WO2023201501A1 - Methods for determining partial-antenna coherent transmission code word of mimo uplink transmission, and apparatus therefor - Google Patents

Methods for determining partial-antenna coherent transmission code word of mimo uplink transmission, and apparatus therefor Download PDF

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Publication number
WO2023201501A1
WO2023201501A1 PCT/CN2022/087519 CN2022087519W WO2023201501A1 WO 2023201501 A1 WO2023201501 A1 WO 2023201501A1 CN 2022087519 W CN2022087519 W CN 2022087519W WO 2023201501 A1 WO2023201501 A1 WO 2023201501A1
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Prior art keywords
antenna port
codeword
antenna
layer
port group
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PCT/CN2022/087519
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French (fr)
Chinese (zh)
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张振宇
高雪媛
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北京小米移动软件有限公司
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Priority to CN202280001159.8A priority Critical patent/CN117256192A/en
Priority to PCT/CN2022/087519 priority patent/WO2023201501A1/en
Publication of WO2023201501A1 publication Critical patent/WO2023201501A1/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

Definitions

  • the present application relates to the field of communication technology, and in particular to a method and device for determining coherent transmission codewords for partial antennas in MIMO uplink transmission.
  • Precoding technology in Multiple Input Multiple Output (MIMO) systems can effectively reduce interference and system overhead, and improve system capacity. It is an extremely important key technology in MIMO systems.
  • MIMO uplink systems based on codebook transmission Codebook design is also an important part of precoding technology.
  • the maximum number of antenna ports supported by the existing MIMO uplink transmission part antenna coherent transmission codeword is 4, that is, the existing MIMO uplink part antenna coherent transmission codeword only supports transmission of a maximum of 4 antenna ports and a maximum of 4 layers.
  • the transmission requirements of the enhanced antenna port cannot be met.
  • the embodiments of this application provide a method and device for determining partial antenna coherent transmission codewords for MIMO uplink transmission.
  • Partial antenna coherent transmission codewords are designed through fully coherent transmission codewords for all antennas, which can be applied to MIMO uplink transmission from layer 1 to layer 8 of 8 antenna ports.
  • embodiments of the present application provide a method for determining coherent transmission codewords for some MIMO uplink transmission antennas.
  • the method includes:
  • the N is a positive integer power of 2
  • the L is less than or equal to the N.
  • partial antenna coherent transmission codewords are designed using fully coherent transmission codewords for all antennas, which can be applied to partial antenna coherent transmission codeword design from layer 1 to layer 8 for MIMO uplink transmission of 8 antenna ports.
  • embodiments of the present application provide another method for determining coherent transmission codewords for partial antennas in MIMO uplink transmission.
  • the method includes:
  • the N is a positive integer power of 2
  • the L is less than or equal to the N.
  • partial antenna coherent transmission codewords are designed using fully coherent transmission codewords for all antennas, which can be applied to partial antenna coherent transmission codeword design from layer 1 to layer 8 for MIMO uplink transmission of 8 antenna ports.
  • embodiments of the present application provide a communication device that has some or all of the functions of the terminal device in implementing the method described in the first aspect.
  • the functions of the communication device may have some or all of the functions in this application.
  • the functions in the embodiments may also be used to independently implement any of the embodiments in this application.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform corresponding functions in the above method.
  • the transceiver module is used to support communication between the communication device and other devices.
  • the communication device may also include a storage module coupled to the transceiver module and the processing module, which stores computer programs and data necessary for the communication device.
  • the processing module may be a processor
  • the transceiver module may be a transceiver or a communication interface
  • the storage module may be a memory
  • embodiments of the present application provide another communication device that has some or all of the functions of the network device in the method example described in the second aspect.
  • the functions of the communication device may have some of the functions in this application.
  • the functions in all embodiments may also be used to implement any one embodiment of the present application independently.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform corresponding functions in the above method.
  • the transceiver module is used to support communication between the communication device and other devices.
  • the communication device may further include a storage module coupled to the transceiver module and the processing module, which stores necessary computer programs and data for the communication device.
  • inventions of the present application provide a communication device.
  • the communication device includes a processor.
  • the processor calls a computer program in a memory, it executes the method described in the first aspect.
  • inventions of the present application provide a communication device.
  • the communication device includes a processor.
  • the processor calls a computer program in a memory, it executes the method described in the second aspect.
  • inventions of the present application provide a communication device.
  • the communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the first aspect above.
  • inventions of the present application provide a communication device.
  • the communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the second aspect above.
  • inventions of the present application provide a communication device.
  • the device includes a processor and an interface circuit.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor is used to run the code instructions to cause the The device performs the method described in the first aspect.
  • inventions of the present application provide a communication device.
  • the device includes a processor and an interface circuit.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor is used to run the code instructions to cause the The device performs the method described in the second aspect above.
  • embodiments of the present application provide a communication system, which includes the communication device described in the third aspect and the communication device described in the fourth aspect, or the system includes the communication device described in the fifth aspect and The communication device according to the sixth aspect, or the system includes the communication device according to the seventh aspect and the communication device according to the eighth aspect, or the system includes the communication device according to the ninth aspect and the communication device according to the tenth aspect. the above-mentioned communication device.
  • embodiments of the present invention provide a computer-readable storage medium for storing instructions used by the above-mentioned terminal equipment. When the instructions are executed, the terminal equipment is caused to execute the above-mentioned first aspect. method.
  • embodiments of the present invention provide a readable storage medium for storing instructions used by the above-mentioned network device. When the instructions are executed, the network device is caused to perform the method described in the second aspect. .
  • the present application also provides a computer program product including a computer program, which when run on a computer causes the computer to execute the method described in the first aspect.
  • the present application also provides a computer program product including a computer program, which, when run on a computer, causes the computer to execute the method described in the second aspect.
  • the present application provides a chip system, which includes at least one processor and an interface for supporting the terminal device to implement the functions involved in the first aspect, for example, determining or processing the data involved in the above method. and information.
  • the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the terminal device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • this application provides a chip system, which includes at least one processor and an interface for supporting network equipment to implement the functions involved in the second aspect, for example, determining or processing the data involved in the above method. and information.
  • the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the network device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the present application provides a computer program that, when run on a computer, causes the computer to execute the method described in the first aspect.
  • this application provides a computer program that, when run on a computer, causes the computer to execute the method described in the second aspect.
  • Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present application.
  • Figure 2 is a schematic flowchart of a method for determining coherent transmission codewords for some antennas in MIMO uplink transmission provided by an embodiment of the present application;
  • Figure 3 is a schematic flowchart of a method for determining coherent transmission codewords for some antennas in MIMO uplink transmission provided by an embodiment of the present application;
  • Figure 4 is a schematic flowchart of a method for determining coherent transmission codewords for some antennas in MIMO uplink transmission provided by an embodiment of the present application;
  • Figure 5 is a schematic flowchart of a method for determining coherent transmission codewords for some antennas in MIMO uplink transmission provided by an embodiment of the present application;
  • Figure 6 is a schematic flowchart of a codebook-based uplink transmission method provided by an embodiment of the present application.
  • Figure 7 is a schematic flowchart of a codebook-based uplink transmission method provided by an embodiment of the present application.
  • Figure 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 9 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 10 is a schematic structural diagram of a chip provided by an embodiment of the present application.
  • first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other.
  • first information may also be called second information, and similarly, the second information may also be called first information.
  • word “if” as used herein may be interpreted as "when” or “when” or “in response to determining”
  • the terms used in this article are “greater than” or “less than”, “higher than” or “lower than” when characterizing size relationships. But for those skilled in the art, it can be understood that: the term “greater than” also covers the meaning of “greater than or equal to”, and “less than” also covers the meaning of “less than or equal to”; the term “higher than” covers the meaning of “higher than or equal to”. “The meaning of “less than” also covers the meaning of "less than or equal to”.
  • the Physical Uplink Shared Channel (PUSCH) is used to carry data from the transmission channel PUSCH.
  • Coherent transmission is defined as a UE capability.
  • the UE's coherent transmission capabilities include:
  • Partial Coherence transmission Antenna ports in the same coherent transmission group can transmit coherently, while antenna ports in different coherent transmission groups cannot transmit coherently.
  • Each coherent transmission group includes at least two antenna ports.
  • Non-coherence transmission No antenna port can transmit coherently.
  • the partial antenna coherent transmission codewords are applicable to communication systems.
  • the communication systems applicable to the embodiments of the present application are first described below.
  • Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present application.
  • the communication system may include but is not limited to one network device and one terminal device.
  • the number and form of devices shown in Figure 1 are only for examples and do not constitute a limitation on the embodiments of the present application. In actual applications, two or more devices may be included.
  • the communication system shown in Figure 1 includes a network device 101 and a terminal device 102 as an example.
  • LTE long term evolution
  • 5th generation 5th generation
  • NR 5th generation new radio
  • side link in the embodiment of the present application may also be called a side link or a through link.
  • the network device 101 in the embodiment of this application is an entity on the network side that is used to transmit or receive signals.
  • the network device 101 may be an evolved base station (evolved NodeB, eNB), a transmission reception point (TRP), a next generation base station (next generation NodeB, gNB) in an NR system, or other base stations in future mobile communication systems.
  • the embodiments of this application do not limit the specific technology and specific equipment form used by the network equipment.
  • the network equipment provided by the embodiments of this application may be composed of a centralized unit (central unit, CU) and a distributed unit (DU).
  • the CU may also be called a control unit (control unit).
  • the structure can separate the protocol layers of network equipment, such as base stations, and place some protocol layer functions under centralized control on the CU. The remaining part or all protocol layer functions are distributed in the DU, and the CU centrally controls the DU.
  • the terminal device 102 in the embodiment of this application is an entity on the user side that is used to receive or transmit signals, such as a mobile phone.
  • Terminal equipment can also be called terminal equipment (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal equipment (mobile terminal, MT), etc.
  • the terminal device can be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality (augmented reality (AR) terminal equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical surgery, smart grid ( Wireless terminal equipment in smart grid, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home, etc.
  • the embodiments of this application do not limit the specific technology and specific equipment form used by the terminal equipment.
  • side-link transmission modes there are 4 side-link transmission modes.
  • Side link transmission mode 1 and side link transmission mode 2 are used for terminal device direct (device-to-device, D2D) communication.
  • Side-link transmission mode 3 and side-link transmission mode 4 are used for V2X communications.
  • resource allocation is scheduled by the network device 101.
  • the network device 101 can send resource allocation information to the terminal device 102, and then the terminal device 102 allocates resources to another terminal device, so that the other terminal device can send information to the network device 101 through the allocated resources.
  • a terminal device with better signal or higher reliability can be used as the terminal device 102 .
  • the first terminal device mentioned in the embodiment of this application may refer to the terminal device 102, and the second terminal device may refer to the other terminal device.
  • the method for determining the antenna coherent transmission codewords of the MIMO uplink transmission part provided in any embodiment of this application can be executed alone, or in combination with possible implementation methods in other embodiments, or in combination with related Any of the technical solutions are implemented together.
  • Figure 2 is a schematic flowchart of a method for determining a coherent transmission codeword for a MIMO uplink transmission part antenna provided by an embodiment of the present application. As shown in Figure 2, the method may include but is not limited to the following steps:
  • the coherent transmission capabilities of terminal equipment include fully coherent transmission, partially coherent transmission and non-coherent transmission.
  • the precoding codebook includes a total of three types of codewords, which are fully coherent transmission codewords for all antennas and coherent transmission for partial antennas. Codewords and antenna non-coherent transmission of codewords.
  • the first codeword is fully coherently transmitted by all antennas.
  • the data transmitted in each layer is mapped to all antenna ports.
  • the first codeword is a non-sparse matrix.
  • the first codewords for fully coherent transmission of all antennas of N antenna ports are the same as the number of antenna ports.
  • the first codewords of fully coherent transmission of all antennas of 8 antenna ports are 8,
  • the first codeword for fully coherent transmission by all antennas of the 4-antenna port is 4.
  • the first codeword corresponding to the N antenna port or N/2 antenna port is all the first codewords, not one of the first codewords.
  • the method for determining the first codeword of the N antenna port or the N/2 antenna port is not limited, and can be determined according to the actual situation.
  • the first codeword of the N antenna port may be the first codeword that pre-configures fully coherent transmission of all antennas.
  • the first codeword of the N antenna port can be a Kerdock codebook based on N dimensions, which determines the first codeword of fully coherent transmission of all antennas of the N antenna port.
  • the Kerdock code is This energy normalization is performed to obtain the first codeword of fully coherent transmission by all antennas of N antenna ports.
  • it can be the fully coherent transmission codewords for all antennas in the precoding codebook for MIIMO uplink transmission N/2 antenna ports agreed in the existing protocol; optionally, it can be the MIIMO downlink transmission N/2 agreed in the existing protocol. All antennas in the 2-antenna port precoding codebook fully coherently transmit codewords; optionally, all antennas in the preconfigured N/2 antenna port precoding codebook can fully coherently transmit codewords.
  • the second codeword of coherent transmission by some antennas divides all antenna ports into multiple antenna port groups.
  • the data transmitted by some layers is only mapped to one antenna port group, and the data transmitted by other layers is only mapped to other antennas.
  • each layer corresponds to each antenna port group one-to-one.
  • all antenna ports can be grouped to obtain the first antenna port group and the second antenna port group for fully coherent transmission of all antenna ports in the group, and the first antenna port group based on N antenna ports or N/2 antenna ports
  • the codeword, the first antenna port group and the second antenna port group determine the second codeword for coherent transmission of the partial antenna.
  • a second codeword for partial antenna coherent transmission is determined.
  • the first antenna port combination and the second antenna port group can be calculated from the first codeword of fully coherent transmission of all antennas of N antenna ports. Orthogonality judgment is made to construct the second codeword of the partial antenna coherent transmission of the N antenna port L layer.
  • codeword expansion is performed on the two antenna port groups by using the first codeword of fully coherent transmission by all antennas of low-dimensional antenna ports.
  • the high-dimensional partial antenna coherent transmission codeword is obtained, and the second codeword of the partial antenna coherent transmission corresponding to the L layer of the N antenna port is obtained.
  • N antenna ports can support L-layer PUSCH transmission, where the number of transmission layers L is less than or equal to N, and different antenna ports can support different numbers of transmission layers.
  • a corresponding relationship can be set between the N antenna ports and the number of transmission layers L. Through this corresponding relationship, each antenna is determined The number of layers transmitted by the port group.
  • the first layer can be to the third layer transmits on the first antenna port group, and the To the L-th layer, the second antenna port group is transmitted as the first corresponding relationship.
  • the first layer to No. layer transmits on the first antenna port group, and the The L-th layer is transmitted in the second antenna port group as the second correspondence relationship.
  • the first codeword of a certain all-antenna fully coherent transmission is:
  • each antenna port group transmit fully coherently, including but not limited to the following grouping methods.
  • the antenna ports ⁇ 1, 3, 5, 7 ⁇ can be set as the first antenna port group, and the antenna ports ⁇ 2, 4, 6, 8 ⁇ can be set as the second antenna port group, that is, the Layers 1 to 4 are transmitted at antenna ports ⁇ 1,3,5,7 ⁇ , and layers 5 to 8 are transmitted at antenna ports ⁇ 2,4,6,8 ⁇ .
  • the antenna ports ⁇ 2, 4, 6, 8 ⁇ can be set as the first antenna port group, and the antenna ports ⁇ 1, 3, 5, 7 ⁇ can be set as the second antenna port group, that is, the Layers 1 to 4 are transmitted at antenna ports ⁇ 2,4,6,8 ⁇ , and layers 5 to 8 are transmitted at antenna ports ⁇ 1,3,5,7 ⁇ .
  • the antenna ports ⁇ 1, 2, 5, 6 ⁇ can be set as the first antenna port group, and the antenna ports ⁇ 3, 4, 7, 8 ⁇ can be set as the second antenna port group, that is, the Layers 1 to 4 are transmitted on antenna ports ⁇ 1,2,5,6 ⁇ , and layers 5 to 8 are transmitted on antenna ports ⁇ 3,4,7,8 ⁇ .
  • the antenna ports ⁇ 3, 4, 7, 8 ⁇ can be set as the first antenna port group, and the antenna ports ⁇ 1, 2, 5, 6 ⁇ can be set as the second antenna port group, that is, the Layers 1 to 4 are transmitted at antenna ports ⁇ 3,4,7,8 ⁇ , and layers 5 to 8 are transmitted at antenna ports ⁇ 1,2,5,6 ⁇ .
  • the antenna ports ⁇ 1, 2, 3, 4 ⁇ can be set as the first antenna port group, and the antenna ports ⁇ 5, 6, 7, 8 ⁇ can be set as the second antenna port group, that is, the Layers 1 to 4 are transmitted on antenna ports ⁇ 1,2,3,4 ⁇ , and layers 5 to 8 are transmitted on antenna ports ⁇ 5,6,7,8 ⁇ .
  • the antenna ports ⁇ 5, 6, 7, 8 ⁇ can be set as the first antenna port group, and the antenna ports ⁇ 1, 2, 3, 4 ⁇ can be set as the second antenna port group, that is, the Layers 1 to 4 are transmitted at antenna ports ⁇ 5,6,7,8 ⁇ , and layers 5 to 8 are transmitted at antenna ports ⁇ 1,2,3,4 ⁇ .
  • the first codeword of fully coherent transmission by all antennas of N antenna ports or N/2 antenna ports corresponding to MIMO uplink transmission is determined. Based on the first codeword of N antenna ports or N/2 antenna ports, it is determined The second codeword of the partial antenna coherent transmission of the L layer of the N antenna port, where N is a positive integer power of 2, and L is less than or equal to N.
  • some antenna coherent transmission codewords can be designed based on the fully coherent transmission codewords of all antennas.
  • MIMO uplink supports the transmission requirements of layer 1 to layer 8 of 8 antenna ports, thereby further enhancing the uplink MIMO technology.
  • Figure 3 is a schematic flowchart of a method for determining a coherent transmission codeword for the MIMO uplink transmission part of the antenna provided by an embodiment of the present application. As shown in Figure 3, the method may include but is not limited to the following steps:
  • step S31 please refer to the relevant content records in the above embodiments, and will not be described again here.
  • orthogonality judgment can be performed on the L-layer vectors corresponding to the first antenna port group and the second antenna port group respectively to obtain the L-layer vectors corresponding to the first antenna port group.
  • the value of the matrix element corresponding to the first antenna port group can be determined based on the mutually orthogonal first vector
  • the value of the matrix element corresponding to the second antenna port group can be determined based on the mutually orthogonal second vector.
  • the matrix elements corresponding to the first antenna port group in the mutually orthogonal first vectors can be sequentially placed in the first layer to the first layer corresponding to the first antenna port group.
  • the matrix elements corresponding to the second antenna port group in the mutually orthogonal second vectors are sequentially placed in the I+1 to Lth layers corresponding to the second antenna port group. Further, the remaining matrix elements can be set to zero to obtain a first matrix.
  • each first codeword can obtain one or more first matrices according to the above implementation. That is to say, any codeword can correspond to one or more first matrices.
  • the L layer vector corresponding to the first antenna port group is judged on orthogonality and selected The vectors of the layers that are orthogonal to each other will be selected The elements corresponding to the first antenna port group in the mutually orthogonal vectors of the layers are respectively placed in the first to the first antenna port group corresponding to the partial antenna coherent transmission codeword. layer; judge the orthogonality of the L layer vector corresponding to the second antenna port group and select The vectors of the layers that are orthogonal to each other will be selected The elements corresponding to the second antenna port group in the mutually orthogonal vectors of the layers are respectively placed in the partial antenna coherent transmission codewords corresponding to the second antenna port group. Go to the L floor.
  • the correspondence between the N antenna ports and the number of transmission layers is the second correspondence
  • perform orthogonality judgment on the L layer vector corresponding to the first antenna port group and select The vectors of the layers that are orthogonal to each other will be selected
  • the elements corresponding to the first antenna port group in the mutually orthogonal vectors of the layers are respectively placed in the first to the first antenna port group corresponding to the partial antenna coherent transmission codeword.
  • the vectors of the layers that are orthogonal to each other will be selected
  • the elements corresponding to the second antenna port group in the mutually orthogonal vectors of the layers are respectively placed in the partial antenna coherent transmission codewords corresponding to the second antenna port group. Go to the L floor.
  • the following explains the process of determining the second codeword for coherent transmission of some antennas based on the first codeword corresponding to the 8-layer 8-antenna port.
  • a coherent transmission codeword for all antennas in the 8-layer precoding codebook for MIMO uplink transmission of 8 antenna ports is:
  • Antenna ports ⁇ 1,3,5,7 ⁇ are the first group, and antenna ports ⁇ 2,4,6,8 ⁇ are the second group, that is, layers 1 to 4 are at the antenna ports ⁇ 1,3,5 ,7 ⁇ transmission, layers 5 to 8 are transmitted at antenna ports ⁇ 2,4,6,8 ⁇ .
  • Antenna ports ⁇ 2,4,6,8 ⁇ are the first group, and antenna ports ⁇ 1,3,5,7 ⁇ are the second group, that is, layers 1 to 4 are at the antenna ports ⁇ 2,4,6 ,8 ⁇ transmission, layers 5 to 8 are transmitted at antenna ports ⁇ 1,3,5,7 ⁇ .
  • Antenna ports ⁇ 1,2,5,6 ⁇ are the first group, and antenna ports ⁇ 3,4,7,8 ⁇ are the second group, that is, layers 1 to 4 are at the antenna ports ⁇ 1,2,5 ,6 ⁇ transmission, layers 5 to 8 are transmitted at antenna ports ⁇ 3,4,7,8 ⁇ .
  • Antenna ports ⁇ 3,4,7,8 ⁇ are the first group, and antenna ports ⁇ 1,2,5,6 ⁇ are the second group, that is, layers 1 to 4 are at the antenna ports ⁇ 3,4,7 ,8 ⁇ transmission, layers 5 to 8 are transmitted at antenna ports ⁇ 1,2,5,6 ⁇ .
  • Antenna ports ⁇ 1,2,3,4 ⁇ are the first group, and antenna ports ⁇ 5,6,7,8 ⁇ are the second group, that is, layers 1 to 4 are at the antenna ports ⁇ 1,2,3 ,4 ⁇ transmission, layers 5 to 8 are transmitted at antenna ports ⁇ 5,6,7,8 ⁇ .
  • Antenna ports ⁇ 5,6,7,8 ⁇ are the first group, and antenna ports ⁇ 1,2,3,4 ⁇ are the second group, that is, layers 1 to 4 are at the antenna ports ⁇ 5,6,7 ,8 ⁇ transmission, layers 5 to 8 are transmitted at antenna ports ⁇ 1,2,3,4 ⁇ .
  • the orthogonality between the layers in each antenna port group can be judged, and based on the orthogonality judgment result, at least one third codeword corresponding to any first codeword can be determined. a matrix.
  • the MIMO uplink transmission N antenna port L layer precoding codebook part of the antenna coherent transmission codeword design scheme 1 After dividing all antenna ports into two antenna port groups, at this time, the MIMO uplink transmission 8 antenna port 8 layer precoding codebook All antenna coherent transmission codeword matrices in are also divided into two sub-matrices, each sub-matrix is a 4 ⁇ 8 matrix, and the orthogonality between the layers in each antenna port group is determined, as shown below:
  • the first layer and the second layer are not orthogonal
  • the third layer and the fourth layer are not orthogonal
  • the fifth layer and the sixth layer are not orthogonal
  • the seventh layer and the The 8th layer is not orthogonal, and any other two layers are orthogonal to each other.
  • the first layer and the second layer are not orthogonal
  • the third layer and the fourth layer are not orthogonal
  • the fifth layer and the sixth layer are not orthogonal
  • the seventh layer and the The 8th layer is not orthogonal, and any other two layers are orthogonal to each other.
  • the first layer and the third layer are not orthogonal
  • the second layer and the fourth layer are not orthogonal
  • the fifth layer and the seventh layer are not orthogonal
  • the sixth layer is not orthogonal to
  • the 8th layer is not orthogonal, and any other two layers are orthogonal to each other.
  • the first layer and the third layer are not orthogonal
  • the second layer and the fourth layer are not orthogonal
  • the fifth layer and the seventh layer are not orthogonal
  • the sixth layer and the The 8th layer is not orthogonal, and any other two layers are orthogonal to each other.
  • the first layer and the fifth layer are not orthogonal
  • the second layer and the sixth layer are not orthogonal
  • the third layer and the seventh layer are not orthogonal
  • the fourth layer is not orthogonal to
  • the 8th layer is not orthogonal, and any other two layers are orthogonal to each other.
  • the first layer and the fifth layer are not orthogonal
  • the second layer and the sixth layer are not orthogonal
  • the third layer and the seventh layer are not orthogonal
  • the fourth layer is not orthogonal to
  • the 8th layer is not orthogonal, and any other two layers are orthogonal to each other.
  • the mutually orthogonal first vectors of the I layer corresponding to the first antenna port group, and the mutually orthogonal second vectors of the J layer corresponding to the second antenna port group can be obtained.
  • the first layer and the second layer are not orthogonal
  • the third layer and the fourth layer are not orthogonal
  • the fifth layer and the sixth layer are not orthogonal
  • the seventh layer and the The 8th layer is not orthogonal, and any other two layers are orthogonal to each other. Therefore, for the first codeword of fully coherent transmission by all antennas corresponding to the 8-layer MIMO uplink transmission 8-antenna port, you can arbitrarily select a column in layer 1 and layer 2, and set the element corresponding to the first antenna port group.
  • the elements corresponding to the port group are placed on the 3rd layer
  • any column is selected from the 7th and 8th layers
  • the elements corresponding to the first antenna port group are placed on the 4th layer.
  • the first layer and the second layer are not orthogonal
  • the third layer and the fourth layer are not orthogonal
  • the fifth layer and the sixth layer are not orthogonal
  • the seventh layer is not orthogonal. It is not orthogonal to the 8th layer, and any other two layers are orthogonal to each other. Therefore, for the first codeword of fully coherent transmission by all antennas corresponding to the 8-layer MIMO uplink transmission 8-antenna port, you can arbitrarily select a column in the 1st and 2nd layers, and set the elements corresponding to the second antenna port group. On layer 5, select any column from layers 3 and 4, and place the elements corresponding to the second antenna port group on layer 6.
  • the remaining matrix elements can be set to zero to obtain the first matrix.
  • S33 Perform energy normalization on the first matrix to obtain the second codeword of partial antenna coherent transmission corresponding to any first codeword.
  • the energy of the first matrix can be normalized, and the second codeword can be coherently transmitted with the partial antenna corresponding to any first codeword.
  • the normalization coefficient corresponding to the second codeword can be set as
  • the following explanation is based on the second codeword of partial antenna coherent transmission corresponding to the 8th layer of 8antenna ports.
  • the second codeword CB of partial antenna coherent transmission corresponding to any first codeword is:
  • the energy normalization coefficient of the second codeword needs to be calculated accordingly, that is, the normalization coefficient at this time is
  • any first codeword is determined based on any first codeword, the first antenna port group and the second antenna port group.
  • the first matrix is energy normalized to obtain a second codeword corresponding to any first codeword that is coherently transmitted by a partial antenna.
  • Some antenna coherent transmission codewords can be designed based on the fully coherent transmission codewords of all antennas.
  • MIMO uplink supports the transmission requirements of layer 1 to layer 8 of 8 antenna ports, thereby further enhancing the uplink MIMO technology.
  • Figure 4 is a schematic flowchart of a method for determining a coherent transmission codeword for the MIMO uplink transmission part of the antenna provided by an embodiment of the present application. As shown in Figure 4, the method may include but is not limited to the following steps:
  • the setting of the first codeword of the N/2 antenna port is not limited in this application and can be selected according to the actual situation.
  • all antenna fully coherent transmission codewords in the N/2 antenna port precoding codebook for MIIMO uplink transmission as agreed in the existing protocol can be used as the first codeword of the N/2 antenna port.
  • all antenna fully coherent transmission codewords in the N/2 antenna port precoding codebook for MIIMO downlink transmission as agreed in the existing protocol can be used as the first codeword of the N/2 antenna port.
  • the fully coherent transmission codewords of all antennas in the preconfigured N/2 antenna port precoding codebook can be used as the first codeword of the N/2 antenna ports.
  • S42 determine the first codeword of the K layer of the N/2 antenna port from the first codeword of the N/2 antenna port, and the first codeword of the K layer of the N/2 antenna port, which is used to expand to obtain N
  • the second codeword is coherently transmitted by some antennas in the L layer of the antenna port, and the K layer is less than or equal to L.
  • L/2 in response to L being greater than N/2, L/2 can be rounded to obtain K 1 corresponding to the first antenna port group and K 2 corresponding to the second antenna port group, where N antenna ports
  • K 1 is obtained by rounding down L/2
  • K 2 is obtained by rounding up L/2
  • K 1 is obtained by rounding up L/2
  • K 2 is obtained by rounding down L/2
  • the sum of K 1 and K 2 is equal to L.
  • the value range of L is 5 to 7.
  • K 1 is obtained by rounding down 5/2, that is, K 1 is 2
  • K 2 is obtained by rounding up 5/2, that is, K 2 is 3
  • N antenna ports and the number of transmission layers The corresponding relationship between is the second corresponding relationship.
  • K 1 is obtained by rounding up 5/2, that is, K 1 is 3, and K 2 is obtained by rounding down 5/2, that is, K 2 is 2.
  • K to be L in response to L being less than or equal to N/2 and greater than 1, determine K to be L, and perform a rounding operation on K/2 to obtain K 3 corresponding to the first antenna port group, where the N antenna ports are The correspondence between the number of transmission layers is the first correspondence, K 3 is rounded down to K/2, or the correspondence between the N antenna ports and the number of transmission layers is the second correspondence, K 3 is rounded down to K /2 is obtained by rounding up. That is to say, when the correspondence between N antenna ports and the number of transmission layers is the first correspondence, When the correspondence between N antenna ports and the number of transmission layers is the second correspondence,
  • K 3 is the pair 3/2 It is obtained by rounding down, that is, K 3 is 1; for the second correspondence relationship, K 3 is obtained by rounding up 3/2, that is, K 3 is 2.
  • the matrix elements from the 1st layer to the K 1th layer can be placed in sequence from the 1st layer to the K 1th layer corresponding to the first antenna port group. .
  • the elements from the 1st layer to the K 2 layer can be multiplied by the set coefficient and then placed in sequence corresponding to the second antenna port group.
  • the remaining matrix elements can be set to zero to obtain a second matrix, and the second matrix can be energy normalized to obtain a second codeword of partial antenna coherent transmission corresponding to any first codeword.
  • the energy of the second matrix can be normalized based on the normalization coefficient corresponding to the second codeword to obtain the second codeword of partial antenna coherent transmission corresponding to any first codeword.
  • the process of determining the second codeword of partial antenna coherent transmission is explained.
  • the matrix elements of the 1st to Kth layers are sequentially placed in the 1st to Kth layers corresponding to the first antenna port group. 3 layers, and after multiplying the elements from the K 3 +1 to Kth layers by the set coefficient, they are placed in the K 3 +1 to Kth layers corresponding to the second antenna port group in turn.
  • the remaining matrix elements can be set to zero to obtain a third matrix, and the energy of the third matrix can be normalized to obtain a second codeword of partial antenna coherent transmission corresponding to any first codeword.
  • the energy of the third matrix can be normalized based on the normalization coefficient corresponding to the second codeword to obtain the second codeword of partial antenna coherent transmission corresponding to any first codeword.
  • the correspondence between N antenna ports and the number of transmission layers is the first correspondence
  • All antenna coherent transmission codewords in any layer precoding codebook from layer 1 to layer 1
  • the elements of the layer are respectively placed in the first layer to the first layer corresponding to the first antenna port group in the antenna coherent transmission codeword of the 8-antenna port L layer precoding codebook part. layer; for 4-antenna ports All antenna coherent transmission codewords in any layer precoding codebook, from layer 1 to layer 1
  • the elements of the layer are multiplied by the set coefficient to the Lth floor. Further, the remaining matrix elements can be set to zero to obtain the second matrix or the third matrix.
  • the correspondence between N antenna ports and the number of transmission layers is the second correspondence
  • All antenna coherent transmission codewords in any layer precoding codebook from layer 1 to layer 1
  • the elements of the layer are respectively placed in the first layer to the first layer corresponding to the first antenna port group in the antenna coherent transmission codeword of the 8-antenna port L layer precoding codebook part. layer; for 4-antenna ports All antenna coherent transmission codewords in any layer precoding codebook, from layer 1 to layer 1
  • the elements of the layer are multiplied by the set coefficient to the Lth floor. Further, the remaining matrix elements can be set to zero to obtain the second matrix or the third matrix.
  • the coefficient value set is ⁇ 1,-1,j,-j ⁇ , and the coefficient can be set to any element in the set.
  • the normalization coefficient corresponding to the second codeword can be set as
  • the first codeword of layer 1 of the N/2 antenna port can be directly placed in the first layer, and the remaining matrix elements are set to zero to obtain the fourth matrix, and the fourth matrix
  • the matrix is energy normalized to obtain the second codeword of partial antenna coherent transmission corresponding to any first codeword.
  • the following explanation takes the first codeword of fully coherent transmission by all antennas in the 4th layer of 4-antenna ports and the second codeword of the coherent transmission of partial antennas in the 4th layer of 8-antenna ports as examples for explanation.
  • the antenna ports ⁇ 1, 3, 5, 7 ⁇ can be set as the first antenna port group, and the antenna ports ⁇ 2, 4 ,6,8 ⁇ is the second group of antenna port group.
  • the elements of the first to fourth layers are respectively placed at the positions of the first to fourth layers corresponding to the first antenna port group.
  • the coefficient value set is ⁇ 1,-1,j,-j ⁇ , and the coefficient is set to be any element in the set.
  • the elements of the first to fourth layers can be multiplied by a coefficient of -1 and then placed at the positions of the fifth to eighth layers corresponding to the second antenna port group.
  • the remaining matrix elements can be set to zero to obtain a second matrix, and the second matrix can be energy normalized to obtain a second codeword of partial antenna coherent transmission corresponding to any first codeword.
  • the normalization coefficient corresponding to the second codeword can be set as
  • the first codeword for fully coherent transmission by all antennas on the 4th layer of the 4-antenna port, and the determined second codeword for coherent transmission by some antennas on the 8th layer of the 8-antenna port are:
  • the first codeword of the K layer of the N/2 antenna port is determined from the first codeword of the N/2 antenna port, and the first codeword of the K layer of the N/2 antenna port is determined by Expanded to obtain the second codeword of partial antenna coherent transmission of the L layer of N antenna ports, the K layer is less than or equal to L, based on the first codeword of the K layer of N/2 antenna ports, the first antenna port group and the second antenna port group to determine the second codeword for coherent transmission by some antennas.
  • This application can extract the characteristics of fully coherent transmission codewords of all antennas, and by selecting mutually orthogonal layers and adjusting their structures, designing some antenna coherent transmission codewords can support the transmission requirements of layer 1 to layer 8 of 8 antenna ports. This further enhances the uplink MIMO technology.
  • Figure 5 is a schematic flowchart of a method for determining a coherent transmission codeword for the MIMO uplink transmission part of the antenna provided by an embodiment of the present application. As shown in Figure 5, the method may include but is not limited to the following steps:
  • the first antenna port group and the second antenna port group determine the second codeword of the partial antenna coherent transmission of the N layer of the N antenna port, Please refer to the records of relevant contents in the above embodiments, which will not be described again here.
  • the L column vector can be selected from the second codeword of the partial antenna coherent transmission of the N layer of the N antenna port, and based on the selected L column vector, the partial antenna coherent transmission of the L layer of the N antenna port can be determined.
  • the second code word can be selected from the second codeword of the partial antenna coherent transmission of the N layer of the N antenna port, and based on the selected L column vector, the partial antenna coherent transmission of the L layer of the N antenna port can be determined. The second code word.
  • the L column can be randomly selected; optionally, the specified L column can be selected according to the agreement; optionally, the L column can be selected according to the set selection rules, such as selecting such that the signal-to-noise ratio (Signal-to-Noise Ratio) , SNR) or throughput and other indicators to maximize the L column.
  • the set selection rules such as selecting such that the signal-to-noise ratio (Signal-to-Noise Ratio) , SNR) or throughput and other indicators to maximize the L column.
  • the number of columns selected from the 1st to N/2th layers corresponding to the first antenna port group and the number of columns selected from the N/2+1 to Nth layers corresponding to the second antenna port group It is required that the absolute value of the difference between the two column numbers is less than or equal to 1.
  • 6 column vectors among the 8 column vectors of the second codeword coherently transmitted by partial antennas in the 8-layer 8-antenna port can be selected, and the absolute difference between the number of columns selected from the first 4 layers and the number of columns selected from the last 4 layers is If the value is less than or equal to 1, you can select the 1st, 2nd, 3rd, 5th, 6th and 8th layers of the second codewords for coherent transmission of some antennas in the 8th layer of the 8-antenna port, and set the normalization coefficient of the second codeword to Then the second codeword of partial antenna coherent transmission of 8-antenna port 6-layer pre-construction can be constructed:
  • the second codeword, the first antenna port group, and the second antenna port group corresponding to the N antenna port or N/2 antenna port can be determined based on the partial antenna coherent transmission of the N layer of the N antenna port.
  • Partial antenna coherent transmission codewords can be designed based on fully coherent transmission codewords for all antennas, and partial antenna coherent transmission codeword design from layer 1 to layer 8 of uplink transmission can be supported, thereby further enhancing uplink MIMO technology.
  • Figure 6 is a schematic flowchart of a codebook-based PUSCH transmission method provided by an embodiment of the present application. Executed by the terminal device, as shown in Figure 6, the method may include but is not limited to the following steps:
  • the network device can send Transmit Precoding Matrix Indicator (TPMI) information to the terminal device, where the precoding indication information carries the precoding codebook design. information, correspondingly, the terminal device can receive the precoding indication information sent by the network device.
  • TPMI Precoding Matrix Indicator
  • the Transmit Precoding Matrix Indicator is used to indicate a target codeword in the precoding matrix.
  • S62 Based on the precoding indication information, determine the target codeword corresponding to the uplink transmission from the precoding codebook of the L layer of the N antenna port corresponding to the MIMO uplink transmission.
  • the terminal device can determine the target codeword corresponding to the uplink transmission from the precoding codebook of the L layer of the N antenna port corresponding to the MIMO uplink transmission based on TPMI.
  • the precoding codebook corresponding to MIMO uplink transmission includes the first codeword of fully coherent transmission of all antennas based on N antenna ports or N/2 antenna ports in the above embodiment, and the N antenna port L layer is determined The second codeword of the partial antenna coherent transmission.
  • the process of determining the second codeword for coherent transmission by partial antennas of the L layer of the N antenna port please refer to the relevant content in the above embodiments and will not be described again here.
  • the terminal device can determine a target codeword from the precoding codebook based on TPMI.
  • the mapping relationship between the codeword and the index can be set in advance, and the target codeword for uplink transmission is determined from the precoding codebook based on the index.
  • S63 Precode the PUSCH based on the target codeword and send it to the network device.
  • the PUSCH After obtaining the target codeword, the PUSCH can be precoded based on the target codeword, and the precoded PUSCH is sent to the network device.
  • the precoding indication information sent by the network device is received, and based on the precoding indication information, the target corresponding to the uplink transmission is determined from the precoding codebook of the L layer of the N antenna port corresponding to the multiple-input multiple-output MIMO uplink transmission.
  • Codeword, PUSCH is precoded based on the target codeword and sent to the network device.
  • Some antenna coherent transmission codewords can be designed based on fully coherent transmission codewords for all antennas.
  • MIMO uplink supports the transmission requirements of layer 1 to layer 8 of 8 antenna ports. This further enhances the uplink MIMO technology.
  • Figure 7 is a schematic flowchart of a codebook-based uplink transmission method provided by an embodiment of the present application. Executed by the network device, as shown in Figure 7, the method may include but is not limited to the following steps:
  • the network device can receive the Sounding Reference Signals (SRS) resource sent by the terminal device, perform channel evaluation based on the SRS resource, determine the TPMI based on the evaluated channel status information, and send the TPMI to the terminal device.
  • SRS Sounding Reference Signals
  • the TPMI is used to indicate a codeword in the precoding matrix, and may be the index of the codeword.
  • the precoding codebook corresponding to MIMO uplink transmission includes the first codeword of fully coherent transmission of all antennas based on N antenna ports or N/2 antenna ports in the above embodiment, and the N antenna port L layer is determined The second codeword of the partial antenna coherent transmission.
  • the process of determining the second codeword for coherent transmission by partial antennas of the L layer of the N antenna port please refer to the relevant content in the above embodiments and will not be described again here.
  • S72 Receive the PUSCH transmission sent by the terminal device, where the PUSCH transmission is precoded by the terminal device based on the target codeword.
  • the terminal device After receiving the TPMI, the terminal device can obtain the target codeword determined for uplink transmission, precode the PUSCH based on the target codeword, and send the precoded PUSCH to the network device. Accordingly, the network device can receive the PUSCH transmission sent by the terminal device.
  • the precoding indication information is determined and sent to the terminal device to instruct the terminal device to determine the target corresponding to the uplink transmission from the precoding codebook of the L layer of the N antenna port corresponding to the MIMO uplink transmission.
  • the codeword is to receive the PUSCH transmission sent by the terminal device, where the PUSCH transmission is obtained by precoding the terminal device based on the target codeword.
  • Some antenna coherent transmission codewords can be designed based on the fully coherent transmission codewords of all antennas.
  • MIMO uplink supports the transmission requirements of layer 1 to layer 8 of 8 antenna ports, thereby further enhancing the uplink MIMO technology.
  • network equipment and terminal equipment may include hardware structures and software modules to implement the above functions in the form of hardware structures, software modules, or hardware structures plus software modules.
  • a certain function among the above functions can be executed by a hardware structure, a software module, or a hardware structure plus a software module.
  • FIG. 8 is a schematic structural diagram of a communication device 80 provided by an embodiment of the present application.
  • the communication device 80 shown in FIG. 14 may include a transceiver module 81 and a processing module 82.
  • the transceiving module 81 may include a sending module and/or a receiving module.
  • the sending module is used to implement the sending function
  • the receiving module is used to implement the receiving function.
  • the transceiving module 81 may implement the sending function and/or the receiving function.
  • the communication device 80 can be used to implement the method for determining the MIMO uplink transmission partial antenna coherent transmission codeword provided in the above embodiments.
  • the communication device 80 may be a terminal device, a device in the terminal device, or a device that can be used in conjunction with the terminal device.
  • the communication device 80 may be a network device, a device in the network device, or a device that can be used in conjunction with the network device.
  • the processing module 82 is used to determine the first codeword of fully coherent transmission of all antennas of N antenna ports or N/2 antenna ports corresponding to MIMO uplink transmission;
  • the N is a positive integer power of 2
  • the L is less than or equal to the N.
  • the processing module 82 is also used to group all antenna ports to obtain the first antenna port group and the second antenna port group for fully coherent transmission of all antenna ports in the group; based on the N antenna ports or N/2
  • the first codeword of the antenna port, the first antenna port group and the second antenna port group determine the second codeword of the partial antenna coherent transmission.
  • processing module 82 is also used to:
  • the first correspondence between N antenna ports and the number of transmission layers determine the first to layer transmits on the first antenna port group, and the to the L layer for transmission in the second antenna port group; or,
  • the second correspondence relationship between N antenna ports and the number of transmission layers determine the first to layer transmits on the first antenna port group, and the to the L layer for transmission in the second antenna port group.
  • processing module 82 is also used to:
  • Energy normalization is performed on the first matrix to obtain a second codeword of coherent transmission by the partial antenna corresponding to any first codeword.
  • processing module 82 is also used to:
  • any first codeword Based on any first codeword, perform orthogonality judgment on the L-layer vectors corresponding to the first antenna port group and the second antenna port group respectively to obtain the I corresponding to the first antenna port group.
  • the J is obtained by rounding down the L/2, or when the N antenna ports are grouped based on the second correspondence relationship, the I is obtained by rounding the L/2 upward.
  • L/2 is obtained by rounding up, the J is obtained by rounding down L/2, and the sum of I and J is equal to L;
  • processing module 82 is also used to:
  • processing module 82 is also used to:
  • the first codeword of the K layer of the N/2 antenna port is determined from the first codeword of the N/2 antenna port.
  • the first codeword is used to extend the second codeword to obtain the partial antenna coherent transmission of the L layer of the N antenna port, and the K layer is less than or equal to the L;
  • a second codeword of the partial antenna coherent transmission is determined.
  • processing module 82 is also used to:
  • L/2 is rounded to obtain K 1 corresponding to the first antenna port group and K 2 corresponding to the second antenna port group, where, When the N antenna ports are grouped based on the first correspondence relationship, K 1 is obtained by rounding down L/2, and K 2 is obtained by rounding up L/2, or the N When the antenna ports are grouped based on the second corresponding relationship, the K 1 is obtained by rounding up the L/2, the K 2 is obtained by rounding down the L/2, and the K 1 and the The sum of K 2 is equal to L;
  • the second codeword of the partial antenna coherent transmission is determined ,include:
  • the matrix elements from the 1st layer to the K 1th layer are sequentially placed in the 1st layer to the 1st layer corresponding to the first antenna port group.
  • processing module 82 is also used to:
  • K In response to the fact that L is less than or equal to the N/2 and greater than 1, determine the K to be the L, and perform a rounding operation on K/2 to obtain K 3 corresponding to the first antenna port group, where , when the N antenna ports are grouped based on the first correspondence, K 3 is obtained by rounding down K/2, or when the N antenna ports are grouped based on the second correspondence, K 3 is obtained by rounding up the K/2;
  • processing module 82 is also used to:
  • the matrix elements of the 1st to Kth layers are sequentially placed in the 1st to Kth layers corresponding to the first antenna port group. 3 layers, and after multiplying the elements from the K 3 +1 to Kth layers by the set coefficient, they are placed in the K 3 +1 to Kth layers corresponding to the second antenna port group in sequence;
  • processing module 82 is also used to:
  • the first codeword based on the N/2 antenna port 1 layer is directly placed in the first layer, and the remaining matrix elements are set to zero to obtain the fourth matrix, and the The fourth matrix performs energy normalization to obtain the second codeword of the coherent transmission of the partial antenna corresponding to any first codeword.
  • a value set of coefficients ⁇ 1,-1,j,-j ⁇ is set, and the set coefficient is any element in the set.
  • the first codeword of the N/2 antenna port is one of the following situations:
  • All antennas in the preconfigured N/2 antenna port precoding codebook transmit codewords fully coherently.
  • the normalization coefficient corresponding to the second codeword is
  • the processing module 82 is also configured to: based on the first codeword, the first antenna port group and the second antenna port group of the N antenna ports or the N/2 antenna ports, Determine the second codeword of the partial antenna coherent transmission of the N layer of the N antenna port; based on the second codeword of the partial antenna coherent transmission of the N layer of the N antenna port, determine the partial antenna coherent transmission of the N layer of the N antenna port For the second codeword, the L is smaller than the N.
  • processing module 82 is also used to:
  • the processing module 82 is also used to randomly select the L column; or select the specified L column according to the agreement; or select the L column according to the set selection rules.
  • the processing module 82 is also configured to select the number of columns selected from the 1st to N/2th layers corresponding to the first antenna port group and the N/2+th layer corresponding to the second antenna port group.
  • the number of columns selected from levels 1 to N must satisfy that the absolute value of the difference between the two column numbers is less than or equal to 1.
  • the communication device 80 may be a terminal device, and after determining the target codeword, perform uplink transmission based on the target codeword.
  • the transceiving module 81 is configured to receive precoding indication information sent by the network device.
  • the processing module 82 is also configured to determine the target codeword corresponding to the uplink transmission from the precoding codebook of the L layer of the N antenna port corresponding to the MIMO uplink transmission based on the precoding indication information.
  • the communication device 80 may be a network device, and after determining the target codeword, perform uplink transmission based on the target codeword.
  • the transceiver module 81 is used to determine the precoding indication information and send the precoding indication information to the terminal device to instruct the terminal device to determine the uplink from the precoding codebook of the L layer of the N antenna port corresponding to the MIMO uplink transmission. Transmit the corresponding target codeword.
  • the processing module 82 is also configured to receive the PUSCH transmission sent by the terminal device, where the PUSCH transmission is precoded by the terminal device based on the target codeword.
  • some antenna coherent transmission codewords can be designed based on the fully coherent transmission codewords of all antennas.
  • MIMO uplink supports the transmission requirements of layer 1 to layer 8 of 8 antenna ports, thereby further enhancing the uplink MIMO technology.
  • FIG. 9 is a schematic structural diagram of another communication device 90 provided by an embodiment of the present application.
  • the communication device 90 may be a terminal device, a network device, a chip, a chip system, or a processor that supports a terminal device to implement the above method, or a chip, a chip system, or a processor that supports a network device to implement the above method. Processor etc.
  • the device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.
  • Communication device 90 may include one or more processors 91.
  • the processor 91 may be a general-purpose processor or a special-purpose processor, or the like. For example, it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data.
  • the central processor can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.) and execute computer programs. , processing data for computer programs.
  • the communication device 90 may also include one or more memories 92, on which a computer program 94 may be stored.
  • the processor 91 executes the computer program 94, so that the communication device 90 performs the steps described in the above method embodiments. method.
  • the memory 92 may also store data.
  • the communication device 90 and the memory 92 can be provided separately or integrated together.
  • the communication device 90 may also include a transceiver 95 and an antenna 96 .
  • the transceiver 95 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions.
  • the transceiver 95 may include a receiver and a transmitter.
  • the receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function;
  • the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.
  • the communication device 90 may also include one or more interface circuits 97.
  • the interface circuit 97 is used to receive code instructions and transmit them to the processor 91 .
  • the processor 91 executes the code instructions to cause the communication device 90 to perform the method described in the above method embodiment.
  • the processor 91 may include a transceiver for implementing receiving and transmitting functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together.
  • the above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.
  • the processor 91 may store a computer program 93, and the computer program 93 runs on the processor 91, causing the communication device 90 to perform the method described in the above method embodiment.
  • the computer program 93 may be solidified in the processor 91, in which case the processor 91 may be implemented by hardware.
  • the communication device 90 may include a circuit, and the circuit may implement the functions of sending or receiving or communicating in the foregoing method embodiments.
  • the processor and transceiver described in this application can be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board (PCB), electronic equipment, etc.
  • the processor and transceiver can 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 (positive channel 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 sending device or a receiving device (such as the receiving device in the foregoing method embodiment), but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may not be limited to Limitations of Figure 9.
  • the communication device may be a stand-alone device or may be part of a larger device.
  • the communication device may be:
  • the IC collection may also include storage components for storing data and computer programs;
  • the communication device may be a chip or a chip system
  • the schematic structural diagram of the chip shown in FIG. 10 refer to the schematic structural diagram of the chip shown in FIG. 10 .
  • the chip shown in Figure 10 includes a processor 101 and an interface 102.
  • the number of processors 101 may be one or more, and the number of interfaces 102 may be multiple.
  • the chip also includes a memory 103, which is used to store necessary computer programs and data.
  • the chip is used to implement the functions of any of the above method embodiments when executed.
  • Embodiments of the present application also provide a communication system based on codebook uplink transmission.
  • the system includes a communication device as a terminal device (such as the terminal device in the foregoing method embodiment) in the embodiment of FIG. 8 and a communication device as a network device.
  • a communication device as a terminal device such as the terminal device in the foregoing method embodiment
  • a communication device as a network device such as the terminal device in the foregoing method embodiment
  • This application also provides a readable storage medium on which instructions are stored. When the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.
  • This application also provides a computer program product, which, when executed by a computer, implements the functions of any of the above method embodiments.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer programs.
  • the computer program When the computer program is loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program may be stored in or transferred from one computer-readable storage medium to another, for example, the computer program may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated therein.
  • the available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks, SSD)) etc.
  • magnetic media e.g., floppy disks, hard disks, magnetic tapes
  • optical media e.g., high-density digital video discs (DVD)
  • DVD digital video discs
  • semiconductor media e.g., solid state disks, SSD
  • At least one in this application can also be described as one or more, and the plurality can be two, three, four or more, which is not limited by this application.
  • the technical feature is distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc.
  • the technical features described in “first”, “second”, “third”, “A”, “B”, “C” and “D” are in no particular order or order.
  • the corresponding relationships shown in each table in this application 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 this application.
  • 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 may also be other names understandable by the communication device, and the values or expressions of the parameters may also be other values or expressions understandable 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. wait.
  • Predefinition in this application can be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, solidification, or pre-burning.

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Abstract

Disclosed in the embodiment of the present application are methods for determining a partial-antenna coherent transmission code word of MIMO uplink transmission, and an apparatus therefor, which can be used in a communication system. A method comprises: determining a first code word of all-antenna fully-coherent transmission of N antenna ports or N/2 antenna ports corresponding to MIMO uplink transmission; and, on the basis of the first code word of the N antenna ports or the N/2 antenna ports, determining a second code word of partial-antenna coherent transmission of L layers of the N antenna ports, wherein N is 2 to the power of a positive integer, and L is less than or equal to N. The partial-antenna coherent transmission code word can be designed on the basis of the all-antenna fully-coherent transmission code word, so that a requirement for MIMO uplink transmission of one layer to eight layers of eight antenna ports is supported, further enhancing uplink MIMO technology.

Description

MIMO上行传输部分天线相干传输码字的确定方法及其装置Method and device for determining coherent transmission codewords for partial antennas in MIMO uplink transmission 技术领域Technical field
本申请涉及通信技术领域，尤其涉及MIMO上行传输部分天线相干传输码字的确定方法及其装置。The present application relates to the field of communication technology, and in particular to a method and device for determining coherent transmission codewords for partial antennas in MIMO uplink transmission.
背景技术Background technique
多输入多输出(Multiple Input Multiple Output，MIMO)***中的预编码技术可有效降低干扰及***开销，提升***容量，是MIMO***中极其重要的关键技术，在基于码本传输的MIMO上行***中，码本设计也是预编码技术中重要的一部分。现有MIMO上行传输部分天线相干传输码字所支持的最大天线端口数量为4，即现有MIMO上行部分天线相干传输码字仅支持最大4天线端口最大4层的传输，在MIMO上行传输天线端口增强时，无法满足增强后天线端口的传输需求。Precoding technology in Multiple Input Multiple Output (MIMO) systems can effectively reduce interference and system overhead, and improve system capacity. It is an extremely important key technology in MIMO systems. In MIMO uplink systems based on codebook transmission ,Codebook design is also an important part of precoding technology. The maximum number of antenna ports supported by the existing MIMO uplink transmission part antenna coherent transmission codeword is 4, that is, the existing MIMO uplink part antenna coherent transmission codeword only supports transmission of a maximum of 4 antenna ports and a maximum of 4 layers. In the MIMO uplink transmission antenna port During enhancement, the transmission requirements of the enhanced antenna port cannot be met.
发明内容Contents of the invention
本申请实施例提供MIMO上行传输部分天线相干传输码字的确定方法及其装置，通过所有天线全相干传输码字设计部分天线相干传输码字，可应用于MIMO上行传输8天线端口1层至8层部分天线相干传输码字设计。The embodiments of this application provide a method and device for determining partial antenna coherent transmission codewords for MIMO uplink transmission. Partial antenna coherent transmission codewords are designed through fully coherent transmission codewords for all antennas, which can be applied to MIMO uplink transmission from layer 1 to layer 8 of 8 antenna ports. Coherent transmission codeword design for layer partial antennas.
第一方面，本申请实施例提供MIMO上行传输部分天线相干传输码字的确定方法，该方法包括：In the first aspect, embodiments of the present application provide a method for determining coherent transmission codewords for some MIMO uplink transmission antennas. The method includes:
确定MIMO上行传输对应的N天线端口或者N/2天线端口的所有天线全相干传输的第一码字；Determine the first codeword of fully coherent transmission for all antennas of N antenna ports or N/2 antenna ports corresponding to MIMO uplink transmission;
基于所述N天线端口或者N/2天线端口的所述第一码字，确定所述N天线端口L层的部分天线相干传输的第二码字；Based on the first codeword of the N antenna port or N/2 antenna port, determine the second codeword of the partial antenna coherent transmission of the L layer of the N antenna port;
其中，所述N为2的正整数次幂，所述L小于或者等于所述N。Wherein, the N is a positive integer power of 2, and the L is less than or equal to the N.
本申请实施例中，通过所有天线全相干传输码字设计部分天线相干传输码字，可应用于MIMO上行传输8天线端口1层至8层部分天线相干传输码字设计。In the embodiment of this application, partial antenna coherent transmission codewords are designed using fully coherent transmission codewords for all antennas, which can be applied to partial antenna coherent transmission codeword design from layer 1 to layer 8 for MIMO uplink transmission of 8 antenna ports.
第二方面，本申请实施例提供另一种MIMO上行传输部分天线相干传输码字的确定方法，该方法包括：In the second aspect, embodiments of the present application provide another method for determining coherent transmission codewords for partial antennas in MIMO uplink transmission. The method includes:
确定MIMO上行传输对应的N天线端口或者N/2天线端口的所有天线全相干传输的第一码字；Determine the first codeword of fully coherent transmission for all antennas of N antenna ports or N/2 antenna ports corresponding to MIMO uplink transmission;
基于所述N天线端口或者N/2天线端口的所述第一码字，确定所述N天线端口L层的部分天线相干传输的第二码字；Based on the first codeword of the N antenna port or N/2 antenna port, determine the second codeword of the partial antenna coherent transmission of the L layer of the N antenna port;
其中，所述N为2的正整数次幂，所述L小于或者等于所述N。Wherein, the N is a positive integer power of 2, and the L is less than or equal to the N.
本申请实施例中，通过所有天线全相干传输码字设计部分天线相干传输码字，可应用于MIMO上行传输8天线端口1层至8层部分天线相干传输码字设计。In the embodiment of this application, partial antenna coherent transmission codewords are designed using fully coherent transmission codewords for all antennas, which can be applied to partial antenna coherent transmission codeword design from layer 1 to layer 8 for MIMO uplink transmission of 8 antenna ports.
第三方面，本申请实施例提供一种通信装置，该通信装置具有实现上述第一方面所述的方法中终端设备的部分或全部功能，比如通信装置的功能可具备本申请中的部分或全部实施例中的功能，也可以具备单独实施本申请中的任一个实施例的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。In a third aspect, embodiments of the present application provide a communication device that has some or all of the functions of the terminal device in implementing the method described in the first aspect. For example, the functions of the communication device may have some or all of the functions in this application. The functions in the embodiments may also be used to independently implement any of the embodiments in this application. The functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.
在一种实现方式中，该通信装置的结构中可包括收发模块和处理模块，所述处理模块被配置为支持通信装置执行上述方法中相应的功能。所述收发模块用于支持通信装置与其他设备之间的通信。所述通 信装置还可以包括存储模块，所述存储模块用于与收发模块和处理模块耦合，其保存通信装置必要的计算机程序和数据。In one implementation, the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform corresponding functions in the above method. The transceiver module is used to support communication between the communication device and other devices. The communication device may also include a storage module coupled to the transceiver module and the processing module, which stores computer programs and data necessary for the communication device.
作为示例，处理模块可以为处理器，收发模块可以为收发器或通信接口，存储模块可以为存储器。As an example, the processing module may be a processor, the transceiver module may be a transceiver or a communication interface, and the storage module may be a memory.
第四方面，本申请实施例提供另一种通信装置，该通信装置具有实现上述第二方面所述的方法示例中网络设备的部分或全部功能，比如通信装置的功能可具备本申请中的部分或全部实施例中的功能，也可以具备单独实施本申请中的任一个实施例的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。In the fourth aspect, embodiments of the present application provide another communication device that has some or all of the functions of the network device in the method example described in the second aspect. For example, the functions of the communication device may have some of the functions in this application. Or the functions in all embodiments may also be used to implement any one embodiment of the present application independently. The functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.
在一种实现方式中，该通信装置的结构中可包括收发模块和处理模块，该处理模块被配置为支持通信装置执行上述方法中相应的功能。收发模块用于支持通信装置与其他设备之间的通信。所述通信装置还可以包括存储模块，所述存储模块用于与收发模块和处理模块耦合，其保存通信装置必要的计算机程序和数据。In one implementation, the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform corresponding functions in the above method. The transceiver module is used to support communication between the communication device and other devices. The communication device may further include a storage module coupled to the transceiver module and the processing module, which stores necessary computer programs and data for the communication device.
第五方面，本申请实施例提供一种通信装置，该通信装置包括处理器，当该处理器调用存储器中的计算机程序时，执行上述第一方面所述的方法。In a fifth aspect, embodiments of the present application provide a communication device. The communication device includes a processor. When the processor calls a computer program in a memory, it executes the method described in the first aspect.
第六方面，本申请实施例提供一种通信装置，该通信装置包括处理器，当该处理器调用存储器中的计算机程序时，执行上述第二方面所述的方法。In a sixth aspect, embodiments of the present application provide a communication device. The communication device includes a processor. When the processor calls a computer program in a memory, it executes the method described in the second aspect.
第七方面，本申请实施例提供一种通信装置，该通信装置包括处理器和存储器，该存储器中存储有计算机程序；所述处理器执行该存储器所存储的计算机程序，以使该通信装置执行上述第一方面所述的方法。In a seventh aspect, embodiments of the present application provide a communication device. The communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the first aspect above.
第八方面，本申请实施例提供一种通信装置，该通信装置包括处理器和存储器，该存储器中存储有计算机程序；所述处理器执行该存储器所存储的计算机程序，以使该通信装置执行上述第二方面所述的方法。In an eighth aspect, embodiments of the present application provide a communication device. The communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the second aspect above.
第九方面，本申请实施例提供一种通信装置，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所述的方法。In a ninth aspect, embodiments of the present application provide a communication device. The device includes a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor. The processor is used to run the code instructions to cause the The device performs the method described in the first aspect.
第十方面，本申请实施例提供一种通信装置，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二方面所述的方法。In a tenth aspect, embodiments of the present application provide a communication device. The device includes a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor. The processor is used to run the code instructions to cause the The device performs the method described in the second aspect above.
第十一方面，本申请实施例提供一种通信***，该***包括第三方面所述的通信装置以及第四方面所述的通信装置，或者，该***包括第五方面所述的通信装置以及第六方面所述的通信装置，或者，该***包括第七方面所述的通信装置以及第八方面所述的通信装置，或者，该***包括第九方面所述的通信装置以及第十方面所述的通信装置。In an eleventh aspect, embodiments of the present application provide a communication system, which includes the communication device described in the third aspect and the communication device described in the fourth aspect, or the system includes the communication device described in the fifth aspect and The communication device according to the sixth aspect, or the system includes the communication device according to the seventh aspect and the communication device according to the eighth aspect, or the system includes the communication device according to the ninth aspect and the communication device according to the tenth aspect. the above-mentioned communication device.
第十二方面，本发明实施例提供一种计算机可读存储介质，用于储存为上述终端设备所用的指令，当所述指令被执行时，使所述终端设备执行上述第一方面所述的方法。In a twelfth aspect, embodiments of the present invention provide a computer-readable storage medium for storing instructions used by the above-mentioned terminal equipment. When the instructions are executed, the terminal equipment is caused to execute the above-mentioned first aspect. method.
第十三方面，本发明实施例提供一种可读存储介质，用于储存为上述网络设备所用的指令，当所述指令被执行时，使所述网络设备执行上述第二方面所述的方法。In a thirteenth aspect, embodiments of the present invention provide a readable storage medium for storing instructions used by the above-mentioned network device. When the instructions are executed, the network device is caused to perform the method described in the second aspect. .
第十四方面，本申请还提供一种包括计算机程序的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面所述的方法。In a fourteenth aspect, the present application also provides a computer program product including a computer program, which when run on a computer causes the computer to execute the method described in the first aspect.
第十五方面，本申请还提供一种包括计算机程序的计算机程序产品，当其在计算机上运行时，使得 计算机执行上述第二方面所述的方法。In a fifteenth aspect, the present application also provides a computer program product including a computer program, which, when run on a computer, causes the computer to execute the method described in the second aspect.
第十六方面，本申请提供一种芯片***，该芯片***包括至少一个处理器和接口，用于支持终端设备实现第一方面所涉及的功能，例如，确定或处理上述方法中所涉及的数据和信息中的至少一种。在一种可能的设计中，所述芯片***还包括存储器，所述存储器，用于保存终端设备必要的计算机程序和数据。该芯片***，可以由芯片构成，也可以包括芯片和其他分立器件。In a sixteenth aspect, the present application provides a chip system, which includes at least one processor and an interface for supporting the terminal device to implement the functions involved in the first aspect, for example, determining or processing the data involved in the above method. and information. In a possible design, the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the terminal device. The chip system may be composed of chips, or may include chips and other discrete devices.
第十七方面，本申请提供一种芯片***，该芯片***包括至少一个处理器和接口，用于支持网络设备实现第二方面所涉及的功能，例如，确定或处理上述方法中所涉及的数据和信息中的至少一种。在一种可能的设计中，所述芯片***还包括存储器，所述存储器，用于保存网络设备必要的计算机程序和数据。该芯片***，可以由芯片构成，也可以包括芯片和其他分立器件。In a seventeenth aspect, this application provides a chip system, which includes at least one processor and an interface for supporting network equipment to implement the functions involved in the second aspect, for example, determining or processing the data involved in the above method. and information. In a possible design, the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the network device. The chip system may be composed of chips, or may include chips and other discrete devices.
第十八方面，本申请提供一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面所述的方法。In an eighteenth aspect, the present application provides a computer program that, when run on a computer, causes the computer to execute the method described in the first aspect.
第十九方面，本申请提供一种计算机程序，当其在计算机上运行时，使得计算机执行上述第二方面所述的方法。In a nineteenth aspect, this application provides a computer program that, when run on a computer, causes the computer to execute the method described in the second aspect.
附图说明Description of the drawings
为了更清楚地说明本申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所需要使用的附图进行说明。In order to more clearly explain the technical solutions in the embodiments of the present application or the background technology, the drawings required to be used in the embodiments or the background technology of the present application will be described below.
图1是本申请实施例提供的一种通信***的架构示意图；Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present application;
图2是本申请实施例提供的MIMO上行传输部分天线相干传输码字的确定方法的流程示意图；Figure 2 is a schematic flowchart of a method for determining coherent transmission codewords for some antennas in MIMO uplink transmission provided by an embodiment of the present application;
图3是本申请实施例提供的MIMO上行传输部分天线相干传输码字的确定方法的流程示意图；Figure 3 is a schematic flowchart of a method for determining coherent transmission codewords for some antennas in MIMO uplink transmission provided by an embodiment of the present application;
图4是本申请实施例提供的MIMO上行传输部分天线相干传输码字的确定方法的流程示意图；Figure 4 is a schematic flowchart of a method for determining coherent transmission codewords for some antennas in MIMO uplink transmission provided by an embodiment of the present application;
图5是本申请实施例提供的MIMO上行传输部分天线相干传输码字的确定方法的流程示意图；Figure 5 is a schematic flowchart of a method for determining coherent transmission codewords for some antennas in MIMO uplink transmission provided by an embodiment of the present application;
图6是本申请实施例提供的一种基于码本的上行传输方法的流程示意图；Figure 6 is a schematic flowchart of a codebook-based uplink transmission method provided by an embodiment of the present application;
图7是本申请实施例提供的一种基于码本的上行传输方法的流程示意图；Figure 7 is a schematic flowchart of a codebook-based uplink transmission method provided by an embodiment of the present application;
图8是本申请实施例提供的一种通信装置的结构示意图；Figure 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application;
图9是本申请实施例提供的一种通信装置的结构示意图；Figure 9 is a schematic structural diagram of a communication device provided by an embodiment of the present application;
图10是本申请实施例提供的一种芯片的结构示意图。Figure 10 is a schematic structural diagram of a chip provided by an embodiment of the present application.
具体实施方式Detailed ways
这里将详细地对示例性实施例进行说明，其示例表示在附图中。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、本公开的一些方面相一致的装置和方法的例子。Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with aspects of the disclosure as detailed in the appended claims.
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。The terminology used in the embodiments of the present disclosure is for the purpose of describing specific embodiments only and is not intended to limit the embodiments of the present disclosure. As used in the embodiments of the present disclosure and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.
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”可以被解释成为“在……时”或“当……时”或“响应于确定”It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be called second information, and similarly, the second information may also be called first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "when" or "in response to determining"
出于简洁和便于理解的目的，本文在表征大小关系时，所使用的术语为“大于”或“小于”、“高于”或“低于”。但对于本领域技术人员来说，可以理解：术语“大于”也涵盖了“大于等于”的含义，“小于”也涵盖了“小于等于”的含义；术语“高于”涵盖了“高于等于”的含义，“低于”也涵盖了“低于等于”的含义。For the purpose of simplicity and ease of understanding, the terms used in this article are "greater than" or "less than", "higher than" or "lower than" when characterizing size relationships. But for those skilled in the art, it can be understood that: the term "greater than" also covers the meaning of "greater than or equal to", and "less than" also covers the meaning of "less than or equal to"; the term "higher than" covers the meaning of "higher than or equal to". "The meaning of "less than" also covers the meaning of "less than or equal to".
为了便于理解，首先介绍本申请涉及的术语。To facilitate understanding, the terminology involved in this application is first introduced.
物理上行共享信道(Physical Uplink Shared Channel，PUSCH)用于承载来自传输信道PUSCH的数据。The Physical Uplink Shared Channel (PUSCH) is used to carry data from the transmission channel PUSCH.
相干传输被定义为一种UE的能力，UE的相干传输能力包括：Coherent transmission is defined as a UE capability. The UE's coherent transmission capabilities include:
全相干(Full Coherence)传输：所有的天线端口都可以相干传输。Full Coherence transmission: All antenna ports can transmit coherently.
部分相干(Partial Coherence)传输：同一相干传输组内的天线端口可以相干传输，不同相干传输组内的天线端口不能相干传输，每个相干传输组包括至少两个天线端口。Partial Coherence transmission: Antenna ports in the same coherent transmission group can transmit coherently, while antenna ports in different coherent transmission groups cannot transmit coherently. Each coherent transmission group includes at least two antenna ports.
非相干(Non coherence)传输：没有天线端口可以相干传输。Non-coherence transmission: No antenna port can transmit coherently.
通过本申请实施例公开的MIMO上行传输部分天线相干传输码字的确定方法，确定出部分天线相干传输码字可适用于通信***中，下面首先对本申请实施例适用的通信***进行描述。Through the method for determining partial antenna coherent transmission codewords for MIMO uplink transmission disclosed in the embodiments of the present application, it is determined that the partial antenna coherent transmission codewords are applicable to communication systems. The communication systems applicable to the embodiments of the present application are first described below.
请参见图1，图1为本申请实施例提供的一种通信***的架构示意图。该通信***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申请实施例的限定，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***以包括一个网络设备101和一个终端设备102为例。Please refer to Figure 1. Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present application. The communication system may include but is not limited to one network device and one terminal device. The number and form of devices shown in Figure 1 are only for examples and do not constitute a limitation on the embodiments of the present application. In actual applications, two or more devices may be included. Network equipment, two or more terminal devices. The communication system shown in Figure 1 includes a network device 101 and a terminal device 102 as an example.
需要说明的是，本申请实施例的技术方案可以应用于各种通信***。例如：长期演进(long term evolution，LTE)***、第五代(5th generation，5G)移动通信***、5G新空口(new radio，NR)***，或者其他未来的新型移动通信***等。还需要说明的是，本申请实施例中的侧链路还可以称为侧行链路或直通链路。It should be noted that the technical solutions of the embodiments of the present application can be applied to various communication systems. For example: long term evolution (LTE) system, fifth generation (5th generation, 5G) mobile communication system, 5G new radio (NR) system, or other future new mobile communication systems. It should also be noted that the side link in the embodiment of the present application may also be called a side link or a through link.
本申请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(evolved NodeB，eNB)、发送接收点(transmission reception point，TRP)、NR***中的下一代基站(next generation NodeB，gNB)、其他未来移动通信***中的基站或无线保真(wireless fidelity，WiFi)***中的接入节点等。本申请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。本申请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。The network device 101 in the embodiment of this application is an entity on the network side that is used to transmit or receive signals. For example, the network device 101 may be an evolved base station (evolved NodeB, eNB), a transmission reception point (TRP), a next generation base station (next generation NodeB, gNB) in an NR system, or other base stations in future mobile communication systems. Base stations or access nodes in wireless fidelity (WiFi) systems, etc. The embodiments of this application do not limit the specific technology and specific equipment form used by the network equipment. The network equipment provided by the embodiments of this application may be composed of a centralized unit (central unit, CU) and a distributed unit (DU). The CU may also be called a control unit (control unit). CU-DU is used. The structure can separate the protocol layers of network equipment, such as base stations, and place some protocol layer functions under centralized control on the CU. The remaining part or all protocol layer functions are distributed in the DU, and the CU centrally controls the DU.
本申请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。本申请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。The terminal device 102 in the embodiment of this application is an entity on the user side that is used to receive or transmit signals, such as a mobile phone. Terminal equipment can also be called terminal equipment (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal equipment (mobile terminal, MT), etc. The terminal device can be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality ( augmented reality (AR) terminal equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical surgery, smart grid ( Wireless terminal equipment in smart grid, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home, etc. The embodiments of this application do not limit the specific technology and specific equipment form used by the terminal equipment.
在侧链路通信中，存在4种侧链路传输模式。侧链路传输模式1和侧链路传输模式2用于终端设备直通(device-to-device，D2D)通信。侧链路传输模式3和侧链路传输模式4用于V2X通信。当采用侧链路传输模式3时，资源分配由网络设备101调度。具体的，网络设备101可以将资源分配信息发送给终端设备102，然后由该终端设备102向另一终端设备分配资源，以使得该另一终端设备可以通过分配到的资源向网络设备101发送信息。在V2X通信中，可以将信号较好或者可靠性较高的终端设备作为终端设备102。本申请实施例中提及的第一终端设备可以指该终端设备102，第二终端设备可以指该另一终端设备。In side-link communication, there are 4 side-link transmission modes. Side link transmission mode 1 and side link transmission mode 2 are used for terminal device direct (device-to-device, D2D) communication. Side-link transmission mode 3 and side-link transmission mode 4 are used for V2X communications. When side-link transmission mode 3 is adopted, resource allocation is scheduled by the network device 101. Specifically, the network device 101 can send resource allocation information to the terminal device 102, and then the terminal device 102 allocates resources to another terminal device, so that the other terminal device can send information to the network device 101 through the allocated resources. . In V2X communication, a terminal device with better signal or higher reliability can be used as the terminal device 102 . The first terminal device mentioned in the embodiment of this application may refer to the terminal device 102, and the second terminal device may refer to the other terminal device.
可以理解的是，本申请实施例描述的通信***是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着***架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。It can be understood that the communication system described in the embodiments of the present application is to more clearly illustrate the technical solutions of the embodiments of the present application, and does not constitute a limitation on the technical solutions provided by the embodiments of the present application. As those of ordinary skill in the art will know, With the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.
需要说明的是，本申请中任一个实施例提供的MIMO上行传输部分天线相干传输码字的确定方法可以单独执行，或是结合其他实施例中的可能的实现方法一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。It should be noted that the method for determining the antenna coherent transmission codewords of the MIMO uplink transmission part provided in any embodiment of this application can be executed alone, or in combination with possible implementation methods in other embodiments, or in combination with related Any of the technical solutions are implemented together.
下面结合附图对本申请所提供的MIMO上行传输部分天线相干传输码字的确定方法及其装置进行详细地介绍。The method and device for determining the coherent transmission codeword of the MIMO uplink transmission part antenna provided by this application will be introduced in detail below with reference to the accompanying drawings.
请参见图2，图2是本申请实施例提供的MIMO上行传输部分天线相干传输码字的确定方法的流程示意图。如图2所示，该方法可以包括但不限于如下步骤：Please refer to Figure 2. Figure 2 is a schematic flowchart of a method for determining a coherent transmission codeword for a MIMO uplink transmission part antenna provided by an embodiment of the present application. As shown in Figure 2, the method may include but is not limited to the following steps:
S21，确定MIMO上行传输对应的N天线端口或者N/2天线端口的所有天线全相干传输的第一码字。S21. Determine the first codeword of fully coherent transmission by all antennas of N antenna ports or N/2 antenna ports corresponding to MIMO uplink transmission.
终端设备的相干传输能力包括全相干传输、部分相干传输和非相干传输，相应地预编码码本中包括共包含三种类型的码字，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。The coherent transmission capabilities of terminal equipment include fully coherent transmission, partially coherent transmission and non-coherent transmission. Correspondingly, the precoding codebook includes a total of three types of codewords, which are fully coherent transmission codewords for all antennas and coherent transmission for partial antennas. Codewords and antenna non-coherent transmission of codewords.
其中，所有天线全相干传输的第一码字，每层传输的数据映射到所有的天线端口上，第一码字为非稀疏矩阵。Among them, the first codeword is fully coherently transmitted by all antennas. The data transmitted in each layer is mapped to all antenna ports. The first codeword is a non-sparse matrix.
需要说明的是，本申请中对于N天线端口的所有天线全相干传输的第一码字与天线端口的数量相同，例如，8天线端口的所有天线全相干传输的第一码字为8个，4天线端口的所有天线全相干传输的第一码字为4个。N天线端口或者N/2天线端口对应的第一码字，即为所有的第一码字，并非其中一个第一码字。It should be noted that in this application, the first codewords for fully coherent transmission of all antennas of N antenna ports are the same as the number of antenna ports. For example, the first codewords of fully coherent transmission of all antennas of 8 antenna ports are 8, The first codeword for fully coherent transmission by all antennas of the 4-antenna port is 4. The first codeword corresponding to the N antenna port or N/2 antenna port is all the first codewords, not one of the first codewords.
本申请中对于N天线端口或者N/2天线端口的第一码字的确定方式不作限定，可以根据实际情况进行确定。In this application, the method for determining the first codeword of the N antenna port or the N/2 antenna port is not limited, and can be determined according to the actual situation.
可选地，N天线端口的第一码字可以为预先配置所有天线全相干传输的第一码字。可选地，N天线端口的第一码字，可以为基于N维的克尔杜克Kerdock码本，确定N天线端口的的所有天线全相干传输的第一码字，本申请中对Kerdock码本进行能量归一化获取N天线端口的所有天线全相干传输的第一码字。Optionally, the first codeword of the N antenna port may be the first codeword that pre-configures fully coherent transmission of all antennas. Optionally, the first codeword of the N antenna port can be a Kerdock codebook based on N dimensions, which determines the first codeword of fully coherent transmission of all antennas of the N antenna port. In this application, the Kerdock code is This energy normalization is performed to obtain the first codeword of fully coherent transmission by all antennas of N antenna ports.
可选地，可以为现有协议中约定的MIIMO上行传输N/2天线端口预编码码本中所有天线全相干传 输码字；可选地，可以为现有协议中约定的MIIMO下行传输N/2天线端口预编码码本中所有天线全相干传输码字；可选地，可以为预先配置的N/2天线端口预编码码本中所有天线全相干传输码字。Optionally, it can be the fully coherent transmission codewords for all antennas in the precoding codebook for MIIMO uplink transmission N/2 antenna ports agreed in the existing protocol; optionally, it can be the MIIMO downlink transmission N/2 agreed in the existing protocol. All antennas in the 2-antenna port precoding codebook fully coherently transmit codewords; optionally, all antennas in the preconfigured N/2 antenna port precoding codebook can fully coherently transmit codewords.
S22，基于N天线端口或者N/2天线端口的第一码字，确定N天线端口L层的部分天线相干传输的第二码字；其中，N为2的正整数次幂，L小于或者等于N。S22, based on the first codeword of the N antenna port or the N/2 antenna port, determine the second codeword of the partial antenna coherent transmission of the L layer of the N antenna port; where N is a positive integer power of 2, and L is less than or equal to N.
其中，部分天线相干传输的第二码字，将所有天线端口分为多个天线端口组，其中，部分层传输的数据仅映射到一个天线端口组上，其他层传输的数据仅映射到其他天线端口组上，且每部分层和每天线端口组一一对应。Among them, the second codeword of coherent transmission by some antennas divides all antenna ports into multiple antenna port groups. Among them, the data transmitted by some layers is only mapped to one antenna port group, and the data transmitted by other layers is only mapped to other antennas. On the port group, each layer corresponds to each antenna port group one-to-one.
本申请实施例中，可以对所有天线端口进行分组，得到组内所有天线端口全相干传输的第一天线端口组和第二天线端口组，并基于N天线端口或者N/2天线端口的第一码字、第一天线端口组和第二天线端口组，确定部分天线相干传输的第二码字。In the embodiment of the present application, all antenna ports can be grouped to obtain the first antenna port group and the second antenna port group for fully coherent transmission of all antenna ports in the group, and the first antenna port group based on N antenna ports or N/2 antenna ports The codeword, the first antenna port group and the second antenna port group determine the second codeword for coherent transmission of the partial antenna.
基于N天线端口或者N/2天线端口的所述第一码字、第一天线端口组和第二天线端口组，确定部分天线相干传输的第二码字。Based on the first codeword, the first antenna port group and the second antenna port group of N antenna ports or N/2 antenna ports, a second codeword for partial antenna coherent transmission is determined.
可选地，基于N天线端口的所有天线全相干传输的第一码字，可以从N天线端口的所有天线全相干传输的第一码字，对第一天线端口组合和第二天线端口组进行正交性判断，以构建N天线端口L层的部分天线相干传输的第二码字。Optionally, based on the first codeword of fully coherent transmission by all antennas of N antenna ports, the first antenna port combination and the second antenna port group can be calculated from the first codeword of fully coherent transmission of all antennas of N antenna ports. Orthogonality judgment is made to construct the second codeword of the partial antenna coherent transmission of the N antenna port L layer.
可选地，基于N/2天线端口的所有天线全相干传输的第一码字，通过对低维度天线端口所有天线全相干传输的第一码字，对两个天线端口组进行码字扩展并补零，得到高维度部分天线相干传输码字，得到N天线端口L层对应的部分天线相干传输的第二码字。Optionally, based on the first codeword of fully coherent transmission by all antennas of N/2 antenna ports, codeword expansion is performed on the two antenna port groups by using the first codeword of fully coherent transmission by all antennas of low-dimensional antenna ports. By padding zeros, the high-dimensional partial antenna coherent transmission codeword is obtained, and the second codeword of the partial antenna coherent transmission corresponding to the L layer of the N antenna port is obtained.
需要说明的是，N天线端口可以支持L层的PUSCH传输，其中，传输层数L小于或者等于N，不同的天线端口可以支持不同的传输层数。在将所有天线端口分成第一天线端口组和第二天线端口组后，本申请实施例中，可以为N天线端口与传输层数L之间设置对应关系，通过该对应关系，确定每个天线端口组传输的层数。It should be noted that N antenna ports can support L-layer PUSCH transmission, where the number of transmission layers L is less than or equal to N, and different antenna ports can support different numbers of transmission layers. After all the antenna ports are divided into the first antenna port group and the second antenna port group, in the embodiment of the present application, a corresponding relationship can be set between the N antenna ports and the number of transmission layers L. Through this corresponding relationship, each antenna is determined The number of layers transmitted by the port group.
可选地，针对N天线端口与传输层数之间的第一对应关系：在得到每组内所有天线端口全相干传输的第一天线端口组和第二天线端口组后，可以将第1层至第
Figure PCTCN2022087519-appb-000001
层在第一天线端口组传输，以及第
Figure PCTCN2022087519-appb-000002
至第L层在第二天线端口组传输，作为第一对应关系。 Optionally, for the first correspondence between N antenna ports and the number of transmission layers: after obtaining the first antenna port group and the second antenna port group for fully coherent transmission of all antenna ports in each group, the first layer can be to the third
Figure PCTCN2022087519-appb-000001
layer transmits on the first antenna port group, and the
Figure PCTCN2022087519-appb-000002
To the L-th layer, the second antenna port group is transmitted as the first corresponding relationship.
可选地，针对N天线端口与传输层数之间的第二对应关系：在得到组内所有天线端口全相干传输的第一天线端口组和第二天线端口组后，可以将第1层至第
Figure PCTCN2022087519-appb-000003
层在第一天线端口组传输，以及第
Figure PCTCN2022087519-appb-000004
至第L层在第二天线端口组传输，作为第二对应关系。 Optionally, for the second correspondence between N antenna ports and the number of transmission layers: after obtaining the first antenna port group and the second antenna port group for fully coherent transmission of all antenna ports in the group, the first layer to No.
Figure PCTCN2022087519-appb-000003
layer transmits on the first antenna port group, and the
Figure PCTCN2022087519-appb-000004
The L-th layer is transmitted in the second antenna port group as the second correspondence relationship.
举例而言，MIMO上行传输8天线端口8层预编码码本中某个所有天线全相干传输的第一码字为：For example, in the MIMO uplink transmission 8-antenna port 8-layer precoding codebook, the first codeword of a certain all-antenna fully coherent transmission is:
Figure PCTCN2022087519-appb-000005
Figure PCTCN2022087519-appb-000005
需要说明的是，其中每个天线端口组中的所有天线全相干传输，包括但不限于以下几种分组方式。It should be noted that all antennas in each antenna port group transmit fully coherently, including but not limited to the following grouping methods.
可选地，针对分组方式a)，可以设置天线端口{1,3,5,7}为第一天线端口组，天线端口{2,4,6,8}为第二天线端口组，即第1至第4层在天线端口{1,3,5,7}传输，第5至第8层在天线端口{2,4,6,8}传输。Optionally, for the grouping method a), the antenna ports {1, 3, 5, 7} can be set as the first antenna port group, and the antenna ports {2, 4, 6, 8} can be set as the second antenna port group, that is, the Layers 1 to 4 are transmitted at antenna ports {1,3,5,7}, and layers 5 to 8 are transmitted at antenna ports {2,4,6,8}.
可选地，针对分组方式b)，可以设置天线端口{2,4,6,8}为第一天线端口组，天线端口{1,3,5,7}为第二天线端口组，即第1至第4层在天线端口{2,4,6,8}传输，第5至第8层在天线端口{1,3,5,7}传输。Optionally, for the grouping method b), the antenna ports {2, 4, 6, 8} can be set as the first antenna port group, and the antenna ports {1, 3, 5, 7} can be set as the second antenna port group, that is, the Layers 1 to 4 are transmitted at antenna ports {2,4,6,8}, and layers 5 to 8 are transmitted at antenna ports {1,3,5,7}.
可选地，针对分组方式c)，可以设置天线端口{1,2,5,6}为第一天线端口组，天线端口{3,4,7,8}为第二天线端口组，即第1至第4层在天线端口{1,2,5,6}传输，第5至第8层在天线端口{3,4,7,8}传输。Optionally, for the grouping method c), the antenna ports {1, 2, 5, 6} can be set as the first antenna port group, and the antenna ports {3, 4, 7, 8} can be set as the second antenna port group, that is, the Layers 1 to 4 are transmitted on antenna ports {1,2,5,6}, and layers 5 to 8 are transmitted on antenna ports {3,4,7,8}.
可选地，针对分组方式d)，可以设置天线端口{3,4,7,8}为第一天线端口组，天线端口{1,2,5,6}为第二天线端口组，即第1至第4层在天线端口{3,4,7,8}传输，第5至第8层在天线端口{1,2,5,6}传输。Optionally, for the grouping method d), the antenna ports {3, 4, 7, 8} can be set as the first antenna port group, and the antenna ports {1, 2, 5, 6} can be set as the second antenna port group, that is, the Layers 1 to 4 are transmitted at antenna ports {3,4,7,8}, and layers 5 to 8 are transmitted at antenna ports {1,2,5,6}.
可选地，针对分组方式e)，可以设置天线端口{1,2,3,4}为第一天线端口组，天线端口{5,6,7,8}为第二天线端口组，即第1至第4层在天线端口{1,2,3,4}传输，第5至第8层在天线端口{5,6,7,8}传输。Optionally, for the grouping method e), the antenna ports {1, 2, 3, 4} can be set as the first antenna port group, and the antenna ports {5, 6, 7, 8} can be set as the second antenna port group, that is, the Layers 1 to 4 are transmitted on antenna ports {1,2,3,4}, and layers 5 to 8 are transmitted on antenna ports {5,6,7,8}.
可选地，针对分组方式f)，可以设置天线端口{5,6,7,8}为第一天线端口组，天线端口{1,2,3,4}为第二天线端口组，即第1至第4层在天线端口{5,6,7,8}传输，第5至第8层在天线端口{1,2,3,4}传输。Optionally, for the grouping method f), the antenna ports {5, 6, 7, 8} can be set as the first antenna port group, and the antenna ports {1, 2, 3, 4} can be set as the second antenna port group, that is, the Layers 1 to 4 are transmitted at antenna ports {5,6,7,8}, and layers 5 to 8 are transmitted at antenna ports {1,2,3,4}.
本申请实施例中，确定MIMO上行传输对应的N天线端口或者N/2天线端口的所有天线全相干传输的第一码字，基于N天线端口或者N/2天线端口的第一码字，确定N天线端口L层的部分天线相干传输的第二码字，其中，N为2的正整数次幂，L小于或者等于N。本申请实施例中可基于所有天线全相干传输码字设计部分天线相干传输码字，MIMO上行支持8天线端口1层至8层传输的需求，进而对上行MIMO技术进一步增强。In the embodiment of this application, the first codeword of fully coherent transmission by all antennas of N antenna ports or N/2 antenna ports corresponding to MIMO uplink transmission is determined. Based on the first codeword of N antenna ports or N/2 antenna ports, it is determined The second codeword of the partial antenna coherent transmission of the L layer of the N antenna port, where N is a positive integer power of 2, and L is less than or equal to N. In the embodiment of this application, some antenna coherent transmission codewords can be designed based on the fully coherent transmission codewords of all antennas. MIMO uplink supports the transmission requirements of layer 1 to layer 8 of 8 antenna ports, thereby further enhancing the uplink MIMO technology.
请参见图3，图3是本申请实施例提供的MIMO上行传输部分天线相干传输码字的确定方法的流程示意图。如图3所示，该方法可以包括但不限于如下步骤：Please refer to Figure 3. Figure 3 is a schematic flowchart of a method for determining a coherent transmission codeword for the MIMO uplink transmission part of the antenna provided by an embodiment of the present application. As shown in Figure 3, the method may include but is not limited to the following steps:
S31，确定MIMO上行传输对应的N天线端口的所有天线全相干传输的第一码字。S31. Determine the first codeword of fully coherent transmission by all antennas of the N antenna ports corresponding to the MIMO uplink transmission.
关于步骤S31具体介绍，可参见上述实施例中相关内容的记载，此处不再赘述。For the specific introduction of step S31, please refer to the relevant content records in the above embodiments, and will not be described again here.
S32，针对N天线端口的第一码字中任一第一码字，根据任一第一码字、第一天线端口组和第二天线端口组，确定任一第一码字对应的至少一个第一矩阵。S32. For any first codeword among the first codewords of the N antenna ports, determine at least one codeword corresponding to any first codeword based on any first codeword, the first antenna port group and the second antenna port group. First matrix.
作为一种可能实现的方式，可以基于任一第一码字，分别对第一天线端口组和第二天线端口组对应的L层向量进行正交性判断，以获取第一天线端口组对应的I层相互正交的第一向量，以及第二天线端口组对应的J层相互正交的第二向量。As a possible implementation method, based on any first codeword, orthogonality judgment can be performed on the L-layer vectors corresponding to the first antenna port group and the second antenna port group respectively to obtain the L-layer vectors corresponding to the first antenna port group. A first vector that is orthogonal to each other in the I layer, and a second vector that is orthogonal to each other in the J layer corresponding to the second antenna port group.
其中，N个天线端口与传输层数之间的对应关系为第一对应关系时，I为对L/2向下取整得到，J为对L/2向上取整得到，或者N个天线端口与传输层数之间的对应关系为第二对应关系时，I为对L/2向上取整得到，J为对L/2向下取整得到，I和J之和等于L。Among them, when the correspondence between N antenna ports and the number of transmission layers is the first correspondence, I is obtained by rounding down L/2, J is obtained by rounding up L/2, or N antenna ports When the correspondence relationship with the number of transmission layers is the second correspondence relationship, I is obtained by rounding up L/2, J is obtained by rounding down L/2, and the sum of I and J is equal to L.
也就是说，N个天线端口与传输层数之间的对应关系为对应关系1时，
Figure PCTCN2022087519-appb-000006
N个天线端口与传输层数之间的对应关系为对应关系2时，
Figure PCTCN2022087519-appb-000007
That is to say, when the correspondence between N antenna ports and the number of transmission layers is correspondence 1,
Figure PCTCN2022087519-appb-000006
When the correspondence between N antenna ports and the number of transmission layers is correspondence 2,
Figure PCTCN2022087519-appb-000007
进一步地，可以基于相互正交的第一向量，确定第一天线端口组对应的矩阵元素的取值，以及基于相互正交的第二向量，确定第二天线端口组对应的矩阵元素的取值，以生成一个第一矩阵。本申请中，可以将相互正交的第一向量中与第一天线端口组对应的矩阵元素依次置于与第一天线端口组对应的第1层至第I层。进一步地，将相互正交的第二向量中与第二天线端口组对应的矩阵元素依次置于与第二天线端口组对应的第I+1至第L层。进一步地可以将剩余的矩阵元素置零得到一个第一矩阵。Further, the value of the matrix element corresponding to the first antenna port group can be determined based on the mutually orthogonal first vector, and the value of the matrix element corresponding to the second antenna port group can be determined based on the mutually orthogonal second vector. , to generate a first matrix. In this application, the matrix elements corresponding to the first antenna port group in the mutually orthogonal first vectors can be sequentially placed in the first layer to the first layer corresponding to the first antenna port group. Further, the matrix elements corresponding to the second antenna port group in the mutually orthogonal second vectors are sequentially placed in the I+1 to Lth layers corresponding to the second antenna port group. Further, the remaining matrix elements can be set to zero to obtain a first matrix.
需要说明的是，N天线端口的第一码字有多个，每个第一码字可以按照上述实施方式获取到一个或多个第一矩阵。也就是说任一码字可以对应有一个或多个第一矩阵。It should be noted that there are multiple first codewords for the N antenna port, and each first codeword can obtain one or more first matrices according to the above implementation. That is to say, any codeword can correspond to one or more first matrices.
针对N个天线端口与传输层数之间的对应关系为第一对应关系的情况下，对第一天线端口组对应的L层向量进行正交性判断并选取
Figure PCTCN2022087519-appb-000008
层相互正交的向量，将选取的
Figure PCTCN2022087519-appb-000009
层相互正交的向量中与第一天线端口组对应的元素分别置于部分天线相干传输码字中与第一天线端口组对应的第1至第
Figure PCTCN2022087519-appb-000010
层；对第二天线端口组对应的L层向量进行正交性判断并选取
Figure PCTCN2022087519-appb-000011
层相互正交的向量，将选取的
Figure PCTCN2022087519-appb-000012
层相互正交的向量中与第二天线端口组对应的元素分别置于部分天线相干传输码字中与第二天线端口组对应的第
Figure PCTCN2022087519-appb-000013
至第L层。 In the case where the correspondence between the N antenna ports and the number of transmission layers is the first correspondence, the L layer vector corresponding to the first antenna port group is judged on orthogonality and selected
Figure PCTCN2022087519-appb-000008
The vectors of the layers that are orthogonal to each other will be selected
Figure PCTCN2022087519-appb-000009
The elements corresponding to the first antenna port group in the mutually orthogonal vectors of the layers are respectively placed in the first to the first antenna port group corresponding to the partial antenna coherent transmission codeword.
Figure PCTCN2022087519-appb-000010
layer; judge the orthogonality of the L layer vector corresponding to the second antenna port group and select
Figure PCTCN2022087519-appb-000011
The vectors of the layers that are orthogonal to each other will be selected
Figure PCTCN2022087519-appb-000012
The elements corresponding to the second antenna port group in the mutually orthogonal vectors of the layers are respectively placed in the partial antenna coherent transmission codewords corresponding to the second antenna port group.
Figure PCTCN2022087519-appb-000013
Go to the L floor.
针对N个天线端口与传输层数之间的对应关系为第二对应关系的情况下，对第一天线端口组对应的L层向量进行正交性判断并选取
Figure PCTCN2022087519-appb-000014
层相互正交的向量，将选取的
Figure PCTCN2022087519-appb-000015
层相互正交的向量中与第一天线端口组对应的元素分别置于部分天线相干传输码字中与第一天线端口组对应的第1至第
Figure PCTCN2022087519-appb-000016
层；对第二天线端口组对应的L层向量进行正交性判断并选取
Figure PCTCN2022087519-appb-000017
层相互正交的向量，将选取的
Figure PCTCN2022087519-appb-000018
层相互正交的向量中与第二天线端口组对应的元素分别置于部分天线相干传输码字中与第二天线端口组对应的第
Figure PCTCN2022087519-appb-000019
至第L层。 In the case where the correspondence between the N antenna ports and the number of transmission layers is the second correspondence, perform orthogonality judgment on the L layer vector corresponding to the first antenna port group and select
Figure PCTCN2022087519-appb-000014
The vectors of the layers that are orthogonal to each other will be selected
Figure PCTCN2022087519-appb-000015
The elements corresponding to the first antenna port group in the mutually orthogonal vectors of the layers are respectively placed in the first to the first antenna port group corresponding to the partial antenna coherent transmission codeword.
Figure PCTCN2022087519-appb-000016
layer; judge the orthogonality of the L layer vector corresponding to the second antenna port group and select
Figure PCTCN2022087519-appb-000017
The vectors of the layers that are orthogonal to each other will be selected
Figure PCTCN2022087519-appb-000018
The elements corresponding to the second antenna port group in the mutually orthogonal vectors of the layers are respectively placed in the partial antenna coherent transmission codewords corresponding to the second antenna port group.
Figure PCTCN2022087519-appb-000019
Go to the L floor.
下面对基于8天线端口8层对应的第一码字，确定部分天线相干传输的第二码字的过程进行解释说明。The following explains the process of determining the second codeword for coherent transmission of some antennas based on the first codeword corresponding to the 8-layer 8-antenna port.
例如，MIMO上行传输8天线端口8层预编码码本中某个所有天线相干传输码字为：For example, a coherent transmission codeword for all antennas in the 8-layer precoding codebook for MIMO uplink transmission of 8 antenna ports is:
Figure PCTCN2022087519-appb-000020
Figure PCTCN2022087519-appb-000020
将所有天线端口分为两个天线端口组，其中每个天线端口组中的所有天线相干传输，包括但不限于以下上述实施例中的a)至f)中几种分组方式。Divide all antenna ports into two antenna port groups, where all antennas in each antenna port group transmit coherently, including but not limited to several grouping methods a) to f) in the above-mentioned embodiments below.
a)天线端口{1,3,5,7}为第一组，天线端口{2,4,6,8}为第二组，即第1至第4层在天线端口{1,3,5,7}传输，第5至第8层在天线端口{2,4,6,8}传输。a) Antenna ports {1,3,5,7} are the first group, and antenna ports {2,4,6,8} are the second group, that is, layers 1 to 4 are at the antenna ports {1,3,5 ,7} transmission, layers 5 to 8 are transmitted at antenna ports {2,4,6,8}.
b)天线端口{2,4,6,8}为第一组，天线端口{1,3,5,7}为第二组，即第1至第4层在天线端口{2,4,6,8}传输，第5至第8层在天线端口{1,3,5,7}传输。b) Antenna ports {2,4,6,8} are the first group, and antenna ports {1,3,5,7} are the second group, that is, layers 1 to 4 are at the antenna ports {2,4,6 ,8} transmission, layers 5 to 8 are transmitted at antenna ports {1,3,5,7}.
c)天线端口{1,2,5,6}为第一组，天线端口{3,4,7,8}为第二组，即第1至第4层在天线端口{1,2,5,6}传输，第5至第8层在天线端口{3,4,7,8}传输。c) Antenna ports {1,2,5,6} are the first group, and antenna ports {3,4,7,8} are the second group, that is, layers 1 to 4 are at the antenna ports {1,2,5 ,6} transmission, layers 5 to 8 are transmitted at antenna ports {3,4,7,8}.
d)天线端口{3,4,7,8}为第一组，天线端口{1,2,5,6}为第二组，即第1至第4层在天线端口{3,4,7,8}传输，第5至第8层在天线端口{1,2,5,6}传输。d) Antenna ports {3,4,7,8} are the first group, and antenna ports {1,2,5,6} are the second group, that is, layers 1 to 4 are at the antenna ports {3,4,7 ,8} transmission, layers 5 to 8 are transmitted at antenna ports {1,2,5,6}.
e)天线端口{1,2,3,4}为第一组，天线端口{5,6,7,8}为第二组，即第1至第4层在天线端口{1,2,3,4}传输，第5至第8层在天线端口{5,6,7,8}传输。e) Antenna ports {1,2,3,4} are the first group, and antenna ports {5,6,7,8} are the second group, that is, layers 1 to 4 are at the antenna ports {1,2,3 ,4} transmission, layers 5 to 8 are transmitted at antenna ports {5,6,7,8}.
f)天线端口{5,6,7,8}为第一组，天线端口{1,2,3,4}为第二组，即第1至第4层在天线端口{5,6,7,8}传输，第5至第8层在天线端口{1,2,3,4}传输。f) Antenna ports {5,6,7,8} are the first group, and antenna ports {1,2,3,4} are the second group, that is, layers 1 to 4 are at the antenna ports {5,6,7 ,8} transmission, layers 5 to 8 are transmitted at antenna ports {1,2,3,4}.
需要说明的是，对于任意一种天线端口分组方式，可以判断每个天线端口组中各层之间的正交性，基于正交性判断结果，确定任一第一码字对应的至少一个第一矩阵。It should be noted that for any antenna port grouping method, the orthogonality between the layers in each antenna port group can be judged, and based on the orthogonality judgment result, at least one third codeword corresponding to any first codeword can be determined. a matrix.
按照MIMO上行传输N天线端口L层预编码码本部分天线相干传输码字设计方案1：将所有天线端口分为两个天线端口组后，此时MIMO上行传输8天线端口8层预编码码本中的所有天线相干传输码字矩阵也同样分为两个子矩阵，每个子矩阵为4×8的矩阵，并判断每个天线端口组中各层之间的正交性，如下所示：According to the MIMO uplink transmission N antenna port L layer precoding codebook part of the antenna coherent transmission codeword design scheme 1: After dividing all antenna ports into two antenna port groups, at this time, the MIMO uplink transmission 8 antenna port 8 layer precoding codebook All antenna coherent transmission codeword matrices in are also divided into two sub-matrices, each sub-matrix is a 4×8 matrix, and the orthogonality between the layers in each antenna port group is determined, as shown below:
可选地，针对天线端口分组方式a)，其第1层与第2层不正交，第3层与第4层不正交，第5层与第6层不正交，第7层与第8层不正交，其余任意两层均互相正交。Optionally, for the antenna port grouping method a), the first layer and the second layer are not orthogonal, the third layer and the fourth layer are not orthogonal, the fifth layer and the sixth layer are not orthogonal, and the seventh layer and the The 8th layer is not orthogonal, and any other two layers are orthogonal to each other.
可选地，针对天线端口分组方式b)，其第1层与第2层不正交，第3层与第4层不正交，第5层与第6层不正交，第7层与第8层不正交，其余任意两层均互相正交。Optionally, for the antenna port grouping method b), the first layer and the second layer are not orthogonal, the third layer and the fourth layer are not orthogonal, the fifth layer and the sixth layer are not orthogonal, and the seventh layer and the The 8th layer is not orthogonal, and any other two layers are orthogonal to each other.
可选地，针对天线端口分组方式c)，其第1层与第3层不正交，第2层与第4层不正交，第5层与第7层不正交，第6层与第8层不正交，其余任意两层均互相正交。Optionally, for the antenna port grouping method c), the first layer and the third layer are not orthogonal, the second layer and the fourth layer are not orthogonal, the fifth layer and the seventh layer are not orthogonal, and the sixth layer is not orthogonal to The 8th layer is not orthogonal, and any other two layers are orthogonal to each other.
可选地，针对天线端口分组方式d)，其第1层与第3层不正交，第2层与第4层不正交，第5层与第7层不正交，第6层与第8层不正交，其余任意两层均互相正交。Optionally, for the antenna port grouping method d), the first layer and the third layer are not orthogonal, the second layer and the fourth layer are not orthogonal, the fifth layer and the seventh layer are not orthogonal, and the sixth layer and the The 8th layer is not orthogonal, and any other two layers are orthogonal to each other.
可选地，针对天线端口分组方式e)，其第1层与第5层不正交，第2层与第6层不正交，第3层与第7层不正交，第4层与第8层不正交，其余任意两层均互相正交。Optionally, for the antenna port grouping method e), the first layer and the fifth layer are not orthogonal, the second layer and the sixth layer are not orthogonal, the third layer and the seventh layer are not orthogonal, and the fourth layer is not orthogonal to The 8th layer is not orthogonal, and any other two layers are orthogonal to each other.
可选地，针对天线端口分组方式f)，其第1层与第5层不正交，第2层与第6层不正交，第3层与第7层不正交，第4层与第8层不正交，其余任意两层均互相正交。Optionally, for the antenna port grouping method f), the first layer and the fifth layer are not orthogonal, the second layer and the sixth layer are not orthogonal, the third layer and the seventh layer are not orthogonal, and the fourth layer is not orthogonal to The 8th layer is not orthogonal, and any other two layers are orthogonal to each other.
进一步地，可以获取第一天线端口组对应的I层相互正交的第一向量，以及第二天线端口组对应的J层相互正交的第二向量。Further, the mutually orthogonal first vectors of the I layer corresponding to the first antenna port group, and the mutually orthogonal second vectors of the J layer corresponding to the second antenna port group can be obtained.
示例性说明，针对天线端口分组方式a)，其第1层与第2层不正交，第3层与第4层不正交，第5层与第6层不正交，第7层与第8层不正交，其余任意两层均互相正交。因此，对于MIMO上行传输8天线端口8层对应的每一个所有天线全相干传输的第一码字，可以在第1层和第2层中任意选取一列，将第一天线端口组对应的元素置于第1层，在第3层和第4层中任意选取一列，将第一天线端口组对应的元素置于第2层，在第5层和第6层中任意选取一列，将第一天线端口组对应的元素置于第3层，在第7层和第8层中任意选取一列，将第一天线端口组对应的元素置于第4层。For example, regarding the antenna port grouping method a), the first layer and the second layer are not orthogonal, the third layer and the fourth layer are not orthogonal, the fifth layer and the sixth layer are not orthogonal, and the seventh layer and the The 8th layer is not orthogonal, and any other two layers are orthogonal to each other. Therefore, for the first codeword of fully coherent transmission by all antennas corresponding to the 8-layer MIMO uplink transmission 8-antenna port, you can arbitrarily select a column in layer 1 and layer 2, and set the element corresponding to the first antenna port group. On layer 1, select any column from layers 3 and 4, and place the elements corresponding to the first antenna port group on layer 2. Select any column from layers 5 and 6, and place the elements corresponding to the first antenna port group. The elements corresponding to the port group are placed on the 3rd layer, any column is selected from the 7th and 8th layers, and the elements corresponding to the first antenna port group are placed on the 4th layer.
进一步地，针对N天线端口的分组方式a)，其第1层与第2层不正交，第3层与第4层不正交，第5层与第6层不正交，第7层与第8层不正交，其余任意两层均互相正交。因此，对于MIMO上行传输8天线端口8层对应的每一个所有天线全相干传输的第一码字，可以在第1层和第2层中任意选取一列，将第二天线端口组对应的元素置于第5层，在第3层和第4层中任意选取一列，将第二天线端口组对应的元素置于第6层，在第5层和第6层中任意选取一列，将第二天线端口组对应的元素置于第7层，在第7层和第8层中任意选取一列，将第二天线端口组对应的矩阵元素置于第8层。Furthermore, for the grouping method a) of N antenna ports, the first layer and the second layer are not orthogonal, the third layer and the fourth layer are not orthogonal, the fifth layer and the sixth layer are not orthogonal, and the seventh layer is not orthogonal. It is not orthogonal to the 8th layer, and any other two layers are orthogonal to each other. Therefore, for the first codeword of fully coherent transmission by all antennas corresponding to the 8-layer MIMO uplink transmission 8-antenna port, you can arbitrarily select a column in the 1st and 2nd layers, and set the elements corresponding to the second antenna port group. On layer 5, select any column from layers 3 and 4, and place the elements corresponding to the second antenna port group on layer 6. Select any column from layers 5 and 6, and place the elements corresponding to the second antenna port group. The elements corresponding to the port group are placed on the 7th layer. Select a column from the 7th and 8th layers and place the matrix elements corresponding to the second antenna port group on the 8th layer.
进一步地，可以将剩余的矩阵元素置零，得到第一矩阵。Further, the remaining matrix elements can be set to zero to obtain the first matrix.
可选地，当选取第1、3、5、7层时，可以获取对应的第一矩阵：Optionally, when selecting layers 1, 3, 5, and 7, the corresponding first matrix can be obtained:
Figure PCTCN2022087519-appb-000021
Figure PCTCN2022087519-appb-000021
S33，对第一矩阵进行能量归一化，得到与任一第一码字对应的部分天线相干传输的第二码字。S33: Perform energy normalization on the first matrix to obtain the second codeword of partial antenna coherent transmission corresponding to any first codeword.
在获取到第一矩阵后，可以对第一矩阵进行能量归一化，可以与任一第一码字对应的部分天线相干传输的第二码字。After obtaining the first matrix, the energy of the first matrix can be normalized, and the second codeword can be coherently transmitted with the partial antenna corresponding to any first codeword.
可选地，可以设置第二码字对应的归一化系数为
Figure PCTCN2022087519-appb-000022
Optionally, the normalization coefficient corresponding to the second codeword can be set as
Figure PCTCN2022087519-appb-000022
下面以8天线端口8层对应的部分天线相干传输的第二码字进行解释说明。The following explanation is based on the second codeword of partial antenna coherent transmission corresponding to the 8th layer of 8antenna ports.
需要说明的是，当N＝8、L＝8时，则第二码字对应的归一化系数为
Figure PCTCN2022087519-appb-000023
It should be noted that when N=8 and L=8, the normalization coefficient corresponding to the second codeword is
Figure PCTCN2022087519-appb-000023
进一步地，与任一第一码字对应的部分天线相干传输的第二码字CB即为：Further, the second codeword CB of partial antenna coherent transmission corresponding to any first codeword is:
Figure PCTCN2022087519-appb-000024
Figure PCTCN2022087519-appb-000024
其中，b1∈{1,2}，b2∈{3,4}，b3∈{5,6}，b4∈{7,8}。需要说明的是，此时第二码字的能量归一化系数需要对应计算，即此时归一化系数为
Figure PCTCN2022087519-appb-000025
对于任意的{b 1,b 2,b 3,b 4}组合，共有2 4＝16种组合方式。也就是说，对于任意的列向量选取组合，共有2 4＝16种选取方式，因此，对于上述MIMO上行传输8天线端口8层预编码码本中的部分天线相干传输码字，共有16种设计方案。 Among them, b1∈{1,2}, b2∈{3,4}, b3∈{5,6}, b4∈{7,8}. It should be noted that at this time, the energy normalization coefficient of the second codeword needs to be calculated accordingly, that is, the normalization coefficient at this time is
Figure PCTCN2022087519-appb-000025
For any combination of {b 1 , b 2 , b 3 , b 4 }, there are 2 4 = 16 combinations. That is to say, for any combination of column vector selection, there are 2 4 =16 selection methods. Therefore, there are 16 designs for partial antenna coherent transmission codewords in the above-mentioned MIMO uplink transmission 8-antenna port 8-layer precoding codebook. plan.
本申请实施例中，针对N天线端口的第一码字中任一第一码字，根据任一第一码字、第一天线端口组和第二天线端口组，确定任一第一码字对应的至少一个第一矩阵，对第一矩阵进行能量归一化，得到与任一第一码字对应的部分天线相干传输的第二码字。可以基于所有天线全相干传输码字设计部分天线相干传输码字，MIMO上行支持8天线端口1层至8层传输的需求，进而对上行MIMO技术进一步增强。In the embodiment of the present application, for any first codeword among the first codewords of N antenna ports, any first codeword is determined based on any first codeword, the first antenna port group and the second antenna port group. Corresponding to at least one first matrix, the first matrix is energy normalized to obtain a second codeword corresponding to any first codeword that is coherently transmitted by a partial antenna. Some antenna coherent transmission codewords can be designed based on the fully coherent transmission codewords of all antennas. MIMO uplink supports the transmission requirements of layer 1 to layer 8 of 8 antenna ports, thereby further enhancing the uplink MIMO technology.
请参见图4，图4是本申请实施例提供的MIMO上行传输部分天线相干传输码字的确定方法的流程示意图。如图4所示，该方法可以包括但不限于如下步骤：Please refer to Figure 4. Figure 4 is a schematic flowchart of a method for determining a coherent transmission codeword for the MIMO uplink transmission part of the antenna provided by an embodiment of the present application. As shown in Figure 4, the method may include but is not limited to the following steps:
S41，确定MIMO上行传输对应的N/2天线端口的所有天线全相干传输的第一码字。S41. Determine the first codeword of fully coherent transmission by all antennas of N/2 antenna ports corresponding to MIMO uplink transmission.
需要说明的是，本申请中对于N/2天线端口的第一码字的设置不作限定，可以根据实际情况进行选取。It should be noted that the setting of the first codeword of the N/2 antenna port is not limited in this application and can be selected according to the actual situation.
可选地，可以基于现有协议中约定的MIIMO上行传输N/2天线端口预编码码本中所有天线全相干传输码字作为N/2天线端口的第一码字。Optionally, all antenna fully coherent transmission codewords in the N/2 antenna port precoding codebook for MIIMO uplink transmission as agreed in the existing protocol can be used as the first codeword of the N/2 antenna port.
可选地，可以基于现有协议中约定的MIIMO下行传输N/2天线端口预编码码本中所有天线全相干传输码字作为N/2天线端口的第一码字。Optionally, all antenna fully coherent transmission codewords in the N/2 antenna port precoding codebook for MIIMO downlink transmission as agreed in the existing protocol can be used as the first codeword of the N/2 antenna port.
可选地，可以预先配置的N/2天线端口预编码码本中所有天线全相干传输码字作为N/2天线端口的第一码字。Optionally, the fully coherent transmission codewords of all antennas in the preconfigured N/2 antenna port precoding codebook can be used as the first codeword of the N/2 antenna ports.
S42，根据L，从N/2天线端口的第一码字中，确定N/2天线端口K层的第一码字，N/2天线端口K层的第一码字，用于扩展得到N天线端口L层的部分天线相干传输的第二码字，K层小于或者等于L。S42, according to L, determine the first codeword of the K layer of the N/2 antenna port from the first codeword of the N/2 antenna port, and the first codeword of the K layer of the N/2 antenna port, which is used to expand to obtain N The second codeword is coherently transmitted by some antennas in the L layer of the antenna port, and the K layer is less than or equal to L.
下面对K的确定过程进行解释说明。The determination process of K is explained below.
可选地，响应于L大于N/2，可以对L/2进行取整操作，得到第一天线端口组对应的K 1，以及第二天线端口组对应的K 2，其中，N个天线端口与传输层数之间的对应关系为第一对应关系时K 1为对L/2向下取整得到，K 2为对L/2向上取整得到，或者N个天线端口与传输层数之间的对应关系为第二对应关系时K 1为对L/2向上取整得到，K 2为对L/2向下取整得到，K 1和K 2之和等于L。 Optionally, in response to L being greater than N/2, L/2 can be rounded to obtain K 1 corresponding to the first antenna port group and K 2 corresponding to the second antenna port group, where N antenna ports When the correspondence relationship with the number of transmission layers is the first correspondence relationship, K 1 is obtained by rounding down L/2, K 2 is obtained by rounding up L/2, or the sum of N antenna ports and the number of transmission layers When the corresponding relationship is the second correspondence, K 1 is obtained by rounding up L/2, K 2 is obtained by rounding down L/2, and the sum of K 1 and K 2 is equal to L.
也就是说，N个天线端口与传输层数之间的对应关系为第一对应关系的情况下，
Figure PCTCN2022087519-appb-000026
Figure PCTCN2022087519-appb-000027
N个天线端口与传输层数之间的对应关系为第二对应关系的情况下，
Figure PCTCN2022087519-appb-000028
That is to say, when the correspondence between N antenna ports and the number of transmission layers is the first correspondence,
Figure PCTCN2022087519-appb-000026
Figure PCTCN2022087519-appb-000027
When the correspondence between N antenna ports and the number of transmission layers is the second correspondence,
Figure PCTCN2022087519-appb-000028
举例而言，若N＝8，L大于N/2，则L的取值范围为5～7，例如，L＝5，则针对N个天线端口与传输层数之间的对应关系为第一对应关系，K 1为对5/2向下取整得到，即K 1为2，K 2为对5/2向上取整得到，即K 2为3；针对N个天线端口与传输层数之间的对应关系为第二对应关系，K 1为对5/2向上取整得到，即K 1为3，K 2为对5/2向下取整得到，即K 2为2。 For example, if N=8 and L is greater than N/2, the value range of L is 5 to 7. For example, if L=5, the corresponding relationship between N antenna ports and the number of transmission layers is the first Corresponding relationship, K 1 is obtained by rounding down 5/2, that is, K 1 is 2, and K 2 is obtained by rounding up 5/2, that is, K 2 is 3; for N antenna ports and the number of transmission layers The corresponding relationship between is the second corresponding relationship. K 1 is obtained by rounding up 5/2, that is, K 1 is 3, and K 2 is obtained by rounding down 5/2, that is, K 2 is 2.
可选地，响应于L小于或者等于N/2且大于1，确定K为L，并对K/2进行取整操作，得到第一天线端口组对应的K 3，其中，N个天线端口与传输层数之间的对应关系为第一对应关系，K 3对K/2向下取整得到，或者N个天线端口与传输层数之间的对应关系为第二对应关系，K 3对K/2向上取整得到。也就是说，N个天线端口与传输层数之间的对应关系为第一对应关系的情况下，
Figure PCTCN2022087519-appb-000029
N个天线端口与传输层数之间的对应关系为第二对应关系的情况下，
Figure PCTCN2022087519-appb-000030
Optionally, in response to L being less than or equal to N/2 and greater than 1, determine K to be L, and perform a rounding operation on K/2 to obtain K 3 corresponding to the first antenna port group, where the N antenna ports are The correspondence between the number of transmission layers is the first correspondence, K 3 is rounded down to K/2, or the correspondence between the N antenna ports and the number of transmission layers is the second correspondence, K 3 is rounded down to K /2 is obtained by rounding up. That is to say, when the correspondence between N antenna ports and the number of transmission layers is the first correspondence,
Figure PCTCN2022087519-appb-000029
When the correspondence between N antenna ports and the number of transmission layers is the second correspondence,
Figure PCTCN2022087519-appb-000030
举例而言，若N＝8，L小于N/2，则L的取值范围为2～4，例如，L＝3，则K为3，针对第一对应关系，K 3为对3/2向下取整得到，即K 3为1；针对第二对应关系，K 3为对3/2向上取整得到，即K 3为2。 For example, if N=8 and L is less than N/2, the value range of L is 2 to 4. For example, if L=3, then K is 3. For the first correspondence, K 3 is the pair 3/2 It is obtained by rounding down, that is, K 3 is 1; for the second correspondence relationship, K 3 is obtained by rounding up 3/2, that is, K 3 is 2.
可选地，响应于L＝1，确定K＝1。Optionally, in response to L=1, K=1 is determined.
S43，基于N/2天线端口K层的第一码字、第一天线端口组和第二天线端口组，确定部分天线相干传输的第二码字。S43. Based on the first codeword of the N/2 antenna port K layer, the first antenna port group and the second antenna port group, determine the second codeword of the coherent transmission of the partial antenna.
下面对基于L大于N/2，确定部分天线相干传输的第二码字的过程进行解释说明。The following explains the process of determining the second codeword for coherent transmission by partial antennas based on the fact that L is greater than N/2.
可以针对N/2天线端口K 1层对应的任一第一码字，将第1层至第K 1层的矩阵元素，依次置于第一天线端口组对应的第1层至第K 1层。 For any first codeword corresponding to the N/2 antenna port K 1 layer, the matrix elements from the 1st layer to the K 1th layer can be placed in sequence from the 1st layer to the K 1th layer corresponding to the first antenna port group. .
可选地，可以针对N/2天线端口K 2层对应的任一第一码字，将第1层至第K 2层的元素乘以设定系数后，依次置于第二天线端口组对应的第K 1+1层至第L层。 Optionally, for any first codeword corresponding to the N/2 antenna port K 2 layer, the elements from the 1st layer to the K 2 layer can be multiplied by the set coefficient and then placed in sequence corresponding to the second antenna port group. The K 1 +1 to L floors.
进一步地，可以将剩余的矩阵元素置零，得到第二矩阵，并对第二矩阵进行能量归一化，得到与任一第一码字对应的部分天线相干传输的第二码字。Further, the remaining matrix elements can be set to zero to obtain a second matrix, and the second matrix can be energy normalized to obtain a second codeword of partial antenna coherent transmission corresponding to any first codeword.
进一步地，可以基于第二码字对应的归一化系数对第二矩阵进行能量归一化，得到任一第一码字对应的部分天线相干传输的第二码字。Further, the energy of the second matrix can be normalized based on the normalization coefficient corresponding to the second codeword to obtain the second codeword of partial antenna coherent transmission corresponding to any first codeword.
基于L小于或者等于N/2且大于1，确定部分天线相干传输的第二码字的过程进行解释说明。可选地，针对N/2天线端口K层对应的任一第一码字，将第1层至第K 3层的矩阵元素，依次置于第一天线端口组对应的第1层至第K 3层，以及将第K 3+1层至第K层的元素乘以设定系数后，依次置于第二天线端口组对应的第K 3+1层至第K层。 Based on the fact that L is less than or equal to N/2 and greater than 1, the process of determining the second codeword of partial antenna coherent transmission is explained. Optionally, for any first codeword corresponding to the K layer of N/2 antenna ports, the matrix elements of the 1st to Kth layers are sequentially placed in the 1st to Kth layers corresponding to the first antenna port group. 3 layers, and after multiplying the elements from the K 3 +1 to Kth layers by the set coefficient, they are placed in the K 3 +1 to Kth layers corresponding to the second antenna port group in turn.
进一步地，可以将剩余的矩阵元素置零，得到第三矩阵，并对第三矩阵进行能量归一化，得到与任一第一码字对应的部分天线相干传输的第二码字。Further, the remaining matrix elements can be set to zero to obtain a third matrix, and the energy of the third matrix can be normalized to obtain a second codeword of partial antenna coherent transmission corresponding to any first codeword.
进一步地，可以基于第二码字对应的归一化系数对第三矩阵进行能量归一化，得到任一第一码字对应的部分天线相干传输的第二码字。Further, the energy of the third matrix can be normalized based on the normalization coefficient corresponding to the second codeword to obtain the second codeword of partial antenna coherent transmission corresponding to any first codeword.
针对N个天线端口与传输层数之间的对应关系为第一对应关系的情况下，对于4天线端口
Figure PCTCN2022087519-appb-000031
层预编码码本中任意的所有天线相干传输码字，将第1层至第
Figure PCTCN2022087519-appb-000032
层的元素分别置于8天线端口L层预编码码本部分天线相干传输码字中第一天线端口组对应的第1层至第
Figure PCTCN2022087519-appb-000033
层；对于4天线端口
Figure PCTCN2022087519-appb-000034
层预编码码本中任意的所有天线相干传输码字，将第1层至第
Figure PCTCN2022087519-appb-000035
层的元素乘以设定系数x后分别置于8天线端口L层预编码码本部分天线相干传输码字中第二天线端口组对应的第
Figure PCTCN2022087519-appb-000036
层至第L层。进一步地，可以将剩余的矩阵元素置零，得到第二矩阵或第三矩阵。 For the case where the correspondence between N antenna ports and the number of transmission layers is the first correspondence, for 4 antenna ports
Figure PCTCN2022087519-appb-000031
All antenna coherent transmission codewords in any layer precoding codebook, from layer 1 to layer 1
Figure PCTCN2022087519-appb-000032
The elements of the layer are respectively placed in the first layer to the first layer corresponding to the first antenna port group in the antenna coherent transmission codeword of the 8-antenna port L layer precoding codebook part.
Figure PCTCN2022087519-appb-000033
layer; for 4-antenna ports
Figure PCTCN2022087519-appb-000034
All antenna coherent transmission codewords in any layer precoding codebook, from layer 1 to layer 1
Figure PCTCN2022087519-appb-000035
The elements of the layer are multiplied by the set coefficient
Figure PCTCN2022087519-appb-000036
to the Lth floor. Further, the remaining matrix elements can be set to zero to obtain the second matrix or the third matrix.
针对N个天线端口与传输层数之间的对应关系为第二对应关系的情况下，对于4天线端口
Figure PCTCN2022087519-appb-000037
层预编码码本中任意的所有天线相干传输码字，将第1层至第
Figure PCTCN2022087519-appb-000038
层的元素分别置于8天线端口L层预编码码本部分天线相干传输码字中第一天线端口组对应的第1层至第
Figure PCTCN2022087519-appb-000039
层；对于4天线端口
Figure PCTCN2022087519-appb-000040
层预编码码本中任意的所有天线相干传输码字，将第1层至第
Figure PCTCN2022087519-appb-000041
层的元素乘以设定系数x后分别置于8天线端口L层预编码码本部分天线相干传输码字中第二天线端口组对应的第
Figure PCTCN2022087519-appb-000042
层至第L层。进一步地，可以将剩余的矩阵元素置零，得到第二矩阵或第三矩阵。 For the case where the correspondence between N antenna ports and the number of transmission layers is the second correspondence, for 4 antenna ports
Figure PCTCN2022087519-appb-000037
All antenna coherent transmission codewords in any layer precoding codebook, from layer 1 to layer 1
Figure PCTCN2022087519-appb-000038
The elements of the layer are respectively placed in the first layer to the first layer corresponding to the first antenna port group in the antenna coherent transmission codeword of the 8-antenna port L layer precoding codebook part.
Figure PCTCN2022087519-appb-000039
layer; for 4-antenna ports
Figure PCTCN2022087519-appb-000040
All antenna coherent transmission codewords in any layer precoding codebook, from layer 1 to layer 1
Figure PCTCN2022087519-appb-000041
The elements of the layer are multiplied by the set coefficient
Figure PCTCN2022087519-appb-000042
to the Lth floor. Further, the remaining matrix elements can be set to zero to obtain the second matrix or the third matrix.
需要说明的是，系数的取值集合{1,-1,j,-j}，可以设定系数为集合中任意一个元素。It should be noted that the coefficient value set is {1,-1,j,-j}, and the coefficient can be set to any element in the set.
可选地，可以设置第二码字对应的归一化系数为
Figure PCTCN2022087519-appb-000043
Optionally, the normalization coefficient corresponding to the second codeword can be set as
Figure PCTCN2022087519-appb-000043
可选地，响应于L为1，则可以将N/2天线端口1层的第一码字直接置于第一层，并将剩余的矩阵元素置零，得到第四矩阵，并对第四矩阵进行能量归一化，得到与任一第一码字对应的部分天线相干传输的第二码字。Alternatively, in response to L being 1, the first codeword of layer 1 of the N/2 antenna port can be directly placed in the first layer, and the remaining matrix elements are set to zero to obtain the fourth matrix, and the fourth matrix The matrix is energy normalized to obtain the second codeword of partial antenna coherent transmission corresponding to any first codeword.
下面以4天线端口4层所有天线全相干传输的第一码字，确定8天线端口4层部分天线相干传输的第二码字为例进行解释说明。The following explanation takes the first codeword of fully coherent transmission by all antennas in the 4th layer of 4-antenna ports and the second codeword of the coherent transmission of partial antennas in the 4th layer of 8-antenna ports as examples for explanation.
Figure PCTCN2022087519-appb-000044
Figure PCTCN2022087519-appb-000044
可选地，针对N个天线端口与传输层数之间的对应关系为第一对应关系，可以设置天线端口{1,3,5,7}为第一天线端口组，天线端口{2,4,6,8}为天线端口组第二组。则此时将第1层至第4层的元素分别置于第一天线端口组对应的第1层至第4层的位置。Optionally, for the first corresponding relationship between the N antenna ports and the number of transmission layers, the antenna ports {1, 3, 5, 7} can be set as the first antenna port group, and the antenna ports {2, 4 ,6,8} is the second group of antenna port group. At this time, the elements of the first to fourth layers are respectively placed at the positions of the first to fourth layers corresponding to the first antenna port group.
需要说明的是，系数的取值集合{1,-1,j,-j}，设定系数为集合中任意一个元素。It should be noted that the coefficient value set is {1,-1,j,-j}, and the coefficient is set to be any element in the set.
可选地，可以将第1层至第4层的元素乘以系数-1后，分别置于第二天线端口组对应的第5层至第8层的位置。Optionally, the elements of the first to fourth layers can be multiplied by a coefficient of -1 and then placed at the positions of the fifth to eighth layers corresponding to the second antenna port group.
进一步地，可以将剩余的矩阵元素置零，得到第二矩阵，并对第二矩阵进行能量归一化，得到与任一第一码字对应的部分天线相干传输的第二码字。Further, the remaining matrix elements can be set to zero to obtain a second matrix, and the second matrix can be energy normalized to obtain a second codeword of partial antenna coherent transmission corresponding to any first codeword.
可选地，可以设置第二码字对应的归一化系数为
Figure PCTCN2022087519-appb-000045
Optionally, the normalization coefficient corresponding to the second codeword can be set as
Figure PCTCN2022087519-appb-000045
4天线端口4层所有天线全相干传输的第一码字，确定出的8天线端口8层的部分天线相干传输的第二码字为：The first codeword for fully coherent transmission by all antennas on the 4th layer of the 4-antenna port, and the determined second codeword for coherent transmission by some antennas on the 8th layer of the 8-antenna port are:
Figure PCTCN2022087519-appb-000046
Figure PCTCN2022087519-appb-000046
本申请实施例中，根据L，从N/2天线端口的第一码字中，确定N/2天线端口K层的第一码字，N/2天线端口K层的第一码字，用于扩展得到N天线端口L层的部分天线相干传输的第二码字，K层小于或者等于L，基于N/2天线端口K层的第一码字、第一天线端口组和第二天线端口组，确定部分天线相干传输的第二码字。本申请可以提取所有天线全相干传输码字的特征，并通过选取相互正交的层，并调整其结构，设计部分天线相干传输码字，可以支持8天线端口1层至8层传输的需求，进而对上行MIMO技术进一步增强。In the embodiment of the present application, according to L, the first codeword of the K layer of the N/2 antenna port is determined from the first codeword of the N/2 antenna port, and the first codeword of the K layer of the N/2 antenna port is determined by Expanded to obtain the second codeword of partial antenna coherent transmission of the L layer of N antenna ports, the K layer is less than or equal to L, based on the first codeword of the K layer of N/2 antenna ports, the first antenna port group and the second antenna port group to determine the second codeword for coherent transmission by some antennas. This application can extract the characteristics of fully coherent transmission codewords of all antennas, and by selecting mutually orthogonal layers and adjusting their structures, designing some antenna coherent transmission codewords can support the transmission requirements of layer 1 to layer 8 of 8 antenna ports. This further enhances the uplink MIMO technology.
请参见图5，图5是本申请实施例提供的MIMO上行传输部分天线相干传输码字的确定方法的流程示意图。如图5所示，该方法可以包括但不限于如下步骤：Please refer to Figure 5. Figure 5 is a schematic flowchart of a method for determining a coherent transmission codeword for the MIMO uplink transmission part of the antenna provided by an embodiment of the present application. As shown in Figure 5, the method may include but is not limited to the following steps:
S51，基于N天线端口或N/2天线端的第一码字、第一天线端口组和第二天线端口组，确定N天线端口N层的部分天线相干传输的第二码字。S51. Based on the first codeword of the N antenna port or the N/2 antenna port, the first antenna port group, and the second antenna port group, determine the second codeword of the partial antenna coherent transmission of the N layer of the N antenna port.
关于基于N天线端口的第一码字或N/2天线端口的第一码、第一天线端口组和第二天线端口组，确定N天线端口N层的部分天线相干传输的第二码字，可参见上述实施例中相关内容的记载，此处不再赘述。Regarding the first codeword based on the N antenna port or the first code of the N/2 antenna port, the first antenna port group and the second antenna port group, determine the second codeword of the partial antenna coherent transmission of the N layer of the N antenna port, Please refer to the records of relevant contents in the above embodiments, which will not be described again here.
S52，基于N天线端口N层的部分天线相干传输的第二码字，确定N天线端口L层的部分天线相干传输的第二码字，L小于N。S52. Based on the second codeword of the partial antenna coherent transmission of the N layer of the N antenna port, determine the second codeword of the partial antenna coherent transmission of the L layer of the N antenna port. L is less than N.
作为一种可能实现的方式，可以从N天线端口N层部分天线相干传输的第二码字中，选取L列向量，基于选取的L列向量，确定N天线端口L层的部分天线相干传输的第二码字。As a possible implementation method, the L column vector can be selected from the second codeword of the partial antenna coherent transmission of the N layer of the N antenna port, and based on the selected L column vector, the partial antenna coherent transmission of the L layer of the N antenna port can be determined. The second code word.
需要说明的是，本申请中对于选取L列向量的具体方式不作限定，可以根据实际情况进行选取。It should be noted that the specific method of selecting the L column vector is not limited in this application, and the selection can be made according to the actual situation.
可选地，可以随机选取L列；可选地，根据协议约定选取指定的L列；可选地，可以根据设定选取规则选取L列，例如选取使得信噪比(Signal-to-Noise Ratio，SNR)或吞吐量等一个或多个指标最大化的L列。Optionally, the L column can be randomly selected; optionally, the specified L column can be selected according to the agreement; optionally, the L column can be selected according to the set selection rules, such as selecting such that the signal-to-noise ratio (Signal-to-Noise Ratio) , SNR) or throughput and other indicators to maximize the L column.
需要说明的是，从第一天线端口组对应的第1至第N/2层选取的列数，与从第二天线端口组对应的第N/2+1至第N层选取的列数，需要满足两个列数之差的绝对值小于或者等于1。It should be noted that the number of columns selected from the 1st to N/2th layers corresponding to the first antenna port group and the number of columns selected from the N/2+1 to Nth layers corresponding to the second antenna port group, It is required that the absolute value of the difference between the two column numbers is less than or equal to 1.
下面以8天线端口8层的部分天线相干传输的第二码字，确定8天线端口6层的部分天线相干传输的第二码字的过程进行解释说明。The following explains the process of determining the second codeword of partial antenna coherent transmission of 8-antenna ports and 6-layers using the second codeword of partial antenna coherent transmission of 8-antenna ports and 6-layer.
可选地，假设8天线端口8层的部分天线相干传输的第二码字为：Alternatively, assume that the second codeword of coherent transmission by some antennas in the 8th layer of 8antenna ports is:
Figure PCTCN2022087519-appb-000047
Figure PCTCN2022087519-appb-000047
进一步，可以选取8天线端口8层的部分天线相干传输的第二码字8列向量中的6列向量，且从前4层选取的列数与从后4层选取的列数的差值的绝对值小于等于1，可以选取8天线端口8层的部分天线相干传输的第二码字中的第1、2、3、5、6、8层，并设置第二码字的归一化系数为
Figure PCTCN2022087519-appb-000048
则可以构建8天线端口6层预的部分天线相干传输的第二码字： Furthermore, 6 column vectors among the 8 column vectors of the second codeword coherently transmitted by partial antennas in the 8-layer 8-antenna port can be selected, and the absolute difference between the number of columns selected from the first 4 layers and the number of columns selected from the last 4 layers is If the value is less than or equal to 1, you can select the 1st, 2nd, 3rd, 5th, 6th and 8th layers of the second codewords for coherent transmission of some antennas in the 8th layer of the 8-antenna port, and set the normalization coefficient of the second codeword to
Figure PCTCN2022087519-appb-000048
Then the second codeword of partial antenna coherent transmission of 8-antenna port 6-layer pre-construction can be constructed:
Figure PCTCN2022087519-appb-000049
Figure PCTCN2022087519-appb-000049
本申请实施例中，可以基于N天线端口或N/2天线端口对应的第一码字、第一天线端口组和第二天线端口组，确定N天线端口N层的部分天线相干传输的第二码字，并基于N天线端口N层的部分天线相干传输的第二码字，确定N天线端口L层的部分天线相干传输的第二码字，L小于N。可基于所有天线全相干传输码字设计部分天线相干传输码字，可以支持上行传输8天线端口1层至8层部分天线相干传输码字设计，进而对上行MIMO技术进一步增强。In the embodiment of the present application, the second codeword, the first antenna port group, and the second antenna port group corresponding to the N antenna port or N/2 antenna port can be determined based on the partial antenna coherent transmission of the N layer of the N antenna port. codeword, and based on the second codeword of partial antenna coherent transmission of N antenna port N layer, determine the second codeword of partial antenna coherent transmission of N antenna port L layer, L is less than N. Partial antenna coherent transmission codewords can be designed based on fully coherent transmission codewords for all antennas, and partial antenna coherent transmission codeword design from layer 1 to layer 8 of uplink transmission can be supported, thereby further enhancing uplink MIMO technology.
请参见图6，图6是本申请实施例提供的一种基于码本的PUSCH传输方法的流程示意图。由终端设备执行，如图6所示，该方法可以包括但不限于如下步骤：Please refer to Figure 6. Figure 6 is a schematic flowchart of a codebook-based PUSCH transmission method provided by an embodiment of the present application. Executed by the terminal device, as shown in Figure 6, the method may include but is not limited to the following steps:
S61，接收网络设备发送的预编码指示信息。S61. Receive the precoding instruction information sent by the network device.
需要说明的是，在基于码本的PUSCH的传输过程中，网络设备可以发送预编码矩阵指示(Transmit Precoding Matrix Indicator，TPMI)信息给终端设备，其中，预编码指示信息中携带预编码码本设计信息，相应地，终端设备可以接收网络设备发送的预编码指示信息。It should be noted that during the transmission process of codebook-based PUSCH, the network device can send Transmit Precoding Matrix Indicator (TPMI) information to the terminal device, where the precoding indication information carries the precoding codebook design. information, correspondingly, the terminal device can receive the precoding indication information sent by the network device.
其中，预编码矩阵指示(Transmit Precoding Matrix Indicator，TPMI)，用于指示预编码矩阵中的一个目标码字。Among them, the Transmit Precoding Matrix Indicator (TPMI) is used to indicate a target codeword in the precoding matrix.
S62，基于预编码指示信息，从MIMO上行传输对应的N天线端口L层的预编码码本中，确定上行传输对应的目标码字。S62: Based on the precoding indication information, determine the target codeword corresponding to the uplink transmission from the precoding codebook of the L layer of the N antenna port corresponding to the MIMO uplink transmission.
需要说明的是，终端设备可以基于TPMI，从MIMO上行传输对应的N天线端口L层的预编码码本中，确定上行传输对应的目标码字。需要说明的是，MIMO上行传输对应的预编码码本中，包括上述实施例中基于N天线端口或者N/2天线端口的所有天线全相干传输的第一码字，确定出N天线端口L层的部分天线相干传输的第二码字。关于根据确定N天线端口L层的部分天线相干传输的第二码字的过程，可参见上述实施例中相关内容的记载，此处不再赘述。It should be noted that the terminal device can determine the target codeword corresponding to the uplink transmission from the precoding codebook of the L layer of the N antenna port corresponding to the MIMO uplink transmission based on TPMI. It should be noted that the precoding codebook corresponding to MIMO uplink transmission includes the first codeword of fully coherent transmission of all antennas based on N antenna ports or N/2 antenna ports in the above embodiment, and the N antenna port L layer is determined The second codeword of the partial antenna coherent transmission. Regarding the process of determining the second codeword for coherent transmission by partial antennas of the L layer of the N antenna port, please refer to the relevant content in the above embodiments and will not be described again here.
终端设备可以基于TPMI，从预编码码本中确定一个目标码字。可选地，可以预先设置码字与索引index之间的映射关系，并根据索引，从预编码码本中确定上行传输的目标码字。The terminal device can determine a target codeword from the precoding codebook based on TPMI. Optionally, the mapping relationship between the codeword and the index can be set in advance, and the target codeword for uplink transmission is determined from the precoding codebook based on the index.
S63，基于目标码字对PUSCH进行预编码并发送给网络设备。S63: Precode the PUSCH based on the target codeword and send it to the network device.
在获取到目标码字后，可以基于目标码字对PUSCH进行预编码，将预编码后的PUSCH发送给网络设备。After obtaining the target codeword, the PUSCH can be precoded based on the target codeword, and the precoded PUSCH is sent to the network device.
本申请实施例中，接收网络设备发送的预编码指示信息，基于预编码指示信息，从多输入多输出MIMO上行传输对应的N天线端口L层的预编码码本中，确定上行传输对应的目标码字，基于目标码字对PUSCH进行预编码并发送给网络设备，可以基于所有天线全相干传输码字设计部分天线相干传输码字，MIMO上行支持8天线端口1层至8层传输的需求，进而对上行MIMO技术进一步增强。In the embodiment of the present application, the precoding indication information sent by the network device is received, and based on the precoding indication information, the target corresponding to the uplink transmission is determined from the precoding codebook of the L layer of the N antenna port corresponding to the multiple-input multiple-output MIMO uplink transmission. Codeword, PUSCH is precoded based on the target codeword and sent to the network device. Some antenna coherent transmission codewords can be designed based on fully coherent transmission codewords for all antennas. MIMO uplink supports the transmission requirements of layer 1 to layer 8 of 8 antenna ports. This further enhances the uplink MIMO technology.
请参见图7，图7是本申请实施例提供的一种基于码本的上行传输方法的流程示意图。由网络设备执行，如图7所示，该方法可以包括但不限于如下步骤：Please refer to Figure 7, which is a schematic flowchart of a codebook-based uplink transmission method provided by an embodiment of the present application. Executed by the network device, as shown in Figure 7, the method may include but is not limited to the following steps:
S71，确定预编码指示信息，并向终端设备发送预编码指示信息，以指示终端设备从MIMO上行传输对应的N天线端口L层的预编码码本中，确定上行传输对应的目标码字。S71. Determine the precoding indication information and send the precoding indication information to the terminal device to instruct the terminal device to determine the target codeword corresponding to the uplink transmission from the precoding codebook of the L layer of the N antenna port corresponding to the MIMO uplink transmission.
本申请实施例中，网络设备可以接收终端设备发送的探测参考信号(Sounding Reference Signals，SRS)资源，基于该SRS资源进行信道评估，基于评估出的信道状态信息，确定TPMI，并将向终端设备发送TPMI。该TPMI用于指示预编码矩阵中的一个码字，可以为该码字的index。In the embodiment of this application, the network device can receive the Sounding Reference Signals (SRS) resource sent by the terminal device, perform channel evaluation based on the SRS resource, determine the TPMI based on the evaluated channel status information, and send the TPMI to the terminal device. Send TPMI. The TPMI is used to indicate a codeword in the precoding matrix, and may be the index of the codeword.
需要说明的是，MIMO上行传输对应的预编码码本中，包括上述实施例中基于N天线端口或者N/2天线端口的所有天线全相干传输的第一码字，确定出N天线端口L层的部分天线相干传输的第二码字。关于根据确定N天线端口L层的部分天线相干传输的第二码字的过程，可参见上述实施例中相关内容的记载，此处不再赘述。It should be noted that the precoding codebook corresponding to MIMO uplink transmission includes the first codeword of fully coherent transmission of all antennas based on N antenna ports or N/2 antenna ports in the above embodiment, and the N antenna port L layer is determined The second codeword of the partial antenna coherent transmission. Regarding the process of determining the second codeword for coherent transmission by partial antennas of the L layer of the N antenna port, please refer to the relevant content in the above embodiments and will not be described again here.
S72，接收终端设备发送的PUSCH传输，其中PUSCH传输由终端设备基于目标码字进行预编码得到。S72: Receive the PUSCH transmission sent by the terminal device, where the PUSCH transmission is precoded by the terminal device based on the target codeword.
终端设备接收到TPMI后，可以获取到确定出用于上行传输的目标码字，并基于目标码字对PUSCH进行预编码，并将预编码后的PUSCH发送给网络设备。相应地，网络设备可以接收终端设备发送的 PUSCH传输。After receiving the TPMI, the terminal device can obtain the target codeword determined for uplink transmission, precode the PUSCH based on the target codeword, and send the precoded PUSCH to the network device. Accordingly, the network device can receive the PUSCH transmission sent by the terminal device.
本申请实施例中，确定预编码指示信息，并向终端设备发送预编码指示信息，以指示终端设备从MIMO上行传输对应的N天线端口L层的预编码码本中，确定上行传输对应的目标码字，接收终端设备发送的PUSCH传输，其中PUSCH传输由终端设备基于目标码字进行预编码得到。可以基于所有天线全相干传输码字设计部分天线相干传输码字，MIMO上行支持8天线端口1层至8层传输的需求，进而对上行MIMO技术进一步增强。In the embodiment of the present application, the precoding indication information is determined and sent to the terminal device to instruct the terminal device to determine the target corresponding to the uplink transmission from the precoding codebook of the L layer of the N antenna port corresponding to the MIMO uplink transmission. The codeword is to receive the PUSCH transmission sent by the terminal device, where the PUSCH transmission is obtained by precoding the terminal device based on the target codeword. Some antenna coherent transmission codewords can be designed based on the fully coherent transmission codewords of all antennas. MIMO uplink supports the transmission requirements of layer 1 to layer 8 of 8 antenna ports, thereby further enhancing the uplink MIMO technology.
上述本申请提供的实施例中，分别从网络设备、终端设备的角度对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能，网络设备和终端设备可以包括硬件结构、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。In the above embodiments provided by the present application, the methods provided by the embodiments of the present application are introduced from the perspectives of network equipment and terminal equipment respectively. In order to implement each function in the method provided by the above embodiments of the present application, network equipment and terminal equipment may include hardware structures and software modules to implement the above functions in the form of hardware structures, software modules, or hardware structures plus software modules. A certain function among the above functions can be executed by a hardware structure, a software module, or a hardware structure plus a software module.
请参见图8，为本申请实施例提供的一种通信装置80的结构示意图。图14所示的通信装置80可包括收发模块81和处理模块82。收发模块81可包括发送模块和/或接收模块，发送模块用于实现发送功能，接收模块用于实现接收功能，收发模块81可以实现发送功能和/或接收功能。该通信装置80可以用于实现上述实施例中提供的MIMO上行传输部分天线相干传输码字的确定方法Please refer to FIG. 8 , which is a schematic structural diagram of a communication device 80 provided by an embodiment of the present application. The communication device 80 shown in FIG. 14 may include a transceiver module 81 and a processing module 82. The transceiving module 81 may include a sending module and/or a receiving module. The sending module is used to implement the sending function, and the receiving module is used to implement the receiving function. The transceiving module 81 may implement the sending function and/or the receiving function. The communication device 80 can be used to implement the method for determining the MIMO uplink transmission partial antenna coherent transmission codeword provided in the above embodiments.
通信装置80可以是终端设备，也可以是终端设备中的装置，还可以是能够与终端设备匹配使用的装置。或者，通信装置80可以是网络设备，也可以是网络设备中的装置，还可以是能够与网络设备匹配使用的装置。The communication device 80 may be a terminal device, a device in the terminal device, or a device that can be used in conjunction with the terminal device. Alternatively, the communication device 80 may be a network device, a device in the network device, or a device that can be used in conjunction with the network device.
处理模块82，用于确定MIMO上行传输对应的N天线端口或者N/2天线端口的所有天线全相干传输的第一码字；The processing module 82 is used to determine the first codeword of fully coherent transmission of all antennas of N antenna ports or N/2 antenna ports corresponding to MIMO uplink transmission;
基于所述N天线端口或者N/2天线端口的所述第一码字，确定所述N天线端口L层的部分天线相干传输的第二码字；Based on the first codeword of the N antenna port or N/2 antenna port, determine the second codeword of the partial antenna coherent transmission of the L layer of the N antenna port;
其中，所述N为2的正整数次幂，所述L小于或者等于所述N。Wherein, the N is a positive integer power of 2, and the L is less than or equal to the N.
可选地，处理模块82，还用于对所有天线端口进行分组，得到组内所有天线端口全相干传输的第一天线端口组和第二天线端口组；基于所述N天线端口或者N/2天线端口的所述第一码字、所述第一天线端口组和所述第二天线端口组，确定所述部分天线相干传输的第二码字。Optionally, the processing module 82 is also used to group all antenna ports to obtain the first antenna port group and the second antenna port group for fully coherent transmission of all antenna ports in the group; based on the N antenna ports or N/2 The first codeword of the antenna port, the first antenna port group and the second antenna port group determine the second codeword of the partial antenna coherent transmission.
可选地，处理模块82，还用于：Optionally, the processing module 82 is also used to:
N个天线端口与传输层数之间的第一对应关系：确定第1层至第
Figure PCTCN2022087519-appb-000050
层在所述第一天线端口组传输，以及第
Figure PCTCN2022087519-appb-000051
至第L层在所述第二天线端口组传输；或者， The first correspondence between N antenna ports and the number of transmission layers: determine the first to
Figure PCTCN2022087519-appb-000050
layer transmits on the first antenna port group, and the
Figure PCTCN2022087519-appb-000051
to the L layer for transmission in the second antenna port group; or,
N个天线端口与传输层数之间的第二对应关系：确定第1层至第
Figure PCTCN2022087519-appb-000052
层在所述第一天线端口组传输，以及第
Figure PCTCN2022087519-appb-000053
至第L层在所述第二天线端口组传输。 The second correspondence relationship between N antenna ports and the number of transmission layers: determine the first to
Figure PCTCN2022087519-appb-000052
layer transmits on the first antenna port group, and the
Figure PCTCN2022087519-appb-000053
to the L layer for transmission in the second antenna port group.
可选地，处理模块82，还用于：Optionally, the processing module 82 is also used to:
针对所述N天线端口的所述第一码字中任一第一码字，根据所述任一第一码字、所述第一天线端口组和所述第二天线端口组，确定所述任一第一码字对应的至少一个第一矩阵；For any first codeword among the first codewords of the N antenna ports, determine the At least one first matrix corresponding to any first codeword;
对所述第一矩阵进行能量归一化，得到与所述任一第一码字对应的所述部分天线相干传输的第二码字。Energy normalization is performed on the first matrix to obtain a second codeword of coherent transmission by the partial antenna corresponding to any first codeword.
可选地，处理模块82，还用于：Optionally, the processing module 82 is also used to:
基于所述任一第一码字，分别对所述第一天线端口组和所述第二天线端口组对应的L层向量进行正交性判断，以获取所述第一天线端口组对应的I层相互正交的第一向量，以及所述第二天线端口组对应的J层相互正交的第二向量，其中，所述N个天线端口基于所述第一对应关系分组时所述I为对所述L/2向下取整得到，所述J为对所述L/2向上取整得到，或者所述N个天线端口基于所述第二对应关系分组时所述I为对所述L/2向上取整得到，所述J为对所述L/2向下取整得到，所述I和所述J之和等于L；Based on any first codeword, perform orthogonality judgment on the L-layer vectors corresponding to the first antenna port group and the second antenna port group respectively to obtain the I corresponding to the first antenna port group. A first vector of mutually orthogonal layers, and a second vector of mutually orthogonal layers of J corresponding to the second antenna port group, where the I is when the N antenna ports are grouped based on the first corresponding relationship. The J is obtained by rounding down the L/2, or when the N antenna ports are grouped based on the second correspondence relationship, the I is obtained by rounding the L/2 upward. L/2 is obtained by rounding up, the J is obtained by rounding down L/2, and the sum of I and J is equal to L;
基于所述相互正交的第一向量，确定所述第一天线端口组对应的矩阵元素的取值，以及基于所述相互正交的第二向量，确定所述第二天线端口组对应的矩阵元素的取值，以生成一个所述第一矩阵。Based on the mutually orthogonal first vector, determine the value of the matrix element corresponding to the first antenna port group, and based on the mutually orthogonal second vector, determine the matrix corresponding to the second antenna port group elements to generate a first matrix.
可选地，处理模块82，还用于：Optionally, the processing module 82 is also used to:
将所述相互正交的第一向量中与所述第一天线端口组对应的矩阵元素依次置于与所述第一天线端口组对应的第1层至第I层；Place the matrix elements corresponding to the first antenna port group in the mutually orthogonal first vectors in sequence from the 1st layer to the 1st layer corresponding to the first antenna port group;
将所述相互正交的第二向量中与所述第二天线端口组对应的矩阵元素依次置于与所述第二天线端口组对应的第I+1至第L层；Place the matrix elements corresponding to the second antenna port group in the mutually orthogonal second vectors in sequence in the I+1 to Lth layers corresponding to the second antenna port group;
将剩余的矩阵元素置零，得到所述第一矩阵。Set the remaining matrix elements to zero to obtain the first matrix.
可选地，处理模块82，还用于：Optionally, the processing module 82 is also used to:
根据所述L，从所述N/2天线端口的所述第一码字中，确定所述N/2天线端口K层的所述第一码字，所述N/2天线端口K层的所述第一码字，用于扩展得到所述N天线端口L层的部分天线相干传输的第二码字，所述K层小于或者等于所述L；According to the L, the first codeword of the K layer of the N/2 antenna port is determined from the first codeword of the N/2 antenna port. The first codeword is used to extend the second codeword to obtain the partial antenna coherent transmission of the L layer of the N antenna port, and the K layer is less than or equal to the L;
基于所述N/2天线端口K层的所述第一码字、所述第一天线端口组和所述第二天线端口组，确定所述部分天线相干传输的第二码字。Based on the first codeword of the N/2 antenna port K layer, the first antenna port group and the second antenna port group, a second codeword of the partial antenna coherent transmission is determined.
可选地，处理模块82，还用于：Optionally, the processing module 82 is also used to:
响应于所述L大于所述N/2，对L/2进行取整操作，得到所述第一天线端口组对应的K 1，以及所述第二天线端口组对应的K 2，其中，所述N个天线端口基于所述第一对应关系分组时所述K 1为对L/2向下取整得到，所述K 2为对所述L/2向上取整得到，或者所述N个天线端口基于所述第二对应关系分组时所述K 1为对所述L/2向上取整得到，所述K 2为对所述L/2向下取整得到，所述K 1和所述K 2之和等于所述L； In response to the L being greater than the N/2, L/2 is rounded to obtain K 1 corresponding to the first antenna port group and K 2 corresponding to the second antenna port group, where, When the N antenna ports are grouped based on the first correspondence relationship, K 1 is obtained by rounding down L/2, and K 2 is obtained by rounding up L/2, or the N When the antenna ports are grouped based on the second corresponding relationship, the K 1 is obtained by rounding up the L/2, the K 2 is obtained by rounding down the L/2, and the K 1 and the The sum of K 2 is equal to L;
其中，所述基于所述N/2天线端口K层的所述第一码字、所述第一天线端口组和所述第二天线端口组，确定所述部分天线相干传输的第二码字，包括：Wherein, based on the first codeword of the N/2 antenna port K layer, the first antenna port group and the second antenna port group, the second codeword of the partial antenna coherent transmission is determined ,include:
针对所述N/2天线端口K 1层对应的任一第一码字，将第1层至第K 1层的矩阵元素，依次置于所述第一天线端口组对应的第1层至第K 1层； For any first codeword corresponding to the N/2 antenna port K 1 layer, the matrix elements from the 1st layer to the K 1th layer are sequentially placed in the 1st layer to the 1st layer corresponding to the first antenna port group. K 1st floor;
针对所述N/2天线端口K 2层对应的任一第一码字，将第1层至第K 2层的元素乘以设定系数后，依次置于所述第二天线端口组对应的第K 1+1层至第L层； For any first codeword corresponding to the N/2 antenna port K 2 layer, multiply the elements from the 1st layer to the K 2 layer by the set coefficient, and then place them in sequence corresponding to the second antenna port group. K 1 +1 floor to L floor;
将剩余的矩阵元素置零，得到第二矩阵，并对所述第二矩阵进行能量归一化，得到与所述任一第一码字对应的所述部分天线相干传输的第二码字。Set the remaining matrix elements to zero to obtain a second matrix, and perform energy normalization on the second matrix to obtain a second codeword for coherent transmission by the partial antenna corresponding to any first codeword.
可选地，处理模块82，还用于：Optionally, the processing module 82 is also used to:
响应于所述L小于或者等于所述N/2且大于1，确定所述K为所述L，并对K/2进行取整操作，得到所述第一天线端口组对应的K 3，其中，所述N个天线端口基于所述第一对应关系分组时所述K 3对所 述K/2向下取整得到，或者所述N个天线端口基于所述第二对应关系分组时所述K 3对所述K/2向上取整得到； In response to the fact that L is less than or equal to the N/2 and greater than 1, determine the K to be the L, and perform a rounding operation on K/2 to obtain K 3 corresponding to the first antenna port group, where , when the N antenna ports are grouped based on the first correspondence, K 3 is obtained by rounding down K/2, or when the N antenna ports are grouped based on the second correspondence, K 3 is obtained by rounding up the K/2;
可选地，处理模块82，还用于：Optionally, the processing module 82 is also used to:
针对所述N/2天线端口K层对应的任一第一码字，将第1层至第K 3层的矩阵元素，依次置于所述第一天线端口组对应的第1层至第K 3层，以及将第K 3+1层至第K层的元素乘以设定系数后，依次置于所述第二天线端口组对应的第K 3+1层至第K层； For any first codeword corresponding to the K layer of the N/2 antenna ports, the matrix elements of the 1st to Kth layers are sequentially placed in the 1st to Kth layers corresponding to the first antenna port group. 3 layers, and after multiplying the elements from the K 3 +1 to Kth layers by the set coefficient, they are placed in the K 3 +1 to Kth layers corresponding to the second antenna port group in sequence;
将剩余的矩阵元素置零，得到第三矩阵，并对所述第三矩阵进行能量归一化，得到与所述任一第一码字对应的所述部分天线相干传输的第二码字。Set the remaining matrix elements to zero to obtain a third matrix, and perform energy normalization on the third matrix to obtain a second codeword of coherent transmission by the partial antenna corresponding to any first codeword.
可选地，处理模块82，还用于：Optionally, the processing module 82 is also used to:
响应于所述L为1，基于所述N/2天线端口1层的所述第一码字直接置于第一层，并将剩余的矩阵元素置零，得到第四矩阵，并对所述第四矩阵进行能量归一化，得到与所述任一第一码字对应的所述部分天线相干传输的第二码字。In response to the L being 1, the first codeword based on the N/2 antenna port 1 layer is directly placed in the first layer, and the remaining matrix elements are set to zero to obtain the fourth matrix, and the The fourth matrix performs energy normalization to obtain the second codeword of the coherent transmission of the partial antenna corresponding to any first codeword.
可选地，设定系数的取值集合{1,-1,j,-j}，所述设定系数为所述集合中任意一个元素。Optionally, a value set of coefficients {1,-1,j,-j} is set, and the set coefficient is any element in the set.
可选地，N/2天线端口的所述第一码字为以下情况下的一种：Optionally, the first codeword of the N/2 antenna port is one of the following situations:
现有协议中约定的MIIMO上行传输所述N/2天线端口预编码码本中所有天线全相干传输码字；或者Fully coherent transmission codewords for all antennas in the N/2 antenna port precoding codebook for MIIMO uplink transmission agreed in the existing protocol; or
现有协议中约定的MIIMO下行传输所述N/2天线端口预编码码本中所有天线全相干传输码字；或者Fully coherent transmission codewords for all antennas in the N/2 antenna port precoding codebook for MIIMO downlink transmission agreed in the existing protocol; or
预先配置的N/2天线端口预编码码本中所有天线全相干传输码字。All antennas in the preconfigured N/2 antenna port precoding codebook transmit codewords fully coherently.
可选地，第二码字对应的归一化系数为
Figure PCTCN2022087519-appb-000054
Optionally, the normalization coefficient corresponding to the second codeword is
Figure PCTCN2022087519-appb-000054
可选地，处理模块82，还用于：基于所述N天线端口或所述N/2天线端口的所述第一码字、所述第一天线端口组和所述第二天线端口组，确定N天线端口N层的部分天线相干传输的第二码字；基于所述N天线端口N层的部分天线相干传输的第二码字，确定所述N天线端口L层的部分天线相干传输的第二码字，所述L小于所述N。Optionally, the processing module 82 is also configured to: based on the first codeword, the first antenna port group and the second antenna port group of the N antenna ports or the N/2 antenna ports, Determine the second codeword of the partial antenna coherent transmission of the N layer of the N antenna port; based on the second codeword of the partial antenna coherent transmission of the N layer of the N antenna port, determine the partial antenna coherent transmission of the N layer of the N antenna port For the second codeword, the L is smaller than the N.
可选地，处理模块82，还用于：Optionally, the processing module 82 is also used to:
从所述N天线端口N层部分天线相干传输的第二码字中，选取L列向量，基于选取的所述L列向量，确定所述N天线端口L层的部分天线相干传输的第二码字。Select an L column vector from the second codeword of the partial antenna coherent transmission of the N layer of the N antenna port, and determine the second code of the partial antenna coherent transmission of the L layer of the N antenna port based on the selected L column vector. Character.
可选地，处理模块82，还用于随机选取L列；或者根据协议约定选取指定的L列；或者根据设定选取规则选取L列。Optionally, the processing module 82 is also used to randomly select the L column; or select the specified L column according to the agreement; or select the L column according to the set selection rules.
可选地，处理模块82，还用于从所述第一天线端口组对应的第1至第N/2层选取的列数，与从所述第二天线端口组对应的第N/2+1至第N层选取的列数，需要满足两个列数之差的绝对值小于或者等于1。Optionally, the processing module 82 is also configured to select the number of columns selected from the 1st to N/2th layers corresponding to the first antenna port group and the N/2+th layer corresponding to the second antenna port group. The number of columns selected from levels 1 to N must satisfy that the absolute value of the difference between the two column numbers is less than or equal to 1.
作为一种可能的实现方式，通信装置80可以是终端设备，在确定出目标码字后，基于该目标码字进行上行传输。As a possible implementation manner, the communication device 80 may be a terminal device, and after determining the target codeword, perform uplink transmission based on the target codeword.
可选地，收发模块81，用于接收网络设备发送的预编码指示信息。Optionally, the transceiving module 81 is configured to receive precoding indication information sent by the network device.
可选地，处理模块82，还用于基于预编码指示信息，从MIMO上行传输对应的N天线端口L层的预编码码本中，确定上行传输对应的目标码字。Optionally, the processing module 82 is also configured to determine the target codeword corresponding to the uplink transmission from the precoding codebook of the L layer of the N antenna port corresponding to the MIMO uplink transmission based on the precoding indication information.
作为另一种可能的实现方式，通信装置80可以是网络设备，在确定出目标码字后，基于该目标码字进行上行传输。As another possible implementation, the communication device 80 may be a network device, and after determining the target codeword, perform uplink transmission based on the target codeword.
可选地，收发模块81，用于确定预编码指示信息，并向终端设备发送预编码指示信息，以指示终端设备从MIMO上行传输对应的N天线端口L层的预编码码本中，确定上行传输对应的目标码字。Optionally, the transceiver module 81 is used to determine the precoding indication information and send the precoding indication information to the terminal device to instruct the terminal device to determine the uplink from the precoding codebook of the L layer of the N antenna port corresponding to the MIMO uplink transmission. Transmit the corresponding target codeword.
可选地，处理模块82，还用于接收终端设备发送的PUSCH传输，其中PUSCH传输由终端设备基于目标码字进行预编码得到。Optionally, the processing module 82 is also configured to receive the PUSCH transmission sent by the terminal device, where the PUSCH transmission is precoded by the terminal device based on the target codeword.
本申请实施例中，可以基于所有天线全相干传输码字设计部分天线相干传输码字，MIMO上行支持8天线端口1层至8层传输的需求，进而对上行MIMO技术进一步增强。In the embodiment of this application, some antenna coherent transmission codewords can be designed based on the fully coherent transmission codewords of all antennas. MIMO uplink supports the transmission requirements of layer 1 to layer 8 of 8 antenna ports, thereby further enhancing the uplink MIMO technology.
请参见图9，图9是本申请实施例提供的另一种通信装置90的结构示意图。通信装置90可以是终端设备，也可以是网络设备，也可以是支持终端设备实现上述方法的芯片、芯片***、或处理器等，还可以是支持网络设备实现上述方法的芯片、芯片***、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。Please refer to FIG. 9 , which is a schematic structural diagram of another communication device 90 provided by an embodiment of the present application. The communication device 90 may be a terminal device, a network device, a chip, a chip system, or a processor that supports a terminal device to implement the above method, or a chip, a chip system, or a processor that supports a network device to implement the above method. Processor etc. The device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.
通信装置90可以包括一个或多个处理器91。处理器91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通信装置(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。 Communication device 90 may include one or more processors 91. The processor 91 may be a general-purpose processor or a special-purpose processor, or the like. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data. The central processor can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.) and execute computer programs. , processing data for computer programs.
可选的，通信装置90中还可以包括一个或多个存储器92，其上可以存有计算机程序94，处理器91执行所述计算机程序94，以使得通信装置90执行上述方法实施例中描述的方法。可选的，所述存储器92中还可以存储有数据。通信装置90和存储器92可以单独设置，也可以集成在一起。Optionally, the communication device 90 may also include one or more memories 92, on which a computer program 94 may be stored. The processor 91 executes the computer program 94, so that the communication device 90 performs the steps described in the above method embodiments. method. Optionally, the memory 92 may also store data. The communication device 90 and the memory 92 can be provided separately or integrated together.
可选的，通信装置90还可以包括收发器95、天线96。收发器95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95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。Optionally, the communication device 90 may also include a transceiver 95 and an antenna 96 . The transceiver 95 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions. The transceiver 95 may include a receiver and a transmitter. The receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function; the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.
可选的，通信装置90中还可以包括一个或多个接口电路97。接口电路97用于接收代码指令并传输至处理器91。处理器91运行所述代码指令以使通信装置90执行上述方法实施例中描述的方法。Optionally, the communication device 90 may also include one or more interface circuits 97. The interface circuit 97 is used to receive code instructions and transmit them to the processor 91 . The processor 91 executes the code instructions to cause the communication device 90 to perform the method described in the above method embodiment.
在一种实现方式中，处理器91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。In one implementation, the processor 91 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together. The above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.
在一种实现方式中，处理器91可以存有计算机程序93，计算机程序93在处理器91上运行，可使得通信装置90执行上述方法实施例中描述的方法。计算机程序93可能固化在处理器91中，该种情况下，处理器91可能由硬件实现。In one implementation, the processor 91 may store a computer program 93, and the computer program 93 runs on the processor 91, causing the communication device 90 to perform the method described in the above method embodiment. The computer program 93 may be solidified in the processor 91, in which case the processor 91 may be implemented by hardware.
在一种实现方式中，通信装置90可以包括电路，所述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。本申请中描述的处理器和收发器可实现在集成电路(integrated circuit，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。In one implementation, the communication device 90 may include a circuit, and the circuit may implement the functions of sending or receiving or communicating in the foregoing method embodiments. The processor and transceiver described in this application can be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board (PCB), electronic equipment, etc. The processor and transceiver can 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 (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
以上实施例描述中的通信装置可以是发送设备或者接收设备(如前述方法实施例中的接收设备)，但本申请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。例如所述通信装置可以是：The communication device described in the above embodiments may be a sending device or a receiving device (such as the receiving device in the foregoing method embodiment), but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may not be limited to Limitations of Figure 9. The communication device may be a stand-alone device or may be part of a larger device. For example, the communication device may be:
(1)独立的集成电路IC，或芯片，或，芯片***或子***；(1) Independent integrated circuit IC, or chip, or chip system or subsystem;
(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；(2) A collection of one or more ICs. Optionally, the IC collection may also include storage components for storing data and computer programs;
(3)ASIC，例如调制解调器(Modem)；(3)ASIC, such as modem;
(4)可嵌入在其他设备内的模块；(4) Modules that can be embedded in other devices;
(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；(5) Receivers, terminal equipment, intelligent terminal equipment, cellular phones, wireless equipment, handheld devices, mobile units, vehicle-mounted equipment, network equipment, cloud equipment, artificial intelligence equipment, etc.;
(6)其他等等。(6) Others, etc.
对于通信装置可以是芯片或芯片***的情况，可参见图10所示的芯片的结构示意图。图10所示的芯片包括处理器101和接口102。其中，处理器101的数量可以是一个或多个，接口102的数量可以是多个。For the case where the communication device may be a chip or a chip system, refer to the schematic structural diagram of the chip shown in FIG. 10 . The chip shown in Figure 10 includes a processor 101 and an interface 102. The number of processors 101 may be one or more, and the number of interfaces 102 may be multiple.
可选的，芯片还包括存储器103，存储器103用于存储必要的计算机程序和数据。Optionally, the chip also includes a memory 103, which is used to store necessary computer programs and data.
该芯片用于执行时实现上述任一方法实施例的功能。The chip is used to implement the functions of any of the above method embodiments when executed.
本领域技术人员还可以了解到本申请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***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所述的功能，但这种实现不应被理解为超出本申请实施例保护的范围。Those skilled in the art can also understand that the various illustrative logical blocks and steps listed in the embodiments of this application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented in hardware or software depends on the specific application and overall system design requirements. Those skilled in the art can use various methods to implement the described functions for each specific application, but such implementation should not be understood as exceeding the protection scope of the embodiments of the present application.
本申请实施例还提供一种基于码本的上行传输的通信***，该***包括前述图8实施例中作为终端设备(如前述方法实施例中的终端设备)的通信装置和作为网络设备的通信装置，或者，该***包括前述图9实施例中作为终端设备(如前述方法实施例中的终端设备)的通信装置和作为网络设备的通信装置。Embodiments of the present application also provide a communication system based on codebook uplink transmission. The system includes a communication device as a terminal device (such as the terminal device in the foregoing method embodiment) in the embodiment of FIG. 8 and a communication device as a network device. device, or the system includes a communication device as a terminal device (such as the terminal device in the foregoing method embodiment) in the embodiment of FIG. 9 and a communication device as a network device.
本申请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。This application also provides a readable storage medium on which instructions are stored. When the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.
本申请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。This application also provides a computer program product, which, when executed by a computer, implements the functions of any of the above method embodiments.
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。所述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所述计算机程序时，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，所述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。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，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。In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program may be stored in or transferred from one computer-readable storage medium to another, for example, the computer program may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated therein. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks, SSD)) etc.
本领域普通技术人员可以理解：本申请中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围，也表示先后顺序。Persons of ordinary skill in the art can understand that the first, second, and other numerical numbers involved in this application are only for convenience of description and are not used to limit the scope of the embodiments of this application and also indicate the order.
本申请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，本申请不做限制。在本申请实施例中，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。At least one in this application can also be described as one or more, and the plurality can be two, three, four or more, which is not limited by this application. In the embodiment of this application, for a technical feature, the technical feature is distinguished by "first", "second", "third", "A", "B", "C" and "D", etc. The technical features described in "first", "second", "third", "A", "B", "C" and "D" are in no particular order or order.
本申请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，本申请并不限定。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，本申请中的表格中，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。The corresponding relationships shown in each table in this application 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 this application. When configuring the correspondence between information and each parameter, it is not necessarily required to configure all the correspondences shown in each table. For example, in the table in this application, the corresponding relationships shown in some rows may not be configured. For another example, 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 may also be other names understandable by the communication device, and the values or expressions of the parameters may also be other values or expressions understandable by the communication device. When implementing the above tables, 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. wait.
本申请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。Predefinition in this application can be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, solidification, or pre-burning.
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。Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.
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***、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。Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.
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。The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims (24)

  1. 一种多输入多输出MIMO上行传输部分天线相干传输码字的确定方法，其特征在于，所述方法包括：A method for determining coherent transmission codewords for multiple-input multiple-output MIMO uplink transmission partial antennas, characterized in that the method includes:
    确定MIMO上行传输对应的N天线端口或者N/2天线端口的所有天线全相干传输的第一码字；Determine the first codeword of fully coherent transmission for all antennas of N antenna ports or N/2 antenna ports corresponding to MIMO uplink transmission;
    基于所述N天线端口或者N/2天线端口的所述第一码字，确定所述N天线端口L层的部分天线相干传输的第二码字；Based on the first codeword of the N antenna port or N/2 antenna port, determine the second codeword of the partial antenna coherent transmission of the L layer of the N antenna port;
    其中，所述N为2的正整数次幂，所述L小于或者等于所述N。Wherein, the N is a positive integer power of 2, and the L is less than or equal to the N.
  2. 根据权利要求1所述的方法，其特征在于，基于所述N天线端口或者N/2天线端口的所述第一码字，确定所述N天线端口L层的部分天线相干传输的第二码字，包括：The method according to claim 1, characterized in that, based on the first codeword of the N antenna port or N/2 antenna port, the second code of the partial antenna coherent transmission of the L layer of the N antenna port is determined. words, including:
    对所有天线端口进行分组，得到每组内所有天线端口全相干传输的第一天线端口组和第二天线端口组；Group all antenna ports to obtain the first antenna port group and the second antenna port group for fully coherent transmission of all antenna ports in each group;
    基于所述N天线端口或者N/2天线端口的所述第一码字、所述第一天线端口组和所述第二天线端口组，确定所述部分天线相干传输的第二码字。Based on the first codeword of the N antenna ports or N/2 antenna ports, the first antenna port group and the second antenna port group, a second codeword of the partial antenna coherent transmission is determined.
  3. 根据权利要求2所述的方法，其特征在于，所述得到每组内所有天线端口全相干传输的第一天线端口组和第二天线端口组之后，还包括：The method according to claim 2, characterized in that after obtaining the first antenna port group and the second antenna port group of fully coherent transmission of all antenna ports in each group, it further includes:
    将N个天线端口与传输层数之间的第一对应关系确定为第1层至第
    Figure PCTCN2022087519-appb-100001
    层在所述第一天线端口组传输，以及第
    Figure PCTCN2022087519-appb-100002
    至第L层在所述第二天线端口组传输；或者，     The first corresponding relationship between the N antenna ports and the number of transmission layers is determined as layer 1 to layer 1
    Figure PCTCN2022087519-appb-100001
    layer transmits on the first antenna port group, and the
    Figure PCTCN2022087519-appb-100002
    Transmit to the L-th layer in the second antenna port group; or,
    将N个天线端口与传输层数之间的第二对应关系确定为第1层至第
    Figure PCTCN2022087519-appb-100003
    层在所述第一天线端口组传输，以及第
    Figure PCTCN2022087519-appb-100004
    至第L层在所述第二天线端口组传输。     The second corresponding relationship between the N antenna ports and the number of transmission layers is determined as layer 1 to layer 1
    Figure PCTCN2022087519-appb-100003
    layer transmits on the first antenna port group, and the
    Figure PCTCN2022087519-appb-100004
    to the L layer for transmission in the second antenna port group.
  4. 根据权利要求3所述的方法，其特征在于，基于所述N天线端口的所述第一码字、所述第一天线端口组和所述第二天线端口组，确定所述部分天线相干传输的第二码字，包括：The method according to claim 3, characterized in that, based on the first codeword of the N antenna ports, the first antenna port group and the second antenna port group, determining the partial antenna coherent transmission The second code word includes:
    针对所述N天线端口的所述第一码字中任一第一码字，根据所述任一第一码字、所述第一天线端口组和所述第二天线端口组，确定所述任一第一码字对应的至少一个第一矩阵；For any first codeword among the first codewords of the N antenna ports, determine the At least one first matrix corresponding to any first codeword;
    对所述第一矩阵进行能量归一化，得到与所述任一第一码字对应的所述部分天线相干传输的第二码字。Energy normalization is performed on the first matrix to obtain a second codeword of coherent transmission by the partial antenna corresponding to any first codeword.
  5. 根据权利要求4所述的方法，其特征在于，所述根据所述任一第一码字、所述第一天线端口组和所述第二天线端口组，确定所述任一第一码字对应的至少一个第一矩阵，包括：The method of claim 4, wherein the any first codeword is determined based on the any first codeword, the first antenna port group and the second antenna port group. The corresponding at least one first matrix includes:
    基于所述任一第一码字，分别对所述第一天线端口组和所述第二天线端口组对应的L层向量进行正交性判断，以获取所述第一天线端口组对应的I层相互正交的第一向量，以及所述第二天线端口组对应的J层相互正交的第二向量，其中，所述第一对应关系时所述I为对所述L/2向下取整得到，所述J为对所述L/2向上取整得到，或者所述第二对应关系时所述I为对所述L/2向上取整得到，所述J为对所 述L/2向下取整得到，所述I和所述J之和等于L；Based on any first codeword, perform orthogonality judgment on the L-layer vectors corresponding to the first antenna port group and the second antenna port group respectively to obtain the I corresponding to the first antenna port group. The first vectors of the layers are orthogonal to each other, and the second vectors of the J layer corresponding to the second antenna port group are orthogonal to each other, wherein in the first correspondence, the I is downward to the L/2 Obtained by rounding up, the J is obtained by rounding up the L/2, or in the second correspondence relationship, the I is obtained by rounding up the L/2, and the J is obtained by rounding up the L /2 is rounded down to obtain that the sum of the I and the J is equal to L;
    基于所述相互正交的第一向量，确定所述第一天线端口组对应的矩阵元素的取值，以及基于所述相互正交的第二向量，确定所述第二天线端口组对应的矩阵元素的取值，以生成一个所述第一矩阵。Based on the mutually orthogonal first vector, determine the value of the matrix element corresponding to the first antenna port group, and based on the mutually orthogonal second vector, determine the matrix corresponding to the second antenna port group elements to generate a first matrix.
  6. 根据权利要求5所述的方法，其特征在于，所述基于所述相互正交的第一向量，确定所述第一天线端口组对应的矩阵元素的取值，以及基于所述相互正交的第二向量，确定所述第二天线端口组对应的矩阵元素的取值，以生成一个所述第一矩阵，包括：The method of claim 5, wherein the values of matrix elements corresponding to the first antenna port group are determined based on the mutually orthogonal first vectors, and based on the mutually orthogonal The second vector determines the value of the matrix element corresponding to the second antenna port group to generate the first matrix, including:
    将所述相互正交的第一向量中与所述第一天线端口组对应的矩阵元素依次置于与所述第一天线端口组对应的第1层至第I层；Place the matrix elements corresponding to the first antenna port group in the mutually orthogonal first vectors in sequence from the 1st layer to the 1st layer corresponding to the first antenna port group;
    将所述相互正交的第二向量中与所述第二天线端口组对应的矩阵元素依次置于与所述第二天线端口组对应的第I+1至第L层；Place the matrix elements corresponding to the second antenna port group in the mutually orthogonal second vectors in sequence in the I+1 to Lth layers corresponding to the second antenna port group;
    将剩余的矩阵元素置零，得到所述第一矩阵。Set the remaining matrix elements to zero to obtain the first matrix.
  7. 根据权利要求3所述的方法，其特征在于，所述基于N/2天线端口的所述第一码字、所述第一天线端口组和所述第二天线端口组，确定所述部分天线相干传输的第二码字，包括：The method of claim 3, wherein the partial antenna is determined based on the first codeword of N/2 antenna ports, the first antenna port group and the second antenna port group. The second codeword of coherent transmission includes:
    根据所述L，从所述N/2天线端口的所述第一码字中，确定所述N/2天线端口K层的所述第一码字，所述N/2天线端口K层的所述第一码字，用于扩展得到所述N天线端口L层的部分天线相干传输的第二码字，所述K层小于或者等于所述L；According to the L, the first codeword of the K layer of the N/2 antenna port is determined from the first codeword of the N/2 antenna port. The first codeword is used to extend the second codeword to obtain the partial antenna coherent transmission of the L layer of the N antenna port, and the K layer is less than or equal to the L;
    基于所述N/2天线端口K层的所述第一码字、所述第一天线端口组和所述第二天线端口组，确定所述部分天线相干传输的第二码字。Based on the first codeword of the N/2 antenna port K layer, the first antenna port group and the second antenna port group, a second codeword of the partial antenna coherent transmission is determined.
  8. 根据权利要求7所述的方法，其特征在于，所述K的确定过程，包括：The method according to claim 7, characterized in that the determination process of K includes:
    响应于所述L大于所述N/2，对L/2进行取整操作，得到所述第一天线端口组对应的K 1，以及所述第二天线端口组对应的K 2，其中，所述第一对应关系时所述K 1为对L/2向下取整得到，所述K 2为对所述L/2向上取整得到，或者所述第二对应关系时所述K 1为对所述L/2向上取整得到，所述K 2为对所述L/2向下取整得到，所述K 1和所述K 2之和等于所述L； In response to the L being greater than the N/2, L/2 is rounded to obtain K 1 corresponding to the first antenna port group and K 2 corresponding to the second antenna port group, where, In the first correspondence relationship, K 1 is obtained by rounding down L/2, and K 2 is obtained by rounding up L/2, or in the second correspondence relationship, K 1 is The K 2 is obtained by rounding the L/2 upwards, the K 2 is obtained by rounding the L/2 downwards, and the sum of the K 1 and the K 2 is equal to the L;
    其中，所述基于所述N/2天线端口K层的所述第一码字、所述第一天线端口组和所述第二天线端口组，确定所述部分天线相干传输的第二码字，包括：Wherein, based on the first codeword of the N/2 antenna port K layer, the first antenna port group and the second antenna port group, the second codeword of the partial antenna coherent transmission is determined ,include:
    针对所述N/2天线端口K 1层对应的任一第一码字，将第1层至第K 1层的矩阵元素，依次置于所述第一天线端口组对应的第1层至第K 1层； For any first codeword corresponding to the N/2 antenna port K 1 layer, the matrix elements from the 1st layer to the K 1th layer are sequentially placed in the 1st layer to the 1st layer corresponding to the first antenna port group. K 1st floor;
    针对所述N/2天线端口K 2层对应的任一第一码字，将第1层至第K 2层的元素乘以设定系数后，依次置于所述第二天线端口组对应的第K 1+1层至第L层； For any first codeword corresponding to the N/2 antenna port K 2 layer, multiply the elements from the 1st layer to the K 2 layer by the set coefficient, and then place them in sequence corresponding to the second antenna port group. K 1 +1 floor to L floor;
    将剩余的矩阵元素置零，得到第二矩阵，并对所述第二矩阵进行能量归一化，得到与所述任一第一码字对应的所述部分天线相干传输的第二码字。Set the remaining matrix elements to zero to obtain a second matrix, and perform energy normalization on the second matrix to obtain a second codeword for coherent transmission by the partial antenna corresponding to any first codeword.
  9. 根据权利要求7所述的方法，其特征在于，所述K的确定过程，包括：The method according to claim 7, characterized in that the determination process of K includes:
    响应于所述L小于或者等于所述N/2且大于1，确定所述K为所述L，并对K/2进行取整操作，得到所述第一天线端口组对应的K 3，其中，所述第一对应关系时所述K 3对所述K/2向下取整得到，或者所述第二对应关系时所述K 3对所述K/2向上取整得到； In response to the fact that L is less than or equal to the N/2 and greater than 1, determine the K to be the L, and perform a rounding operation on K/2 to obtain K 3 corresponding to the first antenna port group, where , the first correspondence relationship is obtained by rounding down the K/2 by the K 3 , or the second correspondence relationship is obtained by rounding the K/2 upwards by the K 3 ;
    其中，所述基于所述N/2天线端口K层的所述第一码字、所述第一天线端口组和所述第二天线端口组，确定所述部分天线相干传输的第二码字，包括：Wherein, based on the first codeword of the N/2 antenna port K layer, the first antenna port group and the second antenna port group, the second codeword of the partial antenna coherent transmission is determined ,include:
    针对所述N/2天线端口K层对应的任一第一码字，将第1层至第K 3层的矩阵元素，依次置于所述第一天线端口组对应的第1层至第K 3层，以及将第K 3+1层至第K层的元素乘以设定系数后，依次置于所述第二天线端口组对应的第K 3+1层至第K层； For any first codeword corresponding to the K layer of the N/2 antenna ports, the matrix elements of the 1st to Kth layers are sequentially placed in the 1st to Kth layers corresponding to the first antenna port group. 3 layers, and after multiplying the elements from the K 3 +1 to Kth layers by the set coefficient, they are placed in the K 3 +1 to Kth layers corresponding to the second antenna port group in sequence;
    将剩余的矩阵元素置零，得到第三矩阵，并对所述第三矩阵进行能量归一化，得到与所述任一第一码字对应的所述部分天线相干传输的第二码字。Set the remaining matrix elements to zero to obtain a third matrix, and perform energy normalization on the third matrix to obtain a second codeword of coherent transmission by the partial antenna corresponding to any first codeword.
  10. 根据权利要求7所述的方法，其特征在于，所述基于所述N/2天线端口K层的所述第一码字、所述第一天线端口组和所述第二天线端口组，确定所述部分天线相干传输的第二码字，包括：The method according to claim 7, characterized in that, based on the first codeword of the N/2 antenna port K layer, the first antenna port group and the second antenna port group, determining The second codeword of the partial antenna coherent transmission includes:
    响应于所述L为1，基于所述N/2天线端口1层的所述第一码字直接置于第一层，并将剩余的矩阵元素置零，得到第四矩阵，并对所述第四矩阵进行能量归一化，得到与所述任一第一码字对应的所述部分天线相干传输的第二码字。In response to the L being 1, the first codeword based on the N/2 antenna port 1 layer is directly placed in the first layer, and the remaining matrix elements are set to zero to obtain the fourth matrix, and the The fourth matrix performs energy normalization to obtain the second codeword of the coherent transmission of the partial antenna corresponding to any first codeword.
  11. 根据权利要求8或9所述的方法，其特征在于，所述设定系数的取值集合{1,-1,j,-j}，所述设定系数为所述集合中任意一个元素。The method according to claim 8 or 9, characterized in that the setting coefficient is a value set {1,-1,j,-j}, and the setting coefficient is any element in the set.
  12. 根据权利要求7-10中任一项所述的方法，其特征在于，所述N/2天线端口的所述第一码字为以下一种：The method according to any one of claims 7-10, characterized in that the first codeword of the N/2 antenna port is one of the following:
    现有协议中约定的MIIMO上行传输所述N/2天线端口预编码码本中所有天线全相干传输码字；或者Fully coherent transmission codewords for all antennas in the N/2 antenna port precoding codebook for MIIMO uplink transmission agreed in the existing protocol; or
    现有协议中约定的MIIMO下行传输所述N/2天线端口预编码码本中所有天线全相干传输码字；或者Fully coherent transmission codewords for all antennas in the N/2 antenna port precoding codebook for MIIMO downlink transmission agreed in the existing protocol; or
    预先配置的N/2天线端口预编码码本中所有天线全相干传输码字。All antennas in the preconfigured N/2 antenna port precoding codebook transmit codewords fully coherently.
  13. 根据权利要求3或9或11所述的方法，其特征在于，所述第二码字对应的归一化系数为
    Figure PCTCN2022087519-appb-100005
    The method according to claim 3 or 9 or 11, characterized in that the normalization coefficient corresponding to the second codeword is
    Figure PCTCN2022087519-appb-100005
  14. 根据权利要求3所述的方法，其特征在于，所述基于所述N天线端口或者N/2天线端口的所述第一码字、所述第一天线端口组和所述第二天线端口组，确定所述部分天线相干传输的第二码字，包括：The method according to claim 3, characterized in that the first codeword, the first antenna port group and the second antenna port group based on the N antenna ports or N/2 antenna ports , determining the second codeword of coherent transmission by the partial antenna, including:
    基于所述N天线端口或所述N/2天线端口的所述第一码字、所述第一天线端口组和所述第二天线端口组，确定N天线端口N层的部分天线相干传输的第二码字；Based on the first codeword of the N antenna port or the N/2 antenna port, the first antenna port group and the second antenna port group, determine the partial antenna coherent transmission of the N layer of the N antenna port. second code word;
    基于所述N天线端口N层的部分天线相干传输的第二码字，确定所述N天线端口L层的部分天线 相干传输的第二码字，所述L小于所述N。Based on the second codeword of the partial antenna coherent transmission of the N layer of the N antenna port, the second codeword of the partial antenna coherent transmission of the L layer of the N antenna port is determined, and the L is smaller than the N.
  15. 根据权利要求14所述的方法，其特征在于，基于所述N天线端口N层的部分天线相干传输的第二码字，确定所述N天线端口L层的部分天线相干传输的第二码字，包括：The method according to claim 14, characterized in that, based on the second codeword of the partial antenna coherent transmission of the N layer of the N antenna port, the second codeword of the partial antenna coherent transmission of the L layer of the N antenna port is determined. ,include:
    从所述N天线端口N层部分天线相干传输的第二码字中，选取L列向量，基于选取的所述L列向量，确定所述N天线端口L层的部分天线相干传输的第二码字。Select an L column vector from the second codeword of the partial antenna coherent transmission of the N layer of the N antenna port, and determine the second code of the partial antenna coherent transmission of the L layer of the N antenna port based on the selected L column vector. Character.
  16. 根据权利要求15所述的方法，其特征在于，选取L列向量的方式包括以下一种：The method according to claim 15, characterized in that the method of selecting L column vectors includes one of the following:
    随机选取L列；或者Randomly select column L; or
    根据协议约定选取指定的L列；或者Select the specified column L according to the agreement; or
    根据设定选取规则选取L列。Select column L according to the set selection rules.
  17. 根据权利要求15所述的方法，其特征在于，所述从所述N天线端口N层部分天线相干传输的第二码字中，选取L列向量，包括：The method according to claim 15, characterized in that selecting L column vectors from the second codewords coherently transmitted by the N-layer partial antennas of the N-antenna ports includes:
    从所述第一天线端口组对应的第1至第N/2层选取的列数，与从所述第二天线端口组对应的第N/2+1至第N层选取的列数，需要满足两个列数之差的绝对值小于或者等于1。The number of columns selected from the 1st to N/2th layers corresponding to the first antenna port group and the number of columns selected from the N/2+1 to Nth layers corresponding to the second antenna port group need to The absolute value of the difference between the two column numbers is less than or equal to 1.
  18. 一种通信装置，其特征在于，包括：A communication device, characterized by including:
    处理模块，用于确定MIMO上行传输对应的N天线端口或者N/2天线端口对应的所有天线全相干传输的第一码字；A processing module used to determine the first codeword of fully coherent transmission of all antennas corresponding to N antenna ports corresponding to MIMO uplink transmission or N/2 antenna ports;
    基于所述N天线端口或者N/2天线端口的所述第一码字，确定所述N天线端口L层的部分天线相干传输的第二码字；Based on the first codeword of the N antenna port or N/2 antenna port, determine the second codeword of the partial antenna coherent transmission of the L layer of the N antenna port;
    其中，所述N为2的正整数次幂，所述L小于或者等于所述N。Wherein, the N is a positive integer power of 2, and the L is less than or equal to the N.
  19. 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17中任一项所述的方法。A communication device, characterized in that the device includes a processor and a memory, a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the device executes the claims The method described in any one of 1 to 17.
  20. 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17中任一项所述的方法。A communication device, characterized in that the device includes a processor and a memory, a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the device executes the claims The method described in any one of 1 to 17.
  21. 一种通信装置，其特征在于，包括：处理器和接口电路；A communication device, characterized by including: a processor and an interface circuit;
    所述接口电路，用于接收代码指令并传输至所述处理器；The interface circuit is used to receive code instructions and transmit them to the processor;
    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17中任一项所述的方法。The processor is configured to run the code instructions to perform the method according to any one of claims 1 to 17.
  22. 一种通信装置，其特征在于，包括：处理器和接口电路；A communication device, characterized by including: a processor and an interface circuit;
    所述接口电路，用于接收代码指令并传输至所述处理器；The interface circuit is used to receive code instructions and transmit them to the processor;
    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17中任一项所述的方法。The processor is configured to run the code instructions to perform the method according to any one of claims 1 to 17.
  23. 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17中任一项所述的方法被实现。A computer-readable storage medium configured to store instructions that, when executed, enable the method according to any one of claims 1 to 17 to be implemented.
  24. 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17中任一项所述的方法被实现。A computer-readable storage medium configured to store instructions that, when executed, enable the method according to any one of claims 1 to 17 to be implemented.
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