WO2020192481A1 - 通信方法和装置 - Google Patents

通信方法和装置 Download PDF

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Publication number
WO2020192481A1
WO2020192481A1 PCT/CN2020/079607 CN2020079607W WO2020192481A1 WO 2020192481 A1 WO2020192481 A1 WO 2020192481A1 CN 2020079607 W CN2020079607 W CN 2020079607W WO 2020192481 A1 WO2020192481 A1 WO 2020192481A1
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WO
WIPO (PCT)
Prior art keywords
resources
multiplexing
division multiplexing
transmission blocks
multiplexing mode
Prior art date
Application number
PCT/CN2020/079607
Other languages
English (en)
French (fr)
Inventor
张荻
刘鹍鹏
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
Priority claimed from CN201910760399.6A external-priority patent/CN111757500A/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP20778175.8A priority Critical patent/EP3937564A4/en
Publication of WO2020192481A1 publication Critical patent/WO2020192481A1/zh
Priority to US17/486,621 priority patent/US20220015085A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path

Definitions

  • This application relates to the field of communication, and in particular to a communication method and device.
  • the first type of reference signal is used for channel estimation, so that the received signal containing control information or data information can be coherently demodulated;
  • the second type of reference signal is used for channel status or channel quality Measurement, so as to realize the scheduling of the terminal equipment, for example, the channel state information reference signal (CSI-RS).
  • the terminal device can obtain the spatial characteristic parameter according to the CSI-RS.
  • the network device can indicate space-related parameter information (such as transmission configuration indicator (TCI) information or quasi-collocation (QCL) information) to the terminal device to assist in describing the receiving and sending process of the terminal device.
  • TCI transmission configuration indicator
  • QCL quasi-collocation
  • NR new radio
  • URLLC ultra-reliable low latency communication
  • multiple transmission blocks TB
  • the repeated TB can be sent according to multiple spatial related parameter information.
  • the above-mentioned space-related parameter information can only be mapped to one TB.
  • the network device instructs multiple space-related parameter information to be used to transmit multiple repeated TBs, the network device and terminal device cannot determine the multiple spatial correlations.
  • the mapping relationship between parameter information and multiple TBs means that it is not known which TB block is received or sent according to which space-related parameter information.
  • the embodiments of the present application provide a communication method and device, which are used for network equipment and terminal equipment to determine the mapping relationship between space-related parameters and transmission blocks when transmission blocks are repeatedly sent.
  • a communication method including: receiving first indication information, where the first indication information is used to indicate the reception of K spatial related parameters of N transport blocks, where the N transport blocks are the same transmission Block, K and N are integers greater than 1, and K ⁇ N; determine the mapping relationship between K spatial related parameters and N transport blocks; receive N transport blocks according to the mapping relationship.
  • the network device sends the first indication information to the terminal device. Accordingly, the terminal device receives the first indication information from the network device, and the first indication information is used to indicate to receive K spaces of N transmission blocks Related parameters.
  • the network equipment and the terminal equipment determine the mapping relationship between K spatial related parameters and N transmission blocks.
  • the network device sends N transmission blocks according to the mapping relationship, and correspondingly, the terminal device receives N transmission blocks according to the mapping relationship. Or, the terminal device sends N transmission blocks according to the mapping relationship, and accordingly, the network device receives N transmission blocks according to the mapping relationship.
  • the network device and the terminal device learn according to which space-related parameter to send or receive which transmission block according to the mapping relationship, so as to ensure reliable transmission of data.
  • determining the mapping relationship between the K spatial related parameters and the N transmission blocks includes: determining the mapping relationship between the K spatial related parameters and the N transmission blocks according to the multiplexing mode of the N transmission blocks, where ,
  • the multiplexing mode includes at least one of space division multiplexing, time division multiplexing, and frequency division multiplexing.
  • Time division multiplexing can effectively reduce frequent beam switching.
  • the frequency division multiplexing method because the channel characteristics of the transmission blocks close to the frequency domain are more similar, a better transmission block combination effect can be obtained.
  • the frequency division multiplexing method can complete the transmission of the transmission block faster and reduce Transmission delay.
  • the multiplexing mode of space division multiplexing can complete the transmission delay of the transmission block faster, and can also improve the system performance.
  • N transmission blocks adopt a multiplexing mode
  • N transmission blocks include K groups of transmission blocks
  • the mapping relationship between K spatial related parameters and N transmission blocks includes: according to the first order
  • the arranged K spatial related parameters are sequentially mapped to K groups of transmission blocks arranged in an order corresponding to a multiplexing mode.
  • the mapping relationship between the K spatial related parameters and the N transmission blocks includes: sequentially mapping the K spatial related parameters arranged in a first order to the N transmission blocks.
  • the spatial correlation parameters are arranged in the first order.
  • the mapping relationship between the K spatial related parameters and the N transmission blocks includes: mapping the i-th spatial related parameter of the K spatial related parameters arranged in a first order to the N transmission blocks
  • This embodiment describes the mapping relationship between each spatial related parameter and a single transmission block. It should be noted that when K ⁇ N, one space-related parameter can be mapped to multiple transmission blocks, which ensures that each transmission block has a corresponding space-related parameter.
  • N transmission blocks adopt a multiplexing mode, and the N transmission blocks are arranged in an order corresponding to a multiplexing mode.
  • At least two multiplexing modes are used for N transmission blocks, at least two multiplexing modes include the first multiplexing mode, and N transmission blocks include M groups of transmission blocks, and M is a positive integer.
  • the transmission blocks in the group transmission block are arranged in the order corresponding to the first multiplexing mode.
  • N transmission blocks adopt two multiplexing modes
  • the M groups of transmission blocks are arranged in an order corresponding to the second multiplexing mode.
  • the first multiplexing mode is space division multiplexing
  • the second multiplexing mode is time division multiplexing or frequency division multiplexing; or, the first multiplexing mode is time division multiplexing, and the second multiplexing mode is time division multiplexing.
  • the method used is frequency division multiplexing; or, the first multiplexing method is frequency division multiplexing, and the second multiplexing method is time division multiplexing.
  • the first multiplexing mode is frequency division multiplexing
  • the second multiplexing mode is time division multiplexing, which is applicable when the terminal device has multiple antenna panels.
  • the multiple antenna panels are activated.
  • the first multiplexing mode is time division multiplexing
  • the second multiplexing mode is frequency division multiplexing. It is applicable when the terminal device has a single antenna panel.
  • the single antenna panel is activated.
  • the N transmission blocks adopt three multiplexing modes, and each group of transmission blocks are first arranged in an order corresponding to the second multiplexing mode and then arranged in an order corresponding to the third multiplexing mode.
  • the first multiplexing mode is space division multiplexing
  • the second multiplexing mode is time division multiplexing
  • the third multiplexing mode is frequency division multiplexing, or the first multiplexing mode is empty.
  • Division multiplexing the second multiplexing mode is frequency division multiplexing
  • the third multiplexing mode is time division multiplexing.
  • the K spatial related parameters arranged in the first order are sequentially mapped to the resources in each group of resources arranged in the order corresponding to the first multiplexing mode, and the mapping is repeated between the groups of resources.
  • the N resources can be arranged in the order of first within the group and then between the groups.
  • the K spatial related parameters arranged in the first order may be sequentially and cyclically mapped to the N resources arranged in this order.
  • the first order is: the identification of the space-related parameters in ascending order, or the identification of the space-related parameters in ascending order, or the K space-related parameters indicated by the first indication information The order of precedence.
  • the sequence corresponding to the multiplexing mode of space division multiplexing is: the index of the demodulation reference signal port from small to large, or the index of the demodulation reference signal port from large to small , Or the index of the demodulation reference signal port group from small to large, or the index of the demodulation reference signal port group from large to small, or the index of the demodulation reference signal port group indicated by the antenna port field from small to large
  • the order of the demodulation reference signal port index indicated by the antenna port field from largest to smallest, or the order of the demodulation reference signal port group index indicated by the antenna port field, or the demodulation reference indicated by the antenna port field The order of the index of the signal port; each or every few demodulation reference signal ports and demodulation reference signal port groups are
  • the sequence corresponding to the multiplexing mode of space division multiplexing is: the index of the demodulation reference signal port from small to large, or the index of the demodulation reference signal port from large to small , Or the index of the demodulation reference signal port group from small to large, or the index of the demodulation reference signal port group from large to small, or the index of the demodulation reference signal port group indicated by the antenna port field from small to large
  • the order of the demodulation reference signal port index indicated by the antenna port field from largest to smallest, or the order of the demodulation reference signal port group index indicated by the antenna port field, or the demodulation reference indicated by the antenna port field The order of the index of the signal port; each or every several demodulation reference signal ports and demodulation reference signal port groups correspond
  • the corresponding order of the time-division multiplexing mode is: the index of the time domain resource from small to large, or the index of the time domain resource from large to small, each time domain
  • the resource is used to carry one of the N transport blocks.
  • the corresponding order of the frequency division multiplexing mode is: the index of the frequency domain resource from small to large, or the index of the frequency domain resource from large to small, where each The frequency domain resources are used to carry one of the N transport blocks.
  • the space-related parameters are space-related information or transmission configuration indication TCI information. That is to say, the implementation manner provided in the embodiments of the present application can be used for PDSCH transmission and PUSCH transmission.
  • the N transmission blocks adopt the multiplexing mode of time division multiplexing and frequency division multiplexing
  • the N transmission blocks include M groups of transmission blocks; the mapping relationship between the K spatial related parameters and the N transmission blocks , Including: mapping the i-th spatial-related parameter in the K spatial-related parameters arranged in the first order to the K*j+i-th group of transmission blocks in the M group of transmission blocks, where i and j are integers, and 1 ⁇ i ⁇ K, 1 ⁇ K*j+i ⁇ M, Indicates rounding up.
  • the mapping relationship between the K spatial related parameters and the N transmission blocks may be configured by the network device, or predefined by the protocol, or determined by the terminal device according to the frequency domain or time domain spacing of the at least two transmission blocks. For example, when the frequency domain or time domain spacing between adjacent transmission blocks in N transmission blocks is greater than the first threshold, the K spatial correlation parameters arranged in the first order may be sequentially mapped to the N transmission blocks, or A method in which the i-th spatial correlation parameter of the K spatial correlation parameters arranged in the first order is mapped to the K*j+i-th transmission block in the N transmission blocks.
  • This method can make the frequency domain or between the transmission blocks When the time domain spacing is larger, better diversity gain is obtained; when the frequency domain or time domain spacing between adjacent transmission blocks in N transmission blocks is less than the first threshold, K spatial correlations arranged in the first order can be used The parameters are sequentially mapped to the K groups of transmission blocks arranged in the order corresponding to a multiplexing method. This method can avoid frequent beam switching and excessive channel estimation when the frequency or time domain spacing between the transmission blocks is small. Thereby reducing the implementation complexity of terminal equipment.
  • a communication method including: sending first indication information, where the first indication information is used to indicate the reception of K spatial related parameters of N transport blocks, where the N transport blocks are the same transmission Block, K and N are integers greater than 1, and K ⁇ N; determine the mapping relationship between K spatial related parameters and N transport blocks; send N transport blocks according to the mapping relationship.
  • the network device sends the first indication information to the terminal device. Accordingly, the terminal device receives the first indication information from the network device, and the first indication information is used to indicate to receive K spaces of N transmission blocks Related parameters. The network device and the terminal device determine the mapping relationship between K spatial related parameters and N transmission blocks.
  • the network device sends N transmission blocks according to the mapping relationship, and correspondingly, the terminal device receives N transmission blocks according to the mapping relationship. Or, the terminal device sends N transmission blocks according to the mapping relationship, and accordingly, the network device receives N transmission blocks according to the mapping relationship.
  • the network device and the terminal device learn according to which space-related parameter to send or receive which transmission block according to the mapping relationship, so as to ensure reliable transmission of data.
  • determining the mapping relationship between the K spatial related parameters and the N transmission blocks includes: determining the mapping relationship between the K spatial related parameters and the N transmission blocks according to the multiplexing mode of the N transmission blocks, where , The multiplexing mode includes at least one of space division multiplexing, time division multiplexing, and frequency division multiplexing.
  • N transmission blocks adopt a multiplexing mode
  • N transmission blocks include K groups of transmission blocks
  • the mapping relationship between K spatial related parameters and N transmission blocks includes: according to the first order
  • the arranged K spatial related parameters are sequentially mapped to K groups of transmission blocks arranged in an order corresponding to a multiplexing mode.
  • the mapping relationship between the K spatial related parameters and the N transmission blocks includes: sequentially mapping the K spatial related parameters arranged in a first order to the N transmission blocks.
  • the spatial correlation parameters are arranged in the first order.
  • the mapping relationship between the K spatial related parameters and the N transmission blocks includes: mapping the i-th spatial related parameter of the K spatial related parameters arranged in a first order to the N transmission blocks
  • This embodiment describes the mapping relationship between each spatial related parameter and a single transmission block.
  • N transmission blocks adopt a multiplexing mode, and the N transmission blocks are arranged in an order corresponding to a multiplexing mode.
  • At least two multiplexing modes are used for N transmission blocks, at least two multiplexing modes include the first multiplexing mode, and N transmission blocks include M groups of transmission blocks, and M is a positive integer.
  • the transmission blocks in the group transmission block are arranged in the order corresponding to the first multiplexing mode.
  • N transmission blocks adopt two multiplexing modes
  • the M groups of transmission blocks are arranged in an order corresponding to the second multiplexing mode.
  • the first multiplexing mode is space division multiplexing
  • the second multiplexing mode is time division multiplexing or frequency division multiplexing; or, the first multiplexing mode is time division multiplexing, and the second multiplexing mode is time division multiplexing.
  • the method used is frequency division multiplexing; or, the first multiplexing method is frequency division multiplexing, and the second multiplexing method is time division multiplexing.
  • the first multiplexing mode is frequency division multiplexing
  • the second multiplexing mode is time division multiplexing, which is applicable when the terminal device has multiple antenna panels.
  • the multiple antenna panels are activated.
  • the first multiplexing mode is time division multiplexing
  • the second multiplexing mode is frequency division multiplexing. It is applicable when the terminal device has a single antenna panel.
  • the single antenna panel is activated.
  • the K spatial related parameters arranged in the first order are sequentially mapped to the resources in each group of resources arranged in the order corresponding to the first multiplexing mode, and the mapping is repeated between the groups of resources.
  • the N resources can be arranged in the order of first within the group and then between the groups.
  • the K spatial related parameters arranged in the first order may be sequentially and cyclically mapped to the N resources arranged in this order.
  • each group of transmission blocks are first arranged in an order corresponding to the second multiplexing mode and then arranged in an order corresponding to the third multiplexing mode.
  • the first multiplexing mode is space division multiplexing
  • the second multiplexing mode is time division multiplexing
  • the third multiplexing mode is frequency division multiplexing, or the first multiplexing mode is empty.
  • Division multiplexing the second multiplexing mode is frequency division multiplexing
  • the third multiplexing mode is time division multiplexing.
  • the first order is: the identification of the space-related parameters in ascending order, or the identification of the space-related parameters in ascending order, or the K space-related parameters indicated by the first indication information The order of precedence.
  • the sequence corresponding to the multiplexing mode of space division multiplexing is: the index of the demodulation reference signal port from small to large, or the index of the demodulation reference signal port from large to small , Or the index of the demodulation reference signal port group from small to large, or the index of the demodulation reference signal port group from large to small, or the index of the demodulation reference signal port group indicated by the antenna port field from small to large Or, the index of the demodulation reference signal port group indicated by the antenna port field in descending order, or the index of the demodulation reference signal port indicated by the antenna port field in descending order, or the antenna
  • the index of the demodulation reference signal port indicated by the port field is in descending order, or the order of the demodulation reference signal port group index indicated by the antenna port field, or the demodulation reference signal indicated by the antenna port field.
  • the order of the index of the ports; each or every few demodulation reference signal ports or demodulation reference signal port groups are used to demodulate one of the N transmission blocks
  • the sequence corresponding to the multiplexing mode of space division multiplexing is: the index of the demodulation reference signal port from small to large, or the index of the demodulation reference signal port from large to small , Or the index of the demodulation reference signal port group from small to large, or the index of the demodulation reference signal port group from large to small, or the index of the demodulation reference signal port group indicated by the antenna port field from small to large
  • the order of the demodulation reference signal port index indicated by the antenna port field from largest to smallest, or the order of the demodulation reference signal port group index indicated by the antenna port field, or the demodulation reference indicated by the antenna port field The order of the index of the signal port; each or every several demodulation reference signal ports and demodulation reference signal port groups correspond
  • the corresponding order of the time-division multiplexing mode is: the index of the time domain resource from small to large, or the index of the time domain resource from large to small, each time domain
  • the resource is used to carry one of the N transport blocks.
  • the corresponding order of the frequency division multiplexing mode is: the index of the frequency domain resource from small to large, or the index of the frequency domain resource from large to small, where each The frequency domain resources are used to carry one of the N transport blocks.
  • the space-related parameters are space-related information or transmission configuration indication TCI information. That is, the implementation manner provided by the embodiment of the present application can be used for both PDSCH transmission and PUSCH transmission.
  • the N transmission blocks adopt the multiplexing mode of time division multiplexing and frequency division multiplexing
  • the N transmission blocks include M groups of transmission blocks; the mapping relationship between the K spatial related parameters and the N transmission blocks , Including: mapping the i-th spatial-related parameter in the K spatial-related parameters arranged in the first order to the K*j+i-th group of transmission blocks in the M group of transmission blocks, where i and j are integers, and 1 ⁇ i ⁇ K, 1 ⁇ K*j+i ⁇ M, Indicates rounding up.
  • the mapping relationship between the K spatial related parameters and the N transmission blocks may be configured by the network device, or predefined by the protocol, or determined by the terminal device according to the frequency domain or time domain spacing of the at least two transmission blocks. For example, when the frequency domain or time domain spacing between adjacent transmission blocks in N transmission blocks is greater than the first threshold, the K spatial correlation parameters arranged in the first order may be sequentially mapped to the N transmission blocks, or A method in which the i-th spatial correlation parameter of the K spatial correlation parameters arranged in the first order is mapped to the K*j+i-th transmission block in the N transmission blocks.
  • This method can make the frequency domain or between the transmission blocks When the time domain spacing is larger, better diversity gain is obtained; when the frequency domain or time domain spacing between adjacent transmission blocks in N transmission blocks is less than the first threshold, K spatial correlations arranged in the first order can be used The parameters are sequentially mapped to the K groups of transmission blocks arranged in the order corresponding to a multiplexing method. This method can avoid frequent beam switching and excessive channel estimation when the frequency or time domain spacing between the transmission blocks is small. Thereby reducing the implementation complexity of terminal equipment.
  • a terminal device including: a processing module and a transceiver module; used to execute the communication method described in the first aspect and any one of its implementation manners.
  • the transceiver module is configured to receive first indication information, where the first indication information is used to indicate the reception of K spatial related parameters of N transmission blocks, where N transmission blocks are the same transmission block, K and N It is an integer greater than 1, and K ⁇ N;
  • the processing module is used to determine the mapping relationship between K spatial related parameters and the N transmission blocks; the transceiver module is also used to receive N transmission blocks according to the mapping relationship.
  • the processing module is specifically configured to: determine the mapping relationship between K spatial related parameters and N transmission blocks according to the multiplexing mode of N transmission blocks, where the multiplexing mode includes space division multiplexing, At least one of time division multiplexing and frequency division multiplexing.
  • a network device including: a processing module and a transceiver module; used to execute the communication method described in the second aspect and any one of its implementation manners.
  • the transceiver module is configured to send first indication information, where the first indication information is used to indicate the reception of K space-related parameters of N transmission blocks, where N transmission blocks are the same transmission block, and K and N Is an integer greater than 1, and K ⁇ N;
  • the processing module is used to determine the mapping relationship between K spatial related parameters and the N transmission blocks; the transceiver module is also used to send N transmission blocks according to the mapping relationship.
  • the processing module is specifically configured to: determine the mapping relationship between K spatial related parameters and N transmission blocks according to the multiplexing mode of N transmission blocks, where the multiplexing mode includes space division multiplexing, At least one of time division multiplexing and frequency division multiplexing.
  • a communication device including a processor and a memory, the memory is used to store a program, and the processor calls the program stored in the memory to execute the communication method as described in the first aspect.
  • a communication device including a processor and a memory, the memory is used to store a program, and the processor calls the program stored in the memory to execute the communication method as described in the second aspect.
  • a computer-readable storage medium stores instructions.
  • the instructions run on a computer or a processor, the computer or the processor executes the first aspect or any of the instructions.
  • a computer program product containing instructions is provided.
  • the instructions run on a computer or a processor
  • the computer or the processor executes the communication method as in the first aspect or any one of its possible implementations.
  • the communication method as in the second aspect or any one of its possible implementation manners.
  • a communication system which includes the terminal device described in the third aspect and the network device described in the fourth aspect, or includes the communication device described in the fifth aspect and the communication device described in the sixth aspect. Mentioned communication device.
  • the technical effects of the third aspect to the ninth aspect may refer to the content of the various possible implementation manners of the first aspect to the second aspect.
  • FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the application
  • FIG. 2 is a first structural diagram of a terminal device according to an embodiment of this application.
  • FIG. 3 is a first structural diagram of a network device provided by an embodiment of this application.
  • FIG. 4 is a schematic diagram of a beam training provided by an embodiment of the application.
  • FIG. 5 is a schematic flowchart of a communication method provided by an embodiment of this application.
  • FIG. 6 is a schematic diagram of a mapping relationship between space-related parameters and transmission blocks according to an embodiment of this application.
  • FIG. 7 is a first schematic diagram of the mapping relationship between spatial related parameters and transmission blocks in a multiplexing manner according to an embodiment of this application;
  • FIG. 8 is a second schematic diagram of the mapping relationship between time and space related parameters and transmission blocks in a multiplexing manner according to an embodiment of this application;
  • FIG. 9 is a third schematic diagram of the mapping relationship between time and space related parameters and transmission blocks in a multiplexing manner according to an embodiment of this application.
  • FIG. 10 is a fourth schematic diagram of the mapping relationship between time and space related parameters and transmission blocks in a multiplexing manner according to an embodiment of this application;
  • FIG. 11 is a fifth schematic diagram of the mapping relationship between time and space related parameters and transmission blocks in a multiplexing manner according to an embodiment of this application;
  • FIG. 12 is a sixth schematic diagram of the mapping relationship between time and space related parameters and transmission blocks in a multiplexing manner according to an embodiment of this application;
  • FIG. 13 is a schematic diagram 7 of the mapping relationship between time and space related parameters and transmission blocks in a multiplexing manner according to an embodiment of this application;
  • FIG. 14 is a schematic diagram 8 of the mapping relationship between time and space related parameters and transmission blocks in a multiplexing manner according to an embodiment of this application;
  • 15 is a schematic diagram 1 of the mapping relationship between time and space related parameters and transmission blocks in two multiplexing modes provided by an embodiment of the application;
  • 16 is a second schematic diagram of the mapping relationship between time and space related parameters and transmission blocks in two multiplexing modes provided by an embodiment of this application;
  • 17A is a third schematic diagram of the mapping relationship between time and space related parameters and transmission blocks in two multiplexing modes provided by an embodiment of the application;
  • FIG. 17B is a fourth schematic diagram of the mapping relationship between time and space related parameters and transmission blocks in two multiplexing modes provided by an embodiment of this application;
  • 18 is a fifth schematic diagram of the mapping relationship between time and space related parameters and transmission blocks in two multiplexing modes provided by an embodiment of this application;
  • FIG. 19 is a first schematic diagram of the mapping relationship between time and space related parameters and transmission blocks in three multiplexing modes provided by an embodiment of the application;
  • 20 is a second schematic diagram of the mapping relationship between time and space related parameters and transmission blocks in three multiplexing modes provided by an embodiment of the application;
  • FIG. 21 is a second structural diagram of a terminal device provided by an embodiment of this application.
  • FIG. 22 is a second structural diagram of a network device provided by an embodiment of this application.
  • TDD time division duplexing
  • FDD frequency division duplexing
  • the embodiments of this application rely on the scenario of the fifth generation (5G) communication network in the wireless communication network. It should be noted that the solutions in the embodiments of this application can also be applied to other wireless communication networks, such as the sixth generation (5G) communication network. For generations of mobile communication systems, the corresponding names can also be replaced by names of corresponding functions in other wireless communication networks.
  • the 5G mobile communication system involved in this application includes a non-standalone (NSA) 5G mobile communication system and/or a standalone (SA) 5G mobile communication system.
  • LTE long term evolution
  • LTE Advanced LTE-A
  • GSM global system for mobile communication
  • UMTS mobile communication system
  • CDMA code division multiple access
  • the communication system 100 provided by the embodiment of the present application includes a network device 101 and terminal devices 102-107.
  • the terminal device involved in the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem.
  • a wireless terminal can communicate with one or more core networks via a radio access network (RAN).
  • the wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal For example, they can be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices that exchange voice and/or data with the wireless access network.
  • Wireless terminal can also be called system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, Remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), user equipment (user device), or user equipment (user equipment).
  • the terminal device may be a high-speed rail communication device 102, a smart air conditioner 103, a smart tanker 104, a mobile phone 105, a smart teacup 106, a printer 107, etc., which are not limited in this application.
  • the network device involved in the embodiments of this application may be a base station, which can be used to convert received air frames and Internet protocol (IP) packets to each other, and act as a router between the wireless terminal and the rest of the access network , Where the rest of the access network can include IP network equipment.
  • the base station can also coordinate the attribute management of the air interface.
  • the base station can be a base transceiver station (BTS) in GSM or CDMA, a base station (NodeB) in wideband code division multiple access (WCDMA), or an evolution in LTE
  • a type base station evolutional Node B, eNB or e-NodeB
  • the above-mentioned base station is only an example, and the network device may also be a relay station, an access point, a vehicle-mounted device, a wearable device, and other types of devices.
  • the terminal device is a mobile phone as an example to illustrate the structure of the terminal device.
  • the terminal device 105 may include: a radio frequency (RF) circuit 110, a memory 120, an input unit 130, a display unit 140, a sensor 150, an audio circuit 160, a wireless fidelity (Wi-Fi) module 170, and a processor 180, Bluetooth module 181, and power supply 190 and other components.
  • RF radio frequency
  • the RF circuit 110 can be used for receiving and sending signals in the process of sending and receiving information or talking. It can receive the downlink data of the base station and then transfer it to the processor 180 for processing; it can send the uplink data to the base station.
  • the RF circuit includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and other devices.
  • the memory 120 can be used to store software programs and data.
  • the processor 180 executes various functions and data processing of the terminal device 105 by running a software program or data stored in the memory 120.
  • the memory 120 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the memory 120 stores an operating system that enables the terminal device 105 to run, such as the one developed by Apple Operating system, developed by Google Open source operating system, developed by Microsoft Operating system, etc.
  • the memory 120 may store an operating system and various application programs, and may also store codes for executing the methods described in the embodiments of the present application.
  • the input unit 130 may be used to receive input digital or character information, and generate signal input related to user settings and function control of the terminal device 105.
  • the input unit 130 may include a touch screen 131 provided on the front of the terminal device 105, and may collect user touch operations on or near it.
  • the display unit 140 (ie, the display screen) may be used to display information input by the user or information provided to the user, and a graphical user interface (GUI) of various menus of the terminal device 105.
  • the display unit 140 may include a display screen 141 provided on the front of the terminal device 105. Among them, the display screen 141 may be configured in the form of a liquid crystal display, a light emitting diode, or the like.
  • the display unit 140 may be used to display various graphical user interfaces described in this application.
  • the touch screen 131 may be overlaid on the display screen 141, or the touch screen 131 and the display screen 141 may be integrated to realize the input and output functions of the terminal device 105. After integration, it may be referred to as a touch display screen.
  • the terminal device 105 may also include at least one sensor 150, such as an acceleration sensor 155, a light sensor, and a motion sensor.
  • the terminal device 105 may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor.
  • the audio circuit 160, the speaker 161, and the microphone 162 can provide an audio interface between the user and the terminal device 105.
  • the audio circuit 160 can transmit the electrical signal converted from the received audio data to the speaker 161, which is converted into a sound signal for output by the speaker 161; on the other hand, the microphone 162 converts the collected sound signal into an electrical signal, and the audio circuit 160 After being received, it is converted into audio data, and then the audio data is output to the RF circuit 110 to be sent to, for example, another terminal, or the audio data is output to the memory 120 for further processing.
  • Wi-Fi is a short-distance wireless transmission technology.
  • the terminal device 105 can help users send and receive e-mails, browse web pages, and access streaming media through the Wi-Fi module 170. It provides users with wireless broadband Internet access.
  • the processor 180 is the control center of the terminal device 105. It uses various interfaces and lines to connect the various parts of the entire terminal, and executes the terminal device by running or executing the software program stored in the memory 120 and calling the data stored in the memory 120. 105 various functions and processing data.
  • the processor 180 may include one or more processing units; the processor 180 may also integrate an application processor and a baseband processor.
  • the application processor mainly processes the operating system, user interface, and application programs.
  • the processor mainly deals with wireless communication. It can be understood that the aforementioned baseband processor may not be integrated into the processor 180.
  • the processor 180 in this application can run an operating system, application programs, user interface display and touch response, and the communication method described in the embodiments of this application.
  • the Bluetooth module 181 is used for information interaction with other Bluetooth devices with Bluetooth modules through the Bluetooth protocol.
  • the terminal device 105 can establish a Bluetooth connection with a wearable electronic device (such as a smart watch) that also has a Bluetooth module through the Bluetooth module 181, so as to perform data interaction.
  • a wearable electronic device such as a smart watch
  • the terminal device 105 also includes a power source 190 (such as a battery) for supplying power to various components.
  • the power supply can be logically connected to the processor 180 through the power management system, so that functions such as charging, discharging, and power consumption can be managed through the power management system.
  • the network device 300 includes: at least one processor 301, at least one memory 302, and at least one communication interface 303. Among them, at least one processor 301, at least one memory 302, and at least one communication interface 303 may be connected by a bus.
  • the memory 302 is used to store computer program codes.
  • the processor 301 is configured to call the computer program code stored in the memory 302 to execute the functions of the network device in the following method embodiments.
  • the communication interface 303 is used to communicate with other communication devices such as terminal equipment.
  • the communication interface 303 can communicate in a wireless communication manner.
  • Control resource set (CORESET):
  • the network device can configure one or more resource sets for the terminal device to send a physical downlink control channel (PDCCH).
  • the network device can send the PDCCH to the terminal device on any control resource set corresponding to the terminal device.
  • the network device may also notify the terminal device of other configuration information of the aforementioned control resource set, such as a search space set.
  • the control resource set in this application may be a CORESET, a control region (control region), or an enhanced physical downlink control channel (ePDCCH) set defined by the 5G mobile communication system.
  • Antenna port is abbreviated as port, which refers to the transmitting antenna recognized by the device, or the transmitting antenna that can be distinguished in space.
  • Each antenna port is used to configure a virtual antenna, each virtual antenna can be a weighted combination of multiple physical antennas, and each antenna port can correspond to a reference signal port.
  • QCL Quasi-collocation
  • the QCL can also be called a quasi co-site, and QCL information is used to assist in describing the beamforming information on the receiving side of the terminal device and the receiving processing flow.
  • the QCL information may indicate the QCL relationship between the target reference signal and the source reference signal, where the target reference signal may include a demodulation reference signal (DMRS), a channel state information reference signal (channel state information reference signal, CSI- RS), etc.; source reference signals can include CSI-RS, tracking reference signal (tracking reference signal, TRS), synchronous signal broadcast channel block (synchronous signal/physical broadcast channel block, SSB), etc.
  • DMRS demodulation reference signal
  • TRS tracking reference signal
  • TRS synchronous signal broadcast channel block
  • SSB synchronous signal/physical broadcast channel block
  • the spatial characteristic parameter includes at least one of the following parameters:
  • Angle of incidence angle of arrival, AoA
  • dominant (dominant) incidence angle average incidence angle
  • exit angle angle of departure, AoD
  • dominant exit angle average Exit angle, power angle spectrum of exit angle
  • terminal transmit beamforming terminal receive beamforming, spatial channel correlation, base station transmit beamforming, base station receive beamforming, average channel gain, average channel delay (average delay), delay Extension (delay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), spatial reception parameters (spatial Rx parameters), etc.
  • the QCL information describes the spatial channel characteristics between the antenna ports of the source reference signal and the target reference signal, and helps the terminal device to complete the receiving side beamforming or receiving processing process according to the QCL information.
  • the network device side can indicate the PDCCH or the physical downlink shared channel (physical downlink shared channel, PDSCH) demodulation reference signal before the terminal device At least one of the multiple reported reference signal resources satisfies the QCL relationship. For example, suppose that the terminal device reports at least one CSI-RS resource index, and each CSI-RS resource index corresponds to one previously established based on the CSI-RS resource measurement A pair of transceiver beams.
  • the QCL information indicated by the network device indicates that the demodulation reference signal of the PDCCH or PDSCH and at least one of the aforementioned CSI-RS resources satisfy the QCL relationship. Since the received beam information of the two reference signals that satisfy the QCL relationship are the same, the terminal device Based on the QCL information and the CSI-RS resource index, the received beam information for receiving the PDCCH or PDSCH can be inferred.
  • the network device can configure at least one type of QCL for the terminal device at the same time, for example, QCL type A+D, QCL type C+D, etc. among them:
  • QCL type A includes: Doppler shift (Doppler shift), Doppler spread (Doppler spread), average channel delay (average delay), and delay spread (delay spread).
  • QCL type B includes: Doppler frequency shift, Doppler spread.
  • QCL type C includes: average channel delay, Doppler shift.
  • QCL type D includes: spatial reception parameters (spatial Rx parameters).
  • the spatial relationship information is used to assist in describing the beamforming information on the transmitting side of the terminal device and the transmission processing flow.
  • the spatial relationship information may indicate the spatial reception parameter relationship between the source reference signal and the target reference signal, where the target reference signal may include DMRS, sounding reference signal (SRS), etc.; the source reference signal may include CSI-RS, SRS, SSB, etc.
  • the spatial characteristic parameters of the source reference signal and the target reference signal that satisfy the spatial relationship information are the same, so that the spatial characteristic parameters of the target reference signal can be inferred based on the source reference signal resource index.
  • the spatial characteristic parameters see the previous description, which will not be repeated here.
  • the spatial relationship information describes the spatial channel characteristics between the antenna ports of the source reference signal and the target reference signal, and helps the terminal device to complete the beamforming or transmission process at the transmitting side according to the spatial relationship information.
  • TCI Transmission configuration indicator
  • the TCI information is used to indicate the QCL relationship between the two reference signals, such as PDCCH/CORESET or the QCL information of the PDSCH.
  • TCI information means that the reference signal included in the TCI meets the QCL relationship with the DMRS of the PDCCH/PDSCH. It is mainly used to indicate that when the PDCCH/PDSCH is received, its spatial reception parameters and other information are the same as the spatial reception parameters of the reference signal included in the TCI Or similar.
  • Synchronous signal broadcast channel block Synchronous signal broadcast channel block (synchronous signal/physical broadcast channel block, SSB):
  • SSB includes at least one of primary synchronization signal (PSS), secondary synchronization signal (SSS), and physical broadcast channel (PBCH), and is mainly used for cell search, cell synchronization, and bearer broadcast Information signal.
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • PBCH physical broadcast channel
  • a beam is a communication resource, and the beam can be a wide beam, a narrow beam, or other types of beams.
  • the beam forming technology may be beamforming technology or other technologies.
  • the beamforming technology may include digital beamforming technology, analog beamforming technology, and hybrid digital/analog beamforming technology. Different beams can be considered as different resources. The same information or different information can be sent through different beams.
  • multiple beams with the same or similar communication characteristics may be regarded as one beam.
  • a beam can correspond to one or more antenna ports, which are used to transmit data channels, control channels, and sounding signals.
  • Transmitting beam may refer to the distribution of signal strength in different directions in space after wireless signals are transmitted through an antenna
  • receiving beam may refer to the signal strength distribution of wireless signals received from the antenna in different directions in space. It can be understood that one or more antenna ports forming a beam can also be regarded as an antenna port set.
  • the beam can be divided into the transmitting beam and the receiving beam of the network device and the transmitting beam and the receiving beam of the terminal device.
  • the transmitting beam of the network device is used to describe the beamforming information on the transmitting side of the network device
  • the receiving beam of the network device is used to describe the beamforming information on the receiving side of the network device
  • the transmitting beam of the terminal device is used to describe the beamforming information on the transmitting side of the terminal device.
  • the receiving beam of the terminal is used to describe the beamforming information on the receiving side of the terminal device. That is, beam is used to describe beamforming information.
  • the beam can correspond to time resources, space resources, and frequency domain resources.
  • the beam may also correspond to a reference signal resource (for example, a reference signal resource for beamforming) or beamforming information.
  • a reference signal resource for example, a reference signal resource for beamforming
  • beamforming information for example, beamforming information
  • the beam may also correspond to the information associated with the reference signal resource of the network device, where the reference signal may be CSI-RS, SSB, DMRS, phase tracking reference signal (PTRS), tracking reference signal (tracking reference signal) , TRS), etc.
  • the information associated with the reference signal resource may be a reference signal resource index, QCL information (especially QCL information of type D), and the like.
  • the reference signal resource index corresponds to a transceiver beam pair established during the previous measurement based on the reference signal, and the terminal device can infer beam information of the transceiver beam pair through the reference signal resource index.
  • the beam may also correspond to a spatial filter (spatial filter/spatial domain filter), a spatial domain transmission filter, a spatial filter, and a spatial transmission filter.
  • the receiving beam can be equivalent to a spatial transmission filter, a spatial transmission filter, a spatial reception filter or a spatial reception filter.
  • the transmission beam may be equivalent to a spatial domain filter, a spatial transmission filter, a spatial transmission filter, or a spatial transmission filter.
  • the information of spatial related parameters is equivalent to a spatial filter (spatial domain transmission/receive filter).
  • the spatial filter generally includes a spatial transmission filter and/or a spatial reception filter.
  • Spatial filters can also be called spatial transmission filters, spatial reception filters, spatial transmission filters, and spatial transmission filters.
  • the receiving beam on the terminal device side and the transmitting beam on the network device side may be downlink spatial filters, and the transmitting beam on the terminal device side and the receiving beam on the network device side may be uplink spatial filters.
  • a channel quality measurement and channel quality measurement result based on beamforming technology is introduced Reporting method, where the channel quality measurement can be based on the synchronization signal or cell-specific reference signal after beamforming; similar to the reporting of CSI information, the report of the channel quality measurement result of the shaped beam can also be reported by the terminal device through the physical uplink control channel ( The physical uplink control channel (PUCCH) or the physical uplink shared channel (physical uplink shared channel, PUSCH) is sent to the network device.
  • the physical uplink control channel (PUCCH) or the physical uplink shared channel (physical uplink shared channel, PUSCH) is sent to the network device.
  • Fig. 4 it is the beam training process of beamforming.
  • Figure 4 (E) is the training process of the transmission beam of the network device.
  • the terminal device selects the better N beams by measuring the multiple beams sent by the network device, and compares the better N beams.
  • the beam measurement information of the beam is reported to the network device.
  • Figure 4 (D) shows the training process of the transmitting beam of the terminal device.
  • the network device selects the better M beams by measuring multiple beams sent by the terminal device, and can pass the network device through one or more beams.
  • the better beam selected in the secondary beam training process is indicated to the terminal device.
  • the beam measurement information is beam state information (BSI), including beam index and reference signal received power (RSRP) of the beam.
  • BCI beam state information
  • RSRP reference signal received power
  • the standard does not directly indicate the specific beam.
  • the transmit beam of the network device is represented by the reference signal resource index.
  • the beam index 1 is described as the reference signal resource index 1 in the standard; the receive beam on the terminal device side passes the QCL information It is indicated by the spatial reception parameter (Spatial Rx parameter), and the beam measurement information (beam state information) is described in the standard as L1-RSRP or L1-SINR related information (L1-RSRP related information).
  • a BPL includes a transmitting beam of a network device and a receiving beam of a terminal device, or a BPL includes a transmitting beam of a terminal device and a receiving beam of a network device.
  • the terminal device realizes the selection of the transmission beam of the network device and/or the reception beam of the terminal based on the beam scanning of the network device; the network device realizes the selection of the transmission beam based on the beam scanning of the terminal device Selection of the transmitting beam of the terminal device and/or the receiving beam of the network device.
  • Beam scanning refers to the process of sending reference signals through different transmitting beams.
  • the transmitting beam may be a transmitting beam of a network device or a transmitting beam of a terminal device.
  • the transmit beam is the transmit beam of the network device, as shown in Figure 4 (E)
  • the network device sends reference signals to the terminal device through different transmit beams, and the terminal device uses the same receive beam to receive the network device through different Transmit the reference signal sent by the beam, determine the optimal transmit beam of the network device based on the received signal, and then send the optimal transmit beam of the network device to the network device, so that the network device can update the transmit beam.
  • the terminal device sends reference signals to the network device through different transmit beams, and the network device uses the same receive beam to receive the terminal device through different According to the reference signal sent by the transmit beam, determine the optimal transmit beam of the terminal device based on the received signal, and then send the optimal transmit beam of the terminal device to the terminal device so that the terminal device can update the transmit beam.
  • the process of determining a better transmitting beam based on the received signal may be called beam matching.
  • the receiving beam may be a receiving beam of a network device or a receiving beam of a terminal device.
  • the terminal device sends a reference signal to the network device through the same transmitting beam, and the network device receives the reference signal sent by the terminal device through different receiving beams. Signal and determine the better receiving beam of the network device based on the received signal, and then the network device updates the receiving beam of the network device according to the better receiving beam.
  • the receiving beam is the receiving beam of the terminal device, as shown in (C) in Figure 4
  • the network device sends the reference signal to the terminal device through the same transmitting beam, and the terminal device receives the signal sent by the network device through different receiving beams.
  • the reference signal is used to determine the better receiving beam of the terminal device based on the received signal, and then the terminal device updates the receiving beam of the terminal device according to the better receiving beam.
  • both the transmitting beam of the network device and the receiving beam of the terminal device may change dynamically.
  • the terminal device may determine the optimal receiving beam based on the received signal.
  • the terminal device may send the beam information of the multiple receiving beams to the network device, and the network device may indicate the receiving beam of the terminal device to the terminal device by sending the beam indication information to the terminal device.
  • the terminal device adopts beamforming in the analog domain, the terminal device can accurately determine the receiving beam of the terminal device based on the beam indication information sent by the network device, thereby saving the beam scanning time of the terminal device and achieving the effect of power saving.
  • the method may include S501-S505, or the method may include S501-S503 and S506-S507.
  • S501-S505 are used for network equipment and terminal equipment for downlink signal/data/channel (such as PDSCH) transmission
  • S501-S503 and S506-S507 are used for network equipment and terminal equipment for uplink signal/data/channel (such as PUSCH) transmission:
  • S501 The network device sends first indication information to the terminal device.
  • the terminal device receives the first indication information from the network device.
  • the first indication information is used to indicate to receive K spatial related parameters of N transport blocks.
  • the spatial correlation parameter refers to the TCI mentioned above.
  • the spatial correlation parameters refer to the aforementioned spatial relation information.
  • the embodiment of the present application takes the spatial correlation parameter being TCI as an example for description, but it is not intended to be limiting.
  • N transmission blocks are the same transmission block, which can be understood as one transmission block being repeated N times, and it can also be understood as a repetition number configured for one transmission block as N, etc., which is not limited in this application.
  • the N transmission blocks can be replaced with transmission blocks carried on N resources.
  • the N resources can carry N repetitions of a transport block.
  • N repetitions of a transport block can be understood as the transmission blocks on the N resources are the same transport block, and can also be understood as the number of repetitions configured for a transport block ( repetition number) is N, etc., which is not limited in this application; or, the N resources can carry one transport block (it can also be understood that a TB is divided into multiple parts and carried on multiple resources); or N resources can carry multiple repetitions of multiple transport blocks. This application does not limit this.
  • N transmission blocks can be replaced with N resources.
  • the multiplexing mode of the transmission block can be replaced with the multiplexing mode of the resource, and the mapping relationship between the space-related parameters and the transmission block can be replaced with the mapping relationship between the space-related parameters and the resources.
  • the mapping relationship between K spatial related parameters and N transmission blocks can be replaced with a mapping relationship between K spatial related parameters and N resources.
  • the transport block used for demodulation can be replaced with a transport block used on the corresponding resource.
  • one of the N transmission blocks can be replaced with one of the N resources. It should be understood that at this time, there is no restriction that the N transmission blocks are the same transmission block.
  • K and N are integers greater than 1, and K ⁇ N. It should be noted that, in the embodiments of the present application, K ⁇ N is taken as an example for description, but it is not intended to be limited thereto.
  • the above-mentioned first indication information may be transmitted through at least one of second indication information, third indication information, and fourth indication information.
  • the second indication information may be carried by radio resource control (radio resource control, RRC) signaling
  • the third indication information may be carried by media access control element (MAC-CE) signaling.
  • the indication information can be carried by downlink control information (DCI) signaling.
  • the first indication information may be jointly indicated by the second indication information, the third indication information, and the fourth indication information.
  • the second indication information is used to indicate multiple candidate spatial related parameters
  • the third indication information is used to indicate multiple active spatial related parameters of the multiple candidate spatial related parameters
  • the fourth indication information is used to indicate multiple activations. K spatial correlation parameters in the spatial correlation parameters.
  • the first indication information may also be transmitted through one of the second indication information, the third indication information, or the fourth indication information. That is, one of the second indication information, the third indication information, or the fourth indication information may be used to indicate K spatial related parameters.
  • the first indication information may also be transmitted through the second indication information and the third indication information.
  • the second indication information may be used to indicate multiple candidate spatial related parameters
  • the third indication information may be used to indicate K spatial related parameters of the multiple candidate spatial related parameters.
  • the first indication information may also be transmitted through the third indication information and the fourth indication information.
  • the third indication information may be used to indicate multiple candidate spatial related parameters
  • the fourth indication information may be used to indicate K spatial related parameters of the multiple candidate spatial related parameters.
  • the first indication information may also be transmitted through the second indication information and the fourth indication information.
  • the second indication information may be used to indicate multiple candidate spatial related parameters
  • the fourth indication information may be used to indicate K spatial related parameters of the multiple candidate spatial related parameters.
  • the first indication information is used to indicate the reception of K space-related parameters of N transmission blocks, and it can also be understood that the first indication information is used to indicate K space-related parameters and N transmission blocks.
  • the relevant parameters are used to receive N transmission blocks.
  • the first indication information is used to indicate to receive K spatial related parameters of N transmission blocks, and it can also be understood that the first indication information is used to indicate K spatial related parameters, and the K spatial related parameters are used to receive N transmission blocks. .
  • the network device determines the mapping relationship between K spatial related parameters and N transmission blocks.
  • the network device may determine the mapping relationship between the K spatial related parameters and the N transmission blocks according to the multiplexing mode of the N transmission blocks.
  • the multiplexing mode of the transport block may include at least one of space division multiplexing (SDM), time division multiplexing (TDM), and frequency division multiplexing (FMD).
  • SDM space division multiplexing
  • TDM time division multiplexing
  • FMD frequency division multiplexing
  • the sorting of N transmission blocks or K spatial parameters mentioned in the embodiments of the present application is only for the convenience of description. In actual applications or standards, the sorting action may be performed, or the sorting may not be performed. Actions. It is understandable that this step S502 can be replaced by the network device obtaining the mapping relationship between K spatial related parameters and N transmission blocks. At this time, the mapping relationship in each embodiment of the present application may be determined by the network device or a specific module inside the network device, or may be obtained by the network device from other network elements.
  • the "mapping relationship between K spatial related parameters and N transmission blocks” can also be described as "the mapping relationship between N transmission blocks and K spatial related parameters"; K spatially related parameters arranged in sequence A are mapped to N transmission blocks arranged in sequence B; it can also be described as N transmission blocks arranged in sequence B are mapped to K spatial related parameters arranged in sequence A. It should be understood that, in the embodiments of the present application, for the convenience of description, K space-related parameters and N transmission blocks are sorted, and it is not intended to limit the sorting actions performed in actual applications or standards, as long as the K space-related parameters and The same mapping relationship of N transmission blocks is within the protection scope of this application.
  • the N transport blocks can be grouped according to the multiplexing mode of the N transport blocks, and mapped to the K space related parameters in the order of the grouping.
  • the N transport blocks and K spatial related parameters may be mapped and then grouped.
  • the mapping relationship between N transmission blocks and K space related parameters mainly includes:
  • the N transmission blocks adopt a multiplexing mode
  • the N transmission blocks include (divided into) K groups of transmission blocks
  • the mapping relationship between the K spatial related parameters and the N transmission blocks includes: The sequentially arranged K spatial related parameters are sequentially mapped to the K groups of transmission blocks arranged in the order corresponding to the one multiplexing mode.
  • each spatial related parameter corresponds to a group of transmission blocks, and the groups are arranged in the order corresponding to the one multiplexing mode. Further, the N transmission blocks may be divided into K groups of transmission blocks according to the sequence corresponding to the multiplexing mode.
  • the N transmission blocks can be equally divided into K groups of transmission blocks according to the order corresponding to the multiplexing mode. It can be understood that each group of transmission blocks has Transmission blocks, the last group of transmission blocks includes Transmission blocks; it can also be understood that the i-th group of transmission blocks includes the Nth transmission block To Transmission blocks, where i is an integer and 1 ⁇ i ⁇ K-1, the last group of transmission blocks, that is, the Kth group of transmission blocks, includes the Nth transmission block Transfer blocks to the Nth transfer block.
  • the above-mentioned mapping method can obtain a better combination of transport blocks.
  • the frequency division multiplexing method can complete the transmission of the transmission block faster and reduce the transmission delay.
  • frequent switching of beam or space related parameters can be reduced, and the implementation complexity of terminal equipment can be reduced.
  • the grouping basis may include: the transmission blocks in the group are continuous in the frequency domain, or QCL-related, or in a subband, or in the A CC, or in a BWP.
  • the grouping basis may include: the transmission blocks in the group are continuous in the time domain, or in a time unit.
  • N transmission blocks adopt the multiplexing mode of time division multiplexing and frequency division multiplexing
  • N transmission blocks include M groups of transmission blocks
  • the mapping relationship between K space related parameters and N transmission blocks includes: Arrange in the first order The i-th spatial-related parameter in the K spatial-related parameters of is mapped to the K*j+i-th group of transmission blocks in the M group of transmission blocks, where i and j are integers, and 1 ⁇ i ⁇ K, 1 ⁇ K *j+i ⁇ M, Indicates rounding up.
  • the N transmission blocks may be divided into M groups of transmission blocks according to the first multiplexing mode, where M is a positive integer, and the M groups of transmission blocks are arranged in an order corresponding to the second multiplexing mode.
  • the first multiplexing mode is time division multiplexing
  • the second multiplexing mode is frequency division multiplexing
  • the first multiplexing mode is frequency division multiplexing
  • the second multiplexing mode is time division multiplexing.
  • N transmission blocks adopt the multiplexing mode of time division multiplexing and frequency division multiplexing the N transmission blocks are divided into M groups of transmission blocks according to the first multiplexing mode; K space-related parameters and N transmission blocks
  • the mapping relationship includes: mapping the i-th spatial-related parameter among the K spatial-related parameters arranged in the first order to the K*j+i-th in the M transmission blocks arranged in the order corresponding to the second multiplexing mode Group transmission block, where i and j are integers, and 1 ⁇ i ⁇ K, 1 ⁇ K*j+i ⁇ M, Represents rounding up, M groups of transmission blocks.
  • the first multiplexing mode is time division multiplexing
  • the second multiplexing mode is frequency division multiplexing
  • the first multiplexing mode is frequency division multiplexing
  • the second multiplexing mode is time division multiplexing.
  • the first multiplexing mode is frequency division multiplexing
  • the second multiplexing mode is time division multiplexing
  • the first multiplexing mode is time division multiplexing
  • the second multiplexing mode is frequency division multiplexing.
  • the number of antenna panels activated by the terminal device can be directly or indirectly indicated by the network device, displayed, implicitly, directly or indirectly reported by the terminal device, or reported by the terminal device according to the capabilities of the terminal device.
  • the first multiplexing mode is frequency division multiplexing
  • the second multiplexing mode is time division multiplexing, which is applicable when the terminal device has a single activated antenna panel.
  • the first multiplexing mode is time division multiplexing
  • the second multiplexing mode is frequency division multiplexing, which is applicable when the terminal device has multiple active antenna panels.
  • the first multiplexing mode is frequency division multiplexing
  • the second multiplexing mode is time division multiplexing. It is suitable when the terminal device has a single antenna panel (panel).
  • the single antenna panel is Active.
  • the first multiplexing mode is time division multiplexing
  • the second multiplexing mode is frequency division multiplexing, which is applicable when the terminal device has multiple antenna panels.
  • the multiple antenna panels are activated.
  • the first multiplexing mode is space division multiplexing
  • the second multiplexing mode is time division multiplexing or frequency division multiplexing; it can also be understood that the K space-related parameters are preferentially mapped to space division multiplexing. Transmission block, this method can obtain better space division multiplexing effect.
  • the first multiplexing mode is time division multiplexing
  • the second multiplexing mode is frequency division multiplexing
  • the K spatial related parameters are preferentially mapped to the transmission block of time division multiplexing. This method can Get better time domain diversity effect.
  • the first multiplexing mode is frequency division multiplexing
  • the second multiplexing mode is time division multiplexing
  • the K spatial-related parameters are preferentially mapped to frequency division multiplexing transmission blocks. This method can Obtain better frequency domain diversity effect, or this method can avoid frequent beam switching.
  • TCI1-TCI2 are mapped to six identical transmission blocks TB1-TB6, and the first group of transmission blocks includes TB1 -TB2, the second group of transmission blocks include TB3-TB4, and the third group of transmission blocks include TB5-TB6, then TCI1 can be mapped to the first group of transmission blocks TB1-TB2, and TCI2 can be mapped to the second group of transmission blocks TB3-TB4, TCI1 is then mapped to the third group of transport blocks TB5-TB6.
  • the multiplexing mode shown in FIG. 6 is the time division multiplexing first and then the frequency division multiplexing. For the multiplexing mode that first uses the frequency division multiplexing and then uses the time division multiplexing, the same applies to the embodiments of the present application. , I won’t repeat it here.
  • TCI1-TCI2 are mapped to six resources R1-R6.
  • the first group of resources includes R1-R2, the second group of resources includes R3-R4, and the third group of resources includes R5-R6, so TCI1 can be mapped to the first group of resources R1 -R2, TCI2 can be mapped to the second group of resources R3-R4, and TCI1 can be mapped to the third group of resources R5-R6.
  • the sixth is frequency division multiplexing
  • the second multiplexing mode is time division multiplexing
  • the first multiplexing mode is time division multiplexing
  • the second multiplexing mode is frequency division multiplexing, which is also applicable to the embodiments of the present application and will not be repeated here.
  • the first order is: the order of the identifiers of the space-related parameters from small to large, or the order of the identifiers of the space-related parameters from large to small, or the sequence of the K space-related parameters indicated by the first indication information .
  • the embodiment of the present application takes the order of the identification of the space-related parameters from small to large as an example for description, but it is not intended to be limiting.
  • the corresponding sequence of the multiplexing mode of space division multiplexing is: the index of the demodulation reference signal port from small to large, or the index of the demodulation reference signal port from large to small, or the order of the demodulation reference signal port group
  • the index of the CDM group of the modulation reference signal is in the descending order, or the index of the demodulation reference signal port group indicated by the antenna port (antenna port) field is in descending order, or the demodulation indicated by the antenna port field
  • the index of the reference signal port group is in descending order, or the index of the demodulation reference signal port indicated by the antenna port field is in descending order, or the index of the demodulation reference signal port indicated by the antenna port field is from The order of large to small, or the order of the index of the demodulation reference signal port group indicated
  • Each or every several demodulation reference signal ports, demodulation reference signal port groups, and demodulation reference signal CDM groups are used to demodulate one of the N transmission blocks.
  • the order of the indexes of the demodulation reference signal ports from small to large is taken as an example for description, but it is not intended to be limited.
  • demodulation reference signal port group in each embodiment of the present application may be a "DMRS CDM group”.
  • CDM group 9 grouping of the DMRS port (port) predefined in the protocol is as follows:
  • DMRS type (type) 1 (supports up to 8 ports): DMRS port ⁇ 0,1,4,5 ⁇ belongs to CDM group 0, DMRS port ⁇ 2,3,6,7 ⁇ belongs to CDM group 1;
  • DMRS type 2 (supports up to 12 ports): DMRS port ⁇ 0,1,6,7 ⁇ belongs to CDM group 0, DMRS port ⁇ 2,3,8,9 ⁇ belongs to CDM group 1, DMRS port ⁇ 4,5, 10,11 ⁇ belongs to CDM group 2.
  • the corresponding sequence of the multiplexing mode of space division multiplexing is: the index of the demodulation reference signal port from small to large, or the index of the demodulation reference signal port from large to small, or the order of the demodulation reference signal port group Index from small to large, or demodulation reference signal port group index from large to small, or the antenna port field indicates the demodulation reference signal port group index from small to large, or antenna port word
  • the index of the demodulation reference signal port group indicated by the field is in descending order, or the index of the demodulation reference signal port indicated by the antenna port field is in descending order, or the demodulation reference indicated by the antenna port field
  • the index of the signal port is in descending order, or the order of the demodulation reference signal port group index indicated by the antenna port field, or the order of the demodulation reference signal port index indicated by the antenna port field; each; Or every few demodulation reference signal ports and demodulation reference signal port groups correspond to one resource among the N resources.
  • the index of the demodulation reference signal port may refer to the DMRS port index.
  • the DMRS port index may be 8, 9, 10, and the DMRS port index is 8, 9, 10, and the DMRS port index is from small to large. The order from largest to smallest is 10, 9, and 8.
  • the demodulation reference signal port group may refer to the DMRS CDM group.
  • the DMRS CDM group includes at most three identifiers 00, 10, and 11, respectively, and the index of the DMRS CDM group is 00, 10 in ascending order. ,11, the index of the DMRS CDM group in descending order is 11, 10, 00.
  • the demodulation reference signal port group may refer to one or more DMRS CDM groups.
  • a DMRS CDM group includes at most three identifiers 00, 10, and 11, respectively, and the index of the DMRS CDM group is in ascending order. It is 00, 10, and 11.
  • the index of the DMRS CDM group is 11, 10, and 00 in descending order.
  • N resources include 2 space division resources (R1 and R2), and K space related parameters are TCI1 and TCI2; among them, space division resource R1 corresponds to all or part of the ports in DMRS CDM group 00, space division resources R2 corresponds to all or part of the ports in DMRS CDM group 01 and 11. Then TCI1 maps to R1, and TCI2 maps to R2.
  • the corresponding sequence of the time-division multiplexing mode is: the index of the time domain resource is from small to large, or the index of the time domain resource is from large to small, and each time domain resource is used to carry the N transmissions.
  • the index of the time domain resource may be a symbol index, a slot index, or a subframe index.
  • the index of the time domain resource may be the index of the start position of the time domain resource carrying the transport block, or the index of the end position of the time domain resource carrying the transport block.
  • the embodiments of the present application are described in the descending order of the indexes of time domain resources, but are not intended to be limiting.
  • index of time domain resources can also be replaced with “index of time units”.
  • the index of the time domain resource may refer to the index of the time domain resource where the transmission block is located, or the index of the time unit may refer to the index of the time unit where the transmission block is located.
  • time unit in this application may be one or more radio frames defined in the LTE or 5G NR system, one or more subframes, one or more time slots, and one or more mini slots (mini slot).
  • one or more orthogonal frequency division multiplexing (OFDM) symbols may also be a time window formed by multiple frames or subframes, such as a system information (SI) window.
  • SI system information
  • the corresponding order of the frequency division multiplexing mode is: the index of the frequency domain resource from small to large, or the index of the frequency domain resource from large to small, where each frequency domain resource is used to carry the One of the N transport blocks.
  • the frequency domain resource index may be a resource block (resource block, RB) index, a subband index where a transmission block is located, a component carrier (CC) index where a transmission block is located, or a bandwidth part (bandwidth part) where the transmission block is located. BWP) index.
  • the index of the frequency domain resource may be the index of the start position of the frequency domain resource carrying the transport block, or the index of the end position of the frequency domain resource carrying the transport block.
  • the multiplexing mode in Fig. 7 is time division multiplexing
  • the multiplexing mode shown in Fig. 8 is frequency division multiplexing
  • the multiplexing mode shown in Fig. 9 is empty.
  • frequent beam switching can be effectively reduced.
  • the frequency division multiplexing method shown in Figure 8 since the channel characteristics of the transmission blocks close to the frequency domain are more similar, a better transmission block combining effect can be obtained.
  • the frequency division multiplexing method can complete the transmission faster Block transmission to reduce transmission delay.
  • the multiplexing mode of space division multiplexing shown in FIG. 9 a better space division multiplexing effect can be obtained.
  • the multiplexing mode in Fig. 7 is time division multiplexing
  • the multiplexing mode shown in Fig. 8 is frequency division multiplexing
  • the multiplexing mode shown in Fig. 9 is empty.
  • frequent beam switching can be effectively reduced.
  • the frequency division multiplexing method shown in Figure 8 because the resource channel characteristics close to the frequency domain are more similar, a better information combination effect can be obtained.
  • the frequency division multiplexing method can complete the transmission block faster Transmission, reduce transmission delay.
  • the multiplexing mode of space division multiplexing shown in FIG. 9 a better space division multiplexing effect can be obtained.
  • N is not divisible by K
  • the number of transmission blocks in each group of transmission blocks may be different.
  • the multiplexing mode is time division multiplexing as an example for description.
  • the mapping relationship between the K space-related parameters and the N transmission blocks includes: sequentially mapping the K space-related parameters arranged in a first order to the N transmission blocks.
  • the K spatial related parameters arranged in the first order are cyclically mapped to the N transmission blocks.
  • the i-th spatial-related parameter in the K spatial-related parameters arranged in the first order is mapped to the K*j+i-th transmission block among the N transmission blocks, where i and j are integers, and 1 ⁇ i ⁇ K, 1 ⁇ K*j+i ⁇ N, Indicates rounding up.
  • one space-related parameter can be mapped to multiple transmission blocks, which can ensure that each transmission block has a corresponding space-related parameter.
  • the N transmission blocks are arranged in an order corresponding to the multiplexing mode.
  • the multiplexing mode in Figure 11 is time division multiplexing
  • the multiplexing mode shown in Figure 12 is frequency division multiplexing
  • the multiplexing mode shown in Figure 13 is empty.
  • TCI1 can be mapped to TB1, TB4
  • TCI2 is mapped to TB2, TB5,
  • TCI3 is mapped to TB3, TB
  • a frequency domain diversity gain can be obtained, especially when the distance between multiple frequency division multiplexing transmission blocks in the frequency domain is greater than a preset threshold.
  • the transmission delay of the transmission block can be completed faster, and the system performance can also be improved.
  • the multiplexing mode in Figure 11 is time division multiplexing
  • the multiplexing mode shown in Figure 12 is frequency division multiplexing
  • the multiplexing mode shown in Figure 13 is empty.
  • the time division multiplexing method shown in FIG. 11 diversity gain can be obtained.
  • frequency domain diversity gain can be obtained, especially when the distance between multiple frequency division multiplexing resources in the frequency domain is greater than a preset threshold.
  • the transmission delay of resources can be completed faster, and system performance can also be improved.
  • N is not divisible by K, the number of resources mapped by each space-related parameter may be different.
  • the multiplexing mode is time division multiplexing as an example.
  • TCI1 can be mapped to R1, R4, R7, and TCI2 can Map to R2, R5, TCI3 can be mapped to R3, R6.
  • N transmission blocks adopt at least two multiplexing modes include the first multiplexing mode
  • the transmission blocks in each group of transmission blocks are in accordance with The order corresponding to the first multiplexing mode is arranged.
  • At least two multiplexing modes are adopted for N transmission blocks, and the at least two multiplexing modes include the first multiplexing mode, and the K spatial-related parameters arranged in the first order are preferentially mapped to each group of transmission blocks.
  • the transmission blocks arranged in the order corresponding to the first multiplexing mode are then mapped between the groups of transmission blocks.
  • the K spatially related parameters arranged in the first order are preferentially mapped to the transmission blocks arranged in the order corresponding to the first multiplexing mode in each group of transmission blocks, and the mapping is repeated between the groups of transmission blocks.
  • N transmission blocks adopt at least two multiplexing modes, and the at least two multiplexing modes include the first multiplexing mode.
  • the N transmission blocks are divided into M groups of transmission blocks according to the first multiplexing mode, and M is positive. Integer, the transmission blocks in each group of transmission blocks are arranged in the order corresponding to the first multiplexing mode.
  • N transmission blocks adopt at least two multiplexing modes, and the at least two multiplexing modes include the first multiplexing mode.
  • the N transmission blocks are divided into M groups of transmission blocks according to the first multiplexing mode, and M is positive.
  • each group of transmission blocks in the M groups of transmission blocks includes at least two transmission blocks, the at least two transmission blocks are transmission blocks multiplexed in the first multiplexing mode, and the at least two transmission blocks correspond to the first multiplexing mode In order.
  • N transmission blocks adopt at least two multiplexing modes, at least two multiplexing modes include the first multiplexing mode, N transmission blocks include M groups of transmission blocks, M is a positive integer, and M groups of transmission blocks At least one group of transmission blocks are multiplexed in a first multiplexing mode and arranged in a sequence corresponding to the first multiplexing mode.
  • the M groups of transmission blocks are arranged in the order corresponding to the second multiplexing mode.
  • the first multiplexing mode is space division multiplexing
  • the second multiplexing mode is time division multiplexing or frequency division multiplexing
  • the first multiplexing mode is time division multiplexing
  • the second multiplexing mode is frequency division multiplexing.
  • the first multiplexing mode is frequency division multiplexing
  • the second multiplexing mode is time division multiplexing.
  • the first multiplexing mode is time division multiplexing
  • the second multiplexing mode is frequency division multiplexing
  • the first multiplexing mode is frequency division multiplexing
  • the second multiplexing mode is time division multiplexing.
  • the number of antenna panels activated by the terminal device can be directly or indirectly indicated by the network device, displayed, implicitly, directly or indirectly reported by the terminal device, or reported by the terminal device according to the capabilities of the terminal device.
  • the first multiplexing mode is time division multiplexing
  • the second multiplexing mode is frequency division multiplexing, which is applicable when the terminal device has a single activated antenna panel.
  • the first multiplexing mode is frequency division multiplexing
  • the second multiplexing mode is time division multiplexing, which is applicable when the terminal device has multiple active antenna panels.
  • the first multiplexing mode is time division multiplexing
  • the second multiplexing mode is frequency division multiplexing. It is applicable when the terminal device has a single antenna panel (panel).
  • the single antenna panel is Active.
  • the first multiplexing mode is frequency division multiplexing
  • the second multiplexing mode is time division multiplexing, which is applicable when the terminal device has multiple antenna panels.
  • the multiple antenna panels are activated.
  • the first multiplexing mode is space division multiplexing
  • the second multiplexing mode is time division multiplexing or frequency division multiplexing; it can also be understood that the K space-related parameters are preferentially mapped to space division multiplexing. Transmission block, this method can obtain better space division multiplexing effect.
  • the first multiplexing mode is time division multiplexing
  • the second multiplexing mode is frequency division multiplexing
  • the K spatial related parameters are preferentially mapped to the transmission block of time division multiplexing. This method can Get better time domain diversity effect.
  • the first multiplexing mode is frequency division multiplexing
  • the second multiplexing mode is time division multiplexing
  • the K spatial-related parameters are preferentially mapped to frequency division multiplexing transmission blocks. This method can Obtain better frequency domain diversity effect, or this method can avoid frequent beam switching.
  • the first multiplexing mode in Figure 15 is space division multiplexing
  • the second multiplexing mode is time division multiplexing.
  • the transmission blocks in each group of transmission blocks are based on space division multiplexing.
  • the multiplexing modes are arranged in the corresponding order, and the M groups of transmission blocks are arranged in the order corresponding to the time-division multiplexing mode.
  • the first multiplexing mode in Figure 16 is space division multiplexing
  • the second multiplexing mode is frequency division multiplexing.
  • the transmission blocks in each group of transmission blocks are arranged in the order corresponding to the multiplexing mode of space division multiplexing.
  • M groups of transmission are arranged in the order corresponding to the frequency division multiplexing mode.
  • TCI1-TCI2 are mapped to four identical transmission blocks TB1-TB4, then the first group of transmission blocks includes TB1 and TB2, and the second group of transmission blocks includes TB3 and TB4, and TB1 and TB2 space division multiplexing, TB3 and TB4 space division multiplexing, time division multiplexing between the first group of transmission blocks and the second group of transmission blocks.
  • TCI1 can be mapped to TB1 and TB3
  • TCI2 can be mapped to TB2 and TB4.
  • the first multiplexing mode adopts space division multiplexing, a better space division multiplexing effect can be obtained, that is, K space related parameters are preferentially mapped to the transmission block of space division multiplexing to obtain better space division multiplexing effect.
  • the first multiplexing mode in Figure 15 is space division multiplexing
  • the second multiplexing mode is time division multiplexing.
  • the transport block TB is replaced by the resource R, and each group
  • the resources in the resources are arranged in the order corresponding to the multiplexing mode of space division multiplexing, and the resources of the M groups are arranged in the order corresponding to the multiplexing mode of time division multiplexing.
  • the first multiplexing mode is space division multiplexing
  • the second multiplexing mode is frequency division multiplexing.
  • the resources in each group of resources are arranged in the order corresponding to the multiplexing mode of space division multiplexing, and the resources of M groups They are arranged in the order corresponding to the frequency division multiplexing mode.
  • R1 and R2 space division multiplexing
  • R1 corresponds to DMRS port 0, R2 corresponds to DMRS port 2; another example, R1 corresponds to all or part of DMRS ports in DMRS CDM group 0, and R2 corresponds to DMRS CDM groups 10 and 11
  • R3 and R4 are space division multiplexed (for example, R1 corresponds to DMRS port 0, R2 corresponds to DMRS port 2; another example, R1 corresponds to all or part of DMRS ports in CDM group 0, and R2 corresponds to DMRS All or part of the DMRS ports in the CDM groups 10 and 11)
  • the first group of resources and the second group of resources are frequency division multiplexed.
  • TCI1 can be mapped to R1 and R3, and TCI2 can be mapped to R2 and R4.
  • first multiplexing mode adopts space division multiplexing
  • K space related parameters are mapped to the resources of the space division multiplexing first to obtain a better space division multiplexing effect .
  • the first multiplexing mode in FIGS. 17A and 17B is time division multiplexing
  • the second multiplexing mode is frequency division multiplexing.
  • the transmission blocks in each group of transmission blocks are arranged in the order corresponding to the time division multiplexing mode
  • the M groups of transmission blocks are arranged in the order corresponding to the frequency division multiplexing mode.
  • the first multiplexing mode is frequency division multiplexing
  • the second multiplexing mode is time division multiplexing.
  • the transmission blocks in each group of transmission blocks are arranged in the order corresponding to the frequency division multiplexing mode.
  • M groups of transmission blocks They are arranged in the order corresponding to the time division multiplexing mode.
  • TB1 and TB2 are time-division multiplexed
  • TB3 and TB4 are time-division multiplexed
  • the first group of transmission blocks and the second group of transmission blocks are frequency-division multiplexed
  • TB1 and TB2 are frequency-division multiplexed in Figure 18,
  • TCI1 can be mapped to TB1 and TB3
  • TCI2 can be mapped to TB2 and TB4.
  • the transmission modes shown in FIG. 17A, FIG. 17B, and FIG. 18 can effectively reduce the decoding delay compared with the transmission mode that completely adopts time division multiplexing in FIG. 7.
  • the first multiplexing mode in FIGS. 17A and 17B is time division multiplexing
  • the second multiplexing mode is frequency division multiplexing
  • the transmission block TB is replaced It is the resource R
  • the resources in each group of resources are arranged in the order corresponding to the multiplexing mode of time division multiplexing
  • the resources of the M groups are arranged in the order corresponding to the multiplexing mode of frequency division multiplexing.
  • the first multiplexing mode is frequency division multiplexing
  • the second multiplexing mode is time division multiplexing.
  • R1 and R2 are time-division multiplexed
  • R3 and R4 are time-division multiplexed
  • the first group of resources and the second group of resources are frequency-division multiplexed
  • R1 and R2 are frequency-division multiplexed
  • R3 and R4 Frequency division multiplexing, time division multiplexing between the first group of resources and the second group of resources.
  • Spatial related parameters can be mapped to resources in a fixed order, as shown in Figure 17A and Figure 18, TCI1 can be mapped to R1 and R3, and TCI2 can be mapped to R2 and R4. Alternatively, the space-related parameters can also be mapped to resources in reverse order, as shown in FIG.
  • TCI1 can be mapped to R1 and R4, and TCI2 can be mapped to R2 and R3.
  • the transmission modes shown in FIG. 17A, FIG. 17B, and FIG. 18 can effectively reduce the decoding delay compared with the transmission mode that completely adopts the time division multiplexing in FIG. 7.
  • the transmission method shown in FIG. 17B can obtain better robustness.
  • a TB is respectively transmitted by two transmission points (transmission points, TRP), TRP1 transmits information on resources R1 and R4, and TRP 2 transmits information on R2 and R4, and the frequency hopping gain can be obtained.
  • the transmission blocks of each group are first arranged in the order corresponding to the second multiplexing mode and then arranged in the order corresponding to the third multiplexing mode.
  • the first multiplexing mode is space division multiplexing
  • the second multiplexing mode is time division multiplexing
  • the third multiplexing mode is frequency division multiplexing
  • the first multiplexing mode is space division multiplexing
  • the second multiplexing mode is space division multiplexing.
  • the method used is frequency division multiplexing
  • the third multiplexing method is time division multiplexing.
  • the second multiplexing mode when the terminal device has a single activated antenna panel, the second multiplexing mode is time division multiplexing, and the third multiplexing mode is frequency division multiplexing; when the terminal device has When there are multiple active antenna panels, the second multiplexing mode is frequency division multiplexing, and the third multiplexing mode is time division multiplexing.
  • the number of antenna panels activated by the terminal device can be directly or indirectly indicated by the network device, displayed, implicitly, directly or indirectly reported by the terminal device, or reported by the terminal device according to the capabilities of the terminal device.
  • the second multiplexing mode is time division multiplexing
  • the third multiplexing mode is frequency division multiplexing, which is applicable when the terminal device has a single activated antenna panel.
  • the second multiplexing mode is frequency division multiplexing
  • the third multiplexing mode is time division multiplexing, which is applicable when the terminal device has multiple active antenna panels.
  • the second multiplexing mode is time division multiplexing
  • the third multiplexing mode is frequency division multiplexing. It is applicable when the terminal device has a single antenna panel (panel).
  • the single antenna panel is Active.
  • the second multiplexing mode is frequency division multiplexing
  • the third multiplexing mode is time division multiplexing, which is applicable when the terminal device has multiple antenna panels.
  • the multiple antenna panels are activated.
  • the first multiplexing mode in Fig. 19 is space division multiplexing
  • the second multiplexing mode is time division multiplexing
  • the third multiplexing mode is frequency division multiplexing.
  • the transmission blocks in each group of transmission blocks are arranged in the order corresponding to the multiplexing mode of space division multiplexing
  • the transmission blocks of the M groups are first arranged in the order corresponding to the multiplexing mode of time division multiplexing and then according to the multiplexing of frequency division multiplexing.
  • the order corresponds to the way.
  • the first multiplexing mode is space division multiplexing
  • the second multiplexing mode is frequency division multiplexing
  • the third multiplexing mode is time division multiplexing.
  • the transmission blocks in each group of transmission blocks are based on space division multiplexing. Arrange in the order corresponding to the mode, the M groups of transmission blocks are first arranged in the order corresponding to the multiplexing mode of frequency division multiplexing and then arranged in the order corresponding to the multiplexing mode of time division multiplexing.
  • the first group of transmission blocks includes TB1 and TB2, and the second group of transmission blocks includes TB3 and TB4, the third group of transmission blocks includes TB5 and TB6, the second group of transmission blocks includes TB7 and TB8; and TB1 and TB2 are space division multiplexed, TB3 and TB4 are space division multiplexed, TB4 and TB5 are space division multiplexed, TB6 Space division multiplexing with TB7.
  • the first group of transmission blocks and the second group of transmission blocks are time-division multiplexed
  • the third group of transmission blocks and the fourth group of transmission blocks are time-division multiplexed
  • the first and second groups of transmission blocks are compared with the third and fourth groups Frequency division multiplexing between transmission blocks; in Figure 20, the frequency division multiplexing between the first group of transmission blocks and the second group of transmission blocks, the frequency division multiplexing between the third group of transmission blocks and the fourth group of transmission blocks, the first , Time division multiplexing between the second group of transmission blocks and the third and fourth groups of transmission blocks.
  • TCI1 can be mapped to TB1, TB3, TB5, TB7
  • TCI2 can be mapped to TB2, TB4, TB6, TB8.
  • the first multiplexing mode in Fig. 19 is space division multiplexing
  • the second multiplexing mode is time division multiplexing
  • the third multiplexing mode is frequency division multiplexing.
  • the resources in each group of resources are arranged in the order corresponding to the multiplexing mode of space division multiplexing
  • the resources of the M groups are arranged in the order corresponding to the multiplexing mode of time division multiplexing and then corresponding to the multiplexing mode of frequency division multiplexing.
  • the first multiplexing mode is space division multiplexing
  • the second multiplexing mode is frequency division multiplexing
  • the third multiplexing mode is time division multiplexing.
  • the resources in each group of resources are in accordance with the multiplexing mode of space division multiplexing.
  • the corresponding order is arranged, the resources of the M groups are first arranged in the order corresponding to the frequency division multiplexing mode and then arranged in the order corresponding to the time division multiplexing mode.
  • the first group of resources includes R1 and R2, the second Group resources include R3 and R4, the third group of resources include R5 and R6, and the second group of resources include R7 and TB8; and R1 and R2 are space-division multiplexed, R3 and R4 are space-division multiplexed, R4 and R5 are space-division multiplexed, R6 and R7 are space division multiplexed.
  • the first group of resources and the second group of resources are time-division multiplexed
  • the third group of resources and the fourth group of resources are time-division multiplexed
  • the first and second groups of resources are divided by frequency from the third and fourth groups of resources.
  • Multiplexing in Figure 20, the frequency division multiplexing between the first group of resources and the second group of resources, the frequency division multiplexing between the third group of resources and the fourth group of resources, the first and second groups of resources and the third and fourth groups Time division multiplexing between resources.
  • TCI1 can be mapped to R1, R3, R5, R7
  • TCI2 can be mapped to R2, R4, R6, R8.
  • the terminal device can uniquely determine the order of the N transmission blocks according to the first multiplexing mode and the second multiplexing mode.
  • Three multiplexing modes are used for N transmission blocks, and the terminal device can uniquely determine the order of the N transmission blocks according to the first multiplexing mode, the second multiplexing mode, and the third multiplexing mode. That is, through the above method, the terminal device can determine the sequence of the N transmission blocks.
  • the mapping relationship between the K spatial related parameters and the N transmission blocks may be configured by the network device, or predefined by the protocol, or determined by the terminal device according to the frequency domain or time domain spacing of the at least two transmission blocks. For example, when the frequency domain or time domain spacing between adjacent transmission blocks in N transmission blocks is greater than the first threshold, the K spatial correlation parameters arranged in the first order may be sequentially mapped to the N transmission blocks, or A method in which the i-th spatial correlation parameter of the K spatial correlation parameters arranged in the first order is mapped to the K*j+i-th transmission block in the N transmission blocks.
  • This method can make the frequency domain or between the transmission blocks When the time domain spacing is larger, better diversity gain is obtained; when the frequency domain or time domain spacing between adjacent transmission blocks in N transmission blocks is less than the first threshold, K spatial correlations arranged in the first order can be used The parameters are sequentially mapped to the K groups of transmission blocks arranged in the order corresponding to a multiplexing method. This method can avoid frequent beam switching and excessive channel estimation when the frequency or time domain spacing between the transmission blocks is small. Thereby reducing the implementation complexity of terminal equipment.
  • the number of repetitions N of the transmission block may be indicated by one or more parameters.
  • one parameter indication may be used for each multiplexing mode.
  • define the number of repetitions of the transmission block of each multiplexing mode for example, the repetition number of the transmission block of the multiplexing mode is N1 times, and the repetition number of the transmission block of the frequency division multiplexing mode is N2 times.
  • the number of repetitions of the transmission block whose multiplexing mode is space division multiplexing is N3 times.
  • the total number of repetitions of the transmission block N can be directly indicated, that is, no matter how many multiplexing methods are available, only the total number of repetitions of the transmission block is indicated as N.
  • the redundancy version (RV) of the transmission block and/or the mapping sequence of the modulation and coding scheme (MCS) may also be combined to determine K spatial related parameters and N transmission blocks
  • the mapping sequence of the RV and/or MCS of the transmission block is determined according to the mapping relationship between the K spatial related parameters and the N transmission blocks.
  • transmission blocks of the same RV use the same spatial related parameters (such as TCI ID).
  • transmission blocks of the same MCS use the same spatial related parameters (for example, TCI ID).
  • the same spatial related parameters (such as TCI ID) use the same MCS or RV.
  • the multiplexing method may not be emphasized, that is, the mapping relationship between K spatial related parameters and N transmission blocks can be directly determined. In fact, it implicitly includes determining the mapping relationship between K spatial related parameters and N transmission blocks according to the multiplexing mode of N transmission blocks.
  • step S501 and step S502 is not limited.
  • S501 can be executed first and then S502
  • S502 can be executed first and then S501, or S501 and S502 can be executed simultaneously.
  • S503 The terminal device determines the mapping relationship between K spatial related parameters and N transmission blocks.
  • step S502 For details, refer to the description in step S502, which is not repeated here.
  • step S501 and step S503 are not limited.
  • S501 can be executed first and then S503, or S501 and S503 can be executed simultaneously.
  • S504 The network device sends N transmission blocks according to the mapping relationship.
  • the network device may send the transmission block according to the space-related parameters that have a mapping relationship with the transmission block.
  • S505 The terminal device receives N transmission blocks according to the mapping relationship.
  • the terminal device may receive the transmission block according to the space-related parameters that have a mapping relationship with the transmission block.
  • S506 The terminal device sends N transmission blocks according to the mapping relationship.
  • S507 The network device receives N transmission blocks according to the mapping relationship.
  • steps S504-S505 and S506-S507 are executed.
  • steps S504-S505 are for PDSCH
  • the spatial correlation parameter may be TCI or QCL
  • steps S506-S507 are for PUSCH
  • the spatial correlation parameter is spatial relation information (spatial relation info).
  • step S502 and step S504 are not limited.
  • S502 may be executed first and then S504, or S502 and S504 may be executed simultaneously.
  • steps S502 and S504 may also be the same step.
  • the network device sends the N transmission blocks according to the mapping relationship between the K spatial related parameters and the N transmission blocks.
  • step S503 and step S505 are not limited.
  • S503 can be executed first and then S505, or S503 and S505 can be executed simultaneously.
  • steps S503 and S505 may also be the same step.
  • the terminal device receives the N transmission blocks according to the mapping relationship between the K spatial related parameters and the N transmission blocks.
  • step S502 and step S507 are not limited.
  • S502 can be executed first and then S507, or S502 and S507 can be executed simultaneously.
  • steps S502 and S507 can also be the same step.
  • the network device receives the N transmission blocks according to the mapping relationship between the K spatial related parameters and the N transmission blocks.
  • step S503 and step S506 are not limited.
  • S503 can be executed first and then S506, or S503 and S506 can be executed simultaneously.
  • steps S503 and S506 can also be the same step, and the terminal device transmits the N transmission blocks according to the mapping relationship between the K spatial related parameters and the N transmission blocks.
  • the network device sends the first indication information to the terminal device. Accordingly, the terminal device receives the first indication information from the network device, and the first indication information is used to indicate to receive K spaces of N transmission blocks Related parameters.
  • the network device and the terminal device determine the mapping relationship between K spatial related parameters and N transmission blocks.
  • the network device sends N transmission blocks according to the mapping relationship, and correspondingly, the terminal device receives N transmission blocks according to the mapping relationship.
  • the terminal device sends N transmission blocks according to the mapping relationship, and accordingly, the network device receives N transmission blocks according to the mapping relationship.
  • the network device and the terminal device determine the mapping relationship between the space-related parameters and the transmission block, thereby knowing which transmission block is sent or received according to which space-related parameter according to the mapping relationship.
  • the methods and/or steps implemented by terminal devices can also be implemented by components (such as chips or circuits) that can be used in terminal devices, and the methods and/or steps implemented by network devices can also It can also be implemented by components that can be used in network devices.
  • an embodiment of the present application also provides a communication device, which is used to implement the foregoing various methods.
  • the communication device may be the terminal device in the foregoing method embodiment, or a device including the foregoing terminal device, or a component that can be used in the terminal device; or, the communication device may be the network device in the foregoing method embodiment, or include the foregoing A device of a network device, or a component that can be used in a network device.
  • the communication device includes hardware structures and/or software modules corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiments of the present application may divide the communication device into functional modules according to the foregoing method embodiments.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • FIG. 21 shows a schematic structural diagram of a terminal device 210.
  • the terminal device 210 includes a processing module 2101 and a transceiver module 2102.
  • the transceiver module 2102 may also be referred to as a transceiver unit to implement sending and/or receiving functions.
  • it may be a transceiver circuit, a transceiver, a transceiver, or a communication interface.
  • the transceiver module 2102 is configured to receive first indication information, where the first indication information is used to indicate the reception of K spatial related parameters of N transmission blocks, where N transmission blocks are the same transmission block, and K and N are greater than An integer of 1, and K ⁇ N; the processing module 2101 is used to determine the mapping relationship between K spatial related parameters and the N transmission blocks; the transceiver module 2102 is also used to receive N transmission blocks according to the mapping relationship.
  • the processing module 2101 is specifically configured to: determine the mapping relationship between K spatial related parameters and N transmission blocks according to the multiplexing mode of the N transmission blocks, where the multiplexing mode includes space division multiplexing, time division multiplexing, At least one of frequency division multiplexing.
  • N transmission blocks include K groups of transmission blocks;
  • the mapping relationship between K space-related parameters and N transmission blocks includes: K spaces arranged in a first order Related parameters are sequentially mapped to K groups of transmission blocks arranged in the order corresponding to a multiplexing mode.
  • the mapping relationship between the K space related parameters and the N transmission blocks includes: sequentially mapping the K space related parameters arranged in a first order to the N transmission blocks.
  • the mapping relationship between the K space-related parameters and the N transmission blocks includes: mapping the i-th space-related parameter of the K space-related parameters arranged in a first order to the K*th of the N transmission blocks j+i transmission blocks, where i and j are integers, and 1 ⁇ i ⁇ K, 1 ⁇ K*j+i ⁇ N, Indicates rounding up.
  • the N transmission blocks adopt a multiplexing mode, and the N transmission blocks are arranged in an order corresponding to a multiplexing mode.
  • At least two multiplexing modes are used for N transmission blocks, the at least two multiplexing modes include the first multiplexing mode, the N transmission blocks include M groups of transmission blocks, and M is a positive integer.
  • the transmission blocks are arranged in the order corresponding to the first multiplexing mode.
  • N transmission blocks adopt two multiplexing modes, and the M groups of transmission blocks are arranged in an order corresponding to the second multiplexing mode.
  • the first multiplexing mode is space division multiplexing
  • the second multiplexing mode is time division multiplexing or frequency division multiplexing; or, the first multiplexing mode is time division multiplexing, and the second multiplexing mode is frequency division multiplexing. Multiplexing; or, the first multiplexing mode is frequency division multiplexing, and the second multiplexing mode is time division multiplexing.
  • the N transmission blocks adopt three multiplexing modes, and each group of transmission blocks are first arranged in an order corresponding to the second multiplexing mode and then arranged in an order corresponding to the third multiplexing mode.
  • the first multiplexing mode is space division multiplexing
  • the second multiplexing mode is time division multiplexing
  • the third multiplexing mode is frequency division multiplexing, or the first multiplexing mode is space division multiplexing.
  • the second multiplexing mode is frequency division multiplexing
  • the third multiplexing mode is time division multiplexing.
  • the first order is: the order of the identifiers of the space-related parameters from small to large, or the order of the identifiers of the space-related parameters from large to small, or the sequence of the K space-related parameters indicated by the first indication information.
  • the sequence corresponding to the multiplexing mode of space division multiplexing is: the index of the demodulation reference signal port from small to large, or the index of the demodulation reference signal port from large to small, or the demodulation reference
  • the index of the signal port group is in ascending order, or the index of the demodulation reference signal port group is in descending order, or the index of the demodulation reference signal port group indicated by the antenna port field is in descending order, or ,
  • the index of the demodulation reference signal port group indicated by the antenna port field in descending order, or the index of the demodulation reference signal port indicated by the antenna port field in descending order, or the antenna port field indication The order of the demodulation reference signal port index in descending order, or the order of the demodulation reference signal port group index indicated by the antenna port field, or the demodulation reference signal port index indicated by the antenna port field Sequence; each or every few demodulation reference signal ports or demodulation reference signal port groups are used to demodulate one of the N transmission blocks.
  • the corresponding sequence of the multiplexing mode of space division multiplexing is: the index of the demodulation reference signal port from small to large, or the index of the demodulation reference signal port from large to small, or the order of the demodulation reference signal port group Index from small to large, or demodulation reference signal port group index from large to small, or the antenna port field indicates the demodulation reference signal port group index from small to large, or antenna port word
  • the index of the demodulation reference signal port group indicated by the field is in descending order, or the index of the demodulation reference signal port indicated by the antenna port field is in descending order, or the demodulation reference indicated by the antenna port field
  • the index of the signal port is in descending order, or the order of the demodulation reference signal port group index indicated by the antenna port field, or the order of the demodulation reference signal port index indicated by the antenna port field; each; Or every few demodulation reference signal ports and demodulation reference signal port groups correspond to one resource among the N resources.
  • the corresponding order of the time-division multiplexing mode is: the index of the time domain resource is in ascending order, or the index of the time domain resource is in the descending order, and each time domain resource is used to carry N One of the two transmission blocks.
  • the corresponding sequence of the frequency division multiplexing mode is: the index of the frequency domain resource from small to large, or the index of the frequency domain resource from large to small, where each frequency domain resource uses It carries one of the N transport blocks.
  • the space-related parameters are space-related information or transmission configuration indication TCI information.
  • the N transmission blocks adopt the multiplexing mode of time division multiplexing and frequency division multiplexing, and the N transmission blocks include M groups of transmission blocks;
  • the mapping relationship between the K space-related parameters and the N transmission blocks includes: The i-th spatial-related parameter in a sequence of K spatial-related parameters is mapped to the K*j+i-th group of transmission blocks in the M group of transmission blocks, where i and j are integers, and 1 ⁇ i ⁇ K, 1 ⁇ K*j+i ⁇ M, Indicates rounding up.
  • the terminal device 210 is presented in the form of dividing various functional modules in an integrated manner.
  • the "module” here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • the terminal device 210 may take the form of the terminal device 105 shown in FIG. 2.
  • the processor 180 in the terminal device 105 shown in FIG. 2 may invoke the computer execution instruction stored in the memory 120 to make the terminal device 105 execute the communication method in the foregoing method embodiment.
  • the function/implementation process of the processing module 2101 and the transceiver module 2102 in FIG. 21 may be implemented by the processor 180 in the terminal device 105 shown in FIG. 2 calling a computer execution instruction stored in the memory 120.
  • the function/implementation process of the processing module 2101 in FIG. 21 may be implemented by the processor 180 in the terminal device 105 shown in FIG. 2 calling a computer execution instruction stored in the memory 120, and the function of the transceiver module 2102 in FIG. 21 /The realization process can be realized by the RF circuit 110 in the terminal device 105 shown in FIG. 2.
  • the terminal device 105 provided in this embodiment can execute the above-mentioned communication method, the technical effects that can be obtained can refer to the above-mentioned method embodiment, which will not be repeated here.
  • FIG. 22 shows a schematic structural diagram of a network device 220.
  • the network device 220 includes a processing module 2201 and a transceiver module 2202.
  • the transceiver module 2202 may also be referred to as a transceiver unit to implement sending and/or receiving functions, and may be, for example, a transceiver circuit, transceiver, transceiver, or communication interface.
  • the transceiver module 2202 is configured to send first indication information, where the first indication information is used to indicate to receive K spatial related parameters of N transmission blocks, where N transmission blocks are the same transmission block, and K and N are greater than An integer of 1, and K ⁇ N; the processing module 2201 is used to determine the mapping relationship between K spatial related parameters and the N transmission blocks; the transceiver module 2202 is also used to send N transmission blocks according to the mapping relationship.
  • the processing module 2201 is specifically configured to: determine the mapping relationship between the K spatial related parameters and the N transmission blocks according to the multiplexing mode of the N transmission blocks, where the multiplexing mode includes space division multiplexing, time division multiplexing, At least one of frequency division multiplexing.
  • N transmission blocks include K groups of transmission blocks;
  • the mapping relationship between K space-related parameters and N transmission blocks includes: K spaces arranged in a first order Related parameters are sequentially mapped to K groups of transmission blocks arranged in the order corresponding to a multiplexing mode.
  • the mapping relationship between the K space related parameters and the N transmission blocks includes: sequentially mapping the K space related parameters arranged in a first order to the N transmission blocks.
  • the mapping relationship between the K space-related parameters and the N transmission blocks includes: mapping the i-th space-related parameter of the K space-related parameters arranged in a first order to the K*th of the N transmission blocks j+i transmission blocks, where i and j are integers, and 1 ⁇ i ⁇ K, 1 ⁇ K*j+i ⁇ N, Indicates rounding up.
  • the N transmission blocks adopt a multiplexing mode, and the N transmission blocks are arranged in an order corresponding to a multiplexing mode.
  • At least two multiplexing modes are used for N transmission blocks, the at least two multiplexing modes include the first multiplexing mode, the N transmission blocks include M groups of transmission blocks, and M is a positive integer.
  • the transmission blocks are arranged in the order corresponding to the first multiplexing mode.
  • N transmission blocks adopt two multiplexing modes, and the M groups of transmission blocks are arranged in an order corresponding to the second multiplexing mode.
  • the first multiplexing mode is space division multiplexing
  • the second multiplexing mode is time division multiplexing or frequency division multiplexing; or, the first multiplexing mode is time division multiplexing, and the second multiplexing mode is frequency division multiplexing. Multiplexing; or, the first multiplexing mode is frequency division multiplexing, and the second multiplexing mode is time division multiplexing.
  • the N transmission blocks adopt three multiplexing modes, and each group of transmission blocks are first arranged in an order corresponding to the second multiplexing mode and then arranged in an order corresponding to the third multiplexing mode.
  • the first multiplexing mode is space division multiplexing
  • the second multiplexing mode is time division multiplexing
  • the third multiplexing mode is frequency division multiplexing, or the first multiplexing mode is space division multiplexing.
  • the second multiplexing mode is frequency division multiplexing
  • the third multiplexing mode is time division multiplexing.
  • the first order is: the order of the identifiers of the space-related parameters from small to large, or the order of the identifiers of the space-related parameters from large to small, or the sequence of the K space-related parameters indicated by the first indication information.
  • the sequence corresponding to the multiplexing mode of space division multiplexing is: the index of the demodulation reference signal port from small to large, or the index of the demodulation reference signal port from large to small, or the demodulation reference The index of the signal port group in ascending order, or the index of the demodulation reference signal port group in descending order; each or every few demodulation reference signal ports or demodulation reference signal port groups are used for demodulation N
  • the corresponding order of the time-division multiplexing mode is: the index of the time domain resource is in ascending order, or the index of the time domain resource is in the descending order, and each time domain resource is used to carry N One of the two transmission blocks.
  • the corresponding sequence of the frequency division multiplexing mode is: the index of the frequency domain resource from small to large, or the index of the frequency domain resource from large to small, where each frequency domain resource uses It carries one of the N transport blocks.
  • the space-related parameters are space-related information or transmission configuration indication TCI information.
  • the N transmission blocks adopt the multiplexing mode of time division multiplexing and frequency division multiplexing, and the N transmission blocks include M groups of transmission blocks;
  • the mapping relationship between the K space-related parameters and the N transmission blocks includes: The i-th spatial-related parameter in a sequence of K spatial-related parameters is mapped to the K*j+i-th group of transmission blocks in the M group of transmission blocks, where i and j are integers, and 1 ⁇ i ⁇ K, 1 ⁇ K*j+i ⁇ M, Indicates rounding up.
  • the network device 220 is presented in the form of dividing various functional modules in an integrated manner.
  • the "module” here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • the network device 220 may take the form of the network device 300 shown in FIG. 3.
  • the processor 301 in the network device 300 shown in FIG. 3 may invoke the computer execution instructions stored in the memory 302 to make the network device 300 execute the communication method in the foregoing method embodiment.
  • the function/implementation process of the processing module 2201 and the transceiver module 2202 in FIG. 22 may be implemented by the processor 301 in the network device 300 shown in FIG. 3 calling the computer execution instructions stored in the memory 302.
  • the function/implementation process of the processing module 2201 in FIG. 22 may be implemented by the processor 301 in the network device 300 shown in FIG. 3 calling a computer execution instruction stored in the memory 302, and the function of the transceiver module 2202 in FIG. 22 /The realization process can be realized through the communication interface 303 in the network device 300 shown in FIG. 3.
  • the network device 220 provided in this embodiment can execute the above-mentioned communication method, the technical effects that can be obtained can refer to the above-mentioned method embodiment, and will not be repeated here.
  • An embodiment of the present application also provides a communication device, including: a processor and a memory, the memory is used to store a program, and the processor calls the program stored in the memory to make the communication device execute the communication method of the terminal device in FIG. 5 .
  • An embodiment of the present application also provides a communication device, including: a processor and a memory, the memory is used to store a program, and the processor calls the program stored in the memory to make the communication device execute the communication method of the network device in FIG. 5 .
  • the embodiment of the present application also provides a computer-readable storage medium that stores instructions in the computer-readable storage medium.
  • the instructions run on a computer or a processor, the computer or the processor executes the terminal device or The communication method of the network device.
  • the embodiment of the present application also provides a computer program product containing instructions.
  • the instructions When the instructions are executed on a computer or a processor, the computer or the processor executes the communication method of the terminal device or the network device in FIG. 5.
  • the embodiment of the present application provides a chip system including a processor, which is used for a communication device to execute the communication method of the terminal device in FIG. 5. For example, receiving first indication information, where the first indication information is used to indicate the reception of K spatial related parameters of N transport blocks, where N transport blocks are the same transport block, and K and N are integers greater than 1, And K ⁇ N; determine the mapping relationship between K spatial related parameters and N transmission blocks; receive N transmission blocks according to the mapping relationship.
  • the chip system also includes a memory, which is used to store necessary program instructions and data for the terminal device.
  • the chip system may include a chip, an integrated circuit, or a chip and other discrete devices, which is not specifically limited in the embodiment of the present application.
  • the embodiment of the present application provides a chip system including a processor, which is used for a communication device to execute the communication method of the network device in FIG. 5. For example, sending first indication information, where the first indication information is used to indicate the reception of K spatial related parameters of N transport blocks, where N transport blocks are the same transport block, and K and N are integers greater than 1, And K ⁇ N; determine the mapping relationship between K spatial related parameters and N transmission blocks; send N transmission blocks according to the mapping relationship.
  • the chip system further includes a memory for storing necessary program instructions and data for the network device.
  • the chip system may include a chip, an integrated circuit, or a chip and other discrete devices, which is not specifically limited in the embodiment of the present application.
  • the communication device, computer storage medium, computer program product, or chip system provided in the present application are all used to execute the above communication method. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the embodiments provided above. The effect will not be repeated here.
  • the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, rather than corresponding to the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the computer may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • a software program it may be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or may include one or more data storage devices such as servers and data centers that can be integrated with the medium.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

Abstract

本申请公开了一种通信方法和装置，涉及通信领域，用于重复发送传输块时，网络设备和终端设备确定空间相关参数与传输块的映射关系。通信方法，包括：接收第一指示信息，其中，第一指示信息用于指示接收承载在N个资源上的传输块的K个空间相关参数，其中，K和N为大于1的整数，并且K≤N；确定K个空间相关参数与N个资源的映射关系；根据映射关系接收N个资源上的传输块。

Description

通信方法和装置
本申请要求于2019年3月28日提交国家知识产权局、申请号为201910245843.0、申请名称为“通信方法和装置”的中国专利申请的优先权，以及，要求于2019年8月16日提交国家知识产权局、申请号为201910760399.6、申请名称为“通信方法和装置”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
本申请涉及通信领域，尤其涉及一种通信方法和装置。
背景技术
通信系统通常使用不同种类的参考信号：第一类参考信号用于信道估计，从而可以对含有控制信息或者数据信息的接收信号进行相干解调；第二类参考信号用于信道状态或信道质量的测量，从而实现对终端设备的调度，例如，信道状态信息参考信号(channel state information reference signal，CSI-RS)。终端设备可以根据CSI-RS获得空间特性参数。
在长期演进(long term evolution，LTE)中，引入了空间相关参数的概念。假设第一参考信号与第二参考信号具有相同空间相关参数，则第一参考信号对应的天线端口发送的信号与第二参考信号对应的天线端口发送的信号会经过相同的大尺度衰落。网络设备可以向终端设备指示空间相关参数信息(如传输配置指示(transmission configuration indicator，TCI)信息或准共址(quasi-collocation，QCL)信息)，用于辅助描述终端设备的收发处理流程。
另外，对于新窗口(new radio，NR)的超可靠低时延通信(ultra reliable low latency communication，URLLC)场景，为了提高传输可靠性，需要重复发送多个传输块(transmission block，TB)，并且可以根据多个空间相关参数信息发送重复的TB。在现有技术中，上述空间相关参数信息仅能与一个TB进行映射，当网络设备指示多个空间相关参数信息用于传输多个重复的TB时，网络设备和终端设备无法确定多个空间相关参数信息与多个TB的映射关系，也就不知道根据哪个空间相关参数信息接收或发送哪个TB块。
发明内容
本申请实施例提供一种通信方法和装置，用于重复发送传输块时，网络设备和终端设备确定空间相关参数与传输块的映射关系。
为达到上述目的，本申请的实施例采用如下技术方案：
第一方面，提供了一种通信方法，包括：接收第一指示信息，其中，第一指示信息用于指示接收N个传输块的K个空间相关参数，其中，N个传输块是相同的传输块，K和N为大于1的整数，并且K≤N；确定K个空间相关参数与N个传输块的映射关系；根据映射关系接收N个传输块。本申请实施例提供的通信方法，网络设备向终端设备发送第一指示信息，相应地，终端设备从网络设备接收第一指示信息，第一指示信息用于指示接收N个传输块的K个空间相关参数。网络设备和终端设备确定K个 空间相关参数与N个传输块的映射关系。网络设备根据映射关系发送N个传输块，相应地，终端设备根据映射关系接收N个传输块。或者，终端设备根据映射关系发送N个传输块，相应地，网络设备根据映射关系接收N个传输块。实现了重复发送传输块时，网络设备和终端设备根据该映射关系获知根据哪个空间相关参数发送或接收哪个传输块，保证数据的可靠传输。
在一种可能的实施方式中，确定K个空间相关参数与N个传输块的映射关系包括：根据N个传输块的复用方式确定K个空间相关参数与N个传输块的映射关系，其中，复用方式包括空分复用、时分复用、频分复用中的至少一种。时分复用的复用方式，可以有效减少波束的频繁切换。频分复用的复用方式，由于频域靠近的传输块信道特性更像，可以获得更好的传输块合并效果，此外采用频分复用方式可以更快的完成传输块的传输，减小传输时延。空分复用的复用方式，可以更快的完成传输块的传输时延，还可以提高系统性能。
在一种可能的实施方式中，N个传输块采用一种复用方式，N个传输块包括K组传输块；K个空间相关参数与N个传输块的映射关系，包括：按照第一顺序排列的K个空间相关参数依次映射至按照一种复用方式对应的顺序排列的K组传输块。
在一种可能的实施方式中，K个空间相关参数与N个传输块的映射关系，包括：按照第一顺序排列的K个空间相关参数依次映射至N个传输块。也就是说，空间相关参数是按第一顺序排列的。
在一种可能的实施方式中，K个空间相关参数与N个传输块的映射关系，包括：按照第一顺序排列的K个空间相关参数中的第i个空间相关参数映射至N个传输块中的第K*j+i个传输块，其中，i和j为整数，且1≤i≤K，1≤K*j+i≤N，
Figure PCTCN2020079607-appb-000001
Figure PCTCN2020079607-appb-000002
Figure PCTCN2020079607-appb-000003
表示向上取整。该实施方式针对每个空间相关参数与单个传输块之间的映射关系进行了说明。需要说明的是，当K<N时，一个空间相关参数可以映射至多个传输块，这样可以保证每个传输块均有对应的空间相关参数。
在一种可能的实施方式中，N个传输块采用一种复用方式，N个传输块按照一种复用方式对应的顺序排列。
在一种可能的实施方式中，N个传输块采用至少两种复用方式，至少两种复用方式包括第一复用方式，N个传输块包括M组传输块，M为正整数，每组传输块中的传输块按照第一复用方式对应的顺序排列。
在一种可能的实施方式中，N个传输块采用两种复用方式，M组传输块之间按照第二复用方式对应的顺序排列。
在一种可能的实施方式中，第一复用方式为空分复用，第二复用方式为时分复用或频分复用；或者，第一复用方式为时分复用，第二复用方式为频分复用；或者，第一复用方式为频分复用，第二复用方式为时分复用。当第一复用方式采用空分复用时，可以获得更好的空分复用效果，也即将K个空间相关参数优先映射至空分复用的传输块可以获得更好的空分复用效果。第一复用方式为频分复用，第二复用方式为时分复用适用于当终端设备具有多个天线面板时的情况，可选地，该多个天线面板是激活的。第一复用方式为时分复用，第二复用方式为频分复用适用于当终端设备具有单个天线面板时的情况，可选地，该单个天线面板是激活的。
在一种可能的实施方式中，N个传输块采用三种复用方式，各组传输块之间先按照第二复用方式对应的顺序排列后按照第三复用方式对应的顺序排列。
在一种可能的实施方式中，第一复用方式为空分复用，第二复用方式为时分复用，第三复用方式为频分复用，或者，第一复用方式为空分复用，第二复用方式为频分复用，第三复用方式为时分复用。
在一种可能的实施方式中，按照第一顺序排列的K个空间相关参数依次映射至每组资源中按照第一复用方式对应的顺序排列的资源，再在各组资源之间重复映射。或者说，N个资源可以按照先组内再组间的顺序排列。按照第一顺序排列的K个空间相关参数可以依次循环映射至按该顺序排列的N个资源。
在一种可能的实施方式中，第一顺序为：空间相关参数的标识从小到大的顺序，或者空间相关参数的标识从大到小的顺序，或者第一指示信息指示的K个空间相关参数的先后顺序。
在一种可能的实施方式中，空分复用的复用方式对应的顺序为：解调参考信号端口的索引从小到大的顺序，或者，解调参考信号端口的索引从大到小的顺序，或者解调参考信号端口组的索引从小到大的顺序，或者解调参考信号端口组的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口组的索引从小到大的顺序，或者，天线端口字域指示的解调参考信号端口组的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口的索引从小到大的顺序，或者，天线端口字域指示的解调参考信号端口的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口组的索引的顺序，或者，天线端口字域指示的解调参考信号端口的索引的顺序；每个或每几个解调参考信号端口、解调参考信号端口组用于解调N个传输中的一个传输块。
在一种可能的实施方式中，空分复用的复用方式对应的顺序为：解调参考信号端口的索引从小到大的顺序，或者，解调参考信号端口的索引从大到小的顺序，或者解调参考信号端口组的索引从小到大的顺序，或者解调参考信号端口组的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口组的索引从小到大的顺序，或者，天线端口字域指示的解调参考信号端口组的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口的索引从小到大的顺序，或者，天线端口字域指示的解调参考信号端口的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口组的索引的顺序，或者，天线端口字域指示的解调参考信号端口的索引的顺序；每个或每几个解调参考信号端口、解调参考信号端口组对应N个资源中的一个资源。
在一种可能的实施方式中，时分复用的复用方式对应的顺序为：时域资源的索引从小到大的顺序，或者，时域资源的索引从大到小的顺序，每个时域资源用于承载N个传输块中的一个传输块。
在一种可能的实施方式中，频分复用的复用方式对应的顺序为：频域资源的索引从小到大的顺序，或者，频域资源的索引从大到小的顺序，其中，每个频域资源用于承载N个传输块中的一个传输块。
在一种可能的实施方式中，空间相关参数为空间相关信息或传输配置指示TCI信息。即本申请实施例提供的实施方式既可以用于PDSCH传输，也可以用于PUSCH传 输。
在一种可能的实施方式中，N个传输块采用时分复用和频分复用的复用方式，N个传输块包括M组传输块；K个空间相关参数与N个传输块的映射关系，包括：按照第一顺序排列的K个空间相关参数中的第i个空间相关参数映射至M组传输块中的第K*j+i组传输块，其中，i和j为整数，且1≤i≤K，1≤K*j+i≤M，
Figure PCTCN2020079607-appb-000004
Figure PCTCN2020079607-appb-000005
表示向上取整。
K个空间相关参数与N个传输块的映射关系可以是网络设备配置的，或者是协议预定义的，或者是终端设备根据至少两个传输块的频域或时域间距确定的。例如，当N个传输块中相邻传输块之间的频域或时域间距大于第一门限时，可以采用按照第一顺序排列的K个空间相关参数依次映射至N个传输块的方式或按照第一顺序排列的K个空间相关参数中的第i个空间相关参数映射至N个传输块中的第K*j+i个传输块的方式，该方式可以使得传输块之间频域或时域间距较大时获得更好的分集增益；当N个传输块中相邻传输块之间的频域或时域间距小于第一门限时，可以采用按照第一顺序排列的K个空间相关参数依次映射至按照一种复用方式对应的顺序排列的K组传输块的方式，该方式可以使得输块之间频域或时域间距较小时，避免频繁波束切换及过多的信道估计，从而降低终端设备的实现复杂度。
第二方面，提供了一种通信方法，包括：发送第一指示信息，其中，第一指示信息用于指示接收N个传输块的K个空间相关参数，其中，N个传输块是相同的传输块，K和N为大于1的整数，并且K≤N；确定K个空间相关参数与N个传输块的映射关系；根据映射关系发送N个传输块。本申请实施例提供的通信方法，网络设备向终端设备发送第一指示信息，相应地，终端设备从网络设备接收第一指示信息，第一指示信息用于指示接收N个传输块的K个空间相关参数。网络设备和终端设备确定K个空间相关参数与N个传输块的映射关系。网络设备根据映射关系发送N个传输块，相应地，终端设备根据映射关系接收N个传输块。或者，终端设备根据映射关系发送N个传输块，相应地，网络设备根据映射关系接收N个传输块。实现了重复发送传输块时，网络设备和终端设备根据该映射关系获知根据哪个空间相关参数发送或接收哪个传输块，保证数据的可靠传输。
在一种可能的实施方式中，确定K个空间相关参数与N个传输块的映射关系包括：根据N个传输块的复用方式确定K个空间相关参数与N个传输块的映射关系，其中，复用方式包括空分复用、时分复用、频分复用中的至少一种。
在一种可能的实施方式中，N个传输块采用一种复用方式，N个传输块包括K组传输块；K个空间相关参数与N个传输块的映射关系，包括：按照第一顺序排列的K个空间相关参数依次映射至按照一种复用方式对应的顺序排列的K组传输块。
在一种可能的实施方式中，K个空间相关参数与N个传输块的映射关系，包括：按照第一顺序排列的K个空间相关参数依次映射至N个传输块。也就是说，空间相关参数是按第一顺序排列的。
在一种可能的实施方式中，K个空间相关参数与N个传输块的映射关系，包括：按照第一顺序排列的K个空间相关参数中的第i个空间相关参数映射至N个传输块中的第K*j+i个传输块，其中，i和j为整数，且1≤i≤K，1≤K*j+i≤N，
Figure PCTCN2020079607-appb-000006
Figure PCTCN2020079607-appb-000007
Figure PCTCN2020079607-appb-000008
表示向上取整。该实施方式针对每个空间相关参数与单个传输块之间的映射关系进行了说明。
在一种可能的实施方式中，N个传输块采用一种复用方式，N个传输块按照一种复用方式对应的顺序排列。
在一种可能的实施方式中，N个传输块采用至少两种复用方式，至少两种复用方式包括第一复用方式，N个传输块包括M组传输块，M为正整数，每组传输块中的传输块按照第一复用方式对应的顺序排列。
在一种可能的实施方式中，N个传输块采用两种复用方式，M组传输块之间按照第二复用方式对应的顺序排列。
在一种可能的实施方式中，第一复用方式为空分复用，第二复用方式为时分复用或频分复用；或者，第一复用方式为时分复用，第二复用方式为频分复用；或者，第一复用方式为频分复用，第二复用方式为时分复用。当第一复用方式采用空分复用时，可以获得更好的空分复用效果，也即将K个空间相关参数优先映射至空分复用的传输块可以获得更好的空分复用效果。第一复用方式为频分复用，第二复用方式为时分复用适用于当终端设备具有多个天线面板时的情况，可选地，该多个天线面板是激活的。第一复用方式为时分复用，第二复用方式为频分复用适用于当终端设备具有单个天线面板时的情况，可选地，该单个天线面板是激活的。
在一种可能的实施方式中，按照第一顺序排列的K个空间相关参数依次映射至每组资源中按照第一复用方式对应的顺序排列的资源，再在各组资源之间重复映射。或者说，N个资源可以按照先组内再组间的顺序排列。按照第一顺序排列的K个空间相关参数可以依次循环映射至按该顺序排列的N个资源。
在一种可能的实施方式中，采用三种复用方式，各组传输块之间先按照第二复用方式对应的顺序排列后按照第三复用方式对应的顺序排列。
在一种可能的实施方式中，第一复用方式为空分复用，第二复用方式为时分复用，第三复用方式为频分复用，或者，第一复用方式为空分复用，第二复用方式为频分复用，第三复用方式为时分复用。
在一种可能的实施方式中，第一顺序为：空间相关参数的标识从小到大的顺序，或者空间相关参数的标识从大到小的顺序，或者第一指示信息指示的K个空间相关参数的先后顺序。
在一种可能的实施方式中，空分复用的复用方式对应的顺序为：解调参考信号端口的索引从小到大的顺序，或者，解调参考信号端口的索引从大到小的顺序，或者解调参考信号端口组的索引从小到大的顺序，或者解调参考信号端口组的索引从大到小的顺序或者，天线端口字域指示的解调参考信号端口组的索引从小到大的顺序，或者，天线端口字域指示的解调参考信号端口组的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口的索引从小到大的顺序，或者，天线端口字域指示的解调参考信号端口的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口组的索引的顺序，或者，天线端口字域指示的解调参考信号端口的索引的顺序；每个或每几个解调参考信号端口或解调参考信号端口组用于解调N个传输块中的一个传输块。
在一种可能的实施方式中，空分复用的复用方式对应的顺序为：解调参考信号端口的索引从小到大的顺序，或者，解调参考信号端口的索引从大到小的顺序，或者解调参考信号端口组的索引从小到大的顺序，或者解调参考信号端口组的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口组的索引从小到大的顺序，或者，天线端口字域指示的解调参考信号端口组的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口的索引从小到大的顺序，或者，天线端口字域指示的解调参考信号端口的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口组的索引的顺序，或者，天线端口字域指示的解调参考信号端口的索引的顺序；每个或每几个解调参考信号端口、解调参考信号端口组对应N个资源中的一个资源。
在一种可能的实施方式中，时分复用的复用方式对应的顺序为：时域资源的索引从小到大的顺序，或者，时域资源的索引从大到小的顺序，每个时域资源用于承载N个传输块中的一个传输块。
在一种可能的实施方式中，频分复用的复用方式对应的顺序为：频域资源的索引从小到大的顺序，或者，频域资源的索引从大到小的顺序，其中，每个频域资源用于承载N个传输块中的一个传输块。
在一种可能的实施方式中，空间相关参数为空间相关信息或传输配置指示TCI信息。即本申请实施例提供的实施方式既可用于PDSCH传输，也可用于PUSCH传输。
在一种可能的实施方式中，N个传输块采用时分复用和频分复用的复用方式，N个传输块包括M组传输块；K个空间相关参数与N个传输块的映射关系，包括：按照第一顺序排列的K个空间相关参数中的第i个空间相关参数映射至M组传输块中的第K*j+i组传输块，其中，i和j为整数，且1≤i≤K，1≤K*j+i≤M，
Figure PCTCN2020079607-appb-000009
Figure PCTCN2020079607-appb-000010
表示向上取整。
K个空间相关参数与N个传输块的映射关系可以是网络设备配置的，或者是协议预定义的，或者是终端设备根据至少两个传输块的频域或时域间距确定的。例如，当N个传输块中相邻传输块之间的频域或时域间距大于第一门限时，可以采用按照第一顺序排列的K个空间相关参数依次映射至N个传输块的方式或按照第一顺序排列的K个空间相关参数中的第i个空间相关参数映射至N个传输块中的第K*j+i个传输块的方式，该方式可以使得传输块之间频域或时域间距较大时获得更好的分集增益；当N个传输块中相邻传输块之间的频域或时域间距小于第一门限时，可以采用按照第一顺序排列的K个空间相关参数依次映射至按照一种复用方式对应的顺序排列的K组传输块的方式，该方式可以使得输块之间频域或时域间距较小时，避免频繁波束切换及过多的信道估计，从而降低终端设备的实现复杂度。
第三方面，提供了一种终端设备，包括：处理模块和收发模块；用于执行第一方面及其任一实施方式所述的通信方法。具体的，收发模块，用于接收第一指示信息，其中，第一指示信息用于指示接收N个传输块的K个空间相关参数，其中，N个传输块是相同的传输块，K和N为大于1的整数，并且K≤N；处理模块，用于确定K个空间相关参数与N个传输块的映射关系；收发模块，还用于根据映射关系接收N个传输块。
在一种可能的实施方式中，处理模块具体用于：根据N个传输块的复用方式确定 K个空间相关参数与N个传输块的映射关系，其中，复用方式包括空分复用、时分复用、频分复用中的至少一种。
第四方面，提供了一种网络设备，包括：处理模块和收发模块；用于执行第二方面及其任一实施方式所述的通信方法。具体的，收发模块，用于发送第一指示信息，其中，第一指示信息用于指示接收N个传输块的K个空间相关参数，其中，N个传输块是相同的传输块，K和N为大于1的整数，并且K≤N；处理模块，用于确定K个空间相关参数与N个传输块的映射关系；收发模块，还用于根据映射关系发送N个传输块。
在一种可能的实施方式中，处理模块具体用于：根据N个传输块的复用方式确定K个空间相关参数与N个传输块的映射关系，其中，复用方式包括空分复用、时分复用、频分复用中的至少一种。
第五方面，提供一种通信装置，包括：处理器和存储器，存储器用于存储程序，处理器调用存储器存储的程序，以执行如第一方面所述的通信方法。
第六方面，提供一种通信装置，包括：处理器和存储器，存储器用于存储程序，处理器调用存储器存储的程序，以执行如第二方面所述的通信方法。
第七方面，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指令，当该指令在计算机或处理器上运行时，使得计算机或处理器执行如第一方面或者其任一种可能的实施方式中的通信方法，或者执行如第二方面或者其任一种可能的实施方式中的通信方法。
第八方面，提供了一种包含指令的计算机程序产品，当该指令在计算机或处理器上运行时，使得计算机或处理器执行如第一方面或者其任一种可能的实施方式中的通信方法，或者执行如第二方面或者其任一种可能的实施方式中的通信方法。
第九方面，提供了一种通信系统，包括如第三方面所述的终端设备和如第四方面所述的网络设备，或者，包括如第五方面所述的通信装置和如第六方面所述的通信装置。
第三方面至第九方面的技术效果可以参照第一方面至第二方面的各种可能实施方式所述内容。
附图说明
图1为本申请实施例提供的一种通信系统的架构示意图；
图2为本申请实施例提供的一种终端设备的结构示意图一；
图3为本申请实施例提供的一种网络设备的结构示意图一；
图4为本申请实施例提供的一种波束训练的示意图；
图5为本申请实施例提供的一种通信方法的流程示意图；
图6为本申请实施例提供的一种空间相关参数与传输块之间映射关系的示意图；
图7为本申请实施例提供的一种复用方式的空间相关参数与传输块之间映射关系的示意图一；
图8为本申请实施例提供的一种复用方式时空间相关参数与传输块之间映射关系的示意图二；
图9为本申请实施例提供的一种复用方式时空间相关参数与传输块之间映射关系 的示意图三；
图10为本申请实施例提供的一种复用方式时空间相关参数与传输块之间映射关系的示意图四；
图11为本申请实施例提供的一种复用方式时空间相关参数与传输块之间映射关系的示意图五；
图12为本申请实施例提供的一种复用方式时空间相关参数与传输块之间映射关系的示意图六；
图13为本申请实施例提供的一种复用方式时空间相关参数与传输块之间映射关系的示意图七；
图14为本申请实施例提供的一种复用方式时空间相关参数与传输块之间映射关系的示意图八；
图15为本申请实施例提供的两种复用方式时空间相关参数与传输块之间映射关系的示意图一；
图16为本申请实施例提供的两种复用方式时空间相关参数与传输块之间映射关系的示意图二；
图17A为本申请实施例提供的两种复用方式时空间相关参数与传输块之间映射关系的示意图三；
图17B为本申请实施例提供的两种复用方式时空间相关参数与传输块之间映射关系的示意图四；
图18为本申请实施例提供的两种复用方式时空间相关参数与传输块之间映射关系的示意图五；
图19为本申请实施例提供的三种复用方式时空间相关参数与传输块之间映射关系的示意图一；
图20为本申请实施例提供的三种复用方式时空间相关参数与传输块之间映射关系的示意图二；
图21为本申请实施例提供的终端设备的结构示意图二；
图22为本申请实施例提供的网络设备的结构示意图二。
具体实施方式
本申请实施例既可以应用于时分双工(time division duplexing，TDD)的场景，也可以适用于频分双工(frequency division duplexing，FDD)的场景。
本申请实施例依托无线通信网络中第五代(5th generation，5G)通信网络的场景进行说明，应当指出的是，本申请实施例中的方案还可以应用于其他无线通信网络中，例如第六代移动通信系统，相应的名称也可以用其他无线通信网络中的对应功能的名称进行替代。本申请涉及的5G移动通信系统包括非独立组网(non-standalone，NSA)的5G移动通信系统和/或独立组网(standalone，SA)的5G移动通信系统。
本申请实施例可以适用于长期演进(long term evolution，LTE)系统，例如NB-IoT系统中，或者，也可以适用于高级的长期演进(LTE Advanced，LTE-A)系统。也可以适用于其他无线通信系统，例如全球移动通信系统(global system for mobile communication，GSM)，移动通信系统(universal mobile telecommunications system， UMTS)，码分多址接入(code division multiple access，CDMA)系统，以及新的网络设备系统等。下面以LTE系统为例进行具体实施例的介绍。
如图1所示，本申请实施例提供的通信系统100，包括网络设备101和终端设备102-107。
本申请实施例涉及的终端设备，可以是指向用户提供语音和/或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端可以经无线接入网(radio access network，RAN)与一个或多个核心网进行通信，无线终端可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语音和/或数据。例如，用户设备(user equipment，UE)、个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)等设备。无线终端也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端(remote terminal)、接入终端(access terminal)、用户终端(user terminal)、用户代理(user agent)、用户设备(user device)、或用户装备(user equipment)。示例性的，终端设备可以为高铁通信设备102、智能空调103、智能加油机104、手机105、智能茶杯106、打印机107等，本申请不作限定。
本申请实施例所涉及网络设备可以为基站，该基站可用于将收到的空中帧与互联网协议(internet protocol，IP)分组进行相互转换，作为无线终端与接入网的其余部分之间的路由器，其中接入网的其余部分可包括IP网络设备。该基站还可协调对空中接口的属性管理。例如，基站可以是GSM或CDMA中的基站(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple access，WCDMA)中的基站(NodeB)，还可以是LTE中的演进型基站(evolutional Node B，eNB或e-NodeB)，还可以是5G中的gNB，本申请实施例并不限定。上述基站仅是举例说明，网络设备还可以为中继站、接入点、车载设备、可穿戴设备以及其它类型的设备。
如图2所示，以终端设备为手机为例，对终端设备的结构进行说明。
终端设备105可以包括：射频(radio frequency，RF)电路110、存储器120、输入单元130、显示单元140、传感器150、音频电路160、无线保真(wireless fidelity，Wi-Fi)模块170、处理器180、蓝牙模块181、以及电源190等部件。
RF电路110可用于在收发信息或通话过程中信号的接收和发送，可以接收基站的下行数据后交给处理器180处理；可以将上行数据发送给基站。通常，RF电路包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等器件。
存储器120可用于存储软件程序及数据。处理器180通过运行存储在存储器120的软件程序或数据，从而执行终端设备105的各种功能以及数据处理。存储器120可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。存储器120存储有使得终端设备105能运行的操作系统，例如苹果公司所开发的
Figure PCTCN2020079607-appb-000011
操作系统，谷歌公司所开发的
Figure PCTCN2020079607-appb-000012
开源操作系统，微软公司所开发的
Figure PCTCN2020079607-appb-000013
操作系统等。本申请中存储器120可以 存储操作系统及各种应用程序，还可以存储执行本申请实施例所述方法的代码。
输入单元130(例如触摸屏)可用于接收输入的数字或字符信息，产生与终端设备105的用户设置以及功能控制有关的信号输入。具体地，输入单元130可以包括设置在终端设备105正面的触控屏131，可收集用户在其上或附近的触摸操作。
显示单元140(即显示屏)可用于显示由用户输入的信息或提供给用户的信息以及终端设备105的各种菜单的图形用户界面(graphical user interface，GUI)。显示单元140可包括设置在终端设备105正面的显示屏141。其中，显示屏141可以采用液晶显示器、发光二极管等形式来配置。显示单元140可以用于显示本申请中所述的各种图形用户界面。触控屏131可以覆盖在显示屏141之上，也可以将触控屏131与显示屏141集成而实现终端设备105的输入和输出功能，集成后可以简称触摸显示屏。
终端设备105还可以包括至少一种传感器150，比如加速度传感器155、光传感器、运动传感器。终端设备105还可配置有陀螺仪、气压计、湿度计、温度计、红外线传感器等其他传感器。
音频电路160、扬声器161、麦克风162可提供用户与终端设备105之间的音频接口。音频电路160可将接收到的音频数据转换后的电信号，传输到扬声器161，由扬声器161转换为声音信号输出；另一方面，麦克风162将收集的声音信号转换为电信号，由音频电路160接收后转换为音频数据，再将音频数据输出至RF电路110以发送给比如另一终端，或者将音频数据输出至存储器120以便进一步处理。
Wi-Fi属于短距离无线传输技术，终端设备105可以通过Wi-Fi模块170帮助用户收发电子邮件、浏览网页和访问流媒体等，它为用户提供了无线的宽带互联网访问。
处理器180是终端设备105的控制中心，利用各种接口和线路连接整个终端的各个部分，通过运行或执行存储在存储器120内的软件程序，以及调用存储在存储器120内的数据，执行终端设备105的各种功能和处理数据。在一些实施例中，处理器180可包括一个或多个处理单元；处理器180还可以集成应用处理器和基带处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，基带处理器主要处理无线通信。可以理解的是，上述基带处理器也可以不集成到处理器180中。本申请中处理器180可以运行操作系统、应用程序、用户界面显示及触控响应，以及本申请实施例所述的通信方法。
蓝牙模块181，用于通过蓝牙协议来与其他具有蓝牙模块的蓝牙设备进行信息交互。例如，终端设备105可以通过蓝牙模块181与同样具备蓝牙模块的可穿戴电子设备(例如智能手表)建立蓝牙连接，从而进行数据交互。
终端设备105还包括给各个部件供电的电源190(比如电池)。电源可以通过电源管理系统与处理器180逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗等功能。
如图3所示，本申请实施例提供了一种网络设备的结构示意图。网络设备300包括：至少一个处理器301、至少一个存储器302、至少一个通信接口303。其中，至少一个处理器301、至少一个存储器302、至少一个通信接口303可以通过总线相连。
存储器302，用于存储计算机程序代码。
处理器301，用于调用存储器302存储的计算机程序代码，以执行下述各方法实 施例中网络设备的功能。
通信接口303，用于与其他通信装置例如终端设备之间进行通信。该通信接口303可以以无线通信方式进行通信。
下面对本申请中涉及的概念进行描述：
控制资源集合(control resource set，CORESET)：
为了提高终端设备盲检控制信道的效率，NR标准制定过程中提出了控制资源集合的概念。网络设备可为终端设备配置一个或多个资源集合，用于发送物理下行控制信道(physical downlink control channel，PDCCH)。网络设备可以在终端设备对应的任一控制资源集合上，向终端设备发送PDCCH。此外，网络设备还可以通知终端设备上述控制资源集合的其他配置信息，例如搜索空间集合等。每个控制资源集合的配置信息存在差异，例如频域宽度差异、时域长度差异等。可扩展地，本申请中的控制资源集合可以是5G移动通信系统定义的CORESET、控制区域(control region)或增强物理下行控制信道(enhanced physical downlink control channel，ePDCCH)集合(set)。
天线端口(antenna port)：
天线端口简称端口，指设备所识别的发射天线，或者在空间上可以区分的发射天线。每个天线端口用于配置一个虚拟天线，每个虚拟天线可以为多个物理天线的加权组合，并且每个天线端口可以与一个参考信号的端口对应。
准共址(quasi-collocation，QCL)信息：
QCL也可以称为准共站，QCL信息用于辅助描述终端设备接收侧波束赋形信息以及接收处理流程。QCL信息可以指示目标参考信号与源参考信号之间的QCL关系，其中，目标参考信号可以包括解调参考信号(demodulation reference signal，DMRS)、信道状态信息参考信号(channel state information reference signal，CSI-RS)等；源参考信号可以包括CSI-RS、追踪参考信号(tracking reference signal，TRS)、同步信号广播信道块(synchronous signal/physical broadcast channel block，SSB)等。满足QCL关系的源参考信号与目标参考信号的空间特性参数是相同的，从而基于该源参考信号资源索引可推断出目标参考信号的空间特性参数。其中，空间特性参数包括以下参数中的至少一种：
入射角(angle of arrival，AoA)、主(dominant)入射角、平均入射角、入射角的功率角度谱(power angular spectrum，PAS)、出射角(angle of departure，AoD)、主出射角、平均出射角、出射角的功率角度谱、终端发送波束成型、终端接收波束成型、空间信道相关性、基站发送波束成型、基站接收波束成型、平均信道增益、平均信道时延(average delay)、时延扩展(delay spread)、多普勒扩展(Doppler spread)、多普勒频移(Doppler shift)、空间接收参数(spatial Rx parameters)等。
QCL信息描述了源参考信号与目标参考信号的天线端口间的空间信道特性，有助于终端设备根据该QCL信息完成接收侧波束赋形或接收处理过程。
为了节省网络设备向终端设备指示QCL信息的开销，作为一种可选的实施方式，网络设备侧可以指示PDCCH或物理下行共享信道(physical downlink shared channel，PDSCH)的解调参考信号与终端设备之前上报的多个参考信号资源中的至少一个是满足QCL关系的，例如，假设终端设备上报至少一个CSI-RS资源索引，每一个CSI-RS 资源索引对应一个之前基于该CSI-RS资源测量时建立的一个收发波束对。网络设备指示的QCL信息指示了PDCCH或PDSCH的解调参考信号与上述CSI-RS资源中的至少一个满足QCL关系，由于满足QCL关系的两个参考信号的接收波束信息是相同的，从而终端设备可以基于该QCL信息和该CSI-RS资源索引推断出接收PDCCH或PDSCH的接收波束信息。
现有标准中定义了四种类型的QCL信息，网络设备可以同时给终端设备配置至少一个类型(types)的QCL，例如，QCL类型A+D，QCL类型C+D等。其中：
QCL类型A包括：多普勒频移(Doppler shift)、多普勒扩展(Doppler spread)、平均信道时延(average delay)、时延扩展(delay spread)。
QCL类型B包括：多普勒频移、多普勒扩展。
QCL类型C包括：平均信道时延、多普勒频移。
QCL类型D包括：空间接收参数(spatial Rx parameters)。
空间关系(spatial relation)信息：
空间关系信息用于辅助描述终端设备发射侧波束赋形信息以及发射处理流程。空间关系信息可以指示源参考信号与目标参考信号之间的空间接收参数关系，其中，目标参考信号可以包括DMRS、探测参考信号(sounding reference signal，SRS)等；源参考信号可以包括CSI-RS、SRS、SSB等。满足空间关系信息的源参考信号与目标参考信号的空间特性参数是相同的，从而基于源参考信号资源索引可推断出目标参考信号的空间特性参数。关于空间特性参数见前面描述，在此不再重复。
空间关系信息描述了源参考信号与目标参考信号的天线端口间的空间信道特性，有助于终端设备根据该空间关系信息完成发射侧波束赋形或发射处理过程。
传输配置指示(transmission configuration indicator，TCI)信息：
TCI信息用于指示两种参考信号之间的QCL关系，例如PDCCH/CORESET或者是PDSCH的QCL信息。TCI信息是指TCI中包括的参考信号与PDCCH/PDSCH的DMRS满足QCL关系，主要用于指示接收PDCCH/PDSCH时，其空间接收参数等信息与TCI中包括的参考信号的空间接收参数等信息相同或相似。
同步信号广播信道块同步信号广播信道块(synchronous signal/physical broadcast channel block，SSB)：
SSB包括主同步信号(primary synchronization signal，PSS)、辅同步信号(secondary synchronization signal，SSS)和物理广播信道(physical broadcast channel，PBCH)中的至少一个，主要用于小区搜索、小区同步、承载广播信息的信号。
波束(beam)：
波束是一种通信资源，波束可以是宽波束、窄波束，或者其他类型波束。形成波束的技术可以是波束赋形技术或者其他技术。波束赋形技术可以包括数字波束赋形技术、模拟波束赋形技术、混合数字/模拟波束赋形技术。不同的波束可以认为是不同的资源。通过不同的波束可以发送相同的信息或者不同的信息。
可选的，可以将具有相同或者类似的通信特征的多个波束视为是一个波束。一个波束可以对应一个或多个天线端口，用于传输数据信道、控制信道和探测信号等。发射波束可以指无线信号经天线发射出去后在空间不同方向上形成的信号强度的分布， 接收波束可以指从天线上接收到的无线信号在空间不同方向上的信号强度分布。可以理解的是，形成一个波束的一个或多个天线端口也可以看作是一个天线端口集。
波束可以分为网络设备的发送波束和接收波束以及终端设备的发送波束和接收波束。网络设备的发送波束用于描述网络设备发送侧波束赋形信息，网络设备的接收波束用于描述网络设备接收侧波束赋形信息，终端设备的发送波束用于描述终端设备发送侧波束赋形信息，终端的接收波束用于描述终端设备接收侧波束赋形信息。也即波束用于描述波束赋形信息。
波束可以对应时间资源、空间资源、频域资源。
可选地，波束还可以与参考信号资源(例如，波束赋形的参考信号资源)或者波束赋形信息对应。
可选地，波束还可以与网络设备的参考信号资源关联的信息对应，其中参考信号可以为CSI-RS、SSB、DMRS、相位跟踪信号(phase tracking reference signal，PTRS)、跟踪信号(tracking reference signal、TRS)等。参考信号资源关联的信息可以是参考信号资源索引、QCL信息(特别是类型D的QCL信息)等。其中，参考信号资源索引对应之前基于该参考信号测量时建立的一个收发波束对，通过该参考信号资源索引，终端设备可推断收发波束对的波束信息。
可选地，波束还可以与空域滤波器(spatial filter/spatial domain filter)、空域传输滤波器(spatial domain transmission filter)、空间滤波器、空间传输滤波器对应。其中，接收波束可以等价于空间传输滤波器、空域传输滤波器、空域接收滤波器或空间接收滤波器。发送波束可以等价于空域滤波器、空域传输滤波器、空域发送滤波器或空间发送滤波器。空间相关参数的信息等价于空间滤波器(spatial domain transmission/receive filter)。
可选地，空间滤波器一般包括空间发送滤波器和/或空间接收滤波器。空间滤波器还可以称之为空域发送滤波器、空域接收滤波器、空间传输滤波器、空域传输滤波器等。可选地，终端设备侧的接收波束和网络设备侧的发送波束可以为下行空间滤波器，终端设备侧的发送波束和网络设备侧的接收波束可以为上行空间滤波器。
随着通信系统逐渐开始使用具有更大可用带宽的高频频段来进行通信，高频频段将导致更大的路径损耗，因此引入了波束赋形技术以获取较大的天线增益，从而抵消这种路径损耗。
当信号基于波束赋形技术进行传输时，一旦终端设备发生移动，传输信号对应的赋形波束的方向不再匹配移动后的位置，从而使得接收信号频繁中断。相比小区切换，终端设备在不同赋形波束间的切换更加动态和频繁，为跟踪信号传输过程中的赋形波束变化，引入了一种基于波束赋形技术的信道质量测量及信道质量测量结果上报方法，其中，信道质量测量可以基于波束赋形后的同步信号或小区特定参考信号；类似于CSI信息的上报，赋形波束的信道质量测量结果的上报也可由终端设备通过物理上行控制信道(physical uplink control channel，PUCCH)或物理上行共享信道(physical uplink shared channel，PUSCH)发送给网络设备。
具体的，如图4所示，为波束赋型的波束训练过程。
其中，如图4中(E)所示为网络设备的发射波束的训练过程，终端设备通过对网 络设备发送的多个波束进行测量选择其中较优的N个波束，并将较优的N个波束的波束测量信息上报给网络设备。如图4中(D)所示为终端设备的发射波束的训练过程，网络设备通过对终端设备发送的多个波束进行测量选择其中较优的M个波束，并可以将网络设备通过一次或者多次波束训练过程选择的较优的波束指示给终端设备。
波束测量信息即波束状态信息(beam state information，BSI)，包括波束索引、波束的参考信号接收功率(reference signal received power，RSRP)。此外，在标准中不直接指示具体的波束，在网络设备的发射波束通过参考信号资源索引来表示，例如波束索引1在标准中描述为参考信号资源索引1；终端设备侧的接收波束通过QCL信息中的空间接收参数(Spatial Rx parameter)来指示，波束测量信息(波束状态信息)在标准中描述为L1-RSRP或L1-SINR相关信息(L1-RSRP related information)。
最优的N个波束对(beam pair link，BPL)的选择。其中，一个BPL包括一个网络设备的发射波束和一个终端设备的接收波束，或者，一个BPL包括一个终端设备的发射波束和一个网络设备的接收波束。如图4中的(A)和(B)所示，终端设备基于网络设备的波束扫描实现对网络设备的发射波束和/或终端的接收波束的选择；网络设备基于终端设备的波束扫描实现对终端设备的发射波束和/或网络设备的接收波束的选择。波束扫描指通过不同的发射波束发送参考信号的过程。
发射波束的更新。该发射波束可以为网络设备的发射波束，也可以为终端设备的发射波束。当该发射波束为网络设备的发射波束时，如图4中(E)所示，网络设备通过不同的发射波束向终端设备发送参考信号，终端设备通过同一个接收波束来接收网络设备通过不同的发射波束发送的参考信号，并基于接收信号确定网络设备的较优发射波束，然后将网络设备的较优发射波束发送给网络设备，以便网络设备对发射波束进行更新。当该发射波束为终端设备的发射波束时，如图4中的(E)所示，终端设备通过不同的发射波束向网络设备发送参考信号，网络设备通过同一个接收波束来接收终端设备通过不同的发射波束发送的参考信号，并基于接收信号确定终端设备的较优发射波束，然后将终端设备的较优发射波束发送给终端设备，以便终端设备对发射波束进行更新。其中，基于接收信号确定较优发射波束的过程可以称为波束匹配。
接收波束的更新。该接收波束可以为网络设备的接收波束，也可以为终端设备的接收波束。当该接收波束为网络设备的接收波束时，如图4中(F)所示，终端设备通过同一个发射波束向网络设备发送参考信号，网络设备通过不同的接收波束来接收终端设备发送的参考信号，并基于接收信号确定网络设备的较优接收波束，然后网络设备根据较优接收波束对网络设备的接收波束进行更新。当该接收波束为终端设备的接收波束时，如图4中的(C)所示，网络设备通过同一个发射波束向终端设备发送参考信号，终端设备通过不同的接收波束来接收网络设备发送的参考信号，并基于接收信号确定终端设备的较优接收波束，然后终端设备根据较优接收波束对终端设备的接收波束进行更新。
在下行信号的传输中，网络设备的发射波束和终端设备的接收波束均可能发生动态变化，终端设备基于接收信号确定的较优接收波束可能包括多个，为了使终端设备确定自身的接收波束，终端设备可以将多个接收波束的波束信息发送给网络设备，网络设备可以通过向终端设备发送波束指示信息来向终端设备指示终端设备的接收波束。 当终端设备采用模拟域的波束赋形时，终端设备可以基于网络设备发送的波束指示信息来精确的确定终端设备的接收波束，从而可以节省终端设备的波束扫描时间，达到省电的效果。
本申请实施例提供了一种通信方法，如图5中所示，该方法可以包括S501-S505，或者，该方法可以包括S501-S503以及S506-S507。其中，S501-S505用于网络设备与终端设备进行下行信号/数据/信道(如PDSCH)传输，S501-S503以及S506-S507用于网络设备与终端设备进行上行信号/数据/信道(如PUSCH)传输：
S501、网络设备向终端设备发送第一指示信息。
相应地，终端设备从网络设备接收第一指示信息。
其中，第一指示信息用于指示接收N个传输块的K个空间相关参数。对于PDSCH来说，空间相关参数指前文所述的TCI。对于PUSCH来说，空间相关参数指前文所述的空间关系(spatial relation)信息。本申请实施例以空间相关参数为TCI为例进行说明，但并不意在限定。
N个传输块是相同的传输块，可以理解为一个传输块重复N次，还可以理解为一个传输块配置的重复次数(repetition number)为N，等等，本申请并不限定。
需要说明的是，本申请各实施例中，N个传输块可以替换为承载在N个资源上的传输块。该N个资源中可以承载一个传输块的N次重复，一个传输块的N次重复可以理解为N个资源上的传输块是相同的传输块，还可以理解为一个传输块配置的重复次数(repetition number)为N，等等，本申请并不限定；或者，该N个资源可以承载一个传输块(也可以理解为一个TB分为多个部分分别承载在多个资源上)；或者，该N个资源可以承载多个传输块的多次重复。本申请对此不做限定。
本申请各实施例中，N个传输块可以替换为N个资源。进一步的，传输块的复用方式可以替换为资源的复用方式，空间相关参数与传输块之间映射关系，可以替换为空间相关参数与资源之间映射关系。比如，K个空间相关参数与N个传输块的映射关系可以替换为K个空间相关参数与N个资源的映射关系。进一步的，用于解调传输块可以替换为用于对应资源上的传输块。进一步的，N个传输块中的一个传输块可以替换为N个资源中的一个资源。应理解，此时N个传输块是相同的传输块的限制没有了。
K和N为大于1的整数，并且K≤N。需要说明的是，本申请实施例中示例性的以K<N为例进行说明，但并不意在限定于此。
具体的，上述第一指示信息可以通过第二指示信息、第三指示信息、第四指示信息中的至少一种来传递。其中，第二指示信息可以通过无线资源控制(radio resource control，RRC)信令承载，第三指示信息可以通过媒体接入控制元素(media access control-control element，MAC-CE)信令承载，第四指示信息可以通过下行控制信息(downlink control information，DCI)信令承载。
示例性的，第一指示信息可以通过第二指示信息、第三指示信息、第四指示信息联合指示。其中，第二指示信息用于指示多个候选的空间相关参数，第三指示信息用于指示多个候选的空间相关参数中多个激活的空间相关参数，第四指示信息用于指示多个激活的空间相关参数中K个空间相关参数。
示例性的，第一指示信息还可以通过第二指示信息、第三指示信息或者第四指示信息中的一种来传递。即第二指示信息、第三指示信息或者第四指示信息中的一种可以用于指示K个空间相关参数。
示例性的，第一指示信息还可以通过第二指示信息和第三指示信息来传递。其中，第二指示信息可以用于指示多个候选的空间相关参数，第三指示信息可以用于指示多个候选的空间相关参数中的K个空间相关参数。
示例性的，第一指示信息还可以通过第三指示信息和第四指示信息来传递。其中，第三指示信息可以用于指示多个候选的空间相关参数，第四指示信息可以用于指示多个候选的空间相关参数中的K个空间相关参数。
示例性的，第一指示信息还可以通过第二指示信息和第四指示信息来传递。其中，第二指示信息可以用于指示多个候选的空间相关参数，第四指示信息可以用于指示多个候选的空间相关参数中的K个空间相关参数。
需要说明的是，第一指示信息用于指示接收N个传输块的K个空间相关参数，还可以理解为第一指示信息用于指示K个空间相关参数和N个传输块，该K个空间相关参数用于接收N个传输块。第一指示信息用于指示接收N个传输块的K个空间相关参数，还可以理解为第一指示信息用于指示K个空间相关参数，所述K个空间相关参数用于接收N个传输块。
S502、网络设备确定K个空间相关参数与N个传输块的映射关系。
具体的，网络设备可以根据N个传输块的复用方式确定K个空间相关参数与N个传输块的映射关系。
其中，传输块的复用方式可以包括空分复用(space division multiplexing，SDM)、时分复用(time division multiplexing，TDM)、频分复用(frequency division multiplexing，FMD)中的至少一种。
需要说明的是，本申请实施例中，为了方便清楚地描述K个空间相关参数与N个传输块的映射关系，引入了对N个传输块进行分组的概念。但并不意在限定在实际应用或标准中执行分组的动作，也不限定在实际应用或标准中N个传输分组和N个传输块与K个空间相关参数映射的执行顺序，只要实现K个空间相关参数与N个传输块相同的映射关系，即在本申请的保护范围内。
同样需要说明的，本申请各实施例中提到的对N个传输块排序或K个空间参数排序也仅仅是为了方便描述，在实际应用或标准中可以执行排序的动作，也可以不执行排序的动作。可以理解的，本步骤S502可以替换为网络设备获得K个空间相关参数与N个传输块的映射关系。此时，本申请各实施例中的映射关系可以是网络设备或网络设备内部特定模块确定的，也可以是网络设备从其它网元获得的。
需要说明的是，本申请实施例中，“K个空间相关参数与N个传输块的映射关系”也可以描述为“N个传输块的映射关系与K个空间相关参数的映射关系”；按照顺序A排列的K个空间相关参数映射至按照顺序B排列的N个传输块；还可以描述为按照顺序B排列的N个传输块映射至按照顺序A排列的K个空间相关参数。应理解，本申请实施例中，为了描述方便，对K个空间相关参数和N个传输块进行排序，并不意在限定在实际应用或标准中执行排序的动作，只要实现K个空间相关参数与N个传输 块相同的映射关系，即在本申请的保护范围内。
可以根据N个传输块的复用方式将N个传输块分组，并按照分组的顺序与K个空间相关参数映射。或者，也可以将N个传输块与K个空间相关参数进行映射再分组。
N个传输块与K个空间相关参数的映射关系主要包括：
可选的，N个传输块采用一种复用方式，N个传输块包括(被划分为)K组传输块，则K个空间相关参数与N个传输块的映射关系，包括：按照第一顺序排列的K个空间相关参数依次映射至按照所述一种复用方式对应的顺序排列的K组传输块。
即每个空间相关参数对应一组传输块，组与组之间按照所述一种复用方式对应的顺序排列。进一步的，N个传输块可以按照所述一种复用方式对应的顺序划分为K组传输块。
示例性的，N个传输块可以按照所述一种复用方式对应的顺序等分为K组传输块，可以理解为前面的每组传输块有
Figure PCTCN2020079607-appb-000014
个传输块，最后一组传输块包括
Figure PCTCN2020079607-appb-000015
Figure PCTCN2020079607-appb-000016
个传输块；也可以理解为，第i组传输块包括N个传输块中的第
Figure PCTCN2020079607-appb-000017
Figure PCTCN2020079607-appb-000018
至第
Figure PCTCN2020079607-appb-000019
个传输块，其中，i为整数且1≤i≤K-1，最后一组传输块也即第K组传输块包括N个传输块中的第
Figure PCTCN2020079607-appb-000020
个传输块至第N个传输块。
需要说明的是，对于该一种复用方式为频分复用的N个传输块，由于频域靠近的传输块信道特性更像，通过上述映射方法，可以获得更好的传输块合并效果，此外采用频分复用方式可以更快的完成传输块的传输，减小传输时延。对于时分复用的N个传输块，通过上述映射方法，可以减少波束的或空间相关参数的频繁切换，减小终端设备的实现复杂度。
示例性的，对于该一种复用方式为频分复用方式，分组的依据可以包括：组内的传输块是频域连续的，或者是QCL相关的，或者是在一个子带，或者在一个CC，或者在一个BWP。对于该一种复用方式为时分复用方式，分组的依据可以包括：组内的传输块是时域连续的，或者在一个时间单元内。
如果N个传输块采用时分复用和频分复用的复用方式，N个传输块包括M组传输块；K个空间相关参数与N个传输块的映射关系，包括：按照第一顺序排列的K个空间相关参数中的第i个空间相关参数映射至M组传输块中的第K*j+i组传输块，其中，i和j为整数，且1≤i≤K，1≤K*j+i≤M，
Figure PCTCN2020079607-appb-000021
Figure PCTCN2020079607-appb-000022
表示向上取整。
进一步地，N个传输块可以按照第一复用方式划分为M组传输块，M为正整数，M组传输块之间按照第二复用方式对应的顺序排列。其中，第一复用方式为时分复用，第二复用方式为频分复用；或者第一复用方式为频分复用，第二复用方式为时分复用。
或者可以说，如果N个传输块采用时分复用和频分复用的复用方式，N个传输块按照第一复用方式划分为M组传输块；K个空间相关参数与N个传输块的映射关系，包括：按照第一顺序排列的K个空间相关参数中的第i个空间相关参数映射至按照第二复用方式对应的顺序排列的M组传输块中的第K*j+i组传输块，其中，i和j为整数，且1≤i≤K，1≤K*j+i≤M，
Figure PCTCN2020079607-appb-000023
Figure PCTCN2020079607-appb-000024
表示向上取整，M组传输块。其中，第一复用方式为时分复用，第二复用方式为频分复用；或者第一复用方式为频分复用，第二复用方式为时分复用。
特别地，作为一种可能的实施方式，当终端设备具有单个激活的天线面板(panel) 时，第一复用方式为频分复用，第二复用方式为时分复用；当终端设备具有多个激活的天线面板时，第一复用方式为时分复用，第二复用方式为频分复用。其中该终端设备激活的天线面板的个数可以是网络设备直接或间接指示的，还可以是终端设备显示、隐式、直接或间接上报的，还可以是终端设备按照终端设备能力上报的。
或者也可以说，第一复用方式为频分复用，第二复用方式为时分复用适用于当终端设备具有单个激活的天线面板(panel)的情况。第一复用方式为时分复用，第二复用方式为频分复用适用于当终端设备具有多个激活的天线面板的情况。
或者也可以说，第一复用方式为频分复用，第二复用方式为时分复用适用于当终端设备具有单个天线面板(panel)时的情况，可选地，该单个天线面板是激活的(active)。第一复用方式为时分复用，第二复用方式为频分复用适用于当终端设备具有多个天线面板时的情况，可选地，该多个天线面板是激活的。
需要说明的是，对于第一复用方式为空分复用，第二复用方式为时分复用或频分复用；也可以理解为将K个空间相关参数优先映射至空分复用的传输块，该方法可以获得更好的空分复用效果。
需要说明的是，对于第一复用方式为时分复用，第二复用方式为频分复用；也可以理解为将K个空间相关参数优先映射至时分复用的传输块，该方法可以获得更好的时域分集效果。
需要说明的是，第一复用方式为频分复用，第二复用方式为时分复用；也可以理解为将K个空间相关参数优先映射至频分复用的传输块，该方法可以获得更好的频域分集效果，或者该方法可以避免频繁的波束切换。
示例性的，如图6所示，假设K＝2，N＝6，M＝3，即两个空间相关参数TCI1-TCI2映射至六个相同传输块TB1-TB6，第一组传输块包括TB1-TB2，第二组传输块包括TB3-TB4，第三组传输块包括TB5-TB6，则TCI1可以映射至第一组传输块TB1-TB2，TCI2可以映射至第二组传输块TB3-TB4，TCI1再映射至第三组传输块TB5-TB6。可以理解，图6中示出的是先采用时分复用后采用频分复用的复用方式，对于先采用频分复用后采用时分复用的复用方式，同样适用于本申请实施例，在此不再重复。
参考图6，当资源块TB替换为资源R时(比如，TB1替换为R1，TB2替换为R2等),示例性的，假设K＝2，N＝6，M＝3，即两个空间相关参数TCI1-TCI2映射至六个资源R1-R6，第一组资源包括R1-R2，第二组资源包括R3-R4，第三组资源包括R5-R6，则TCI1可以映射至第一组资源R1-R2，TCI2可以映射至第二组资源R3-R4，TCI1再映射至第三组资源R5-R6。可以理解，图6中示出的是第一复用方式为频分复用，第二复用方式为时分复用的复用方式。对于第一复用方式为时分复用，第二复用方式为频分复用的复用方式，同样适用于本申请实施例，在此不再重复。
本申请实施例中，第一顺序为：空间相关参数的标识从小到大的顺序，或者空间相关参数的标识从大到小的顺序，或者第一指示信息指示的K个空间相关参数的先后顺序。本申请实施例以空间相关参数的标识从小到大的顺序为例进行说明，但并不意在限定。
空分复用的复用方式对应的顺序为：解调参考信号端口的索引从小到大的顺序，或者，解调参考信号端口的索引从大到小的顺序，或者解调参考信号端口组的索引从 小到大的顺序，或者解调参考信号端口组的索引从大到小的顺序，或者解调参考信号码分复用(code division multiplexing，CDM)组的索引从小到大的顺序，或者解调参考信号CDM组的索引从大到小的顺序，或者，天线端口(antenna port)字域指示的解调参考信号端口组的索引从小到大的顺序，或者，天线端口字域指示的解调参考信号端口组的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口的索引从小到大的顺序，或者，天线端口字域指示的解调参考信号端口的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口组的索引的顺序，或者，天线端口字域指示的解调参考信号端口的索引的顺序。每个或每几个解调参考信号端口、解调参考信号端口组、解调参考信号CDM组用于解调所述N个传输块中的一个传输块。本申请实施例以解调参考信号端口的索引从小到大的顺序为例进行说明，但并不意在限定。
应理解，本申请各实施例中的“解调参考信号端口组”可以为“DMRS CDM组”。
例如：协议中预定义的DMRS端口(port)的CDM组9(group)分组的情况如下：
DMRS类型(type)1(支持最多8个端口):DMRS端口{0,1,4,5}属于CDM组0，DMRS端口{2,3,6,7}属于CDM组1；
DMRS类型2(支持最多12个端口):DMRS端口{0,1,6,7}属于CDM组0，DMRS端口{2,3,8,9}属于CDM组1，DMRS端口{4,5,10,11}属于CDM组2。
空分复用的复用方式对应的顺序为：解调参考信号端口的索引从小到大的顺序，或者，解调参考信号端口的索引从大到小的顺序，或者解调参考信号端口组的索引从小到大的顺序，或者解调参考信号端口组的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口组的索引从小到大的顺序，或者，天线端口字域指示的解调参考信号端口组的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口的索引从小到大的顺序，或者，天线端口字域指示的解调参考信号端口的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口组的索引的顺序，或者，天线端口字域指示的解调参考信号端口的索引的顺序；每个或每几个解调参考信号端口、解调参考信号端口组对应N个资源中的一个资源。
示例性的，解调参考信号端口的索引可以指DMRS端口索引，例如：DMRS端口索引可以为8、9、10，则DMRS端口索引从小到大的顺序即为8、9、10，DMRS端口索引从大到小的顺序即为10、9、8。
示例性的，解调参考信号端口组可以指DMRS CDM组，例如：DMRS CDM组最多包括3个标识分别为00、10、11，则DMRS CDM组的索引从小到大的顺序即为00，10，11，DMRS CDM组的索引从大到小的顺序即为11、10、00。示例性的，解调参考信号端口组可以指一个或多个DMRS CDM组，例如：DMRS CDM组最多包括3个标识分别为00、10、11，则DMRS CDM组的索引从小到大的顺序即为00，10，11，DMRS CDM组的索引从大到小的顺序即为11、10、00。例如：N个资源中包括2个空分资源(R1和R2)，K个空间相关参数为TCI1和TCI2；其中，空分资源R1对应DMRS CDM组00中的全部或部分的端口，空分资源R2对应DMRS CDM组01,11中的全部或部分的端口。那么TCI1映射至R1，TCI2映射至R2。
时分复用的复用方式对应的顺序为：时域资源的索引从小到大的顺序，或者，时域资源的索引从大到小的顺序，每个时域资源用于承载所述N个传输块中的一个传输块。其中，时域资源的索引可以是符号(symbol)索引、时隙(slot)索引或子帧(subframe)索引。进一步的，时域资源的索引可以是承载传输块的时域资源起始位置的索引，还可以是承载传输块的时域资源截止位置的索引。本申请实施例以时域资源的索引从小到大的顺序进行说明，但并不意在限定。
应理解，本申请中，“时域资源的索引”还可以替换为“时间单元的索引”。该时域资源的索引可以指传输块所在的时域资源的索引，或者，该时间单元的索引可以指传输块所在的时间单元的索引。
还应理解，本申请中的时间单元可以是LTE或者5G NR系统中定义的一个或多个无线帧，一个或多个子帧，一个或多个时隙，一个或多个微时隙(mini slot)，一个或多个正交频分复用(orthogonal frequency division multiplexing，OFDM)符号，也可以是多个帧或子帧构成的时间窗口，例如系统信息(system information，SI)窗口。
频分复用的复用方式对应的顺序为：频域资源的索引从小到大的顺序，或者，频域资源的索引从大到小的顺序，其中，每个频域资源用于承载所述N个传输块中的一个传输块。其中，频域资源的索引可以是资源块(resource block，RB)索引、传输块所在子带索引、传输块所在的单元载波(component carrier，CC)索引或传输块所在的带宽区域(bandwidth part，BWP)的索引。进一步的，频域资源的索引可以是承载传输块的频域资源起始位置的索引，还可以是承载传输块的频域资源截止位置的索引。本申请实施例以频域资源的索引从小到大的顺序进行说明，但并不意在限定。
示例性的，如图7-图9所示，其中，图7的复用方式为时分复用，图8所示的复用方式为频分复用，图9所示的复用方式为空分复用。假设K＝2，N＝6，即两个空间相关参数TCI1-TCI2映射至六个相同传输块TB1-TB6，第一组传输块包括TB1-TB3，第二组传输块包括TB4-TB6，则TCI1可以映射至传输块TB1-TB3，TCI2可以映射至传输块TB4-TB6。对于图7所示的时分复用的复用方式，可以有效减少波束的频繁切换。对于图8所示的频分复用的复用方式，由于频域靠近的传输块信道特性更像，可以获得更好的传输块合并效果，此外采用频分复用方式可以更快的完成传输块的传输，减小传输时延。对于图9所示的空分复用的复用方式，可以获得更好的空分复用效果。
示例性的，如图7-图9所示，其中，图7的复用方式为时分复用，图8所示的复用方式为频分复用，图9所示的复用方式为空分复用。假设将传输块TB替换为资源R，假设K＝2，N＝6，即两个空间相关参数TCI1-TCI2映射至六个资源R1-R6，第一组资源包括R1-R3，第二组资源包括R4-R6，则TCI1可以映射至资源R1-R3，TCI2可以映射至资源R4-R6。对于图7所示的时分复用的复用方式，可以有效减少波束的频繁切换。对于图8所示的频分复用的复用方式，由于频域靠近的资源信道特性更像，可以获得更好的信息合并效果，此外采用频分复用方式可以更快的完成传输块的传输，减小传输时延。对于图9所示的空分复用的复用方式，可以获得更好的空分复用效果。
需要说明的是，N不能被K整除时，各组传输块中传输块的数目可以不同。
示例性的，如图10所示，以复用方式为时分复用为例进行说明，假设K＝2，N＝7，即两个空间相关参数TCI1-TCI2映射至七个相同传输块TB1-TB7，第一组传输块包括 TB1-TB4，第二组传输块包括TB5-TB7，则TCI1可以映射至传输块TB1-TB4，TCI2可以映射至传输块TB5-TB7。示例性的，如图10所示，以复用方式为时分复用为例进行说明，将传输块TB替换为资源R，假设K＝2，N＝7，即两个空间相关参数TCI1-TCI2映射至七个资源R1-R7，第一组资源包括R1-R4，第二组资源包括R5-R7，则TCI1可以映射至资源R1-R4，TCI2可以映射至资源R5-R7。
对于将N个传输块与K个空间相关参数进行映射再分组，关于分组的依据见前面描述，在此不再重复。
可选的，K个空间相关参数与N个传输块的映射关系，包括：按照第一顺序排列的K个空间相关参数依次映射至N个传输块。或者说，按照第一顺序排列的K个空间相关参数循环依次映射至N个传输块。或者说，按照第一顺序排列的K个空间相关参数中的第i个空间相关参数映射至N个传输块中的第K*j+i个传输块，其中，i和j为整数，且1≤i≤K，1≤K*j+i≤N，
Figure PCTCN2020079607-appb-000025
Figure PCTCN2020079607-appb-000026
表示向上取整。
需要说明的是，当K<N时，一个空间相关参数可以映射至多个传输块，这样可以保证每个传输块均有对应的空间相关参数。
进一步的，如果N个传输块采用一种复用方式，则N个传输块按照所述一种复用方式对应的顺序排列。
示例性的，如图11-图13所示，其中，图11的复用方式为时分复用，图12所示的复用方式为频分复用，图13所示的复用方式为空分复用。假设K＝3，N＝6，即三个空间相关参数TCI1-TCI3映射至六个相同传输块TB1-TB6，则TCI1可以映射至TB1、TB4，TCI2映射至TB2、TB5，TCI3映射至TB3、TB6。对于图11所示的时分复用的复用方式，可以获得分集增益。对于图12所示的频分复用的复用方式，可以获得频域分集增益，特别是在多个频分复用的传输块在频域上的间距大于预设门限时。对于图13所示的空分复用的复用方式，可以更快的完成传输块的传输时延，还可以提高系统性能。
示例性的，如图11-图13所示，其中，图11的复用方式为时分复用，图12所示的复用方式为频分复用，图13所示的复用方式为空分复用。将传输块TB替换为资源R，假设K＝3，N＝6，即三个空间相关参数TCI1-TCI3映射至六个资源R1-R6，则TCI1可以映射至R1、R4，TCI2映射至R2、R5，TCI3映射至R3、R6。对于图11所示的时分复用的复用方式，可以获得分集增益。对于图12所示的频分复用的复用方式，可以获得频域分集增益，特别是在多个频分复用的资源在频域上的间距大于预设门限时。对于图13所示的空分复用的复用方式，可以更快的完成资源的传输时延，还可以提高系统性能。
需要说明的是，N不能被K整除时，每个空间相关参数映射的资源的数目可以不同。
示例性的，如图14所示，以复用方式为时分复用为例进行说明，假设K＝3，N＝7，即三个空间相关参数TCI1-TCI3映射至七个相同传输块TB1-TB7，则TCI1可以映射至TB1，TCI2映射至TB2，TCI3映射至TB4，TCI1再映射至TB5，以此类推，最终，TCI1可以映射至TB1、TB4、TB7，TCI2可以映射至TB2、TB5，TCI3可以映射至TB3、TB6。
示例性的，如图14所示，以复用方式为时分复用为例进行说明，将资源块TB替换为资源R，假设K＝3，N＝7，即三个空间相关参数TCI1-TCI3映射至七个资源R1-R7，则TCI1可以映射至R1，TCI2映射至R2，TCI3映射至R4，TCI1再映射至R5，以此类推，最终，TCI1可以映射至R1、R4、R7，TCI2可以映射至R2、R5，TCI3可以映射至R3、R6。
如果N个传输块采用至少两种复用方式，至少两种复用方式包括第一复用方式，N个传输块包括M组传输块，M为正整数，每组传输块中的传输块按照第一复用方式对应的顺序排列。
或者也可以说，N个传输块采用至少两种复用方式，至少两种复用方式包括第一复用方式，按照第一顺序排列的K个空间相关参数优先依次映射至每组传输块中按照第一复用方式对应的顺序排列的传输块，再在各组传输块之间映射。进一步地，按照第一顺序排列的K个空间相关参数优先依次映射至每组传输块中按照第一复用方式对应的顺序排列的传输块，再在各组传输块之间重复映射。
或者也可以说，N个传输块采用至少两种复用方式，至少两种复用方式包括第一复用方式，N个传输块按照第一复用方式划分为M组传输块，M为正整数，每组传输块中的传输块按照第一复用方式对应的顺序排列。
或者也可以说，N个传输块采用至少两种复用方式，至少两种复用方式包括第一复用方式，N个传输块按照第一复用方式划分为M组传输块，M为正整数，M组传输块中的每组传输块包括至少两个传输块，该至少两个传输块为第一复用方式复用的传输块，至少两个传输块按照第一复用方式对应的顺序排列。
或者也可以说，N个传输块采用至少两种复用方式，至少两种复用方式包括第一复用方式，N个传输块包括M组传输块，M为正整数，M组传输块中的至少一组传输块采用第一复用方式复用并按照第一复用方式对应的顺序排列。
进一步的，如果N个传输块采用两种复用方式，M组传输块之间按照第二复用方式对应的顺序排列。
其中，第一复用方式为空分复用，第二复用方式为时分复用或频分复用；或者，第一复用方式为时分复用，第二复用方式为频分复用；或者，第一复用方式为频分复用，第二复用方式为时分复用。
特别地，作为一种可能的实施方式，当终端设备具有单个激活的天线面板(panel)时，第一复用方式为时分复用，第二复用方式为频分复用；当终端设备具有多个激活的天线面板时，第一复用方式为频分复用，第二复用方式为时分复用。其中该终端设备激活的天线面板的个数可以是网络设备直接或间接指示的，还可以是终端设备显示、隐式、直接或间接上报的，还可以是终端设备按照终端设备能力上报的。
或者也可以说，第一复用方式为时分复用，第二复用方式为频分复用适用于当终端设备具有单个激活的天线面板(panel)的情况。第一复用方式为频分复用，第二复用方式为时分复用适用于当终端设备具有多个激活的天线面板的情况。
或者也可以说，第一复用方式为时分复用，第二复用方式为频分复用适用于当终端设备具有单个天线面板(panel)时的情况，可选地，该单个天线面板是激活的(active)。第一复用方式为频分复用，第二复用方式为时分复用适用于当终端设备具有多个天线 面板时的情况，可选地，该多个天线面板是激活的。
需要说明的是，对于第一复用方式为空分复用，第二复用方式为时分复用或频分复用；也可以理解为将K个空间相关参数优先映射至空分复用的传输块，该方法可以获得更好的空分复用效果。
需要说明的是，对于第一复用方式为时分复用，第二复用方式为频分复用；也可以理解为将K个空间相关参数优先映射至时分复用的传输块，该方法可以获得更好的时域分集效果。
需要说明的是，第一复用方式为频分复用，第二复用方式为时分复用；也可以理解为将K个空间相关参数优先映射至频分复用的传输块，该方法可以获得更好的频域分集效果，或者该方法可以避免频繁的波束切换。
示例性的，如图15和图16所示，其中，图15中第一复用方式为空分复用，第二复用方式为时分复用，每组传输块中的传输块按照空分复用的复用方式对应的顺序排列，M组传输块之间按照时分复用的复用方式对应的顺序排列。图16中第一复用方式为空分复用，第二复用方式为频分复用，每组传输块中的传输块按照空分复用的复用方式对应的顺序排列，M组传输块之间按照频分复用的复用方式对应的顺序排列。假设K＝2，N＝4，M＝2，即两个空间相关参数TCI1-TCI2映射至四个相同传输块TB1-TB4，则第一组传输块包括TB1和TB2，第二组传输块包括TB3和TB4，并且TB1与TB2空分复用，TB3与TB4空分复用，第一组传输块与第二组传输块之间时分复用。TCI1可以映射至TB1和TB3，TCI2可以映射至TB2和TB4。当第一复用方式采用空分复用时，可以获得更好的空分复用效果，也即将K个空间相关参数优先映射至空分复用的传输块可以获得更好的空分复用效果。
示例性的，如图15和图16所示，其中，图15中第一复用方式为空分复用，第二复用方式为时分复用，将传输块TB替换为资源R，每组资源中的资源按照空分复用的复用方式对应的顺序排列，M组资源之间按照时分复用的复用方式对应的顺序排列。图16中第一复用方式为空分复用，第二复用方式为频分复用，每组资源中的资源按照空分复用的复用方式对应的顺序排列，M组资源之间按照频分复用的复用方式对应的顺序排列。假设K＝2，N＝4，M＝2，即两个空间相关参数TCI1-TCI2映射至四个资源R1-R4，则第一组资源包括R1和R2，第二组资源包括R3和R4，并且R1与R2空分复用(例如，R1对应DMRS端口0，R2对应DMRS端口2；又如，R1对应DMRS CDM组0的中的全部或部分DMRS端口，R2对应DMRS CDM组10和11中的全部或部分DMRS端口)，R3与R4空分复用(例如，R1对应DMRS端口0，R2对应DMRS端口2；又如，R1对应DMRS CDM组0的中的全部或部分DMRS端口，R2对应DMRS CDM组10和11中的全部或部分DMRS端口)，第一组资源与第二组资源之间频分复用。TCI1可以映射至R1和R3，TCI2可以映射至R2和R4。当第一复用方式采用空分复用时，可以获得更好的空分复用效果，也即将K个空间相关参数优先映射至空分复用的资源可以获得更好的空分复用效果。
示例性的，如图17A、图17B和图18所示，其中，图17A和图17B中第一复用方式为时分复用，第二复用方式为频分复用，每组传输块中的传输块按照时分复用的复用方式对应的顺序排列，M组传输块之间按照频分复用的复用方式对应的顺序排列。 图18中第一复用方式为频分复用，第二复用方式为时分复用，每组传输块中的传输块按照频分复用的复用方式对应的顺序排列，M组传输块之间按照时分复用的复用方式对应的顺序排列。假设K＝2，N＝4，M＝2，即两个空间相关参数TCI1-TCI2映射至四个相同传输块TB1-TB4，则第一组传输块包括TB1和TB2，第二组传输块包括TB3和TB4。图17A和图17B中TB1与TB2时分复用，TB3与TB4时分复用，第一组传输块与第二组传输块之间频分复用；图18中TB1与TB2频分复用，TB3与TB4频分复用，第一组传输块与第二组传输块之间时分复用。TCI1可以映射至TB1和TB3，TCI2可以映射至TB2和TB4。图17A、图17B和图18中所示的传输方式相比于图7中完全采用时分复用的传输方式可以有效降低解码时延。
示例性的，如图17A、图17B和图18所示，其中，图17A和图17B中第一复用方式为时分复用，第二复用方式为频分复用，将传输块TB替换为资源R，每组资源中的资源按照时分复用的复用方式对应的顺序排列，M组资源之间按照频分复用的复用方式对应的顺序排列。图18中第一复用方式为频分复用，第二复用方式为时分复用，每组资源中的资源按照频分复用的复用方式对应的顺序排列，M组资源之间按照时分复用的复用方式对应的顺序排列。假设K＝2，N＝4，M＝2，即两个空间相关参数TCI1-TCI2映射至四个资源R1-R4，则第一组资源包括R1和R2，第二组资源包括R3和R4。图17A和图17B中R1与R2时分复用，R3与R4时分复用，第一组资源与第二组资源之间频分复用；图18中R1与R2频分复用，R3与R4频分复用，第一组资源与第二组资源之间时分复用。空间相关参数可以按照固定顺序映射至资源，如图17A和图18所示，TCI1可以映射至R1和R3，TCI2可以映射至R2和R4。或者，空间相关参数也可以前后按照相反顺序映射至资源，如图17B所示，TCI1可以映射至R1和R4，TCI2可以映射至R2和R3。图17A、图17B和图18中所示的传输方式相比于图7中完全采用时分复用的传输方式，可以有效降低解码时延。图17B所示的传输方式相比于图17A所示的传输方式，可以获得更好的鲁棒性。例如一个TB分别由两个传输点(transmission point，TRP)传输，TRP1在资源R1和R4上传输信息，TRP 2在R2和R4上传输信息，可以获得跳频增益。
如果N个传输块采用三种复用方式，各组传输块之间先按照第二复用方式对应的顺序排列后按照第三复用方式对应的顺序排列。
其中，第一复用方式为空分复用，第二复用方式为时分复用，第三复用方式为频分复用，或者，第一复用方式为空分复用，第二复用方式为频分复用，第三复用方式为时分复用。
特别地，作为一种可能的实施方式，当终端设备具有单个激活的天线面板(panel)时，第二复用方式为时分复用，第三复用方式为频分复用；当终端设备具有多个激活的天线面板时，第二复用方式为频分复用，第三复用方式为时分复用。其中该终端设备激活的天线面板的个数可以是网络设备直接或间接指示的，还可以是终端设备显示、隐式、直接或间接上报的，还可以是终端设备按照终端设备能力上报的。
或者也可以说，第二复用方式为时分复用，第三复用方式为频分复用适用于当终端设备具有单个激活的天线面板(panel)的情况。第二复用方式为频分复用，第三复用方式为时分复用适用于当终端设备具有多个激活的天线面板的情况。
或者也可以说，第二复用方式为时分复用，第三复用方式为频分复用适用于当终端设备具有单个天线面板(panel)时的情况，可选地，该单个天线面板是激活的(active)。第二复用方式为频分复用，第三复用方式为时分复用适用于当终端设备具有多个天线面板时的情况，可选地，该多个天线面板是激活的。
示例性的，如图19和图20所示，其中，图19中第一复用方式为空分复用，第二复用方式为时分复用，第三复用方式为频分复用，每组传输块中的传输块按照空分复用的复用方式对应的顺序排列，M组传输块之间先按照时分复用的复用方式对应的顺序排列后按照频分复用的复用方式对应的顺序排列。图20中第一复用方式为空分复用，第二复用方式为频分复用，第三复用方式为时分复用，每组传输块中的传输块按照空分复用的复用方式对应的顺序排列，M组传输块之间先按照频分复用的复用方式对应的顺序排列后按照时分复用的复用方式对应的顺序排列。假设K＝2，N＝8，M＝4，即两个空间相关参数TCI1-TCI2映射至八个相同传输块TB1-TB8，则第一组传输块包括TB1和TB2，第二组传输块包括TB3和TB4，第三组传输块包括TB5和TB6，第二组传输块包括TB7和TB8；并且TB1与TB2空分复用，TB3与TB4空分复用，TB4与TB5空分复用，TB6与TB7空分复用。图19中第一组传输块与第二组传输块之间时分复用，第三组传输块与第四组传输块之间时分复用，第一、二组传输块与第三、四组传输块之间频分复用；图20中第一组传输块与第二组传输块之间频分复用，第三组传输块与第四组传输块之间频分复用，第一、二组传输块与第三、四组传输块之间时分复用。TCI1可以映射至TB1、TB3、TB5、TB7，TCI2可以映射至TB2、TB4、TB6、TB8。
示例性的，如图19和图20所示，其中，图19中第一复用方式为空分复用，第二复用方式为时分复用，第三复用方式为频分复用，每组资源中的资源按照空分复用的复用方式对应的顺序排列，M组资源之间先按照时分复用的复用方式对应的顺序排列后按照频分复用的复用方式对应的顺序排列。图20中第一复用方式为空分复用，第二复用方式为频分复用，第三复用方式为时分复用，每组资源中的资源按照空分复用的复用方式对应的顺序排列，M组资源之间先按照频分复用的复用方式对应的顺序排列后按照时分复用的复用方式对应的顺序排列。将传输块替换为资源，假设K＝2，N＝8，M＝4，即两个空间相关参数TCI1-TCI2映射至八个资源R1-R8，则第一组资源包括R1和R2，第二组资源包括R3和R4，第三组资源包括R5和R6，第二组资源包括R7和TB8；并且R1与R2空分复用，R3与R4空分复用，R4与R5空分复用，R6与R7空分复用。图19中第一组资源与第二组资源之间时分复用，第三组资源与第四组资源之间时分复用，第一、二组资源与第三、四组资源之间频分复用；图20中第一组资源与第二组资源之间频分复用，第三组资源与第四组资源之间频分复用，第一、二组资源与第三、四组资源之间时分复用。TCI1可以映射至R1、R3、R5、R7，TCI2可以映射至R2、R4、R6、R8。
需要说明的是，对于N个传输块采用两种复用方式，终端设备可以根据第一复用方式和第二复用方式唯一确定N个传输块的顺序。对于N个传输块采用三种复用方式，终端设备可以根据第一复用方式、第二复用方式和第三复用方式唯一确定N个传输块的顺序。也即通过上述方法，终端设备可以确定N个传输块的顺序。
K个空间相关参数与N个传输块的映射关系可以是网络设备配置的，或者是协议预定义的，或者是终端设备根据至少两个传输块的频域或时域间距确定的。例如，当N个传输块中相邻传输块之间的频域或时域间距大于第一门限时，可以采用按照第一顺序排列的K个空间相关参数依次映射至N个传输块的方式或按照第一顺序排列的K个空间相关参数中的第i个空间相关参数映射至N个传输块中的第K*j+i个传输块的方式，该方式可以使得传输块之间频域或时域间距较大时获得更好的分集增益；当N个传输块中相邻传输块之间的频域或时域间距小于第一门限时，可以采用按照第一顺序排列的K个空间相关参数依次映射至按照一种复用方式对应的顺序排列的K组传输块的方式，该方式可以使得输块之间频域或时域间距较小时，避免频繁波束切换及过多的信道估计，从而降低终端设备的实现复杂度。
本申请实施例中，传输块的重复次数N可以通过一个或多个参数指示。
示例性的，在一种方式中，可以每种复用方式分别使用一个参数指示。例如时分复用的相同传输为N1个，频分复用的相同传输块为N2个，空分复用的相同传输块为N3个。或者，定义每种复用方式的传输块的重复次数，例如复用方式为时分复用的传输块的重复次数为N1次，复用方式为频分复用的传输块的重复次数为N2次，复用方式为空分复用的传输块的重复次数为N3次。
示例性的，在另一种方式中，可以直接指示传输块的重复次数的总数N，即不管有几种复用方式，仅指示传输块的重复次数的总数为N。
本申请实施例中，还可以结合传输块的冗余版本(redundancy version，RV)和/或调制与编码策略(modulation and coding scheme，MCS)的映射顺序确定K个空间相关参数与N个传输块的映射关系，或者，根据K个空间相关参数与N个传输块的映射关系确定传输块的RV和/或MCS的映射顺序。例如，相同RV的传输块使用相同的空间相关参数(例如TCI ID)。再例如，相同MCS的传输块使用相同的空间相关参数(例如TCI ID)。再例如：相同的空间相关参数(例如TCI ID)使用相同的MCS或RV。
需要说明的是，对于N个传输块只采用一种复用方式(例如时分复用)时，可以不强调复用方式，即可以直接确定K个空间相关参数与N个传输块的映射关系，实际上隐式地包含了根据N个传输块的复用方式确定K个空间相关参数与N个传输块的映射关系。
需要说明的是，本实施例中，不限定步骤S501与步骤S502的执行顺序。例如，可以先执行S501再执行S502，可以先执行S502再执行S501，还可以S501与S502同时执行。
S503、终端设备确定K个空间相关参数与N个传输块的映射关系。
具体可以参照步骤S502中的描述，在此不再重复。
需要说明的是，本实施例中，不限定步骤S501与步骤S503的执行顺序。例如，可以先执行S501再执行S503，还可以S501与S503同时执行。
S504、网络设备根据映射关系发送N个传输块。
对于N个传输块中的每个传输块，网络设备可以根据与该传输块有映射关系的空间相关参数发送该传输块。
S505、终端设备根据映射关系接收N个传输块。
对于N个传输块中的每个传输块，终端设备可以根据与该传输块有映射关系的空间相关参数接收该传输块。
S506、终端设备根据映射关系发送N个传输块。
S507、网络设备根据映射关系接收N个传输块。
需要说明的是，步骤S504-S505与S506-S507只执行其中一个。其中，步骤S504-S505是针对PDSCH而言，此时空间相关参数可以为TCI或QCL，步骤S506-S507是针对PUSCH而言，此时空间相关参数为空间关系信息(spatial relation info)。
需要说明的是，本实施例中，不限定步骤S502与步骤S504的执行顺序。例如，可以先执行S502再执行S504，还可以S502与S504同时执行。此外，步骤S502与S504还可以是同一个步骤，例如，网络设备根据K个空间相关参数与N个传输块的映射关系发送该N个传输块。
同样地，本实施例中，不限定步骤S503与步骤S505的执行顺序。例如，可以先执行S503再执行S505，还可以S503与S505同时执行。此外，步骤S503与S505还可以是同一个步骤，例如，终端设备根据K个空间相关参数与N个传输块的映射关系接收该N个传输块。
需要说明的是，本实施例中，不限定步骤S502与步骤S507的执行顺序。例如，可以先执行S502再执行S507，还可以S502与S507同时执行。此外，步骤S502与S507还可以是同一个步骤，例如，网络设备根据K个空间相关参数与N个传输块的映射关系接收该N个传输块。
同样地，本实施例中，不限定步骤S503与步骤S506的执行顺序。例如，可以先执行S503再执行S506，还可以S503与S506同时执行。此外，步骤S503与S506还可以是同一个步骤，终端设备根据K个空间相关参数与N个传输块的映射关系发送该N个传输块。
本申请实施例提供的通信方法，网络设备向终端设备发送第一指示信息，相应地，终端设备从网络设备接收第一指示信息，第一指示信息用于指示接收N个传输块的K个空间相关参数。网络设备和终端设备确定K个空间相关参数与N个传输块的映射关系。网络设备根据映射关系发送N个传输块，相应地，终端设备根据映射关系接收N个传输块。或者，终端设备根据映射关系发送N个传输块，相应地，网络设备根据映射关系接收N个传输块。实现了重复发送传输块时，网络设备和终端设备确定空间相关参数与传输块的映射关系，从而根据该映射关系获知根据哪个空间相关参数发送或接收哪个传输块。
可以理解的是，以上各个实施例中，由终端设备实现的方法和/或步骤，也可以由可用于终端设备的部件(例如芯片或者电路)实现，由网络设备实现的方法和/或步骤，也可以由可用于网络设备的部件实现。
上述主要从各个网元之间交互的角度对本申请实施例提供的方案进行了介绍。相应的，本申请实施例还提供了通信装置，该通信装置用于实现上述各种方法。该通信装置可以为上述方法实施例中的终端设备，或者包含上述终端设备的装置，或者为可用于终端设备的部件；或者，该通信装置可以为上述方法实施例中的网络设备，或者 包含上述网络设备的装置，或者为可用于网络设备的部件。可以理解的是，该通信装置为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法实施例中对通信装置进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。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。需要说明的是，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。
比如，以通信装置为上述方法实施例中的终端设备为例。图21示出了一种终端设备210的结构示意图。该终端设备210包括处理模块2101和收发模块2102。收发模块2102，也可以称为收发单元用以实现发送和/或接收功能，例如可以是收发电路，收发机，收发器或者通信接口。
收发模块2102，用于接收第一指示信息，其中，第一指示信息用于指示接收N个传输块的K个空间相关参数，其中，N个传输块是相同的传输块，K和N为大于1的整数，并且K≤N；处理模块2101，用于确定K个空间相关参数与N个传输块的映射关系；收发模块2102，还用于根据映射关系接收N个传输块。
可选的，处理模块2101具体用于：根据N个传输块的复用方式确定K个空间相关参数与N个传输块的映射关系，其中，复用方式包括空分复用、时分复用、频分复用中的至少一种。
可选的，N个传输块采用一种复用方式，N个传输块包括K组传输块；K个空间相关参数与N个传输块的映射关系，包括：按照第一顺序排列的K个空间相关参数依次映射至按照一种复用方式对应的顺序排列的K组传输块。
可选的，K个空间相关参数与N个传输块的映射关系，包括：按照第一顺序排列的K个空间相关参数依次映射至N个传输块。
可选的，K个空间相关参数与N个传输块的映射关系，包括：按照第一顺序排列的K个空间相关参数中的第i个空间相关参数映射至N个传输块中的第K*j+i个传输块，其中，i和j为整数，且1≤i≤K，1≤K*j+i≤N，
Figure PCTCN2020079607-appb-000027
Figure PCTCN2020079607-appb-000028
表示向上取整。
可选的，N个传输块采用一种复用方式，N个传输块按照一种复用方式对应的顺序排列。
可选的，N个传输块采用至少两种复用方式，至少两种复用方式包括第一复用方式，N个传输块包括M组传输块，M为正整数，每组传输块中的传输块按照第一复用方式对应的顺序排列。
可选的，N个传输块采用两种复用方式，M组传输块之间按照第二复用方式对应的顺序排列。
可选的，第一复用方式为空分复用，第二复用方式为时分复用或频分复用；或者，第一复用方式为时分复用，第二复用方式为频分复用；或者，第一复用方式为频分复用，第二复用方式为时分复用。
可选的，N个传输块采用三种复用方式，各组传输块之间先按照第二复用方式对应的顺序排列后按照第三复用方式对应的顺序排列。
可选的，第一复用方式为空分复用，第二复用方式为时分复用，第三复用方式为频分复用，或者，第一复用方式为空分复用，第二复用方式为频分复用，第三复用方式为时分复用。
可选的，第一顺序为：空间相关参数的标识从小到大的顺序，或者空间相关参数的标识从大到小的顺序，或者第一指示信息指示的K个空间相关参数的先后顺序。
可选的，空分复用的复用方式对应的顺序为：解调参考信号端口的索引从小到大的顺序，或者，解调参考信号端口的索引从大到小的顺序，或者解调参考信号端口组的索引从小到大的顺序，或者解调参考信号端口组的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口组的索引从小到大的顺序，或者，天线端口字域指示的解调参考信号端口组的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口的索引从小到大的顺序，或者，天线端口字域指示的解调参考信号端口的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口组的索引的顺序，或者，天线端口字域指示的解调参考信号端口的索引的顺序；每个或每几个解调参考信号端口或解调参考信号端口组用于解调N个传输块中的一个传输块。
空分复用的复用方式对应的顺序为：解调参考信号端口的索引从小到大的顺序，或者，解调参考信号端口的索引从大到小的顺序，或者解调参考信号端口组的索引从小到大的顺序，或者解调参考信号端口组的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口组的索引从小到大的顺序，或者，天线端口字域指示的解调参考信号端口组的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口的索引从小到大的顺序，或者，天线端口字域指示的解调参考信号端口的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口组的索引的顺序，或者，天线端口字域指示的解调参考信号端口的索引的顺序；每个或每几个解调参考信号端口、解调参考信号端口组对应N个资源中的一个资源。
可选的，时分复用的复用方式对应的顺序为：时域资源的索引从小到大的顺序，或者，时域资源的索引从大到小的顺序，每个时域资源用于承载N个传输块中的一个传输块。
可选的，频分复用的复用方式对应的顺序为：频域资源的索引从小到大的顺序，或者，频域资源的索引从大到小的顺序，其中，每个频域资源用于承载N个传输块中的一个传输块。
可选的，空间相关参数为空间相关信息或传输配置指示TCI信息。
可选的，N个传输块采用时分复用和频分复用的复用方式，N个传输块包括M组传输块；K个空间相关参数与N个传输块的映射关系，包括：按照第一顺序排列的K个空间相关参数中的第i个空间相关参数映射至M组传输块中的第K*j+i组传输块，其中，i和j为整数，且1≤i≤K，1≤K*j+i≤M，
Figure PCTCN2020079607-appb-000029
Figure PCTCN2020079607-appb-000030
表示向上取整。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述或前述方法侧描述，在此不再赘述。
在本实施例中，该终端设备210以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以指特定ASIC，电路，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。在一个简单的实施例中，本领域的技术人员可以想到该终端设备210可以采用图2所示的终端设备105的形式。
比如，图2所示的终端设备105中的处理器180可以通过调用存储器120中存储的计算机执行指令，使得终端设备105执行上述方法实施例中的通信方法。
具体的，图21中的处理模块2101和收发模块2102的功能/实现过程可以通过图2所示的终端设备105中的处理器180调用存储器120中存储的计算机执行指令来实现。或者，图21中的处理模块2101的功能/实现过程可以通过图2所示的终端设备105中的处理器180调用存储器120中存储的计算机执行指令来实现，图21中的收发模块2102的功能/实现过程可以通过图2中所示的终端设备105中的RF电路110来实现。
由于本实施例提供的终端设备105可执行上述通信方法，因此其所能获得的技术效果可参考上述方法实施例，在此不再赘述。
或者，比如，以通信装置为上述方法实施例中的网络设备为例。图22示出了一种网络设备220的结构示意图。该网络设备220包括处理模块2201和收发模块2202。收发模块2202，也可以称为收发单元用以实现发送和/或接收功能，例如可以是收发电路，收发机，收发器或者通信接口。
收发模块2202，用于发送第一指示信息，其中，第一指示信息用于指示接收N个传输块的K个空间相关参数，其中，N个传输块是相同的传输块，K和N为大于1的整数，并且K≤N；处理模块2201，用于确定K个空间相关参数与N个传输块的映射关系；收发模块2202，还用于根据映射关系发送N个传输块。
可选的，处理模块2201具体用于：根据N个传输块的复用方式确定K个空间相关参数与N个传输块的映射关系，其中，复用方式包括空分复用、时分复用、频分复用中的至少一种。
可选的，N个传输块采用一种复用方式，N个传输块包括K组传输块；K个空间相关参数与N个传输块的映射关系，包括：按照第一顺序排列的K个空间相关参数依次映射至按照一种复用方式对应的顺序排列的K组传输块。
可选的，K个空间相关参数与N个传输块的映射关系，包括：按照第一顺序排列的K个空间相关参数依次映射至N个传输块。
可选的，K个空间相关参数与N个传输块的映射关系，包括：按照第一顺序排列的K个空间相关参数中的第i个空间相关参数映射至N个传输块中的第K*j+i个传输块，其中，i和j为整数，且1≤i≤K，1≤K*j+i≤N，
Figure PCTCN2020079607-appb-000031
Figure PCTCN2020079607-appb-000032
表示向上取整。
可选的，N个传输块采用一种复用方式，N个传输块按照一种复用方式对应的顺序排列。
可选的，N个传输块采用至少两种复用方式，至少两种复用方式包括第一复用方 式，N个传输块包括M组传输块，M为正整数，每组传输块中的传输块按照第一复用方式对应的顺序排列。
可选的，N个传输块采用两种复用方式，M组传输块之间按照第二复用方式对应的顺序排列。
可选的，第一复用方式为空分复用，第二复用方式为时分复用或频分复用；或者，第一复用方式为时分复用，第二复用方式为频分复用；或者，第一复用方式为频分复用，第二复用方式为时分复用。
可选的，N个传输块采用三种复用方式，各组传输块之间先按照第二复用方式对应的顺序排列后按照第三复用方式对应的顺序排列。
可选的，第一复用方式为空分复用，第二复用方式为时分复用，第三复用方式为频分复用，或者，第一复用方式为空分复用，第二复用方式为频分复用，第三复用方式为时分复用。
可选的，第一顺序为：空间相关参数的标识从小到大的顺序，或者空间相关参数的标识从大到小的顺序，或者第一指示信息指示的K个空间相关参数的先后顺序。
可选的，空分复用的复用方式对应的顺序为：解调参考信号端口的索引从小到大的顺序，或者，解调参考信号端口的索引从大到小的顺序，或者解调参考信号端口组的索引从小到大的顺序，或者解调参考信号端口组的索引从大到小的顺序；每个或每几个解调参考信号端口或解调参考信号端口组用于解调N个传输块中的一个传输块或者，天线端口字域指示的解调参考信号端口组的索引从小到大的顺序，或者，天线端口字域指示的解调参考信号端口组的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口的索引从小到大的顺序，或者，天线端口字域指示的解调参考信号端口的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口组的索引的顺序，或者，天线端口字域指示的解调参考信号端口的索引的顺序；每个或每几个解调参考信号端口、解调参考信号端口组对应N个资源中的一个资源。
可选的，时分复用的复用方式对应的顺序为：时域资源的索引从小到大的顺序，或者，时域资源的索引从大到小的顺序，每个时域资源用于承载N个传输块中的一个传输块。
可选的，频分复用的复用方式对应的顺序为：频域资源的索引从小到大的顺序，或者，频域资源的索引从大到小的顺序，其中，每个频域资源用于承载N个传输块中的一个传输块。
可选的，空间相关参数为空间相关信息或传输配置指示TCI信息。
可选的，N个传输块采用时分复用和频分复用的复用方式，N个传输块包括M组传输块；K个空间相关参数与N个传输块的映射关系，包括：按照第一顺序排列的K个空间相关参数中的第i个空间相关参数映射至M组传输块中的第K*j+i组传输块，其中，i和j为整数，且1≤i≤K，1≤K*j+i≤M，
Figure PCTCN2020079607-appb-000033
Figure PCTCN2020079607-appb-000034
表示向上取整。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述或前述方法侧描述，在此不再赘述。
在本实施例中，该网络设备220以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以指特定ASIC，电路，执行一个或多个软件或固件程序的处理 器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。在一个简单的实施例中，本领域的技术人员可以想到该网络设备220可以采用图3所示的网络设备300的形式。
比如，图3所示的网络设备300中的处理器301可以通过调用存储器302中存储的计算机执行指令，使得网络设备300执行上述方法实施例中的通信方法。
具体的，图22中的处理模块2201和收发模块2202的功能/实现过程可以通过图3所示的网络设备300中的处理器301调用存储器302中存储的计算机执行指令来实现。或者，图22中的处理模块2201的功能/实现过程可以通过图3所示的网络设备300中的处理器301调用存储器302中存储的计算机执行指令来实现，图22中的收发模块2202的功能/实现过程可以通过图3中所示的网络设备300中的通信接口303来实现。
由于本实施例提供的网络设备220可执行上述通信方法，因此其所能获得的技术效果可参考上述方法实施例，在此不再赘述。
本申请实施例还提供一种通信装置，包括：处理器和存储器，所述存储器用于存储程序，所述处理器调用存储器存储的程序，以使通信装置执行图5中的终端设备的通信方法。
本申请实施例还提供一种通信装置，包括：处理器和存储器，所述存储器用于存储程序，所述处理器调用存储器存储的程序，以使通信装置执行图5中的网络设备的通信方法。
本申请实施例还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指令，当该指令在计算机或处理器上运行时，使得计算机或处理器执行图5中终端设备或网络设备的通信方法。
本申请实施例还提供了一种包含指令的计算机程序产品，当指令在计算机或处理器上运行时，使得计算机或处理器执行图5中的终端设备或网络设备的通信方法。
本申请实施例提供了一种芯片系统，该芯片系统包括处理器，用于通信装置执行图5中的终端设备的通信方法。例如，接收第一指示信息，其中，第一指示信息用于指示接收N个传输块的K个空间相关参数，其中，N个传输块是相同的传输块，K和N为大于1的整数，并且K≤N；确定K个空间相关参数与N个传输块的映射关系；根据映射关系接收N个传输块。
在一种可能的设计中，该芯片系统还包括存储器，该存储器，用于保存终端设备必要的程序指令和数据。该芯片系统，可以包括芯片，集成电路，也可以包含芯片和其他分立器件，本申请实施例对此不作具体限定。
本申请实施例提供了一种芯片系统，该芯片系统包括处理器，用于通信装置执行图5中的网络设备的通信方法。例如，发送第一指示信息，其中，第一指示信息用于指示接收N个传输块的K个空间相关参数，其中，N个传输块是相同的传输块，K和N为大于1的整数，并且K≤N；确定K个空间相关参数与N个传输块的映射关系；根据映射关系发送N个传输块。
在一种可能的设计中，该芯片系统还包括存储器，该存储器，用于保存网络设备必要的程序指令和数据。该芯片系统，可以包括芯片，集成电路，也可以包含芯片和其他分立器件，本申请实施例对此不作具体限定。
其中，本申请提供的通信装置、计算机存储介质、计算机程序产品或芯片系统均用于执行上文的通信方法，因此，其所能达到的有益效果可参考上文所提供的实施方式中的有益效果，此处不再赘述。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、设备和方法，可以通过其它的方式实现。例如，以上所描述的设备实施例仅仅是示意性的，例如，所述单元的划分，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，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件程序实现时，可以全部或部分地以计算机程序产品的形式来实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或者数据中心通过有线(例如同轴电缆、光纤、数字用户线(Digital Subscriber Line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可以用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)，光介质(例如，DVD)、或者半导体介质(例如固态硬盘(Solid State Disk，SSD))等。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任 何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (24)

  1. 一种通信方法，其特征在于，包括：
    接收第一指示信息，其中，所述第一指示信息用于指示接收承载在N个资源上的传输块的K个空间相关参数，其中，K和N为大于1的整数，并且K≤N；
    确定所述K个空间相关参数与所述N个资源的映射关系；
    根据所述映射关系接收所述N个资源上的传输块。
  2. 根据权利要求1所述的方法，其特征在于，所述确定所述K个空间相关参数与所述N个资源的映射关系包括：
    根据所述N个资源的复用方式确定所述K个空间相关参数与所述N个资源的映射关系，其中，所述复用方式包括空分复用、时分复用、频分复用中的至少一种。
  3. 一种通信方法，其特征在于，包括：
    发送第一指示信息，其中，所述第一指示信息用于指示接收承载在N个资源上的传输块的K个空间相关参数，其中，K和N为大于1的整数，并且K≤N；
    确定所述K个空间相关参数与所述N个资源的映射关系；
    根据所述映射关系在所述N个资源上发送所述传输块。
  4. 根据权利要求3所述的方法，其特征在于，所述确定所述K个空间相关参数与所述N个资源的映射关系包括：
    根据所述N个资源的复用方式确定所述K个空间相关参数与所述N个资源的映射关系，其中，所述复用方式包括空分复用、时分复用、频分复用中的至少一种。
  5. 一种终端设备，其特征在于，包括：处理模块和收发模块；
    所述收发模块，用于接收第一指示信息，其中，所述第一指示信息用于指示接收承载在N个资源上的传输块的K个空间相关参数，其中，K和N为大于1的整数，并且K≤N；
    所述处理模块，用于确定所述K个空间相关参数与所述N个资源的映射关系；
    所述收发模块，还用于根据所述映射关系接收所述N个资源上的所述传输块。
  6. 根据权利要求5所述的终端设备，其特征在于，所述处理模块具体用于：
    根据所述N个资源的复用方式确定所述K个空间相关参数与所述N个资源的映射关系，其中，所述复用方式包括空分复用、时分复用、频分复用中的至少一种。
  7. 一种网络设备，其特征在于，包括：处理模块和收发模块；
    所述收发模块，用于发送第一指示信息，其中，所述第一指示信息用于指示接收承载在N个资源上的传输块的K个空间相关参数，其中，K和N为大于1的整数，并且K≤N；
    所述处理模块，用于确定所述K个空间相关参数与所述N个资源的映射关系；
    所述收发模块，还用于根据所述映射关系在所述N个资源上发送所述传输块。
  8. 根据权利要求7所述的网络设备，其特征在于，所述处理模块具体用于：
    根据所述N个资源的复用方式确定所述K个空间相关参数与所述N个资源的映射关系，其中，所述复用方式包括空分复用、时分复用、频分复用中的至少一种。
  9. 根据权利要求2、4、6、8任一项所述的方法或终端设备或网络设备，其特征在于，所述N个资源采用一种复用方式，所述N个资源包括K组资源；所述K个空 间相关参数与所述N个资源的映射关系，包括：
    按照第一顺序排列的所述K个空间相关参数依次映射至按照所述一种复用方式对应的顺序排列的K组资源。
  10. 根据权利要求1-8任一项所述的方法或终端设备或网络设备，其特征在于，所述K个空间相关参数与所述N个资源的映射关系，包括：
    按照第一顺序排列的所述K个空间相关参数依次映射至所述N个资源。
  11. 根据权利要求1-8任一项所述的方法或终端设备或网络设备，其特征在于，所述K个空间相关参数与所述N个资源的映射关系，包括：
    按照第一顺序排列的所述K个空间相关参数中的第i个空间相关参数映射至所述N个资源中的第K*j+i个资源，其中，i和j为整数，且1≤i≤K，1≤K*j+i≤N，
    Figure PCTCN2020079607-appb-100001
    Figure PCTCN2020079607-appb-100002
    Figure PCTCN2020079607-appb-100003
    表示向上取整。
  12. 根据权利要求10-11任一项所述的方法或终端设备或网络设备，其特征在于，所述N个资源采用一种复用方式，所述N个资源按照所述一种复用方式对应的顺序排列。
  13. 根据权利要求10-11任一项所述的方法或终端设备或网络设备，其特征在于，所述N个资源采用至少两种复用方式，所述至少两种复用方式包括第一复用方式，所述N个资源包括M组资源，M为正整数，每组资源中的资源按照所述第一复用方式对应的顺序排列。
  14. 根据权利要求13所述的方法或终端设备或网络设备，其特征在于，所述N个资源采用两种复用方式，所述M组资源之间按照第二复用方式对应的顺序排列。
  15. 根据权利要求14所述的方法或终端设备或网络设备，其特征在于，
    所述第一复用方式为空分复用，所述第二复用方式为时分复用或频分复用；或者，
    所述第一复用方式为时分复用，所述第二复用方式为频分复用；或者，
    所述第一复用方式为频分复用，所述第二复用方式为时分复用。
  16. 根据权利要求13所述的方法或终端设备或网络设备，其特征在于，所述N个资源采用三种复用方式，各组资源之间先按照第二复用方式对应的顺序排列后按照第三复用方式对应的顺序排列。
  17. 根据权利要求16所述的方法或终端设备或网络设备，其特征在于，
    所述第一复用方式为空分复用，所述第二复用方式为时分复用，所述第三复用方式为频分复用，或者，
    所述第一复用方式为空分复用，所述第二复用方式为频分复用，所述第三复用方式为时分复用。
  18. 根据权利要求9-17任一项所述的方法或终端设备或网络设备，其特征在于，所述第一顺序为：空间相关参数的标识从小到大的顺序，或者空间相关参数的标识从大到小的顺序，或者所述第一指示信息指示的所述K个空间相关参数的先后顺序。
  19. 根据权利要求9-18任一项所述的方法或终端设备或网络设备，其特征在于，空分复用的复用方式对应的顺序为：解调参考信号端口的索引从小到大的顺序，或者，解调参考信号端口的索引从大到小的顺序，或者解调参考信号端口组的索引从小到大的顺序，或者解调参考信号端口组的索引从大到小的顺序，或者，天线端口字域指示 的解调参考信号端口组的索引从小到大的顺序，或者，天线端口字域指示的解调参考信号端口组的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口的索引从小到大的顺序，或者，天线端口字域指示的解调参考信号端口的索引从大到小的顺序，或者，天线端口字域指示的解调参考信号端口组的索引的顺序，或者，天线端口字域指示的解调参考信号端口的索引的顺序；
    每个或每几个解调参考信号端口、解调参考信号端口组对应所述N个资源中的一个资源。
  20. 根据权利要求9-19任一项所述的方法或终端设备或网络设备，其特征在于，时分复用的复用方式对应的顺序为：时域资源的索引从小到大的顺序，或者，时域资源的索引从大到小的顺序，每个时域资源对应所述N个资源中的一个资源。
  21. 根据权利要求9-20任一项所述的方法或终端设备或网络设备，其特征在于，频分复用的复用方式对应的顺序为：频域资源的索引从小到大的顺序，或者，频域资源的索引从大到小的顺序，其中，每个频域资源对应所述N个资源中的一个资源。
  22. 根据权利要求1-20任一项所述的方法或终端设备或网络设备，其特征在于，所述空间相关参数为空间相关信息或传输配置指示TCI信息。
  23. 根据权利要求13-17任一项所述的方法或终端设备或网络设备，其特征在于，按照第一顺序排列的所述K个空间相关参数依次映射至每组资源中按照所述第一复用方式对应的顺序排列的资源，再在各组资源之间重复映射。
  24. 一种计算机可读存储介质，用于存储指令，当所述指令被计算机执行时，使得所述计算机执行如权利要求1-4任一项所述的方法，或执行如权利要求9-23任一项中所述的方法。
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