Channel State Information (CSI) reporting processing method, receiving method, and related equipment

Abstract

The present application discloses a CSI reporting processing method, a receiving method, and related devices, belonging to the field of communication technology. The CSI reporting processing method of an embodiment of the present application includes: a terminal determining a target CSI report; the terminal sending the target CSI report to a network-side device; wherein the target CSI report includes first CSI reporting information corresponding to single-frequency network transmission, the first CSI reporting information including first CSI, and the first CSI including at least one of the following: Doppler frequency offset information, channel phase information, and channel delay information.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and in particular relates to a channel state information (CSI) reporting processing method, a receiving method, and related equipment. Background Art

[0002] In a single-frequency network (SFN) transmission scenario, network-side equipment can have multiple Transmitting Receiving Points (TRPs) simultaneously transmitting the same data to a terminal. However, due to the varying distances between the terminal and the multiple TRPs, the transmission signals from each TRP reach the UE with varying delays, phases, and Doppler shifts, resulting in poor reception performance. Summary of the Invention

[0003] The embodiments of the present application provide a channel state information (CSI) reporting processing method, a receiving method, and related devices, which can solve the problem of poor terminal reception performance in SFN transmission scenarios.

[0004] In a first aspect, a CSI reporting processing method is provided, the method comprising:

[0005] The terminal determines the target CSI report;

[0006] The terminal sends the target CSI report to the network side device;

[0007] The target CSI report includes first CSI reporting information corresponding to single frequency network transmission, the first CSI reporting information includes first CSI, and the first CSI includes at least one of the following: Doppler frequency offset information, channel phase information, and channel delay information.

[0008] In a second aspect, a CSI receiving method is provided, the method comprising:

[0009] The network-side device receives the target CSI report sent by the terminal;

[0010] The target CSI report includes first CSI reporting information corresponding to single frequency network transmission, the first CSI reporting information includes first CSI, and the first CSI includes at least one of the following: Doppler frequency offset information, channel phase information, and channel delay information.

[0011] In a third aspect, a CSI reporting processing device is provided, the device including:

[0012] A determination module, configured to determine a target CSI report;

[0013] A first sending module, configured to send the target CSI report to a network-side device;

[0014] The target CSI report includes first CSI reporting information corresponding to single frequency network transmission, the first CSI reporting information includes first CSI, and the first CSI includes at least one of the following: Doppler frequency offset information, channel phase information, and channel delay information.

[0015] In a fourth aspect, a CSI receiving device is provided, the device including:

[0016] A first receiving module, configured to receive a target CSI report sent by a terminal;

[0017] The target CSI report includes first CSI reporting information corresponding to single frequency network transmission, the first CSI reporting information includes first CSI, and the first CSI includes at least one of the following: Doppler frequency offset information, channel phase information, and channel delay information.

[0018] In a fifth aspect, a terminal is provided, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect.

[0019] In a sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein:

[0020] The processor is configured to determine a target CSI report;

[0021] The communication interface is used to send the target CSI report to the network side device;

[0022] The target CSI report includes first CSI reporting information corresponding to single frequency network transmission, the first CSI reporting information includes first CSI, and the first CSI includes at least one of the following: Doppler frequency offset information, channel phase information, and channel delay information.

[0023] In the seventh aspect, a network side device is provided, which includes a processor, a memory, and a program or instruction stored in the memory and runnable on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0024] In an eighth aspect, a network side device is provided, including a processor and a communication interface, wherein:

[0025] The processor is configured to receive a target CSI report sent by a terminal;

[0026] The target CSI report includes first CSI reporting information corresponding to single frequency network transmission, the first CSI reporting information includes first CSI, and the first CSI includes at least one of the following: Doppler frequency offset information, channel phase information, and channel delay information.

[0027] In the ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0028] In the tenth aspect, an embodiment of the present application provides a chip, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0029] In the eleventh aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a non-volatile storage medium, and the computer program / program product is executed by at least one processor to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0030] In this embodiment of the present application, since at least one of Doppler frequency offset information, channel phase information, and channel delay information is reported to the network device via CSI reporting, the network device can perform corresponding operations based on the reported channel information to improve the terminal's reception performance. Therefore, this embodiment of the present application improves the terminal's reception performance in SFN transmission scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a structural diagram of a network system to which the embodiments of the present application can be applied;

[0032] Figure 2 This is a flowchart of a CSI reporting processing method provided in an embodiment of the present application;

[0033] Figure 3 This is a flowchart of a CSI receiving method provided in an embodiment of the present application;

[0034] Figure 4 This is a structural diagram of a CSI reporting processing device provided in an embodiment of the present application;

[0035] Figure 5 This is a structural diagram of a CSI receiving device provided in an embodiment of the present application;

[0036] Figure 6 This is a structural diagram of a communication device provided in an embodiment of the present application;

[0037] Figure 7 This is a structural diagram of a terminal provided in an embodiment of the present application;

[0038] Figure 8 This is a structural diagram of a network-side device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0039] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0040] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0041] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following descriptions. These technologies can also be applied to applications other than NR system applications, such as 6th Generation (6G) communication systems.

[0042] Figure 1The block diagram of a wireless communication system applicable to the embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device (Wearable Device) or a vehicle-mounted device (VUE), a pedestrian terminal (PUE) and other terminal-side devices. Wearable devices include: smart watches, bracelets, headphones, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 can be a base station or a core network device, where the base station can be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting and receiving point (Transmitting Receiving Point, TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0043] For ease of understanding, some of the contents involved in the embodiments of this application are described below:

[0044] 1. SFN transmission method

[0045] In an SFN network deployment, multiple remote radio heads (RRHs) are connected to an indoor baseband unit (BBU). This allows terminals to avoid frequent base station switching during high-speed movement. At the same time, multiple RRHs send the same data to the terminal.

[0046] Due to the varying positional relationships between the terminal and multiple RRHs, the power, delay, phase, and Doppler shift of the signals transmitted from the multiple RRHs reaching the terminal vary. When the UE is located at different locations on the track, the SFN signal transmitted to the UE will experience completely different channel characteristics. In particular, when the delay between the SFN signals from the two RRHs reaching the UE is significant, the SFN signal may experience severe deep frequency domain fading. Furthermore, when the UE moves at high speed between the two RRHs, two Doppler shifts of opposite signs may be present in the received signal, causing deep time domain fading of the SFN signal.

[0047] 2. Channel State Information (CSI) reporting framework

[0048] In the NR CSI reporting framework, this is done by associating CSI reports (for reporting) with CSI resources (for measurement).

[0049] CSI reports can be configured into the following three types:

[0050] Periodic CSI reporting (P-CSI): Transmitted only on the Physical Uplink Control Channel (PUCCH);

[0051] Semi-persistent CSI reporting (SP-CSI): transmitted on PUCCH or Physical Uplink Shared Channel (PUSCH);

[0052] Aperiodic CSI reporting (AP-CSI): Transmitted only on the PUSCH.

[0053] The CSI resource configuration (resource setting / CSI-ResourceConfig) is as follows:

[0054] M ≥ 1 resource settings;

[0055] A resource configuration contains S ≥ 1 CSI resource sets (resource set);

[0056] A resource set contains Ks≥1 CSI resources, including CSI reference signals (CSI-RS) and CSI interference measurements (CSI-IM).

[0057] 3. CSI reporting based on PUSCH

[0058] PUSCH-based CSI reporting supports Type I wideband or subband CSI, and also supports Type I ICSI.

[0059] For PUSCH-based Type I, Type II, and enhanced Type II CSI, a CSI report consists of two parts (Part 1 and Part 2), where the first CSI part (CSI Part 1, also referred to as Part 1) has a fixed payload size and indicates the number of information bits (bits) of the second CSI part (CSI Part 2, also referred to as Part 2). For Type I CSI feedback: Part 1 may include one or more of the rank indicator (RI), the CSI reference signal resource indicator (CSI-RS Resource Indicator, CRI), and the channel quality indicator (CQI) of the first codeword; Part 2 includes one or more of the precoding matrix indicator (PMI) and the CQI of the second codeword.

[0060] For Type II CSI feedback: Part 1 includes one or more of RI, CQI, and non-zero wideband amplitude coefficient indication for each layer of Type II CSI, and Part 2 includes the PMI of Type II CSI.

[0061] For enhanced Type II CSI feedback: Part 1 includes RI, CQI, and an indication of the total number of non-zero amplitude coefficients of enhanced Type II CSI across layers; Type II includes the PMI of the enhanced Type II CSI.

[0062] When the CSI reported based on the PUSCH includes Part 1 and Part 2, the UE can delete part of the Part 2 content. The deletion rules of Part 2 are in descending order of priority.

[0063] For enhanced Type II CSI reporting, Group 0 includes index i 1,1 、i 1,2 and i 1,8,l (l=1,…,v); Group1 contains index i 1,5 (If reported), i 1,6,l , high priority part i 1,7,l 、i 2,3,l , high priority part i 2,4,l and the high priority part i2,5,l (l=1,…,v); Group2 includes the low priority part i 1,7,l , low priority part i 2,4,l and the low priority part i 2,5,l (l=1,…,v).

[0064] 4. PUCCH-based CSI reporting

[0065] Periodic CSI reporting based on PUCCH formats 2, 3, and 4 supports wideband Type I CSI;

[0066] PUCCH-based semi-persistent CSI reporting supports Type I CSI;

[0067] Semi-persistent CSI reporting based on PUCCH format 2 supports wideband Type I CSI;

[0068] Semi-persistent CSI reporting based on PUCCH format 3 or 4 supports wideband and subband Type I CSI, as well as Type II CSI Part 1;

[0069] For subband Type I CSI, and based on PUCCH format 3 or 4 reporting, the CSI payload can be divided into two parts (Part 1 and Part 2). Part 1 includes part or all of RI, CRI, and CQI corresponding to the first codeword, and Part 2 includes PMI and CQI corresponding to the second codeword.

[0070] If a CSI report contains Part 1 and Part 2, the UE can delete part of the content of Part 2. The priority order is consistent with the priority table based on PUSCH reporting.

[0071] The following describes in detail the channel state information (CSI) reporting method provided by the embodiment of the present application through some embodiments and application scenarios in conjunction with the accompanying drawings.

[0072] See Figure 2 , Figure 2 This is a flow chart of a channel state information CSI reporting processing method provided by an embodiment of the present application, such as Figure 2 As shown, the following steps are included:

[0073] Step 201: The terminal determines a target CSI report;

[0074] Step 202: The terminal sends the target CSI report to a network device.

[0075] The target CSI report includes first CSI reporting information corresponding to single frequency network transmission, the first CSI reporting information includes first CSI, and the first CSI includes at least one of the following: Doppler frequency offset information, channel phase information, and channel delay information.

[0076] In an embodiment of the present application, the target CSI report may include only the first CSI or other information in addition to the first CSI. The first CSI can be understood as channel information. Since at least one of Doppler frequency offset information, channel phase information, and channel delay information is reported to the network device via the CSI report, the network device can perform corresponding operations based on the reported channel information to improve the terminal's reception performance. Therefore, the present embodiment improves the terminal's reception performance in SFN transmission scenarios.

[0077] Optionally, the first CSI may be reported in the same CSI report as other CSI reporting information. For example, in some embodiments, the first CSI reporting information further includes second CSI, where the second CSI information includes at least one of the following: a channel state information reference signal resource indicator (CRI), a rank indicator (RI), a layer indicator (LI), a precoding matrix indicator (PMI), and a channel quality indicator (CQI).

[0078] Optionally, the terminal determines a target CSI report, including:

[0079] The terminal determines the target CSI report according to the first CSI reporting amount in the CSI report configuration sent by the network side device;

[0080] The first CSI reporting amount includes any one of the following:

[0081] CRI, RI, LI, PMI, CQI and the first CSI;

[0082] CRI, RI, PMI, CQI and the first CSI;

[0083] CRI, RI, wideband PMI and the first CSI;

[0084] CRI, RI, wideband PMI, CQI and the first CSI;

[0085] CRI, RI, CQI and the first CSI.

[0086] In the embodiment of the present application, the wideband PMI can be understood as i1, or the wideband PMI corresponding to i1. It should be understood that the above-mentioned first reporting quantity can be understood as the CSI-related information that the network-side device expects to report in the target CSI report. The terminal can determine the target CSI report based on the first reporting quantity. The target CSI report determined by the terminal may include all the information corresponding to the first CSI reporting quantity, or it may be a subset corresponding to the first CSI reporting quantity. For example, when the first CSI reporting quantity includes CRI, RI, CQI, and the first CSI, the target CSI report may include CRI, RI, CQI, and the first CSI, or it may include RI, CQI, and the first CSI.

[0087] Among them, CRI may correspond to two NZP-CSI-RS resources from two non-zero power channel state information reference signal (Non-Zero Power CSI-RS, NZP-CSI-RS) resource sets, or correspond to two NZP-CSI-RS resources from two NZP-CSI-RS resource subsets, and the two NZP-CSI-RS resource subsets are from the same NZP-CSI-RS resource set. CRI can also correspond to two tracking reference signal (Tracking Reference Signal, TRS) resource sets, or two TRS resource subsets, and the two TRS resource subsets are from the same TRS set. The NZP-CSI-RS resource subset can be referred to as an NZP-CSI-RS resource group, and the TRS resource subset can be referred to as a TRS resource group.

[0088] Optionally, in some embodiments, the terminal sending the target CSI report to the network side device includes:

[0089] The terminal maps the first CSI reporting information to a corresponding CSI field in uplink control information (UCI) according to a preset mapping rule;

[0090] The terminal sends the uplink control information.

[0091] It should be understood that the above-mentioned preset mapping rules can be set according to actual needs. For example, in some embodiments, the preset mapping rules include at least one of the following:

[0092] When the second CSI part does not exist in the target CSI report, mapping the CSI field corresponding to the first CSI reporting information according to the first mapping order;

[0093] When the target CSI report contains the second part of CSI and the target CSI field corresponding to the first CSI is mapped to the first part of CSI, mapping the CSI field corresponding to the first CSI reporting information according to the second mapping order;

[0094] When the target CSI report includes a second CSI part and the target CSI domain corresponding to the first CSI is mapped to the second CSI part, the CSI domain corresponding to the first CSI reporting information is mapped according to a third mapping order.

[0095] In the embodiment of the present application, the second part of the CSI may be referred to as CSI Part2 or Part2, which may specifically include PMI and CQI corresponding to the second codeword. The second part of the CSI may be referred to as CSI Part1 or Part1, which may specifically include RI, CRI, and part or all of the CQI corresponding to the first codeword.

[0096] Optionally, in some embodiments, the first mapping order includes any one of the following:

[0097] CRI field, RI field, LI field, target CSI field, 0-filled field, PMI wideband information field, wideband CQI field;

[0098] CRI field, RI field, LI field, zero-filled field, target CSI field, PMI broadband information field, broadband CQI field;

[0099] CRI field, RI field, LI field, 0-filling field, PMI broadband information field, broadband CQI field, target CSI field.

[0100] It should be understood that in the embodiment of the present application, the bit length in the above-mentioned zero-padding field is associated with the length of the target CSI field. The CSI field included in the above-mentioned first CSI reporting information is the full set or subset of the CSI fields included in the first mapping order, that is, each field in the first mapping order is optional when mapping. For example, when the first CSI reporting information includes CRI, the CRI field is mapped, and when the first CSI reporting information does not include CRI, the CRI field is not mapped. It should be noted that the number of each CSI field included in the above-mentioned first CSI reporting information can be one or more. For example, two target CSI fields can be included.

[0101] Taking the first CSI as Doppler frequency offset information as an example, assuming that the first mapping order is CRI field, RI field, LI field, 0-filled field, PMI wideband information field, wideband CQI field, target CSI field, the mapping order of the CSI field in the target CSI report is shown in the following table:

[0102]

[0103]

[0104] It should be understood that the Doppler frequency shift information field 2 can also be used to map differential Doppler frequency shift information.

[0105] Optionally, in some embodiments, the target CSI report may have only one Doppler frequency shift information field, as described in the following table:

[0106]

[0107] The tables in the following embodiments are similar, and the target CSI report may have only one Doppler frequency shift information field, which will not be described again.

[0108] Optionally, in some embodiments, the second mapping order includes any one of the following:

[0109] CRI domain, RI domain, target CSI domain, CQI domain, non-zero wideband amplitude coefficient domain;

[0110] CRI domain, RI domain, CQI domain, target CSI domain, non-zero wideband amplitude coefficient domain;

[0111] CRI domain, RI domain, CQI domain, non-zero wideband amplitude coefficient domain, target CSI domain.

[0112] In an embodiment of the present application, the CSI domain included in the above-mentioned first CSI reporting information is the full set or subset of the CSI domain included in the second mapping order, that is, each domain in the second mapping order is optional when mapping. For example, when the first CSI reporting information includes CRI, the CRI domain is mapped, and when the first CSI reporting information does not include CRI, the CRI domain is not mapped.

[0113] Taking the first CSI as Doppler frequency offset information as an example, in one embodiment, when the second mapping order is CRI field, RI field, CQI field, non-zero wideband amplitude coefficient field, and target CSI field, the mapping order of the CSI fields in the target CSI report can be as shown in the following table:

[0114]

[0115] In another embodiment, when the second mapping order is CRI field, RI field, CQI field, non-zero wideband amplitude coefficient field, and target CSI field, the mapping order of the CSI field in the target CSI report may also be as shown in the following table:

[0116]

[0117] Optionally, in some embodiments, the third mapping order includes any one of the following:

[0118] Wideband CQI field, LI field, target CSI field, PMI wideband information field;

[0119] Wideband CQI field, LI field, PMI wideband information field, target CSI field.

[0120] Taking the first CSI as Doppler frequency offset information as an example, in one embodiment, when the third mapping order is the wideband CQI field, the LI field, the PMI wideband information field, and the target CSI field, the mapping order of the CSI fields in the target CSI report can be as shown in the following table:

[0121]

[0122] Optionally, in some embodiments, the terminal maps the first CSI reporting information to a corresponding CSI field in the uplink control information according to a preset mapping rule, further comprising:

[0123] When a first reporting opportunity corresponding to the first CSI is the same as a second reporting opportunity corresponding to the second CSI information, the terminal maps target information to a corresponding CSI field in the uplink control information according to a preset mapping rule, the target information including the first CSI and the second CSI information;

[0124] When a first reporting opportunity corresponding to the first CSI information is different from a second reporting opportunity corresponding to the second CSI information, performing a first operation;

[0125] The first operation includes:

[0126] At the first reporting opportunity, mapping the first CSI to a corresponding CSI field in the uplink control information;

[0127] In the second reporting opportunity, the first CSI mapping is not performed in the uplink control information; or information in the target CSI domain corresponding to the first CSI in the uplink control information is set to a preset value.

[0128] In the embodiment of the present application, the first reporting opportunity and the second reporting opportunity may be the same or different. When the first reporting opportunity and the second reporting opportunity are the same, each CSI field in the target CSI report may be directly mapped and reported. When the first reporting opportunity and the second reporting opportunity are different, the corresponding CSI field may be mapped and reported at the corresponding reporting opportunity. For CSI fields that are not mapped, the information in the corresponding CSI field is set to a preset value in the uplink control information, for example, filled with 0.

[0129] Optionally, in some embodiments, the PMI in the target CSI report includes a first PMI and a second PMI;

[0130] The first PMI is obtained based on a first NZP-CSI-RS resource measurement, and the second PMI is obtained based on a second NZP-CSI-RS resource measurement.

[0131] In the embodiment of the present application, the first NZP-CSI-RS resource and the second NZP-CSI-RS resource are configured by the network side device in the CSI resource configuration, and the CSI resource configuration is associated with the CSI reporting configuration (report setting) corresponding to the CSI report.

[0132] Optionally, in some embodiments, the above-mentioned first CSI can be set to be reported in an independent CSI report, that is, in an embodiment of the present application, the first CSI reporting information may only include the above-mentioned first CSI, or the first CSI reporting information may also include CRI in addition to the first CSI.

[0133] In the embodiment of the present application, the terminal determines the target CSI report, including:

[0134] The terminal determines the target CSI report according to the second CSI reporting amount in the CSI report configuration sent by the network side device;

[0135] The second CSI reporting amount includes any one of the following:

[0136] CRI and the first CSI;

[0137] The first CSI.

[0138] It should be understood that the above-mentioned first reporting quantity can be understood as CSI-related information that the network-side device expects to report in the target CSI report. The terminal can determine the target CSI report based on the first reporting quantity. The target CSI report determined by the terminal may include all information corresponding to the first CSI reporting quantity, or a subset of the information corresponding to the first CSI reporting quantity. For example, when the first CSI reporting quantity includes CRI and the first CSI, the target CSI report may include CRI and the first CSI, or may include only the first CSI.

[0139] Optionally, in some embodiments, the CRI is associated with a tracking reference signal TRS resource, and the TRS resource is a measurement resource of the first CSI.

[0140] In the embodiment of the present application, the manner in which the CRI is associated with the tracking reference signal TRS resource includes any one of the following:

[0141] The CRI is associated with at least one TRS resource set;

[0142] The CRI is associated with at least one TRS resource subset.

[0143] It should be understood that the association of the CRI with multiple TRS resource sets can be understood as a combined association of the CRI with one TRS resource set. The above TRS resource subset can be referred to as a TRS resource group.

[0144] Optionally, the first CSI includes first channel information measured based on a first TRS resource and second channel information measured based on a second TRS resource, and the target CSI field corresponding to the first CSI includes at least one of the following:

[0145] a first CSI field and a second CSI field, the first CSI field being used to map the first channel information, and the second CSI field being used to map the second channel information;

[0146] a third CSI field, where the third CSI field is used to jointly map the first channel information and the second channel information;

[0147] A fourth CSI field is used to map a difference between the first channel information and the second channel information, or an absolute value of a difference between the first channel information and the second channel information.

[0148] In an embodiment of the present application, the above-mentioned first channel information and second channel information belong to the same type of channel information. For example, the first channel information and the second channel information are both target channel information, and the target channel information includes at least one of Doppler frequency deviation information, channel phase information and channel delay information.

[0149] Optionally, in some embodiments, before the terminal determines the target CSI report, the method further includes:

[0150] The terminal receives first indication information sent by a network-side device, where the first indication information is used to indicate a CSI reporting mode; the CSI reporting mode includes at least one of a first reporting mode and a second reporting mode:

[0151] The first reporting method includes reporting a first object in one CSI report, where the first object includes the first CSI reporting information and N second CSI reporting information corresponding one-to-one to N single-transmitting / receiving point transmissions, where N is a positive integer; the second reporting method includes reporting a second object in one CSI report, where the second object is the CSI reporting information corresponding to the optimal transmission between the single-frequency network transmission and the N single-transmitting / receiving point transmissions.

[0152] In the embodiment of the present application, the specific value of N can be indicated by the network side device or agreed upon according to the default rules. It should be understood that when the terminal reports the CSI report, the single transmission and reception point transmission and SFN transmission corresponding to the CSI report do not actually occur, so the transmission can be understood as a transmission hypothesis. In other words, the above-mentioned first reporting method can be understood as the terminal reporting simultaneously in one CSI report, the CSI reporting information corresponding to each of the N single transmission and reception point transmission hypotheses, and the CSI reporting information corresponding to one SFN transmission hypothesis. The network side device can decide to adopt the single transmission and reception point transmission method or the SFN transmission method in subsequent transmissions based on the CSI report reported by the terminal; the above-mentioned second reporting method can be understood as the terminal reporting in one CSI report: the CSI reporting information corresponding to the target transmission hypothesis in N single transmission and reception point transmission hypotheses and one SFN transmission hypothesis, and the target transmission hypothesis is the optimal transmission hypothesis.

[0153] Optionally, the above-mentioned optimal transmission may be determined based on at least one of the following parameters: CQI, RI, and Doppler frequency offset.

[0154] Optionally, in some embodiments, before the terminal receives the first indication information sent by the network-side device, the method further includes:

[0155] The terminal sends second indication information to the network side device, where the second indication information is used to indicate whether the capability of the terminal supports the CSI reporting method.

[0156] In an embodiment of the present application, the terminal can report to the network side device whether the terminal's capabilities support the CSI reporting method, and then the network side device indicates the corresponding CSI reporting method based on the terminal's reporting, thereby further optimizing the terminal's CSI reporting.

[0157] Optionally, in some embodiments, the priority of the CSI report satisfies at least one of the following:

[0158] The priority of the first CSI report is higher than the priority of the CSI report carrying the first CSI, where the first CSI report is a CSI report carrying a reference signal received power or a signal to interference plus noise ratio;

[0159] The priority of the CSI report carrying the first CSI is higher than the priority of the CSI report not carrying the first CSI;

[0160] The priority of the CSI report carrying the first CSI is higher than the priority of other CSI reports, and the other CSI reports include CSI reports other than the first CSI report in the CSI reports that do not carry the first CSI.

[0161] Optionally, in some embodiments, the target CSI report satisfies at least one of the following:

[0162] The priority of the first CSI reporting information is higher than the priority of the second CSI reporting information, or the priority of the second CSI reporting information is higher than the priority of the first CSI reporting information;

[0163] The priority of aperiodic CSI reporting based on the physical uplink shared channel PUSCH report is higher than the priority of semi-persistent CSI reporting based on the PUSCH report;

[0164] The priority of the semi-persistent CSI report based on the PUSCH report is higher than the priority of the semi-persistent CSI report based on the physical uplink control channel PUCCH report;

[0165] The priority of the semi-persistent CSI report based on the PUCCH report is higher than the priority of the periodic CSI report based on the PUCCH report.

[0166] See Figure 3 , Figure 3 This is a flow chart of another channel state information CSI receiving method provided in an embodiment of the present application. Figure 3 As shown, the following steps are included:

[0167] Step 301: A network-side device receives a target CSI report sent by a terminal.

[0168] The target CSI report includes first CSI reporting information corresponding to single frequency network transmission, the first CSI reporting information includes first CSI, and the first CSI includes at least one of the following: Doppler frequency offset information, channel phase information, and channel delay information.

[0169] Optionally, the first CSI reporting information also includes second CSI information, and the second CSI information includes at least one of the following: channel state information reference signal resource indication CRI, rank indication RI, layer indication LI, precoding matrix indication PMI and channel quality indication CQI.

[0170] Optionally, before the network-side device receives the target CSI report sent by the terminal, the method further includes:

[0171] The network side device sends a CSI report configuration to the terminal;

[0172] The CSI reporting configuration includes a first CSI reporting amount, where the first CSI reporting amount is used to determine the target CSI report, and the first CSI reporting amount includes any one of the following:

[0173] CRI, RI, LI, PMI, CQI and the first CSI;

[0174] CRI, RI, PMI, CQI and the first CSI;

[0175] CRI, RI, wideband PMI and the first CSI;

[0176] CRI, RI, wideband PMI, CQI and the first CSI;

[0177] CRI, RI, CQI and the first CSI.

[0178] Optionally, the PMI in the target CSI report includes a first PMI and a second PMI;

[0179] The first PMI information is obtained based on measurement of a first non-zero power channel state information reference signal resource, and the second PMI information is obtained based on measurement of a second non-zero power channel state information reference signal resource.

[0180] Optionally, the first CSI reporting information also includes CRI.

[0181] Optionally, before the network-side device receives the target CSI report sent by the terminal, the method further includes:

[0182] The network side device sends a CSI report configuration to the terminal;

[0183] The CSI reporting configuration includes a second CSI reporting amount, where the second CSI reporting amount is used to determine the target CSI report, and the second CSI reporting amount includes any one of the following:

[0184] CRI and the first CSI;

[0185] The first CSI.

[0186] Optionally, the CRI is associated with a tracking reference signal TRS resource, and the TRS resource is a measurement resource of the first CSI.

[0187] Optionally, the manner of associating the CRI with the tracking reference signal TRS resource includes any one of the following:

[0188] The CRI is associated with at least one TRS resource set;

[0189] The CRI is associated with at least one TRS resource subset.

[0190] Optionally, the first CSI includes first channel information measured based on a first TRS resource and second channel information measured based on a second TRS resource, and the target CSI field corresponding to the first CSI includes at least one of the following:

[0191] a first CSI field and a second CSI field, the first CSI field being used to map the first channel information, and the second CSI field being used to map the second channel information;

[0192] a third CSI field, where the third CSI field is used to jointly map the first channel information and the second channel information;

[0193] A fourth CSI field is used to map a difference between the first channel information and the second channel information, or an absolute value of a difference between the first channel information and the second channel information.

[0194] Optionally, before the network-side device receives the target CSI report sent by the terminal, the method further includes:

[0195] The first indication information sent by the network side device to the terminal is used to indicate a CSI reporting mode; the CSI reporting mode includes at least one of a first reporting mode and a second reporting mode:

[0196] The first reporting method includes reporting a first object in one CSI report, where the first object includes the first CSI reporting information and N second CSI reporting information corresponding one-to-one to N single-transmitting / receiving point transmissions, where N is a positive integer; the second reporting method includes reporting a second object in one CSI report, where the second object is the CSI reporting information corresponding to the optimal transmission between the single-frequency network transmission and the N single-transmitting / receiving point transmissions.

[0197] Optionally, the first indication information sent by the network side device to the terminal, the method further includes:

[0198] The network-side device receives second indication information sent by the terminal, where the second indication information is used to indicate whether the capability of the terminal supports the CSI reporting method.

[0199] Optionally, the priority of the CSI report satisfies at least one of the following:

[0200] The priority of the first CSI report is higher than the priority of the CSI report carrying the first CSI, where the first CSI report is a CSI report carrying a reference signal received power or a signal to interference plus noise ratio;

[0201] The priority of the CSI report carrying the first CSI is higher than the priority of the CSI report not carrying the first CSI;

[0202] The priority of the CSI report carrying the first CSI is higher than the priority of other CSI reports, and the other CSI reports include CSI reports other than the first CSI report in the CSI reports that do not carry the first CSI.

[0203] Optionally, the target CSI report satisfies at least one of the following:

[0204] The priority of the first CSI reporting information is higher than the priority of the second CSI reporting information, or the priority of the second CSI reporting information is higher than the priority of the first CSI reporting information;

[0205] The priority of aperiodic CSI reporting based on the physical uplink shared channel PUSCH report is higher than the priority of semi-persistent CSI reporting based on the PUSCH report;

[0206] The priority of the semi-persistent CSI report based on the PUSCH report is higher than the priority of the semi-persistent CSI report based on the physical uplink control channel PUCCH report;

[0207] The priority of the semi-persistent CSI report based on the PUCCH report is higher than the priority of the periodic CSI report based on the PUCCH report.

[0208] Optionally, when a preset condition is met, the network-side device determines that the optimal transmission corresponding to the target CSI report is single frequency network transmission, and the preset condition includes at least one of the following:

[0209] The target CSI report carries the first CSI;

[0210] The CRI value in the CRI field of the target CSI report is associated with single frequency network transmission;

[0211] The target CSI report includes a first transmission indication field, where the first transmission indication field indicates that the target CSI report corresponds to single frequency network transmission.

[0212] It should be noted that this embodiment is Figure 2 The embodiment shown corresponds to the implementation of the network side device. For specific implementation, please refer to Figure 2 The related descriptions of the embodiments shown and the achievement of the same beneficial effects are not repeated here to avoid duplication.

[0213] It should be noted that the CSI reporting processing method provided in the embodiments of the present application may be executed by a CSI reporting processing apparatus, or a control module in the CSI reporting processing apparatus for executing the CSI reporting processing method. In the embodiments of the present application, the CSI reporting processing apparatus provided in the embodiments of the present application is described by taking the CSI reporting processing apparatus executing the CSI reporting processing method as an example.

[0214] See Figure 4 , Figure 4 This is a structural diagram of a CSI reporting processing device provided in an embodiment of the present application, such as Figure 4 As shown, the CSI reporting processing device 400 includes:

[0215] A determination module 401 is configured to determine a target CSI report;

[0216] A first sending module 402 is configured to send the target CSI report to a network-side device;

[0217] The target CSI report includes first CSI reporting information corresponding to single frequency network transmission, the first CSI reporting information includes first CSI, and the first CSI includes at least one of the following: Doppler frequency offset information, channel phase information, and channel delay information.

[0218] Optionally, the first CSI reporting information also includes a second CSI, and the second CSI information includes at least one of the following: channel state information reference signal resource indication CRI, rank indication RI, layer indication LI, precoding matrix indication PMI and channel quality indication CQI.

[0219] Optionally, the determining module 401 is specifically configured to determine the target CSI report according to a first CSI reporting amount in the CSI report configuration sent by the network side device;

[0220] The first CSI reporting amount includes any one of the following:

[0221] CRI, RI, LI, PMI, CQI and the first CSI;

[0222] CRI, RI, PMI, CQI and the first CSI;

[0223] CRI, RI, wideband PMI and the first CSI;

[0224] CRI, RI, wideband PMI, CQI and the first CSI;

[0225] CRI, RI, CQI and the first CSI.

[0226] Optionally, the first sending module 402 includes:

[0227] a mapping unit, configured to map the first CSI reporting information to a corresponding CSI field in the uplink control information according to a preset mapping rule;

[0228] A sending unit is configured to send the uplink control information.

[0229] Optionally, the preset mapping rule includes at least one of the following:

[0230] When the second CSI part does not exist in the target CSI report, mapping the CSI field corresponding to the first CSI reporting information according to the first mapping order;

[0231] When the target CSI report contains the second part of CSI and the target CSI field corresponding to the first CSI is mapped to the first part of CSI, mapping the CSI field corresponding to the first CSI reporting information according to the second mapping order;

[0232] When the target CSI report includes a second CSI part and the target CSI domain corresponding to the first CSI is mapped to the second CSI part, the CSI domain corresponding to the first CSI reporting information is mapped according to a third mapping order.

[0233] Optionally, the first mapping order includes any one of the following:

[0234] CRI field, RI field, LI field, target CSI field, 0-filled field, PMI wideband information field, wideband CQI field;

[0235] CRI field, RI field, LI field, zero-filled field, target CSI field, PMI broadband information field, broadband CQI field;

[0236] CRI field, RI field, LI field, 0-filling field, PMI broadband information field, broadband CQI field, target CSI field.

[0237] Optionally, the second mapping order includes any one of the following:

[0238] CRI domain, RI domain, target CSI domain, CQI domain, non-zero wideband amplitude coefficient domain;

[0239] CRI domain, RI domain, CQI domain, target CSI domain, non-zero wideband amplitude coefficient domain;

[0240] CRI domain, RI domain, CQI domain, non-zero wideband amplitude coefficient domain, target CSI domain.

[0241] Optionally, the third mapping order includes any one of the following:

[0242] Wideband CQI field, LI field, target CSI field, PMI wideband information field;

[0243] Wideband CQI field, LI field, PMI wideband information field, target CSI field.

[0244] Optionally, the first sending module 402 is further configured to:

[0245] When a first reporting opportunity corresponding to the first CSI is the same as a second reporting opportunity corresponding to the second CSI information, the terminal maps target information to a corresponding CSI field in the uplink control information according to a preset mapping rule, the target information including the first CSI and the second CSI information;

[0246] When a first reporting opportunity corresponding to the first CSI information is different from a second reporting opportunity corresponding to the second CSI information, performing a first operation;

[0247] The first operation includes:

[0248] At the first reporting opportunity, mapping the first CSI to a corresponding CSI field in the uplink control information;

[0249] In the second reporting opportunity, the first CSI mapping is not performed in the uplink control information; or information in the target CSI domain corresponding to the first CSI in the uplink control information is set to a preset value.

[0250] Optionally, the PMI in the target CSI report includes a first PMI and a second PMI;

[0251] The first PMI is obtained based on measurement of a first non-zero power channel state information reference signal resource, and the second PMI is obtained based on measurement of a second non-zero power channel state information reference signal resource.

[0252] Optionally, the first CSI reporting information also includes CRI.

[0253] Optionally, the determining module is specifically configured to determine the target CSI report according to a second CSI reporting amount in the CSI report configuration sent by the network side device;

[0254] The second CSI reporting amount includes any one of the following:

[0255] CRI and the first CSI;

[0256] The first CSI.

[0257] Optionally, the CRI is associated with a tracking reference signal TRS resource, and the TRS resource is a measurement resource of the first CSI.

[0258] Optionally, the manner of associating the CRI with the tracking reference signal TRS resource includes any one of the following:

[0259] The CRI is associated with at least one TRS resource set;

[0260] The CRI is associated with at least one TRS resource subset.

[0261] Optionally, the first CSI includes first channel information measured based on a first TRS resource and second channel information measured based on a second TRS resource, and the target CSI field corresponding to the first CSI includes at least one of the following:

[0262] a first CSI field and a second CSI field, the first CSI field being used to map the first channel information, and the second CSI field being used to map the second channel information;

[0263] a third CSI field, where the third CSI field is used to jointly map the first channel information and the second channel information;

[0264] A fourth CSI field is used to map a difference between the first channel information and the second channel information, or an absolute value of a difference between the first channel information and the second channel information.

[0265] Optionally, the CSI reporting processing device 400 further includes:

[0266] The first receiving module is configured to receive first indication information sent by a network-side device, where the first indication information is used to indicate a CSI reporting mode; the CSI reporting mode includes at least one of a first reporting mode and a second reporting mode.

[0267] The first reporting method includes reporting a first object in one CSI report, where the first object includes the first CSI reporting information and N second CSI reporting information corresponding one-to-one to N single-transmitting / receiving point transmissions, where N is a positive integer; the second reporting method includes reporting a second object in one CSI report, where the second object is the CSI reporting information corresponding to the optimal transmission between the single-frequency network transmission and the N single-transmitting / receiving point transmissions.

[0268] Optionally, the first sending module 402 is further used to: send second indication information to the network side device, where the second indication information is used to indicate whether the capability of the terminal supports the CSI reporting method.

[0269] Optionally, the priority of the CSI report satisfies at least one of the following:

[0270] The priority of the first CSI report is higher than the priority of the CSI report carrying the first CSI, where the first CSI report is a CSI report carrying a reference signal received power or a signal to interference plus noise ratio;

[0271] The priority of the CSI report carrying the first CSI is higher than the priority of the CSI report not carrying the first CSI;

[0272] The priority of the CSI report carrying the first CSI is higher than the priority of other CSI reports, and the other CSI reports include CSI reports other than the first CSI report in the CSI reports that do not carry the first CSI, and the first CSI report is a CSI report carrying the reference signal received power or the signal to interference plus noise ratio.

[0273] Optionally, the target CSI report satisfies at least one of the following:

[0274] The priority of the first CSI reporting information is higher than the priority of the second CSI reporting information, or the priority of the second CSI reporting information is higher than the priority of the first CSI reporting information;

[0275] The priority of aperiodic CSI reporting based on the physical uplink shared channel PUSCH report is higher than the priority of semi-persistent CSI reporting based on the PUSCH report;

[0276] The priority of the semi-persistent CSI report based on the PUSCH report is higher than the priority of the semi-persistent CSI report based on the physical uplink control channel PUCCH report;

[0277] The priority of the semi-persistent CSI report based on the PUCCH report is higher than the priority of the periodic CSI report based on the PUCCH report.

[0278] The CSI reporting processing device provided in the embodiment of the present application can implement each process in the embodiment of the CSI reporting processing method in Figure 1. To avoid repetition, they are not described here.

[0279] It should be noted that the CSI receiving method provided in the embodiments of the present application may be executed by a CSI receiving device, or a control module in the CSI receiving device for executing the CSI receiving method. In the embodiments of the present application, the CSI receiving device performing the CSI receiving method is used as an example to illustrate the CSI receiving device provided in the embodiments of the present application.

[0280] See Figure 5 , Figure 5This is a structural diagram of a CSI receiving device provided in an embodiment of the present application. Figure 5 As shown, the CSI receiving apparatus 500 includes:

[0281] A second sending module 501 is configured to receive a target CSI report sent by a terminal;

[0282] The target CSI report includes first CSI reporting information corresponding to single frequency network transmission, the first CSI reporting information includes first CSI, and the first CSI includes at least one of the following: Doppler frequency offset information, channel phase information, and channel delay information.

[0283] Optionally, the first CSI reporting information also includes second CSI information, and the second CSI information includes at least one of the following: channel state information reference signal resource indication CRI, rank indication RI, layer indication LI, precoding matrix indication PMI and channel quality indication CQI.

[0284] Optionally, the second sending module 501 is further configured to send a CSI report configuration to the terminal;

[0285] The CSI reporting configuration includes a first CSI reporting amount, where the first CSI reporting amount is used to determine the target CSI report, and the first CSI reporting amount includes any one of the following:

[0286] CRI, RI, LI, PMI, CQI and the first CSI;

[0287] CRI, RI, PMI, CQI and the first CSI;

[0288] CRI, RI, wideband PMI and the first CSI;

[0289] CRI, RI, wideband PMI, CQI and the first CSI;

[0290] CRI, RI, CQI and the first CSI.

[0291] Optionally, the PMI in the target CSI report includes a first PMI and a second PMI;

[0292] The first PMI information is obtained based on measurement of a first non-zero power channel state information reference signal resource, and the second PMI information is obtained based on measurement of a second non-zero power channel state information reference signal resource.

[0293] Optionally, the first CSI reporting information also includes CRI.

[0294] Optionally, the second sending module 501 is further configured to send a CSI report configuration to the terminal;

[0295] The CSI reporting configuration includes a second CSI reporting amount, where the second CSI reporting amount is used to determine the target CSI report, and the second CSI reporting amount includes any one of the following:

[0296] CRI and the first CSI;

[0297] The first CSI.

[0298] Optionally, the CRI is associated with a tracking reference signal TRS resource, and the TRS resource is a measurement resource of the first CSI.

[0299] Optionally, the manner of associating the CRI with the tracking reference signal TRS resource includes any one of the following:

[0300] The CRI is associated with at least one TRS resource set;

[0301] The CRI is associated with at least one TRS resource subset.

[0302] Optionally, the first CSI includes first channel information measured based on a first TRS resource and second channel information measured based on a second TRS resource, and the target CSI field corresponding to the first CSI includes at least one of the following:

[0303] a first CSI field and a second CSI field, the first CSI field being used to map the first channel information, and the second CSI field being used to map the second channel information;

[0304] a third CSI field, where the third CSI field is used to jointly map the first channel information and the second channel information;

[0305] A fourth CSI field is used to map a difference between the first channel information and the second channel information, or an absolute value of a difference between the first channel information and the second channel information.

[0306] Optionally, the second sending module 501 is further configured to send first indication information to the terminal, where the first indication information is used to indicate a CSI reporting mode; the CSI reporting mode includes at least one of a first reporting mode and a second reporting mode:

[0307] The first reporting method includes reporting a first object in one CSI report, where the first object includes the first CSI reporting information and N second CSI reporting information corresponding one-to-one to N single-transmitting / receiving point transmissions, where N is a positive integer; the second reporting method includes reporting a second object in one CSI report, where the second object is the CSI reporting information corresponding to the optimal transmission between the single-frequency network transmission and the N single-transmitting / receiving point transmissions.

[0308] Optionally, the CSI receiving device 500 further includes:

[0309] The second receiving module is used to receive second indication information sent by the terminal, where the second indication information is used to indicate whether the capability of the terminal supports the CSI reporting method.

[0310] Optionally, the priority of the CSI report satisfies at least one of the following:

[0311] The priority of the first CSI report is higher than the priority of the CSI report carrying the first CSI, where the first CSI report is a CSI report carrying a reference signal received power or a signal to interference plus noise ratio;

[0312] The priority of the CSI report carrying the first CSI is higher than the priority of the CSI report not carrying the first CSI;

[0313] The priority of the CSI report carrying the first CSI is higher than the priority of other CSI reports, and the other CSI reports include CSI reports other than the first CSI report in the CSI reports that do not carry the first CSI.

[0314] Optionally, the target CSI report satisfies at least one of the following:

[0315] The priority of the first CSI reporting information is higher than the priority of the second CSI reporting information, or the priority of the second CSI reporting information is higher than the priority of the first CSI reporting information;

[0316] The priority of aperiodic CSI reporting based on the physical uplink shared channel PUSCH report is higher than the priority of semi-persistent CSI reporting based on the PUSCH report;

[0317] The priority of the semi-persistent CSI report based on the PUSCH report is higher than the priority of the semi-persistent CSI report based on the physical uplink control channel PUCCH report;

[0318] The priority of the semi-persistent CSI report based on the PUCCH report is higher than the priority of the periodic CSI report based on the PUCCH report.

[0319] Optionally, when a preset condition is met, the network-side device determines that the optimal transmission corresponding to the target CSI report is single frequency network transmission, and the preset condition includes at least one of the following:

[0320] The target CSI report carries the first CSI;

[0321] The CRI value in the CRI field of the target CSI report is associated with single frequency network transmission;

[0322] The target CSI report includes a first transmission indication field, where the first transmission indication field indicates that the target CSI report corresponds to single frequency network transmission.

[0323] The CSI receiving device provided in the embodiment of the present application can implement each process in the embodiment of the CSI receiving method in the figure. To avoid repetition, they are not described here.

[0324] The CSI reporting and processing device and the CSI receiving device in the embodiments of the present application can be a device, a device or electronic device with an operating system, or a component, integrated circuit, or chip in a terminal. The device can be a mobile terminal or a non-mobile terminal. For example, the mobile terminal can include, but is not limited to, the types of terminal 11 listed above, and the non-mobile terminal can be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a teller machine, or a self-service machine, etc., and the embodiments of the present application do not specifically limit this.

[0325] The CSI reporting processing device and CSI receiving device provided in the embodiments of the present application can achieve Figures 2 to 3 The various processes implemented by the method embodiment achieve the same technical effect and are not described here again to avoid repetition.

[0326] Optional, such as Figure 6 As shown, an embodiment of the present application further provides a communication device 600, including a processor 601, a memory 602, and a program or instruction stored in the memory 602 and executable on the processor 601. For example, when the communication device 600 is a terminal, the program or instruction, when executed by the processor 601, implements the various processes of the above-mentioned CSI reporting processing method embodiment and can achieve the same technical effects. When the communication device 600 is a network-side device, the program or instruction, when executed by the processor 601, implements the various processes of the above-mentioned CSI receiving method embodiment and can achieve the same technical effects. To avoid repetition, they are not further described here.

[0327] An embodiment of the present application also provides a terminal, including a processor and a communication interface, the processor is used to determine a target CSI report; the communication interface is used to send the target CSI report to a network-side device; wherein the target CSI report includes first CSI reporting information corresponding to a single-frequency network transmission, the first CSI reporting information includes a first CSI, and the first CSI includes at least one of the following: Doppler frequency deviation information, channel phase information, and channel delay information. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Figure 7 A schematic diagram of the hardware structure of a terminal for implementing various embodiments of the present application.

[0328] The terminal 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709 and at least some of the components of the processor 710.

[0329] Those skilled in the art will understand that the terminal 700 may also include a power supply (such as a battery) to power each component, and the power supply may be logically connected to the processor 710 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system. Figure 7 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be repeated here.

[0330] It should be understood that in an embodiment of the present application, the input unit 704 may include a graphics processing unit (GPU) and a microphone, and the graphics processor processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 706 may include a display panel, and the display panel may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes a touch panel and other input devices. A touch panel is also called a touch screen. The touch panel may include two parts: a touch detection device and a touch controller. Other input devices may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0331] In this embodiment of the present application, the radio frequency unit 701 receives downlink data from the network-side device and transmits it to the processor 710 for processing. Furthermore, the radio frequency unit 701 transmits uplink data to the network-side device. Typically, the radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0332] The memory 709 can be used to store software programs or instructions and various data. The memory 109 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 709 may include a high-speed random access memory and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. For example, at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device.

[0333] Processor 710 may include one or more processing units. Optionally, processor 710 may integrate an application processor and a modem processor. The application processor primarily processes the operating system, user interface, and application programs or instructions, while the modem processor primarily processes wireless communications, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 710.

[0334] The processor 710 is configured to determine the target CSI report.

[0335] The radio frequency unit 701 is configured to send the target CSI report to the network side device;

[0336] The target CSI report includes first CSI reporting information corresponding to single frequency network transmission, the first CSI reporting information includes first CSI, and the first CSI includes at least one of the following: Doppler frequency offset information, channel phase information, and channel delay information.

[0337] In this embodiment of the present application, since at least one of Doppler frequency offset information, channel phase information, and channel delay information is reported to the network device via CSI reporting, the network device can perform corresponding operations based on the reported channel information to improve the terminal's reception performance. Therefore, this embodiment of the present application improves the terminal's reception performance in SFN transmission scenarios.

[0338] Optionally, the first CSI reporting information also includes a second CSI, and the second CSI information includes at least one of the following: channel state information reference signal resource indication CRI, rank indication RI, layer indication LI, precoding matrix indication PMI and channel quality indication CQI.

[0339] Optionally, the processor 710 is specifically configured to determine the target CSI report according to a first CSI reporting amount in the CSI report configuration sent by the network side device;

[0340] The first CSI reporting amount includes any one of the following:

[0341] CRI, RI, LI, PMI, CQI and the first CSI;

[0342] CRI, RI, PMI, CQI and the first CSI;

[0343] CRI, RI, wideband PMI and the first CSI;

[0344] CRI, RI, wideband PMI, CQI and the first CSI;

[0345] CRI, RI, CQI and the first CSI.

[0346] Optionally, the radio frequency unit 701 includes:

[0347] a mapping unit, configured to map the first CSI reporting information to a corresponding CSI field in the uplink control information according to a preset mapping rule;

[0348] A sending unit is configured to send the uplink control information.

[0349] Optionally, the preset mapping rule includes at least one of the following:

[0350] When the second CSI part does not exist in the target CSI report, mapping the CSI field corresponding to the first CSI reporting information according to the first mapping order;

[0351] When the target CSI report contains the second part of CSI and the target CSI field corresponding to the first CSI is mapped to the first part of CSI, mapping the CSI field corresponding to the first CSI reporting information according to the second mapping order;

[0352] When the target CSI report includes a second CSI part and the target CSI domain corresponding to the first CSI is mapped to the second CSI part, the CSI domain corresponding to the first CSI reporting information is mapped according to a third mapping order.

[0353] Optionally, the first mapping order includes any one of the following:

[0354] CRI field, RI field, LI field, target CSI field, 0-filled field, PMI wideband information field, wideband CQI field;

[0355] CRI field, RI field, LI field, zero-filled field, target CSI field, PMI wideband information field, wideband CQI field;

[0356] CRI field, RI field, LI field, 0-filling field, PMI broadband information field, broadband CQI field, target CSI field.

[0357] Optionally, the second mapping order includes any one of the following:

[0358] CRI domain, RI domain, target CSI domain, CQI domain, non-zero wideband amplitude coefficient domain;

[0359] CRI domain, RI domain, CQI domain, target CSI domain, non-zero wideband amplitude coefficient domain;

[0360] CRI domain, RI domain, CQI domain, non-zero wideband amplitude coefficient domain, target CSI domain.

[0361] Optionally, the third mapping order includes any one of the following:

[0362] Wideband CQI field, LI field, target CSI field, PMI wideband information field;

[0363] Wideband CQI field, LI field, PMI wideband information field, target CSI field.

[0364] Optionally, the radio frequency unit 701 is further configured to:

[0365] When a first reporting opportunity corresponding to the first CSI is the same as a second reporting opportunity corresponding to the second CSI information, the terminal maps target information to a corresponding CSI field in the uplink control information according to a preset mapping rule, the target information including the first CSI and the second CSI information;

[0366] When a first reporting opportunity corresponding to the first CSI information is different from a second reporting opportunity corresponding to the second CSI information, performing a first operation;

[0367] The first operation includes:

[0368] At the first reporting opportunity, mapping the first CSI to a corresponding CSI field in the uplink control information;

[0369] In the second reporting opportunity, the first CSI mapping is not performed in the uplink control information; or information in the target CSI domain corresponding to the first CSI in the uplink control information is set to a preset value.

[0370] Optionally, the PMI in the target CSI report includes a first PMI and a second PMI;

[0371] The first PMI is obtained based on measurement of a first non-zero power channel state information reference signal resource, and the second PMI is obtained based on measurement of a second non-zero power channel state information reference signal resource.

[0372] Optionally, the first CSI reporting information also includes CRI.

[0373] Optionally, the determining module is specifically configured to determine the target CSI report according to a second CSI reporting amount in the CSI report configuration sent by the network side device;

[0374] The second CSI reporting amount includes any one of the following:

[0375] CRI and the first CSI;

[0376] The first CSI.

[0377] Optionally, the CRI is associated with a tracking reference signal TRS resource, and the TRS resource is a measurement resource of the first CSI.

[0378] Optionally, the manner of associating the CRI with the tracking reference signal TRS resource includes any one of the following:

[0379] The CRI is associated with at least one TRS resource set;

[0380] The CRI is associated with at least one TRS resource subset.

[0381] Optionally, the first CSI includes first channel information measured based on a first TRS resource and second channel information measured based on a second TRS resource, and the target CSI field corresponding to the first CSI includes at least one of the following:

[0382] a first CSI field and a second CSI field, the first CSI field being used to map the first channel information, and the second CSI field being used to map the second channel information;

[0383] a third CSI field, where the third CSI field is used to jointly map the first channel information and the second channel information;

[0384] A fourth CSI field is used to map a difference between the first channel information and the second channel information, or an absolute value of a difference between the first channel information and the second channel information.

[0385] Optionally, the CSI reporting processing device 400 further includes:

[0386] The first receiving module is configured to receive first indication information sent by a network-side device, where the first indication information is used to indicate a CSI reporting mode; the CSI reporting mode includes at least one of a first reporting mode and a second reporting mode.

[0387] The first reporting method includes reporting a first object in one CSI report, where the first object includes the first CSI reporting information and N second CSI reporting information corresponding one-to-one to N single-transmitting / receiving point transmissions, where N is a positive integer; the second reporting method includes reporting a second object in one CSI report, where the second object is the CSI reporting information corresponding to the optimal transmission between the single-frequency network transmission and the N single-transmitting / receiving point transmissions.

[0388] Optionally, the radio frequency unit 701 is further used to: send second indication information to the network side device, where the second indication information is used to indicate whether the capability of the terminal supports the CSI reporting method.

[0389] Optionally, the priority of the CSI report satisfies at least one of the following:

[0390] The priority of the first CSI report is higher than the priority of the CSI report carrying the first CSI, where the first CSI report is a CSI report carrying a reference signal received power or a signal to interference plus noise ratio;

[0391] The priority of the CSI report carrying the first CSI is higher than the priority of the CSI report not carrying the first CSI;

[0392] The priority of the CSI report carrying the first CSI is higher than the priority of other CSI reports, and the other CSI reports include CSI reports other than the first CSI report in the CSI reports that do not carry the first CSI, and the first CSI report is a CSI report carrying the reference signal received power or the signal to interference plus noise ratio.

[0393] Optionally, the target CSI report satisfies at least one of the following:

[0394] The priority of the first CSI reporting information is higher than the priority of the second CSI reporting information, or the priority of the second CSI reporting information is higher than the priority of the first CSI reporting information;

[0395] The priority of aperiodic CSI reporting based on the physical uplink shared channel PUSCH report is higher than the priority of semi-persistent CSI reporting based on the PUSCH report;

[0396] The priority of the semi-persistent CSI report based on the PUSCH report is higher than the priority of the semi-persistent CSI report based on the physical uplink control channel PUCCH report;

[0397] The priority of the semi-persistent CSI report based on the PUCCH report is higher than the priority of the periodic CSI report based on the PUCCH report.

[0398] An embodiment of the present application also provides a network-side device, including a processor and a communication interface, the communication interface being configured to receive a target CSI report sent by a terminal; wherein the target CSI report includes first CSI reporting information corresponding to single-frequency network transmission, the first CSI reporting information including first CSI, and the first CSI including at least one of the following: Doppler frequency offset information, channel phase information, and channel delay information. This network-side device embodiment corresponds to the aforementioned network-side device method embodiment, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this network-side device embodiment and can achieve the same technical effects.

[0399] Specifically, the embodiment of the present application also provides a network side device. Figure 8 As shown, network-side device 800 includes an antenna 801, a radio frequency device 802, and a baseband device 803. Antenna 801 is connected to radio frequency device 802. In the uplink direction, radio frequency device 802 receives information via antenna 801 and sends the received information to baseband device 803 for processing. In the downlink direction, baseband device 803 processes the information to be transmitted and sends it to radio frequency device 802. Radio frequency device 802 processes the received information and then sends it through antenna 801.

[0400] The frequency band processing device may be located in the baseband device 803 . The method performed by the network-side device in the above embodiment may be implemented in the baseband device 803 . The baseband device 803 includes a processor 804 and a memory 805 .

[0401] The baseband device 803 may include, for example, at least one baseband board, on which a plurality of chips are arranged, such as Figure 8 As shown, one of the chips is, for example, a processor 804, which is connected to a memory 805 to call a program in the memory 805 and execute the network-side device operations shown in the above method embodiment.

[0402] The baseband device 803 may further include a network interface 806 for exchanging information with the radio frequency device 802 . The interface may be, for example, a common public radio interface (CPRI).

[0403] Specifically, the network side device of the embodiment of the present application further includes: instructions or programs stored in the memory 805 and executable on the processor 804, and the processor 804 calls the instructions or programs in the memory 805 to execute. Figure 5 The methods executed by the modules shown achieve the same technical effects, so they will not be described here to avoid repetition.

[0404] An embodiment of the present application further provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned CSI reporting processing method or CSI receiving method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here.

[0405] The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk.

[0406] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to run programs or instructions to implement the various processes of the above-mentioned CSI reporting processing method or CSI receiving method embodiment, and can achieve the same technical effects. To avoid repetition, they are not further described here.

[0407] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0408] An embodiment of the present application further provides a program product, which is stored in a non-volatile storage medium. The program product is executed by at least one processor to implement the various processes of the above-mentioned CSI reporting processing method or CSI receiving method embodiment, and can achieve the same technical effects. To avoid repetition, it is not repeated here.

[0409] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0410] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, air conditioner, or base station, etc.) to execute the methods described in each embodiment of the present application.

[0411] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A method for processing channel state information (CSI) reporting, characterized in that: The method comprises: The terminal determines the target CSI report; The terminal sends the target CSI report to the network side device; The method further comprises: The terminal receives first indication information sent by the network-side device, where the first indication information is used to determine a reporting mode of a target CSI report, where the reporting mode includes at least one of a first reporting mode and a second reporting mode; wherein the first reporting mode includes reporting a first object in the target CSI report, where the first object includes first CSI reporting information corresponding to single-frequency network transmission and N second CSI reporting information corresponding one-to-one to N single-transmission / reception point transmissions, where N is a positive integer; and the second reporting mode includes reporting a second object in the target CSI report, where the second object is first CSI reporting information or second CSI reporting information corresponding to optimal transmission between single-frequency network transmission and N single-transmission / reception point transmissions. The first CSI reporting information includes first CSI, and the first CSI includes at least one of the following: Doppler frequency offset information, channel phase information, and channel delay information.

2. The method according to claim 1, characterized in that The first CSI reporting information also includes a second CSI, and the second CSI includes at least one of the following: a channel state information reference signal resource indication CRI, a rank indication RI, a layer indication LI, a precoding matrix indication PMI and a channel quality indication CQI.

3. The method according to claim 2, characterized in that The terminal determines a target CSI report, including: The terminal determines the target CSI report according to the first CSI reporting amount in the CSI report configuration sent by the network side device; The first CSI reporting amount includes any one of the following: CRI, RI, LI, PMI, CQI and the first CSI; CRI, RI, PMI, CQI and the first CSI; CRI, RI, wideband PMI and the first CSI; CRI, RI, wideband PMI, CQI and the first CSI; CRI, RI, CQI and the first CSI.

4. The method according to claim 2, characterized in that The terminal sending the target CSI report to the network side device includes: Mapping, by the terminal, the first CSI reporting information to a corresponding CSI field in the uplink control information according to a preset mapping rule; The terminal sends the uplink control information.

5. The method according to claim 4, characterized in that The preset mapping rule includes at least one of the following: When the second CSI part does not exist in the target CSI report, mapping the CSI field corresponding to the first CSI reporting information according to the first mapping order; When the target CSI report contains the second part of CSI and the target CSI field corresponding to the first CSI is mapped to the first part of CSI, mapping the CSI field corresponding to the first CSI reporting information according to the second mapping order; When the target CSI report includes a second CSI part and the target CSI domain corresponding to the first CSI is mapped to the second CSI part, the CSI domain corresponding to the first CSI reporting information is mapped according to a third mapping order.

6. The method according to claim 5, characterized in that The first mapping order includes any one of the following: CRI field, RI field, LI field, target CSI field, 0-filled field, PMI wideband information field, wideband CQI field; CRI field, RI field, LI field, zero-filled field, target CSI field, PMI broadband information field, broadband CQI field; CRI field, RI field, LI field, 0-filling field, PMI broadband information field, broadband CQI field, target CSI field.

7. The method according to claim 5, characterized in that The second mapping order includes any one of the following: CRI domain, RI domain, target CSI domain, CQI domain, non-zero wideband amplitude coefficient domain; CRI domain, RI domain, CQI domain, target CSI domain, non-zero wideband amplitude coefficient domain; CRI domain, RI domain, CQI domain, non-zero wideband amplitude coefficient domain, target CSI domain.

8. The method according to claim 5, characterized in that The third mapping order includes any one of the following: Wideband CQI field, LI field, target CSI field, PMI wideband information field; Wideband CQI field, LI field, PMI wideband information field, target CSI field.

9. The method according to claim 4, characterized in that Mapping, by the terminal, the first CSI reporting information to a corresponding CSI field in the uplink control information according to a preset mapping rule, further comprising: When a first reporting opportunity corresponding to the first CSI is the same as a second reporting opportunity corresponding to the second CSI, the terminal maps target information to a corresponding CSI field in the uplink control information according to a preset mapping rule, the target information including the first CSI and the second CSI; When a first reporting timing corresponding to the first CSI is different from a second reporting timing corresponding to the second CSI, performing a first operation; The first operation includes: At the first reporting opportunity, mapping the first CSI to a corresponding CSI field in the uplink control information; In the second reporting opportunity, the first CSI mapping is not performed in the uplink control information; or information in the target CSI domain corresponding to the first CSI in the uplink control information is set to a preset value.

10. The method according to any one of claims 3 to 9, characterized in that The PMI in the target CSI report includes a first PMI and a second PMI; The first PMI is obtained based on measurement of a first non-zero power channel state information reference signal resource, and the second PMI is obtained based on measurement of a second non-zero power channel state information reference signal resource.

11. The method according to claim 1, wherein The first CSI reporting information also includes CRI.

12. The method according to claim 1, characterized in that The terminal determines a target CSI report, including: The terminal determines the target CSI report according to the second CSI reporting amount in the CSI report configuration sent by the network side device; The second CSI reporting amount includes any one of the following: CRI and the first CSI; The first CSI.

13. The method according to claim 12, characterized in that The CRI is associated with a tracking reference signal TRS resource, and the TRS resource is a measurement resource of the first CSI.

14. The method according to claim 13, characterized in that The manner in which the CRI is associated with the tracking reference signal TRS resource includes any one of the following: The CRI is associated with at least one TRS resource set; The CRI is associated with at least one TRS resource subset.

15. The method according to claim 1, wherein The first CSI includes first channel information measured based on a first TRS resource and second channel information measured based on a second TRS resource, and the target CSI field corresponding to the first CSI includes at least one of the following: a first CSI field and a second CSI field, the first CSI field being used to map the first channel information, and the second CSI field being used to map the second channel information; a third CSI field, where the third CSI field is used to jointly map the first channel information and the second channel information; A fourth CSI field is used to map a difference between the first channel information and the second channel information, or an absolute value of a difference between the first channel information and the second channel information.

16. The method according to claim 1, wherein Before the terminal receives the first indication information sent by the network side device, the method further includes: The terminal sends second indication information to the network side device, where the second indication information is used to indicate whether the capability of the terminal supports the CSI reporting method.

17. The method according to claim 1, wherein The priority of a CSI report meets at least one of the following requirements: The priority of the first CSI report is higher than the priority of the CSI report carrying the first CSI, where the first CSI report is a CSI report carrying a reference signal received power or a signal to interference plus noise ratio; The priority of the CSI report carrying the first CSI is higher than the priority of the CSI report not carrying the first CSI; The priority of the CSI report carrying the first CSI is higher than the priority of other CSI reports, and the other CSI reports include CSI reports other than the first CSI report in the CSI reports that do not carry the first CSI, and the first CSI report is a CSI report carrying the reference signal received power or the signal to interference plus noise ratio.

18. The method according to claim 1, wherein The target CSI report satisfies at least one of the following: The priority of the first CSI reporting information is higher than the priority of the second CSI reporting information, or the priority of the second CSI reporting information is higher than the priority of the first CSI reporting information; The priority of aperiodic CSI reporting based on the physical uplink shared channel PUSCH report is higher than the priority of semi-persistent CSI reporting based on the PUSCH report; The priority of the semi-persistent CSI report based on the PUSCH report is higher than the priority of the semi-persistent CSI report based on the physical uplink control channel PUCCH report; The priority of the semi-persistent CSI report based on the PUCCH report is higher than the priority of the periodic CSI report based on the PUCCH report.

19. A method for receiving channel state information (CSI), characterized in that: The method comprises: The network-side device receives the target CSI report sent by the terminal; The method further comprises: The network-side device sends first indication information to the terminal, where the first indication information is used to determine a reporting mode for a target CSI report, where the reporting mode includes at least one of a first reporting mode and a second reporting mode; wherein the first reporting mode includes reporting a first object in the target CSI report, where the first object includes first CSI reporting information corresponding to single-frequency network transmission and N second CSI reporting information corresponding one-to-one to N single-transmission / reception point transmissions, where N is a positive integer; and the second reporting mode includes reporting a second object in the target CSI report, where the second object is first CSI reporting information or second CSI reporting information corresponding to optimal transmission between single-frequency network transmission and N single-transmission / reception point transmissions. The target CSI report includes first CSI reporting information corresponding to single frequency network transmission, the first CSI reporting information includes first CSI, and the first CSI includes at least one of the following: Doppler frequency offset information, channel phase information, and channel delay information.

20. The method according to claim 19, characterized in that The first CSI reporting information also includes a second CSI, and the second CSI includes at least one of the following: a channel state information reference signal resource indication CRI, a rank indication RI, a layer indication LI, a precoding matrix indication PMI and a channel quality indication CQI.

21. The method according to claim 20, characterized in that Before the network-side device receives the target CSI report sent by the terminal, the method further includes: The network side device sends a CSI report configuration to the terminal; The CSI reporting configuration includes a first CSI reporting amount, where the first CSI reporting amount is used to determine the target CSI report, and the first CSI reporting amount includes any one of the following: CRI, RI, LI, PMI, CQI and the first CSI; CRI, RI, PMI, CQI and the first CSI; CRI, RI, wideband PMI and the first CSI; CRI, RI, wideband PMI, CQI and the first CSI; CRI, RI, CQI and the first CSI.

22. The method according to claim 21, characterized in that The PMI in the target CSI report includes a first PMI and a second PMI; The first PMI information is obtained based on measurement of a first non-zero power channel state information reference signal resource, and the second PMI information is obtained based on measurement of a second non-zero power channel state information reference signal resource.

23. The method according to claim 19, wherein The first CSI reporting information also includes CRI.

24. The method according to claim 19, wherein Before the network-side device receives the target CSI report sent by the terminal, the method further includes: The network side device sends a CSI report configuration to the terminal; The CSI reporting configuration includes a second CSI reporting amount, where the second CSI reporting amount is used to determine the target CSI report, and the second CSI reporting amount includes any one of the following: CRI and the first CSI; The first CSI.

25. The method according to claim 24, characterized in that The CRI is associated with a tracking reference signal TRS resource, and the TRS resource is a measurement resource of the first CSI.

26. The method according to claim 25, characterized in that The manner in which the CRI is associated with the tracking reference signal TRS resource includes any one of the following: The CRI is associated with at least one TRS resource set; The CRI is associated with at least one TRS resource subset.

27. The method according to claim 19, wherein The first CSI includes first channel information measured based on a first TRS resource and second channel information measured based on a second TRS resource, and the target CSI field corresponding to the first CSI includes at least one of the following: a first CSI field and a second CSI field, the first CSI field being used to map the first channel information, and the second CSI field being used to map the second channel information; a third CSI field, where the third CSI field is used to jointly map the first channel information and the second channel information; A fourth CSI field is used to map a difference between the first channel information and the second channel information, or an absolute value of a difference between the first channel information and the second channel information.

28. The method according to claim 19, wherein Before the network-side device sends the first indication information to the terminal, the method further includes: The network-side device receives second indication information sent by the terminal, where the second indication information is used to indicate whether the capability of the terminal supports the CSI reporting method.

29. The method according to claim 19, wherein The priority of a CSI report meets at least one of the following requirements: The priority of the first CSI report is higher than the priority of the CSI report carrying the first CSI, where the first CSI report is a CSI report carrying a reference signal received power or a signal to interference plus noise ratio; The priority of the CSI report carrying the first CSI is higher than the priority of the CSI report not carrying the first CSI; The priority of the CSI report carrying the first CSI is higher than the priority of other CSI reports, and the other CSI reports include CSI reports other than the first CSI report in the CSI reports that do not carry the first CSI.

30. The method according to claim 19, wherein The target CSI report satisfies at least one of the following: The priority of the first CSI reporting information is higher than the priority of the second CSI reporting information, or the priority of the second CSI reporting information is higher than the priority of the first CSI reporting information; The priority of aperiodic CSI reporting based on the physical uplink shared channel PUSCH report is higher than the priority of semi-persistent CSI reporting based on the PUSCH report; The priority of the semi-persistent CSI report based on the PUSCH report is higher than the priority of the semi-persistent CSI report based on the physical uplink control channel PUCCH report; The priority of the semi-persistent CSI report based on the PUCCH report is higher than the priority of the periodic CSI report based on the PUCCH report.

31. The method according to claim 19, wherein When a preset condition is met, the network-side device determines that the optimal transmission corresponding to the target CSI report is single frequency network transmission, where the preset condition includes at least one of the following: The target CSI report carries the first CSI; The CRI value in the CRI field of the target CSI report is associated with single frequency network transmission; The target CSI report includes a first transmission indication field, where the first transmission indication field indicates that the target CSI report corresponds to single frequency network transmission.

32. A channel state information (CSI) reporting processing device, characterized in that: The device comprises: A determination module, configured to determine a target CSI report; A first sending module, configured to send the target CSI report to a network-side device; The CSI reporting processing device further includes: a first receiving module, configured to receive first indication information sent by the network-side device, the first indication information being used to determine a reporting mode for a target CSI report, the reporting mode including at least one of a first reporting mode and a second reporting mode; wherein the first reporting mode includes reporting a first object in the target CSI report, the first object including first CSI reporting information corresponding to single-frequency network transmission and N second CSI reporting information corresponding one-to-one to N single-transmission / reception point transmissions, where N is a positive integer; and the second reporting mode includes reporting a second object in the target CSI report, the second object being first CSI reporting information or second CSI reporting information corresponding to optimal transmission between single-frequency network transmission and N single-transmission / reception point transmissions; The first CSI reporting information includes first CSI, and the first CSI includes at least one of the following: Doppler frequency offset information, channel phase information, and channel delay information.

33. A channel state information (CSI) receiving device, characterized in that: The device comprises: a first sending module, configured to send first indication information to a terminal, where the first indication information is used to determine a reporting mode for a target CSI report, where the reporting mode includes at least one of a first reporting mode and a second reporting mode; wherein the first reporting mode includes reporting a first object in the target CSI report, where the first object includes first CSI reporting information corresponding to single-frequency network transmission and N second CSI reporting information corresponding one-to-one to N single-transmission / reception point transmissions, where N is a positive integer; and the second reporting mode includes reporting a second object in the target CSI report, where the second object is first CSI reporting information or second CSI reporting information corresponding to optimal transmission between single-frequency network transmission and N single-transmission / reception point transmissions; A first receiving module, configured to receive a target CSI report sent by a terminal; The first CSI reporting information includes first CSI, and the first CSI includes at least one of the following: Doppler frequency offset information, channel phase information, and channel delay information.

34. A terminal, characterized in that: include: A memory, a processor, and a program stored in the memory and executable on the processor, wherein when the program is executed by the processor, the steps in the channel state information (CSI) reporting processing method according to any one of claims 1 to 18 are implemented.

35. A network side device, characterized in that: include: A memory, a processor, and a program or instruction stored on the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps in the channel state information CSI receiving method as described in any one of claims 19 to 31.

36. A readable storage medium, characterized in that The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the steps of the channel state information CSI reporting processing method as described in any one of claims 1 to 18 are implemented, or when the program or instruction is executed by the processor, the steps of the channel state information CSI receiving method as described in any one of claims 19 to 31 are implemented.

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