WO2023168604A1 - 通信方法、装置、设备、存储介质、芯片、产品及程序 - Google Patents

通信方法、装置、设备、存储介质、芯片、产品及程序 Download PDF

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Publication number
WO2023168604A1
WO2023168604A1 PCT/CN2022/079786 CN2022079786W WO2023168604A1 WO 2023168604 A1 WO2023168604 A1 WO 2023168604A1 CN 2022079786 W CN2022079786 W CN 2022079786W WO 2023168604 A1 WO2023168604 A1 WO 2023168604A1
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elements
row
determined based
information
bpsk
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PCT/CN2022/079786
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English (en)
French (fr)
Inventor
陈文洪
方昀
黄莹沛
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Oppo广东移动通信有限公司
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Priority to CN202280078590.2A priority Critical patent/CN118318404A/zh
Priority to PCT/CN2022/079786 priority patent/WO2023168604A1/zh
Publication of WO2023168604A1 publication Critical patent/WO2023168604A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413MIMO systems
    • H04B7/0456Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting

Definitions

  • the embodiments of this application relate to the field of mobile communication technology, and specifically relate to a communication method, device, equipment, storage medium, chip, product and program.
  • MIMO Multiple-Input Multiple-Output
  • the transmitted data stream is generally precoded to improve the signal transmission quality.
  • the precoding matrix used for precoding can be obtained in the codebook.
  • the uplink codebook design scheme has been a matter of concern in this field.
  • Embodiments of the present application provide a communication method, device, equipment, storage medium, chip, product and program.
  • embodiments of the present application provide a communication method, which method includes:
  • the terminal equipment receives the transmission precoding matrix indication TPMI information
  • the terminal device determines a first precoding matrix from a codebook based on the TPMI information; the codebook includes multiple precoding matrices;
  • the terminal device uses the first precoding matrix to precode uplink information, and sends the precoded uplink information;
  • each precoding matrix in the codebook includes N row elements, N is an integer greater than or equal to 2 m , m is an integer greater than or equal to 3, and the N row elements satisfy at least one of the following characteristics:
  • At least some of the elements in the i-th row of elements and at least some of the elements in the i+N/2-th row of elements are determined based on the first parameter;
  • At least some of the elements in the 1+N/2th row of elements and at least some of the elements in the i+N/2th row of elements are determined based on the second parameter;
  • the first parameter is determined based on a binary phase shift keying BPSK element or a quadrature phase shift keying QPSK element
  • the second parameter is determined based on a BPSK element or QPSK element or Eight phase shift keying 8PSK elements are determined.
  • embodiments of the present application provide a communication method, which method includes:
  • the network device determines the first precoding matrix from the codebook; the codebook includes multiple precoding matrices;
  • the network device sends transmission precoding matrix indication TPMI information corresponding to the first precoding matrix
  • the network device receives precoded uplink information; the precoded uplink information is determined by precoding the uplink information using the first precoding matrix;
  • each precoding matrix in the codebook includes N row elements, N is an integer greater than or equal to 2 m , m is an integer greater than or equal to 3, and the N row elements satisfy at least one of the following characteristics:
  • At least some of the elements in the i-th row of elements and at least some of the elements in the i+N/2-th row of elements are determined based on the first parameter;
  • At least some of the elements in the 1+N/2th row of elements and at least some of the elements in the i+N/2th row of elements are determined based on the second parameter;
  • the first parameter is determined based on a binary phase shift keying BPSK element or a quadrature phase shift keying QPSK element
  • the second parameter is determined based on a BPSK element or QPSK element or Eight phase shift keying 8PSK elements are determined.
  • an embodiment of the present application provides a communication device.
  • the communication device includes:
  • a communication unit configured to receive transmission precoding matrix indication TPMI information
  • a determining unit configured to determine a first precoding matrix from a codebook based on the TPMI information; the codebook includes multiple precoding matrices;
  • a precoding unit configured to precode uplink information using the first precoding matrix, and send the precoded uplink information
  • each precoding matrix in the codebook includes N row elements, N is an integer greater than or equal to 2 m , m is an integer greater than or equal to 3, and the N row elements satisfy at least one of the following characteristics:
  • At least some of the elements in the i-th row of elements and at least some of the elements in the i+N/2-th row of elements are determined based on the first parameter;
  • At least some of the elements in the 1+N/2th row of elements and at least some of the elements in the i+N/2th row of elements are determined based on the second parameter;
  • the first parameter is determined based on a binary phase shift keying BPSK element or a quadrature phase shift keying QPSK element
  • the second parameter is determined based on a BPSK element or QPSK element or Eight phase shift keying 8PSK elements are determined.
  • an embodiment of the present application provides a communication device.
  • the communication device includes:
  • Determining unit configured to determine the first precoding matrix from the codebook; the codebook includes multiple precoding matrices;
  • a communication unit configured to send transmission precoding matrix indication TPMI information corresponding to the first precoding matrix
  • the communication unit is also configured to receive precoded uplink information; the precoded uplink information is determined by precoding the uplink information using the first precoding matrix;
  • each precoding matrix in the codebook includes N row elements, N is an integer greater than or equal to 2 m , m is an integer greater than or equal to 3, and the N row elements satisfy at least one of the following characteristics:
  • At least some of the elements in the i-th row of elements and at least some of the elements in the i+N/2-th row of elements are determined based on the first parameter;
  • At least some of the elements in the 1+N/2th row of elements and at least some of the elements in the i+N/2th row of elements are determined based on the second parameter;
  • the first parameter is determined based on a binary phase shift keying BPSK element or a quadrature phase shift keying QPSK element
  • the second parameter is determined based on a BPSK element or QPSK element or Eight phase shift keying 8PSK elements are determined.
  • embodiments of the present application provide a terminal device, including: a processor and a memory.
  • the memory stores a computer program that can be run on the processor. When the processor executes the program, the above method is implemented.
  • embodiments of the present application provide a network device, including: a processor and a memory.
  • the memory stores a computer program that can be run on the processor. When the processor executes the program, the above method is implemented.
  • embodiments of the present application provide a computer storage medium that stores one or more programs, and the one or more programs can be executed by one or more processors to implement the above method.
  • embodiments of the present application provide a chip, including: a processor configured to call and run a computer program from a memory, so that a device equipped with the chip executes the above method.
  • inventions of the present application provide a computer program product.
  • the computer program product includes a computer storage medium.
  • the computer storage medium stores a computer program.
  • the computer program includes instructions that can be executed by at least one processor. When The above method is implemented when the instructions are executed by the at least one processor.
  • embodiments of the present application provide a computer program, which causes a computer to execute the above method.
  • each precoding matrix in the codebook includes N row elements, N is an integer greater than or equal to 2 m , m is an integer greater than or equal to 3, and the N row elements satisfy at least one of the following characteristics: i-th At least part of the elements in the row elements and at least part of the elements in the i+N/2th row elements are determined based on the first parameter; at least part of the elements in the 1+N/2th row elements and at least part of the elements in the i+N/2th row elements At least some elements of are determined based on the second parameter.
  • the embodiment of the present application can improve the performance of uplink transmission by providing a codebook for transmission of 8 or more uplink antenna ports.
  • Figure 1 is a schematic diagram of an application scenario according to the embodiment of the present application.
  • Figure 2 is a schematic diagram of a codebook-based PUSCH transmission method in related technologies
  • Figure 4a is a schematic diagram of a horizontal arrangement of 8 antenna ports provided by an embodiment of the present application.
  • Figure 4b is a schematic diagram of a horizontal and vertical two-dimensional arrangement of 8 antenna ports provided by an embodiment of the present application;
  • Figure 4c is a schematic diagram of a four-sided arrangement of eight antenna ports provided by an embodiment of the present application.
  • Figure 5 is a schematic flow chart of a communication method provided by an embodiment of the present application.
  • Figure 6 is a schematic flow chart of another communication method provided by an embodiment of the present application.
  • Figure 7 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 8 is a schematic structural diagram of another 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 according to an embodiment of the present application.
  • Figure 1 is a schematic diagram of an application scenario according to the embodiment of the present application.
  • the communication system 100 may include a terminal device 110 and a network device 120 .
  • the network device 120 may communicate with the terminal device 110 through the air interface. Multi-service transmission is supported between the terminal device 110 and the network device 120.
  • LTE Long Term Evolution
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • IoT Internet of Things
  • NB-IoT Narrow Band Internet of Things
  • eMTC enhanced Machine-Type Communications
  • 5G communication system also known as New Radio (NR) communication system
  • NR New Radio
  • future communication system such as 6G, 7G communication system
  • the network device 120 may be an access network device that communicates with the terminal device 110 .
  • the access network device may provide communication coverage for a specific geographical area and may communicate with terminal devices 110 (eg, UEs) located within the coverage area.
  • terminal devices 110 eg, UEs
  • the terminal equipment 110 in this application can be called user equipment (User Equipment, UE), mobile station (Mobile Station, MS), mobile terminal (Mobile Terminal, MT), subscriber unit, subscriber station, mobile station, remote station, remote station Terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • UE User Equipment
  • MS Mobile Station
  • MT mobile terminal
  • subscriber unit subscriber station, mobile station, remote station, remote station Terminal
  • mobile device user terminal, terminal, wireless communication device, user agent or user device.
  • the terminal device 110 may include one or a combination of at least two of the following: a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a server, a mobile phone ( mobile phone), tablet computer (Pad), computer with wireless transceiver function, handheld computer, desktop computer, personal digital assistant, portable media player, smart speaker, navigation device, smart watch, smart glasses, smart necklace and other wearable products Equipment, pedometer, digital TV, virtual reality (VR) terminal equipment, augmented reality (AR) equipment, wireless terminals in industrial control (industrial control), self-driving (self-driving) Wireless terminals, wireless terminals in remote medical surgery, wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart cities, smart homes Wireless terminals in (smart home) and vehicles, vehicle-mounted equipment, vehicle-mounted modules, wireless modems, handheld devices (handheld), customer terminal equipment (Customer Premise Equipment, CPE), and smart home appliances in the Internet
  • the network device 120 in this embodiment of the present application may include an access network device 121 and/or a core network device 122.
  • the access network equipment 121 may include one or at least a combination of the following: an evolutionary base station (Evolutional Node B, eNB or eNodeB) in a Long Term Evolution (LTE) system, a next-generation wireless access network (Next Generation Radio Access Network (NG RAN) equipment, base stations (gNB) in NR systems, small stations, micro stations, wireless controllers in Cloud Radio Access Network (CRAN), wireless fidelity (Wireless- Fidelity, Wi-Fi) access points, transmission reception points (transmission reception points, TRP), relay stations, access points, in-vehicle equipment, wearable devices, hubs, switches, bridges, routers, future evolved public land mobile Network equipment in the network (Public Land Mobile Network, PLMN), etc.
  • an evolutionary base station Evolutional Node B, eNB or eNodeB
  • NG RAN Next Generation Radio Access Network
  • gNB base stations
  • CRAN Cloud Radio Access Network
  • Wi-Fi Wireless- Fidelity
  • TRP transmission reception points
  • the core network device 122 may be a 5G core network (5G Core, 5GC) device, and the core network device 122 may include one of the following or a combination of at least two: Access and Mobility Management Function (AMF), Authentication Server Function (AUSF), User Plane Function (UPF), Session Management Function (SMF), Location Management Function (LMF), Policy Control Function (Policy Control Function, PCF).
  • AMF Access and Mobility Management Function
  • AUSF Authentication Server Function
  • UPF User Plane Function
  • SMF Session Management Function
  • LMF Location Management Function
  • Policy Control Function Policy Control Function
  • PCF Policy Control Function
  • the core network device may also be the Evolved Packet Core (EPC) device of the LTE network, for example, the session management function + core network data gateway (Session Management Function + Core Packet Gateway, SMF + PGW-C) equipment.
  • EPC Evolved Packet Core
  • SMF+PGW-C can simultaneously realize the functions that SMF and PGW-C can realize.
  • the above-mentioned core network device 122 may also be called by other names, or a new network entity may be formed by dividing the functions of the core network, which is not limited by the embodiments of this application.
  • Various functional units in the communication system 100 can also establish connections through next generation network (NG) interfaces to achieve communication.
  • NG next generation network
  • the terminal device establishes an air interface connection with the access network device through the NR interface for transmitting user plane data and control plane signaling; the terminal device can establish a control plane signaling connection with the AMF through the NG interface 1 (referred to as N1); access Network equipment, such as the next generation wireless access base station (gNB), can establish user plane data connections with UPF through NG interface 3 (referred to as N3); access network equipment can establish control plane signaling with AMF through NG interface 2 (referred to as N2) connection; UPF can establish a control plane signaling connection with SMF through NG interface 4 (referred to as N4); UPF can exchange user plane data with the data network through NG interface 6 (referred to as N6); AMF can communicate with SMF through NG interface 11 (referred to as N11) SMF establishes a control plane signaling connection; SMF can establish a control plane signaling connection with PCF through NG interface 7 (referred to as N7).
  • N1 AMF through the NG interface 1
  • access Network equipment such as the next generation wireless
  • Figure 1 exemplarily shows a base station, a core network device and two terminal devices.
  • the wireless communication system 100 may include multiple base station devices and other numbers of terminals may be included within the coverage of each base station.
  • Equipment the embodiments of this application do not limit this.
  • FIG. 1 only illustrates the system to which the present application is applicable in the form of an example.
  • the method shown in the embodiment of the present application can also be applied to other systems.
  • system and “network” are often used interchangeably herein.
  • the term “and/or” in this article is just an association relationship that describes related objects, indicating that three relationships can exist. For example, A and/or B can mean: A exists alone, A and B exist simultaneously, and they exist alone. B these three situations.
  • the character "/" in this article generally indicates that the related objects are an "or” relationship.
  • the "instruction” mentioned in the embodiments of this application may be a direct instruction, an indirect instruction, or an association relationship.
  • A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B. relation.
  • the "correspondence” mentioned in the embodiments of this application can mean that there is a direct correspondence or indirect correspondence between the two, it can also mean that there is an associated relationship between the two, or it can mean indicating and being instructed. , configuration and configured relationship.
  • the "predefined”, “protocol agreement”, “predetermined” or “predefined rules” mentioned in the embodiments of this application can be preset in the equipment (for example, including terminal equipment and network equipment).
  • predefined can refer to what is defined in the protocol.
  • the "protocol" may refer to a standard protocol in the communication field, which may include, for example, LTE protocol, NR protocol, and related protocols applied in future communication systems. This application does not limit this. .
  • the terminal device When the terminal device sends uplink information, it needs to perform precoding processing on the uplink information to obtain the uplink precoding gain.
  • the uplink information may include a Physical Uplink Shared Channel (PUSCH), or the uplink information may include data sent on the PUSCH.
  • the precoding processing may include two parts: analog domain processing and digital domain processing. Analog domain processing For transmitted analog signals, beamforming can be used to map radio frequency signals to physical antennas. Digital domain processing is for digital signals and is generally performed at baseband. A precoding matrix is used to precode the digital signal and map the transmission layer data to the radio frequency port.
  • PUSCH transmission is divided into codebook-based transmission and non-codebook-based transmission according to different precoding methods.
  • Figure 2 is a schematic diagram of a codebook-based PUSCH transmission method in related technologies. As shown in Figure 2, the method in Figure 2 can correspond to the uplink codebook-based precoding method. The method includes:
  • the terminal device sends SRS on multiple SRS resources in the sounding reference signal (Sounding Reference Signal, SRS) resource set.
  • SRS Sounding Reference Signal
  • the network device can configure an SRS resource set to the terminal device; the SRS resource set can be used for codebook transmission.
  • SRS on different SRS resources may correspond to different beams.
  • S202 may be performed.
  • the network device indicates at least one of the following to the terminal device: SRS Resource Indicator (SRI), Rank Indicator (RI), Transmit Precoding Matrix Indicator (TPMI), modulation and coding Strategy (Modulation and Coding Scheme, MCS).
  • SRI SRS Resource Indicator
  • RI Rank Indicator
  • TPMI Precoding Matrix Indicator
  • MCS Modulation and Coding Scheme
  • transmitting the precoding matrix indication may also be referred to as transmitting the precoding matrix indication in other embodiments.
  • the network device may select a target SRS resource from multiple SRS resources, and indicate the target SRS resource index to the terminal device through the SRI.
  • the network device can be used to obtain uplink channel state information (Channel State Information, CSI) based on the target SRS resource.
  • the terminal device can perform simulated beamforming on the data using the beam corresponding to the SRS resource indicated by the SRI.
  • the network device can select the target SRS resource from multiple SRS resources based on at least one of the following: received signal strength indication (Received Signal Strength Indication, RSSI), reference signal received power (Reference Signal Received Power, RSRP), Reference signal received quality (RSRQ), signal to interference plus noise ratio (Signal to Interference Noise Ratio, SINR).
  • RSSI received Signal Strength Indication
  • RSRP reference signal received power
  • RSSRQ Reference signal received quality
  • SINR Signal to Interference Noise Ratio
  • the network device can indicate: RI and/or TPMI to the terminal device through DCI.
  • the network device can indicate the MCS to the terminal device.
  • At least two of SRI, RI, TPMI, and MCS can be in one signaling or in multiple signalings.
  • at least one of SRI, RI, TPMI, and MCS may be in high-layer signaling or DCI signaling.
  • the terminal device sends the precoded data, or the precoded data and the demodulation reference signal to the network device.
  • the terminal device may determine the uplink precoding matrix corresponding to the RI and TPMI from the codebook according to the RI and TPMI. For example, in some embodiments, the terminal device can precode the data according to the uplink precoding matrix corresponding to the RI and TPMI, and then perform modulation and coding according to the indicated modulation and coding strategy, and then perform the modulation and coding according to the indicated SRI.
  • the corresponding beam of the SRS resource performs simulated beamforming on the data, thereby sending the data to the network device.
  • the uplink supports 2-port and 4-port PUSCH transmission.
  • the following describes the codebooks used in the case of different numbers of antenna ports and different transmission layers (if the transmission layer is a single layer, different multiple access modes are also distinguished):
  • Table 1 is a schematic diagram of the codebook corresponding to 2 antenna ports and layer 1 transmission:
  • Table 2 is a schematic diagram of the codebook corresponding to 4 antenna ports, 1-layer transmission and Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing (DFT-S-OFDM):
  • Table 3 is a schematic diagram of the codebook corresponding to 4 antenna ports, layer 1 transmission and cyclic prefix-orthogonal frequency division multiplexing (Cyclic Prefix-Orthogonal Frequency Division Multiplexing, CP-OFDM):
  • Table 4 is a schematic diagram of the codebook corresponding to 2 antenna ports, 2-layer transmission and DFT-S-OFDM:
  • Table 5 is a schematic diagram of the codebook corresponding to 4 antenna ports, layer 2 transmission and CP-OFDM:
  • Table 6 is a schematic diagram of the codebook corresponding to 4 antenna ports, 3-layer transmission and CP-OFDM:
  • Table 7 is a schematic diagram of the codebook corresponding to 4 antenna ports, 4-layer transmission and CP-OFDM:
  • the codeword can be understood as a precoding matrix.
  • NR's downlink Type I codebook supports codebooks with more than 4 ports.
  • DFT discrete Fourier Transform
  • W 2 only feeds back the phase between the two polarization directions.
  • the two beam groups corresponding to Figure 3a are both horizontal port beam groups.
  • the two beam groups corresponding to Figure 3b are both beam groups of two-dimensional ports.
  • the distance between two adjacent vertical beams is d 1
  • the distance between two adjacent horizontal beams is d 2 .
  • d 1 and d 2 may be the same, or d 1 and d 2 may be different.
  • the two beam groups may be beam group 1 and beam group 2.
  • Beam group 1 is represented by white and beam group 2 is represented by gray.
  • Codebook Subset Restriction for Type I codebooks is also introduced in NR, and codebook subset constraints can be made separately for each DFT beam and each Rank.
  • the codebook subset constraints are configured by network equipment. When reporting CSI, the terminal equipment cannot report CSI using PMI precoding corresponding to the constrained beam, or cannot report using PMI precoding that is constrained under a certain Rank.
  • CSI but the size of CSI can be independent of codebook subset constraints. For example, if a PMI is restricted and cannot be reported, the terminal device will no longer report CSI precoded using this PMI.
  • Figure 4a is a schematic diagram of a horizontal arrangement of eight antenna ports provided by an embodiment of the present application. As shown in Figure 4a, the eight antenna ports correspond to four antenna port groups, and the four antenna port groups are arranged horizontally.
  • Figure 4b is a schematic diagram of a horizontal and vertical two-dimensional arrangement of 8 antenna ports provided by an embodiment of the present application. As shown in Figure 4b, the 8 antenna ports correspond to four antenna port groups, and the four antenna port groups are arranged in a horizontal and vertical two-dimensional arrangement.
  • Figure 4c is a schematic diagram of a four-sided arrangement of eight antenna ports provided by an embodiment of the present application. As shown in Figure 4c, the eight antenna ports correspond to four antenna port groups, and the four antenna port groups are arranged on four sides. When 8 antenna ports are arranged on four sides, the antennas corresponding to the 8 antenna ports can be respectively arranged on the four sides or corners of the electronic device.
  • Antenna port 0 and antenna port 4 are an antenna port group
  • antenna port 1 and antenna port 5 are an antenna port group
  • antenna port 2 and antenna port 6 are an antenna port.
  • group, antenna port 3 and antenna port 7 are an antenna port group.
  • each transmission can be obtained through different combinations of two parameters: DFT vectors corresponding to different beams and the phase difference between the two polarization directions.
  • the precoding vector of the layer these combinations form the codebook of the corresponding port.
  • this codebook design method is mainly based on horizontally arranged or horizontally and vertically arranged two-dimensional antenna arrays. It does not consider some special antenna arrays, such as the four-sided antenna arrangement of CPE type terminal equipment, which will affect the performance of uplink transmission. For these special antenna arrangements, targeted codebook design can be considered to improve the transmission performance of these types of terminal equipment.
  • Figure 5 is a schematic flowchart of a communication method provided by an embodiment of the present application. As shown in Figure 5, the method includes:
  • the terminal device receives the transmission precoding matrix indication TPMI information.
  • the terminal device receives the transmission precoding matrix indication TPMI information sent by the network device.
  • TPMI information can be carried through the TPMI information indication field.
  • TPMI information can be indicated through downlink signaling, and downlink signaling can be used to schedule PUSCH.
  • TPMI information can be used to indicate the TPMI index.
  • the TPMI index can be selected in the index range 0 to M-1.
  • the TPMI information can be used to indicate a TPMI index, so that the terminal device can determine the first precoding matrix corresponding to the one TPMI index from the codebook based on the one TPMI index.
  • the TPMI information can be used to indicate multiple TPMI indexes, so that the terminal device can determine a TPMI index from the multiple TPMI indexes, and then determine the first precoding matrix corresponding to the one TPMI index from the codebook, or , so that the terminal device can determine multiple precoding matrices corresponding to multiple TPMI indexes one-to-one, and select the first precoding matrix from the multiple precoding matrices.
  • TPMI information may be used to indicate the number of rows and/or columns of the precoding matrix.
  • the terminal device may determine the first precoding matrix corresponding to the number of rows and/or columns of the precoding matrix indicated by the TPMI information based on the number of rows and/or columns of the precoding matrix indicated by the TPMI information.
  • the TPMI information may be used to indicate the value of at least one element in the precoding matrix.
  • the terminal device can determine the first precoding matrix corresponding to the value of at least one element in the precoding matrix from the codebook based on the value of at least one element in the precoding matrix.
  • the TPMI information can be used to indicate the values of all undefined elements in the precoding matrix.
  • the terminal device can determine the first precoding matrix based on the values of all undefined elements in the precoding matrix.
  • the value of an undefined element may be the value of an element not defined in the protocol.
  • the TPMI information can be used to indicate the values of some undefined elements in the precoding matrix.
  • the terminal device can determine the first precoding matrix from the codebook based on the values of some undefined elements in the precoding matrix. For example, the terminal device may determine from the codebook one or more precoding matrices that have the same values as some undefined elements in the precoding matrix, and determine the first precoding matrix from the one or more precoding matrices. matrix.
  • the TPMI information may be used to indicate the value of at least one row of elements in the precoding matrix.
  • the TPMI information may be used to indicate the value of at least one row of elements from the first to eighth rows in the precoding matrix.
  • TPMI information may be used to indicate the values of all elements in a row of elements.
  • TPMI information can be used to indicate that the first element in a row of elements is a 1 and the second element is a 0.
  • TPMI information may be used to indicate the values of some elements in a row of elements.
  • TPMI information can be used to indicate that the first element in a row of elements is 1, and the terminal device can determine that the second element in the row is a configured value, such as 0 or 1, etc. based on its own configuration information or protocol settings.
  • the value of one or more rows of elements not indicated by the TPMI information can be the value set in the protocol.
  • the TPMI information may be used to indicate the value of at least one column of elements in the precoding matrix. For example, when the number of columns is 2, the TPMI information can be used to indicate the values of elements in the first column and/or the second column in the precoding matrix. In some embodiments, TPMI information may be used to indicate the values of all elements in a column of elements. For example, TPMI information can be used to indicate that the first value in a column of elements is 1, the second element is 0, and the values from the third element to the last element are all 1. In other embodiments, TPMI information may be used to indicate the values of some elements in a column of elements.
  • TPMI information can be used to indicate that the first value of a column element is 1, and the values of the fourth element to the last element are all 1.
  • the terminal device can determine the second value of the column based on its own configuration information or protocol settings.
  • the first element is the configured value, such as 0 or 1, etc.
  • the third element is the configured value, such as 0 or 1, etc.
  • the value of one or more column elements not indicated by the TPMI information can be the value set in the protocol.
  • the terminal device determines a first precoding matrix from a codebook based on the TPMI information; the codebook includes multiple precoding matrices.
  • the precoding matrix included in the codebook may be called a codeword, and one codeword may be a precoding matrix.
  • the codebook may be a codebook corresponding to 8 antenna ports.
  • the codebook may include codebooks corresponding to 8 antenna ports and other numbers of antenna ports (eg, 16 antenna ports or 32 antenna ports).
  • the terminal device may determine the first precoding matrix from multiple precoding matrices included in the codebook based on the TPMI information. In this way, the first precoding matrix determined by the terminal device may correspond to the indicated TPMI information.
  • the codebook may be a codebook pre-agreed by the protocol.
  • the terminal device side and the network device side can maintain the same codebook.
  • the codebook can be stored in the terminal device.
  • the codebook can be stored in the baseband chip of the terminal device.
  • the codebook may be stored in other components than the baseband chip, such as the main processing chip.
  • a codebook may correspond to at least one of the following: a preset number of antenna ports, a preset number of transmission layers, and a preset uplink multiple access method.
  • codebooks corresponding to different numbers of antenna ports may be different.
  • codebooks corresponding to different transmission layer numbers may be different.
  • codebooks corresponding to different uplink multiple access modes (which may also be called uplink multiple access modes) may be different.
  • DFT-S-OFDM and CP-OFDM are different uplink multiple access methods.
  • the uplink multiple access method corresponding to the codebook may include DFT-S-OFDM or CP-OFDM.
  • one codebook corresponds to multiple numbers of antenna ports and/or multiple numbers of transmission layers and/or multiple uplink multiple access modes.
  • the terminal device may determine the codebook based on at least one of the number of antenna ports, the number of transmission layers, and the uplink multiple access mode.
  • one or more of the number of antenna ports, the number of transmission layers, and the uplink multiple access method may be determined by the terminal device based on its own configuration information.
  • one or more of the number of antenna ports, the number of transmission layers, and the uplink multiple access method may be determined by the terminal device based on the received indication information of the network device.
  • determining the first precoding matrix from the codebook may include: determining the first precoding matrix from a plurality of precoding matrices included in the codebook.
  • the terminal device uses the first precoding matrix to precode uplink information, and sends the precoded uplink information.
  • the uplink information may include uplink data information and/or uplink control information.
  • the uplink information may include PUSCH or data corresponding to PUSCH.
  • the terminal equipment uses the first precoding matrix to precode the PUSCH or the data corresponding to the PUSCH, and sends the precoded PUSCH or the data corresponding to the precoded PUSCH.
  • the terminal device may also use the first precoding matrix to precode the uplink control information, and send the precoded uplink control information.
  • the uplink control information may include a physical uplink control channel (Physical Uplink Control Channel, PUCCH) or uplink control information (Uplink Control Information, UCI).
  • PUCCH Physical Uplink Control Channel
  • UCI Uplink Control Information
  • the terminal device can send the precoded uplink information to the network device.
  • the terminal device when it obtains precoded uplink information, it can also use MCS to modulate and code the precoded information, and send the modulated and coded information.
  • the MCS may be sent by the network device to the terminal device, or the MCS may be determined by the terminal device based on its own configuration information.
  • the terminal device after obtaining the precoded uplink information, the terminal device can send the precoded uplink information to the modulation and coding module, so that the modulation and coding module modulates and codes the precoded information. .
  • the number of antenna ports of the terminal device may be eight. In other embodiments, the number of antenna ports of the terminal device may be other numbers greater than 8, such as 16 or 32 and so on.
  • the number of antenna ports of the terminal device may be preconfigured by the terminal device, or the number of antenna ports of the terminal device may be the number of available antenna ports indicated by the network device to the terminal device.
  • each precoding matrix in the codebook includes N row elements, N is an integer greater than or equal to 2 m , m is an integer greater than or equal to 3, and the N row elements satisfy at least one of the following characteristics :
  • At least some of the elements in the i-th row of elements and at least some of the elements in the i+N/2-th row of elements are determined based on the first parameter;
  • At least some of the elements in the 1+N/2th row of elements and at least some of the elements in the i+N/2th row of elements are determined based on the second parameter;
  • the first parameter is determined based on a binary phase shift keying BPSK element or a quadrature phase shift keying QPSK element
  • the second parameter is determined based on a BPSK element or QPSK element or Eight phase shift keying 8PSK elements are determined.
  • the number of rows in the precoding matrices included in the codebook is the same, and they are all N rows.
  • the value of m can be 3, 4, or 5, etc., and correspondingly, the value of N can be 8, 16, or 32, etc.
  • the value of the first row element may be determined by the terminal device based on its own configuration information, or may be specified by the protocol, or may be configured by the network device to the terminal device.
  • the network device may include the value of the row 1 element in the TPMI information, or the network device may indicate the value of the row 1 element through other information.
  • the value of the first row element can be selected from the preset values.
  • the value of the first row element can be based on the value selected from ⁇ 1,-1,j,-j,0 ⁇ . The value is determined.
  • the values in the elements in the first row can be the same, or at least two values in the elements in the first row are different.
  • At least some of the elements in the embodiments of the present application may be all elements or part of the elements. At least some elements of different rows can be in the same position or in different positions. For example, at least part of the elements in the 1st to N/2th rows may be the first half of the elements in a row, and at least some of the elements in the N/2+1 to Nth rows may be the second half of the elements in the row.
  • At least part of the elements in the i-th row and at least part of the elements in the i+N/2-th row may be the same or different. In some embodiments, determining at least part of the i-th row elements based on the first parameter is the same as or different from determining at least part of the i+N/2-th row elements based on the first parameter.
  • the N row elements may satisfy: at least part of the elements in the i-th row and at least part of the elements in the i+N/2-th row elements are determined based on the first parameter.
  • the elements in the N rows may satisfy: at least part of the elements in the 1+N/2th row of elements and at least part of the elements in the i+N/2th row of elements are determined based on the second parameter.
  • the values in at least some of the elements in the 1st row to the N/2th row may be determined by the terminal device based on its own configuration information, or may be specified by the protocol, or may be network device configurations. of.
  • the values of at least some elements among the elements in the 1st row to the N/2th row may be included in the TPMI information or other information.
  • the N row elements may satisfy: at least part of the i-th row elements and at least part of the i+N/2-th row elements are determined based on the first parameter, and, the 1+N/2-th row elements At least part of the row elements and at least part of the i+N/2th row elements are determined based on the second parameter. In this way, at least part of the elements in the i+N/2th row are determined not only based on the first parameter, but also based on the second parameter.
  • At least part of the elements in the i+N/2th row can be determined by the product of the first parameter and the second parameter, or can be determined based on the sum of the first parameter and the second parameter, or can be determined based on the first parameter and the second parameter.
  • Other calculation methods of parameters are obtained.
  • the first parameter may correspond to i-1.
  • the first parameter may be expressed as xi -1 .
  • at least some of the elements in row 2 and at least some of the elements in rows 2+N/2 are determined based on x 1
  • at least some of the elements in row 3 and at least some of the elements in rows 3+N/2 At least part of the elements are determined based on x 2
  • at least part of the elements in row 4 and at least part of the elements in row 4+N/2 are determined based on x 3 , and so on.
  • the second parameter may be expressed as y 0 and y i-1 .
  • at least some of the elements in row 1+N/2 are determined based on y 0 .
  • at least part of the elements in the i+N/2th row is determined based on y i-1 .
  • at least part of the elements in the 2+N/2th row is determined based on y 1
  • the 3+N/2th row of elements is determined based on y 1.
  • At least part of the elements in the row elements are determined based on y 2
  • at least part of the elements in the 4+N/2 row are determined based on y 3 , and so on.
  • first parameter and the second parameter can be identified by other letters and/or subscripts. , the embodiment of the present application does not limit this.
  • the number of N may be the number of antenna ports corresponding to the precoding matrix, and each row of elements in the N rows of elements may correspond to one antenna port.
  • N rows of elements can correspond to N/2 groups of antenna ports.
  • the elements in the 1st row and the 1+N/2th row elements may correspond to a group of antenna ports
  • the i-th row elements and the i+N/2th row elements may correspond to a group of antenna ports, where i Different values correspond to different antenna ports.
  • elements in row 2 and elements in row 2+N/2 can correspond to a group of antenna ports
  • elements in row 3 and elements in row 3+N/2 can correspond to a group of antenna ports
  • elements in row 4 and elements in row 4+ N/2 row elements can correspond to a set of antenna ports and so on.
  • a group of antenna ports corresponds to a group of polarized antennas.
  • the first parameter (eg, x i-1 ) may represent the relative phase between the antenna port groups.
  • the second parameter (y 0 , y i-1 ) can represent the relative phase within the antenna port group.
  • the codebook is constructed based on the inter-group phase and the intra-group phase by grouping the antenna ports, which can effectively match Channels of different antennas to achieve coherent transmission between different antenna ports and improve the performance of uplink transmission.
  • At least part of the elements in the i-th row and at least part of the elements in the i+N/2-th row are based on the same first parameter value.
  • the first parameter x i-1 on which at least part of the elements in the i-th row is based is A
  • the first parameter x i-1 on which at least part of the elements in the i+N/2th row is based is The value of is A.
  • the values of x i-1 can be the same or different.
  • the values of at least some elements in the i-th row may be determined based on BPSK elements or QPSK elements.
  • the phase shift keying elements on which the values of at least some elements in different rows are based are the same or different.
  • the values of at least some elements in rows 2 to N/2 can all be determined based on BPSK elements or all can be determined based on QPSK elements.
  • the values of at least some elements in row 2 can be determined based on BPSK elements
  • the values of at least some elements in row 3 can be determined based on QPSK elements
  • the values of at least some elements in row 4 can all be determined based on BPSK elements.
  • the values of at least part of the elements in the 1+N/2th row and at least part of the elements in the i+N/2th row may be the same or different.
  • at least some of the elements in the 1+N/2th row are determined based on the second parameter being y 0
  • at least some of the elements in the i+N/2th row are determined based on the second parameter being y i-1 .
  • the value of y 0 may be the same as or different from the value of y i-1 (i may be an integer greater than or equal to 2 and less than or equal to N/2).
  • the values of y i-1 can be the same or different.
  • At least part of the elements in the 1+N/2th row or at least part of the elements in the i+N/2th row may be determined based on BPSK elements, QPSK elements, or 8PSK elements.
  • the phase shift keying elements on which the values of at least some elements in different rows are based are the same or different.
  • at least some of the elements in the 1+N/2th row and at least some of the elements in the i+N/2th row can be determined based on BPSK elements or both can be based on QPSK elements or both can be determined based on 8PSK elements.
  • At least some of the elements in row 1+N/2 are determined based on QPSK elements, at least some of the elements in row 2+N/2 are determined based on QPSK elements, and at least some of the elements in row 3+N/2 are determined based on QPSK elements. Some elements are determined based on QPSK elements, and at least some of the elements in row 4+N/2 are determined based on 8PSK elements.
  • N may be 8, indicating that the terminal device has 8 antenna ports, and the 8 antenna ports correspond to 4 antenna port groups.
  • the four antenna port groups may be arranged on four sides or corners of the terminal device.
  • the antennas are distributed on four sides. Each side can have a set of dual-polarized antennas, and the correlation between the antennas on different sides is low.
  • the antenna port grouping method is used to construct a codebook based on the inter-group phase and the intra-group phase, which can effectively match the channels of different antennas, thereby achieving coherent transmission between different antenna ports and improving the performance of uplink transmission.
  • the number of columns in the precoding matrix in the codebook can be the same as the number of transmission layers. For example, when the number of transmission layers is 1, the number of columns of the precoding matrix is 1. When the number of transmission layers is 2, the number of columns of the precoding matrix is 1. The number of columns of the encoding matrix is 2 and so on.
  • the N row elements satisfy: the i-th row element is determined based on the first parameter, and the i+N/2-th row element is based on The first parameter and the second parameter are determined.
  • the precoding matrix has one column of elements.
  • the N row elements satisfy: the i-th row element is determined based on the first parameter x i-1 , and the i+N/2-th row element is determined based on the first parameter x i-1 and the The second parameter y i-1 is determined.
  • the elements in the 2nd row are determined based on the first parameter x 1
  • the elements in the 3rd row are determined based on the first parameter x 2
  • the elements in the 4th row are determined based on the first parameter x 3 , etc.
  • the 2+N/2th row element is determined based on the first parameter x 1 and the second parameter y 1
  • the 3+N/2th row element is determined based on the first parameter x 2 and the second parameter y 1
  • the second parameter y 2 is determined
  • the 4+N/2th row element is determined based on the first parameter x 3 and the second parameter y 3 .
  • the i+N/2th row element is determined based on the first parameter and the second parameter, which may include: the i+N/2th row element is determined based on the first parameter and the second parameter.
  • the product of the second parameter is determined either based on the sum of the first parameter and the second parameter, or based on other mathematical calculation results of the first parameter and the second parameter.
  • the first row elements may be determined based on one of ⁇ 1,-1,j,-j,0 ⁇ .
  • the first row elements can be determined based on 1.
  • the 1+N/2 row elements can be determined based on y 0
  • y 0 can be determined based on BPSK elements, QPSK elements, or 8PSK elements.
  • y 0 may be determined based on a value of the BPSK element or the QPSK element or the 8PSK element.
  • the N row elements satisfy:
  • At least some of the elements in the i-th row of elements and at least some of the elements in the i+N/2-th row of elements are determined based on the first parameter, and the vector corresponding to the element in the 1st row and the 1+N/th row of elements are determined based on the first parameter.
  • the vectors corresponding to the elements in the 2nd row are orthogonal, and the vectors corresponding to the elements in the i-th row are orthogonal to the vectors corresponding to the elements in the i+N/2th row.
  • two vectors can be orthogonal because the inner product of the two vectors is 0.
  • the number of transmission layers is 2, there are two columns of elements in the precoding matrix.
  • at least part of the elements in the i-th row and at least part of the elements in the i+N/2-th row may be determined based on the first parameter x i-1 .
  • each element in row 1 elements can be determined based on one of ⁇ 1,-1,j,-j,0 ⁇ .
  • the values of the two elements in the first row of elements can be the same or different.
  • both elements of row 1 have a value of 1.
  • the values of the two elements in row 1 are 1 and -1, or -1 and 1, or 1 and 0, or 0 and 1.
  • any one of the two elements in the 1+N/2 row elements can be determined based on the BPSK element or the QPSK element or the 8PSK element.
  • the two elements in the elements of the 1+N/2 row can both be determined based on a value in the BPSK element, or both can be determined based on a value in the QPSK element, or both can be determined based on a value in the 8PSK element.
  • the values of the two elements in the elements of row 1+N/2 can be the same or different.
  • at least one of the two elements in the 1+N/2 row elements may be 0.
  • two elements in the i-th row of elements and two elements in the i+N/2-th row of elements may both be determined based on the first parameter x i-1 .
  • the first element in the i-th row of elements is determined based on x i-1
  • the second element in the i-th row of elements is determined based on x i-1
  • the first element in the i+N/2 row of elements is determined based on x i-1
  • the second element in the element of the i+N/2th row is determined based on xi -1 .
  • the values of the two elements of the i-th row element can be the same.
  • an element among the elements in the i-th row and an element among the elements in the i+N/2-th row may both be determined based on x i-1 .
  • the number of columns in which an element in the i-th row is located may be different from the number of columns in which an element in the i+N/2-th row is located.
  • an element in the i-th row is located in the first column
  • an element in the i+N/2-th row is located in the second column
  • an element in the i-th row is located in the second column.
  • the number of columns where it is located is the second column
  • the number of columns where an element in the i+N/2th row of elements is located is the first column.
  • each row includes two elements, and the N rows of elements satisfy:
  • All elements of the i-th row and all elements of the i+N/2-th row are determined based on the first parameter, and the elements of the 1+N/2-th row and the i+N/2-th row All elements are also individually determined based on one of the following: ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ -j,j ⁇ .
  • each element of the i-th row and each element of the i+N/2-th row may be determined based on the first parameter x i-1 .
  • each element of row 2 and each element of row 2+N/2 can be determined based on the first parameter x 1
  • each element of row 3 and each element of row 3+N/2 They may all be determined based on the first parameter x 2
  • each element of the 4th row and each element of the 4+N/2 row may be determined based on the first parameter x 3 .
  • the values of the two elements in each row from row 1 to row N/2 can be the same.
  • the values of the two elements in the first row can both be 1, the values of the two elements in the second row can both be B1, the values of the two elements in the third row can both be B2, and the values of the two elements in the fourth row can both be B2.
  • the value of both elements of the row can be B3.
  • the values of B1, B2 and B3 may be the same, or the values of at least two of B1, B2 and B3 may be different from each other.
  • the values of two elements in at least one row from row 1 to row N/2 may be different.
  • the values of the two elements in the first row can be 1 and -1 respectively
  • the values of the two elements in the second row can be -1 and -1 respectively
  • the values of the two elements in the third row can be are 1 and 1 respectively
  • the values of the two elements in the fourth row can be j and 1 respectively.
  • all elements of the i+N/2th row are determined not only based on the first parameter x i-1 , but also based on one of the following: ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ -j,j ⁇ .
  • the first element of the 2+N/2 row is determined based on the first parameter and 1 (for example, determined based on the product of the first parameter and 1 )
  • the second element of row 2+N/2 is determined based on the first parameter and -1 (for example, determined based on the product of the first parameter and -1).
  • all elements of the 1+N/2 row or two different rows corresponding to the i+N/2 row can be based on ⁇ 1,-1 ⁇ , ⁇ j ,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ -j,j ⁇ , or both based on ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ Or ⁇ -j,j ⁇ OK.
  • the two elements in row 1+N/2 can be determined based on the two values ⁇ 1,-1 ⁇ , and the two elements in row 2+N/2 can be determined based on the two values ⁇ 1,-1 ⁇ respectively.
  • values are determined
  • the two elements in row 3+N/2 can be determined based on the two values of ⁇ j,-j ⁇
  • the two elements in row 4+N/2 can be determined based on ⁇ 1,-1 ⁇ respectively.
  • These two values are determined.
  • the two elements in row 1+N/2 can be determined based on the two values ⁇ 1,-1 ⁇ respectively
  • the two elements in row 2+N/2 can be determined based on the values ⁇ 1,-1 ⁇ respectively.
  • Two values are determined.
  • the two elements in row 3+N/2 can be determined based on the two values of ⁇ 1,-1 ⁇ respectively.
  • the two elements in row 4+N/2 can be determined based on ⁇ 1,-1 ⁇ respectively. ⁇ These two values are determined.
  • each row includes two elements, and the N rows of elements satisfy:
  • the first column element among the two elements in the i-th row is determined based on the first parameter
  • the second column element among the two elements in the i+N/2th row is determined based on the first parameter
  • the second column element among the two elements in the i-th row is 0, and the first column element among the two elements in the i+N/2th row is 0.
  • the first column element of the two elements in row 1 is determined based on 1, and the second column element is 0.
  • the first column element is 0, and the second column element is determined based on 1.
  • the precoding matrices in the codebook may be power normalized.
  • the precoding matrix in the codebook may also be determined based on the first coefficient.
  • the first coefficient may be determined based on the number of non-zero elements in the precoding matrix. For example, the number of non-zero elements in the precoding matrix is j, and the first coefficient can be
  • the precoding matrix in the codebook may also be determined based on the second coefficient, and the second coefficient may be 1.
  • the precoding matrix in the codebook may also be determined based on a third coefficient, and the third coefficient may be determined based on the number of all elements in the precoding matrix.
  • the number of all elements in the precoding matrix is k
  • the first coefficient can be
  • the values of x 1 , x 2 , and x 3 are all 1.
  • any one of x 1 , x 2 , and x 3 is one of the BPSK elements.
  • x 1 , x 2 , and x 3 may all be values of BPSK elements.
  • any one of x 1 , x 2 , and x 3 is one of the BPSK elements, which may be determined by the terminal device according to its own configuration information, or may be configured by the network device to the terminal device, or, It can be set when designing the codebook.
  • any one of x 1 , x 2 , and x 3 is one of the QPSK elements.
  • x 1 , x 2 , and x 3 may all be values of QPSK elements.
  • any one of x 1 , x 2 , and x 3 is one of the QPSK elements, which may be determined by the terminal device according to its own configuration information, or may be configured by the network device to the terminal device, or, It can be set when designing the codebook.
  • x 1 is 1, and any one of x 2 and x 3 is one of the BPSK elements or one of the QPSK elements.
  • x 1 is 1
  • x 2 can be one of the BPSK elements or one of the QPSK elements
  • x 3 can be one of the BPSK elements or one of the QPSK elements.
  • either x 2 or x 3 is one of the BPSK elements or one of the QPSK elements, which may be determined by the terminal device according to its own configuration information, or may be sent by the network device to the terminal device. Configured, or can be set when designing the codebook.
  • x 2 is 1, and either x 1 or x 3 is one of the BPSK elements or one of the QPSK elements.
  • x 2 is 1, x 1 can be one of the BPSK elements or one of the QPSK elements, and x 3 can be one of the BPSK elements or one of the QPSK elements.
  • either x 1 or x 3 is one of the BPSK elements or one of the QPSK elements, which may be determined by the terminal device according to its own configuration information, or may be provided by the network device to the terminal device. Configured, or can be set when designing the codebook.
  • the method when N is 8, at least some of the elements in the i-th row of elements and at least some of the elements in the i+N/2-th row of elements are determined based on x i-1 ; in When the value of i is 2 to 4, x i-1 is correspondingly expressed as x 1 , x 2 and x 3 ; wherein, the method also includes:
  • the terminal device receives first information; the first information is used to indicate that any one of x 1 , x 2 , and x 3 is one of the BPSK elements or one of the QPSK elements; or, in x 1 When x 2 is 1, the first information is used to indicate that either x 2 or x 3 is one of the BPSK elements or one of the QPSK elements; or, when x 2 is 1, x 1 or x Any one of 3 is one of the BPSK elements or one of the QPSK elements.
  • the terminal device may receive the first information sent by the network device.
  • the terminal device may default x 1 to 1.
  • 1 bit is used in the first information to indicate whether x 2 and x 3 use BPSK elements or QPSK elements.
  • the terminal device may default x 2 to 1.
  • 1 bit is used in the first information to indicate whether x 1 and x 3 use BPSK elements or QPSK elements.
  • the first information indicates from what element any one of x 1 , x 2 , and x 3 takes a value, or the first information indicates from what element any one of x 2 , x 3 takes a value, or the first information indicates The information indicates from which element any one of x 1 and x 3 takes a value, thereby enabling the terminal device to determine from which element each of x 1 , x 2 and x 3 takes a value, which is helpful for the terminal device to obtain a value from the codebook Determine the precoding matrix. For example, 1 bit is used in the first information to indicate whether x 1 , x 2 , and x 3 all use BPSK elements or QPSK elements.
  • the terminal device determines the length of the TPMI information and/or the number of precoding matrices in the codebook (which may also be referred to as the size of the codebook) based on the first information.
  • the following methods may be considered for the possible values of ⁇ x 1 , x 2 , x 3 ⁇ and the corresponding indication methods of TPMI information:
  • Method 1 The values of x 1 , x 2 , and x 3 are always 1. At this time, no information is needed in the TPMI information to indicate x 1 , x 2 , x 3 .
  • x 1 , x 2 , x 3 are any one of the BPSK elements ⁇ 1,-1 ⁇ respectively.
  • x i including at least one of x 1 , x 2 , and x 3
  • x 1 , x 2 , x 3 are any of the QPSK elements ⁇ 1,-1,j,-j ⁇ respectively.
  • x i it is necessary to use 2 bits in the TPMI information to indicate at least one of x 1 , x 2 , and x 3 respectively.
  • x 1 is always equal to 1
  • x 2 and x 3 are any one of the BPSK elements or any one of the QPSK elements respectively. At this time, it is necessary to use 1 bit or 2 bits respectively in the TPMI information to indicate at least one of x 2 and x 3 .
  • x 2 is always equal to 1
  • x 1 and x 3 are any one of the BPSK elements or any one of the QPSK elements respectively. At this time, it is necessary to use 1 bit or 2 bits respectively in the TPMI information to indicate at least one of x 1 and x 3 .
  • the terminal device may receive the configuration information of the network device to determine which of the above methods is used to obtain the value of at least one of ⁇ x 1 , x 2 , x 3 ⁇ , thereby obtaining the codebook.
  • the terminal device may also receive first information of network device configuration, where the first information is used to indicate whether to use BPSK elements or QPSK elements in the above method.
  • the first information is used to indicate that x 1 , x 2 , and x 3 are any one of the BPSK elements (method 2), or any one of the QPSK elements (method 3); or, in method 4,
  • the first information determines the value range of x 1 , x 2 , and x 3 , it also determines the number of bits used to indicate x 1 , x 2 , and x 3 in the TPMI information.
  • the terminal device can determine based on the first information.
  • the size of the TPMI information field ie, the length of the TPMI information, or the number of bits used to indicate the precoding matrix
  • the length of the DCI may be determined based on the size of the TPMI information field and the size of other information in the DCI.
  • N when N is 8, at least some of the elements in the 1+N/2th row of elements are determined based on y 0 , and at least some of the elements in the i+N/2th row of elements are determined based on Yi i-1 is determined.
  • yi i-1 is correspondingly expressed as y 1 , y 2 and y 3 ; wherein, the method also includes:
  • the terminal device receives second information; the second information is used to indicate that any one of y 0 , y 1 , y 2 , and y 3 is one of the BPSK elements, one of the QPSK elements, or One of the 8PSK elements described above.
  • the terminal device may receive the second information sent by the network device.
  • the second information may indicate that any one of y 0 , y 1 , y 2 , and y 3 is one of the BPSK elements, or the second information may indicate that any of y 0 , y 1 , y 2 , and y 3 is one of the BPSK elements.
  • One is one of the QPSK elements, or the second information may indicate that any one of y 0 , y 1 , y 2 , and y 3 is one of the 8PSK elements.
  • the second information may indicate that y 0 , y 1 , y 2 , and y 3 may take values from different elements among BPSK elements, QPSK elements, and 8PSK elements.
  • the second information indicates from what element any one of y 0 , y 1 , y 2 , and y 3 takes a value, so that the terminal device can determine the value of each of y 0 , y 1 , y 2 , and y 3 from The value of what element is helpful for the terminal device to determine the precoding matrix from the codebook.
  • the terminal device determines the length of the TPMI information and/or the number of precoding matrices in the codebook based on the second information.
  • the terminal device receives second information of network device configuration, where the second information is used to indicate the value range of y 0 , y 1 , y 2 , and y 3 .
  • the second information is used to indicate whether y 0 , y 1 , y 2 , and y 3 are all BPSK elements, all QPSK elements, or all 8PSK elements.
  • y 0 , y 1 , y 2 , and y 3 can adopt the same value range, for example, they are all QPSK elements.
  • the second information determines the value range of y 0 , y 1 , y 2 , and y 3 , it also determines the number of bits used to indicate y 0 , y 1 , y 2 , and y 3 in the TPMI information.
  • the terminal can The second information is used to determine the size of the TPMI information field, thereby determining the length of the DCI carrying the TPMI information.
  • the size of the TPMI information field may be determined based on the first information and/or the second information.
  • x 1 , x 2 , and x 3 are each of the BPSK elements ⁇ 1,-1 ⁇ , and y 0 , y 1 , y 2 , and y 3 are all QPSK elements
  • 1 bit is required for each Indicate x 1 , x 2 , x 3 , and each requires 2 bits to indicate y 0 , y 1 , y 2 , y 3 .
  • the TPMI information includes at least one of the following:
  • the indication information of x 1 is used to indicate: one of the BPSK elements (indicated by one bit) or one of the QPSK elements (indicated by two bits);
  • the indication information of x 2 is used to indicate: one of the BPSK elements or one of the QPSK elements;
  • the indication information of x 3 is used to indicate: one of the BPSK elements or one of the QPSK elements.
  • the TPMI information can be used to indicate the determined value of at least one of x 1 , x 2 , and x 3 , so that the terminal device can directly based on the determined value of at least one of x 1 , x 2 , and x 3 in the TPMI information, Determine the precoding matrix from the codebook.
  • the way in which the network device determines the determined value of at least one of x 1 , x 2 , and x 3 may refer to the way in which the determined value of at least one of x 1 , x 2 , and x 3 is determined in other embodiments. .
  • N when N is 8, at least some of the elements in the 1+N/2th row of elements are determined based on y 0 , and at least some of the elements in the i+N/2th row of elements are determined based on y i-1 is determined.
  • y i-1 is correspondingly expressed as y 1 , y 2 and y 3 ;
  • the TPMI information includes at least one of the following:
  • the indication information of y 0 is used to indicate: one of the BPSK elements (indicated by one bit), one of the QPSK elements (indicated by two bits), or one of the 8PSK elements. one (indicated by three bits);
  • the indication information of y 1 is used to indicate: one of the BPSK elements, one of the QPSK elements or one of the 8PSK elements;
  • the indication information of y 2 is used to indicate: one of the BPSK elements, one of the QPSK elements or one of the 8PSK elements;
  • the indication information of y 3 is used to indicate: one of the BPSK elements, one of the QPSK elements or one of the 8PSK elements .
  • the determined value of at least one of y 0 , y 1 , y 2 , and y 3 can be indicated through the TPMI information, so that the terminal device can directly determine the value of at least one of y 0 , y 1 , y 2 , and y 3 in the TPMI information.
  • a certain value of one is used to determine the precoding matrix from the codebook.
  • the way in which the network device determines the value of at least one of y 0 , y 1 , y 2 , and y 3 may refer to other embodiments for determining at least one of y 0 , y 1 , y 2 , and y 3 .
  • the way in which the value is determined may refer to other embodiments for determining at least one of y 0 , y 1 , y 2 , and y 3 . The way in which the value is determined.
  • the two elements in the fifth row are also determined based on ⁇ y 0 , y 4 ⁇ , and the two elements in the sixth row are also determined based on ⁇ y 1 , y 5 ⁇ is determined, the two elements of the 7th row are also determined based on ⁇ y 2 , y 6 ⁇ , and the two elements of the 8th row are also determined based on ⁇ y 3 , y 7 ⁇ ; wherein, the TPMI information Also includes at least one of the following:
  • the indication information of ⁇ y 0 , y 4 ⁇ is used to indicate ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ - one of j,j ⁇ (indicated by two bits);
  • the indication information of ⁇ y 1 , y 5 ⁇ is used to indicate ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ - one of j,j ⁇ ;
  • the indication information of ⁇ y 2 , y 6 ⁇ is used to indicate ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ - one of j,j ⁇ ;
  • the indication information of ⁇ y 3 , y 7 ⁇ is used to indicate ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ - one of j,j ⁇ .
  • At least one of the indication information of 7 ⁇ can be used to indicate one of ⁇ 1,-1 ⁇ and ⁇ j,-j ⁇ (indicated by one bit), or can be used to indicate ⁇ -1,1 ⁇ , ⁇ -j,j ⁇ (indicated by a bit), or can be used to indicate one of ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ -j,j ⁇ (indicated by two bit indication).
  • the TPMI information can indicate the determined value of at least one of ⁇ y 0 , y 4 ⁇ , ⁇ y 1 , y 5 ⁇ , ⁇ y 2 , y 6 ⁇ , ⁇ y 3 , y 7 ⁇ , so that the terminal
  • the device can directly obtain the code from the codebook based on the determined value of at least one of ⁇ y 0 , y 4 ⁇ , ⁇ y 1 , y 5 ⁇ , ⁇ y 2 , y 6 ⁇ , ⁇ y 3 , y 7 ⁇ in the TPMI information.
  • the way in which the network device determines the value of at least one of ⁇ y 0 , y 4 ⁇ , ⁇ y 1 , y 5 ⁇ , ⁇ y 2 , y 6 ⁇ , ⁇ y 3 , y 7 ⁇ ) may Refer to the manner of determining the determined value of at least one of ⁇ y 0 , y 4 ⁇ , ⁇ y 1 , y 5 ⁇ , ⁇ y 2 , y 6 ⁇ , ⁇ y 3 , y 7 ⁇ ) in other embodiments.
  • At least part of the elements in the i-th row and at least part of the elements in the i+N/2-th row are determined based on x i-1
  • x i-1 is correspondingly expressed as x 1 , x 2 and x 3
  • at least some of the elements in the 1+N/2 row are determined based on y 0
  • at least some of the elements in the i+N/2th row of elements are determined based on y i-1 .
  • the method further includes: the terminal device receiving codebook subset constraint information; the codebook subset constraint information is used to indicate at least one of the following:
  • the terminal device receives the codebook subset constraint information sent by the network device.
  • the codebook subset constraint information includes a first bitmap and/or a second bitmap; the first bitmap is used to indicate: the selection of at least one of x 1 , x 2 , and x 3 Value range constraints; the second bitmap is used to indicate: the value range constraints of at least one of y 0 , y 1 , y 2 , and y 3 .
  • the two elements in the fifth row are also determined based on ⁇ y 0 , y 4 ⁇ , and the two elements in the sixth row are also determined based on ⁇ y 1 , y 5 ⁇ is determined, the two elements of the 7th row are also determined based on ⁇ y 2 , y 6 ⁇ , and the two elements of the 8th row are also determined based on ⁇ y 3 , y 7 ⁇ ; wherein, the method is also include:
  • the terminal device receives the second codebook subset constraint information; the second codebook subset constraint information is used to indicate:
  • the terminal device receives the second codebook subset constraint information sent by the network device.
  • the second codebook subset constraint information includes a third bitmap; the third bitmap is used to indicate: ⁇ y 0 , y 4 ⁇ , ⁇ y 1 , y 5 ⁇ , ⁇ y The value range constraint of at least one of 2 ,y 6 ⁇ and ⁇ y 3 ,y 7 ⁇ .
  • the terminal device may receive the codebook subset constraint information configured by the network device (ie, the above-mentioned codebook subset constraint information and/or the second codebook subset constraint information), and the codebook subset The constraint information is used to indicate at least one of the following (1), (2) and (3):
  • the value range constraint of at least one of x 1 , x 2 , and x 3 can use a 4-bit bitmap to indicate which of the elements are available, for example, indicating that their values can only be 1 and -1.
  • x 1 can take a value from ⁇ 1,-1,j,-j ⁇ , and the bitmap is [1,1,0,0], and the value of x 1 can be determined to be 1 or -1, or, With the bitmap being [0,1,1,1], it can be determined that the value of x 1 is -1, j or -j.
  • the network device can use an 8-bit bitmap to indicate which of the elements are available, for example, indicating that their values can only be 1 and j.
  • the bitmap is [1,1,0,0,0,0,0]
  • you can determine the value of y 0 is 1 or -1, or, the bitmap is [1,1,1, 1,0,0,0,0], it can be determined that the value of y 0 is one of the QPSK elements.
  • the network device can use a 4-bit bitmap to indicate which of the values can only be ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ -j,j ⁇ .
  • the bitmap is [1,1,0,0] to indicate that the value range is ⁇ 1,-1 ⁇ or ⁇ j,-j ⁇ .
  • the terminal device may determine the precoding matrix available in the codebook according to the codebook subset constraint information, that is, the precoding matrix that may be indicated by the TPMI information. Further, the terminal device can determine the size of the TPMI information field based on this information, thereby determining the length of the DCI carrying the TPMI information.
  • the BPSK element includes ⁇ 1,-1 ⁇ ;
  • the QPSK elements include ⁇ 1,-1,j,-j ⁇ ;
  • the 8PSK elements include
  • the TPMI information is indicated through downlink signaling used for scheduling the PUSCH; the downlink signaling includes high layer signaling or downlink control information DCI signaling.
  • the method further includes: a terminal device receiving a rank indication RI; and the terminal device determining the number of transmission layers based on the RI.
  • the terminal device receives the rank indication RI sent by the network device.
  • the RI may be in the same signaling as the TPMI information, or the RI may be in different signaling as the TPMI information.
  • the TPMI information may include indication information including both RI and TPMI.
  • the TPMI indication information may be used to indicate the TPMI index and/or the value of at least one element in the precoding matrix.
  • the RI indication may be used to indicate Rank, and the value of Rank may be the number of transmission layers.
  • the codebook includes The plurality of determined precoding matrices; any one of x 1 , x 2 , and x 3 is one of the BPSK elements or one of the QPSK elements; any one of y 0 , y 1 , y 2 , and y 3 is the One of the BPSK elements, one of the QPSK elements, or one of the 8PSK elements.
  • x 1 , x 2 and x 3 may each be one of the BPSK elements.
  • x 1 , x 2 and x 3 may each be one of the QPSK elements.
  • part of x 1 , x 2 and x 3 may be one of BPSK elements, and another part may be one of QPSK elements. Any two values of x 1 , x 2 , and x 3 can be the same or different.
  • y 0 , y 1 , y 2 and y 3 may each be one of the BPSK elements.
  • y 0 , y 1 , y 2 and y 3 may each be one of the QPSK elements.
  • y 0 , y 1 , y 2 and y 3 may each be one of the 8PSK elements.
  • y 0 , y 1 , y 2 and y 3 may be values in at least two elements among BPSK elements, QPSK elements and 8PSK elements. Any two values among y 0 , y 1 , y 2 , and y 3 can be the same or different.
  • the codebook may include not only The determined multiple precoding matrices may also include precoding matrices determined based on other information.
  • the codebook may include Determine multiple precoding matrices.
  • ⁇ 1,y 0 ⁇ , ⁇ x 1 ,x 1 y 1 ⁇ , ⁇ x 2 ,x 2 y 2 ⁇ , ⁇ x 3 ,x 3 y 3 ⁇ can respectively correspond to a group of antenna ports.
  • y i (i is 1, 2 or 3) corresponds to the relative phase within the antenna port group, and xi corresponds to the relative phase between antenna port groups.
  • the antenna port grouping method is used to construct based on the inter-group phase and the intra-group phase.
  • the codebook can effectively match the channels of different antennas, thereby achieving coherent transmission between different antenna ports and improving the performance of uplink transmission.
  • the codebook includes The plurality of determined precoding matrices; any one of x 1 , x 2 , and x 3 is one of the BPSK elements or one of the QPSK elements; ⁇ y 0 , y 4 ⁇ , ⁇ y 1 , y 5 ⁇ , Any one of ⁇ y 2 ,y 6 ⁇ and ⁇ y 3 ,y 7 ⁇ is one of ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ -j,j ⁇ .
  • any one of x 1 , x 2 , and x 3 is one of the BPSK elements or one of the QPSK elements.
  • Any one of ⁇ y 0 ,y 4 ⁇ , ⁇ y 1 ,y 5 ⁇ , ⁇ y 2 ,y 6 ⁇ , ⁇ y 3 ,y 7 ⁇ is ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ One of -1,1 ⁇ and ⁇ -j,j ⁇ .
  • ⁇ y 0 ,y 4 ⁇ , ⁇ y 1 ,y 5 ⁇ , ⁇ y 2 ,y 6 ⁇ , ⁇ y 3 ,y 7 ⁇ can all be ⁇ 1,-1 ⁇ .
  • ⁇ y 0 ,y 4 ⁇ , ⁇ y 1 ,y 5 ⁇ , ⁇ y 2 ,y 6 ⁇ , ⁇ y 3 ,y 7 ⁇ can all be ⁇ j,-j ⁇ .
  • ⁇ y 0 ,y 4 ⁇ , ⁇ y 1 ,y 5 ⁇ , ⁇ y 2 ,y 6 ⁇ , ⁇ y 3 ,y 7 ⁇ can be obtained from ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , Take different values among ⁇ -1,1 ⁇ and ⁇ -j,j ⁇ .
  • the codebook can include not only the The determined multiple precoding matrices may also include precoding matrices determined based on other information.
  • the precoding matrix in the codebook can be
  • the codebook may include Determine multiple precoding matrices. Among them, x 1 , x 2 , and x 3 are used to determine the relative phases between antenna port groups (that is, between different groups of polarized antennas).
  • At least two of ⁇ y 0 , y 4 ⁇ , ⁇ y 1 , y 5 ⁇ , ⁇ y 2 , y 6 ⁇ , ⁇ y 3 , y 7 ⁇ have the same value range, for example, the value range They can all be one of ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ -j,j ⁇ , but the actual values can be different or the same, indicating that the two transport layers are in each group Relative phase at the antenna ports.
  • the precoding vectors on the group of antenna ports are all orthogonal (for example, [1 1] and [1 -1] are orthogonal, [1 j] and [1 -j] are orthogonal).
  • the values of y 0 and y 4 are bound, the values of y 1 and y 5 are bound, the values of y 2 and y 6 are bound, and the values of y 3 and y The value of 7 is bound, which can make the precoding vectors of the two transmission layers on each set of antenna ports orthogonal.
  • the codebook includes Any one of the determined multiple precoding matrices x 1 , x 2 , and x 3 is one of the BPSK elements or one of the QPSK elements.
  • the values of x 1 , x 2 , and x 3 can refer to the description when the number of transmission layers is 1.
  • the codebook can include not only the The determined multiple precoding matrices may also include precoding matrices determined based on other information.
  • the precoding matrix in the codebook can be
  • the codebook may include or Determine multiple precoding matrices.
  • x 1 , x 2 , and x 3 are used to determine the relative phase between antenna port groups (that is, between different groups of polarized antennas). For values, please refer to the description when the number of transmission layers is 1.
  • each antenna port is used to transmit one data stream, thus supporting the transmission of two data streams respectively.
  • one data stream can correspond to one transmission layer number
  • two data streams can correspond to two transmission layer numbers one by one.
  • Each row in these three matrices represents an antenna port.
  • the 8 antenna ports can be divided into four groups (that is, the corresponding four antenna port groups). Among them, the 1st and 5th rows in these three matrices are one group, and the 8th antenna port is one group. Lines 2 and 6 are in a group, lines 3 and 7 are in a group, and lines 4 and 8 are in a group. Each group of antenna ports corresponds to a group of polarized antennas. Among them, the 2nd to 4th rows in these three matrices are used to determine the relative phases between antenna port groups (that is, between different groups of polarized antennas), and the 5th to 8th rows in these three matrices are used to determine the antenna ports.
  • Relative phase within a group (that is, within a group of polarized antennas). For example, take the matrix For example, ⁇ x 1 , x 2 , x 3 ⁇ is used to determine the relative phase between antenna port groups (that is, between different groups of polarized antennas), ⁇ y 0 , y 1 , y 2 , y 3 ⁇ is used to determine The relative phase within an antenna port group (i.e. within a group of polarized antennas).
  • the precoding matrix coefficient in The purpose is to normalize the power of the precoding matrix, that is, in the embodiment of the present application, the power is normalized during the precoding process.
  • power normalization may not be performed in the precoding process, and power normalization may be implemented in other processes besides the precoding process. This is not limited in the embodiments of the present application.
  • the coefficients in the precoding matrix may be 1.
  • the coefficients in the precoding matrix may be k can be the number of all elements in the precoding matrix.
  • PUSCH transmission through uplink 8 antenna ports can effectively improve the efficiency of uplink transmission for terminals configured with certain special antenna arrays (such as CPE type terminals with antennas distributed on four sides). performance.
  • the precoding matrix may be similar to the above. For example, for a precoding matrix with a transmission layer number of 1, the precoding matrix is determined based on the transpose of [1x 1 to x 7 y 0 x 1 y 1 to x 7 y 7 ]. For another example, for a precoding matrix with a transmission layer number of 2, the first column of the precoding matrix is determined based on the transpose of [1 x 1 to x 7 y 0 x 1 y 1 to x 7 y 7 ].
  • the second column is determined based on the transpose of [1 x 1 to x 7 y 8 x 1 y 9 to x 7 y 15 ].
  • the first column of the precoding matrix is determined based on the transpose of [1 x 1 to x 7 0 0 0 0 0 0 0 0]
  • the second column of the precoding matrix is Determined based on the transpose of [0 0 0 0 0 0 0 0 1 x 1 to x 7 ].
  • the antenna port corresponding to one side of the terminal device can transmit one data stream, and the antenna ports corresponding to different sides are used to transmit different data streams.
  • the precoding matrix can be based on Sure.
  • the embodiment of the present application provides a method for designing a precoding matrix for uplink 8 or more antenna ports, which can divide all the antennas of the terminal equipment into four groups. Through the different possibilities of the relative phase between the groups and the phase within each group, The uplink precoding matrix is obtained by combination, and the precoding matrix used for current transmission is determined through the inter-group phase indicated by the network device in the DCI and the intra-group phase of each group.
  • the uplink precoding matrix designed based on the method of the embodiment of the present application can be used for PUSCH transmission with 8 or more uplink antenna ports. Especially for CPE type terminals with antennas distributed on four sides, it can effectively improve the performance of uplink transmission. It should be noted that the method in the embodiment of the present application is also applicable to antenna ports arranged in a horizontal arrangement, a horizontal and vertical two-dimensional arrangement, or other arrangements.
  • Figure 6 is a schematic flowchart of another communication method provided by an embodiment of the present application. As shown in Figure 6, the method includes:
  • the network device determines the first precoding matrix from the codebook; the codebook includes multiple precoding matrices.
  • the network device sends transmission precoding matrix indication TPMI information corresponding to the first precoding matrix.
  • the network device receives precoded uplink information; the precoded uplink information is determined by precoding the uplink information using the first precoding matrix.
  • each precoding matrix in the codebook includes N row elements, N is an integer greater than or equal to 2 m , m is an integer greater than or equal to 3, and the N row elements satisfy at least one of the following characteristics:
  • At least some of the elements in the i-th row of elements and at least some of the elements in the i+N/2-th row of elements are determined based on the first parameter;
  • At least some of the elements in the 1+N/2th row of elements and at least some of the elements in the i+N/2th row of elements are determined based on the second parameter;
  • the first parameter is determined based on a binary phase shift keying BPSK element or a quadrature phase shift keying QPSK element
  • the second parameter is determined based on a BPSK element or QPSK element or Eight phase shift keying 8PSK elements are determined.
  • the N row elements satisfy:
  • the i-th row element is determined based on the first parameter, and the i+N/2-th row element is determined based on the first parameter and the second parameter.
  • the N row elements satisfy:
  • At least some of the elements in the i-th row of elements and at least some of the elements in the i+N/2-th row of elements are determined based on the first parameter, and the vector corresponding to the element in the 1st row and the 1+N/th row of elements are determined based on the first parameter.
  • the vectors corresponding to the elements in the 2nd row are orthogonal, and the vectors corresponding to the elements in the i-th row are orthogonal to the vectors corresponding to the elements in the i+N/2th row.
  • each row includes two elements, and the N rows of elements satisfy:
  • All elements of the i-th row and all elements of the i+N/2-th row are determined based on the first parameter, and the elements of the 1+N/2-th row and the i+N/2-th row All elements are also individually determined based on one of the following: ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ -j,j ⁇ .
  • each row includes two elements, and the N rows of elements satisfy:
  • the first column element among the two elements in the i-th row is determined based on the first parameter
  • the second column element among the two elements in the i+N/2th row is determined based on the first parameter
  • N when N is 8, at least some of the elements in the i-th row of elements and at least some of the elements in the i+N/2-th row of elements are determined based on x i-1 ; in When the value of i is 2 to 4, x i-1 is correspondingly expressed as x 1 , x 2 and x 3 ; where,
  • the x 1 , x 2 and x 3 satisfy at least one of the following characteristics:
  • x 1 , x 2 , and x 3 are all 1;
  • Any one of x 1 , x 2 , and x 3 is one of the BPSK elements
  • any one of x 1 , x 2 , and x 3 is one of the QPSK elements
  • x 1 is 1, and either x 2 or x 3 is one of the BPSK elements or one of the QPSK elements;
  • x 2 is 1, and either x 1 or x 3 is one of the BPSK elements or one of the QPSK elements.
  • N when N is 8, at least some of the elements in the i-th row of elements and at least some of the elements in the i+N/2-th row of elements are determined based on x i-1 ; in When the value of i is 2 to 4, x i-1 is correspondingly expressed as x 1 , x 2 and x 3 ; where,
  • the method also includes:
  • the network device sends first information; the first information is used to indicate that any one of x 1 , x 2 , and x 3 is one of the BPSK elements or one of the QPSK elements; or, in x 1 When x 2 is 1, the first information is used to indicate that either x 2 or x 3 is one of the BPSK elements or one of the QPSK elements; or, when x 2 is 1, x 1 or x Any one of 3 is one of the BPSK elements or one of the QPSK elements.
  • the method further includes:
  • the network device determines the length of the TPMI information and/or the number of precoding matrices in the codebook based on the first information.
  • N when N is 8, at least some of the elements in the 1+N/2th row of elements are determined based on y 0 , and at least some of the elements in the i+N/2th row of elements are determined based on y i-1 is determined.
  • y i-1 is correspondingly expressed as y 1 , y 2 and y 3 ;
  • the method also includes:
  • the network device sends second information; the second information is used to indicate that any one of y 0 , y 1 , y 2 , and y 3 is one of the BPSK elements, one of the QPSK elements, or One of the 8PSK elements described above.
  • the method further includes:
  • the network device determines the length of the TPMI information and/or the number of precoding matrices in the codebook based on the second information.
  • N when N is 8, at least some of the elements in the i-th row of elements and at least some of the elements in the i+N/2-th row of elements are determined based on x i-1 ; in When the value of i is 2 to 4, x i-1 is correspondingly expressed as x 1 , x 2 and x 3 ; where,
  • the TPMI information includes at least one of the following:
  • the indication information of x 1 is used to indicate: one of the BPSK elements or one of the QPSK elements;
  • the indication information of x 2 is used to indicate: one of the BPSK elements or one of the QPSK elements;
  • the indication information of x 3 is used to indicate: one of the BPSK elements or one of the QPSK elements.
  • N when N is 8, at least some of the elements in the 1+N/2th row of elements are determined based on y 0 , and at least some of the elements in the i+N/2th row of elements are determined based on y i-1 is determined.
  • y i-1 is correspondingly expressed as y 1 , y 2 and y 3 ;
  • the TPMI information includes at least one of the following:
  • the indication information of y 0 is used to indicate: one of the BPSK elements, one of the QPSK elements or one of the 8PSK elements;
  • the indication information of y 1 is used to indicate: one of the BPSK elements, one of the QPSK elements or one of the 8PSK elements;
  • the indication information of y 2 is used to indicate: one of the BPSK elements, one of the QPSK elements or one of the 8PSK elements;
  • the indication information of y 3 is used to indicate: one of the BPSK elements, one of the QPSK elements or one of the 8PSK elements .
  • the two elements in the fifth row are also determined based on ⁇ y 0 , y 4 ⁇ , and the two elements in the sixth row are also determined based on ⁇ y 1 , y 5 ⁇ is determined, the two elements of the 7th row are also determined based on ⁇ y 2 , y 6 ⁇ , and the two elements of the 8th row are also determined based on ⁇ y 3 , y 7 ⁇ ;
  • the TPMI information also includes at least one of the following:
  • the indication information of ⁇ y 0 , y 4 ⁇ is used to indicate ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ - one of j,j ⁇ ;
  • the indication information of ⁇ y 1 , y 5 ⁇ is used to indicate ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ - one of j,j ⁇ ;
  • the indication information of ⁇ y 2 , y 6 ⁇ is used to indicate ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ - one of j,j ⁇ ;
  • the indication information of ⁇ y 3 , y 7 ⁇ is used to indicate ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ - one of j,j ⁇ .
  • At least part of the elements in the i-th row and at least part of the elements in the i+N/2-th row are determined based on x i-1
  • x i-1 is correspondingly expressed as x 1 , x 2 and x 3
  • at least some of the elements in the 1+N/2 row are determined based on y 0
  • at least some of the elements in the i+N/2th row of elements are determined based on y i-1
  • y i-1 is correspondingly expressed as y 1 , y 2 and y 3 ;in,
  • the method also includes:
  • the network device sends codebook subset constraint information; the codebook subset constraint information is used to indicate at least one of the following:
  • the two elements in the fifth row are also determined based on ⁇ y 0 , y 4 ⁇ , and the two elements in the sixth row are also determined based on ⁇ y 1 , y 5 ⁇ is determined, the two elements of the 7th row are also determined based on ⁇ y 2 , y 6 ⁇ , and the two elements of the 8th row are also determined based on ⁇ y 3 , y 7 ⁇ ;
  • the method also includes:
  • the network device sends the second codebook subset constraint information; the second codebook subset constraint information is used to indicate:
  • the BPSK elements include ⁇ 1,-1 ⁇ ;
  • the QPSK elements include ⁇ 1,-1,j,-j ⁇ ;
  • the 8PSK elements include
  • the TPMI information is indicated through downlink signaling used for scheduling the PUSCH; the downlink signaling includes high layer signaling or downlink control information DCI signaling.
  • the method further includes:
  • the network device sends a rank indication RI; the RI is used to determine the number of transmission layers.
  • the codebook includes The plurality of determined precoding matrices; any one of x 1 , x 2 , and x 3 is one of the BPSK elements or one of the QPSK elements; any one of y 0 , y 1 , y 2 , and y 3 is the One of the BPSK elements, one of the QPSK elements, or one of the 8PSK elements.
  • the codebook includes The plurality of determined precoding matrices; any one of x 1 , x 2 , and x 3 is one of the BPSK elements or one of the QPSK elements; ⁇ y 0 , y 4 ⁇ , ⁇ y 1 , y 5 ⁇ , Any one of ⁇ y 2 ,y 6 ⁇ and ⁇ y 3 ,y 7 ⁇ is one of ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ -j,j ⁇ .
  • the codebook includes Any one of the determined multiple precoding matrices x 1 , x 2 , and x 3 is one of the BPSK elements or one of the QPSK elements.
  • the size of the sequence numbers of the above-mentioned processes does not mean the order of execution.
  • the execution order of each process should be determined by its functions and internal logic, and should not be used in this application.
  • the implementation of the examples does not constitute any limitations.
  • the terms “downlink”, “uplink” and “sidelink” are used to indicate the transmission direction of signals or data, where “downlink” is used to indicate that the transmission direction of signals or data is from the station.
  • uplink is used to indicate that the transmission direction of the signal or data is the second direction from the user equipment of the cell to the site
  • sidelink is used to indicate that the transmission direction of the signal or data is A third direction sent from User Device 1 to User Device 2.
  • downlink signal indicates that the transmission direction of the signal is the first direction.
  • the term “and/or” is only an association relationship describing associated objects, indicating that three relationships can exist. Specifically, A and/or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.
  • Figure 7 is a schematic structural diagram of a communication device provided by an embodiment of the present application, which is applied to terminal equipment. As shown in Figure 7, the communication device 700 includes:
  • Communication unit 701 configured to receive transmission precoding matrix indication TPMI information
  • Determining unit 702 configured to determine a first precoding matrix from a codebook based on the TPMI information; the codebook includes multiple precoding matrices;
  • Precoding unit 703 configured to use the first precoding matrix to precode uplink information, and send the precoded uplink information
  • each precoding matrix in the codebook includes N row elements, N is an integer greater than or equal to 2 m , m is an integer greater than or equal to 3, and the N row elements satisfy at least one of the following characteristics:
  • At least some of the elements in the i-th row of elements and at least some of the elements in the i+N/2-th row of elements are determined based on the first parameter;
  • At least some of the elements in the 1+N/2th row of elements and at least some of the elements in the i+N/2th row of elements are determined based on the second parameter;
  • the first parameter is determined based on a binary phase shift keying BPSK element or a quadrature phase shift keying QPSK element
  • the second parameter is determined based on a BPSK element or QPSK element or Eight phase shift keying 8PSK elements are determined.
  • the first parameter is determined based on binary phase shift keying BPSK elements or quadrature phase shift keying QPSK elements
  • the second parameter is determined based on BPSK elements or QPSK elements or eight phase shift keying 8PSK elements.
  • the N row elements satisfy:
  • the i-th row element is determined based on the first parameter, and the i+N/2-th row element is determined based on the first parameter and the second parameter.
  • the N row elements satisfy:
  • At least some of the elements in the i-th row of elements and at least some of the elements in the i+N/2-th row of elements are determined based on the first parameter, and the vector corresponding to the element in the 1st row and the 1+N/th row of elements are determined based on the first parameter.
  • the vectors corresponding to the elements in the 2nd row are orthogonal, and the vectors corresponding to the elements in the i-th row are orthogonal to the vectors corresponding to the elements in the i+N/2th row.
  • each row includes two elements, and the N rows of elements satisfy:
  • All elements of the i-th row and all elements of the i+N/2-th row are determined based on the first parameter, and the elements of the 1+N/2-th row and the i+N/2-th row All elements are also individually determined based on one of the following: ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ -j,j ⁇ .
  • each row includes two elements, and the N rows of elements satisfy:
  • the first column element among the two elements in the i-th row is determined based on the first parameter
  • the second column element among the two elements in the i+N/2th row is determined based on the first parameter
  • N when N is 8, at least some of the elements in the i-th row of elements and at least some of the elements in the i+N/2-th row of elements are determined based on x i-1 ; in When the value of i is 2 to 4, x i-1 is correspondingly expressed as x 1 , x 2 and x 3 ; where,
  • the x 1 , x 2 and x 3 satisfy at least one of the following characteristics:
  • x 1 , x 2 , and x 3 are all 1;
  • Any one of x 1 , x 2 , and x 3 is one of the BPSK elements
  • any one of x 1 , x 2 , and x 3 is one of the QPSK elements
  • x 1 is 1, and either x 2 or x 3 is one of the BPSK elements or one of the QPSK elements;
  • x 2 is 1, and either x 1 or x 3 is one of the BPSK elements or one of the QPSK elements.
  • the communication unit 701 is also used to receive the first information; the first information is used to Indicate that any one of x 1 , x 2 , and x 3 is one of the BPSK elements or one of the QPSK elements; or, when x 1 is 1, the first information is used to indicate x 2 , x Any one of 3 is one of the BPSK elements or one of the QPSK elements; or, when x 2 is 1, any one of x 1 and x 3 is one of the BPSK elements or the QPSK one of the elements.
  • the determining unit 702 is further configured to determine the length of the TPMI information and/or the number of precoding matrices in the codebook based on the first information.
  • the communication unit 701 is also used to receive the second information;
  • the second information is used to indicate that any one of y 0 , y 1 , y 2 , and y 3 is one of the BPSK elements, one of the QPSK elements, or one of the 8PSK elements.
  • the determining unit 702 is further configured to determine the length of the TPMI information and/or the number of precoding matrices in the codebook based on the second information.
  • the TPMI information includes at least one of the following: indication information of x 1 , The indication information is used to indicate: one of the BPSK elements or one of the QPSK elements; the indication information of x 2 , the indication information of x 2 is used to indicate: one of the BPSK elements or the QPSK One of the elements; indication information of x 3 , the indication information of x 3 is used to indicate: one of the BPSK elements or one of the QPSK elements.
  • the TPMI information includes at least one of the following: an indication of y 0 Information, the indication information of y 0 is used to indicate: one of the BPSK elements, one of the QPSK elements or one of the 8PSK elements; the indication information of y 1 is used to indicate Indicate: one of the BPSK elements, one of the QPSK elements or one of the 8PSK elements; indication information of y 2 , the indication information of y 2 is used to indicate: one of the BPSK elements, the One of the QPSK elements or one of the 8PSK elements; indication information of y 3
  • the two elements in the fifth row are also determined based on ⁇ y 0 , y 4 ⁇ , and the two elements in the sixth row are also determined based on ⁇ y 1 , y 5 ⁇ is determined, the two elements of the 7th row are also determined based on ⁇ y 2 , y 6 ⁇ , and the two elements of the 8th row are also determined based on ⁇ y 3 , y 7 ⁇ ; wherein, the TPMI information Also includes at least one of the following:
  • the indication information of ⁇ y 0 , y 4 ⁇ is used to indicate ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ - one of j,j ⁇ ;
  • the indication information of ⁇ y 1 , y 5 ⁇ is used to indicate ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ - one of j,j ⁇ ;
  • the indication information of ⁇ y 2 , y 6 ⁇ is used to indicate ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ - one of j,j ⁇ ;
  • the indication information of ⁇ y 3 , y 7 ⁇ is used to indicate ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ - one of j,j ⁇ .
  • At least part of the elements in the i-th row and at least part of the elements in the i+N/2-th row are determined based on x i-1
  • x i-1 is correspondingly expressed as x 1 , x 2 and x 3
  • at least some of the elements in the 1+N/2 row are determined based on y 0
  • at least some of the elements in the i+N/2th row of elements are determined based on y i-1 .
  • the communication unit 701 is also used to receive codebook subset constraint information; the codebook subset constraint information is used to indicate at least one of the following:
  • the two elements in the fifth row are also determined based on ⁇ y 0 , y 4 ⁇ , and the two elements in the sixth row are also determined based on ⁇ y 1 , y 5 ⁇ is determined, the two elements of the 7th row are also determined based on ⁇ y 2 , y 6 ⁇ , and the two elements of the 8th row are also determined based on ⁇ y 3 , y 7 ⁇ ;
  • the communication unit 701 also used to receive the second codebook subset constraint information; the second codebook subset constraint information is used to indicate:
  • the BPSK elements include ⁇ 1,-1 ⁇ ;
  • the QPSK elements include ⁇ 1,-1,j,-j ⁇ ;
  • the 8PSK elements include
  • the TPMI information is indicated through downlink signaling used for scheduling PUSCH; the downlink signaling includes high layer signaling or downlink control information DCI signaling.
  • the communication unit 701 is further configured to receive a rank indication RI; the determining unit 702 is further configured to determine the number of transmission layers based on the RI.
  • the codebook includes The plurality of determined precoding matrices; any one of x 1 , x 2 , and x 3 is one of the BPSK elements or one of the QPSK elements; any one of y 0 , y 1 , y 2 , and y 3 is the One of the BPSK elements, one of the QPSK elements, or one of the 8PSK elements.
  • the codebook includes The plurality of determined precoding matrices; any one of x 1 , x 2 , and x 3 is one of the BPSK elements or one of the QPSK elements; ⁇ y 0 , y 4 ⁇ , ⁇ y 1 , y 5 ⁇ , Any one of ⁇ y 2 ,y 6 ⁇ and ⁇ y 3 ,y 7 ⁇ is one of ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ -j,j ⁇ .
  • the codebook includes Any one of the determined multiple precoding matrices x 1 , x 2 , and x 3 is one of the BPSK elements or one of the QPSK elements.
  • FIG 8 is a schematic structural composition diagram of another communication device provided by an embodiment of the present application, which is applied to terminal equipment.
  • the communication device 800 includes:
  • Determining unit 801 configured to determine a first precoding matrix from a codebook; the codebook includes multiple precoding matrices;
  • Communication unit 802 configured to send transmission precoding matrix indication TPMI information corresponding to the first precoding matrix
  • the communication unit 802 is also configured to receive precoded uplink information; the precoded uplink information is determined by precoding the uplink information using the first precoding matrix;
  • each precoding matrix in the codebook includes N row elements, N is an integer greater than or equal to 2 m , m is an integer greater than or equal to 3, and the N row elements satisfy at least one of the following characteristics:
  • At least some of the elements in the i-th row of elements and at least some of the elements in the i+N/2-th row of elements are determined based on the first parameter;
  • At least some of the elements in the 1+N/2th row of elements and at least some of the elements in the i+N/2th row of elements are determined based on the second parameter;
  • the first parameter is determined based on a binary phase shift keying BPSK element or a quadrature phase shift keying QPSK element
  • the second parameter is determined based on a BPSK element or QPSK element or Eight phase shift keying 8PSK elements are determined.
  • the N row elements satisfy:
  • the i-th row element is determined based on the first parameter, and the i+N/2-th row element is determined based on the first parameter and the second parameter.
  • the N row elements satisfy:
  • At least some of the elements in the i-th row of elements and at least some of the elements in the i+N/2-th row of elements are determined based on the first parameter, and the vector corresponding to the element in the 1st row and the 1+N/th row of elements are determined based on the first parameter.
  • the vectors corresponding to the elements in the 2nd row are orthogonal, and the vectors corresponding to the elements in the i-th row are orthogonal to the vectors corresponding to the elements in the i+N/2th row.
  • each row includes two elements, and the N rows of elements satisfy:
  • All elements of the i-th row and all elements of the i+N/2-th row are determined based on the first parameter, and the elements of the 1+N/2-th row and the i+N/2-th row All elements are also individually determined based on one of the following: ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ -j,j ⁇ .
  • each row includes two elements, and the N rows of elements satisfy:
  • the first column element among the two elements in the i-th row is determined based on the first parameter
  • the second column element among the two elements in the i+N/2th row is determined based on the first parameter
  • N when N is 8, at least some of the elements in the i-th row of elements and at least some of the elements in the i+N/2-th row of elements are determined based on x i-1 ; in When the value of i is 2 to 4, x i-1 is correspondingly expressed as x 1 , x 2 and x 3 ; wherein, the x 1 , x 2 and x 3 satisfy at least one of the following characteristics: x 1 , x The values of 2 and x 3 are all 1; any one of x 1 , x 2 , and x 3 is one of the BPSK elements; any one of x 1 , x 2 , and x 3 is one of the QPSK elements.
  • the communication unit 802 is also used to send the first information; the first information is used to Indicate that any one of x 1 , x 2 , and x 3 is one of the BPSK elements or one of the QPSK elements; or, when x 1 is 1, the first information is used to indicate x 2 , x Any one of 3 is one of the BPSK elements or one of the QPSK elements; or, when x 2 is 1, any one of x 1 and x 3 is one of the BPSK elements or the QPSK one of the elements.
  • the determining unit 801 is further configured to determine the length of the TPMI information and/or the number of precoding matrices in the codebook based on the first information.
  • the communication unit 802 is also used to send the second information;
  • the second information is used to indicate that any one of y 0 , y 1 , y 2 , and y 3 is one of the BPSK elements, one of the QPSK elements, or one of the 8PSK elements.
  • the determining unit 801 is further configured to determine the length of the TPMI information and/or the number of precoding matrices in the codebook based on the second information.
  • the TPMI information includes at least one of the following: indication information of x 1 , The indication information is used to indicate: one of the BPSK elements or one of the QPSK elements; the indication information of x 2 , the indication information of x 2 is used to indicate: one of the BPSK elements or the QPSK One of the elements; indication information of x 3 , the indication information of x 3 is used to indicate: one of the BPSK elements or one of the QPSK elements.
  • the TPMI information includes at least one of the following: an indication of y 0 Information, the indication information of y 0 is used to indicate: one of the BPSK elements, one of the QPSK elements or one of the 8PSK elements; the indication information of y 1 is used to indicate Indicate: one of the BPSK elements, one of the QPSK elements or one of the 8PSK elements; indication information of y 2 , the indication information of y 2 is used to indicate: one of the BPSK elements, the One of the QPSK elements or one of the 8PSK elements; indication information of y 3
  • the two elements in the fifth row are also determined based on ⁇ y 0 , y 4 ⁇ , and the two elements in the sixth row are also determined based on ⁇ y 1 , y 5 ⁇ is determined
  • the two elements of the 7th row are also determined based on ⁇ y 2 , y 6 ⁇
  • the two elements of the 8th row are also determined based on ⁇ y 3 , y 7 ⁇
  • the TPMI information It also includes at least one of the following: the indication information of ⁇ y 0 , y 4 ⁇ , the indication information of ⁇ y 0 , y 4 ⁇ is used to indicate ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ One of -1,1 ⁇ and ⁇ -j,j ⁇ ; the indication information of ⁇ y 1 ,y 5 ⁇ , the indication information of ⁇ y 1 ,y 5 ⁇ is used to indicate ⁇ 1,-1 ⁇ , One of ⁇ j,-j ⁇ , ⁇ -1
  • At least part of the elements in the i-th row and at least part of the elements in the i+N/2-th row are determined based on x i-1
  • x i-1 is correspondingly expressed as x 1 , x 2 and x 3
  • at least some of the elements in the 1+N/2 row are determined based on y 0
  • at least some of the elements in the i+N/2th row of elements are determined based on y i-1 .
  • the communication unit 802 is also used to send codebook subset constraint information; the codebook subset constraint information is used to indicate at least one of the following: the value of at least one of x 1 , x 2 , and x 3 Range constraints; value range constraints for at least one of y 0 , y 1 , y 2 , and y 3 .
  • the two elements in the fifth row are also determined based on ⁇ y 0 , y 4 ⁇ , and the two elements in the sixth row are also determined based on ⁇ y 1 , y 5 ⁇ is determined
  • the two elements of the 7th row are also determined based on ⁇ y 2 , y 6 ⁇
  • the two elements of the 8th row are also determined based on ⁇ y 3 , y 7 ⁇
  • the communication unit 802 also used to send the second codebook subset constraint information
  • the second codebook subset constraint information is used to indicate: ⁇ y 0 ,y 4 ⁇ , ⁇ y 1 ,y 5 ⁇ , ⁇ y 2 ,y
  • the BPSK elements include ⁇ 1,-1 ⁇ ; the QPSK elements include ⁇ 1,-1,j,-j ⁇ ; the 8PSK elements include
  • the TPMI information is indicated through downlink signaling used for scheduling the PUSCH; the downlink signaling includes high layer signaling or downlink control information DCI signaling.
  • the communication unit 802 is also configured to send a rank indication RI; the RI is used to determine the number of transmission layers.
  • the codebook includes The plurality of determined precoding matrices; any one of x 1 , x 2 , and x 3 is one of the BPSK elements or one of the QPSK elements; any one of y 0 , y 1 , y 2 , and y 3 is the One of the BPSK elements, one of the QPSK elements, or one of the 8PSK elements.
  • the codebook includes The plurality of determined precoding matrices; any one of x 1 , x 2 , and x 3 is one of the BPSK elements or one of the QPSK elements; ⁇ y 0 , y 4 ⁇ , ⁇ y 1 , y 5 ⁇ , Any one of ⁇ y 2 ,y 6 ⁇ and ⁇ y 3 ,y 7 ⁇ is one of ⁇ 1,-1 ⁇ , ⁇ j,-j ⁇ , ⁇ -1,1 ⁇ , ⁇ -j,j ⁇ .
  • the codebook includes Any one of the determined multiple precoding matrices x 1 , x 2 , and x 3 is one of the BPSK elements or one of the QPSK elements.
  • FIG 9 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the communication device 900 may be a terminal device or a network device.
  • the communication device 900 shown in Figure 9 may include a processor 910 and a memory 920.
  • the memory 920 stores a computer program that can be run on the processor 910.
  • the processor 910 executes the program, any of the above embodiments can be implemented. communication methods.
  • the memory 920 may be a separate device independent of the processor 910 , or may be integrated into the processor 910 .
  • the communication device 900 may also include a transceiver 930, and the processor 910 may control the transceiver 930 to communicate with other devices, specifically, may send information or data to other devices, or Receive information or data from other devices.
  • transceiver 930 may include a transmitter and a receiver.
  • the transceiver 930 may further include an antenna, and the number of antennas may be one or more.
  • the communication device 900 may be a network device or a terminal device according to the embodiment of the present application, and the communication device 900 may implement the corresponding processes implemented by the network device or the terminal device in each method of the embodiment of the present application. For the sake of brevity, no further details will be given here.
  • Embodiments of the present application also provide a computer storage medium that stores one or more programs, and the one or more programs can be executed by one or more processors to implement any implementation of the present application. Communication method in the example.
  • the computer-readable storage medium can be applied to the terminal device or network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the network device in each method of the embodiment of the present application, For the sake of brevity, no further details will be given here.
  • FIG. 10 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 1000 shown in Figure 10 includes a processor 1010.
  • the processor 1010 is used to call and run a computer program from the memory, so that the device installed with the chip executes the method in the embodiment of the present application.
  • chip 1000 may also include memory 1020 .
  • the processor 1010 can call and run the computer program from the memory 1020 to implement the method in the embodiment of the present application.
  • the memory 1020 may be a separate device independent of the processor 1010, or may be integrated into the processor 1010.
  • the chip 1000 may also include an input interface 1030.
  • the processor 1010 can control the input interface 1030 to communicate with other devices or chips. Specifically, it can obtain information or data sent by other devices or chips.
  • the chip 1000 may also include an output interface 1040.
  • the processor 1010 can control the output interface 1040 to communicate with other devices or chips. Specifically, it can output information or data to other devices or chips.
  • the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in the various methods of the embodiment of the present application. For the sake of brevity, the details will not be described again.
  • the chip can be applied to the terminal device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the terminal device in the various methods of the embodiment of the present application.
  • the chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.
  • Embodiments of the present application also provide a computer program product.
  • the computer program product includes a computer storage medium.
  • the computer storage medium stores a computer program.
  • the computer program includes instructions that can be executed by at least one processor. When the When the instructions are executed by the at least one processor, the communication method in any embodiment of the present application is implemented.
  • the computer program product can be applied to the terminal device or network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in each method of the embodiment of the present application, in order to It’s concise and I won’t go into details here.
  • the computer program product in the embodiment of this application may also be called a software product in other embodiments.
  • An embodiment of the present application also provides a computer program, which causes a computer to execute the communication method in any embodiment of the present application.
  • the computer program can be applied to the terminal device or network device in the embodiments of the present application.
  • the computer program When the computer program is run on the computer, it causes the computer to execute the methods implemented by the network device in the various methods of the embodiments of the present application. The corresponding process will not be repeated here for the sake of brevity.
  • the processor, communication device or chip in the embodiment of the present application may be an integrated circuit chip and has signal processing capabilities. During the implementation process, each step of the above method embodiment can be completed through an integrated logic circuit of hardware in the processor or instructions in the form of software.
  • the above-mentioned processor, communication device or chip may include the integration of any one or more of the following: general-purpose processor, application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), digital signal processor (Digital Signal Processor, DSP), digital Digital Signal Processing Device (DSPD), Programmable Logic Device (PLD), Field Programmable Gate Array (FPGA), Central Processing Unit (CPU), graphics Processor (Graphics Processing Unit, GPU), embedded neural network processing units (NPU), controller, microcontroller, microprocessor, programmable logic device, discrete gate or transistor logic device, discrete Hardware components.
  • ASIC Application Specific Integrated Circuit
  • DSP digital Signal Processor
  • DSPD digital Digital Signal Processing Device
  • PLD Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
  • the steps of the method disclosed in conjunction with the embodiments of the present application can be directly implemented by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other mature storage media in this field.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • non-volatile memory may be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory. Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which is used as an external cache.
  • RAM Random Access Memory
  • RAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • Synchlink DRAM SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application can also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM) , DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM) ), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is, memories in embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code. .

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Abstract

本申请实施例提供一种通信方法、装置、设备、存储介质、芯片、产品及程序,该方法包括:终端设备接收传输预编码矩阵指示TPMI信息(S501);终端设备基于TPMI信息,从码本中确定第一预编码矩阵;码本包括多个预编码矩阵(S502);终端设备采用第一预编码矩阵对上行信息进行预编码,并发送预编码后的上行信息(S503);其中,码本中的每个预编码矩阵包括N行元素,N为大于等于2m的整数,m为大于等于3的整数,N行元素满足以下至少一种特征:第i行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第一参数确定;第1+N/2行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第二参数确定。

Description

通信方法、装置、设备、存储介质、芯片、产品及程序 技术领域
本申请实施例涉及移动通信技术领域,具体涉及一种通信方法、装置、设备、存储介质、芯片、产品及程序。
背景技术
多输入多输出(Multiple-Input Multiple-Output,MIMO)技术利用多天线并行发送多路数据,从而获得额外的空间复用增益。为了更好地利用复杂的信道空间特性,一般要对发射数据流进行预编码,以提高信号传输质量。其中,用于进行预编码的预编码矩阵可以在码本中获得。
目前,上行码本设计方案是本领域一直以来关注的问题。
发明内容
本申请实施例提供一种通信方法、装置、设备、存储介质、芯片、产品及程序。
第一方面,本申请实施例提供一种通信方法,所述方法包括:
终端设备接收传输预编码矩阵指示TPMI信息;
所述终端设备基于所述TPMI信息,从码本中确定第一预编码矩阵;所述码本包括多个预编码矩阵;
所述终端设备采用所述第一预编码矩阵对上行信息进行预编码,并发送预编码后的上行信息;
其中,所述码本中的每个预编码矩阵包括N行元素,N为大于等于2 m的整数,m为大于等于3的整数,所述N行元素满足以下至少一种特征:
第i行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第一参数确定;
第1+N/2行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第二参数确定;
i为大于等于2且小于等于N/2的整数,所述第一参数基于二进制相移键控BPSK元素或者正交相移键控QPSK元素确定,所述第二参数基于BPSK元素或者QPSK元素或者八相移键控8PSK元素确定。
第二方面,本申请实施例提供一种通信方法,所述方法包括:
网络设备从码本中确定第一预编码矩阵;所述码本包括多个预编码矩阵;
所述网络设备发送与所述第一预编码矩阵对应的传输预编码矩阵指示TPMI信息;
所述网络设备接收预编码后的上行信息;所述预编码后的上行信息是采用所述第一预编码矩阵对上行信息进行预编码确定的;
其中,所述码本中的每个预编码矩阵包括N行元素,N为大于等于2 m的整数,m为大于等于3的整数,所述N行元素满足以下至少一种特征:
第i行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第一参数确定;
第1+N/2行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第二参数确定;
i为大于等于2且小于等于N/2的整数,所述第一参数基于二进制相移键控BPSK元素或者正交相移键控QPSK元素确定,所述第二参数基于BPSK元素或者QPSK元素或者八相移键控8PSK元素确定。
第三方面,本申请实施例提供一种通信装置,所述通信装置包括:
通信单元,用于接收传输预编码矩阵指示TPMI信息;
确定单元,用于基于所述TPMI信息,从码本中确定第一预编码矩阵;所述码本包括多个预编码矩阵;
预编码单元,用于采用所述第一预编码矩阵对上行信息进行预编码,并发送预编码后的上行信息;
其中,所述码本中的每个预编码矩阵包括N行元素,N为大于等于2 m的整数,m为大于等于3 的整数,所述N行元素满足以下至少一种特征:
第i行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第一参数确定;
第1+N/2行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第二参数确定;
i为大于等于2且小于等于N/2的整数,所述第一参数基于二进制相移键控BPSK元素或者正交相移键控QPSK元素确定,所述第二参数基于BPSK元素或者QPSK元素或者八相移键控8PSK元素确定。
第四方面,本申请实施例提供一种通信装置,所述通信装置包括:
确定单元,用于从码本中确定第一预编码矩阵;所述码本包括多个预编码矩阵;
通信单元,用于发送与所述第一预编码矩阵对应的传输预编码矩阵指示TPMI信息;
所述通信单元,还用于接收预编码后的上行信息;所述预编码后的上行信息是采用所述第一预编码矩阵对上行信息进行预编码确定的;
其中,所述码本中的每个预编码矩阵包括N行元素,N为大于等于2 m的整数,m为大于等于3的整数,所述N行元素满足以下至少一种特征:
第i行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第一参数确定;
第1+N/2行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第二参数确定;
i为大于等于2且小于等于N/2的整数,所述第一参数基于二进制相移键控BPSK元素或者正交相移键控QPSK元素确定,所述第二参数基于BPSK元素或者QPSK元素或者八相移键控8PSK元素确定。
第五方面,本申请实施例提供一种终端设备,包括:处理器和存储器,所述存储器存储有可在处理器上运行的计算机程序,所述处理器执行所述程序时实现上述方法。
第六方面,本申请实施例提供一种网络设备,包括:处理器和存储器,所述存储器存储有可在处理器上运行的计算机程序,所述处理器执行所述程序时实现上述方法。
第七方面,本申请实施例提供一种计算机存储介质,所述计算机存储介质存储有一个或者多个程序,所述一个或者多个程序可被一个或者多个处理器执行,以实现上述方法。
第八方面,本申请实施例提供一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行上述方法。
第九方面,本申请实施例提供一种计算机程序产品,所述计算机程序产品包括计算机存储介质,所述计算机存储介质存储计算机程序,所述计算机程序包括能够由至少一个处理器执行的指令,当所述指令由所述至少一个处理器执行时实现上述方法。
第十方面,本申请实施例提供一种计算机程序,所述计算机程序使得计算机执行上述方法。
在本申请实施例中,码本中的每个预编码矩阵包括N行元素,N为大于等于2 m的整数,m为大于等于3的整数,N行元素满足以下至少一种特征:第i行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第一参数确定;第1+N/2行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第二参数确定。这样,本申请实施例通过提供一种上行8或者8以上的天线端口在传输时的码本,能够提高上行传输的性能。
附图说明
此处所说明的附图用来提供对本申请的进一步理解,构成本申请的一部分,本申请的示意性实施例及其说明用于解释本申请,并不构成对本申请的不当限定。在附图中:
图1为本申请实施例的一个应用场景的示意图;
图2为相关技术中基于码本的PUSCH传输的方法示意图;
图3a为本申请实施例提供的一种L=4支持的波束组的图样的示意图;
图3b为本申请实施例提供的另一种L=4支持的波束组的图样的示意图;
图4a为本申请实施例提供的一种8天线端口水平排列的示意图;
图4b为本申请实施例提供的一种8天线端口水平垂直二维排列的示意图;
图4c为本申请实施例提供的一种8天线端口四边排列的示意图;
图5为本申请实施例提供的一种通信方法的流程示意图;
图6为本申请实施例提供的另一种通信方法的流程示意图;
图7为本申请实施例提供的通信装置的结构组成示意图;
图8为本申请实施例提供的另一通信装置的结构组成示意图;
图9是本申请实施例提供的一种通信设备示意性结构图;
图10是本申请实施例的芯片的示意性结构图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请实施例所记载的技术方案之间,在不冲突的情况下,可以任意组合。在本申请的描述中,“多个”的含义是两个或两个以上,除非另有明确具体的限定。
图1为本申请实施例的一个应用场景的示意图。
如图1所示,通信系统100可以包括终端设备110和网络设备120。网络设备120可以通过空口与终端设备110通信。终端设备110和网络设备120之间支持多业务传输。
应理解,本申请实施例仅以通信系统100进行示例性说明,但本申请实施例不限定于此。也就是说,本申请实施例的技术方案可以应用于各种通信系统,例如:长期演进(Long Term Evolution,LTE)系统、LTE时分双工(Time Division Duplex,TDD)、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、物联网(Internet of Things,IoT)系统、窄带物联网(Narrow Band Internet of Things,NB-IoT)系统、增强的机器类型通信(enhanced Machine-Type Communications,eMTC)系统、5G通信系统(也称为新无线(New Radio,NR)通信系统),或未来的通信系统(例如6G、7G通信系统)等。
在图1所示的通信系统100中,网络设备120可以是与终端设备110通信的接入网设备。接入网设备可以为特定的地理区域提供通信覆盖,并且可以与位于该覆盖区域内的终端设备110(例如UE)进行通信。
本申请中的终端设备110可以称为用户设备(User Equipment,UE)、移动台(Mobile Station,MS)、移动终端(Mobile Terminal,MT)、用户单元、用户站、移动站、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端设备110可以包括以下之一或者至少两者的组合:个人数字助理(Personal Digital Assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、服务器、手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、掌上电脑、台式计算机、个人数字助理、便捷式媒体播放器、智能音箱、导航装置、智能手表、智能眼镜、智能项链等可穿戴设备、计步器、数字TV、虚拟现实(Virtual Reality,VR)终端设备、增强现实(Augmented Reality,AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端以及车联网系统中的车、车载设备、车载模块、无线调制解调器(modem)、手持设备(handheld)、客户终端设备(Customer Premise Equipment,CPE)、智能家电。
本申请实施例中的网络设备120可以包括接入网设备121和/或核心网设备122。
接入网设备121可以包括以下之一或者至少两者的组合:长期演进(Long Term Evolution,LTE)系统中的演进型基站(Evolutional Node B,eNB或eNodeB)、下一代无线接入网(Next Generation Radio Access Network,NG RAN)设备、NR系统中的基站(gNB)、小站、微站、云无线接入网络(Cloud Radio Access Network,CRAN)中的无线控制器、无线保真(Wireless-Fidelity,Wi-Fi)的接入点、传输接收点(transmission reception point,TRP)、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)中的网络设备等。
核心网设备122可以是5G核心网(5G Core,5GC)设备,核心网设备122可以包括以下之一或者至少两者的组合:接入与移动性管理功能(Access and Mobility Management Function,AMF)、认证服务器功能(Authentication Server Function,AUSF)、用户面功能(User Plane Function,UPF)、会话管理功能(Session Management Function,SMF)、位置管理功能(Location Management Function,LMF)、策略控制功能(Policy Control Function,PCF)。在另一些实施方式中,核心网络设备也可以是LTE网络的分组核心演进(Evolved Packet Core,EPC)设备,例如,会话管理功能+核心网络的数据网关(Session Management Function+Core Packet Gateway,SMF+PGW-C)设备。应理解, SMF+PGW-C可以同时实现SMF和PGW-C所能实现的功能。在网络演进过程中,上述核心网设备122也有可能叫其它名字,或者通过对核心网的功能进行划分形成新的网络实体,对此本申请实施例不做限制。
通信系统100中的各个功能单元之间还可以通过下一代网络(next generation,NG)接口建立连接实现通信。
例如,终端设备通过NR接口与接入网设备建立空口连接,用于传输用户面数据和控制面信令;终端设备可以通过NG接口1(简称N1)与AMF建立控制面信令连接;接入网设备例如下一代无线接入基站(gNB),可以通过NG接口3(简称N3)与UPF建立用户面数据连接;接入网设备可以通过NG接口2(简称N2)与AMF建立控制面信令连接;UPF可以通过NG接口4(简称N4)与SMF建立控制面信令连接;UPF可以通过NG接口6(简称N6)与数据网络交互用户面数据;AMF可以通过NG接口11(简称N11)与SMF建立控制面信令连接;SMF可以通过NG接口7(简称N7)与PCF建立控制面信令连接。
图1示例性地示出了一个基站、一个核心网设备和两个终端设备,可选地,该无线通信系统100可以包括多个基站设备并且每个基站的覆盖范围内可以包括其它数量的终端设备,本申请实施例对此不做限定。
需要说明的是,图1只是以示例的形式示意本申请所适用的系统,当然,本申请实施例所示的方法还可以适用于其它系统。此外,本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。还应理解,在本申请的实施例中提到的“指示”可以是直接指示,也可以是间接指示,还可以是表示具有关联关系。举例说明,A指示B,可以表示A直接指示B,例如B可以通过A获取;也可以表示A间接指示B,例如A指示C,B可以通过C获取;还可以表示A和B之间具有关联关系。还应理解,在本申请的实施例中提到的“对应”可表示两者之间具有直接对应或间接对应的关系,也可以表示两者之间具有关联关系,也可以是指示与被指示、配置与被配置等关系。还应理解,在本申请的实施例中提到的“预定义”、“协议约定”、“预先确定”或“预定义规则”可以通过在设备(例如,包括终端设备和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现,本申请对于其具体的实现方式不做限定。比如预定义可以是指协议中定义的。还应理解,本申请实施例中,所述"协议"可以指通信领域的标准协议,例如可以包括LTE协议、NR协议以及应用于未来的通信系统中的相关协议,本申请对此不做限定。
为便于理解本申请实施例的技术方案,以下对本申请实施例的相关技术进行说明,以下相关技术作为可选方案与本申请实施例的技术方案可以进行任意结合,其均属于本申请实施例的保护范围。
终端设备发送上行信息时,需要对上行信息进行预编码处理,以获得上行预编码增益。可选地,上行信息可以包括物理上行共享信道(Physical Uplink Shared Channel,PUSCH),或者,上行信息可以包括在PUSCH上发送的数据。可选地,预编码处理可以包括两个部分:模拟域处理和数字域处理。模拟域处理针对发送的模拟信号,可以采用波束赋形的方式把射频信号映射到物理天线上。数字域处理针对数字信号,一般在基带进行,采用预编码矩阵对数字信号进行预编码,将传输层的数据映射到射频端口上。由于终端设备的射频通道数量有限,因此可以采用模拟域处理和数字域处理这两种处理方式,即对数字信号进行预编码,再对模拟信号采用波束进行赋形。PUSCH传输根据预编码方式的不同分为基于码本的传输和基于非码本的传输。
图2为相关技术中基于码本的PUSCH传输的方法示意图,如图2所示,图2的方法可以对应上行基于码本的预编码方式,该方法包括:
S201、终端设备在探测参考信号(Sounding Reference Signal,SRS)资源集合中的多个SRS资源上发送SRS。
可选地,在S201之前,网络设备可以向终端设备配置SRS资源集合;该SRS资源集合可以用于码本传输。
可选地,不同SRS资源上的SRS可以对应不同的波束。
可选地,在S201之后,可以执行S202。
S202、网络设备向终端设备指示以下至少之一:SRS资源指示(SRS Resource Indicator,SRI)、秩指示(Rank Indicator,RI)、传输预编码矩阵指示(Transmit Precoding Matrix Indicator,TPMI)、调制与编码策略(Modulation and Coding Scheme,MCS)。
可选地,传输预编码矩阵指示在另一些实施例中也可以称为发送预编码矩阵指示。
可选地,网络设备可以从多个SRS资源中选择目标SRS资源,将目标SRS资源索引通过SRI向终端设备指示。可选地,网络设备可以基于目标SRS资源用于获得上行信道状态信息(Channel State Information,CSI)。可选地,终端设备可以采用SRI指示的SRS资源相应的波束对数据进行模拟波束赋形。
可选地,网络设备可以基于以下至少之一,从多个SRS资源中选择目标SRS资源:接收信号强度指示(Received Signal Strength Indication,RSSI)、参考信号接收功率(Reference Signal Received Power,RSRP)、参考信号接收质量(Reference Signal Received Quality,RSRQ)、信号与干扰加噪声比(Signal to Interference Noise Ratio,SINR)。
可选地,网络设备可以通过DCI向终端设备指示:RI和/或TPMI。
可选地,网络设备可以向终端设备指示MCS。
可选地,SRI、RI、TPMI、MCS中的至少两个,可以在一个信令中或者多个信令中。例如,SRI、RI、TPMI、MCS中的至少一个可以在高层信令或者DCI信令中。
S203、终端设备向网络设备发送预编码后的数据,或者,预编码后的数据和解调参考信号。
可选地,终端设备可以根据RI和TPMI从码本中确定与RI和TPMI对应的上行的预编码矩阵。例如,在一些实施例中,终端设备可以根据与RI和TPMI对应的上行的预编码矩阵,对数据进行预编码,并根据指示的调制与编码策略,再进行调制和编码,然后根据SRI指示的SRS资源相应的波束对数据进行模拟波束赋形,从而向网络设备发送数据。
在上行码本设计中,上行支持2端口和4端口的PUSCH的传输。以下说明在不同天线端口数以及不同传输层的情况下(如果传输层为单层时还区分不同的多址方式)所使用的码本如下:
表1为2天线端口,1层传输对应的码本示意图:
表1
Figure PCTCN2022079786-appb-000001
表2为与4天线端口,1层传输以及离散傅里叶变换-扩展-正交频分复用(Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing,DFT-S-OFDM)对应的码本示意图:
表2
Figure PCTCN2022079786-appb-000002
表3为与4天线端口,1层传输以及循环前缀-正交频分复用(Cyclic Prefix-Orthogonal Frequency Division Multiplexing,CP-OFDM)对应的码本示意图:
表3
Figure PCTCN2022079786-appb-000003
Figure PCTCN2022079786-appb-000004
表4为与2天线端口,2层传输以及DFT-S-OFDM对应的码本示意图:
表4
Figure PCTCN2022079786-appb-000005
表5为与4天线端口,2层传输以及CP-OFDM对应的码本示意图:
表5
Figure PCTCN2022079786-appb-000006
Figure PCTCN2022079786-appb-000007
表6为与4天线端口,3层传输以及CP-OFDM对应的码本示意图:
表6
Figure PCTCN2022079786-appb-000008
表7为与4天线端口,4层传输以及CP-OFDM对应的码本示意图:
表7
Figure PCTCN2022079786-appb-000009
可选地,码字可以理解为预编码矩阵。在下行码本设计中,NR的下行Type I码本中支持大于4端口的码本。其中,码本中的每个码字可以用如下公式表示:W=W 1W 2,其中
Figure PCTCN2022079786-appb-000010
B=[b 0,b 1,...,b L-1]对应L个过采样的离散傅里叶变换(Discrete Fourier Transform,DFT)波束(可以是水平垂直二维波束),W 2对应两个极化方向之间的相位。
在一些实施例中,在秩(Rank)=1或2时,支持L=1和L=4由网络设备配置的方式。L=1时W 2只反馈两个极化方向之间的相位,L=4时W 2用于从W 1对应的波束组(DFT向量组)中选择一个波束并反馈极化方向间相位。在Rank=3或4时,只支持L=1。
图3a为本申请实施例提供的一种L=4支持的波束组的图样的示意图,如图3a所示,图3a对应的两个波束组分别都是水平端口的波束组。图3b为本申请实施例提供的另一种L=4支持的波束组的图样的示意图,如图3b所示,图3b对应的两个波束组分别都是二维端口的波束组。图3a和图3b中,相邻两个竖直方向的波束之间的距离为d 1,相邻两个水平方向的波束之间的距离为d 2。可选地,d 1与d 2可以相同,或者,d 1与d 2可以不同。
在图3a和图3b中,两个波束组可以为波束组1和波束组2,波束组1用白色表示,波束组2用灰色表示。
另外,在NR中还引入了针对Type I码本的码本子集约束(Codebook Subset Restriction,CSR),可以针对每个DFT波束和每个Rank分别做码本子集约束。所述码本子集约束由网络设备配置,终端设备在进行CSI上报时,不能上报采用所约束的波束对应的PMI预编码的CSI,或者不能上报采用某个Rank下被约束的PMI预编码的CSI,但是CSI的大小可以不受码本子集约束的影响。例如,如果一个PMI被约束不能上报,则终端设备将不再上报采用该PMI预编码的CSI。
然而,在相关技术中,对于上行信息的传输,支持2天线端口和4天线端口的码本。但是对于 CPE、AR设备等类型的终端设备通常有8个甚至更多天线,以支持更高的传输速率。为了支持这类终端设备的上行码本传输,需要引入8(或多于8)天线端口的码本。
图4a为本申请实施例提供的一种8天线端口水平排列的示意图,如图4a所示,8天线端口对应四个天线端口组,四个天线端口组水平排列。
图4b为本申请实施例提供的一种8天线端口水平垂直二维排列的示意图,如图4b所示,8天线端口对应四个天线端口组,四个天线端口组水平垂直二维排列。
图4c为本申请实施例提供的一种8天线端口四边排列的示意图,如图4c所示,8天线端口对应四个天线端口组,四个天线端口组四边排列。在8天线端口四边排列的情况下,8天线端口对应的天线可以分别设置在电子设备的四面或者四角。
图4a至图4c中的数字为天线端口索引,天线端口0和天线端口4为一个天线端口组,天线端口1和天线端口5为一个天线端口组,天线端口2和天线端口6为一个天线端口组,天线端口3和天线端口7为一个天线端口组。
在相关技术中,对于下行8/16/32端口的码本设计中,可以通过不同波束对应的DFT向量以及两个极化方向之间的相位差这两个参数的不同组合,得到每个传输层的预编码向量,这些组合就组成了相应端口的码本。但是,这种码本设计方式主要基于水平排列或者水平垂直二维排列的天线阵列进行设计,没有考虑一些特殊的天线阵列,比如CPE类型终端设备的四面天线排列方式,会影响上行传输的性能。针对这些特殊的天线排列方式,可以考虑进行针对性的码本设计,从而提高这些类型终端设备的传输性能。
为便于理解本申请实施例的技术方案,以下通过具体实施例详述本申请的技术方案。以上相关技术作为可选方案与本申请实施例的技术方案可以进行任意结合,其均属于本申请实施例的保护范围。本申请实施例包括以下内容中的至少部分内容。
图5为本申请实施例提供的一种通信方法的流程示意图,如图5所示,该方法包括:
S501、终端设备接收传输预编码矩阵指示TPMI信息。
可选地,终端设备接收网络设备发送的传输预编码矩阵指示TPMI信息。
可选地,TPMI信息可以通过TPMI信息指示域来承载。可选地,TPMI信息可以通过下行信令指示,下行信令可以用于调度PUSCH。
可选地,TPMI信息可以用于指示TPMI索引。例如,在码本中的预编码矩阵数量为M的情况下,TPMI索引可以在索引范围0至M-1中选择。例如,TPMI信息可以用于指示一个TPMI索引,以使终端设备可以基于一个TPMI索引,从码本中确定与该一个TPMI索引对应的第一预编码矩阵。又例如,TPMI信息可以用于指示多个TPMI索引,以使终端设备可以从多个TPMI索引中确定一个TPMI索引,进而从码本中确定与该一个TPMI索引对应的第一预编码矩阵,或者,以使终端设备可以确定与多个TPMI索引一一对应的多个预编码矩阵,从多个预编码矩阵中选择第一预编码矩阵。
可选地,TPMI信息可以用于指示预编码矩阵的行数和/或列数。这样,终端设备可以基于TPMI信息指示的预编码矩阵的行数和/或列数,确定与TPMI信息指示的预编码矩阵的行数和/或列数对应的第一预编码矩阵。
可选地,TPMI信息可以用于指示预编码矩阵中至少一个元素的取值。这样,终端设备可以基于预编码矩阵中至少一个元素的取值,从码本中确定与预编码矩阵中至少一个元素的取值对应的第一预编码矩阵。例如,TPMI信息可以用于指示预编码矩阵中全部未定义元素的取值,这样,终端设备可以基于预编码矩阵中全部未定义元素的取值,确定第一预编码矩阵。可选地,未定义元素的取值可以是协议中没有定义的元素的取值。又例如,TPMI信息可以用于指示预编码矩阵中部分未定义元素的取值,这样,终端设备可以基于预编码矩阵中部分未定义元素的取值,从码本中确定第一预编码矩阵。示例性地,终端设备可以从码本中确定与预编码矩阵中部分未定义元素的取值相同的一个或多个预编码矩阵,并从该一个或多个预编码矩阵中确定第一预编码矩阵。
可选地,TPMI信息可以用于指示预编码矩阵中至少一行元素的取值。例如,在N为8的情况下,TPMI信息可以用于指示预编码矩阵中第一行至第八行中至少一行元素的取值。在一些实施例中,TPMI信息可以用于指示一行元素中的所有元素的值。例如,TPMI信息可以用于指示一行元素中第一个元素为1和第二个元素为0。在另一些实施例中,TPMI信息可以用于指示一行元素中的部分元素的值。例如,TPMI信息可以用于指示一行元素中第一个元素为1,终端设备可以根据自身配置信息或协议设定确定该行的第二个元素为配置的值,例如0或者1等。可选的,TPMI信息没有指示的一行或多行元素的取值,可以为协议中设定的值。
可选的,TPMI信息可以用于指示预编码矩阵中至少一列元素的取值。例如,在列数为2的情况 下,TPMI信息可以用于指示预编码矩阵中第一列和/或第二列中元素的取值。在一些实施例中,TPMI信息可以用于指示一列元素中的所有元素的值。例如,TPMI信息可以用于指示一列元素中的第一个值为1、第二个元素为0、第三个元素至最后一个元素的值均为1。在另一些实施例中,TPMI信息可以用于指示一列元素中的部分元素的值。例如,TPMI信息可以用于指示一列元素中的第一个值为1、第四个元素至最后一个元素的值均为1,终端设备可以根据自身配置信息或协议设定确定该列的第二个元素为配置的值,例如0或者1等,第三个元素为配置的值,例如0或者1等。可选的,TPMI信息没有指示的一列或多列元素的取值,可以为协议中设定的值。
S502、所述终端设备基于所述TPMI信息,从码本中确定第一预编码矩阵;所述码本包括多个预编码矩阵。
可选地,码本中包括的预编码矩阵可以称为码字,一个码字可以为一个预编码矩阵。
可选地,码本可以为8天线端口对应的码本。在另一些实施例中,码本可以包括8天线端口和其它数量天线端口(例如16天线端口或32天线端口)对应的码本。
可选的,终端设备可以基于所述TPMI信息,从码本中包括的多个预编码矩阵中确定第一预编码矩阵。这样,终端设备确定的第一预编码矩阵可以是与指示的TPMI信息对应的。
可选地,码本可以为协议预先约定的码本。可选地,终端设备端和网络设备端可以维护相同的码本。可选地,码本可以存储在终端设备中。例如,码本可以存储在的终端设备的基带芯片中。又例如,码本可以存储在基带芯片之外的其它部件中,例如,主处理芯片。
在一些实施例中,一个码本可以对应以下至少之一:预设数量的天线端口、预设传输层数、预设的上行多址方式。可选地,不同数量的天线端口对应的码本可以不同。可选地,不同传输层数对应的码本可以不同。可选地,不同上行多址方式(也可以称为上行多址接入方式)对应的码本可以不同。例如,DFT-S-OFDM和CP-OFDM为不同上行多址方式。可选地,码本对应的上行多址方式可以包括DFT-S-OFDM或CP-OFDM。在另一些实施例中,一个码本中对应多个数量的天线端口和/或多个传输层数和/或多个上行多址方式。
可选地,终端设备可以基于天线端口数量、传输层数、上行多址方式中的至少一个,确定码本。可选地,天线端口数量、传输层数、上行多址方式中的一个或多个,可以是终端设备基于自身的配置信息确定的。可选地,天线端口数量、传输层数、上行多址方式中的一个或多个,可以是终端设备基于接收到的网络设备的指示信息确定的。可选地,从码本中确定第一预编码矩阵可以包括:从码本中包括的多个预编码矩阵中确定第一预编码矩阵。
S503、所述终端设备采用所述第一预编码矩阵对上行信息进行预编码,并发送预编码后的上行信息。
可选地,上行信息可以包括上行数据信息和/或上行控制信息。
可选地,上行信息可以包括PUSCH或PUSCH对应的数据。这样,所述终端设备采用所述第一预编码矩阵对PUSCH或PUSCH对应的数据进行预编码,并发送预编码后的PUSCH或预编码后的PUSCH对应的数据。
可选地,终端设备还可以采用第一预编码矩阵对上行控制信息进行预编码,并发送预编码后的上行控制信息。例如,上行控制信息可以包括物理上行控制信道(Physical Uplink Control Channel,PUCCH)或上行控制信息(Uplink Control Information,UCI)。
可选地,终端设备可以将预编码后的上行信息向网络设备发送。
可选地,终端设备在获得预编码后的上行信息情况下,还可以采用MCS对预编码后的信息进行调制和编码,并发送调制和编码后的信息。可选地,MCS可以是网络设备向终端设备发送的,或者,MCS可以是终端设备根据自身的配置信息确定的。在这种情况下,终端设备可以在获得预编码后的上行信息之后,可以将预编码后的上行信息发送至调制和编码模块,以使调制和编码模块对预编码后的信息进行调制和编码。
本申请实施例中,终端设备的天线端口数量可以为8。在其它实施例中,终端设备的天线端口数量可以为其它大于8的数量,例如,16或32等等。终端设备的天线端口数量可以是终端设备预先配置的,或者,终端设备的天线端口数量可以是网络设备向终端设备指示的可用天线端口数量。
在一些实施例中,所述码本中的每个预编码矩阵包括N行元素,N为大于等于2 m的整数,m为大于等于3的整数,所述N行元素满足以下至少一种特征:
第i行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第一参数确定;
第1+N/2行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第二参数确定;
i为大于等于2且小于等于N/2的整数,所述第一参数基于二进制相移键控BPSK元素或者正交 相移键控QPSK元素确定,所述第二参数基于BPSK元素或者QPSK元素或者八相移键控8PSK元素确定。
在这种实施方式中,码本中包括的预编码矩阵中的行数相同,且均为N行。
可选地,m的取值可以为3、4或5等,对应地,N的取值可以为8、16或32等等。
可选地,在N行元素中,第1行元素的值可以是终端设备根据自身的配置信息确定的,或者可以是协议规定的,或者可以是网络设备向终端设备配置的。例如,网络设备可以在TPMI信息中包括第1行元素的值,或者网络设备通过其它信息指示第1行元素的值。
可选地,在N行元素中,第1行元素的值可以在预设值中选择,例如,第一行元素的值可以基于{1,-1,j,-j,0}中选择的值确定。在第一行元素中的值有多个的情况下,第一行元素中的值可以相同,或者,第一行元素中至少两个值不同。
本申请实施例中的至少部分元素可以是全部元素或者部分元素。不同行的至少部分元素可以在相同的位置上或不同的位置上。例如,第1至第N/2行的至少部分元素可以为一行中的前半部分元素,第N/2+1至第N行的至少部分元素可以为一行中的后半部分元素。
在一些实施例中,第i行元素中的至少部分元素和第i+N/2行元素中的至少部分元素可以相同或不同。在一些实施例中,基于第一参数确定第i行元素中的至少部分元素,与基于第一参数确定第i+N/2行元素中的至少部分元素的方式相同或不同。
在一些实施例中,N行元素可以满足:第i行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第一参数确定。
在另一些实施例中,N行元素可以满足:第1+N/2行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第二参数确定。可选地,第1行元素至第N/2行元素中的至少部分元素中的取值,可以是终端设备根据自身的配置信息确定的,或者可以是协议规定的,或者可以是网络设备配置的。例如,第1行元素至第N/2行元素中的至少部分元素中的取值,可以包括在TPMI信息中或其它信息中。
在又一些实施例中,N行元素可以满足:第i行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第一参数确定,并且,第1+N/2行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第二参数确定。这样,第i+N/2行元素中的至少部分元素,不仅基于第一参数确定,还基于第二参数确定。例如,第i+N/2行元素中的至少部分元素,可以第一参数和第二参数的乘积确定,或者可以基于第一参数和第二参数和确定,或者可以基于第一参数和第二参数的其它计算方式得到。
可选地,第一参数可以与i-1对应,例如,第一参数可以表示为x i-1。例如,第2行元素中的至少部分元素和第2+N/2行元素中的至少部分元素基于x 1确定,第3行元素中的至少部分元素和第3+N/2行元素中的至少部分元素基于x 2确定,第4行元素中的至少部分元素和第4+N/2行元素中的至少部分元素基于x 3确定等等。
可选地,第二参数可以表示为y 0和y i-1。例如,第1+N/2行元素中的至少部分元素基于y 0确定。可选地,第i+N/2行元素中的至少部分元素基于y i-1确定,例如,第2+N/2行元素中的至少部分元素基于y 1确定,第3+N/2行元素中的至少部分元素基于y 2确定,第4+N/2行元素中的至少部分元素基于y 3确定等等。
需要说明的是,本申请实施例中示出的是第一参数和第二参数的示意性表达,在其它实施例中,第一参数和第二参数可以用其它字母和/或下标来标识,本申请实施例对此不作限制。
在一些实施例中,N的数量可以为预编码矩阵对应的天线端口的数量,N行元素中的每行元素可以对应一个天线端口。
N行元素可以对应N/2组天线端口。在一些实施例中,第1行元素和第1+N/2行元素可以对应一组天线端口,第i行元素和第i+N/2行元素可以对应一组天线端口,其中,i的值不同,对应的天线端口也不同。例如,第2行元素和第2+N/2行元素可以对应一组天线端口,第3行元素和第3+N/2行元素可以对应一组天线端口,第4行元素和第4+N/2行元素可以对应一组天线端口等等。可选地,一组天线端口对应一组极化天线。
可选地,第一参数(例如,x i-1)可以表示天线端口组间的相对相位。可选地,第二参数(y 0、y i-1)可以表示天线端口组内的相对相位,这样,采用天线端口分组的方式基于组间相位和组内相位来构建码本,可以有效匹配不同天线的信道,从而实现不同天线端口之间的相干传输,提高上行传输的性能。
可选地,第i行元素中的至少部分元素和第i+N/2行元素中的至少部分元素所基于的第一参数的取值相同。例如,第i行元素中的至少部分元素所基于的第一参数x i-1的取值为A,第i+N/2行元素中的至少部分元素所基于的第一参数x i-1的取值为A。在i取值不同的情况下,x i-1的取值可以相同或不同。
可选地,第i行中的至少部分元素的取值可以基于BPSK元素或者QPSK元素确定。不同行中的至少部分元素的取值所基于的相移键控元素相同或不同。例如,第2至N/2行中的至少部分元素的取值均可以基于BPSK元素或均可以基于QPSK元素确定。又例如,第2行中的至少部分元素的取值均可以基于BPSK元素,第3行中的至少部分元素的取值均可以基于QPSK元素确定,第4行中的至少部分元素的取值均可以基于QPSK元素确定等等。
可选地,第1+N/2行元素中的至少部分元素和第i+N/2行元素中的至少部分元素的取值可以相同或不同。例如,第1+N/2行元素中的至少部分元素基于第二参数为y 0确定,第i+N/2行元素中的至少部分元素基于第二参数为y i-1确定。y 0的取值可以与y i-1(i可以为大于等于2且小于等于N/2的整数)的取值相同或不同。在i的取值不同的情况下,y i-1的取值可以相同或不同。
可选地,第1+N/2行元素中的至少部分元素或第i+N/2行元素中的至少部分元素,可以基于BPSK元素或者QPSK元素或者8PSK元素确定。不同行中的至少部分元素的取值所基于的相移键控元素相同或不同。例如,第1+N/2行元素中的至少部分元素和第i+N/2行元素中的至少部分元素,均可以基于BPSK元素或均可以基于QPSK元素或均可以基于8PSK元素确定。又例如,第1+N/2行元素中的至少部分元素基于QPSK元素确定,第2+N/2行元素中的至少部分元素基于QPSK元素确定,第3+N/2行元素中的至少部分元素基于QPSK元素确定,第4+N/2行元素中的至少部分元素基于8PSK元素确定。
在本申请实施例中,通过在i不同的情况下,第一参数和第二参数的不同的取值,从而能够得到码本中的不同的预编码矩阵。
在一些实施例中,N可以为8,表示终端设备具有8个天线端口,8个天线端口对应4个天线端口组,四个天线端口组可以设置在终端设备的四面或者四角。例如,CPE类型的终端,天线分布在四面,每一面可以有一组双极化天线,且不同面的天线之间的相关性较低。这样,采用天线端口分组的方式基于组间相位和组内相位来构建码本,可以有效匹配不同天线的信道,从而实现不同天线端口之间的相干传输,提高上行传输的性能。
码本中的预编码矩阵中的列数可以与传输层数相同,例如,在传输层数为1的情况下,预编码矩阵的列数为1,在传输层数为2的情况下,预编码矩阵的列数为2等等。
以下对传输层数为1的预编码矩阵进行说明:
在一些实施例中,对于传输层数为1的预编码矩阵,所述N行元素满足:所述第i行元素基于所述第一参数确定,并且所述第i+N/2行元素基于所述第一参数和所述第二参数确定。
在传输层数为1的情况下,预编码矩阵有一列元素。可选地,N行元素满足:所述第i行元素基于所述第一参数x i-1确定,并且所述第i+N/2行元素基于所述第一参数x i-1和所述第二参数y i-1确定。例如,第2行元素基于所述第一参数x 1确定,第3行元素基于所述第一参数x 2确定,第4行元素基于所述第一参数x 3确定等。例如,所述第2+N/2行元素基于所述第一参数x 1和所述第二参数y 1确定,所述第3+N/2行元素基于所述第一参数x 2和所述第二参数y 2确定,所述第4+N/2行元素基于所述第一参数x 3和所述第二参数y 3确定。
可选地,所述第i+N/2行元素基于所述第一参数和所述第二参数确定,可以包括:所述第i+N/2行元素基于所述第一参数和所述第二参数的乘积确定,或者基于所述第一参数和所述第二参数之和确定,或者基于所述第一参数和所述第二参数的其它数学计算结果确定。
可选地,对于传输层数为1的预编码矩阵,第一行元素可以基于{1,-1,j,-j,0}中的一者确定。例如,第一行元素可以基于1确定。
可选地,对于传输层数为1的预编码矩阵,第1+N/2行元素可以基于y 0确定,y 0可以基于BPSK元素或者QPSK元素或者8PSK元素确定。例如,y 0可以基于BPSK元素或者QPSK元素或者8PSK元素中的一个值确定。
以下对传输层数为2的预编码矩阵进行说明:
在一些实施例中,对于传输层数为2的预编码矩阵,所述N行元素满足:
所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素基于所述第一参数确 定,第1行元素对应的向量和所述第1+N/2行元素对应的向量正交,以及所述第i行元素对应的向量和所述第i+N/2行元素对应的向量正交。
其中,两个向量正交可以为两个向量的内积为0。
在传输层数为2的情况下,预编码矩阵中有两列元素。可选地,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均可以基于所述第一参数x i-1确定。
可选地,第1行元素中的每个元素可以基于{1,-1,j,-j,0}中的一者确定。可选地,第1行元素中两个元素的取值可以相同或不同。例如,第1行元素的两个元素的取值均为1。又例如,第1行元素的两个元素的取值分别为1和-1,或者-1和1,或者1和0,或者0和1。
可选地,第1+N/2行元素中的两个元素中的任一个可以基于BPSK元素或者QPSK元素或者8PSK元素确定。第1+N/2行元素中的两个元素,可以均基于BPSK元素中的一个值确定,或者可以均基于QPSK元素中的一个值确定,或者可以均基于8PSK元素中的一个值确定。第1+N/2行元素中的两个元素的取值可以相同或不同。可选地,第1+N/2行元素中的两个元素中的至少一个元素可以为0。
在一些实施例中,第i行元素中的两个元素,和第i+N/2行元素中的两个元素,可以均基于第一参数x i-1确定。例如,第i行元素中的第一个元素基于x i-1确定,第i行元素中的第二个元素基于x i-1确定,第i+N/2行元素中的第一个元素基于x i-1确定,第i+N/2行元素中的第二个元素基于x i-1确定。可选地,第i行元素的两个元素的取值可以相同。
在另一些实施例中,第i行元素中的一个元素和第i+N/2行元素中的一个元素,可以均基于x i-1确定。其中,第i行元素中的一个元素所在的列数,可以与第i+N/2行元素中的一个元素所在的列数不同。例如,第i行元素中的一个元素所在的列数为第一列,第i+N/2行元素中的一个元素所在的列数为第二列,或者,第i行元素中的一个元素所在的列数为第二列,第i+N/2行元素中的一个元素所在的列数为第一列。
在一些实施例中,对于传输层数为2的预编码矩阵,每行包括两个元素,所述N行元素满足:
所述第i行的全部元素和所述第i+N/2行的全部元素基于所述第一参数确定,并且所述第1+N/2行和所述第i+N/2行的全部元素还分别基于以下之一确定:{1,-1}、{j,-j}、{-1,1}、{-j,j}。
可选地,第i行的每个元素和第i+N/2行的每个元素可以均基于第一参数x i-1确定。例如,第2行的每个元素和第2+N/2行的每个元素可以均基于第一参数x 1确定,第3行的每个元素和第3+N/2行的每个元素可以均基于第一参数x 2确定,第4行的每个元素和第4+N/2行的每个元素可以均基于第一参数x 3确定。
可选地,第1行至第N/2行中每一行的两个元素的取值可以相同。例如,第一行中的两个元素的取值可以均为1,第二行的两个元素的取值可以均为B1,第三行的两个元素的取值可以均为B2,第四行的两个元素的取值可以均为B3。其中,B1、B2以及B3的取值可以相同,或者,B1、B2以及B3中至少两者的取值可以互不相同。可选地,在另一些实施例中,第1行至第N/2行中至少一行的两个元素的取值可以不同。例如,第一行的两个元素的取值可以分别为1和-1,第二行的两个元素的取值可以分别为-1和-1,第三行的两个元素的取值可以分别为1和1,第四行的两个元素的取值可以分别为j和1。
在这种实施方式中,第i+N/2行的全部元素不仅基于所述第一参数x i-1确定,还基于以下之一确定:{1,-1}、{j,-j}、{-1,1}、{-j,j}。例如,以基于{1,-1},以及i=2来说,第2+N/2行的的第一个元素基于第一参数与1确定(例如,基于第一参数与1的乘积确定),第2+N/2行的的第二个元素基于第一参数与-1确定(例如,基于第一参数与-1的乘积确定)。
可选地,第i行和第i+N/2行中的任一行的全部元素,基于{1,-1}、{j,-j}、{-1,1}、{-j,j}中的任一个确定。
可选地,在i的取值不同的情况下,第1+N/2行或第i+N/2行对应的两个不同行的全部元素,可以基于{1,-1}、{j,-j}、{-1,1}、{-j,j}中的两个来确定,或者,可以均基于{1,-1}、{j,-j}、{-1,1}或{-j,j}确定。
例如,第1+N/2行的两个元素可以分别基于{1,-1}这两个值确定,第2+N/2行的两个元素可以分别基于{1,-1}这两个值确定,第3+N/2行的两个元素可以分别基于{j,-j}这两个值确定,第4+N/2行的两个元素可以分别基于{1,-1}这两个值确定。又例如,第1+N/2行的两个元素可以分别基于{1,-1}这两个值确定,第2+N/2行的两个元素可以分别基于{1,-1}这两个值确定,第3+N/2行的两个元素可以分别基于{1,-1}这两个值确定,第4+N/2行的两个元素可以分别基于{1,-1}这两个值确定。
在一些实施例中,对于传输层数为2的预编码矩阵,每行包括两个元素,所述N行元素满足:
所述第i行的两个元素中的第一列元素基于所述第一参数确定,并且所述第i+N/2行的两个元素中的第二列元素基于所述第一参数确定。
可选地,所述第i行的两个元素中的第二列元素为0,第i+N/2行的两个元素中的第一列元素为0。
可选地,第1行的两个元素中的第一列元素基于1确定,第二列元素为0。可选地,第1+N/2行的两个元素中的第一列元素为0,第二列元素基于1确定。
在一些实施例中,可以对码本中的预编码矩阵进行功率归一化。可选地,码本中的预编码矩阵还可以基于第一系数确定。第一系数可以基于预编码矩阵中的非零元素的数量确定。例如,预编码矩阵中的非零元素的数量为j,第一系数可以为
Figure PCTCN2022079786-appb-000011
在另一些实施例中,码本中的预编码矩阵还可以基于第二系数确定,第二系数可以为1。
在又一些实施例中,码本中的预编码矩阵还可以基于第三系数确定,第三系数可以基于预编码矩阵中的所有元素的数量确定。例如,预编码矩阵中的所有元素的数量为k,第一系数可以为
Figure PCTCN2022079786-appb-000012
以下以N=8为例,对本申请实施例中码本中的预编码矩阵进行说明:
在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定;在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3;其中,
在一些实施例中,x 1、x 2、x 3的取值均为1。
在另一些实施例中,x 1、x 2、x 3中任一个为所述BPSK元素中的一个。在这种情况下,x 1、x 2、x 3可以均为BPSK元素的值。可选地,x 1、x 2、x 3中任一个为所述BPSK元素中的一个,可以是终端设备根据自身的配置信息确定的,或者,可以是网络设备向终端设备配置的,或者,可以是在设计码本时设定的。
在又一些实施例中,x 1、x 2、x 3中任一个为所述QPSK元素中的一个。在这种情况下,x 1、x 2、x 3可以均为QPSK元素的值。可选地,x 1、x 2、x 3中任一个为所述QPSK元素中的一个,可以是终端设备根据自身的配置信息确定的,或者,可以是网络设备向终端设备配置的,或者,可以是在设计码本时设定的。
在又一些实施例中,x 1为1,x 2、x 3中任一个为所述BPSK元素中的一个或所述QPSK元素中的一个。在这种情况下,x 1为1,x 2可以为BPSK元素中的一个或所述QPSK元素中的一个,x 3可以为BPSK元素中的一个或所述QPSK元素中的一个。可选地,x 2、x 3中任一个为所述BPSK元素中的一个或所述QPSK元素中的一个,可以是终端设备根据自身的配置信息确定的,或者,可以是网络设备向终端设备配置的,或者,可以是在设计码本时设定的。
在又一些实施例中,x 2为1,x 1、x 3中任一个为所述BPSK元素中的一个或所述QPSK元素中的一个。在这种情况下,x 2为1,x 1可以为BPSK元素中的一个或所述QPSK元素中的一个,x 3可以为BPSK元素中的一个或所述QPSK元素中的一个。可选地,x 1、x 3中任一个为所述BPSK元素中的一个或所述QPSK元素中的一个,可以是终端设备根据自身的配置信息确定的,或者,可以是网络设备向终端设备配置的,或者,可以是在设计码本时设定的。
在一些实施例中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定;在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3;其中,所述方法还包括:
所述终端设备接收第一信息;所述第一信息用于指示x 1、x 2、x 3中任一个为所述BPSK元素中的一个或者所述QPSK元素中的一个;或者,在x 1为1时,所述第一信息用于指示x 2、x 3中任一个为所述BPSK元素中的一个或者所述QPSK元素中的一个;或者,在x 2为1时,x 1、x 3中任一个为所述BPSK元素中的一个或者所述QPSK元素中的一个。
可选地,终端设备可以接收网络设备发送的第一信息。
可选地,在第一信息指示x 2、x 3中任一个为所述BPSK元素中的一个或者所述QPSK元素中的一个的情况下,终端设备可以默认x 1为1。例如,第一信息中采用1比特指示x 2、x 3是采用BPSK元素还是QPSK元素。
可选地,在第一信息指示x 1、x 3中任一个为所述BPSK元素中的一个或者所述QPSK元素中的一个的情况下,终端设备可以默认x 2为1。例如,第一信息中采用1比特指示x 1、x 3是采用BPSK 元素还是QPSK元素。
这样,通过第一信息指示x 1、x 2、x 3中任一个从什么元素中取值,或者通过第一信息指示x 2、x 3中任一个从什么元素中取值,或者通过第一信息指示x 1、x 3中任一个从什么元素中取值,从而能够使得终端设备确定x 1、x 2、x 3中的每一个从什么元素中取值,有利于终端设备从码本中确定预编码矩阵。例如,第一信息中采用1比特指示x 1、x 2、x 3是都采用BPSK元素还是都采用QPSK元素。
在一些实施例中,所述终端设备基于所述第一信息,确定所述TPMI信息的长度和/或所述码本中的预编码矩阵数量(也可以称为码本的大小)。
在一些实施方式中,对于{x 1,x 2,x 3}的可能取值以及对应的TPMI信息的指示方式,可以考虑以下几种方法:
方法1:x 1,x 2,x 3的取值均恒为1。此时TPMI信息中不需要信息来指示x 1,x 2,x 3
方法2:x 1,x 2,x 3分别为BPSK元素{1,-1}中的任意一个。此时,为了确定x i(包括x 1,x 2,x 3中的至少一个)的取值,需要在TPMI信息中分别用1比特指示x 1,x 2,x 3中的至少一个。
方法3:x 1,x 2,x 3分别为QPSK元素{1,-1,j,-j}中的任意一个。此时,为了确定x i的取值,需要在TPMI信息中分别用2比特指示x 1,x 2,x 3中的至少一个。
方法4:x 1恒等于1,x 2,x 3分别为BPSK元素中的任意一个或者QPSK元素中的任意一个。此时,需要在TPMI信息中分别用1比特或2比特来指示x 2和x 3中的至少一个。
方法5:x 2恒等于1,x 1,x 3分别为BPSK元素中的任意一个或者QPSK元素中的任意一个。此时,需要在TPMI信息中分别用1比特或2比特来指示x 1和x 3中的至少一个。
在一种实施方式中,终端设备可以接收网络设备的配置信息来确定采用以上哪种方法来得到{x 1,x 2,x 3}中的至少一个的取值,从而得到所述码本。
在另一种实施方式中,终端设备还可以接收网络设备配置的第一信息,所述第一信息用于指示在上述方法中采用BPSK元素还是QPSK元素。例如,第一信息用于指示x 1,x 2,x 3分别为BPSK元素中的任意一个(方法2),还是分别为QPSK元素中的任意一个(方法3);或者,在方法4中,所述第一信息用于指示x 1=1时,x 2,x 3分别为BPSK元素中的任意一个,还是分别为QPSK元素中的任意一个;或者,在方法5中,所述第一信息用于指示x 2=1时,x 1,x 3分别为BPSK元素中的任意一个,还是分别为QPSK元素中的任意一个。由于第一信息决定了x 1,x 2,x 3的取值范围,也就决定了TPMI信息中用于指示x 1,x 2,x 3的比特数,终端设备可以根据第一信息来确定所述TPMI信息域的大小(即TPMI信息的长度,或者,用于指示预编码矩阵的比特数),从而确定携带所述TPMI信息的DCI的长度。可选地,DCI的长度可以基于所述TPMI信息域的大小和DCI中的其它信息的大小确定。
在一些实施例中,在N为8的情况下,所述第1+N/2行元素中的至少部分元素基于y 0确定,所述第i+N/2行元素中的至少部分元素基于y i-1确定,在i取值为2至4的情况下,y i-1对应表示为y 1、y 2以及y 3;其中,所述方法还包括:
所述终端设备接收第二信息;所述第二信息用于指示:y 0、y 1、y 2、y 3中任一个为所述BPSK元素中的一个、所述QPSK元素中的一个或者所述8PSK元素中的一个。
可选地,终端设备可以接收网络设备发送的第二信息。
例如,第二信息可以指示y 0、y 1、y 2、y 3中任一个为所述BPSK元素中的一个,或者,第二信息可以指示y 0、y 1、y 2、y 3中任一个为所述QPSK元素中的一个,或者,第二信息可以指示y 0、y 1、y 2、y 3中任一个为所述8PSK元素中的一个。又例如,第二信息可以指示y 0、y 1、y 2、y 3可以从BPSK元素、QPSK元素以及8PSK元素中不同的元素取值。
这样,通过第二信息指示y 0、y 1、y 2、y 3中任一个从什么元素中取值,从而能够使得终端设备确定y 0、y 1、y 2、y 3中的每一个从什么元素中取值,有利于终端设备从码本中确定预编码矩阵。
在一些实施例中,所述终端设备基于所述第二信息,确定所述TPMI信息的长度和/或所述码本中的预编码矩阵数量。
在一种实施方式中,终端设备接收网络设备配置的第二信息,所述第二信息用于指示y 0,y 1,y 2,y 3的取值范围。例如,用于指示y 0,y 1,y 2,y 3均为BPSK元素,还是均为QPSK元素,还是均为8PSK元素。其中,y 0,y 1,y 2,y 3可以采用相同的取值范围,例如,均为QPSK元素。由于第二信息决定了y 0, y 1,y 2,y 3的取值范围,也就决定了TPMI信息中用于指示y 0,y 1,y 2,y 3的比特数,终端可以根据第二信息来确定所述TPMI信息域的大小,从而确定携带所述TPMI信息的DCI的长度。
可选地,TPMI信息域的大小可以基于第一信息和/或第二信息确定。
例如,假设x 1,x 2,x 3的的取值均恒为1,y 0,y 1,y 2,y 3均为QPSK元素,则分别需要2比特用于指示y 0,y 1,y 2,y 3,此时TPMI信息需要8比特,且所述码本大小为4 4=256。
又例如,假设x 1,x 2,x 3分别为BPSK元素{1,-1}中的任意一个,y 0,y 1,y 2,y 3均为QPSK元素,则分别需要1比特用于指示x 1,x 2,x 3,且分别需要2比特用于指示y 0,y 1,y 2,y 3,此时TPMI信息需要3*1+4*2=11比特,且所述码本大小为2 3*4 4=2048。
在一些实施例中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定;在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3;其中,所述TPMI信息包括以下至少之一:
x 1的指示信息,所述x 1的指示信息用于指示:所述BPSK元素中的一个(通过一个比特指示)或者所述QPSK元素中的一个(通过两个比特指示);
x 2的指示信息,所述x 2的指示信息用于指示:所述BPSK元素中的一个或者所述QPSK元素中的一个;
x 3的指示信息,所述x 3的指示信息用于指示:所述BPSK元素中的一个或者所述QPSK元素中的一个。
这样,通过TPMI信息就可以指示x 1、x 2、x 3中至少一者的确定值,从而使得终端设备可以直接基于TPMI信息中x 1、x 2、x 3中至少一者的确定值,从码本中确定预编码矩阵。
在实施过程中,网络设备确定x 1、x 2、x 3中至少一者的确定值的方式,可以参考其它实施例中确定x 1、x 2、x 3中至少一者的确定值的方式。
在一些实施例中,在N为8的情况下,所述第1+N/2行元素中的至少部分元素基于y 0确定,所述第i+N/2行元素中的至少部分元素基于y i-1确定,在i取值为2至4的情况下,y i-1对应表示为y 1、y 2以及y 3;其中,
所述TPMI信息包括以下至少之一:
y 0的指示信息,所述y 0的指示信息用于指示:所述BPSK元素中的一个(通过一个比特指示)、所述QPSK元素中的一个(通过两个比特指示)或者8PSK元素中的一个(通过三个比特指示);
y 1的指示信息,所述y 1的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个;
y 2的指示信息,所述y 2的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个;
y 3的指示信息,所述y 3的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个。
这样,通过TPMI信息就可以指示y 0、y 1、y 2、y 3中至少一者的确定值,从而使得终端设备可以直接基于TPMI信息中y 0、y 1、y 2、y 3中至少一者的确定值,从码本中确定预编码矩阵。
在实施过程中,网络设备确定y 0、y 1、y 2、y 3中至少一者的确定值的方式,可以参考其它实施例中确定y 0、y 1、y 2、y 3中至少一者的确定值的方式。
在一些实施例中,在N为8的情况下,所述第5行的两个元素还基于{y 0,y 4}确定,所述第6行的两个元素还基于{y 1,y 5}确定,所述第7行的两个元素还基于{y 2,y 6}确定,所述第8行的两个元素还基于{y 3,y 7}确定;其中,所述TPMI信息还包括以下至少之一:
所述{y 0,y 4}的指示信息,所述{y 0,y 4}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一(通过两个比特指示);
所述{y 1,y 5}的指示信息,所述{y 1,y 5}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一;
所述{y 2,y 6}的指示信息,所述{y 2,y 6}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一;
所述{y 3,y 7}的指示信息,所述{y 3,y 7}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一。
可选地,所述{y 0,y 4}的指示信息、所述{y 1,y 5}的指示信息、所述{y 2,y 6}的指示信息、所述{y 3,y 7}的指示信息中的至少一者,可以用于指示{1,-1}、{j,-j}之一(通过一个比特指示),或者可以用 于指示{-1,1}、{-j,j}之一(通过一个比特指示),或者可以用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一(通过两个比特指示)。
这样,通过TPMI信息就可以指示{y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}中至少一者的确定值,从而使得终端设备可以直接基于TPMI信息中{y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}中至少一者的确定值,从码本中确定预编码矩阵。
在实施过程中,网络设备确定{y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}中至少一者的确定值的方式,可以参考其它实施例中确定{y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}中至少一者的确定值的方式。
在一些实施例中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定,在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3,和/或,所述第1+N/2行元素中的至少部分元素基于y 0确定,所述第i+N/2行元素中的至少部分元素基于y i-1确定,在i取值为2至4的情况下,y i-1对应表示为y 1、y 2以及y 3;其中,所述方法还包括:所述终端设备接收码本子集约束信息;所述码本子集约束信息用于指示以下至少之一:
x 1、x 2、x 3中至少一个的取值范围约束;
y 0、y 1、y 2、y 3中至少一个的取值范围约束。
可选地,终端设备接收网络设备发送的码本子集约束信息。可选地,所述码本子集约束信息包括第一比特图和/或第二比特图;所述第一比特图用于指示:所述x 1、x 2、x 3中至少一个的取值范围约束;所述第二比特图用于指示:所述y 0、y 1、y 2、y 3中至少一个的取值范围约束。
在一些实施例中,在N为8的情况下,所述第5行的两个元素还基于{y 0,y 4}确定,所述第6行的两个元素还基于{y 1,y 5}确定,所述第7行的两个元素还基于{y 2,y 6}确定,所述第8行的两个元素还基于{y 3,y 7}确定;其中,所述方法还包括:
所述终端设备接收第二码本子集约束信息;所述第二码本子集约束信息用于指示:
{y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}中至少一个的取值范围约束。
可选地,终端设备接收网络设备发送的第二码本子集约束信息。可选地,所述第二码本子集约束信息包括第三比特图;所述第三比特图用于指示:所述{y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}中至少一个的取值范围约束。
在一种实施方式中,终端设备可以接收网络设备配置的码本子集约束信息(即上述的码本子集约束信息和/或第二码本子集约束信息),所述码本子集约束信息用于指示如下(1)、(2)以及(3)中的至少一个:
(1)x 1、x 2、x 3中至少一个的取值范围约束。例如,假设x 1、x 2、x 3是QPSK元素,网络设备均可以用4比特的比特图(bitmap)指示其中哪些元素是可用的,例如指示其取值只能是1和-1。例如,对于x 1可以从{1,-1,j,-j}中取值,通过bitmap为[1,1,0,0],可以确定x 1的取值为1或-1,或者,通过bitmap为[0,1,1,1],可以确定x 1的取值为-1,j或-j。
(2)y 0、y 1、y 2、y 3中至少一个的取值范围约束。例如,假设y 0、y 1、y 2、y 3是8PSK元素,网络设备均可以用8比特的bitmap指示其中哪些元素是可用的,例如指示其取值只能是1和j。例如,对于y 0可以从
Figure PCTCN2022079786-appb-000013
中取值,通过bitmap为[1,1,0,0,0,0,0,0],可以确定y 0的取值为1或-1,或者,通过bitmap为[1,1,1,1,0,0,0,0],可以确定y 0的取值为QPSK元素中的一个。
(3){y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}中至少一个的取值范围约束。例如,网络设备可以用4比特的bitmap指示其取值只能是{1,-1}、{j,-j}、{-1,1}、{-j,j}中的哪些。例如,对于{y 0,y 4},通过bitmap为[1,1,0,0]指示取值范围为{1,-1}或{j,-j}。
可选地,终端设备可以根据所述码本子集约束信息,确定所述码本中可用的预编码矩阵,即所述TPMI信息可能指示的预编码矩阵。进一步的,终端设备可以根据该信息,确定所述TPMI信息域的大小,从而确定携带所述TPMI信息的DCI的长度。
在本申请实施例中,所述BPSK元素包括{1,-1};
所述QPSK元素包括{1,-1,j,-j};
所述8PSK元素包括
Figure PCTCN2022079786-appb-000014
在一些实施例中,所述TPMI信息通过用于调度所述PUSCH的下行信令指示;所述下行信令包括高层信令或者下行控制信息DCI信令。
在一些实施例中,所述方法还包括:终端设备接收秩指示RI;所述终端设备基于所述RI,确定所述传输层数。
可选地,终端设备接收网络设备发送的秩指示RI。可选地,RI可以与TPMI信息在同一个信令中,或者,RI可以与TPMI信息在不同的信令中。可选地,TPMI信息可以包括同时包括RI和TPMI的指示信息。例如,TPMI的指示信息可以用于指示TPMI索引和/或预编码矩阵中至少一个元素的取值。
可选地,RI指示可以用于指示Rank,Rank的值可以为传输层数。
在一些实施例中,对于传输层数为1的预编码矩阵,所述码本中包括基于
Figure PCTCN2022079786-appb-000015
确定的所述多个预编码矩阵;x 1、x 2、x 3中任一个为BPSK元素中的一个或者QPSK元素中的一个;y 0、y 1、y 2、y 3中任一个为所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个。
可选地,x 1、x 2以及x 3可以均为BPSK元素中的一个。可选地,x 1、x 2以及x 3可以均为QPSK元素中的一个。可选地,x 1、x 2以及x 3中的一部分可以为BPSK元素中的一个,另一部分可以为QPSK元素中的一个。x 1、x 2、x 3中任两个值可以相同或不同。
可选地,y 0、y 1、y 2以及y 3可以均为BPSK元素中的一个。可选地,y 0、y 1、y 2以及y 3可以均为QPSK元素中的一个。可选地,y 0、y 1、y 2以及y 3可以均为8PSK元素中的一个。可选地,y 0、y 1、y 2以及y 3可以为BPSK元素、QPSK元素、8PSK元素中至少两个元素中的值。y 0、y 1、y 2、y 3中任两个值可以相同或不同。
可选地,码本中可以不仅包括基于
Figure PCTCN2022079786-appb-000016
确定的多个预编码矩阵,还可以包括基于其它信息确定的预编码矩阵。可选地,在传输层数为1的情况下,码本中的多个预编码矩阵可以为
Figure PCTCN2022079786-appb-000017
在另一实施例中,码本中可以包括基于
Figure PCTCN2022079786-appb-000018
确定的多个预编码矩阵。
在本申请实施例中,{1,y 0}、{x 1,x 1y 1}、{x 2,x 2y 2}、{x 3,x 3y 3}可以分别对应一组天线端口, y i(i为1、2或3)对应天线端口组内的相对相位,x i对应天线端口组间的相对相位,这样,采用天线端口分组的方式基于组间相位和组内相位来构建码本,可以有效匹配不同天线的信道,从而实现不同天线端口之间的相干传输,提高上行传输的性能。
在一些实施例中,对于传输层数为2的预编码矩阵,所述码本中包括基于
Figure PCTCN2022079786-appb-000019
确定的所述多个预编码矩阵;x 1、x 2、x 3中任一个为BPSK元素中的一个或者QPSK元素中的一个;{y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}中任一个为{1,-1}、{j,-j}、{-1,1}、{-j,j}之一。
可选地,x 1、x 2、x 3中任一个为BPSK元素中的一个或者QPSK元素中的一个。{y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}中任一个为{1,-1}、{j,-j}、{-1,1}、{-j,j}之一。
例如,{y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}可以均为{1,-1}。又例如,{y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}可以均为{j,-j}。再例如,{y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}可以从{1,-1}、{j,-j}、{-1,1}、{-j,j}中取不同的值。
可选地,码本中不仅可以包括基于
Figure PCTCN2022079786-appb-000020
确定的多个预编码矩阵,还可以包括基于其他信息确定的预编码矩阵。可选地,在传输层数为2的情况下,码本中的预编码矩阵可以为
Figure PCTCN2022079786-appb-000021
在另一实施例中,码本中可以包括基于
Figure PCTCN2022079786-appb-000022
确定的多个预编码矩阵。其中,x 1,x 2,x 3用于确定天线端口组之间(即不同组极化天线间)的相对相位。
可选地,{y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}中至少两者的取值范围相同,例如,取值范围可以都是{1,-1}、{j,-j}、{-1,1}、{-j,j}之一,但实际取值可以不同或相同,表示两个传输层在每组天线端口上的相对相位。通过在{1,-1}和{j,-j}二者之中选择,或者在{-1,1}和{-j,j}二者之中选择,可以使得两个传输层在每组天线端口上的预编码向量都是正交的(比如,[1 1]和[1 -1]是正交的,[1 j]和[1 -j]是正交的)。
在这种情况下,通过y 0,y 4的取值是绑定的,y 1,y 5的取值是绑定的,y 2,y 6的取值是绑定的,y 3,y 7的取值是绑定的,能够使得两个传输层在每组天线端口上的预编码向量都是正交的。
在一些实施例中,对于传输层数为2的预编码矩阵,所述码本中包括基于
Figure PCTCN2022079786-appb-000023
确定的所述多个预编码矩阵;x 1、x 2、x 3中任一个为BPSK元素中的一个或者QPSK元素中的一个。可选地,x 1,x 2,x 3的取值可以参考传输层数为1时的描述。
可选地,码本中不仅可以包括基于
Figure PCTCN2022079786-appb-000024
确定的多个预编码矩阵,还可以包括基于其他信息确定的预编码矩阵。可选地,在传输层数为2的情况下,码本中的预编码矩阵可以为
Figure PCTCN2022079786-appb-000025
在另一实施例中,码本中可以包括基于
Figure PCTCN2022079786-appb-000026
Figure PCTCN2022079786-appb-000027
确定的多个预编码矩阵。其中,x 1,x 2,x 3用于确定天线端口组之间(即不同组极化天线间)的相对相位,取值可以参考传输层数为1时的描述。在这种方式中,对于每个天线端口组内,每个天线端口用于传输一个数据流,从而分别支持2个数据流的传输。可选地,一个数据流可以对应一个传输层数,2个数据流可以一一对应2个传输层数。
在一些实施例中,
Figure PCTCN2022079786-appb-000028
这三个矩阵中的每行表示一个天线端口,8个天线端口可以分为四组(即对应的四个天线端口组),其中,这三个矩阵中的第1、5行为一组,第2、6行为一组,第3、7行为一组,第4、8行为一组,每组天线端口对应一组极化天线。其中,这三个矩阵中的第2至4行用于确定天线端口组之间(即不同组极化天线间)的相对相位,这三个 矩阵中的第5至8行用于确定天线端口组内(即一组极化天线内)的相对相位。例如,以矩阵
Figure PCTCN2022079786-appb-000029
为例,{x 1,x 2,x 3}用于确定天线端口组之间(即不同组极化天线间)的相对相位,{y 0,y 1,y 2,y 3}用于确定天线端口组内(即一组极化天线内)的相对相位。
需要说明的是,本申请实施例中预编码矩阵
Figure PCTCN2022079786-appb-000030
中的系数
Figure PCTCN2022079786-appb-000031
Figure PCTCN2022079786-appb-000032
是为了使得预编码矩阵的功率归一化,即本申请实施例中在预编码过程中做了功率归一化。
在本申请的其它实施例中,可以不在预编码过程中做功率归一化,而功率归一化可以在预编码过程之外的其它过程中实现,本申请实施例对此不作限制。
示例性地,在另一些实施例中,预编码矩阵中的系数可以为1。在又一些实施例中,预编码矩阵中的系数可以为
Figure PCTCN2022079786-appb-000033
k可以为预编码矩阵中所有元素的数量。
通过上行8天线端口的PUSCH传输,相比较于相关技术的上下行预编码矩阵,对于配置某些特别的天线阵列的终端(例如天线分布在四面的CPE类型的终端),可以有效提高上行传输的性能。
需要说明的是,上述列举了8端口天线对应的码本包括的预编码矩阵,在对应16天线端口的情况下预编码矩阵可以与上述的类似。例如,对于传输层数为1的预编码矩阵,预编码矩阵基于[1x 1至x 7y 0x 1y 1至x 7y 7]的转置确定。又例如,对于传输层数为2的预编码矩阵,预编码矩阵的第一列基于[1 x 1至x 7 y 0 x 1y 1至x 7y 7]的转置确定,预编码矩阵的第二列基于[1 x 1至x 7 y 8 x 1y 9至x 7y 15]的转置确定。又例如,对于传输层数为2的预编码矩阵,预编码矩阵的第一列基于[1 x 1至x 7 0 0 0 0 0 0 0 0]的转置确定,预编码矩阵的第二列基于[0 0 0 0 0 0 0 0 1 x 1至x 7]的转置确定。
在天线端口数为8且传输层数为4的情况下,终端设备的一个侧边对应的天线端口可以传输一个数据流,不同的侧边对应的天线端口用于传输不同的数据流。例如,预编码矩阵可以基于
Figure PCTCN2022079786-appb-000034
确定。
本申请实施例提供了一种上行8或者8以上的天线端口预编码矩阵的设计方法,可以将终端设备的所有天线分成四组,通过组间的相对相位与每组的组内相位的不同可能组合来得到上行预编码矩阵,并通过网络设备在DCI指示的组间相位和每组的组内相位来确定当前传输使用的预编码矩阵。基于本申请实施例的方法所设计的上行预编码矩阵,可以用于上行8或者8以上的天线端口的PUSCH传输,特别对于天线分布在四面的CPE类型的终端,可以有效提高上行传输的性能。需要说明的是,本申请实施例中的方法对天线端口为水平排列、水平垂直二维排列或其它方式排列同样适用。
图6为本申请实施例提供的另一种通信方法的流程示意图,如图6所示,该方法包括:
S601、网络设备从码本中确定第一预编码矩阵;所述码本包括多个预编码矩阵。
S602、所述网络设备发送与所述第一预编码矩阵对应的传输预编码矩阵指示TPMI信息。
S603、所述网络设备接收预编码后的上行信息;所述预编码后的上行信息是采用所述第一预编码矩阵对上行信息进行预编码确定的。
其中,所述码本中的每个预编码矩阵包括N行元素,N为大于等于2 m的整数,m为大于等于3的整数,所述N行元素满足以下至少一种特征:
第i行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第一参数确定;
第1+N/2行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第二参数确定;
i为大于等于2且小于等于N/2的整数,所述第一参数基于二进制相移键控BPSK元素或者正交相移键控QPSK元素确定,所述第二参数基于BPSK元素或者QPSK元素或者八相移键控8PSK元素确定。
在一些实施例中,对于传输层数为1的预编码矩阵,所述N行元素满足:
所述第i行元素基于所述第一参数确定,并且所述第i+N/2行元素基于所述第一参数和所述第二参数确定。
在一些实施例中,对于传输层数为2的预编码矩阵,所述N行元素满足:
所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素基于所述第一参数确定,第1行元素对应的向量和所述第1+N/2行元素对应的向量正交,以及所述第i行元素对应的向量和所述第i+N/2行元素对应的向量正交。
在一些实施例中,对于传输层数为2的预编码矩阵,每行包括两个元素,所述N行元素满足:
所述第i行的全部元素和所述第i+N/2行的全部元素基于所述第一参数确定,并且所述第1+N/2行和所述第i+N/2行的全部元素还分别基于以下之一确定:{1,-1}、{j,-j}、{-1,1}、{-j,j}。
在一些实施例中,对于传输层数为2的预编码矩阵,每行包括两个元素,所述N行元素满足:
所述第i行的两个元素中的第一列元素基于所述第一参数确定,并且所述第i+N/2行的两个元素中的第二列元素基于所述第一参数确定。
在一些实施例中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定;在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3;其中,
所述x 1、x 2以及x 3满足以下至少一种特征:
x 1、x 2、x 3的取值均为1;
x 1、x 2、x 3中任一个为所述BPSK元素中的一个;
x 1、x 2、x 3中任一个为所述QPSK元素中的一个;
x 1为1,x 2、x 3中任一个为所述BPSK元素中的一个或所述QPSK元素中的一个;
x 2为1,x 1、x 3中任一个为所述BPSK元素中的一个或所述QPSK元素中的一个。
在一些实施例中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定;在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3;其中,
所述方法还包括:
所述网络设备发送第一信息;所述第一信息用于指示x 1、x 2、x 3中任一个为所述BPSK元素中的一个或者所述QPSK元素中的一个;或者,在x 1为1时,所述第一信息用于指示x 2、x 3中任一个为所述BPSK元素中的一个或者所述QPSK元素中的一个;或者,在x 2为1时,x 1、x 3中任一个为所述BPSK元素中的一个或者所述QPSK元素中的一个。
在一些实施例中,所述方法还包括:
所述网络设备基于所述第一信息,确定所述TPMI信息的长度和/或所述码本中的预编码矩阵数量。
在一些实施例中,在N为8的情况下,所述第1+N/2行元素中的至少部分元素基于y 0确定,所述第i+N/2行元素中的至少部分元素基于y i-1确定,在i取值为2至4的情况下,y i-1对应表示为y 1、y 2以及y 3;其中,
所述方法还包括:
所述网络设备发送第二信息;所述第二信息用于指示:y 0、y 1、y 2、y 3中任一个为所述BPSK元素中的一个、所述QPSK元素中的一个或者所述8PSK元素中的一个。
在一些实施例中,所述方法还包括:
所述网络设备基于所述第二信息,确定所述TPMI信息的长度和/或所述码本中的预编码矩阵数量。
在一些实施例中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定;在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3;其中,
所述TPMI信息包括以下至少之一:
x 1的指示信息,所述x 1的指示信息用于指示:所述BPSK元素中的一个或者所述QPSK元素中的一个;
x 2的指示信息,所述x 2的指示信息用于指示:所述BPSK元素中的一个或者所述QPSK元素中的一个;
x 3的指示信息,所述x 3的指示信息用于指示:所述BPSK元素中的一个或者所述QPSK元素中的一个。
在一些实施例中,在N为8的情况下,所述第1+N/2行元素中的至少部分元素基于y 0确定,所述第i+N/2行元素中的至少部分元素基于y i-1确定,在i取值为2至4的情况下,y i-1对应表示为y 1、y 2以及y 3;其中,
所述TPMI信息包括以下至少之一:
y 0的指示信息,所述y 0的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个;
y 1的指示信息,所述y 1的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个;
y 2的指示信息,所述y 2的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个;
y 3的指示信息,所述y 3的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个。
在一些实施例中,在N为8的情况下,所述第5行的两个元素还基于{y 0,y 4}确定,所述第6行的两个元素还基于{y 1,y 5}确定,所述第7行的两个元素还基于{y 2,y 6}确定,所述第8行的两个元素还基于{y 3,y 7}确定;其中,
所述TPMI信息还包括以下至少之一:
所述{y 0,y 4}的指示信息,所述{y 0,y 4}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一;
所述{y 1,y 5}的指示信息,所述{y 1,y 5}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一;
所述{y 2,y 6}的指示信息,所述{y 2,y 6}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一;
所述{y 3,y 7}的指示信息,所述{y 3,y 7}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一。
在一些实施例中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定,在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3,和/或,所述第1+N/2行元素中的至少部分元素基于y 0确定,所述第i+N/2行元素中的至少部分元素基于y i-1确定,在i取值为2至4的情况下,y i-1对应表示为y 1、y 2以及y 3;其中,
所述方法还包括:
所述网络设备发送码本子集约束信息;所述码本子集约束信息用于指示以下至少之一:
x 1、x 2、x 3中至少一个的取值范围约束;
y 0、y 1、y 2、y 3中至少一个的取值范围约束。
在一些实施例中,在N为8的情况下,所述第5行的两个元素还基于{y 0,y 4}确定,所述第6行的两个元素还基于{y 1,y 5}确定,所述第7行的两个元素还基于{y 2,y 6}确定,所述第8行的两个元素还基于{y 3,y 7}确定;其中,
所述方法还包括:
所述网络设备发送第二码本子集约束信息;所述第二码本子集约束信息用于指示:
{y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}中至少一个的取值范围约束。
在一些实施例中,所述BPSK元素包括{1,-1};
所述QPSK元素包括{1,-1,j,-j};
所述8PSK元素包括
Figure PCTCN2022079786-appb-000035
在一些实施例中,所述TPMI信息通过用于调度所述PUSCH的下行信令指示;所述下行信令包括高层信令或者下行控制信息DCI信令。
在一些实施例中,所述方法还包括:
所述网络设备发送秩指示RI;所述RI用于确定所述传输层数。
在一些实施例中,对于传输层数为1的预编码矩阵,所述码本中包括基于
Figure PCTCN2022079786-appb-000036
确定的所述多个预编码矩阵;x 1、x 2、x 3中任一个为BPSK元素中的一个或者QPSK元素中的一个;y 0、y 1、y 2、y 3中任一个为所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个。
在一些实施例中,对于传输层数为2的预编码矩阵,所述码本中包括基于
Figure PCTCN2022079786-appb-000037
确定的所述多个预编码矩阵;x 1、x 2、x 3中任一个为BPSK元素中的一个或者QPSK元素中的一个;{y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}中任一个为{1,-1}、{j,-j}、{-1,1}、{-j,j}之一。
在一些实施例中,对于传输层数为2的预编码矩阵,所述码本中包括基于
Figure PCTCN2022079786-appb-000038
确定的所述多个预编码矩阵;x 1、x 2、x 3中任一个为BPSK元素中的一个或者QPSK元素中的一个。
以上结合附图详细描述了本申请的优选实施方式,但是,本申请并不限于上述实施方式中的具体细节,在本申请的技术构思范围内,可以对本申请的技术方案进行多种简单变型,这些简单变型均属于本申请的保护范围。例如,在上述具体实施方式中所描述的各个具体技术特征,在不矛盾的情况下,可以通过任何合适的方式进行组合,为了避免不必要的重复,本申请对各种可能的组合方式不再另行说明。又例如,本申请的各种不同的实施方式之间也可以进行任意组合,只要其不违背本申请的思想,其同样应当视为本申请所公开的内容。又例如,在不冲突的前提下,本申请描述的各个实施例和/或各个实施例中的技术特征可以和现有技术任意的相互组合,组合之后得到的技术方案也应落入本申请的保护范围。
还应理解,在本申请的各种方法实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本申请实施例的实施过程构成任何限定。此外,在本申请实施例中,术语“下行”、“上行”和“侧行”用于表示信号或数据的传输方向,其中,“下行”用于表示信号或数据的传输方向为从站点发送至小区的用户设备的第一方向,“上行”用于表示信号或数据的传输方向为从小区的用户设备发送至站点的第二方向,“侧行”用于表示信号或数据的传输方向为从用户设备1发送至用户设备2的第三方向。例如,“下行信号”表示该信号的传输方向为第一方向。另外,本申请实施例中,术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系。具体地,A和/或B可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
图7为本申请实施例提供的通信装置的结构组成示意图,应用于终端设备,如图7所示,所述 通信装置700包括:
通信单元701,用于接收传输预编码矩阵指示TPMI信息;
确定单元702,用于基于所述TPMI信息,从码本中确定第一预编码矩阵;所述码本包括多个预编码矩阵;
预编码单元703,用于采用所述第一预编码矩阵对上行信息进行预编码,并发送预编码后的上行信息;
其中,所述码本中的每个预编码矩阵包括N行元素,N为大于等于2 m的整数,m为大于等于3的整数,所述N行元素满足以下至少一种特征:
第i行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第一参数确定;
第1+N/2行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第二参数确定;
i为大于等于2且小于等于N/2的整数,所述第一参数基于二进制相移键控BPSK元素或者正交相移键控QPSK元素确定,所述第二参数基于BPSK元素或者QPSK元素或者八相移键控8PSK元素确定。
在一些实施例中,所述第一参数基于二进制相移键控BPSK元素或者正交相移键控QPSK元素确定,所述第二参数基于BPSK元素或者QPSK元素或者八相移键控8PSK元素确定。
在一些实施例中,对于传输层数为1的预编码矩阵,所述N行元素满足:
所述第i行元素基于所述第一参数确定,并且所述第i+N/2行元素基于所述第一参数和所述第二参数确定。
在一些实施例中,对于传输层数为2的预编码矩阵,所述N行元素满足:
所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素基于所述第一参数确定,第1行元素对应的向量和所述第1+N/2行元素对应的向量正交,以及所述第i行元素对应的向量和所述第i+N/2行元素对应的向量正交。
在一些实施例中,对于传输层数为2的预编码矩阵,每行包括两个元素,所述N行元素满足:
所述第i行的全部元素和所述第i+N/2行的全部元素基于所述第一参数确定,并且所述第1+N/2行和所述第i+N/2行的全部元素还分别基于以下之一确定:{1,-1}、{j,-j}、{-1,1}、{-j,j}。
在一些实施例中,对于传输层数为2的预编码矩阵,每行包括两个元素,所述N行元素满足:
所述第i行的两个元素中的第一列元素基于所述第一参数确定,并且所述第i+N/2行的两个元素中的第二列元素基于所述第一参数确定。
在一些实施例中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定;在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3;其中,
所述x 1、x 2以及x 3满足以下至少一种特征:
x 1、x 2、x 3的取值均为1;
x 1、x 2、x 3中任一个为所述BPSK元素中的一个;
x 1、x 2、x 3中任一个为所述QPSK元素中的一个;
x 1为1,x 2、x 3中任一个为所述BPSK元素中的一个或所述QPSK元素中的一个;
x 2为1,x 1、x 3中任一个为所述BPSK元素中的一个或所述QPSK元素中的一个。
在一些实施例中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定;在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3;其中,所述通信单元701,还用于接收第一信息;所述第一信息用于指示x 1、x 2、x 3中任一个为所述BPSK元素中的一个或者所述QPSK元素中的一个;或者,在x 1为1时,所述第一信息用于指示x 2、x 3中任一个为所述BPSK元素中的一个或者所述QPSK元素中的一个;或者,在x 2为1时,x 1、x 3中任一个为所述BPSK元素中的一个或者所述QPSK元素中的一个。
在一些实施例中,所述确定单元702,还用于基于所述第一信息,确定所述TPMI信息的长度和/或所述码本中的预编码矩阵数量。
在一些实施例中,在N为8的情况下,所述第1+N/2行元素中的至少部分元素基于y 0确定,所述第i+N/2行元素中的至少部分元素基于y i-1确定,在i取值为2至4的情况下,y i-1对应表示为y 1、y 2以及y 3;其中,所述通信单元701,还用于接收第二信息;所述第二信息用于指示:y 0、y 1、y 2、y 3中任一个为所述BPSK元素中的一个、所述QPSK元素中的一个或者所述8PSK元素中的一个。
在一些实施例中,所述确定单元702,还用于基于所述第二信息,确定所述TPMI信息的长度和/或所述码本中的预编码矩阵数量。
在一些实施例中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定;在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3;其中,所述TPMI信息包括以下至少之一:x 1的指示信息,所述x 1的指示信息用于指示:所述BPSK元素中的一个或者所述QPSK元素中的一个;x 2的指示信息,所述x 2的指示信息用于指示:所述BPSK元素中的一个或者所述QPSK元素中的一个;x 3的指示信息,所述x 3的指示信息用于指示:所述BPSK元素中的一个或者所述QPSK元素中的一个。
在一些实施例中,在N为8的情况下,所述第1+N/2行元素中的至少部分元素基于y 0确定,所述第i+N/2行元素中的至少部分元素基于y i-1确定,在i取值为2至4的情况下,y i-1对应表示为y 1、y 2以及y 3;其中,所述TPMI信息包括以下至少之一:y 0的指示信息,所述y 0的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个;y 1的指示信息,所述y 1的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个;y 2的指示信息,所述y 2的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个;y 3的指示信息,所述y 3的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个。
在一些实施例中,在N为8的情况下,所述第5行的两个元素还基于{y 0,y 4}确定,所述第6行的两个元素还基于{y 1,y 5}确定,所述第7行的两个元素还基于{y 2,y 6}确定,所述第8行的两个元素还基于{y 3,y 7}确定;其中,所述TPMI信息还包括以下至少之一:
所述{y 0,y 4}的指示信息,所述{y 0,y 4}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一;
所述{y 1,y 5}的指示信息,所述{y 1,y 5}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一;
所述{y 2,y 6}的指示信息,所述{y 2,y 6}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一;
所述{y 3,y 7}的指示信息,所述{y 3,y 7}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一。
在一些实施例中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定,在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3,和/或,所述第1+N/2行元素中的至少部分元素基于y 0确定,所述第i+N/2行元素中的至少部分元素基于y i-1确定,在i取值为2至4的情况下,y i-1对应表示为y 1、y 2以及y 3;其中,所述通信单元701,还用于接收码本子集约束信息;所述码本子集约束信息用于指示以下至少之一:
x 1、x 2、x 3中至少一个的取值范围约束;
y 0、y 1、y 2、y 3中至少一个的取值范围约束。
在一些实施例中,在N为8的情况下,所述第5行的两个元素还基于{y 0,y 4}确定,所述第6行的两个元素还基于{y 1,y 5}确定,所述第7行的两个元素还基于{y 2,y 6}确定,所述第8行的两个元素还基于{y 3,y 7}确定;其中,所述通信单元701,还用于接收第二码本子集约束信息;所述第二码本子集约束信息用于指示:
{y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}中至少一个的取值范围约束。
在一些实施例中,所述BPSK元素包括{1,-1};
所述QPSK元素包括{1,-1,j,-j};
所述8PSK元素包括
Figure PCTCN2022079786-appb-000039
在一些实施例中,所述TPMI信息通过用于调度PUSCH的下行信令指示;所述下行信令包括高层信令或者下行控制信息DCI信令。
在一些实施例中,所述通信单元701,还用于接收秩指示RI;所述确定单元702,还用于基于所述RI,确定所述传输层数。
在一些实施例中,对于传输层数为1的预编码矩阵,所述码本中包括基于
Figure PCTCN2022079786-appb-000040
确定的所述多个预编码矩阵;x 1、x 2、x 3中任一个为BPSK元素中的一个或者QPSK元素中的一个;y 0、y 1、y 2、y 3中任一个为所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个。
在一些实施例中,对于传输层数为2的预编码矩阵,所述码本中包括基于
Figure PCTCN2022079786-appb-000041
确定的所述多个预编码矩阵;x 1、x 2、x 3中任一个为BPSK元素中的一个或者QPSK元素中的一个;{y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}中任一个为{1,-1}、{j,-j}、{-1,1}、{-j,j}之一。
在一些实施例中,对于传输层数为2的预编码矩阵,所述码本中包括基于
Figure PCTCN2022079786-appb-000042
确定的所述多个预编码矩阵;x 1、x 2、x 3中任一个为BPSK元素中的一个或者QPSK元素中的一个。
图8为本申请实施例提供的另一通信装置的结构组成示意图,应用于终端设备,如图8所示,所述通信装置800包括:
确定单元801,用于从码本中确定第一预编码矩阵;所述码本包括多个预编码矩阵;
通信单元802,用于发送与所述第一预编码矩阵对应的传输预编码矩阵指示TPMI信息;
所述通信单元802,还用于接收预编码后的上行信息;所述预编码后的上行信息是采用所述第一预编码矩阵对上行信息进行预编码确定的;
其中,所述码本中的每个预编码矩阵包括N行元素,N为大于等于2 m的整数,m为大于等于3的整数,所述N行元素满足以下至少一种特征:
第i行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第一参数确定;
第1+N/2行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第二参数确定;
i为大于等于2且小于等于N/2的整数,所述第一参数基于二进制相移键控BPSK元素或者正交相移键控QPSK元素确定,所述第二参数基于BPSK元素或者QPSK元素或者八相移键控8PSK元素确定。
在一些实施例中,对于传输层数为1的预编码矩阵,所述N行元素满足:
所述第i行元素基于所述第一参数确定,并且所述第i+N/2行元素基于所述第一参数和所述第二参数确定。
在一些实施例中,对于传输层数为2的预编码矩阵,所述N行元素满足:
所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素基于所述第一参数确定,第1行元素对应的向量和所述第1+N/2行元素对应的向量正交,以及所述第i行元素对应的向量和所述第i+N/2行元素对应的向量正交。
在一些实施例中,对于传输层数为2的预编码矩阵,每行包括两个元素,所述N行元素满足:
所述第i行的全部元素和所述第i+N/2行的全部元素基于所述第一参数确定,并且所述第1+N/2行和所述第i+N/2行的全部元素还分别基于以下之一确定:{1,-1}、{j,-j}、{-1,1}、{-j,j}。
在一些实施例中,对于传输层数为2的预编码矩阵,每行包括两个元素,所述N行元素满足:
所述第i行的两个元素中的第一列元素基于所述第一参数确定,并且所述第i+N/2行的两个元素 中的第二列元素基于所述第一参数确定。
在一些实施例中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定;在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3;其中,所述x 1、x 2以及x 3满足以下至少一种特征:x 1、x 2、x 3的取值均为1;x 1、x 2、x 3中任一个为所述BPSK元素中的一个;x 1、x 2、x 3中任一个为所述QPSK元素中的一个;x 1为1,x 2、x 3中任一个为所述BPSK元素中的一个或所述QPSK元素中的一个;x 2为1,x 1、x 3中任一个为所述BPSK元素中的一个或所述QPSK元素中的一个。
在一些实施例中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定;在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3;其中,所述通信单元802,还用于发送第一信息;所述第一信息用于指示x 1、x 2、x 3中任一个为所述BPSK元素中的一个或者所述QPSK元素中的一个;或者,在x 1为1时,所述第一信息用于指示x 2、x 3中任一个为所述BPSK元素中的一个或者所述QPSK元素中的一个;或者,在x 2为1时,x 1、x 3中任一个为所述BPSK元素中的一个或者所述QPSK元素中的一个。
在一些实施例中,所述确定单元801,还用于基于所述第一信息,确定所述TPMI信息的长度和/或所述码本中的预编码矩阵数量。
在一些实施例中,在N为8的情况下,所述第1+N/2行元素中的至少部分元素基于y 0确定,所述第i+N/2行元素中的至少部分元素基于y i-1确定,在i取值为2至4的情况下,y i-1对应表示为y 1、y 2以及y 3;其中,所述通信单元802,还用于发送第二信息;所述第二信息用于指示:y 0、y 1、y 2、y 3中任一个为所述BPSK元素中的一个、所述QPSK元素中的一个或者所述8PSK元素中的一个。
在一些实施例中,所述确定单元801,还用于基于所述第二信息,确定所述TPMI信息的长度和/或所述码本中的预编码矩阵数量。
在一些实施例中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定;在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3;其中,所述TPMI信息包括以下至少之一:x 1的指示信息,所述x 1的指示信息用于指示:所述BPSK元素中的一个或者所述QPSK元素中的一个;x 2的指示信息,所述x 2的指示信息用于指示:所述BPSK元素中的一个或者所述QPSK元素中的一个;x 3的指示信息,所述x 3的指示信息用于指示:所述BPSK元素中的一个或者所述QPSK元素中的一个。
在一些实施例中,在N为8的情况下,所述第1+N/2行元素中的至少部分元素基于y 0确定,所述第i+N/2行元素中的至少部分元素基于y i-1确定,在i取值为2至4的情况下,y i-1对应表示为y 1、y 2以及y 3;其中,所述TPMI信息包括以下至少之一:y 0的指示信息,所述y 0的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个;y 1的指示信息,所述y 1的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个;y 2的指示信息,所述y 2的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个;y 3的指示信息,所述y 3的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个。
在一些实施例中,在N为8的情况下,所述第5行的两个元素还基于{y 0,y 4}确定,所述第6行的两个元素还基于{y 1,y 5}确定,所述第7行的两个元素还基于{y 2,y 6}确定,所述第8行的两个元素还基于{y 3,y 7}确定;其中,所述TPMI信息还包括以下至少之一:所述{y 0,y 4}的指示信息,所述{y 0,y 4}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一;所述{y 1,y 5}的指示信息,所述{y 1,y 5}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一;所述{y 2,y 6}的指示信息,所述{y 2,y 6}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一;所述{y 3,y 7}的指示信息,所述{y 3,y 7}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一。
在一些实施例中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定,在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3,和/或,所述第1+N/2行元素中的至少部分元素基于y 0确定,所述第i+N/2行元素中的至少部分元素基于y i-1确定,在i取值为2至4的情况下,y i-1对应表示为y 1、y 2以及y 3;其中,所述通信单元802,还用于发送码本子集约束信息;所述码本子集约束信息用于指示以下至少之一:x 1、x 2、x 3中 至少一个的取值范围约束;y 0、y 1、y 2、y 3中至少一个的取值范围约束。
在一些实施例中,在N为8的情况下,所述第5行的两个元素还基于{y 0,y 4}确定,所述第6行的两个元素还基于{y 1,y 5}确定,所述第7行的两个元素还基于{y 2,y 6}确定,所述第8行的两个元素还基于{y 3,y 7}确定;其中,所述通信单元802,还用于发送第二码本子集约束信息;所述第二码本子集约束信息用于指示:{y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}中至少一个的取值范围约束。
在一些实施例中,所述BPSK元素包括{1,-1};所述QPSK元素包括{1,-1,j,-j};所述8PSK元素包括
Figure PCTCN2022079786-appb-000043
在一些实施例中,所述TPMI信息通过用于调度所述PUSCH的下行信令指示;所述下行信令包括高层信令或者下行控制信息DCI信令。
在一些实施例中,所述通信单元802,还用于发送秩指示RI;所述RI用于确定所述传输层数。
在一些实施例中,对于传输层数为1的预编码矩阵,所述码本中包括基于
Figure PCTCN2022079786-appb-000044
确定的所述多个预编码矩阵;x 1、x 2、x 3中任一个为BPSK元素中的一个或者QPSK元素中的一个;y 0、y 1、y 2、y 3中任一个为所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个。
在一些实施例中,对于传输层数为2的预编码矩阵,所述码本中包括基于
Figure PCTCN2022079786-appb-000045
确定的所述多个预编码矩阵;x 1、x 2、x 3中任一个为BPSK元素中的一个或者QPSK元素中的一个;{y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}中任一个为{1,-1}、{j,-j}、{-1,1}、{-j,j}之一。
在一些实施例中,对于传输层数为2的预编码矩阵,所述码本中包括基于
Figure PCTCN2022079786-appb-000046
确定的所述多个预编码矩阵;x 1、x 2、x 3中任一个为BPSK元素中的一个或者QPSK元素中的一个。
本领域技术人员应当理解,本申请实施例的上述通信装置的相关描述可以参照本申请实施例的通信方法的相关描述进行理解。
图9是本申请实施例提供的一种通信设备示意性结构图。该通信设备900可以终端设备或网络设备。图9所示的通信设备900可以包括处理器910和存储器920,所述存储器920存储有可在处理器910上运行的计算机程序,所述处理器910执行所述程序时实现上述任一实施例中的通信方法。
可选地,存储器920可以是独立于处理器910的一个单独的器件,也可以集成在处理器910中。
在一些实施例中,如图9所示,通信设备900还可以包括收发器930,处理器910可以控制该收发器930与其他设备进行通信,具体地,可以向其他设备发送信息或数据,或接收其他设备发送的信息或数据。可选地,收发器930可以包括发射机和接收机。收发器930还可以进一步包括天线,天线的数量可以为一个或多个。
在一些实施例中,该通信设备900具体可为本申请实施例的网络设备或终端设备,并且该通信设备900可以实现本申请实施例的各个方法中由网络设备或终端设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机存储介质,所述计算机存储介质存储有一个或者多个程序, 所述一个或者多个程序可被一个或者多个处理器执行,以实现本申请任一实施例中的通信方法。
在一些实施例中,该计算机可读存储介质可应用于本申请实施例中的终端设备或网络设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
图10是本申请实施例的芯片的示意性结构图。图10所示的芯片1000包括处理器1010,处理器1010用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行本申请实施例中的方法。在一些实施例中,如图10所示,芯片1000还可以包括存储器1020。其中,处理器1010可以从存储器1020中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器1020可以是独立于处理器1010的一个单独的器件,也可以集成在处理器1010中。
在一些实施例中,该芯片1000还可以包括输入接口1030。其中,处理器1010可以控制该输入接口1030与其他设备或芯片进行通信,具体地,可以获取其他设备或芯片发送的信息或数据。
在一些实施例中,该芯片1000还可以包括输出接口1040。其中,处理器1010可以控制该输出接口1040与其他设备或芯片进行通信,具体地,可以向其他设备或芯片输出信息或数据。
在一些实施例中,该芯片可应用于本申请实施例中的网络设备,并且该芯片可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
在一些实施例中,该芯片可应用于本申请实施例中的终端设备,并且该芯片可以实现本申请实施例的各个方法中由终端设备实现的相应流程,为了简洁,在此不再赘述。应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
本申请实施例还提供了一种计算机程序产品,所述计算机程序产品包括计算机存储介质,所述计算机存储介质存储计算机程序,所述计算机程序包括能够由至少一个处理器执行的指令,当所述指令由所述至少一个处理器执行时实现本申请任一实施例中的通信方法。
在一些实施例中,该计算机程序产品可应用于本申请实施例中的终端设备或网络设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,本申请实施例中的计算机程序产品在另一些实施例中也可以称为软件产品。
本申请实施例还提供了一种计算机程序,所述计算机程序使得计算机执行本申请任一实施例中的通信方法。
在一些实施例中,该计算机程序可应用于本申请实施例中的终端设备或网络设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例的处理器、通信装置或者芯片可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器、通信装置或者芯片可以包括以下任一个或多个的集成:通用处理器、特定用途集成电路(Application Specific Integrated Circuit,ASIC)、数字信号处理器(Digital Signal Processor,DSP)、数字信号处理装置(Digital Signal Processing Device,DSPD)、可编程逻辑装置(Programmable Logic Device,PLD)、现场可编程门阵列(Field Programmable Gate Array,FPGA)、中央处理器(Central Processing Unit,CPU)、图形处理器(Graphics Processing Unit,GPU)、嵌入式神经网络处理器(neural-network processing units,NPU)、控制器、微控制器、微处理器、可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
可以理解,本申请实施例中的存储器或计算机存储介质可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous  DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)。应注意,本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解,上述存储器或计算机存储介质为示例性但不是限制性说明,例如,本申请实施例中的存储器还可以是静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synch link DRAM,SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)等等。也就是说,本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,)ROM、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
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所述以权利要求的保护范围为准。

Claims (50)

  1. 一种通信方法,所述方法包括:
    终端设备接收传输预编码矩阵指示TPMI信息;
    所述终端设备基于所述TPMI信息,从码本中确定第一预编码矩阵;所述码本包括多个预编码矩阵;
    所述终端设备采用所述第一预编码矩阵对上行信息进行预编码,并发送预编码后的上行信息;
    其中,所述码本中的每个预编码矩阵包括N行元素,N为大于等于2 m的整数,m为大于等于3的整数,所述N行元素满足以下至少一种特征:
    第i行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第一参数确定;
    第1+N/2行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第二参数确定;
    i为大于等于2且小于等于N/2的整数,所述第一参数基于二进制相移键控BPSK元素或者正交相移键控QPSK元素确定,所述第二参数基于BPSK元素或者QPSK元素或者八相移键控8PSK元素确定。
  2. 根据权利要求1所述的方法,其中,对于传输层数为1的预编码矩阵,所述N行元素满足:
    所述第i行元素基于所述第一参数确定,并且所述第i+N/2行元素基于所述第一参数和所述第二参数确定。
  3. 根据权利要求1所述的方法,其中,对于传输层数为2的预编码矩阵,所述N行元素满足:
    所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素基于所述第一参数确定,第1行元素对应的向量和所述第1+N/2行元素对应的向量正交,以及所述第i行元素对应的向量和所述第i+N/2行元素对应的向量正交。
  4. 根据权利要求1或3所述的方法,其中,对于传输层数为2的预编码矩阵,每行包括两个元素,所述N行元素满足:
    所述第i行的全部元素和所述第i+N/2行的全部元素基于所述第一参数确定,并且所述第1+N/2行和所述第i+N/2行的全部元素还分别基于以下之一确定:{1,-1}、{j,-j}、{-1,1}、{-j,j}。
  5. 根据权利要求1或3所述的方法,其中,对于传输层数为2的预编码矩阵,每行包括两个元素,所述N行元素满足:
    所述第i行的两个元素中的第一列元素基于所述第一参数确定,并且所述第i+N/2行的两个元素中的第二列元素基于所述第一参数确定。
  6. 根据权利要求1至5任一项所述的方法,其中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定;在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3;其中,
    所述x 1、x 2以及x 3满足以下至少一种特征:
    x 1、x 2、x 3的取值均为1;
    x 1、x 2、x 3中任一个为所述BPSK元素中的一个;
    x 1、x 2、x 3中任一个为所述QPSK元素中的一个;
    x 1为1,x 2、x 3中任一个为所述BPSK元素中的一个或所述QPSK元素中的一个;
    x 2为1,x 1、x 3中任一个为所述BPSK元素中的一个或所述QPSK元素中的一个。
  7. 根据权利要求1至6任一项所述的方法,其中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定;在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3;其中,
    所述方法还包括:
    所述终端设备接收第一信息;所述第一信息用于指示x 1、x 2、x 3中任一个为所述BPSK元素中的一个或者所述QPSK元素中的一个;或者,在x 1为1时,所述第一信息用于指示x 2、x 3中任一个为所述BPSK元素中的一个或者所述QPSK元素中的一个;或者,在x 2为1时,x 1、x 3中任一个为所述BPSK元素中的一个或者所述QPSK元素中的一个。
  8. 根据权利要求7所述的方法,其中,所述方法还包括:
    所述终端设备基于所述第一信息,确定所述TPMI信息的长度和/或所述码本中的预编码矩阵数 量。
  9. 根据权利要求1至8任一项所述的方法,其中,在N为8的情况下,所述第1+N/2行元素中的至少部分元素基于y 0确定,所述第i+N/2行元素中的至少部分元素基于y i-1确定,在i取值为2至4的情况下,y i-1对应表示为y 1、y 2以及y 3;其中,
    所述方法还包括:
    所述终端设备接收第二信息;所述第二信息用于指示:y 0、y 1、y 2、y 3中任一个为所述BPSK元素中的一个、所述QPSK元素中的一个或者所述8PSK元素中的一个。
  10. 根据权利要求9所述的方法,其中,所述方法还包括:
    所述终端设备基于所述第二信息,确定所述TPMI信息的长度和/或所述码本中的预编码矩阵数量。
  11. 根据权利要求1至10任一项所述的方法,其中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定;在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3;其中,
    所述TPMI信息包括以下至少之一:
    x 1的指示信息,所述x 1的指示信息用于指示:所述BPSK元素中的一个或者所述QPSK元素中的一个;
    x 2的指示信息,所述x 2的指示信息用于指示:所述BPSK元素中的一个或者所述QPSK元素中的一个;
    x 3的指示信息,所述x 3的指示信息用于指示:所述BPSK元素中的一个或者所述QPSK元素中的一个。
  12. 根据权利要求1至11任一项所述的方法,其中,在N为8的情况下,所述第1+N/2行元素中的至少部分元素基于y 0确定,所述第i+N/2行元素中的至少部分元素基于y i-1确定,在i取值为2至4的情况下,y i-1对应表示为y 1、y 2以及y 3;其中,
    所述TPMI信息包括以下至少之一:
    y 0的指示信息,所述y 0的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个;
    y 1的指示信息,所述y 1的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个;
    y 2的指示信息,所述y 2的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个;
    y 3的指示信息,所述y 3的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个。
  13. 根据权利要求4所述的方法,其中,在N为8的情况下,所述第5行的两个元素还基于{y 0,y 4}确定,所述第6行的两个元素还基于{y 1,y 5}确定,所述第7行的两个元素还基于{y 2,y 6}确定,所述第8行的两个元素还基于{y 3,y 7}确定;其中,
    所述TPMI信息还包括以下至少之一:
    所述{y 0,y 4}的指示信息,所述{y 0,y 4}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一;
    所述{y 1,y 5}的指示信息,所述{y 1,y 5}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一;
    所述{y 2,y 6}的指示信息,所述{y 2,y 6}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一;
    所述{y 3,y 7}的指示信息,所述{y 3,y 7}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一。
  14. 根据权利要求1至13任一项所述的方法,其中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定,在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3,和/或,所述第1+N/2行元素中的至少部分元素基于y 0确定,所述第i+N/2行元素中的至少部分元素基于y i-1确定,在i取值为2至4的情况下,y i-1对应表示为y 1、y 2以及y 3;其中,
    所述方法还包括:
    所述终端设备接收码本子集约束信息;所述码本子集约束信息用于指示以下至少之一:
    x 1、x 2、x 3中至少一个的取值范围约束;
    y 0、y 1、y 2、y 3中至少一个的取值范围约束。
  15. 根据权利要求4或13所述的方法,其中,在N为8的情况下,所述第5行的两个元素还基于{y 0,y 4}确定,所述第6行的两个元素还基于{y 1,y 5}确定,所述第7行的两个元素还基于{y 2,y 6}确定,所述第8行的两个元素还基于{y 3,y 7}确定;其中,
    所述方法还包括:
    所述终端设备接收第二码本子集约束信息;所述第二码本子集约束信息用于指示:
    {y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}中至少一个的取值范围约束。
  16. 根据权利要求1至15任一项所述的方法,其中,
    所述BPSK元素包括{1,-1};
    所述QPSK元素包括{1,-1,j,-j};
    所述8PSK元素包括
    Figure PCTCN2022079786-appb-100001
  17. 根据权利要求1至16任一项所述的方法,其中,所述TPMI信息通过用于调度PUSCH的下行信令指示;所述下行信令包括高层信令或者下行控制信息DCI信令。
  18. 根据权利要求1至17任一项所述的方法,其中,所述方法还包括:
    终端设备接收秩指示RI;
    所述终端设备基于所述RI,确定所述传输层数。
  19. 根据权利要求1或2所述的方法,其中,
    对于传输层数为1的预编码矩阵,所述码本中包括基于
    Figure PCTCN2022079786-appb-100002
    确定的所述多个预编码矩阵;x 1、x 2、x 3中任一个为BPSK元素中的一个或者QPSK元素中的一个;y 0、y 1、y 2、y 3中任一个为所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个。
  20. 根据权利要求1、3或4所述的方法,其中,
    对于传输层数为2的预编码矩阵,所述码本中包括基于
    Figure PCTCN2022079786-appb-100003
    确定的所述多个预编码矩阵;x 1、x 2、x 3中任一个为BPSK元素中的一个或者QPSK元素中的一个;{y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}中任一个为{1,-1}、{j,-j}、{-1,1}、{-j,j}之一。
  21. 根据权利要求1、3或5所述的方法,其中,
    对于传输层数为2的预编码矩阵,所述码本中包括基于
    Figure PCTCN2022079786-appb-100004
    确定的所述多个预编码矩阵;x 1、x 2、x 3中任一个为BPSK元素中的一个或者QPSK元素中的一个。
  22. 一种通信方法,所述方法包括:
    网络设备从码本中确定第一预编码矩阵;所述码本包括多个预编码矩阵;
    所述网络设备发送与所述第一预编码矩阵对应的传输预编码矩阵指示TPMI信息;
    所述网络设备接收预编码后的上行信息;所述预编码后的上行信息是采用所述第一预编码矩阵 对上行信息进行预编码确定的;
    其中,所述码本中的每个预编码矩阵包括N行元素,N为大于等于2 m的整数,m为大于等于3的整数,所述N行元素满足以下至少一种特征:
    第i行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第一参数确定;
    第1+N/2行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第二参数确定;
    i为大于等于2且小于等于N/2的整数,所述第一参数基于二进制相移键控BPSK元素或者正交相移键控QPSK元素确定,所述第二参数基于BPSK元素或者QPSK元素或者八相移键控8PSK元素确定。
  23. 根据权利要求22所述的方法,其中,对于传输层数为1的预编码矩阵,所述N行元素满足:
    所述第i行元素基于所述第一参数确定,并且所述第i+N/2行元素基于所述第一参数和所述第二参数确定。
  24. 根据权利要求22所述的方法,其中,对于传输层数为2的预编码矩阵,所述N行元素满足:
    所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素基于所述第一参数确定,第1行元素对应的向量和所述第1+N/2行元素对应的向量正交,以及所述第i行元素对应的向量和所述第i+N/2行元素对应的向量正交。
  25. 根据权利要求22或24所述的方法,其中,对于传输层数为2的预编码矩阵,每行包括两个元素,所述N行元素满足:
    所述第i行的全部元素和所述第i+N/2行的全部元素基于所述第一参数确定,并且所述第1+N/2行和所述第i+N/2行的全部元素还分别基于以下之一确定:{1,-1}、{j,-j}、{-1,1}、{-j,j}。
  26. 根据权利要求22或24所述的方法,其中,对于传输层数为2的预编码矩阵,每行包括两个元素,所述N行元素满足:
    所述第i行的两个元素中的第一列元素基于所述第一参数确定,并且所述第i+N/2行的两个元素中的第二列元素基于所述第一参数确定。
  27. 根据权利要求22或26所述的方法,其中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定;在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3;其中,
    所述x 1、x 2以及x 3满足以下至少一种特征:
    x 1、x 2、x 3的取值均为1;
    x 1、x 2、x 3中任一个为所述BPSK元素中的一个;
    x 1、x 2、x 3中任一个为所述QPSK元素中的一个;
    x 1为1,x 2、x 3中任一个为所述BPSK元素中的一个或所述QPSK元素中的一个;
    x 2为1,x 1、x 3中任一个为所述BPSK元素中的一个或所述QPSK元素中的一个。
  28. 根据权利要求22或27所述的方法,其中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定;在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3;其中,
    所述方法还包括:
    所述网络设备发送第一信息;所述第一信息用于指示x 1、x 2、x 3中任一个为所述BPSK元素中的一个或者所述QPSK元素中的一个;或者,在x 1为1时,所述第一信息用于指示x 2、x 3中任一个为所述BPSK元素中的一个或者所述QPSK元素中的一个;或者,在x 2为1时,x 1、x 3中任一个为所述BPSK元素中的一个或者所述QPSK元素中的一个。
  29. 根据权利要求28所述的方法,其中,所述方法还包括:
    所述网络设备基于所述第一信息,确定所述TPMI信息的长度和/或所述码本中的预编码矩阵数量。
  30. 根据权利要求22至29任一项所述的方法,其中,在N为8的情况下,所述第1+N/2行元素中的至少部分元素基于y 0确定,所述第i+N/2行元素中的至少部分元素基于y i-1确定,在i取值为2至4的情况下,y i-1对应表示为y 1、y 2以及y 3;其中,
    所述方法还包括:
    所述网络设备发送第二信息;所述第二信息用于指示:y 0、y 1、y 2、y 3中任一个为所述BPSK元素中的一个、所述QPSK元素中的一个或者所述8PSK元素中的一个。
  31. 根据权利要求30所述的方法,其中,所述方法还包括:
    所述网络设备基于所述第二信息,确定所述TPMI信息的长度和/或所述码本中的预编码矩阵数量。
  32. 根据权利要求22至31任一项所述的方法,其中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定;在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3;其中,
    所述TPMI信息包括以下至少之一:
    x 1的指示信息,所述x 1的指示信息用于指示:所述BPSK元素中的一个或者所述QPSK元素中的一个;
    x 2的指示信息,所述x 2的指示信息用于指示:所述BPSK元素中的一个或者所述QPSK元素中的一个;
    x 3的指示信息,所述x 3的指示信息用于指示:所述BPSK元素中的一个或者所述QPSK元素中的一个。
  33. 根据权利要求22至32任一项所述的方法,其中,在N为8的情况下,所述第1+N/2行元素中的至少部分元素基于y 0确定,所述第i+N/2行元素中的至少部分元素基于y i-1确定,在i取值为2至4的情况下,y i-1对应表示为y 1、y 2以及y 3;其中,
    所述TPMI信息包括以下至少之一:
    y 0的指示信息,所述y 0的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个;
    y 1的指示信息,所述y 1的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个;
    y 2的指示信息,所述y 2的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个;
    y 3的指示信息,所述y 3的指示信息用于指示:所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个。
  34. 根据权利要求25所述的方法,其中,在N为8的情况下,所述第5行的两个元素还基于{y 0,y 4}确定,所述第6行的两个元素还基于{y 1,y 5}确定,所述第7行的两个元素还基于{y 2,y 6}确定,所述第8行的两个元素还基于{y 3,y 7}确定;其中,
    所述TPMI信息还包括以下至少之一:
    所述{y 0,y 4}的指示信息,所述{y 0,y 4}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一;
    所述{y 1,y 5}的指示信息,所述{y 1,y 5}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一;
    所述{y 2,y 6}的指示信息,所述{y 2,y 6}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一;
    所述{y 3,y 7}的指示信息,所述{y 3,y 7}的指示信息用于指示{1,-1}、{j,-j}、{-1,1}、{-j,j}之一。
  35. 根据权利要求22至34任一项所述的方法,其中,在N为8的情况下,所述第i行元素中的至少部分元素和所述第i+N/2行元素中的至少部分元素均基于x i-1确定,在i取值为2至4的情况下,x i-1对应表示为x 1、x 2以及x 3,和/或,所述第1+N/2行元素中的至少部分元素基于y 0确定,所述第i+N/2行元素中的至少部分元素基于y i-1确定,在i取值为2至4的情况下,y i-1对应表示为y 1、y 2以及y 3;其中,
    所述方法还包括:
    所述网络设备发送码本子集约束信息;所述码本子集约束信息用于指示以下至少之一:
    x 1、x 2、x 3中至少一个的取值范围约束;
    y 0、y 1、y 2、y 3中至少一个的取值范围约束。
  36. 根据权利要求25或34所述的方法,其中,在N为8的情况下,所述第5行的两个元素还基于{y 0,y 4}确定,所述第6行的两个元素还基于{y 1,y 5}确定,所述第7行的两个元素还基于{y 2,y 6}确定,所述第8行的两个元素还基于{y 3,y 7}确定;其中,
    所述方法还包括:
    所述网络设备发送第二码本子集约束信息;所述第二码本子集约束信息用于指示:
    {y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}中至少一个的取值范围约束。
  37. 根据权利要求22至36任一项所述的方法,其中,
    所述BPSK元素包括{1,-1};
    所述QPSK元素包括{1,-1,j,-j};
    所述8PSK元素包括
    Figure PCTCN2022079786-appb-100005
  38. 根据权利要求22至37任一项所述的方法,其中,所述TPMI信息通过用于调度所述PUSCH的下行信令指示;所述下行信令包括高层信令或者下行控制信息DCI信令。
  39. 根据权利要求22至38任一项所述的方法,其中,所述方法还包括:
    所述网络设备发送秩指示RI;所述RI用于确定所述传输层数。
  40. 根据权利要求22或23所述的方法,其中,
    对于传输层数为1的预编码矩阵,所述码本中包括基于
    Figure PCTCN2022079786-appb-100006
    确定的所述多个预编码矩阵;x 1、x 2、x 3中任一个为BPSK元素中的一个或者QPSK元素中的一个;y 0、y 1、y 2、y 3中任一个为所述BPSK元素中的一个、所述QPSK元素中的一个或者8PSK元素中的一个。
  41. 根据权利要求22、24或25所述的方法,其中,
    对于传输层数为2的预编码矩阵,所述码本中包括基于
    Figure PCTCN2022079786-appb-100007
    确定的所述多个预编码矩阵;x 1、x 2、x 3中任一个为BPSK元素中的一个或者QPSK元素中的一个;{y 0,y 4}、{y 1,y 5}、{y 2,y 6}、{y 3,y 7}中任一个为{1,-1}、{j,-j}、{-1,1}、{-j,j}之一。
  42. 根据权利要求22、24或26所述的方法,其中,
    对于传输层数为2的预编码矩阵,所述码本中包括基于
    Figure PCTCN2022079786-appb-100008
    确定的所述多个预编码矩阵;x 1、x 2、x 3中任一个为BPSK元素中的一个或者QPSK元素中的一个。
  43. 一种通信装置,所述通信装置包括:
    通信单元,用于接收传输预编码矩阵指示TPMI信息;
    确定单元,用于基于所述TPMI信息,从码本中确定第一预编码矩阵;所述码本包括多个预编码矩阵;
    预编码单元,用于采用所述第一预编码矩阵对上行信息进行预编码,并发送预编码后的上行信息;
    其中,所述码本中的每个预编码矩阵包括N行元素,N为大于等于2 m的整数,m为大于等于3的整数,所述N行元素满足以下至少一种特征:
    第i行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第一参数确定;
    第1+N/2行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第二参数确定;
    i为大于等于2且小于等于N/2的整数,所述第一参数基于二进制相移键控BPSK元素或者正交相移键控QPSK元素确定,所述第二参数基于BPSK元素或者QPSK元素或者八相移键控8PSK元素确定。
  44. 一种通信装置,所述通信装置包括:
    确定单元,用于从码本中确定第一预编码矩阵;所述码本包括多个预编码矩阵;
    通信单元,用于发送与所述第一预编码矩阵对应的传输预编码矩阵指示TPMI信息;
    所述通信单元,还用于接收预编码后的上行信息;所述预编码后的上行信息是采用所述第一预编码矩阵对上行信息进行预编码确定的;
    其中,所述码本中的每个预编码矩阵包括N行元素,N为大于等于2 m的整数,m为大于等于3的整数,所述N行元素满足以下至少一种特征:
    第i行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第一参数确定;
    第1+N/2行元素中的至少部分元素和第i+N/2行元素中的至少部分元素基于第二参数确定;
    i为大于等于2且小于等于N/2的整数,所述第一参数基于二进制相移键控BPSK元素或者正交相移键控QPSK元素确定,所述第二参数基于BPSK元素或者QPSK元素或者八相移键控8PSK元素确定。
  45. 一种终端设备,包括:处理器和存储器,
    所述存储器存储有可在处理器上运行的计算机程序,
    所述处理器执行所述程序时实现权利要求1至21任一项所述方法。
  46. 一种网络设备,包括:处理器和存储器,
    所述存储器存储有可在处理器上运行的计算机程序,
    所述处理器执行所述程序时实现权利要求22至42任一项所述方法。
  47. 一种计算机存储介质,所述计算机存储介质存储有一个或者多个程序,所述一个或者多个程序可被一个或者多个处理器执行,以实现权利要求1至21任一项或者22至42任一项所述方法。
  48. 一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求1至21任一项或者22至42任一项所述方法。
  49. 一种计算机程序产品,所述计算机程序产品包括计算机存储介质,所述计算机存储介质存储计算机程序,所述计算机程序包括能够由至少一个处理器执行的指令,当所述指令由所述至少一个处理器执行时实现权利要求1至21任一项或者22至42任一项所述方法。
  50. 一种计算机程序,所述计算机程序使得计算机执行如权利要求1至21任一项或者22至42任一项所述方法。
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