CSI (Channel State Information) reporting method and device

Abstract

The embodiment of the invention discloses a CSI (Channel State Information) reporting method and device, and the method comprises the steps that terminal equipment receives network configuration information sent by network equipment, obtains a CSI report based on the network configuration information, the CSI report comprises compressed channel information and / or an interference measurement result, and then the terminal equipment reports the CSI report. In this way, the terminal device can report the channel information and / or the interference measurement result obtained and compressed according to the network configuration information to the network device in a scene supporting intelligent CSI feedback, thereby realizing the technical scheme of CSI report reporting in the scene supporting intelligent CSI feedback.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a CSI reporting method and device. Background Art

[0002] NR R15 / 16 / 17 supports Type I and Type II codebooks, as well as enhanced Type II and further enhanced Type II codebooks. The basic principle of Type I codebook feedback is that the UE matches the codebook specified by the protocol with the estimated channel, selects the codebook that best matches the channel, and then feeds back the index corresponding to this codebook to the network side; the basic principle of Type II codebook and its enhancement is to use high-resolution CSI feedback to perform certain processing on the estimated channel, thereby feeding back the processed information, including the quantization of amplitude and phase.

[0003] The industry is currently widely discussing the introduction of artificial intelligence technology at the CSI level, that is, supporting intelligent CSI feedback. However, there is currently no specific plan for what specific information the CSI report should include after the introduction of the intelligent module. Summary of the invention

[0004] The embodiments of the present application disclose a CSI reporting method and device, and provide a technical solution for supporting intelligent CSI feedback scenarios to report CSI reports including compressed channel information and interference measurement results.

[0005] In a first aspect, an embodiment of the present application provides a method for reporting channel state information CSI, which is applied to a terminal device, and the method includes:

[0006] Receive network configuration information sent by network equipment;

[0007] Based on the network configuration information, obtaining a CSI report, where the CSI report includes compressed channel information and / or interference measurement results;

[0008] Reporting the CSI report to the network device.

[0009] In a second aspect, an embodiment of the present application provides a CSI reporting method, which is applied to a network device, and the method includes:

[0010] Send network configuration information to terminal devices;

[0011] A CSI report is received from the terminal device, where the CSI report includes compressed channel information and / or interference measurement results.

[0012] In a third aspect, an embodiment of the present application provides a CSI reporting device, which is applied to a terminal device, and the device includes:

[0013] A transceiver unit, used to receive network configuration information sent by a network device;

[0014] A processing unit, configured to obtain a CSI report based on the network configuration information, where the CSI report includes compressed channel information and / or interference measurement results;

[0015] The transceiver unit is further used to report the CSI report to the network device.

[0016] In a fourth aspect, an embodiment of the present application provides a CSI reporting device, which is applied to a network device, and the device includes:

[0017] A transceiver unit, used to send network configuration information to a terminal device;

[0018] The transceiver unit is further used to receive a CSI report from the terminal device, where the CSI report includes compressed channel information and / or interference measurement results.

[0019] In a fifth aspect, an electronic device is provided, comprising a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the steps in the methods described in the first aspect and the second aspect above.

[0020] In a sixth aspect, a computer-readable storage medium is provided, storing a computer program for electronic data exchange, wherein the computer program enables a computer to execute the methods described in the first and second aspects above.

[0021] In a seventh aspect, a computer program product is provided, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute some or all of the steps described in the first aspect and the second aspect of the embodiment of the present application. The computer program product may be a software installation package.

[0022] In an eighth aspect, a chip system is provided, which includes at least one processor, a memory and an interface circuit, wherein the memory, the transceiver and the at least one processor are interconnected via lines, and a computer program is stored in the at least one memory; when the computer program is executed by the processor, the methods described in the first aspect and the second aspect are implemented.

[0023] The technical solution provided by the present application is that a terminal device receives network configuration information sent by a network device, obtains a CSI report based on the network configuration information, the CSI report includes compressed channel information and / or interference measurement results, and then the terminal device reports the CSI report. In this way, the terminal device can report the channel information and interference measurement results obtained and compressed based on the network configuration information to the network device in a scenario that supports intelligent CSI feedback, thereby realizing a technical solution for CSI report reporting in a scenario that supports intelligent CSI feedback. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application;

[0026] Figure 2 It is a flowchart of a CSI reporting method provided in an embodiment of the present application;

[0027] Figure 3 It is a flowchart of another CSI reporting method provided by an embodiment of the present application;

[0028] Figure 4 It is a flowchart of another CSI reporting method provided by an embodiment of the present application;

[0029] Figure 5 It is a flowchart of another CSI reporting method provided by an embodiment of the present application;

[0030] Figure 6 It is a structural diagram of a CSI reporting device provided in an embodiment of the present application;

[0031] Figure 7 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0033] It should be understood that the technical solutions of the embodiments of the present application can be applied to the Global System for Mobile Communication (CSM), Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple access (WCDMA) system, Worldwide Interoperability for Microwave Access (Wi-MAX) system, Long Term Evolution (LTE) system, 5G communication system (such as New Radio (NR)), a communication system integrating multiple communication technologies (such as a communication system integrating LTE technology and NR technology), or suitable for various new communication systems in the future, such as 6G communication system, 7G communication system, etc., and the embodiments of the present application are not limited to this. The technical solutions of the embodiments of the present application are also applicable to different network architectures, including but not limited to relay network architecture, dual-link architecture, vehicle-to-everything communication architecture, etc.

[0034] The embodiments of the present application relate to terminal devices. The terminal device includes a device with wireless communication function, which may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in smart home, etc. The terminal device may also be a handheld device with wireless communication function, a vehicle-mounted device, a wearable device, a computer device or other processing device connected to a wireless modem, a terminal device in a future 5G network, or a terminal device in a future evolved public land mobile communication network (Public Land Mobile Network, referred to as PLMN), etc. In different networks, terminal devices may be called different names, such as: user equipment, access terminal, user unit, user station, mobile station, mobile station (Mobile Station, MS), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or user device, cellular phone, cordless phone, Session Initiation Protocol (Session Initiation Protocol, SIP) phone, Wireless Local Loop (Wireless Local Loop, WLL) station, Personal Digital Assistant (Personal Digital Assistant, PDA), 5G network or terminal equipment in future evolution network, etc. The embodiments of the present application are not limited to this.

[0035] The embodiments of the present application relate to a network device. The network device may be a device for communicating with a terminal device, including a radio access network (RAN) device, a base station controller of the RAN, and a device on the core network side. For example, the network device may be a base station of a RAN on the access network side of a cellular network, including but not limited to: an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., Home evolved Node B, or Home Node B, HNB), a Base Band Unit (BBU), and a Mobility Management Entity (MME); for another example, the network device may also be a node device in a wireless local area network (WLAN), such as an access controller (AC), a gateway, or a WIFI access point (AP); for another example, the network device may also be an access network device in an NR system (e.g., gNB, CU, DU), and an evolved Node B (ng-eNB), wherein the gNB and the terminal device communicate using NR technology, and the ng-eNB and the terminal device communicate using E-UTRA (Evolved Universal Terrestrial The network equipment in the embodiment of the present application also includes equipment that provides base station functions in future new communication systems, etc.

[0036] See also Figure 1 , Figure 1 Schematic diagram of the architecture of a communication system provided by an embodiment of the present application. Figure 1 As shown, the communication system includes network devices and terminal devices, and b=3 is used as an example for explanation. The network device can provide wireless access services for the terminal device. Each network device corresponds to a service coverage area, and the terminal device entering the area can communicate with the network device through wireless signals. In addition, the network devices can also communicate with each other.

[0037] based on Figure 1In the system architecture shown, after the terminal device performs CSI measurement, it can report CSI. The CSI report can be implemented by sending a CSI report to the network device. The CSI report can include the CSI measurement result of the terminal device. The network device will adjust the scheduling and / or beam management related work according to the reported content.

[0038] At present, the industry is widely discussing the introduction of artificial intelligence technology at the CSI level, that is, supporting intelligent CSI feedback. Specifically: the terminal side performs channel estimation based on CSI-RS to obtain downlink channel information; introduces an intelligent module on the terminal side to compress the downlink channel information, and feeds back the compressed channel information to the network side; the network side then uses the intelligent module to restore the compressed channel information. In this way, the terminal feedback overhead can be effectively reduced, and compared with the existing CSI feedback mechanism, the network side can obtain high-precision channel information. However, there is currently no specific plan for what information the CSI report should include after the introduction of the intelligent module.

[0039] In order to solve the above problems, an embodiment of the present application proposes a CSI reporting method, where the terminal device obtains a CSI report based on network configuration information, the CSI report includes compressed channel information and / or interference measurement results, and then reports the CSI report. In this way, the terminal device can report the channel information and / or interference measurement results obtained and compressed based on the network configuration information to the network device in a scenario that supports intelligent CSI feedback, thereby realizing a technical solution for CSI report reporting in a scenario that supports intelligent CSI feedback.

[0040] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] See also Figure 2 , Figure 2 A method for reporting channel state information CSI is provided. The method can be used in Figure 1 The method is performed on the communication system shown in the figure, and comprises the following steps:

[0042] S210. The network device sends network configuration information to the terminal device.

[0043] Before the terminal device performs CSI measurement and CSI reporting, the network device may send network configuration information to the terminal device, and the terminal device may perform CSI measurement and CSI reporting according to the network configuration information.

[0044] Optionally, the network configuration information is CSI report configuration information, and the CSI report configuration information includes explicit or implicit indication information, and the indication information is used to indicate the type of CSI measurement results that the associated CSI report should include.

[0045] The network configuration information may be CSI report configuration (csi-reportConfig) information configured by a radio resource control (RRC) high layer. The CSI report configuration information includes relevant configuration parameters for CSI reporting. For example, the CSI report configuration information includes indication information, according to which the terminal device may know the type of CSI measurement result in the CSI report reported this time.

[0046] Optionally, the type of the CSI measurement result includes type 1 and type 2, wherein type 1 is a type supported by existing standards, that is, a type without channel information compression, and type 2 is a type supporting channel information compression.

[0047] In an embodiment of the present application, in a scenario supporting intelligent CSI feedback, that is, when the CSI measurement result is of a type that supports channel information compression, the CSI report may not include rank indicator (RI), layer indicator (LI), precoding matrix indicator (PMI), CSI reference signal resource indicator (CSI-RS Resource Indicator, CRI), or channel quality indicator (CQI) and other related ground reporting information. The CSI report may directly include the compressed channel message.

[0048] The above-displayed indication information may be indicated by 1 bit, and of course, may also be other bit numbers. For example, for the above-mentioned 2 types of CSI measurement results, the indication information of the CSI measurement result of type 1 may take a value of 0; and the indication information of the CSI measurement result of type 2 may take a value of 1. Exemplarily, the indication information of the CSI measurement result of type 1 may take a value of 1; and the indication information of the CSI measurement result of type 2 may take a value of 0.

[0049] The above implicit indication information may be report Quantity (report quantity), and the terminal device implicitly learns the type of the CSI measurement result according to the specific content of reportQuantity. For example, for the above two types of CSI measurement results, the indication information of the CSI measurement result of type 1 may take a value of 0; the indication information of the CSI measurement result of type 2 may take a value of 1. Exemplarily, the indication information of the CSI measurement result of type 1 may take a value of 1; the indication information of the CSI measurement result of type 2 may take a value of 0.

[0050] In a possible implementation, the CSI report configuration information also includes information about the number of receiving antennas of the terminal device.

[0051] Wherein, the network device configures the number information of the receiving antennas of the terminal device, and the terminal device can obtain the input length information and / or output length information of the compression module according to the number information of the receiving antennas.

[0052] In a possible implementation manner, the CSI report configuration information further includes input length information and / or output length information of the compression module.

[0053] The input length information and / or output length information of the compression module is determined according to the capability information reported by the terminal device.

[0054] Specifically, after the terminal device is powered on, it can report its capability information to the network device. The network device configures the input length information and / or output length information of the compression module that the terminal device can support for the terminal device according to the capability information reported by the terminal device, so that the input length information and / or output length information of the compression module configured by the network device meets the capability of the terminal device.

[0055] S220. The terminal device receives network configuration information sent by the network device, and obtains a CSI report based on the network configuration information. The CSI report includes compressed channel information and / or interference measurement results.

[0056] In an embodiment of the present application, the terminal device performs channel estimation based on the network configuration information to obtain downlink channel information; then compresses the downlink channel information through the compression module to obtain compressed channel information, and then carries the compressed channel information and the measured interference measurement results in the CSI report.

[0057] Optionally, the CSI report is divided into part 1 and part 2, and the CSI report includes compressed channel information and / or interference measurement results obtained by the terminal device in an intelligent CSI feedback scenario, so that the terminal device can report the CSI report including compressed channel information and / or interference measurement results, thereby realizing a technical solution that supports CSI report reporting in an intelligent CSI feedback scenario.

[0058] In one possible implementation, part 1 includes the compressed channel information; part 2 includes group 0 and / or group 1, group 0 includes interference measurement results based on channel state information interference management CSI-IM, and group 1 includes interference measurement results based on non-zero power channel state information reference signal NZP CSI-RS.

[0059] In a scenario supporting intelligent CSI feedback, the CSI report obtained by the terminal device according to the network configuration information may consist of two parts: Part 1 includes compressed channel information, such as channel, and Part 2 includes interference measurement results.

[0060] The resource information associated with the CSI report configuration information includes resources used for interference measurement.

[0061] nzp-CSI-RS and / or csi-IM. When the terminal device is configured with CSI-IM, part 2 of the CSI report may include measurement results based on CSI-IM; when the terminal device is configured with nzp-CSI-RS, part 2 of the CSI report may include measurement results based on nzp-CSI-RS; when the terminal device is configured with CSI-IM and nzp-CSI-RS, part 2 of the CSI report may include measurement results based on CSI-IM and measurement results based on nzp-CSI-RS.

[0062] Optionally, the part 1 also includes input length information and / or output length information of the compression module.

[0063] Part 1 may also include input length information and / or output length information of the compression module of the terminal device. The input length information and / or output length information of the compression module may be the input length information and / or output length information of the compression module in the CSI report configuration information configured by the network device. Specifically, before receiving the network configuration information sent by the network device, the terminal device first reports its capability information to the network device, and the network device configures the input length information and / or output length information of the compression module supported by the terminal device according to the capability information reported by the terminal device.

[0064] Optionally, the method further includes: based on the information on the number of receiving antennas, the terminal device determines the input length information and / or output length information of the compression module.

[0065] Specifically, the network device configures the number of receiving antennas of the terminal device in the CSI report configuration information. The terminal device determines the input length information and / or output length information of the compression module based on the number of receiving antennas information, and reports it to the network device through the CSI report.

[0066] In a possible implementation, the part 1 includes input length information and / or output length information of the compression module; the part 2 includes the compressed channel information and / or the interference measurement result.

[0067] In the embodiment of the present application, the load size of part 1 in the CSI report is fixed, part 1 includes input length information and / or output length information of the compression module, and part 2 includes the compressed channel information and / or the interference measurement result. The interference measurement result includes an interference measurement result based on CSI-IM and / or an interference measurement result based on NZP CSI-RS.

[0068] In a possible implementation, the part 1 includes input length information and / or output length information of the compression module, and / or the interference measurement result; and the part 2 includes the compressed channel information.

[0069] In a possible implementation, the part 1 includes the compressed channel information; the part 2 includes input length information and / or output length information of the compression module, and / or the interference measurement result.

[0070] In a possible implementation, the part 1 includes the compressed channel information and / or the interference measurement result; the part 2 includes input length information and / or output length information of the compression module.

[0071] In one possible implementation, part 1 includes group 0 and / or group 1, group 0 includes interference measurement results based on channel state information interference measurement CSI-IM, and group 1 includes interference measurement results based on non-zero power channel state information reference signal NZP CSI-RS; part 2 includes the compressed channel information.

[0072] Wherein, the part 2 also includes input length information and / or output length information of the compression module.

[0073] In one possible implementation, the method also includes: before reporting the CSI report to the network device, if uplink feedback resources are limited, partially or completely discarding the part 2 with low or high priority according to a first priority order, and the first priority order is: group 0>group 1.

[0074] In a specific implementation, when uplink feedback resources are limited, in order to reduce the feedback overhead of the terminal device, the terminal device may choose to partially or completely discard part 2 in the CSI report. Of course, under other conditions, the terminal device may also choose to partially or completely discard part 2 in the CSI report, for example, after receiving a discard command from a network device.

[0075] When part 2 in the CSI report is discarded partially or entirely, part 2 with a low priority may be discarded first, or part 2 with a high priority may be discarded first. For example, when part 2 includes group 0 and group 1, group 1 may be discarded first or group 0 may be discarded first; when part 2 does not include an interference measurement result, part 2 may be discarded entirely.

[0076] It should be noted that the above priorities can be used when discarding the groups in part 2. Of course, in practical applications, they can also be used in other scenarios, such as determining the measurement order according to the priorities.

[0077] In one possible implementation, the method also includes: before reporting the CSI report to the network device, if uplink feedback resources are limited, partially or completely discarding the CSI report with a low or high priority according to a second priority order, and the second priority order is: part 1 of type 2 ≥ part 1 of type 1 ≥ part 2 of type 2 ≥ part 2 of type 1.

[0078] In a specific implementation, when uplink feedback resources are limited, in order to reduce the feedback overhead of the terminal device, the terminal device may choose to discard the CSI report. Of course, under other conditions, the terminal device may also choose to discard the CSI report, for example, after receiving a discard command from the network device.

[0079] When discarding a CSI report, part 2 of the CSI report or part 1 of the CSI report may be discarded first. For example, when a terminal device needs to report CSI report A and CSI report B of the same CSI measurement result type, the terminal device may choose to discard part 1 of CSI report A and CSI report B first, and then discard part 2 of CSI report A and CSI report B; or discard part 2 of CSI report A and CSI report B first, and then discard part 1 of CSI report A and CSI report B.

[0080] Furthermore, when the types of CSI measurement results are different, the terminal device may preferentially discard the CSI measurement results of low priority, or preferentially discard the CSI measurement results of high priority. The priority order is: CSI report with CSI measurement result of type 1 >= CSI report with CSI measurement result of type 2, and the priority of the CSI report is iCSI (y, k, c, s) can be specifically represented as:

[0081] Pri iCSI (y,k,c,s)=2*N cells *M s *y+N cells *M s *k+M s *c+s

[0082] For aperiodic CSI reports scheduled to be carried on PUSCH, the value of y is 0; for semi-persistent CSI reports scheduled to be carried on PUSCH, the value of y is 1; for semi-persistent CSI reports scheduled to be carried on PUCCH, the value of y is 2; for periodic CSI reports scheduled to be carried on PUCCH, the value of y is 3. c is the cell index value, N cells is the value of the high-level parameter maxNrofServingCells serving cell number. The s is the reportConfigID of the CSI report configuration ID, M s is the value of the high-level parameter maxNrofCSI-ReportConfigurations CSI report configuration number. k is the type of terminal device measurement parameter. For CSI reports carrying L1-RSRP or L1-SINR, the value of k is 0; for CSI reports carrying non-L1-RSRP or L1-SINR, the value of k is 1. If a CSI report A is associated with Pri iCSI (y,k,c,s) takes a value less than the Pri associated with a CSI report B. iCSI If the value of (y, k, c, s) is the same, the priority of CSI report A is higher than that of CSI report B.

[0083] Exemplarily, when a terminal device needs to report a CSI report with a CSI measurement result type of type 2 and a CSI report with a CSI measurement result type of type 1, the terminal device may choose to first discard part 2 of the CSI report with a CSI measurement result type of type 1; if the uplink feedback resources are still insufficient, the terminal device may then discard part 2 of the CSI report with a CSI measurement result type of type 2; if the uplink feedback resources are still insufficient, then discard part 1 of the CSI report with a CSI measurement result type of type 1; if the uplink feedback resources are still insufficient, finally discard part 1 of the CSI report with a CSI measurement result type of type 2.

[0084] Exemplarily, when a terminal device needs to report a CSI report with a CSI measurement result type of type 2 and a CSI report with a CSI measurement result type of type 1, the terminal device may choose to first discard part 1 of the CSI report with a CSI measurement result type of type 2; if the uplink feedback resources are still insufficient, the terminal device may then discard part 1 of the CSI report with a CSI measurement result type of type 1; if the uplink feedback resources are still insufficient, then discard part 2 of the CSI report with a CSI measurement result type of type 2; if the uplink feedback resources are still insufficient, finally discard part 2 of the CSI report with a CSI measurement result type of type 1.

[0085] It should be noted that the above priorities can be used when discarding groups in a CSI report. Of course, in practical applications, they can also be used in other scenarios, such as determining a measurement order based on priorities.

[0086] S230. The terminal device reports a CSI report to the network device.

[0087] Specifically, after the terminal device obtains the CSI report, it reports the CSI report to the network device.

[0088] S240. The network device receives a CSI report from the terminal device.

[0089] Accordingly, the network device receives the CSI report sent by the terminal device, and then uses the compression model to restore the compressed channel information. In this way, the terminal feedback overhead can be effectively reduced, and compared with the existing CSI feedback mechanism, the network device can obtain high-precision channel information.

[0090] It can be seen that in the CSI reporting method proposed in the embodiment of the present application, the terminal device receives the network configuration information sent by the network device, obtains a CSI report based on the network configuration information, and the CSI report includes compressed channel information and / or interference measurement results. Then the terminal device reports the CSI report. In this way, the terminal device can report the channel information and / or interference measurement results obtained and compressed based on the network configuration information to the network device in a scenario that supports intelligent CSI feedback, thereby realizing a technical solution for CSI report reporting in a scenario that supports intelligent CSI feedback.

[0091] See also Figure 3 , Figure 3 The present application embodiment provides a method for reporting channel state information CSI, which can be used in Figure 1 The method is performed under the network architecture shown in the figure, and comprises the following steps:

[0092] S310, the network device sends network configuration information to the terminal device;

[0093] S320, the terminal device receives network configuration information sent by the network device, and obtains a CSI report based on the network configuration information, where the CSI report consists of part 1 and part 2, where part 1 includes compressed channel information, and part 2 includes group 0 and / or group 1;

[0094] S330, when uplink feedback resources are limited, preferentially discard the CSI report with a low priority or a high priority, and the priority order is: part 1 of type 2 ≥ part 1 of type 1 ≥ part 2 of type 2 ≥ part 2 of type 1;

[0095] S340, the terminal device reports the CSI report to the network device;

[0096] S350: The network device receives a CSI report.

[0097] The above group 0 includes interference measurement results based on channel state information interference measurement CSI-IM, and group 1 includes interference measurement results based on non-zero power channel state information reference signal NZP CSI-RS. The above part 1 may also include input length information and / or output length information of the compression module.

[0098] The specific description of the above steps S310-S350 can refer to the above Figure 2 The corresponding steps described are not repeated here.

[0099] The technical solution provided in the embodiment of the present application implements a technical solution for supporting CSI report reporting in an intelligent CSI feedback scenario. The CSI report includes compressed channel information and / or interference measurement results, which can effectively reduce terminal feedback overhead; and when uplink resources are limited, the CSI report can be discarded according to priority order, thereby improving network quality.

[0100] See also Figure 4 , Figure 4 The present application embodiment provides a method for reporting channel state information CSI, which can be used in Figure 1 The method is performed under the network architecture shown in the figure, and comprises the following steps:

[0101] S410, the network device sends network configuration information to the terminal device;

[0102] S420, the terminal device receives the network configuration information sent by the network device, and obtains a CSI report based on the network configuration information, where the CSI report consists of part 1 and part 2, where part 1 includes input length information and / or output length information of the compression module, and part 2 includes compressed channel information and / or interference measurement results;

[0103] S430: When uplink feedback resources are limited, the CSI report with a low priority or a high priority is discarded preferentially, and the priority order is: part 1 of type 2 ≥ part 1 of type 1 ≥ part 2 of type 2 ≥ part 2 of type 1;

[0104] S440, the terminal device reports the CSI report to the network device;

[0105] S450: The network device receives a CSI report.

[0106] The specific description of the above steps S410-S450 can refer to the above Figure 2 The corresponding steps described are not repeated here.

[0107] The technical solution provided in the embodiment of the present application implements a technical solution for supporting CSI report reporting in an intelligent CSI feedback scenario. The CSI report includes compressed channel information and / or interference measurement results, which can effectively reduce terminal feedback overhead; and when uplink resources are limited, the CSI report can be discarded according to priority order, thereby improving network quality.

[0108] See also Figure 5 , Figure 5 The present application embodiment provides a method for reporting channel state information CSI, which can be used in Figure 1 The method is performed under the network architecture shown in the figure, and comprises the following steps:

[0109] S510, the network device sends network configuration information to the terminal device;

[0110] S520, the terminal device receives the network configuration information sent by the network device, and obtains a CSI report based on the network configuration information, where the CSI report consists of part 1 and part 2, where part 1 includes input length information and / or output length information of the compression module, and / or interference measurement results, and part 2 includes compressed channel information;

[0111] S530: When uplink feedback resources are limited, the CSI report with a low priority or a high priority is discarded preferentially, and the priority order is: part 1 of type 2 ≥ part 1 of type 1 ≥ part 2 of type 2 ≥ part 2 of type 1;

[0112] S540, the terminal device reports the CSI report to the network device;

[0113] S550: The network device receives a CSI report.

[0114] The specific description of the above steps S510-S550 can refer to the above Figure 2 The corresponding steps described are not repeated here.

[0115] The technical solution provided in the embodiment of the present application implements a technical solution for supporting CSI report reporting in an intelligent CSI feedback scenario. The CSI report includes compressed channel information and / or interference measurement results, which can effectively reduce terminal feedback overhead; and when uplink resources are limited, the CSI report can be discarded according to priority order, thereby improving network quality.

[0116] The above mainly introduces the scheme of the embodiment of the present application from the perspective of the execution process on the method side. It is understandable that, in order to realize the above functions, the electronic device includes a hardware structure and / or software module corresponding to the execution of each function. It should be easily appreciated by those skilled in the art that, in combination with the units and algorithm steps of each example described in the embodiments provided herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present application.

[0117] See also Figure 6 , Figure 6 It is a block diagram of the functional units of a CSI reporting device 600 provided in an embodiment of the present application. The device 600 may be a terminal device or a network device. The device 600 includes: a transceiver unit 610 and a processing unit 620.

[0118] In a possible implementation, the apparatus 600 is used to execute various processes and steps corresponding to the terminal device in the above-mentioned CSI reporting method.

[0119] The transceiver unit 610 is used to receive network configuration information sent by a network device;

[0120] The processing unit 620 is configured to obtain a CSI report based on the network configuration information, where the CSI report includes compressed channel information and / or interference measurement results;

[0121] The transceiver unit 610 is further configured to report the CSI report to the network device.

[0122] Optionally, the CSI report consists of part 1 and part 2.

[0123] Optionally, part 1 includes the compressed channel information; part 2 includes group 0 and / or group 1, group 0 includes interference measurement results based on channel state information interference measurement CSI-IM, and group 1 includes interference measurement results based on non-zero power channel state information reference signal NZP CSI-RS.

[0124] Optionally, the part 1 also includes input length information and / or output length information of the compression module.

[0125] Optionally, the part 1 includes input length information and / or output length information of the compression module; the part 2 includes the compressed channel information and / or the interference measurement result.

[0126] Optionally, the part 1 includes input length information and / or output length information of the compression module, and / or the interference measurement result; and the part 2 includes the compressed channel information.

[0127] The processing unit 620 is further configured to, before reporting the CSI report to the network device, if uplink feedback resources are limited, partially or completely discard the part 2 with a low priority or a high priority according to a first priority order.

[0128] Optionally, the first priority order is: group 0>group 1.

[0129] Optionally, the network configuration information is CSI report configuration information, and the CSI report configuration information includes explicit or implicit indication information, and the indication information is used to indicate the type of CSI measurement results that the associated CSI report should include.

[0130] Optionally, the type of the CSI measurement result includes type 1 and type 2, where type 1 is a type supported by existing standards and type 2 is a type that supports channel information compression.

[0131] Optionally, the CSI report configuration information also includes information about the number of receiving antennas of the terminal device.

[0132] Optionally, the processing unit 620 is further used to determine the input length information and / or output length information of the compression module according to the information on the number of receiving antennas.

[0133] Optionally, the CSI report configuration information also includes input length information and / or output length information of the compression module.

[0134] Optionally, the input length information and / or output length information of the compression module is determined based on capability information reported by the terminal device.

[0135] Optionally, the processing unit 620 is further used to, before reporting the CSI report to the network device, if uplink feedback resources are limited, partially or completely discard the CSI report with a low or high priority according to a second priority order, and the second priority order is: part 1 of type 2 ≥ part 1 of type 1 ≥ part 2 of type 2 ≥ part 2 of type 1.

[0136] In another possible implementation, the apparatus 600 is used to execute various processes and steps corresponding to the network device in the above-mentioned CSI reporting method.

[0137] The transceiver unit 610 is used to send network configuration information to the terminal device;

[0138] The transceiver unit 610 is further configured to receive a CSI report from the terminal device, where the CSI report includes compressed channel information and / or interference measurement results.

[0139] Optionally, the CSI report consists of part 1 and part 2.

[0140] Optionally, part 1 includes the compressed channel information; part 2 includes group 0 and / or group 1, group 0 includes interference measurement results based on channel state information interference measurement CSI-IM, and group 1 includes interference measurement results based on non-zero power channel state information reference signal NZP CSI-RS.

[0141] Optionally, the part 1 also includes input length information and / or output length information of the compression module.

[0142] Optionally, the part 1 includes input length information and / or output length information of the compression module; the part 2 includes the compressed channel information and / or the interference measurement result.

[0143] Optionally, the part 1 includes input length information and / or output length information of the compression module, and / or the interference measurement result; and the part 2 includes the compressed channel information.

[0144] Optionally, the network configuration information is CSI report configuration information, and the CSI report configuration information includes explicit or implicit indication information, and the indication information is used to indicate the type of CSI measurement results that the associated CSI report should include.

[0145] Optionally, the type of the CSI measurement result includes type 1 and type 2, where type 1 is a type supported by existing standards and type 2 is a type that supports channel information compression.

[0146] Optionally, the CSI report configuration information also includes information about the number of receiving antennas of the terminal device, and the information about the number of receiving antennas is used by the terminal device to determine input length information and / or output length information of the compression module.

[0147] Optionally, the CSI report configuration information also includes input length information and / or output length information of the compression module.

[0148] Optionally, the processing unit 620 is used to determine the input length information and / or output length information of the compression module supported by the terminal device according to the capability information reported by the terminal device.

[0149] It can be understood that the functions of each program module of the CSI reporting device in the embodiment of the present application can be specifically implemented according to the method in the above method embodiment, and its specific implementation process can refer to the relevant description of the above method embodiment, which will not be repeated here.

[0150] It should be understood that the device 600 here is embodied in the form of a functional unit. The term "unit" here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a proprietary processor or a group processor, etc.) and a memory for executing one or more software or firmware programs, a merged logic circuit and / or other suitable components that support the described functions. In an optional example, those skilled in the art can understand that the device 600 can be specifically the terminal device and the network device in the above-mentioned embodiment, and the device 600 can be used to execute the various processes and / or steps corresponding to the terminal device and the network device in the above-mentioned method embodiment. To avoid repetition, it will not be repeated here.

[0151] The apparatus 600 of each of the above schemes has the function of implementing the corresponding steps performed by the terminal device and the network device in the above method; the function can be implemented by hardware, or by hardware executing the corresponding software. The hardware or software includes one or more modules corresponding to the above functions; for example, the processing unit 620 can be replaced by a processor, and the transceiver unit 610 can be replaced by a transmitter and a receiver, respectively performing the transceiver operations and related processing operations in each method embodiment.

[0152] In the embodiments of the present application, Figure 6 The device 600 in the embodiment may also be a chip or a chip system, such as a system on chip (SoC). Correspondingly, the transceiver unit may be a transceiver circuit of the chip, which is not limited here.

[0153] See also Figure 7 , Figure 7 An electronic device provided by an embodiment of the present application includes: one or more processors, one or more memories, one or more communication interfaces, and one or more programs; the one or more programs are stored in the memories and are configured to be executed by the one or more processors.

[0154] In a possible implementation, the electronic device is a terminal device, and the program includes instructions for executing the following steps:

[0155] Receive network configuration information sent by network equipment;

[0156] Based on the network configuration information, obtaining a CSI report, where the CSI report includes compressed channel information and / or interference measurement results;

[0157] Reporting the CSI report to the network device.

[0158] In another possible implementation, the electronic device is a network device, and the program includes instructions for executing the following steps:

[0159] Send network configuration information to terminal devices;

[0160] A CSI report is received from the terminal device, where the CSI report includes compressed channel information and / or interference measurement results.

[0161] Among them, all relevant contents of each scenario involved in the above method embodiment can be referred to the functional description of the corresponding functional module, which will not be repeated here.

[0162] It should be understood that the above-mentioned memory may include a read-only memory and a random access memory, and provide instructions and data to the processor. A portion of the memory may also include a non-volatile random access memory. For example, the memory may also store information about the device type.

[0163] In the embodiment of the present application, the processor of the above-mentioned device may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0164] In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software. The steps of the method disclosed in conjunction with the embodiment of the present application can be directly embodied as a hardware processor for execution, or a combination of hardware and software units in a processor for execution. The software unit can be located in a storage medium mature in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in a memory, and the processor executes the instructions in the memory, and completes the steps of the above method in conjunction with its hardware. To avoid repetition, it is not described in detail here.

[0165] An embodiment of the present application also provides a chip system, which includes at least one processor, a memory and an interface circuit, wherein the memory, the transceiver and the at least one processor are interconnected via lines, and a computer program is stored in the at least one memory; the computer program is executed by the processor as part or all of the steps of any method recorded in the above method embodiments.

[0166] An embodiment of the present application also provides a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of any method recorded in the above method embodiments.

[0167] The present application also provides a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute some or all of the steps of any method described in the above method embodiment. The computer program product may be a software installation package.

[0168] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0169] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0170] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the above-mentioned units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0171] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present application.

[0172] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0173] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or all or part of the technical solution, can be embodied in the form of a software product, which is stored in a memory and includes several instructions for a computer device (which can be a personal computer, server or TRP, etc.) to execute all or part of the steps of the various embodiments of the present application. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk and other media that can store program codes.

[0174] A person skilled in the art may understand that all or part of the steps in the various methods of the above embodiments may be completed by instructing the relevant hardware through a program, and the program may be stored in a computer-readable memory, which may include a flash drive, ROM, RAM, a magnetic disk or an optical disk, etc.

[0175] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A method for reporting channel state information CSI, characterized in that: Applied to a terminal device, the method comprises: Receive network configuration information sent by network equipment; Based on the network configuration information, obtain a CSI report, where the CSI report includes compressed channel information and / or interference measurement results, and the CSI report consists of part 1 and part 2; Reporting the CSI report to the network device; Part 1 includes the compressed channel information; Part 2 includes Group 0 and / or Group 1, Group 0 includes interference measurement results based on channel state information interference measurement CSI-IM, and Group 1 includes interference measurement results based on non-zero power channel state information reference signal NZP CSI-RS; or, The part 1 includes input length information and / or output length information of the compression module, and / or the interference measurement result; the part 2 includes the compressed channel information.

2. The method according to claim 1, characterized in that The part 1 also includes input length information and / or output length information of the compression module.

3. The method according to claim 1, characterized in that The method further comprises: Before reporting the CSI report to the network device, if uplink feedback resources are limited, the part 2 with a low priority or a high priority is partially or completely discarded according to the first priority order.

4. The method according to claim 3, characterized in that The first priority order is: group 0>group 1.

5. The method according to claim 1, characterized in that: The network configuration information is CSI report configuration information, and the CSI report configuration information includes explicit or implicit indication information, and the indication information is used to indicate the type of CSI measurement result that the associated CSI report should include.

6. The method according to claim 5, characterized in that The types of the CSI measurement results include type 1 and type 2, wherein type 1 is a type supported by existing standards, and type 2 is a type supporting channel information compression.

7. The method according to claim 5, characterized in that The CSI report configuration information also includes information about the number of receiving antennas of the terminal device.

8. The method according to claim 7, characterized in that The method further comprises: According to the information about the number of receiving antennas, the terminal device determines the input length information and / or output length information of the compression module.

9. The method according to claim 5, characterized in that The CSI report configuration information also includes input length information and / or output length information of the compression module.

10. The method according to claim 9, characterized in that The input length information and / or output length information of the compression module is determined according to the capability information reported by the terminal device.

11. The method according to any one of claims 5 to 10, characterized in that: The method further comprises: Before reporting the CSI report to the network device, if uplink feedback resources are limited, the CSI report with low or high priority is partially or completely discarded according to a second priority order, and the second priority order is: part 1 of type 2 ≥ part 1 of type 1 ≥ part 2 of type 2 ≥ part 2 of type 1.

12. A method for reporting channel state information CSI, characterized in that: Applied to a network device, the method comprises: Send network configuration information to terminal devices; receiving a CSI report from the terminal device, the CSI report comprising compressed channel information and / or interference measurement results, the CSI report consisting of part 1 and part 2; Part 1 includes the compressed channel information; Part 2 includes Group 0 and / or Group 1, Group 0 includes interference measurement results based on channel state information interference management CSI-IM, and Group 1 includes interference measurement results based on non-zero power channel state information reference signal NZP CSI-RS; or, The part 1 includes input length information and / or output length information of the compression module, and / or the interference measurement result; the part 2 includes the compressed channel information.

13. The method according to claim 12, characterized in that The part 1 also includes input length information and / or output length information of the compression module.

14. The method according to claim 12, characterized in that The network configuration information is CSI report configuration information, and the CSI report configuration information includes explicit or implicit indication information, and the indication information is used to indicate the type of CSI measurement result that the associated CSI report should include.

15. The method according to claim 14, characterized in that The types of the CSI measurement results include type 1 and type 2, wherein type 1 is a type supported by existing standards, and type 2 is a type supporting channel information compression.

16. The method according to claim 14, characterized in that The CSI report configuration information also includes information about the number of receiving antennas of the terminal device, and the information about the number of receiving antennas is used by the terminal device to determine input length information and / or output length information of the compression module.

17. The method according to claim 14, characterized in that The CSI report configuration information also includes input length information and / or output length information of the compression module.

18. The method according to claim 17, characterized in that The method further comprises: The network device determines the input length information and / or output length information of the compression module supported by the terminal device according to the capability information reported by the terminal device.

19. A CSI reporting device, characterized in that: Applied to a terminal device, the device comprises: A transceiver unit, used to receive network configuration information sent by a network device; a processing unit, configured to obtain a CSI report based on the network configuration information, wherein the CSI report includes compressed channel information and / or interference measurement results, and the CSI report consists of part 1 and part 2; The transceiver unit is further configured to report the CSI report to the network device; Part 1 includes the compressed channel information; Part 2 includes Group 0 and / or Group 1, Group 0 includes interference measurement results based on channel state information interference measurement CSI-IM, and Group 1 includes interference measurement results based on non-zero power channel state information reference signal NZP CSI-RS; or, The part 1 includes input length information and / or output length information of the compression module, and / or the interference measurement result; the part 2 includes the compressed channel information.

20. A CSI reporting device, characterized in that: Applied to network equipment, the device comprises: A transceiver unit, used to send network configuration information to a terminal device; The transceiver unit is further configured to receive a CSI report from the terminal device, wherein the CSI report includes compressed channel information and / or interference measurement results, and the CSI report consists of part 1 and part 2; Part 1 includes the compressed channel information; Part 2 includes Group 0 and / or Group 1, Group 0 includes interference measurement results based on channel state information interference management CSI-IM, and Group 1 includes interference measurement results based on non-zero power channel state information reference signal NZP CSI-RS; or, The part 1 includes input length information and / or output length information of the compression module, and / or the interference measurement result; the part 2 includes the compressed channel information.

21. An electronic device, characterized in that: The electronic device includes a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for executing the steps in the method described in any one of claims 1-11 or instructions for the steps in the method described in any one of claims 12-18.

22. A chip system, comprising at least one processor, a memory and an interface circuit, wherein the memory, the interface circuit and the at least one processor are interconnected via lines, and a computer program is stored in the at least one memory; when the computer program is executed by the processor, the method described in any one of claims 1 to 11 or the method described in any one of claims 12 to 18 is implemented.

23. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program enables a computer to execute the steps of the method according to any one of claims 1 to 11 or the steps of the method according to any one of claims 12 to 18.

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