WO2021121177A1 - Dmrs端口指示的方法及设备 - Google Patents
Dmrs端口指示的方法及设备 Download PDFInfo
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- WO2021121177A1 WO2021121177A1 PCT/CN2020/136067 CN2020136067W WO2021121177A1 WO 2021121177 A1 WO2021121177 A1 WO 2021121177A1 CN 2020136067 W CN2020136067 W CN 2020136067W WO 2021121177 A1 WO2021121177 A1 WO 2021121177A1
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- dci format
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- antenna port
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- dmrs port
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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
-
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
Definitions
- the embodiment of the present invention relates to the field of communication technology, and in particular to a method and device for port indication of a demodulation reference signal (Demodulation Reference Signal, DMRS).
- DMRS Demodulation Reference Signal
- the existing protocol stipulates that the terminal (for example, user equipment (UE)) does not expect to receive the downlink control information (Downlink Control Information, DCI) format (format) before obtaining the radio resource control (Radio Resource Control, RRC) configuration. -1.
- DCI Downlink Control Information
- RRC Radio Resource Control
- the specific DMRS port is determined according to the bit indication of the antenna ports.
- the DMRS port 0 (port 0) used by the UE, and the DMRS is a single symbol front-loaded type 1 (single symbol front-loaded DM- RS of configuration type 1).
- the UE can only use a single port (DMRS port 0) for data transmission by default, and a single port (DMRS port 0) cannot support the UE for uplink multi-user (Multi-User, MU) transmission.
- DMRS port 0 a single port for data transmission by default
- Multi-User, MU uplink multi-user
- An object of the embodiments of the present invention is to provide a method and device for DMRS port indication, to solve the problem that when only DCI format 0-0 scheduling data is supported, the terminal can only use a single port for data transmission by default.
- an embodiment of the present invention provides a DMRS port indication method, which is applied to a terminal, and includes:
- the radio resource control RRC signaling Before receiving the radio resource control RRC signaling, receive first information, where the first information indicates the DMRS port of the terminal.
- an embodiment of the present invention provides a DMRS port indication method, which is applied to a network device, and includes:
- an embodiment of the present invention provides a terminal, including:
- the first receiving module is configured to receive first information before receiving radio resource control RRC signaling, where the first information indicates the DMRS port of the terminal.
- an embodiment of the present invention provides a network device, including:
- the first sending module is configured to send first information before sending RRC signaling, where the first information indicates the DMRS port of the terminal.
- an embodiment of the present invention provides a communication device, including: a processor, a memory, and a program stored on the memory and running on the processor, which is implemented when the program is executed by the processor It includes the steps of the DMRS port indication method as described in the first aspect or the second aspect.
- an embodiment of the present invention provides a computer-readable storage medium with a computer program stored on the computer-readable storage medium.
- the implementation includes as described in the first aspect or the second aspect. The steps of the DMRS port indication method described above.
- the network before receiving RRC signaling (for example, when only DCI format 0-0 scheduling data is supported), the network can designate the DMRS port to realize multi-stream transmission and/or multi-user transmission.
- Figure 1 is a schematic diagram of the architecture of a wireless communication system according to an embodiment of the present invention.
- FIG. 2 is one of the flowcharts of the DMRS port indication method according to the embodiment of the present invention.
- FIG. 3 is the second flowchart of the method for DMRS port indication according to an embodiment of the present invention.
- Figure 4 is a schematic diagram of a terminal according to an embodiment of the present invention.
- Figure 5 is a schematic diagram of a network device according to an embodiment of the present invention.
- Fig. 6 is a schematic diagram of a communication device according to an embodiment of the present invention.
- Cell RNTI Cell RNTI
- C-RNTI Cell Radio network temporary identification
- configuration scheduling RNTI Configured Scheduling RNTI, CS-RNTI
- modulation coding strategy cell radio network temporary identification Modulation Coding Scheme Cell RNTI, MCS-C-RNTI
- DCI format of scrambled cyclic redundancy check Cyclic redundancy check, CRC
- Cyclic redundancy check, CRC Cyclic redundancy check
- TPC command for scheduled PUSCH TPC command for scheduled PUSCH
- Uplink or supplementary uplink indicator (UL/SUL indicator).
- the DCI format of the CRC scrambled by the temporary cell radio network identity (Temporary Cell Radio Network Identity, TC-RNTI) 0-0 (DCI format 0-0 with CRC scrambled by TC-RNTI (temporary C-RNTI) ):
- BWP indicator Bandwidth part indicator
- the first downlink assignment index (1st downlink assignment index);
- SRS resource indicator SRS resource indicator
- SRS request SRS request
- CBG transmission information (CBG transmission information)
- Uplink channel indicator (UL-SCH indicator);
- words such as “exemplary” or “for example” are used to represent examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present invention should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as “exemplary” or “for example” are used to present related concepts in a specific manner.
- LTE Long Time Evolution
- LTE-A Long Time Evolution
- CDMA Code Division Multiple Access
- TDMA Time Division Multiple Access
- FDMA Frequency Division Multiple Access
- OFDMA Orthogonal Frequency Division Multiple Access
- SC-FDMA Single Carrier Frequency Single-carrier Frequency-Division Multiple Access
- the terms “system” and “network” are often used interchangeably.
- the CDMA system can implement radio technologies such as CDMA2000 and Universal Terrestrial Radio Access (UTRA).
- UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variants.
- the TDMA system can implement radio technologies such as the Global System for Mobile Communication (GSM).
- OFDMA system can realize such as Ultra Mobile Broadband (UMB), Evolved UTRA (Evolution-UTRA, E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. Radio technology.
- UMB Ultra Mobile Broadband
- Evolution-UTRA Evolved UTRA
- E-UTRA IEEE 802.11
- WiMAX IEEE 802.16
- IEEE 802.20 Flash-OFDM
- Flash-OFDM Flash-OFDM
- LTE and more advanced LTE are new UMTS versions that use E-UTRA.
- UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project” (3GPP).
- CDMA2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2" (3GPP2).
- the techniques described in this article can be used for the systems and radio technologies mentioned above, as well as other systems and radio technologies.
- FIG. 1 it is a schematic diagram of the architecture of a wireless communication system according to an embodiment of the present invention.
- the wireless communication system may include: a network device 11 and a terminal 12.
- the terminal 12 may be denoted as a UE 12, and the terminal 12 may communicate with the network device 11 (transmit signaling or data).
- the connection between the above-mentioned various devices may be a wireless connection.
- a solid line is used in FIG.
- the network device 11 provided in the embodiment of the present invention may be a base station, which may be a commonly used base station, an evolved node base station (eNB), or a network device in a 5G system (for example, the following Equipment such as next generation node base station (gNB) or transmission and reception point (TRP)).
- eNB evolved node base station
- 5G system for example, the following Equipment such as next generation node base station (gNB) or transmission and reception point (TRP)).
- gNB next generation node base station
- TRP transmission and reception point
- the terminal 12 provided in the embodiment of the present invention may be a mobile phone, a tablet computer, a notebook computer, an Ultra-Mobile Personal Computer (UMPC), a netbook or a Personal Digital Assistant (PDA), a mobile Internet device (Mobile Internet Device (MID), Wearable Device (Wearable Device), or in-vehicle equipment, etc.
- UMPC Ultra-Mobile Personal Computer
- PDA Personal Digital Assistant
- MID Mobile Internet Device
- Wearable Device Wearable Device
- in-vehicle equipment etc.
- an embodiment of the present invention provides a method for DMRS port indication.
- the method may be executed by a terminal, and includes: step 201.
- Step 201 Before receiving radio resource control RRC signaling, receive first information, where the first information indicates the DMRS port of the terminal.
- the first information indicates a DMRS port for the terminal to perform uplink multi-user transmission or single-user transmission.
- the RRC signaling includes an information element (IE) indicating antenna port table parameters.
- IE information element
- the step of receiving the RRC signaling includes at least one of the following:
- step 201 may be implemented in the following manner: receiving a DCI in a first DCI format, where the first format indicates the DMRS port of the terminal.
- the first DCI format includes one or more of the following:
- Antenna port (Antenna) field where the antenna port field indicates the DMRS port index value of the terminal;
- the Repetition field indicates the antenna port table parameter number and/or the antenna port table number, further, the antenna port table parameter number corresponds to the antenna port table number one to one;
- antenna port table parameter numbers and/or antenna port table numbers are optionally indicated.
- the above-mentioned other domains refer to domains other than at least part of the domain, antenna port domain, and repetition domain in DCI format 0-0. Further, the other domains can be set to default values, or at least part of the other domains can be set Into the default value.
- the first DCI format includes at least all fields in DCI format 0-0.
- the domain in DCI format 0-0 may include one or more of the following (1) to (11):
- Identifier for DCI format (identifier for DCI format);
- TPC command for scheduled PUSCH TPC command for scheduled PUSCH
- Uplink or supplementary uplink indicator (UL/SUL indicator).
- the indication manner of the domains where the first DCI format is the same as the DCI format 0-0 follows the first DCI format, and the terminal demodulates the corresponding DCI according to the first DCI format.
- the antenna port table parameters may include any of the following (1) to (18):
- the antenna port table parameter numbers can be represented by the above (1) to (18), and the antenna port table numbers can be represented by the above tables 1 to 18, but of course it is not limited thereto.
- the antenna port table includes but is not limited to the above-mentioned Table 1 to Table 18, or it may be a new antenna port table agreed by the protocol.
- the parameters in the new antenna port table are not Make specific restrictions.
- step 201 can be implemented in the following manner:
- a message 4 (Msg4) is received, where the Msg4 indicates the index value of the DMRS port of the terminal.
- the above-mentioned Msg4 is the Msg4 sent by the base station to the terminal before the RRC connection is established, and the Msg4 carries a contention resolution identification (ID).
- the above-mentioned first DCI format may be any one of:
- DCI format 0-2 mainly used for ultra-reliable and low latency communications (Ultra-Reliable and Low Latency Communications, URLLC) transmission, but the protocol is not restricted, which is equivalent to the simplified version of DCI format 0-1;
- Newly defined DCI format for example: newly defined DCI format 0-0x. It is understandable that there is no limitation on the form of newly defined DCI format.
- the first DCI format has a fixed bit overhead, for example: 1 bit or 2 bits.
- the method further includes: if the beam information after beam training is not obtained, transmitting through the monitored synchronization signal block (Synchronization Signal and PBCH block, SSB) beam.
- the monitored synchronization signal block Synchronization Signal and PBCH block, SSB
- the monitored SSB beam receive the physical downlink control channel (Physical Downlink Control Channel, PDCCH) carrying the first information (for example, the DCI of the first DCI format); or send the physical uplink shared channel scheduled by the first information ( Physical Uplink Shared Channel, PUSCH).
- PDCCH Physical Downlink Control Channel
- PUSCH Physical Uplink Shared Channel
- the DCI of the second DCI format is received, and the second DCI format is DCI format 0-0, that is, the network side can use DCI format 0-0 for scheduling first, and then pass the first DCI format.
- Information scheduling is performed before step 201, the DCI of the second DCI format is received, and the second DCI format is DCI format 0-0, that is, the network side can use DCI format 0-0 for scheduling first, and then pass the first DCI format. Information scheduling.
- the network before receiving RRC signaling (for example, when only DCI format 0-0 scheduling data is supported), the network can designate the DMRS port to realize multi-stream transmission and/or multi-user transmission.
- an embodiment of the present invention also provides a method for DMRS port indication.
- the method is executed by a network device and includes: step 301.
- Step 301 Before sending the RRC signaling, send first information, where the first information indicates the DMRS port of the terminal.
- the sending of RRC signaling includes at least one of the following:
- step 301 may be implemented in the following manner: sending a DCI of a first DCI format, where the first DCI format indicates the DMRS port of the terminal.
- the first DCI format includes one or more of the following:
- Antenna port (Antenna) field where the antenna port field indicates the DMRS port index value of the terminal;
- the Repetition field indicates the antenna port table parameter number and/or the antenna port table number, further, the antenna port table parameter number corresponds to the antenna port table number one to one;
- antenna port table parameter numbers and/or antenna port table numbers are optionally indicated.
- the other domains mentioned above refer to domains other than the domains in DCI format 0-0, the antenna port domain, and the repeat domain. Further, the other domains can be set to default values, or at least part of the other domains can be set to defaults. value.
- the antenna port table parameters may include any one of the antenna port table parameters (1) to (18) described in the terminal-side embodiment:
- the antenna port table parameter numbers can be represented by the above (1) to (18), and the antenna port table numbers can be represented by the above Table 1 to Table 18, and of course it is not limited thereto.
- the antenna port table includes, but is not limited to, Tables 1 to 18 described in the terminal-side embodiment, or it may also be a new antenna port table agreed by the protocol.
- the new antenna port table The parameters in are not specifically limited.
- the above-mentioned first DCI format can be any one: (1) DCI format 0-1; (2) DCI format 0-2; (3) Newly defined DCI format, for example: newly defined DCI format 0-0x.
- the DCI of the second DCI format is sent, and the second DCI format is DCI format 0-0, that is, the network side can use DCI format 0-0 for scheduling first, and then pass the first DCI format.
- Information scheduling is not limited to, the DCI format 0-0, that is, the network side.
- step 301 can be implemented in the following manner: sending Msg4, where the Msg4 indicates the index value of the DMRS port of the terminal.
- the network before receiving RRC signaling (for example, when only DCI format 0-0 scheduling data is supported), the network can designate the DMRS port to realize multi-stream transmission and/or multi-user transmission.
- Example 1 The following describes the DMRS port enhancement indication solution in the embodiment of the present invention in conjunction with Example 1, Example 2 and Example 3.
- DCI format 0-1 or 0-2 scheduling data is supported.
- all fields in DCI format 0-0 are reserved in DCI format 0-1 or 0-2.
- DCI format 0-1 or 0-2 and DCI format 0-0 are the same as DCI format 0-0.
- the indication mode of the domain follows DCI format 0-1 or 0-2, and the terminal demodulates the downlink according to DCI format 0-1 or 0-2. Control information.
- Antenna ports are additionally reserved to indicate the terminal DMRS port index value.
- a default antenna port table (for example, Table 1 to Table 18) can be used, where the antenna port table corresponds to the parameters of the antenna port table one-to-one.
- the antenna port table parameters may include any one of (1) to (18) described above.
- the antenna port table parameter numbers can be represented by (1) to (18), and the antenna port table numbers can be represented by Table 1 to Table 18 described above, but of course it is not limited to this.
- the antenna port table parameter number can be directly used to indicate the antenna port table parameter number through the current DCI signaling (DCI format 0-1 or 0-2 DCI); or The antenna port table number directly indicates the antenna port table number through the current DCI signaling.
- the DCI signaling may use domains other than the DCI format 0-0 and the Antenna ports domain to indicate antenna port table parameter numbers and/or antenna port table numbers.
- DCI format 0-1 or 0-2 includes all fields in DCI format 0-0 as described above, plus a repetition (Repetition) field, at least one of these fields
- the field indicates the antenna port table parameter number.
- the antenna port table in this example includes but is not limited to the above-mentioned Table 1 to Table 18, and may also be a new antenna port table agreed by the protocol.
- the monitored SSB beam is used for transmission.
- DCI format 0-1 or 0-2 has a fixed bit overhead, for example, 1bit or 2bit.
- the DCI format 0-1 or 0-2 can be used to designate the DMRS port, thereby realizing multi-stream transmission and/or multi-user transmission.
- the use of newly defined DCI format scheduling data is supported, such as the new DCI format 0-0x, which is of course not limited to this.
- all fields in DCI format 0-0 are reserved in DCI format 0-0x.
- the DCI format 0-0x adds the Antenna ports field to indicate the terminal DMRS port index value.
- a default antenna port table (for example, Table 1 to Table 18) can be used, where the antenna port table corresponds to the parameters of the antenna port table one-to-one.
- the antenna port table parameters may include any of the following (1) to (18):
- the antenna port table parameter numbers can be represented by the above (1) to (18), and the antenna port table numbers can be represented by the above Table 1 to Table 18, but of course it is not limited to this.
- the antenna port table parameter number can be directly used to indicate the antenna port table parameter number through the current DCI signaling (DCI format 0-0x); or the antenna port table number , Directly indicate the antenna port table number through the current DCI signaling.
- the DCI format 0-0x includes a field indicating the antenna port table parameter table.
- the antenna port table in this example includes but is not limited to the above-mentioned Table 1 to Table 18, or it can also be a new antenna port table agreed by the protocol.
- the new antenna port table The parameters are not specifically limited.
- the monitored SSB beam is used for transmission.
- DCI format 0-0x has a fixed bit overhead, for example, 1bit or 2bit.
- the DMRS port when only DCI format 0-0 scheduling data is supported, the DMRS port can be specified through DCI format 0-0x, thereby realizing multi-stream transmission and/or multi-user transmission.
- Msg4 is supported to indicate the corresponding DMRS port index value of the terminal.
- the antenna port table in this example includes but is not limited to the above-mentioned Table 1 to Table 18, and may also be a new antenna port table agreed by the protocol.
- the DMRS port when only DCI format 0-0 scheduling data is supported, the DMRS port can be designated by Msg4, thereby realizing multi-stream transmission and/or multi-user transmission.
- an embodiment of the present invention also provides a terminal, and the terminal 400 includes:
- the first receiving module 401 is configured to receive first information before receiving RRC signaling, where the first information indicates the DMRS port of the terminal.
- the step of receiving the RRC signaling includes at least one of the following:
- the first receiving module 401 is further configured to: receive the DCI of the first DCI format, where the first DCI format indicates the DMRS port of the terminal.
- the first DCI format includes one or more of the following:
- Antenna domain where the Antenna domain indicates the DMRS port index value of the terminal
- antenna port table parameter numbers and/or antenna port table numbers are optionally indicated.
- the above-mentioned other domains refer to domains other than at least part of the domain, antenna port domain, and repetition domain in DCI format 0-0. Further, the other domains can be set to default values, or at least part of the other domains can be set Into the default value.
- the terminal 400 further includes: a second receiving module, configured to receive DCI of a second DCI format, where the second DCI format is DCI format 0-0.
- the first DCI format is any one of the following: (1) DCI format 0-1; (2) DCI format 0-2; (3) newly defined DCI format, for example: newly defined DCI format 0-0x.
- the first DCI format has a fixed bit overhead, such as 1 bit, 2 bits, and so on.
- the first receiving module 401 is further configured to receive Msg4, where the Msg4 indicates the index value of the DMRS port of the terminal.
- the terminal 400 further includes: a transmission module, configured to perform transmission through the monitored SSB beam if the beam information after beam training is not obtained.
- the transmission module is further configured to: receive the PDCCH carrying the first information through the monitored SSB beam; or, send the PUSCH scheduled by the first information through the monitored SSB beam.
- the terminal provided in the embodiment of the present invention can execute the method embodiment shown in FIG. 2 above, and its implementation principles and technical effects are similar, and details are not described herein again in this embodiment.
- an embodiment of the present invention also provides a network device, and the network device 500 includes:
- the first sending module 501 is configured to send first information before sending RRC signaling, where the first information indicates the DMRS port of the terminal.
- the sending of RRC signaling includes at least one of the following:
- the first sending module 501 is further configured to send the DCI of the first DCI format, where the first DCI format indicates the DMRS port of the terminal.
- the first DCI format includes one or more of the following:
- Antenna port (Antenna) field where the antenna port field indicates the DMRS port index value of the terminal;
- the Repetition field indicates the antenna port table parameter number and/or the antenna port table number, further, the antenna port table parameter number corresponds to the antenna port table number one to one;
- antenna port table parameter numbers and/or antenna port table numbers are optionally indicated.
- the above-mentioned other domains refer to domains other than at least part of the domain, antenna port domain, and repetition domain in DCI format 0-0. Further, the other domains can be set to default values, or at least part of the other domains can be set Into the default value.
- the first DCI format is any one of the following: (1) DCI format 0-1; (2) DCI format 0-2; (3) newly defined DCI format, for example: newly defined DCI format 0-0x.
- the network device 500 further includes:
- the second sending module is configured to send the DCI of the second DCI format, where the second DCI format is DCI format 0-0.
- the first sending module 501 is further configured to send Msg4, where the Msg4 indicates the index value of the DMRS port of the terminal.
- the network device provided by the embodiment of the present invention can execute the method embodiment shown in FIG. 3 above, and its implementation principles and technical effects are similar, and details are not described herein again in this embodiment.
- FIG. 6 is a structural diagram of a communication device applied in an embodiment of the present invention.
- the communication device 600 includes: a processor 601, a transceiver 602, a memory 603, and a bus interface.
- the processor 601 Can be responsible for managing the bus architecture and general processing.
- the memory 603 may store data used by the processor 601 when performing operations.
- the communication device 600 further includes: a program that is stored in the memory 603 and can be run on the processor 601, and when the program is executed by the processor 601, the method shown in FIG. 2 or FIG. 3 is implemented. step.
- the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 601 and various circuits of the memory represented by the memory 603 are linked together.
- the bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described herein.
- the bus interface provides the interface.
- the transceiver 602 may be a plurality of elements, including a transmitter and a receiver, and provide a unit for communicating with various other devices on the transmission medium.
- the communication device provided in the embodiment of the present invention may execute the method embodiment shown in FIG. 2 or FIG. 3, and its implementation principles and technical effects are similar, and details are not described herein again in this embodiment.
- the steps of the method or algorithm described in conjunction with the disclosure of the present invention can be implemented in a hardware manner, or can be implemented in a manner that a processor executes software instructions.
- Software instructions can be composed of corresponding software modules, which can be stored in random access memory (Random Access Memory, RAM), flash memory, read-only memory (Read-Only Memory, ROM), erasable programmable read-only memory (Erasable PROM, EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM), registers, hard disk, mobile hard disk, CD-ROM, or any other form of storage medium known in the art.
- An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and can write information to the storage medium.
- the storage medium may also be an integral part of the processor.
- the processor and the storage medium may be located in an application specific integrated circuit (ASIC).
- ASIC application specific integrated circuit
- the ASIC may be located in the core network interface device.
- the processor and the storage medium may also exist as discrete components in the core network interface device.
- the functions described in the present invention can be implemented by hardware, software, firmware, or any combination thereof.
- these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on the computer-readable medium.
- the computer-readable medium includes a computer storage medium and a communication medium, where the communication medium includes any medium that facilitates the transfer of a computer program from one place to another.
- the storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.
- the embodiments of the present invention may be provided as a method, a system, or a computer program product. Therefore, the embodiments of the present invention may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present invention may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
- computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
- These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are used to generate It is a device that realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
- These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
- the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
- These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
- the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
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Abstract
Description
Value | Number of DMRS CDM group(s)without data | DMRS port(s) |
0 | 1 | 0 |
1 | 1 | 1 |
2 | 2 | 0 |
3 | 2 | 1 |
4 | 2 | 2 |
5 | 2 | 3 |
6-7 | Reserved | Reserved |
Value | Number of DMRS CDM group(s)without data | DMRS port(s) |
0 | 1 | 0,1 |
1 | 2 | 0,1 |
2 | 2 | 2,3 |
3 | 2 | 0,2 |
4-7 | Reserved | Reserved |
Value | Number of DMRS CDM group(s)without data | DMRS port(s) |
0 | 2 | 0-2 |
2-7 | Reserved | Reserved |
Value | Number of DMRS CDM group(s)without data | DMRS port(s) |
0 | 2 | 0-3 |
2-7 | Reserved | Reserved |
Value | Number of DMRS CDM group(s)without data | DMRS port(s) |
0 | 1 | 0 |
1 | 1 | 1 |
2 | 2 | 0 |
3 | 2 | 1 |
4 | 2 | 2 |
5 | 2 | 3 |
6 | 3 | 0 |
7 | 3 | 1 |
8 | 3 | 2 |
9 | 3 | 3 |
10 | 3 | 4 |
11 | 3 | 5 |
12-15 | Reserved | Reserved |
Value | Number of DMRS CDM group(s)without data | DMRS port(s) |
0 | 1 | 0,1 |
1 | 2 | 0,1 |
2 | 2 | 2,3 |
3 | 3 | 0,1 |
4 | 3 | 2,3 |
5 | 3 | 4,5 |
6 | 2 | 0,2 |
7-15 | Reserved | Reserved |
Value | Number of DMRS CDM group(s)without data | DMRS port(s) |
0 | 2 | 0-2 |
1 | 3 | 0-2 |
2 | 3 | 3-5 |
3-15 | Reserved | Reserved |
Value | Number of DMRS CDM group(s)without data | DMRS port(s) |
0 | 2 | 0-3 |
1 | 3 | 0-3 |
2-15 | Reserved | Reserved |
Claims (38)
- 一种解调参考信号DMRS端口指示的方法,应用于终端,包括:在接收到无线资源控制RRC信令之前,接收第一信息,所述第一信息指示所述终端的DMRS端口。
- 根据权利要求1所述的方法,其中,所述在接收到RRC信令之前包括以下至少一项:RRC连接建立之前;由空闲态转为连接态之后,第一次接收到RRC重配之前;由非激活态转为连接态之后,第一次接收到RRC重配之前。
- 根据权利要求1所述的方法,其中,所述接收第一信息,包括:接收第一下行控制信息DCI格式format的DCI,所述第一DCI format指示所述终端的DMRS端口。
- 根据权利要求3所述的方法,其中,所述第一DCI format包括以下一项或多项:DCI format 0-0中的全部域或部分域;天线端口域,所述天线端口域指示所述终端的DMRS端口索引值;重复Repetition域,所述Repetition域指示天线端口表格参数编号和/或天线端口表格编号;其他域。
- 根据权利要求3所述的方法,其中,所述第一DCI format具有固定的比特开销。
- 根据权利要求3至5任一项所述的方法,其中,所述第一DCI format为以下任意一种:DCI format 0-1;DCI format 0-2;新定义的DCI format。
- 根据权利要求1所述的方法,还包括:如果没有获得波束训练后的波束信息,则通过监听的同步信号块SSB的 波束进行传输。
- 根据权利要求7所述的方法,其中,所述通过监听的SSB的波束进行传输,包括:通过监听的SSB的波束接收承载所述第一信息的物理下行控制信道PDCCH;或者,通过监听的SSB的波束发送所述第一信息调度的物理上行共享信道PUSCH。
- 根据权利要求1所述的方法,其中,所述接收第一信息,包括:接收消息4,所述消息4指示所述终端的DMRS端口的索引值。
- 根据权利要求1所述的方法,其中,所述接收第一信息之前,所述方法还包括:接收第二DCI format的DCI,所述第二DCI format为DCI format 0-0。
- 一种DMRS端口指示的方法,应用于网络设备,包括:在发送RRC信令之前,发送第一信息,所述第一信息指示所述终端的DMRS端口。
- 根据权利要求11所述的方法,其中,所述在发送RRC信令之前包括以下至少一项:RRC连接建立之前;由空闲态转为连接态之后,第一次发送RRC重配之前;由非激活态转为连接态之后,第一次发送RRC重配之前。
- 根据权利要求11所述的方法,其中,所述发送第一信息,包括:发送第一DCI format的DCI,所述第一DCI format指示所述终端的DMRS端口。
- 根据权利要求13所述的方法,其中,所述第一DCI format包括以下一项或多项:DCI format 0-0中的全部域或部分域;天线端口域,所述天线端口域指示所述终端的DMRS端口索引值;Repetition域,所述Repetition域指示天线端口表格参数编号和/或天线端 口表格编号;其他域。
- 根据权利要求13所述的方法,其中,所述第一DCI format具有固定的比特开销。
- 根据权利要求13至15任一项所述的方法,其中,所述第一DCI format为以下任意一种:DCI format 0-1;DCI format 0-2;新定义的DCI format。
- 根据权利要求11所述的方法,其中,所述发送第一信息,包括:发送Msg4,所述Msg4指示所述终端的DMRS端口的索引值。
- 根据权利要求11所述的方法,其中,所述发送第一信息之前,所述方法还包括:发送第二DCI format的DCI,所述第二DCI format为DCI format 0-0。
- 一种终端,包括:第一接收模块,用于在接收到无线资源控制RRC信令之前,接收第一信息,所述第一信息指示所述终端的解调参考信号DMRS端口。
- 根据权利要求19所述的终端,其中,所述在接收到RRC信令之前包括以下至少一项:RRC连接建立之前;由空闲态转为连接态之后,第一次接收到RRC重配之前;由非激活态转为连接态之后,第一次接收到RRC重配之前。
- 根据权利要求19所述的终端,其中,所述第一接收模块还用于:接收第一下行控制信息DCI格式format的DCI,所述第一DCI format指示所述终端的DMRS端口。
- 根据权利要求21所述的终端,其中,第一DCI format包括以下一项或多项:DCI format 0-0中的全部域或部分域;Antenna域,所述Antenna域指示所述终端的DMRS端口索引值;Repetition域,所述Repetition域指示天线端口表格参数编号和/或天线端口表格编号;其他域。
- 根据权利要求21所述的终端,其中,所述第一DCI format具有固定的比特开销。
- 根据权利要求21-23任一项所述的终端,其中,所述第一DCI format为以下任意一种:DCI format 0-1;DCI format 0-2;新定义的DCI format。
- 根据权利要求19所述的终端,还包括:传输模块,用于如果没有获得波束训练后的波束信息,则通过监听的同步信号块SSB的波束进行传输。
- 根据权利要求25所述的终端,其中,所述传输模块还用于:通过监听的SSB的波束接收承载第一信息的PDCCH;或者,通过监听的SSB的波束发送第一信息调度的物理上行共享信道PUSCH。
- 根据权利要求19所述的终端,其中,所述第一接收模块还用于:接收消息4(Msg4),所述Msg4指示所述终端的DMRS端口的索引值。
- 根据权利要求19所述的终端,还包括:第二接收模块,用于接收第二DCI format的DCI,所述第二DCI format为DCI format 0-0。
- 一种网络设备,包括:第一发送模块,用于在终端接收到RRC信令之前,发送第一信息,所述第一信息指示所述终端的DMRS端口。
- 根据权利要求29所述的网络设备,其中,所述在发送RRC信令之前包括以下至少一项:RRC连接建立之前;由空闲态转为连接态之后,第一次发送RRC重配之前;由非激活态转为连接态之后,第一次发送RRC重配之前。
- 根据权利要求29所述的网络设备,其中,所述第一发送模块还用于:发送第一DCI format的DCI,所述第一DCI format指示所述终端的DMRS端 口。
- 根据权利要求31所述的网络设备,其中,所述第一DCI format包括以下一项或多项:DCI format 0-0中的全部域或部分域;天线端口(Antenna)域,所述天线端口域指示所述终端的DMRS端口索引值;重复(Repetition)域,所述Repetition域指示天线端口表格参数编号和/或天线端口表格编号;其他域。
- 根据权利要求31所述的网络设备,其中,所述第一DCI format具有固定的比特开销。
- 根据权利要求31-33任一项所述的网络设备,其中,所述第一DCI format为以下任意一种:DCI format 0-1;DCI format 0-2;新定义的DCI format。
- 根据权利要求29所述的网络设备,还包括:第二发送模块,用于发送第二DCI format的DCI,所述第二DCI format为DCI format 0-0。
- 根据权利要求29所述的网络设备,其中,所述第一发送模块还用于:发送Msg4,所述Msg4指示所述终端的DMRS端口的索引值。
- 一种通信设备,包括:处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序,所述程序被所述处理器执行时实现包括如权利要求1至10中任一项所述的DMRS端口指示的方法的步骤;或者,如权利要求11至18中任一项所述的DMRS端口指示的方法的步骤。
- 一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现包括如权利要求1至10中任一项所述的DMRS端口指示的方法的步骤;或者,如权利要求11至18中任一项所述的DMRS端口指示的方法的步骤。
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