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WO2022206628A1 - 一种通信方法及装置 - Google Patents

一种通信方法及装置 Download PDF

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Publication number
WO2022206628A1
WO2022206628A1 PCT/CN2022/083206 CN2022083206W WO2022206628A1 WO 2022206628 A1 WO2022206628 A1 WO 2022206628A1 CN 2022083206 W CN2022083206 W CN 2022083206W WO 2022206628 A1 WO2022206628 A1 WO 2022206628A1
Authority
WO
WIPO (PCT)
Prior art keywords
frequency hopping
information
signaling
transmission
manner
Prior art date
Application number
PCT/CN2022/083206
Other languages
English (en)
French (fr)
Inventor
侯海龙
金哲
罗之虎
曲韦霖
余政
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP22778810.6A priority Critical patent/EP4301076A4/en
Publication of WO2022206628A1 publication Critical patent/WO2022206628A1/zh
Priority to US18/479,647 priority patent/US20240030964A1/en

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Classifications

    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0028—Formatting
    • H04L1/0031—Multiple signaling transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/7136—Arrangements for generation of hop frequencies, e.g. using a bank of frequency sources, using continuous tuning or using a transform
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • 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
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/189—Transmission or retransmission of more than one copy of a message
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1893—Physical mapping arrangements
    • 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
    • H04L5/0078—Timing of allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a communication method and device.
  • a terminal device In a mobile communication system, a terminal device needs to establish a wireless connection with a network device through a random access procedure, so as to realize uplink synchronization.
  • the communication standard With the evolution of communication standards, in addition to supporting legacy terminal equipment, the communication standard will also support terminal equipment with lower capabilities than traditional terminal equipment.
  • This type of terminal equipment can be called reduced capability (REDCAP) terminal. equipment.
  • the main feature of REDCAP terminal equipment is the reduction or limitation of terminal capabilities. For example, the bandwidth capability is limited. Compared with traditional terminal equipment, the maximum bandwidth will be reduced to 20MHz, for example, energy-saving terminal equipment. Due to the small bandwidth, receiving or transmitting antenna capabilities of this type of terminal equipment, the communication performance between this type of terminal equipment and network equipment is poor.
  • the terminal equipment passes the third message (Msg3 ) or message A (MsgA) sends a radio resource control (RRC) connection request, when the terminal device is in a cell edge area or a limited coverage area, the performance of Msg3 transmission is relatively poor, which may cause the terminal device to fail to connect Therefore, how to improve the communication performance of the terminal device is called a technical problem that needs to be solved urgently.
  • Msg3 third message
  • MsgA message A
  • RRC radio resource control
  • the present application provides a communication method and apparatus for improving the communication performance of a terminal device.
  • the present application provides a communication method, and the execution body of the method may be a terminal device, or a chip or a circuit.
  • the method includes: determining to transmit in a frequency hopping transmission mode; when transmitting in a repeated transmission mode, sending the first signaling in a frequency hopping and repeated transmission mode between time slots; and/or when transmitting in a non-repetitive transmission mode , the first signaling is sent in a frequency hopping mode within a time slot without repeated transmission.
  • the terminal device can use frequency hopping between time slots when determining to transmit in the form of repeated transmission.
  • the signaling is sent and received in the manner of repeated transmission, so that the frequency hopping gain and the time-domain joint channel estimation gain can be obtained at the same time, so that the communication performance can be further improved.
  • the signaling can be sent and received in a manner of frequency hopping within a time slot and non-repetitive transmission, so that frequency hopping gain can be obtained and communication performance can be improved.
  • the terminal device can obtain a greater gain in communication, thereby greatly improving the communication performance and saving signaling overhead.
  • the terminal device can send the Msg3 in the manner of repeated transmission and frequency hopping between time slots, so that the network device can Accurately receiving Msg3 enables the terminal device to establish an RRC connection with the network device even when it is in a cell edge area or a coverage-limited area, so that the terminal device and the network device can communicate through the RRC connection.
  • Msg3 is used as an example for description here, the first signaling may also be other uplink signaling, and this application does not specifically limit the first signaling.
  • whether to transmit in a repeated transmission manner may be determined according to the first information or a predefined rule. In the above manner, the terminal device and the network device transmit in the same transmission mode, so that communication errors caused by inconsistent transmission modes can be avoided.
  • the terminal device and the network device are made to transmit in the same transmission mode, so that communication errors can be avoided.
  • sending the first signaling in a manner of frequency hopping between time slots and repeated transmission includes: repeating sending the first signaling in a manner of frequency hopping between time slots after performing P repeated transmissions , where P is a positive integer.
  • P is a positive integer.
  • frequency hopping includes inter-BWP frequency hopping and/or intra-BWP frequency hopping.
  • sending the first signaling in a manner of frequency hopping within a time slot without repeated transmission includes: sending the first signaling in a manner of frequency hopping within a time slot and frequency hopping within a BWP. Since the terminal equipment needs to perform RF retuning when performing inter-BWP frequency hopping, the terminal equipment cannot transmit or receive during the RF retuning. In the above design, the intra-BWP frequency hopping method is used when the transmission is not repeated. In this way, transmission performance degradation caused by frequency hopping between BWPs can be avoided.
  • the method further includes: receiving a random access response from the network device, where the uplink grant in the random access response indicates at least one of the following: first information, second information, third information, Fourth information; wherein the third information is used to indicate the frequency hopping position of inter-BWP frequency hopping, and the fourth information is used to indicate the frequency hopping position of intra-BWP frequency hopping.
  • the uplink frequency hopping indication bits included in the uplink grant indicate the third information and/or the fourth information.
  • the uplink grant indicates at least one of the first information, the second information, the third information, and the fourth information through one or more of the following: a modulation and coding scheme (MCS) indication field K1 bits in the K1 bits, K1 is a positive integer less than or equal to N, N is the total number of bits in the MCS indication field; Frequency Domain Resource Allocation (FDRA) indicates K2 bits in the field, K2 is a positive integer less than or equal to M , M is the total number of bits in the FDRA indication field.
  • MCS modulation and coding scheme
  • FDRA Frequency Domain Resource Allocation
  • the uplink grant may indicate additional information (eg, first information, second information, etc.).
  • K1 is determined according to the maximum value of the MCS of the first signaling, and the maximum value of the MCS is predefined or configured by the network device.
  • the MCS indication field may have extra bits for indicating additional information (eg, the first information, the second information, etc.).
  • K2 is determined according to the maximum number of frequency domain resources of the first signaling, and the maximum number of frequency domain resources is predefined or configured by the network device.
  • the FDRA indication field may have extra bits for indicating additional information (eg, first information, second information, etc.).
  • the first signaling is the third message (Msg3) in the random access process or the message A (MsgA) in the random access process.
  • repeated transmission includes: one transmission block occupies one time slot in the time domain, and repeats transmission in multiple time slots; non-repetitive transmission includes: one transmission block occupies one time slot in the time domain , and transmit in one time slot.
  • the present application provides a communication method, and the execution body of the method may be a terminal device, or a chip or a circuit.
  • the method includes: receiving fifth information from a network device, where the fifth information is used to indicate at least one of the following: a maximum MCS value of the terminal device, where the maximum MCS value is less than a first value, and the first value is a predefined value or a network value.
  • the maximum value of MCS configured by the device configured by the device; the maximum value of the number of frequency domain resources corresponding to the transmission of the terminal device, wherein the maximum value of the number of frequency domain resources is less than the number of frequency domain resources included in the bandwidth part BWP; the sixth information is determined according to the fifth information, the first The six pieces of information include at least one of the following items: the number of bits used to indicate the MCS, and the number of bits used to indicate the number of frequency domain resources.
  • the MCS indication field and the FDRA indication field can have extra bits for indicating additional information (such as the first information, the second information and the second information). Wait).
  • determining the sixth information includes: determining the number of bits in the MCS indication field and/or the number of bits in the FDRA indication field for frequency domain resource allocation, wherein the number of bits in the MCS indication field is based on the MCS of the terminal device.
  • the number of bits in the FDRA indication field is determined according to the maximum number of resources in the frequency domain.
  • determining the sixth information includes: determining the number of bits used to indicate the MCS in the MCS indication field, and/or the number of bits used to indicate the number of frequency domain resources in the FDRA indication field.
  • the number of bits of the MCS indication field is predefined or configured by the network device, wherein the number of bits used to indicate the MCS may be determined according to the maximum value of the MCS of the terminal device.
  • the number of bits in the FDRA indication field is predefined or configured by the network device, and the number of bits used to indicate the number of frequency domain resources may be determined according to the maximum number of frequency domain resources transmitted by the terminal device.
  • the number of bits used to indicate the MCS is determined according to the maximum value of the MCS of the terminal device.
  • the number of bits used to indicate MCS satisfies the following formula:
  • k1 is the number of bits used to indicate the MCS
  • X is the maximum value of the MCS of the terminal device.
  • the total number of bits in the MCS indication field is 4 and the first value is 9 as an example. Therefore, if the maximum value of the MCS of the terminal device is equal to 9, 4 bits are required to indicate the MCS, that is, all bits in the MCS indication field are used to indicate MCS. In this embodiment of the present application, by limiting the maximum value of the MCS of the terminal device to be less than 9, the number of bits required to indicate the MCS is reduced, so that the MCS indication field can use extra bits to indicate other information. Take the maximum MCS of the terminal device as 7 as an example, you need to 1 bits indicate the MCS, so the MCS indication field can use 3 bits to indicate the MCS, and use the remaining 1 bit as a read-out bit to indicate other information.
  • the number of bits used to indicate the number of frequency domain resources is determined according to the maximum number of frequency domain resources corresponding to the transmission of the terminal device.
  • the number of bits used to indicate the number of frequency domain resources satisfies the following formula:
  • k2 is the number of bits used to indicate the number of frequency domain resources, is the number of frequency domain resources included in the BWP, and Y is the maximum number of frequency domain resources.
  • the total number of bits in the FDRA indication field is 14, For example, therefore, the maximum number of frequency domain resources corresponding to the transmission of the terminal device is equal to 273, and all bits in the FDRA indication field are used to indicate frequency domain resource information.
  • the maximum number of frequency domain resources corresponding to the transmission of the terminal device is equal to 273, and all bits in the FDRA indication field are used to indicate frequency domain resource information.
  • the FDRA indication field can use extra bits to indicate other information.
  • the maximum number of frequency domain resources corresponding to the transmission of the terminal equipment is 31, For example, you need 1 bits indicate the MCS, so the FDRA indication field can use 13 bits to indicate the frequency domain resource allocation information, and use the remaining 1 bit as a readout bit to indicate other information.
  • the present application provides a communication method, and the execution body of the method may be a network device, or a chip or a circuit.
  • the method includes: determining to transmit in a frequency hopping transmission mode; when transmitting in a repeated transmission mode, receiving (or sending) the first signaling in a frequency hopping and repeated transmission mode between time slots; and/or, when transmitting in a non-repetitive transmission mode When transmitting in the manner of frequency hopping within the time slot and without repeated transmission, the first signaling is received (or sent).
  • the network device can use frequency hopping between time slots when determining to transmit in the form of repeated transmission.
  • the signaling is sent and received in the manner of repeated transmission.
  • the signaling can be sent and received in the manner of frequency hopping within the time slot and without repeated transmission, so that the frequency hopping gain and transmission performance of the first signaling can be improved.
  • whether to transmit in a repeated transmission manner may be determined according to a predefined rule. In the above manner, the terminal device and the network device are made to transmit in the same transmission mode, so that communication errors can be avoided.
  • it may be determined to transmit in a frequency-hopping transmission manner according to a predefined rule.
  • the terminal device and the network device are made to transmit in the same transmission mode, so that communication errors can be avoided.
  • transmitting the first signaling in a manner of frequency hopping between time slots and repeated transmission includes: repeating transmission of the first signaling in a manner of frequency hopping between time slots after performing P repeated transmissions , where P is a positive integer.
  • P is a positive integer.
  • frequency hopping includes inter-BWP frequency hopping and/or intra-BWP frequency hopping.
  • transmitting the first signaling in a manner of frequency hopping within a timeslot without repeated transmission includes: transmitting the first signaling in a manner of frequency hopping within a timeslot and frequency hopping within a BWP. Since the terminal equipment needs to perform RF retuning when performing inter-BWP frequency hopping, the terminal equipment cannot transmit or receive during the RF retuning. In the above design, the intra-BWP frequency hopping method is used when the transmission is not repeated. In this way, transmission performance degradation caused by frequency hopping between BWPs can be avoided.
  • the method further includes: sending a random access response, where the uplink grant in the random access response indicates at least one of the following: first information, second information, third information, and fourth information,
  • the first information is used to indicate whether to transmit in a repeated transmission mode
  • the second information is used to indicate the transmission in a frequency hopping transmission mode
  • the third information is used to indicate the frequency hopping position of frequency hopping between BWPs
  • the fourth information is used to indicate The frequency hopping position of the frequency hopping within the BWP.
  • the uplink frequency hopping indication bits included in the uplink grant indicate the third information and/or the fourth information.
  • the uplink grant indicates at least one of the first information, the second information, the third information, and the fourth information through one or more of the following: a modulation and coding scheme (MCS) indication field K1 bits in the K1 bits, K1 is a positive integer less than or equal to N, N is the total number of bits in the MCS indication field; Frequency Domain Resource Allocation (FDRA) indicates K2 bits in the field, K2 is a positive integer less than or equal to M , M is the total number of bits in the FDRA indication field.
  • MCS modulation and coding scheme
  • FDRA Frequency Domain Resource Allocation
  • the uplink grant may indicate additional information (eg, first information, second information, etc.).
  • K1 is determined according to the maximum value of the MCS of the first signaling, and the maximum value of the MCS is predefined or configured by the network device.
  • the MCS indication field may have extra bits for indicating additional information (eg, the first information, the second information, etc.).
  • K2 is determined according to the maximum number of frequency domain resources of the first signaling, and the maximum number of frequency domain resources is predefined or configured by the network device.
  • the FDRA indication field may have extra bits for indicating additional information (eg, first information, second information, etc.).
  • the first signaling is the third message (Msg3) in the random access process or the message A (MsgA) in the random access process.
  • repeated transmission includes: one transmission block occupies one time slot in the time domain, and repeats transmission in multiple time slots; non-repetitive transmission includes: one transmission block occupies one time slot in the time domain , and transmit in one time slot.
  • the present application provides a communication method, and the execution body of the method may be a network device, or a chip or a circuit.
  • the method includes: determining fifth information, where the fifth information is used to indicate at least one of the following: the maximum value of the MCS of the terminal device, where the maximum value of the MCS is less than the first value, and the first value is the MCS that is predefined or configured by the network device the maximum value; the maximum value of the number of frequency domain resources corresponding to the transmission of the terminal device, wherein the maximum value of the number of frequency domain resources is less than the number of frequency domain resources included in the BWP; send fifth information.
  • the MCS indication field and the FDRA indication field can have extra bits for indicating additional information (such as the first information, the second information and the second information). Wait).
  • the present application further provides a communication device, the communication device having to implement any of the methods provided in the first aspect or the second aspect.
  • the communication device may be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the communication apparatus includes: a processor, and the processor is configured to support the communication apparatus to perform the corresponding functions of the terminal device in the above-described method.
  • the communication device may also include a memory, which may be coupled to the processor, which holds program instructions and data necessary for the communication device.
  • the communication apparatus further includes an interface circuit, and the interface circuit is used to support communication between the communication apparatus and equipment such as network equipment.
  • the communication device includes corresponding functional modules, which are respectively used to implement the steps in the above method.
  • the functions can be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the structure of the communication apparatus includes a processing unit and a communication unit, and these units can perform the corresponding functions in the foregoing method examples.
  • a processing unit and a communication unit can perform the corresponding functions in the foregoing method examples.
  • the present application further provides a communication device, the communication device having to implement any of the methods provided in the third aspect or the fourth aspect.
  • the communication device may be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the communication apparatus includes: a processor configured to support the communication apparatus to perform the corresponding functions of the network device in the method shown above.
  • the communication device may also include a memory, which may be coupled to the processor, which holds program instructions and data necessary for the communication device.
  • the communication apparatus further includes an interface circuit, and the interface circuit is used to support communication between the communication apparatus and equipment such as terminal equipment.
  • the communication device includes corresponding functional modules, which are respectively used to implement the steps in the above method.
  • the functions can be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the structure of the communication device includes a processing unit and a communication unit, and these units can perform the corresponding functions in the foregoing method examples.
  • a processing unit and a communication unit can perform the corresponding functions in the foregoing method examples.
  • a communication device comprising a processor and an interface circuit
  • the interface circuit is configured to receive signals from other communication devices other than the communication device and transmit to the processor or send signals from the processor
  • the processor is used to implement the methods in the foregoing first aspect or second aspect and any possible designs through logic circuits or executing code instructions.
  • a communication device comprising a processor and an interface circuit
  • the interface circuit is configured to receive signals from other communication devices other than the communication device and transmit to the processor or send signals from the processor
  • the processor is used to implement the functional modules of the methods in the third aspect or the fourth aspect and any possible design through logic circuits or executing code instructions.
  • a computer-readable storage medium is provided, and a computer program or instruction is stored in the computer-readable storage medium.
  • the computer program or instruction is executed by a processor, the aforementioned first to fourth aspects are implemented.
  • a tenth aspect provides a computer program product storing instructions that, when executed by a processor, implement any of the foregoing first to fourth aspects, and any possible designs of any aspect. method.
  • a chip system in an eleventh aspect, includes a processor, and may further include a memory, for implementing any one of the foregoing first to fourth aspects, and any possible design of any aspect. method.
  • the chip system may consist of chips, or may include chips and other discrete devices.
  • a twelfth aspect provides a communication system, where the system includes the apparatus (eg, terminal equipment) described in the first aspect and the apparatus (eg, network equipment) described in the third aspect.
  • the apparatus eg, terminal equipment
  • the apparatus eg, network equipment
  • a thirteenth aspect provides a communication system, where the system includes the apparatus (eg, terminal equipment) described in the second aspect and the apparatus (eg, network equipment) described in the fourth aspect.
  • the apparatus eg, terminal equipment
  • the apparatus eg, network equipment
  • FIG. 1 is a schematic structural diagram of a network system according to an embodiment of the application.
  • FIG. 2 is a schematic diagram of a connection between a terminal device and a network device according to an embodiment of the application
  • FIG. 3 is a schematic flowchart of a communication method according to an embodiment of the application.
  • FIG. 4 is a schematic diagram of repeated transmission according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a communication device according to an embodiment of the application.
  • FIG. 6 is a schematic structural diagram of a communication device according to an embodiment of the application.
  • FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the application.
  • FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • Terminal equipment which can be a device with wireless transceiver function or a chip that can be installed in any device, and can also be called user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, Mobile station, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent or user equipment.
  • the terminal device in this embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, an industrial Wireless terminals in industrial control, wireless terminals in self-driving, etc.
  • VR virtual reality
  • AR augmented reality
  • a network device may be a device for implementing the functions of an access network device.
  • An access network device 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, such as an NR system.
  • the next generation base station (next Generation node B, gNB) can be an evolved base station (evolutional node B, eNB) in the LTE system, etc.
  • the network device may also be a device capable of supporting the network device to implement the functions of the access network device, such as a chip system, and the device may be installed in the network device.
  • the terminal device in this embodiment of the present application may be a first-type terminal device or a second-type terminal device, or other terminal devices that need to be enhanced in transmission performance, such as an NR enhanced mobile broadband (Enhanced Mobile Broadband, eMBB) terminal device Wait.
  • a first-type terminal device or a second-type terminal device or other terminal devices that need to be enhanced in transmission performance, such as an NR enhanced mobile broadband (Enhanced Mobile Broadband, eMBB) terminal device Wait.
  • eMBB Enhanced Mobile Broadband
  • the maximum bandwidth supported by the first type of terminal equipment may be greater than the maximum bandwidth supported by the second type of terminal equipment.
  • the first type of terminal equipment can support the simultaneous use of 100MHz frequency domain resources on one carrier to communicate with network equipment, while the second type of terminal equipment can support the maximum use of 20MHz or 10MHz or 5MHz frequency domain resources and network devices to communicate.
  • the number of transceiver antennas is different.
  • the antenna configuration of the first type of terminal equipment may be larger than the antenna configuration of the second type of terminal equipment.
  • the minimum antenna configuration supported by the first type of terminal device may be greater than the maximum antenna configuration supported by the second type of terminal device.
  • Uplink maximum transmit power is different.
  • the maximum uplink transmit power of the first type of terminal equipment may be greater than the uplink maximum transmit power of the second type of terminal equipment.
  • the protocol versions corresponding to the first type of terminal equipment and the second type of terminal equipment are different.
  • NR Rel-15 and NR Rel-16 terminal equipment can be considered as the first type of terminal equipment
  • the second type of terminal equipment can be considered as NR Rel-17 terminal equipment.
  • the first type of terminal equipment and the second type of terminal equipment support different carrier aggregation (CA) capabilities.
  • CA carrier aggregation
  • the first type of terminal equipment may support carrier aggregation, but the second type of terminal equipment does not support carrier aggregation; for another example, both the second type of terminal equipment and the first type of terminal equipment support carrier aggregation, but the first type of terminal equipment supports both.
  • the maximum number of carrier aggregations is greater than the maximum number of carrier aggregations supported by the second type of terminal equipment at the same time.
  • the first type of terminal equipment and the second type of terminal equipment have different frequency division duplex (FDD) capabilities.
  • FDD frequency division duplex
  • a first type of terminal device may support full-duplex FDD, while a second type of terminal device may only support half-duplex FDD.
  • the second type of terminal equipment and the first type of terminal equipment have different data processing time capabilities. For example, the minimum delay between the first type of terminal equipment receiving downlink data and sending the feedback on the downlink data is smaller than that of the second type of terminal equipment. The minimum delay between a device receiving downlink data and sending feedback on that downlink data.
  • the uplink and/or downlink corresponding to the first type of terminal equipment and the second type of terminal equipment have different transmission peak rates.
  • “at least one” refers to one or more, and “multiple” refers to two or more.
  • “And/or”, which describes the association relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and/or B, which can indicate: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects are an “or” relationship.
  • “At least one item(s) below” or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s).
  • At least one item (a) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c may be single or multiple .
  • ordinal numbers such as “first” and “second” mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the size, content, order, and timing of multiple objects , priority or importance, etc.
  • the first information and the second information are only for distinguishing different information, but do not indicate the difference in size, content, priority, or importance of the two pieces of information.
  • the random access procedure includes a 4-step random access channel (RACH) and a 2-step RACH.
  • RACH 4-step random access channel
  • the network device After receiving the random access preamble (random access preamble) sent by the terminal device, the network device sends a random access response (RAR) to the terminal device, including uplink resource allocation information and other information. .
  • RAR random access response
  • the terminal device sends the third message (Msg 3) in the random access process based on the scheduling of the RAR message, and Msg 3 is used to send an RRC connection establishment request.
  • MsgA message A
  • MsgA includes two parts, one part is the preamble, and the other part is the physical uplink shared channel (physical uplink shared channel, PUSCH) payload (payload).
  • the MsgA message can be considered to include the content included in the preamble and Msg3 in the 4-step RACH.
  • the network device configures a common BWP of a cell for the terminal device to perform random access, including the initial downlink BWP (initial DL BWP) and the initial uplink BWP (initial UL BWP).
  • some uplink channel transmission parameters in the random access process are configured in the initial uplink BWP, including the resources of the first message (physical random access channel (PRACH) of Msg1), the physical properties of the third message (Msg3).
  • Uplink shared channel physical uplink shared channel, PUSCH) resources, hybrid automatic repeat request (HARQ) of the fourth message (Msg4) - positive acknowledgment (acknowledgment, ACK) feedback the public PUCCH resources used, etc.
  • the communication performance between the second type of terminal equipment and the network equipment is poor.
  • the performance of Msg3 transmission is relatively poor, so that the second type of terminal equipment cannot be access to the network.
  • the embodiments of the present application provide a communication method and apparatus, which can solve the problem of communication performance degradation due to bandwidth reduction and/or antenna reduction and other terminal capability reduction.
  • the method and the device are based on the same concept. Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.
  • the communication method provided in this application can be applied to various communication systems, for example, the Internet of Things (IoT), the narrowband internet of things (NB-IoT), the long term evolution (long term evolution) , LTE), it can also be a fifth generation (5G) communication system, it can also be a hybrid architecture of LTE and 5G, it can also be a 5G new radio (NR) system, and 6G or new communications emerging in future communication development system, etc.
  • the 5G communication system described in this application may include at least one of a non-standalone (NSA) 5G communication system and an independent (standalone, SA) 5G communication system.
  • the communication system may also be a machine to machine (M2M) network or other network.
  • M2M machine to machine
  • the communication system includes a network device and six terminal devices, namely UE1 to UE6.
  • UE1-UE6 can send uplink data to network equipment, and the network equipment can receive uplink data sent by UE1-UE6.
  • UE4 to UE6 may also form a sub-communication system.
  • the network device may send downlink information to UE1, UE2, UE3, and UE5, and UE5 may send downlink information to UE4 and UE6 based on a device-to-device (device-to-device, D2D) technology.
  • FIG. 1 is only a schematic diagram, and does not specifically limit the type of the communication system, and the number and type of devices included in the communication system.
  • the network device and the terminal device may be connected through an air interface interface.
  • the connection relationship between the network device and the terminal device may be as shown in FIG. 2 .
  • the network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. With the evolution of the architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
  • the method is performed by a network device and a terminal device as an example.
  • transmission can be understood as sending and/or receiving.
  • transmission on the terminal device side refers to sending
  • transmission on the network device side refers to receiving, that is, the terminal device sends the first signaling .
  • the communication method described in this application will be described by taking the network device receiving the first signaling as an example.
  • FIG. 3 it is a schematic flowchart of a communication method provided by the present application.
  • the method includes:
  • the terminal device determines to transmit in a frequency hopping transmission manner.
  • the network device determines to transmit in a frequency hopping transmission manner.
  • the terminal device and the network device may determine to send and/or receive information in a frequency hopping manner in the next period of time, or determine to transmit and/or receive certain pieces of information in a frequency hopping manner.
  • S301 and S302 are optional steps, and the embodiment of the present application does not limit the sequence of S301 and S302.
  • the terminal device when transmitting in a manner of repeated transmission, the terminal device sends the first signaling in a manner of frequency hopping between time slots and repeated transmission, and/or when transmitting in a manner of non-repetitive transmission, by frequency hopping within a time slot
  • the first signaling is sent in a manner without repeated transmission.
  • the terminal device sends the first signaling in a manner of frequency hopping and repeated transmission between time slots, and the network device receives the first signaling in a manner of frequency hopping and repeated transmission between time slots.
  • the terminal device sends the first signaling in a manner of frequency hopping within the time slot without repeated transmission, and the network device receives the first signaling in a manner of frequency hopping within the time slot without repeated transmission.
  • the first signaling may be signaling such as Msg3 and MsgA.
  • the communication methods described in the embodiments of the present application are not only applicable to Msg3 transmission, but also applicable to other physical downlink shared channels (physical downlink shared channels, PDSCH) or physical uplink shared channels (physical uplink shared channels, PUSCH), Physical Downlink Control Channel (PDCCH) or Physical Uplink Control Channel (PUSCH), Physical Random Access Channel (PRACH) or Physical Uplink Shared Channel (physical uplink shared channel, PUSCH) uses a reference signal (reference signal, RS), such as information state information reference signal (channel state information reference signal, CSI-RS), sounding reference signal (sounding reference signal, SRS) transmission scenarios.
  • RS reference signal
  • the terminal device may also use the communication method described in the embodiment of the present application to send or receive information, data, and the like.
  • Frequency hopping mode and repetition mode include at least one of the following: no frequency hopping and no repeated transmission, no frequency hopping and repeated transmission, frequency hopping between time slots and repeated transmission, frequency hopping between time slots and no repeated transmission, and intra-slot hopping frequency and non-repetitive transmission, frequency hopping within time slots and repeated transmission. That is to say, in addition to the two transmission types of frequency hopping and repeated transmission between time slots and frequency hopping and non-repetitive transmission within time slots, the terminal device and the network device can also use the other four transmission types to send and receive the first signaling.
  • Terminal equipment and network equipment can support one or more of the above six transmission types.
  • the terminal device and the network device can support frequency hopping between time slots and repeated transmission and non-frequency hopping and non-repetitive transmission.
  • it is determined to use frequency hopping between time slots and repeated transmission or no frequency hopping and no frequency hopping. Do not repeat transmissions.
  • the terminal device and the network device may send and receive the first signaling in a manner of frequency hopping between time slots without repeated transmission.
  • a coding block of one transport block (TB) is mapped to multiple time slots .
  • the terminal device and the network device may use frequency hopping within time slots and repeat transmission.
  • the terminal device and the network device may send and receive the first signaling in a manner without frequency hopping and without repeated transmission.
  • the terminal device and the network device may send and receive the first signaling in a manner of non-frequency hopping and repeated transmission.
  • the repeated transmission of the first signaling may be performed between time slots or within time slots.
  • the terminal device may determine whether to transmit in a repeated transmission manner according to the first information from the network device.
  • the terminal device may also determine whether to transmit in a repeated transmission manner according to a predefined rule.
  • the network device can determine whether to receive as repeated transmissions according to predefined rules.
  • the predetermined rule may be whether the protocol specifies whether to perform repeated transmission, or the protocol specifies scenarios, signaling, etc. for repeated transmission, and/or scenarios, signaling, etc. that do not perform repeated transmission.
  • the first information may indicate the number of repeated transmissions, and whether to repeat the transmission is indicated according to the number of repeated transmissions. For example, if the number of repeated transmissions is 1, it means that the transmission is only performed once, and there is no need to perform repeated transmissions. The number of repeated transmissions If the value is greater than 1, it indicates that the transmission is repeated for the number of times. For another example, the first information indicates that 0 may represent that repeated transmission is not performed.
  • the terminal device may determine to transmit in a frequency hopping transmission manner according to the second information from the network device, or may determine to transmit in a frequency hopping transmission manner according to a predefined rule.
  • the network device may determine to receive in a frequency hopping transmission mode according to a predefined rule.
  • the predefined rule may be that the protocol specifies whether to perform frequency hopping transmission, or the protocol specifies the scenario, signaling, etc. of frequency hopping transmission, and/or the scenario, signaling, etc. of non-frequency hopping transmission.
  • the embodiments of the present application do not limit the process of the terminal device (or the network device) determining whether to transmit in the manner of repeated transmission and the sequence of the process of determining whether to transmit in the manner of frequency hopping transmission.
  • non-repetitive transmission means that a codeword (codeword) of a transport block (transport block, TB) is mapped to a time-frequency resource in a time slot; repeating Transmission means that the coded block of one TB is mapped to the time-frequency resource in one time slot, and the mapping is repeated in multiple time slots.
  • codeword codeword
  • transport block transport block
  • repeating Transmission means that the coded block of one TB is mapped to the time-frequency resource in one time slot, and the mapping is repeated in multiple time slots.
  • the coded block of one TB is mapped to the time-frequency resources in multiple time slots. It is understandable that the transmission of one TB in multiple slots does not belong to repeated transmission.
  • the terminal device can use frequency hopping between time slots when determining to transmit in the form of repeated transmission.
  • the signaling is sent and received in the manner of repeated transmission, so that the frequency hopping gain and the time-domain joint channel estimation gain can be obtained at the same time, so that the communication performance can be further improved.
  • the signaling can be sent and received in a manner of frequency hopping within a time slot and non-repetitive transmission, so that frequency modulation gain can be obtained and communication performance can be improved.
  • the terminal device can obtain a greater gain in communication, thereby greatly improving the communication performance and saving signaling overhead.
  • the terminal equipment when the terminal equipment works in a larger bandwidth, it can use different frequencies to communicate according to different service characteristics by means of frequency hopping, so as to improve the communication efficiency; and When bandwidth capacity is limited, retransmission can be used to enhance transmission performance.
  • the terminal device can send the Msg3 in the manner of repeated transmission and frequency hopping between time slots, so that the network device can Accurately receiving Msg3 enables the terminal device to establish an RRC connection with the network device even when it is in a cell edge area or a coverage-limited area, so that the terminal device and the network device can communicate through the RRC connection.
  • the network device may indicate the above-mentioned first information and the above-mentioned second information through the following signaling: system information block 1 (system information block 1, SIB1) or uplink grant ( RAR UL grant) to reinterpret bits or schedule downlink control information (DCI) of Msg2.
  • system information block 1 system information block 1, SIB1
  • RAR UL grant uplink grant
  • DCI schedule downlink control information
  • the content of the RAR UL grant can be as shown in Table 1.
  • the reinterpretation bits in the RAR UL grant may include at least one of the following: K1 bits in the MCS indication field, where K1 is a positive integer less than or equal to N, and N is the total number of bits in the MCS indication field; FDRA Indicates K2 bits in the field, where K2 is a positive integer less than or equal to M, where M is the total number of bits in the FDRA indication field.
  • K1 may be determined according to the maximum value of MCS of the first signaling, where the maximum value of MCS is predefined or configured by the network device.
  • K2 may be determined according to the maximum number of frequency domain resources of the first signaling, where the maximum number of frequency domain resources is predefined or configured by the network device.
  • the above K1 bits may be bits other than the bits used to indicate MCS in the MCS indication field.
  • the MCS indication field includes K1+k1 bits, where k1 bits are used to indicate MCS, and the remaining K1 bits are Reinterpret bits in RAR UL grant.
  • the above K2 bits may be bits other than the bits used to indicate the number of frequency domain resources in the FDRA indication field.
  • the FDRA indication field includes K2+k2 bits, where k2 bits are used to indicate the number of frequency domain resources, and the remaining K2 bits are reinterpreted bits in the RAR UL grant.
  • the terminal device may determine the number of bits used to indicate the MCS, and/or the number of bits used to indicate the number of frequency domain resources, through the following steps A1 and A2, and this implementation may also not depend on the steps.
  • S301-S303 and the above-mentioned RAR UL grant in the re-interpretation bit scheme are implemented as a single scheme:
  • the terminal device receives fifth information from the network device, where the fifth information is used to indicate at least one of the following: the maximum value of the MCS of the terminal device, where the maximum value of the MCS is less than the first value, and the first value is a predefined or The maximum value of the MCS configured by the network device; the maximum value of the number of frequency domain resources of the terminal device, where the maximum value of the number of frequency domain resources is less than the number of frequency domain resources included in the BWP.
  • the first value is the maximum value of the MCS in the MCS table indicated by the network device.
  • multiple MCS tables may be predefined, and the network device may indicate the MCS table used by the terminal device from the multiple MCS tables.
  • the value is the maximum value of this MCS table.
  • the fifth information may be the maximum value of MCS and/or the maximum number of frequency domain resources configured by the network device for the second type of terminal device, or other terminal devices that need to enhance transmission performance.
  • the fifth information may be the maximum value of MCS and/or the maximum number of frequency domain resources configured by the network device for a certain communication of the terminal device.
  • the terminal device may determine sixth information according to the fifth information, where the sixth information includes at least one of the following items: the number of bits used to indicate the MCS, and the number of bits used to indicate the number of frequency domain resources.
  • the number of bits determined by the terminal device may be the number of bits used for the current MCS indication, that is, the number of bits determined by the terminal device may be valid only for the current MCS indication.
  • the terminal device can determine the number of bits in the MCS indication field and/or the number of bits in the FDRA indication field, wherein the number of bits in the MCS indication field is determined according to the maximum value, and the number of bits in the FDRA indication field is determined according to the frequency.
  • the maximum number of domain resources is determined.
  • the number of bits in the MCS indication field can be determined according to the maximum value of the MCS of the terminal equipment, and the number of bits in the FDRA indication field can be determined according to the maximum value of the number of frequency domain resources used by the terminal equipment for transmission.
  • the terminal device may determine the number of bits used to indicate the MCS in the MCS indication field, and/or the number of bits used to indicate the number of frequency domain resources in the FDRA indication field.
  • the number of bits of the MCS indication field is predefined or configured by the network device, wherein the number of bits used to indicate the MCS may be determined according to the maximum value of the MCS of the terminal device.
  • the number of bits in the FDRA indication field is predefined or configured by the network device, and the number of bits used to indicate the number of frequency domain resources may be determined according to the maximum number of frequency domain resources transmitted by the terminal device.
  • the number of bits used to indicate MCS in the MCS indication field may satisfy the following formula:
  • k1 is the number of bits used to indicate the MCS in the MCS indication field (or the number of bits in the MCS indication field), and X is the maximum value of the MCS of the terminal device.
  • X is the maximum value of the MCS of the terminal device.
  • the MCS indication field can use extra bits to indicate other information.
  • the maximum MCS of the terminal device Take the maximum MCS of the terminal device as 7 as an example, you need to 1 bits indicate the MCS, so the MCS indication field can use 3 bits to indicate the MCS, and use the remaining 1 bit as a read-out bit to indicate other information.
  • the number of bits used to indicate the number of frequency domain resources in the FDRA indication field may satisfy the following formula:
  • k2 is the number of bits used to indicate the number of frequency domain resources in the FDRA indication field (or the number of bits in the FDRA indication field), is the number of frequency domain resources included in the BWP, and Y is the maximum number of frequency domain resources.
  • the maximum value Y of the number of frequency domain resources may be 31.
  • the total number of bits in the FDRA indication field is 14, For example, therefore, the maximum value of the number of frequency-domain resources corresponding to the transmission of the terminal device is equal to 273, and all bits in the FDRA indication field are used to indicate the number of frequency-domain resources.
  • the FDRA indication field can use extra bits to indicate other information.
  • the maximum number of frequency domain resources corresponding to the transmission of the terminal equipment is 31, For example, you need 1 bits indicate the MCS, so the FDRA indication field can use 13 bits to indicate the frequency domain resource allocation information, and use the remaining 1 bit as a readout bit to indicate other information.
  • K1 can satisfy the following formula:
  • MCS can be used to indicate the domain from low to high bits indicating MCS, with the remaining Bits indicate other information.
  • FDRA field For example, you can use the FDRA field from low to high bits are used to indicate frequency domain resource allocation information, with the remaining Bits indicate other information.
  • the above K1 bits and K2 bits may be indicated separately.
  • the above K1 bits may indicate the first information
  • the above K2 bits may indicate the second information.
  • the above K1 bits and K2 bits may also be indicated jointly.
  • the above K1 bits and the above K2 bits may jointly indicate the first information and the second information.
  • the network device can also indicate the first information and/or the second information by reinterpreting the bits in the RAR UL grant and jointly indicating the DCI and SIB1 used for scheduling the RAR. For example, it can be re-interpreted in the RAR UL grant.
  • the bit and the DCI used to schedule the RAR jointly indicate whether to repeat the transmission and/or whether to frequency hop the transmission. For another example, whether to repeat the transmission and/or whether to frequency hop transmission can be configured by reinterpreting the bits in the RAR UL grant and the SIB1 semi-static configuration.
  • the frequency hopping manner may be intra-BWP frequency hopping.
  • the frequency hopping manner may include inter-BWP frequency hopping and/or intra-BWP frequency hopping.
  • Inter-BWP frequency hopping may mean that the frequency domain positions of frequency hopping transmission are located on different BWPs
  • intra-BWP frequency hopping may mean that the frequency domain positions of frequency hopping transmission are located in the same BWP. It should be noted that, for inter-BWP frequency hopping, since BWP handover is performed, radio frequency readjustment is required during BWP handover, etc. Therefore, during inter-BWP frequency hopping, there may be X symbols/slot duration between two adjacent transmissions.
  • the interval, X is related to the capability of the terminal equipment. During this interval, the terminal equipment does not send and receive data. For frequency hopping within BWP, there may be no interval between two adjacent transmissions, that is, two adjacent transmissions may be continuous in the time domain, thereby improving transmission efficiency.
  • the network device may indicate through the second signaling that the frequency-domain frequency hopping mode is inter-BWP frequency hopping or intra-BWP frequency hopping, and the second signaling may indicate through the following signaling: system broadcast information, RRC signaling, media access Control channel element (media access control channel element, MAC CE), DCI, etc.
  • the first signaling is Msg3
  • the second signaling may include: SIB1 or DCI for scheduling Msg2 or reinterpretation bits in the above RAR UL grant.
  • the network device may also use the third information to indicate the frequency hopping position of the inter-BWP frequency hopping, and/or use the fourth information to indicate the frequency hopping position of the intra-BWP frequency hopping.
  • the network device may indicate the third information and/or the fourth information in the following two implementation manners:
  • the network device can reuse the frequency-hopping indication bits of the FDRA indication field in the existing RAR UL grant to indicate the frequency-domain offset (offset) of the second frequency-hopping transmission. , that is, the network device can indicate whether the terminal device performs frequency hopping transmission through the frequency hopping flag indication field in the RAR UL grant.
  • the protocol can predefine several groups of frequency domain offset values transmitted by the second hop, which are indicated by the high-order bits of the FDRA indication field in the RAR UL grant.
  • the frequency domain offset may be the number of RBs, where the frequency domain offset may be a value predefined in the prior art, or may be a newly introduced value.
  • the newly introduced offset value can be either a value predefined by a protocol or configured by a network device, for example, configured through the following signaling: SIB1, DCI for scheduling Msg2, reinterpretation bits in the above RAR UL grant, etc.
  • the network device can pre-configure one or more frequency-hopping BWP ID sequences in SIB1, and use the DCI for scheduling Msg2 and the re-interpretation bits in the above RAR UL grant. Indicates which of the hopping BWP ID sequences to use. For example, the network device can preconfigure four BWPs.
  • the ID sequence of the BWPs in the process of frequency hopping transmission can be configured, such as (0, 2, 1, 3), (2, 0 , 3, 1) and so on.
  • the relative frequency domain positions within the BWPs of each transmission may be the same.
  • the frequency domain offset value of the next frequency hopping transmission may be predefined or configured by the network device.
  • the frequency domain offset value may be smaller than the size of the current BWP, and for inter-BWP frequency hopping, the frequency domain offset value may be greater than or equal to the current BWP size.
  • the BWP size is 51RBs
  • the frequency domain offset value is configured as ⁇ 10, 20, 30 ⁇
  • the frequency domain offset value is configured as ⁇ 60, 70, 80 ⁇ .
  • the network device can configure the frequency domain offset values of inter-BWP frequency hopping and intra-BWP frequency hopping at the same time, and the terminal device can determine which set of frequency domain offset values to use according to the determined frequency domain frequency hopping mode frequency hopping transmission.
  • the frequency domain offset value configured by the network device includes ⁇ 10, 20, 30, 60, 70, 80 ⁇ .
  • the available offset value is ⁇ 10, 20, 30 ⁇ .
  • the offset values that can be used are ⁇ 60, 70, 80 ⁇ .
  • the network device may be configured with three BWPs, namely BWP0, BWP1, and BWP2.
  • the network device may instruct the terminal device to send the Msg3 in the manner of repeated transmission and frequency hopping between BWPs.
  • the number of repeated transmissions is 6, and the frequency hopping between BWPs is performed after every 2 repeated transmissions.
  • the BWP ID sequence during frequency hopping between BWPs is (0, 1, 2), and the time-frequency domain positions of the 6 transmissions are shown in the figure. 4 shown.
  • the "BWP" described in the inter-BWP frequency hopping and the intra-BWP frequency hopping described in this application can be understood as a frequency domain resource block. It should be noted that the embodiments of the present application only take the frequency domain resource as BWP as an example for description, and the frequency domain resource can also be other resource blocks, not limited to the granularity of BWP, for example, it can also be a continuous resource block (resource block, RB) composed of frequency domain resource blocks.
  • resource block resource block
  • the multiple BWPs may have different BWP index values.
  • the multiple BWPs may have the same index value but different frequency domain positions or different starting positions.
  • the fourth message is a hybrid automatic repeat request (HARQ)-positive acknowledgment (acknowledgment, ACK) ) to feed back the used public PUCCH resources, PRACH and other channels
  • the multiple BWPs may be initial uplink BWPs.
  • the network device may configure multiple BWPs for the terminal device.
  • the multiple BWPs may have different BWP index values.
  • the multiple BWPs may have the same index value but different frequency domain positions or different starting positions.
  • the network device may configure multiple initial uplink BWPs, where the multiple initial uplink BWPs include at least one first initial uplink BWP and at least one second initial uplink BWP, the The at least one first initial uplink BWP is configured by the network device for the terminal device of the first type, and the at least one second initial uplink BWP is configured by the network device for the terminal device of the second type.
  • the transmission The frequency domain resource allocation information of can be determined in the following three ways:
  • the first initial uplink BWP Determined according to the first initial uplink BWP, specifically, it may be determined according to at least one of the starting position of the first initial uplink BWP and the number of RBs included in the first initial uplink BWP.
  • Determined according to the first initial uplink BWP and the second initial uplink BWP can be determined according to the starting position of the second initial uplink BWP and the relative position between the second initial uplink BWP and the first initial uplink BWP and the first initial uplink BWP. At least one item of the number of RBs included in the initial uplink BWP is determined.
  • the radio frequency link adjustment may not be performed, and when the frequency domain resource for data transmission determined by the terminal device is outside the range of the second initial uplink BWP , the RF link adjustment can be performed.
  • the above manner of configuring the BWP may be implemented as a solution independently of steps S301-S303.
  • the carrier bandwidth (carrier bandwidth) configured by the network equipment may be allowed to be greater than the maximum bandwidth of the UE.
  • the carrier bandwidth carrier bandwidth configured by the network equipment may be allowed to be greater than the maximum bandwidth of the UE.
  • the network device is configured with carrier bandwidth in the initial access stage and the stage after initial access, and the carrier bandwidth is allowed to be greater than the maximum bandwidth of the UE;
  • the network device configures the carrier bandwidth in the initial access phase, the carrier bandwidth is allowed to be greater than the maximum bandwidth of the UE, and the carrier bandwidth configured in the initial access phase continues to be used after the initial access.
  • the second type of terminal may report a bandwidth capability greater than the maximum bandwidth supported by the terminal.
  • the network device configures the carrier bandwidth for the second type of terminal according to the bandwidth capability.
  • the first signaling when the terminal device sends the first signaling in the manner of frequency hopping between time slots and repeated transmission, the first signaling may be sent in the following manner: after each repeated transmission is performed for P times, the first signaling is used for frequency hopping between time slots.
  • the first signaling is repeatedly sent in the manner, where P is a positive integer. That is, after the terminal device repeatedly sends the first signaling for P times, it repeatedly sends the first signaling in a manner of performing frequency hopping between time slots.
  • the value of P may be configured by the network device, for example, indicated by the following signaling: reinterpreting bits in SIB1 or the above-mentioned RAR UL grant, or scheduling the DCI of Msg2, etc.
  • the value of P may also be predefined, for example, P may be determined according to the number of repeated transmissions.
  • P may be determined according to the number of repeated transmissions.
  • the embodiments of the present application provide a communication device, the structure of which may be as shown in FIG. 5 , including a communication module 501 and a processing module 502 .
  • the communication apparatus may be specifically used to implement the method performed by the terminal device in the embodiments of FIG. 3 to FIG. 4 , and the apparatus may be the terminal device itself, or may be a chip or a chipset in the terminal device or the part of the chip used to perform the function of the associated method.
  • the communication module 501 is used to communicate with the network device; the processing module 502 is used to determine the transmission by frequency hopping transmission; The first signaling is transmitted through the communication module 501 in the manner of transmission; and/or, when the transmission is performed in a manner of non-repetitive transmission, the first signaling is transmitted by the communication module 501 in a manner of frequency hopping within a time slot and non-repetitive transmission.
  • the processing module 502 is further configured to: determine whether to transmit in a manner of repeated transmission according to the first information or a predefined rule.
  • the processing module 502 is further configured to: determine to transmit in a frequency hopping transmission manner according to the second information or a predefined rule.
  • the processing module 502 transmits the first signaling through the communication module 501 in the manner of frequency hopping and repeated transmission between time slots, it is specifically used for: after each repeated transmission is performed P times, to perform an inter-slot transmission.
  • the communication module 501 repeatedly transmits the first signaling, where P is a positive integer.
  • the processing module 502 when the processing module 502 transmits the first signaling in the manner of frequency hopping within the time slot and without repeated transmission, the processing module 502 is specifically configured to: transmit the first signaling in the manner of frequency hopping within the time slot and frequency hopping within the BWP through communication Module 501 transmits the first signaling.
  • the communication module 501 is further configured to: receive a random access response from the network device, and the uplink grant in the random access response indicates at least one of the following: first information, second information, third information, Fourth information, wherein the third information is used to indicate the frequency hopping position of the inter-BWP frequency hopping, and the fourth information is used to indicate the frequency hopping position of the intra-BWP frequency hopping.
  • the communication apparatus may be specifically used to implement the method performed by the network device in the embodiments of FIG. 3 to FIG. 4 , and the apparatus may be the network device itself, or may be a chip or a chip in the network device The part of a set or chip that performs the function of the associated method.
  • the communication module 501 is used to communicate with the terminal device; the processing module 502 is used to: determine to transmit in a frequency hopping transmission mode; In the transmission mode, the first signaling is transmitted through the communication module 501; and/or when the transmission is in a non-repetitive transmission mode, the first signaling is transmitted through the communication module 501 in a time slot frequency hopping and non-repetitive transmission mode.
  • the processing module 502 is further configured to: determine whether to transmit in a manner of repeated transmission according to a predefined rule.
  • the processing module 502 is further configured to: determine to transmit in a frequency hopping transmission manner according to a predefined rule.
  • the processing module 502 transmits the first signaling through the communication module 501 in the manner of frequency hopping and repeated transmission between time slots, it is specifically used for: after each repeated transmission is performed P times, to perform an inter-slot transmission.
  • the communication module 501 repeatedly transmits the first signaling, where P is a positive integer.
  • the processing module 502 when the processing module 502 transmits the first signaling through the communication module 501 in the manner of frequency hopping within the time slot and without repeated transmission, the processing module 502 is specifically used for: frequency hopping within the time slot and frequency hopping within the BWP way to transmit the first signaling through the communication module 501 .
  • the communication module 501 is further configured to: send a random access response, where the uplink grant in the random access response indicates at least one of the following: first information, second information, third information, and fourth information;
  • the first information is used to indicate whether to transmit in a repeated transmission mode
  • the second information is used to indicate the transmission in a frequency hopping transmission mode
  • the third information is used to indicate the frequency hopping position of frequency hopping between BWPs
  • the fourth information is used to indicate The frequency hopping position of the frequency hopping within the BWP.
  • the communication apparatus may be specifically used to implement the method performed by the terminal device in the solution of indicating information by reinterpreting bits in the RARUL grant in the embodiments of FIG. 3 to FIG. 4 , and the apparatus may be
  • the terminal device itself may also be a chip in the terminal device or a chip set or a part of the chip for executing the relevant method functions.
  • the communication module 501 is configured to receive fifth information from the network device, where the fifth information is used to indicate at least one of the following: the maximum value of the MCS of the terminal device, where the maximum value of the MCS is less than the first value, and the first value is a predetermined value.
  • the information determines sixth information, where the sixth information includes at least one of the following items: the number of bits used to indicate the MCS, and the number of bits used to indicate the number of frequency domain resources.
  • the processing module 502 is specifically configured to: determine the number of bits of the MCS indication field and/or the number of bits of the FDRA indication field, wherein the number of bits of the MCS indication field is determined according to the maximum value of the MCS of the terminal device, and the FDRA indication The number of bits in the domain is determined according to the maximum number of resources in the frequency domain.
  • the processing module 502 is specifically configured to: determine the number of bits used to indicate the MCS in the MCS indication field, and/or the number of bits used to indicate the number of frequency domain resources in the FDRA indication field.
  • the communication apparatus may be specifically used to implement the method performed by the network device in the solution of indicating information by reinterpreting bits in the RAR UL grant in the embodiments of FIG. 3 to FIG. 4 , the apparatus It may be the network device itself, or a chip or a chipset in the network device, or a part of the chip for executing the relevant method functions.
  • the communication module 501 and the processing module 502 are used to determine fifth information, where the fifth information is used to indicate at least one of the following: the maximum value of MCS of the terminal device, where the maximum value of MCS is less than the first value, and the first value is a predetermined value.
  • the division of modules in the embodiments of the present application is schematic, and is only a logical function division. In actual implementation, there may be other division methods.
  • the functional modules in the various embodiments of the present application may be integrated into one processing unit. In the device, it can also exist physically alone, or two or more modules can be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. It can be understood that, for the functions or implementations of each module in the embodiments of the present application, further reference may be made to the related descriptions of the method embodiments.
  • the communication device may be as shown in FIG. 6 , and the device may be a communication device or a chip in the communication device, wherein the communication device may be the terminal device in the above-mentioned embodiment or the above-mentioned embodiment.
  • the apparatus includes a processor 601 and a communication interface 602 , and may also include a memory 603 .
  • the processing module 502 may be the processor 601.
  • the communication module 501 may be the communication interface 602 .
  • the processor 601 may be a CPU, or a digital processing unit or the like.
  • the communication interface 602 may be a transceiver, an interface circuit such as a transceiver circuit, or a transceiver chip or the like.
  • the apparatus further includes: a memory 603 for storing programs executed by the processor 601 .
  • the memory 603 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), such as a random access memory (random access memory) -access memory, RAM).
  • Memory 603 is, but is not limited to, any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
  • the processor 601 is configured to execute the program code stored in the memory 603, and is specifically configured to execute the actions of the above-mentioned processing module 502, which will not be described herein again.
  • the communication interface 602 is specifically configured to perform the actions of the above-mentioned communication module 501 , and details are not described herein again in this application.
  • the specific connection medium between the communication interface 602 , the processor 601 , and the memory 603 is not limited in this embodiment of the present application.
  • the memory 603, the processor 601, and the communication interface 602 are connected through a bus 604 in FIG. 6.
  • the bus is represented by a thick line in FIG. 6, and the connection between other components is only for schematic illustration. , is not limited.
  • the bus can be divided into address bus, data bus, control bus and so on. For ease of presentation, only one thick line is used in FIG. 6, but it does not mean that there is only one bus or one type of bus.
  • FIG. 7 is a schematic structural diagram of a network device provided by an embodiment of the present application, such as a schematic structural diagram of a network device.
  • the network device can be applied to the system shown in FIG. 1 , and performs the functions of the network device in the method embodiments described in the foregoing FIGS. 3 to 4 .
  • the network device 70 may include one or more distributed units (DUs) 701 and one or more centralized units (CUs) 702 .
  • the DU 701 may include at least one antenna 705 , at least one radio frequency unit 706 , at least one processor 707 and at least one memory 708 .
  • the DU 701 part is mainly used for the transceiver of radio frequency signals, the conversion of radio frequency signals and baseband signals, and part of baseband processing.
  • the CU 702 may include at least one processor 7022 and at least one memory 7021 . Communication between the CU702 and the DU701 can be performed through an interface, wherein the control plane (Control plan) interface can be Fs-C, such as F1-C, and the user plane (User Plan) interface can be Fs-U, such as F1-U.
  • Control plan Control plan
  • User Plan User Plan
  • the CU 702 part is mainly used to perform baseband processing, control network equipment, and the like.
  • the DU 701 and the CU 702 can be physically set together, or can be physically set separately, that is, a distributed base station.
  • the CU 702 is the control center of the network device, which can also be called a processing unit, and is mainly used to complete the baseband processing function.
  • the CU 702 may be used to control the network device to execute the operation flow of the network device in the method embodiments described in the foregoing FIG. 3 to FIG. 4 .
  • the baseband processing on the CU and DU can be divided according to the protocol layers of the wireless network.
  • the functions of the packet data convergence protocol (PDCP) layer and the above protocol layers are set in the CU and the protocol layers below the PDCP, such as
  • the functions of the radio link control (radio link control, RLC) layer and the medium access control (medium access control, MAC) layer are set in the DU.
  • the CU implements functions of the RRC and PDCP layers, such as the sending and receiving operations in the embodiment of the present application
  • the DU implements the functions of the RLC, MAC, and physical (physical, PHY) layers, such as the action of determining the transmission mode in the embodiments of the present application.
  • the network device 70 may include one or more radio frequency units (RUs), one or more DUs and one or more CUs.
  • the DU may include at least one processor 707 and at least one memory 708
  • the DU may include at least one antenna 705 and at least one radio frequency unit 706
  • the CU may include at least one processor 7022 and at least one memory 7021 .
  • the CU702 may be composed of one or more boards, and the multiple boards may jointly support a wireless access network (such as a 5G network, a 6G network, etc.) with a single access indication, and may also support different access networks respectively.
  • a wireless access network such as a 5G network, a 6G network, etc.
  • Access standard wireless access network such as LTE network, 5G network or 6G network or other networks.
  • the memory 7021 and the processor 7022 may serve one or more single boards. That is to say, the memory and processor can be provided separately on each single board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits may also be provided on each single board.
  • the DU701 can be composed of one or more single boards, and multiple single boards can jointly support a wireless access network (such as 5G network, 6G network, etc.) Access to the network (such as LTE network, 5G network or 6G network or other networks).
  • the memory 708 and processor 707 may serve one or more single boards. That is to say, the memory and processor can be provided separately on each single board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits may also be provided on each single board.
  • FIG. 8 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • the terminal device is applicable to the system shown in FIG. 1 , and performs the functions of the terminal device in the method embodiments described in the foregoing FIGS. 3 to 4 .
  • FIG. 8 only shows the main components of the terminal device.
  • the terminal device 80 includes a processor, a memory, a control circuit, an antenna, and an input and output device.
  • the processor is mainly used to process communication protocols and communication data, control the entire terminal device, execute software programs, and process data of software programs, for example, to support the terminal device to execute the method embodiments described in FIG. 3 to FIG. 4 above. actions described in .
  • the memory is mainly used to store software programs and data.
  • the control circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal.
  • the control circuit together with the antenna can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users.
  • the processor can read the software program in the memory, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.
  • FIG. 8 only shows one memory and one processor.
  • the memory may also be referred to as a storage medium or a storage device or the like.
  • the memory may be a storage element on the same chip as the processor, that is, an on-chip storage element, or an independent storage element, which is not limited in this embodiment of the present application.
  • the terminal device may include a baseband processor and a central processing unit.
  • the baseband processor is mainly used to process communication protocols and communication data
  • the central processing unit is mainly used to control the entire terminal device. , execute the software program, and process the data of the software program.
  • the processor in FIG. 8 may integrate the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit may also be independent processors, interconnected by technologies such as a bus.
  • a terminal device may include multiple baseband processors to adapt to different network standards, a terminal device may include multiple central processors to enhance its processing capability, and various components of the terminal device may be connected through various buses.
  • the baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the function of processing the communication protocol and communication data may be built in the processor, or may be stored in the memory in the form of a software program, and the processor executes the software program to realize the baseband processing function.
  • an antenna and a control circuit with a transceiving function may be regarded as the transceiving unit 801 of the terminal device 80, for example, used to support the terminal device to perform a receiving function and a transmitting function.
  • the processor 802 having the processing function is regarded as the processing unit 802 of the terminal device 80.
  • the terminal device 80 includes a transceiver unit 801 and a processing unit 802 .
  • the transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, or the like.
  • the device used for realizing the receiving function in the transceiver unit 801 may be regarded as a receiving unit, and the device used for realizing the sending function in the transceiver unit 801 may be regarded as a sending unit, that is, the transceiver unit 801 includes a receiving unit and a sending unit,
  • the receiving unit may also be called a receiver, an input port, a receiving circuit, etc.
  • the sending unit may be called a transmitter, a transmitter or a transmitting circuit, and the like.
  • the processor 802 may be configured to execute the instructions stored in the memory, so as to control the transceiver unit 801 to receive signals and/or send signals, so as to complete the functions of the terminal device in the foregoing method embodiments.
  • the processor 802 also includes an interface for implementing signal input/output functions.
  • the function of the transceiver unit 801 can be considered to be implemented by a transceiver circuit or a dedicated chip for transceiver.
  • Embodiments of the present application further provide a computer-readable storage medium for storing computer software instructions that need to be executed to execute the above-mentioned processor, which includes a program to be executed to execute the above-mentioned processor.
  • An embodiment of the present application further provides a communication system, including a communication apparatus for implementing the functions of terminal equipment in the embodiments of FIG. 3 to FIG. 4 and a communication apparatus for implementing the functions of network equipment in the embodiments of FIG. 3 to FIG. 4 .
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • computer-usable storage media including, but not limited to, disk storage, CD-ROM, optical storage, etc.

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Abstract

本申请提供一种通信方法及装置，用于提高终端设备的通信性能。该方法包括：确定以跳频传输方式传输；当以重复传输的方式传输时，以时隙间跳频且重复传输的方式发送随机接入过程中的第三消息(Msg3)或消息A(MsgA)；和/或，当以不重复传输的方式传输时，以时隙内跳频且不重复传输的方式发送Msg3或MsgA。通过将重复传输与时隙间跳频进行组合，将不重复传输与时隙内跳频进行组合，使得终端设备在确定以重复传输的方式传输时可以采用时隙间跳频且重复传输的方式收发信令，在确定以不重复传输的方式传输时可以采用时隙内跳频且不重复传输的方式收发信令，从而提升终端设备的跳频增益以及传输性能。

Description

一种通信方法及装置
相关申请的交叉引用
本申请要求在2021年04月02日提交中国专利局、申请号为202110359692.9、申请名称为“一种通信方法及装置”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。
技术领域
本申请涉及通信技术领域，尤其涉及一种通信方法及装置。
背景技术
在移动通信系统中，终端设备需要通过随机接入过程建立与网络设备的无线连接，从而实现上行同步。随着通信标准的演进，通信标准除了支持传统(legacy)终端设备以外，还将支持比传统终端设备的能力低的终端设备，该类型的终端设备可以称为低能力(reduced capability，REDCAP)终端设备。REDCAP终端设备主要特征是终端能力的降低或受限，例如，带宽能力受限，相比于传统终端设备，最大带宽将降低至20MHz，又例如节能终端设备。由于该类终端设备的带宽、接收或者发送天线等能力较小，导致该类终端设备与网络设备之间的通信性能较差，例如，在随机接入过程中，终端设备通过第三消息(Msg3)或者消息A(MsgA)发送无线资源控制(radio resource control，RRC)建立连接请求，当终端设备处在小区边缘区域或者覆盖受限区域时，Msg3传输的性能比较差，可能导致终端设备无法接入到网络中，因此如何提高终端设备的通信性能称为亟需解决的技术问题。
发明内容
本申请提供一种通信方法及装置，用于提高终端设备的通信性能。
第一方面，本申请提供一种通信方法，该方法的执行主体可以是终端设备，也可以是芯片或电路。方法包括：确定以跳频传输方式传输；当以重复传输的方式传输时，以时隙间跳频且重复传输的方式发送第一信令；和/或，当以不重复传输的方式传输时，以时隙内跳频且不重复传输的方式发送第一信令。
本申请实施例中通过将重复传输与时隙间跳频进行组合，将不重复传输与时隙内跳频进行组合，使得终端设备在确定以重复传输的方式传输时可以采用时隙间跳频且重复传输的方式收发信令，从而可以同时获得跳频增益和时域联合信道估计增益，从而可以进一步提升通信性能。而在确定以不重复传输的方式传输时可以采用时隙内跳频且不重复传输的方式收发信令，从而可以获得跳频增益，提升通信性能。通过上述组合可以使得终端设备在通信获得较大的增益，从而使得通信性能得到一个较大的提升，并且可以节省信令开销。
以第一信令为Msg3为例，相比于目前Msg3以不重复传输的方式进行发送，本申请实施例中终端设备可以以重复传输以及时隙间跳频的方式发送Msg3，使得网络设备可以准确的接收Msg3，使得终端设备处在小区边缘区域或者覆盖受限区域时也可以与网络设 备之间建立RRC连接，从而终端设备和网络设备之间可以通过RRC连接进行通信。应理解，这里仅是以Msg3为例进行说明，第一信令也可以为其他上行信令，本申请不对第一信令进行具体限定。
在一种可能的设计中，可以根据第一信息或者预定义规则确定是否以重复传输的方式传输。通过上述方式，使得终端设备与网络设备采用相同的传输方式传输，从而可以避免由于传输方式不一致导致的通信错误。
在一种可能的设计中，根据第二信息或者预定义规则确定以跳频传输方式传输。通过上述方式，使得终端设备与网络设备采用相同的传输方式传输，从而可以避免通信出现错误。
在一种可能的设计中，以时隙间跳频且重复传输的方式发送第一信令，包括：每进行P次重复传输后，以进行时隙间跳频的方式重复发送第一信令，其中，P为正整数。通过上述方式可以同时获得跳频增益和时域联合信道估计增益，从而可以进一步提升通信性能。
在一种可能的设计中，跳频包括BWP间跳频和/或BWP内跳频。
在一种可能的设计中，以时隙内跳频且不重复传输的方式发送第一信令，包括：以时隙内跳频且BWP内跳频的方式发送第一信令。由于进行BWP间跳频时，终端设备需要进行射频重调(RF retuning)，在射频重调期间终端设备不能进行发送或者接收，上述设计中在不重复传输时此采用BWP内跳频的方式，从而可以避免BWP间跳频导致的传输性能下降。
在一种可能的设计中，方法还包括：接收来自网络设备的随机接入响应，随机接入响应中的上行链路授权指示如下至少一项：第一信息、第二信息、第三信息、第四信息；其中，第三信息用于指示BWP间跳频的跳频位置，第四信息用于指示BWP内跳频的跳频位置。
在一种可能的设计中，上行链路授权包括的上行链路跳频指示比特指示第三信息和/或第四信息。
在一种可能的设计中，上行链路授权通过如下一项或多项指示第一信息、第二信息、第三信息、第四信息中的至少一项：调制和编码方案(MCS)指示域中的K1个比特，K1为小于或等于N的正整数，N为MCS指示域的总比特数；频域资源分配(FDRA)指示域中的K2个比特，K2为小于或等于M的正整数，M为FDRA指示域的总比特数。上述方式中通过对上行链路授权中的部分比特进行重解读，使得上行链路授权可以指示额外的信息(如第一信息、第二信息等)。
在一种可能的设计中，K1根据第一信令的MCS最大值确定，MCS最大值为预定义的或者网络设备配置的。上述方式中，通过限制第一信令的MCS最大值，使得MCS指示域可以有多余的比特用于指示额外的信息(如第一信息、第二信息等)。
在一种可能的设计中，K2为根据第一信令的频域资源数最大值确定的，频域资源数最大值为预定义的或者网络设备配置的。上述方式中，通过限制第一信令的频域资源数最大值，使得FDRA指示域可以有多余的比特用于指示额外的信息(如第一信息、第二信息等)。
在一种可能的设计中，第一信令为随机接入过程中的第三消息(Msg3)或者随机接入过程中的消息A(MsgA)。
在一种可能的设计中，重复传输包括：一个传输块在时域上占用一个时隙，且在多个时隙上重复传输；不重复传输包括：一个传输块在时域上占用一个时隙，并在一个时隙内传输。
第二方面，本申请提供一种通信方法，该方法的执行主体可以是终端设备，也可以是芯片或电路。所述方法包括：接收来自网络设备的第五信息，第五信息用于指示如下至少一项：终端设备的MCS最大值，其中，MCS最大值小于第一值，第一值为预定义或者网 络设备配置的MCS最大值；终端设备的传输对应的频域资源数最大值，其中，频域资源数最大值小于带宽部分BWP包括的频域资源的数量；根据第五信息确定第六信息，第六信息包括如下至少一项：用于指示MCS的比特数量、用于指示频域资源数的比特数量。
上述方式中，通过限制第一信令的MCS最大值和频域资源数最大值，使得MCS指示域、FDRA指示域可以有多余的比特用于指示额外的信息(如第一信息、第二信息等)。
在一种可能的设计中，确定第六信息，包括：确定MCS指示域的比特数和/或频域资源分配FDRA指示域的比特数，其中，MCS指示域的比特数为根据终端设备的MCS最大值确定的，FDRA指示域的比特数为根据频域资源数最大值确定的。上述方式中，MCS指示域的比特数可以根据终端设备的MCS的最大值确定，FDRA指示域的比特数可以根据终端设备的传输所使用频域资源的数量的最大值确定。
在一种可能的设计中，确定第六信息，包括：确定MCS指示域中用于指示MCS的比特的数量，和/或，FDRA指示域中用于指示频域资源数的比特的数量。上述方式中，MCS指示域的比特数是预定义或者网络设备配置的，其中用于指示MCS的比特数可以根据终端设备的MCS的最大值确定。FDRA指示域的比特数是预定义或者网络设备配置的，其中用于指示频域资源数的比特数可以根据终端设备的传输的频域资源数最大值确定。
在一种可能的设计中，用于指示MCS的比特数量为根据所述终端设备的MCS最大值确定的。
例如，用于指示MCS的比特的数量满足如下公式：
Figure PCTCN2022083206-appb-000001
其中，k1为用于指示MCS的比特的数量，X为终端设备的MCS最大值。
目前，以MCS指示域的总比特数为4，第一值为9为例，因此若终端设备的MCS最大值等于9，则需要4个比特指示MCS，也就是MCS指示域的所有比特均用于指示MCS。本申请实施例中通过限制终端设备的MCS最大值小于9，使得指示MCS所需要的比特数减少，从而MCS指示域可以用多余的比特指示其他信息。以终端设备的MCS最大值为7为例，则需要
Figure PCTCN2022083206-appb-000002
个比特指示MCS，因此MCS指示域可以用3个比特指示MCS，用剩余的1个比特作为重解读比特来指示其他信息。
在一种可能的设计中，用于指示频域资源数的比特数量为根据所述终端设备的传输对应的频域资源数最大值确定的。
例如，用于指示频域资源数的比特的数量满足如下公式：
Figure PCTCN2022083206-appb-000003
其中，k2为用于指示频域资源数的比特的数量，
Figure PCTCN2022083206-appb-000004
为BWP包括的频域资源的数量，Y为频域资源数最大值。
目前，以FDRA指示域的总比特数为14，
Figure PCTCN2022083206-appb-000005
为例，因此终端设备的传输对应的频域资源数最大值等于273，则FDRA指示域的所有比特均用于指示频域资源信息。本申请实施例中通过限制终端设备的传输对应的频域资源数最大值小于273，使得指示频域资源数所需要的比特数减少，从而FDRA指示域可以用多余的比特指示其他信息。以终端设备的传输对应的频域资源数最大值为31，
Figure PCTCN2022083206-appb-000006
为例，则需要
Figure PCTCN2022083206-appb-000007
Figure PCTCN2022083206-appb-000008
个比特指示MCS，因此FDRA指示域可以用13个比特指示频域资源分配信息，用剩余的1个比特作为重解读比特来指示其他信息。
第三方面，本申请提供一种通信方法，该方法的执行主体可以是网络设备，也可以是芯片或电路。方法包括：确定以跳频传输方式传输；当以重复传输的方式传输时，以时隙间跳频且重复传输的方式接收(或者发送)第一信令；和/或，当以不重复传输的方式传输时，以时隙内跳频且不重复传输的方式接收(或者发送)第一信令。
本申请实施例中通过将重复传输与时隙间跳频进行组合，将不重复传输与时隙内跳频进行组合，使得网络设备在确定以重复传输的方式传输时可以采用时隙间跳频且重复传输 的方式收发信令，在确定以不重复传输的方式传输时可以采用时隙内跳频且不重复传输的方式收发信令，从而可以提升第一信令的跳频增益以及传输性能。
在一种可能的设计中，可以根据预定义规则确定是否以重复传输的方式传输。通过上述方式，使得终端设备与网络设备采用相同的传输方式传输，从而可以避免通信出现错误。
在一种可能的设计中，可以根据预定义规则确定以跳频传输方式传输。通过上述方式，使得终端设备与网络设备采用相同的传输方式传输，从而可以避免通信出现错误。
在一种可能的设计中，以时隙间跳频且重复传输的方式传输第一信令，包括：每进行P次重复传输后，以进行时隙间跳频的方式重复传输第一信令，其中，P为正整数。通过上述方式可以同时获得跳频增益和时域联合信道估计增益，从而可以进一步提升通信性能。
在一种可能的设计中，跳频包括BWP间跳频和/或BWP内跳频。
在一种可能的设计中，以时隙内跳频且不重复传输的方式传输第一信令，包括：以时隙内跳频且BWP内跳频的方式传输第一信令。由于进行BWP间跳频时，终端设备需要进行射频重调(RF retuning)，在射频重调期间终端设备不能进行发送或者接收，上述设计中在不重复传输时此采用BWP内跳频的方式，从而可以避免BWP间跳频导致的传输性能下降。
在一种可能的设计中，方法还包括：发送随机接入响应，随机接入响应中的上行链路授权指示如下至少一项：第一信息、第二信息、第三信息、第四信息，其中，第一信息用于指示是否以重复传输的方式传输，第二信息用于指示以跳频传输方式传输，第三信息用于指示BWP间跳频的跳频位置，第四信息用于指示BWP内跳频的跳频位置。
在一种可能的设计中，上行链路授权包括的上行链路跳频指示比特指示第三信息和/或第四信息。
在一种可能的设计中，上行链路授权通过如下一项或多项指示第一信息、第二信息、第三信息、第四信息中的至少一项：调制和编码方案(MCS)指示域中的K1个比特，K1为小于或等于N的正整数，N为MCS指示域的总比特数；频域资源分配(FDRA)指示域中的K2个比特，K2为小于或等于M的正整数，M为FDRA指示域的总比特数。上述方式中通过对上行链路授权中的部分比特进行重解读，使得上行链路授权可以指示额外的信息(如第一信息、第二信息等)。
在一种可能的设计中，K1根据第一信令的MCS最大值确定，MCS最大值为预定义的或者网络设备配置的。上述方式中，通过限制第一信令的MCS最大值，使得MCS指示域可以有多余的比特用于指示额外的信息(如第一信息、第二信息等)。
在一种可能的设计中，K2为根据第一信令的频域资源数最大值确定的，频域资源数最大值为预定义的或者网络设备配置的。上述方式中，通过限制第一信令的频域资源数最大值，使得FDRA指示域可以有多余的比特用于指示额外的信息(如第一信息、第二信息等)。
在一种可能的设计中，第一信令为随机接入过程中的第三消息(Msg3)或者随机接入过程中的消息A(MsgA)。
在一种可能的设计中，重复传输包括：一个传输块在时域上占用一个时隙，且在多个时隙上重复传输；不重复传输包括：一个传输块在时域上占用一个时隙，并在一个时隙内传输。
第四方面，本申请提供一种通信方法，该方法的执行主体可以是网络设备，也可以是芯片或电路。所述方法包括：确定第五信息，第五信息用于指示如下至少一项：终端设备的MCS最大值，其中，MCS最大值小于第一值，第一值为预定义或者网络设备配置的MCS最大值；终端设备的传输对应的频域资源数最大值，其中，频域资源数最大值小于BWP包括的频域资源的数量；发送第五信息。
上述方式中，通过限制第一信令的MCS最大值和频域资源数最大值，使得MCS指示域、FDRA指示域可以有多余的比特用于指示额外的信息(如第一信息、第二信息等)。
第五方面，本申请还提供一种通信装置，该通信装置具有实现上述第一方面或第二方 面提供的任一方法。该通信装置可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在一种可能的实现方式中，该通信装置包括：处理器，该处理器被配置为支持该通信装置执行以上所示方法中终端设备的相应功能。该通信装置还可以包括存储器，该存储可以与处理器耦合，其保存该通信装置必要的程序指令和数据。可选地，该通信装置还包括接口电路，该接口电路用于支持该通信装置与网络设备等设备之间的通信。
在一种可能的实现方式中，该通信装置包括相应的功能模块，分别用于实现以上方法中的步骤。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的模块。
在一种可能的实施方式中，通信装置的结构中包括处理单元和通信单元，这些单元可以执行上述方法示例中相应功能，具体参见第一方面或第二方面提供的方法中的描述，此处不做赘述。
第六方面，本申请还提供一种通信装置，该通信装置具有实现上述第三方面或第四方面提供的任一方法。该通信装置可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在一种可能的实现方式中，该通信装置包括：处理器，该处理器被配置为支持该通信装置执行以上所示方法中网络设备的相应功能。该通信装置还可以包括存储器，该存储可以与处理器耦合，其保存该通信装置必要的程序指令和数据。可选地，该通信装置还包括接口电路，该接口电路用于支持该通信装置与终端设备等设备之间的通信。
在一种可能的实现方式中，该通信装置包括相应的功能模块，分别用于实现以上方法中的步骤。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的模块。
在一种可能的实施方式中，通信装置的结构中包括处理单元和通信单元，这些单元可以执行上述方法示例中相应功能，具体参见第三方面或第四方面提供的方法中的描述，此处不做赘述。
第七方面，提供了一种通信装置，包括处理器和接口电路，接口电路用于接收来自该通信装置之外的其它通信装置的信号并传输至该处理器或将来自该处理器的信号发送给该通信装置之外的其它通信装置，该处理器通过逻辑电路或执行代码指令用于实现前述第一方面或第二方面以及任意可能的设计中的方法。
第八方面，提供了一种通信装置，包括处理器和接口电路，接口电路用于接收来自该通信装置之外的其它通信装置的信号并传输至该处理器或将来自该处理器的信号发送给该通信装置之外的其它通信装置，该处理器通过逻辑电路或执行代码指令用于实现前述第三方面或第四方面以及任意可能的设计中的方法的功能模块。
第九方面，提供了一种计算机可读存储介质，该计算机可读存储介质中存储有计算机程序或指令，当该计算机程序或指令被处理器执行时，实现前述第一方面至第四方面中任一方面、以及任一方面的任意可能的设计中的方法。
第十方面，提供了一种存储有指令的计算机程序产品，当该指令被处理器运行时，实现前述第一方面至第四方面中任一方面、以及任一方面的任意可能的设计中的方法。
第十一方面，提供一种芯片系统，该芯片系统包括处理器，还可以包括存储器，用于实现前述第一方面至第四方面中任一方面、以及任一方面的任意可能的设计中的方法。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，提供一种通信系统，所述系统包括第一方面所述的装置(如终端设备)以及第三方面所述的装置(如网络设备)。
第十三方面，提供一种通信系统，所述系统包括第二方面所述的装置(如终端设备)以及第四方面所述的装置(如网络设备)。
附图说明
图1为本申请实施例的一种网络系统的架构示意图；
图2为本申请实施例的一种终端设备与网络设备的连接示意图；
图3为本申请实施例的一种通信方法的流程示意图；
图4为本申请实施例的一种重复传输的示意图；
图5为本申请实施例的一种通信装置的结构示意图；
图6为本申请实施例的一种通信装置的结构示意图；
图7为本申请实施例的一种网络设备的结构示意图；
图8为本申请实施例的一种终端设备的结构示意图。
具体实施方式
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，可以为具有无线收发功能的设备或可设置于任一设备中的芯片，也可以称为用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、无线通信设备、用户代理或用户装置。本申请实施例中的终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端等。
网络设备，可以为用于实现接入网设备的功能的装置，接入网设备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，例如可以是NR系统中的下一代基站(next Generation node B，gNB)，可以是LTE系统中的演进型基站(evolutional node B，eNB)等。网络设备，也可以为能够支持网络设备实现该接入网设备功能的装置，例如芯片系统，该装置可以被安装在网络设备中。
2)本申请实施例中的终端设备可以为第一类终端设备或第二类终端设备，或者其他需要进行传输性能增强的终端设备，如NR增强型移动宽带(Enhanced Mobile Broadband，eMBB)终端设备等。第一类终端设备和第二类终端设备之间的区别包括如下至少一项：
1.带宽能力不同。第一类终端设备支持的最大带宽可以大于第二类终端设备支持的最大带宽。例如，第一类终端设备最大可以支持在一个载波上同时使用100MHz频域资源和网络设备进行通信，而第二类终端设备最大可以支持在一个载波上同时使用20MHz或者10MHz或者5MHz频域资源和网络设备进行通信。
2.收发天线个数不同。第一类终端设备的天线配置可以大于第二类终端设备的天线 配置。例如，第一类终端设备支持的最小天线配置可以大于第二类终端设备支持的最大天线配置。
3.上行最大发射功率不同。第一类终端设备的上行最大发射功率可以大于第二类终端设备的上行最大发射功率。
4.第一类终端设备与第二类终端设备对应的协议版本不同。例如NR Rel-15、NR Rel-16终端设备可以认为是第一类终端设备，第二类终端设备可以认为是NR Rel-17终端设备。
5.第一类终端设备与第二类终端设备支持的载波聚合(carrier aggregation，CA)能力不同。例如，第一类终端设备可以支持载波聚合，而第二类终端设备不支持载波聚合；又例如，第二类终端设备与第一类终端设备都支持载波聚合，但是第一类终端设备同时支持的载波聚合的最大个数大于第二类终端设备同时支持的载波聚合的最大个数。
6.第一类终端设备与第二类终端设备的频分双工(frequency division duplex，FDD)能力不同。例如，第一类终端设备可以支持全双工FDD，而第二类终端设备可以仅支持半双工FDD。
7.第二类终端设备和第一类终端设备对数据的处理时间能力不同，例如，第一类终端设备接收下行数据与发送对该下行数据的反馈之间的最小时延小于第二类终端设备接收下行数据与发送对该下行数据的反馈之间的最小时延。
8.第一类终端设备与第二类终端设备对应的上行和/或下行，传输峰值速率不同。
本申请实施例中“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“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的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a,b,或c中的至少一项(个)，可以表示：a,b,c,a-b,a-c,b-c,或a-b-c，其中a,b,c可以是单个，也可以是多个。
以及，除非有相反的说明，本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的大小、内容、顺序、时序、优先级或者重要程度等。例如，第一信息和第二信息，只是为了区分不同的信息，而并不是表示这两个信息的大小、内容、优先级或者重要程度等的不同。
前文介绍了本申请实施例所涉及到的一些名词概念，下面介绍本申请实施例涉及的技术特征。
随机接入过程包括4步随机接入信道(random access channel，RACH)和2步RACH。在4步RACH中网络设备在接收到终端设备发送的随机接入前导码(random access preamble)之后，向终端设备发送随机接入响应(random access response，RAR)，其中包括上行资源分配信息等信息。终端设备基于RAR消息的调度进行发送随机接入过程中的第三消息(Msg 3)，Msg3用于发送RRC建立连接请求。在2步RACH中，终端设备向网络设备发送消息A(MsgA)，MsgA包括两部分，一部分是preamble，另一部分是物理上行共享信道(physical uplink shared channel，PUSCH)载荷(payload)。MsgA消息，可以认为包括preamble和4步RACH中的Msg3所包括的内容。
目前，在初始接入阶段，网络设备配置一个小区公共的BWP用于终端设备进行随机 接入，包括初始下行BWP(initial DL BWP)和初始上行BWP(initial UL BWP)。其中，随机接入过程中的一些上行信道传输参数在初始上行BWP配置，包括第一消息(Msg1的物理随机接入信道(physical random access channel，PRACH))资源、第三消息(Msg3)的物理上行共享信道(physical uplink shared channel，PUSCH)资源、第四消息(Msg4)的混合自动重传请求(hybrid automatic repeat request，HARQ)-肯定确认(acknowledgment，ACK)反馈使用的公共PUCCH资源等。
由于第二类终端设备的带宽能力较小以及其他终端能力缩减，导致第二类终端设备与网络设备之间的通信性能较差，例如，Msg3传输的性能比较差，导致第二类终端设备无法接入到网络中。
基于此，本申请实施例提供一种通信方法及装置，可以解决由于带宽缩减和/或天线缩减以及其他终端能力缩减导致通信性能下降的问题。其中，方法和装置是基于同一构思的，由于方法及装置解决问题的原理相似，因此装置与方法的实施可以相互参见，重复之处不再赘述。
本申请提供的通信方法可以应用于各类通信系统中，例如，可以是物联网(internet of things，IoT)、窄带物联网(narrow band internet of things，NB-IoT)、长期演进(long term evolution，LTE)，也可以是第五代(5G)通信系统，还可以是LTE与5G混合架构、也可以是5G新无线(new radio，NR)系统以及6G或者未来通信发展中出现的新的通信系统等。本申请所述的5G通信系统可以包括非独立组网(non-standalone，NSA)的5G通信系统、独立组网(standalone，SA)的5G通信系统中的至少一种。通信系统还可以是机器到机器(machine to machine，M2M)网络或者其他网络。
参阅图1所示，为本申请实施例提供的一种通信系统，该通信系统包括网络设备和六个终端设备，即UE1～UE6。在该通信系统中，UE1～UE6可以发送上行数据给网络设备，网络设备可以接收UE1～UE6发送的上行数据。此外，UE4～UE6也可以组成一个子通信系统。网络设备可以发送下行信息给UE1、UE2、UE3、UE5，UE5可以基于设备到设备(device-to-device，D2D)技术发送下行信息给UE4、UE6。图1仅是一种示意图，并不对通信系统的类型，以及通信系统内包括的设备的数量、类型等进行具体限定。
示例性的，网络设备与终端设备之间可以通过空口接口连接，例如，网络设备与终端设备之间的连接关系可以如图2所示。
本申请实施例描述的网络架构以及业务场景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和新业务场景的出现，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。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述。为了便于介绍，在下文中，以该方法由网络设备和终端设备执行为例。
在本申请实施例中，“传输”可以理解为发送和/或接收，为了便于对方案的理解，下面以终端设备侧传输指发送、网络设备侧传输指接收，即终端设备发送第一信令、网络设备接收第一信令为例对本申请所述的通信方法进行说明。
参见图3，为本申请提供的一种通信方法的流程示意图。该方法包括：
S301，终端设备确定以跳频传输方式传输。
S302，网络设备确定以跳频传输方式传输。
也就是说，终端设备和网络设备可以确定接下来的一段时间中以跳频的方式发送和/或接收信息，或者确定以跳频的方式发送和/或接收某几个信息。S301和S302为可选步骤，本申请实施例不限定S301和S302的先后顺序。
S303，当以重复传输的方式传输时，终端设备以时隙间跳频且重复传输的方式发送第一信令，和/或，当以不重复传输的方式传输时，以时隙内跳频且不重复传输的方式发送第一信令。
相应的，终端设备以时隙间跳频且重复传输的方式发送第一信令，网络设备以时隙间跳频且重复传输的方式接收第一信令。终端设备以时隙内跳频且不重复传输的方式发送第一信令，网络设备以时隙内跳频且不重复传输的方式接收第一信令。示例性的，第一信令可以为Msg3、MsgA等信令。
应理解，本申请实施例所述的通信方法不仅可以适用于Msg3传输，同样可以适用于其他物理下行共享信道(physical downlink shared channel，PDSCH)或者物理上行共享信道(physical uplink shared channel，PUSCH)、物理下行控制信道(physical downlink control channel，PDCCH)或者物理上行共享信道(physical uplink control channel，PUSCH)、物理随机接入信道(physical random access channel，PRACH)或者物理上行共享信道(physical uplink shared channel，PUSCH)以参考信号(reference signal，RS),例如信息状态信息参考信号(channel state information reference signal,CSI-RS)、探测参考信号(sounding reference signal,SRS)传输场景。
可选的，终端设备也可以采用本申请实施例所述的通信方法进行发送或接收信息、数据等。
需要说明的是，本申请实施例所述的通信方法也可以适应于下行传输。
跳频方式和重复方式包括以下至少一项：不跳频且不重复传输、不跳频且重复传输、时隙间跳频且重复传输、时隙间跳频且不重复传输、时隙内跳频且不重复传输、时隙内跳频且重复传输。也就是说，除了时隙间跳频且重复传输、时隙内跳频且不重复传输这两种传输类型以外，终端设备、网络设备还可以采用其余四种传输类型收发第一信令。
终端设备、网络设备可支持上述六种传输类型中的一种或者几种。
例如终端设备与网络设备可以支持时隙间跳频且重复传输和不跳频且不重复传输，根据预定义或者网路设备配置信息，确定使用时隙间跳频且重复传输或者不跳频且不重复传输。
又例如，终端设备与网络设备可以采用时隙间跳频且不重复传输的方式收发第一信令，在该模式中，一个传输块(transport block，TB)的编码块映射到多个时隙。又例如，终端设备与网络设备可以采用时隙内跳频且重复传输。
又例如，终端设备与网络设备可以采用不跳频且不重复传输的方式收发第一信令。
又例如，终端设备与网络设备可以采用不跳频且重复传输的方式收发第一信令，在该模式中第一信令的重复传输可以在时隙间或者时隙内进行。
一种实施方式中，终端设备可以根据来自网络设备的第一信息确定是否以重复传输的方式发送。或者，终端设备也可以根据预定义规则确定是否以重复传输的方式发送。网络设备可以根据预定义规则确定是否以重复传输的方式接收。该预定规则可以为协议规定是否进行重复传输，或者，协议规定进行重复传输的场景、信令等，和/或，不重复传输的场景、信令等。具体的，第一信息可以指示重复传输的次数，根据所述重复传输的次数指示 是否重复传输，例如重复传输的次数为1，意味着该传输仅进行一次，无需进行重复传输，重复传输的次数大于1，则指示该传输进行所述次数的重复传输，又例如，第一信息指示0可以代表不进行重复传输。
一种实施方式中，终端设备可以根据来自网络设备的第二信息确定以跳频传输方式发送，或者，也可以根据预定义规则确定以跳频传输方式发送。网络设备可以根据预定义规则确定以跳频传输方式接收。示例性的，预定义规则可以为协议规定是否进行跳频传输，或者，协议规定进行跳频传输的场景、信令等，和/或，不跳频传输的场景、信令等。
需要说明的是，本申请实施例不限定终端设备(或网络设备)确定是否以重复传输的方式发送的过程以及确定是否以跳频传输方式发送的过程的先后顺序。
一种示例性说明中，对于单时隙(single slot)传输，不重复传输是指一个传输块(transport block，TB)的编码块(codeword)映射到一个时隙内的时频资源上；重复传输是指一个TB的编码块映射到一个时隙内的时频资源上，并在多个时隙上进行重复映射。对于一个TB在多个slot上传输，是指一个TB的编码块映射到多个时隙内的时频资源上，可理解的，一个TB在多个slot上传输不属于重复传输。
本申请实施例中通过将重复传输与时隙间跳频进行组合，将不重复传输与时隙内跳频进行组合，使得终端设备在确定以重复传输的方式传输时可以采用时隙间跳频且重复传输的方式收发信令，从而可以同时获得跳频增益和时域联合信道估计增益，从而可以进一步提升通信性能。而在确定以不重复传输的方式传输时可以采用时隙内跳频且不重复传输的方式收发信令，从而可以获得调频增益，提升通信性能。通过上述组合可以使得终端设备在通信获得较大的增益，从而使得通信性能得到一个较大的提升，并且可以节省信令开销。
例如，对于带宽能力较小的第二类终端设备，当该终端设备在一个较大的带宽中工作时，可以通过跳频的方式以根据不同的业务特性使用不同频率通信，提高通信效率；且带宽能力受限时，可以通过重传来增强传输性能。
以第一信令为Msg3为例，相比于目前Msg3以不重复传输的方式进行发送，本申请实施例中终端设备可以以重复传输以及时隙间跳频的方式发送Msg3，使得网络设备可以准确的接收Msg3，使得终端设备处在小区边缘区域或者覆盖受限区域时也可以与网络设备之间建立RRC连接，从而终端设备和网络设备之间可以通过RRC连接进行通信。
一种可能的实施方式中，网络设备可以通过如下信令指示上述第一信息、上述第二信息：系统消息块1(system information block 1，SIB1)或者随机接入响应中的上行链路授权(RAR UL grant)中重解读比特或者调度Msg2的下行控制信息(downlink control information，DCI)。
下面对RAR UL grant中重解读比特进行示例性说明。需要说明的是，网络设备通过RAR UL grant中重解读比特对信息进行指示的方式可以单独作为一个方案实施，例如，网络设备可以通过RAR UL grant中重解读比特指示冗余版本、混合自动重传请求进程、天线端口、重复传输信息、跳频信息时域资源分配等调度信息。
示例性的，RAR UL grant内容可以如表1所示。
表1
Figure PCTCN2022083206-appb-000009
Figure PCTCN2022083206-appb-000010
一种举例说明中，RAR UL grant中重解读比特可以包括如下至少一项：MCS指示域中的K1个比特，K1为小于或等于N的正整数，N为MCS指示域的总比特数；FDRA指示域中的K2个比特，K2为小于或等于M的正整数，M为FDRA指示域的总比特数。
其中，K1可以根据第一信令的MCS最大值确定，该MCS最大值为预定义的或者网络设备配置的。K2可以为根据第一信令的频域资源数最大值确定的，该频域资源数最大值为预定义的或者网络设备配置的。
举例说明，上述K1个比特可以为MCS指示域中用于指示MCS的比特以外的比特，例如，MCS指示域包括K1+k1个比特，其中，k1个比特用于指示MCS，剩余K1个比特为RAR UL grant中重解读比特。上述K2个比特可以为FDRA指示域中用于指示频域资源数量的比特以外的比特，例如，FDRA指示域包括K2+k2个比特，其中，k2个比特用于指示频域资源数量，剩余K2个比特为RAR UL grant中重解读比特。
一种可能的实施方式中，终端设备可以通过如下步骤A1和A2确定用于指示MCS的比特的数量，和/或，用于指示频域资源数的比特数量，该实施方式也可以不依赖步骤S301-S303以及上述RAR UL grant中重解读比特方案单独作为一个方案实施：
A1，终端设备接收来自网络设备的第五信息，该第五信息用于指示如下至少一项：终端设备的MCS最大值，其中，该MCS最大值小于第一值，第一值为预定义或者网络设备配置的MCS最大值；终端设备的频域资源数最大值，其中，频域资源数最大值小于BWP包括的频域资源的数量。
示例性的，第一值为网络设备指示的MCS表格中的MCS最大值，例如，可以预定义多个MCS表格，网络设备可以从该多个MCS表格中指示终端设备使用的MCS表格，第一值为该MCS表格的最大值。
示例性的，第五信息可以是网络设备为第二类终端设备、或者其他需要增强传输性能的终端设备配置的MCS最大值和/频域资源数最大值。或者，第五信息可以是网络设备为终端设备的某一次通信配置的MCS最大值和/频域资源数最大值。
A2，终端设备可以根据第五信息确定第六信息，第六信息包括如下至少一项：用于指示MCS的比特数量、用于指示频域资源数的比特数量。
示例性的，终端设备确定的比特数可以是本次MCS指示所用到的比特数，也就是，终端设备确定的比特数可以仅针对本次MCS指示有效。
一种实现方式中，终端设备可以确定MCS指示域的比特数和/或FDRA指示域的比特数，其中，MCS指示域的比特数为根据最大值确定的，FDRA指示域的比特数为根据频域资源数最大值确定的。上述方式中，MCS指示域的比特数可以根据终端设备的MCS的最大值确定，FDRA指示域的比特数可以根据终端设备的传输所使用频域资源的数量的最大值确定。
另一种实现方式中，终端设备可以确定MCS指示域中用于指示MCS的比特的数量， 和/或，FDRA指示域中用于指示频域资源数的比特的数量。上述方式中，MCS指示域的比特数是预定义或者网络设备配置的，其中用于指示MCS的比特数可以根据终端设备的MCS的最大值确定。FDRA指示域的比特数是预定义或者网络设备配置的，其中用于指示频域资源数的比特数可以根据终端设备的传输的频域资源数最大值确定。
示例性的，MCS指示域中用于指示MCS的比特的数量(或者MCS指示域的比特数)可以满足如下公式：
Figure PCTCN2022083206-appb-000011
其中，k1为MCS指示域中用于指示MCS的比特的数量(或者MCS指示域的比特数)，X为终端设备的MCS最大值。例如，如果上述MCS指示域的高位比特不为0，则X取值可以为7。因此，k1可以等于3。目前，以MCS指示域的总比特数为4，第一值为9为例，因此终端设备的MCS最大值等于9，则需要＝4个比特指示MCS，也就是MCS指示域的所有比特均用于指示MCS。本申请实施例中通过限制终端设备的MCS最大值小于9，使得指示MCS所需要的比特数减少，从而MCS指示域可以用多余的比特指示其他信息。以终端设备的MCS最大值为7为例，则需要
Figure PCTCN2022083206-appb-000012
个比特指示MCS，因此MCS指示域可以用3个比特指示MCS，用剩余的1个比特作为重解读比特来指示其他信息。
FDRA指示域中用于指示频域资源数的比特的数量(或者FDRA指示域的比特数)可以满足如下公式：
Figure PCTCN2022083206-appb-000013
其中，k2为FDRA指示域中用于指示频域资源数的比特的数量(或者FDRA指示域的比特数)，
Figure PCTCN2022083206-appb-000014
为BWP包括的频域资源的数量，Y为频域资源数最大值。例如，以
Figure PCTCN2022083206-appb-000015
Figure PCTCN2022083206-appb-000016
为例，频域资源数最大值Y可以为31。目前，以FDRA指示域的总比特数为14，
Figure PCTCN2022083206-appb-000017
Figure PCTCN2022083206-appb-000018
为例，因此终端设备的传输对应的频域资源数最大值等于273，则FDRA指示域的所有比特均用于指示频域资源数。本申请实施例中通过限制终端设备的频域资源数最大值小于273，使得指示频域资源数所需要的比特数减少，从而FDRA指示域可以用多余的比特指示其他信息。以终端设备的传输对应的频域资源数最大值为31，
Figure PCTCN2022083206-appb-000019
为例，则需要
Figure PCTCN2022083206-appb-000020
个比特指示MCS，因此FDRA指示域可以用13个比特指示频域资源分配信息，用剩余的1个比特作为重解读比特来指示其他信息。
基于上述实施方式，K1可以满足如下公式：
Figure PCTCN2022083206-appb-000021
举例说明，可以用MCS指示域的从低位到高位的
Figure PCTCN2022083206-appb-000022
比特指示MCS，用剩余的
Figure PCTCN2022083206-appb-000023
比特指示其他信息。
K2可以满足如下公式：
Figure PCTCN2022083206-appb-000024
举例说明，可以用FDRA域的从低位到高位的
Figure PCTCN2022083206-appb-000025
比特用于指示频域资源分配信息，用剩余的
Figure PCTCN2022083206-appb-000026
比特指示其他信息。
一个实施例中，上述K1个比特以及K2比特可以分开指示，例如，上述K1个比特可以指示第一信息，上述K2个比特指示第二信息。或者，上述K1个比特以及K2比特也可以联合指示。例如，上述K1个比特和上述K2个比特可以联合指示第一信息和第二信息。
应理解，上述举例仅是为了便于对方案的理解，并不对指示形式进行具体限定。
可选的，网络设备也可以采用RAR UL grant中重解读比特与用于调度RAR的DCI、SIB1联合指示的方式指示第一信息和/或第二信息，如，可以通过RAR UL grant中重解读比特以及用于调度RAR的DCI联合指示是否重复传输和/或是否跳频传输。又如，可以通 过RAR UL grant中重解读比特以及SIB1半静态配置是否重复传输和/或是否跳频传输。
一种实现方式中，若终端设备以时隙内跳频且不重复传输的方式发送第一信令，跳频方式可以为BWP内跳频。
一种实现方式中，若终端设备以时隙间跳频且重复传输的方式发送第一信令，跳频方式可以包括BWP间跳频和/或BWP内跳频。BWP间跳频可以指跳频传输的频域位置位于不同BWP上，BWP内跳频可以指跳频传输的频域位置位于同一BWP内。需要说明的是，对于BWP间跳频，由于进行BWP切换，BWP切换期间需要进行射频重调等，因此在BWP间跳频时，相邻的两次传输之间可以存在X符号/时隙时长的间隔，X与终端设备能力相关，在该间隔期间，终端设备不进行数据收发。而对于BWP内跳频，相邻的两次传输之间可以没有间隔，即相邻两次传输时域上可以是连续的，进而提高传输效率。
可选的，网络设备可以通过第二信令指示频域跳频模式为BWP间跳频或者BWP内跳频，第二信令可以通过如下信令指示：系统广播信息、RRC信令、媒体访问控制信道单元(media access control channel element，MAC CE)、DCI等。具体地，若第一信令为Msg3，第二信令可以包括：SIB1或者用于调度Msg2的DCI或者上述RAR UL grant中重解读比特。
可选的，网络设备还可以通过第三信息指示BWP间跳频的跳频位置，和/或，通过第四信息用于指示BWP内跳频的跳频位置。示例性的，网络设备可以通过如下两种实施方式指示第三信息和/或第四信息：
实施方式一，如果频域跳频模式为BWP内跳频，则网络设备可以重用现有RAR UL grant中FDRA指示域的跳频指示比特指示第二次跳频传输的频域偏移(offset)，即网络设备可以通过RAR UL grant中的frequency hopping flag指示域指示终端设备是否进行跳频传输。协议可以预定义几组第二跳传输的频域偏移值，并通过RAR UL grant中FDRA指示域的高位比特进行指示。具体地，频域偏移可以为RB个数，其中，所述频域offset可以为现有技术中预定义的值，也可以是新引入的值。其中新引入的offset值，既可以是协议预定义的值，也可以是网络设备配置的，例如通过如下信令配置：SIB1、用于调度Msg2的DCI、上述RAR UL grant中重解读比特等。
如果频域跳频模式为BWP间跳频，则网络设备可以通过SIB1中预配置一个或者多个跳频的BWP ID序列，并通过用于调度Msg2的DCI、上述RAR UL grant中重解读比特进行指示采用其中哪一个跳频的BWP ID序列。举例说明，网络设备可以预配置四个BWP，当网络设备配置BWP间跳频时，可以配置跳频传输的过程中BWP的ID序列，例如(0，2,1,3)、(2，0,3,1)等。在一种实施方法中，在不同BWP间进行跳频传输时，每次传输在BWP内的相对频域位置可以是相同的。
实施方式二，对于BWP间跳频和BWP内跳频，可以预定义或者网络设备配置下一次跳频传输的频域偏移值。对于BWP内跳频，频域偏移值可以小于当前BWP的大小，对于BWP间跳频，频域偏移值可以大于或等于当前BWP的大小。例如，BWP大小为51RBs，对于BWP内跳频，频域偏移值配置为{10,20,30}，对于BWP间跳频，频域偏移值配置为{60,70,80}。
对于上述两种实施方式，网络设备可以同时配置BWP间跳频和BWP内跳频的频域偏移值，终端设备可以根据确定的频域跳频模式，来确定使用哪组频域偏移值进行跳频传输。例如网络设备配置频域偏移值包括{10,20,30,60,70,80},当终端设备确定为BWP内跳频时， 可使用的偏移值为{10,20,30}，当确定为BWP间跳频时，可使用的偏移值为{60,70,80}。
一种具体的示例中，网络设备可以配置3个BWP，分别为BWP0、BWP1、BWP2。网络设备可以指示终端设备以重复传输以及BWP间跳频的方式发送Msg3。其中，重复传输次数为6次，且每2次重复传输之后进行BWP间跳频，BWP间跳频时的BWP ID序列为(0,1,2)，6次传输的时频域位置如图4所示。
本申请所述的BWP间跳频、BWP内跳频中所述的“BWP”可以理解为频域资源块。需要说明的是，本申请实施例仅以频域资源为BWP为例进行说明，频域资源也可以为其他资源块，不限于BWP这个粒度，例如还可以是由连续的资源块(resource block，RB)组成的频域资源块。
例如，在多个BWP间跳频时，该多个BWP可以具有不同的BWP索引值。或者，该多个BWP可以具有相同的索引值但在不同的频域位置或者具有不同的起始位置。一种示例性说明中，如果所述多个BWP应用于初始接入阶段，例如Msg3，第四消息(Msg4)的混合自动重传请求(hybrid automatic repeat request，HARQ)-肯定确认(acknowledgment，ACK)反馈使用的公共PUCCH资源，PRACH等信道，则所述多个BWP可以为初始上行BWP。
在一个实施例中，网络设备可以为终端设备配置多个BWP。该多个BWP可以具有不同的BWP索引值。或者，该多个BWP可以具有相同的索引值但在不同的频域位置或者具有不同的起始位置。以所述多个BWP为初始上行BWP为例，网络设备可以配置多个初始上行BWP，其中，该多个初始上行BWP包括至少一个第一初始上行BWP和至少一个第二初始上行BWP，所述至少一个第一初始上行BWP是网络设备为第一类终端设备配置的，所述至少一个第二初始上行BWP是网络设备为第二类终端设备配置的。
对于第二类终端设备，若第二类终端设备工作在第二初始上行BWP时即当前激活BWP为第二初始上行BWP，第二类终端设备在第二初始上行BWP进行传输时，所述传输的频域资源分配信息可以通过以下三种方式确定：
1)根据第二初始上行BWP确定，具体地，可以根据第二初始上行BWP的起始位置和第二初始上行BWP包括的RB数中的至少一项确定。
2)根据第一初始上行BWP确定，具体地，可以根据第一初始上行BWP的起始位置和第一初始上行BWP包括的RB数中的至少一项确定。
3)根据第一初始上行BWP和第二初始上行BWP确定，具体地，可以根据第二初始上行BWP的起始位置和第二初始上行BWP与第一初始上行BWP之间的相对位置以及第一初始上行BWP包括的RB数中的至少一项确定。
扩展地，当终端设备确定的传输的频域资源在第二初始上行BWP范围内时，可以不进行射频链路调整，当终端设备确定的数据传输的频域资源在第二初始上行BWP范围外时，可以进行射频链路调整。
需要说明的是，上述配置BWP的方式可以不依赖步骤S301-S303，单独作为一个方案实施。可选的，对于第二类终端设备，无论是初始接入结论和初始接入之后阶段，均可以允许网络设备配置的载波带宽(carrier bandwidth)大于UE最大带宽。具体的，可以有以下两种实施方法：
1)网络设备在初始接入阶段和初始接入之后阶段，分别配置carrier bandwidth，所述carrier bandwidth均允许大于UE最大带宽；
2)网络设备在初始接入阶段配置carrier bandwidth，所述carrier bandwidth允许大于UE最大带宽，在初始接入之后阶段继续使用初始接入阶段配置的carrier bandwidth。
又一种实施方式中，第二类终端可以上报大于其支持的最大带宽的带宽能力。网络设备根据所述带宽能力为第二类终端配置carrier bandwidth。
需要说明的是，上述配置载波带宽的方式可以不依赖步骤S301-S303，单独作为一个方案实施。
一种可能的实施方式中，终端设备以时隙间跳频且重复传输的方式发送第一信令时，可以采用如下方式发送：每进行P次重复传输后，以进行时隙间跳频的方式重复发送第一信令，其中，P为正整数。也就是，终端设备每重复发送P次第一信令后，以进行时隙间跳频的方式重复发送第一信令。示例性的，P的取值可以是网络设备配置的，例如通过如下信令指示：SIB1或者上述RAR UL grant中重解读比特或者调度Msg2的DCI等。或者，P的取值也可以是预定义的，例如，P可以为根据重复传输次数确定的。通过上述方式可以同时获得跳频增益和时域联合信道估计增益，从而可以进一步提升通信性能。
基于与方法实施例的同一构思，本申请实施例提供一种通信装置，该通信装置的结构可以如图5所示，包括通信模块501和处理模块502。
在一种具体的实施方式中，通信装置具体可以用于实现图3～图4的实施例中终端设备执行的方法，该装置可以是终端设备本身，也可以是终端设备中的芯片或芯片组或芯片中用于执行相关方法功能的一部分。其中，通信模块501，用于与网络设备进行通信；处理模块502，用于确定以跳频传输方式传输；以及，用于当以重复传输的方式传输时，以时隙间跳频且重复传输的方式通过通信模块501传输第一信令；和/或，当以不重复传输的方式传输时，以时隙内跳频且不重复传输的方式通过通信模块501传输第一信令。
可选的，处理模块502，还用于：根据第一信息或者预定义规则确定是否以重复传输的方式传输。
可选的，处理模块502，还用于：根据第二信息或者预定义规则确定以跳频传输方式传输。
一种实现方式中，处理模块502，在以时隙间跳频且重复传输的方式通过通信模块501传输第一信令时，具体用于：每进行P次重复传输后，以进行时隙间跳频的方式通过通信模块501重复传输第一信令，其中，P为正整数。
另一种实现方式中，处理模块502，在以时隙内跳频且不重复传输的方式传输第一信令时，具体用于：以时隙内跳频且BWP内跳频的方式通过通信模块501传输第一信令。
可选的，通信模块501，还用于：接收来自网络设备的随机接入响应，随机接入响应中的上行链路授权指示如下至少一项：第一信息、第二信息、第三信息、第四信息，其中，第三信息用于指示BWP间跳频的跳频位置，第四信息用于指示BWP内跳频的跳频位置。
在另一种具体的实施方式中，通信装置具体可以用于实现图3～图4的实施例中网络设备执行的方法，该装置可以是网络设备本身，也可以是网络设备中的芯片或芯片组或芯片中用于执行相关方法功能的一部分。其中，通信模块501，用于与终端设备进行通信；处理模块502，用于：用于确定以跳频传输方式传输；以及，当以重复传输的方式传输时，以时隙间跳频且重复传输的方式通过通信模块501传输第一信令；和/或，当以不重复传输的方式传输时，以时隙内跳频且不重复传输的方式通过通信模块501传输第一信令。
可选的，处理模块502，还用于：根据预定义规则确定是否以重复传输的方式传输。
可选的，处理模块502，还用于：根据预定义规则确定以跳频传输方式传输。
一种实现方式中，处理模块502，在以时隙间跳频且重复传输的方式通过通信模块501传输第一信令时，具体用于：每进行P次重复传输后，以进行时隙间跳频的方式通过通信模块501重复传输第一信令，其中，P为正整数。
另一种实现方式中，处理模块502，在以时隙内跳频且不重复传输的方式通过通信模块501传输第一信令时，具体用于：以时隙内跳频且BWP内跳频的方式通过通信模块501传输第一信令。
可选的，通信模块501，还用于：发送随机接入响应，随机接入响应中的上行链路授权指示如下至少一项：第一信息、第二信息、第三信息、第四信息；其中，第一信息用于指示是否以重复传输的方式传输，第二信息用于指示以跳频传输方式传输，第三信息用于指示BWP间跳频的跳频位置，第四信息用于指示BWP内跳频的跳频位置。
在一种具体的实施方式中，通信装置具体可以用于实现图3～图4的实施例中通过RARUL grant中重解读比特对信息进行指示的方案中终端设备所执行的方法，该装置可以是终端设备本身，也可以是终端设备中的芯片或芯片组或芯片中用于执行相关方法功能的一部分。其中，通信模块501，用于接收来自网络设备的第五信息，第五信息用于指示如下至少一项：终端设备的MCS最大值，其中，MCS最大值小于第一值，第一值为预定义或者网络设备配置的MCS最大值；终端设备的传输对应的频域资源数最大值，其中，频域资源数最大值小于BWP包括的频域资源的数量；处理模块502，用于根据第五信息确定第六信息，第六信息包括如下至少一项：用于指示MCS的比特数量、用于指示频域资源数的比特数量。
可选的，处理模块502，具体用于：确定MCS指示域的比特数和/或FDRA指示域的比特数，其中，MCS指示域的比特数为根据终端设备的MCS最大值确定的，FDRA指示域的比特数为根据频域资源数最大值确定的。
或者，处理模块502，具体用于：确定MCS指示域中用于指示MCS的比特的数量，和/或，FDRA指示域中用于指示频域资源数的比特的数量。
在另一种具体的实施方式中，通信装置具体可以用于实现图3～图4的实施例中通过RAR UL grant中重解读比特对信息进行指示的方案中网络设备所执行的方法，该装置可以是网络设备本身，也可以是网络设备中的芯片或芯片组或芯片中用于执行相关方法功能的一部分。其中，通信模块501，处理模块502，用于确定第五信息，第五信息用于指示如下至少一项：终端设备的MCS最大值，其中，MCS最大值小于第一值，第一值为预定义或者网络设备配置的MCS最大值；终端设备的传输对应的频域资源数最大值，其中，频域资源数最大值小于BWP包括的频域资源的数量；通信模块501，用于发送第五信息。
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。可以理解的是，本申请实施例中各个模块的功能或者实现可以进一步参考方法实施例的相关描述。
一种可能的方式中，通信装置可以如图6所示，该装置可以是通信设备或者通信设备中的芯片，其中该通信设备可以为上述实施例中的终端设备也可以是上述实施例中的网络设备。该装置包括处理器601和通信接口602，还可以包括存储器603。其中，处理模块 502可以为处理器601。通信模块501可以为通信接口602。
处理器601，可以是一个CPU，或者为数字处理单元等等。通信接口602可以是收发器、也可以为接口电路如收发电路等、也可以为收发芯片等等。该装置还包括：存储器603，用于存储处理器601执行的程序。存储器603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603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它介质，但不限于此。
处理器601用于执行存储器603存储的程序代码，具体用于执行上述处理模块502的动作，本申请在此不再赘述。通信接口602具体用于执行上述通信模块501的动作，本申请在此不再赘述。
本申请实施例中不限定上述通信接口602、处理器601以及存储器603之间的具体连接介质。本申请实施例在图6中以存储器603、处理器601以及通信接口602之间通过总线604连接，总线在图6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。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6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。
图7是本申请实施例提供的一种网络设备的结构示意图，如可以为网络设备的结构示意图。该网络设备可应用于如图1所示的系统中，执行上述图3～图4所述方法实施例中网络设备的功能。网络设备70可包括一个或多个分布单元(distributed unit，DU)701和一个或多个集中单元(centralized unit，CU)702。所述DU 701可以包括至少一个天线705，至少一个射频单元706，至少一个处理器707和至少一个存储器708。所述DU 701部分主要用于射频信号的收发以及射频信号与基带信号的转换，以及部分基带处理。CU702可以包括至少一个处理器7022和至少一个存储器7021。CU702和DU701之间可以通过接口进行通信，其中，控制面(Control plan)接口可以为Fs-C，比如F1-C，用户面(User Plan)接口可以为Fs-U，比如F1-U。
所述CU 702部分主要用于进行基带处理，对网络设备进行控制等。所述DU 701与CU 702可以是物理上设置在一起，也可以物理上分离设置的，即分布式基站。所述CU 702为网络设备的控制中心，也可以称为处理单元，主要用于完成基带处理功能。例如所述CU 702可以用于控制网络设备执行上述图3～图4所述方法实施例中关于网络设备的操作流程。
具体的，CU和DU上的基带处理可以根据无线网络的协议层划分，例如分组数据汇聚协议(packet data convergence protocol，PDCP)层及以上协议层的功能设置在CU，PDCP以下的协议层，例如无线链路控制(radio link control，RLC)层和媒体接入控制(medium access control，MAC)层等的功能设置在DU。又例如，CU实现RRC，PDCP层的功能，例如本申请实施例中的收发动作，DU实现RLC、MAC和物理(physical，PHY)层的功能，例如本申请实施例中确定传输方式的动作。
此外，可选的，网络设备70可以包括一个或多个射频单元(RU)，一个或多个DU和一个或多个CU。其中，DU可以包括至少一个处理器707和至少一个存储器708，DU可以包括至少一个天线705和至少一个射频单元706，CU可以包括至少一个处理器7022和至少一个存储器7021。
在一个实例中，所述CU702可以由一个或多个单板构成，多个单板可以共同支持单一 接入指示的无线接入网(如5G网、6G网等)，也可以分别支持不同接入制式的无线接入网(如LTE网，5G网或6G网或其他网)。所述存储器7021和处理器7022可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。所述DU701可以由一个或多个单板构成，多个单板可以共同支持单一接入指示的无线接入网(如5G网、6G网等)，也可以分别支持不同接入制式的无线接入网(如LTE网，5G网或6G网或其他网)。所述存储器708和处理器707可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。
图8是本申请实施例提供的一种终端设备的结构示意图。该终端设备可适用于图1所示出的系统中，执行上述图3～图4所述方法实施例中终端设备的功能。为了便于说明，图8仅示出了终端设备的主要部件。如图8所示，终端设备80包括处理器、存储器、控制电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对整个终端设备进行控制，执行软件程序，处理软件程序的数据，例如用于支持终端设备执行上述图3～图4所述方法实施例中所描述的动作。存储器主要用于存储软件程序和数据。控制电路主要用于基带信号与射频信号的转换以及对射频信号的处理。控制电路和天线一起也可以叫做收发器，主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。
当终端设备开机后，处理器可以读取存储器的软件程序，解释并执行软件程序的指令，处理软件程序的数据。当需要通过无线发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。
本领域技术人员可以理解，为了便于说明，图8仅示出了一个存储器和一个处理器。在实际的终端设备中，可以存在多个处理器和多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以为与处理器处于同一芯片上的存储元件，即片内存储元件，或者为独立的存储元件，本申请实施例对此不做限定。
作为一种可选的实现方式，所述终端设备可以包括基带处理器和中央处理器，基带处理器主要用于对通信协议以及通信数据进行处理，中央处理器主要用于对整个终端设备进行控制，执行软件程序，处理软件程序的数据。图8中的处理器可以集成基带处理器和中央处理器的功能，本领域技术人员可以理解，基带处理器和中央处理器也可以是各自独立的处理器，通过总线等技术互联。本领域技术人员可以理解，终端设备可以包括多个基带处理器以适应不同的网络制式，终端设备可以包括多个中央处理器以增强其处理能力，终端设备的各个部件可以通过各种总线连接。所述基带处理器也可以表述为基带处理电路或者基带处理芯片。所述中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器中，也可以以软件程序的形式存储在存储器中，由处理器执行软件程序以实现基带处理功能。
在本申请实施例中，可以将具有收发功能的天线和控制电路视为终端设备80的收发单元801，例如，用于支持终端设备执行接收功能和发送功能。将具有处理功能的处理器 802视为终端设备80的处理单元802。如图8所示，终端设备80包括收发单元801和处理单元802。收发单元也可以称为收发器、收发机、收发装置等。可选的，可以将收发单元801中用于实现接收功能的器件视为接收单元，将收发单元801中用于实现发送功能的器件视为发送单元，即收发单元801包括接收单元和发送单元，接收单元也可以称为接收机、输入口、接收电路等，发送单元可以称为发射机、发射器或者发射电路等。
处理器802可用于执行该存储器存储的指令，以控制收发单元801接收信号和/或发送信号，完成上述方法实施例中终端设备的功能。所述处理器802还包括接口，用以实现信号的输入/输出功能。作为一种实现方式，收发单元801的功能可以考虑通过收发电路或者收发的专用芯片实现。
本申请实施例还提供了一种计算机可读存储介质，用于存储为执行上述处理器所需执行的计算机软件指令，其包含用于执行上述处理器所需执行的程序。
本申请实施例还提供一种通信系统，包括用于实现图3～图4的实施例中终端设备功能的通信装置和用于实现图3～图4的实施例中网络设备功能的通信装置。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。

Claims (41)

  1. 一种通信方法，其特征在于，所述方法适用于终端设备，所述方法包括：
    确定以跳频传输方式传输；
    当以重复传输的方式传输时，以时隙间跳频且重复传输的方式发送第一信令；和/或
    当以不重复传输的方式传输时，以时隙内跳频且不重复传输的方式发送所述第一信令。
  2. 如权利要求1所述的方法，其特征在于，所述方法还包括：
    根据第一信息或者预定义规则确定是否以重复传输的方式传输；和/或
    根据第二信息或者预定义规则确定以跳频传输方式传输。
  3. 如权利要求1或2所述的方法，其特征在于，所述以时隙间跳频且重复传输的方式发送第一信令，包括：
    每进行P次重复传输后，以进行时隙间跳频的方式重复发送所述第一信令，其中，P为正整数。
  4. 如权利要求1-3任一项所述的方法，其特征在于，所述跳频包括BWP间跳频和/或BWP内跳频。
  5. 如权利要求1或2所述的方法，其特征在于，所述以时隙内跳频且不重复传输的方式发送所述第一信令，包括：
    以时隙内跳频且BWP内跳频的方式发送所述第一信令。
  6. 如权利要求2所述的方法，其特征在于，所述方法还包括：
    接收来自网络设备的随机接入响应，所述随机接入响应中的上行链路授权指示如下至少一项：所述第一信息、所述第二信息、第三信息、第四信息；
    其中，所述第三信息用于指示BWP间跳频的跳频位置，所述第四信息用于指示BWP内跳频的跳频位置。
  7. 如权利要求6所述的方法，其特征在于，所述上行链路授权包括的上行链路跳频指示比特指示所述第三信息和/或所述第四信息。
  8. 如权利要求6所述的方法，其特征在于，所述上行链路授权通过如下一项或多项指示所述第一信息、所述第二信息、所述第三信息、所述第四信息中的至少一项：
    调制和编码方案MCS指示域中的K1个比特，K1为小于或等于N的正整数，所述N为所述MCS指示域的总比特数；
    频域资源分配FDRA指示域中的K2个比特，K2为小于或等于M的正整数，所述M为所述FDRA指示域的总比特数。
  9. 如权利要求8所述的方法，其特征在于，所述K1根据所述第一信令的MCS最大值确定，所述MCS最大值为预定义的或者所述网络设备配置的；和/或
    所述K2为根据所述第一信令的频域资源数最大值确定的，所述频域资源数最大值为预定义的或者所述网络设备配置的。
  10. 如权利要求1-9任一项所述的方法，其特征在于，所述第一信令为随机接入过程中的第三消息Msg3或者随机接入过程中的消息A MsgA。
  11. 一种通信方法，其特征在于，所述方法适用于网络设备，所述方法包括：
    确定以跳频传输方式传输；
    当以重复传输的方式传输时，以时隙间跳频且重复传输的方式接收第一信令；和/或
    当以不重复传输的方式传输时，以时隙内跳频且不重复传输的方式接收所述第一信令。
  12. 如权利要求11所述的方法，其特征在于，所述方法还包括：
    根据预定义规则确定是否以重复传输的方式传输；和/或
    根据预定义规则确定以跳频传输方式传输。
  13. 如权利要求11或12所述的方法，其特征在于，所述以时隙间跳频且重复传输的方式接收第一信令，包括：
    每进行P次重复传输后，以进行时隙间跳频的方式重复接收所述第一信令，其中，P为正整数。
  14. 如权利要求11-13任一项所述的方法，其特征在于，所述跳频包括BWP间跳频和/或BWP内跳频。
  15. 如权利要求11或12所述的方法，其特征在于，所述以时隙内跳频且不重复传输的方式接收所述第一信令，包括：
    以时隙内跳频且BWP内跳频的方式接收所述第一信令。
  16. 如权利要求12-15任一项所述的方法，其特征在于，所述方法还包括：
    发送随机接入响应，所述随机接入响应中的上行链路授权指示如下至少一项：第一信息、第二信息、第三信息、第四信息；
    其中，所述第一信息用于指示是否以重复传输的方式传输，所述第二信息用于指示以跳频传输方式传输，所述第三信息用于指示BWP间跳频的跳频位置，所述第四信息用于指示BWP内跳频的跳频位置。
  17. 如权利要求16所述的方法，其特征在于，所述上行链路授权包括的上行链路跳频指示比特指示所述第三信息和/或所述第四信息。
  18. 如权利要求16所述的方法，其特征在于，所述上行链路授权通过如下一项或多项指示所述第一信息、所述第二信息、所述第三信息、所述第四信息中的至少一项：
    调制和编码方案MCS指示域中的K1个比特，K1为小于或等于N的正整数，所述N为所述MCS指示域的总比特数；
    频域资源分配FDRA指示域中的K2个比特，K2为小于或等于M的正整数，所述M为所述FDRA指示域的总比特数。
  19. 如权利要求18所述的方法，其特征在于，所述K1根据所述第一信令的MCS最大值确定，所述MCS最大值为预定义的或者所述网络设备配置的；和/或
    所述K2为根据所述第一信令的频域资源数最大值确定的，所述频域资源数最大值为预定义的或者所述网络设备配置的。
  20. 如权利要求11-19任一项所述的方法，其特征在于，所述第一信令为随机接入过程中的第三消息Msg3或者随机接入过程中的消息A MsgA。
  21. 一种通信装置，其特征在于，所述装置包括：
    通信模块，用于与网络设备进行通信；
    处理模块，用于确定以跳频传输方式传输；以及
    用于当以重复传输的方式传输时，以时隙间跳频且重复传输的方式通过所述通信模块发送第一信令；和/或，当以不重复传输的方式传输时，以时隙内跳频且不重复传输的方式通过所述通信模块发送所述第一信令。
  22. 如权利要求21所述的装置，其特征在于，所述处理模块，还用于：
    根据第一信息或者预定义规则确定是否以重复传输的方式传输；和/或
    根据第二信息或者预定义规则确定以跳频传输方式传输。
  23. 如权利要求21或22所述的装置，其特征在于，所述处理模块，在以时隙间跳频且重复传输的方式通过所述通信模块发送第一信令时，具体用于：
    每进行P次重复传输后，以进行时隙间跳频的方式通过所述通信模块重复发送所述第一信令，其中，P为正整数。
  24. 如权利要求21-23任一项所述的装置，其特征在于，所述跳频包括BWP间跳频和/或BWP内跳频。
  25. 如权利要求21或22所述的装置，其特征在于，所述处理模块，在以时隙内跳频且不重复传输的方式发送所述第一信令时，具体用于：
    以时隙内跳频且BWP内跳频的方式通过所述通信模块发送所述第一信令。
  26. 如权利要求22所述的装置，其特征在于，所述通信模块，还用于：
    接收来自网络设备的随机接入响应，所述随机接入响应中的上行链路授权指示如下至少一项：所述第一信息、所述第二信息、第三信息、第四信息；
    其中，所述第三信息用于指示BWP间跳频的跳频位置，所述第四信息用于指示BWP内跳频的跳频位置。
  27. 如权利要求26所述的装置，其特征在于，所述上行链路授权包括的上行链路跳频指示比特指示所述第三信息和/或所述第四信息。
  28. 如权利要求26所述的装置，其特征在于，所述上行链路授权通过如下一项或多项指示所述第一信息、所述第二信息、所述第三信息、所述第四信息中的至少一项：
    调制和编码方案MCS指示域中的K1个比特，K1为小于或等于N的正整数，所述N为所述MCS指示域的总比特数；
    频域资源分配FDRA指示域中的K2个比特，K2为小于或等于M的正整数，所述M为所述FDRA指示域的总比特数。
  29. 如权利要求28所述的装置，其特征在于，所述K1根据所述第一信令的MCS最大值确定，所述MCS最大值为预定义的或者所述网络设备配置的；和/或
    所述K2为根据所述第一信令的频域资源数最大值确定的，所述频域资源数最大值为预定义的或者所述网络设备配置的。
  30. 如权利要求21-29任一项所述的装置，其特征在于，所述第一信令为随机接入过程中的第三消息Msg3或者随机接入过程中的消息A MsgA。
  31. 一种通信装置，其特征在于，所述装置包括：
    通信模块，用于与终端设备进行通信；
    处理模块，用于确定以跳频传输方式传输；以及
    当以重复传输的方式传输时，以时隙间跳频且重复传输的方式通过所述通信模块接收第一信令；和/或
    当以不重复传输的方式传输时，以时隙内跳频且不重复传输的方式通过所述通信模块接收所述第一信令。
  32. 如权利要求31所述的装置，其特征在于，所述处理模块，还用于：
    根据预定义规则确定是否以重复传输的方式传输；和/或
    根据预定义规则确定以跳频传输方式传输。
  33. 如权利要求31或32所述的装置，其特征在于，所述处理模块，在以时隙间跳频且重复传输的方式通过所述通信模块接收第一信令时，具体用于：
    每进行P次重复传输后，以进行时隙间跳频的方式通过所述通信模块重复接收所述第一信令，其中，P为正整数。
  34. 如权利要求31-33任一项所述的装置，其特征在于，所述跳频包括BWP间跳频和/或BWP内跳频。
  35. 如权利要求31或32所述的装置，其特征在于，所述处理模块，在以时隙内跳频且不重复传输的方式通过所述通信模块接收所述第一信令时，具体用于：
    以时隙内跳频且BWP内跳频的方式通过所述通信模块接收所述第一信令。
  36. 如权利要求32-35任一项所述的装置，其特征在于，所述通信模块，还用于：
    发送随机接入响应，所述随机接入响应中的上行链路授权指示如下至少一项：第一信息、第二信息、第三信息、第四信息；
    其中，所述第一信息用于指示是否以重复传输的方式传输，所述第二信息用于指示以跳频传输方式传输，所述第三信息用于指示BWP间跳频的跳频位置，所述第四信息用于指示BWP内跳频的跳频位置。
  37. 如权利要求36所述的装置，其特征在于，所述上行链路授权包括的上行链路跳频指示比特指示所述第三信息和/或所述第四信息。
  38. 如权利要求36所述的装置，其特征在于，所述上行链路授权通过如下一项或多项指示所述第一信息、所述第二信息、所述第三信息、所述第四信息中的至少一项：
    调制和编码方案MCS指示域中的K1个比特，K1为小于或等于N的正整数，所述N为所述MCS指示域的总比特数；
    频域资源分配FDRA指示域中的K2个比特，K2为小于或等于M的正整数，所述M为所述FDRA指示域的总比特数。
  39. 如权利要求37所述的装置，其特征在于，所述K1根据所述第一信令的MCS最大值确定，所述MCS最大值为预定义的或者所述网络设备配置的；和/或
    所述K2为根据所述第一信令的频域资源数最大值确定的，所述频域资源数最大值为预定义的或者所述网络设备配置的。
  40. 如权利要求31-39任一项所述的装置，其特征在于，所述第一信令为随机接入过程中的第三消息Msg3或者随机接入过程中的消息A MsgA。
  41. 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用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行如权利要求1～10中任意一项所述的方法，或者使得所述计算机执行如权利要求11～20中任意一项所述的方法。
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