WO2022257042A1 - Procédé de création de rapport de livre de codes, dispositif terminal et dispositif de réseau - Google Patents

Procédé de création de rapport de livre de codes, dispositif terminal et dispositif de réseau Download PDF

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Publication number
WO2022257042A1
WO2022257042A1 PCT/CN2021/099133 CN2021099133W WO2022257042A1 WO 2022257042 A1 WO2022257042 A1 WO 2022257042A1 CN 2021099133 W CN2021099133 W CN 2021099133W WO 2022257042 A1 WO2022257042 A1 WO 2022257042A1
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Prior art keywords
frequency
domain basis
terminal device
csi
codebook
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PCT/CN2021/099133
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English (en)
Chinese (zh)
Inventor
黄莹沛
陈文洪
史志华
方昀
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Oppo广东移动通信有限公司
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Priority to CN202180098193.7A priority Critical patent/CN117296366A/zh
Priority to PCT/CN2021/099133 priority patent/WO2022257042A1/fr
Publication of WO2022257042A1 publication Critical patent/WO2022257042A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • the embodiment of the present application relates to the communication field, and in particular to a method for reporting a codebook, a terminal device, and a network device.
  • the terminal device can report channel state information (Channel State Information, CSI) to the network device, and the CSI can include frequency domain-space codebook related information, for example, frequency domain-space codebook
  • CSI Channel State Information
  • the codebook overhead is relatively large, so how to reduce the codebook overhead is an urgent problem to be solved.
  • the present application provides a method for reporting a codebook, a terminal device and a network device, which are beneficial to reducing codebook overhead.
  • a method for reporting a codebook including:
  • the terminal device reports channel state information CSI to the network device, where the CSI includes at least one of the following information:
  • Amplitude indication information and phase indication information of non-zero coefficients are Amplitude indication information and phase indication information of non-zero coefficients
  • a method for reporting a codebook including:
  • the network device receives the channel state information CSI reported by the terminal device, where the CSI includes at least one of the following information:
  • a terminal device configured to execute the method in the foregoing first aspect or various implementation manners thereof.
  • the terminal device includes a functional module for executing the method in the above first aspect or its various implementation manners.
  • a network device configured to execute the method in the foregoing second aspect or various implementation manners thereof.
  • the network device includes a functional module for executing the method in the above second aspect or each implementation manner thereof.
  • a terminal device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above first aspect or its various implementations.
  • a sixth aspect provides a network device, including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above second aspect or its various implementations.
  • a chip is provided for implementing any one of the above first aspect to the second aspect or the method in each implementation manner thereof.
  • the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the device executes any one of the above-mentioned first to second aspects or any of the implementations thereof. method.
  • a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner thereof.
  • a ninth aspect provides a computer program product, including computer program instructions, the computer program instructions cause a computer to execute any one of the above first to second aspects or the method in each implementation manner.
  • a computer program which, when running on a computer, causes the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner.
  • the terminal device considers the combination of channel space and delay by reporting the frequency domain basis vector, the strongest coefficient, the magnitude indication information and phase indication information of the non-zero coefficient and the bit map to the network device distribution, which is beneficial to reduce the overhead of the codebook.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • Fig. 2 is a schematic interaction diagram of a codebook reporting method provided according to an embodiment of the present application.
  • Fig. 3 is a schematic diagram of priorities of frequency-domain basis vectors according to an embodiment of the present application.
  • Fig. 4 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.
  • Fig. 5 is a schematic block diagram of a network device provided according to an embodiment of the present application.
  • Fig. 6 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
  • Fig. 7 is a schematic block diagram of a chip provided according to an embodiment of the present application.
  • Fig. 8 is a schematic block diagram of a communication system provided according to an embodiment of the present application.
  • the technical solution of the embodiment of the present application can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, code division multiple access (Code Division Multiple Access, CDMA) system, broadband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) on unlicensed spectrum unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunications System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.
  • GSM Global System of Mobile
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • the communication system in the embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, may also be applied to a dual connectivity (Dual Connectivity, DC) scenario, and may also be applied to an independent (Standalone, SA) deployment Web scene.
  • Carrier Aggregation, CA Carrier Aggregation
  • DC Dual Connectivity
  • SA independent deployment Web scene
  • the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered as non-shared spectrum.
  • the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, wherein the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • user equipment User Equipment, UE
  • access terminal user unit
  • user station mobile station
  • mobile station mobile station
  • remote station remote terminal
  • mobile device user terminal
  • terminal wireless communication device
  • wireless communication device user agent or user device
  • the terminal device can be a station (STATION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, next-generation communication systems such as terminal devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.
  • PLMN Public Land Mobile Network
  • the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons and satellites) superior).
  • the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, or wireless terminal equipment in smart home.
  • a virtual reality (Virtual Reality, VR) terminal device an augmented reality (Augmented Reality, AR) terminal Equipment
  • wireless terminal equipment in industrial control wireless terminal equipment in self driving
  • wireless terminal equipment in remote medical wireless terminal equipment in smart grid
  • wireless terminal equipment in transportation safety wireless terminal equipment in smart city, or wireless terminal equipment in smart home.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.
  • the network device may be a device for communicating with the mobile device, and the network device may be an access point (Access Point, AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA , or a base station (NodeB, NB) in WCDMA, or an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and an NR network
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • Evolutional Node B, eNB or eNodeB evolved base station
  • LTE Long Term Evolutional Node B, eNB or eNodeB
  • gNB network equipment in the network or the network equipment in the future evolved PLMN network or the network equipment in the NTN network, etc.
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network equipment may be a satellite or a balloon station.
  • the satellite can be a low earth orbit (low earth orbit, LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous earth orbit (geosynchronous earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite. ) Satellite etc.
  • the network device may also be a base station installed on land, water, and other locations.
  • the network device may provide services for a cell, and the terminal device communicates with the network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, a cell corresponding to a base station), the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (Small cell), and the small cell here may include: a metro cell (Metro cell), a micro cell (Micro cell), a pico cell ( Pico cell), Femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the transmission resources for example, frequency domain resources, or spectrum resources
  • the cell may be a network device (
  • the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (Small cell)
  • the small cell here may include: a metro cell (Metro cell), a micro cell (Micro
  • the communication system 100 may include a network device 110, and the network device 110 may be a device for communicating with a terminal device 120 (or called a communication terminal, terminal).
  • the network device 110 can provide communication coverage for a specific geographical area, and can communicate with terminal devices located in the coverage area.
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. This application The embodiment does not limit this.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.
  • a device with a communication function in the network/system in the embodiment of the present application may be referred to as a communication device.
  • the communication equipment may include a network equipment 110 and a terminal equipment 120 with communication functions.
  • the network equipment 110 and the terminal equipment 120 may be the specific equipment described above, and will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities, which are not limited in this embodiment of the present application.
  • the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is 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 indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.
  • predefinition can be realized by pre-saving corresponding codes, tables or other methods that can be used to indicate related information in devices (for example, including terminal devices and network devices).
  • the implementation method is not limited.
  • pre-defined may refer to defined in the protocol.
  • the "protocol” may refer to a standard protocol in the communication field, for example, it may include the LTE protocol, the NR protocol, and related protocols applied in future communication systems, which is not limited in the present application.
  • the frequency domain-spatial codebook also called NR type (type) II codebook, or the frequency domain-spatial joint codebook
  • the domain is coded independently. Due to the high spatial quantization accuracy, the total feedback amount is too large. By feeding back the frequency domain-space joint codebook, the feedback amount can be greatly saved under the condition of ensuring NR performance.
  • the frequency domain-spatial codebook can be expressed as:
  • W represents the frequency domain-spatial codebook
  • W 1 represents the discrete Fourier transformation (Discrete fourier transformation, DFT) vectors of 2L spatial beams (beams)
  • W f represents the DFT basis vectors of M frequency domains.
  • W f represents the transpose of W f .
  • W 1 can be represented by 2N 1 N 2 *2L, N 1 is the number of ports in the vertical direction, and N 2 is the number of ports in the horizontal direction. It can be represented by 2L*M, and the value of 2L is The number of rows, M value is the number of columns. It can be represented by M*N 3 , where N 3 is the number of DFT basis vectors in the frequency domain.
  • the content of the channel information (such as CSI) reported to the network device includes: DFT vectors of L spatial beams of W 1 , DFT basis of M frequency domains of W f vector, and quantized
  • the network device obtains the CSI of the downlink of each layer through the product of the three.
  • the network equipment obtains the statistical characteristics of the uplink space and delay through the uplink Sounding Reference Signal (SRS), and determines the spatial and frequency domain
  • SRS Sounding Reference Signal
  • the precoding matrix or the joint precoding matrix is used to precode the Channel State Information Reference Signal (CSI-RS), and the terminal device estimates the CSI-RS to select one or more ports and report the port at the same time amplitude and phase information.
  • CSI-RS Channel State Information Reference Signal
  • this application proposes a technical solution that compresses the codebook overhead and improves feedback efficiency by estimating the characteristics of the space domain and time delay (DFT transform domain) from the uplink channel Sounding Reference Signal (SRS).
  • DFT transform domain space domain and time delay
  • FIG. 2 is a schematic interactive diagram of a method 200 for reporting a codebook according to an embodiment of the present application. As shown in FIG. 2 , the method 200 includes the following content:
  • the terminal device reports channel state information CSI to the network device, where the CSI includes at least one of the following information:
  • Amplitude indication information and phase indication information of non-zero coefficients are Amplitude indication information and phase indication information of non-zero coefficients
  • the CSI is used by the network device to determine a codebook. That is, the CSI may include codebook related information.
  • the M is configured by a network device, or the M may also be predefined, for example, M is determined according to a high-level parameter or a predefined parameter.
  • the M is 1 or 2, that is, the terminal device can report one frequency domain basis vector (FD-basis) or two FD-basis to the network device.
  • FD-basis frequency domain basis vector
  • the M frequency-domain basis vectors may be indicated by indexes.
  • the CSI may include an index of each of the M frequency-domain basis vectors.
  • bitmap is used to determine the location of non-zero coefficients.
  • the terminal device reports the same M FD-basis for different layers of the codebook, or the terminal device reports M FD-basis corresponding to each layer. That is, for different layers, the terminal device may select the same FD-basis, or may select different FD-basis.
  • the M FD-basis may be selected from N 3 frequency domain basis vectors, where N 3 represents the number of precoding matrix indicator (Precoding Matrix Indicator, PMI) subbands.
  • N 3 represents the number of precoding matrix indicator (Precoding Matrix Indicator, PMI) subbands.
  • the constraint conditions satisfied by the M frequency-domain basis vectors are one or more of the following:
  • Constraint 1 The M frequency-domain basis vectors are continuous.
  • M is equal to 2
  • the constraint condition 1 can be expressed by the following formula:
  • constraint condition 1 can also be expressed by the following formula:
  • mod means modulus
  • S is zero, or S is any integer.
  • the M is 2, and the two frequency domain basis vectors are ⁇ 0, 1 ⁇ .
  • Constraint 2 the M frequency-domain basis vectors are within a window with a length of N, where N represents the length of the window in which the terminal device reports the frequency-domain basis vectors.
  • N represents the length of the window in which the terminal device reports the frequency-domain basis vectors.
  • the range of FD-basis selected by the terminal device is smaller than N.
  • the N is predefined or configured by the network device.
  • M is equal to 2
  • the constraint condition 2 can be expressed by the following formula:
  • min means to take the minimum value.
  • constraints can also be represented by the following formula:
  • mod means modulus
  • S is zero, or S is any integer.
  • the N is 4, M is 2, and the two frequency-domain basis vectors are ⁇ 0,1 ⁇ , ⁇ 0,2 ⁇ or ⁇ 0,3 ⁇ .
  • Constraint condition 3 the constraint condition satisfied by the M frequency-domain basis vectors is configured by the network device or is predefined.
  • constraints satisfied by the M frequency-domain basis vectors are determined according to high-level parameters or predefined parameters.
  • M is 2
  • the M frequency-domain basis vectors satisfy the following constraints:
  • the d is a high-level parameter or a predefined parameter.
  • the frequency-domain basis vector in the M frequency-domain basis vectors The default is 0.
  • the terminal device may make a frequency-domain basis vector zero by cyclic shifting, for example
  • the CSI further includes at least one of the following information:
  • the terminal device reports the initial position information M initial of the window of the frequency domain basis vector
  • a first parameter a the first parameter is determined according to the indexes of the M frequency-domain basis vectors.
  • the CSI may include one i * , in this case, all layers of the codebook correspond to the same i * , or, the CSI may also include each layer corresponding to i * , in this case, i * corresponding to each layer of the codebook may be the same or different.
  • the i * may be reported by log 2 K 1 bits, that is, the bit width of i * may be log 2 K 1 bits.
  • the terminal device may round up log 2 K 1 to obtain the bit width of i * .
  • the CSI may include one f * , in this case, all layers of the codebook correspond to the same f * , or, the CSI may also include each layer corresponding to f * , in this case, f * corresponding to each layer of the codebook may be the same or different.
  • the f * may be reported by using log 2 M bits, that is, the bit width of f * may be log 2 M bits.
  • the terminal device may round up log 2 M to obtain the bit width of f * .
  • the CSI may include indices of at least one set of non-zero frequency-domain basis vectors.
  • all layers of the codebook correspond to the same non-zero frequency-domain basis vector index.
  • the CSI may also include indexes of a group of non-zero frequency-domain basis vectors corresponding to each layer.
  • the indices of a group of non-zero frequency-domain basis vectors corresponding to each layer of the codebook may be the same or different.
  • the CSI may include a first parameter a, in this case, all layers of the codebook correspond to the same first parameter a, or, the CSI may also be Including the first parameter a corresponding to each layer, in this case, the first parameter a corresponding to each layer of the codebook may be the same or different.
  • Embodiment 1 The CSI includes i * and f *
  • the CSI may be reported separately for i * and f * , or jointly reported for i * and f * .
  • Manner 1 The terminal device reports the i * through log 2 K 1 bits, and reports the f * through log 2 M bits.
  • Method 2 The terminal device jointly reports i * and f * through log 2 (K 1 M v ) bits.
  • K 1 represents the number of ports for which the terminal device reports CSI.
  • K1 is determined according to high - level parameters or predefined parameters.
  • the terminal device may round up log 2 (K 1 M v ) to obtain the number of bits for reporting i * and f * .
  • Embodiment 2 the CSI includes f * .
  • the terminal device reports the f * through log 2 M bits.
  • the terminal device reports f * to the network device, and the network device according to the combination formula of f * Determine the index of each frequency-domain basis vector.
  • Embodiment 3 the CSI includes Minitial , where the Minitial ⁇ [-M+1, L, 0].
  • the terminal device reports Minitial by using log 2 M bits.
  • the M frequency-domain base vectors can satisfy the aforementioned constraint condition 1, that is, the M frequency-domain base vectors can be continuous.
  • the terminal device reports the Minitial and does not report the M
  • the network device combines the formula according to the Minitial
  • the index of each frequency-domain basis vector can also be determined, which is beneficial to reduce the overhead of CSI.
  • the M frequency-domain basis vectors may also meet other constraint conditions, and the terminal device may also report the indexes of the M frequency-domain basis vectors, which is not limited in this application.
  • the CSI includes Minitial , and the Minitial is determined according to log 2 N′ 3 .
  • N'3 is configured by the network device, or N'3 is predefined.
  • N'3 may be determined according to high-layer parameters or predefined parameters.
  • N'3 is determined according to the length N of the window in which the terminal device reports the frequency-domain basis vector.
  • the N'3 is determined according to the length N of the window of the frequency-domain basis vector reported by the terminal device, including:
  • the N'3 is equal to N, or,
  • b is a parameter configured by the network device, or a predefined parameter, Indicates rounding up.
  • N'3 is 2, or 3 , as examples.
  • the M base vectors in the frequency domain may satisfy the aforementioned constraint condition 1, that is, the M base vectors in the frequency domain may be continuous.
  • the terminal device reports the Minitial and does not report the M
  • the network device combines the formula according to the Minitial
  • the index of each frequency-domain basis vector can also be determined, which is beneficial to reduce the overhead of CSI.
  • the M frequency-domain basis vectors may also meet other constraint conditions, and the terminal device may also report the indexes of the M frequency-domain basis vectors, which is not limited in this application.
  • Embodiment 5 The CSI includes an index of a non-zero frequency-domain basis vector.
  • the index of the non-zero frequency-domain basis vector is obtained by bit indication.
  • N'3 is configured by the network device, or N'3 is predefined.
  • N'3 may be determined according to high-layer parameters or predefined parameters.
  • N'3 is determined according to the length N of the window in which the terminal device reports the frequency-domain basis vector.
  • the N'3 is determined according to the length N of the window of the frequency-domain basis vector reported by the terminal device, including:
  • N′ 3 N, or,
  • N′ 3 2N-1, or,
  • c is a parameter configured by a network device, or a predefined parameter, Indicates rounding up.
  • the M frequency-domain basis vectors satisfy one of the aforementioned constraint condition 1, constraint condition 2 and constraint condition 3.
  • N′ 3 is 4
  • M is 2
  • the 2 FD-basis can be one of ⁇ 0,1 ⁇ , ⁇ 0,2 ⁇ and ⁇ 0,3 ⁇ .
  • the CSI includes a set of indices of non-zero frequency-domain basis vectors, and the indices of the set of non-zero frequency-domain basis vectors correspond to the code All layers of the codebook, or, the CSI includes indices of a set of non-zero frequency-domain basis vectors corresponding to each layer of the codebook. That is, the terminal device may report the same index of the non-zero frequency-domain basis vector for all layers of the codebook, or report the index of the corresponding non-zero frequency-domain basis vector for each layer of the codebook.
  • Embodiment 6 the CSI includes first parameters a and f * .
  • the network device may determine the index of the frequency-domain basis vector according to the first parameters a and f * .
  • the CSI may indicate the first parameters a and f * independently, or jointly indicate the first parameters a and f * .
  • the terminal device jointly indicates the first parameter a and f * through log 2 (2(N-1)) bits, or indicates the first parameter a through 1 bit, and indicates the first parameter a through log 2 (N-1 ) bits indicate the f * .
  • the M is 2, and the first parameter a is determined according to x and y, where x and y represent indexes of two frequency-domain basis vectors selected by the terminal device.
  • the first parameter a is determined according to the following formula:
  • a
  • the frequency-domain basis vector in the M frequency-domain basis vectors are integers.
  • the CSI includes a first parameter a, or the CSI includes a first parameter a corresponding to each layer.
  • the CSI includes one f * , and the one f * corresponds to all layers of the codebook, or the CSI includes f * corresponding to each layer.
  • the f * is carried in uplink control information (Uplink Control Information, UCI) part 2 (part2) group 0 (group0).
  • UCI Uplink Control Information
  • the method 200 further includes:
  • the terminal device prioritizes the non-zero coefficients and/or the bitmap.
  • the terminal device prioritizes the non-zero coefficients, so that when reducing the CSI overhead by reporting part of the CSI (that is, it needs to discard part of the CSI), it can select according to the priority of the non-zero coefficients
  • the non-zero coefficients reported in priority can reduce the impact of reporting part of the CSI on the accuracy of the codebook, that is, it is beneficial to balance the overhead of the codebook and the accuracy of the codebook.
  • the terminal device prioritizes the non-zero coefficients and/or the bitmap, including:
  • the terminal device calculates the non-zero coefficients and/or the bit Figures are prioritized.
  • the terminal device determines the priority of the non-zero coefficient according to the following formula:
  • Pri(l,i,f) represents the priority of non-zero coefficients
  • 2 ⁇ L represents the number of ports used to report CSI
  • 2 ⁇ L K 1
  • l represents the number of layers of the codebook
  • i represents the port index
  • f represents the index of the frequency-domain basis vector
  • v represents the rank number of the codebook.
  • the method 200 further includes:
  • the terminal device determines the priority ⁇ (f) of the frequency-domain basis vector according to the index of the frequency-domain basis vector.
  • the terminal device determines the priority ⁇ (f) of the frequency domain basis vector according to the following formula:
  • f represents the index of the frequency-domain basis vector
  • mod represents modulus
  • the terminal device determines the priority ⁇ (f) of the frequency domain basis vector according to the following formula:
  • ⁇ (f) min(2 mod(ff * ,M), 2(M-mod(ff * ,M))-1)
  • f represents the index of the frequency-domain basis vector
  • mod represents modulus
  • the priority of the frequency-domain basis vector corresponding to f * is higher than that of the next strongest coefficient The priority of the corresponding frequency-domain basis vector.
  • the terminal device determines the priority ⁇ (f) of the frequency domain basis vector according to the following formula:
  • Fig. 3 shows a schematic diagram of priorities of frequency-domain basis vectors determined in the embodiment of the present application. It can be seen from Fig. 3 that the method of determining the priority of the frequency-domain base vector according to the embodiment of the present application is equivalent to prioritizing the frequency-domain base vector corresponding to the strongest coefficient (SC) when determining the priority of the frequency-domain base vector level is determined as the highest priority. Therefore, when reporting part of the CSI, it is ensured that the information related to the strongest coefficient is reported first, which helps to ensure the accuracy of the codebook determined by the network device.
  • SC strongest coefficient
  • the rank of the codebook is 1, the maximum number of linear combination coefficients or, Wherein, ⁇ is determined according to high-level parameters or predefined parameters.
  • the rank of the codebook is greater than 1, the sum of the numbers of non-zero coefficients of all layers is 2K 0 ; or
  • rank of the codebook is greater than 1, all layers correspond to the same M. For example, M for all layers is 2.
  • the terminal device reports the position of the non-zero coefficient by means of a bitmap and/or a combination number.
  • the terminal device reports the number of non-zero coefficients in the form of a combined number Location.
  • the terminal device reports the non-zero coefficients in the form of a combined number s position.
  • the number of non-zero coefficients reported is greater than the third threshold and less than the fourth threshold, or, the number of non-zero coefficients reported is greater than or equal to the third threshold and less than the fourth threshold, or, in When the number of reported non-zero coefficients is greater than or equal to the third threshold and less than or equal to the fourth threshold, the terminal device reports the positions of the non-zero coefficients determined by way of bitmap.
  • the first threshold may be predefined or configured by a network device.
  • the second threshold may be predefined or configured by the network device.
  • the third threshold may be predefined or configured by the network device.
  • the fourth threshold may be predefined or configured by a network device.
  • the terminal device when the number of reported non-zero coefficients is equal to 1, and/or, the number of reported non-zero coefficients is equal to the maximum number of non-zero coefficients corresponding to the current rank, the terminal device does not report the bit picture.
  • the terminal device prioritizes the non-zero coefficients, so that when reporting part of the CSI (that is, the part of the CSI needs to be discarded) to reduce the CSI overhead, it can select the non-zero coefficients that are reported first according to the priority ranking of the non-zero coefficients.
  • the zero coefficient can reduce the impact of the reported part of the CSI on the accuracy of the codebook, that is, it is beneficial to balance the overhead of the codebook and the accuracy of the codebook.
  • the terminal device reports at least one of the port index i * corresponding to the strongest coefficient, the frequency-domain basis vector index f * corresponding to the strongest coefficient, Min initial , the index of the non-zero frequency-domain basis vector and the first parameter a, Considering the joint distribution of channel space and delay, it is beneficial to compress codebook overhead and improve feedback efficiency.
  • Fig. 4 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application.
  • the terminal device 400 includes:
  • the communication unit 410 is configured to report channel state information CSI to the network device, where the CSI includes at least one of the following information:
  • Amplitude indication information and phase indication information of non-zero coefficients are Amplitude indication information and phase indication information of non-zero coefficients
  • the CSI also includes at least one of the following information:
  • the terminal device reports the initial position information M initial of the window of the frequency domain basis vector
  • a first parameter a the first parameter is determined according to the indexes of the M frequency-domain basis vectors.
  • the CSI includes i * and/or f * ,
  • the i * is reported by log 2 K 1 bits, wherein K 1 represents the number of ports for which the terminal device reports CSI; and/or, the f * is reported by log 2 M bits.
  • the CSI includes i * and f * , and the i * and f * are jointly reported by log 2 (K 1 M v ) bits, where K 1 represents the CSI reported by the terminal device number of ports.
  • the CSI includes Minitial , where the Minitial ⁇ [-M+1, L, 0].
  • the Minitial is reported by log 2 M bits.
  • the CSI includes Minitial , and the Minitial is determined according to log 2 N′ 3 , where N′ 3 is configured by the network device, or N′ 3 is predefined, or , N' 3 is determined according to the length N of the window of the frequency-domain basis vector reported by the terminal device.
  • the N'3 is determined according to the length N of the window of the frequency-domain basis vector reported by the terminal device, including:
  • the N'3 is equal to N, or,
  • b is a parameter configured by the network device, or a predefined parameter, Indicates rounding up.
  • the N is determined according to parameters configured by the network device, or the N is determined according to predefined parameters.
  • the CSI includes an index of a non-zero frequency-domain basis vector, and the index of the non-zero frequency-domain basis vector is passed Bit indication, where N'3 is configured by the network device, or N'3 is predefined, or N'3 is determined according to the length N of the window in which the terminal device reports the frequency-domain basis vector.
  • the N'3 is determined according to the length N of the window of the frequency-domain basis vector reported by the terminal device, including:
  • N′ 3 N, or,
  • N′ 3 2N-1, or,
  • c is a parameter configured by a network device, or a predefined parameter, Indicates rounding up.
  • the CSI includes a set of indices of non-zero frequency-domain basis vectors, and the indices of the set of non-zero frequency-domain basis vectors correspond to the indices of the codebook All layers, or, the CSI includes indexes of a set of non-zero frequency-domain basis vectors respectively corresponding to each layer of the codebook.
  • the M is 2, and the first parameter a is determined according to x and y, where x and y represent indexes of two frequency-domain basis vectors selected by the terminal device.
  • means to take the absolute value.
  • the port index i * corresponding to the strongest coefficient is indicated by log 2 K 1 bits, where K 1 represents the number of ports for which the terminal device reports CSI.
  • the frequency-domain basis vector in the M frequency-domain basis vectors are integers.
  • N 3 represents the number of PMI subbands, and mod represents modulo.
  • the CSI includes the first parameters a and f * , and the first parameters a and f * are jointly indicated by log 2 (2(N-1)) bits, or, the The first parameter a is indicated by 1 bit, the f * is indicated by log 2 (N-1) bits, and N represents the length of a window in which the terminal device reports the frequency domain basis vector.
  • the CSI includes a first parameter a, or the CSI includes a first parameter a corresponding to each layer.
  • the CSI includes one f * , and the one f * corresponds to all layers of the codebook, or, the CSI includes f * corresponding to each layer .
  • the M frequency-domain basis vectors are continuous; or
  • the M frequency-domain basis vectors are within a window of length N, where N represents the length of the window in which the terminal device reports the frequency-domain basis vectors;
  • the conditions satisfied by the M frequency-domain basis vectors are configured by the network device or are predefined.
  • the frequency-domain basis vector in the M frequency-domain basis vectors are integers.
  • the CSI includes f * , where the f * is reported in UCI part 2, group 0.
  • the terminal device 400 further includes:
  • a processing unit 420 configured to sort the non-zero coefficients and/or the bitmap.
  • the processing unit 420 is also used to:
  • the processing unit 420 is also used to:
  • Pri(l,i,f) represents the priority of non-zero coefficients
  • 2 ⁇ L represents the number of ports used to report CSI
  • K 1 represents the port through which the terminal device reports CSI number
  • i represents the port index
  • f represents the index of the frequency-domain basis vector
  • the processing unit 420 is also used to:
  • the priority ⁇ (f) of the frequency domain base vector is determined.
  • the processing unit 420 is also used to:
  • the priority ⁇ (f) of the frequency domain basis vector is determined:
  • f represents the index of the frequency-domain basis vector
  • mod represents modulus
  • the processing unit 420 is also used to:
  • the priority ⁇ (f) of the frequency domain basis vector is determined:
  • ⁇ (f) min(2 mod(ff * ,M), 2(M-mod(ff * ,M))-1)
  • f represents the index of the frequency-domain basis vector
  • mod represents modulus
  • the priority of the frequency-domain basis vector corresponding to f * is higher than that of the next strongest coefficient The priority of the corresponding frequency-domain basis vector.
  • the processing unit 420 is also used to:
  • the priority ⁇ (f) of the frequency domain basis vector is determined:
  • N 3 represents the number of PMI subbands.
  • the CSI is used to determine a codebook, and the number of ports in the codebook is determined according to a high-layer parameter K 1 or L, where K 1 , 2L represents the port used by the terminal device to report the CSI number.
  • the CSI is used to determine a codebook, and if the rank of the codebook is 1, the maximum number of linear combination coefficients or, Wherein, ⁇ is determined according to a high-level parameter or a predefined parameter, wherein K 1 represents the number of ports used by the terminal device to report CSI.
  • K 1 represents the number of ports used by the terminal device to report CSI
  • ⁇ is determined according to high-layer parameters or predefined parameters.
  • the CSI is used to determine a codebook, and if the rank of the codebook is greater than 1, the sum of the numbers of non-zero coefficients of all layers is 2K 0 ; or
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input-output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • terminal device 400 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 400 are for realizing the method shown in FIG. 2 For the sake of brevity, the corresponding process of the terminal device in 200 will not be repeated here.
  • Fig. 5 is a schematic block diagram of a network device according to an embodiment of the present application.
  • the network device 500 of FIG. 5 includes:
  • the communication unit 510 is configured to receive channel state information CSI reported by the terminal device, wherein the CSI includes at least one item:
  • the CSI further includes at least one of the following information:
  • the terminal device reports the initial position information M initial of the window of the frequency domain basis vector
  • a first parameter a the first parameter is determined according to the indexes of the M frequency-domain basis vectors.
  • the CSI includes i * and/or f * ,
  • the i * is reported by log 2 K 1 bits, where K 1 represents the number of ports for which the terminal device reports CSI; and/or
  • the f * is reported by log 2 Mbits.
  • the CSI includes i * and f * ,
  • K 1 M v log 2 (K 1 M v ) bits, where K 1 represents the number of ports for which the terminal device reports CSI.
  • the CSI includes Minitial , where the Minitial ⁇ [-M+1, L, 0].
  • the Minitial is reported by log 2 M bits.
  • the CSI includes Minitial , and the Minitial is determined according to log 2 N′ 3 , where N′ 3 is configured by the network device, or N′ 3 is predefined, or, N ' 3 is determined according to the length N of the window of the frequency-domain basis vector reported by the terminal device.
  • the N'3 is determined according to the length N of the window of the frequency-domain basis vector reported by the terminal device, including:
  • the N'3 is equal to N, or,
  • b is a parameter configured by a network device, or a predefined parameter, Indicates rounding up.
  • the N is determined according to parameters configured by the network device, or the N is determined according to predefined parameters.
  • the CSI includes an index of a non-zero frequency-domain basis vector, and the index of the non-zero frequency-domain basis vector is passed Bit indication, where N'3 is configured by the network device, or N'3 is predefined, or N'3 is determined according to the length N of the window in which the terminal device reports the frequency-domain basis vector.
  • the N'3 is determined according to the length N of the window of the frequency-domain basis vector reported by the terminal device, including:
  • N′ 3 N, or,
  • N′ 3 2N-1, or,
  • c is a parameter configured by a network device, or a predefined parameter, Indicates rounding up.
  • the CSI includes a set of indices of non-zero frequency-domain basis vectors, and the indices of the set of non-zero frequency-domain basis vectors correspond to the indices of the codebook All layers, or, the CSI includes indexes of a set of non-zero frequency-domain basis vectors respectively corresponding to each layer of the codebook.
  • the M is 2, and the first parameter a is determined according to x and y, where x and y represent indexes of two frequency-domain basis vectors selected by the terminal device.
  • means to take the absolute value.
  • the port index i * corresponding to the strongest coefficient is indicated by log 2 K 1 bits, where K 1 represents the number of ports for which the terminal device reports CSI.
  • the frequency-domain basis vector in the M frequency-domain basis vectors are integers.
  • N 3 represents the number of PMI subbands, and mod represents modulo.
  • the CSI includes the first parameters a and f * , and the first parameters a and f * are jointly indicated by log 2 (2(N-1)) bits, or, the The first parameter a is indicated by 1 bit, the f * is indicated by log 2 (N-1) bits, and N represents the length of a window in which the terminal device reports the frequency domain basis vector.
  • the CSI includes a first parameter a, or the CSI includes a first parameter a corresponding to each layer.
  • the CSI includes one f * , and the one f * corresponds to all layers of the codebook, or, the CSI includes f * corresponding to each layer .
  • the M frequency-domain basis vectors are continuous; or
  • the M frequency-domain basis vectors are within a window of length N, where N represents the length of the window in which the terminal device reports the frequency-domain basis vectors;
  • the conditions satisfied by the M frequency-domain basis vectors are configured by the network device or are predefined.
  • the frequency-domain basis vector in the M frequency-domain basis vectors are integers.
  • the CSI includes f * , where the f * is reported in UCI part 2, group 0.
  • the network device 500 further includes:
  • a processing unit configured to sort the non-zero coefficients and/or the bitmap.
  • the processing unit is also used for:
  • the processing unit is also used for:
  • Pri(l,i,f) represents the priority of non-zero coefficients
  • 2 ⁇ L represents the number of ports used to report CSI
  • K 1 represents the port through which the terminal device reports CSI number
  • i represents the port index
  • f represents the index of the frequency-domain basis vector
  • the processing unit is also used for:
  • the priority ⁇ (f) of the frequency domain base vector is determined.
  • the processing unit is also used for:
  • the priority ⁇ (f) of the frequency domain basis vector is determined:
  • f represents the index of the frequency domain basis vector.
  • the processing unit is also used for:
  • the priority ⁇ (f) of the frequency domain basis vector is determined:
  • ⁇ (f) min(2 mod(ff * ,M), 2(M-mod(ff * ,M))-1)
  • f represents the index of the frequency domain basis vector.
  • the priority of the frequency-domain basis vector corresponding to f * is higher than that of the next strongest coefficient The priority of the corresponding frequency-domain basis vector.
  • the processing unit is also used for:
  • the priority ⁇ (f) of the frequency domain basis vector is determined:
  • N 3 represents the number of PMI subbands.
  • the CSI is used to determine a codebook, and the number of ports in the codebook is determined according to a high-layer parameter K 1 or L, where K 1 , 2L represents the port used by the terminal device to report the CSI number.
  • the CSI is used to determine the codebook. If the rank of the codebook is 1, the maximum number of linear combination coefficients or, Wherein, ⁇ is determined according to a high-level parameter or a predefined parameter, wherein K 1 represents the number of ports used by the terminal device to report CSI.
  • K 1 represents the number of ports used by the terminal device to report CSI
  • ⁇ is determined according to high-layer parameters or predefined parameters.
  • the CSI is used to determine a codebook, and if the rank of the codebook is greater than 1, the sum of the numbers of non-zero coefficients of all layers is 2K 0 ; or
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input-output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • the network device 500 may correspond to the network device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the network device 500 are for realizing the method shown in FIG. 2 For the sake of brevity, the corresponding processes of the network devices in 200 will not be repeated here.
  • FIG. 6 is a schematic structural diagram of a communication device 600 provided in an embodiment of the present application.
  • the communication device 600 shown in FIG. 6 includes a processor 610, and the processor 610 can invoke and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the communication device 600 may further include a memory 620 .
  • the processor 610 can invoke and run a computer program from the memory 620, so as to implement the method in the embodiment of the present application.
  • the memory 620 may be an independent device independent of the processor 610 , or may be integrated in the processor 610 .
  • the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, to send information or data to other devices, or receive other Information or data sent by the device.
  • the transceiver 630 may include a transmitter and a receiver.
  • the transceiver 630 may further include antennas, and the number of antennas may be one or more.
  • the communication device 600 may specifically be the network device of the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, details are not repeated here. .
  • the communication device 600 may specifically be the mobile terminal/terminal device of the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, for the sake of brevity , which will not be repeated here.
  • FIG. 7 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 700 shown in FIG. 7 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the chip 700 may further include a memory 720 .
  • the processor 710 can invoke and run a computer program from the memory 720, so as to implement the method in the embodiment of the present application.
  • the memory 720 may be an independent device independent of the processor 710 , or may be integrated in the processor 710 .
  • the chip 700 may also include an input interface 730 .
  • the processor 710 can control the input interface 730 to communicate with other devices or chips, specifically, can obtain information or data sent by other devices or chips.
  • the chip 700 may also include an output interface 740 .
  • the processor 710 can control the output interface 740 to communicate with other devices or chips, specifically, 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 methods of the embodiment of the present application.
  • the chip can implement the corresponding processes implemented by the network device in the methods of the embodiment of the present application.
  • the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application.
  • the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application.
  • the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application.
  • the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application.
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • FIG. 8 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in FIG. 8 , the communication system 900 includes a terminal device 910 and a network device 920 .
  • the terminal device 910 can be used to realize the corresponding functions realized by the terminal device in the above method
  • the network device 920 can be used to realize the corresponding functions realized by the network device in the above method.
  • the processor in the embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • the steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • 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.
  • the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash.
  • the volatile memory can be Random Access Memory (RAM), which acts as external cache memory.
  • RAM Static Random Access Memory
  • SRAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • 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 connection dynamic random access memory
  • Synchlink DRAM, SLDRAM Direct Memory Bus Random Access Memory
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a 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 connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is, the memory in the embodiments of the present application is intended to include, but not be limited to, these and any other suitable types of memory.
  • the embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the methods of the embodiments of the present application.
  • the computer program enables the computer to execute the corresponding processes implemented by the network device in the methods of the embodiments of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application , for the sake of brevity, it is not repeated here.
  • the embodiment of the present application also provides a computer program product, including computer program instructions.
  • the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the Let me repeat for the sake of brevity, the Let me repeat.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods of the embodiments of the present application, For the sake of brevity, details are not repeated here.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device in the embodiment of the present application.
  • the computer program executes the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program executes the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application.
  • the computer program executes each method in the embodiment of the present application to be implemented by the mobile terminal/terminal device
  • the corresponding process will not be repeated here.
  • the disclosed systems, devices and methods may 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 can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of 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 may be distributed to multiple network units. Part 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 may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the functions described above are realized in the form of software function 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 prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present 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 disc and other media that can store program codes. .

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Abstract

L'invention concerne un procédé de création de rapport de livre de codes, un dispositif terminal et un dispositif de réseau, qui facilitent une réduction de surdébits de livres de codes. Le procédé comprend les étapes suivantes : un dispositif terminal rapporte des informations d'état de canal (CSI) à un dispositif de réseau, les CSI comprenant au moins un élément des informations suivantes : M vecteurs de base de domaine fréquentiel, M étant un nombre entier positif; le coefficient le plus fort; des informations d'indication d'amplitude et des informations d'indication de phase d'un coefficient non nul; et une table de bits.
PCT/CN2021/099133 2021-06-09 2021-06-09 Procédé de création de rapport de livre de codes, dispositif terminal et dispositif de réseau WO2022257042A1 (fr)

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CN202180098193.7A CN117296366A (zh) 2021-06-09 2021-06-09 码本上报的方法、终端设备和网络设备
PCT/CN2021/099133 WO2022257042A1 (fr) 2021-06-09 2021-06-09 Procédé de création de rapport de livre de codes, dispositif terminal et dispositif de réseau

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