Channel state information reporting method, device and terminal

Abstract

The present application discloses a channel state information reporting method, apparatus, and terminal, which belong to the field of communications. The channel state information reporting method of an embodiment of the present application includes: the terminal performs CSI measurement according to the channel state information CSI report setting to obtain a CSI report, wherein the CSI report setting includes: a channel quality indication CQI table field; the terminal feeds back the CSI report via an uplink channel, and the CSI report includes: a target number of CQIs.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a method, device and terminal for reporting channel state information. Background Art

[0002] In the prior art, when a terminal transmits multiple service models, such as Ultra-Reliable and Low Latency Communications (URLLC) and Enhanced Mobile Broadband (EMBB), the two service models correspond to different Channel Quality Indicator (CQI) tables. If the two service models share the same Precoding Matrix Indicator (PMI), or the Report Quantity is set to 'CRI (CSI-RS Resource Indicator)-RI (Resource Indicator)-CQI', multiple Channel State Information (CSI) report settings are required to correspond to the two service models respectively and calculate CSI reports separately. Moreover, the CSI reports need to be reported through multiple channel resources, resulting in a certain waste of calculation, configuration, and feedback resources. Summary of the Invention

[0003] The embodiments of the present application provide a channel state information reporting method, apparatus, and terminal, which can solve the problem of resource waste caused by existing methods of reporting CSI reports.

[0004] In a first aspect, a channel state information reporting method is provided, the method comprising:

[0005] The terminal performs CSI measurement according to the channel state information CSI report setting and obtains a CSI report, wherein the CSI report setting includes: a channel quality indication CQI table field;

[0006] The terminal feeds back the CSI report via an uplink channel, where the CSI report includes a target number of CQIs.

[0007] In a second aspect, a channel state information reporting device is provided, including:

[0008] A measurement module is configured to perform CSI measurement according to a channel state information (CSI) report setting to obtain a CSI report, wherein the CSI report setting includes: a channel quality indication (CQI) table field;

[0009] The feedback module is configured to feed back the CSI report via an uplink channel, where the CSI report includes a target number of CQIs.

[0010] In a third aspect, a terminal is provided, comprising 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.

[0011] In a fourth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor is used to perform CSI measurement according to a channel state information CSI report setting to obtain a CSI report, and the CSI report setting includes: a channel quality indication CQI table field; the communication interface is used to feed back the CSI report through an uplink channel, and the CSI report includes: a target number of CQIs.

[0012] In a fifth 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.

[0013] In a sixth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to run a program or instruction to implement the method described in the first aspect.

[0014] In the seventh aspect, a computer program / program product is provided, which is stored in a non-volatile storage medium, and the program / program product is executed by at least one processor to implement the steps of the channel state information reporting method as described in the first aspect.

[0015] In an embodiment of the present application, the terminal performs CSI measurement according to the CSI report setting and obtains a CSI report. It is possible to use one CSI report setting to generate one CSI report to obtain two or more types of CQI information, which can reduce the overhead of CSI calculation, configuration, and feedback resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0017] Figure 2 Schematic diagram of the process of reporting channel state information provided by an embodiment of the present application;

[0018] Figure 3 This is a structural diagram of a channel state information reporting device provided in an embodiment of the present application;

[0019] Figure 4 is a structural diagram of a communication device provided in an embodiment of the present application;

[0020] Figure 5 It is a schematic diagram of the structure of the terminal provided in an embodiment of the present application. DETAILED DESCRIPTION

[0021] 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.

[0022] 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.

[0023] 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 technology described 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 illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to applications other than NR system applications, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0024] 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, 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.

[0025] When describing the embodiments of the present application, some concepts used in the following description are first explained.

[0026] 1. CSI framework of single TRP.

[0027] CSI reporting can be configured as:

[0028] (1) Periodic CSI (P-CSI): Transmitted only on the Physical Uplink Control Channel (PUCCH).

[0029] (2) Semi-Persistent CSI (SP-CSI): Transmitted on the PUCCH or Physical Uplink Shared Channel (PUSCH). PUSCH-based SP-CSI reporting is activated and deactivated by the CSI Request field in the Downlink Control Information (DCI) signaling. The Radio Resource Control (RRC) configures a maximum of 64 trigger states (TriggerStat), each of which corresponds to a CSI Report Setting. When used for CSI acquisition, the resource setting associated with each CSI Report Setting contains only one CSI Reference Signal (CSI-RS) resource set.

[0030] (3) Aperiodic CSI (AP-CSI): Transmitted only on PUSCH. PUSCH-based A-CSI reporting is activated by DCI signaling. RRC configures multiple trigger states, each of which corresponds to one or more CSI reporting feedback settings. The CSI request field (CSI Request) in the DCI triggers a Trigger Stat. The CSI request field in DCI format 0_1 ​​is configured to a maximum of 6 bits, thus supporting a maximum of 64 CSI trigger states. When the number of CSI trigger states configured by RRC is greater than 64, the 64 trigger states are mapped to the CSI request field by the Medium Access Control (MAC CE) signaling. Each CSI trigger state can be associated with 1 to 3 resource settings. If a resource setting contains multiple resource sets, only one resource set is selected. The quasi-co-location (QCL) information of the CSI-RS resources in this resource set is configured for each resource by the Transmission Configuration Indicator (TCI) state.

[0031] The CSI resource configuration is as follows:

[0032] M ≥ 1 resource configurations;

[0033] A resource configuration contains S ≥ 1 CSI-RS resource sets.

[0034] A resource set contains Ks ≥ 1 RS resources, such as CSI-RS / CSI-IM (CSI Intereference Measurement, CSI interference measurement) resources;

[0035] A CSI-RS resource is used to configure the number of CSI-RS ports and time-frequency position information;

[0036] A CSI-IM resource is used to configure information such as the time-frequency position of the CSI-IM.

[0037] 2. CSI measurement resources

[0038] (1) Measurement resources are as follows:

[0039] Interference measurement based on CSI-IM;

[0040] Interference measurement and channel measurement based on non-zero power CSI-RS (Non-Zero Power CSI-RS, NZP CSI-RS).

[0041] (2) Cycle and slot offset.

[0042] Periodic and semi-persistent CSI-RS, whose period and slot offset are configured by RRC signaling;

[0043] Semi-persistent NZP CSI-RS / CSI-IM uses MAC CE for activation and deactivation;

[0044] Aperiodic CSI-RS is triggered by DCI, and the slot offset candidate values ​​of CSI-RS are independently configured by RRC signaling for each resource set (Resource Set) in the measurement resource setting, and DCI signaling indicates one of the candidate values ​​as the CSI-RS transmission time.

[0045] (3) SP-CSI reporting:

[0046] Channel measurement can be performed using periodic or semi-persistent CSI-RS, and interference measurement can be performed using periodic or semi-persistent CSI-IM. Interference measurement using NZP CSI-RS is not supported.

[0047] (4) A-CSI reporting:

[0048] Channel measurement can be performed using periodic, semi-persistent, or aperiodic CSI-RS, and interference measurement can be performed using periodic, semi-persistent, or aperiodic CSI-IM. Interference measurement can also be performed using NZP CSI-RS.

[0049] 3. PUSCH-based CSI reporting mechanism.

[0050] CSI reporting based on PUSCH supports Type 1 wideband or subband CSI, and also supports Type 2 CSI.

[0051] For Type 1, Type 2, and enhanced Type 2 CSI based on PUSCH feedback, a CSI report consists of two parts (Part 1 and Part 2). Part 1 has a fixed payload size and indicates the number of information bits in Part 2. It should be noted that Part 1 must be transmitted in its entirety before Part 2.

[0052] For Type 1 CSI feedback, Part 1 may include one or more of a resource indicator (RI), a CSI-RS resource indicator (CRI), and a CQI of the first codeword; Part 2 may include one or more of a PMI and a CQI of the second codeword;

[0053] For Type 2 CSI feedback, Part 1 includes one or more of the RI, CQI, and non-zero wideband amplitude coefficient indication for each layer of Type 2 CSI, and Part 2 includes the PMI of Type 2 CSI.

[0054] For enhanced Type 2 CSI feedback, Part 1 includes RI, CQI, and an indication of the total number of non-zero amplitude coefficients of enhanced Type 2 CSI across layers, and Type 2 includes the PMI of the enhanced Type 2 CSI.

[0055] When the CSI reported based on the PUSCH includes Part 1 and Part 2, the UE can delete part of the Part 2 CSI content. The deletion rules of Part 2 are in descending order of priority.

[0056] For enhanced Type 2 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 , high priority part i 2,5,l (l=1,…,v); Group2 includes the low priority part i 1,7,l, low priority part i 2,4,l , low priority part i 2,5,l (l=1,…,v). The meaning of each parameter is shown in the following table.

[0057]

[0058] 4. PUCCH-based CSI reporting mechanism

[0059] Periodic CSI reporting based on PUCCH formats 2, 3, and 4 supports wideband Type 1 CSI;

[0060] PUCCH-based semi-persistent CSI reporting supports Type 1 CSI;

[0061] Semi-persistent CSI reporting based on PUCCH format 2 supports wideband Type 1 CSI;

[0062] Semi-persistent CSI reporting based on PUCCH format 3 or 4 supports wideband and subband Type 1 CSI and Type 2 CSI Part 1;

[0063] For subband Type 1 CSI reported based on PUCCH format 3 or 4, 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. Part 2 includes PMI and CQI corresponding to the second codeword (when RI>4, there are two codewords).

[0064] If a CSI report contains two parts, the UE can delete some of the Part2 CSI content, and the priority order is consistent with the priority table based on PUSCH reporting.

[0065] 5. CSI reporting priority.

[0066] The priority of CSI reports is defined as:

[0067] Pri i (y,k,c,s)=2·N cells ·M s y+N cells ·M s k+M s c+s

[0068] Wherein, y=0 indicates aperiodic CSI reporting based on PUSCH reporting, y=1 indicates semi-persistent CSI reporting based on PUSCH reporting, y=2 indicates semi-persistent CSI reporting based on PUCCH reporting, y=3 indicates periodic CSI reporting based on PUCCH reporting, k=0 indicates a report carrying Layer 1 Reference Signal Received Power (L1-RSRP) or Layer 1 Signal to Interference plus Noise Ratio (L1-SINR), k=1 indicates a report not carrying L1-RSRP or L1-SINR, c indicates a serving cell index (cellindex), N cells Indicates the value of the high-level parameter maxNrofServingCells (i.e., the maximum number of service cells), s indicates reportConfigID (i.e., report configuration ID), M s Indicates the value of the high-level parameter maxNrofCSI-ReportConfigurations (i.e., the maximum number of CSI report configurations).

[0069] 6. Contents of CSI report.

[0070] The UE may use the CSI-Report Config configuration to set the higher layer parameter report quantity (report Quantity) to 'none', 'cri-ri-pmi-cqi', 'cri-RI-i1', 'cri-RI-CQI', 'cri-RSRP', 'cri-SINR', 'ssb-Index-RSRP', 'ssb-Index-SINR' or 'cri-RI-LI-PMI-CQI'.

[0071] If the terminal is configured with CSI-Report Config and the upper-layer parameter report Quantity is set to "none", the terminal will not report anything for CSI-Report Config.

[0072] If the terminal is configured with CSI-Report Config and the upper layer parameter report Quantity is set to 'cri-RI-PMI-CQI' or 'cri-RI-LI-PMI-CQI', the terminal shall report one precoding matrix for the entire reporting band or one precoding matrix per subband.

[0073] If the terminal is configured with CSI-Report Config and the upper layer parameter report Quantity is set to 'cri-RI-i1-CQI', the UE shall report a PMI including a single wideband indication for the entire CSI reporting band.

[0074] 7. CQI.

[0075] There can be three CQI tables: two for Quadrature Phase Shift Keying (QPSK), 16-QAM, and 64-QAM, and one for QPSK, 16-QAM, 64-QAM, and 256-QAM. The UE can determine which CQI table to use to report the corresponding CQI index based on the parameter CQI Table field in the higher-layer signaling CSI reportConfig.

[0076] The channel state information reporting method provided in the embodiment of the present application is described in detail below with reference to some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0077] like Figure 2 As shown, the channel state information reporting method provided by this application includes:

[0078] Step 201: The terminal performs CSI measurement according to the channel state information CSI report setting to obtain a CSI report. The CSI report setting includes: a channel quality indication CQI table field.

[0079] Step 202: The terminal feeds back the CSI report via an uplink channel, where the CSI report includes a target number of CQIs.

[0080] The CQI table field may indicate multiple CQI tables. The CSI report configuration may also be used to indicate information such as the content to be measured by the terminal, the number of CQIs to be measured, the CQI table corresponding to each CQI, and the resource location for feedback of measurement results.

[0081] The CSI reporting setting may be configured for a network-side device, and a terminal may use the CSI reporting setting to obtain a CQI table corresponding to one or more CQIs. Different CQIs may correspond to different CQI tables; alternatively, different CQIs may correspond to the same CQI table. This embodiment of the present application is described using an example where different CQIs correspond to different CQI tables.

[0082] The terminal performs CSI measurement according to the CSI reporting configuration, obtains measurement results, and forms a CSI report. The CSI report is fed back via an uplink channel. The measurement results include a calculated target number of CQIs. The target number may be a value greater than or equal to 1. Optionally, the target number is greater than or equal to two.

[0083] In an embodiment of the present application, the terminal performs CSI measurement according to the CSI report setting and obtains a CSI report. It is possible to use one CSI report setting to generate one CSI report to obtain two or more types of CQI information, which can reduce the overhead of CSI calculation, configuration, and feedback resources.

[0084] As an optional embodiment, the method further includes:

[0085] obtaining the target quantity;

[0086] Specifically, the method of obtaining the target quantity may include at least one of the following:

[0087] Method 1: The CSI report setting includes the target quantity.

[0088] In the first approach, the number of CQIs that the terminal needs to report is indicated in the CSI reporting setting, that is, the CSI reporting setting includes the target number of CQIs that the terminal needs to obtain according to the CSI reporting setting and the CQI table corresponding to each CQI.

[0089] Method 2: Obtain the target quantity according to the CQI table field.

[0090] In the second approach, the CSI report setting includes a CQI table field, and the CQI table field includes CQItable. The terminal can determine the corresponding CQI according to the CQI table, and further determine the target number of CQIs.

[0091] In this embodiment, the target number of CQIs can be explicitly indicated or implicitly indicated. The explicit indication, for example, in method 1, configures the target number of CQIs to be reported in the CSI report settings; the implicit indication, for example, in method 2, determines the target number of CQIs to be reported via the CQI table field. Optionally, the CQI table field can be extended to support configuration of multiple CQI table types.

[0092] Specifically, obtaining the target quantity according to the CQI table field may include one of the following:

[0093] (1) Acquire the target number according to the CQI table type corresponding to the bitmap of the first bit length in the CQI table field, wherein each bit corresponds to a CQI table type.

[0094] The CQI table type is indicated by a bitmap, for example, a 3-bit bitmap, where each bit corresponds to a CQI table. If the bit corresponding to a CQI table is 1, the CSI report setting may need to calculate and feedback the CQI based on the CQI table. If there are two CQI tables whose corresponding bits are 1, two CQIs need to be reported.

[0095] (2) Obtain the target quantity according to the CQI table type corresponding to the codepoint in the CQI table field.

[0096] The code point is configured by the network side device through high-level parameters. Optionally, the CQI table type corresponding to different code points can be configured. When the network side device configures the CSI report setting for the terminal, it indicates in the CQI table field which code point the terminal needs to feedback the CQI based on. For example: 3 bits are used to indicate 8 code points, where codepoint-000 / 001 / 010 / 011 / 100 / 101 / 110 / 111 correspond to table1 / table2 / table3 / table1 and table2 / table1 andtable3 / table2 and table3 / table1 and table2 and table3 / reserved respectively. If the code point configured in the CQI table field in the current CSI report setting is 011, it means that the CSI report setting may need to calculate and feedback two CQIs based on CQI table1 and CQI table2 (011 corresponds to table1 and table2).

[0097] Method three: Obtain the target number according to the instruction of the network side device.

[0098] Optionally, the method of obtaining the target quantity according to the instruction of the network-side device includes one of the following:

[0099] Obtaining the target number according to the CQI table type indicated by the higher layer signaling;

[0100] The target number is obtained according to the CQI table type indicated by the control unit MAC CE of the media access control.

[0101] In the third method, the network side device can indicate the target number of CQIs to be reported through high-layer signaling or MAC CE. Optionally, in the case where the CSI report includes the number of CQIs, the number of CQIs in the existing CSI reporting setting can be modified according to the indication of the high-layer signaling or MAC CE. For example: the network side device activates CSI reporting setting 1 (CSIreporting setting1) to perform periodic CSI measurements, and the CQI table field of the CSI reporting setting is indicated as table1. If during the measurement process, the terminal receives two CQIs, CQI table1 and table2, from the MAC CE sent by the network side device indicating CSI reportingsetting1, the terminal needs to report two CQIs at the most recent reporting moment after the MAC CE takes effect, corresponding to CQI table1 and CQI table2 respectively.

[0102] It should be noted that the network side device may explicitly indicate the target number of CQIs through higher layer signaling or MAC CE, and may also implicitly indicate it through other related signaling.

[0103] As an optional embodiment, performing CSI measurement according to the channel state information CSI reporting setting and obtaining the CSI report may include:

[0104] Determine the number of CSI processing units (CPUs) occupied by obtaining the CSI report; and perform CSI measurement by the CPU according to the CSI report setting to obtain the CSI report.

[0105] Specifically, determining the number of CPUs of the CSI processing unit occupied by obtaining the CSI report may include one of the following methods:

[0106] (1) Determine the number of CPUs occupied by obtaining the CSI report based on the number of valid channel measurement resources included in the CSI report configuration.

[0107] The terminal calculates the CPU occupancy number based on the number of valid channel measurement resources configured in the CSI report. For example, if there are three channel measurement resources, 3 CPUs are occupied. The valid number of channel measurement resources refers to the number of channel measurement resources actually measured, which may be the same as or different from the configured number of channel measurement resources.

[0108] (2) Determine the number of CPUs occupied by obtaining the CSI report based on the number of channel measurement resources included in the CSI report configuration and the target number of CQIs.

[0109] The terminal calculates the CPU usage based on the number of channel measurement resources configured for the CSI report and the target number of CQIs. For example, if there are three channel measurement resources measuring two CQIs, 3+1 CPUs can be occupied (when one CQI needs to be reported, 3 CPUs need to be occupied, and when two CPUs need to be reported, 1 CPU needs to be added) or 2*3 CPUs (when one CQI needs to be reported, 3 CPUs need to be occupied, and when two CPUs need to be reported, 6 CPUs are occupied).

[0110] Optionally, performing CSI measurement by the CPU according to the CSI report setting to obtain a CSI report includes: performing CSI measurement by the CPU according to the CSI report setting to obtain a target number of CQIs and CQI-related information, and obtaining a CSI report based on measurement assumptions.

[0111] The CQI-related information may include at least one of the following:

[0112] The precoding matrix corresponding to the CQI indicates the PMI;

[0113] Resource indicator RI corresponding to CQI;

[0114] The CSI-RS resource indicator CRI corresponding to the CQI;

[0115] Layer Indicator (LI) corresponding to CQI.

[0116] In this embodiment, the terminal calculates CQI-related information based on the calculated number of CPUs and uses relevant information about CSI report settings, that is, performs CSI measurement. Calculation of CQI-related information can be based on measurement assumptions.

[0117] Specifically, the measurement hypothesis may include one of the following:

[0118] 1) If the target number of CQIs corresponds to different CQI tables, the CQI-related information corresponding to the different CQIs is all the same.

[0119] If the target number of CQIs corresponds to different CQI tables, the terminal may assume that all CQIs correspond to the same PMI, RI, CRI, LI, and other information, i.e., only the CQIs differ. For example, if the target number is 2 and the CQI-related information includes PMI, RI, CRI, and LI, i.e., the terminal needs to report two CQIs, the terminal may assume that all other information corresponding to the two CQIs is the same, and then report two CQIs along with one PMI, one RI, one CRI, and one LI in the CSI report.

[0120] 2) If the target number of CQIs corresponds to different CQI tables, the PMI and RI in the CQI-related information corresponding to the different CQIs are different, and other CQI-related information except the PMI and RI is the same.

[0121] If the target number of CQIs corresponds to different CQI tables, the terminal may assume that all CQIs correspond to the same CRI, LI, and other information, that is, only the PMI, RI, and CQI are different. For example: if the target number is 2, and the CQI-related information includes PMI, RI, CRI, and LI, that is, the terminal needs to report two CQIs, the terminal may assume that the two CQIs correspond to different PMIs and RIs, and that all other CQI-related information corresponding to the two CQIs except PMI and RI is the same, then two CQIs, two PMIs (corresponding to the two CQIs respectively), two RIs (corresponding to the two CQIs respectively), one CRI, and one LI are reported in the CSI report.

[0122] 3) If the target number of CQIs corresponds to different CQI tables, the RIs in the CQI-related information corresponding to the different CQIs are different, and other CQI-related information except the RIs corresponding to the different CQIs are the same.

[0123] If the target number of CQIs corresponds to different CQI tables, the terminal may assume that all CQIs correspond to the same PMI, CRI, LI, and other information, that is, only the RI and CQI are different. It may be assumed that the first RI corresponds to the first CQI, the second RI corresponds to the second CQI, and the first RI is greater than the second RI. In this case, the first PMI corresponds to the first RI, and the PMI corresponding to the second RI is the first two RI columns of the first PMI. For example, if the target number is 2, and the CQI-related information includes PMI, RI, CRI, and LI, two CQIs, two RIs, one PMI, one CRI, and one LI are reported in the CSI report.

[0124] 4) If the target number of CQIs corresponds to different CQI tables, the PMIs in the CQI-related information corresponding to the different CQIs are different, and other CQI-related information except the PMIs corresponding to the different CQIs are the same.

[0125] If the target number of CQIs corresponds to different CQI tables, the terminal may assume that all CQIs correspond to the same RI, CRI, LI, and other information, i.e., only the PMI and CQI differ. For example, if the target number is 2 and the CQI-related information includes PMI, RI, CRI, and LI, the CSI report includes: two CQIs, two PMIs, one RI, one CRI, and one LI.

[0126] Optionally, when the terminal obtains the CSI report according to the measurement hypothesis, the measurement hypothesis is determined by the terminal according to a first rule; wherein the first rule may include one of the following:

[0127] a) Determining the measurement hypothesis according to predefined rules.

[0128] The predefined rule may be determined by negotiation between the terminal and the network side device. The terminal makes different assumptions based on the default predefined rule, for example, the terminal assumes by default that all CQIs correspond to the same PMI, RI, CRI, LI and other information, that is, only the CQI is different.

[0129] b) determining the measurement hypothesis according to an instruction of a higher layer signaling.

[0130] The terminal can make different assumptions based on high-level signaling instructions; for example, the network measurement device can assume through high-level signaling that all CQIs correspond to the same PMI, RI, CRI, LI and other information, that is, only the CQI is different. In this case, the terminal only needs to calculate one PMI, one RI, one CRI, one LI, and two CQIs. The SINRs of the two CQIs before CQI table mapping can be the same, and only the CQI values ​​after CQI table mapping are different.

[0131] c) Customize the measurement hypothesis based on the CSI measurement result.

[0132] Optionally, when the terminal customizes the measurement hypothesis according to the CSI measurement result, the method further includes: the terminal sending the measurement hypothesis to a network-side device.

[0133] The terminal can notify the network measuring device of which measurement assumption the CQI fed back is based on based on the measurement results; for example: after obtaining the measurement results, the terminal finds that the calculated first PMI, first RI, first CRI, first LI, first CQI, and the second PMI, second RI, second CRI, second LI, and second CQI meet measurement assumption 1 (only the CQI is different), then the terminal feeds back the satisfied measurement assumption to the network measuring device, and feeds back the first PMI, first RI, first CRI, first LI or the second PMI, second RI, second CRI, second LI, as well as the first CQI and the second CQI.

[0134] The terminal performs CSI measurement according to the CSI report setting, and after obtaining the CSI report, feeds back the CSI report to the network side device. Optionally, feeding back the CSI report via an uplink channel includes: mapping the CQI information in the CSI report to UCI; and feeding back the UCI via an uplink channel.

[0135] As an optional embodiment, the mapping manner of mapping the CQI information in the CSI report to the UCI includes one of the following:

[0136] 1) When the CSI report includes one part, the target number of CQIs are mapped respectively, wherein the target number of CQIs are mapped according to a predetermined order of CQI table numbers.

[0137] When the CSI report corresponding to the CSI report setting contains only one Part, the terminal will map the CQIs corresponding to multiple CQItables separately. The predetermined order can be from large to small or from small to large, that is, the mapping order of the target number of CQIs is from large to small or from small to large according to the CQI table number. For example: if the terminal needs to report two CQIs: CQI1 and CQI2, CQI1 corresponds to CQI table1, and CQI2 corresponds to CQI table2, CQI2 can be mapped first and then CQI1 in order from large to small.

[0138] 2) When the PMI granularity of the CSI report is wideband, mapping the target number of CQIs respectively, wherein the target number of CQIs is mapped according to a predetermined order of CQI table numbers.

[0139] When the PMI granularity of the CSI report corresponding to the CSI report setting is broadband, the terminal maps the CQIs corresponding to multiple CQItables respectively, and the predetermined order can be from large to small or from small to large, that is, the mapping order of the target number of CQIs is from large to small or from small to large according to the CQI table number.

[0140] 3) When the CSI report contains two parts, the first CQI corresponding to the first-numbered CQI table is mapped to the first part (Part 1), and the remaining CQIs except the first CQI are mapped to the second part (Part 2) according to the predetermined order of the CQI table numbers; the first number is the CQI table number with the largest numerical value or the CQI table number with the smallest numerical value.

[0141] The predetermined order may be from large to small or from small to large. When the CSI report corresponding to the CSI report setting includes two parts (Part 1 and Part 2), Part 1 contains the CQI with the largest or smallest CQI table number, and the remaining CQIs are mapped to Part 2 in the order of CQI table numbers from large to small or from small to large.

[0142] 4) When the PMI granularity of the CSI report is subband, the second CQI corresponding to the second-numbered CQI table is mapped to the first part, and the remaining CQIs except the second CQI are mapped to the second part according to the predetermined order of the CQI table number; wherein the second number is the CQI table number with the largest value or the CQI table number with the smallest value.

[0143] The predetermined order may be from large to small or from small to large. When the PMI granularity of the CSI report corresponding to the CSI report setting is subband, Part 1 contains the CQI with the largest or smallest CQI table number, and the remaining CQIs are mapped to Part 2 in the order of CQI table numbers from large to small or from small to large.

[0144] As an optional embodiment, the method also includes: when the terminal includes at least two CSI reports, obtaining the priority of the CSI report; mapping the CQI information in the CSI report to the UCI may include: mapping the CQI information in each CSI report to the UCI according to the priority of the CSI report.

[0145] In this embodiment, when a terminal needs to report multiple CSI reports on the same channel resource, it is necessary to determine the priority of the CSI reports and map the multiple CSI reports in order of priority. Optionally, the more CQIs and corresponding CQI table types a CSI report contains, the higher the priority of the CSI report. Alternatively, the more CQIs and corresponding CQI table types a CSI report contains, the lower the priority of the CSI report.

[0146] The implementation process of the channel state information reporting method is described below through specific embodiments.

[0147] The network-side device activates a CSI report setting, in which a reference signal for channel measurement is configured. The CQI table field in the CSI report setting is a 3-bit bitmap, where each bit corresponds to a CQI table. If the bits corresponding to table1 and table3 are 1, the user needs to feedback 2 CQIs, corresponding to table1 and table3 respectively.

[0148] By default, the terminal assumes that all CQIs correspond to the same PMI, RI, CRI, LI, and other information, that is, only the CQI is different. Therefore, the terminal determines that the number of CPUs required to calculate the CSI report is 1;

[0149] After the terminal obtains the corresponding CSI report 1 according to the CSI report setting, it performs UCI mapping on the corresponding reporting resource. When there is another CSI report 2 (containing one CQI) to be reported on the corresponding reporting resource, if the two CSI reports have the same reporting attributes (such as reporting time domain characteristics, cell ID, etc.) except for the number of CQIs, the terminal determines the priority of the two CSI reports based on the number of CQIs: CSI report 1 has a higher priority than CSI report 2. Then, when generating the corresponding UCI, CSI report 1 is mapped first.

[0150] If both CSI report 1 and CSI report 2 contain two parts, first map Part 1 of CSI report 1 and then Part 1 of CSI report 2. Then map the broadband part of Part 2 of CSI report 1 and the broadband part of Part 2 of CSI report 2. Then map the subband part of Part 2 of CSI report 1, and finally map the subband part of Part 2 of CSI report 2.

[0151] In this embodiment, the network-side device indicates the number of CQIs calculated by the CSI report setting and the corresponding CQI table type through high-layer signaling; the terminal can assume by default that all CQIs correspond to the same PMI, RI, CRI, LI and other information, that is, only the CQI is different, and at this time the terminal can calculate the CPU occupancy amount based on the number of valid channel measurement resources configured for the CSI report, that is, the CPU occupancy amount may be unrelated to the CQI number. When multiple CSI reports are included, the priority of multiple CSI reports is based on the number of CQIs included. The more CQIs included, the higher the corresponding CSI report priority.

[0152] When the CSI report corresponding to the CSI report setting contains only 2 Parts (Part1 and Part2) or the PMI granularity is subband, Part1 contains the CQI with the largest or smallest CQI table number, and the remaining CQIs can be mapped to Part2 in the order of CQI table numbers from large to small or from small to large.

[0153] The embodiments of the present application can solve the problem of CSI acquisition in multiple service models (for example, URLLC and EMBB services). The terminal performs CSI measurements and obtains CSI reports based on the CSI reporting settings. This can generate a CSI report using a single CSI reporting setting to obtain two or more types of CQI information, thereby reducing the overhead of CSI calculation, configuration, and feedback resources.

[0154] It should be noted that the channel state information reporting method provided in the embodiments of the present application can be executed by a channel state information reporting device, or a control module in the channel state information reporting device for executing the channel state information reporting method. In the embodiments of the present application, the channel state information reporting device provided in the embodiments of the present application is described by taking the channel state information reporting device executing the channel state information reporting method as an example.

[0155] like Figure 3 As shown, the embodiment of the present application further provides a channel state information reporting device 300, including:

[0156] The measurement module 310 is configured to perform CSI measurement according to a channel state information (CSI) report setting to obtain a CSI report, wherein the CSI report setting includes: a channel quality indicator (CQI) table field;

[0157] The feedback module 320 is configured to feed back the CSI report via an uplink channel, where the CSI report includes a target number of CQIs.

[0158] Optionally, the target number is greater than or equal to two.

[0159] Optionally, the device further comprises:

[0160] A first acquisition module is used to obtain the target quantity;

[0161] Methods for obtaining the target quantity include at least one of the following:

[0162] The CSI reporting setting includes the target quantity;

[0163] Obtaining the target quantity according to the CQI table field;

[0164] According to the instruction of the network side device, the target quantity is obtained.

[0165] Optionally, the first acquisition module acquires the target quantity according to the CQI table field, including:

[0166] Obtaining the target number according to a CQI table type corresponding to a bitmap of a first bit length in the CQI table field, wherein each bit corresponds to a CQI table type;

[0167] or

[0168] The target quantity is acquired according to the CQI table type corresponding to the code point in the CQI table field.

[0169] Optionally, the measurement module includes:

[0170] a determining unit, configured to determine the number of CSI processing unit CPUs occupied by obtaining the CSI report;

[0171] A measuring unit is configured to perform CSI measurement through the CPU according to the CSI report setting to obtain a CSI report.

[0172] Optionally, the determining unit is specifically configured to:

[0173] Determining, based on the number of valid channel measurement resources included in the CSI report configuration, the number of CPUs occupied by obtaining the CSI report;

[0174] or

[0175] The number of CPUs occupied by obtaining the CSI report is determined according to the number of channel measurement resources included in the CSI report configuration and the target number of CQIs.

[0176] Optionally, the measuring unit is specifically configured to:

[0177] According to the CSI report setting, the CPU performs CSI measurement to obtain a target number of CQIs and CQI-related information, and obtains a CSI report based on a measurement hypothesis.

[0178] Optionally, the CQI-related information includes at least one of the following:

[0179] The precoding matrix corresponding to the CQI indicates the PMI;

[0180] Resource indicator RI corresponding to CQI;

[0181] The CSI-RS resource indicator CRI corresponding to the CQI;

[0182] The layer corresponding to the CQI indicates LI.

[0183] Optionally, the measurement hypothesis includes one of the following:

[0184] If the target number of CQIs corresponds to different CQI tables, the CQI-related information corresponding to the different CQIs is all the same;

[0185] If the target number of CQIs corresponds to different CQI tables, respectively, the PMI and RI in the CQI-related information corresponding to the different CQIs are different, and other CQI-related information except the PMI and RI corresponding to the different CQIs are the same;

[0186] If the target number of CQIs corresponds to different CQI tables, the RIs in the CQI-related information corresponding to the different CQIs are different, and other CQI-related information except the RIs corresponding to the different CQIs are the same;

[0187] If the target number of CQIs corresponds to different CQI tables, respectively, the PMIs in the CQI-related information corresponding to the different CQIs are different, and other CQI-related information except the PMIs corresponding to the different CQIs are the same.

[0188] Optionally, the measurement hypothesis is determined by the terminal according to a first rule;

[0189] The first rule includes one of the following:

[0190] determining the measurement hypothesis according to predefined rules;

[0191] Determining the measurement hypothesis according to an instruction of a higher layer signaling;

[0192] The measurement hypothesis is customized according to the CSI measurement result.

[0193] Optionally, the terminal further includes:

[0194] The sending module is used to send the measurement hypothesis to the network side device.

[0195] Optionally, the feedback module includes:

[0196] a mapping unit, configured to map the CQI information in the CSI report to UCI;

[0197] The feedback unit is configured to feed back the UCI via an uplink channel.

[0198] Optionally, the device further comprises:

[0199] A second acquisition module is configured to acquire the priority of the CSI report when the terminal includes at least two CSI reports;

[0200] The mapping unit is specifically configured to map the CQI information in each CSI report to the UCI according to the priority of the CSI report.

[0201] Optionally, the more CQI numbers and corresponding CQI table types included in the CSI report, the higher the priority of the CSI report.

[0202] Optionally, the mapping manner of mapping the CQI information in the CSI report to the UCI includes one of the following:

[0203] When the CSI report includes one part, mapping the target number of CQIs respectively, wherein the target number of CQIs is mapped according to a predetermined order of CQI table numbers;

[0204] When the PMI granularity of the CSI report is wideband, mapping the target number of CQIs respectively, wherein the target number of CQIs is mapped according to a predetermined order of CQI table numbers;

[0205] When the CSI report includes two parts, the first CQI corresponding to the first-numbered CQI table is mapped to the first part, and the remaining CQIs except the first CQI are mapped to the second part according to a predetermined order of CQI table numbers; the first number is the CQI table number with the largest value or the CQI table number with the smallest value;

[0206] When the PMI granularity of the CSI report is subband, the second CQI corresponding to the second-numbered CQI table is mapped to the first part, and the remaining CQIs except the second CQI are mapped to the second part according to the predetermined order of the CQI table numbers; wherein the second number is the CQI table number with the largest numerical value or the CQI table number with the smallest numerical value.

[0207] In an embodiment of the present application, the terminal performs CSI measurement according to the CSI report setting and obtains a CSI report. It is possible to use one CSI report setting to generate one CSI report to obtain two or more types of CQI information, which can reduce the overhead of CSI calculation, configuration, and feedback resources.

[0208] The channel state information reporting 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 or electronic 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., which is not specifically limited in the embodiments of the present application.

[0209] The channel state information reporting device provided in the embodiment of the present application can achieve Figures 1 to 2 The various processes implemented by the method embodiment achieve the same technical effect and are not described here again to avoid repetition.

[0210] Optional, such as Figure 4As shown, the embodiment of the present application further provides a communication device 400, including a processor 401, a memory 402, and a program or instruction stored in the memory 402 and executable on the processor 401. For example, when the communication device 400 is a terminal, the program or instruction, when executed by the processor 401, implements the various processes of the above-mentioned channel state information reporting method embodiment and can achieve the same technical effects. To avoid repetition, it will not be described here.

[0211] The embodiment of the present application also provides a terminal, including a processor and a communication interface, the processor is used to perform CSI measurement according to the channel state information CSI report setting and obtain a CSI report, the CSI report setting includes: a channel quality indication CQI table field, the communication interface is used to feed back the CSI report through an uplink channel, and the CSI report includes: a target number of CQIs. 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 5 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0212] The terminal 500 includes but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, and at least some of the components of the processor 510.

[0213] Those skilled in the art will understand that the terminal 500 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 510 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system. Figure 5 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.

[0214] It should be understood that in an embodiment of the present application, the input unit 504 may include a graphics processing unit (GPU) 5041 and a microphone 5042, and the graphics processor 5041 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 506 may include a display panel 5061, and the display panel 5061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 507 includes a touch panel 5071 and other input devices 5072. The touch panel 5071 is also called a touch screen. The touch panel 5071 may include two parts: a touch detection device and a touch controller. Other input devices 5072 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 an operating stick, which will not be repeated here.

[0215] In this embodiment of the present application, the radio frequency unit 501 receives downlink data from the network-side device and transmits it to the processor 510 for processing. Furthermore, the radio frequency unit 501 transmits uplink data to the network-side device. Typically, the radio frequency unit 501 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.

[0216] The memory 509 can be used to store software programs or instructions and various data. The memory 509 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area can store an operating system, at least one application program or instruction required for a function (such as a sound playback function, an image playback function, etc.). In addition, the memory 509 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.

[0217] Processor 510 may include one or more processing units. Optionally, processor 510 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 510.

[0218] The processor 510 is configured to perform CSI measurement according to a channel state information (CSI) report setting to obtain a CSI report, wherein the CSI report setting includes: a channel quality indication (CQI) table;

[0219] The radio frequency unit 501 is configured to feed back the CSI report via an uplink channel, where the CSI report includes a target number of CQIs.

[0220] In an embodiment of the present application, the terminal performs CSI measurement according to the CSI report setting and obtains a CSI report. It is possible to use one CSI report setting to generate one CSI report to obtain two or more types of CQI information, which can reduce the overhead of CSI calculation, configuration, and feedback resources.

[0221] Optionally, the target number is greater than or equal to two.

[0222] Optionally, the processor 510 is further configured to: obtain the target quantity;

[0223] Methods for obtaining the target quantity include at least one of the following:

[0224] The CSI reporting setting includes the target quantity;

[0225] Obtaining the target quantity according to the CQI table field;

[0226] According to the instruction of the network side device, the target quantity is obtained.

[0227] Optionally, the processor 510 acquires the target quantity according to the CQI table field, including:

[0228] Obtaining the target number according to a CQI table type corresponding to a bitmap of a first bit length in the CQI table field, wherein each bit corresponds to a CQI table type;

[0229] or

[0230] The target quantity is acquired according to the CQI table type corresponding to the code point in the CQI table field.

[0231] Optionally, the processor 510 performs CSI measurement according to a channel state information (CSI) report setting to obtain a CSI report, including:

[0232] Determining the number of CSI processing unit CPUs occupied by obtaining the CSI report;

[0233] According to the CSI report setting, the CPU performs CSI measurement to obtain a CSI report.

[0234] Optionally, the processor 510 determines the number of CSI processing unit CPUs occupied by obtaining the CSI report, including:

[0235] Determining, based on the number of valid channel measurement resources included in the CSI report configuration, the number of CPUs occupied by obtaining the CSI report;

[0236] or

[0237] The number of CPUs occupied by obtaining the CSI report is determined according to the number of channel measurement resources included in the CSI report configuration and the target number of CQIs.

[0238] Optionally, the processor 510 performs CSI measurement by the CPU according to the CSI report setting to obtain a CSI report, including:

[0239] According to the CSI report setting, the CPU performs CSI measurement to obtain a target number of CQIs and CQI-related information, and obtains a CSI report based on a measurement hypothesis.

[0240] Optionally, the CQI-related information includes at least one of the following:

[0241] The precoding matrix corresponding to the CQI indicates the PMI;

[0242] Resource indicator RI corresponding to CQI;

[0243] The CSI-RS resource indicator CRI corresponding to the CQI;

[0244] The layer corresponding to the CQI indicates LI.

[0245] Optionally, the measurement hypothesis includes one of the following:

[0246] If the target number of CQIs corresponds to different CQI tables, the CQI-related information corresponding to the different CQIs is all the same;

[0247] If the target number of CQIs corresponds to different CQI tables, respectively, the PMI and RI in the CQI-related information corresponding to the different CQIs are different, and other CQI-related information except the PMI and RI corresponding to the different CQIs are the same;

[0248] If the target number of CQIs corresponds to different CQI tables, the RIs in the CQI-related information corresponding to the different CQIs are different, and other CQI-related information except the RIs corresponding to the different CQIs are the same;

[0249] If the target number of CQIs corresponds to different CQI tables, respectively, the PMIs in the CQI-related information corresponding to the different CQIs are different, and other CQI-related information except the PMIs corresponding to the different CQIs are the same.

[0250] Optionally, the measurement hypothesis is determined by the terminal according to a first rule;

[0251] The first rule includes one of the following:

[0252] determining the measurement hypothesis according to predefined rules;

[0253] Determining the measurement hypothesis according to an instruction of a higher layer signaling;

[0254] The measurement hypothesis is customized according to the CSI measurement result.

[0255] Optionally, when the terminal customizes the measurement hypothesis according to the CSI measurement result, the radio frequency unit 501 is further configured to:

[0256] The measurement hypothesis is sent to a network-side device.

[0257] Optionally, the radio frequency unit 501 feeds back the CSI report through an uplink channel, including:

[0258] Mapping the CQI information in the CSI report to UCI;

[0259] The UCI is fed back via an uplink channel.

[0260] Optionally, the processor 510 is further configured to: when the terminal includes at least two CSI reports, obtain the priority of the CSI report;

[0261] According to the priority of the CSI report, the CQI information in each CSI report is mapped to the UCI.

[0262] Optionally, the more CQI numbers and corresponding CQI table types included in the CSI report, the higher the priority of the CSI report.

[0263] Optionally, the mapping manner of mapping the CQI information in the CSI report to the UCI includes one of the following:

[0264] When the CSI report includes one part, mapping the target number of CQIs respectively, wherein the target number of CQIs is mapped according to a predetermined order of CQI table numbers;

[0265] When the PMI granularity of the CSI report is wideband, mapping the target number of CQIs respectively, wherein the target number of CQIs is mapped according to a predetermined order of CQI table numbers;

[0266] When the CSI report includes two parts, the first CQI corresponding to the first-numbered CQI table is mapped to the first part, and the remaining CQIs except the first CQI are mapped to the second part according to a predetermined order of CQI table numbers; the first number is the CQI table number with the largest value or the CQI table number with the smallest value;

[0267] When the PMI granularity of the CSI report is subband, the second CQI corresponding to the second-numbered CQI table is mapped to the first part, and the remaining CQIs except the second CQI are mapped to the second part according to the predetermined order of the CQI table numbers; wherein the second number is the CQI table number with the largest numerical value or the CQI table number with the smallest numerical value.

[0268] In an embodiment of the present application, the terminal performs CSI measurement according to the CSI report setting and obtains a CSI report. It is possible to use one CSI report setting to generate one CSI report to obtain two or more types of CQI information, which can reduce the overhead of CSI calculation, configuration, and feedback resources.

[0269] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned channel state information reporting method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0270] The processor is the processor in the terminal 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.

[0271] 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 used to run programs or instructions to implement the various processes of the above-mentioned channel state information reporting method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0272] 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.

[0273] 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.

[0274] 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 network device, etc.) to execute the methods described in each embodiment of the present application.

[0275] 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 reporting channel state information, characterized in that: include: The terminal performs CSI measurement according to the channel state information CSI report setting and obtains a CSI report, wherein the CSI report setting includes: a channel quality indication CQI table field; The terminal feeds back the CSI report via an uplink channel, where the CSI report includes: a target number of CQIs; The CQI table field indicates multiple CQI tables, and different CQIs correspond to different CQI tables.

2. The method according to claim 1, characterized in that The target number is greater than or equal to two.

3. The method according to claim 1, characterized in that The method further comprises: obtaining the target quantity; Methods for obtaining the target quantity include at least one of the following: The CSI reporting setting includes the target quantity; Obtaining the target quantity according to the CQI table field; According to the instruction of the network side device, the target quantity is obtained.

4. The method according to claim 3, characterized in that The acquiring the target quantity according to the CQI table field includes: Obtaining the target number according to a CQI table type corresponding to a bitmap of a first bit length in the CQI table field, wherein each bit corresponds to a CQI table type; or The target quantity is acquired according to the CQI table type corresponding to the code point in the CQI table field.

5. The method according to claim 1, wherein The performing CSI measurement according to the channel state information CSI report setting and obtaining the CSI report includes: Determining the number of CSI processing unit CPUs occupied by obtaining the CSI report; According to the CSI report setting, the CPU performs CSI measurement to obtain a CSI report.

6. The method according to claim 5, characterized in that The determining and obtaining the number of CPUs of the CSI processing unit occupied by the CSI report includes: Determining, based on the number of valid channel measurement resources included in the CSI report configuration, the number of CPUs occupied by obtaining the CSI report; or The number of CPUs occupied by obtaining the CSI report is determined according to the number of channel measurement resources included in the CSI report configuration and the target number of CQIs.

7. The method according to claim 5, characterized in that The performing CSI measurement by the CPU according to the CSI report setting to obtain a CSI report includes: According to the CSI report setting, the CPU performs CSI measurement to obtain a target number of CQIs and CQI-related information, and obtains a CSI report based on a measurement hypothesis.

8. The method according to claim 7, characterized in that The CQI-related information includes at least one of the following: The precoding matrix corresponding to the CQI indicates the PMI; Resource indicator RI corresponding to CQI; The CSI-RS resource indicator CRI corresponding to the CQI; The layer corresponding to the CQI indicates LI.

9. The method according to claim 7, characterized in that The measurement assumptions include one of the following: If the target number of CQIs corresponds to different CQI tables, the CQI-related information corresponding to the different CQIs is all the same; If the target number of CQIs corresponds to different CQI tables, respectively, the PMI and RI in the CQI-related information corresponding to the different CQIs are different, and other CQI-related information except the PMI and RI corresponding to the different CQIs are the same; If the target number of CQIs corresponds to different CQI tables, the RIs in the CQI-related information corresponding to the different CQIs are different, and other CQI-related information except the RIs corresponding to the different CQIs are the same; If the target number of CQIs corresponds to different CQI tables, respectively, the PMIs in the CQI-related information corresponding to the different CQIs are different, and other CQI-related information except the PMIs corresponding to the different CQIs are the same.

10. The method according to claim 7, characterized in that The measurement hypothesis is determined by the terminal according to a first rule; The first rule includes one of the following: determining the measurement hypothesis according to predefined rules; Determining the measurement hypothesis according to an instruction of a higher layer signaling; The measurement hypothesis is customized according to the CSI measurement result.

11. The method according to claim 10, characterized in that When the terminal customizes the measurement hypothesis based on the CSI measurement result, the method further includes: The terminal sends the measurement hypothesis to a network-side device.

12. The method according to claim 1, characterized in that Feedback of the CSI report through an uplink channel includes: Mapping the CQI information in the CSI report to UCI; The UCI is fed back via an uplink channel.

13. The method according to claim 12, characterized in that The method further comprises: In a case where the terminal includes at least two CSI reports, obtaining a priority of the CSI reports; Mapping the CQI information in the CSI report to the UCI includes: According to the priority of the CSI report, the CQI information in each CSI report is mapped to the UCI.

14. The method according to claim 13, characterized in that The more CQI numbers and corresponding CQI table types included in the CSI report, the higher the priority of the CSI report.

15. The method according to claim 12, characterized in that The mapping method of mapping the CQI information in the CSI report to the UCI includes one of the following: When the CSI report includes one part, mapping the target number of CQIs respectively, wherein the target number of CQIs is mapped according to a predetermined order of CQI table numbers; When the PMI granularity of the CSI report is wideband, mapping the target number of CQIs respectively, wherein the target number of CQIs is mapped according to a predetermined order of CQI table numbers; When the CSI report includes two parts, the first CQI corresponding to the first-numbered CQI table is mapped to the first part, and the remaining CQIs except the first CQI are mapped to the second part according to a predetermined order of CQI table numbers; the first number is the CQI table number with the largest value or the CQI table number with the smallest value; When the PMI granularity of the CSI report is subband, the second CQI corresponding to the second-numbered CQI table is mapped to the first part, and the remaining CQIs except the second CQI are mapped to the second part according to the predetermined order of the CQI table numbers; wherein the second number is the CQI table number with the largest numerical value or the CQI table number with the smallest numerical value.

16. A channel state information reporting device, characterized in that: include: A measurement module is configured to perform CSI measurement according to a channel state information (CSI) report setting to obtain a CSI report, wherein the CSI report setting includes: a channel quality indication (CQI) table field; A feedback module, configured to feed back the CSI report via an uplink channel, wherein the CSI report includes: a target number of CQIs; The CQI table field indicates multiple CQI tables, and different CQIs correspond to different CQI tables.

17. The device according to claim 16, characterized in that The target number is greater than or equal to two.

18. The device according to claim 16, characterized in that The device further comprises: A first acquisition module is used to obtain the target quantity; Methods for obtaining the target quantity include at least one of the following: The CSI reporting setting includes the target quantity; Obtaining the target quantity according to the CQI table field; According to the instruction of the network side device, the target quantity is obtained.

19. The device according to claim 18, characterized in that The first acquisition module acquires the target quantity according to the CQI table field, including: Obtaining the target number according to a CQI table type corresponding to a bitmap of a first bit length in the CQI table field, wherein each bit corresponds to a CQI table type; or The target quantity is acquired according to the CQI table type corresponding to the code point in the CQI table field.

20. The device according to claim 16, wherein The measurement module includes: a determining unit, configured to determine the number of CSI processing unit CPUs occupied by obtaining the CSI report; A measuring unit is configured to perform CSI measurement through the CPU according to the CSI report setting to obtain a CSI report.

21. The device according to claim 20, characterized in that The determining unit is specifically configured to: Determining, based on the number of valid channel measurement resources included in the CSI report configuration, the number of CPUs occupied by obtaining the CSI report; or The number of CPUs occupied by obtaining the CSI report is determined according to the number of channel measurement resources included in the CSI report configuration and the target number of CQIs.

22. The device according to claim 20, characterized in that The measuring unit is specifically used for: According to the CSI report setting, the CPU performs CSI measurement to obtain a target number of CQIs and CQI-related information, and obtains a CSI report based on a measurement hypothesis.

23. The device according to claim 22, characterized in that The CQI-related information includes at least one of the following: The precoding matrix corresponding to the CQI indicates the PMI; Resource indicator RI corresponding to CQI; The CSI-RS resource indicator CRI corresponding to the CQI; The layer corresponding to the CQI indicates LI.

24. The device according to claim 22, characterized in that The measurement assumptions include one of the following: If the target number of CQIs corresponds to different CQI tables, the CQI-related information corresponding to the different CQIs is all the same; If the target number of CQIs corresponds to different CQI tables, respectively, the PMI and RI in the CQI-related information corresponding to the different CQIs are different, and other CQI-related information except the PMI and RI corresponding to the different CQIs are the same; If the target number of CQIs corresponds to different CQI tables, the RIs in the CQI-related information corresponding to the different CQIs are different, and other CQI-related information except the RIs corresponding to the different CQIs are the same; If the target number of CQIs corresponds to different CQI tables, respectively, the PMIs in the CQI-related information corresponding to the different CQIs are different, and other CQI-related information except the PMIs corresponding to the different CQIs are the same.

25. The device according to claim 22, characterized in that The measurement hypothesis is determined by the terminal according to a first rule; The first rule includes one of the following: determining the measurement hypothesis according to predefined rules; Determining the measurement hypothesis according to an instruction of a higher layer signaling; The measurement hypothesis is customized according to the CSI measurement result.

26. The device according to claim 25, characterized in that The terminal further includes: The sending module is used to send the measurement hypothesis to the network side device.

27. The device according to claim 16, characterized in that The feedback module includes: a mapping unit, configured to map the CQI information in the CSI report to UCI; The feedback unit is configured to feed back the UCI via an uplink channel.

28. The device according to claim 27, characterized in that The device further comprises: A second acquisition module is configured to acquire the priority of the CSI report when the terminal includes at least two CSI reports; The mapping unit is specifically configured to map the CQI information in each CSI report to the UCI according to the priority of the CSI report.

29. The device according to claim 28, characterized in that The more CQI numbers and corresponding CQI table types included in the CSI report, the higher the priority of the CSI report.

30. The device according to claim 27, characterized in that The mapping method of mapping the CQI information in the CSI report to the UCI includes one of the following: When the CSI report includes one part, mapping the target number of CQIs respectively, wherein the target number of CQIs is mapped according to a predetermined order of CQI table numbers; When the PMI granularity of the CSI report is wideband, mapping the target number of CQIs respectively, wherein the target number of CQIs is mapped according to a predetermined order of CQI table numbers; When the CSI report includes two parts, the first CQI corresponding to the first-numbered CQI table is mapped to the first part, and the remaining CQIs except the first CQI are mapped to the second part according to a predetermined order of CQI table numbers; the first number is the CQI table number with the largest value or the CQI table number with the smallest value; When the PMI granularity of the CSI report is subband, the second CQI corresponding to the second-numbered CQI table is mapped to the first part, and the remaining CQIs except the second CQI are mapped to the second part according to the predetermined order of the CQI table numbers; wherein the second number is the CQI table number with the largest numerical value or the CQI table number with the smallest numerical value.

31. A terminal, characterized in that: The method comprises 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 channel state information reporting method according to any one of claims 1 to 15.

32. 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 reporting method according to any one of claims 1 to 15 are implemented.

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