WO2024065443A1 - 基于码本的上行信道发送方法及装置 - Google Patents

基于码本的上行信道发送方法及装置 Download PDF

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Publication number
WO2024065443A1
WO2024065443A1 PCT/CN2022/122777 CN2022122777W WO2024065443A1 WO 2024065443 A1 WO2024065443 A1 WO 2024065443A1 CN 2022122777 W CN2022122777 W CN 2022122777W WO 2024065443 A1 WO2024065443 A1 WO 2024065443A1
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Prior art keywords
codebook
antenna ports
uplink channel
codeword
codewords
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PCT/CN2022/122777
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English (en)
French (fr)
Inventor
张振宇
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北京小米移动软件有限公司
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Priority to PCT/CN2022/122777 priority Critical patent/WO2024065443A1/zh
Publication of WO2024065443A1 publication Critical patent/WO2024065443A1/zh

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    • 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
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a codebook-based uplink channel sending method and device.
  • the codebook-based uplink channel transmission method is a spatial multiplexing transmission method that determines the uplink channel precoding based on a fixed codebook. It is a commonly used transmission method.
  • An embodiment of the first aspect of the present disclosure proposes a codebook-based uplink channel sending method, which is executed by a terminal device, and includes: determining a codebook that matches the number of antenna ports for sending an uplink channel by the terminal device, the uplink channel has multiple antenna ports, and the multiple antenna ports have the same polarization direction; using codewords in the codebook to precode the uplink channel; and sending the precoded uplink data channel to a network device.
  • the codebook includes at least one of the following: a codeword set for full coherent transmission; a codeword set for partial coherent transmission; and a codeword set for incoherent transmission.
  • the method also includes: determining dimensional information and an oversampling factor of the multiple antenna ports; and generating a set of codewords for the fully coherent transmission based on a DFT (Discrete Fourier Transform) beam vector according to the dimensional information and the oversampling factor.
  • DFT Discrete Fourier Transform
  • the method of generating a set of codewords for full coherent transmission based on the DFT beam vector according to the dimensional information and the oversampling factor includes: determining first indication information and second indication information, wherein the first indication information and the second indication information are used to indicate the DFT beam corresponding to the first layer codeword; determining third indication information, wherein the third indication information is used to indicate the offset of the beam index of other layer codewords under the dimensional information relative to the beam index of the first layer codeword; determining the DFT beam corresponding to the other layer codeword according to the third indication information; and determining the set of codewords for full coherent transmission according to the first layer codeword and/or other layer codewords.
  • each type of dimensional information of at least one type of dimensional information of the multiple antenna ports supports multiple groups of oversampling factors.
  • the method also includes: dividing the multiple antenna ports into multiple antenna port groups; determining the codeword set for the partially coherent transmission based on the number of antenna ports in each antenna port group and the antenna correlation between the multiple antenna port groups.
  • the method further includes: determining a codeword set for the non-coherent transmission based on an antenna selection vector corresponding to the number of antenna ports.
  • An embodiment of the second aspect of the present disclosure proposes a codebook-based uplink channel sending method, which is executed by a network device, and includes: receiving an uplink data channel sent by a terminal device after precoding processing with codewords in a codebook; the codebook is a codebook that matches the number of antenna ports for sending an uplink channel by the terminal device, the uplink channel has multiple antenna ports, and the multiple antenna ports have the same polarization direction.
  • the codebook includes at least one of the following: a codeword set for full coherent transmission; a codeword set for partial coherent transmission; and a codeword set for incoherent transmission.
  • the codeword set for the fully coherent transmission is generated based on the DFT beam vector according to the dimensional information and oversampling factors of the multiple antenna ports.
  • the codeword set for fully coherent transmission is determined based on the first layer codewords and/or other layer codewords; the first layer codewords are determined based on first indication information and second indication information, and the first indication information and the second indication information are used to indicate the DFT beam corresponding to the first layer codewords; the DFT beam corresponding to the other layer codewords is determined based on third indication information, and the third indication information is used to indicate the offset of the beam index of the other layer codewords under the dimension information relative to the beam index of the first layer codeword.
  • each type of dimensional information of at least one type of dimensional information of the multiple antenna ports supports multiple groups of oversampling factors.
  • the codeword set for partially coherent transmission is determined based on the number of antenna ports in each antenna port group among the multiple antenna port groups into which the multiple antenna ports are divided, and antenna correlation between the multiple antenna port groups.
  • the codeword set for the non-coherent transmission is determined based on an antenna selection vector corresponding to the number of antenna ports.
  • An embodiment of the third aspect of the present disclosure proposes a codebook-based uplink channel sending device, which is applied to a terminal device, and includes: a processing unit, used to determine a codebook that matches the number of antenna ports for sending an uplink channel by the terminal device, the uplink channel has multiple antenna ports, and the multiple antenna ports have the same polarization direction; the processing unit is also used to use the codewords in the codebook to precode the uplink channel; and a transceiver unit is used to send the uplink data channel after precoding to a network device.
  • the codebook includes at least one of the following: a codeword set for full coherent transmission; a codeword set for partial coherent transmission; and a codeword set for incoherent transmission.
  • the processing unit is also used to determine the dimension information and oversampling factors of the multiple antenna ports; and generate the codeword set for the fully coherent transmission based on the DFT beam vector according to the dimension information and the oversampling factor.
  • the processing unit is also used to determine first indication information and second indication information, wherein the first indication information and the second indication information are used to indicate the DFT beam corresponding to the first layer codeword; determine third indication information, wherein the third indication information is used to indicate the offset of the beam index of other layer codewords under the dimension information relative to the beam index of the first layer codeword; determine the DFT beam corresponding to the other layer codeword according to the third indication information; and determine the codeword set for the fully coherent transmission according to the first layer codeword and/or other layer codewords.
  • each type of dimensional information of at least one type of dimensional information of the multiple antenna ports supports multiple groups of oversampling factors.
  • the processing unit is further used to divide the multiple antenna ports into multiple antenna port groups; determine the codeword set for the partially coherent transmission according to the number of antenna ports in each antenna port group and the antenna correlation between the multiple antenna port groups.
  • the processing unit is further used to determine the codeword set for the non-coherent transmission according to an antenna selection vector corresponding to the number of antenna ports.
  • the fourth aspect embodiment of the present disclosure proposes a codebook-based uplink channel sending device, which is applied to a network device, and the device includes: a transceiver unit, which is used to receive an uplink data channel sent by a terminal device after precoding processing with codewords in a codebook; the codebook is a codebook that matches the number of antenna ports for sending an uplink channel by the terminal device, and the uplink channel has multiple antenna ports, and the polarization directions of the multiple antenna ports are the same.
  • the codebook includes at least one of the following: a codeword set for full coherent transmission; a codeword set for partial coherent transmission; and a codeword set for incoherent transmission.
  • the codeword set for fully coherent transmission is generated based on the DFT beam vector according to the dimensional information and oversampling factor of the multiple antenna ports.
  • the codeword set for fully coherent transmission is determined based on the first layer codewords and/or other layer codewords; the first layer codewords are determined based on first indication information and second indication information, and the first indication information and the second indication information are used to indicate the DFT beam corresponding to the first layer codewords; the DFT beam corresponding to the other layer codewords is determined based on third indication information, and the third indication information is used to indicate the offset of the beam index of the other layer codewords under the dimension information relative to the beam index of the first layer codeword.
  • each type of dimensional information of at least one type of dimensional information of the multiple antenna ports supports multiple groups of oversampling factors.
  • the codeword set for partially coherent transmission is determined based on the number of antenna ports in each antenna port group among the multiple antenna port groups into which the multiple antenna ports are divided, and antenna correlation between the multiple antenna port groups.
  • the codeword set for the non-coherent transmission is determined based on an antenna selection vector corresponding to the number of antenna ports.
  • a fifth aspect embodiment of the present disclosure provides a communication device, the device comprising a processor and a memory, the memory storing a computer program, the processor executing the computer program stored in the memory so that the device executes the codebook-based uplink channel sending method described in the first aspect embodiment, or executes the codebook-based uplink channel sending method described in the second aspect embodiment.
  • a sixth aspect embodiment of the present disclosure provides another communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the codebook-based uplink channel sending method described in the first aspect embodiment, or to execute the codebook-based uplink channel sending method described in the second aspect embodiment.
  • the seventh aspect embodiment of the present disclosure provides a computer-readable storage medium for storing instructions. When the instructions are executed, the codebook-based uplink channel sending method described in the first aspect embodiment is implemented, or the codebook-based uplink channel sending method described in the second aspect embodiment is implemented.
  • An eighth aspect embodiment of the present disclosure provides a communication system, comprising: a terminal device, used to execute the codebook-based uplink channel sending method described in the first aspect embodiment, and a network device, used to execute the codebook-based uplink channel sending method described in the second aspect embodiment.
  • a ninth aspect embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the codebook-based uplink channel sending method described in the first aspect embodiment, or execute the codebook-based uplink channel sending method described in the second aspect embodiment.
  • the embodiments of the present disclosure provide a method and device for sending an uplink channel based on a codebook.
  • the method and device determine a codebook that matches the number of antenna ports for sending an uplink channel by a terminal device.
  • the uplink channel has multiple antenna ports, and the polarization directions of the multiple antenna ports are the same.
  • the uplink channel is precoded using codewords in the codebook.
  • the uplink data channel after the precoding is sent to a network device.
  • a codebook that matches the number of antenna ports for sending an uplink channel by the terminal device can be determined, and the uplink data channel after the precoding using the codewords in the codebook is sent to the network device.
  • Uplink transmission based on the codebook can realize spatial multiplexing of uplink channel precoding, effectively improve the uplink channel transmission rate, and thus improve communication efficiency.
  • FIG1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure.
  • FIG2 is a schematic diagram of a flow chart of a codebook-based uplink channel sending method provided in an embodiment of the present disclosure
  • FIG. 3 is a flow chart of another codebook-based uplink channel sending method provided in an embodiment of the present disclosure.
  • FIG4( a ) is a schematic diagram of an antenna arrangement of a terminal device provided in an embodiment of the present disclosure
  • FIG4( b ) is a schematic diagram of another antenna arrangement of a terminal device provided in an embodiment of the present disclosure.
  • FIG5 is a schematic diagram of a flow chart of another codebook-based uplink channel sending method provided in an embodiment of the present disclosure
  • FIG6 is a schematic flow chart of another codebook-based uplink channel sending method provided in an embodiment of the present disclosure.
  • FIG7 is a schematic flow chart of another codebook-based uplink channel sending method provided in an embodiment of the present disclosure.
  • FIG8 is a schematic flow chart of another codebook-based uplink channel sending method provided in an embodiment of the present disclosure.
  • FIG9 is a schematic structural diagram of a codebook-based uplink channel sending device provided in an embodiment of the present disclosure.
  • FIG10 is a schematic structural diagram of an uplink channel sending device based on a codebook according to an embodiment of the present disclosure
  • FIG11 is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure.
  • FIG. 12 is a schematic diagram of the structure of a chip provided in an embodiment of the present disclosure.
  • first, second, third, etc. may be used to describe various information in the disclosed embodiments, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
  • the words "if” and “if” as used herein may be interpreted as “at” or "when” or "in response to determination".
  • FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure.
  • the communication system may include, but is not limited to, a network device and a terminal device.
  • the number and form of devices shown in FIG. 1 are only used as examples and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more network devices and two or more terminal devices may be included.
  • the communication system shown in FIG. 1 includes, for example, a network device 101 and a terminal device 102.
  • LTE Long Term Evolution
  • 5G new air interface system 5G new air interface system
  • other future new mobile communication systems 5G new air interface system
  • the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure.
  • a person skilled in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.
  • the network device 101 in the embodiment of the present disclosure is an entity on the network side for transmitting or receiving signals.
  • the network device 101 may be an evolved NodeB (eNB), a transmission point (TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system.
  • eNB evolved NodeB
  • TRP transmission point
  • gNB next generation NodeB
  • WiFi wireless fidelity
  • the embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the network device.
  • the network device provided in the embodiment of the present disclosure may be composed of a centralized unit (CU) and a distributed unit (DU), wherein the CU may also be referred to as a control unit (Control Unit).
  • CU centralized unit
  • DU distributed unit
  • Control Unit Control Unit
  • the CU-DU structure may be used to split the protocol layer of a network device, such as a base station, and the functions of some protocol layers are placed in the CU for centralized control, and the functions of the remaining part or all of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.
  • a network device such as a base station
  • the terminal device 102 in the disclosed embodiment is an entity on the user side for receiving or transmitting signals, such as a mobile phone.
  • the terminal device may also be referred to as a terminal device (Terminal), a user equipment (UE), a mobile station (MS), a mobile terminal device (MT), etc.
  • the terminal device may be a car with communication function, a smart car, a mobile phone (Mobile Phone), a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, an augmented reality (Augmented Reality, AR) terminal device, a wireless terminal device in industrial control (Industrial Control), a wireless terminal device in self-driving (Self-Driving), a wireless terminal device in remote medical surgery (Remote Medical Surgery), a wireless terminal device in smart grid (Smart Grid), a wireless terminal device in transportation safety (Transportation Safety), a wireless terminal device in smart city (Smart City), a wireless terminal device in smart home (Smart Home), etc.
  • the embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal device.
  • the codebook-based uplink transmission method is a spatial multiplexing transmission method that determines the uplink channel precoding based on a fixed codebook. It is a commonly used transmission method.
  • the terminal device needs to configure at most one SRS (Sounding Reference Signal) resource set for codebook-based uplink transmission.
  • the SRS resource set can be configured with multiple (N SRS ) SRS resources.
  • the network side will feedback the SRS resource indication (SRI, SRS Resource Index) of log2 (NSRS) bits, and select the SRS resource through the SRI indication.
  • the network device is based on the measurement of uplink CSI (Channel State Information) and finally determines the precoding matrix TPMI (Transmission Precoding Matrix Indicator) and the number of transmission layers RI (Rank Indicator) used by the terminal for actual transmission and notifies the terminal.
  • TPMI Transmission Precoding Matrix Indicator
  • RI Rank Indicator
  • the data of the terminal device in the subsequent uplink transmission needs to be precoded using the precoding matrix specified by the network device, and the precoded data is mapped to the corresponding antenna port according to the spatial filter corresponding to the SRS resource indicated by SRI.
  • Different SRS will be transmitted using different spatial filters, so the precoded data of the terminal needs to be filtered by the spatial filter used by the SRS indicated by SRI. In this way, uplink data transmission from a single layer to full rank can be supported.
  • the communication system defines three types of coherent transmission for UEs, namely, fully coherent transmission of all antennas, coherent transmission of some antennas, and incoherent transmission of antennas. Therefore, the codebook design for uplink transmission needs to support the corresponding three types of codewords, namely, fully coherent transmission codewords for all antennas, coherent transmission codewords for some antennas, and incoherent transmission codewords for antennas.
  • the uplink supports a maximum of 4 ports and a maximum of 4 layers of transmission, so the maximum dimension of the corresponding codebook matrix is 4*4.
  • the present disclosure proposes a codebook-based uplink channel sending method and device thereof.
  • FIG2 is a flow chart of a method for sending an uplink channel based on a codebook provided in an embodiment of the present disclosure. It should be noted that the method in the embodiment of the present disclosure is executed by a terminal device. As shown in FIG2 , the method for sending an uplink channel based on a codebook includes the following steps:
  • Step 201 determine a codebook that matches the number of antenna ports for transmitting uplink channels of a terminal device.
  • the terminal device may determine a codebook that matches the number of its own antenna ports, wherein the codebook may include at least one codeword or a codeword set.
  • the number of antenna ports of the uplink channel sent by the terminal device is 8, which can support up to 8 layers of uplink transmission based on the codebook.
  • the terminal device can determine the codebook that matches the number of its own antenna ports, that is, an 8-port codebook.
  • the polarization directions of the multiple antenna ports are the same.
  • the number of antenna ports for the uplink channel sent by the terminal device is 8, and the polarization directions of the 8 antenna ports are the same, such as, the polarization directions of the 8 antenna ports are vertical polarization; for another example, the polarization directions of the 8 antenna ports are horizontal polarization or other polarization directions.
  • the terminal device may not calibrate all antenna ports to enable coherent transmission.
  • the NR system defines three types of terminal antenna coherent transmission capabilities: Full coherence: All antenna ports of the terminal device can be coherently transmitted; Partial coherence: Antenna ports in the same coherent transmission group of the terminal device can be coherently transmitted, and antenna ports in different coherent transmission groups cannot be coherently transmitted; Incoherence: No antenna port of the terminal device can be coherently transmitted.
  • the codebook for uplink transmission can support three corresponding types of codewords (codeword matrices), and the terminal device can determine a codebook that matches the number of its own antenna ports, which may include at least one of the following: a codeword set for full coherent transmission; a codeword set for partial coherent transmission, and a codeword set for incoherent transmission.
  • codeword in the present disclosure may refer to a precoding matrix
  • codebook may be a collection of one or more codewords/precoding matrices.
  • Step 202 Precoding the uplink channel using the codewords in the codebook.
  • the terminal device may select an indicated codeword from a codebook to perform precoding processing on an uplink channel according to the indication information sent by the network device.
  • the indication information sent by the network device may include a transmission precoding matrix indication TPMI (Transmission Precoding Matrix Indicator) and/or a sounding reference signal resource indication SRI (Sounding Reference Signal (SRS) Resource Indicator).
  • TPMI Transmission Precoding Matrix Indicator
  • SRI Sounding Reference Signal
  • the terminal device can determine the corresponding codeword from the codebook according to the TPMI sent by the network device, or can determine the corresponding codeword from the codebook according to the TPMI and SRI sent by the network device. Furthermore, the terminal device can use the determined codeword to perform precoding processing on the uplink channel to complete the transmission of the uplink channel.
  • Step 203 Send the precoded uplink data channel to the network device.
  • the terminal device can map the precoded data to the corresponding antenna port and send the precoded uplink data channel to the network device.
  • the uplink data channel may be a PUSCH.
  • the antenna ports of the uplink channel are multiple, and the polarization directions of the multiple antenna ports are the same; the uplink channel is precoded using the codewords in the codebook; and the uplink data channel after precoding is sent to the network device.
  • a codebook that matches the number of antenna ports for sending an uplink channel by the terminal device can be determined, and the uplink data channel after precoding using the codewords in the codebook is sent to the network device.
  • Uplink transmission based on the codebook can realize spatial multiplexing of uplink channel precoding, effectively improve the uplink channel transmission rate, thereby improving communication efficiency.
  • FIG3 is a flow chart of another codebook-based uplink channel sending method provided by an embodiment of the present disclosure.
  • the method can be executed by a terminal device.
  • the codebook-based uplink channel sending method can be executed alone, or can be executed together with any embodiment of the present disclosure or a possible implementation method in an embodiment, or can be executed together with any technical solution in the related technology.
  • the codebook-based uplink channel sending method may include the following steps:
  • Step 301 determining dimension information and oversampling factors of multiple antenna ports.
  • multiple antenna ports may have multiple dimensional information, wherein each dimensional information may support multiple sets of oversampling factors (OversamplingFactor).
  • Each set of oversampling factors may include an oversampling factor O1 of a first dimension in the corresponding dimensional information in the antenna array and an oversampling factor O2 of a second dimension in the corresponding dimensional information.
  • the dimensional information of the 8 antenna ports and the multiple groups of oversampling factors supported by each dimensional information can be shown in Table 1, which indicates the corresponding relationship between the dimensional information of the 8 antenna ports and the supported oversampling factors.
  • each element and each corresponding relationship in Table 1 exist independently; these elements and corresponding relationships are exemplarily listed in the same table, but it does not mean that all elements and corresponding relationships in the table must exist at the same time as shown in Table 1.
  • the value of each element and each corresponding relationship is independent of any other element value or corresponding relationship in Table 1. Therefore, those skilled in the art can understand that the value of each element and each corresponding relationship in Table 1 are all independent embodiments.
  • Step 302 Generate a codeword set for full coherent transmission based on the DFT beam vector according to the dimension information and the oversampling factor.
  • the DFT beam vector corresponding to the codeword of each layer can be determined based on the dimensional information and the oversampling factor. Furthermore, based on the DFT beam vector corresponding to the codeword of each layer, the codeword of each layer can be determined. Based on the codeword of each layer, a codeword set for full coherent transmission can be generated.
  • a set of codewords for fully coherent transmission is generated based on the DFT beam vector according to the dimensionality information and the oversampling factors.
  • a set of codewords for fully coherent transmission can be generated based on the DFT beam vector according to the dimensionality information and the oversampling factors of multiple antenna ports.
  • FIG. 5 is a flow chart of another codebook-based uplink channel sending method provided by an embodiment of the present disclosure.
  • the method can be executed by a terminal device.
  • the codebook-based uplink channel sending method can be executed alone, or it can be executed together with any embodiment of the present disclosure or a possible implementation method in an embodiment, and it can also be executed together with any technical solution in the related technology.
  • the codebook-based uplink channel sending method may include the following steps:
  • Step 501 determine the dimension information and oversampling factors of multiple antenna ports.
  • Step 502 determine first indication information and second indication information.
  • the first indication information and the second indication information are used to indicate the DFT beam corresponding to the first layer codeword.
  • the first indication information and the second indication information may be determined according to the dimension information and the oversampling factor of the multiple antenna ports, wherein the first indication information and the second indication information are used to indicate the DFT beam corresponding to the first layer codeword.
  • the DFT beam vector is the same as the codebook beam vector, and the calculation formula may be as follows:
  • Step 503 determine the third indication information.
  • the third indication information is used to indicate the offset of the beam index of other layer codewords under the dimension information relative to the beam index of the first layer codeword.
  • the offset of the beam index of the other layer codewords relative to the beam index of the first layer codeword under the dimensional information of the antenna port, that is, the beam vector selected by the other layer codewords is
  • l (k) is indicated by the beam index i 1,1 +k 1 of the first layer codeword
  • m (k) is indicated by the beam index i 1,2 +k 2 of the first layer codeword
  • k represents the number of layers of the codeword
  • k 1 and k 2 are the offsets of the beam indexes of the other layer codewords relative to the beam index of the first layer codeword
  • k 1 and k 2 may be indicated by the third indication information i 4.
  • the maximum value of k 1 may be (N 1 -1)O 1
  • the maximum value of k 2 may be (N 2 -1)O 2
  • the maximum values of the offsets k 1 and k 2 indicated by the third indication information (i 4 ) under different antenna dimensions (N 1 , N 2 ) may be as shown in Table 2, which indicates the corresponding relationship between the antenna dimensions of 8 antenna ports and the maximum values of the offsets.
  • each element and each corresponding relationship in Table 2 exist independently; these elements and corresponding relationships are exemplarily listed in the same table, but it does not mean that all elements and corresponding relationships in the table must exist at the same time as shown in Table 2.
  • the value of each element and each corresponding relationship is independent of any other element value or corresponding relationship in Table 2. Therefore, those skilled in the art can understand that the value of each element and each corresponding relationship in Table 2 are all independent embodiments.
  • Step 504 Determine the DFT beams corresponding to the codewords of other layers according to the third indication information.
  • the DFT beams corresponding to the other layer codewords may be determined according to the offset of the beam index of the other layer codewords relative to the beam index of the first layer codeword under the dimension information indicated by the third indication information.
  • Step 505 determine a codeword set for full coherent transmission according to the first layer codeword and/or other layer codewords.
  • step 501 may be implemented in any manner in the embodiments of the present disclosure, and the embodiment of the present disclosure does not limit this and will not be described in detail.
  • the first indication information, the second indication information and the third indication information are determined, and the beam vectors corresponding to the codewords of each layer are determined through the first indication information, the second indication information and the third indication information.
  • the codewords of each layer can be determined, and then, a set of codewords for full coherent transmission can be generated according to the codewords of each layer.
  • FIG6 is a flow chart of another codebook-based uplink channel sending method provided in an embodiment of the present disclosure.
  • the method can be executed by a terminal device.
  • the codebook-based uplink channel sending method can be executed alone, or can be executed in combination with any embodiment of the present disclosure or a possible implementation method in an embodiment, or can be executed in combination with any technical solution in the related technology.
  • the codebook-based uplink channel sending method may include the following steps:
  • Step 601 divide a plurality of antenna ports into a plurality of antenna port groups.
  • the eight antenna ports may be divided into two antenna port groups or four antenna port groups.
  • Step 602 Determine a codeword set for partial coherent transmission according to the number of antenna ports in each antenna port group and antenna correlations between multiple antenna port groups.
  • different antenna port groups and antenna correlations between multiple antenna port groups correspond to different ways of determining codeword sets for partially coherent transmission.
  • the 4-port single-polarization codeword can be set with reference to Table 2, and the maximum values of the offsets k1 and k2 indicated by the third indication information ( i4 ) under each antenna dimension ( N1 , N2 ) of the 4-port single-polarization codeword can be shown in Table 3.
  • Table 3 indicates the corresponding relationship between each antenna dimension of the 4-port single-polarization codebook and the maximum value of the offset.
  • each element and each corresponding relationship in Table 3 exist independently; these elements and corresponding relationships are exemplarily listed in the same table, but it does not mean that all elements and corresponding relationships in the table must exist at the same time as shown in Table 3.
  • the value of each element and each corresponding relationship is independent of any other element value or corresponding relationship in Table 3. Therefore, those skilled in the art can understand that the value of each element and each corresponding relationship in Table 3 are all independent embodiments.
  • the 8-port 8-layer partially coherent codeword can be designed as in represents the common phase coefficient, and
  • the number of layers is less than 8, that is, any L columns are selected from the 8-layer codeword, and the absolute value of the difference between the number of columns selected from the first 4 layers and the number of columns selected from the last 4 layers is less than or equal to 1.
  • 6 columns are selected from the 8-layer codeword, the number of columns selected from the first 4 layers can be 3 columns, the number of columns selected from the last 4 layers can be 3 columns, and the absolute value of the difference between the number of columns selected from the first 4 layers and the number of columns selected from the last 4 layers is equal to 0.
  • antenna port groups there are 4 antenna port groups. Two cases can be considered. In the first case, 2 port groups are coherent and the other 2 port groups are coherent. In the second case, 3 port groups are coherent and the other 1 port group is coherent.
  • the codeword set for partial coherent transmission can be shown as follows:
  • multiple antenna ports are divided into multiple antenna port groups; according to the number of antenna ports in each antenna port group and the antenna correlation between the multiple antenna port groups, a codeword set for partial coherent transmission is determined.
  • a codeword set for partial coherent transmission can be determined according to the number of antenna ports in each antenna port group and the antenna correlation between the multiple antenna port groups.
  • FIG7 is a flow chart of another uplink channel transmission method based on a codebook provided by the embodiment of the present disclosure.
  • the method can be executed by a terminal device.
  • the uplink channel transmission method based on a codebook can be executed alone, or can be executed together with any embodiment of the present disclosure or a possible implementation method in the embodiment, or can be executed together with any technical solution in the related technology.
  • the uplink channel transmission method based on a codebook can include the following steps:
  • Step 701 determine a codeword set for non-coherent transmission according to an antenna selection vector corresponding to the number of antenna ports.
  • the antenna selection vector is used to map the signal to the corresponding antenna port.
  • 8 antenna ports and 1 layer codeword such as [1 0 0 0 0 0 0 0] T or [0 0 1 0 0 0 0 0] T , where T represents the transposed matrix, and each layer is mapped only to one corresponding antenna port.
  • the incoherent codeword can use an 8*1 antenna selection vector, which is the same as the dual-polarization codeword.
  • the number of codewords is For example, when the number of layers is 1, the non-coherent codewords may be as shown in Table 4, which indicates 8-antenna-port 1-layer single-polarization non-coherent codewords.
  • each element and each corresponding relationship in Table 4 exist independently; these elements and corresponding relationships are exemplarily listed in the same table, but it does not mean that all elements and corresponding relationships in the table must exist at the same time as shown in Table 4.
  • the value of each element and each corresponding relationship are independent of any other element value or corresponding relationship in Table 4. Therefore, those skilled in the art can understand that the value of each element and each corresponding relationship in Table 4 are all independent embodiments.
  • codeword design in Table 4 is not energy normalized.
  • codeword When the codeword is energy normalized, it can be multiplied by a set energy normalization factor.
  • the energy normalization factor may be set to the arithmetic square root of the reciprocal of the number of non-zero elements in the matrix.
  • the codeword set for non-coherent transmission can be determined.
  • the codebook-based uplink channel sending method of the disclosed embodiment determines a codebook that matches the number of antenna ports for sending uplink channels by a terminal device, wherein the uplink channel has multiple antenna ports and the polarization directions of the multiple antenna ports are the same; the uplink channel is precoded using codewords in the codebook; and the uplink data channel after the precoding is sent to a network device.
  • a codebook that matches the number of antenna ports for sending uplink channels by the terminal device can be determined, and the uplink data channel after the precoding using the codewords in the codebook is sent to the network device.
  • Uplink transmission based on the codebook can realize spatial multiplexing of uplink channel precoding, effectively improve the uplink channel transmission rate, and thus improve communication efficiency.
  • FIG8 is a flow chart of another uplink channel sending method based on a codebook provided by the embodiment of the present disclosure.
  • the method can be executed by a network device.
  • the uplink channel sending method based on a codebook can be executed alone, or can be executed together with any embodiment of the present disclosure or a possible implementation method in the embodiment, or can be executed together with any technical solution in the related technology.
  • the uplink channel sending method based on a codebook can include the following steps:
  • Step 801 receiving an uplink data channel sent by a terminal device after being precoded by a codeword in a codebook.
  • the codebook is a codebook that matches the number of antenna ports for transmitting uplink channels of the terminal device. There are multiple antenna ports for the uplink channel, and the polarization directions of the multiple antenna ports are the same.
  • the terminal device can determine a codebook that matches the number of its own antenna ports, wherein there are multiple antenna ports for an uplink channel, and the polarization directions of the multiple antenna ports are the same.
  • the terminal device can select an indicated codeword from the codebook according to the indication information sent by the network device to perform precoding processing on the uplink channel, and can map the precoded data to the corresponding antenna port, and send the precoded uplink data channel to the network device.
  • the network device can receive the uplink data channel sent by the terminal device after precoding processing using the codeword in the codebook.
  • the terminal device can determine the codebook that matches the number of antenna ports for sending the uplink channel of the terminal device, and send the uplink data channel precoded with the codewords in the codebook to the network device.
  • the network device can receive the uplink data channel sent by the terminal device after precoding processing with the codewords in the codebook. Uplink transmission based on the codebook can realize spatial multiplexing of uplink channel precoding, effectively improve the uplink channel transmission rate, thereby improving communication efficiency.
  • the codebook includes at least one of the following: a codeword set for fully coherent transmission; a codeword set for partially coherent transmission; and a codeword set for incoherent transmission.
  • a codeword set for full coherent transmission is generated based on a DFT beam vector according to the dimensional information and oversampling factors of the multiple antenna ports.
  • a set of codewords for fully coherent transmission is determined based on first-layer codewords and/or other-layer codewords, and the first-layer codewords are determined based on first indication information and second indication information, and the first indication information and the second indication information are used to indicate the DFT beam corresponding to the first-layer codeword; the DFT beam corresponding to the other-layer codeword is determined based on third indication information, and the third indication information is used to indicate the offset of the beam index of the other-layer codeword under the dimension information relative to the beam index of the first-layer codeword.
  • each type of dimensional information in at least one type of dimensional information of multiple antenna ports supports multiple groups of oversampling factors.
  • a set of codewords for partially coherent transmission is determined based on the number of antenna ports in each antenna port group into which the multiple antenna ports are divided, and the antenna correlation between the multiple antenna port groups.
  • a codeword set for non-coherent transmission is determined according to an antenna selection vector corresponding to the number of antenna ports.
  • the codebook-based uplink channel sending method of the disclosed embodiment receives an uplink data channel sent by a terminal device after being pre-coded with codewords in the codebook. Therefore, when the number of uplink sending antenna ports is multiple and the polarization direction is the same, the terminal device can determine a codebook that matches the number of antenna ports for sending the uplink channel of the terminal device, and send the uplink data channel pre-coded with codewords in the codebook to a network device.
  • the network device can receive the uplink data channel sent by the terminal device after being pre-coded with codewords in the codebook. Uplink transmission based on the codebook can realize spatial multiplexing of uplink channel precoding, effectively improve the uplink channel transmission rate, and thus improve communication efficiency.
  • the methods provided by the embodiments of the present disclosure are introduced from the perspectives of network devices and terminal devices, respectively.
  • the network devices and terminal devices may include hardware structures and software modules, and the above functions may be implemented in the form of hardware structures, software modules, or hardware structures plus software modules.
  • One of the above functions may be executed in the form of hardware structures, software modules, or hardware structures plus software modules.
  • the present disclosure further provides a codebook-based uplink channel sending device. Since the codebook-based uplink channel sending device provided in the embodiments of the present disclosure corresponds to the methods provided in the above-mentioned embodiments, the implementation of the codebook-based uplink channel sending method is also applicable to the codebook-based uplink channel sending device provided in this embodiment, and is not described in detail in this embodiment.
  • FIG9 is a schematic diagram of the structure of a codebook-based uplink channel sending device provided in an embodiment of the present disclosure, wherein the device is applied to a terminal device.
  • the codebook-based uplink channel sending device 900 includes: a processing unit 910 and a transceiver unit 920, wherein:
  • the processing unit 910 is used to determine a codebook that matches the number of antenna ports for sending an uplink channel by the terminal device, where the uplink channel has multiple antenna ports and the polarization directions of the multiple antenna ports are the same; the processing unit 910 is also used to perform precoding processing on the uplink channel using the codewords in the codebook; the transceiver unit 920 is used to send the uplink data channel after precoding processing to the network device.
  • the codebook includes at least one of the following: a codeword set for full coherent transmission; a codeword set for partial coherent transmission; and a codeword set for incoherent transmission.
  • the processing unit 910 is also used to determine the dimensional information and oversampling factors of the multiple antenna ports; and generate the codeword set for the fully coherent transmission based on the DFT beam vector according to the dimensional information and the oversampling factor.
  • the processing unit 910 is also used to determine first indication information and second indication information, the first indication information and the second indication information are used to indicate the DFT beam corresponding to the first layer codeword; determine third indication information, the third indication information is used to indicate the offset of the beam index of other layer codewords under the dimension information relative to the beam index of the first layer codeword; determine the DFT beam corresponding to the other layer codeword according to the third indication information; determine the codeword set for full coherent transmission according to the first layer codeword and/or other layer codewords.
  • each type of dimensional information in at least one type of dimensional information of multiple antenna ports supports multiple groups of oversampling factors.
  • the processing unit 910 is also used to divide multiple antenna ports into multiple antenna port groups; determine a set of codewords for partially coherent transmission based on the number of antenna ports in each antenna port group and the antenna correlation between the multiple antenna port groups.
  • the processing unit 910 is further configured to determine a codeword set for non-coherent transmission according to an antenna selection vector corresponding to the number of antenna ports.
  • the codebook-based uplink channel sending device of the embodiment of the present disclosure determines a codebook that matches the number of antenna ports for sending uplink channels of a terminal device, where the uplink channel has multiple antenna ports and the polarization directions of the multiple antenna ports are the same; uses codewords in the codebook to precode the uplink channel; and sends the uplink data channel after the precoding processing to a network device.
  • a codebook that matches the number of antenna ports for sending uplink channels of a terminal device can be determined, and the uplink data channel after the precoding processing using the codewords in the codebook can be sent to the network device.
  • Uplink transmission based on the codebook can realize spatial multiplexing of uplink channel precoding, effectively improve the uplink channel transmission rate, and thus improve communication efficiency.
  • the present disclosure further provides a codebook-based uplink channel sending device. Since the codebook-based uplink channel sending device provided in the embodiment of the present disclosure corresponds to the methods provided in the above-mentioned embodiments, the implementation of the codebook-based uplink channel sending method is also applicable to the codebook-based uplink channel sending device provided in this embodiment, and will not be described in detail in this embodiment.
  • FIG10 is a schematic diagram of the structure of a codebook-based uplink channel sending device provided in an embodiment of the present disclosure, wherein the device is applied to a network device.
  • the codebook-based uplink channel sending device 1000 includes: a transceiver unit 1010, wherein the transceiver unit is used to receive an uplink data channel sent by a terminal device after precoding processing with codewords in the codebook; the codebook is a codebook that matches the number of antenna ports for sending uplink channels by the terminal device, and the uplink channel has multiple antenna ports, and the polarization directions of the multiple antenna ports are the same.
  • the codebook includes at least one of the following: a codeword set for full coherent transmission; a codeword set for partial coherent transmission; and a codeword set for incoherent transmission.
  • a codeword set for full coherent transmission is generated based on a DFT beam vector according to the dimensional information and oversampling factors of the multiple antenna ports.
  • a set of codewords for fully coherent transmission is determined based on first-layer codewords and/or other-layer codewords; the first-layer codewords are determined based on first indication information and second indication information, and the first indication information and the second indication information are used to indicate the DFT beam corresponding to the first-layer codewords; the DFT beam corresponding to the other-layer codewords is determined based on third indication information, and the third indication information is used to indicate the offset of the beam index of the other-layer codewords under the dimension information relative to the beam index of the first-layer codewords.
  • each type of dimensional information in at least one type of dimensional information of multiple antenna ports supports multiple groups of oversampling factors.
  • a set of codewords for partially coherent transmission is determined based on the number of antenna ports in each antenna port group into which the multiple antenna ports are divided, and the antenna correlation between the multiple antenna port groups.
  • a codeword set for non-coherent transmission is determined according to an antenna selection vector corresponding to the number of antenna ports.
  • the codebook-based uplink channel sending device of the embodiment of the present disclosure receives an uplink data channel sent by a terminal device after being pre-coded with codewords in the codebook. Therefore, when the number of uplink sending antenna ports is multiple and the polarization direction is the same, the terminal device can determine a codebook that matches the number of antenna ports for sending uplink channels by the terminal device, and send the uplink data channel pre-coded with codewords in the codebook to a network device.
  • the network device can receive the uplink data channel sent by the terminal device after being pre-coded with codewords in the codebook. Uplink transmission based on the codebook can realize spatial multiplexing of uplink channel precoding, effectively improve the uplink channel transmission rate, and thus improve communication efficiency.
  • the communication device 1100 can be a network device, or a terminal device, or a chip, a chip system, or a processor that supports the network device to implement the above method, or a chip, a chip system, or a processor that supports the terminal device to implement the above method.
  • the device can be used to implement the method described in the above method embodiment, and the details can be referred to the description in the above method embodiment.
  • the communication device 1100 may include one or more processors 1101.
  • the processor 1101 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and the communication data
  • the central processing unit may be used to control the uplink channel sending device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.) based on the codebook, execute a computer program, and process the data of the computer program.
  • the communication device 1100 may further include one or more memories 1102, on which a computer program 1103 may be stored, and the processor 1101 executes the computer program 1103 so that the communication device 1100 performs the method described in the above method embodiment.
  • the computer program 1103 may be solidified in the processor 1101, in which case the processor 1101 may be implemented by hardware.
  • data may also be stored in the memory 1102.
  • the codebook-based uplink channel sending apparatus 1000 and the memory 1102 may be provided separately or integrated together.
  • the communication device 1100 may further include a transceiver 1105 and an antenna 1106.
  • the transceiver 1105 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to implement a transceiver function.
  • the transceiver 1105 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., and is used to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., and is used to implement a transmitting function.
  • the communication device 1100 may further include one or more interface circuits 1107.
  • the interface circuit 1107 is used to receive code instructions and transmit them to the processor 1101.
  • the processor 1101 executes the code instructions to enable the communication device 1100 to execute the method described in the above method embodiment.
  • the processor 1101 may include a transceiver for implementing the receiving and sending functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated.
  • the transceiver circuit, interface, or interface circuit may be used for reading and writing code/data, or the transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.
  • the communication device 1100 may include a circuit, and the circuit may implement the functions of sending or receiving or communicating in the aforementioned method embodiment.
  • the processor and transceiver described in the present disclosure may be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc.
  • the processor and transceiver may also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS N-type metal oxide semiconductor
  • PMOS P-type metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a network device or a terminal device, but the scope of the communication device described in the present disclosure is not limited thereto, and the structure of the communication device may not be limited by FIG. 9-FIG. 10.
  • the communication device may be an independent device or may be part of a larger device.
  • the communication device may be:
  • the IC set may also include a storage component for storing data and computer programs;
  • ASIC such as modem
  • the communication device can be a chip or a chip system
  • the communication device can be a chip or a chip system
  • the chip shown in Figure 12 includes a processor 1201 and an interface 1202.
  • the number of processors 1201 can be one or more, and the number of interfaces 1202 can be multiple.
  • Interface 1202 used for code instructions and transmission to the processor
  • the processor 1201 is used to run code instructions to execute the methods shown in FIG. 2 , FIG. 3 , FIG. 5 , FIG. 6 and FIG. 7 .
  • Interface 1202 used for code instructions and transmission to the processor
  • the processor 1201 is used to run code instructions to execute the method shown in FIG. 8 .
  • the chip further includes a memory 1203, and the memory 1203 is used to store necessary computer programs and data.
  • the embodiments of the present disclosure also provide a communication system, which includes the codebook-based uplink channel sending device as a terminal device and the codebook-based uplink channel sending device as a network device in the embodiments of Figures 9 and 10 above, or the system includes the communication device as a terminal device and the communication device as a network device in the embodiment of Figure 11 above.
  • the present disclosure also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above-mentioned method embodiments when executed by a computer.
  • the present disclosure also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.
  • the computer program product includes one or more computer programs.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer program can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated.
  • Available media can be magnetic media (e.g., floppy disks, hard disks, tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid-state drives (SSD)), etc.
  • magnetic media e.g., floppy disks, hard disks, tapes
  • optical media e.g., high-density digital video discs (DVD)
  • DVD digital video discs
  • semiconductor media e.g., solid-state drives (SSD)
  • At least one in the present disclosure may also be described as one or more, and a plurality may be two, three, four or more, which is not limited in the present disclosure.
  • the technical features in the technical feature are distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc., and there is no order of precedence or size between the technical features described by the "first”, “second”, “third”, “A”, “B”, “C” and “D”.
  • the corresponding relationships shown in the tables in the present disclosure can be configured or predefined.
  • the values of the information in each table are only examples and can be configured as other values, which are not limited by the present disclosure.
  • the corresponding relationships shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc.
  • the names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication device, and the values or representations of the parameters can also be other values or representations that can be understood by the communication device.
  • other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables.
  • the predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

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Abstract

本公开提出了一种基于码本的上行信道发送方法及装置，涉及通信技术领域，该方法包括：确定与终端设备发送上行信道的天线端口数匹配的码本，上行信道的天线端口为多个，多个天线端口的极化方向相同；采用码本中的码字对上行信道进行预编码处理；向网络设备发送经过预编码处理后的上行数据信道。由此，在上行发送天线端口数量为多个且极化方向相同的情况下，可确定与终端设备发送上行信道的天线端口数匹配的码本，并向网络设备发送采用码本中的码字进行预编码处理后的上行数据信道，基于码本进行上行传输能够实现上行信道预编码的空间复用，有效提高了上行信道传输的速率，从而提高了通信效率。

Description

基于码本的上行信道发送方法及装置 技术领域
本公开涉及通信技术领域，特别涉及一种基于码本的上行信道发送方法及装置。
背景技术
在5G(5th Generation Mobile Communication Technology，第五代移动通信技术)NR(New Radio，新空口)系统中，基于码本的上行信道发送方法是一种基于固定的码本确定上行信道预编码的空间复用的传输方法，它是一种常用的传输方法。
目前，为了支持更高的与下行可比的上行传输速率，可以考虑对上行发送天线端口数量4进行扩展，同时支持4层以上的传输，因此，在上行发送天线端口数量扩展到多个的情况下，如何基于码本进行上行传输是研究重点内容之一。
发明内容
本公开第一方面实施例提出了一种基于码本的上行信道发送方法，所述方法由终端设备执行，所述方法包括：确定与所述终端设备发送上行信道的天线端口数匹配的码本，所述上行信道的天线端口为多个，所述多个天线端口的极化方向相同；采用所述码本中的码字对所述上行信道进行预编码处理；向网络设备发送经过预编码处理后的上行数据信道。
可选地，所述码本包括以下至少一种：全相干传输的码字集合；部分相干传输的码字集合；非相干传输的码字集合。
可选地，所述方法还包括：确定所述多个天线端口的维度信息和过采样因子；根据所述维度信息和过采样因子，基于DFT(Discrete Fourier Transform，离散傅里叶变换)波束向量生成所述全相干传输的码字集合。
可选地，所述根据所述维度信息和过采样因子，基于DFT波束向量生成全相干传输的码字集合，包括：确定第一指示信息和第二指示信息，所述第一指示信息和第二指示信息用于指示第一层码字对应的DFT波束；确定第三指示信息，所述第三指示信息用于指示所述维度信息下其他层码字的波束索引相对于所述第一层码字的波束索引的偏移量；根据所述第三指示信息，确定所述其他层码字对应的DFT波束；根据所述第一层码字和/或其他层码字，确定所述全相干传输的码字集合。
可选地，所述多个天线端口的至少一种维度信息中每种维度信息支持多组过采样因子。
可选地，所述方法还包括：将所述多个天线端口分成多个天线端口组；根据每个天线端口组中天线端口的个数，以及所述多个天线端口组之间的天线相关性，确定所述部分相干传输的码字集合。
可选地，所述方法还包括：根据与所述天线端口数对应的天线选择向量，确定所述非相干传输的码字集合。
本公开第二方面实施例提出了一种基于码本的上行信道发送方法，所述方法由网络设备执行，所述方法包括：接收终端设备发送的经过码本中的码字进行预编码处理后的上行数据信道；所述码本是与所述终端设备发送上行信道的天线端口数匹配的码本，所述上行信道的天线端口为多个，所述多个天线端口的极化方向相同。
可选地，所述码本包括以下至少一种：全相干传输的码字集合；部分相干传输的码字集合；非相干传输的码字集合。
可选地，所述全相干传输的码字集合，是根据所述多个天线端口的维度信息和过采样因子，基于DFT波束向量生成的。
可选地，所述全相干传输的码字集合，是根据第一层码字和/或其他层码字确定的；所述第一层码字是根据第一指示信息和第二指示信息确定的，所述第一指示信息和第二指示信息用于指示第一层码字对应的DFT波束；所述其他层码字对应的DFT波束是根据第三指示信息确定的，所述第三指示信息用于指示所述维度信息下其他层码字的波束索引相对于所述第一层码字的波束索引的偏移量。
可选地，所述多个天线端口的至少一种维度信息中每种维度信息支持多组过采样因子。
可选地，所述部分相干传输的码字集合，是根据所述多个天线端口分成的多个天线端口组中，每个天线端口组中天线端口的个数，以及所述多个天线端口组之间的天线相关性确定的。
可选地，所述非相干传输的码字集合，是根据与所述天线端口数对应的天线选择向量确定的。
本公开第三方面实施例提出了一种基于码本的上行信道发送装置，所述装置应用于终端设备，所述装置包括：处理单元，用于确定与所述终端设备发送上行信道的天线端口数匹配的码本，所述上行信道的天线端口为多个，所述多个天线端口的极化方向相同；所述处理单元，还用于采用所述码本中的码字对所述上行信道进行预编码处理；收发单元，用于向网络设备发送经过预编码处理后的上行数据信道。
可选地，所述码本包括以下至少一种：全相干传输的码字集合；部分相干传输的码字集合；非相干传输的码字集合。
可选地，处理单元，还用于确定所述多个天线端口的维度信息和过采样因子；根据所述维度信息和过采样因子，基于DFT波束向量生成所述全相干传输的码字集合。
可选地，处理单元，还用于确定第一指示信息和第二指示信息，所述第一指示信息和第二指示信息用于指示第一层码字对应的DFT波束；确定第三指示信息，所述第三指示信息用于指示所述维度信息下其他层码字的波束索引相对于所述第一层码字的波束索引的偏移量；根据所述第三指示信息，确定所述其他层码字对应的DFT波束；根据所述第一层码字和/或其他层码字，确定所述全相干传输的码字集合。
可选地，所述多个天线端口的至少一种维度信息中每种维度信息支持多组过采样因子。
可选地，处理单元，还用于将所述多个天线端口分成多个天线端口组；根据每个天线端口组中天线端口的个数，以及所述多个天线端口组之间的天线相关性，确定所述部分相干传输的码字集合。
可选地，处理单元，还用于根据与所述天线端口数对应的天线选择向量，确定所述非相干传输的码字集合。
本公开第四方面实施例提出了一种基于码本的上行信道发送装置，所述装置应用于网络设备，所述装置包括：收发单元，用于接收终端设备发送的经过码本中的码字进行预编码处理后的上行数据信道；所述码本是与所述终端设备发送上行信道的天线端口数匹配的码本，所述上行信道的天线端口为多个，所述多个天线端口的极化方向相同。
可选地，所述码本包括以下至少一种：全相干传输的码字集合；部分相干传输的码字集合；非相干传输的码字集合。
可选地，所述全相干传输的码字集合，是根据所述多个天线端口的维度信息和过采样 因子，基于DFT波束向量生成的。
可选地，所述全相干传输的码字集合，是根据第一层码字和/或其他层码字确定的；所述第一层码字是根据第一指示信息和第二指示信息确定的，所述第一指示信息和第二指示信息用于指示第一层码字对应的DFT波束；所述其他层码字对应的DFT波束是根据第三指示信息确定的，所述第三指示信息用于指示所述维度信息下其他层码字的波束索引相对于所述第一层码字的波束索引的偏移量。
可选地，所述多个天线端口的至少一种维度信息中每种维度信息支持多组过采样因子。
可选地，所述部分相干传输的码字集合，是根据所述多个天线端口分成的多个天线端口组中，每个天线端口组中天线端口的个数，以及所述多个天线端口组之间的天线相关性确定的。
可选地，所述非相干传输的码字集合，是根据与所述天线端口数对应的天线选择向量确定的。
本公开第五方面实施例提供一种通信装置，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行上述第一方面实施例所述的基于码本的上行信道发送方法，或者，执行上述第二方面实施例所述的基于码本的上行信道发送方法。
本公开第六方面实施例提供另一种通信装置，该装置包括处理器和接口电路，该接口电路用于接收代码指令并传输至该处理器，该处理器用于运行所述代码指令以使该装置执行上述第一方面实施例所述的基于码本的上行信道发送方法，或者，执行上述第二方面实施例所述的基于码本的上行信道发送方法。
本公开第七方面实施例提供一种计算机可读存储介质，用于存储有指令，当所述指令被执行时，使上述第一方面实施例所述的基于码本的上行信道发送方法被实现，或者，使上述第二方面实施例所述的基于码本的上行信道发送方法被实现。
本公开第八方面实施例提供一种通信系统，所述通信系统包括：终端设备，用于执行上述第一方面实施例所述的基于码本的上行信道发送方法，网络设备，用于执行上述第二方面实施例所述的基于码本的上行信道发送方法。
本公开第九方面实施例提出了一种计算机程序，当其在计算机上运行时，使得计算机执行第一方面实施例所述的基于码本的上行信道发送方法，或者，执行第二方面实施例所述的基于码本的上行信道发送方法。
本公开实施例提供的一种基于码本的上行信道发送方法及装置，通过确定与终端设备发送上行信道的天线端口数匹配的码本，上行信道的天线端口为多个，多个天线端口的极化方向相同；采用码本中的码字对上行信道进行预编码处理；向网络设备发送经过预编码处理后的上行数据信道，由此，在上行发送天线端口数量为多个且极化方向相同的情况下，可确定与终端设备发送上行信道的天线端口数匹配的码本，并向网络设备发送采用码本中的码字进行预编码处理后的上行数据信道，基于码本进行上行传输能够实现上行信道预编码的空间复用，有效提高了上行信道传输的速率，从而提高了通信效率。
本公开附加的方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本公开的实践了解到。
附图说明
本公开上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显 和容易理解，其中：
图1为本公开实施例提供的一种通信系统的架构示意图；
图2为本公开实施例提供的一种基于码本的上行信道发送方法的流程示意图；
图3为本公开实施例提供的另一种基于码本的上行信道发送方法的流程示意图
图4(a)为本公开实施例提供的一种终端设备天线排布示意图；
图4(b)为本公开实施例提供的另一种终端设备天线排布示意图；
图5为本公开实施例提供的另一种基于码本的上行信道发送方法的流程示意图；
图6为本公开实施例提供的另一种基于码本的上行信道发送方法的流程示意图；
图7为本公开实施例提供的另一种基于码本的上行信道发送方法的流程示意图；
图8为本公开实施例提供的另一种基于码本的上行信道发送方法的流程示意图；
图9为本公开实施例提供的一种基于码本的上行信道发送装置的结构示意图；
图10为本公开实施例提供的一种基于码本的上行信道发送装置的结构示意图；
图11是本公开实施例提供的一种通信装置的结构示意图；
图12是本公开实施例提供的一种芯片的结构示意图。
具体实施方式
下面详细描述本公开的实施例，所述实施例的示例在附图中示出。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开实施例相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开实施例的一些方面相一致的装置和方法的例子。
在本公开实施例使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开实施例。在本公开实施例和所附权利要求书中所使用的单数形式的“一种”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开实施例可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开实施例范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”及“若”可以被解释成为“在……时”或“当……时”或“响应于确定”。
下面详细描述本公开的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的要素。下面通过参考附图描述的实施例是示例性的，旨在用于解释本公开，而不能理解为对本公开的限制。
为了更好的理解本公开实施例公开的一种基于码本的上行信道发送方法，下面首先对本公开实施例适用的通信系统进行描述。
请参见图1，图1为本公开实施例提供的一种通信系统的架构示意图。该通信系统可包括但不限于一个网络设备和一个终端设备，图1所示的设备数量和形态仅用于举例并不构成对本公开实施例的限定，实际应用中可以包括两个或两个以上的网络设备，两个或两个以上的终端设备。图1所示的通信系统以包括一个网络设备101和一个终端设备102为例。
需要说明的是，本公开实施例的技术方案可以应用于各种通信系统。例如：长期演进(Long Term Evolution，LTE)系统、第五代移动通信系统、5G新空口系统，或者其他未 来的新型移动通信系统等。
可以理解的是，本公开实施例描述的通信系统是为了更加清楚的说明本公开实施例的技术方案，并不构成对于本公开实施例提供的技术方案的限定，本领域普通技术人员可知，随着系统架构的演变和新业务场景的出现，本公开实施例提供的技术方案对于类似的技术问题，同样适用。
本公开实施例中的网络设备101是网络侧的一种用于发射或接收信号的实体。例如，网络设备101可以为演进型基站(EvolvedNodeB，eNB)、传输点(Transmission Reception Point，TRP)、NR系统中的下一代基站(Next GenerationNodeB，gNB)、其他未来移动通信系统中的基站或无线保真(Wireless Fidelity，WiFi)系统中的接入节点等。本公开的实施例对网络设备所采用的具体技术和具体设备形态不做限定。本公开实施例提供的网络设备可以是由集中单元(Central Unit，CU)与分布式单元(Distributed Unit，DU)组成的，其中，CU也可以称为控制单元(Control Unit)，采用CU-DU的结构可以将网络设备，例如基站的协议层拆分开，部分协议层的功能放在CU集中控制，剩下部分或全部协议层的功能分布在DU中，由CU集中控制DU。
本公开实施例中的终端设备102是用户侧的一种用于接收或发射信号的实体，如手机。终端设备也可以称为终端设备(Terminal)、用户设备(User Equipment，UE)、移动台(Mobile Station，MS)、移动终端设备(Mobile Terminal，MT)等。终端设备可以是具备通信功能的汽车、智能汽车、手机(Mobile Phone)、穿戴式设备、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality，VR)终端设备、增强现实(Augmented Reality，AR)终端设备、工业控制(Industrial Control)中的无线终端设备、无人驾驶(Self-Driving)中的无线终端设备、远程手术(Remote Medical Surgery)中的无线终端设备、智能电网(Smart Grid)中的无线终端设备、运输安全(Transportation Safety)中的无线终端设备、智慧城市(Smart City)中的无线终端设备、智慧家庭(Smart Home)中的无线终端设备等等。本公开的实施例对终端设备所采用的具体技术和具体设备形态不做限定。
在5G(5th Generation Mobile Communication Technology，第五代移动通信技术)NR(New Radio，新空口)系统中，基于码本(Codebook)的上行发送方法是一种基于固定的码本确定上行信道预编码的空间复用的传输方法，它是一种常用的传输方法。
NR中基于码本的PUSCH(Physical Uplink Shared Channel，物理上行共享信道)传输中，终端设备需要配置最多一个SRS(Sounding Reference Signal，探测参考信号)资源集合用于基于码本的上行传输，SRS资源集可配置多个(N SRS个)SRS资源，网络侧会反馈log2(NSRS)比特的SRS资源指示(SRI，SRS Resource Index)，通过SRI指示选择SRS资源，同样网络设备基于上行CSI(Channel State Information，信道状态信息)的测量最后由网络决定终端实际传输使用的预编码矩阵TPMI(TransmissionPrecoding Matrix Indicator)和传输层数RI(Rank Indicator)并通知终端。终端设备在接下来的上行传输中的数据需要使用网络设备指定的预编码矩阵进行预编码，同时对于预编码后的数据按照SRI指示的SRS资源对应的空间滤波器映射到相应的天线端口上。不同的SRS会使用不同的空间滤波器传输，因此终端经过预编码的数据需要经过SRI指示的SRS所使用的空间滤波器进行滤波。通过这种方式可以支持上行数据从单层到满秩的传输。
目前，5G NR上行MIMO(Multiple InputMultiple Output，多输入多输出)系统中最大支持的天线端口数为4个，且仅支持双极化天线，因此仅有一种天线排布，其维度为(M,N,P)＝(1,2,2)，即一行两列的双极化天线对。通信系统定义了三种UE的相干传输类型，分别为所有天线全相干传输，部分天线相干传输以及天线非相干传输。因此上行传输的码 本设计需要支持对应的三种类型的码字，分别为所有天线全相干传输码字，部分天线相干传输码字以及天线非相干传输码字。在协议Rel-15中，上行支持最大4端口，且支持最大4层传输，因此对应的码本矩阵最大维度是4*4。
为了支持更高的与下行可比的上行传输速率，可考虑将MIMO上行传输每UE最大支持的天线端口数从4进行扩展(比如，扩展至8)，同时可支持单极化天线以及4层以上的传输，因此，在上行发送天线端口数量为多个且天线极化方向相同的情况下，需要考虑如何确定与终端设备发送上行信道的天线端口匹配的码本。
针对上述问题，本公开提出一种基于码本的上行信道发送方法及其装置。
下面结合附图对本公开所提供的基于码本的上行信道发送方法及其装置进行详细地介绍。
图2为本公开实施例提供的一种基于码本的上行信道发送方法的流程示意图。需要说明的是，本公开实施例的方法由终端设备执行。如图2所示，该基于码本的上行信道发送方法包括以下步骤：
步骤201，确定与终端设备发送上行信道的天线端口数匹配的码本。
其中，上行信道的天线端口为多个，多个天线端口的极化方向相同。
在本公开实施例中，终端设备可确定与自身天线端口数匹配的码本。其中，码本可包括至少一个码字或码字集合。
比如，该终端设备发送的上行信道的天线端口数为8，能够支持基于码本的最多8层的上行传输，该终端设备可以确定与自身天线端口数匹配的码本，即8端口码本。
其中，上行信道的天线端口为多个，多个天线端口的极化方向相同，比如，终端设备发送的上行信道的天线端口数为8个，8个天线端口的极化方向相同，如，8个天线端口的极化方向为垂直极化；又如，8个天线端口的极化方向为水平极化或其他极化方向。
需要了解的是，终端设备可能不会将各天线端口都校准至可以进行相干传输，NR系统定义了三种终端的天线相干传输能力：全相干：终端设备所有的天线端口都可以相干传输；部分相干：终端设备同一相干传输组内的天线端口可以相干传输，不同相干传输组的天线端口之间不能相干传输；非相干：终端设备没有天线端口可以相干传输。因此，在本公开实施例中，上行传输的码本可支持对应的三种类型的码字(码字矩阵)，终端设备可确定与自身天线端口数匹配的码本，该码本中可包括以下至少一种：全相干传输的码字集合；部分相干传输的码字集合以及非相干传输的码字集合。
应当理解的是，本公开中的码字可以指的是预编码矩阵，码本可以是一个或多个码字/预编码矩阵的合集。
步骤202，采用码本中的码字对上行信道进行预编码处理。
作为本公开实施例的一种可能的实现方式，终端设备可根据网络设备发送的指示信息，从码本中选择指示的码字对上行信道进行预编码处理。
比如，网络设备发送的指示信息可以包括传输预编码矩阵指示TPMI(TransmissionPrecoding Matrix Indicator)和/或探测参考信号资源指示SRI(Sounding Reference Signal(SRS)Resource Indicator)。
也就是，可选地，终端设备能够根据网络设备发送的TPMI从码本中确定对应的码字，也可以根据网络设备发送的TPMI和SRI从码本中确定对应的码字。进而，终端设备能够采用确定出的码字，对上行信道进行预编码处理，以完成上行信道的传输。
步骤203，向网络设备发送经过预编码处理后的上行数据信道。
进而，终端设备能够将预编码之后的数据映射到对应的天线端口上，向网络设备发送 经过预编码处理后的上行数据信道。
在本公开实施例中，该上行数据信道可以是PUSCH。
综上，通过确定与终端设备发送上行信道的天线端口数匹配的码本，上行信道的天线端口为多个，多个天线端口的极化方向相同；采用码本中的码字对上行信道进行预编码处理；向网络设备发送经过预编码处理后的上行数据信道，由此，在上行发送天线端口数量为多个且极化方向相同的情况下，可确定与终端设备发送上行信道的天线端口数匹配的码本，并向网络设备发送采用码本中的码字进行预编码处理后的上行数据信道，基于码本进行上行传输能够实现上行信道预编码的空间复用，有效提高了上行信道传输的速率，从而提高了通信效率。
本公开实施例提供了另一种基于码本的上行信道发送方法，图3为本公开实施例提供的另一种基于码本的上行信道发送方法的流程示意图，该方法可由终端设备执行，该基于码本的上行信道发送方法可以单独被执行，也可以结合本公开中的任一个实施例或是实施例中的可能的实现方式一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。
如图3所示，该基于码本的上行信道发送方法可以包括以下步骤：
步骤301，确定多个天线端口的维度信息和过采样因子。
在本公开实施例中，多个天线端口可具有多种维度信息，其中，每种维度信息可支持多组过采样因子(OversamplingFactor)。其中，每组过采样因子中可包括天线阵列中对应维度信息中第一维度的过采样系数O 1以及对应维度信息中第二维度的过采样系数O 2。
举例而言，以天线端口为8个为例，如图4(a)所示，该单阵面天线阵列同一极化方向上第一维度的天线端口数为8(N 1＝8)，同一极化方向上第二维度的天线端口数为1(N 2＝1)。或者，如图4(b)所示，该单阵面天线阵列同一极化方向上第一维度的天线端口数为4(N 1＝4)，同一极化方向上第二维度的天线端口数为2(N 2＝2)。8个天线端口的维度信息以及每种维度信息支持的多组过采样因子可如表1所示，表1指示了8天线端口的维度信息与支持的过采样因子的对应关系。
表1
Figure PCTCN2022122777-appb-000001
可以理解的是，表1中的每一个元素、每一条对应关系，都是独立存在的；这些元素、对应关系被示例性的列在同一张表格中，但是并不代表表格中的所有元素、对应关系必须根据表格1中所示的同时存在。其中每一个元素的值和每一对应关系，是不依赖于表1中任何其他元素值或对应关系。因此本领域内技术人员可以理解，该表1中的每一个元素的取值、每一条对应关系，各种都是一个独立的实施例。
步骤302，根据维度信息和过采样因子，基于DFT波束向量生成全相干传输的码字集合。
在本公开实施例中，根据维度信息和过采样因子，可确定各层码字对应的DFT波束向量，进而，根据各层码字对应的DFT波束向量，可确定各层的码字，根据各层的码字，生成全相干传输的码字集合。
综上，通过确定多个天线端口的维度信息和过采样因子，根据维度信息和过采样因子，基于DFT波束向量生成全相干传输的码字集合，由此，根据多个天线端口的维度信息和过采样因子，基于DFT波束向量可生成全相干传输的码字集合。
本公开实施例提供了另一种基于码本的上行信道发送方法，图5为本公开实施例提供的另一种基于码本的上行信道发送方法的流程示意图，该方法可由终端设备执行，该基于码本的上行信道发送方法可以单独被执行，也可以结合本公开中的任一个实施例或是实施例中的可能的实现方式一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。
如图5所示，该基于码本的上行信道发送方法可以包括以下步骤：
步骤501，确定多个天线端口的维度信息和过采样因子。
步骤502，确定第一指示信息和第二指示信息。
其中，第一指示信息和第二指示信息用于指示第一层码字对应的DFT波束。
在本公开实施例中，可根据多个天线端口的维度信息和过采样因子确定第一指示信息和第二指示信息。其中，第一指示信息和第二指示信息用于指示第一层码字对应的DFT波束。
在本公开实施例中，DFT波束向量与码本波束向量相同，计算公式可如下：
Figure PCTCN2022122777-appb-000002
Figure PCTCN2022122777-appb-000003
需要说明的是，第一层码字对应的DFT波束(波束向量)为v l,m，其中，l可由第一指示信息i 1,1指示，m可由第二指示信息i 1,2指示，其中，i 1,1＝0,1,...,N 1O 1-1，i 1,2＝0,1,...,N 2O 2-1，N 1表示同一极化方向上第一维度的天线端口数，N 2表示同一极化方向上第二维度的天线端口数，O 1，O 2表示多个天线端口的维度(N 1,N 2)支持的一组过采样因子。
步骤503，确定第三指示信息。
其中，第三指示信息用于指示维度信息下其他层码字的波束索引相对于第一层码字的波束索引的偏移量。
比如，天线端口的维度信息下其他层码字的波束索引相对于第一层码字的波束索引的偏移量，即其他层码字选取的波束向量为
Figure PCTCN2022122777-appb-000004
其中，l (k)由第一层码字的波束索引i 1,1+k 1指示，m (k)由第一层码字的波束索引i 1,2+k 2指示，其中，k表示码字的层数，k 1和k 2为其他层码字的波束索引相对于第一层码字的波束索引的偏移量，k 1和k 2可由第三指示信息i 4指示。其中，需要说明的是，k 1的最大值可取(N 1-1)O 1，k 2的最大值可取(N 2-1)O 2，以天线端口的数量为8个为例，不同天线维度下(N 1，N 2)第三指示信息(i 4)指示的偏移量k 1和k 2的最大取值可如表2所示，表2指示了8天线端口的天线维度与偏移量的最大取值的对应关系。
表2
Figure PCTCN2022122777-appb-000005
可以理解的是，表2中的每一个元素、每一条对应关系，都是独立存在的；这些元素、对应关系被示例性的列在同一张表格中，但是并不代表表格中的所有元素、对应关系必须根据表格2中所示的同时存在。其中每一个元素的值和每一对应关系，是不依赖于表2中任何其他元素值或对应关系。因此本领域内技术人员可以理解，该表2中的每一个元素的取值、每一条对应关系，各种都是一个独立的实施例。
步骤504，根据第三指示信息，确定其他层码字对应的DFT波束。
在本公开实施例中，可根据第三指示信息所指示的维度信息下其他层码字的波束索引相对于第一层码字的波束索引的偏移量，确定其他层码字对应的DFT波束。
步骤505，根据第一层码字和/或其他层码字，确定全相干传输的码字集合。
比如，令
Figure PCTCN2022122777-appb-000006
表示第k层码字，则8端口L层码字
Figure PCTCN2022122777-appb-000007
构建为
Figure PCTCN2022122777-appb-000008
在本公开实施例中，步骤501可以采用本公开的各实施例中的任一种方式实现，本公开实施例并不对此作出限定，也不再赘述。
综上，通过确定多个天线端口的维度信息和过采样因子；确定第一指示信息和第二指示信息，其中，第一指示信息和第二指示信息用于指示第一层码字对应的DFT波束，确定第三指示信息，其中，第三指示信息用于指示维度信息下其他层码字的波束索引相对于第一层码字的波束索引的偏移量，由此，通过多个天线端口的维度信息和过采样因子，确定第一指示信息、第二指示信息以及第三指示信息，并通过第一指示信息、第二指示信息以及第三指示信息确定各层码字对应的波束向量，根据各层码字对应的波束向量可确定各层码字，进而，根据各层码字可生成全相干传输的码字集合。
本公开实施例提供了另一种基于码本的上行信道发送方法，图6为本公开实施例提供的另一种基于码本的上行信道发送方法的流程示意图，该方法可由终端设备执行，该基于码本的上行信道发送方法可以单独被执行，也可以结合本公开中的任一个实施例或是实施例中的可能的实现方式一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。
如图6所示，该基于码本的上行信道发送方法可以包括以下步骤：
步骤601，将多个天线端口分成多个天线端口组。
比如，当8个天线端口部分相干传输时，可将8个天线端口分成两个天线端口组或者4个天线端口组。
步骤602，根据每个天线端口组中天线端口的个数，以及多个天线端口组之间的天线相关性，确定部分相干传输的码字集合。
在本公开实施例中，不同的天线端口组以及多个天线端口组之间的天线相关性，对应不同的方式确定部分相干传输的码字集合。
比如，天线端口组为2个，第一天线端口组为端口{0,1,2,3}，第二天线端口组为{4,5,6,7}，可参照表2设置4端口单极化码字，4端口单极化码字的各天线维度下(N 1，N 2)第三指示信息(i 4)指示的偏移量k 1和k 2的最大取值可如表3所示，表3指示了4端口单极化码本的各天线维度与偏移量的最大取值的对应关系。
表3
Figure PCTCN2022122777-appb-000009
可以理解的是，表3中的每一个元素、每一条对应关系，都是独立存在的；这些元素、对应关系被示例性的列在同一张表格中，但是并不代表表格中的所有元素、对应关系必须根据表格3中所示的同时存在。其中每一个元素的值和每一对应关系，是不依赖于表3中任何其他元素值或对应关系。因此本领域内技术人员可以理解，该表3中的每一个元素的取值、每一条对应关系，各种都是一个独立的实施例。
需要说明的是，4端口L层码字
Figure PCTCN2022122777-appb-000010
可构建为
Figure PCTCN2022122777-appb-000011
因此，8端口8层部分相干码字可设计为
Figure PCTCN2022122777-appb-000012
其中
Figure PCTCN2022122777-appb-000013
表示共相位系数，且
Figure PCTCN2022122777-appb-000014
当层数小于8层时，即从8层码字中选取任意L列，且从前4层选取的列数与后4层选取的列数的差值的绝对值小于等于1。比如，从8层码字中选取6列，前4层选取的列数可为3列，后4层选取的列数可为3列，前4层选取的列数与后4层选取的列数的差值的绝对值等于0。
又比如，天线端口组为4个，可考虑两种情况，第一种情况是，2个端口组相干，另外2个端口组相干，第二种情况是，其中3个端口组相干，另外1个端口组相干。
第一种情况：假设第1端口组和第3端口组相干，第2端口组和第4端口组相干，部分相干传输的码字集合可如下所示：
Figure PCTCN2022122777-appb-000015
或者
Figure PCTCN2022122777-appb-000016
其中
Figure PCTCN2022122777-appb-000017
表示
Figure PCTCN2022122777-appb-000018
的第a行至第b行；
假设第1端口组和第2端口组相干，第3端口组和第4端口组相干，部分相干传输的码字集合可如下所示：
Figure PCTCN2022122777-appb-000019
或者
Figure PCTCN2022122777-appb-000020
其中
Figure PCTCN2022122777-appb-000021
表示
Figure PCTCN2022122777-appb-000022
的第a行至第b行。
第二种情况：假设第1端口组、第2端口组和第3端口组相干，部分相干传输的码字集合可如下所示：
Figure PCTCN2022122777-appb-000023
综上，将多个天线端口分成多个天线端口组；根据每个天线端口组中天线端口的个数，以及多个天线端口组之间的天线相关性，确定部分相干传输的码字集合，由此，根据每个天线端口组中天线端口的个数，以及多个天线端口组之间的天线相关性，可确定部分相干传输的码字集合。
本公开实施例提供了另一种基于码本的上行信道发送方法，图7为本公开实施例提供的另一种基于码本的上行信道发送方法的流程示意图，该方法可由终端设备执行，该基于码本的上行信道发送方法可以单独被执行，也可以结合本公开中的任一个实施例或是实施例中的可能的实现方式一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。如图7所示，该基于码本的上行信道发送方法可以包括以下步骤：
步骤701，根据与天线端口数对应的天线选择向量，确定非相干传输的码字集合。
其中，天线选择向量用于将信号映射至对应的天线端口。比如，8天线端口1层码字，如，[1 0 0 0 0 0 0 0] T或者[0 0 1 0 0 0 0 0] T，其中，T表示转置矩阵，每层只在对应的一个天线端口进行映射。
举例而言，当天线端口数为8时，与双极化码字相同，非相干码字可采用8*1的天线选择向量，当层数为L时，码字的数量为
Figure PCTCN2022122777-appb-000024
个。例如，当层数为1时，非相干码字可如表4所示，表4指示了8天线端口1层单极化非相干码字。
表4
Figure PCTCN2022122777-appb-000025
可以理解的是，表4中的每一个元素、每一条对应关系，都是独立存在的；这些元素、对应关系被示例性的列在同一张表格中，但是并不代表表格中的所有元素、对应关系必须根据表格4中所示的同时存在。其中每一个元素的值和每一对应关系，是不依赖于表4中任何其他元素值或对应关系。因此本领域内技术人员可以理解，该表4中的每一个元素的取值、每一条对应关系，各种都是一个独立的实施例。
其中，需要说明的是，表4中码字设计未进行能量归一化，在对码字进行能量归一化时，可乘以设定的能量归一化因子。
可选的，能量归一化因子可设置为矩阵非零元数量的倒数的算数平方根。
综上，通过根据与天线端口数对应的天线选择向量，确定非相干传输的码字集合，由此，可确定非相干传输的码字集合。
本公开实施例的基于码本的上行信道发送方法，通过确定与终端设备发送上行信道的天线端口数匹配的码本，上行信道的天线端口为多个，多个天线端口的极化方向相同；采用码本中的码字对上行信道进行预编码处理；向网络设备发送经过预编码处理后的上行数据信道，由此，在上行发送天线端口数量为多个且极化方向相同的情况下，可确定与终端设备发送上行信道的天线端口数匹配的码本，并向网络设备发送采用码本中的码字进行预编码处理后的上行数据信道，基于码本进行上行传输能够实现上行信道预编码的空间复用，有效提高了上行信道传输的速率，从而提高了通信效率。
本公开实施例提供了另一种基于码本的上行信道发送方法，图8为本公开实施例提供的另一种基于码本的上行信道发送方法的流程示意图，该方法可由网络设备执行，该基于码本的上行信道发送方法可以单独被执行，也可以结合本公开中的任一个实施例或是实施例中的可能的实现方式一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。如图8所示，该基于码本的上行信道发送方法可以包括以下步骤：
步骤801，接收终端设备发送的经过码本中的码字进行预编码处理后的上行数据信道。
其中，码本是与终端设备发送上行信道的天线端口数匹配的码本，上行信道的天线端口为多个，多个天线端口的极化方向相同。
在本公开实施例中，终端设备可确定与自身天线端口数匹配的码本，其中，上行信道的天线端口为多个，多个天线端口的极化方向相同，终端设备可根据网络设备发送的指示信息，从码本中选择指示的码字对上行信道进行预编码处理，并能够将预编码之后的数据映射到对应的天线端口上，向网络设备发送经过预编码处理后的上行数据信道，从而，网络设备可接收终端设备发送的经过码本中的码字进行预编码处理后的上行数据信道。
综上，通过接收终端设备发送的经过码本中的码字进行预编码处理后的上行数据信 道，由此，在上行发送天线端口数量为多个且极化方向相同的情况下，终端设备可确定与终端设备发送上行信道的天线端口数匹配的码本，并向网络设备发送采用码本中的码字进行预编码处理后的上行数据信道，网络设备可接收终端设备发送的经过码本中的码字进行预编码处理后的上行数据信道，基于码本进行上行传输能够实现上行信道预编码的空间复用，有效提高了上行信道传输的速率，从而提高了通信效率。
在一些实施方式中，码本包括以下至少一种：全相干传输的码字集合；部分相干传输的码字集合；非相干传输的码字集合。
作为本公开实施例的一种可能的实现方式，全相干传输的码字集合，是根据所述多个天线端口的维度信息和过采样因子，基于DFT波束向量生成的。
作为本公开实施例的一种可能的实现方式，全相干传输的码字集合，是根据第一层码字和/或其他层码字确定的，第一层码字是根据第一指示信息和第二指示信息确定的，所述第一指示信息和第二指示信息用于指示第一层码字对应的DFT波束；所述其他层码字对应的DFT波束是根据第三指示信息确定的，所述第三指示信息用于指示所述维度信息下其他层码字的波束索引相对于所述第一层码字的波束索引的偏移量。
作为本公开实施例的一种可能的实现方式，多个天线端口的至少一种维度信息中每种维度信息支持多组过采样因子。
作为本公开实施例的一种可能的实现方式，部分相干传输的码字集合，是根据所述多个天线端口分成的多个天线端口组中，每个天线端口组中天线端口的个数，以及所述多个天线端口组之间的天线相关性确定的。
作为本公开实施例的一种可能的实现方式，非相干传输的码字集合，是根据与所述天线端口数对应的天线选择向量确定的。
本公开实施例的基于码本的上行信道发送方法，通过接收终端设备发送的经过码本中的码字进行预编码处理后的上行数据信道，由此，在上行发送天线端口数量为多个且极化方向相同的情况下，终端设备可确定与终端设备发送上行信道的天线端口数匹配的码本，并向网络设备发送采用码本中的码字进行预编码处理后的上行数据信道，网络设备可接收终端设备发送的经过码本中的码字进行预编码处理后的上行数据信道，基于码本进行上行传输能够实现上行信道预编码的空间复用，有效提高了上行信道传输的速率，从而提高了通信效率。
上述本公开提供的实施例中，分别从网络设备、终端设备的角度对本公开实施例提供的方法进行了介绍。为了实现上述本公开实施例提供的方法中的各功能，网络设备和终端设备可以包括硬件结构、软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能可以以硬件结构、软件模块、或者硬件结构加软件模块的方式来执行。
与上述图2至图7实施例提供的基于码本的上行信道发送方法相对应，本公开还提供一种基于码本的上行信道发送装置，由于本公开实施例提供的基于码本的上行信道发送装置与上述几种实施例提供的方法相对应，因此在基于码本的上行信道发送方法的实施方式也适用于本实施例提供的基于码本的上行信道发送装置，在本实施例中不再详细描述。
图9为本公开实施例提供的一种基于码本的上行信道发送装置的结构示意图，所述装置应用于终端设备。
如图9所示，该基于码本的上行信道发送装置900包括：处理单元910、收发单元920，其中：
处理单元910，用于确定与终端设备发送上行信道的天线端口数匹配的码本，上行信 道的天线端口为多个，多个天线端口的极化方向相同；处理单元910，还用于采用码本中的码字对上行信道进行预编码处理；收发单元920，用于向网络设备发送经过预编码处理后的上行数据信道。
作为本公开实施例的一种可能的实现方式，码本包括以下至少一种：全相干传输的码字集合；部分相干传输的码字集合；非相干传输的码字集合。
作为本公开实施例的一种可能的实现方式，处理单元910，还用于确定所述多个天线端口的维度信息和过采样因子；根据所述维度信息和过采样因子，基于DFT波束向量生成所述全相干传输的码字集合。
作为本公开实施例的一种可能的实现方式，处理单元910，还用于确定第一指示信息和第二指示信息，第一指示信息和第二指示信息用于指示第一层码字对应的DFT波束；确定第三指示信息，第三指示信息用于指示维度信息下其他层码字的波束索引相对于第一层码字的波束索引的偏移量；根据第三指示信息，确定其他层码字对应的DFT波束；根据第一层码字和/或其他层码字，确定全相干传输的码字集合。
作为本公开实施例的一种可能的实现方式，多个天线端口的至少一种维度信息中每种维度信息支持多组过采样因子。
作为本公开实施例的一种可能的实现方式，处理单元910，还用于将多个天线端口分成多个天线端口组；根据每个天线端口组中天线端口的个数，以及多个天线端口组之间的天线相关性，确定部分相干传输的码字集合。
作为本公开实施例的一种可能的实现方式，处理单元910，还用于根据与天线端口数对应的天线选择向量，确定非相干传输的码字集合。
本公开实施例的基于码本的上行信道发送装置，通过确定与终端设备发送上行信道的天线端口数匹配的码本，上行信道的天线端口为多个，多个天线端口的极化方向相同；采用码本中的码字对上行信道进行预编码处理；向网络设备发送经过预编码处理后的上行数据信道，由此，在上行发送天线端口数量为多个且极化方向相同的情况下，可确定与终端设备发送上行信道的天线端口数匹配的码本，并向网络设备发送采用码本中的码字进行预编码处理后的上行数据信道，基于码本进行上行传输能够实现上行信道预编码的空间复用，有效提高了上行信道传输的速率，从而提高了通信效率。
与上述图8实施例提供的基于码本的上行信道发送方法相对应，本公开还提供一种基于码本的上行信道发送装置，由于本公开实施例提供的基于码本的上行信道发送装置与上述几种实施例提供的方法相对应，因此在基于码本的上行信道发送方法的实施方式也适用于本实施例提供的基于码本的上行信道发送装置，在本实施例中不再详细描述。
图10为本公开实施例提供的一种基于码本的上行信道发送装置的结构示意图，所述装置应用于网络设备。
如图10所示，该基于码本的上行信道发送装置1000包括：收发单元1010，其中，收发单元，用于接收终端设备发送的经过码本中的码字进行预编码处理后的上行数据信道；码本是与终端设备发送上行信道的天线端口数匹配的码本，上行信道的天线端口为多个，多个天线端口的极化方向相同。
作为本公开实施例的一种可能的实现方式，码本包括以下至少一种：全相干传输的码字集合；部分相干传输的码字集合；非相干传输的码字集合。
作为本公开实施例的一种可能的实现方式，全相干传输的码字集合，是根据所述多个天线端口的维度信息和过采样因子，基于DFT波束向量生成的。
作为本公开实施例的一种可能的实现方式，全相干传输的码字集合，是根据第一层码 字和/或其他层码字确定的；所述第一层码字是根据第一指示信息和第二指示信息确定的，所述第一指示信息和第二指示信息用于指示第一层码字对应的DFT波束；所述其他层码字对应的DFT波束是根据第三指示信息确定的，所述第三指示信息用于指示所述维度信息下其他层码字的波束索引相对于所述第一层码字的波束索引的偏移量。
作为本公开实施例的一种可能的实现方式，多个天线端口的至少一种维度信息中每种维度信息支持多组过采样因子。
作为本公开实施例的一种可能的实现方式，部分相干传输的码字集合，是根据所述多个天线端口分成的多个天线端口组中，每个天线端口组中天线端口的个数，以及所述多个天线端口组之间的天线相关性确定的。
作为本公开实施例的一种可能的实现方式，非相干传输的码字集合，是根据与所述天线端口数对应的天线选择向量确定的。
本公开实施例的基于码本的上行信道发送装置，通过接收终端设备发送的经过码本中的码字进行预编码处理后的上行数据信道，由此，在上行发送天线端口数量为多个且极化方向相同的情况下，终端设备可确定与终端设备发送上行信道的天线端口数匹配的码本，并向网络设备发送采用码本中的码字进行预编码处理后的上行数据信道，网络设备可接收终端设备发送的经过码本中的码字进行预编码处理后的上行数据信道，基于码本进行上行传输能够实现上行信道预编码的空间复用，有效提高了上行信道传输的速率，从而提高了通信效率。
请参见图11，图11是本公开实施例提供的一种通信装置的结构示意图。通信装置1100可以是网络设备，也可以是终端设备，也可以是支持网络设备实现上述方法的芯片、芯片系统、或处理器等，还可以是支持终端设备实现上述方法的芯片、芯片系统、或处理器等。该装置可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。
通信装置1100可以包括一个或多个处理器1101。处理器1101可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对基于码本的上行信道发送装置(如，基站、基带芯片，终端设备、终端设备芯片，DU或CU等)进行控制，执行计算机程序，处理计算机程序的数据。
可选的，通信装置1100中还可以包括一个或多个存储器1102，其上可以存有计算机程序1103，处理器1101执行计算机程序1103，以使得通信装置1100执行上述方法实施例中描述的方法。计算机程序1103可能固化在处理器1101中，该种情况下，处理器1101可能由硬件实现。
可选的，存储器1102中还可以存储有数据。基于码本的上行信道发送装置1000和存储器1102可以单独设置，也可以集成在一起。
可选的，通信装置1100还可以包括收发器1105、天线1106。收发器1105可以称为收发单元、收发机、或收发电路等，用于实现收发功能。收发器1105可以包括接收器和发送器，接收器可以称为接收机或接收电路等，用于实现接收功能；发送器可以称为发送机或发送电路等，用于实现发送功能。
可选的，通信装置1100中还可以包括一个或多个接口电路1107。接口电路1107用于接收代码指令并传输至处理器1101。处理器1101运行代码指令以使通信装置1100执行上述方法实施例中描述的方法。
在一种实现方式中，处理器1101中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路，或者是接口，或者是接口电路。用于实现接收和发送功能的收 发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写，或者，上述收发电路、接口或接口电路可以用于信号的传输或传递。
在一种实现方式中，通信装置1100可以包括电路，电路可以实现前述方法实施例中发送或接收或者通信的功能。本公开中描述的处理器和收发器可实现在集成电路(IntegratedCircuit，IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(Application Specific Integrated Circuit，ASIC)、印刷电路板(Printed Circuit Board，PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(Complementary Metal Oxide Semiconductor，CMOS)、N型金属氧化物半导体(NMetal-Oxide-Semiconductor，NMOS)、P型金属氧化物半导体(Positive Channel Metal Oxide Semiconductor，PMOS)、双极结型晶体管(Bipolar Junction Transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的通信装置可以是网络设备或者终端设备，但本公开中描述的通信装置的范围并不限于此，而且通信装置的结构可以不受图9-图10的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如通信装置可以是：
(1)独立的集成电路IC，或芯片，或，芯片系统或子系统；
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据，计算机程序的存储部件；
(3)ASIC，例如调制解调器(Modem)；
(4)可嵌入在其他设备内的模块；
(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等；
(6)其他等等。
对于通信装置可以是芯片或芯片系统的情况，可参见图12所示的芯片的结构示意图。图12所示的芯片包括处理器1201和接口1202。其中，处理器1201的数量可以是一个或多个，接口1202的数量可以是多个。
对于芯片用于实现本公开实施例中网络设备的功能的情况：
接口1202，用于代码指令并传输至处理器；
处理器1201，用于运行代码指令以执行如图2，图3，图5、图6和图7的方法。
对于芯片用于实现本公开实施例中终端设备的功能的情况：
接口1202，用于代码指令并传输至处理器；
处理器1201，用于运行代码指令以执行如图8的方法。
可选的，芯片还包括存储器1203，存储器1203用于存储必要的计算机程序和数据。
本领域技术人员还可以了解到本公开实施例列出的各种说明性逻辑块(Illustrative Logical Block)和步骤(Step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现的功能，但这种实现不应被理解为超出本公开实施例保护的范围。
本公开实施例还提供一种通信系统，该系统包括前述图9-图10实施例中作为终端设备的基于码本的上行信道发送装置和作为网络设备的基于码本的上行信道发送装置，或者，该系统包括前述图11实施例中作为终端设备的通信装置和作为网络设备的通信装置。
本公开还提供一种可读存储介质，其上存储有指令，该指令被计算机执行时实现上述 任一方法实施例的功能。
本公开还提供一种计算机程序产品，该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。
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。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。计算机程序产品包括一个或多个计算机程序。在计算机上加载和执行计算机程序时，全部或部分地产生按照本公开实施例的流程或功能。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。计算机程序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，计算机程序可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(Digital Subscriber Line，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。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用介质集成的服务器、数据中心等数据存储设备。可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(Digital Video Disc，DVD))、或者半导体介质(例如，固态硬盘(Solid State Disk，SSD))等。
本领域普通技术人员可以理解：本公开中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本公开实施例的范围，也表示先后顺序。
本公开中的至少一个还可以描述为一个或多个，多个可以是两个、三个、四个或者更多个，本公开不做限制。在本公开实施例中，对于一种技术特征，通过“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”等区分该种技术特征中的技术特征，该“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”描述的技术特征间无先后顺序或者大小顺序。
本公开中各表所示的对应关系可以被配置，也可以是预定义的。各表中的信息的取值仅仅是举例，可以配置为其他值，本公开并不限定。在配置信息与各参数的对应关系时，并不一定要求必须配置各表中示意出的所有对应关系。例如，本公开中的表格中，某些行示出的对应关系也可以不配置。又例如，可以基于上述表格做适当的变形调整，例如，拆分，合并等等。上述各表中标题示出参数的名称也可以采用通信装置可理解的其他名称，其参数的取值或表示方式也可以通信装置可理解的其他取值或表示方式。上述各表在实现时，也可以采用其他的数据结构，例如可以采用数组、队列、容器、栈、线性表、指针、链表、树、图、结构体、类、堆、散列表或哈希表等。
本公开中的预定义可以理解为定义、预先定义、存储、预存储、预协商、预配置、固化、或预烧制。
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公开的范围。
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。
应当理解，可以使用上面所示的各种形式的流程，重新排序、增加或删除步骤。例如，本公开实施例中记载的各步骤可以并行地执行也可以顺序地执行也可以不同的次序执行，只要能够实现本发明公开的技术方案所期望的结果，本文在此不进行限制。
上述具体实施方式，并不构成对本发明保护范围的限制。本领域技术人员应该明白的 是，根据设计要求和其他因素，可以进行各种修改、组合、子组合和替代。任何在本发明的精神和原则之内所作的修改、等同替换和改进等，均应包含在本发明保护范围之内。

Claims (20)

  1. 一种基于码本的上行信道发送方法，其特征在于，所述方法由终端设备执行，所述方法包括：
    确定与所述终端设备发送上行信道的天线端口数匹配的码本，所述上行信道的天线端口为多个，所述多个天线端口的极化方向相同；
    采用所述码本中的码字对所述上行信道进行预编码处理；
    向网络设备发送经过预编码处理后的上行数据信道。
  2. 根据权利要求1所述的方法，其特征在于，所述码本包括以下至少一种：
    全相干传输的码字集合；
    部分相干传输的码字集合；
    非相干传输的码字集合。
  3. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    确定所述多个天线端口的维度信息和过采样因子；
    根据所述维度信息和过采样因子，基于DFT波束向量生成所述全相干传输的码字集合。
  4. 根据权利要求3所述的方法，其特征在于，所述根据所述维度信息和过采样因子，基于DFT波束向量生成全相干传输的码字集合，包括：
    确定第一指示信息和第二指示信息，所述第一指示信息和第二指示信息用于指示第一层码字对应的DFT波束；
    确定第三指示信息，所述第三指示信息用于指示所述维度信息下其他层码字的波束索引相对于所述第一层码字的波束索引的偏移量；
    根据所述第三指示信息，确定所述其他层码字对应的DFT波束；
    根据所述第一层码字和/或其他层码字，确定所述全相干传输的码字集合。
  5. 根据权利要求3或4所述的方法，其特征在于，所述多个天线端口的至少一种维度信息中每种维度信息支持多组过采样因子。
  6. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    将所述多个天线端口分成多个天线端口组；
    根据每个天线端口组中天线端口的个数，以及所述多个天线端口组之间的天线相关性，确定所述部分相干传输的码字集合。
  7. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    根据与所述天线端口数对应的天线选择向量，确定所述非相干传输的码字集合。
  8. 一种基于码本的上行信道发送方法，其特征在于，所述方法由网络设备执行，所述方法包括：
    接收终端设备发送的经过码本中的码字进行预编码处理后的上行数据信道；
    所述码本是与所述终端设备发送上行信道的天线端口数匹配的码本，所述上行信道的天线端口为多个，所述多个天线端口的极化方向相同。
  9. 根据权利要求8所述的方法，其特征在于，所述码本包括以下至少一种：
    全相干传输的码字集合；
    部分相干传输的码字集合；
    非相干传输的码字集合。
  10. 根据权利要求9所述的方法，其特征在于，
    所述全相干传输的码字集合，是根据所述多个天线端口的维度信息和过采样因子，基于DFT波束向量生成的。
  11. 根据权利要求10所述的方法，其特征在于，
    所述全相干传输的码字集合，是根据第一层码字和/或其他层码字确定的；
    所述第一层码字是根据第一指示信息和第二指示信息确定的，所述第一指示信息和第二指示信息用于指示第一层码字对应的DFT波束；
    所述其他层码字对应的DFT波束是根据第三指示信息确定的，所述第三指示信息用于指示所述维度信息下其他层码字的波束索引相对于所述第一层码字的波束索引的偏移量。
  12. 根据权利要求10或11所述的方法，其特征在于，所述多个天线端口的至少一种维度信息中每种维度信息支持多组过采样因子。
  13. 根据权利要求9所述的方法，其特征在于，
    所述部分相干传输的码字集合，是根据所述多个天线端口分成的多个天线端口组中，每个天线端口组中天线端口的个数，以及所述多个天线端口组之间的天线相关性确定的。
  14. 根据权利要求9所述的方法，其特征在于，
    所述非相干传输的码字集合，是根据与所述天线端口数对应的天线选择向量确定的。
  15. 一种基于码本的上行信道发送装置，其特征在于，所述装置应用于终端设备，所述装置包括：
    处理单元，用于确定与所述终端设备发送上行信道的天线端口数匹配的码本，所述上行信道的天线端口为多个，所述多个天线端口的极化方向相同；
    所述处理单元，还用于采用所述码本中的码字对所述上行信道进行预编码处理；
    收发单元，用于向网络设备发送经过预编码处理后的上行数据信道。
  16. 一种基于码本的上行信道发送装置，其特征在于，所述装置应用于网络设备，所述装置包括：
    收发单元，用于接收终端设备发送的经过码本中的码字进行预编码处理后的上行数据信道；
    所述码本是与所述终端设备发送上行信道的天线端口数匹配的码本，所述上行信道的天线端口为多个，所述多个天线端口的极化方向相同。
  17. 一种通信装置，其特征在于，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如权利要求1至7中任一项所述的方法，或者执行如权利要求8至14中任一项所述的方法。
  18. 一种通信装置，其特征在于，包括：处理器和接口电路；
    所述接口电路，用于接收代码指令并传输至所述处理器；
    所述处理器，用于运行所述代码指令以执行如权利要求1至7中任一项所述的方法，或者执行如权利要求8至14中任一项所述的方法。
  19. 一种计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如权利要求1至7中任一项所述的方法被实现，或者使如权利要求8至14中任一项所述的方法被实现。
  20. 一种通信系统，其特征在于，所述通信系统包括：
    终端设备，用于执行如权利要求1至7中任一项所述的方法；
    网络设备，用于执行如权利要求8至14中任一项所述的方法。
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CN109845154A (zh) * 2017-01-03 2019-06-04 华为技术有限公司 通信方法、基站和终端设备
CN112543083A (zh) * 2019-09-20 2021-03-23 华为技术有限公司 一种上行数据传输方法及装置
CN114070366A (zh) * 2020-07-30 2022-02-18 华为技术有限公司 一种通信方法及装置
CN114598366A (zh) * 2020-12-04 2022-06-07 华为技术有限公司 一种通信方法、装置、芯片、存储介质及程序产品

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CN109845154A (zh) * 2017-01-03 2019-06-04 华为技术有限公司 通信方法、基站和终端设备
CN112543083A (zh) * 2019-09-20 2021-03-23 华为技术有限公司 一种上行数据传输方法及装置
CN114070366A (zh) * 2020-07-30 2022-02-18 华为技术有限公司 一种通信方法及装置
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