WO2024094153A1 - 码本反馈、接收方法及装置、存储介质、终端设备 - Google Patents
码本反馈、接收方法及装置、存储介质、终端设备 Download PDFInfo
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- transmission reception
- codebook
- feedback parameter
- reception point
- feedback
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- 230000005540 biological transmission Effects 0.000 claims abstract description 263
- 239000011159 matrix material Substances 0.000 claims abstract description 51
- 238000004891 communication Methods 0.000 claims description 36
- 238000004590 computer program Methods 0.000 claims description 27
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- 238000005259 measurement Methods 0.000 claims description 6
- 230000001427 coherent effect Effects 0.000 abstract description 12
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- 102100023591 Polyphosphoinositide phosphatase Human genes 0.000 description 3
- 101100012902 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FIG2 gene Proteins 0.000 description 3
- 101100233916 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) KAR5 gene Proteins 0.000 description 3
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0636—Feedback format
- H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
Definitions
- the present application relates to the field of communication technology, and in particular to a codebook feedback, receiving method and device, storage medium, and terminal equipment.
- the New Radio (NR) system has introduced the Coherent Joint Transmission (CJT) mechanism.
- CJT Coherent Joint Transmission
- network devices can perform coherent joint transmission with terminals through multiple Transmitter Receiver Points (TRPs).
- TRPs Transmitter Receiver Points
- the existing technology only supports codebook feedback for antenna precoding transmission under a single TRP. If the existing solution is continued to be used for coherent joint transmission in multiple TRPs, the feedback overhead will be very large.
- the present application provides a codebook feedback, receiving method and device, which can reduce the feedback overhead of codebook feedback when multiple TRPs perform coherent joint transmission.
- a codebook feedback method comprising: determining codebook feedback parameters corresponding to at least two transmission reception points, the codebook feedback parameters comprising reporting indication information, the reporting indication information being used to indicate whether to report a first feedback parameter, the first feedback parameter being used to indicate a position of a non-zero coefficient in a coefficient matrix; sending the codebook feedback parameters corresponding to at least two transmission reception points; This feedback parameter.
- the reporting indication information includes the total number of non-zero coefficients corresponding to all transmission receiving points. If the total number is equal to the sum of the coefficients corresponding to all transmission receiving points, the reporting indication information indicates that the first feedback parameters corresponding to all transmission receiving points are not reported.
- determining the codebook feedback parameters corresponding to at least two transmission reception points includes: comparing the total number with the sum of the coefficients corresponding to all transmission reception points; if the total number is equal to the sum of the coefficients corresponding to all transmission reception points, determining that the codebook feedback parameters do not include the first feedback parameters corresponding to all transmission reception points; if the total number is less than the sum of the coefficients corresponding to all transmission reception points, determining that the codebook feedback parameters include the first feedback parameters corresponding to all transmission reception points.
- the reporting indication information includes the number of non-zero coefficients corresponding to each transmission receiving point. If the number of non-zero coefficients corresponding to the transmission receiving point is the number of coefficients corresponding to the transmission receiving point, the reporting indication information indicates that the first feedback parameter corresponding to the transmission receiving point is not reported.
- determining the codebook feedback parameters corresponding to at least two transmission reception points includes: comparing the number of non-zero coefficients corresponding to each transmission reception point with the number of coefficients corresponding to the transmission reception point; if the number of non-zero coefficients corresponding to the transmission reception point is equal to the number of coefficients corresponding to the transmission reception point, determining that the codebook feedback parameter does not include the first feedback parameter corresponding to the transmission reception point; if the number of non-zero coefficients corresponding to the transmission reception point is less than the number of coefficients corresponding to the transmission reception point, determining that the codebook feedback parameter includes the first feedback parameter corresponding to the transmission reception point.
- the reporting indication information includes transmission reception point indication information, and the transmission reception point indication information indicates a transmission reception point that does not need to report a corresponding first feedback parameter, or indicates whether to report the first feedback parameter corresponding to each transmission reception.
- the determining of the codebook feedback parameters corresponding to at least two transmission reception points includes: determining, according to the transmission reception point indication information, a transmission reception point that does not need to report the corresponding first feedback parameter, and determining that the codebook feedback parameter does not include the transmission reception point corresponding to the first feedback parameter.
- the first feedback parameter is determining, according to the transmission reception point indication information, a transmission reception point that does not need to report the corresponding first feedback parameter, and determining that the codebook feedback parameter does not include the transmission reception point corresponding to the first feedback parameter. The first feedback parameter.
- determining the codebook feedback parameters corresponding to at least two transmission reception points further includes: determining that the number of non-zero coefficients corresponding to the transmission reception point is not included in the codebook feedback parameters.
- the codebook feedback parameters also include a second feedback parameter, a third feedback parameter and a fourth feedback parameter
- the second feedback parameter is used to indicate the amplitude and phase of the non-zero coefficient
- the third feedback parameter is used to indicate the frequency domain beam group
- the fourth feedback parameter is used to indicate the spatial domain beam group.
- determining the codebook feedback parameters corresponding to each of the at least two transmission receiving points includes: obtaining a reference signal to be measured, wherein the reference signal to be measured is used to measure the channel states of multiple candidate transmission receiving points; measuring the reference signal to be measured, and determining the codebook feedback parameters corresponding to the at least two transmission receiving points based on the measurement results, wherein the at least two transmission receiving points are selected from the multiple candidate transmission receiving points.
- the present application also discloses a codebook receiving method, which includes: receiving codebook feedback parameters corresponding to at least two transmission receiving points, the codebook feedback parameters including reporting indication information, the reporting indication information is used to indicate whether to report a first feedback parameter, and the first feedback parameter is used to indicate the position of a non-zero coefficient in a coefficient matrix.
- the reporting indication information includes the total number of non-zero coefficients corresponding to all transmission reception points
- the method further includes: comparing the total number with the sum of the coefficients corresponding to all transmission reception points; if the total number is equal to the sum of the coefficients corresponding to all transmission reception points, determining that the codebook feedback parameter does not include the first feedback parameter corresponding to all transmission reception points; if the total number is less than the sum of the coefficients corresponding to all transmission reception points, determining that the codebook feedback parameter includes the first feedback parameter corresponding to all transmission reception points.
- the reporting indication information includes the number of non-zero coefficients corresponding to each transmission reception point
- the method further includes: comparing the number of non-zero coefficients corresponding to each transmission reception point with the number of coefficients corresponding to the transmission reception point; if the number of non-zero coefficients corresponding to the transmission reception point is equal to the number of coefficients corresponding to the transmission reception point, determining the number of non-zero coefficients corresponding to the transmission reception point.
- the codebook feedback parameter does not include the first feedback parameter corresponding to the transmission reception point; if the number of non-zero coefficients corresponding to the transmission reception point is less than the number of coefficients corresponding to the transmission reception point, it is determined that the codebook feedback parameter of the transmission reception point includes the first feedback parameter corresponding to the transmission reception point.
- the reporting indication information includes transmission receiving point indication information
- the transmission receiving point indication information indicates a transmission receiving point that does not need to report the corresponding first feedback parameter, or indicates whether to report the first feedback parameter corresponding to each transmission receiving point
- the method also includes: determining a transmission receiving point that does not need to report the corresponding first feedback parameter according to the transmission receiving point indication information, and determining that the codebook feedback parameter does not include the first feedback parameter corresponding to the transmission receiving point.
- the present application also discloses a communication device, which includes: a processing module for determining codebook feedback parameters corresponding to at least two transmission receiving points, the codebook feedback parameters including reporting indication information, the reporting indication information being used to indicate whether to report a first feedback parameter, the first feedback parameter being used to indicate the position of a non-zero coefficient in a coefficient matrix; a communication module for sending the codebook feedback parameters.
- the present application also discloses a communication device, which includes: a communication module, used to receive codebook feedback parameters corresponding to at least two transmission receiving points, the codebook feedback parameters including reporting indication information, the reporting indication information is used to indicate whether to report a first feedback parameter, and the first feedback parameter is used to indicate the position of a non-zero coefficient in a coefficient matrix.
- a computer-readable storage medium on which a computer program is stored, and the computer program is executed by a processor to execute any one of the methods provided in the first aspect or the second aspect.
- a communication device comprising a memory and a processor, wherein the memory stores a computer program executable on the processor, and the processor executes the computer program to execute any one of the methods provided in the first aspect.
- a communication device including a memory and a processor, wherein the memory A computer program executable on a processor is stored thereon, wherein the processor executes the computer program to execute any one of the methods provided in the second aspect.
- a computer program product on which a computer program is stored, and the computer program is executed by a processor to execute any one of the methods provided in the first aspect or the second aspect.
- a communication system comprising the above-mentioned terminal device and the above-mentioned network device.
- an embodiment of the present application further provides a chip (or a data transmission device) on which a computer program is stored, and when the computer program is executed by the chip, the steps of the above method are implemented.
- the embodiment of the present application further provides a system chip, characterized in that, applied to a terminal device, the system chip includes at least one processor and an interface circuit, the interface circuit and the at least one processor are interconnected through a line, and the at least one processor is used to execute instructions to execute any one of the methods provided in the first aspect or the second aspect of the claim
- reporting indication information is set in the codebook feedback parameters corresponding to at least two transmission reception points, and the reporting indication information is used to indicate whether to report the first feedback parameter, and the first feedback parameter is used to indicate the position of the non-zero coefficient in the coefficient matrix.
- the terminal device does not need to report the position of the non-zero coefficient in the coefficient matrix under certain conditions, thereby reducing the feedback overhead of the codebook feedback when multiple transmission reception points perform coherent joint transmission as a whole.
- the reporting indication information includes the total number of non-zero coefficients corresponding to all transmission reception points.
- the terminal device when the total number of non-zero coefficients is equal to the sum of the coefficients corresponding to all transmission reception points, the terminal device does not need to report the first feedback parameters corresponding to all transmission reception points, thereby reducing the feedback overhead of the codebook feedback.
- the reporting indication information includes the non-zero coefficients corresponding to each transmission reception point.
- the terminal device when the number of non-zero coefficients corresponding to the transmission reception point is the number of coefficients corresponding to the transmission reception point, the terminal device does not need to report the first feedback parameter corresponding to the transmission reception point, or the terminal device does not need to report the first feedback parameter corresponding to the transmission reception point indicated by the transmission reception point indication information, thereby realizing the reporting control of the first feedback parameter of a single transmission reception point, and further reducing the feedback overhead of the codebook feedback.
- FIG1 is an interactive flow chart of a codebook feedback method provided in an embodiment of the present application.
- FIG2 is an interactive flow chart of another codebook feedback method provided in an embodiment of the present application.
- FIG3 is an interactive flow chart of another codebook feedback method provided in an embodiment of the present application.
- FIG4 is an interactive flow chart of another codebook feedback method provided in an embodiment of the present application.
- FIG5 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.
- FIG6 is a schematic diagram of the hardware structure of a communication device provided in an embodiment of the present application.
- the communication systems to which the embodiments of the present application are applicable include, but are not limited to, Long Term Evolution (LTE) systems, fifth-generation (5G) systems, new radio (NR) systems, and future evolution systems or multiple communication convergence systems.
- LTE Long Term Evolution
- 5G fifth-generation
- NR new radio
- future evolution systems or multiple communication convergence systems include, but are not limited to, Long Term Evolution (LTE) systems, fifth-generation (5G) systems, new radio (NR) systems, and future evolution systems or multiple communication convergence systems.
- the 5G system can be a non-standalone (NSA) 5G system or a standalone (SA) 5G system.
- SA standalone
- the technical solution of the present application is also applicable to different network architectures, including but not limited to relay network architecture, dual-link architecture, vehicle-to-everything architecture and other architectures.
- This application mainly relates to the communication between terminal equipment and network equipment. Among them:
- the network device in the embodiment of the present application may also be referred to as an access network device, for example, a base station (BS) (also referred to as a base station device), which is a network device deployed in a radio access network (RAN) to provide wireless communication.
- BS base station
- RAN radio access network
- the equipment that provides base station functions in the second-generation (2nd-Generation, 2G) network includes the base transceiver station (Base Transceiver Station, BTS), the equipment that provides base station functions in the third-generation (3rd-Generation, 3G) network includes the node B (NodeB), the equipment that provides base station functions in the fourth-generation (4th-Generation, 4G) network includes the evolved node B (evolved NodeB, eNB), in the wireless local area network (Wireless Local Area Networks, WLAN), the equipment that provides base station functions is the access point (Access Point, AP), the equipment that provides base station functions in NR is the next generation Node Base station (next generation Node Base station, gNB), and the evolved node B (ng-eNB), wherein the gNB and the terminal device communicate using NR technology, and the ng-eNB and the terminal device communicate using Evolved Universal Terrestrial Radio Access (E-UTRA) technology, and both gNB and ng-U
- the terminal equipment in the embodiments of the present application may refer to various forms of access terminals, user units, user stations, mobile stations, mobile stations (MS), remote stations, remote terminals, mobile devices, user terminals, wireless communication devices, user agents or user devices.
- the terminal equipment may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolving Public Land Mobile Network (PLMN), etc., and the embodiments of the present application do not limit this.
- the terminal equipment may also be referred to as User Equipment (UE), a terminal, etc.
- the prior art only supports codebook feedback for antenna precoding transmission under a single TRP. If the existing solution is continued to be used for coherent joint transmission in multiple TRPs, the feedback overhead will be very large.
- This application uses the reporting indication information in the codebook feedback parameter to enable the terminal device to Under certain conditions, there is no need to report the position of the non-zero coefficient in the coefficient matrix, thereby reducing the feedback overhead of codebook feedback when multiple transmission and reception points perform coherent joint transmission as a whole.
- the method provided in this application includes:
- Step 101 The terminal device determines codebook feedback parameters corresponding to at least two transmission reception points, wherein the codebook feedback parameters include reporting indication information, the reporting indication information is used to indicate whether to report a first feedback parameter, and the first feedback parameter is used to indicate the position of a non-zero coefficient in a coefficient matrix.
- the codebook feedback parameters include reporting indication information
- the reporting indication information is used to indicate whether to report a first feedback parameter
- the first feedback parameter is used to indicate the position of a non-zero coefficient in a coefficient matrix.
- Step 102 The terminal device sends a codebook feedback parameter to the network device.
- the codebook feedback method can be implemented in the form of a software program, and the software program runs in a processor integrated inside a chip or a chip module.
- the method can also be implemented in the form of software combined with hardware, which is not limited in this application.
- the terminal device obtains a reference signal to be measured, which is used to measure the channel status of multiple candidate transmission receiving points; measures the reference signal to be measured, and determines codebook feedback parameters corresponding to at least two transmission receiving points based on the measurement results, and the at least two transmission receiving points are selected from multiple candidate transmission receiving points.
- the network device may configure a channel state information reference signal (CSI-RS) resource for channel measurement.
- the network device may include multiple transmission receiving points, which are recorded as multiple candidate transmission receiving points. Multiple candidate transmission receiving points may be set at different geographical locations.
- the network device may send a reference signal to be measured (such as CSI-RS) to the terminal device through multiple candidate transmission receiving points to measure the channel state between each candidate transmission receiving point and the terminal device.
- the reference signal to be measured corresponds one-to-one to the candidate transmission receiving point.
- the terminal device can measure each received reference signal to be measured to estimate the channel state between the terminal device and each candidate transmission reception point, thereby obtaining To multiple channel matrices.
- the channel matrices correspond to the candidate transmission reception points one by one, and each channel matrix is used to indicate the channel state between the corresponding candidate transmission reception point and the terminal device.
- the transmission reception point referred to in the embodiment of the present application may refer to multiple transmission reception points participating in coherent joint transmission determined by the terminal device from multiple candidate transmission reception points.
- the terminal device calculates the codebook feedback parameter according to the channel matrix corresponding to the above transmission reception point.
- the codebook feedback parameter can be used to calculate the codebook.
- the codebook feedback parameters in this embodiment are calculated based on the channel matrices of multiple transmission and reception points at the same time, so it is possible to support coherent joint transmission of multiple transmission and reception points.
- the codebook feedback parameters include a second feedback parameter, a third feedback parameter and a fourth feedback parameter
- the second feedback parameter is used to indicate the amplitude and phase of the non-zero coefficient
- the third feedback parameter is used to indicate the frequency domain beam group
- the fourth feedback parameter is used to indicate the spatial domain beam group.
- the content of the codebook feedback parameter is defined by the structure of the codebook.
- W 1 represents the spatial domain beam matrix
- W H freq represents the frequency domain beam matrix
- W' represents the linear weighting coefficient matrix.
- the dimension of W 1 can be N TX ⁇ (m ⁇ L), where m is the number of transmission reception points, L is the number of spatial domain beam vectors corresponding to each transmission reception point, each spatial domain beam vector is used to represent a spatial domain beam selected by the terminal device, and N TX represents the length of the spatial domain beam vector.
- the dimension of W H freq can be N ⁇ K, where K represents the number of frequency domain beam vectors, each frequency domain beam vector is used to represent a frequency domain beam selected by the terminal device, and N is the length of the frequency domain beam vector.
- W' includes multiple weighting coefficient matrices, that is, W' is obtained by concatenating multiple weighting coefficient matrices.
- the dimension of W' can be (m ⁇ L) ⁇ K, and the dimension of each weighting coefficient matrix can be L ⁇ K.
- the weighting coefficient matrix and the spatial domain beam group correspond one to one.
- Each coefficient in the weighting coefficient matrix corresponds to a spatial domain beam vector in the spatial domain beam group corresponding to the weighting coefficient matrix and a frequency domain beam vector in the frequency domain beam group.
- N TX , L, N and K are all pre-configured coefficients, and this application does not impose any limitation on this.
- the codebook feedback parameters referred to in this embodiment are the parameters corresponding to the spatial domain beam matrix, the frequency domain beam matrix, and the coefficient matrix.
- the codebook feedback parameters include a first feedback parameter, and the first feedback parameter is used to indicate the position of the non-zero coefficient in the coefficient matrix.
- the codebook feedback parameters also include a second feedback parameter, a third feedback parameter, and a fourth feedback parameter, the second feedback parameter is used to indicate the amplitude and phase of the non-zero coefficient, the third feedback parameter is used to indicate the frequency domain beam group, such as indicating a group of selected frequency domain beams, and the fourth feedback parameter is used to indicate the spatial domain beam group, such as indicating a group of selected spatial domain beams.
- the codebook feedback parameter includes not only the above parameters but also reporting indication information.
- the terminal device adds a specific parameter (ie, reporting indication information) to the codebook feedback parameter to indicate whether to report the first feedback parameter.
- the codebook feedback parameter sent by the terminal device to the network device in step 102 does not include the first feedback parameter, which means that the amount of data that the terminal device needs to feedback is reduced and the feedback overhead is reduced.
- the reporting indication information may indicate that the first feedback parameters corresponding to some or all of the transmission reception points in the at least one transmission reception point are not reported.
- the codebook feedback parameter sent by the terminal device to the network device in step 102 includes the first feedback parameter.
- the reporting indication information includes the total number of non-zero coefficients corresponding to all transmission reception points. Specifically, the total number can be obtained by counting after the terminal device completes the measurement of the reference signal to be measured.
- Figure 2 shows the interaction process between the terminal device and the network device in this scenario.
- step 201 the terminal device compares the total number with the sum of the coefficients corresponding to all transmission reception points. Through the comparison result of step 201, it can be known whether the coefficients corresponding to all transmission reception points are non-zero coefficients.
- the terminal device sends a codebook feedback parameter to the network device.
- the codebook feedback parameter includes the total number of non-zero coefficients corresponding to all transmission reception points, that is, In addition to feeding back parameters related to the spatial domain beam matrix, frequency domain beam matrix and coefficient matrix to the network device, the terminal device also feeds back the total number of non-zero coefficients corresponding to all transmission and receiving points to the network device.
- the content of the codebook feedback parameter in step 202 may be different.
- the codebook feedback parameter does not include the first feedback parameter corresponding to all transmission reception points.
- the codebook feedback parameter also includes the first feedback parameter corresponding to all transmission reception points, that is, at this time, the terminal device needs to feedback the positions of the non-zero coefficients corresponding to all transmission reception points in the coefficient matrix to the network device.
- step 203 the network device determines feedback codebooks of at least two transmission reception points according to the codebook feedback parameters.
- the network device can determine the spatial domain beam matrix according to the fourth feedback parameter in the codebook feedback parameter.
- the network device can determine the frequency domain beam matrix according to the third feedback parameter in the codebook feedback parameter.
- the network device can determine the amplitude and phase of the non-zero coefficients in the coefficient matrix according to the second feedback parameter, and determine the position of the non-zero coefficients in the coefficient matrix according to the first feedback parameter, thereby obtaining a linear weighted coefficient matrix.
- the network device determines that all coefficients in the linear weighted coefficient matrix are non-zero coefficients according to the reported indication information, then the network device can determine the amplitude and phase of all non-zero coefficients in the coefficient matrix in combination with the second feedback parameter to obtain a linear weighted coefficient matrix.
- the network device can obtain the feedback codebook.
- the reporting indication information includes the number of non-zero coefficients corresponding to each transmission reception point.
- the number can be the number of non-zero coefficients corresponding to each transmission reception point.
- the signal is measured and obtained by statistics.
- Figure 3 shows the interaction process between the terminal device and the network device in this scenario.
- step 301 the terminal device compares the number of non-zero coefficients corresponding to each transmission reception point with the number of coefficients corresponding to the transmission reception point. Through the comparison result of step 201, it can be known whether the coefficients corresponding to each transmission reception point are all non-zero coefficients.
- the terminal device sends a codebook feedback parameter to the network device.
- the codebook feedback parameter includes the number of non-zero coefficients corresponding to each transmission reception point, that is, in addition to feeding back parameters related to the spatial domain beam matrix, the frequency domain beam matrix, and the coefficient matrix to the network device, the terminal device also feeds back the number of non-zero coefficients corresponding to each transmission reception point to the network device.
- step 301 the content of the codebook feedback parameter in step 302 is different.
- the codebook feedback parameter does not include the first feedback parameter corresponding to the transmission reception point.
- transmission reception point 1, transmission reception point 2, and transmission reception point 3 adopt coherent joint transmission
- the number of coefficients corresponding to transmission reception point 1 is 4, the number of coefficients corresponding to transmission reception point 2 is 9, and the number of coefficients corresponding to transmission reception point 3 is 12.
- the terminal device obtains through measurement results that the number of non-zero coefficients corresponding to transmission reception point 1 is 4, the number of non-zero coefficients corresponding to transmission reception point 2 is 9, and the number of non-zero coefficients corresponding to transmission reception point 3 is 10.
- the coefficients corresponding to transmission reception point 1 and transmission reception point 2 are all non-zero coefficients, and the terminal device no longer reports the positions of the non-zero coefficients corresponding to transmission reception point 1 and transmission reception point 2 in the codebook feedback parameter (that is, the first feedback parameter).
- the terminal device needs to feed back to the network device the position of the non-zero coefficient corresponding to the transmission receiving point in the coefficient matrix.
- step 303 the network device determines feedback codebooks of at least two transmission reception points according to the codebook feedback parameters.
- the embodiment of the present application can realize the reporting control of the first feedback parameter of a single transmission reception point, further reducing the feedback overhead of the codebook feedback. Furthermore, compared with the case where the coefficients corresponding to all transmission reception points are non-zero coefficients, the probability of the case where the coefficients corresponding to a single transmission reception point are all non-zero coefficients is greater. Then, by controlling the reporting of the first feedback parameter of a single transmission reception point, the probability of reducing the feedback overhead can be increased, thereby reducing the feedback overhead as a whole.
- the reported indication information includes transmission reception point indication information.
- Fig. 4 shows the interaction process between the terminal device and the network device in this scenario.
- the terminal device determines transmission reception point indication information.
- the transmission reception point indication information may be an identifier of the transmission reception point or a bitmap of the transmission reception point.
- the terminal device sends codebook feedback parameters to the network device.
- the codebook feedback parameters include transmission reception point indication information, that is, in addition to feeding back parameters related to the spatial domain beam matrix, the frequency domain beam matrix, and the coefficient matrix to the network device, the terminal device also feeds back the transmission reception point indication information to the network device.
- the transmission reception point indication information in step 401 it can also be determined whether the codebook feedback parameter includes the first feedback parameter, and which transmission reception points correspond to the first feedback parameter.
- the codebook feedback parameter does not include a first feedback parameter corresponding to the transmission reception point indicated by the identifier of the transmission reception point.
- the codebook feedback does not include the first feedback parameter corresponding to the transmission reception point. For example, when transmission reception point 1, transmission reception point 2, and transmission reception point 3 use coherent joint transmission and the bitmap is 110, the terminal device no longer reports the first feedback parameters corresponding to transmission reception point 1 and transmission reception point 2 in the codebook feedback parameters.
- the codebook feedback parameter may not include the first feedback parameter corresponding to the transmission reception point, and the present application does not impose any limitation on this.
- the terminal device in addition to feeding back the transmission reception point indication information, the spatial domain beam matrix, the frequency domain beam matrix, and the parameters related to the coefficient matrix to the network device, the terminal device also feeds back the number of non-zero coefficients corresponding to the transmission reception point to the network device. That is, the codebook feedback parameter does not include the number of non-zero coefficients corresponding to the transmission reception point that does not need to report the corresponding first feedback parameter, and the codebook feedback parameter includes the number of non-zero coefficients corresponding to other transmission reception points, and the other transmission reception points are the transmission reception points other than the transmission reception point that does not need to report the corresponding first feedback parameter among the at least two transmission reception points.
- the network device determines feedback codebooks of at least two transmission reception points according to the codebook feedback parameters.
- the communication device 50 may include:
- the communication module 502 is configured to send the codebook feedback parameter.
- the communication device 50 may correspond to a chip with a codebook feedback function in a terminal device, such as a system-on-a-chip (SOC), a baseband Chip, etc.; or corresponds to a chip module with a codebook feedback function in a terminal device; or corresponds to a chip module with a data processing function chip, or corresponds to a terminal device.
- a terminal device such as a system-on-a-chip (SOC), a baseband Chip, etc.
- the communication device 50 may include: a communication module 502, used to receive codebook feedback parameters corresponding to at least two transmission receiving points, the codebook feedback parameters including reporting indication information, the reporting indication information is used to indicate whether to report a first feedback parameter, and the first feedback parameter is used to indicate the position of a non-zero coefficient in a coefficient matrix.
- the above-mentioned communication device 50 may correspond to a chip with a codebook receiving function in a network device, such as a SOC, a baseband chip, etc.; or correspond to a chip module with a codebook receiving function in a network device; or correspond to a chip module with a data processing function chip, or correspond to a network device.
- a network device such as a SOC, a baseband chip, etc.
- a chip module with a codebook receiving function in a network device or correspond to a chip module with a data processing function chip, or correspond to a network device.
- the modules/units included in the devices and products described in the above embodiments may be software modules/units or hardware modules/units, or may be partially software modules/units and partially hardware modules/units.
- each module/unit contained therein may be implemented in the form of hardware such as circuits, or at least some of the modules/units may be implemented in the form of software programs, which run on a processor integrated inside the chip, and the remaining (if any) modules/units may be implemented in the form of hardware such as circuits;
- each module/unit contained therein may be implemented in the form of hardware such as circuits, and different modules/units may be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some of the modules/units may be implemented in the form of software programs, which run on a processor integrated inside the chip module, and the remaining (if any) modules/units may be
- the embodiment of the present application also discloses a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is run, the steps of the method shown in Figures 1 to 4 can be executed.
- the storage medium may include a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, etc.
- the storage medium may also include a non-volatile memory (non-volatile) or a non-transitory memory, etc.
- the present application also provides a hardware structure diagram of a communication device.
- the device includes a processor 601 , a memory 602 , and a transceiver 603 .
- Processor 601 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application.
- Processor 601 may also include multiple CPUs, and processor 601 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor.
- the processor here may refer to one or more devices, circuits, or processing cores for processing data (such as computer program instructions).
- the memory 602 may be a ROM or other type of static storage device that can store static information and instructions, a RAM or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, and the embodiments of the present application do not impose any restrictions on this.
- EEPROM electrically erasable programmable read-only memory
- CD-ROM compact disc read-only memory
- optical disc storage including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.
- magnetic disk storage medium or other magnetic storage device or any other medium that can be used to carry or store the desired program code in
- the memory 602 may exist independently (in this case, the memory 602 may be located outside the device or inside the device), or it may be connected to the processor 601.
- the memory 602 may contain computer program codes.
- the processor 601 is used to execute the computer program codes stored in the memory 602, thereby implementing the method provided in the embodiment of the present application.
- the processor 601, the memory 602 and the transceiver 603 are connected via a bus.
- the transceiver 603 is used to communicate with other devices or a communication network.
- the transceiver 603 may include a transmitter and a receiver.
- the device used to implement the receiving function in the transceiver 603 can be regarded as a receiver, and the receiver is used to perform the receiving step in the embodiment of the present application.
- the device used to implement the sending function in the transceiver 603 can be regarded as a transmitter, and the transmitter is used to perform the sending step in the embodiment of the present application.
- the processor 601 is used to control and manage the actions of the terminal device, for example, the processor 601 is used to support the terminal device to execute steps 101 and 102 in FIG1, or steps 201 and 202 in FIG2, or steps 301 and 302 in FIG3, or steps 401 and 402 in FIG4, and/or actions performed by the terminal device in other processes described in the embodiments of the present application.
- the processor 601 can communicate with other network entities through the transceiver 603, for example, communicate with the above-mentioned network device.
- the memory 602 is used to store program code and data of the terminal device.
- the processor 601 is used to control and manage the actions of the network device, for example, the processor 601 is used to support the network device to execute step 102 in FIG1, or steps 202 and 203 in FIG2, or steps 302 and 303 in FIG3, or steps 402 and 403 in FIG4, and/or the actions performed by the network device in other processes described in the embodiments of the present application.
- the processor 601 can communicate with other network entities through the transceiver 603, for example, communicate with the above-mentioned terminal device.
- the memory 602 is used to store program code and data of the network device.
- the embodiment of the present application defines the unidirectional communication link from the access network to the terminal device as a downlink, the data transmitted on the downlink is downlink data, and the transmission direction of the downlink data is called the downlink direction; and the unidirectional communication link from the terminal device to the access network is an uplink, and the uplink direction is the downlink direction.
- the data transmitted on the link is called uplink data, and the transmission direction of uplink data is called the uplink direction.
- connection refers to various connection methods such as direct connection or indirect connection to achieve communication between devices, and the embodiments of the present application do not impose any limitations on this.
- the above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination thereof.
- the above embodiments may be implemented in whole or in part in the form of a computer program product.
- the computer program product includes one or more computer instructions or computer programs.
- the processes or functions described in the embodiments of the present application are generated in whole or in part.
- the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
- the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired or wireless means.
- the size of the serial numbers of the above-mentioned processes does not mean the order of execution.
- the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
- 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 distributed on multiple network units. Some or all of the units may 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, or each unit may be physically included separately, or two or more units may be integrated into one unit.
- the above-mentioned integrated unit may be implemented in the form of hardware or in the form of hardware plus software functional units.
- the above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium.
- the above-mentioned software functional unit is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to perform some steps of the method described in each embodiment of the present application.
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Abstract
本申请提供了一种码本反馈、接收方法及装置、存储介质、终端设备，该码本反馈方法包括：确定至少两个传输接收点对应的码本反馈参数，所述码本反馈参数包括上报指示信息，所述上报指示信息用于指示是否上报第一反馈参数，所述第一反馈参数用于指示非零系数在系数矩阵中的位置；发送所述码本反馈参数。本申请技术方案降低多个TRP进行相干联合传输时码本反馈的反馈开销。
Description
本申请要求2022年11月4日提交中国专利局、申请号为202211378438.4、发明名称为“码本反馈、接收方法及装置、存储介质、终端设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
本申请涉及通信技术领域，尤其涉及一种码本反馈、接收方法及装置、存储介质、终端设备。
目前，新无线(New Radio，NR)系统引入了相干联合传输(Coherent Joint Transmission，CJT)机制。在相干联合传输机制下，网络设备可以通过多个传输接收点(Transmitter Receiver Point，TRP)与终端进行相干联合传输。
但是，现有技术中仅支持单个TRP下天线预编码传输的码本反馈，如果在多个TRP进行相干联合传输继续沿用现有方案，导致反馈开销非常大。
发明内容
本申请提供了一种码本反馈、接收方法及装置，能够降低多个TRP进行相干联合传输时码本反馈的反馈开销。
为了达到上述目的，本申请提供了以下技术方案：
第一方面，提供了一种码本反馈方法，码本反馈方法包括：确定至少两个传输接收点对应的码本反馈参数，所述码本反馈参数包括上报指示信息，所述上报指示信息用于指示是否上报第一反馈参数，所述第一反馈参数用于指示非零系数在系数矩阵中的位置；发送所述码
本反馈参数。
可选的，所述上报指示信息包括所有传输接收点对应的非零系数的总数量，若所述总数量等于所有传输接收点对应的系数之和，则所述上报指示信息指示不上报所有传输接收点对应的第一反馈参数。
可选的，所述确定至少两个传输接收点对应的码本反馈参数包括：比较所述总数量与所有传输接收点对应的系数之和；若所述总数量等于所有传输接收点对应的系数之和，则确定所述码本反馈参数不包括所有传输接收点对应的第一反馈参数；若所述总数量小于所有传输接收点对应的系数之和，则确定所述码本反馈参数包括所有传输接收点对应的第一反馈参数。
可选的，所述上报指示信息包括每一传输接收点对应的非零系数的数量，若传输接收点对应的非零系数的数量为该传输接收点对应的系数的数量，则所述上报指示信息指示不上报该传输接收点对应的第一反馈参数。
可选的，所述确定至少两个传输接收点对应的码本反馈参数包括：比较每一传输接收点对应的非零系数的数量与该传输接收点对应的系数的数量；若传输接收点对应的非零系数的数量等于该传输接收点对应的系数的数量，则确定所述码本反馈参数不包括该传输接收点对应的第一反馈参数；若传输接收点对应的非零系数的数量小于该传输接收点对应的系数的数量，则确定所述码本反馈参数包括该传输接收点对应的第一反馈参数。
可选的，所述上报指示信息包括传输接收点指示信息，所述传输接收点指示信息指示无需上报对应的第一反馈参数的传输接收点，或者指示是否上报各个传输接收对应的第一反馈参数。
可选的，所述确定至少两个传输接收点对应的码本反馈参数包括：根据所述传输接收点指示信息确定无需上报对应的第一反馈参数的传输接收点，并确定所述码本反馈参数中不包括该传输接收点对应
的第一反馈参数。
可选的，所述确定至少两个传输接收点对应的码本反馈参数还包括：确定所述码本反馈参数中不包括该传输接收点对应的非零系数的数量。
可选的，所述码本反馈参数还包括第二反馈参数、第三反馈参数和第四反馈参数，所述第二反馈参数用于指示非零系数的幅度和相位，所述第三反馈参数用于指示频域波束组，所述第四反馈参数用于指示空域波束组。
可选的，所述确定至少两个传输接收点中每一传输接收点对应的码本反馈参数包括：获取待测量参考信号，所述待测量参考信号用于对多个候选传输接收点的信道状态进行测量；对所述待测量参考信号进行测量，并根据测量结果确定所述至少两个传输接收点对应的码本反馈参数，所述至少两个传输接收点选自所述多个候选传输接收点。
第二方面，本申请还公开一种码本接收方法，码本接收方法包括：接收至少两个传输接收点对应的码本反馈参数，所述码本反馈参数包括上报指示信息，所述上报指示信息用于指示是否上报第一反馈参数，所述第一反馈参数用于指示非零系数在系数矩阵中的位置。
可选的，所述上报指示信息包括所有传输接收点对应的非零系数的总数量，所述方法还包括：比较所述总数量与所有传输接收点对应的系数之和；若所述总数量等于所有传输接收点对应的系数之和，则确定所述码本反馈参数不包括所有传输接收点对应的第一反馈参数；若所述总数量小于所有传输接收点对应的系数之和，则确定所述码本反馈参数包括所有传输接收点对应的第一反馈参数。
可选的，所述上报指示信息包括每一传输接收点对应的非零系数的数量，所述方法还包括：比较每一传输接收点对应的非零系数的数量与该传输接收点对应的系数的数量；若传输接收点对应的非零系数的数量等于该传输接收点对应的系数的数量，则确定该传输接收点的
码本反馈参数不包括该传输接收点对应的第一反馈参数；若传输接收点对应的非零系数的数量小于该传输接收点对应的系数的数量，则确定该传输接收点的码本反馈参数包括该传输接收点对应的第一反馈参数。
可选的，所述上报指示信息包括传输接收点指示信息，所述传输接收点指示信息指示无需上报对应的第一反馈参数的传输接收点，或者指示是否上报各个传输接收对应的第一反馈参数；所述方法还包括：根据所述传输接收点指示信息确定无需上报对应的第一反馈参数的传输接收点，并确定所述码本反馈参数中不包括该传输接收点对应的第一反馈参数。
第三方面，本申请还公开一种通信装置，通信装置包括：处理模块，用于确定至少两个传输接收点对应的码本反馈参数，所述码本反馈参数包括上报指示信息，所述上报指示信息用于指示是否上报第一反馈参数，所述第一反馈参数用于指示非零系数在系数矩阵中的位置；通信模块，用于发送所述码本反馈参数。
第四方面，本申请还公开一种通信装置，通信装置包括：通信模块，用于接收至少两个传输接收点对应的码本反馈参数，所述码本反馈参数包括上报指示信息，所述上报指示信息用于指示是否上报第一反馈参数，所述第一反馈参数用于指示非零系数在系数矩阵中的位置。
第五方面，提供了一种计算机可读存储介质，其上存储有计算机程序，计算机程序被处理器运行以执行第一方面或第二方面提供的任意一种方法。
第六方面，提供了一种通信装置，包括存储器和处理器，存储器上存储有可在处理器上运行的计算机程序，处理器运行计算机程序以执行第一方面提供的任意一种方法。
第七方面，提供了一种通信装置，包括存储器和处理器，存储器
上存储有可在处理器上运行的计算机程序，其特征在于，处理器运行计算机程序以执行第二方面提供的任意一种方法。
第八方面，提供了一种计算机程序产品，其上存储有计算机程序，计算机程序被处理器运行以执行第一方面或第二方面提供的任意一种方法。
第九方面，提供了一种通信系统，包括上述终端设备和上述网络设备。
第十方面，本申请实施例还提供一种芯片(或者说数据传输装置)，该芯片上存储有计算机程序，在计算机程序被芯片执行时，实现上述方法的步骤。
第十一方面，本申请实施例还提供一种系统芯片，其特征在于，应用于终端设备中，系统芯片包括至少一个处理器和接口电路，所述接口电路和所述至少一个处理器通过线路互联，所述至少一个处理器用于执行指令，以执行权利要求第一方面或第二方面提供的任意一种方法
与现有技术相比，本申请实施例的技术方案具有以下有益效果：
本申请技术方案中，在至少两个传输接收点对应的码本反馈参数中设置上报指示信息，上报指示信息用于指示是否上报第一反馈参数，第一反馈参数用于指示非零系数在系数矩阵中的位置。通过码本反馈参数中的上报指示信息，可以使终端设备在特定条件下无需上报非零系数在系数矩阵中的位置，从而在整体上降低多个传输接收点进行相干联合传输时码本反馈的反馈开销。
进一步地，上报指示信息包括所有传输接收点对应的非零系数的总数量。本申请技术方案中，非零系数的总数量等于所有传输接收点对应的系数之和时，终端设备无需上报所有传输接收点对应的第一反馈参数，从而降低码本反馈的反馈开销。
进一步地，上报指示信息包括每一传输接收点对应的非零系数的
数量，或者，上报指示信息包括传输接收点指示信息。本申请技术方案中，传输接收点对应的非零系数的数量为该传输接收点对应的系数的数量时，终端设备无需上报该传输接收点对应的第一反馈参数，或者终端设备无需上报传输接收点指示信息所指示的传输接收点对应的第一反馈参数，从而可以实现对单个传输接收点的第一反馈参数的上报控制，进一步降低了码本反馈的反馈开销。
图1是本申请实施例提供的一种码本反馈方法的交互流程图；
图2是本申请实施例提供的另一种码本反馈方法的交互流程图；
图3是本申请实施例提供的又一种码本反馈方法的交互流程图；
图4是本申请实施例提供的又一种码本反馈方法的交互流程图；
图5是本申请实施例提供的一种通信装置的结构示意图；
图6是本申请实施例提供的一种通信装置的硬件结构示意图。
本申请实施例适用的通信系统包括但不限于长期演进(Long Term Evolution，LTE)系统、第五代(5th-generation，5G)系统、新无线(New Radio，NR)系统，以及未来演进系统或者多种通信融合系统。其中，5G系统可以为非独立组网(Non-StandAlone，NSA)的5G系统或独立组网(StandAlone，SA)的5G系统。本申请技术方案也适用于不同的网络架构，包括但不限于中继网络架构、双链接架构、车辆到任何物体的通信(Vehicle-to-Everything)架构等架构。
本申请主要涉及终端设备和网络设备之间的通信。其中：
本申请实施例中的网络设备也可以称为接入网设备，例如，可以为基站(Base Station，BS)(也可称为基站设备)，网络设备是一种部署在无线接入网(Radio Access Network，RAN)用以提供无线通
信功能的装置。例如在第二代(2nd-Generation，2G)网络中提供基站功能的设备包括基地无线收发站(Base Transceiver Station，BTS)，第三代(3rd-Generation，3G)网络中提供基站功能的设备包括节点B(NodeB)，在第四代(4th-Generation，4G)网络中提供基站功能的设备包括演进的节点B(evolved NodeB，eNB)，在无线局域网络(Wireless Local Area Networks，WLAN)中，提供基站功能的设备为接入点(Access Point，AP)，NR中的提供基站功能的设备下一代基站节点(next generation Node Base station，gNB)，以及继续演进的节点B(ng-eNB)，其中gNB和终端设备之间采用NR技术进行通信，ng-eNB和终端设备之间采用演进的通用地面无线电接入(Evolved Universal Terrestrial Radio Access，E-UTRA)技术进行通信，gNB和ng-eNB均可连接到5G核心网。本申请实施例中的网络设备还包含在未来新的通信系统中提供基站功能的设备等。
本申请实施例中的终端设备(terminal equipment)可以指各种形式的接入终端、用户单元、用户站、移动站、移动台(Mobile Station，MS)、远方站、远程终端、移动设备、用户终端、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(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、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，PLMN)中的终端设备等，本申请实施例对此并不限定。终端设备也可以称为用户设备(User Equipment，UE)、终端等。
如背景技术中所述，现有技术中仅支持单个TRP下天线预编码传输的码本反馈，如果在多个TRP进行相干联合传输继续沿用现有方案，导致反馈开销非常大。
本申请通过码本反馈参数中的上报指示信息，可以使终端设备在
特定条件下无需上报非零系数在系数矩阵中的位置，从而在整体上降低多个传输接收点进行相干联合传输时码本反馈的反馈开销。
为使本申请的上述目的、特征和优点能够更为明显易懂，下面结合附图对本申请的具体实施例做详细的说明。
参见图1，本申请提供的方法包括：
步骤101：终端设备确定至少两个传输接收点对应的码本反馈参数。其中，码本反馈参数包括上报指示信息，上报指示信息用于指示是否上报第一反馈参数，第一反馈参数用于指示非零系数在系数矩阵中的位置。
步骤102：终端设备发送码本反馈参数至网络设备。
可以理解的是，在具体实施中，所述码本反馈方法可以采用软件程序的方式实现，该软件程序运行于芯片或芯片模组内部集成的处理器中。该方法也可以采用软件结合硬件的方式实现，本申请不作限制。
在步骤101的一种具体实施方式中，终端设备获取待测量参考信号，待测量参考信号用于对多个候选传输接收点的信道状态进行测量；对待测量参考信号进行测量，并根据测量结果确定至少两个传输接收点对应的码本反馈参数，所述至少两个传输接收点选自多个候选传输接收点。
具体实施中，网络设备可以配置信道状态信息参考信号Channel State Information-Reference Signal，CSI-RS)资源用于信道测量。具体地，网络设备可以包括多个传输接收点，并记为多个候选传输接收点。多个候选传输接收点可以设置于不同的地理位置。网络设备可以通过多个候选传输接收点向终端设备发送待测量参考信号(如CSI-RS)，以测量各个候选传输接收点和终端设备之间的信道状态。待测量参考信号与候选传输接收点一一对应。
终端设备可以对接收到的每个待测量参考信号进行测量，以对终端设备和每个候选传输接收点之间的信道状态进行信道估计，从而得
到多个信道矩阵。信道矩阵与候选传输接收点一一对应，每个信道矩阵用于指示与其对应的候选传输接收点和终端设备之间的信道状态。
本申请实施例所称传输接收点可以是指终端设备从多个候选传输接收点确定的多个参与相干联合传输的传输接收点。终端设备根据上述传输接收点对应的信道矩阵计算得到码本反馈参数。码本反馈参数可以用于计算码本。
本实施例中的码本反馈参数是同时根据多个传输接收点的信道矩阵计算得到的，因此可以支持多个传输接收点进行相干联合传输。
在一个具体实施例中，码本反馈参数包括第二反馈参数、第三反馈参数和第四反馈参数，第二反馈参数用于指示非零系数的幅度和相位，第三反馈参数用于指示频域波束组，第四反馈参数用于指示空域波束组。
码本反馈参数的内容是由码本的结构所定义的。本申请中码本W的结构为W＝W1×W’×WH
frxq，W1表示空域波束矩阵，WH
freq表示频域波束矩阵，W’表示线性加权系数矩阵。更具体地，W1的维度可以是NTX×(m×L)，m为传输接收点的数量，L为每个传输接收点对应的空域波束矢量的数量，每个空域波束矢量用于表示终端设备选择的一个空域波束，NTX表示空域波束矢量的长度。WH
freq的维度可以是N×K，K表示频域波束矢量的数量，每个频域波束矢量用于表示终端设备选择的一个频域波束，N为频域波束矢量的长度。
W’包括多个加权系数矩阵，也就是说，W’是由多个加权系数矩阵拼接得到的。W’的维度可以是(m×L)×K，每个加权系数矩阵的维度可以是L×K，加权系数矩阵和空域波束组一一对应，加权系数矩阵中每个系数对应该加权系数矩阵对应的空域波束组中一个空域波束矢量和频域波束组中一个频域波束矢量。
需要说明的是，NTX、L、N和K均为预配置系数，本申请对此不作限制。
本实施例中所称码本反馈参数即为空域波束矩阵、频域波束矩阵以及系数矩阵各自对应的参数。具体地，码本反馈参数包括第一反馈参数，第一反馈参数用于指示非零系数在系数矩阵中的位置。码本反馈参数还包括第二反馈参数、第三反馈参数和第四反馈参数，第二反馈参数用于指示非零系数的幅度和相位，第三反馈参数用于指示频域波束组，如指示一组选择的频域波束，第四反馈参数用于指示空域波束组，如指示一组选择的空域波束。
本实施例中，码本反馈参数除了包括上述参数之外，还包括上报指示信息。换言之，终端设备在码本反馈参数中增加了一种具体的参数(也即上报指示信息)，以用来指示是否上报第一反馈参数。
若上报指示信息指示不上报第一反馈参数，则终端设备在步骤102中向网络设备发送的码本反馈参数中不包括第一反馈参数，也就意味着终端设备需要反馈的数据量变少，反馈开销降低。
具体实施中，在至少一个传输接收点对应的系数矩阵中的系数均为非零系数时，上报指示信息可以指示不上报该至少一个传输接收点中部分或全部传输接收点对应的第一反馈参数。
若上报指示信息指示上报第一反馈参数，则终端设备在步骤102中向网络设备发送的码本反馈参数中包括第一反馈参数。
在一个具体实施例中，上报指示信息包括所有传输接收点对应的非零系数的总数量。具体地，该总数量可以是终端设备在对待测量参考信号测量完成之后统计得到的。图2示出了该场景下终端设备与网络设备之间的交互流程。
在步骤201中，终端设备比较总数量与所有传输接收点对应的系数之和。通过步骤201的比较结果，可以获知所有传输接收点对应的系数是否均为非零系数。
在步骤202中，终端设备向网络设备发送码本反馈参数。码本反馈参数中包括所有传输接收点对应的非零系数的总数量，也就是说，
终端设备除了向网络设备反馈空域波束矩阵、频域波束矩阵以及系数矩阵相关的参数之外，还同时向网络设备反馈所有传输接收点对应的非零系数的总数量。
根据步骤201中比较结果的不同，步骤202中码本反馈参数的内容有所不同。
在一种情况下，若总数量等于所有传输接收点对应的系数之和，则表示所有传输接收点对应的系数均为非零系数。在这种情况下，码本反馈参数不包括所有传输接收点对应的第一反馈参数。
在另一种情况下，若总数量小于所有传输接收点对应的系数之和，则表示所有传输接收点对应的系数中的部分系数为非零系数。在这种情况下，码本反馈参数还包括所有传输接收点对应的第一反馈参数，也就是说，此时终端设备需要向网络设备反馈所有传输接收点对应的非零系数在系数矩阵中的位置。
在步骤203中，网络设备根据码本反馈参数确定至少两个传输接收点的反馈码本。
具体地，网络设备可以根据码本反馈参数中的第四反馈参数确定空域波束矩阵。网络设备可以根据码本反馈参数中的第三反馈参数确定频域波束矩阵。网络设备可以根据第二反馈参数确定系数矩阵中非零系数的幅度和相位，以及根据第一反馈参数确定系数矩阵中非零系数的位置，从而获得线性加权系数矩阵。或者，网络设备根据上报指示信息确定线性加权系数矩阵中全部系数均为非零系数，那么网络设备可以结合第二反馈参数确定系数矩阵中所有非零系数的幅度和相位，以获得线性加权系数矩阵。至此，网络设备可以获得反馈码本。
需要说明的是，关于网络设备根据码本反馈参数确定反馈码本的具体实施方式可以参照现有技术，此处不再赘述。
在另一个具体实施例中，上报指示信息包括每一传输接收点对应的非零系数的数量。具体地，该数量可以是终端设备在对待测量参考
信号测量完成之后统计得到的。图3示出了该场景下终端设备与网络设备之间的交互流程。
在步骤301中，终端设备比较每一传输接收点对应的非零系数的数量与该传输接收点对应的系数的数量。通过步骤201的比较结果，可以获知每一传输接收点对应的系数是否均为非零系数。
在步骤302中，终端设备向网络设备发送码本反馈参数。码本反馈参数中包括每一传输接收点对应的非零系数的数量，也就是说，终端设备除了向网络设备反馈空域波束矩阵、频域波束矩阵以及系数矩阵相关的参数之外，还同时向网络设备反馈每一传输接收点对应的非零系数的数量。
根据步骤301中比较结果的不同，步骤302中码本反馈参数的内容有所不同。
在一种情况下，若传输接收点对应的非零系数的数量等于该传输接收点对应的系数的数量，则表示该传输接收点对应的系数均为非零系数。在这种情况下，码本反馈参数不包括该传输接收点对应的第一反馈参数。
例如，传输接收点1、传输接收点2和传输接收点3采用相干联合传输，传输接收点1对应的系数的数量为4、传输接收点2对应的系数的数量为9和传输接收点3对应的系数的数量为12。终端设备通过测量结果统计得到传输接收点1对应的非零系数的数量为4、传输接收点2对应的非零系数的数量为9和传输接收点3对应的非零系数的数量为10。在这种情况下，传输接收点1、传输接收点2对应的系数均为非零系数，则终端设备在码本反馈参数中不再上报传输接收点1、传输接收点2对应的非零系数的位置(也即第一反馈参数)。
在另一种情况下，若传输接收点对应的非零系数的数量小于该传输接收点对应的系数的数量，则表示该传输接收点对应的系数中的部分系数为非零系数。在这种情况下，码本反馈参数还包括该传输接收
点对应的第一反馈参数，也就是说，此时终端设备需要向网络设备反馈该传输接收点对应的非零系数在系数矩阵中的位置。
在步骤303中，网络设备根据码本反馈参数确定至少两个传输接收点的反馈码本。
本申请实施例可以实现对单个传输接收点的第一反馈参数的上报控制，进一步降低了码本反馈的反馈开销。进一步而言，相对有所有传输接收点对应的系数均为非零系数的情况，单个传输接收点对应的系数均为非零系数的情况发生的概率更大。那么通过对单个传输接收点的第一反馈参数的上报控制，能够增加降低反馈开销的概率，从整体上降低反馈开销。
在另一个具体实施例中，上报指示信息包括传输接收点指示信息。图4示出了该场景下终端设备与网络设备之间的交互流程。
在步骤401中，终端设备确定传输接收点指示信息。传输接收点指示信息具体可以是传输接收点的标识，也可以是传输接收点的比特图(bitmap)。
在步骤402中，终端设备向网络设备发送码本反馈参数。码本反馈参数中包括传输接收点指示信息，也就是说，终端设备除了向网络设备反馈空域波束矩阵、频域波束矩阵以及系数矩阵相关的参数之外，还同时向网络设备反馈传输接收点指示信息。
根据步骤401中传输接收点指示信息还可以确定码本反馈参数中是否包括第一反馈参数，以及包括哪些传输接收点对应的第一反馈参数。
如果传输接收点指示信息为传输接收点的标识，则码本反馈参数中不包括该传输接收点的标识指示的传输接收点对应的第一反馈参数。
如果传输接收点指示信息为比特图，比特图中每一比特对应一个传输接收点，则对于比特图中比特值1指示的传输接收点，码本反馈
参数中不包括该传输接收点对应的第一反馈参数。例如，传输接收点1、传输接收点2和传输接收点3采用相干联合传输，比特图为110时，终端设备在码本反馈参数中不再上报传输接收点1、传输接收点2对应的第一反馈参数。
当然，也可以是对于比特图中比特值0指示的传输接收点，码本反馈参数中不包括该传输接收点对应的第一反馈参数，本申请对此不作限制。
进一步地，终端设备除了向网络设备反馈传输接收点指示信息、空域波束矩阵、频域波束矩阵以及系数矩阵相关的参数之外，还同时向网络设备反馈传输接收点对应的非零系数的数量。也就是说，码本反馈参数中不包括无需上报对应的第一反馈参数的传输接收点对应的非零系数的数量，码本反馈参数中包括的是其他传输接收点对应的非零系数的数量，其他传输接收点为至少两个传输接收点中除无需上报对应的第一反馈参数的传输接收点之外的传输接收点。
在步骤403中，网络设备根据码本反馈参数确定至少两个传输接收点的反馈码本。
关于本申请实施例的更多具体实现方式，请参照前述实施例，此处不再赘述。
请参照图5，图5示出了一种通信装置50，通信装置50可以包括：
处理模块501，用于确定至少两个传输接收点对应的码本反馈参数，所述码本反馈参数包括上报指示信息，所述上报指示信息用于指示是否上报第一反馈参数，所述第一反馈参数用于指示非零系数在系数矩阵中的位置；
通信模块502，用于发送所述码本反馈参数。
在具体实施中，上述通信装置50可以对应于终端设备中具有码本反馈功能的芯片，例如片上系统(System-On-a-Chip，SOC)、基带
芯片等；或者对应于终端设备中包括具有码本反馈功能的芯片模组；或者对应于具有数据处理功能芯片的芯片模组，或者对应于终端设备。
在另一个实施例中，通信装置50可以包括：通信模块502，用于接收至少两个传输接收点对应的码本反馈参数，所述码本反馈参数包括上报指示信息，所述上报指示信息用于指示是否上报第一反馈参数，所述第一反馈参数用于指示非零系数在系数矩阵中的位置。
在具体实施中，上述通信装置50可以对应于网络设备中具有码本接收功能的芯片，例如SOC、基带芯片等；或者对应于网络设备中包括具有码本接收功能的芯片模组；或者对应于具有数据处理功能芯片的芯片模组，或者对应于网络设备。
关于通信装置50的其他相关描述可以参照前述实施例中的相关描述，此处不再赘述。
关于上述实施例中描述的各个装置、产品包含的各个模块/单元，其可以是软件模块/单元，也可以是硬件模块/单元，或者也可以部分是软件模块/单元，部分是硬件模块/单元。例如，对于应用于或集成于芯片的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于芯片模组的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于芯片模组的同一组件(例如芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片模组内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于终端设备的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于终端设备内同一组件(例如，芯片、电路模块等)
或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于终端设备内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现。
本申请实施例还公开了一种存储介质，所述存储介质为计算机可读存储介质，其上存储有计算机程序，所述计算机程序运行时可以执行图1至图4中所示方法的步骤。所述存储介质可以包括只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁盘或光盘等。存储介质还可以包括非挥发性存储器(non-volatile)或者非瞬态(non-transitory)存储器等。
请参照图6，本申请实施例还提供了一种通信装置的硬件结构示意图。该装置包括处理器601、存储器602和收发器603。
处理器601可以是一个通用中央处理器(central processing unit，CPU)、微处理器、特定应用集成电路(application-specific integrated circuit，ASIC)，或者一个或多个用于控制本申请方案程序执行的集成电路。处理器601也可以包括多个CPU，并且处理器601可以是一个单核(single-CPU)处理器，也可以是多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路或用于处理数据(例如计算机程序指令)的处理核。
存储器602可以是ROM或可存储静态信息和指令的其他类型的静态存储设备、RAM或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compactdisc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，本申请实施例对此不作任何限制。存储器602可以是独立存在(此时，存储器602可以位于该装置外，也可以位于该装置内)，也可以和处理器601
集成在一起。其中，存储器602中可以包含计算机程序代码。处理器601用于执行存储器602中存储的计算机程序代码，从而实现本申请实施例提供的方法。
处理器601、存储器602和收发器603通过总线相连接。收发器603用于与其他设备或通信网络通信。可选的，收发器603可以包括发射机和接收机。收发器603中用于实现接收功能的器件可以视为接收机，接收机用于执行本申请实施例中的接收的步骤。收发器603中用于实现发送功能的器件可以视为发射机，发射机用于执行本申请实施例中的发送的步骤。
当图6所示的结构示意图用于示意上述实施例中所涉及的终端设备的结构时，处理器601用于对终端设备的动作进行控制管理，例如，处理器601用于支持终端设备执行图1中的步骤101和步骤102，或者图2中的步骤201、步骤202，或者图3中的步骤301、步骤302，或者图4中的步骤401、步骤402，和/或本申请实施例中所描述的其他过程中的终端设备执行的动作。处理器601可以通过收发器603与其他网络实体通信，例如，与上述网络设备通信。存储器602用于存储终端设备的程序代码和数据。
当图6所示的结构示意图用于示意上述实施例中所涉及的网络设备的结构时，处理器601用于对网络设备的动作进行控制管理，例如，处理器601用于支持网络设备执行图1中的步骤102，或者图2中的步骤202和步骤203，或者图3中的步骤302和步骤303，或者图4中的步骤402和步骤403，和/或本申请实施例中所描述的其他过程中的网络设备执行的动作。处理器601可以通过收发器603与其他网络实体通信，例如，与上述终端设备通信。存储器602用于存储网络设备的程序代码和数据。
本申请实施例定义接入网到终端设备的单向通信链路为下行链路，在下行链路上传输的数据为下行数据，下行数据的传输方向称为下行方向；而终端设备到接入网的单向通信链路为上行链路，在上行
链路上传输的数据为上行数据，上行数据的传输方向称为上行方向。
应理解，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“/“，表示前后关联对象是一种“或”的关系。
本申请实施例中出现的“多个”是指两个或两个以上。
本申请实施例中出现的第一、第二等描述，仅作示意与区分描述对象之用，没有次序之分，也不表示本申请实施例中对设备个数的特别限定，不能构成对本申请实施例的任何限制。
本申请实施例中出现的“连接”是指直接连接或者间接连接等各种连接方式，以实现设备间的通信，本申请实施例对此不做任何限定。
上述实施例，可以全部或部分地通过软件、硬件、固件或其他任意组合来实现。当使用软件实现时，上述实施例可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令或计算机程序。在计算机上加载或执行所述计算机指令或计算机程序时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以为通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线或无线方式向另一个网站站点、计算机、服务器或数据中心进行传输。
应理解，在本申请的各种实施例中，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。
在本申请所提供的几个实施例中，应该理解到，所揭露的方法、装置和系统，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包括，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元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部分步骤。
虽然本申请披露如上，但本申请并非限定于此。任何本领域技术人员，在不脱离本申请的精神和范围内，均可作各种更动与修改，因此本申请的保护范围应当以权利要求所限定的范围为准。
Claims (19)
- 一种码本反馈方法，其特征在于，包括：确定至少两个传输接收点对应的码本反馈参数，所述码本反馈参数包括上报指示信息，所述上报指示信息用于指示是否上报第一反馈参数，所述第一反馈参数用于指示非零系数在系数矩阵中的位置；发送所述码本反馈参数。
- 根据权利要求1所述的码本反馈方法，其特征在于，所述上报指示信息包括所有传输接收点对应的非零系数的总数量。
- 根据权利要求2所述的码本反馈方法，其特征在于，所述确定至少两个传输接收点对应的码本反馈参数包括：比较所述总数量与所有传输接收点对应的系数之和；若所述总数量等于所有传输接收点对应的系数之和，则确定所述码本反馈参数不包括所有传输接收点对应的第一反馈参数；若所述总数量小于所有传输接收点对应的系数之和，则确定所述码本反馈参数包括所有传输接收点对应的第一反馈参数。
- 根据权利要求1所述的码本反馈方法，其特征在于，所述上报指示信息包括每一传输接收点对应的非零系数的数量。
- 根据权利要求4所述的码本反馈方法，其特征在于，所述确定至少两个传输接收点对应的码本反馈参数包括：比较每一传输接收点对应的非零系数的数量与该传输接收点对应的系数的数量；若传输接收点对应的非零系数的数量等于该传输接收点对应的系数的数量，则确定所述码本反馈参数不包括该传输接收点对应的第一反馈参数；若传输接收点对应的非零系数的数量小于该传输接收点对应的系数的数量，则确定所述码本反馈参数包括该传输接收点对应的第一反馈参数。
- 根据权利要求1所述的码本反馈方法，其特征在于，所述上报指示信息包括传输接收点指示信息，所述传输接收点指示信息指示无需上报对应的第一反馈参数的传输接收点，或者指示是否上报各个传输接收点对应的第一反馈参数。
- 根据权利要求6所述的码本反馈方法，其特征在于，所述确定至少两个传输接收点对应的码本反馈参数包括：根据所述传输接收点指示信息确定无需上报对应的第一反馈参数的传输接收点，并确定所述码本反馈参数中不包括该传输接收点对应的第一反馈参数。
- 根据权利要求7所述的码本反馈方法，其特征在于，所述确定至少两个传输接收点对应的码本反馈参数还包括：确定所述码本反馈参数中不包括该传输接收点对应的非零系数的数量。
- 根据权利要求1至8任一项所述的码本反馈方法，其特征在于，所述码本反馈参数还包括第二反馈参数、第三反馈参数和第四反馈参数，所述第二反馈参数用于指示非零系数的幅度和相位，所述第三反馈参数用于指示频域波束组，所述第四反馈参数用于指示空域波束组。
- 根据权利要求1至8任一项所述的码本反馈方法，其特征在于，所述确定至少两个传输接收点中每一传输接收点对应的码本反馈参数包括：获取待测量参考信号，所述待测量参考信号用于对多个候选传输接收点的信道状态进行测量；对所述待测量参考信号进行测量，并根据测量结果确定所述至少两个传输接收点对应的码本反馈参数，所述至少两个传输接收点选自所述多个候选传输接收点。
- 一种码本接收方法，其特征在于，包括：接收至少两个传输接收点对应的码本反馈参数，所述码本反馈参数包括上报指示信息，所述上报指示信息用于指示是否上报第一反馈参数，所述第一反馈参数用于指示非零系数在系数矩阵中的位置。
- 根据权利要求11所述的码本接收方法，其特征在于，所述上报指示信息包括所有传输接收点对应的非零系数的总数量，所述方法还包括：比较所述总数量与所有传输接收点对应的系数之和；若所述总数量等于所有传输接收点对应的系数之和，则确定所述码本反馈参数不包括所有传输接收点对应的第一反馈参数；若所述总数量小于所有传输接收点对应的系数之和，则确定所述码本反馈参数包括所有传输接收点对应的第一反馈参数。
- 根据权利要求11所述的码本接收方法，其特征在于，所述上报指示信息包括每一传输接收点对应的非零系数的数量，所述方法还包括：比较每一传输接收点对应的非零系数的数量与该传输接收点对应的系数的数量；若传输接收点对应的非零系数的数量等于该传输接收点对应的系数的数量，则确定该传输接收点的码本反馈参数不包括该传输接收点对应的第一反馈参数；若传输接收点对应的非零系数的数量小于该传输接收点对应的系数的数量，则确定该传输接收点的码本反馈参数包括该传输接收 点对应的第一反馈参数。
- 根据权利要求11所述的码本接收方法，其特征在于，所述上报指示信息包括传输接收点指示信息，所述传输接收点指示信息指示无需上报对应的第一反馈参数的传输接收点，或者指示是否上报各个传输接收对应的第一反馈参数；所述方法还包括：根据所述传输接收点指示信息确定无需上报对应的第一反馈参数的传输接收点，并确定所述码本反馈参数中不包括该传输接收点对应的第一反馈参数。
- 一种通信装置，其特征在于，包括：处理模块，用于确定至少两个传输接收点对应的码本反馈参数，所述码本反馈参数包括上报指示信息，所述上报指示信息用于指示是否上报第一反馈参数，所述第一反馈参数用于指示非零系数在系数矩阵中的位置；通信模块，用于发送所述码本反馈参数。
- 一种通信装置，其特征在于，包括：通信模块，用于接收至少两个传输接收点对应的码本反馈参数，所述码本反馈参数包括上报指示信息，所述上报指示信息用于指示是否上报第一反馈参数，所述第一反馈参数用于指示非零系数在系数矩阵中的位置。
- 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被计算机运行时执行权利要求1至10中任一项码本反馈方法的步骤，或者执行权利要求11至14中任一项码本接收方法的步骤。
- 一种终端设备，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，其特征在于，所述处理器运行所述计算机程序时执行权利要求1至10中任一项码本反馈方法的 步骤。
- 一种网络设备，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，其特征在于，所述处理器运行所述计算机程序时执行权利要求11至14中任一项码本接收方法的步骤。
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| WO2022036720A1 (zh) * | 2020-08-21 | 2022-02-24 | Oppo广东移动通信有限公司 | 码本处理方法、终端设备和网络设备 |
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- 2023-11-03 WO PCT/CN2023/129514 patent/WO2024094153A1/zh unknown
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| CN117997390A (zh) | 2024-05-07 |
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