四信息。需要说明的是,发送两个DCI可以是基站A将一个DCI的内容发送给基站B,然后由基站B发送。或者,由中心控制器做统一调度后将调度策略发送给基站A和B,然后由基站A和B分别指示DCI。两个DCI具有独立的时频资源配置,和/或具有独立的终端设备盲检测方式,终端设备盲检测方式包括盲检测周期,盲检测的DCI格式,DCI类型(公共的DCI、终端设备特定的DCI),盲检测次数,聚合级别等。
具体来讲,该两个DCI中的第一DCI用于指示该第一资源集合以及用于指示启用该N个码字中的第一码字,该两个DCI中的第二DCI用于指示该第二资源集合以及用于指示启用该N个码字中的第二码字。
在这种情况下,第一DCI的作用和第二DCI的作用可以是基站A和终端设备A之间约定的,也可以是由基站A配置的。第一DCI的作用或第二DCI的作用,可以理解为,第一DCI或第二DCI中指示的资源集合是第一资源集合还是第二资源集合。第一DCI指示第一资源集合或者第二DCI指示第二资源集合的方式与第一种发送方式中通过一个DCI指示资源集合的方式相同,在此不再赘述。
需要说明的是,第一DCI指示的资源集合不承载第一码字和第二码字中的任意一个码字包括的信息比特,第二DCI指示的资源集合不承载第一码字或第二码字包括的信息比特。
另外,当N为大于2时,第一码字可以是N个码字中的M个码字,第二码字可以是N个码字中的K个码字,M、K为小于或等于N的正整数。在这种情况下,第一DCI指示的资源集合不承载该M个码字和该K个码字中的任意一个码字包括的信息比特,且第二DCI指示的资源集合不承载该K个码字中的任意一个码字包括的信息比特。或者,第一DCI指示的资源集合不承载该M个码字和该K个码字中的任意一个码字包括的信息比特,且第二DCI指示的资源集合不承载该M个码字和该K个码字中的部分码字包括的信息比特。例如,若基站A在第一信息中携带第一资源集合的标识信息和N个码字的标识信息,以及在第二信息中携带第二资源集合的标识信息和N个码字中的部分码字的标识信息,该标识信息的含义与步骤802中相同。例如,第一信息中携带码字0、码字1以及码字2的标识信息,第二信息中携带码字0和码字1的标识信息,则当第一DCI指示启用的M个码字为码字0和码字2,第二DCI指示启用的K个码字为码字1,则第二DCI中指示的资源集合不承载码字0和码字1包括的信息比特,也就是说,该第二DCI中指示的资源集合不承载该M个码字和K个码字中的部分码字包括的信息比特。
通过两个DCI中的字段指示该第四信息时,还包括如下情况:
该第二资源集合为第三资源集合中的一个资源集合,可以理解为,该第三资源集合包括N个码字中每个码字的专用资源集合,第二资源集合为其中一部分码字的专用资源集合。例如,N个码字为码字0和码字1,第三资源集合包括码字0的专用资源集合以及码字1的专用资源集合,第二资源集合为码字0的专用资源集合。
在这种情况下,该两个DCI中的第一DCI用于指示该第一资源集合和该第二资源集合, 以及,用于指示启用该N个码字中的第一码字,该两个DCI中的第二DCI用于指示该第三资源集合中除该第二资源集合外的至少一个资源集合以及用于指示启用该N个码字中的第二码字。
需要说明的是,第一DCI指示第一资源集合和第二资源集合的方式与第一种发送方式中,通过一个DCI指示该第四信息的方式相同,在此不再赘述。
在这种情况下,第一DCI指示的第一资源集合不承载第一码字和第二码字中的任意一个码字包括的信息比特,第一DCI指示的第二资源集合和第二DCI中指示的资源集合不承载第一码字和第二码字中的部分码字包括的信息比特。或者,第一DCI指示的第一资源集合和第二资源集合均不承载第一码字和第二码字中任意一个码字包括的信息比特,第二DCI中指示资源不承载第二码字包括的信息比特。
另外,当N为大于2时,第一码字可以是N个码字中的M个码字,第二码字可以是N个码字中的K个码字,M、K为小于或等于N的正整数。则第一DCI指示的第一资源集合不承载该M个码字和该K个码字中任意一个码字包括的信息比特,且第一DCI指示的第二资源集合和第二DCI指示的资源集合不承载该M个码字和该K个码字中的部分码字包括的信息比特。或者,第一DCI指示的第一资源集合和第二资源集合不承载该M个码字和该K个码字中任意一个码字包括的信息比特,且第二DCI指示的资源集合不承载该K个码字包括的信息比特。
另外,在本申请实施例中,该第四信息还用于指示该N个码字的传输模式。
在本申请实施例中,该传输模式包括第一传输模式和第二传输模式,其中,在该第一传输模式中,该N个码字中的信息比特相同,在该第二传输模式中,该N个码字中的信息比特不同。
具体来讲,第一传输模式包括单基站传输模式或基于空间复用的传输(diversity transmission),其中,单基站传输模式为一个终端设备在同一时刻仅能与一个基站通信的传输模式,可以理解为背景技术中介绍的现有技术中的传输模式。diversity传输模式,即,协作集内的两个基站采用不同的传输方式,例如采用不同的预编码方式或者采用不同的发射功率或者采用不同的发送波束等,发送相同的码字。第二传输模式也可以理解为非相干传输(non-coherent joint transmission,NC-JT),即,协作集内的多个基站同时为终端设备传输码字,且多个基站的天线进行独立预编码,即每个基站独立选择最优预编码矩阵进行该基站天线之间的联合相位和幅度加权。
第四信息指示N个码字的传输模式的方式如下:
当该第四信息指示启用码字数量大于1,且仅启用第一资源集合时,或者说,为两个码字启用的资源集合相同时,即指示传输模式为第一传输模式;当该第四信息指示启用码字数量大于1,且同时启用第一资源集合和第二资源集合时,即指示传输模式为第二传输模式。
需要说明的是,第一传输模式包括单基站传输模式和diversity传输模式可以通过DCI中其他字段区分,例如,可以通过DCI中的MCS/新数据指示(new data indicator,NDI)/冗余版本(redundancy version,RV)字段的个数、DM-RS端口指示字段所指示的端口号等确定。例如,何时为单基站传输模式,何时为diversity传输模式。例如,将全部正交的DM-RS端口分为端口集合1和端口集合2,当DM-RS端口指示字段指示了端口集合1时,为单基站传输模式,当DM-RS端口指示字段指示了端口集合1和2时,为diversity传输 模式。当启用的码字数量小于某一个预定义的值时,为单基站传输,当启用的码字数量大于某一个与定义的值时,为diversity传输模式。
步骤904、终端设备A根据第四信息确定该第一资源集合以及启用该N个码字中的至少一个码字,或者,终端设备A根据第四信息确定该第一资源集合和该第二资源集合以及启用该N个码字中的至少一个码字。
当然,若第四信息还用于指示传输模式,则终端设备A在接收该第四信息后,还需要确定该N个码字的传输模式。
终端设备A确定上述内容的方式与步骤903中基站A指示该上述内容的方式为互逆过程,在此不再赘述。
步骤905、基站A指示启用的至少一个资源集合,终端设备确定被启用的至少一个资源集合。
具体来讲,基站A可以通过DCI指示启用的至少一个资源集合。具体指示方式在此不作限制。
步骤906、基站A发送被启用的码字,终端设备A接收被启用的码字。
步骤906与步骤407相同,在此不再赘述。
需要说明的是,若基站A指示了N个码字的传输模式,则对于diversity传输模式和NC-JT传输模式,终端设备A接收被启用的码字的行为不同。具体来讲,对于diversity传输模式,终端设备A会将来自不同基站的码字A进行合并处理然后获取信息比特,并反馈一份混合自动重传请求(hybrid automatic repeat request,HARQ)信息,以通知基站A是否正确接收码字。而对于NC-JT传输模式,终端设备A不会将来自不同基站的码字进行合并,而是分别从各个基站接收的码字中获取信息比特,并分别向各个基站反馈HARQ信息。
上述本申请提供的实施例中,分别从网络设备、终端设备、以及网络设备和终端设备之间交互的角度对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能,网络设备和终端设备可以包括硬件结构和/或软件模块,以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行,取决于技术方案的特定应用和设计约束条件。
图10示出了一种通信装置1000的结构示意图。其中,通信装置1000可以是终端设备,能够实现本申请实施例提供的方法中终端设备的功能;通信装置1000也可以是能够支持终端设备实现本申请实施例提供的方法中终端设备的功能的装置。通信装置1000可以是硬件结构、软件模块、或硬件结构加软件模块。通信装置1000可以由芯片系统实现。本申请实施例中,芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。
通信装置1000可以包括处理模块1001和通信模块1002。
处理模块1001可以用于执行图4所示的实施例中的步骤403以及步骤405,或用于执行图8所示的实施例中的步骤803,或用于执行图9所示的实施例中的步骤904,和/或用于支持本文所描述的技术的其它过程。通信模块1002用于通信装置1000和其它模块进行通信,其可以是电路、器件、接口、总线、软件模块、收发器或者其它任意可以实现通信的装置。
通信模块1002可以用于执行图4所示的实施例中的步骤402、步骤404、步骤406以 及步骤407,或用于执行图8所示的实施例中的步骤802、步骤804~步骤806,或用于执行图9所示的实施例中的步骤902~步骤903以及步骤905~步骤906,和/或用于支持本文所描述的技术的其它过程。
其中,上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述,在此不再赘述。
图11示出了一种通信装置1100的结构示意图。其中,通信装置1100可以是网络设备,能够实现本申请实施例提供的方法中网络设备的功能;通信装置1100也可以是能够支持终端设备实现本申请实施例提供的方法中网络设备的功能的装置。通信装置1100可以是硬件结构、软件模块、或硬件结构加软件模块。通信装置1100可以由芯片系统实现。本申请实施例中,芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。
通信装置1100可以包括处理模块1101和通信模块1102。
处理模块1101可以用于执行图4所示的实施例中的步骤401,或用于执行图8所示的实施例中的步骤801,或用于执行图9所示的实施例中的步骤901,和/或用于支持本文所描述的技术的其它过程。通信模块1102用于通信装置1100和其它模块进行通信,其可以是电路、器件、接口、总线、软件模块、收发器或者其它任意可以实现通信的装置。
通信模块1102可以用于执行图4所示的实施例中的步骤402、步骤404、步骤406以及步骤407,或用于执行图8所示的实施例中的步骤802、步骤804~步骤806,或用于执行图9所示的实施例中的步骤902~步骤903以及步骤905~步骤906,和/或用于支持本文所描述的技术的其它过程。
其中,上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述,在此不再赘述。
本申请实施例中对模块的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,另外,在本申请各个实施例中的各功能模块可以集成在一个处理器中,也可以是单独物理存在,也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。
如图12所示为本申请实施例提供的通信装置1200,其中,通信装置1200可以是图4、图8或图9所示的实施例中的终端设备,能够实现本申请实施例提供的方法中终端设备的功能;通信装置1200也可以是能够支持终端设备实现本申请实施例提供的方法中终端设备的功能的装置。其中,该通信装置1200可以为芯片系统。本申请实施例中,芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。
通信装置1200包括至少一个处理器1220,用于实现或用于支持通信装置1200实现本申请实施例提供的方法中终端设备的功能。示例性地,处理器1220可以根据第一信息及第二信息确定第一资源集合和第二资源集合,具体参见方法示例中的详细描述,此处不做赘述。
通信装置1200还可以包括至少一个存储器1230,用于存储程序指令和/或数据。存储器1230和处理器1220耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接,可以是电性,机械或其它的形式,用于装置、单元或模块之间的信息交互。处理器1220可能和存储器1230协同操作。处理器1220可能执行存储器1230中存储的程序指令。所述至少一个存储器中的至少一个可以包括于处理器中。
通信装置1200还可以包括通信接口1210,用于通过传输介质和其它设备进行通信, 从而用于通信装置1200中的装置可以和其它设备进行通信。示例性地,该其它设备可以是网络设备。处理器1220可以利用通信接口1210收发数据。
本申请实施例中不限定上述通信接口1210、处理器1220以及存储器1230之间的具体连接介质。本申请实施例在图12中以存储器1230、处理器1220以及通信接口1210之间通过总线1240连接,总线在图12中以粗线表示,其它部件之间的连接方式,仅是进行示意性说明,并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示,图12中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。
在本申请实施例中,处理器1220可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件,可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。
在本申请实施例中,存储器1230可以是非易失性存储器,比如硬盘(hard disk drive,HDD)或固态硬盘(solid-state drive,SSD)等,还可以是易失性存储器(volatile memory),例如随机存取存储器(random-access memory,RAM)。存储器是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质,但不限于此。本申请实施例中的存储器还可以是电路或者其它任意能够实现存储功能的装置,用于存储程序指令和/或数据。
如图13所示为本申请实施例提供的通信装置1300,其中,通信装置1300可以是网络设备,能够实现本申请实施例提供的方法中网络设备的功能;通信装置1300也可以是能够支持核心网网元实现本申请实施例提供的方法中网络设备的功能的装置。其中,该通信装置1300可以为芯片系统。本申请实施例中,芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。
通信装置1300包括至少一个处理器1320,用于实现或用于支持通信装置1300实现本申请实施例提供的方法中核心网网元的功能。示例性地,处理器1320可以确定第一资源集合和第二资源集合,具体参见方法示例中的详细描述,此处不做赘述。
通信装置1300还可以包括至少一个存储器1330,用于存储程序指令和/或数据。存储器1330和处理器1320耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接,可以是电性,机械或其它的形式,用于装置、单元或模块之间的信息交互。处理器1320可能和存储器1330协同操作。处理器1320可能执行存储器1330中存储的程序指令。所述至少一个存储器中的至少一个可以包括于处理器中。
通信装置1300还可以包括通信接口1310,用于通过传输介质和其它设备进行通信,从而用于装置1300中的装置可以和其它设备进行通信。示例性地,该其它设备可以是终端设备。处理器1320可以利用通信接口1310收发数据。
本申请实施例中不限定上述通信接口1310、处理器1320以及存储器1330之间的具体连接介质。本申请实施例在图13中以存储器1330、处理器1320以及通信接口1310之间通过总线1340连接,总线在图13中以粗线表示,其它部件之间的连接方式,仅是进行示意性说明,并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示,图13中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。
在本申请实施例中,处理器1320可以是通用处理器、数字信号处理器、专用集成电 路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件,可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。
在本申请实施例中,存储器1330可以是非易失性存储器,比如硬盘(hard disk drive,HDD)或固态硬盘(solid-state drive,SSD)等,还可以是易失性存储器(volatile memory),例如随机存取存储器(random-access memory,RAM)。存储器是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质,但不限于此。本申请实施例中的存储器还可以是电路或者其它任意能够实现存储功能的装置,用于存储程序指令和/或数据。
本申请实施例中还提供一种计算机可读存储介质,包括指令,当其在计算机上运行时,使得计算机执行图4、图8以及图9中任意一个实施例中终端设备执行的方法。
本申请实施例中还提供一种计算机可读存储介质,包括指令,当其在计算机上运行时,使得计算机执行图4、图8以及图9中任意一个实施例中网络设备执行的方法。
本申请实施例中还提供一种计算机程序产品,包括指令,当其在计算机上运行时,使得计算机执行图4、图8以及图9中任意一个实施例中所述终端设备执行的方法。
本申请实施例中还提供一种计算机程序产品,包括指令,当其在计算机上运行时,使得计算机执行图4、图8以及图9中任意一个实施例中所述网络设备执行的方法。
本申请实施例提供了一种芯片系统,该芯片系统包括处理器,还可以包括存储器,用于实现前述方法中终端设备的功能。该芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。
本申请实施例提供了一种芯片系统,该芯片系统包括处理器,还可以包括存储器,用于实现前述方法中网络设备的功能。该芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。
本申请实施例提供了一种系统,所述系统包括前述所述的终端设备和所述网络设备。
本申请实施例提供的方法中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时,全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、网络设备、用户设备或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line,简称DSL)或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机可以存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如,软盘、硬盘、磁带)、光介质(例如,数字视频光盘(digital video disc,简称DVD))、或者半导体介质(例如,SSD)等。
显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本 申请也意图包含这些改动和变型在内。
Claims (62)
- 一种资源配置方法,其特征在于,包括:确定第一资源集合及第二资源集合,所述第一资源集合不承载N个码字中的任意一个码字包括的信息比特,所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特,N为大于或等于2的整数;其中,所述第一资源集合不承载N个码字中的任意一个码字包括的信息比特具体包括:当用于承载所述N个码字中任意一个码字的资源与所述第一资源集合中的任意一个资源元素RE重叠时,在所述重叠的RE上不承载所述N个码字中的任意一个码字包括的信息比特;所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特具体包括:当用于承载所述N个码字中的部分码字的资源与所述第二资源集合中的任意一个RE重叠时,在所述重叠的RE上不承载所述N个码字中的部分码字包括的信息比特;发送第一信息及第二信息,所述第一信息用于指示所述第一资源集合的配置信息,所述第二信息用于指示所述第二资源集合的配置信息。
- 根据权利要求1所述的方法,其特征在于,所述方法还包括:发送第三信息,所述第三信息用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特和/或所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
- 根据权利要求2所述的方法,其特征在于,所述发送第三信息,包括:发送下行控制信息DCI,所述DCI中的第一字段用于指示所述第三信息;其中,所述第一字段的状态值包括以下三种状态值中的至少一种:第一状态值用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特;或第二状态值用于指示所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特;或第三状态值用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特以及所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
- 根据权利要求2所述的方法,其特征在于,所述发送第三信息,包括:发送下行控制信息DCI,所述DCI中的第二字段和第三字段用于指示所述第三信息;其中,所述第二字段用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特;所述第三字段用于指示所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特,或者,所述第三字段用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特以及所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
- 根据权利要求3或4所述的方法,其特征在于,所述第一字段的状态值还用于指示从所述第一资源集合和所述第二资源集合中启用至少一个资源集合;或所述第二字段和/或所述第三字段还用于指示从所述第一资源集合和所述第二资源集合中启用至少一个资源集合。
- 根据权利要求1所述的方法,其特征在于,所述方法还包括:发送第四信息,所述第四信息用于指示所述第一资源集合,以及,所述第四信息还用于指示启用所述N个码字中的至少一个码字;或所述第四信息用于指示所述第一资源集合和所述第二资源集合,以及,所述第四信息还用于指示启用所述N个码字中的至少一个码字。
- 根据权利要求6所述的方法,其特征在于,当所述第四信息用于指示所述第一资源集合以及用于指示启用所述N个码字中的一个码字时,所述第四字段指示的资源集合不承载所述被启用的一个码字包括的信息比特;或当所述第四信息用于指示所述第一资源集合以及用于指示启用所述N个码字中的多个码字时,所述第四信息指示的资源集合不承载所述被启用的多个码字中的任意一个码字包括的信息比特;或当所述第四信息用于指示所述第一资源集合和所述第二资源集合以及用于指示启用所述N个码字中的一个码字时,所述第四信息指示的所述第一资源集合和所述第二资源集合不承载所述被启用的一个码字包括的信息比特;或当所述第四信息用于指示所述第一资源集合和所述第二资源集合以及用于指示启用所述N个码字中的多个码字时,所述第四信息指示的第一资源集合不承载所述被启用的多个码字中的任意一个码字包括的信息比特,且所述第四信息指示的第二资源集合不承载所述被启用的多个码字中的部分码字包括的信息比特,其中,第四信息中指示的第一资源集合和第二资源集合根据预定义的规则确定。
- 根据权利要求6或7所述的方法,其特征在于,所述发送第四信息,包括:发送下行控制信息DCI;所述DCI中的第四字段用于指示所述第四信息;或所述DCI中的第五字段指示所述第一资源集合,所述DCI中的第六字段用于指示所述第二资源集合。
- 根据权利要求6-8中任一项所述的方法,其特征在于,所述发送第四信息,包括:发送第一下行控制信息DCI,所述第一DCI用于指示所述第一资源集合以及用于指示启用所述N个码字中的第一码字;发送第二下行控制信息DCI,所述第二DCI用于指示所述第二资源集合以及用于指示启用所述N个码字中的第二码字。
- 根据权利要求6-8中任一项所述的方法,其特征在于,所述发送第四信息,包括:发送第一下行控制信息DCI,所述第一DCI用于指示所述第一资源集合和所述第二资源集合,以及,所述第一DCI用于指示启用所述N个码字中的第一码字;发送第二下行控制信息DCI,所述第二DCI用于指示第三资源集合中除所述第二资源集合外的至少一个资源集合以及用于指示启用所述N个码字中的第二码字,所述第二资源集合为所述第三资源集合中的一个资源集合。
- 根据权利要求1-10中任一项所述的方法,其特征在于,所述第一信息和所述第二信息为无线资源控制RRC信令或者媒体接入控制控制元素MAC CE信令。
- 根据权利要求6-11中任一项所述的方法,其特征在于,所述第四信息还用于指示所述N个码字的传输模式,所述传输模式包括第一传输模式和第二传输模式,其中,在所述第一传输模式中,所述N个码字中的信息比特相同,在所述第二传输模式中,所述N个 码字中的信息比特不同;当所述第四信息指示启用码字数量大于1,且仅启用第一资源集合时,所述传输模式为第一传输模式;当所述第四信息指示启用码字数量大于1,且同时启用第一资源集合和第二资源集合时,所述传输模式为第二传输模式。
- 根据权利要求1-12中任一项所述的方法,其特征在于,所述第一资源集合或所述第二资源集合中的资源为零功率信道状态信息参考信号ZP CSI-RS。
- 根据权利要求1-12中任一项所述的方法,其特征在于,所述第一资源集合或所述第二资源集合中的资源用于承载小区公共的参考信号。
- 根据权利要求1-12中任一项所述的方法,其特征在于,所述第一资源集合或所述第二资源集合中的资源用于信道估计。
- 一种资源配置方法,其特征在于,包括:接收第一信息及第二信息,所述第一信息用于指示第一资源集合,所述第二信息用于指示第二资源集合,所述第一资源集合不承载N个码字中的任意一个码字包括的信息比特,所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特,N为大于或等于2的整数;其中,所述第一资源集合不承载N个码字中的任意一个码字包括的信息比特具体包括:当用于承载所述N个码字中任意一个码字的资源与所述第一资源集合中的任意一个资源元素RE重叠时,在所述重叠的RE上不承载所述N个码字中的任意一个码字包括的信息比特;所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特具体包括:当用于承载所述N个码字中的部分码字的资源与所述第二资源集合中的任意一个资源RE重叠时,在所述重叠的RE上不承载所述N个码字中的部分码字包括的信息比特;确定所述第一资源集合及所述第二资源集合。
- 根据权利要求16所述的方法,其特征在于,所述方法还包括:接收第三信息,所述第三信息用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特和/或所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
- 根据权利要求17所述的方法,其特征在于,所述接收第三信息,包括:接收下行控制信息DCI,所述DCI中的第一字段用于指示所述第三信息;其中,所述第一字段的状态值包括以下三种状态值中的至少一种:第一状态值用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特;或第二状态值用于指示所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特;或第三状态值用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特以及所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
- 根据权利要求17所述的方法,其特征在于,所述接收第三信息,包括:接收下行控制信息DCI,所述DCI中的第二字段和第三字段用于指示所述第三信息;其中,所述第二字段用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特;所述第三字段用于指示所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特,或者,所述第三字段用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特以及所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
- 根据权利要求18或19所述的方法,其特征在于,所述第一字段的状态值还用于指示从所述第一资源集合和所述第二资源集合中启用至少一个资源集合;或所述第二字段和/或所述第三字段还用于指示从所述第一资源集合和所述第二资源集合中启用至少一个资源集合。
- 根据权利要求16所述的方法,其特征在于,所述方法还包括:接收第四信息,所述第四信息用于指示所述第一资源集合,以及,所述第四信息用于指示启用所述N个码字中的至少一个码字;或所述第四信息用于指示所述第一资源集合和所述第二资源集合,以及,所述第四信息还用于指示启用所述N个码字中的至少一个码字。
- 根据权利要求21所述的方法,其特征在于,当所述第四信息用于指示所述第一资源集合以及用于指示启用所述N个码字中的一个码字时,所述第四字段指示的资源集合不承载所述被启用的一个码字包括的信息比特;或当所述第四信息用于指示所述第一资源集合以及用于指示启用所述N个码字中的多个码字时,所述第四信息指示的资源集合不承载所述被启用的多个码字中的任意一个码字包括的信息比特;或当所述第四信息用于指示所述第一资源集合和所述第二资源集合以及用于指示启用所述N个码字中的一个码字时,所述第四信息指示的所述第一资源集合和所述第二资源集合不承载所述被启用的一个码字包括的信息比特;或当所述第四信息用于指示所述第一资源集合和所述第二资源集合以及用于指示启用所述N个码字中的多个码字时,所述第四信息指示的第一资源集合不承载所述被启用的多个码字中的任意一个码字包括的信息比特,且所述第四信息指示的第二资源集合不承载所述被启用的多个码字中的部分码字包括的信息比特,其中,第四信息中指示的第一资源集合和第二资源集合根据预定义的规则确定。
- 根据权利要求21或22所述的方法,其特征在于,所述接收第四信息,包括:接收下行控制信息DCI;所述DCI中的第四字段用于指示所述第四信息;或所述DCI中的第五字段指示所述第一资源集合,所述DCI中的第六字段用于指示所述第二资源集合。
- 根据权利要求21-23中任一项所述的方法,其特征在于,所述接收第四信息,包括:接收第一下行控制信息DCI,所述第一DCI用于指示所述第一资源集合以及用于指示启用所述N个码字中的第一码字;接收第二下行控制信息DCI,所述第二DCI用于指示所述第二资源集合以及用于指示启用所述N个码字中的第二码字。
- 根据权利要求21-23中任一项所述的方法,其特征在于,所述接收第四信息,包 括:接收第一下行控制信息DCI,所述第一DCI用于指示所述第一资源集合和所述第二资源集合,以及,所述第一DCI用于指示启用所述N个码字中的第一码字;接收第二下行控制信息DCI,所述第二DCI用于指示第三资源集合中除所述第二资源集合外的至少一个资源集合以及用于指示启用所述N个码字中的第二码字,所述第二资源集合为所述第三资源集合中的一个资源集合。
- 根据权利要求16-25中任一项所述的方法,其特征在于,所述第一信息和所述第二信息为无线资源控制RRC信令或者媒体接入控制控制元素MAC CE信令。
- 根据权利要求21-26中任一项所述的方法,其特征在于,所述第四信息还用于指示所述N个码字的传输模式,所述传输模式包括第一传输模式和第二传输模式,其中,在所述第一传输模式中,所述N个码字中的信息比特相同,在所述第二传输模式中,所述N个码字中的信息比特不同;当所述第四信息指示启用码字数量大于1,且仅启用第一资源集合时,所述传输模式为第一传输模式;当所述第四信息指示启用码字数量大于1,且同时启用第一资源集合和第二资源集合时,所述传输模式为第二传输模式。
- 根据权利要求16-27中任一项所述的方法,其特征在于,所述第一资源集合或所述第二资源集合中的资源为零功率信道状态信息参考信号ZP CSI-RS。
- 根据权利要求16-27中任一项所述的方法,其特征在于,所述第一资源集合或所述第二资源集合中的资源用于承载小区公共的参考信号。
- 根据权利要求16-27中任一项所述的方法,其特征在于,所述第一资源集合或所述第二资源集合中的资源用于信道估计。
- 一种通信装置,其特征在于,包括处理器和通信接口,其中:所述处理器,用于确定第一资源集合及第二资源集合,所述第一资源集合不承载N个码字中的任意一个码字包括的信息比特,所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特,N为大于或等于2的整数;其中,所述第一资源集合不承载N个码字中的任意一个码字包括的信息比特具体包括:当用于承载所述N个码字中任意一个码字的资源与所述第一资源集合中的任意一个资源元素RE重叠时,在所述重叠的RE上不承载所述N个码字中的任意一个码字包括的信息比特;所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特具体包括:当用于承载所述N个码字中的部分码字的资源与所述第二资源集合中的任意一个RE重叠时,在所述重叠的RE上不承载所述N个码字中的部分码字包括的信息比特;所述通信接口,用于发送第一信息及第二信息,所述第一信息用于指示所述第一资源集合的配置信息,所述第二信息用于指示所述第二资源集合的配置信息。
- 根据权利要求31所述的装置,其特征在于,所述通信接口还用于:发送第三信息,所述第三信息用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特和/或所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
- 根据权利要求32所述的装置,其特征在于,所述通信接口用于:发送下行控制信息DCI,所述DCI中的第一字段用于指示所述第三信息;其中,所述第一字段的状态值包括以下三种状态值中的至少一种:第一状态值用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特;或第二状态值用于指示所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特;或第三状态值用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特以及所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
- 根据权利要求32所述的装置,其特征在于,所述通信接口用于:发送下行控制信息DCI,所述DCI中的第二字段和第三字段用于指示所述第三信息;其中,所述第二字段用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特;所述第三字段用于指示所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特,或者,所述第三字段用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特以及所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
- 根据权利要求33或34所述的装置,其特征在于,所述第一字段的状态值还用于指示从所述第一资源集合和所述第二资源集合中启用至少一个资源集合;或所述第二字段和/或所述第三字段还用于指示从所述第一资源集合和所述第二资源集合中启用至少一个资源集合。
- 根据权利要求31所述的装置,其特征在于,所述通信接口还用于:发送第四信息,所述第四信息用于指示所述第一资源集合,以及,所述第四信息还用于指示启用所述N个码字中的至少一个码字;或所述第四信息用于指示所述第一资源集合和所述第二资源集合,以及,所述第四信息还用于指示启用所述N个码字中的至少一个码字。
- 根据权利要求36所述的装置,其特征在于,当所述第四信息用于指示所述第一资源集合以及用于指示启用所述N个码字中的一个码字时,所述第四字段指示的资源集合不承载所述被启用的一个码字包括的信息比特;或当所述第四信息用于指示所述第一资源集合以及用于指示启用所述N个码字中的多个码字时,所述第四信息指示的资源集合不承载所述被启用的多个码字中的任意一个码字包括的信息比特;或当所述第四信息用于指示所述第一资源集合和所述第二资源集合以及用于指示启用所述N个码字中的一个码字时,所述第四信息指示的所述第一资源集合和所述第二资源集合不承载所述被启用的一个码字包括的信息比特;或当所述第四信息用于指示所述第一资源集合和所述第二资源集合以及用于指示启用所述N个码字中的多个码字时,所述第四信息指示的第一资源集合不承载所述被启用的多个码字中的任意一个码字包括的信息比特,且所述第四信息指示的第二资源集合不承载所述被启用的多个码字中的部分码字包括的信息比特,其中,第四信息中指示的第一资源集合和第二资源集合根据预定义的规则确定。
- 根据权利要求36或37所述的装置,其特征在于,所述通信接口用于:发送下行控制信息DCI;所述DCI中的第四字段用于指示所述第四信息;或所述DCI中的第五字段指示所述第一资源集合,所述DCI中的第六字段用于指示所述第二资源集合。
- 根据权利要求36-38中任一项所述的装置,其特征在于,所述通信接口用于:发送第一下行控制信息DCI,所述第一DCI用于指示所述第一资源集合以及用于指示启用所述N个码字中的第一码字;发送第二下行控制信息DCI,所述第二DCI用于指示所述第二资源集合以及用于指示启用所述N个码字中的第二码字。
- 根据权利要求36-38中任一项所述的装置,其特征在于,所述通信接口用于:发送第一下行控制信息DCI,所述第一DCI用于指示所述第一资源集合和所述第二资源集合,以及,所述第一DCI用于指示启用所述N个码字中的第一码字;发送第二下行控制信息DCI,所述第二DCI用于指示第三资源集合中除所述第二资源集合外的至少一个资源集合以及用于指示启用所述N个码字中的第二码字,所述第二资源集合为所述第三资源集合中的一个资源集合。
- 根据权利要求31-40中任一项所述的装置,其特征在于,所述第一信息和所述第二信息为无线资源控制RRC信令或者媒体接入控制控制元素MAC CE信令。
- 根据权利要求36-41中任一项所述的装置,其特征在于,所述第四信息还用于指示所述N个码字的传输模式,所述传输模式包括第一传输模式和第二传输模式,其中,在所述第一传输模式中,所述N个码字中的信息比特相同,在所述第二传输模式中,所述N个码字中的信息比特不同;当所述第四信息指示启用码字数量大于1,且仅启用第一资源集合时,所述传输模式为第一传输模式;当所述第四信息指示启用码字数量大于1,且同时启用第一资源集合和第二资源集合时,所述传输模式为第二传输模式。
- 根据权利要求31-42中任一项所述的装置,其特征在于,所述第一资源集合或所述第二资源集合中的资源为零功率信道状态信息参考信号ZP CSI-RS。
- 根据权利要求31-42中任一项所述的装置,其特征在于,所述第一资源集合或所述第二资源集合中的资源用于承载小区公共的参考信号。
- 根据权利要求31-42中任一项所述的装置,其特征在于,所述第一资源集合或所述第二资源集合中的资源用于信道估计。
- 一种通信装置,其特征在于,包括处理器和通信接口,其中:所述通信接口,用于接收第一信息及第二信息,所述第一信息用于指示第一资源集合,所述第二信息用于指示第二资源集合,所述第一资源集合不承载N个码字中的任意一个码字包括的信息比特,所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特,N为大于或等于2的整数;其中,所述第一资源集合不承载N个码字中的任意一个码字包括的信息比特具体包括:当用于承载所述N个码字中任意一个码字的资源与所述第一资源集合中的任意一个资源元素RE重叠时,在所述重叠的RE上不承载所述N个码字中的任意一个码字包括的信息比特;所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特具体包括:当用 于承载所述N个码字中的部分码字的资源与所述第二资源集合中的任意一个资源RE重叠时,在所述重叠的RE上不承载所述N个码字中的部分码字包括的信息比特;所述处理器,用于确定所述第一资源集合及所述第二资源集合。
- 根据权利要求46所述的装置,其特征在于,所述通信接口用于:接收第三信息,所述第三信息用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特和/或所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
- 根据权利要求47所述的装置,其特征在于,所述通信接口用于:接收下行控制信息DCI,所述DCI中的第一字段用于指示所述第三信息;其中,所述第一字段的状态值包括以下三种状态值中的至少一种:第一状态值用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特;或第二状态值用于指示所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特;或第三状态值用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特以及所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
- 根据权利要求47所述的装置,其特征在于,所述通信接口用于:接收下行控制信息DCI,所述DCI中的第二字段和第三字段用于指示所述第三信息;其中,所述第二字段用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特;所述第三字段用于指示所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特,或者,所述第三字段用于指示所述第一资源集合不承载所述N个码字中的任意一个码字包括的信息比特以及所述第二资源集合不承载所述N个码字中的部分码字包括的信息比特。
- 根据权利要求48或49所述的装置,其特征在于,所述第一字段的状态值还用于指示从所述第一资源集合和所述第二资源集合中启用至少一个资源集合;或所述第二字段和/或所述第三字段还用于指示从所述第一资源集合和所述第二资源集合中启用至少一个资源集合。
- 根据权利要求46所述的装置,其特征在于,所述通信接口还用于:接收第四信息,所述第四信息用于指示所述第一资源集合,以及,所述第四信息用于指示启用所述N个码字中的至少一个码字;或所述第四信息用于指示所述第一资源集合和所述第二资源集合,以及,所述第四信息还用于指示启用所述N个码字中的至少一个码字。
- 根据权利要求51所述的装置,其特征在于,当所述第四信息用于指示所述第一资源集合以及用于指示启用所述N个码字中的一个码字时,所述第四字段指示的资源集合不承载所述被启用的一个码字包括的信息比特;或当所述第四信息用于指示所述第一资源集合以及用于指示启用所述N个码字中的多个码字时,所述第四信息指示的资源集合不承载所述被启用的多个码字中的任意一个码字包括的信息比特;或当所述第四信息用于指示所述第一资源集合和所述第二资源集合以及用于指示启用所述N个码字中的一个码字时,所述第四信息指示的所述第一资源集合和所述第二资源集合不承载所述被启用的一个码字包括的信息比特;或当所述第四信息用于指示所述第一资源集合和所述第二资源集合以及用于指示启用所述N个码字中的多个码字时,所述第四信息指示的第一资源集合不承载所述被启用的多个码字中的任意一个码字包括的信息比特,且所述第四信息指示的第二资源集合不承载所述被启用的多个码字中的部分码字包括的信息比特,其中,第四信息中指示的第一资源集合和第二资源集合根据预定义的规则确定。
- 根据权利要求51或52所述的装置,其特征在于,所述通信接口用于:接收下行控制信息DCI;所述DCI中的第四字段用于指示所述第四信息;或所述DCI中的第五字段指示所述第一资源集合,所述DCI中的第六字段用于指示所述第二资源集合。
- 根据权利要求51-53中任一项所述的装置,其特征在于,所述通信接口用于:接收第一下行控制信息DCI,所述第一DCI用于指示所述第一资源集合以及用于指示启用所述N个码字中的第一码字;接收第二下行控制信息DCI,所述第二DCI用于指示所述第二资源集合以及用于指示启用所述N个码字中的第二码字。
- 根据权利要求51-53中任一项所述的装置,其特征在于,所述通信接口用于:接收第一下行控制信息DCI,所述第一DCI用于指示所述第一资源集合和所述第二资源集合,以及,所述第一DCI用于指示启用所述N个码字中的第一码字;接收第二下行控制信息DCI,所述第二DCI用于指示第三资源集合中除所述第二资源集合外的至少一个资源集合以及用于指示启用所述N个码字中的第二码字,所述第二资源集合为所述第三资源集合中的一个资源集合。
- 根据权利要求46-55中任一项所述的装置,其特征在于,所述第一信息和所述第二信息为无线资源控制RRC信令或者媒体接入控制控制元素MAC CE信令。
- 根据权利要求51-56中任一项所述的装置,其特征在于,所述第四信息还用于指示所述N个码字的传输模式,所述传输模式包括第一传输模式和第二传输模式,其中,在所述第一传输模式中,所述N个码字中的信息比特相同,在所述第二传输模式中,所述N个码字中的信息比特不同;当所述第四信息指示启用码字数量大于1,且仅启用第一资源集合时,所述传输模式为第一传输模式;当所述第四信息指示启用码字数量大于1,且同时启用第一资源集合和第二资源集合时,所述传输模式为第二传输模式。
- 根据权利要求46-57中任一项所述的装置,其特征在于,所述第一资源集合或所述第二资源集合中的资源为零功率信道状态信息参考信号ZP CSI-RS。
- 根据权利要求46-57中任一项所述的装置,其特征在于,所述第一资源集合或所述第二资源集合中的资源用于承载小区公共的参考信号。
- 根据权利要求46-57中任一项所述的装置,其特征在于,所述第一资源集合或所述第二资源集合中的资源用于信道估计。
- 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质存储有计算机程序,所述计算机程序包括程序指令,所述程序指令当被计算机执行时,使所述计算机执行如权利要求1-15或16-30中任意一项所述的方法。
- 一种计算机程序产品,其特征在于,所述计算机程序产品存储有计算机程序,所述计算机程序包括程序指令,所述程序指令当被计算机执行时,使所述计算机执行如权利要求1-15或16-30中任意一项所述的方法。
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