WO2024000179A1 - Procédé de détermination d'un mot de code de transmission à cohérence complète d'antenne d'une transmission mimo en liaison montante, et appareil - Google Patents

Procédé de détermination d'un mot de code de transmission à cohérence complète d'antenne d'une transmission mimo en liaison montante, et appareil Download PDF

Info

Publication number
WO2024000179A1
WO2024000179A1 PCT/CN2022/101990 CN2022101990W WO2024000179A1 WO 2024000179 A1 WO2024000179 A1 WO 2024000179A1 CN 2022101990 W CN2022101990 W CN 2022101990W WO 2024000179 A1 WO2024000179 A1 WO 2024000179A1
Authority
WO
WIPO (PCT)
Prior art keywords
codeword
layer
codewords
transmission
candidate
Prior art date
Application number
PCT/CN2022/101990
Other languages
English (en)
Chinese (zh)
Inventor
张振宇
高雪媛
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202280002110.4A priority Critical patent/CN117643135A/zh
Priority to PCT/CN2022/101990 priority patent/WO2024000179A1/fr
Publication of WO2024000179A1 publication Critical patent/WO2024000179A1/fr

Links

Images

Classifications

    • 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 antenna fully coherent transmission codewords for uplink MIMO 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.
  • Codebook design is also an important part of precoding technology.
  • the maximum number of antenna ports supported by the fully coherent transmission codeword of the existing uplink MIMO transmission antenna is 4, that is, the fully coherent transmission codeword of the existing uplink MIMO antenna only supports transmission of a maximum of 4 transmit antenna ports (Tx) and a maximum of 4 layers.
  • Tx transmit antenna port
  • 8Tx 8 transmit antenna ports
  • the embodiments of this application provide a method and device for determining antenna fully coherent transmission codewords for uplink MIMO transmission. Based on low-dimensional antenna fully coherent transmission codewords, high-dimensional 8Tx antenna fully coherent transmission codewords are constructed, which can enable uplink MIMO supports the transmission requirements of layer 1 to layer 8 of 8Tx, further enhancing the uplink MIMO technology.
  • embodiments of the present application provide a method for determining antenna fully coherent transmission codewords for uplink MIMO transmission.
  • the method includes:
  • candidate codewords for fully coherent antenna transmission of 4Tx or 2Tx for uplink MIMO transmission are determined, and based on the 4Tx or 2Tx candidate codewords, the first codeword for fully coherent antenna transmission of the 8TxL layer is determined.
  • high-dimensional 8Tx antenna fully coherent transmission codewords can be constructed based on low-dimensional antenna fully coherent transmission codewords, which can enable uplink MIMO to support 8Tx layer 1 to layer 8 transmission requirements, thereby improving uplink MIMO technology. further enhanced.
  • 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 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.
  • 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
  • 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.
  • 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 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 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.
  • embodiments of the present invention provide a computer-readable storage medium for storing instructions used by the above-mentioned terminal device. When the instructions are executed, the terminal device is caused to perform 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 first 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 at least one of the 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.
  • 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.
  • 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 antenna fully coherent transmission codewords for uplink MIMO transmission provided by an embodiment of the present application;
  • Figure 3 is a schematic flowchart of another method for determining antenna fully coherent transmission codewords for uplink MIMO transmission provided by an embodiment of the present application;
  • Figure 4 is a schematic flowchart of another method for determining antenna fully coherent transmission codewords for uplink MIMO transmission provided by an embodiment of the present application;
  • Figure 5 is a schematic flowchart of another method for determining antenna fully coherent transmission codewords for uplink MIMO transmission provided by an embodiment of the present application;
  • Figure 6 is a schematic flowchart of another method for determining antenna fully coherent transmission codewords for uplink MIMO transmission provided by an embodiment of the present application;
  • Figure 7 is a schematic flowchart of another method for determining antenna fully coherent transmission codewords for uplink MIMO transmission provided by an embodiment of the present application.
  • Figure 8 is a schematic flowchart of another method for determining antenna fully coherent transmission codewords for uplink MIMO transmission provided by an embodiment of the present application;
  • Figure 9 is a schematic flowchart of another method for determining antenna fully coherent transmission codewords for uplink MIMO transmission provided by an embodiment of the present application.
  • Figure 10 is a schematic flowchart of a codeword-based uplink transmission method provided by an embodiment of the present application.
  • Figure 11 is a schematic flowchart of another codeword-based uplink transmission method provided by an embodiment of the present application.
  • Figure 12 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 13 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 14 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”. For the purposes of brevity and ease of understanding, this article is characterizing When referring to a size relationship, the terms used are “greater than” or “less than”, “higher than” or “lower than”.
  • 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 fully coherent antenna transmission codewords applicable to the communication system are determined.
  • 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 can be an evolved base station (evolved NodeB, eNB), a transmission point (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. Or access nodes in wireless fidelity (WiFi) systems, etc.
  • the embodiments of this application do not limit the specific technologies and specific equipment forms used by 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 antenna fully coherent transmission codewords for uplink MIMO transmission provided in any embodiment of the present application can be executed alone, or in combination with possible implementation methods in other embodiments, or in combination with Any technical solutions in related technologies are executed together.
  • Figure 2 is a schematic flowchart of a method for determining antenna fully coherent transmission codewords for uplink MIMO transmission 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:
  • S201 Determine candidate codewords for antenna fully coherent transmission of 4 transmit antenna ports (Tx) or 2 transmit antenna ports (Tx) of uplink MIMO transmission.
  • uplink transmission can support an increase in antenna ports and the number of uplink transmission layers. That is, the number of antenna ports can be increased from 4Tx to a maximum of 8Tx.
  • the number of uplink transmission layers can be changed from 4 to L Layer, for example, the value of L can be from 1 to 8.
  • the number of antenna ports for uplink transmission and the number of uplink transmission layers L may be equal or unequal.
  • the candidate codewords for 4Tx can be based on a 4-dimensional orthogonal codebook, such as the Kerdock codebook, to determine the candidate codewords for fully coherent antenna transmission of 4Tx; optionally, the candidate codewords for 2Tx , can be based on a 2-dimensional orthogonal codebook such as the Kerdock codebook to determine candidate codewords for 2Tx antenna fully coherent transmission.
  • the Kerdock codebook is an orthogonal codebook used in communication system design and can be used to construct mutually unbiased basis sequences.
  • the Kerdock codebook has orthogonality, that is, any two column vectors in each Kerdock codeword are orthogonal to each other.
  • it can be the antenna fully coherent transmission codewords in the precoding codebook for uplink MIIMO transmission 4Tx and 2Tx agreed in the 3GPP communication protocol; optionally, it can be the downlink MIIMO 4Tx and 2Tx transmission agreed in the 3GPP communication protocol. codewords in the precoding codebook.
  • the uplink precoding codebook for uplink MIIMO transmission 4Tx agreed in the 3GPP communication protocol can be determined, and the 4Tx antenna fully coherent transmission codeword in the uplink precoding codebook can be determined as the codeword in the embodiment of the present application.
  • Candidate codewords for 4Tx antenna fully coherent transmission alternatively, the downlink precoding codebook for downlink MIIMO transmission 4Tx agreed in the 3GPP communication protocol can be determined, and the 4Tx codewords in the downlink precoding codebook can be determined as the implementation of this application Candidate codewords for fully coherent transmission of the 4Tx antenna in the example.
  • the uplink precoding codebook for uplink MIIMO transmission 2Tx agreed in the 3GPP communication protocol can be determined, and the antenna fully coherent transmission codeword of 2Tx in the uplink precoding codebook can be determined as the 2Tx in the embodiment of the present application.
  • Candidate codewords for antenna fully coherent transmission; alternatively, the downlink precoding codebook for downlink MIIMO transmission 2Tx agreed in the 3GPP communication protocol can be determined, and the 2Tx codeword in the downlink precoding codebook can be determined as the 2Tx codeword in the embodiment of this application.
  • Candidate codewords for fully coherent transmission of 2Tx antennas can be determined.
  • the candidate codewords for fully coherent transmission of pre-configured 4Tx and 2Tx antennas may be used.
  • L is used to represent the maximum number of uplink MIMO transmission transmission layers supported by the terminal device.
  • the value of L is a positive integer, and L is less than or equal to 8.
  • the second codeword is determined from the 4Tx or 2Tx candidate codewords, and based on the determined second codeword, the first codeword of the antenna fully coherent transmission of the 8Tx L layer is determined, which can be transmitted through the antenna fully coherent
  • the first codeword maps the data transmitted in each layer to all antenna ports.
  • the second codeword is determined from the 4Tx candidate codewords, and the third codeword corresponding to the second codeword is determined, and the second codeword can be determined.
  • the codeword and the third codeword are spliced to determine the first codeword for fully coherent transmission of the antenna at the 8Tx L layer.
  • the common phase coefficient can be determined based on the common phase coefficient capability supported by the communication device, and can include a phase angle of In addition, more phase angles can be supported, for example, more phase angles can be determined according to the angle interval of 45°.
  • splicing can be performed based on the common phase coefficient and any 4Tx codeword to obtain the first codeword of fully coherent transmission of the 8Tx L-layer antenna.
  • splicing can be performed based on the common phase coefficient and two 4Tx codewords to obtain the first codeword for fully coherent transmission of the 8Tx L-layer antenna.
  • more than two first codewords can be determined from the candidate codewords of 4Tx, and the determined two or more first codewords are spliced to generate the first codeword of the 8Tx L layer.
  • the normalization coefficient of any codeword can be determined, and the energy of any codeword can be normalized based on the normalization coefficient. Unified processing. Energy normalization processing of codewords is also applicable to the following embodiments.
  • the first codeword of the L layer of 8Tx determined based on the candidate codeword of 2Tx is designed based on the candidate codeword of the 2Tx antenna fully coherent transmission. , it is necessary to design a common-phase coefficient matrix corresponding to 2Tx in advance, where the common-phase coefficient matrix is an orthogonal matrix.
  • a matrix dot multiplication operation is performed on the third co-phase coefficient matrix and the candidate codewords of the 2Tx 2 layer, that is, the coefficients in the co-phase coefficient matrix and The block matrix at the corresponding position in the codeword is multiplied to obtain the first codeword of the 8Tx L layer.
  • candidate codewords for fully coherent antenna transmission of 4Tx or 2Tx corresponding to uplink MIMO transmission are determined.
  • the first codeword for fully coherent antenna transmission of the 8TxL layer can be determined.
  • high-dimensional 8Tx antenna fully coherent transmission codewords can be constructed based on low-dimensional antenna fully coherent transmission codewords, which can enable uplink MIMO to support 8Tx layer 1 to layer 8 transmission requirements, thereby improving uplink MIMO technology. further enhanced.
  • Figure 3 is a schematic flowchart of a method for determining antenna fully coherent transmission codewords for uplink MIMO transmission 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 S301 For a specific introduction to step S301, please refer to the relevant content records in the above embodiments, and will not be described again here.
  • identify 4Tx The candidate codeword of the layer is the second codeword, which is selected from the second codeword
  • the codewords of the layer are used to generate the third codeword.
  • the candidate codewords of the 4Tx 4th layer are directly used as the third codewords
  • the first codewords of the 8Tx 8th layer are spliced
  • the first codewords of the 8Tx L layer are selected.
  • the codewords of the L-4 layer are selected from the second codewords to generate the third codeword.
  • determine 4Tx The candidate codeword of the layer is the second codeword, determining 4Tx The candidate codeword of the layer is the third codeword.
  • the first co-phase coefficient matrix can be determined, the two second codewords are spliced in the row dimension to generate the first spliced codeword, and the two third codes are spliced in the row dimension.
  • the words are spliced to generate a second splicing codeword.
  • the first splicing codeword and the second splicing codeword are spliced in the column dimension to generate a third splicing codeword.
  • the first co-phase coefficient matrix and the third splicing codeword are generated.
  • the codewords are spliced and a matrix dot multiplication operation is performed to generate the first codeword.
  • candidate codewords for fully coherent antenna transmission of 4Tx or 2Tx corresponding to uplink MIMO transmission are determined.
  • the first codeword for fully coherent antenna transmission of the 8TxL layer can be determined.
  • high-dimensional 8Tx antenna fully coherent transmission codewords can be constructed based on low-dimensional antenna fully coherent transmission codewords, which can enable uplink MIMO to support 8Tx layer 1 to layer 8 transmission requirements, thereby improving uplink MIMO technology. further enhanced.
  • Figure 4 is a schematic flowchart of a method for determining antenna fully coherent transmission codewords for uplink MIMO transmission 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:
  • step S401 For a specific introduction to step S401, please refer to the relevant content records in the above embodiments, and will not be described again here.
  • determine any 4Tx Candidate codewords for fully coherent transmission by layer antennas is the second code word, and will of any The layer is determined as the third codeword For example, you can select the The codewords of the layer generate the third codeword.
  • 1. -1 is the common phase coefficient
  • the first common phase coefficient matrix can be determined as: or
  • the two second codewords can be spliced in the row dimension to obtain the first spliced codeword
  • the two third codewords can be spliced in the row dimension.
  • the second spliced codeword is obtained.
  • the first splicing codeword and the second splicing codeword are spliced in the column dimension to obtain the third splicing codeword.
  • a matrix dot multiplication operation is performed on the first co-phase coefficient matrix and the third splicing codeword to generate the first codeword for fully coherent transmission of the antenna at the 8Tx L layer.
  • the candidate codeword for fully coherent transmission of the 4Tx 4-layer antenna is the second codeword:
  • the W' 4,4 is the 1st, 2nd, and 3rd columns of W 4,4 , which is the third codeword corresponding to the second codeword.
  • L is an odd number of layers, based on the layer number I of the second codeword, in order from the 1st layer to the Lth layer (from front to back) or from the Lth layer to the 1st layer (from back to back)
  • the I layer in the L layer is selected to retain the second codeword in the order of forward), where the value of I is a positive integer less than or equal to 4.
  • the codewords of the first 4 layers can be selected from front to back as the second codeword W 4,4 , and the remaining 3 layers can be Determined by the third codeword, for example, the first three columns or the last three columns in W' 4,4 can be used.
  • the codewords of the last four layers can also be selected from back to front as the second codeword W 4,4 , and the remaining three layers in front are determined by the third codeword.
  • the first three codewords in W' 4,4 can be used. column or the last three columns.
  • the candidate codewords for the fully coherent transmission of the 4Tx antenna corresponding to the uplink MIMO transmission are determined.
  • the first codeword of the fully coherent transmission of the antenna of the 8Tx L layer can be determined.
  • high-dimensional 8Tx antenna fully coherent transmission codewords can be constructed based on low-dimensional antenna fully coherent transmission codewords, which can enable uplink MIMO to support 8Tx layer 1 to layer 8 transmission requirements, thereby improving uplink MIMO technology. further enhanced.
  • Figure 5 is a schematic flowchart of a method for determining antenna fully coherent transmission codewords for uplink MIMO transmission 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:
  • step S501 For a specific introduction to step S501, please refer to the relevant content records in the above embodiments, and will not be described again here.
  • S502 Determine the candidate codeword of 4Tx layer 4 as the second codeword, and determine the second codeword as the third codeword.
  • S503 Determine the common phase coefficient, and splice the second codeword and the third codeword based on the common phase coefficient to obtain the first codeword.
  • 1. -1 is the common phase coefficient
  • the first common phase coefficient matrix can be determined as: or
  • the two second codewords can be spliced in the row dimension to obtain the first spliced codeword
  • the two third codewords can be spliced in the row dimension.
  • the second spliced codeword is obtained.
  • the first splicing codeword and the second splicing codeword are spliced in the column dimension to obtain the third splicing codeword.
  • a matrix dot multiplication operation is performed on the first co-phase coefficient matrix and the third splicing codeword to generate the first codeword for fully coherent transmission of the antenna at the 8Tx L layer.
  • W 8,L can be a matrix composed of any L layer of W 8,8 , such as the first L layer, or Select the first codeword of fully coherent transmission of the antenna of the 8Tx L layer composed of any L layer from W 8,8 .
  • the fully coherent transmission codeword of the 4Tx 4-layer antenna is The third codeword is W 4,4 ; where, Then the first codeword of fully coherent transmission by the 8Tx 7-layer antenna is A matrix composed of any 7-column vectors in , for example, can be the 1st to 7th columns.
  • the code words of the L-4 layer are selected from the second code words to generate the third code words. That is to say, the codeword of the L-4 layer is selected from W 4,4 to generate the third codeword.
  • the codeword of the L-4 layer is selected from W 4,4 to generate the third codeword.
  • L is an odd number of layers, based on the layer number I of the second codeword, in order from the 1st layer to the Lth layer (from front to back) or from the Lth layer to the 1st layer (from back to back)
  • the I layer in the L layer is selected to retain the second codeword in the order of forward), where the value of I is a positive integer less than or equal to 4.
  • candidate codewords for 4Tx antenna fully coherent transmission corresponding to uplink MIMO transmission are determined.
  • the first codeword for 8TxL layer antenna fully coherent transmission can be determined.
  • high-dimensional 8Tx antenna fully coherent transmission codewords can be constructed based on low-dimensional antenna fully coherent transmission codewords, which can enable uplink MIMO to support 8Tx layer 1 to layer 8 transmission requirements, thereby improving uplink MIMO technology. further enhanced.
  • Figure 6 is a schematic flowchart of a method for determining antenna fully coherent transmission codewords for uplink MIMO transmission provided by an embodiment of the present application. As shown in Figure 6, the method may include but is not limited to the following steps:
  • step S601 For a specific introduction to step S601, please refer to the relevant content recorded in the above embodiments, and will not be described again here.
  • S603 Determine the common phase coefficient, and splice the second codeword and the third codeword based on the common phase coefficient to obtain the first codeword.
  • any 4Tx The antenna fully coherent transmission codeword of the layer is the second codeword: And select any 4Tx The fully coherent transmission codeword of the antenna is the third codeword: Among them, 1. -1, is the common phase coefficient, the first common phase coefficient matrix can be determined as: or
  • the process of splicing the second codeword and the third codeword can be found in the records of relevant content in the above embodiments, and will not be described again here. .
  • L is an odd number of layers, based on the layer number I of the second codeword, in order from the 1st layer to the Lth layer (from front to back) or from the Lth layer to the 1st layer (from back to back)
  • the I layer in the L layer is selected to retain the second codeword in the order of forward), where the value of I is a positive integer less than or equal to 4.
  • the candidate codewords for the fully coherent transmission of the 4Tx antenna corresponding to the uplink MIMO transmission are determined.
  • the first codeword of the fully coherent transmission of the antenna of the 8Tx L layer can be determined.
  • high-dimensional 8Tx antenna fully coherent transmission codewords can be constructed based on low-dimensional antenna fully coherent transmission codewords, which can enable uplink MIMO to support 8Tx layer 1 to layer 8 transmission requirements, thereby improving uplink MIMO technology. further enhanced.
  • FIG. 7 is a schematic flowchart of a method for determining an antenna fully coherent transmission codeword for uplink MIMO transmission provided by an embodiment of the present application. As shown in Figure 7, the method may include but is not limited to the following steps:
  • S701 Determine candidate codewords for antenna fully coherent transmission of 4Tx in uplink MIMO transmission.
  • step S701 For a specific introduction to step S701, please refer to the relevant content records in the above embodiments, and will not be described again here.
  • S703 Determine the common phase coefficient, and splice the second codeword and the third codeword based on the common phase coefficient to obtain the first codeword.
  • the fully coherent transmission codeword of any 4Tx L layer antenna to be the second codeword W 4,L , and the third codeword is also W 4,L ; where, 1, is the common phase coefficient, the second common phase coefficient matrix can be determined as:
  • the second co-phase coefficient matrix is determined, and the second codeword and the third codeword are spliced in the row dimension to generate the fourth spliced codeword, that is to say, The two second codewords are spliced to generate a fourth spliced codeword.
  • the second codeword is directly determined as the third codeword, that is, one of the two second codewords is the third codeword.
  • a matrix dot multiplication operation is performed on the second co-phase coefficient matrix and the fourth concatenated codeword to generate the first codeword.
  • the first codeword W 8,L of fully coherent transmission by the antenna of 8Tx L layer can be
  • the fully coherent transmission codeword of the 4Tx 3-layer antenna is the second codeword: Then the first codeword of fully coherent transmission by the 8Tx 3-layer antenna is:
  • the candidate codewords for the fully coherent transmission of the 4Tx antenna corresponding to the uplink MIMO transmission are determined.
  • the first codeword of the fully coherent transmission of the antenna of the 8Tx L layer can be determined.
  • high-dimensional 8Tx antenna fully coherent transmission codewords can be constructed based on low-dimensional antenna fully coherent transmission codewords, which can enable uplink MIMO to support 8Tx layer 1 to layer 8 transmission requirements, thereby improving uplink MIMO technology. further enhanced.
  • Figure 8 is a schematic flowchart of a method for determining antenna fully coherent transmission codewords for uplink MIMO transmission provided by an embodiment of the present application. As shown in Figure 8, the method may include but is not limited to the following steps:
  • step S801 For a specific introduction to step S801, please refer to the relevant content records in the above embodiments, and will not be described again here.
  • S802 Determine two or more codewords from the candidate codewords of 4Tx.
  • S803 determine the splicing positions of two or more codewords, splice them according to the splicing positions, and generate the first codeword of the 8Tx L layer.
  • four identical 4Tx antenna fully coherent transmission codewords can be used for splicing to obtain the first codeword of an 8Tx antenna fully coherent transmission, for example, four identical 4Tx 4-layer antenna fully coherent transmission codes word, you can splice the first codeword of an 8Tx 8-layer antenna fully coherent transmission, that is, you can place a 4Tx 4-layer antenna fully coherent transmission codeword at the four corners, and you can get an 8Tx 8-layer antenna fully coherent transmission codeword.
  • the first codeword of coherent transmission is, for example, four identical 4Tx 4-layer antenna fully coherent transmission codes word, you can splice the first codeword of an 8Tx 8-layer antenna fully coherent transmission, that is, you can place a 4Tx 4-layer antenna fully coherent transmission codeword at the four corners, and you can get an 8Tx 8-layer antenna fully coherent transmission codeword.
  • the first codeword of coherent transmission is, you can splice the first codeword of an 8Tx 8-layer antenna fully coherent transmission.
  • the first code word of an 8Tx 6-layer antenna fully coherent transmission can be spliced, that is, a 4Tx 3-layer antenna can be placed at the four corners.
  • the antenna fully coherent transmission codeword you can get the first codeword of an 8Tx 6-layer antenna fully coherent transmission.
  • multiple different low-dimensional antenna fully coherent transmission codewords can be used to construct an 8Tx codeword.
  • 2, 3, or 4 different 4Tx antenna fully coherent transmission codewords can be spliced to obtain an 8Tx antenna fully coherent transmission codeword.
  • the first codeword of coherent transmission can be used to construct an 8Tx codeword.
  • the candidate codewords for the fully coherent transmission of the 4Tx antenna corresponding to the uplink MIMO transmission are determined.
  • the first codeword of the fully coherent transmission of the antenna of the 8Tx L layer can be determined.
  • high-dimensional 8Tx antenna fully coherent transmission codewords can be constructed based on low-dimensional antenna fully coherent transmission codewords, which can enable uplink MIMO to support 8Tx layer 1 to layer 8 transmission requirements, thereby improving uplink MIMO technology. further enhanced.
  • Figure 9 is a schematic flowchart of a method for determining antenna fully coherent transmission codewords for uplink MIMO transmission provided by an embodiment of the present application. As shown in Figure 9, the method may include but is not limited to the following steps:
  • S901 Determine candidate codewords for antenna fully coherent transmission of 2Tx in uplink MIMO transmission.
  • step S901 For a detailed introduction to step S901, please refer to the relevant content records in the above embodiments, and will not be described again here.
  • S902 Determine the third co-phase coefficient matrix of the candidate codeword of 2Tx, where the third co-phase coefficient matrix is an orthogonal matrix.
  • the third co-phase coefficient matrix In order to support candidate codewords based on 2Tx antenna fully coherent transmission and construct the first codeword for 8Tx antenna fully coherent transmission, in the embodiment of this application, it is necessary to design a corresponding third co-phase coefficient matrix, where the third co-phase coefficient
  • the matrix needs to be an orthogonal matrix.
  • the third co-phase coefficient matrix can be
  • S903 determine the candidate codewords of the 2Tx 2 layer, and perform a matrix dot multiplication operation on the third common phase coefficient matrix and the candidate codewords of the 2Tx 2 layer to obtain the first codeword of the 8Tx L layer.
  • the candidate codeword for antenna fully coherent transmission in 2Tx2 layer is Perform a matrix dot multiplication operation on the third co-phase coefficient matrix and the candidate codewords of the 2Tx 2 layer to obtain the first codeword of the antenna fully coherent transmission of the 8Tx L layer, that is, the first codeword of the 8TxL layer is
  • candidate codewords for 2Tx antenna fully coherent transmission corresponding to uplink MIMO transmission are determined.
  • the first codeword for 8TxL layer antenna fully coherent transmission can be determined.
  • high-dimensional 8Tx antenna fully coherent transmission codewords can be constructed based on low-dimensional antenna fully coherent transmission codewords, which can enable uplink MIMO to support 8Tx layer 1 to layer 8 transmission requirements, thereby improving uplink MIMO technology. further enhanced.
  • each of the foregoing embodiments can be executed individually or in any combination. And each of the foregoing embodiments can be executed by a network side device (such as a base station). In one implementation, the foregoing embodiments are executed by a network side device (eg, a base station), and the network side device (eg, a base station) sends the final determined second codeword to the UE.
  • a network side device eg, a base station
  • the network side device eg, a base station
  • the foregoing embodiments may also be executed by user equipment UE. Further, the UE sends the finally determined second codeword to the network side device (for example, the base station).
  • the network side device for example, the base station.
  • the foregoing embodiments may also be executed by each of the network side equipment (such as a base station) and the user equipment UE.
  • the network side equipment such as a base station
  • the user equipment UE may also be executed by each of the network side equipment (such as a base station) and the user equipment UE.
  • the method for determining the codeword for full antenna coherent transmission provided by the above embodiment can be applied to terminal equipment and network equipment, and after determining the first codeword for full antenna coherent transmission, the precoding code can be determined based on the first codeword.
  • terminal equipment and network equipment can perform physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) transmission based on this precoding codebook.
  • PUSCH Physical Uplink Shared Channel
  • codebook-based uplink transmission (such as PUSCH transmission) is explained below:
  • Figure 10 is a schematic flowchart of an uplink transmission method provided by an embodiment of the present application. Executed by the terminal device, as shown in Figure 10, 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 matrix indication information carries the precoding code
  • TPMI Precoding Matrix Indicator
  • TPMI is used to indicate a target codeword in the precoding matrix.
  • the terminal device can determine the target codeword corresponding to the uplink transmission from the precoding codebook of the 8TxL layer corresponding to the uplink MIMO transmission based on TPMI.
  • the precoding codebook corresponding to the uplink MIMO transmission includes the first codeword that determines the fully coherent transmission of the antenna in the above embodiment.
  • the process of determining the first codeword for fully coherent transmission by the antenna of the 8TxL layer 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.
  • S1003 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 matrix indication information sent by the network device is received, and based on the precoding matrix indication information, the target codeword corresponding to the uplink transmission is determined from the precoding codebook of the 8Tx L layer corresponding to the uplink MIMO transmission.
  • the target codeword precodes the PUSCH and sends it to the network device.
  • high-dimensional 8Tx antenna fully coherent transmission codewords are constructed, which can enable uplink MIMO to support 8Tx layer 1 to layer 8 transmission requirements, thereby further enhancing uplink MIMO technology.
  • Figure 11 is a schematic flowchart of an uplink transmission method provided by an embodiment of the present application. Executed by the network device, as shown in Figure 11, 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 estimated channel condition, 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 the uplink MIMO transmission includes the first codeword of the 8Tx antenna-based fully coherent transmission in the above embodiment.
  • the process of determining the first codeword for fully coherent transmission by the antenna of the 8Tx L layer please refer to the records of relevant content in the above embodiments, and will not be described again here.
  • S1102. 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 matrix indication information is determined and the precoding matrix indication information is 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 8Tx L layer corresponding to the uplink MIMO 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.
  • the precoding matrix indication information sent by the network device is received, and based on the precoding matrix indication information, the target codeword corresponding to the uplink transmission is determined from the precoding codebook of the 8Tx L layer corresponding to the uplink MIMO transmission.
  • the target codeword precodes the PUSCH and sends it to the network device.
  • high-latitude 8Tx antenna fully coherent transmission codewords are constructed, which can enable uplink MIMO to support the transmission requirements of layer 1 to layer 8 of 8Tx, thereby further enhancing uplink MIMO technology.
  • the methods provided by the embodiments of the present application are introduced from the perspectives of network equipment and terminal equipment respectively.
  • the network device and the first terminal device may include a hardware structure and a software module to implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • 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. 12 is a schematic structural diagram of a communication device 120 provided by an embodiment of the present application.
  • the communication device 120 shown in FIG. 7 may include a transceiver module 1201 and a processing module 1202.
  • the transceiving module 1201 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 1201 may implement the sending function and/or the receiving function.
  • the communication device 120 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 120 may be a network device, a device in a network device, or a device that can be used in conjunction with the network device.
  • the processing module 1202 is used to determine candidate codewords for fully coherent antenna transmission of 4Tx or 2Tx for uplink MIMO transmission; based on the candidate codewords, determine the first codeword for fully coherent antenna transmission of the 8Tx L layer for uplink MIMO transmission,
  • the L is a positive integer and is less than or equal to 8.
  • the processing module 1202 is also configured to determine a second codeword from the candidate codewords in the case of 4Tx, and determine a third codeword corresponding to the second codeword; determine the common phase coefficient, and based on the common-phase coefficient, the second codeword and the third codeword are spliced to obtain the first codeword.
  • the processing module 1202 is also configured to determine the first co-phase coefficient matrix when 4 ⁇ L ⁇ 8; splice the two second codewords in the row dimension to generate a first spliced codeword; The two third codewords are spliced in the row dimension to generate a second spliced codeword; the first spliced codeword and the second spliced codeword are spliced in the column dimension to generate a third spliced codeword.
  • the processing module 1202 is also configured to determine a second co-phase coefficient matrix when 1 ⁇ L ⁇ 4; splice the two second codewords in the row dimension to generate a fourth spliced codeword, Wherein, one of the two second codewords is the third codeword; a matrix dot multiplication operation is performed on the second co-phase coefficient matrix and the fourth splicing codeword to generate the first codeword, wherein the coefficients in the second co-phase coefficient matrix are multiplied by the block matrix at the corresponding position in the fourth concatenated codeword.
  • the processing module 1202 is also used to determine 4Tx
  • the candidate codeword of the layer is the second codeword; select from the second codeword layer codewords to generate the third codeword.
  • the processing module 1202 is also configured to determine that the candidate codeword of the 4Tx 4 layer is the second codeword; and determine that the second codeword is the third codeword.
  • the processing module 1202 is also used to splice the second codeword and the third codeword to obtain the first codeword of 8Tx 8 layers; from the first codeword of the 8Tx 8 layers The codewords of the L layer are selected from the codewords to generate the first codeword of the 8Tx L layer.
  • the processing module 1202 is also configured to determine that the candidate codeword of the 4Tx 4 layer is the second codeword; when the number of transmission layers 4 ⁇ L ⁇ 8, according to the L layer, from the third codeword Select the codeword of the L-4 layer from the two codewords to generate the third codeword.
  • the processing module 1202 is also used to determine 4Tx The candidate codeword of the layer is the second codeword; determine 4Tx The candidate codeword of the layer is the third codeword.
  • the processing module 1202 is also configured to determine that the candidate codeword of the 4Tx L layer is the second codeword when the number of transmission layers 1 ⁇ L ⁇ 4; determine that the second codeword is the Describe the third code word.
  • the processing module 1202 is also configured to determine two or more codewords from the 4Tx candidate codewords; determine the splicing positions of the two or more codewords, as described Splicing is performed at the splicing position to generate the first codeword of the 8Tx L layer.
  • the processing module 1202 is also configured to determine the common phase coefficient based on the phase angle supported by the communication device.
  • the processing module 1202 is also used to determine the third co-phase coefficient matrix of the candidate codeword of 2Tx, where the third co-phase coefficient matrix is an orthogonal matrix; determine all the 2Tx 2 layers.
  • the candidate codeword is obtained, and a matrix dot multiplication operation is performed on the third co-phase coefficient matrix and the candidate codeword of the 2Tx 2 layer to obtain the first codeword of the 8Tx L layer, wherein the The coefficients in the three-phase coefficient matrix are multiplied by the block matrix at the corresponding position in the candidate codeword of the 2Tx 2 layer.
  • the processing module 1202 is also configured to, when the L is an odd number of layers, based on the layer number I of the second codeword, from the 1st layer to the Lth layer or from the Lth layer to the 1st layer
  • the I layer in the L layer is selected in order to retain the second codeword, and the value of I is a positive integer less than or equal to 4; the codeword of the remaining layer is determined to be the third codeword.
  • the processing module 1202 is also configured to determine the normalization coefficient of any codeword, and perform energy normalization processing on the any codeword based on the normalization coefficient.
  • candidate codewords for fully coherent antenna transmission of 4Tx or 2Tx corresponding to uplink MIMO transmission are determined.
  • the first codeword for fully coherent antenna transmission of the 8TxL layer can be determined.
  • high-dimensional 8Tx antenna fully coherent transmission codewords can be constructed based on low-dimensional antenna fully coherent transmission codewords, which can enable uplink MIMO to support 8Tx layer 1 to layer 8 transmission requirements, thereby improving uplink MIMO technology. further enhanced.
  • FIG 13 is a schematic structural diagram of another communication device 130 provided by an embodiment of the present application.
  • the communication device 130 may be a network device, a terminal device, a chip, a chip system, or a processor that supports a network device to implement the above method, or a chip, a chip system, or a processor that supports a terminal 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 130 may include one or more processors 1301.
  • the processor 1301 may be a general-purpose processor or a special-purpose processor, or the like.
  • 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 130 may also include one or more memories 1302, on which a computer program 1303 may be stored.
  • the processor 1301 executes the computer program 1303, so that the communication device 130 performs the steps described in the above method embodiments. method.
  • the memory 1302 may also store data.
  • the communication device 130 and the memory 1302 can be provided separately or integrated together.
  • the communication device 130 may also include a transceiver 1304 and an antenna 1305.
  • the transceiver 1304 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions.
  • the transceiver 1304 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 130 may also include one or more interface circuits 1306.
  • the interface circuit 1306 is used to receive code instructions and transmit them to the processor 1301 .
  • the processor 1301 executes the code instructions to cause the communication device 130 to perform the method described in the above method embodiment.
  • the communication device 130 is a terminal device used to implement the functions of the terminal device in the aforementioned embodiments.
  • the communication device 130 is a network device used to implement the functions of the network device in the aforementioned embodiments.
  • the processor 1301 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 1301 may store a computer program 1303, and the computer program 1303 runs on the processor 1301, causing the communication device 130 to perform the method described in the above method embodiment.
  • the computer program 1303 may be solidified in the processor 1301, in which case the processor 1301 may be implemented by hardware.
  • the communication device 130 may include a circuit, which 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 (nMetal-ox ide-semiconductor, NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • N-type metal oxide semiconductor nMetal-ox ide-semiconductor
  • PMOS bipolar junction transistor
  • BJT bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a network device or network device, 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 by FIG. 13 .
  • 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. 14 refer to the schematic structural diagram of the chip shown in FIG. 14 .
  • the chip shown in Figure 14 includes a processor 1401 and an interface 1402.
  • the number of processors 1401 may be one or more, and the number of interfaces 1402 may be multiple.
  • Processor 1401 configured to determine candidate codewords for antenna fully coherent transmission of 4Tx or 2Tx for uplink MIMO transmission; based on the candidate codewords, determine the first codeword for antenna fully coherent transmission of 8Tx L layer for uplink MIMO transmission,
  • the L is a positive integer and is less than or equal to 8.
  • the processor 1401 is also configured to determine a second codeword from the candidate codewords in the case of 4Tx, and determine a third codeword corresponding to the second codeword; determine the common phase coefficient, and based on the common-phase coefficient, the second codeword and the third codeword are spliced to obtain the first codeword.
  • the processor 1401 is also configured to determine the first co-phase coefficient matrix when 4 ⁇ L ⁇ 8; splice the two second codewords in the row dimension to generate a first spliced codeword; The two third codewords are spliced in the row dimension to generate a second spliced codeword; the first spliced codeword and the second spliced codeword are spliced in the column dimension to generate a third spliced codeword.
  • the processor 1401 is also configured to determine a second co-phase coefficient matrix when 1 ⁇ L ⁇ 4; splice the two second codewords in the row dimension to generate a fourth spliced codeword, Wherein, one of the two second codewords is the third codeword; a matrix dot multiplication operation is performed on the second co-phase coefficient matrix and the fourth splicing codeword to generate the first codeword, wherein the coefficients in the second co-phase coefficient matrix are multiplied by the block matrix at the corresponding position in the fourth concatenated codeword.
  • the processor 1401 is also used to determine the 4Tx
  • the candidate codeword of the layer is the second codeword; select from the second codeword layer codewords to generate the third codeword.
  • the processor 1401 is also configured to determine that the candidate codeword of the 4Tx 4 layer is the second codeword; and determine that the second codeword is the third codeword.
  • the processor 1401 is also configured to splice the second codeword and the third codeword to obtain the first codeword of 8Tx 8 layers; from the first codeword of the 8Tx 8 layers The codewords of the L layer are selected from the codewords to generate the first codeword of the 8Tx L layer.
  • the processor 1401 is also configured to determine that the candidate codeword of the 4Tx 4 layer is the second codeword; when the number of transmission layers 4 ⁇ L ⁇ 8, according to the L layer, from the third codeword Select the codeword of the L-4 layer from the two codewords to generate the third codeword.
  • the processor 1401 is also used to determine the 4Tx The candidate codeword of the layer is the second codeword; determine 4Tx The candidate codeword of the layer is the third codeword.
  • the processor 1401 is further configured to determine that the candidate codeword of the 4TxL layer is the second codeword when the number of transmission layers 1 ⁇ L ⁇ 4; determine that the second codeword is the The third code word.
  • the processor 1401 is also configured to determine two or more codewords from the 4Tx candidate codewords; determine the splicing positions of the two or more codewords, as described Splicing is performed at the splicing position to generate the first codeword of the 8Tx L layer.
  • the processor 1401 is also configured to determine the common phase coefficient based on the phase angle supported by the communication device.
  • the processor 1401 is also used to determine the third co-phase coefficient matrix of the candidate codeword of 2Tx, where the third co-phase coefficient matrix is an orthogonal matrix; determine all the 2Tx 2 layers.
  • the candidate codeword is obtained, and a matrix dot multiplication operation is performed on the third co-phase coefficient matrix and the candidate codeword of the 2Tx 2 layer to obtain the first codeword of the 8Tx L layer, wherein the The coefficients in the three-phase coefficient matrix are multiplied by the block matrix at the corresponding position in the candidate codeword of the 2Tx 2 layer.
  • the processor 1401 is also configured to, when the L is an odd number of layers, based on the layer number I of the second codeword, from the 1st layer to the Lth layer or from the Lth layer to the 1st layer.
  • the I layer in the L layer is selected in order to retain the second codeword, and the value of I is a positive integer less than or equal to 4; the codeword of the remaining layer is determined to be the third codeword.
  • the processor 1401 is also configured to determine the normalization coefficient of any codeword, and perform energy normalization processing on the any codeword based on the normalization coefficient.
  • candidate codewords for fully coherent antenna transmission of 4Tx or 2Tx corresponding to uplink MIMO transmission are determined.
  • the first codeword for fully coherent antenna transmission of the 8TxL layer can be determined.
  • high-dimensional 8Tx antenna fully coherent transmission codewords can be constructed based on low-dimensional antenna fully coherent transmission codewords, which can enable uplink MIMO to support 8Tx layer 1 to layer 8 transmission requirements, thereby improving uplink MIMO technology. further enhanced.
  • the chip 140 also includes a memory 1403 for storing necessary computer programs and data.
  • Embodiments of the present application also provide a communication system, which includes a communication device as a terminal device in the embodiment of FIG. 8 and a communication device as a network device, or the system includes a communication device as a terminal device in the embodiment of FIG. 9 devices and communication devices as network equipment.
  • 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.
  • the usable 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)

Abstract

Des modes de réalisation de la présente demande concernent un procédé de détermination d'un mot de code de transmission à cohérence complète d'antenne d'une transmission MIMO en liaison montante, et un appareil, qui peuvent être appliqués à un système de communication. Le procédé consiste à : déterminer des mots de code candidats de transmission à cohérence complète d'antenne de 4Tx ou 2Tx pour une transmission MIMO de liaison montante ; et sur la base des mots de code candidats, déterminer un premier mot de code de transmission à cohérence complète d'antenne de L couches de 8Tx pour une transmission MIMO de liaison montante, L étant un nombre entier positif, et étant inférieur ou égal à 8. Selon les modes de réalisation de la présente demande, un mot de code de transmission à cohérence complète d'antenne d'une dimension élevée 8Tx peut être construit sur la base d'un mot de code de transmission à cohérence complète d'antenne de faible dimension, de sorte que le MIMO de liaison montante prend en charge l'exigence de 1 à 8 couches de transmission de 8Tx, et la technologie MIMO de liaison montante est en outre améliorée.
PCT/CN2022/101990 2022-06-28 2022-06-28 Procédé de détermination d'un mot de code de transmission à cohérence complète d'antenne d'une transmission mimo en liaison montante, et appareil WO2024000179A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202280002110.4A CN117643135A (zh) 2022-06-28 2022-06-28 一种上行mimo传输的天线全相干传输码字的确定方法及其装置
PCT/CN2022/101990 WO2024000179A1 (fr) 2022-06-28 2022-06-28 Procédé de détermination d'un mot de code de transmission à cohérence complète d'antenne d'une transmission mimo en liaison montante, et appareil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/101990 WO2024000179A1 (fr) 2022-06-28 2022-06-28 Procédé de détermination d'un mot de code de transmission à cohérence complète d'antenne d'une transmission mimo en liaison montante, et appareil

Publications (1)

Publication Number Publication Date
WO2024000179A1 true WO2024000179A1 (fr) 2024-01-04

Family

ID=89383715

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/101990 WO2024000179A1 (fr) 2022-06-28 2022-06-28 Procédé de détermination d'un mot de code de transmission à cohérence complète d'antenne d'une transmission mimo en liaison montante, et appareil

Country Status (2)

Country Link
CN (1) CN117643135A (fr)
WO (1) WO2024000179A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111436107A (zh) * 2019-01-11 2020-07-21 电信科学技术研究院有限公司 上行信号的发送方法、信道质量确定方法和相关设备
CN111867078A (zh) * 2019-04-30 2020-10-30 大唐移动通信设备有限公司 上行信号传输方法、调度信息确定方法和相关设备
WO2021229758A1 (fr) * 2020-05-14 2021-11-18 株式会社Ｎｔｔドコモ Terminal, procédé de communication radio et station de base
US20210399773A1 (en) * 2018-09-28 2021-12-23 Datang Mobile Communications Equipment Co., Ltd. Uplink transmission method, uplink transmission scheduling method, and device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210399773A1 (en) * 2018-09-28 2021-12-23 Datang Mobile Communications Equipment Co., Ltd. Uplink transmission method, uplink transmission scheduling method, and device
CN111436107A (zh) * 2019-01-11 2020-07-21 电信科学技术研究院有限公司 上行信号的发送方法、信道质量确定方法和相关设备
CN111867078A (zh) * 2019-04-30 2020-10-30 大唐移动通信设备有限公司 上行信号传输方法、调度信息确定方法和相关设备
WO2021229758A1 (fr) * 2020-05-14 2021-11-18 株式会社Ｎｔｔドコモ Terminal, procédé de communication radio et station de base

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SAMSUNG: "WID proposal for Rel-18 Advanced MIMO for NR", 3GPP TSG RAN MEETING #94E ELECTRONIC MEETING, RP-213015, 29 November 2021 (2021-11-29), XP052097123 *

Also Published As

Publication number Publication date
CN117643135A (zh) 2024-03-01

Similar Documents

Publication Publication Date Title
CN112803975B (zh) 确定预编码矩阵的方法、设备及系统
WO2024000179A1 (fr) Procédé de détermination d'un mot de code de transmission à cohérence complète d'antenne d'une transmission mimo en liaison montante, et appareil
WO2024021129A1 (fr) Procédé de détermination de mot de code pour panneau multi-antenne à ports d'antenne 8 de transmission mimo de liaison montante, et appareil associé
WO2024000204A1 (fr) Procédé de détermination de mot de code de transmission mimo en liaison montante et appareil associé
WO2024026796A1 (fr) Procédé et appareil pour déterminer une matrice de précodage pour une transmission mimo en liaison montante
WO2024060142A1 (fr) Procédé de détermination de livre de codes pour un panneau à antennes multiples ayant huit ports d'antenne pour une transmission mimo en liaison montante, et appareil associé
WO2024065333A1 (fr) Procédé de détermination d'un livre de codes de transmission entièrement cohérent de huit ports d'antenne pour une transmission mimo de liaison montante, et appareil associé
WO2024098296A1 (fr) Procédé de détermination d'un livre de codes de transmission entièrement cohérent de huit ports d'antenne pour une transmission mimo en liaison montante, et appareil
WO2024026798A1 (fr) Procédé de détermination de matrice de précodage pour transmission mimo de liaison montante, et appareil associé
WO2023240654A1 (fr) Procédé de détermination de mot de code pour une transmission d'antenne partiellement cohérente, et appareil associé
WO2024026797A1 (fr) Procédés et appareil de détermination de matrice de précodage pour transmission mimo en liaison montante
WO2023201501A1 (fr) Procédés de détermination d'un mot de code de transmission cohérente d'antenne partielle d'une transmission en liaison montante mimo et appareil associé
WO2024031719A1 (fr) Procédé et appareil d'indication de précodage prenant en charge une transmission de canal pusch basée sur un registre de codes 8tx
WO2023184450A1 (fr) Procédé de réception/d'envoi d'informations sur la base d'un pusch sans livre de codes, et appareils associés
WO2024045143A1 (fr) Procédé de détermination de matrice de précodage de moment angulaire orbital (oam) et appareil associé
WO2023184451A1 (fr) Procédé et appareil basés sur un non-livre de codes pour envoyer et recevoir des informations dans un pusch
WO2023184434A1 (fr) Procédé et appareil d'envoi de canal montant sur la base d'un livre de codes
WO2023201503A1 (fr) Procédé de détermination de livre de codes de précodage pour une transmission de liaison montante mimo et dispositif associé
WO2023201500A1 (fr) Procédé de transmission pusch basé sur un livre de codes et appareil associé
WO2024026647A1 (fr) Procédé d'indication de coefficient et appareil associé
WO2023050154A1 (fr) Procédé et appareil de configuration de transmission pour de multiples points de transmission et de réception (trps)
WO2024145752A1 (fr) Procédé et dispositif de détermination de livre de codes à huit ports d'antennes de liaison montante
WO2023077311A1 (fr) Procédé et appareil de précodage d'une surface intelligente reconfigurable (ris)
WO2023168574A1 (fr) Procédé de rapport de capacité de commutation d'antenne et appareil associé
WO2023168575A1 (fr) Procédé de rapport de capacité de commutation d'antenne et appareil faisant appel à celui-ci

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 202280002110.4

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22948299

Country of ref document: EP

Kind code of ref document: A1