CSI reporting method, terminal, network device and storage medium

Abstract

The embodiment of the invention provides a CSI (Channel State Information) reporting method, a terminal, network equipment and a storage medium. The method comprises: receiving configuration information sent by a network device, the configuration information at least comprising a first number M of CSI-RS resources for channel state information (CSI) reporting; according to the configuration information and the CSI priorities corresponding to the M CSI-RS resources, discarding a part of CSI corresponding to the M CSI-RS resources; and reporting the residual CSI corresponding to the M CSI-RS resources to the network equipment. According to the method disclosed by the invention, the CSI can be effectively reported when the uplink transmission resource is limited, the integrity of the CSI corresponding to at least part of CSI-RS resources can be ensured, and the system performance is ensured.

Description

Technical Field

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

[0002] In the channel state information (CSI) report, the network device can configure the CSI report amount that needs to be reported for the terminal. In the scenario where the number of antenna ports is increased, the number of users connected to the network is greater, and accordingly, the network requires the terminal to feedback more CSI. For a terminal, a CSI report needs to store the CSI corresponding to different CSI reference signal (CSI-RS) resources. Summary of the invention

[0003] When uplink transmission resources are insufficient, the terminal may partially discard CSI. In the discarding method of the related art, the CSI corresponding to each CSI-RS resource will be partially discarded, resulting in incomplete CSI corresponding to each CSI-RS resource, affecting system performance.

[0004] The embodiments of the present disclosure provide a CSI reporting method, a terminal, a network device, and a storage medium.

[0005] In a first aspect, an embodiment of the present disclosure provides a CSI reporting method, which is performed by a terminal, and the method includes:

[0006] receiving configuration information sent by a network device, where the configuration information at least includes a first number M of CSI-RS resources used for reporting channel state information CSI;

[0007] According to the configuration information and the CSI priorities corresponding to the M CSI-RS resources, part of the CSI corresponding to the M CSI-RS resources is discarded;

[0008] Report the remaining CSI corresponding to the M CSI-RS resources to the network device.

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

[0010] Sending configuration information to the terminal, where the configuration information at least includes a first number M of CSI-RS resources used for channel state information CSI reporting;

[0011] The remaining CSI corresponding to the M CSI-RS resources reported by the receiving terminal is obtained by discarding part of the CSI corresponding to the M CSI-RS resources according to the configuration information and the CSI priorities corresponding to the M CSI-RS resources.

[0012] In a third aspect, an embodiment of the present disclosure provides a terminal, including:

[0013] A transceiver module, configured to receive configuration information sent by a network device, where the configuration information at least includes a first number M of CSI-RS resources used for reporting channel state information CSI;

[0014] A processing module, configured to discard part of the CSI corresponding to the M CSI-RS resources according to the configuration information and the CSI priorities corresponding to the M CSI-RS resources;

[0015] The transceiver module is further used to report the remaining CSI corresponding to the M CSI-RS resources to the network device.

[0016] In a fourth aspect, an embodiment of the present disclosure provides a network device, including:

[0017] A transceiver module, configured to send configuration information to a terminal, where the configuration information at least includes a first number M of CSI-RS resources used for reporting channel state information CSI;

[0018] The transceiver module is also used to receive the remaining CSI corresponding to M CSI-RS resources, wherein the remaining CSI corresponding to the M CSI-RS resources is obtained by the terminal discarding part of the CSI corresponding to the M CSI-RS resources according to the configuration information and the CSI priority corresponding to the M CSI-RS resources.

[0019] In a fifth aspect, an embodiment of the present disclosure provides a communication device, including:

[0020] one or more processors;

[0021] The communication device is configured to implement the method of the first aspect or the second aspect.

[0022] In a sixth aspect, an embodiment of the present disclosure provides a communication system, including a terminal and a network device, wherein:

[0023] The terminal is configured to implement the method according to the first aspect;

[0024] The network device is configured to implement the method according to the second aspect.

[0025] In a seventh aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, wherein:

[0026] When the instructions are executed on the communication device, the communication device is caused to execute the method of the first aspect or the second aspect.

[0027] In an eighth aspect, an embodiment of the present disclosure provides a program product, wherein:

[0028] When the program product is executed by a communication device, the communication device is caused to execute the method of the first aspect or the second aspect.

[0029] In an embodiment of the present disclosure, the terminal obtains the number of CSI-RS resources configured by the network device for CSI reporting based on the configuration information. During the CSI reporting process, the terminal can report according to the CSI priority corresponding to each CSI-RS resource, and discard the CSI corresponding to the CSI-RS resources with low priority. In this way, the CSI can be effectively reported when the uplink transmission resources are limited, and the integrity of the CSI corresponding to at least some of the CSI-RS resources can be guaranteed, thereby ensuring the system performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for describing the embodiments are introduced below. The following drawings are only some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0031] Figure 1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0032] Figure 2 is an exemplary interactive schematic diagram of a method provided according to an embodiment of the present disclosure;

[0033] Figure 3a to Figure 3b is an exemplary flow chart of a method provided according to an embodiment of the present disclosure;

[0034] Figure 4 is an exemplary flow chart of a method provided according to an embodiment of the present disclosure;

[0035] Figure 5a is a structural schematic diagram of a device according to an embodiment of the present disclosure;

[0036] Figure 5b is a structural schematic diagram of a device according to an embodiment of the present disclosure;

[0037] Figure 6a is a schematic diagram of a communication device according to an embodiment of the present disclosure;

[0038] Figure 6b It is a schematic diagram of a communication device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0039] The embodiments of the present disclosure provide a CSI reporting method, a terminal, a network device, and a storage medium.

[0040] In a first aspect, an embodiment of the present disclosure provides a CSI reporting method, which is performed by a terminal, and the method includes:

[0041] receiving configuration information sent by a network device, where the configuration information at least includes a first number M of CSI-RS resources used for reporting channel state information CSI;

[0042] According to the configuration information and the CSI priorities corresponding to the M CSI-RS resources, part of the CSI corresponding to the M CSI-RS resources is discarded;

[0043] Report the remaining CSI corresponding to the M CSI-RS resources to the network device.

[0044] In the above embodiment, the terminal obtains the number of CSI-RS resources configured by the network device for CSI reporting based on the configuration information. During the CSI reporting process, the terminal can report according to the CSI priority corresponding to each CSI-RS resource, and discard the CSI corresponding to the CSI-RS resources with low priority. In this way, the CSI can be effectively reported when the uplink transmission resources are limited, and the integrity of the CSI corresponding to at least some of the CSI-RS resources can be guaranteed, thereby ensuring the system performance.

[0045] In combination with the embodiments of the first aspect, in some embodiments, the CSI corresponding to the M CSI-RS resources includes: a first part Part 1 and a second part Part 2, wherein the CSI corresponding to Part 2 is preferentially discarded when uplink transmission resources are limited.

[0046] In the above embodiment, the terminal may preferentially discard the content in Part 2 to retain the content in Part 1 with a higher priority.

[0047] In combination with the embodiment of the first aspect, in some embodiments, Part 1 includes a wideband (WB) channel quality indicator (CQI) and a subband (SB) CQI of the first TB corresponding to x CSI-RS resources, 0≤x≤M;

[0048] Part 2 includes M CSIs corresponding to M CSI-RS resources.

[0049] In the above embodiment, based on the value of x, the content in Part 1 can be reduced appropriately, thereby reducing the information length of Part 1 and improving the accuracy of decoding Part 1.

[0050] In conjunction with the embodiment of the first aspect, in some embodiments, the parameter M is not configured in the configuration information. R When x=0, the CSI corresponding to each CSI-RS resource in Part 2 includes the following groups:

[0051] Group 1: Group 1 includes the wideband CQI of the first transmission block (TB), or includes the wideband CQI and subband CQI of the first TB;

[0052] Group 2, Group 2 includes the even subband CQI of the first TB;

[0053] Group 3: Group 3 includes odd-numbered subband CQIs of the first TB.

[0054] In the above embodiment, a possible grouping or mapping storage method in Part 2 is illustrated, which is conducive to ensuring the effective reporting of the relevant broadband or sub-band information of the first TB.

[0055] In combination with the embodiment of the first aspect, in some embodiments, the CSI corresponding to each CSI-RS resource in Part 2 includes the following multiple groups:

[0056] Group 1, Group 1 includes Group 0 of broadband information or precoding matrix indication (Precoding Matrix Indication, PMI);

[0057] Group 2, Group 2 includes Group 1 of even subband CSI information or PMI;

[0058] Group 3: Group 3 includes Group 2 of odd subband CSI information or PMI.

[0059] In the above embodiment, another possible grouping or mapping storage method in Part2 is illustrated, and the contents of the corresponding groups in the previous embodiment can be combined. For example, the first group of contents in this embodiment is combined with the first group of contents in the previous embodiment to form the first group of contents, and the second group of contents is combined with the second group of contents in the previous embodiment to form the second group of contents, etc., so that the terminal can discard CSI or report CSI according to the content of Part2 grouping.

[0060] In combination with the embodiment of the first aspect, in some embodiments, the configuration information does not configure the parameter M R When x=N, N>0; or, the parameter M is configured in the configuration information. R And M R >0.

[0061] In the above embodiments, the conditions under which the above grouping or mapping methods can be applied are illustrated.

[0062] In conjunction with the embodiment of the first aspect, in some embodiments, the parameter M is not configured in the configuration information. R When x=N and N>0, Part 1 includes the wideband channel quality indicator CQI and subband CQI of the first TB corresponding to the N CSI-RS resources.

[0063] In the above embodiment, if x is not 0, Part 1 can be used to carry the relevant information of the first TB. While Part 1 carries important information, it can still ensure that the carrying of other content is reduced, thereby reducing the information content of Part 1.

[0064] In combination with the embodiment of the first aspect, in some embodiments, the method further includes:

[0065] According to the first rule, N CSI-RS resources are determined from the M CSI-RS resources.

[0066] In the above embodiment, the terminal may select relevant CSI-RS resources that need to use Part 1 to carry CSI information based on certain rules.

[0067] In conjunction with the embodiments of the first aspect, in some embodiments, the first rule satisfies at least one of the following:

[0068] The first rule is defined by the protocol or configured by the network device;

[0069] The first rule is: select N CSI-RS resources from M CSI-RS resources according to the index or identification order of the CSI-RS resources;

[0070] The first rule is: select N CSI-RS resources from M CSI-RS resources according to a defined or configured metric value.

[0071] In the above embodiment, the terminal can select N CSI-RS resources according to different first rules to improve flexibility.

[0072] In conjunction with the embodiment of the first aspect, in some embodiments, the parameter M is configured in the configuration information. R And M R > 0, in Part 1 and / or Part 2, M R The priority of the CSI corresponding to the CSI-RS resource is greater than (M-M R ) CSI-RS resources corresponding to the CSI priority.

[0073] In the above embodiment, it is shown that M R In the scenario, the priority determination method of CSI corresponding to different CSI-RS resources.

[0074] In conjunction with the embodiments of the first aspect, in some embodiments, x=M R .

[0075] In combination with the embodiment of the first aspect, in some embodiments, the priority of the CSI corresponding to each CSI-RS resource satisfies:

[0076] The CSI priority of the first group>the CSI priority of the second group>the CSI priority of the third group.

[0077] In the above embodiment, for the CSI corresponding to each CSI-RS resource, when discarding, the content of the group with a low priority may be discarded first to ensure system performance.

[0078] In conjunction with the embodiment of the first aspect, in some embodiments, the parameter M is not configured in the configuration information. R When x=0, Part 2 includes:

[0079] Group 0: Group 0 includes the wideband CQI of the first TB, or includes the wideband CQI and subband CQI of the first TB;

[0080] In Part 2, the CSI corresponding to each CSI-RS resource includes the following groups:

[0081] Group 1, Group 1 includes broadband information or Group 0 of PMI;

[0082] Group 2, Group 2 includes Group 1 of even subband CSI information or PMI;

[0083] Group 3: Group 3 includes Group 2 of odd subband CSI information or PMI.

[0084] In the above embodiment, another possible grouping or mapping method of Part 2 is illustrated, where important information can be grouped separately.

[0085] In combination with the embodiment of the first aspect, in some embodiments, the priority of the CSI corresponding to each CSI-RS resource satisfies:

[0086] The CSI priority of the 0th group>the CSI priority of the 1st group>the CSI priority of the 2nd group>the CSI priority of the 3rd group.

[0087] In the above embodiment, it can be ensured that important information with high priority is not discarded, thereby ensuring system performance.

[0088] In combination with the embodiment of the first aspect, in some embodiments, Part 2 includes the following groups:

[0089] Group 1, Group 1 includes wideband CQI and / or wideband information corresponding to M CSI-RS resources, or Group 1 includes Group 0;

[0090] Group 2, where Group 2 includes even subband CQI and / or even subband CSI information corresponding to M CSI-RS resources, or Group 2 includes Group 1;

[0091] Group 3, where Group 3 includes odd subband CQI and / or odd subband CSI information corresponding to M CSI-RS resources, or Group 3 includes Group 2;

[0092] Among them, the parameter M is not configured in the configuration information. R And x=0, or the parameter M is not configured in the configuration information R When x=N, N>0, or the parameter M is configured in the configuration information R And M R ≥0.

[0093] In the above embodiment, the above grouping or mapping manner may also be adopted for different conditions.

[0094] In conjunction with the embodiment of the first aspect, in some embodiments, after configuring the parameter M R And M R When >0, the CSI priority of each group in Part2 satisfies:

[0095] In Group 1, Group 2, or Group 3, M R The CSI priority corresponding to the CSI-RS resource is greater than (M-M R ) CSI priorities corresponding to the CSI-RS resources.

[0096] In the above embodiment, based on the CSI priorities corresponding to different resources, the terminal may preferentially discard the CSI corresponding to the CSI-RS resources with low priorities.

[0097] In combination with the embodiment of the first aspect, in some embodiments, the CSI priority of each group in Part2 is determined according to a second rule, where the second rule is the same as or different from the first rule.

[0098] In the above embodiment, the terminal may determine the priority of the relevant group based on the relevant rules.

[0099] In combination with the embodiment of the first aspect, in some embodiments, the method further includes:

[0100] The priority of CSI reporting corresponding to the M CSI-RS resources is determined according to a second rule, where the second rule is the same as or different from the first rule.

[0101] In the above embodiment, the terminal may determine the priority of the relevant group based on the CSI corresponding to the relevant CSI-RS resource.

[0102] In conjunction with the embodiments of the first aspect, in some embodiments, the second rule satisfies at least one of the following:

[0103] The second rule is: determine the CSI priorities corresponding to the M CSI-RS resources according to the defined or configured metric value;

[0104] The second rule is: determine the CSI priorities corresponding to the M CSI-RS resources according to the order of the indexes or identifiers of the CSI-RS resources;

[0105] The second rule is defined by the protocol or configured by the network device;

[0106] The second rule is: according to the order indicated by each CSI-RS resource in Part 1, determine the CSI priorities corresponding to the M CSI-RS resources.

[0107] In the above embodiment, the terminal can determine the priorities corresponding to different resources based on multiple rules, thereby improving the flexibility in the CSI reporting and discarding process.

[0108] In conjunction with the embodiments of the first aspect, in some embodiments, the metric value is at least one of the following:

[0109] CQI of CSI-RS resources;

[0110] Signal to Interference plus Noise Ratio (SINR) of CSI-RS resources;

[0111] Rank Indication (RI) of CSI-RS resources;

[0112] The PMI of the CSI-RS resource.

[0113] In the above embodiment, the terminal can determine the priority of CSI corresponding to different groups or different CSI-RS resources according to different metric values, so as to retain CSI with better metric values ​​and improve system performance.

[0114] In a second aspect, an embodiment of the present disclosure provides a CSI reporting method, which is performed by a network device, and the method includes:

[0115] Sending configuration information to the terminal, where the configuration information at least includes a first number M of CSI-RS resources used for channel state information CSI reporting;

[0116] The remaining CSI corresponding to the M CSI-RS resources reported by the receiving terminal is obtained by discarding part of the CSI corresponding to the M CSI-RS resources according to the configuration information and the CSI priorities corresponding to the M CSI-RS resources.

[0117] In combination with the embodiments of the second aspect, in some embodiments, the CSI corresponding to the M CSI-RS resources includes: a first part Part 1 and a second part Part 2, wherein the CSI corresponding to Part 2 is preferentially discarded when uplink transmission resources are limited.

[0118] In combination with the embodiment of the second aspect, in some embodiments, Part 1 includes a wideband channel quality indicator CQI and a subband CQI of a first TB corresponding to x CSI-RS resources, 0≤x≤M;

[0119] Part 2 includes M CSIs corresponding to M CSI-RS resources.

[0120] In conjunction with the embodiment of the second aspect, in some embodiments, the parameter M is not configured in the configuration information. R When x=0, the CSI corresponding to each CSI-RS resource in Part 2 includes the following groups:

[0121] Group 1, Group 1 includes the wideband CQI of the first transport block TB, or includes the wideband CQI and subband CQI of the first TB;

[0122] Group 2, Group 2 includes the even subband CQI of the first TB;

[0123] Group 3: Group 3 includes odd-numbered subband CQIs of the first TB.

[0124] In conjunction with the embodiment of the second aspect, in some embodiments, the CSI corresponding to each CSI-RS resource in Part 2 includes the following multiple groups:

[0125] Group 1, Group 1 includes broadband information or Group 0 of PMI;

[0126] Group 2, Group 2 includes Group 1 of even subband CSI information or PMI;

[0127] Group 3: Group 3 includes Group 2 of odd subband CSI information or PMI.

[0128] In conjunction with the embodiment of the second aspect, in some embodiments, the parameter M is not configured in the configuration information. R When x=N, N>0; or, the parameter M is configured in the configuration information. R And MR >0.

[0129] In conjunction with the embodiment of the second aspect, in some embodiments, the parameter M is not configured in the configuration information. R When x=N and N>0, Part 1 includes the wideband channel quality indicator CQI and subband CQI of the first TB corresponding to the N CSI-RS resources.

[0130] In combination with the embodiments of the second aspect, in some embodiments, the N CSI-RS resources are determined among the M CSI-RS resources according to a first rule.

[0131] In conjunction with the embodiments of the second aspect, in some embodiments, the first rule satisfies at least one of the following:

[0132] The first rule is defined by the protocol or configured by the network device;

[0133] The first rule is: select N CSI-RS resources from M CSI-RS resources according to the index or identification order of the CSI-RS resources;

[0134] The first rule is: select N CSI-RS resources from M CSI-RS resources according to a defined or configured metric value.

[0135] In conjunction with the embodiment of the second aspect, in some embodiments, the parameter M is configured in the configuration information. R And M R > 0, in Part 1 and / or Part 2, M R The priority of the CSI corresponding to the CSI-RS resource is greater than (M-M R ) CSI-RS resources corresponding to the CSI priority.

[0136] In conjunction with the embodiments of the second aspect, in some embodiments, x=M R .

[0137] In conjunction with the embodiment of the second aspect, in some embodiments, the priority of the CSI corresponding to each CSI-RS resource satisfies:

[0138] The CSI priority of the first group>the CSI priority of the second group>the CSI priority of the third group.

[0139] In conjunction with the embodiment of the second aspect, in some embodiments, the parameter M is not configured in the configuration information. R When x=0, Part 2 includes:

[0140] Group 0: Group 0 includes the wideband CQI of the first TB, or includes the wideband CQI and subband CQI of the first TB;

[0141] In Part 2, the CSI corresponding to each CSI-RS resource includes the following groups:

[0142] Group 1, Group 1 includes broadband information or Group 0 of PMI;

[0143] Group 2, Group 2 includes Group 1 of even subband CSI information or PMI;

[0144] Group 3: Group 3 includes Group 2 of odd subband CSI information or PMI.

[0145] In conjunction with the embodiment of the second aspect, in some embodiments, the priority of the CSI corresponding to each CSI-RS resource satisfies:

[0146] The CSI priority of the 0th group>the CSI priority of the 1st group>the CSI priority of the 2nd group>the CSI priority of the 3rd group.

[0147] In conjunction with the embodiment of the second aspect, in some embodiments, Part 2 includes the following groups:

[0148] Group 1, Group 1 includes wideband CQI and / or wideband information corresponding to M CSI-RS resources, or Group 1 includes Group 0;

[0149] Group 2, where Group 2 includes even subband CQI and / or even subband CSI information corresponding to M CSI-RS resources, or Group 2 includes Group 1;

[0150] Group 3, where Group 3 includes odd subband CQI and / or odd subband CSI information corresponding to M CSI-RS resources, or Group 3 includes Group 2;

[0151] Among them, the parameter M is not configured in the configuration information. R And x=0, or the parameter M is not configured in the configuration information R When x=N, N>0, or the parameter M is configured in the configuration information R And M R ≥0.

[0152] In conjunction with the embodiment of the second aspect, in some embodiments, after configuring the parameter M R And M R When >0, the CSI priority of each group in Part2 satisfies:

[0153] In Group 1, Group 2, or Group 3, M R The CSI priority corresponding to the CSI-RS resource is greater than (M-M R) CSI priorities corresponding to the CSI-RS resources.

[0154] In combination with the embodiments of the second aspect, in some embodiments, the CSI priority of each group in Part 2 is determined according to a second rule, where the second rule is the same as or different from the first rule.

[0155] In combination with the embodiments of the second aspect, in some embodiments, the priority of CSI reporting corresponding to the M CSI-RS resources is determined according to a second rule, where the second rule is the same as or different from the first rule.

[0156] In conjunction with the embodiments of the second aspect, in some embodiments, the second rule satisfies at least one of the following:

[0157] The second rule is: determine the CSI priorities corresponding to the M CSI-RS resources according to the defined or configured metric value;

[0158] The second rule is: determine the CSI priorities corresponding to the M CSI-RS resources according to the order of the indexes or identifiers of the CSI-RS resources;

[0159] The second rule is defined by the protocol or configured by the network device;

[0160] The second rule is: according to the order indicated by each CSI-RS resource in Part 1, determine the CSI priorities corresponding to the M CSI-RS resources.

[0161] In conjunction with the embodiments of the second aspect, in some embodiments, the metric value is at least one of the following:

[0162] CQI of CSI-RS resources;

[0163] The signal-to-noise-interference ratio (SINR) of the CSI-RS resource;

[0164] Rank indication RI of CSI-RS resources;

[0165] The PMI of the CSI-RS resource.

[0166] In a third aspect, an embodiment of the present disclosure provides a terminal, including:

[0167] A transceiver module, configured to receive configuration information sent by a network device, where the configuration information at least includes a first number M of CSI-RS resources used for reporting channel state information CSI;

[0168] A processing module, configured to discard part of the CSI corresponding to the M CSI-RS resources according to the configuration information and the CSI priorities corresponding to the M CSI-RS resources;

[0169] The transceiver module is further used to report the remaining CSI corresponding to the M CSI-RS resources to the network device.

[0170] In a fourth aspect, an embodiment of the present disclosure provides a network device, including:

[0171] A transceiver module, configured to send configuration information to a terminal, where the configuration information at least includes a first number M of CSI-RS resources used for reporting channel state information CSI;

[0172] The transceiver module is also used to receive the remaining CSI corresponding to M CSI-RS resources, wherein the remaining CSI corresponding to the M CSI-RS resources is obtained by the terminal discarding part of the CSI corresponding to the M CSI-RS resources according to the configuration information and the CSI priority corresponding to the M CSI-RS resources.

[0173] In a fifth aspect, an embodiment of the present disclosure provides a communication device, including:

[0174] one or more processors;

[0175] The communication device is configured to implement the method of the first aspect or the second aspect.

[0176] In a sixth aspect, an embodiment of the present disclosure provides a communication system, including a terminal and a network device, wherein:

[0177] The terminal is configured to implement the method according to the first aspect;

[0178] The network device is configured to implement the method according to the second aspect.

[0179] In a seventh aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, wherein:

[0180] When the instructions are executed on the communication device, the communication device is caused to execute the method of the first aspect or the second aspect.

[0181] In an eighth aspect, an embodiment of the present disclosure provides a program product, wherein:

[0182] When the program product is executed by a communication device, the communication device is caused to execute the method of the first aspect or the second aspect.

[0183] In a ninth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.

[0184] In a tenth aspect, an embodiment of the present disclosure provides a chip or a chip system. The chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0185] It is understandable that the above-mentioned terminal, storage medium, program product, computer program, chip or chip system are all used to execute the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method, which will not be repeated here.

[0186] The embodiments of the present disclosure are not exhaustive, but are only illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined, for example, some or all of the steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0187] In each embodiment of the present disclosure, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between the embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form a new embodiment based on their internal logical relationships.

[0188] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0189] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular form, such as "a", "an", "the", "above", "said", "aforementioned", "this", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun after the article may be understood as a singular expression or a plural expression.

[0190] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0191] In some embodiments, the terms “at least one,” “one or more,” “a plurality of,” “multiple,” etc. may be used interchangeably.

[0192] In some embodiments, "at least one of A and B", "A and / or B", "A in one case, B in another case", "in response to one case A, in response to another case B", etc., may include the following technical solutions according to the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). When there are more branches such as A, B, C, etc., the above is also similar.

[0193] In some embodiments, the recording method of "A or B" may include the following technical solutions according to the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). When there are more branches such as A, B, C, etc., the above is also similar.

[0194] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects, and do not constitute restrictions on the position, order, priority, quantity or content of the description objects. The statement of the description object refers to the description in the context of the claims or embodiments, and should not constitute unnecessary restrictions due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields", and the "first" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number, and can be one or more. Taking the "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes may be the same or different. For example, if the description object is "device", then the "first device" and the "second device" may be the same device or different devices, and their types may be the same or different. For another example, if the description object is "information", then the "first information" and the "second information" may be the same information or different information, and their contents may be the same or different.

[0195] In some embodiments, “including A”, “comprising A”, “used to indicate A”, and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0196] In some embodiments, terms such as "in response to ...", "in response to determining ...", "in the case of ...", "at the time of ...", "when ...", "if ...", "if ...", etc. can be used interchangeably.

[0197] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not lower than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "no more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0198] In some embodiments, devices and equipment may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0199] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0200] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station (radio base station)", "fixed station (fixed station)", and in some embodiments may also be understood as "node (node)", "access point (access point)", "transmission point (TP)", "reception point (reception point, RP)", "transmission and / or reception point (transmission / reception point, TRP)"", "panel (panel)", "antenna panel (antenna panel)", "antenna array (antenna array)"", "cell (cell)", "macro cell (macro cell)", "small cell (small cell)", "femto cell (femto cell)", "pico cell (pico cell)", "sector (sector)", "cell group (cell group)", "serving cell (serving cell)", "carrier (carrier)", "component carrier (component carrier)", "bandwidth part (bandwidth part, BWP)" and the like.

[0201] In some embodiments, "terminal" or "terminal device" can be referred to as "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.

[0202] In some embodiments, acquisition of data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0203] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0204] In addition, each element, each row, or each column in the table of the embodiments of the present disclosure may be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns may also be implemented as an independent embodiment.

[0205] Figure 1 It is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0206] like Figure 1 As shown, the communication system 100 includes a terminal 101 and a network device 102. Among them, the terminal 101 can be a UE, and the network device 102 can be a base station gNB.

[0207] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited to these.

[0208] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0209] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (CloudRAN), a base station in other communication systems, and at least one of an access node in a wireless fidelity (WiFi) system, but is not limited thereto.

[0210] In some embodiments, the technical solution of the present disclosure may be applicable to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure may become internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces may be implemented through software or programs.

[0211] In some embodiments, the access network device may be composed of a centralized unit (central unit, CU) and a distributed unit (distributed unit, DU), wherein the CU may also be referred to as a control unit (control unit). The CU-DU structure may be used to split the protocol layer of the access network device, with some functions of the protocol layer being centrally controlled by the CU, and the remaining part or all of the functions of the protocol layer being distributed in the DU, and the DU being centrally controlled by the CU, but not limited to this.

[0212] In some embodiments, the core network device may be a device including one or more network elements, or may be a plurality of devices or a group of devices, each including all or part of one or more network elements. The network element may be virtual or physical. The core network may include, for example, at least one of the Evolved Packet Core (EPC), the 5G Core Network (5G CN), and the Next Generation Core (NGC). Alternatively, the core network device refers to a network element with a specific function, such as an Access Management Function (AMF), a Service Management Function (SMF), and the like.

[0213] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. A person skilled in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0214] The following embodiments of the present disclosure can be applied to Figure 1 The communication system 100, or a portion thereof, is shown but is not limited thereto.

[0215] Figure 1 The various entities shown are examples, and the communication system may include Figure 1 All or part of the subject, and may also include Figure 1For entities other than the above, the number and form of each entity are arbitrary, and the connection relationship between the entities is an example. The entities may be connected or disconnected, and the connection may be in any manner, which may be direct or indirect, and may be wired or wireless.

[0216] The embodiments of the present disclosure may be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) network, Device-to-Device (D2D) system, Machine-to-Machine (M2M) system, Internet of Things (IoT) system, Vehicle-to-Everything (V2X), systems using other communication processing methods, and next-generation systems based on them. In addition, multiple systems can also be combined (for example, a combination of LTE or LTE-A and 5G, etc.) for application.

[0217] For CSI reporting, the gNB can configure the CSI reporting amount to be reported for the UE through signaling. The CSI reporting amount includes at least one or more of CSI-RS Resource Indication (CRI), Layer Indicator (LI), Rank Indication (RI), Channel Quality Indicator (CQI) and / or Precoding Matrix Indication (PMI).

[0218] In conventional CSI feedback based on a first type (Type I) or second type (Type II) codebook, the CSI reporting amount can be divided into two parts: Part 1 and Part 2.

[0219] For example, the CSI report based on the Release 15 (Rel-15) Type I single-panel codebook includes two parts: Part 1 and Part 2. Part 1 includes at least one or more information of RI, CRI and CQI of the first codeword; Part 2 includes at least one or more information of PMI, LI and CQI of the second codeword. The PMI may include two types of information: broadband feedback information i1 and subband feedback information i2. When the uplink transmission resources are insufficient, part of the information in Part 2 needs to be discarded. The information in Part 2 can be divided into three groups, such as the first group, the second group and the third group.

[0220] For another example, the CSI report based on the Rel-16 enhanced eType II codebook includes two parts, Part 1 and Part 2. Part 1 includes at least one or more of RI, CQI and the non-zero coefficient indication (Number Non-zero Coefficient, NNZC) indication information of all layers; Part 2 includes PMI information, which can be divided into three groups such as Group 0, Group 1 and Group 2.

[0221] In order to further improve system efficiency or enhance coverage, the antenna scale can be expanded by increasing the number of antenna ports. For example, it is necessary to support 64 or 128 CSI-RS ports to implement channel measurement for 64 or 128 antenna ports. Due to the larger number of ports, the number of users accessing the network is also greater. Accordingly, the network requires the terminal to feedback more CSI for multi-user scheduling to improve system performance. Among them, the acquisition of CRI, LI, RI, CQI or PMI in each CSI reporting amount is calculated based on independent CSI-RS resources, and the corresponding CSI-RS resources are indicated by CRI. The CSI measured by the UE based on the resources indicated by the CRI can report the CSI through the traditional Rel-15 Type I single-panel codebook or the Rel-16eType II codebook.

[0222] According to the above content, the CSI reported based on the Rel-15 Type I single-panel codebook or the Rel-16eType II codebook is divided into Part 1 and Part 2. When CRI>1, it is necessary to report the Part 1 and Part 2 contents corresponding to multiple resources. If these CSI contents are reported through one CSI, correspondingly, it is necessary to store the CSI corresponding to multiple different CSI-RS resources in one CSI report. When some CSI is discarded, different discarding methods and storage methods will affect the system performance. How to store these CSI contents and ensure that a certain system performance can be guaranteed when some CSI is discarded is a problem to be solved.

[0223] In one possible approach, whether the network is configured with parameter M R The CSI corresponding to the reported M CSI-RS resources, the CSI corresponding to each resource included in Part 1 and Part 2 and the mapping order can be referred to as follows:

[0224] (1) Do not configure M R The CSI mapping order in Part 1 is defined as follows: Multiple CRI (M-CRI) reporting for up to 128 CSI-RS ports. If M is not supported R Channel Measurement Resource (CMR) pre-configuration, the following mapping order can be considered:

[0225] Mapping order 1-1:1 st CRI->2 nd CRI->……->M th CRI->1 st RI->2 nd RI->……->M thRI->1 st WB CQI for TB 1->2 nd WB CQI for TB 1->...->M th WB CQI for TB 1->1 st SB CQI for TB 1->2 nd SB CQI for TB 1->……->M th SB CQI for TB 1->K NZ,0 ->K NZ,1 ->…->K NZ,M-1 ; Wherein, NZ represents a non-zero coefficient. Wherein, the first information or the first indication information in the sequence is located at the highest or lowest bit.

[0226] Mapping order 1-2: 1 st CRI->1 st RI->1 st WB CQI for TB 1->1 st SB CQI for TB 1->K NZ ,0 ->2 nd CRI->2 nd RI->2 nd WB CQI for TB 1->2 nd SB CQI for TB 1->K NZ,1 ……->M th CRI->M th RI->M th WB CQI for TB 1->M th SB CQI for TB 1->K NZ,M-1 Among them, the first information in the sequence or the first indication information is located at the highest or lowest bit.

[0227] (2)Configure M R The CSI mapping order definition in Part 1 when : M-CRI report for up to 128 CSI-RS ports, if M is supported R If CMRs are preconfigured, the following mapping order can be considered:

[0228] Mapping order 2-1:1 st CRI->2 nd CRI->……->(MM R ) th CRI->1 st RI->2 nd RI->……->M thRI->1 st WB CQI for TB 1->2 nd WB CQI for TB 1->...->M th WB CQI for TB 1->1 st SBCQI for TB 1->2 nd SB CQI for TB 1->...->M th SB CQI for TB 1->K NZ,0 ->K NZ,1 ->……->K NZ,M-1 ; Among them, the first indication information is located at the highest or lowest bit.

[0229] Mapping order 2-2:1 st RI->1 st WB CQI for TB 1->1 st SB CQI for TB 1->K NZ,0 ->2 nd RI->2 nd WB CQI for TB 1->2 nd SB CQI for TB 1->K NZ,1 ->……->(MM R +1) th CRI->(MM R +1) th RI->(MM R +1) th WB CQI for TB 1->(MM R +1) th SB CQI for TB 1->K NZ,(M-MR+1) ……->M th CRI->M th RI->M th WB CQI for TB 1->M th SB CQI for TB 1->K NZ,M-1 ; Among them, the first indication information is located at the highest or lowest bit.

[0230] (3) Omission method for CSI reporting Part 2 based on Rel-15 Type I codebook: For M-CRI reporting of up to 128 CSI-RS ports, the following omission priorities can be considered in CSI Part II based on Type I codebook:

[0231] Omission 1-1: Part II WB for M CRIs->Part II even SB 1 st CRI->…Part II SB’s M th CRI->Part II odd SB 1 st CRI->…Part II Odd SB M th CRI; the first indication information is located at the highest or lowest bit.

[0232] Omission 1-2: Part II WB for M CRIs -> Part II 1st CRI for even SBs -> … Part II M for even SBs th CRI->Part II Odd SB 1 st CRI->…Part II Odd SB M th CRI; the first indication information is located at the highest or lowest bit.

[0233] (4) Discarding method for CSI reporting Part 2 based on Rel-16e Type II codebook: For M-CRI reports of up to 128 CSI-RS ports, the following discarding priorities can be used in CSI Part II based on Type II codebook:

[0234] Omission 2-1:

[0235] Priority 0: Group 0 corresponds to 1 st CRI, Group 0 corresponds to 2 nd CRI,…,Group 0 corresponds to M st CRI;

[0236] Priority 1: Group 1 corresponds to 1 st CRI;…

[0237] Priority M: Group 1 corresponds to M th CRI;

[0238] Priority M+1: Group 2 corresponds to 1st CRI;…

[0239] Priority 2M: Group 2 corresponds to M th CRI;

[0240] Omission 2-2:

[0241] Priority 0: Group 0 corresponds to 1 st CRI, Group 0 corresponds to 2 nd CRI,…,Group 0 corresponds to M st CRI;

[0242] Priority 1: Group 1 corresponds to 1 st CRI;

[0243] Priority 2: Group 2 corresponds to 1 st CRI;…

[0244] Priority 2M-1: Group 1 corresponds to M th CRI;

[0245] Priority 2M: Group 2 corresponds to M th CRI.

[0246] There are two problems in the above possible methods: First, the CSI of M resources is included in Part 1, which may increase the information length in Part 1 and affect the accuracy of Part 1 decoding. Second, in the discard priority mentioned in the above method, when CSI discard occurs, the definition of discard priority may cause the CSI corresponding to each resource to be incomplete, that is, part of the CSI corresponding to each resource will be discarded.

[0247] Figure 2 FIG. 1 is an interactive diagram of a CSI reporting method shown in an embodiment of the present disclosure. Figure 2 As shown, the embodiment of the present disclosure relates to a CSI reporting method, the method comprising:

[0248] Step S2101, the network device 102 sends configuration information to the terminal 101.

[0249] In some embodiments, the configuration information includes at least a first number M of CSI-RS resources used for CSI reporting.

[0250] In some embodiments, the configuration information includes the above-mentioned first number M, and a second number Ks of CSI-RS resources used for downlink channel measurement, where M≤Ks.

[0251] In some embodiments, the configuration information may further include a CSI reporting amount. For example, the configuration information is used to configure the CSI reporting amount to include at least one or more of the following: CRI, LI, RI, CQI, PMI.

[0252] In some embodiments, when CRI>, M>0, that is, the network device 102 can configure the terminal 101 to report the CSI corresponding to multiple CSI-RS resources.

[0253] In some embodiments, the terminal 101 receives the above configuration information and can obtain relevant configurations of CSI reporting based on the configuration information.

[0254] Step S2102: Terminal 101 determines the CSI priorities corresponding to M CSI-RS resources.

[0255] In some embodiments, the CSI priority corresponding to the M CSI-RS resources is the priority between the CSIs corresponding to the M CSI-RS resources, or in other words, the priority of the CSI reporting corresponding to the M CSI-RS resources.

[0256] The CSI priorities corresponding to the M CSI-RS resources include: the CSI priority corresponding to each CSI-RS resource in the M CSI-RS resources. For example, the terminal 101 determines the CSI priority of the CSI corresponding to each CSI-RS resource for the M CSIs corresponding to the M CSI-RS resources involved in the CSI reporting, so that the CSI priority order corresponding to the M CSIs can be determined, so as to facilitate CSI discarding with reference to the priority when executing step S2103.

[0257] In some embodiments, the higher the CSI priority, the more priority is given to CSI reporting; the lower the CSI priority, the more priority is given to discarding when discarding is involved. For example, when the uplink transmission resources are limited or insufficient in step S2103, the CSI corresponding to the CSI-RS resources with low CSI priority is discarded first.

[0258] It can be understood that when reporting CSI, the terminal 101 can report it through uplink control information (UCI). For example, the CSI corresponding to M CSI-RS resources is mapped to UCI. Therefore, CSI can also be called UCI, UCI parameter, UCI parameter information, UCI information content, etc. This embodiment does not limit this.

[0259] In some embodiments, the CSI corresponding to the M CSI-RS resources includes: a first part Part 1 and a second part Part 2, wherein the CSI corresponding to Part 2 is preferentially discarded when uplink transmission resources are limited.

[0260] In the process of sending the CSI corresponding to the M CSI-RS resources through one CSI report, the CSI corresponding to the M CSI-RS resources may be divided into two parts. Part 1 may also be recorded as Part I, and Part 2 may also be recorded as Part II.

[0261] In some embodiments, the CSI corresponding to each of the M CSI-RS resources also involves different CSI priorities. For example, Part 2 can be divided into multiple groups using different grouping methods. For details, see the description of the following embodiments.

[0262] In some embodiments, the terminal 101 may perform step S2102 according to the first rule or the second rule, wherein the second rule is the same as or different from the first rule. Taking the second rule as an example, the terminal 101 may determine the CSI priorities corresponding to the M CSI-RS resources according to the second rule.

[0263] In some embodiments, the second rule satisfies at least one of the following:

[0264] The second rule is: determine the CSI priorities corresponding to the M CSI-RS resources according to the defined or configured metric value;

[0265] The second rule is: determine the CSI priorities corresponding to the M CSI-RS resources according to the order of the indexes or identifiers of the CSI-RS resources;

[0266] The second rule is defined by the protocol or configured by the network device;

[0267] The second rule is: according to the order indicated by each CSI-RS resource in Part 1, determine the CSI priorities corresponding to the M CSI-RS resources.

[0268] Optionally, the terminal 101 may determine the CSI priorities corresponding to the M CSI-RS resources according to any of the above second rules, such as the CSI priority order of the M CSIs corresponding to the M CSI-RS resources respectively.

[0269] Optionally, the metric value is at least one of the following: CQI of the CSI-RS resource; signal-to-noise-and-interference ratio SINR of the CSI-RS resource; rank indication RI of the CSI-RS resource; PMI of the CSI-RS resource.

[0270] The CSI priorities corresponding to the M CSI-RS resources or the CSI priority order corresponding to the M CSI-RS resources may be determined based on any one or more of the above metrics. For example:

[0271] In one example, taking the metric value as CQI as an example, the CSI with a larger CQI has a higher priority. Among the CSIs corresponding to the M CSI-RS resources, assuming that the CQI corresponding to the first CSI-RS resource is greater than the CQI corresponding to the second CSI-RS resource, the CSI priority corresponding to the first CSI-RS resource is higher than the CSI priority corresponding to the second CSI-RS resource, and when discarding is involved in step S2103, the CSI corresponding to the second CSI-RS resource can be discarded first.

[0272] Optionally, the order of the index or ID is associated with the CSI priority order. For example, as the index or ID increases, the CSI priority decreases one by one. Alternatively, as the index or ID increases, the CSI priority increases one by one.

[0273] In one example, assuming that the index of the first CSI-RS resource is ID1 and the index of the second CSI-RS resource is ID2, the CSI priority corresponding to the first CSI-RS resource is higher than the CSI priority corresponding to the second CSI-RS resource. When discarding is involved in step S2103, the CSI corresponding to the second CSI-RS resource can be discarded first.

[0274] Optionally, the CSI priorities corresponding to the M CSI-RS resources may also be determined according to the mapping order of the CSI-RS resource indication CRI in part 1.

[0275] Optionally, the network device 102 may instruct the terminal 101 which second rule to adopt.

[0276] In step S2103, the terminal 101 discards part of the CSI corresponding to the M CSI-RS resources according to the configuration information and the CSI priorities corresponding to the M CSI-RS resources.

[0277] The terminal 101 may discard CSI when uplink transmission resources are limited, such as discarding part of CSI corresponding to M CSI-RS resources according to configuration information and CSI priorities corresponding to M CSI-RS resources when uplink transmission resources are limited.

[0278] In some embodiments, the terminal 101 may obtain the value of M based on the configuration information and may also obtain the CSI reporting amount.

[0279] In some embodiments, when the second rule is configured for the network device 102, the terminal 101 can also learn the second rule based on the configuration information, and further learn the CSI priorities corresponding to the M CSI-RS resources.

[0280] In some embodiments, the relevant description of the CSI priorities corresponding to the M CSI-RS resources may refer to the description in step S2102.

[0281] In one example, in step S2103, if the uplink transmission resources are limited or insufficient, when the terminal 101 discards among the CSIs corresponding to the M CSI-RS resources, it may discard according to the CSI priorities corresponding to the respective CSI-RS resources described in step S2103. For example, it discards the CSI corresponding to the CSI-RS resource with a low CSI priority.

[0282] In another example, in step S2103, if the uplink transmission resources are limited or insufficient, the terminal 101 may partially discard the content of the CSI corresponding to a certain CSI-RS resource. For example, it may discard the CSI content in the group with a low CSI priority according to the CSI priorities of each group in Part2 of the CSI corresponding to the one CSI-RS resource.

[0283] Combining the above examples, discarding some of the CSIs corresponding to the M CSI-RS resources may be discarding some of the CSIs corresponding to some of the M CSI-RS resources, where some of the CSI-RS resources are, for example, the CSI-RS resources with a low CSI priority. Or, discarding some of the CSIs corresponding to the M CSI-RS resources may be discarding some of the CSIs corresponding to all of the M CSI-RS resources, for example, discarding some of the CSIs corresponding to the CSI-RS resources with a low CSI priority.

[0284] In some embodiments, for the convenience of understanding the discarding method, the following embodiments describe the content, grouping method, or the CSI storage mapping method, etc. of the CSIs corresponding to the M CSI-RS resources.

[0285] In some embodiments, in combination with the description of the foregoing embodiments, the CSIs corresponding to the M CSI-RS resources include: Part1 and Part2. Part1 includes the wideband channel quality indicator (CQI) and sub-band CQI of the first transport block (TB) corresponding to x CSI-RS resources, where 0 ≤ x ≤ M; Part2 includes the M CSIs corresponding to the M CSI-RS resources.

[0286] Among them, x is used to represent that the terminal 101 needs to report the wideband CQI of the first TB corresponding to x CSI-RS resources, and the sub-band CQI of the first TB corresponding to x CSI-RS resources. In the embodiments of the present disclosure, take the scenario where Part1 only contains the wideband CQI of the first TB corresponding to 0 ≤ x < M CSI-RS resources, and the sub-band CQI of the first TB corresponding to 0 ≤ x < M CSI-RS resources as an example.

[0287] In the first implementation mode, this implementation mode is applicable to the configuration information where the parameter M is not configured. R And x = 0. Among them, M R It can be used to indicate the number of CSI-RS resources that need to be reported among the M CSI-RS resources indicated by the network device 102 .

[0288] The CSI corresponding to the M CSI-RS resources includes: Part 1 and Part 2. When x=0, Part 1 does not include the wideband CQI and subband CQI of the first TB. The wideband CQI of the first TB and the subband CQI of the first TB will be included in Part 2.

[0289] In this implementation manner, the CSI corresponding to each CSI-RS resource in Part 2 includes the following multiple groups:

[0290] Group 1, Group 1 includes the wideband CQI of the first transport block TB, or Group 1 includes the wideband CQI of the first TB and the subband CQI of the first TB;

[0291] Group 2, when Group 1 does not include the subband CQI of the first TB, Group 2 includes the even subband CQI of the first TB;

[0292] Group 3: Group 3 includes odd-numbered subband CQIs of the first TB.

[0293] Among them, in Part 2 of the CSI corresponding to M CSI-RS resources, according to different CSI-RS resources, the three groups of content corresponding to a single CSI-RS resource are respectively mapped to Part 2. For example, Part 2 includes: 3 groups of content corresponding to the first CSI-RS resource, 3 groups of content corresponding to the second CSI-RS resource... 3 groups of content corresponding to the Mth CSI-RS resource. Among them, the above CSI storage mapping grouping method can be applied to each CSI-RS resource.

[0294] Among them, each of the above groups may also include other contents.

[0295] For example, in Part 2, the CSI corresponding to each CSI-RS resource includes the following groups:

[0296] Group 1, Group 1 includes the wideband CQI of the first transport block TB, or Group 1 includes the wideband CQI and subband CQI of the first TB; for CSI reporting based on Rel-15 Type I codebook, Group 1 may also include wideband information; or, for CSI reporting based on Rel-16eType II codebook, Group 1 may also include Group 0 of precoding matrix indication PMI;

[0297] Group 2, when Group 1 does not include the subband CQI of the first TB, Group 2 includes the even subband CQI of the first TB; for CSI reporting based on Rel-15 Type I codebook, Group 2 may also include even subband CSI information; or for CSI reporting based on Rel-16e Type II codebook, Group 2 may also include Group 1 of PMI;

[0298] Group 3, when Group 1 does not include the subband CQI of the first TB, Group 3 includes the odd subband CQI of the first TB; for CSI reporting based on Rel-15 Type I codebook, Group 3 may also include odd subband CSI information; or, for CSI reporting based on Rel-16eType II codebook, Group 3 may also include Group 2 of PMI.

[0299] In this implementation, the priority of the CSI corresponding to each CSI-RS resource satisfies: CSI priority of group 1>CSI priority of group 2>CSI priority of group 3. Based on this priority order, in a scenario involving CSI discard, the terminal 101 may preferentially discard CSI of group 3.

[0300] For the first implementation, combined with the description of the above embodiment, a specific example is listed below:

[0301] Example 1

[0302] Assume that the network device 102 configures Ks=4 CSI-RS resources for the terminal 101 through configuration information, and also configures the terminal 101 to report the CSI of M=3 CSI-RS resources, and the codebook type configured for the terminal 101 is Rel-15 Type I SPcodebook. The CSI corresponding to the M=3 CSI-RS resources is reported in two parts, Part 1 and Part 2. Among them, Part 1 includes: M CRIs and M RIs. Assume that x=0, that is, Part 1 does not include the broadband CQI of the first TB and the subband CQI of the first TB corresponding to each CSI-RS resource. Part 2 includes: PMI corresponding to M CSI-RS resources, broadband CQI and subband CQI of the first TB corresponding to the M CSI-RS resources, broadband CQI and subband CQI of the second TB, and LI corresponding to M CSI-RS resources.

[0303] The CSI corresponding to each CSI-RS resource in Part 2 can be divided into three groups:

[0304] The first group includes: the wideband CQI and subband CQI of the first TB, the wideband CQI and subband CQI of the second TB, the indication information related to the wideband i1 in the PMI, and the LI;

[0305] The second group includes: the even subband CQI of the second TB, and the indication information related to the even subband i2 in the PMI;

[0306] The third group includes: the odd subband CQI of the second TB, and the indication information related to the odd subband i2 in the PMI.

[0307] In this example, the CSI priorities corresponding to the three CSI-RS resources can be based on a metric such as CQI. Assume that the terminal 101 calculates that among M=3 CSI-RS resources, the broadband CQI of the first TB corresponding to the third CSI-RS resource is the largest, and the broadband CQI of the first TB corresponding to the second CSI-RS resource is the smallest. Then the CSI priorities of the three resources are defined as:

[0308] The CSI corresponding to the third CSI-RS resource>the CSI corresponding to the first CSI-RS resource>the CSI corresponding to the second CSI-RS resource.

[0309] In this example, the priority in each CSI-RS resource satisfies: CSI priority of group 1 > CSI priority of group 2 > CSI priority of group 3, where “>” means that the priority is greater than or higher than, such as the CSI priority of group 1 > CSI priority of group 2 mentioned above, which can indicate that the CSI priority of group 1 is higher than the CSI priority of group 2.

[0310] In the second implementation mode, this implementation mode is applicable to the configuration information where the parameter M is not configured. R And x=0. The meaning of the parameters can refer to the previous embodiment. The difference between this embodiment and the previous embodiment lies in the different grouping or mapping manner of CSI.

[0311] The CSI corresponding to the M CSI-RS resources still includes: Part 1 and Part 2. When x=0, Part 1 does not include the wideband CQI and subband CQI of the first TB. The wideband CQI of the first TB and the subband CQI of the first TB will be included in Part 2.

[0312] In this implementation, Part 2 includes:

[0313] Group 0: Group 0 includes the wideband CQI of the first TB, or includes the wideband CQI and subband CQI of the first TB;

[0314] In Part 2, the CSI corresponding to each CSI-RS resource includes the following groups:

[0315] Group 1, Group 1 includes broadband information or Group 0 of PMI;

[0316] Group 2, Group 2 includes Group 1 of even subband CSI information or PMI;

[0317] Group 3: Group 3 includes Group 2 of odd subband CSI information or PMI.

[0318] The broadband information may include broadband CQI, broadband LI, etc. In combination with the description of the foregoing embodiment, the "or" in each group is related to the configured codebook type, such as when reporting based on Type I codebook, Group 1 may include broadband information; when reporting based on Type 2 codebook, Group 1 may include Group 0 of PMI; the following embodiments may refer to the description here.

[0319] In one example, in Part 2 of the CSI corresponding to M CSI-RS resources, according to different CSI-RS resources, 4 groups of content corresponding to a single CSI-RS resource are respectively mapped to Part 2. For example, Part 2 includes: 4 groups of content corresponding to the first CSI-RS resource, 4 groups of content corresponding to the second CSI-RS resource... 4 groups of content corresponding to the Mth CSI-RS resource.

[0320] In another example, for the purpose of giving priority to sending group 0, Part 2 of the CSI corresponding to M CSI-RS resources may include: group 0, other 3 groups of content other than group 0 corresponding to the first CSI-RS resource, other 3 groups of content other than group 0 corresponding to the second CSI-RS resource... other 3 groups of content other than group 0 corresponding to the Mth CSI-RS resource. In this example, group 0 includes the wideband CQI and subband CQI of the first TB corresponding to the M resources, or group 0 includes the wideband CQI corresponding to the M resources.

[0321] In this example, the mapping order of the first TBs of the M CSI-RS resources in group 0 may be determined with reference to the second rule, such as one or more of the CSI priority determination methods corresponding to the above-mentioned M CSI-RS resources.

[0322] In this implementation manner, the priority of the CSI corresponding to each CSI-RS resource satisfies: the CSI priority of the 0th group> the CSI priority of the 1st group> the CSI priority of the 2nd group> the CSI priority of the 3rd group.

[0323] Among them, for the example in which group 0 includes the wideband CQI and subband CQI of the first TB corresponding to M resources, or group 0 includes the wideband CQI corresponding to M resources, the priority still satisfies: CSI priority of group 0 > CSI priority of group 1 > CSI priority of group 2 > CSI priority of group 3.

[0324] For the second implementation, in combination with the description of the above embodiment, a specific example is listed below:

[0325] Example 2

[0326] Combined with the scenario of Example 1 in the first implementation mode, for example, the network device 102 configures Ks=4 CSI-RS resources for the terminal 101 through configuration information, and also configures the terminal 101 to report the CSI of M=3 CSI-RS resources, and the codebook type configured for the terminal 101 is Rel-15Type I SP codebook. The CSI corresponding to the M=3 CSI-RS resources is reported in two parts, Part 1 and Part 2. Among them, Part 1 includes: M CRIs and M RIs. Assume that x=0, that is, Part 1 does not include the broadband CQI of the first TB and the subband CQI of the first TB corresponding to each CSI-RS resource. Part 2 includes: PMI corresponding to M CSI-RS resources, broadband CQI and subband CQI of the first TB corresponding to the M CSI-RS resources, broadband CQI and subband CQI of the second TB, and LI corresponding to M CSI-RS resources.

[0327] Part 2 can be divided into four groups:

[0328] Group 0: contains the wideband CQI and subband CQI of the first TB corresponding to the M resources.

[0329] The CSI corresponding to each CSI-RS resource in Part 2 can be divided into the following three groups:

[0330] Group 1, Group 1 includes broadband information or Group 0 of PMI;

[0331] Group 2, Group 2 includes Group 1 of even subband CSI information or PMI;

[0332] Group 3: Group 3 includes Group 2 of odd subband CSI information or PMI.

[0333] Among them, the priority of CSI of group 1 is higher than that of group 2, and the priority of CSI of group 2 is higher than that of CSI of group 3.

[0334] The priority of group 0 is higher than the content contained in each CSI group corresponding to the M CSI-RS resources. The CSI priority of the M resources can refer to the above example 1, such as defining the priority of each resource according to the broadband CQI of the first TB corresponding to each resource.

[0335] In this example: CSI of group 0>first group CSI of the third resource>second group CSI of the third resource>third group CSI of the third resource>first group CSI of the first resource>second group CSI of the first resource>third group CSI of the first resource>first group CSI of the second resource>second group CSI of the second resource>third group CSI of the second resource.

[0336] In the third implementation mode, this implementation mode is applicable to the case where the parameter M is not configured in the configuration information. R When x=N, N>0; the meaning of the parameters can refer to any of the above implementation methods.

[0337] Wherein, N may be a positive integer satisfying: 1≤N≤M.

[0338] In this implementation manner, when N>0, Part 1 includes the wideband channel quality indicator CQI and subband CQI of the first TB corresponding to the N CSI-RS resources.

[0339] In this implementation manner, the N CSI-RS resources may be determined from the M CSI-RS resources according to the first rule.

[0340] For example, the first rule satisfies at least one of the following:

[0341] The first rule is defined by a protocol or configured by a network device; for example, the terminal 101 may determine N CSI-RS resources based on protocol pre-definition or NW configuration.

[0342] The first rule is: select N CSI-RS resources from M CSI-RS resources according to the index or identification order of the CSI-RS resources; for example, the terminal 101 selects N CSI-RS resources according to the size of the CSI-RS resource index or CSI-RS ID.

[0343] The first rule is: select N CSI-RS resources from M CSI-RS resources according to a defined or configured metric value.

[0344] The metric value is at least one of the following: CQI of the CSI-RS resource; signal-to-noise-interference ratio SINR of the CSI-RS resource; rank indication RI of the CSI-RS resource; PMI of the CSI-RS resource.

[0345] In this implementation manner, the CSI corresponding to each CSI-RS resource in Part 2 includes the following multiple groups:

[0346] Group 1, Group 1 includes Group 0 of broadband information or precoding matrix indication PMI;

[0347] Group 2, Group 2 includes Group 1 of even subband CSI information or PMI;

[0348] Group 3: Group 3 includes Group 2 of odd subband CSI information or PMI.

[0349] It is worth noting that, in this implementation, Part 2 no longer includes the wideband CQI and subband CQI of the first TB corresponding to the CSI-RS resource in Part 1.

[0350] In this implementation manner, Part 2 may also include the wideband CQI and subband CQI of the first TB corresponding to the M-N CSI-RS resources.

[0351] For example, for any one or each CSI-RS resource among M-N CSI-RS resources (denoted as the pth CSI-RS resource), the CSI corresponding to the pth CSI-RS resource in Part 2 includes the following multiple groups:

[0352] Group 1, Group 1 includes the wideband CQI of the first transport block TB corresponding to the p-th CSI-RS resource, and Group 0 of other wideband information or PMI corresponding to the p-th CSI-RS resource; or, Group 1 includes the wideband CQI of the first TB and the subband CQI of the first TB corresponding to the p-th CSI-RS resource, and Group 0 of other wideband information or PMI corresponding to the p-th CSI-RS resource;

[0353] Group 2, Group 2 includes the even subband CQI of the first TB, and the even subband CQI information of other TBs or Group 1 of the PMI;

[0354] Group 3: Group 3 includes odd subband CQI of the first TB and odd subband CQI information of other TBs or Group 2 of PMI.

[0355] For another example, the CSI corresponding to a certain CSI-RS resource in Part 2 includes the wideband CQI and subband CQI of the first TB corresponding to the M-N CSI-RS resources. The CSI corresponding to the certain CSI-RS resource may be the CSI corresponding to a CSI-RS resource with a higher CSI priority.

[0356] For another example, in combination with the second implementation manner above, the 0th group in Part 2 includes the wideband CQI and subband CQI of the first TB corresponding to the M-N CSI-RS resources.

[0357] In this implementation manner, the priority of the CSI corresponding to each CSI-RS resource satisfies: the CSI priority of the first group> the CSI priority of the second group> the CSI priority of the third group.

[0358] For the third implementation, in combination with the description of the above embodiment, a specific example is listed below:

[0359] Example 3

[0360] In combination with the scenario of Example 1 in the first implementation mode, for example, the network device 102 configures Ks=4 CSI-RS resources for the terminal 101 through configuration information, and also configures the terminal 101 to report the CSI of M=3 CSI-RS resources, and the codebook type configured for the terminal 101 is Rel-15Type I SP codebook. The CSI corresponding to the M=3 CSI-RS resources is reported in two parts, Part 1 and Part 2.

[0361] Assuming x=N=1, Part1 includes the wideband CQI and subband CQI of the first TB corresponding to one CSI-RS resource, or Part1 includes the CQI of the first TB corresponding to one CSI-RS resource.

[0362] Part 2 includes: the PMI corresponding to the M CSI-RS resources, the wideband CQI and subband CQI of the first TB corresponding to the M-1 CSI-RS resources, the wideband CQI and subband CQI of the second TB, and the LI corresponding to the M CSI-RS resources.

[0363] The CSI corresponding to each CSI-RS resource in Part 2 can be divided into three groups:

[0364] The first group includes: the wideband CQI and subband CQI of the first TB corresponding to M-1 CSI-RS resources, the wideband CQI and subband CQI of the second TB, and the indication information related to wideband i1 in the PMI, LI;

[0365] The second group includes: the even subband CQI of the second TB, and the indication information related to the even subband i2 in the PMI;

[0366] The third group includes: the odd subband CQI of the second TB, and the indication information related to the odd subband i2 in the PMI.

[0367] Combined with Example 1, the CSI priority corresponding to the three CSI-RS resources in this example can still be based on CQI, such as the CSI priority of the three resources is defined as: CSI corresponding to the third CSI-RS resource>CSI corresponding to the first CSI-RS resource>CSI corresponding to the second CSI-RS resource.

[0368] In this example, the priority in each CSI-RS resource satisfies: CSI priority of the first group>CSI priority of the second group>CSI priority of the third group.

[0369] In the fourth implementation mode, this embodiment is applicable to the case where the parameter M is configured in the configuration information. R And M R >0. The meaning of the parameters can refer to any of the above implementations.

[0370] In this embodiment, the parameter M is configured in the configuration information. R And M R > 0, in Part 1 and / or Part 2, M R The priority of the CSI corresponding to the CSI-RS resource is greater than (M-M R ) CSI-RS resources corresponding to the CSI priority.

[0371] In this embodiment, x=M R . Then Part1 can include M R The wideband CQI and subband CQI of the first TB corresponding to the CSI-RS resource.

[0372] In this implementation manner, the CSI corresponding to each CSI-RS resource in Part 2 includes the following multiple groups:

[0373] Group 1, Group 1 includes Group 0 of broadband information or precoding matrix indication PMI;

[0374] Group 2, Group 2 includes Group 1 of even subband CSI information or PMI;

[0375] Group 3: Group 3 includes Group 2 of odd subband CSI information or PMI.

[0376] It is worth noting that, in this implementation, Part 2 no longer includes the wideband CQI and subband CQI of the first TB corresponding to the CSI-RS resource in Part 1.

[0377] In this embodiment, when x=M R When Part 2 is included, M-M RThe wideband CQI and subband CQI of the first TB corresponding to the CSI-RS resource.

[0378] For example, for any one or each CSI-RS resource among M-N CSI-RS resources (denoted as the pth CSI-RS resource), the CSI corresponding to the pth CSI-RS resource in Part 2 includes the following multiple groups:

[0379] Group 1, Group 1 includes the wideband CQI of the first transport block TB corresponding to the p-th CSI-RS resource, and Group 0 of other wideband information or PMI corresponding to the p-th CSI-RS resource; or, Group 1 includes the wideband CQI of the first TB and the subband CQI of the first TB corresponding to the p-th CSI-RS resource, and Group 0 of other wideband information or PMI corresponding to the p-th CSI-RS resource;

[0380] Group 2: Group 2 includes the even subband CQI of the first TB, the even subband CQI information of other TBs or Group 1 of PMI;

[0381] Group 3: Group 3 includes the odd subband CQI of the first TB, odd subband CQI information of other TBs or Group 2 of PMI.

[0382] For another example, in the CSI corresponding to a CSI-RS resource in Part 2, the M-M R The wideband CQI and subband CQI of the first TB corresponding to the CSI-RS resource. The CSI corresponding to the certain CSI-RS resource may be the CSI corresponding to the CSI-RS resource with a higher CSI priority.

[0383] For another example, in combination with the second embodiment above, in group 0 in Part 2, the M-M R The wideband CQI and subband CQI of the first TB corresponding to the CSI-RS resource.

[0384] In this implementation manner, the priority of the CSI corresponding to each CSI-RS resource satisfies: the CSI priority of the first group> the CSI priority of the second group> the CSI priority of the third group.

[0385] For the fourth implementation, in combination with the description of the above embodiments, a specific example is listed below:

[0386] Example 4:

[0387] Assume that the network device 102 configures Ks=4 CSI-RS resources for the terminal 101 through configuration information, and each resource ID is divided into CSI-RS resource ID1, CSI-RS resource ID2, CSI-RS resource ID3, and CSI-RSresource ID4; and also configures the terminal 101 to report CSI for M=2 CSI-RS resources. The codebook type configured for the terminal 101 is Rel-16 Type II codebook. The CSI corresponding to M=2 resources is still reported in two parts, CSI Part 1 and Part 2.

[0388] Assume that the network device 102 configures M for the terminal 101 R =1, Part 1 includes MM R CRI, M RI. Let x = M, then Part 1 contains the wideband CQI and subband CQI of the first TB corresponding to the M CSI-RS resources. Let CSI Part 2 corresponding to each CSI-RS resource be divided into the following three groups:

[0389] Group 1: Group 0, including indices i 1,1 (if reported), i 1,2 (if reported), and i 1,8,l (l=1,…,v), where v represents the layer or rank;

[0390] Group 2: Group 1, including index i 1,5 (if reported), i 1,6,l (if reported), i 1,7,l High priority element i 2,3,l ,i 2,4,l High priority element i 2,5,l (l=1,…,v) high priority element Where NZ represents the non-zero coefficient, L represents the number of odd vectors in the spatial domain, and M represents the number of odd vectors in the frequency domain;

[0391] Group 3: Group 2, i 1,7,l Low priority element i 2,4,l Low priority element Low priority element

[0392] Assume that the network device 102 configures the M R=1 corresponds to CSI-RS resource ID1, then for CSIPart2, it can be satisfied that: Part2 stores the content of CSIPart2 corresponding to CSI-RS resource ID1 first, and then stores MM R The CSIPart2 corresponding to the CSI-RS resource ID indicated by the CRI.

[0393] Based on the above description, in another optional example: the terminal 101 first stores the contents of CSI Part 1 and Part 2 corresponding to CSI-RS resource ID 1 in the reported CSI, and then stores the contents of MM R The CSI Part 1 and Part 2 corresponding to the CSI-RS resource ID indicated by the CRI. Among them, the CSI corresponding to the CSI-RS resource ID1 has a higher priority than the MM R The CSI priority corresponding to the CSI-RS resource ID indicated by the CRI. Or, the CSIPart 2 priority of CSI-RS resourceID1 is higher than that of MM R The CSIPart2 priority corresponding to the CSI-RS resource ID indicated by the CRI. The CSIPart 1 priority of CSI-RS resource ID1 is higher than that of MM R The priority of CSIPart1 corresponding to the CSI-RS resource ID indicated by the CRI. The priority of CSIPart2 of CSI-RS resource ID1 is lower than that of MM. R The CSIPart1 priority corresponding to the CSI-RS resource ID indicated by the CRI.

[0394] If you set MM R The CSI-RS resource ID indicated by the CRI is CSI-RS resource ID 3. The CSI priority can be defined as:

[0395] CSI part1 of CSI-RS resource ID1>CSI part2 of CSI-RS resource ID1>CSI part1 of CSI-RSresource ID3>CSI part2 of CSI-RS resource ID3. Or CSI part1 of CSI-RS resource ID1>CSI part1 of CSI-RS resource ID3>CSI part2 of CSI-RS resource ID1>CSI part2 of CSI-RS resource ID3.

[0396] In the fifth implementation, this implementation can be applied to the configuration information where the parameter M is not configured. R And x=0, or the parameter M is not configured in the configuration information R When x=N, N>0, or the parameter M is configured in the configuration information R And M R ≥0, etc. The meaning of the parameters can refer to any of the above implementations.

[0397] In this implementation manner, Part 1 includes the wideband channel quality indicator CQI and subband CQI of the first TB corresponding to the x CSI-RS resources.

[0398] In this implementation, Part 2 includes the following groups:

[0399] Group 1, Group 1 includes wideband CQI and / or wideband information corresponding to M CSI-RS resources, or Group 1 includes Group 0;

[0400] Group 2, where Group 2 includes even subband CQI and / or even subband CSI information corresponding to M CSI-RS resources, or Group 2 includes Group 1;

[0401] Group 3: Group 3 includes odd subband CQI and / or odd subband CSI information corresponding to M CSI-RS resources, or Group 3 includes Group 2.

[0402] In this implementation, in Part 2 of the CSI corresponding to M CSI-RS resources, Part 2 is divided into 3 groups, wherein each group includes the content divided into Part 2 corresponding to the M CSI-RS resources. For example, Part 2 includes: Group 1, Group 2, and Group 3, wherein each group includes the content belonging to Part 2 corresponding to the M CSI-RS resources. The difference from the first implementation is that in the first implementation, Part 2 includes 3 groups of content corresponding to different single CSI-RS resources (i.e., the 3 groups of content corresponding to a certain resource and the 3 groups of content corresponding to other resources can be relatively independent).

[0403] In this embodiment, after configuring the parameter M R And M R > 0, the CSI priority of each group in Part2 satisfies: in group 1, group 2 or group 3, M R The CSI priority corresponding to the CSI-RS resource is greater than (M-M R ) CSI priorities corresponding to the CSI-RS resources.

[0404] Among them, when it comes to discarding, priority is given to discarding (M-M R ) CSI corresponding to the CSI-RS resources.

[0405] For example, the CSI order of each group in Part2 satisfies:

[0406] In group 1, first map M R The broadband CQI and / or broadband information corresponding to the CSI-RS resources, or Group 0; then the broadband CQI and / or broadband information corresponding to the (M-MR) CSI-RS resources, or Group 0;

[0407] In group 2, first map M R The even subband CQI and / or even subband CSI information corresponding to the CSI-RS resources, or Group 1; then the even subband CQI and / or even subband CSI information corresponding to the (M-MR) CSI-RS resources, or Group 1;

[0408] In group 3, first map M R The odd subband CQI and / or odd subband CSI information corresponding to the CSI-RS resources, or Group 2; and then mapping the odd subband CQI and / or odd subband CSI information corresponding to the (M-MR) CSI-RS resources, or Group 2.

[0409] In this implementation manner, the CSI priority of each group in Part2 is determined according to a second rule, where the second rule is the same as or different from the first rule.

[0410] The second rule may refer to the description of the foregoing embodiment. For example, the second rule satisfies at least one of the following:

[0411] The second rule is: determine the CSI priorities corresponding to the M CSI-RS resources according to the defined or configured metric value;

[0412] The second rule is: determine the CSI priorities corresponding to the M CSI-RS resources according to the order of the indexes or identifiers of the CSI-RS resources;

[0413] The second rule is defined by the protocol or configured by the network device;

[0414] The second rule is: according to the order of each CSI-RS resource in Part 1, determine the CSI priorities corresponding to the M CSI-RS resources.

[0415] Where the metric is at least one of the following:

[0416] CQI of CSI-RS resources;

[0417] The signal-to-noise-interference ratio (SINR) of the CSI-RS resource;

[0418] Rank indication RI of CSI-RS resources;

[0419] The PMI of the CSI-RS resource.

[0420] In some embodiments, the terminal 101 may, based on the priorities between the CSIs corresponding to different CSI-RS resources and the priorities between different groups of CSIs described in the aforementioned embodiments, discard part of the CSI corresponding to some or all of the CSI-RS resources when uplink transmission resources are limited, such as discarding the contents of the low-priority group corresponding to the low-priority CSI-RS resources.

[0421] Step S2104 , the terminal 101 reports the remaining CSI corresponding to the M CSI-RS resources to the network device 102 .

[0422] In some embodiments, based on the discarding in step S2103, the terminal 101 may report the discarded remaining CSI, such as reporting the remaining CSI corresponding to part or all of the M CSI-RS resources, thereby ensuring a certain system performance even when partial CSI discard occurs.

[0423] In some embodiments, the names of information, etc. are not limited to the names recorded in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", and "field" can be used interchangeably.

[0424] In some embodiments, "obtain", "obtain", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from high levels, obtaining by self-processing, autonomous implementation, etc.

[0425] In some embodiments, terms such as "send", "transmit", "report", "send", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0426] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

[0427] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be interchangeable, and terms such as "duration", "period", "time window", "window", and "time" can be interchangeable.

[0428] In some embodiments, the terms "component carrier (CC)", "cell", "frequency carrier", "carrier frequency" and the like may be used interchangeably.

[0429] In some embodiments, terms such as "certain", "preset", "preset", "set", "indicated", "some", "any", and "first" can be interchangeable, and "specific A", "preset A", "preset A", "set A", "indicated A", "some A", "any A", and "first A" can be interpreted as A pre-defined in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., and can also be interpreted as specific A, some A, any A, or first A, etc., but is not limited to this.

[0430] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited to this.

[0431] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving the data; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the recipient to respond to the sent content.

[0432] The method involved in the embodiment of the present disclosure may include at least one of steps S2101 to S2104.

[0433] In some embodiments, step S2102 is optional and can be replaced by one or more steps in different embodiments.

[0434] In some embodiments, see Figure 2 Other optional implementations recorded before or after the corresponding description.

[0435] In the disclosed embodiment, the content in Part 1 can be reduced, which is conducive to reducing the information length of Part 1 and improving the accuracy of decoding Part 1. And based on the different grouping mapping methods in the disclosed embodiment and the priority determination method of CSI corresponding to different resources, the terminal can choose to discard the CSI to ensure that a certain system performance can still be guaranteed when discarding part of the CSI.

[0436] Figure 3a FIG. 1 is a flow chart of a CSI reporting method shown in an embodiment of the present disclosure. Figure 3a As shown, the embodiment of the present disclosure relates to a CSI reporting method, which is performed by a terminal 101. The method includes:

[0437] Step S3101, receiving configuration information.

[0438] In some embodiments, the implementation of step S3101 can refer to Figure 2 The implementation method of step S2101 will not be repeated here.

[0439] Step S3102: determine the CSI priorities corresponding to the M CSI-RS resources.

[0440] In some embodiments, the implementation of step S3102 can refer to Figure 2 The implementation method of step S2102 will not be repeated here.

[0441] Step S3103: discard part of the CSI corresponding to the M CSI-RS resources according to the configuration information and the CSI priorities corresponding to the M CSI-RS resources.

[0442] In some embodiments, the implementation of step S3103 can be seen in Figure 2 The implementation method of step S2103 will not be repeated here.

[0443] Step S3104: Report the remaining CSI corresponding to the M CSI-RS resources.

[0444] In some embodiments, the implementation of step S3104 can refer to Figure 2 The implementation method of step S2104 will not be repeated here.

[0445] In some embodiments, see Figure 3a Other optional implementations recorded before or after the corresponding description.

[0446] Figure 3b FIG. 1 is a flow chart of a CSI reporting method shown in an embodiment of the present disclosure. Figure 3b As shown, the embodiment of the present disclosure relates to a CSI reporting method, which is performed by a terminal 101. The method includes:

[0447] Step S3201, receiving configuration information.

[0448] In some embodiments, the implementation of step S3201 can refer to Figure 2 The implementation method of step S2101 will not be repeated here.

[0449] Step S3202: discard part of the CSI corresponding to the M CSI-RS resources according to the configuration information and the CSI priorities corresponding to the M CSI-RS resources.

[0450] In some embodiments, the implementation of step S3202 can refer to Figure 2The implementation method of step S2103 will not be repeated here.

[0451] Step S3203: Report the remaining CSI corresponding to the M CSI-RS resources.

[0452] In some embodiments, the implementation of step S3203 can be seen in Figure 2 The implementation method of step S2104 will not be repeated here.

[0453] In some embodiments, see Figure 3b Other optional implementations recorded before or after the corresponding description.

[0454] Figure 4 FIG. 1 is a flow chart of a CSI reporting method shown in an embodiment of the present disclosure. Figure 4 As shown, the embodiment of the present disclosure relates to a CSI reporting method, which is performed by a network device 102. The method includes:

[0455] Step S4101, sending configuration information.

[0456] In some embodiments, the implementation of step S4101 can refer to Figure 2 The implementation method of step S2101 will not be repeated here.

[0457] Step S4102: Receive the remaining CSI corresponding to M CSI-RS resources.

[0458] In some embodiments, the implementation of step S4102 can refer to Figure 2 The implementation methods of steps S2103 to S2104 will not be repeated here.

[0459] In some embodiments, see Figure 4 Other optional implementations recorded before or after the corresponding description.

[0460] In the embodiments of the present disclosure, a method for storing CSI or UCI parameter information corresponding to each CSI-RS resource in Part 1 and Part 2 and a method for defining priorities are proposed to ensure that certain system performance can be guaranteed when part of the CSI is discarded. To facilitate understanding of the embodiments of the present disclosure, some embodiments under different cases are listed below:

[0461] Assume that the NW side configures Ks CSI-RS resources for the UE for downlink channel measurement, and also configures CSI reporting based on M CSI-RS resources. Let x represent the wideband CQI and subband CQI of the first TB corresponding to the x resources reported by the UE.

[0462] Case 1

[0463] When M R = 0, the NW side does not configure parameter M R , and x=0:

[0464] Alt1: The CSI of each resource is still divided into three groups. The first group in CSI Part 2 includes at least the wideband CQI and subband CQI of the first TB, or at least the wideband CQI of the first TB; if the first group only includes the wideband CQI of the first TB, the second group also includes at least the even subband CQI of the first TB; the third group also includes at least the odd subband CQI of the first TB, and Part 2 includes M CSIs among M CSI-RS resources.

[0465] The priority of each group of parameters in the CSI corresponding to each CSI-RS resource is defined as: the first group > the second group > the third group. That is, the priority of the CSI of the first group is higher than that of the second group, and the priority of the CSI of the second group is higher than that of the third group.

[0466] The CSI priorities corresponding to the M CSI-RS resources are defined according to one or more of the following methods:

[0467] According to the first metric value, the first metric value includes at least one of CQI, SINR, RI, and PMI of the CSI-RS resource.

[0468] The order of CSI-RS resource index or CSI-RS resource ID.

[0469] Protocol pre-defined or network configured.

[0470] According to the mapping order of each CRI in Part 1.

[0471] Alt2: Part 2 includes Group 0, which includes the wideband CQI and subband CQI of the first TB corresponding to the M resources, or only includes the wideband CQI. The CSI parameters of each resource are still divided into three groups. The CSI parameter content of each group is the same as the CSI parameter content defined in the existing standard. The priority of each group is defined as: Group 0 > the content contained in each group in the CSI parameters corresponding to the M CSI-RS resources. The definition of each CSI priority corresponding to the M CSI-RS resources is the same as described in Alt1.

[0472] The mapping order of the first TBs corresponding to the M resources in group 0 is: one or more of the CSI priority definitions corresponding to the above M CSI-RS resources.

[0473] For case 1, an embodiment 1 is listed:

[0474] Assume that the gNB configures Ks=4 CSI-RS resources for the UE, and also configures the UE to report CSI of M=3 CSI-RS resources. The codebook type configured for the UE is Rel-15 Type I SP codebook. The CSI corresponding to the three resources is still reported in two parts, CSI Part 1 and Part 2. Part 1 includes M CRIs and M RIs. Assume that Part 1 does not include the broadband CQI and subband CQI of the first TB corresponding to each resource, that is, x=0. Part 2 includes the PMI corresponding to the M resources, the broadband CQI and subband CQI of the first TB and the second TB corresponding to the M resources, and the LI corresponding to the M resources.

[0475] For Alt1, the CSI corresponding to each resource is divided into three groups:

[0476] The first group: wideband CQI and subband CQI of the first TB and the second TB, indication information related to wideband i1 in PMI, LI;

[0477] The second group: the even subband CQI of the second TB, and the indication information related to the even subband i2 in the PMI;

[0478] The third group: the odd subband CQI of the second TB, and the indication information related to the odd subband i2 in the PMI.

[0479] The CSI priority of the first group is higher than that of the second group, and the CSI priority of the second group is higher than that of the third group. Assume that the UE calculates that the broadband CQI of the first TB corresponding to the third resource among M=3 resources is the largest, and the broadband CQI of the first TB corresponding to the second resource is the smallest. Then the CSI priorities of these three resources are defined as:

[0480] The CSI corresponding to the third resource> the CSI corresponding to the first resource> the CSI corresponding to the second resource.

[0481] For Alt2, Part 2 is divided into four groups. Group 0 contains the broadband CQI and subband CQI of the first TB corresponding to the M resources. The information contained in the other three groups of each resource is the same as in the existing standard, and the CSI priority of the first group is higher than that of the second group, and the CSI priority of the second group is higher than that of the third group. The priority of group 0 is the content contained in each group in the CSI parameters corresponding to the M CSI-RS resources. The CSI priority definition of the M resources is the same as Alt1, and the priority of each resource is defined according to the broadband CQI of the first TB corresponding to each resource. Then:

[0482] CSI of group 0>first group CSI of the third resource>second group CSI of the third resource>third group CSI of the third resource>first group CSI of the first resource>second group CSI of the first resource>third group CSI of the first resource>first group CSI of the second resource>second group CSI of the second resource>third group CSI of the second resource.

[0483] The mapping order of broadband and subband CQI of the first TB of the M resources in the above group 0 may also adopt the same criteria as the CSI priority of the M resources. For example, the priority is defined according to the broadband CQI of the first TB. Then the mapping order of broadband and subband CQI of the first TB in group 0 is: broadband CQI and subband CQI of the third resource, broadband CQI and subband CQI of the first resource, broadband CQI and subband CQI of the second resource.

[0484] Case 2

[0485] When M R = 0, the NW side does not configure parameter M R , and x=N, 1≤N≤M is a positive integer:

[0486] Part 1 includes at least the wideband CQI and subband of the first TB corresponding to N CSI-RS resources. The CSI-RS resource definition is as follows:

[0487] The corresponding CSI-RS resources predefined by the protocol or determined by NW configuration

[0488] Select N CSI-RS resources according to the CSI-RS resource index or the size of the CSI-RS ID

[0489] Determine N CSI-RS resources according to the first metric value

[0490] The parameters and priority definitions of each resource included in Part 2 are the same as those in Alt1 and Alt2 in Case 0. Unlike Case 0, Part 2 no longer includes the wideband CQI and subband CQI of the first TB corresponding to the CSI-RS resource described in Part 1.

[0491] For case 2, an embodiment 2 is listed:

[0492] Similar to Embodiment 1, except that Part 1 includes the wideband CQI and subband CQI of the first TB corresponding to a CSI-RS resource, or only the wideband CQI. The mapping order of other contents in Part 1 and Part 2 or the CSI priority of each group is the same as in Embodiment 1.

[0493] For example:

[0494] The network device 102 configures Ks=4 CSI-RS resources for the terminal 101 through configuration information, and also configures the terminal 101 to report the CSI of M=3 CSI-RS resources, and the codebook type configured for the terminal 101 is Rel-15 Type I SP codebook. The CSI corresponding to the M=3 CSI-RS resources is reported in two parts, Part 1 and Part 2.

[0495] Assuming x=N=1, Part1 includes the wideband CQI and subband CQI of the first TB corresponding to one CSI-RS resource, or Part1 includes the CQI of the first TB corresponding to one CSI-RS resource.

[0496] Part 2 includes: the PMI corresponding to the M CSI-RS resources, the wideband CQI and subband CQI of the first TB corresponding to the M-1 CSI-RS resources, the wideband CQI and subband CQI of the second TB, and the LI corresponding to the M CSI-RS resources.

[0497] The CSI corresponding to each CSI-RS resource in Part 2 can be divided into three groups:

[0498] The first group includes: the wideband CQI and subband CQI of the first TB corresponding to M-1 CSI-RS resources, the wideband CQI and subband CQI of the second TB, and the indication information related to wideband i1 in the PMI, LI;

[0499] The second group includes: the even subband CQI of the second TB, and the indication information related to the even subband i2 in the PMI;

[0500] The third group includes: the odd subband CQI of the second TB, and the indication information related to the odd subband i2 in the PMI.

[0501] Combined with Example 1, the CSI priority corresponding to the three CSI-RS resources in this example can still be based on CQI, such as the CSI priority of the three resources is defined as: CSI corresponding to the third CSI-RS resource>CSI corresponding to the first CSI-RS resource>CSI corresponding to the second CSI-RS resource.

[0502] In this example, the priority in each CSI-RS resource satisfies: CSI priority of the first group>CSI priority of the second group>CSI priority of the third group.

[0503] Case 3

[0504] When M R >0, the NW side is configured with parameter M RFor example, the NW side configures the UE with parameter 0 <M R The value of .

[0505] Option 1: Part 1 includes the wideband CQI and subband CQI of the first TB corresponding to x=0 or N CSI-RS resources. Optionally, x=M R The wideband CQI and subband CQI of the first TB corresponding to the CSI-RS resource.

[0506] Part 2 M R The CSI priority corresponding to a CSI-RS resource is higher than that of other MM R CSI parameter information corresponding to each CSI-RS resource. The CSI corresponding to each resource is still divided into three groups, the CSI priority of the first group > the CSI priority of the second group > the CSI priority of the third group. R The priority of each resource in the CSI-RS resources, or MM R The priority definition of each resource in the CSI-RS resources is the same as the method for defining the priority of each resource described in Alt1 above.

[0507] Option 2: Store the CSIPart1 and CSIPart2 corresponding to each of the M resources separately. R The CSI priority corresponding to the resource is higher than that of MM R The priority of each resource. R The priority of each resource in the CSI-RS resources, or MM R The priority definition of each resource in the CSI-RS resources is the same as the method for defining the priority of each resource described in Alt1 above.

[0508] For case 3, an embodiment 3 is listed:

[0509] Assume that the gNB configures Ks = 4 CSI-RS resources for the UE, and the resource IDs are divided into CSI-RS resource ID1, CSI-RS resource ID2, CSI-RS resource ID3, and CSI-RS resource ID4. The UE is also configured to report CSI for M = 2 CSI-RS resources. The codebook type configured for the UE is Rel-16 Type II codebook. The CSI corresponding to the M resources is still reported in two parts, CSI Part 1 and Part 2. Assume that the gNB configures M R =1, Part 1 includes MM RCRI, M RI. Assume that Part 1 contains the broadband CQI and subband CQI corresponding to M resources, that is, x = M. Let CSI Part 2 corresponding to each resource be divided into the following three groups:

[0510] Group 1: Group 0, including indices i 1,1 (if reported), i 1,2 (if reported), and i 1,8,l (l=1,…,v), where v represents the layer or rank;

[0511] Group 2: Group 1, including index i 1,5 (if reported), i 1,6,l (if reported), i 1,7,l High priority element i 2,3,l ,i 2,4,l High priority element High priority element Where NZ represents the non-zero coefficient, L represents the number of odd vectors in the spatial domain, and M represents the number of odd vectors in the frequency domain;

[0512] Group 3: Group 2, i 1,7,l Low priority element i 2,4,l Low priority element Low priority element

[0513] Assume that the gNB configures M R =1 corresponds to CSI-RS resource ID1, then CSIPart 2 stores the content of CSIPart 2 corresponding to CSI-RS resource ID1 first, and then stores MM R The CSIPart2 corresponding to the CSI-RS resource ID indicated by the CRI.

[0514] For Option 2, the contents of CSI Part 1 and Part 2 corresponding to CSI-RS resource ID 1 are first stored in the reported CSI, and then the MM R The CSI-RS resource ID indicated by the CRI corresponds to the CSI Part 1 and Part 2. The CSI corresponding to the CSI-RS resource ID 1 has a higher priority than the MM RThe CSI priority corresponding to the CSI-RS resource ID indicated by the CRI. Or the CSIPart 2 priority of CSI-RS resource ID1 is higher than that of MM R The CSIPart2 priority corresponding to the CSI-RS resource ID indicated by the CRI. The CSIPart 1 priority of CSI-RS resource ID1 is higher than that of MM R The CSIPart1 priority corresponding to the CSI-RS resource ID indicated by the CRI. The CSIPart2 priority of CSI-RSresource ID1 is lower than that of MM. R The CSIPart1 priority corresponding to the CSI-RS resource ID indicated by the CRI.

[0515] If you set MM R The CSI-RS resource ID indicated by the CRI is CSI-RS resource ID 3. The CSI priority can be defined as:

[0516] CSI part1 of CSI-RS resource ID1>CSI part2 of CSI-RS resource ID1>CSI part1 of CSI-RSresource ID3>CSI part2 of CSI-RS resource ID3. Or

[0517] CSI part1 of CSI-RS resource ID1>CSI part1 of CSI-RS resource ID3>CSI part2 of CSI-RSresource ID1>CSI part2 of CSI-RS resource ID3.

[0518] The storage method in the embodiment of the present disclosure can still ensure certain system performance even when part of the CSI is discarded.

[0519] The embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device is proposed, the above device includes a unit or module for implementing each step performed by the terminal in any of the above methods. For another example, another device is also proposed, including a unit or module for implementing each step performed by a network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0520] It should be understood that the division of the units or modules in the above device is only a division of logical functions, and in actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. In addition, the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and instructions are stored in the memory. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory inside the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above hardware circuits can be understood as one or more processors; for example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the above units or modules are realized by designing the logical relationship of the components in the circuit; for example, in another implementation, the above hardware circuit can be realized by a programmable logic device (PLD), taking a field programmable gate array (FPGA) as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of a processor calling software, or in the form of a hardware circuit, or in part by a processor calling software, and the rest by a hardware circuit.

[0521] In the disclosed embodiment, the processor is a circuit with signal processing capability. In one implementation, the processor may be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which may be understood as a microprocessor), or a digital signal processor (DSP), etc.; in another implementation, the processor may realize certain functions through the logical relationship of the hardware circuit, and the logical relationship of the above hardware circuit is fixed or reconfigurable, such as a hardware circuit implemented by a processor as an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and realizing the configuration of the hardware circuit may be understood as the process of the processor loading instructions to realize the functions of some or all of the above units or modules. In addition, it may also be a hardware circuit designed for artificial intelligence, which may be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0522] Figure 5a Schematic diagram of the structure of the terminal proposed in the embodiment of the present disclosure. Figure 5a As shown, the terminal 5100 may include: at least one of a transceiver module 5101, a processing module 5102, etc. In some embodiments, the transceiver module 5101 is used to receive configuration information sent by a network device, and the configuration information at least includes a first number M of CSI-RS resources for reporting channel state information CSI. The processing module 5102 is used to discard part of the CSI corresponding to the M CSI-RS resources when uplink transmission resources are limited according to the configuration information and the CSI priorities corresponding to the M CSI-RS resources; the transceiver module 5101 is used to report the remaining CSI corresponding to the M CSI-RS resources to the network device.

[0523] Optionally, the transceiver module 5101 is used to execute at least one of the communication steps such as sending and / or receiving executed by the terminal 101 in any of the above methods, which will not be described in detail here. Optionally, the processing module 5102 is used to execute at least one of the other steps executed by the terminal 101 in any of the above methods, which will not be described in detail here.

[0524] Figure 5b Schematic diagram of the structure of the terminal proposed in the embodiment of the present disclosure. Figure 5b As shown, the network device 5200 may include: at least one of a transceiver module 5201, a processing module 5202, etc. In some embodiments, the transceiver module 5201 is used to send configuration information to the terminal, and the configuration information at least includes a first number M of CSI-RS resources used for channel state information CSI reporting; the transceiver module 5201 is also used to receive the remaining CSI corresponding to the M CSI-RS resources, wherein the remaining CSI corresponding to the M CSI-RS resources is obtained by the terminal discarding part of the CSI corresponding to the M CSI-RS resources when uplink transmission resources are limited according to the configuration information and the CSI priorities corresponding to the M CSI-RS resources.

[0525] In some embodiments, the transceiver module may include a sending module and / or a receiving module, and the sending module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0526] In some embodiments, the processing module can be a module or include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be replaced with the processor.

[0527] Figure 6a 6100 is a schematic diagram of the structure of the communication device 6100 proposed in the embodiment of the present disclosure. The communication device 6100 can be a network device (such as an access network device, a core network device, etc.), or a terminal (such as a user device, etc.), or a chip, a chip system, or a processor that supports the network device to implement any of the above methods, or a chip, a chip system, or a processor that supports the terminal to implement any of the above methods. The communication device 6100 can be used to implement the method described in the above method embodiment, and the details can be referred to the description in the above method embodiment.

[0528] like Figure 6aAs shown, the communication device 6100 includes one or more processors 6101. The processor 6101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and the communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute the program, and process the data of the program. Optionally, the communication device 6100 is used to execute any of the above methods. Optionally, one or more processors 6101 are used to call instructions so that the communication device 6100 executes any of the above methods.

[0529] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 6101 performs at least one of the other steps. In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and the transmitter may be separated or integrated. Optionally, the terms such as transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc. may be replaced with each other, the terms such as transmitter, transmission unit, transmitter, transmission circuit, etc. may be replaced with each other, and the terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.

[0530] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data. Optionally, all or part of the memories 6103 may also be outside the communication device 6100. In an optional embodiment, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuit 6104 is connected to the memory 6103, and the interface circuit 6104 may be used to receive data from the memory 6103 or other devices, and may be used to send data to the memory 6103 or other devices. For example, the interface circuit 6104 may read the data stored in the memory 6103 and send the data to the processor 6101.

[0531] The communication device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 6100 described in the present disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited thereto. Figure 6aThe communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0532] Figure 6b 6200 according to an embodiment of the present disclosure. Figure 6b The structure diagram of chip 6200 is shown, but is not limited to this.

[0533] The chip 6200 includes one or more processors 6201. The chip 6200 is configured to execute any of the above methods.

[0534] In some embodiments, the chip 6200 further includes one or more interface circuits 6202. Optionally, the terms such as interface circuit, interface, transceiver pin, etc. can be interchangeable. In some embodiments, the chip 6200 further includes one or more memories 6203 for storing data. Optionally, all or part of the memory 6203 can be outside the chip 6200. Optionally, the interface circuit 6202 is connected to the memory 6203, and the interface circuit 6202 can be used to receive data from the memory 6203 or other devices, and the interface circuit 6202 can be used to send data to the memory 6203 or other devices. For example, the interface circuit 6202 can read the data stored in the memory 6203 and send the data to the processor 6201.

[0535] In some embodiments, the interface circuit 6202 performs at least one of the communication steps such as sending and / or receiving in the above method. The interface circuit 6202 performs the communication steps such as sending and / or receiving in the above method, for example, means that the interface circuit 6202 performs data interaction between the processor 6201, the chip 6200, the memory 6203 or the transceiver device. In some embodiments, the processor 6201 performs at least one of the other steps.

[0536] The modules and / or devices described in the embodiments such as virtual devices, physical devices, chips, etc. can be combined or separated as needed. Optionally, some or all steps can also be performed by multiple modules and / or devices in collaboration, which is not limited here.

[0537] The present disclosure also proposes a storage medium, on which instructions are stored, and when the instructions are executed on the communication device 6100, the communication device 6100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices. Optionally, the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a temporary storage medium.

[0538] The present disclosure also proposes a program product, which, when executed by the communication device 6100, enables the communication device 6100 to execute any of the above methods. Optionally, the program product is a computer program product.

[0539] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to execute any one of the above methods.

[0540] Industrial Applicability

[0541] Based on the configuration information, the terminal obtains the number of CSI-RS resources configured by the network device for CSI reporting. During the CSI reporting process, the terminal can report according to the CSI priority corresponding to each CSI-RS resource, and discard the CSI corresponding to the CSI-RS resources with low priority. In this way, the CSI can be effectively reported when the uplink transmission resources are limited, and the integrity of the CSI corresponding to at least some of the CSI-RS resources can be guaranteed, thereby ensuring system performance.

Claims

1. A CSI reporting method, performed by a terminal, the method comprising: Receiving configuration information sent by a network device, where the configuration information at least includes a first number M of CSI-RS resources used for reporting channel state information CSI; According to the configuration information and the CSI priorities corresponding to the M CSI-RS resources, discarding part of the CSI corresponding to the M CSI-RS resources; Report the remaining CSI corresponding to the M CSI-RS resources to the network device.

2. The method of claim 1, wherein: The CSI corresponding to the M CSI-RS resources includes: a first part Part 1 and a second part Part 2, wherein the CSI corresponding to Part 2 is preferentially discarded when uplink transmission resources are limited.

3. The method of claim 2, wherein: Part 1 includes the wideband channel quality indicator CQI and subband CQI of the first TB corresponding to x CSI-RS resources, 0≤x≤M; The Part 2 includes M CSIs corresponding to M CSI-RS resources.

4. The method of claim 3, wherein: Parameter M is not configured in the configuration information R When x=0, the CSI corresponding to each CSI-RS resource in Part 2 includes the following groups: Group 1, the group 1 includes a wideband CQI of a first transport block TB, or includes a wideband CQI and a subband CQI of the first TB; A second group, wherein the second group includes even subband CQIs of the first TB; Group 3, the group 3 includes odd subband CQIs of the first TB.

5. The method according to claim 3 or 4, wherein: In Part 2, the CSI corresponding to each CSI-RS resource includes the following groups: Group 1, the Group 1 including Group 0 of broadband information or precoding matrix indication PMI; Group 2, the Group 2 including Group 1 of even subband CSI information or PMI; Group 3, where Group 3 includes Group 2 of odd subband CSI information or PMI.

6. The method of claim 5, wherein: The configuration information does not contain parameter M. R and when x=N, N>0; or, the configuration information is configured with parameter M R And M R >0.

7. The method of claim 6, wherein: Parameter M is not configured in the configuration information R When x=N and N>0, the Part 1 includes the wideband channel quality indicator CQI and subband CQI of the first TB corresponding to the N CSI-RS resources.

8. The method of claim 7, wherein: The method further comprises: The N CSI-RS resources are determined from the M CSI-RS resources according to a first rule.

9. The method of claim 8, wherein: The first rule satisfies at least one of the following: The first rule is defined by a protocol or configured by the network device; The first rule is: selecting the N CSI-RS resources from the M CSI-RS resources according to the index or identification order of the CSI-RS resources; The first rule is: selecting the N CSI-RS resources from the M CSI-RS resources according to a defined or configured metric value.

10. The method of claim 6, wherein: The parameter M is configured in the configuration information. R And M R >0, in Part 1 and / or Part 2, the M R The priority of the CSI corresponding to the CSI-RS resource is greater than (M-M R ) CSI-RS resources corresponding to the CSI priority.

11. The method of claim 10, wherein: x=M R 。 12. The method according to any one of claims 4 to 11, wherein: The priority of the CSI corresponding to each CSI-RS resource satisfies: The CSI priority of the first group>the CSI priority of the second group>the CSI priority of the third group.

13. The method of claim 3, wherein: Parameter M is not configured in the configuration information R When x=0, Part 2 includes: Group 0, where the group 0 includes the wideband CQI of the first TB, or includes the wideband CQI and the subband CQI of the first TB; In Part 2, the CSI corresponding to each CSI-RS resource includes the following groups: Group 1, the Group 1 including broadband information or Group 0 of PMI; Group 2, the Group 2 including Group 1 of even subband CSI information or PMI; Group 3, where Group 3 includes Group 2 of odd subband CSI information or PMI.

14. The method of claim 13, wherein: The priority of the CSI corresponding to each CSI-RS resource satisfies: The CSI priority of the 0th group>the CSI priority of the 1st group>the CSI priority of the 2nd group>the CSI priority of the 3rd group.

15. The method of claim 3, wherein: Part 2 includes the following groups: Group 1, the group 1 includes wideband CQIs and / or wideband information corresponding to the M CSI-RS resources, or the group 1 includes Group 0; Group 2, the Group 2 including even subband CQI and / or even subband CSI information corresponding to the M CSI-RS resources, or the Group 2 including Group 1; Group 3, the group 3 including odd subband CQI and / or odd subband CSI information corresponding to the M CSI-RS resources, or the group 3 includes Group 2; The configuration information does not include parameter M. R and x=0, or the configuration information does not include parameter M R When x=N, N>0, or the configuration information is configured with parameter M R And M R ≥0.

16. The method of claim 15, wherein: After configuring the parameter M R And M R >0, the CSI priority of each group in Part 2 satisfies: In the first group, the second group or the third group, the M R The CSI priority corresponding to the (M-MR) CSI-RS resources is greater than the CSI priority corresponding to the (M-MR) CSI-RS resources.

17. The method of claim 16, wherein: The CSI priority of each group in Part2 is determined according to a second rule, wherein the second rule is the same as or different from the first rule.

18. The method according to any one of claims 1 to 17, wherein: The method further comprises: The CSI priorities corresponding to the M CSI-RS resources are determined according to a second rule, where the second rule is the same as or different from the first rule.

19. The method according to claim 17 or 18, wherein: The second rule satisfies at least one of the following: The second rule is: determining the CSI priorities corresponding to the M CSI-RS resources according to a defined or configured metric value; The second rule is: determining the CSI priorities corresponding to the M CSI-RS resources according to the order of the indexes or identifiers of the CSI-RS resources; The second rule is defined by a protocol or configured by the network device; The second rule is: determining the CSI priorities corresponding to the M CSI-RS resources according to the order indicated by each CSI-RS resource in Part 1.

20. The method of claim 9 or 19, wherein: The metric value is at least one of the following: CQI of CSI-RS resources; The signal-to-noise-interference ratio (SINR) of the CSI-RS resource; Rank indication RI of CSI-RS resources; The PMI of the CSI-RS resource.

21. A CSI reporting method, performed by a network device, the method comprising: Sending configuration information to the terminal, where the configuration information includes at least a first number M of CSI-RS resources used for channel state information CSI reporting; Receive the remaining CSI corresponding to the M CSI-RS resources reported by the terminal, wherein the remaining CSI corresponding to the M CSI-RS resources is obtained by the terminal discarding part of the CSI corresponding to the M CSI-RS resources according to the configuration information and the CSI priorities corresponding to the M CSI-RS resources.

22. The method of claim 21, wherein: The CSI corresponding to the M CSI-RS resources includes: a first part Part 1 and a second part Part 2, wherein the CSI corresponding to Part 2 is preferentially discarded when uplink transmission resources are limited.

23. The method of claim 22, wherein: Part 1 includes the wideband channel quality indicator CQI and subband CQI of the first TB corresponding to x CSI-RS resources, 0≤x≤M; The Part 2 includes M CSIs corresponding to M CSI-RS resources.

24. The method of claim 23, wherein: Parameter M is not configured in the configuration information R When x=0, the CSI corresponding to each CSI-RS resource in Part 2 includes the following groups: Group 1, the group 1 includes a wideband CQI of a first transport block TB, or includes a wideband CQI and a subband CQI of the first TB; A second group, wherein the second group includes even subband CQIs of the first TB; Group 3, the group 3 includes odd subband CQIs of the first TB.

25. The method of claim 23 or 24, wherein: In Part 2, the CSI corresponding to each CSI-RS resource includes the following groups: Group 1, the Group 1 including broadband information or Group 0 of PMI; Group 2, the Group 2 including Group 1 of even subband CSI information or PMI; Group 3, where Group 3 includes Group 2 of odd subband CSI information or PMI.

26. The method of claim 25, wherein: The configuration information does not contain parameter M. R and when x=N, N>0; or, the configuration information is configured with parameter M R And M R >0.

27. The method of claim 26, wherein: Parameter M is not configured in the configuration information R When x=N and N>0, the Part 1 includes the wideband channel quality indicator CQI and subband CQI of the first TB corresponding to the N CSI-RS resources.

28. The method of claim 27, wherein: The N CSI-RS resources are determined among the M CSI-RS resources according to a first rule.

29. The method of claim 28, wherein: The first rule satisfies at least one of the following: The first rule is defined by a protocol or configured by the network device; The first rule is: selecting the N CSI-RS resources from the M CSI-RS resources according to the index or identification order of the CSI-RS resources; The first rule is: selecting the N CSI-RS resources from the M CSI-RS resources according to a defined or configured metric value.

30. The method of claim 26, wherein: The parameter M is configured in the configuration information. R And M R >0, in Part 1 and / or Part 2, the M R The priority of the CSI corresponding to the CSI-RS resource is greater than (M-M R ) CSI-RS resources corresponding to the CSI priority.

31. The method of claim 30, wherein: x=M R 。 32. The method of any one of claims 24 to 31, wherein: The priority of the CSI corresponding to each CSI-RS resource satisfies: The CSI priority of the first group>the CSI priority of the second group>the CSI priority of the third group.

33. The method of claim 23, wherein: Parameter M is not configured in the configuration information R When x=0, Part 2 includes: Group 0, where the group 0 includes the wideband CQI of the first TB, or includes the wideband CQI and the subband CQI of the first TB; In Part 2, the CSI corresponding to each CSI-RS resource includes the following groups: Group 1, the Group 1 including broadband information or Group 0 of PMI; Group 2, the Group 2 including Group 1 of even subband CSI information or PMI; Group 3, where Group 3 includes Group 2 of odd subband CSI information or PMI.

34. The method of claim 33, wherein: The priority of the CSI corresponding to each CSI-RS resource satisfies: The CSI priority of the 0th group>the CSI priority of the 1st group>the CSI priority of the 2nd group>the CSI priority of the 3rd group.

35. The method of claim 23, wherein: Part 2 includes the following groups: Group 1, the group 1 includes wideband CQIs and / or wideband information corresponding to the M CSI-RS resources, or the group 1 includes Group 0; Group 2, the Group 2 including even subband CQI and / or even subband CSI information corresponding to the M CSI-RS resources, or the Group 2 including Group 1; Group 3, the group 3 including odd subband CQI and / or odd subband CSI information corresponding to the M CSI-RS resources, or the group 3 includes Group 2; The configuration information does not include parameter M. R and x=0, or the configuration information does not include parameter M R When x=N, N>0, or the configuration information is configured with parameter M R And M R ≥0.

36. The method of claim 35, wherein: After configuring the parameter M R And M R >0, the CSI priority of each group in Part 2 satisfies: In the first group, the second group or the third group, the M R The CSI priority corresponding to the (M-MR) CSI-RS resources is greater than the CSI priority corresponding to the (M-MR) CSI-RS resources.

37. The method of claim 36, wherein: The CSI priority of each group in Part2 is determined according to a second rule, wherein the second rule is the same as or different from the first rule.

38. The method of any one of claims 21 to 37, wherein: The priority of CSI reporting corresponding to the M CSI-RS resources is determined according to a second rule, where the second rule is the same as or different from the first rule.

39. The method of claim 37 or 38, wherein: The second rule satisfies at least one of the following: The second rule is: determining the CSI priorities corresponding to the M CSI-RS resources according to a defined or configured metric value; The second rule is: determining the CSI priorities corresponding to the M CSI-RS resources according to the order of the indexes or identifiers of the CSI-RS resources; The second rule is defined by a protocol or configured by the network device; The second rule is: determining the CSI priorities corresponding to the M CSI-RS resources according to the order indicated by each CSI-RS resource in Part 1.

40. The method of claim 29 or 39, wherein: The metric value is at least one of the following: CQI of CSI-RS resources; The signal-to-noise-interference ratio (SINR) of the CSI-RS resource; Rank indication RI of CSI-RS resources; The PMI of the CSI-RS resource.

41. A terminal, comprising: A transceiver module, configured to receive configuration information sent by a network device, wherein the configuration information at least includes a first number M of CSI-RS resources used for reporting channel state information CSI; A processing module, configured to discard part of the CSI corresponding to the M CSI-RS resources according to the configuration information and the CSI priorities corresponding to the M CSI-RS resources; The transceiver module is further used to report the remaining CSI corresponding to the M CSI-RS resources to the network device.

42. A network device comprising: A transceiver module, configured to send configuration information to a terminal, wherein the configuration information at least includes a first number M of CSI-RS resources used for reporting channel state information CSI; The transceiver module is also used to receive the remaining CSI corresponding to M CSI-RS resources, wherein the remaining CSI corresponding to the M CSI-RS resources is obtained by the terminal discarding part of the CSI corresponding to the M CSI-RS resources according to the configuration information and the CSI priority corresponding to the M CSI-RS resources.

43. A communication device comprising: one or more processors; Wherein, the communication device is configured to implement the method of any one of claims 1 to 20 or claims 21 to 40.

44. A communication system, comprising a terminal and a network device, wherein: The terminal is configured to implement the method according to any one of claims 1 to 20; The network device is configured to implement the method according to any one of claims 21 to 40.

45. A storage medium storing instructions, wherein: When the instruction is executed on a communication device, the communication device is caused to execute the method according to any one of claims 1 to 20 or claims 21 to 40.

46. ​​A program product, wherein When the program product is executed by a communication device, the communication device is caused to execute the method according to any one of claims 1 to 20 or claims 21 to 40.

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