A CSI report acquisition method and a communication device

Abstract

The application discloses a CSI report acquisition method and a communication device. The method comprises the following steps: receiving network information; and obtaining a CSI report based on the network information, wherein the CSI report comprises a CSI measurement result under a coherent joint transmission assumption of one or more stations. According to the method, the terminal device can obtain the CSI report under the coherent joint transmission assumption of the one or more stations.

Description

Technical Field

[0001] This invention relates to the field of communications, and more particularly to a method and device for obtaining CSI reports. Background Technology

[0002] Currently, in New Radio (NR) R15 / R16 systems, Channel State Information (CSI) reports consist of two parts. The first part has a fixed payload size and can be used to determine the number of information bits in the second part. However, a single CSI report only contains CSI measurements under the assumption of transmission at one site. Therefore, obtaining CSI reports under the assumption of coherent joint transmission at one or more sites is a problem that urgently needs to be solved. Summary of the Invention

[0003] This application provides a CSI report acquisition method and communication device, under the assumption of coherent joint transmission at one or more sites, enabling a terminal device to obtain CSI reports.

[0004] In a first aspect, this application provides a method for obtaining a CSI report, the method comprising: receiving network information; and obtaining a CSI report based on the network information, the CSI report including CSI measurement results under the assumption of coherent joint transmission of one or more sites.

[0005] Based on the method described in the first aspect, network information is received, and then a CSI report is obtained based on the network information. The CSI report includes CSI measurement results under the assumption of coherent joint transmission at one or more sites. Therefore, using this method, the terminal device can obtain a CSI report under the assumption of coherent joint transmission at one or more sites.

[0006] In one possible implementation, the network information includes codebook type indication information used to indicate the codebook type in the CSI report.

[0007] In one possible implementation, the codebook type includes a first codebook type and a second codebook type, wherein the first codebook type is used to indicate the acquisition of the frequency domain codebook of each of the multiple sites, and the second codebook type is used to indicate the joint acquisition of the frequency domain codebook of the sites.

[0008] In one possible implementation, the network information includes a first parameter used to determine the codebook type.

[0009] In one possible implementation, the first parameter includes a threshold value for the number of sites.

[0010] In one possible implementation, the codebook type includes a first codebook type and a second codebook type, wherein the first codebook type is used to indicate the acquisition of the frequency domain codebook of each of the multiple sites, and the second codebook type is used to indicate the joint acquisition of the frequency domain codebook of the site. The method further includes: if the number of sites included in the CSI report is greater than the number threshold, then the codebook type in the CSI report is determined to be the first codebook type.

[0011] In one possible implementation, the method further includes: if the number of sites included in the CSI report is less than or equal to the number threshold, then determining that the codebook type in the CSI report is a second codebook type.

[0012] In one possible implementation, the CSI report includes first information and second information.

[0013] In one possible implementation, the first information includes at least one of the following: information on the number of sites, information on the number of non-zero broadband amplitude coefficients, and reference resource index indication information.

[0014] In one possible implementation, the second information includes all or part of the CSI measurement results of the site.

[0015] In one possible implementation, the reference resource index indication information is obtained via a bitmap.

[0016] In one possible implementation, the second information includes at least one of the following: spatial codebook information for each station in the CSI report, frequency codebook information for each station in the CSI report, and non-zero coefficient information for each station in the CSI report; wherein the frequency codebook information for each station may be the same or different.

[0017] In one possible implementation, the second information includes i sets of information, where the value of i is the number of sites included in the CSI report.

[0018] In one possible implementation, a site's CSI measurement results correspond to a set of information.

[0019] In one possible implementation, the CSI measurement results of the site include at least one of the following: reference amplitude information of non-zero coefficients, spatial codebook information, frequency codebook information, non-zero coefficient information, reference signal resource indicator index, or reference signal resource indicator index code point.

[0020] In one possible implementation, the second information includes i sets of information, where i = j + 1, and j is the number of sites included in the CSI report.

[0021] In one possible implementation, the first group of information in group i includes the spatial codebook information for each site.

[0022] In one possible implementation, the information in group i, excluding the first group, is as follows: a group of information corresponds to part / all of the CSI measurement results of a site.

[0023] In one possible implementation, the partial / full CSI measurement results of the site include at least one of the following: reference amplitude information of the non-zero coefficients of the site, frequency domain codebook information of the site, and non-zero coefficient information of the site.

[0024] In one possible implementation, the second information includes i sets of information; the x-th set of information in the i-th set includes at least one of the following: frequency domain codebook information for each station, and non-zero coefficient reference positions for each station, where x is a positive integer; the y-th set of information in the i-th set includes spatial domain codebook information for each station, where y is a positive integer; and the z-th set of information in the i-th set includes non-zero coefficient information for each station, where z is a positive integer.

[0025] In one possible implementation, the second information includes i sets of information, where i = j + 2, and j is the number of sites included in the CSI report.

[0026] In one possible implementation, the first group of information in group i includes the spatial codebook information for each site.

[0027] In one possible implementation, the second group of information in group i includes at least one of the following: frequency domain codebook information for each station, and reference amplitude information for each station.

[0028] In one possible implementation, the frequency domain codebook information is identical for each station.

[0029] In one possible implementation, the information in group i, excluding group 1 and group 2, is as follows: a group of information corresponds to part / all of the CSI measurement results of a site.

[0030] In one possible implementation, the partial / full CSI measurement results of the site include at least one of the following: reference amplitude information of the non-zero coefficients of the site, and information of the non-zero coefficients of the site.

[0031] In one possible implementation, the i groups of information are arranged in order of priority.

[0032] In one possible implementation, the CSI report also includes codebook type information, which indicates the codebook type in the CSI report.

[0033] Secondly, this application provides a CSI report acquisition method, which includes: acquiring a CSI report, the CSI report including CSI measurement results under the assumption of coherent joint transmission at one or more sites; and determining the channel state based on the CSI report.

[0034] Based on the method described in the second aspect, a CSI report is obtained, and then the channel state is determined based on the CSI report, wherein the CSI report includes CSI measurement results under the assumption of coherent joint transmission at one or more sites. Therefore, this method enables the determination of the channel state from the CSI report under the assumption of coherent joint transmission at one or more sites.

[0035] In one possible implementation, the CSI report includes first information and second information.

[0036] In one possible implementation, the first information includes at least one of the following: information on the number of sites, information on the number of non-zero broadband amplitude coefficients, and reference resource index indication information.

[0037] In one possible implementation, the second information includes all or part of the CSI measurement results of the site.

[0038] In one possible implementation, the reference resource index indication information is obtained via a bitmap.

[0039] In one possible implementation, the second information includes at least one of the following: spatial codebook information for each station in the CSI report, frequency codebook information for each station in the CSI report, and non-zero coefficient information for each station in the CSI report; wherein the frequency codebook information for each station may be the same or different.

[0040] In one possible implementation, the second information includes i sets of information, where the value of i is the number of sites included in the CSI report.

[0041] In one possible implementation, a site's CSI measurement results correspond to a set of information.

[0042] In one possible implementation, the CSI measurement results of the site include at least one of the following: reference amplitude information of non-zero coefficients, spatial codebook information, frequency codebook information, non-zero coefficient information, reference signal resource indicator index, or reference signal resource indicator index code point.

[0043] In one possible implementation, the second information includes i sets of information, where i = j + 1, and j is the number of sites included in the CSI report.

[0044] In one possible implementation, the first group of information in group i includes the spatial codebook information for each site.

[0045] In one possible implementation, the information in group i, excluding the first group, is as follows: a group of information corresponds to part / all of the CSI measurement results of a site.

[0046] In one possible implementation, the partial / full CSI measurement results of the site include at least one of the following: reference amplitude information of the non-zero coefficients of the site, frequency domain codebook information of the site, and non-zero coefficient information of the site.

[0047] In one possible implementation, the second information includes i sets of information; the x-th set of information in the i-th set includes at least one of the following: frequency domain codebook information for each station, and non-zero coefficient reference positions for each station, where x is a positive integer; the y-th set of information in the i-th set includes spatial domain codebook information for each station, where y is a positive integer; and the z-th set of information in the i-th set includes non-zero coefficient information for each station, where z is a positive integer.

[0048] In one possible implementation, the second information includes i sets of information, where i = j + 2, and j is the number of sites included in the CSI report.

[0049] In one possible implementation, the first group of information in group i includes the spatial codebook information for each site.

[0050] In one possible implementation, the second group of information in group i includes at least one of the following: frequency domain codebook information for each station, and reference amplitude information for each station.

[0051] In one possible implementation, the frequency domain codebook information is identical for each station.

[0052] In one possible implementation, the information in group i, excluding group 1 and group 2, is as follows: a group of information corresponds to part / all of the CSI measurement results of a site.

[0053] In one possible implementation, the partial / full CSI measurement results of the site include at least one of the following: reference amplitude information of the non-zero coefficients of the site, and information of the non-zero coefficients of the site.

[0054] In one possible implementation, the i groups of information are arranged in order of priority.

[0055] In one possible implementation, the CSI report also includes codebook type information, which indicates the codebook type in the CSI report.

[0056] Thirdly, this application provides a communication device for implementing the methods in the first or second aspect and any possible implementation thereof.

[0057] Fourthly, this application provides a communication device, the communication device including a processor, the processor being configured to execute the methods of the first aspect or the second aspect and any possible implementation thereof.

[0058] Fifthly, this application provides a communication device, the communication device including a processor and a memory, the memory being used to store computer execution instructions; the processor being used to call the program code from the memory to execute the method in the first aspect or the second aspect and any possible implementation thereof.

[0059] In a sixth aspect, this application provides a communication device, the communication device including a processor and a transceiver, the transceiver being used to receive or transmit signals; the processor being used to execute the methods of the first aspect or the second aspect and any possible implementation thereof.

[0060] In a seventh aspect, this application provides a communication device, the communication device including a processor, a memory, and a transceiver, the transceiver being used to receive or transmit signals; the memory being used to store program code; and the processor being used to call the program code from the memory to execute a method as described in the first aspect or the second aspect and any possible implementation thereof.

[0061] Eighthly, this application provides a chip for receiving network information; the chip is used to obtain a CSI report based on the network information, the CSI report including CSI measurement results under the assumption of coherent joint transmission of one or more sites.

[0062] Ninthly, this application provides a chip for acquiring a CSI report, the CSI report including CSI measurement results under the assumption of coherent joint transmission at one or more sites; the chip is used to determine the channel state based on the CSI report.

[0063] In a tenth aspect, this application provides a module device, which includes a communication module, a power module, a storage module, and a chip module, wherein: the power module is used to provide power to the module device; the storage module is used to store data and instructions; the communication module is used for internal communication within the module device, or for communication between the module device and external devices; and the chip module is used to: trigger the communication module to receive network information; and obtain a CSI report based on the network information, the CSI report including CSI measurement results under the assumption of coherent joint transmission at one or more sites.

[0064] In one aspect, this application provides a module device, which includes a communication module, a power module, a storage module, and a chip module, wherein: the power module is used to provide power to the module device; the storage module is used to store data and instructions; the communication module is used for internal communication within the module device, or for communication between the module device and external devices; the chip module is used to: trigger the communication module to acquire a CSI report, the CSI report including CSI measurement results under one or more site coherent joint transmission assumptions; and determine the channel state based on the CSI report.

[0065] In a twelfth aspect, this application provides a computer-readable storage medium storing computer-readable instructions that, when executed on a communication device, cause the communication device to perform the methods described in the first or second aspect and any possible implementation thereof.

[0066] In a thirteenth aspect, this application provides a computer program or computer program product, including code or instructions that, when run on a computer, cause the computer to perform the methods described in the first or second aspect and any possible implementation thereof. Attached Figure Description

[0067] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0068] Figure 1 This is a schematic diagram of a network architecture provided in an embodiment of this application;

[0069] Figure 2 This is a flowchart illustrating a CSI report acquisition method provided in an embodiment of this application;

[0070] Figure 3 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0071] Figure 4 This is a schematic diagram of the structure of another communication device provided in the embodiments of this application;

[0072] Figure 5 This is a schematic diagram of the structure of a module device provided in an embodiment of this application. Detailed Implementation

[0073] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0074] The terminology used in the following embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to include the plural expressions as well, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this application refers to and includes any or all possible combinations of one or more of the listed items.

[0075] It should be noted that the terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the term "comprising" and any variations thereof are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0076] First, some of the terms used in the embodiments of this application will be explained to facilitate understanding by those skilled in the art.

[0077] 1. Terminal equipment:

[0078] The terminal device in this application embodiment is a device with wireless communication capabilities, and may be referred to as a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), access terminal device, vehicle-mounted terminal device, industrial control terminal device, UE unit, UE station, mobile station, remote station, remote terminal device, mobile device, UE terminal device, wireless communication device, UE agent, or UE device, etc. The terminal device can be fixed or mobile. It should be noted that the terminal device can support at least one wireless communication technology, such as LTE, New Radio (NR), etc. For example, terminal devices can be mobile phones, tablets, desktop computers, laptops, all-in-one computers, in-vehicle terminals, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, wearable devices, terminal devices in future mobile communication networks, or terminal devices in future evolved public land mobile networks (PLMNs), etc. In some embodiments of this application, the terminal device may also be a device with transceiver functions, such as a chip system. The chip system may include chips, but may also include other discrete components; this application does not limit this.

[0079] 2. Network equipment:

[0080] In this application embodiment, the network device is a device that provides wireless communication functions for terminal devices, and can also be referred to as a radio access network (RAN) device or access network element. The network device can support at least one wireless communication technology, such as LTE, NR, etc. For example, the network device includes, but is not limited to: next-generation base stations (gNB), evolved node B (eNB), radio network controllers (RNC), node Bs (NBs), base station controllers (BSCs), base transceiver stations (BTSs), home base stations (e.g., home evolved node B, or home node B, HNB), baseband units (BBUs), mobile switching centers, etc., in 5th-generation (5G) mobile communication systems. Network devices can also be wireless controllers, centralized units (CUs), and / or distributed units (DUs) in cloud radioaccess network (CRAN) scenarios, or they can be relay stations, access points, vehicle-mounted devices, terminal devices, wearable devices, and network devices in future mobile communications or future evolved PLMNs. In some embodiments, network devices can also be means for providing wireless communication capabilities to terminal devices, such as a chip system. For example, a chip system may include chips, and may also include other discrete components. In some embodiments, network devices can also communicate with Internet Protocol (IP) networks, such as the Internet, private IP networks, or other data networks.

[0081] In this embodiment of the application, the station may refer to a remote radio head (RRH) or a transmission and reception point (TRP), and is not limited thereto.

[0082] 3. Channel state information:

[0083] Channel State Information (CSI) reports are channel state information used by terminal devices to feed back downlink channel quality to network devices. This allows the network devices to select an appropriate modulation and coding scheme (MCS) for downlink data transmission, reducing the block error rate (BLER) of downlink data transmission. Typically, a CSI report may consist of one or more of the following: Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI), Channel State Information Reference Signal Resource Indicator (CSI-RS Resource Indicator, CRI), Synchronization Signal Block Resource Indicator (SS / PBCH Block Resource Indicator, SSBRI), Layer Indicator (LI), Rank Indicator (RI), and Layer 1 Reference Signal Received Power (L1-RSRP). The time-frequency domain resources required for its transmission are controlled by the network devices. CSI reports can be submitted via the Physical Uplink Control Channel (PUCCH) or the Physical Uplink Shared Channel (PUSCH).

[0084] A CSI report in New Radio (NR) R15 / R16 comprises two parts. The first part has a fixed payload size and serves to confirm the number of information bits in the second part. A CSI report contains only CSI measurements under the assumption of a single site transmission, as follows:

[0085] (1) Type I CSI feedback: The first part includes RI, CRI, and CQI of the first codeword; the second part includes PMI and CQI of the second codeword when RI is greater than 4.

[0086] (2) Type II CSI feedback: The first part includes RI, CQI, and an indication of the number of non-zero broadband amplitude coefficients in each layer; the second part includes PMI.

[0087] (3) Enhanced Type II CSI Feedback: The first part includes RI, CQI, and an indication of the total number of non-zero amplitude coefficients across all layers; the second part includes PMI.

[0088] In addition, coherent joint transmission of multiple sender and receiver points can be understood as joint coherent transmission of multiple TRPs or RRHs, or different data belonging to the same PDSCH being sent from different TRPs to the terminal device, or multiple TRPs or RRHs being virtualized into one TRP or RRH for transmission. Names with the same meaning as those specified in other standards also apply to this application, that is, this application does not limit the names of these parameters.

[0089] The embodiments of this application can be applied to, for example... Figure 1 The network architecture diagram shown is as follows: Figure 1 The network architecture shown is that of a wireless communication system. This network architecture typically includes terminal devices and network devices. The number and form of each device do not constitute a limitation on the embodiments of this application. The network device can be a base station (BS). A base station can provide communication services to multiple terminal devices, and multiple base stations can also provide communication services to the same terminal device.

[0090] It should be noted that in the NR R15 / R16 system, a CSI report only contains CSI measurement results under the assumption of one site's transmission. Therefore, how to obtain CSI reports under the assumption of coherent joint transmission at one or more sites is an urgent problem to be solved.

[0091] To enable terminal devices to obtain CSI reports under the assumption of coherent joint transmission at one or more sites, embodiments of this application provide a CSI report acquisition method. To better understand the CSI report acquisition method provided in these embodiments, the method is described in detail below.

[0092] Please see Figure 2 , Figure 2 This is a flowchart of a CSI report acquisition method provided in an embodiment of this application. The CSI report acquisition method includes steps 201 to 204. Figure 2 The method shown can be executed by a terminal device (for example, refer to...). Figure 1 (As shown), or the main body can be a chip in the terminal device. Figure 2 The method shown is implemented using a terminal device as an example. This method includes, but is not limited to, the following steps.

[0093] 201. Terminal equipment receives network information.

[0094] In this embodiment, the terminal device receives network information sent by the network device. Subsequently, the terminal device can obtain a CSI report under the assumption of coherent joint transmission at one or more sites based on the network information. Here, a site can refer to RRH or TRP, and is not limited thereto. Optionally, the network information may include codebook type indication information, which is used to indicate the codebook type in the CSI report, or the codebook type indication information is used to indicate the codebook type of the codebook in the CSI report.

[0095] In one possible implementation, the codebook type includes a first codebook type and a second codebook type. The first codebook type indicates the acquisition of the frequency domain codebook for each of one or more stations, and the second codebook type indicates the joint acquisition of the frequency domain codebook for one or more stations. For the first codebook type, the frequency domain codebook for each station is acquired individually by each station; that is, the frequency domain codebook for each station can be different. For the second codebook type, the frequency domain codebook for each station is jointly acquired by all stations; that is, all stations use an aggregation method to determine the frequency domain codebook, and all stations use this frequency domain codebook for their frequency domain codebook information.

[0096] In one possible implementation, the network information includes a first parameter used to determine the codebook type. Optionally, the first parameter includes a threshold value for the number of stations. This threshold value can be configured by the network device.

[0097] Further optionally, the method further includes: if the number of sites included in the CSI report is greater than the number threshold, the terminal device determines that the codebook type in the CSI report is the first codebook type.

[0098] Further optionally, the method further includes: if the number of sites included in the CSI report is less than or equal to the number threshold, the terminal device determines that the codebook type in the CSI report is a second codebook type.

[0099] For example, if the number of sites threshold is 6 and the CSI report contains 7 sites, then the number of sites in the CSI report is greater than the number threshold. Therefore, the terminal device determines that the codebook type in the CSI report is the first codebook type, that is, the frequency domain codebooks corresponding to the sites in the CSI report are obtained separately for each site.

[0100] For example, if the threshold for the number of sites is 6 and the CSI report contains 5 sites, then the number of sites in the CSI report is less than the threshold. Therefore, the terminal device determines that the codebook type in the CSI report is the second codebook type, that is, the frequency domain codebook corresponding to the sites in the CSI report is jointly obtained by all sites.

[0101] Further optionally, the method further includes: if the number of sites included in the CSI report is greater than the number threshold, the terminal device determines that the codebook type in the CSI report is a second codebook type.

[0102] Further optionally, the method further includes: if the number of sites included in the CSI report is less than or equal to the number threshold, the terminal device determines that the codebook type in the CSI report is the first codebook type.

[0103] 202. The terminal device obtains a CSI report based on the network information. The CSI report includes CSI measurement results under the assumption of coherent joint transmission of one or more sites.

[0104] In this embodiment, under the assumption of coherent joint transmission at one or more sites, the terminal device can determine the codebook type in the CSI report based on the codebook type indication information included in the network information, thereby obtaining the CSI report. This approach facilitates the acquisition of CSI reports by the terminal device under the assumption of coherent joint transmission at one or more sites.

[0105] In one possible implementation, the CSI report includes first information and second information. Optionally, the first information includes at least one of the following: information on the number of sites, information on the number of non-zero bandwidth magnitude coefficients, and reference resource index indication information. Optionally, the second information includes all or part of the CSI measurement results for the sites.

[0106] The payload size of the first information is fixed, and the first information can be used to confirm the number of information bits of the second information. The first information can be CSI part 1, and the second information can be CSI part 2. This patent does not limit the naming of the first and second information.

[0107] It should be noted that the number of sites can be obtained directly or indirectly through other information, and this is not limited here. For example, the number of sites can be determined by referencing the number of resource indexes and / or the reference resource index code points. Furthermore, the number of non-zero coefficients for a site can be the number of non-zero coefficients for each site included in the CSI report, or it can be the number of non-zero coefficients for all sites included in the CSI report. The number of non-zero coefficients can be an indication of the number of non-zero bandwidth amplitude coefficients at each layer, or it can be an indication of the total number of non-zero amplitude coefficients at all layers. It should be noted that the subsequent description of the number of non-zero coefficients is the same as the description here, and will not be repeated hereafter.

[0108] Optionally, the reference resource index information can be obtained via a bitmap.

[0109] In one possible implementation, the second information includes PMI.

[0110] In one possible implementation, the second information includes at least one of the following: spatial codebook information for each station in the CSI report; frequency domain codebook information for each station in the CSI report; non-zero coefficient information for each station in the CSI report; non-zero coefficient information; reference amplitude information for each layer for each station in the CSI report; strongest coefficient indication for each layer for each station in the CSI report; reference amplitude information for each layer for all stations in the CSI report; and strongest coefficient indication for each layer for all stations in the CSI report. Optionally, the frequency domain codebook information for each station may be the same or different. Optionally, all stations share the same reference amplitude information for each layer. Optionally, all stations share the same strongest coefficient indication for each layer.

[0111] Among them, non-zero coefficient information can be the position information of the element corresponding to the non-zero amplitude coefficient, the amplitude information of the element corresponding to the non-zero amplitude coefficient, or the phase information of the element corresponding to the non-zero amplitude coefficient. Frequency domain codebook information can be an index indicating the frequency domain codebook. Spatial domain codebook information can be an index indicating the spatial domain codebook. Strongest coefficient indicator can be the position information of the element corresponding to the strongest coefficient. It should be noted that the subsequent descriptions of non-zero coefficient information, frequency domain codebook information, and strongest coefficient indicator are the same as those here, and will not be repeated later.

[0112] In one possible implementation, the second information includes i sets of information, where the value of i is the number of sites included in the CSI report. Optionally, when the codebook type information included in the network information indicates a first codebook type, the terminal device can use this method to divide the second information of the CSI report.

[0113] Optionally, a CSI measurement result for one site corresponds to a set of information. Specifically, which set of information is placed in which site's CSI measurement result is determined by the terminal device based on its own measurement method.

[0114] For example, the CSI report includes 3 sites, and the second information includes 3 sets of information, wherein the first set of information corresponds to the CSI measurement result of the first site, the second set of information corresponds to the CSI measurement result of the third site, and the third set of information corresponds to the CSI measurement result of the second site.

[0115] Optionally, the CSI measurement results at this site may include at least one of the following: reference amplitude information for non-zero coefficients, spatial domain codebook information, frequency domain codebook information, non-zero coefficient information, reference signal resource indicator index or reference signal resource indicator index code point, and strongest coefficient indicator. It should be noted that the reference amplitude information for non-zero coefficients includes the reference amplitude of non-zero coefficients for each layer. The non-zero coefficient information includes the non-zero coefficient information for each layer. The strongest coefficient indicator includes the strongest coefficient indicator for each layer.

[0116] In one possible implementation, the second information includes i sets of information, where i = j + 1, and j is the number of sites included in the CSI report. Optionally, when the codebook type information included in the network information indicates a second codebook type, the terminal device can use this method to divide the second information of the CSI report.

[0117] Optionally, the first group of information in group i includes the airspace codebook information for each site.

[0118] Optionally, the information in group i, excluding the first group, is as follows: a group of information corresponds to part / all of the CSI measurement results of a site.

[0119] For example, the CSI report contains 3 sites, and the second information includes 4 sets of information, wherein the first set of information includes the spatial codebook information of each site, the second set of information corresponds to the CSI measurement results of the first site, the third set of information corresponds to the CSI measurement results of the third site, and the fourth set of information corresponds to the CSI measurement results of the second site.

[0120] Optionally, the site's partial / complete CSI measurement results may include at least one of the following: reference amplitude information for non-zero coefficients, frequency domain codebook information, non-zero coefficient information, reference signal resource indicator index or reference signal resource indicator index code point, and strongest coefficient indicator. It should be noted that the reference amplitude information for non-zero coefficients includes the reference amplitude of non-zero coefficients for each layer. The non-zero coefficient information includes the non-zero coefficient information for each layer. The strongest coefficient indicator includes the strongest coefficient indicator for each layer.

[0121] In one possible implementation, the second information includes i sets of information; the x-th set of information in the i-th set includes at least one of the following: frequency domain codebook information for each station, reference amplitude information of non-zero coefficients for each station, where x is a positive integer; the y-th set of information in the i-th set includes spatial domain codebook information for each station, where y is a positive integer; the z-th set of information in the i-th set includes non-zero coefficient information for each station, where z is a positive integer.

[0122] For example, x is 1, y is 2, and z is 3. The second information includes three sets of information. The first set of information includes at least one of the following: frequency domain codebook information for each station, reference amplitude information of non-zero coefficients for each station, and strongest coefficient indication. The second set of information includes spatial domain codebook information for each station. The third set of information includes non-zero coefficient information for each station.

[0123] For example, if x is 1, y is 2, and z is 3, the second information includes three sets of information; wherein, the first set of information includes the spatial codebook information of each station; the second set of information includes at least one of the following: the frequency codebook information of each station, the reference amplitude information of the non-zero coefficients of each station, and the strongest coefficient indication; the third set of information includes the non-zero coefficient information of each station.

[0124] Optionally, the priority order of the x-th group of information, the y-th group of information, and the z-th group of information is the same as the ascending order of the values ​​of x, y, and z.

[0125] For example, if x is 1, y is 2, and z is 3, the priority of the first group of information is higher than the priority of the second group of information, and the priority of the second group of information is higher than the priority of the third group of information.

[0126] Optionally, the frequency domain codebook information is the same for each station. Optionally, when the codebook type information included in the network information indicates a second codebook type, the terminal device can use this method to divide the second information in the CSI report. It should be noted that the reference amplitude information for non-zero coefficients includes the reference amplitude of non-zero coefficients for each layer. The non-zero coefficient information includes the non-zero coefficient information for each layer. The strongest coefficient indication includes the strongest coefficient indication for each layer.

[0127] In one possible implementation, the second information includes i sets of information, where i = j + 2, and j is the number of sites included in the CSI report. Optionally, when the codebook type information included in the network information indicates a second codebook type, the terminal device can use this method to divide the second information of the CSI report.

[0128] Optionally, the first group of information in group i includes the airspace codebook information for each site.

[0129] Optionally, the second group of information in group i includes at least one of the following: frequency domain codebook information for each station, reference amplitude information for each station, and strongest coefficient indication for each station. Further optionally, the frequency domain codebook information is the same for each station.

[0130] Optionally, the information for groups other than Group 1 and Group 2 in this i group is: one group of information corresponds to part / all of the CSI measurement results of a site.

[0131] For example, the CSI report includes 3 stations, and the second information includes 5 sets of information, wherein the first set of information includes the spatial codebook information of each station, the second set of information includes the frequency codebook information and the reference amplitude information of each station, the third set of information corresponds to all or part of the CSI measurement results of the first station, the fourth set of information corresponds to all or part of the CSI measurement results of the third station, and the fifth set of information corresponds to all or part of the CSI measurement results of the second station.

[0132] Further optionally, the partial / full CSI measurement results of the site may include at least one of the following: reference amplitude information of the non-zero coefficients of the site, information of the non-zero coefficients of the site, and indication of the strongest coefficient of the site.

[0133] In one possible implementation, the i groups of information are arranged in descending order of priority. The terminal device can determine the priority based on the position of each group of information in the CSI report; the earlier the position, the higher the priority. That is, the smaller the value of i, the higher the priority of the i-th group of information. For example, the priority of the 3rd group of information is higher than the priority of the 4th group of information.

[0134] In one possible implementation, the CSI report also includes codebook type information. The terminal device can include codebook type information contained in the network information in the CSI report to indicate the codebook type in the CSI report.

[0135] 203. The terminal device sends the CSI report to the network device.

[0136] 204. Network devices determine the channel status based on this CSI report.

[0137] The following is a specific example to illustrate this:

[0138] For example, the terminal device receives network information, which includes codebook type indication information, wherein the codebook type indicated by the codebook type indication information is a first codebook type. The CSI report obtained by the terminal device is divided as follows:

[0139] The CSI report includes three sites: Site 1, Site 2, and Site 3. The CSI report is divided into first information and second information. The first information includes the number of sites, the number of non-zero coefficients for each site, and reference resource index indication information. The second information includes the spatial codebook information, the frequency domain codebook information, and the non-zero coefficient information for each site in the CSI report. The frequency domain codebook information for each site can be different. The codebook type indication information indicates the first codebook type. The terminal device can divide the second information as follows: one site's CSI measurement result corresponds to one group of information; that is, the second information includes three groups of information: the first group corresponds to the CSI measurement result of the first site, the second group corresponds to the CSI measurement result of the third site, and the third group corresponds to the CSI measurement result of the second site. Therefore, the terminal device obtains a CSI report, which includes CSI measurement results under the assumption of coherent joint transmission at three sites. The terminal device then sends the CSI report to the network device, which can determine the channel state based on the CSI report.

[0140] exist Figure 2 In the described method, the terminal device receives network information and then obtains a CSI report based on that network information. The CSI report includes CSI measurement results under the assumption of coherent joint transmission at one or more sites. The terminal device sends the CSI report to the network device, and the network device determines the channel state based on the CSI report. Therefore, based on... Figure 2 The described method enables terminal devices to obtain CSI reports under the assumption of coherent joint transmission at one or more sites.

[0141] Please see Figure 3 , Figure 3 A schematic diagram of a communication device according to an embodiment of this application is shown. This device may be a terminal device, a component within a terminal device, or a device compatible with a terminal device. Figure 3 The communication device 30 shown may include a processing unit 301 and a communication unit 302. The processing unit 301 is used for data processing. The communication unit 302 integrates a receiving unit and a transmitting unit. The communication unit 302 can also be called a transceiver unit. Alternatively, the communication unit 302 can be split into a receiving unit and a transmitting unit. The processing unit 301 and communication unit 302 described below are similar and will not be repeated here. Wherein:

[0142] The communication unit 302 is used to receive network information.

[0143] Processing unit 301 is used to obtain a CSI report based on the network information. The CSI report includes CSI measurement results under the assumption of coherent joint transmission of one or more sites.

[0144] Optionally, the network information includes codebook type indication information, which is used to indicate the codebook type in the CSI report.

[0145] Optionally, the codebook type includes a first codebook type and a second codebook type, wherein the first codebook type is used to indicate the acquisition of the frequency domain codebook of each of the multiple sites, and the second codebook type is used to indicate the joint acquisition of the frequency domain codebook of the sites.

[0146] Optionally, the network information includes a first parameter used to determine the codebook type.

[0147] Optionally, the first parameter includes a threshold value for the number of sites.

[0148] Optionally, the codebook type includes a first codebook type and a second codebook type. The first codebook type is used to indicate the acquisition of the frequency domain codebook of each of the multiple sites, and the second codebook type is used to indicate the joint acquisition of the frequency domain codebook of the site. The processing unit 301 is further configured to: if the number of sites included in the CSI report is greater than the number threshold, then determine that the codebook type in the CSI report is the first codebook type.

[0149] Optionally, the processing unit 301 is further configured to: if the number of sites included in the CSI report is less than or equal to the number threshold, determine that the codebook type in the CSI report is a second codebook type.

[0150] Optionally, the CSI report includes first information and second information.

[0151] Optionally, the first information includes at least one of the following: information on the number of sites, information on the number of non-zero broadband amplitude coefficients, and reference resource index indication information.

[0152] Optionally, the second information may include all or part of the CSI measurement results of the site.

[0153] Optionally, the reference resource index indication information can be obtained via a bitmap.

[0154] Optionally, the second information includes at least one of the following: spatial codebook information for each station in the CSI report, frequency codebook information for each station in the CSI report, and non-zero coefficient information for each station in the CSI report; wherein the frequency codebook information for each station may be the same or different.

[0155] Optionally, the second information includes i sets of information, where the value of i is the number of sites included in the CSI report.

[0156] Optionally, a CSI measurement result for one site corresponds to a group of information.

[0157] Optionally, the CSI measurement results of the site include at least one of the following: reference amplitude information of non-zero coefficients, spatial codebook information, frequency codebook information, non-zero coefficient information, reference signal resource indicator index, or reference signal resource indicator index code point.

[0158] Optionally, the second information includes i sets of information, where i = j + 1, and j is the number of sites included in the CSI report.

[0159] Optionally, the first group of information in group i includes the airspace codebook information for each site.

[0160] Optionally, the information in group i, excluding the first group, is as follows: a group of information corresponds to part / all of the CSI measurement results of a site.

[0161] Optionally, the partial / full CSI measurement results of the site may include at least one of the following: reference amplitude information of the non-zero coefficients of the site, frequency domain codebook information of the site, and non-zero coefficients of the site.

[0162] Optionally, the second information includes i sets of information; the x-th set of information in the i-th set includes at least one of the following: frequency domain codebook information for each station, and non-zero coefficient reference position for each station, where x is a positive integer; the y-th set of information in the i-th set includes spatial domain codebook information for each station, where y is a positive integer; the z-th set of information in the i-th set includes non-zero coefficient information for each station, where z is a positive integer.

[0163] Optionally, the second information includes i sets of information, where i = j + 2, and j is the number of sites included in the CSI report.

[0164] Optionally, the first group of information in group i includes the airspace codebook information for each site.

[0165] Optionally, the second group of information in group i includes at least one of the following: frequency domain codebook information for each station, and reference amplitude information for each station.

[0166] Optionally, the frequency domain codebook information is the same for each station.

[0167] Optionally, the information for groups other than Group 1 and Group 2 in this i group is: one group of information corresponds to part / all of the CSI measurement results of a site.

[0168] Optionally, the partial / full CSI measurement results of the site may include at least one of the following: reference amplitude information of the non-zero coefficients of the site, and information of the non-zero coefficients of the site.

[0169] Optionally, the i-th group of information can be sorted by priority.

[0170] Optionally, the CSI report may also include codebook type information, which indicates the codebook type in the CSI report.

[0171] The aforementioned communication device may be, for example, a chip or a chip module. The modules included in the various devices and products described in the above embodiments may be software modules, hardware modules, or a combination of both. For example, for various devices and products applied to or integrated into a chip, each module can be implemented using hardware methods such as circuits, or at least some modules can be implemented using software programs that run on a processor integrated within the chip, while the remaining (if any) modules can be implemented using hardware methods such as circuits; for various devices and products applied to or integrated into a chip module, each module can be implemented using hardware methods such as circuits, and different modules can be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some modules can be implemented using software programs that run on a processor integrated within the chip module, while the remaining (if any) modules can be implemented using hardware methods such as circuits; for various devices and products applied to or integrated into a terminal, each module can be implemented using hardware methods such as circuits, and different modules can be located in the same component (e.g., chip, circuit module, etc.) or different components within the terminal, or at least some modules can be implemented using software programs that run on a processor integrated within the terminal, while the remaining (if any) modules can be implemented using hardware methods such as circuits.

[0172] Please see Figure 3 , Figure 3 A schematic diagram of a communication device according to an embodiment of this application is shown. This device may be a terminal device, a component within a terminal device, or a device compatible with a terminal device. Figure 3 The communication device 30 shown may include a processing unit 301 and a communication unit 302. The processing unit 301 is used for data processing. The communication unit 302 integrates a receiving unit and a transmitting unit. The communication unit 302 can also be called a transceiver unit. Alternatively, the communication unit 302 can be split into a receiving unit and a transmitting unit. The processing unit 301 and communication unit 302 described below are similar and will not be repeated here. Wherein:

[0173] Communication unit 302 is used to acquire a CSI report, which includes CSI measurement results under the assumption of coherent joint transmission at one or more sites.

[0174] Processing unit 301 is used to determine the channel state based on the CSI report.

[0175] Optionally, the CSI report includes first information and second information.

[0176] Optionally, the first information includes at least one of the following: information on the number of sites, information on the number of non-zero broadband amplitude coefficients, and reference resource index indication information.

[0177] Optionally, the second information may include all or part of the CSI measurement results of the site.

[0178] Optionally, the reference resource index indication information can be obtained via a bitmap.

[0179] Optionally, the second information includes at least one of the following: spatial codebook information for each station in the CSI report, frequency codebook information for each station in the CSI report, and non-zero coefficient information for each station in the CSI report; wherein the frequency codebook information for each station may be the same or different.

[0180] Optionally, the second information includes i sets of information, where the value of i is the number of sites included in the CSI report.

[0181] Optionally, a CSI measurement result for one site corresponds to a group of information.

[0182] Optionally, the CSI measurement results of the site include at least one of the following: reference amplitude information of non-zero coefficients, spatial codebook information, frequency codebook information, non-zero coefficient information, reference signal resource indicator index, or reference signal resource indicator index code point.

[0183] Optionally, the second information includes i sets of information, where i = j + 1, and j is the number of sites included in the CSI report.

[0184] Optionally, the first group of information in group i includes the airspace codebook information for each site.

[0185] Optionally, the information in group i, excluding the first group, is as follows: a group of information corresponds to part / all of the CSI measurement results of a site.

[0186] Optionally, the partial / full CSI measurement results of the site may include at least one of the following: reference amplitude information of the non-zero coefficients of the site, frequency domain codebook information of the site, and non-zero coefficients of the site.

[0187] Optionally, the second information includes i sets of information; the x-th set of information in the i-th set includes at least one of the following: frequency domain codebook information for each station, and non-zero coefficient reference position for each station, where x is a positive integer; the y-th set of information in the i-th set includes spatial domain codebook information for each station, where y is a positive integer; the z-th set of information in the i-th set includes non-zero coefficient information for each station, where z is a positive integer.

[0188] Optionally, the second information includes i sets of information, where i = j + 2, and j is the number of sites included in the CSI report.

[0189] Optionally, the first group of information in group i includes the airspace codebook information for each site.

[0190] Optionally, the second group of information in group i includes at least one of the following: frequency domain codebook information for each station, and reference amplitude information for each station.

[0191] Optionally, the frequency domain codebook information is the same for each station.

[0192] Optionally, the information for groups other than Group 1 and Group 2 in this i group is: one group of information corresponds to part / all of the CSI measurement results of a site.

[0193] Optionally, the partial / full CSI measurement results of the site may include at least one of the following: reference amplitude information of the non-zero coefficients of the site, and information of the non-zero coefficients of the site.

[0194] Optionally, the i-th group of information can be sorted by priority.

[0195] Optionally, the CSI report may also include codebook type information, which indicates the codebook type in the CSI report.

[0196] The aforementioned communication device may be, for example, a chip or a chip module. The modules included in the various devices and products described in the above embodiments may be software modules, hardware modules, or a combination of both. For example, for various devices and products applied to or integrated into a chip, each module can be implemented using hardware methods such as circuits, or at least some modules can be implemented using software programs that run on a processor integrated within the chip, while the remaining (if any) modules can be implemented using hardware methods such as circuits; for various devices and products applied to or integrated into a chip module, each module can be implemented using hardware methods such as circuits, and different modules can be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some modules can be implemented using software programs that run on a processor integrated within the chip module, while the remaining (if any) modules can be implemented using hardware methods such as circuits; for various devices and products applied to or integrated into a terminal, each module can be implemented using hardware methods such as circuits, and different modules can be located in the same component (e.g., chip, circuit module, etc.) or different components within the terminal, or at least some modules can be implemented using software programs that run on a processor integrated within the terminal, while the remaining (if any) modules can be implemented using hardware methods such as circuits.

[0197] like Figure 4 The diagram shows another communication device 40 provided in an embodiment of this application, used to implement the above. Figure 2 The function of a terminal device. This device can be a terminal device or a device for a terminal device. The device for a terminal device can be a chip system or a chip within the terminal device. The chip system can consist of chips or may include chips and other discrete components.

[0198] The communication device 40 includes at least one processor 420 for implementing the data processing function of the terminal device in the method provided in this application embodiment. The device 40 may also include a communication interface 410 for implementing the transmit and receive operations of the terminal device in the method provided in this application embodiment. In this application embodiment, the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface for communicating with other devices via a transmission medium. For example, the communication interface 410 enables the device in the device 40 to communicate with other devices. The processor 420 uses the communication interface 410 to transmit and receive data and is used to implement the above method embodiment. Figure 2 The method described.

[0199] Device 40 may further include at least one memory 430 for storing program instructions and / or data. Memory 430 is coupled to processor 420. The coupling in this embodiment is an indirect coupling or communication connection between devices, units, or modules, and may be electrical, mechanical, or other forms, for information exchange between devices, units, or modules. Processor 420 may operate in conjunction with memory 430. Processor 420 may execute program instructions stored in memory 430. At least one of the at least one memory may be included in the processor.

[0200] When device 40 is powered on, processor 420 can read the software program in memory 430, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be transmitted wirelessly, processor 420 performs baseband processing on the data to be transmitted and outputs the baseband signal to the radio frequency (RF) circuit (not shown in the figure). The RF circuit processes the baseband signal and transmits the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to device 40, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to processor 420. Processor 420 converts the baseband signal into data and processes the data.

[0201] In another implementation, the radio frequency circuitry and antenna can be set up independently of the processor 420 that performs baseband processing. For example, in a distributed scenario, the radio frequency circuitry and antenna can be arranged in a remote manner, independent of the communication device.

[0202] This application embodiment does not limit the specific connection medium between the communication interface 410, processor 420, and memory 430. This application embodiment... Figure 4 The memory 430, processor 420, and communication interface 410 are connected via a bus 440. Figure 4 The connections between other components are shown in bold and are for illustrative purposes only, not as limiting information. The bus can be divided into address bus, data bus, control bus, etc. For ease of illustration, Figure 4 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0203] When device 40 is specifically used in a terminal device, such as when device 40 is specifically a chip or chip system, the communication interface 410 may output or receive baseband signals. When device 40 is specifically a terminal device, the communication interface 410 may output or receive radio frequency signals. In the embodiments of this application, the processor may be a general-purpose processor, digital signal processor, application-specific integrated circuit, field-programmable gate array or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, which can implement or execute the various methods, operations, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The operation of the method disclosed in the embodiments of this application can be directly reflected as being executed by a hardware processor, or being executed by a combination of hardware and software modules in the processor.

[0204] It should be noted that the communication device can execute the relevant steps of the terminal device or access network device in the aforementioned method embodiments. For details, please refer to the implementation methods provided in the above steps, which will not be repeated here.

[0205] For various devices and products applied to or integrated into communication devices, each of its modules can be implemented using hardware such as circuits. Different modules can be located in the same component (e.g., chip, circuit module, etc.) or different components within the terminal. Alternatively, at least some modules can be implemented using software programs that run on a processor integrated within the terminal, while the remaining (if any) modules can be implemented using hardware such as circuits.

[0206] This application also provides a chip, including a processor and a communication interface, the processor being configured to perform the following operations: receiving network information; obtaining a CSI report based on the network information, the CSI report including CSI measurement results under the assumption of one or more sites coherent joint transmission.

[0207] Optionally, the network information includes codebook type indication information, which is used to indicate the codebook type in the CSI report.

[0208] Optionally, the codebook type includes a first codebook type and a second codebook type, wherein the first codebook type is used to indicate the acquisition of the frequency domain codebook of each of the multiple sites, and the second codebook type is used to indicate the joint acquisition of the frequency domain codebook of the sites.

[0209] Optionally, the network information includes a first parameter used to determine the codebook type.

[0210] Optionally, the first parameter includes a threshold value for the number of sites.

[0211] Optionally, the codebook type includes a first codebook type and a second codebook type. The first codebook type is used to indicate the acquisition of the frequency domain codebook of each of the multiple sites, and the second codebook type is used to indicate the joint acquisition of the frequency domain codebook of the site. The chip is also used to: if the number of sites included in the CSI report is greater than the number threshold, then determine that the codebook type in the CSI report is the first codebook type.

[0212] Optionally, the chip is also used to: determine the codebook type in the CSI report as a second codebook type if the number of sites included in the CSI report is less than or equal to the number threshold.

[0213] Optionally, the CSI report includes first information and second information.

[0214] Optionally, the first information includes at least one of the following: information on the number of sites, information on the number of non-zero broadband amplitude coefficients, and reference resource index indication information.

[0215] Optionally, the second information may include all or part of the CSI measurement results of the site.

[0216] Optionally, the reference resource index indication information can be obtained via a bitmap.

[0217] Optionally, the second information includes at least one of the following: spatial codebook information for each station in the CSI report, frequency codebook information for each station in the CSI report, and non-zero coefficient information for each station in the CSI report; wherein the frequency codebook information for each station may be the same or different.

[0218] Optionally, the second information includes i sets of information, where the value of i is the number of sites included in the CSI report.

[0219] Optionally, a CSI measurement result for one site corresponds to a group of information.

[0220] Optionally, the CSI measurement results of the site include at least one of the following: reference amplitude information of non-zero coefficients, spatial codebook information, frequency codebook information, non-zero coefficient information, reference signal resource indicator index, or reference signal resource indicator index code point.

[0221] Optionally, the second information includes i sets of information, where i = j + 1, and j is the number of sites included in the CSI report.

[0222] Optionally, the first group of information in group i includes the airspace codebook information for each site.

[0223] Optionally, the information in group i, excluding the first group, is as follows: a group of information corresponds to part / all of the CSI measurement results of a site.

[0224] Optionally, the partial / full CSI measurement results of the site may include at least one of the following: reference amplitude information of the non-zero coefficients of the site, frequency domain codebook information of the site, and non-zero coefficients of the site.

[0225] Optionally, the second information includes i sets of information; the x-th set of information in the i-th set includes at least one of the following: frequency domain codebook information for each station, and non-zero coefficient reference position for each station, where x is a positive integer; the y-th set of information in the i-th set includes spatial domain codebook information for each station, where y is a positive integer; the z-th set of information in the i-th set includes non-zero coefficient information for each station, where z is a positive integer.

[0226] Optionally, the second information includes i sets of information, where i = j + 2, and j is the number of sites included in the CSI report.

[0227] Optionally, the first group of information in group i includes the airspace codebook information for each site.

[0228] Optionally, the second group of information in group i includes at least one of the following: frequency domain codebook information for each station, and reference amplitude information for each station.

[0229] Optionally, the frequency domain codebook information is the same for each station.

[0230] Optionally, the information for groups other than Group 1 and Group 2 in this i group is: one group of information corresponds to part / all of the CSI measurement results of a site.

[0231] Optionally, the partial / full CSI measurement results of the site may include at least one of the following: reference amplitude information of the non-zero coefficients of the site, and information of the non-zero coefficients of the site.

[0232] Optionally, the i-th group of information can be sorted by priority.

[0233] Optionally, the CSI report may also include codebook type information, which indicates the codebook type in the CSI report.

[0234] In one possible implementation, the chip includes at least one processor, at least one first memory, and at least one second memory; wherein the at least one first memory and the at least one processor are interconnected by a circuit, and the first memory stores instructions; the at least one second memory and the at least one processor are interconnected by a circuit, and the second memory stores data that needs to be stored in the aforementioned method embodiment.

[0235] For each device or product applied to or integrated into a chip, each of its modules can be implemented using hardware methods such as circuits, or at least some modules can be implemented using software programs that run on a processor integrated inside the chip, while the remaining (if any) modules can be implemented using hardware methods such as circuits.

[0236] This application also provides a chip, including a processor and a communication interface, the processor being configured to perform the following operations: acquiring a CSI report, the CSI report including CSI measurement results under the assumption of one or more site coherent joint transmission; and determining the channel state based on the CSI report.

[0237] Optionally, the CSI report includes first information and second information.

[0238] Optionally, the first information includes at least one of the following: information on the number of sites, information on the number of non-zero broadband amplitude coefficients, and reference resource index indication information.

[0239] Optionally, the second information may include all or part of the CSI measurement results of the site.

[0240] Optionally, the reference resource index indication information can be obtained via a bitmap.

[0241] Optionally, the second information includes at least one of the following: spatial codebook information for each station in the CSI report, frequency codebook information for each station in the CSI report, and non-zero coefficient information for each station in the CSI report; wherein the frequency codebook information for each station may be the same or different.

[0242] Optionally, the second information includes i sets of information, where the value of i is the number of sites included in the CSI report.

[0243] Optionally, a CSI measurement result for one site corresponds to a group of information.

[0244] Optionally, the CSI measurement results of the site include at least one of the following: reference amplitude information of non-zero coefficients, spatial codebook information, frequency codebook information, non-zero coefficient information, reference signal resource indicator index, or reference signal resource indicator index code point.

[0245] Optionally, the second information includes i sets of information, where i = j + 1, and j is the number of sites included in the CSI report.

[0246] Optionally, the first group of information in group i includes the airspace codebook information for each site.

[0247] Optionally, the information in group i, excluding the first group, is as follows: a group of information corresponds to part / all of the CSI measurement results of a site.

[0248] Optionally, the partial / full CSI measurement results of the site may include at least one of the following: reference amplitude information of the non-zero coefficients of the site, frequency domain codebook information of the site, and non-zero coefficients of the site.

[0249] Optionally, the second information includes i sets of information; the x-th set of information in the i-th set includes at least one of the following: frequency domain codebook information for each station, and non-zero coefficient reference position for each station, where x is a positive integer; the y-th set of information in the i-th set includes spatial domain codebook information for each station, where y is a positive integer; the z-th set of information in the i-th set includes non-zero coefficient information for each station, where z is a positive integer.

[0250] Optionally, the second information includes i sets of information, where i = j + 2, and j is the number of sites included in the CSI report.

[0251] Optionally, the first group of information in group i includes the airspace codebook information for each site.

[0252] Optionally, the second group of information in group i includes at least one of the following: frequency domain codebook information for each station, and reference amplitude information for each station.

[0253] Optionally, the frequency domain codebook information is the same for each station.

[0254] Optionally, the information for groups other than Group 1 and Group 2 in this i group is: one group of information corresponds to part / all of the CSI measurement results of a site.

[0255] Optionally, the partial / full CSI measurement results of the site may include at least one of the following: reference amplitude information of the non-zero coefficients of the site, and information of the non-zero coefficients of the site.

[0256] Optionally, the i-th group of information can be sorted by priority.

[0257] Optionally, the CSI report may also include codebook type information, which indicates the codebook type in the CSI report.

[0258] In one possible implementation, the chip includes at least one processor, at least one first memory, and at least one second memory; wherein the at least one first memory and the at least one processor are interconnected by a circuit, and the first memory stores instructions; the at least one second memory and the at least one processor are interconnected by a circuit, and the second memory stores data that needs to be stored in the aforementioned method embodiment.

[0259] For each device or product applied to or integrated into a chip, each of its modules can be implemented using hardware methods such as circuits, or at least some modules can be implemented using software programs that run on a processor integrated inside the chip, while the remaining (if any) modules can be implemented using hardware methods such as circuits.

[0260] like Figure 5 As shown, Figure 5 This is a schematic diagram of the structure of a module device provided in an embodiment of this application. The module device 50 can perform the relevant steps of the terminal device in the aforementioned method embodiments. The module device 50 includes: a communication module 501, a power module 502, a storage module 503, and a chip module 504.

[0261] The power supply module 502 is used to provide power to the module device; the storage module 503 is used to store data and instructions; the communication module 501 is used for internal communication within the module device or for communication between the module device and external devices; the chip module 504 is used to: receive network information; and obtain a CSI report based on the network information, the CSI report including CSI measurement results under the assumption of coherent joint transmission of one or more sites.

[0262] Optionally, the network information includes codebook type indication information, which is used to indicate the codebook type in the CSI report.

[0263] Optionally, the codebook type includes a first codebook type and a second codebook type, wherein the first codebook type is used to indicate the acquisition of the frequency domain codebook of each of the multiple sites, and the second codebook type is used to indicate the joint acquisition of the frequency domain codebook of the sites.

[0264] Optionally, the network information includes a first parameter used to determine the codebook type.

[0265] Optionally, the first parameter includes a threshold value for the number of sites.

[0266] Optionally, the codebook type includes a first codebook type and a second codebook type. The first codebook type is used to indicate the acquisition of the frequency domain codebook of each of the multiple sites, and the second codebook type is used to indicate the joint acquisition of the frequency domain codebook of the site. The chip module 504 is further used to: if the number of sites included in the CSI report is greater than the number threshold, then determine that the codebook type in the CSI report is the first codebook type.

[0267] Optionally, chip module 504 is also used to: determine the codebook type in the CSI report as a second codebook type if the number of sites included in the CSI report is less than or equal to the number threshold.

[0268] Optionally, the CSI report includes first information and second information.

[0269] Optionally, the first information includes at least one of the following: information on the number of sites, information on the number of non-zero broadband amplitude coefficients, and reference resource index indication information.

[0270] Optionally, the second information may include all or part of the CSI measurement results of the site.

[0271] Optionally, the reference resource index indication information can be obtained via a bitmap.

[0272] Optionally, the second information includes at least one of the following: spatial codebook information for each station in the CSI report, frequency codebook information for each station in the CSI report, and non-zero coefficient information for each station in the CSI report; wherein the frequency codebook information for each station may be the same or different.

[0273] Optionally, the second information includes i sets of information, where the value of i is the number of sites included in the CSI report.

[0274] Optionally, a CSI measurement result for one site corresponds to a group of information.

[0275] Optionally, the CSI measurement results of the site include at least one of the following: reference amplitude information of non-zero coefficients, spatial codebook information, frequency codebook information, non-zero coefficient information, reference signal resource indicator index, or reference signal resource indicator index code point.

[0276] Optionally, the second information includes i sets of information, where i = j + 1, and j is the number of sites included in the CSI report.

[0277] Optionally, the first group of information in group i includes the airspace codebook information for each site.

[0278] Optionally, the information in group i, excluding the first group, is as follows: a group of information corresponds to part / all of the CSI measurement results of a site.

[0279] Optionally, the partial / full CSI measurement results of the site may include at least one of the following: reference amplitude information of the non-zero coefficients of the site, frequency domain codebook information of the site, and non-zero coefficients of the site.

[0280] Optionally, the second information includes i sets of information; the x-th set of information in the i-th set includes at least one of the following: frequency domain codebook information for each station, and non-zero coefficient reference position for each station, where x is a positive integer; the y-th set of information in the i-th set includes spatial domain codebook information for each station, where y is a positive integer; the z-th set of information in the i-th set includes non-zero coefficient information for each station, where z is a positive integer.

[0281] Optionally, the second information includes i sets of information, where i = j + 2, and j is the number of sites included in the CSI report.

[0282] Optionally, the first group of information in group i includes the airspace codebook information for each site.

[0283] Optionally, the second group of information in group i includes at least one of the following: frequency domain codebook information for each station, and reference amplitude information for each station.

[0284] Optionally, the frequency domain codebook information is the same for each station.

[0285] Optionally, the information for groups other than Group 1 and Group 2 in this i group is: one group of information corresponds to part / all of the CSI measurement results of a site.

[0286] Optionally, the partial / full CSI measurement results of the site may include at least one of the following: reference amplitude information of the non-zero coefficients of the site, and information of the non-zero coefficients of the site.

[0287] Optionally, the i-th group of information can be sorted by priority.

[0288] Optionally, the CSI report may also include codebook type information, which indicates the codebook type in the CSI report.

[0289] For various devices and products applied to or integrated into chip modules, each module can be implemented using hardware methods such as circuits. Different modules can be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module. Alternatively, at least some modules can be implemented using software programs that run on a processor integrated within the chip module, while the remaining (if any) modules can be implemented using hardware methods such as circuits. This application also provides a computer-readable storage medium storing instructions that, when executed on a processor, implement the method flow of the above-described method embodiments.

[0290] like Figure 5 As shown, Figure 5This is a schematic diagram of the structure of a module device provided in an embodiment of this application. The module device 50 can perform the relevant steps of the terminal device in the aforementioned method embodiments. The module device 50 includes: a communication module 501, a power module 502, a storage module 503, and a chip module 504.

[0291] The power supply module 502 is used to provide power to the module device; the storage module 503 is used to store data and instructions; the communication module 501 is used for internal communication within the module device or for communication between the module device and external devices; the chip module 504 is used to: acquire a CSI report, which includes CSI measurement results under the assumption of one or more coherent joint transmissions at one or more sites; and determine the channel state based on the CSI report.

[0292] Optionally, the CSI report includes first information and second information.

[0293] Optionally, the first information includes at least one of the following: information on the number of sites, information on the number of non-zero broadband amplitude coefficients, and reference resource index indication information.

[0294] Optionally, the second information may include all or part of the CSI measurement results of the site.

[0295] Optionally, the reference resource index indication information can be obtained via a bitmap.

[0296] Optionally, the second information includes at least one of the following: spatial codebook information for each station in the CSI report, frequency codebook information for each station in the CSI report, and non-zero coefficient information for each station in the CSI report; wherein the frequency codebook information for each station may be the same or different.

[0297] Optionally, the second information includes i sets of information, where the value of i is the number of sites included in the CSI report.

[0298] Optionally, a CSI measurement result for one site corresponds to a group of information.

[0299] Optionally, the CSI measurement results of the site include at least one of the following: reference amplitude information of non-zero coefficients, spatial codebook information, frequency codebook information, non-zero coefficient information, reference signal resource indicator index, or reference signal resource indicator index code point.

[0300] Optionally, the second information includes i sets of information, where i = j + 1, and j is the number of sites included in the CSI report.

[0301] Optionally, the first group of information in group i includes the airspace codebook information for each site.

[0302] Optionally, the information in group i, excluding the first group, is as follows: a group of information corresponds to part / all of the CSI measurement results of a site.

[0303] Optionally, the partial / full CSI measurement results of the site may include at least one of the following: reference amplitude information of the non-zero coefficients of the site, frequency domain codebook information of the site, and non-zero coefficients of the site.

[0304] Optionally, the second information includes i sets of information; the x-th set of information in the i-th set includes at least one of the following: frequency domain codebook information for each station, and non-zero coefficient reference position for each station, where x is a positive integer; the y-th set of information in the i-th set includes spatial domain codebook information for each station, where y is a positive integer; the z-th set of information in the i-th set includes non-zero coefficient information for each station, where z is a positive integer.

[0305] Optionally, the second information includes i sets of information, where i = j + 2, and j is the number of sites included in the CSI report.

[0306] Optionally, the first group of information in group i includes the airspace codebook information for each site.

[0307] Optionally, the second group of information in group i includes at least one of the following: frequency domain codebook information for each station, and reference amplitude information for each station.

[0308] Optionally, the frequency domain codebook information is the same for each station.

[0309] Optionally, the information for groups other than Group 1 and Group 2 in this i group is: one group of information corresponds to part / all of the CSI measurement results of a site.

[0310] Optionally, the partial / full CSI measurement results of the site may include at least one of the following: reference amplitude information of the non-zero coefficients of the site, and information of the non-zero coefficients of the site.

[0311] Optionally, the i-th group of information can be sorted by priority.

[0312] Optionally, the CSI report may also include codebook type information, which indicates the codebook type in the CSI report.

[0313] For various devices and products applied to or integrated into chip modules, each module can be implemented using hardware methods such as circuits. Different modules can be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module. Alternatively, at least some modules can be implemented using software programs that run on a processor integrated within the chip module, while the remaining (if any) modules can be implemented using hardware methods such as circuits. This application also provides a computer-readable storage medium storing instructions that, when executed on a processor, implement the method flow of the above-described method embodiments.

[0314] This application also provides a computer program product, which, when run on a processor, enables the implementation of the method flow described in the above method embodiments.

[0315] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some operations can be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0316] The descriptions of the various embodiments provided in this application can be referenced mutually. Each embodiment has its own emphasis, and parts not described in detail in a certain embodiment can be referred to the relevant descriptions of other embodiments. For the sake of convenience and brevity, for example, the functions and operations of the various devices and equipment provided in the embodiments of this application can be referred to the relevant descriptions of the method embodiments of this application. The method embodiments and the device embodiments can also be referenced, combined or cited from each other.

[0317] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A method for obtaining Channel State Information (CSI) reports, characterized in that, The method includes: Receive network information; A CSI report is obtained based on the network information, and the CSI report includes CSI measurement results under the assumption of coherent joint transmission at one or more sites. The network information includes codebook type indication information, which is used to indicate the codebook type in the CSI report; the codebook type includes a first codebook type and a second codebook type, the first codebook type is used to indicate the acquisition of the frequency domain codebook of each of the multiple sites, and the second codebook type is used to indicate the joint acquisition of the frequency domain codebook of the sites.

2. The method according to claim 1, characterized in that, The network information includes a first parameter, which is used to determine the codebook type.

3. The method according to claim 2, characterized in that, The first parameter includes a threshold value for the number of stations.

4. The method according to claim 3, characterized in that, The codebook type includes a first codebook type and a second codebook type. The first codebook type is used to indicate the acquisition of the frequency domain codebook of each of the multiple stations, and the second codebook type is used to indicate the joint acquisition of the frequency domain codebook of the stations. The method further includes: If the number of sites included in the CSI report is greater than the number threshold, then the codebook type in the CSI report is determined to be the first codebook type.

5. The method according to claim 4, characterized in that, The method further includes: If the number of sites included in the CSI report is less than or equal to the number threshold, then the codebook type in the CSI report is determined to be the second codebook type.

6. The method according to claim 1, characterized in that, The CSI report includes first information and second information.

7. The method according to claim 6, characterized in that, The first information includes at least one of the following: information on the number of sites, information on the number of non-zero broadband amplitude coefficients, and information on reference resource index indication.

8. The method according to claim 6, characterized in that, The second information includes all or part of the CSI measurement results of the site.

9. The method according to claim 7, characterized in that, The reference resource index indication information is obtained through a bitmap.

10. The method according to claim 6, characterized in that, The second information includes at least one of the following: spatial codebook information of each station in the CSI report, frequency codebook information of each station in the CSI report, and non-zero coefficient information of each station in the CSI report; wherein the frequency codebook information of each station may be the same or different.

11. The method according to claim 6, characterized in that, The second information includes i sets of information, where the value of i is the number of sites included in the CSI report.

12. The method according to claim 11, characterized in that, A CSI measurement result for one site corresponds to a group of information.

13. The method according to claim 12, characterized in that, The CSI measurement results of the site include at least one of the following: reference amplitude information of non-zero coefficients, spatial codebook information, frequency codebook information, non-zero coefficient information, reference signal resource indicator index, or reference signal resource indicator index code point.

14. The method according to claim 6, characterized in that, The second information includes i sets of information, where i = j + 1, and j is the number of sites included in the CSI report.

15. The method according to claim 14, characterized in that, The first group of information in group i includes the spatial codebook information of each station.

16. The method according to claim 14, characterized in that, The information in group i, excluding the first group, is as follows: a group of information corresponds to part / all of the CSI measurement results of a site.

17. The method according to claim 16, characterized in that, The partial / full CSI measurement results of the site include at least one of the following: reference amplitude information of the non-zero coefficients of the site, frequency domain codebook information of the site, and non-zero coefficient information of the site.

18. The method according to claim 6, characterized in that, The second information includes i sets of information; The x-th group of information in the i-th group includes at least one of the following: the frequency domain codebook information of each station, the reference amplitude information of the non-zero coefficients of each station, and x is a positive integer; The y-th information in the i-th group of information includes the spatial codebook information of each station, where y is a positive integer; The z-th group of information in the i-th group includes the non-zero coefficient information of each station, where z is a positive integer.

19. The method according to claim 6, characterized in that, The second information includes i sets of information, where i = j + 2, and j is the number of sites included in the CSI report.

20. The method according to claim 19, characterized in that, The first group of information in group i includes the spatial codebook information of each station.

21. The method according to claim 19, characterized in that, The second group of information in group i includes at least one of the following: frequency domain codebook information of each station, and reference amplitude information of each station.

22. The method according to claim 6, characterized in that, The frequency domain codebook information of each station is the same.

23. The method according to claim 19, characterized in that, The information in group i, excluding group 1 and group 2, is as follows: one group of information corresponds to part or all of the CSI measurement results of a site.

24. The method according to claim 23, characterized in that, The partial / full CSI measurement results of the site include at least one of the following: reference amplitude information of the non-zero coefficients of the site, and information of the non-zero coefficients of the site.

25. The method according to claim 11, characterized in that, The i-th group of information is arranged in descending order of priority.

26. The method according to any one of claims 1-25, wherein the CSI report further includes codebook type information, the codebook type information being used to indicate the codebook type in the CSI report.

27. A method for obtaining Channel State Information (CSI) reports, characterized in that, The method includes: Obtain a CSI report, which includes CSI measurement results under the assumption of coherent joint transmission at one or more sites; The channel status is determined based on the CSI report; The CSI report also includes codebook type information, which indicates the codebook type in the CSI report. The codebook type includes a first codebook type and a second codebook type. The first codebook type indicates the acquisition of the frequency domain codebook of each of the multiple sites, and the second codebook type indicates the joint acquisition of the frequency domain codebook of the sites.

28. The method according to claim 27, characterized in that, The CSI report includes first information and second information.

29. The method according to claim 28, characterized in that, The first information includes at least one of the following: information on the number of sites, information on the number of non-zero broadband amplitude coefficients, and information on reference resource index indication.

30. The method according to claim 28, characterized in that, The second information includes all or part of the CSI measurement results of the site.

31. The method according to claim 29, characterized in that, The reference resource index indication information is obtained through a bitmap.

32. The method according to claim 28, characterized in that, The second information includes at least one of the following: spatial codebook information of each station in the CSI report, frequency codebook information of each station in the CSI report, and non-zero coefficient information of each station in the CSI report; wherein the frequency codebook information of each station may be the same or different.

33. The method according to claim 28, characterized in that, The second information includes i sets of information, where the value of i is the number of sites included in the CSI report.

34. The method according to claim 33, characterized in that, A CSI measurement result for one site corresponds to a group of information.

35. The method according to claim 34, characterized in that, The CSI measurement results of the site include at least one of the following: reference amplitude information of non-zero coefficients, spatial codebook information, frequency codebook information, non-zero coefficient information, reference signal resource indicator index, or reference signal resource indicator index code point.

36. The method according to claim 28, characterized in that, The second information includes i sets of information, where i = j + 1, and j is the number of sites included in the CSI report.

37. The method according to claim 36, characterized in that, The first group of information in group i includes the spatial codebook information of each station.

38. The method according to claim 36, characterized in that, The information in group i, excluding the first group, is as follows: a group of information corresponds to part / all of the CSI measurement results of a site.

39. The method according to claim 38, characterized in that, The partial / full CSI measurement results of the site include at least one of the following: reference amplitude information of the non-zero coefficients of the site, frequency domain codebook information of the site, and non-zero coefficient information of the site.

40. The method according to claim 28, characterized in that, The second information includes i sets of information; The x-th group of information in the i-th group includes at least one of the following: the frequency domain codebook information of each station, the reference amplitude information of the non-zero coefficients of each station, and x is a positive integer; The y-th information in the i-th group of information includes the spatial codebook information of each station, where y is a positive integer; The z-th group of information in the i-th group includes the non-zero coefficient information of each station, where z is a positive integer.

41. The method according to claim 28, characterized in that, The second information includes i sets of information, where i = j + 2, and j is the number of sites included in the CSI report.

42. The method according to claim 41, characterized in that, The first group of information in group i includes the spatial codebook information of each station.

43. The method according to claim 41, characterized in that, The second group of information in group i includes at least one of the following: frequency domain codebook information of each station, and reference amplitude information of each station.

44. The method according to claim 28, characterized in that, The frequency domain codebook information of each station is the same.

45. The method according to claim 41, characterized in that, The information in group i, excluding group 1 and group 2, is as follows: one group of information corresponds to part or all of the CSI measurement results of a site.

46. ​​The method according to claim 45, characterized in that, The partial / full CSI measurement results of the site include at least one of the following: reference amplitude information of the non-zero coefficients of the site, and information of the non-zero coefficients of the site.

47. The method according to any one of claims 33-46, characterized in that, The i-th group of information is arranged in descending order of priority.

48. A communication device, characterized in that, Includes units for implementing the method of any one of claims 1-47.

49. A communication device, characterized in that, Includes processor and transceiver; The transceiver is used to receive or send signals; The processor is configured to perform the method as described in any one of claims 1-47.

50. The communication device according to claim 49, characterized in that, The communication device also includes a memory: The memory is used to store computer programs; The processor is specifically configured to invoke the computer program from the memory, causing the communication device to perform the method as described in any one of claims 1-47.

51. A chip, characterized in that, The chip is used to receive network information; The chip is used to obtain a CSI report based on the network information, the CSI report including CSI measurement results under the assumption of coherent joint transmission of one or more sites; The network information includes codebook type indication information, which is used to indicate the codebook type in the CSI report; the codebook type includes a first codebook type and a second codebook type, the first codebook type is used to indicate the acquisition of the frequency domain codebook of each of the multiple sites, and the second codebook type is used to indicate the joint acquisition of the frequency domain codebook of the sites.

52. A chip, characterized in that, The chip is used to acquire a CSI report, which includes CSI measurement results under the assumption of coherent joint transmission at one or more sites; The chip is used to determine the channel state based on the CSI report; The CSI report also includes codebook type information, which indicates the codebook type in the CSI report. The codebook type includes a first codebook type and a second codebook type. The first codebook type indicates the acquisition of the frequency domain codebook of each of the multiple sites, and the second codebook type indicates the joint acquisition of the frequency domain codebook of the sites.

53. A module device, characterized in that, The module device includes a communication module, a power module, a storage module, and a chip module, wherein: The power module is used to provide electrical energy to the module device; The storage module is used to store data and instructions; The communication module is used for internal communication within the module device, or for communication between the module device and external devices; The chip module is used for: The communication module is triggered to receive network information; A CSI report is obtained based on the network information, and the CSI report includes CSI measurement results under the assumption of coherent joint transmission at one or more sites. The network information includes codebook type indication information, which is used to indicate the codebook type in the CSI report; the codebook type includes a first codebook type and a second codebook type, the first codebook type is used to indicate the acquisition of the frequency domain codebook of each of the multiple sites, and the second codebook type is used to indicate the joint acquisition of the frequency domain codebook of the sites.

54. A module device, characterized in that, The module device includes a communication module, a power module, a storage module, and a chip module, wherein: The power module is used to provide electrical energy to the module device; The storage module is used to store data and instructions; The communication module is used for internal communication within the module device, or for communication between the module device and external devices; The chip module is used for: The communication module is triggered to acquire a CSI report, which includes CSI measurement results under the assumption of one or more site coherent joint transmission. The channel status is determined based on the CSI report; The CSI report also includes codebook type information, which indicates the codebook type in the CSI report. The codebook type includes a first codebook type and a second codebook type. The first codebook type indicates the acquisition of the frequency domain codebook of each of the multiple sites, and the second codebook type indicates the joint acquisition of the frequency domain codebook of the sites.

55. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-readable instructions that, when executed on a communication device, cause the communication device to perform the method of any one of claims 1-47.

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