Communication method and device, terminal equipment and network equipment

Abstract

The invention discloses a communication method and device, terminal equipment and network equipment, and relates to the technical field of communication. The method comprises: a network device configures CSI measurement reporting of a candidate cell of an LTM through first configuration information, so that a terminal device performs CSI measurement reporting of the candidate cell according to the first configuration information, and sends a first CSI report, thereby reporting CSI information of the candidate cell through the first CSI report, and realizing CSI measurement reporting of the candidate cell. And then, the network equipment sends a cell switching command to the terminal equipment, so that the terminal equipment executes switching from the serving cell to the new serving cell according to the cell switching command. Therefore, since the terminal equipment has the CSI measurement report of the new serving cell before the cell switching, the CSI measurement report does not need to be performed on the new serving cell temporarily after the cell switching is completed, and the time delay of performing the CSI measurement report on the new serving cell is reduced.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a communication method and apparatus, terminal equipment and network equipment. Background Technology

[0002] The existing Layer 1 or Layer 2 Triggered Mobility (LTM) measurement reporting process only reports beam measurements to candidate cells before cell handover, while the existing Channel State Information (CSI) measurement reporting process reports CSI measurements to the serving cell.

[0003] Therefore, in LTM cell handover scenarios, currently only beam measurement reporting is performed on LTM candidate cells before handover, and CSI measurement reporting is performed on the new serving cell after handover is completed. Since channel scheduling for the new serving cell may not begin until both handover and CSI measurement reporting are completed, there is a certain delay in channel scheduling for the new serving cell. Summary of the Invention

[0004] This application provides a communication method and apparatus, a terminal device and a network device, with the aim of realizing the CSI measurement and reporting of candidate cells of LTM before cell handover.

[0005] Firstly, a communication method according to this application includes:

[0006] Receive first configuration information, which is used to configure the CSI measurement reporting of candidate cells that trigger mobility LTM in layer 1 or layer 2;

[0007] A first CSI report is sent based on the first configuration information. The first CSI report is used to report the CSI information of the first candidate cell. The first candidate cell includes one or more candidate cells.

[0008] Receive a cell handover command, which indicates a handover from the serving cell to a candidate cell among the first candidate cells.

[0009] As can be seen, this embodiment can configure the CSI measurement reporting of candidate cells for LTM to the terminal device through the first configuration information, enabling the terminal device to report the CSI measurement of candidate cells according to the first configuration information and send a first CSI report. Since the first CSI report is used to report the CSI information of the first candidate cell, the terminal device in this embodiment can use the first CSI report to feed back or report the CSI information of the candidate cell to the network device, thereby realizing the CSI measurement reporting of the candidate cell.

[0010] When a network device determines that a terminal device needs to hand over from the serving cell to one of the candidate cells in the first candidate cells, the network device sends a cell handover command to the terminal device, enabling the terminal device to perform the handover from the serving cell to the candidate cell according to the cell handover command. At this time, the candidate cell becomes the new serving cell.

[0011] In this way, since the terminal equipment will report the CSI measurement of the new serving cell when it performs CSI measurement and reporting on the first candidate cell before cell handover, it is not necessary to perform CSI measurement and reporting on the new serving cell again after the cell handover is completed. This helps to reduce the latency of CSI measurement and reporting on the new serving cell, so that the CSI information of the new serving cell can be applied in a timely manner when channel scheduling is performed on the new serving cell. The CSI information of the new serving cell can determine the transmission parameters that best match the channel conditions of the new serving cell, avoiding the use of conservative or outdated transmission parameters to schedule channel transmission.

[0012] In some possible examples, the first configuration information includes first reference signal resource configuration information and first CSI report configuration information, wherein the first CSI report configuration information is associated with the first reference signal resource configuration information;

[0013] The first reference signal resource configuration information is used to configure the reference signal resources of candidate cells in LTM;

[0014] The first CSI report configuration information is used to configure the CSI reporting of candidate cells for LTM.

[0015] In some possible examples, the first reference signal resource configuration information includes a list of reference signal resource sets and a list of candidate cell identifiers; or,

[0016] The first reference signal resource configuration information includes a reference signal resource set, and the reference signal resource set information includes candidate cell identifier information; or...

[0017] The first reference signal resource configuration information includes reference signal resource set information and candidate cell identifier information; or...

[0018] The first reference signal resource configuration information includes reference signal resource set information, which in turn includes a reference signal resource list and a candidate cell identifier list; or...

[0019] The first reference signal resource configuration information includes candidate cell identifier information; or...

[0020] The first reference signal resource configuration information includes a reference signal resource list and a candidate cell identifier list; or...

[0021] The first reference signal resource configuration information includes reference signal resource information and candidate cell identifier information.

[0022] In some possible examples, the CSI information of the first candidate cell includes the candidate cell identifier and / or the CSI of the first candidate cell;

[0023] The CSI of the first candidate cell includes at least one of the following: CSI Reference Signal Resource Indicator (CRI) of the first candidate cell, Synchronization Signal Block Resource Indicator (SSBRI) of the first candidate cell, Rank Indicator (RI) of the first candidate cell, Precoding Matrix Indicator (PMI) of the first candidate cell, Channel Quality Indicator (CQI) of the first candidate cell, or Layer Indicator (LI) of the first candidate cell.

[0024] In some possible examples, the CSI of the first candidate cell is determined by the reporting parameters corresponding to the first CSI report;

[0025] The parameters reported in the first CSI report include at least one of the following: first parameter, second parameter, third parameter, fourth parameter, fifth parameter, or sixth parameter;

[0026] The first parameter indicator is CRI, the second parameter indicator is SSBRI, the third parameter indicator is RI, the fourth parameter indicator is PMI, the fifth parameter indicator is CQI, and the sixth parameter indicator is LI.

[0027] In some possible examples, the reporting parameters corresponding to the first CSI report are indicated by the first configuration information; or,

[0028] The reporting parameters for the first CSI report are specified by default settings or standard protocols.

[0029] In some possible examples, the candidate cell identifiers of the first candidate cell are arranged in the first CSI report in ascending or descending order of their candidate cell identifiers; or,

[0030] The candidate cell identifiers for the first candidate cell are arranged in the first CSI report according to the order of the beam information of the candidate cells in the LTM report; or,

[0031] The candidate cell identifiers of the first candidate cells are arranged in the first CSI report in ascending or descending order of the CSI of the first candidate cells.

[0032] In some possible examples, the CSIs of the first candidate cell are arranged in the first CSI report in ascending or descending order of the candidate cell identifiers; or,

[0033] The CSI of the first candidate cell is arranged in the first CSI report according to the order of the beam information of the candidate cells in the LTM report; or,

[0034] The CSIs of the first candidate cells are arranged in the first CSI report in ascending or descending order of their CSI values.

[0035] In some possible examples, the candidate cell identifier of the first candidate cell is located in part 1 or part 2 of the first CSI report; or,

[0036] The CSI of the first candidate cell is in part 1 or part 2 of the first CSI report; or...

[0037] The candidate cell identifier of the first candidate cell is located in part 1 of the first CSI report, and the CSI of the first candidate cell is located in part 2 of the first CSI report; or,

[0038] The candidate cell identifier of the first candidate cell is located in part 2 of the first CSI report, and the CSI of the first candidate cell is located in part 1 of the first CSI report; or,

[0039] The number of candidate cells for the first candidate cell is in part 1 of the first CSI report, and the candidate cell identifier and CSI of the first candidate cell are in part 2 of the first CSI report; or,

[0040] The broadband CSI of the first candidate cell is in part 1 of the first CSI report, or the subband CSI of the first candidate cell is in part 2 of the first CSI report; or...

[0041] At least one of the following in the first CSI report is in part 1 of the first CSI report: RI, CRI, CQI of the first codeword, or the number of non-zero broadband amplitude coefficients per layer of the first candidate cell; and at least one of the following in the first CSI report is in part 2 of the first candidate cell: PMI, LI, or CQI of the second codeword.

[0042] In some possible examples, the CRI of the first candidate cell includes an absolute CRI and one or more differential CRIs corresponding to the absolute CRI; and / or,

[0043] The SSBRI of the first candidate cell includes an absolute SSBRI and one or more differential SSBRIs corresponding to the absolute SSBRI; and / or,

[0044] The RI of the first candidate cell includes an absolute RI and one or more differential RIs corresponding to the absolute RI; and / or,

[0045] The PMI of the first candidate cell includes an absolute PMI and one or more differential PMIs corresponding to the absolute PMI; and / or,

[0046] The CQI of the first candidate cell includes an absolute CQI and one or more differential CQIs corresponding to the absolute CQI; and / or,

[0047] The LI of the first candidate cell includes an absolute LI and one or more differential LIs corresponding to the absolute LI.

[0048] In some possible examples, the first candidate cell consists of L candidate cells, where L is a positive integer;

[0049] L is determined by network configuration, standard protocols, pre-configuration, or default settings;

[0050] L is less than or equal to the number of candidate cells that the terminal device can support for CSI measurement reporting.

[0051] In some possible examples, the first candidate cell consists of N candidate cells, where N is a positive integer;

[0052] N is less than or equal to Nmax, where Nmax represents the maximum number of candidate cells included in the first CSI report, and / or N is less than or equal to the number of candidate cells that the terminal device's capabilities support for CSI measurement reporting.

[0053] In some possible examples, the N candidate cells are the first N candidate cells in the first candidate cell sequence, which is obtained by sorting the candidate cells corresponding to the beam information in the LTM report in descending order; or,

[0054] N candidate cells are defined as N candidate cells whose beam information in the LTM report exceeds a first preset threshold; or,

[0055] N candidate cells, which are the first N candidate cells in the second candidate cell sequence. The second candidate cell sequence is obtained by sorting the candidate cells configured in the first configuration information according to the CSI of the candidate cells obtained from CSI measurement in descending order; or...

[0056] N candidate cells are those whose CSI values, obtained from CSI measurements, exceed a second preset threshold.

[0057] In some possible examples, the first CSI report has a higher priority than the second CSI report, which is used to report the CSI information of the serving cell.

[0058] In some possible examples, the priority of the first CSI report is calculated using the following formula:

[0059] Pri CSI (y, k, c, s) = 2·N cells ·M s ·y+N cells ·M s ·k+M s ·c+s;

[0060] Among them, Pri CSI (y, k, c, s) represents the priority of the first CSI report;

[0061] The value of y in the priority of the first CSI report is less than or equal to the value of y in the priority of the second CSI report, or the value of y in the priority of the first CSI report is less than or equal to the value of y in the priority of the second CSI report which has the same channel type and the same time domain type as the first CSI report. The second CSI report is used to report the CSI information of the serving cell.

[0062] In the priority of the first CSI report, the value of k is less than or equal to the value of k in the priority of the second CSI report, or the value of k in the priority of the first CSI report is 1;

[0063] c represents the cell identifier of the serving cell, or c represents the cell identifier of any candidate cell in the first candidate cells, or c represents the largest candidate cell identifier, the smallest candidate cell identifier, or any candidate cell identifier in the first candidate cells, or c represents the largest candidate cell identifier, the smallest candidate cell identifier, or any candidate cell identifier in the candidate cell set. The candidate cell set is one or more candidate cells where the reference signal configured by the reference signal resource configuration associated with the report configuration of the first CSI report is located.

[0064] 's' indicates the report configuration identifier for the first CSI report;

[0065] M s This represents the sum of the number of report configuration information used to configure the first CSI report and the number of report configuration information used to configure the LTM report, or M. s This represents the sum of the number of report configuration information used to configure the first CSI report, the number of report configuration information used to configure the LTM report, and the number of report configuration information used to configure the second CSI report.

[0066] N cells This represents the maximum number of serving cells, or N. cells This represents the sum of the maximum number of serving cells and the maximum number of candidate cells, or N. cells This indicates the maximum number of candidate cells.

[0067] In some possible examples, if the first candidate cell is a candidate cell of the primary cell, then c represents the cell identifier of the primary cell; or, c may be 0.

[0068] In some possible examples, the report configuration identifier of the first CSI report is smaller than the report configuration identifier of the second CSI report.

[0069] In some possible examples, the priority value of the first CSI report is lower than the priority value of the second CSI report; or,

[0070] If the priority value of the first CSI report is the same as the priority value of the second CSI report, then the priority of the first CSI report is higher than the priority of the second CSI report.

[0071] In some possible examples, the first CSI report has a lower priority than the LTM report, which is used to report beam information for candidate cells.

[0072] In some possible examples, the priority value of the first CSI report is greater than the priority value of the LTM report; or,

[0073] If the priority value of the first CSI report is the same as the priority value of the LTM report, then the priority of the first CSI report is lower than the priority of the LTM report.

[0074] The LTM report is used to report the beam information of candidate cells.

[0075] In some possible examples, if the priority value of the first CSI report is the same as the priority value of the third CSI report, the third CSI report is used to report the CSI information of the second candidate cell, and the beam information of the first candidate cell is greater than the beam information of the second candidate cell, then

[0076] The first CSI report has a higher priority than the third CSI report;

[0077] The second candidate cell includes one or more candidate cells.

[0078] In some possible examples, the CSI information of the first candidate cell has a lower priority than the Hybrid Automatic Repeat Request (HARQ) - Determine ACK information; and / or,

[0079] The priority of CSI information for the first candidate cell is lower than that of scheduling request information.

[0080] In some possible examples, the CSI information of the first candidate cell includes information located in part 1 of the first CSI report and information located in part 2 of the first CSI report;

[0081] Information located in Part 1 of the first CSI report has a higher priority than information located in Part 2 of the first CSI report.

[0082] In some possible examples, the CSI information of the first candidate cell includes the CSI information of the candidate cell corresponding to the first identifier and the CSI information of the candidate cell corresponding to the second identifier, wherein the first identifier and the second identifier are respectively one of the candidate cell identifiers of the first candidate cell;

[0083] If the first identifier is less than the second identifier, then the priority of the CSI information of the candidate cell corresponding to the first identifier is higher than the priority of the CSI information of the candidate cell corresponding to the second identifier.

[0084] In some possible examples, the CSI information of the first candidate cell includes the CSI information of the candidate cell corresponding to the first beam information and the CSI information of the candidate cell corresponding to the second beam information, wherein the first beam information and the second beam information are one of the beam information of the candidate cells reported in the LTM report.

[0085] If the first beam information is greater than the second beam information, then the priority of the CSI information of the candidate cell corresponding to the first beam information is higher than the priority of the CSI information of the candidate cell corresponding to the second beam information.

[0086] In some possible examples, the CSI information of the first candidate cell includes both broadband CSI and subband CSI;

[0087] Broadband CSI has a higher priority than subband CSI.

[0088] In some possible examples, the CSI information of the first candidate cell includes the CSI information corresponding to the first sub-band number and the CSI information corresponding to the second sub-band number;

[0089] If the first sub-band number is less than the second sub-band number, then the priority of the CSI information corresponding to the first sub-band number is lower or higher than the priority of the CSI information corresponding to the second sub-band number.

[0090] In some possible examples, the CSI information of the first candidate cell includes the first PMI and the first CQI; if the first PMI and the first CQI are in part 1 or part 2 of the first CSI report, then the priority of the first PMI is lower or higher than the priority of the first CQI.

[0091] In some possible examples, the CSI information of the first candidate cell includes a second PMI and a second CQI, with the second PMI having a lower or higher priority than the second CQI.

[0092] Secondly, a communication method according to this application includes:

[0093] Send first configuration information, which is used to configure the CSI measurement reporting of candidate cells that trigger mobility LTM in layer 1 or layer 2;

[0094] The first CSI report is received based on the first configuration information. The first CSI report is used to report the CSI information of the first candidate cell. The first candidate cell includes one or more candidate cells.

[0095] Send a cell handover command. The cell handover command is used to indicate a handover from the serving cell to a candidate cell in the first candidate cell.

[0096] In some possible examples, the first configuration information includes first reference signal resource configuration information and first CSI report configuration information, wherein the first CSI report configuration information is associated with the first reference signal resource configuration information;

[0097] The first reference signal resource configuration information is used to configure the reference signal resources of candidate cells in LTM;

[0098] The first CSI report configuration information is used to configure the CSI reporting of candidate cells for LTM.

[0099] In some possible examples, the first reference signal resource configuration information includes a list of reference signal resource sets and a list of candidate cell identifiers; or,

[0100] The first reference signal resource configuration information includes a reference signal resource set, and the reference signal resource set information includes candidate cell identifier information; or...

[0101] The first reference signal resource configuration information includes reference signal resource set information and candidate cell identifier information; or...

[0102] The first reference signal resource configuration information includes reference signal resource set information, which in turn includes a reference signal resource list and a candidate cell identifier list; or...

[0103] The first reference signal resource configuration information includes candidate cell identifier information; or...

[0104] The first reference signal resource configuration information includes a reference signal resource list and a candidate cell identifier list; or...

[0105] The first reference signal resource configuration information includes reference signal resource information and candidate cell identifier information.

[0106] In some possible examples, the CSI information of the first candidate cell includes the candidate cell identifier and / or the CSI of the first candidate cell;

[0107] The CSI of the first candidate cell includes at least one of the following: CSI Reference Signal Resource Indicator (CRI) of the first candidate cell, Synchronization Signal Block Resource Indicator (SSBRI) of the first candidate cell, Rank Indicator (RI) of the first candidate cell, Precoding Matrix Indicator (PMI) of the first candidate cell, Channel Quality Indicator (CQI) of the first candidate cell, or Layer Indicator (LI) of the first candidate cell.

[0108] In some possible examples, the CSI of the first candidate cell is determined by the reporting parameters corresponding to the first CSI report;

[0109] The parameters reported in the first CSI report include at least one of the following: first parameter, second parameter, third parameter, fourth parameter, fifth parameter, or sixth parameter;

[0110] The first parameter indicator is CRI, the second parameter indicator is SSBRI, the third parameter indicator is RI, the fourth parameter indicator is PMI, the fifth parameter indicator is CQI, and the sixth parameter indicator is LI.

[0111] In some possible examples, the reporting parameters corresponding to the first CSI report are indicated by the first configuration information; or,

[0112] The reporting parameters for the first CSI report are specified by default settings or standard protocols.

[0113] In some possible examples, the candidate cell identifiers of the first candidate cell are arranged in the first CSI report in ascending or descending order of their candidate cell identifiers; or,

[0114] The candidate cell identifiers for the first candidate cell are arranged in the first CSI report according to the order of the beam information of the candidate cells in the LTM report; or,

[0115] The candidate cell identifiers of the first candidate cells are arranged in the first CSI report in ascending or descending order of the CSI of the first candidate cells.

[0116] In some possible examples, the CSIs of the first candidate cell are arranged in the first CSI report in ascending or descending order of the candidate cell identifiers; or,

[0117] The CSI of the first candidate cell is arranged in the first CSI report according to the order of the beam information of the candidate cells in the LTM report; or,

[0118] The CSIs of the first candidate cells are arranged in the first CSI report in ascending or descending order of their CSI values.

[0119] In some possible examples, the candidate cell identifier of the first candidate cell is located in part 1 or part 2 of the first CSI report; or,

[0120] The CSI of the first candidate cell is in part 1 or part 2 of the first CSI report; or...

[0121] The candidate cell identifier of the first candidate cell is located in part 1 of the first CSI report, and the CSI of the first candidate cell is located in part 2 of the first CSI report; or,

[0122] The candidate cell identifier of the first candidate cell is located in part 2 of the first CSI report, and the CSI of the first candidate cell is located in part 1 of the first CSI report; or,

[0123] The number of candidate cells for the first candidate cell is in part 1 of the first CSI report, and the candidate cell identifier and CSI of the first candidate cell are in part 2 of the first CSI report; or,

[0124] The broadband CSI of the first candidate cell is in part 1 of the first CSI report, or the subband CSI of the first candidate cell is in part 2 of the first CSI report; or...

[0125] At least one of the following in the first CSI report is in part 1 of the first CSI report: RI, CRI, CQI of the first codeword, or the number of non-zero broadband amplitude coefficients per layer of the first candidate cell; and at least one of the following in the first CSI report is in part 2 of the first candidate cell: PMI, LI, or CQI of the second codeword.

[0126] In some possible examples, the CRI of the first candidate cell includes an absolute CRI and one or more differential CRIs corresponding to the absolute CRI; and / or,

[0127] The SSBRI of the first candidate cell includes an absolute SSBRI and one or more differential SSBRIs corresponding to the absolute SSBRI; and / or,

[0128] The RI of the first candidate cell includes an absolute RI and one or more differential RIs corresponding to the absolute RI; and / or,

[0129] The PMI of the first candidate cell includes an absolute PMI and one or more differential PMIs corresponding to the absolute PMI; and / or,

[0130] The CQI of the first candidate cell includes an absolute CQI and one or more differential CQIs corresponding to the absolute CQI; and / or,

[0131] The LI of the first candidate cell includes an absolute LI and one or more differential LIs corresponding to the absolute LI.

[0132] In some possible examples, the first candidate cell consists of L candidate cells, where L is a positive integer;

[0133] L is determined by network configuration, standard protocols, pre-configuration, or default settings;

[0134] L is less than or equal to the number of candidate cells that the terminal device can support for CSI measurement reporting.

[0135] In some possible examples, the first candidate cell consists of N candidate cells, where N is a positive integer;

[0136] N is less than or equal to Nmax, where Nmax represents the maximum number of candidate cells included in the first CSI report, and / or N is less than or equal to the number of candidate cells that the terminal device's capabilities support for CSI measurement reporting.

[0137] In some possible examples, the N candidate cells are the first N candidate cells in the first candidate cell sequence, which is obtained by sorting the candidate cells corresponding to the beam information in the LTM report in descending order; or,

[0138] N candidate cells are defined as N candidate cells whose beam information in the LTM report exceeds a first preset threshold; or,

[0139] N candidate cells, which are the first N candidate cells in the second candidate cell sequence. The second candidate cell sequence is obtained by sorting the candidate cells configured in the first configuration information according to the CSI of the candidate cells obtained from CSI measurement in descending order; or...

[0140] N candidate cells are those whose CSI values, obtained from CSI measurements, exceed a second preset threshold.

[0141] In some possible examples, the first CSI report has a higher priority than the second CSI report, which is used to report the CSI information of the serving cell.

[0142] In some possible examples, the priority of the first CSI report is calculated using the following formula:

[0143] Pri CSI (y, k, c, s) = 2·N cells ·Ms ·y+N cells ·M s ·k+M s ·c+s;

[0144] Among them, Pri CSI (y, k, c, s) represents the priority of the first CSI report;

[0145] The value of y in the priority of the first CSI report is less than or equal to the value of y in the priority of the second CSI report, or the value of y in the priority of the first CSI report is less than or equal to the value of y in the priority of the second CSI report which has the same channel type and the same time domain type as the first CSI report. The second CSI report is used to report the CSI information of the serving cell.

[0146] In the priority of the first CSI report, the value of k is less than or equal to the value of k in the priority of the second CSI report, or the value of k in the priority of the first CSI report is 1;

[0147] c represents the cell identifier of the serving cell, or c represents the cell identifier of any candidate cell in the first candidate cells, or c represents the largest candidate cell identifier, the smallest candidate cell identifier, or any candidate cell identifier in the first candidate cells, or c represents the largest candidate cell identifier, the smallest candidate cell identifier, or any candidate cell identifier in the candidate cell set. The candidate cell set is one or more candidate cells where the reference signal configured by the reference signal resource configuration associated with the report configuration of the first CSI report is located.

[0148] 's' indicates the report configuration identifier for the first CSI report;

[0149] M s This represents the sum of the number of report configuration information used to configure the first CSI report and the number of report configuration information used to configure the LTM report, or M. s This represents the sum of the number of report configuration information used to configure the first CSI report, the number of report configuration information used to configure the LTM report, and the number of report configuration information used to configure the second CSI report.

[0150] N cells This represents the maximum number of serving cells, or N. cells This represents the sum of the maximum number of serving cells and the maximum number of candidate cells, or N. cells This indicates the maximum number of candidate cells.

[0151] In some possible examples, if the first candidate cell is a candidate cell of the primary cell, then c represents the cell identifier of the primary cell; or, c may be 0.

[0152] In some possible examples, the report configuration identifier of the first CSI report is smaller than the report configuration identifier of the second CSI report.

[0153] In some possible examples, the priority value of the first CSI report is lower than the priority value of the second CSI report; or,

[0154] If the priority value of the first CSI report is the same as the priority value of the second CSI report, then the priority of the first CSI report is higher than the priority of the second CSI report.

[0155] In some possible examples, the first CSI report has a lower priority than the LTM report, which is used to report beam information for candidate cells.

[0156] In some possible examples, the priority value of the first CSI report is greater than the priority value of the LTM report; or,

[0157] If the priority value of the first CSI report is the same as the priority value of the LTM report, then the priority of the first CSI report is lower than the priority of the LTM report.

[0158] The LTM report is used to report the beam information of candidate cells.

[0159] In some possible examples, if the priority value of the first CSI report is the same as the priority value of the third CSI report, the third CSI report is used to report the CSI information of the second candidate cell, and the beam information of the first candidate cell is greater than the beam information of the second candidate cell, then

[0160] The first CSI report has a higher priority than the third CSI report;

[0161] The second candidate cell includes one or more candidate cells.

[0162] In some possible examples, the CSI information of the first candidate cell has a lower priority than the Hybrid Automatic Repeat Request (HARQ) - Determine ACK information; and / or,

[0163] The priority of CSI information for the first candidate cell is lower than that of scheduling request information.

[0164] In some possible examples, the CSI information of the first candidate cell includes information located in part 1 of the first CSI report and information located in part 2 of the first CSI report;

[0165] Information located in Part 1 of the first CSI report has a higher priority than information located in Part 2 of the first CSI report.

[0166] In some possible examples, the CSI information of the first candidate cell includes the CSI information of the candidate cell corresponding to the first identifier and the CSI information of the candidate cell corresponding to the second identifier, wherein the first identifier and the second identifier are respectively one of the candidate cell identifiers of the first candidate cell;

[0167] If the first identifier is less than the second identifier, then the priority of the CSI information of the candidate cell corresponding to the first identifier is higher than the priority of the CSI information of the candidate cell corresponding to the second identifier.

[0168] In some possible examples, the CSI information of the first candidate cell includes the CSI information of the candidate cell corresponding to the first beam information and the CSI information of the candidate cell corresponding to the second beam information, wherein the first beam information and the second beam information are one of the beam information of the candidate cells reported in the LTM report.

[0169] If the first beam information is greater than the second beam information, then the priority of the CSI information of the candidate cell corresponding to the first beam information is higher than the priority of the CSI information of the candidate cell corresponding to the second beam information.

[0170] In some possible examples, the CSI information of the first candidate cell includes both broadband CSI and subband CSI;

[0171] Broadband CSI has a higher priority than subband CSI.

[0172] In some possible examples, the CSI information of the first candidate cell includes the CSI information corresponding to the first sub-band number and the CSI information corresponding to the second sub-band number;

[0173] If the first sub-band number is less than the second sub-band number, then the priority of the CSI information corresponding to the first sub-band number is lower or higher than the priority of the CSI information corresponding to the second sub-band number.

[0174] In some possible examples, the CSI information of the first candidate cell includes the first PMI and the first CQI; if the first PMI and the first CQI are in part 1 or part 2 of the first CSI report, then the priority of the first PMI is lower or higher than the priority of the first CQI.

[0175] In some possible examples, the CSI information of the first candidate cell includes a second PMI and a second CQI, with the second PMI having a lower or higher priority than the second CQI.

[0176] Thirdly, a communication device according to this application includes:

[0177] The receiving unit is used to receive first configuration information, which is used to configure the CSI measurement reporting of candidate cells for triggering mobility LTM in layer 1 or layer 2.

[0178] The sending unit is configured to send a first CSI report according to the first configuration information. The first CSI report is used to report the CSI information of the first candidate cell, which includes one or more candidate cells.

[0179] The receiving unit is also used to receive cell handover commands, which are used to indicate a handover from the serving cell to a candidate cell among the first candidate cells.

[0180] In some possible examples, the first configuration information includes first reference signal resource configuration information and first CSI report configuration information, wherein the first CSI report configuration information is associated with the first reference signal resource configuration information;

[0181] The first reference signal resource configuration information is used to configure the reference signal resources of candidate cells in LTM;

[0182] The first CSI report configuration information is used to configure the CSI reporting of candidate cells for LTM.

[0183] In some possible examples, the first reference signal resource configuration information includes a list of reference signal resource sets and a list of candidate cell identifiers; or,

[0184] The first reference signal resource configuration information includes a reference signal resource set, and the reference signal resource set information includes candidate cell identifier information; or...

[0185] The first reference signal resource configuration information includes reference signal resource set information and candidate cell identifier information; or...

[0186] The first reference signal resource configuration information includes reference signal resource set information, which in turn includes a reference signal resource list and a candidate cell identifier list; or...

[0187] The first reference signal resource configuration information includes candidate cell identifier information; or...

[0188] The first reference signal resource configuration information includes a reference signal resource list and a candidate cell identifier list; or...

[0189] The first reference signal resource configuration information includes reference signal resource information and candidate cell identifier information.

[0190] In some possible examples, the CSI information of the first candidate cell includes the candidate cell identifier and / or the CSI of the first candidate cell;

[0191] The CSI of the first candidate cell includes at least one of the following: CSI Reference Signal Resource Indicator (CRI) of the first candidate cell, Synchronization Signal Block Resource Indicator (SSBRI) of the first candidate cell, Rank Indicator (RI) of the first candidate cell, Precoding Matrix Indicator (PMI) of the first candidate cell, Channel Quality Indicator (CQI) of the first candidate cell, or Layer Indicator (LI) of the first candidate cell.

[0192] In some possible examples, the CSI of the first candidate cell is determined by the reporting parameters corresponding to the first CSI report;

[0193] The parameters reported in the first CSI report include at least one of the following: first parameter, second parameter, third parameter, fourth parameter, fifth parameter, or sixth parameter;

[0194] The first parameter indicator is CRI, the second parameter indicator is SSBRI, the third parameter indicator is RI, the fourth parameter indicator is PMI, the fifth parameter indicator is CQI, and the sixth parameter indicator is LI.

[0195] In some possible examples, the reporting parameters corresponding to the first CSI report are indicated by the first configuration information; or,

[0196] The reporting parameters for the first CSI report are specified by default settings or standard protocols.

[0197] In some possible examples, the candidate cell identifiers of the first candidate cell are arranged in the first CSI report in ascending or descending order of their candidate cell identifiers; or,

[0198] The candidate cell identifiers for the first candidate cell are arranged in the first CSI report according to the order of the beam information of the candidate cells in the LTM report; or,

[0199] The candidate cell identifiers of the first candidate cells are arranged in the first CSI report in ascending or descending order of the CSI of the first candidate cells.

[0200] In some possible examples, the CSIs of the first candidate cell are arranged in the first CSI report in ascending or descending order of the candidate cell identifiers; or,

[0201] The CSI of the first candidate cell is arranged in the first CSI report according to the order of the beam information of the candidate cells in the LTM report; or,

[0202] The CSIs of the first candidate cells are arranged in the first CSI report in ascending or descending order of their CSI values.

[0203] In some possible examples, the candidate cell identifier of the first candidate cell is located in part 1 or part 2 of the first CSI report; or,

[0204] The CSI of the first candidate cell is in part 1 or part 2 of the first CSI report; or...

[0205] The candidate cell identifier of the first candidate cell is located in part 1 of the first CSI report, and the CSI of the first candidate cell is located in part 2 of the first CSI report; or,

[0206] The candidate cell identifier of the first candidate cell is located in part 2 of the first CSI report, and the CSI of the first candidate cell is located in part 1 of the first CSI report; or,

[0207] The number of candidate cells for the first candidate cell is in part 1 of the first CSI report, and the candidate cell identifier and CSI of the first candidate cell are in part 2 of the first CSI report; or,

[0208] The broadband CSI of the first candidate cell is in part 1 of the first CSI report, or the subband CSI of the first candidate cell is in part 2 of the first CSI report; or...

[0209] At least one of the following in the first CSI report is in part 1 of the first CSI report: RI, CRI, CQI of the first codeword, or the number of non-zero broadband amplitude coefficients per layer of the first candidate cell; and at least one of the following in the first CSI report is in part 2 of the first candidate cell: PMI, LI, or CQI of the second codeword.

[0210] In some possible examples, the CRI of the first candidate cell includes an absolute CRI and one or more differential CRIs corresponding to the absolute CRI; and / or,

[0211] The SSBRI of the first candidate cell includes an absolute SSBRI and one or more differential SSBRIs corresponding to the absolute SSBRI; and / or,

[0212] The RI of the first candidate cell includes an absolute RI and one or more differential RIs corresponding to the absolute RI; and / or,

[0213] The PMI of the first candidate cell includes an absolute PMI and one or more differential PMIs corresponding to the absolute PMI; and / or,

[0214] The CQI of the first candidate cell includes an absolute CQI and one or more differential CQIs corresponding to the absolute CQI; and / or,

[0215] The LI of the first candidate cell includes an absolute LI and one or more differential LIs corresponding to the absolute LI.

[0216] In some possible examples, the first candidate cell consists of L candidate cells, where L is a positive integer;

[0217] L is determined by network configuration, standard protocols, pre-configuration, or default settings;

[0218] L is less than or equal to the number of candidate cells that the terminal device can support for CSI measurement reporting.

[0219] In some possible examples, the first candidate cell consists of N candidate cells, where N is a positive integer;

[0220] N is less than or equal to Nmax, where Nmax represents the maximum number of candidate cells included in the first CSI report, and / or N is less than or equal to the number of candidate cells that the terminal device's capabilities support for CSI measurement reporting.

[0221] In some possible examples, N candidate cells are the first N candidate cells in the first candidate cell sequence, which is obtained by sorting the candidate cells corresponding to the beam information in the LTM report in descending order; or...

[0222] N candidate cells are defined as N candidate cells whose beam information in the LTM report exceeds a first preset threshold; or,

[0223] N candidate cells, which are the first N candidate cells in the second candidate cell sequence. The second candidate cell sequence is obtained by sorting the candidate cells configured in the first configuration information according to the CSI of the candidate cells obtained from CSI measurement in descending order; or...

[0224] N candidate cells are those whose CSI values, obtained from CSI measurements, exceed a second preset threshold.

[0225] In some possible examples, the first CSI report has a higher priority than the second CSI report, which is used to report the CSI information of the serving cell.

[0226] In some possible examples, the priority of the first CSI report is calculated using the following formula:

[0227] Pri CSI (y, k, c, s) = 2·N cells ·M s ·y+N cells ·M s ·k+M s ·c+s;

[0228] Among them, PriCSI (y, k, c, s) represents the priority of the first CSI report;

[0229] The value of y in the priority of the first CSI report is less than or equal to the value of y in the priority of the second CSI report, or the value of y in the priority of the first CSI report is less than or equal to the value of y in the priority of the second CSI report which has the same channel type and the same time domain type as the first CSI report. The second CSI report is used to report the CSI information of the serving cell.

[0230] In the priority of the first CSI report, the value of k is less than or equal to the value of k in the priority of the second CSI report, or the value of k in the priority of the first CSI report is 1;

[0231] c represents the cell identifier of the serving cell, or c represents the cell identifier of any candidate cell in the first candidate cells, or c represents the largest candidate cell identifier, the smallest candidate cell identifier, or any candidate cell identifier in the first candidate cells, or c represents the largest candidate cell identifier, the smallest candidate cell identifier, or any candidate cell identifier in the candidate cell set. The candidate cell set is one or more candidate cells where the reference signal configured by the reference signal resource configuration associated with the report configuration of the first CSI report is located.

[0232] 's' indicates the report configuration identifier for the first CSI report;

[0233] M s This represents the sum of the number of report configuration information used to configure the first CSI report and the number of report configuration information used to configure the LTM report, or M. s This represents the sum of the number of report configuration information used to configure the first CSI report, the number of report configuration information used to configure the LTM report, and the number of report configuration information used to configure the second CSI report.

[0234] N cells This represents the maximum number of serving cells, or N. cells This represents the sum of the maximum number of serving cells and the maximum number of candidate cells, or N. cells This indicates the maximum number of candidate cells.

[0235] In some possible examples, if the first candidate cell is a candidate cell of the primary cell, then c represents the cell identifier of the primary cell; or, c may be 0.

[0236] In some possible examples, the report configuration identifier of the first CSI report is smaller than the report configuration identifier of the second CSI report.

[0237] In some possible examples, the priority value of the first CSI report is lower than the priority value of the second CSI report; or,

[0238] If the priority value of the first CSI report is the same as the priority value of the second CSI report, then the priority of the first CSI report is higher than the priority of the second CSI report.

[0239] In some possible examples, the first CSI report has a lower priority than the LTM report, which is used to report beam information for candidate cells.

[0240] In some possible examples, the priority value of the first CSI report is greater than the priority value of the LTM report; or,

[0241] If the priority value of the first CSI report is the same as the priority value of the LTM report, then the priority of the first CSI report is lower than the priority of the LTM report.

[0242] The LTM report is used to report the beam information of candidate cells.

[0243] In some possible examples, if the priority value of the first CSI report is the same as the priority value of the third CSI report, the third CSI report is used to report the CSI information of the second candidate cell, and the beam information of the first candidate cell is greater than the beam information of the second candidate cell, then

[0244] The first CSI report has a higher priority than the third CSI report;

[0245] The second candidate cell includes one or more candidate cells.

[0246] In some possible examples, the CSI information of the first candidate cell has a lower priority than the Hybrid Automatic Repeat Request (HARQ) - Determine ACK information; and / or,

[0247] The priority of CSI information for the first candidate cell is lower than that of scheduling request information.

[0248] In some possible examples, the CSI information of the first candidate cell includes information located in part 1 of the first CSI report and information located in part 2 of the first CSI report;

[0249] Information located in Part 1 of the first CSI report has a higher priority than information located in Part 2 of the first CSI report.

[0250] In some possible examples, the CSI information of the first candidate cell includes the CSI information of the candidate cell corresponding to the first identifier and the CSI information of the candidate cell corresponding to the second identifier, wherein the first identifier and the second identifier are respectively one of the candidate cell identifiers of the first candidate cell;

[0251] If the first identifier is less than the second identifier, then the priority of the CSI information of the candidate cell corresponding to the first identifier is higher than the priority of the CSI information of the candidate cell corresponding to the second identifier.

[0252] In some possible examples, the CSI information of the first candidate cell includes the CSI information of the candidate cell corresponding to the first beam information and the CSI information of the candidate cell corresponding to the second beam information, wherein the first beam information and the second beam information are one of the beam information of the candidate cells reported in the LTM report.

[0253] If the first beam information is greater than the second beam information, then the priority of the CSI information of the candidate cell corresponding to the first beam information is higher than the priority of the CSI information of the candidate cell corresponding to the second beam information.

[0254] In some possible examples, the CSI information of the first candidate cell includes both broadband CSI and subband CSI;

[0255] Broadband CSI has a higher priority than subband CSI.

[0256] In some possible examples, the CSI information of the first candidate cell includes the CSI information corresponding to the first sub-band number and the CSI information corresponding to the second sub-band number;

[0257] If the first sub-band number is less than the second sub-band number, then the priority of the CSI information corresponding to the first sub-band number is lower or higher than the priority of the CSI information corresponding to the second sub-band number.

[0258] In some possible examples, the CSI information of the first candidate cell includes the first PMI and the first CQI; if the first PMI and the first CQI are in part 1 or part 2 of the first CSI report, then the priority of the first PMI is lower or higher than the priority of the first CQI.

[0259] In some possible examples, the CSI information of the first candidate cell includes a second PMI and a second CQI, with the second PMI having a lower or higher priority than the second CQI.

[0260] Fourthly, a communication device according to this application includes:

[0261] The sending unit is used to send first configuration information, which is used to configure the CSI measurement reporting of candidate cells that trigger mobility LTM in layer 1 or layer 2.

[0262] The receiving unit is configured to receive a first CSI report according to the first configuration information. The first CSI report is used to report the CSI information of a first candidate cell, which includes one or more candidate cells.

[0263] The sending unit is used to send a cell handover command, which is used to indicate a handover from the serving cell to a candidate cell in the first candidate cell.

[0264] In some possible examples, the first configuration information includes first reference signal resource configuration information and first CSI report configuration information, wherein the first CSI report configuration information is associated with the first reference signal resource configuration information;

[0265] The first reference signal resource configuration information is used to configure the reference signal resources of candidate cells in LTM;

[0266] The first CSI report configuration information is used to configure the CSI reporting of candidate cells for LTM.

[0267] In some possible examples, the first reference signal resource configuration information includes a list of reference signal resource sets and a list of candidate cell identifiers; or,

[0268] The first reference signal resource configuration information includes a reference signal resource set, and the reference signal resource set information includes candidate cell identifier information; or...

[0269] The first reference signal resource configuration information includes reference signal resource set information and candidate cell identifier information; or...

[0270] The first reference signal resource configuration information includes reference signal resource set information, which in turn includes a reference signal resource list and a candidate cell identifier list; or...

[0271] The first reference signal resource configuration information includes candidate cell identifier information; or...

[0272] The first reference signal resource configuration information includes a reference signal resource list and a candidate cell identifier list; or...

[0273] The first reference signal resource configuration information includes reference signal resource information and candidate cell identifier information.

[0274] In some possible examples, the CSI information of the first candidate cell includes the candidate cell identifier and / or the CSI of the first candidate cell;

[0275] The CSI of the first candidate cell includes at least one of the following: CSI Reference Signal Resource Indicator (CRI) of the first candidate cell, Synchronization Signal Block Resource Indicator (SSBRI) of the first candidate cell, Rank Indicator (RI) of the first candidate cell, Precoding Matrix Indicator (PMI) of the first candidate cell, Channel Quality Indicator (CQI) of the first candidate cell, or Layer Indicator (LI) of the first candidate cell.

[0276] In some possible examples, the CSI of the first candidate cell is determined by the reporting parameters corresponding to the first CSI report;

[0277] The parameters reported in the first CSI report include at least one of the following: first parameter, second parameter, third parameter, fourth parameter, fifth parameter, or sixth parameter;

[0278] The first parameter indicator is CRI, the second parameter indicator is SSBRI, the third parameter indicator is RI, the fourth parameter indicator is PMI, the fifth parameter indicator is CQI, and the sixth parameter indicator is LI.

[0279] In some possible examples, the reporting parameters corresponding to the first CSI report are indicated by the first configuration information; or,

[0280] The reporting parameters for the first CSI report are specified by default settings or standard protocols.

[0281] In some possible examples, the candidate cell identifiers of the first candidate cell are arranged in the first CSI report in ascending or descending order of their candidate cell identifiers; or,

[0282] The candidate cell identifiers for the first candidate cell are arranged in the first CSI report according to the order of the beam information of the candidate cells in the LTM report; or,

[0283] The candidate cell identifiers of the first candidate cells are arranged in the first CSI report in ascending or descending order of the CSI of the first candidate cells.

[0284] In some possible examples, the CSIs of the first candidate cell are arranged in the first CSI report in ascending or descending order of the candidate cell identifiers; or,

[0285] The CSI of the first candidate cell is arranged in the first CSI report according to the order of the beam information of the candidate cells in the LTM report; or...

[0286] The CSIs of the first candidate cells are arranged in the first CSI report in ascending or descending order of their CSI values.

[0287] In some possible examples, the candidate cell identifier of the first candidate cell is located in part 1 or part 2 of the first CSI report; or,

[0288] The CSI of the first candidate cell is in part 1 or part 2 of the first CSI report; or...

[0289] The candidate cell identifier of the first candidate cell is located in part 1 of the first CSI report, and the CSI of the first candidate cell is located in part 2 of the first CSI report; or,

[0290] The candidate cell identifier of the first candidate cell is located in part 2 of the first CSI report, and the CSI of the first candidate cell is located in part 1 of the first CSI report; or,

[0291] The number of candidate cells for the first candidate cell is in part 1 of the first CSI report, and the candidate cell identifier and CSI of the first candidate cell are in part 2 of the first CSI report; or,

[0292] The broadband CSI of the first candidate cell is in part 1 of the first CSI report, or the subband CSI of the first candidate cell is in part 2 of the first CSI report; or...

[0293] At least one of the following in the first CSI report is in part 1 of the first CSI report: RI, CRI, CQI of the first codeword, or the number of non-zero broadband amplitude coefficients per layer of the first candidate cell; and at least one of the following in the first CSI report is in part 2 of the first candidate cell: PMI, LI, or CQI of the second codeword.

[0294] In some possible examples, the CRI of the first candidate cell includes an absolute CRI and one or more differential CRIs corresponding to the absolute CRI; and / or,

[0295] The SSBRI of the first candidate cell includes an absolute SSBRI and one or more differential SSBRIs corresponding to the absolute SSBRI; and / or,

[0296] The RI of the first candidate cell includes an absolute RI and one or more differential RIs corresponding to the absolute RI; and / or,

[0297] The PMI of the first candidate cell includes an absolute PMI and one or more differential PMIs corresponding to the absolute PMI; and / or,

[0298] The CQI of the first candidate cell includes an absolute CQI and one or more differential CQIs corresponding to the absolute CQI; and / or,

[0299] The LI of the first candidate cell includes an absolute LI and one or more differential LIs corresponding to the absolute LI.

[0300] In some possible examples, the first candidate cell consists of L candidate cells, where L is a positive integer;

[0301] L is determined by network configuration, standard protocols, pre-configuration, or default settings;

[0302] L is less than or equal to the number of candidate cells that the terminal device can support for CSI measurement reporting.

[0303] In some possible examples, the first candidate cell consists of N candidate cells, where N is a positive integer;

[0304] N is less than or equal to Nmax, where Nmax represents the maximum number of candidate cells included in the first CSI report, and / or N is less than or equal to the number of candidate cells that the terminal device's capabilities support for CSI measurement reporting.

[0305] In some possible examples, the N candidate cells are the first N candidate cells in the first candidate cell sequence, which is obtained by sorting the candidate cells corresponding to the beam information in the LTM report in descending order; or,

[0306] N candidate cells are defined as N candidate cells whose beam information in the LTM report exceeds a first preset threshold; or,

[0307] N candidate cells, which are the first N candidate cells in the second candidate cell sequence. The second candidate cell sequence is obtained by sorting the candidate cells configured in the first configuration information according to the CSI of the candidate cells obtained from CSI measurement in descending order; or...

[0308] N candidate cells are those whose CSI values, obtained from CSI measurements, exceed a second preset threshold.

[0309] In some possible examples, the first CSI report has a higher priority than the second CSI report, which is used to report the CSI information of the serving cell.

[0310] In some possible examples, the priority of the first CSI report is calculated using the following formula:

[0311] Pri CSI (y, k, c, s) = 2·N cells ·M s ·y+N cells ·M s ·k+M s ·c+s;

[0312] Among them, Pri CSI (y, k, c, s) represents the priority of the first CSI report;

[0313] The value of y in the priority of the first CSI report is less than or equal to the value of y in the priority of the second CSI report, or the value of y in the priority of the first CSI report is less than or equal to the value of y in the priority of the second CSI report which has the same channel type and the same time domain type as the first CSI report. The second CSI report is used to report the CSI information of the serving cell.

[0314] In the priority of the first CSI report, the value of k is less than or equal to the value of k in the priority of the second CSI report, or the value of k in the priority of the first CSI report is 1;

[0315] c represents the cell identifier of the serving cell, or c represents the cell identifier of any candidate cell in the first candidate cells, or c represents the largest candidate cell identifier, the smallest candidate cell identifier, or any candidate cell identifier in the first candidate cells, or c represents the largest candidate cell identifier, the smallest candidate cell identifier, or any candidate cell identifier in the candidate cell set. The candidate cell set is one or more candidate cells where the reference signal configured by the reference signal resource configuration associated with the report configuration of the first CSI report is located.

[0316] 's' indicates the report configuration identifier for the first CSI report;

[0317] M s This represents the sum of the number of report configuration information used to configure the first CSI report and the number of report configuration information used to configure the LTM report, or M. s This represents the sum of the number of report configuration information used to configure the first CSI report, the number of report configuration information used to configure the LTM report, and the number of report configuration information used to configure the second CSI report.

[0318] N cells This represents the maximum number of serving cells, or N. cells This represents the sum of the maximum number of serving cells and the maximum number of candidate cells, or N. cells This indicates the maximum number of candidate cells.

[0319] In some possible examples, if the first candidate cell is a candidate cell of the primary cell, then c represents the cell identifier of the primary cell; or, c may be 0.

[0320] In some possible examples, the report configuration identifier of the first CSI report is smaller than the report configuration identifier of the second CSI report.

[0321] In some possible examples, the priority value of the first CSI report is lower than the priority value of the second CSI report; or,

[0322] If the priority value of the first CSI report is the same as the priority value of the second CSI report, then the priority of the first CSI report is higher than the priority of the second CSI report.

[0323] In some possible examples, the first CSI report has a lower priority than the LTM report, which is used to report beam information for candidate cells.

[0324] In some possible examples, the priority value of the first CSI report is greater than the priority value of the LTM report; or,

[0325] If the priority value of the first CSI report is the same as the priority value of the LTM report, then the priority of the first CSI report is lower than the priority of the LTM report.

[0326] The LTM report is used to report the beam information of candidate cells.

[0327] In some possible examples, if the priority value of the first CSI report is the same as the priority value of the third CSI report, the third CSI report is used to report the CSI information of the second candidate cell, and the beam information of the first candidate cell is greater than the beam information of the second candidate cell, then

[0328] The first CSI report has a higher priority than the third CSI report;

[0329] The second candidate cell includes one or more candidate cells.

[0330] In some possible examples, the CSI information of the first candidate cell has a lower priority than the Hybrid Automatic Repeat Request (HARQ) - Determine ACK information; and / or,

[0331] The priority of CSI information for the first candidate cell is lower than that of scheduling request information.

[0332] In some possible examples, the CSI information of the first candidate cell includes information located in part 1 of the first CSI report and information located in part 2 of the first CSI report;

[0333] Information located in Part 1 of the first CSI report has a higher priority than information located in Part 2 of the first CSI report.

[0334] In some possible examples, the CSI information of the first candidate cell includes the CSI information of the candidate cell corresponding to the first identifier and the CSI information of the candidate cell corresponding to the second identifier, wherein the first identifier and the second identifier are respectively one of the candidate cell identifiers of the first candidate cell;

[0335] If the first identifier is less than the second identifier, then the priority of the CSI information of the candidate cell corresponding to the first identifier is higher than the priority of the CSI information of the candidate cell corresponding to the second identifier.

[0336] In some possible examples, the CSI information of the first candidate cell includes the CSI information of the candidate cell corresponding to the first beam information and the CSI information of the candidate cell corresponding to the second beam information, wherein the first beam information and the second beam information are one of the beam information of the candidate cells reported in the LTM report.

[0337] If the first beam information is greater than the second beam information, then the priority of the CSI information of the candidate cell corresponding to the first beam information is higher than the priority of the CSI information of the candidate cell corresponding to the second beam information.

[0338] In some possible examples, the CSI information of the first candidate cell includes both broadband CSI and subband CSI;

[0339] Broadband CSI has a higher priority than subband CSI.

[0340] In some possible examples, the CSI information of the first candidate cell includes the CSI information corresponding to the first sub-band number and the CSI information corresponding to the second sub-band number;

[0341] If the first sub-band number is less than the second sub-band number, then the priority of the CSI information corresponding to the first sub-band number is lower or higher than the priority of the CSI information corresponding to the second sub-band number.

[0342] In some possible examples, the CSI information of the first candidate cell includes the first PMI and the first CQI; if the first PMI and the first CQI are in part 1 or part 2 of the first CSI report, then the priority of the first PMI is lower or higher than the priority of the first CQI.

[0343] In some possible examples, the CSI information of the first candidate cell includes a second PMI and a second CQI, with the second PMI having a lower or higher priority than the second CQI.

[0344] Fifthly, the steps in the method described in the first aspect above are applied to the terminal device.

[0345] Sixthly, the steps in the method described in the second aspect above are applied to network devices.

[0346] A seventh aspect is a terminal device according to this application, comprising a processor, a memory, and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the method described in the first aspect above.

[0347] Eighthly, a network device according to this application includes a processor, a memory, and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the method described in the second aspect above.

[0348] A ninth aspect is a chip according to this application, comprising a processor, wherein the processor performs the method described in the first or second aspect above.

[0349] A tenth aspect is a chip module according to this application, including a transceiver component and a chip, wherein the chip includes a processor, and the processor performs the steps in the methods involved in the first or second aspect above.

[0350] Eleventhly, there is a computer-readable storage medium according to this application, wherein the computer-readable storage medium stores a computer program or instructions, which, when executed, implement the steps in the methods involved in the first or second aspect above.

[0351] The twelfth aspect is a computer program product of this application, comprising a computer program or instructions, wherein, when executed, the computer program or instructions implement the steps in the methods involved in the first or second aspect described above. Exemplarily, the computer program product may be a software installation package.

[0352] It is worth noting that the beneficial effects of the technical solutions in aspects two through twelfth can be found in the technical effects of the technical solution in aspect one, and will not be repeated here. Attached Figure Description

[0353] Figure 1 This is a schematic diagram of the architecture of a communication system according to an embodiment of this application;

[0354] Figure 2 This is a schematic diagram of the architecture of another communication system according to an embodiment of this application;

[0355] Figure 3 This is a flowchart illustrating a communication method according to an embodiment of this application;

[0356] Figure 4 This is a functional unit block diagram of a communication device according to an embodiment of this application;

[0357] Figure 5This is a functional unit block diagram of another communication device according to an embodiment of this application;

[0358] Figure 6 This is a schematic diagram of the structure of a terminal device according to an embodiment of this application.

[0359] Figure 7 This is a schematic diagram of the structure of a network device according to an embodiment of this application. Detailed Implementation

[0360] It should be understood that the terms "first," "second," etc., used in the embodiments of this application are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, software, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may also include steps or units not listed, or may also include other steps or units inherent to these processes, methods, products, or devices.

[0361] The term "embodiment" as used in the embodiments of this application means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0362] In the embodiments of this application, "at least one" or "at least one item" refers to one or more, and "multiple" refers to two or more.

[0363] In the embodiments of this application, "and / or" describes the association relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. Among them, A and B can be singular or plural.

[0364] In the embodiments of this application, "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent the following seven cases: a, b, c, a and b, a and c, b and c, a, b, and c. Each of a, b, and c can be an element or a set containing one or more elements.

[0365] In the embodiments of this application, "equal to" can be used with "greater than" and is applicable to technical solutions used when "greater than" is used; it can also be used with "less than" and is applicable to technical solutions used when "less than" is used. When "equal to" is used with "greater than", it is not used with "less than"; when "equal to" is used with "less than", it is not used with "greater than".

[0366] In the embodiments of this application, the terms "of," "corresponding (relevant)," "corresponding," "associated (related)," and "mapped" may sometimes be used interchangeably. It should be noted that when no distinction is emphasized, the concepts or meanings expressed are consistent.

[0367] In the embodiments of this application, "network" can be expressed as the same concept as "system," and a communication system is a communication network.

[0368] In this application, "connection" refers to various connection methods, such as direct connection or indirect connection, to achieve communication between devices, and is not specifically limited thereto.

[0369] The communication system of this embodiment will be described below as an example.

[0370] Communication System

[0371] In some possible examples, the technical solutions of this application embodiment can be applied to various communication systems, such as: Long Term Evolution (LTE) systems, Advanced Long Term Evolution (LTE-A) systems, New Radio (NR) systems, evolution systems of NR systems, LTE-based access to unlicensed spectrum (LTE-U) systems, NR-based access to unlicensed spectrum (NR-U) systems, non-terrestrial networks (NTN) systems, Universal Mobile Telecommunications System (UMTS), 6th Generation (6G) communication systems, or other future communication systems, etc.

[0372] It should be noted that some communication systems support a limited number of user connections and are easy to implement. With the development of communication technology, the communication system of this application can also support device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, vehicle-to-everything (V2X) communication, or narrowband internet of things (NB-IoT) communication, etc.

[0373] In some possible examples, the communication system of this application can support beamforming, carrier aggregation (CA), dual connectivity (DC), or standalone (SA) deployment scenarios.

[0374] In some possible examples, the communication system of this application can support communication scenarios using unlicensed spectrum. In this embodiment, unlicensed spectrum can also be considered as shared spectrum. Alternatively, this embodiment can also be applied to licensed spectrum. Licensed spectrum can also be considered as non-shared spectrum.

[0375] For example, the network architecture of a communication system according to an embodiment of this application can be found in [reference needed]. Figure 1 .like Figure 1 As shown, the communication system 10 may include a network device 110 and a terminal device 120. The terminal device 120 can communicate with the network device 110 wirelessly.

[0376] certainly, Figure 1 This is merely an example of a network architecture for a communication system and does not constitute a limitation on the network architecture of the communication systems in the embodiments of this application. For example, the communication system 10 may also include servers or other devices, or the communication system 10 may include other network devices besides network device 110, or the communication system 10 may include other terminal devices besides terminal device 120.

[0377] The terminal devices and network devices mentioned in this embodiment are illustrated below.

[0378] Terminal equipment

[0379] In some possible examples, the terminal device can be a device with transceiver capabilities, and may also be referred to as a terminal, user equipment (UE), remote terminal equipment (relay UE), relay equipment (relay UE), access terminal equipment, user unit, user station, mobile station, mobile station, remote station, mobile device, user terminal equipment, smart terminal equipment, wireless communication equipment, user agent, or user device. It should be noted that a relay device is a terminal device capable of providing relay forwarding services to other terminal devices (including remote terminal devices).

[0380] For example, terminal devices can be mobile phones, tablets, computers with wireless transceiver capabilities, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminal devices in industrial control, wireless terminal devices in autonomous driving, wireless terminal devices in remote medical care, wireless terminal devices in smart grids, wireless terminal devices in transportation safety, wireless terminal devices in smart cities, or wireless terminal devices in smart homes, etc.

[0381] For example, a terminal device can be a cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, terminal device in next-generation communication systems (such as NR communication systems, 6G communication systems), or terminal device in a future public land mobile network (PLMN), etc., without specific limitations.

[0382] In some possible examples, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable, or vehicle-mounted; it can be deployed on water (such as on ships); or it can be deployed in the air (such as airplanes, balloons, and satellites). The terminal device may include a device with wireless communication capabilities, such as a chip system, chip, or chip module. For example, the chip system may include a chip, but may also include other discrete devices. The terminal device can be a chip, chip module, device, unit, etc., without specific limitations.

[0383] Network equipment

[0384] In some possible examples, the network device can be a transceiver device that can be used to communicate with terminal devices.

[0385] In some possible examples, the network device may include means for providing wireless communication capabilities to terminal devices, such as a chip system, a chip, or a chip module. For example, the chip system may include a chip or other discrete device. The network device provides services to a cell, and terminal devices within that cell can communicate with the network device through transmission resources (such as spectrum resources). This cell can be a macro cell, small cell, metro cell, micro cell, pico cell, or femto cell, etc.

[0386] In some possible examples, the network device has mobility characteristics; for example, the network device can be a mobile device. Optionally, the network device can be a satellite or a balloon station. For example, the satellite can be a low Earth orbit (LEO) satellite, a medium Earth orbit (MEO) satellite, a geostationary orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device can also be a base station located on land, water, or other similar locations.

[0387] In some possible examples, network devices may include access network devices and / or devices in the core network (CN).

[0388] The following provides examples of access network equipment and core network equipment.

[0389] Access network equipment

[0390] In some possible examples, access network equipment can be referred to as radio access network (RAN) nodes. The RAN can be a network composed of multiple RAN nodes (e.g., 5G-RAN nodes), implementing radio physical layer functions, resource scheduling and radio resource management, radio access control, and mobility management functions. The RAN can connect to the user plane function (UPF) via the user plane interface N3, and can be used to transmit data from terminal devices; the RAN can establish a control plane signaling connection with the access and mobility management function (AMF) via the control plane interface N2, and is used to implement functions such as radio access bearer control. RAN nodes can be any device with wireless transceiver capabilities, including but not limited to 5G node base (gNB), evolved node base (eNB), access point (AP), world interoperability for microwave access base station (WiMAX BS), transmission receiving point (TRP), wireless relay node, wireless backhaul node, master node (MN) in a dual connectivity architecture, and secondary node (SN) in a dual connectivity architecture, etc.

[0391] In some possible examples, the access network device can refer to a device used to communicate with a terminal device. For example, the access network device can be a base transceiver station (BTS) in a Global System for Mobile Communication (GSM) or Code Division Multiple Access (CDMA) system, a base station (nodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, an evolved node base (eNB) in an LTE system, a radio controller in a cloud radio access network (CRAN) scenario, or a relay station, access point, vehicle-mounted equipment, wearable device, and access network equipment in future 5G networks or future evolved PLMN networks, etc. The embodiments of this application are not limited to these.

[0392] In some possible examples, in 5G NR, the functionality of access network equipment is divided into two parts, known as centralized unit (CU) - distributed unit (DU) separation. From a protocol stack perspective, the CU includes the Radio Resource Control (RRC) layer and Packet Data Convergence Protocol (PDCP) layer of the LTE base station, while the DU includes the Radio Link Control (RLC) layer, Media Access Control (MAC) layer, and Physical (PHY) layer of the LTE base station. In a typical 5G base station deployment, the CU and DU are physically connected via fiber optic cable, and logically share a specially defined F1 interface for communication between them. Functionally, the CU is primarily responsible for radio resource control and configuration, inter-cell mobility management, and bearer management. The DU is primarily responsible for scheduling, physical signal generation, and transmission.

[0393] In some possible examples, the access network equipment can be a macro base station, micro base station, pico base station, small station, relay station, balloon station, etc.

[0394] Core network equipment

[0395] In some possible examples, core network equipment may include network elements that provide various functions. Here, "network element" can also be referred to as an entity, device, apparatus, or module, etc., without specific limitation. Furthermore, for ease of understanding and explanation, the description of "network element" is omitted in some descriptions. For example, a network exposure function (NEF) network element is abbreviated as NEF. In this case, "NEF" should be understood as a NEF network element or NEF entity. The following omits descriptions of similar cases.

[0396] For example, core network equipment may include a mobility management entity (MME), a broadcast multicast service center (BMSC), or corresponding functional entities in the 5G system, such as core network control plane (CP) or user plane (UP) network functions. The core network control plane can also be understood as the core network control plane function (CPF) entity.

[0397] In some possible examples, the network elements included in the core network equipment include at least one of the following: session management function (SMF), user plane function (UPF), policy control function (PCF), NEF, authentication server function (AUSF), unified data management (UDM), network slice selection function (NSSF), network repository function (NRF), unified data management (UDM), application function (AF), unified data repository (UDR), network data analytics function (NWDAF), service control point (SCP), network slice admission control function (NSACF), or network slice specific authentication and authorization function (NSSAAF).

[0398] It should be noted that terminal devices can connect to access network devices wirelessly, and access network devices can connect to core network devices wirelessly or via wired connections. Core network devices can connect to a data network (DN). Access network devices and core network devices can be independent physical devices, or the functions of core network devices and the logical functions of access network devices can be integrated into the same physical device. Alternatively, a single physical device can integrate some of the functions of core network devices and some of the functions of access network devices.

[0399] For example, Figure 2 This is a schematic diagram of the architecture of another communication system according to an embodiment of this application. Figure 2In the communication system 20, there are UE, (R)AN, UPF, DN, SMF, SCP, NSACF, AMF, AUSF, NSSAAF, AF, UDM, PCF, NRF, NEF, and NSSF. Specifically, the UE connects to the AMF via the N1 interface, the (R)AN connects to the UPF via the N2 interface, the UPF connects to the DN via the N6 interface, the UPF connects to other UPFs via the N9 interface, the UPF connects to the SMF via the N4 interface, the SMF connects to other network elements via the Nsmf interface, the AMF connects to other network elements via the Naamf interface, the AUSF connects to other network elements via the Nausf interface, the NSSAAF connects to other network elements via the Nnssaaf interface, the SCP connects to other network elements via the Nscp interface, the NSACF connects to other network elements via the Nnsacf interface, the AF connects to other network elements via the Naf interface, the UDM connects to other network elements via the Nudm interface, the PCF connects to other network elements via the Npcf interface, the NRF connects to other network elements via the Nnrf interface, the NEF connects to other network elements via the Nnef interface, and the NSSF connects to other network elements via the Nnssf interface.

[0400] It should be noted that, Figure 2 The names of the network elements included are merely names and do not limit the function of the network element itself. In 5G networks and other future networks, the aforementioned network elements may also have other names, without specific restrictions. For example, in 6G networks, some or all of the aforementioned network elements may use the terminology from 5G, or they may have other names, etc. This is explained uniformly here and will not be elaborated further below.

[0401] in addition, Figure 2 The various network elements in the network do not necessarily have to exist at the same time; the required network elements can be determined based on the needs. Figure 2 The connection relationships between the various network elements are not uniquely defined and can be adjusted according to requirements. It is understood that the aforementioned network elements or functions can be network components in hardware devices, software functions running on dedicated hardware, or virtualization functions instantiated on a platform (e.g., a cloud platform).

[0402] certainly, Figure 2 This is merely an example of a network architecture for a communication system and does not constitute a limitation on the network architecture of the communication systems in the embodiments of this application.

[0403] The communication system has been described above. The following is a detailed explanation of how the candidate cells of LTM are measured and reported before cell handover in this embodiment.

[0404] [Beam measurement reporting for LTM candidate cells]

[0405] In communication systems, different interfaces can define their own protocol stacks, and protocols can be layered, such as layer 1 (L1), layer 2 (L2), and layer 3 (L3). Layer 1 can refer to the physical layer protocol; layer 2 can refer to the data link layer, which may include the PDCP layer, radio link control (RLC) layer, and / or MAC layer; and layer 3 can refer to the network layer, which may include the RRC layer.

[0406] The Level-of-Track (LTM) mechanism was introduced in Release 18 (R18) of the 3rd Generation Partnership Project (3GPP). Compared to Layer 3 mobility management, LTM significantly improves cell handover latency and downtime. LTM refers to the process of reporting beam measurements only to LTM candidate cells before handover. This process can be detailed as follows:

[0407] First, network devices can configure one or more candidate cells to be measured and their corresponding synchronization signal blocks (SSBs) to terminal devices via higher-layer signaling. For example, network devices can configure candidate cells using the higher-layer parameter LTM-Candidate information and configure SSBs using the higher-layer parameter LTM-SSB-Config information. Additionally, network devices can configure an LTM report to the terminal device via higher-layer signaling. This LTM report configuration information includes the candidate cell information to be measured and the SSB information of each candidate cell. Then, the terminal device performs beam measurements on the candidate cells included in the LTM report configuration information to obtain the beam information corresponding to each candidate cell, and then reports the beam information of one or more candidate cells to the network device via the LTM report.

[0408] Taking the reporting of beam measurement data for a candidate cell by a terminal device as an example, the terminal device can perform beam measurement on the candidate cell based on the SSB corresponding to the candidate cell to obtain the beam information of the candidate cell, and then report the beam information of the candidate cell to the network device. The beam information of the candidate cell includes at least one of the following: the candidate cell identifier (ID), the SSB identifier corresponding to the candidate cell, or the beam measurement value of the candidate cell. The beam measurement value includes one of the following: reference signal received power (RSRP), signal-to-interference-plus-noise ratio (SINR), reference signal received quality (RSRQ), or received signal strength indicator (RSSI). RSRP can include Layer 1-RSRP (L1-RSRP), SINR can include Layer 1-SINR (L1-SINR), RSRQ can include Layer 1-RSRQ (L1-RSRQ), and RSSI can include Layer 1-RSSI (L1-RSSI).

[0409] Finally, the network device determines the target cell from the candidate cells based on the beam information reported by the terminal device, and instructs the terminal device on the target cell via a cell handover command. In this way, the terminal device can switch from the serving cell to the target cell according to the cell handover command.

[0410] Since LTM in 3GPP Release 18 only uses SSB to measure candidate cells, and SSB can typically only perform coarse beam measurements, this limits throughput performance in the target cell after cell handover. However, Channel State Information Reference Signal (CSI-RS) can measure more fine beams than SSB, enabling precise beam alignment between network and terminal devices. Furthermore, CSI-RS has more flexible time-frequency domain resources than SSB. Therefore, 3GPP Release 19 discusses LTM based on CSI-RS measurements, which involves beam measurement of candidate cells based on the CSI-RS resources corresponding to the candidate cells.

[0411] In summary, the beam information mentioned later in this embodiment may include at least one of the following: candidate cell identifier, LTM measurement resource identifier, or beam measurement value. The LTM measurement resource identifier may include SSB identifier or CSI-RS resource identifier.

[0412] It is worth noting that the “LTM report” mentioned in this embodiment can also be called “LTM-CSI report”, “LTM beam report”, “LTM L1-RSRP report”, “LTM-L1-SINR report”, “LTM-L1 report” or “CSI report”, etc., and there is no specific limitation on this.

[0413] [CSI measurement reporting for LTM candidate cells]

[0414] In LTM cell handover scenarios, currently only beam measurement reporting is performed on candidate LTM cells before handover, and CSI measurement reporting is performed on the new serving cell after handover is complete. Since channel scheduling for the new serving cell may not begin until both handover and CSI measurement reporting are complete, there is a certain delay in channel scheduling. If network equipment schedules channel transmission before CSI measurement reporting for the new serving cell, it may use conservative or outdated transmission parameters (such as precoding, channel coding rate, modulation order, etc.), failing to fully utilize transmission parameters that best match the channel conditions of the new serving cell, resulting in lower channel transmission performance for the new serving cell.

[0415] Based on this, this embodiment considers both beam measurement reporting and CSI measurement reporting for LTM candidate cells before cell handover.

[0416] In this way, compared to the schemes of only reporting beam measurements for candidate cells of LTM before cell handover and reporting CSI measurements for the new serving cell after cell handover, this embodiment reports CSI measurements for the new serving cell when reporting CSI measurements for candidate cells before cell handover. Therefore, after cell handover, it is not necessary to report CSI measurements for the new serving cell temporarily. This helps to reduce the latency of reporting CSI measurements for the new serving cell, so that the CSI information of the new serving cell can be applied in a timely manner when scheduling the channel of the new serving cell. The CSI information of the new serving cell can determine the transmission parameters that best match the channel conditions of the new serving cell, avoiding the use of conservative or outdated transmission parameters to schedule channel transmission.

[0417] The following example illustrates the process of reporting CSI measurements to candidate cells in LTM before cell handover, using the interaction between network devices and terminal devices as an example. The network device can be a communication device, chip, or chip assembly, etc., and the terminal device can be a communication device, chip, or chip assembly, etc.

[0418] like Figure 3 As shown, Figure 3This is a flowchart illustrating a communication method according to an embodiment of this application. The method includes the following steps:

[0419] S310. The network device sends first configuration information, which is used to configure the CSI measurement reporting of candidate cells in LTM.

[0420] Correspondingly, the terminal device receives the first configuration information.

[0421] S320. The terminal device sends a first CSI report according to the first configuration information. The first CSI report is used to report the CSI information of the first candidate cell. The first candidate cell includes one or more candidate cells.

[0422] Correspondingly, the network device receives the first CSI report.

[0423] It should be noted that the first CSI report is used to report the CSI information of the first candidate cell. This can be understood as the first CSI report containing or including the CSI information of the first candidate cell, or the first CSI report carrying the CSI information of the first candidate cell.

[0424] S330. The network device sends a cell handover command, which is used to indicate a handover from the serving cell to a candidate cell among the first candidate cells.

[0425] Correspondingly, the terminal device receives the cell handover command.

[0426] As can be seen, the network device in this embodiment can configure the CSI measurement reporting of candidate cells for LTM to the terminal device through the first configuration information, enabling the terminal device to perform CSI measurement reporting of candidate cells according to the first configuration information and send a first CSI report. Since the first CSI report is used to report the CSI information of the first candidate cell, the terminal device in this embodiment can use the first CSI report to feed back or report the CSI information of the candidate cell to the network device, thereby realizing the CSI measurement reporting of the candidate cell.

[0427] When a network device determines that a terminal device needs to hand over from the serving cell to one of the candidate cells in the first candidate cells, the network device sends a cell handover command to the terminal device, enabling the terminal device to perform the handover from the serving cell to the candidate cell according to the cell handover command. At this time, the candidate cell becomes the new serving cell.

[0428] In this way, since the terminal equipment will report the CSI measurement of the new serving cell when it performs CSI measurement and reporting on the first candidate cell before cell handover, it is not necessary to perform CSI measurement and reporting on the new serving cell again after the cell handover is completed. This helps to reduce the latency of CSI measurement and reporting on the new serving cell, so that the CSI information of the new serving cell can be applied in a timely manner when channel scheduling is performed on the new serving cell. The CSI information of the new serving cell can determine the transmission parameters that best match the channel conditions of the new serving cell, avoiding the use of conservative or outdated transmission parameters to schedule channel transmission.

[0429] Optionally, for CSI measurement reporting of candidate cells based on the first configuration information, the terminal device does not expect the number of candidate cells to be measured to exceed P, where P is a positive integer. For example, P can only be 1, or P can only be 2.

[0430] The following explains the beam measurement reporting for LTM candidate cells.

[0431] It should be noted that in the LTM cell handover scenario, before configuring the CSI measurement reporting of LTM candidate cells to the terminal device, the network device in this embodiment also needs to configure the beam measurement reporting of LTM candidate cells to the terminal device, such as configuring candidate cells, LTM measurement resources, and LTM reports. The network device in this embodiment can configure the beam measurement reporting of LTM candidate cells according to the content in the above-mentioned "Beam Measurement Reporting of LTM Candidate Cells," which will not be elaborated further.

[0432] For the configuration process of beam measurement reporting and CSI measurement reporting of candidate cells, the candidate cells configured in the former process (i.e., the configuration process of beam measurement reporting of candidate cells) may include all or part of the candidate cells configured in the latter process (i.e., the configuration process of CSI measurement reporting of candidate cells), or the candidate cells configured in the former process may be different from those configured in the latter process.

[0433] For example, if the candidate cells configured in the previous process include all or part of the candidate cells configured in the next process, the candidate cells configured in the previous process are candidate cell #0, candidate cell #1, candidate cell #2 and candidate cell #3, and the candidate cells configured in the next process are candidate cell #0, candidate cell #1 and candidate cell #3.

[0434] Among them, candidate cell #0 represents the candidate cell with candidate cell identifier 0, candidate cell #1 represents the candidate cell with candidate cell identifier 1, candidate cell #2 represents the candidate cell with candidate cell identifier 2, and candidate cell #3 represents the candidate cell with candidate cell identifier 3.

[0435] For example, if the candidate cells configured in the previous process are different from those configured in the next process, the candidate cells configured in the previous process are candidate cell #0 and candidate cell #1, while the candidate cells configured in the next process are candidate cell #2 and candidate cell #3.

[0436] In addition, before reporting the CSI information of the first candidate cell to the network device via the first CSI report, the terminal device in this embodiment also needs to report the beam information of some candidate cells to the network device via the LTM report. This beam information of the candidate cells may include the beam information of the first candidate cell, or it may not include the beam information of the first candidate cell. The beam information of the candidate cells may include at least one of the following: candidate cell identifier, LTM measurement resource identifier, or beam measurement value.

[0437] For example, if the candidate cells configured in the previous process include all or part of the candidate cells configured in the next process, the candidate cells configured in the previous process are candidate cell #0, candidate cell #1, candidate cell #2 and candidate cell #3, and the candidate cells configured in the next process are candidate cell #0, candidate cell #1 and candidate cell #3.

[0438] Then, after beam measurement and CSI measurement, the terminal device reports the beam information of candidate cell #0, candidate cell #1, candidate cell #2 and candidate cell #3 to the network device through LTM report, and reports the CSI information of candidate cell #0 and candidate cell #1 to the network device through first CSI report.

[0439] The beam information of candidate cell #0 may include at least one of the following: candidate cell identifier 0, LTM measurement resource identifier corresponding to candidate cell #0, or beam measurement value of candidate cell #0.

[0440] The beam information of candidate cell #1 may include at least one of the following: candidate cell identifier 1, LTM measurement resource identifier corresponding to candidate cell #1, or beam measurement value of candidate cell #1.

[0441] The beam information of candidate cell #2 may include at least one of the following: candidate cell identifier 2, LTM measurement resource identifier corresponding to candidate cell #2, or beam measurement value of candidate cell #2.

[0442] The beam information of candidate cell #3 may include at least one of the following: candidate cell identifier 3, LTM measurement resource identifier corresponding to candidate cell #3, or beam measurement value of candidate cell #3.

[0443] For example, if the candidate cells configured in the previous process are different from those configured in the next process, the candidate cells configured in the previous process are candidate cell #0 and candidate cell #1, while the candidate cells configured in the next process are candidate cell #2 and candidate cell #3.

[0444] Then, after beam measurement and CSI measurement, the terminal device reports the beam information of candidate cell #0 and candidate cell #1 to the network device through LTM report, and reports the CSI information of candidate cell #2 and candidate cell #3 to the network device through first CSI report.

[0445] In this way, the network device can determine the target cell from the candidate cells based on the beam information reported by the terminal device. If the target cell is the candidate cell with the best beam measurement value, the device can then indicate the target cell to the terminal device through a cell handover command, so that the terminal device can switch from the serving cell to the target cell according to the cell handover command.

[0446] The following is an example of the first configuration information.

[0447] In some possible examples, the network device configures CSI measurement reporting for candidate cells in the serving cell using LTM. Therefore, the network device sends first configuration information on the serving cell. Correspondingly, the terminal device receives the first configuration information on the serving cell.

[0448] It should be noted that when configuring CSI measurement reporting for candidate cells in LTM, the first CSI report is configured on the serving cell, and the reference signal resources associated with the first CSI report are configured on the serving cell and / or the candidate cell. Specifically, the reference signal resources corresponding to the serving cell are configured on the serving cell, and the reference signal resources corresponding to the candidate cell are configured on the candidate cell. Furthermore, the terminal device can send the first CSI report on the serving cell. Correspondingly, the network device receives the first CSI report on the serving cell. In this case, the cell where the first CSI report is located is the serving cell.

[0449] In some possible examples, the CSI measurement reporting of candidate cells in LTM includes the report configuration of the first CSI report and the reference signal resource configuration associated with the report configuration of the first CSI report. That is, the first configuration information needs to configure the first CSI report and the reference signal resources associated with the first CSI report. The purpose of associating the first CSI report with reference signal resources is that the CSI information reported or carried by the first CSI report is the CSI information of the candidate cells obtained by performing CSI measurements based on the reference signal resources associated with the first CSI report.

[0450] In some possible examples, the first configuration information includes the first reference signal resource configuration (RS-ResourceConfig) information and the first CSI report configuration (CSI-ReportConfig) information.

[0451] It should be noted that, unlike the reference signal resources used to configure the serving cell, the first reference signal resource configuration information in this embodiment can be used to configure the reference signal resources of candidate cells in LTM. The reference signal resources of candidate cells in LTM may include CSI-RS resources and / or SSB resources.

[0452] In this way, the terminal device can perform CSI measurements based on the reference signal resources configured in the first reference signal resource configuration information to obtain CSI information of some candidate cells. The CSI information of these candidate cells includes the CSI information of the first candidate cell.

[0453] For example, the first reference signal resource configuration information can configure the reference signal resources of candidate cell #0, candidate cell #1, and candidate cell #3. In this way, the terminal device can perform CSI measurements based on the reference signal resources of candidate cell #0 to obtain the CSI information of candidate cell #0, perform CSI measurements based on the reference signal resources of candidate cell #1 to obtain the CSI information of candidate cell #1, and perform CSI measurements based on the reference signal resources of candidate cell #2 to obtain the CSI information of candidate cell #2.

[0454] Unlike existing CSI report configuration information used to configure CSI reporting for the serving cell, the first CSI report configuration information in this embodiment can be used to configure CSI reporting for candidate cells in LTM. That is, the first CSI report configuration information can configure the first CSI report, or the first CSI report configuration information can be used for the reporting configuration of the first CSI report, or the first CSI report can be configured as the reporting configuration of the first CSI report.

[0455] Additionally, the first CSI report configuration information is associated with the first reference signal resource configuration information. In this case, the first reference signal resource configuration information is used for the reference signal resource configuration associated with the report configuration of the first CSI report, or the first reference signal resource configuration information is the reference signal resource configuration associated with the report configuration of the first CSI report. Thus, for the CSI information of the first candidate cell obtained by performing CSI measurements on the reference signal resources configured in the first reference signal resource configuration information, the terminal device can report the CSI information of the first candidate cell through the first CSI report configured in the first CSI report configuration information.

[0456] For example, the first CSI report configuration information includes reference signal resource configuration identification information. This reference signal resource configuration identification information can indicate the first reference signal resource configuration information. Thus, the first CSI report configuration information is associated with the first reference signal resource configuration information through the reference signal resource configuration identification information.

[0457] Optionally, the first CSI report configuration information includes codebook type information, which indicates a type I codebook.

[0458] It should be noted that there are many codebook types involved in current channel transmission processing, which leads to high complexity in channel transmission processing, channel estimation by terminal devices, or codebook calculation by terminal devices. Therefore, the network device in this embodiment can indicate only type I codebook through codebook type information, which helps to reduce the complexity in channel transmission processing, channel estimation by terminal devices, or codebook calculation by terminal devices.

[0459] Optionally, the terminal device expects the network device to be configured with a Type I codebook. This reduces the complexity of channel transmission processing, channel estimation by the terminal device, or codebook calculation by the terminal device.

[0460] Optionally, the maximum number of ports of the reference signal resources configured in the first reference signal resource configuration information is greater than 1 or 2.

[0461] Optionally, the number of ports corresponding to the reference signal resources configured in the first reference signal resource configuration information is less than or equal to a specific value (such as 32 ports).

[0462] Optionally, the terminal device does not expect the number of ports corresponding to the reference signal resources configured by the network device to be greater than a specific value, or the terminal device expects the number of ports corresponding to the reference signal resources configured by the network device to be less than or equal to a specific value.

[0463] Optionally, the first reference signal resource configuration information includes the reference signal resource set list (RS-ResourceSetList) and the candidate cell identifier list (CandidateCellIdList).

[0464] For example, the configuration information of the first reference signal resource can be represented as follows:

[0465] LTM-RS-ResourceConfig::=SEQUENCE{RS-ResourceSetList,CandidateCellIdList,…};

[0466] Among them, LTM-RS-ResourceConfig represents the first reference signal resource configuration information, RS-ResourceSetList represents the reference signal resource set list information, and CandidateCellIdList represents the candidate cell identifier list information.

[0467] It should be noted that the reference signal resource set list information can be used to configure the reference signal resource set list. The reference signal resource set list can include one or more reference signal resource sets, and each reference signal resource set includes one or more reference signal resources. In this way, one or more reference signal resource sets can be configured to the terminal device using the reference signal resource set list information.

[0468] The candidate cell identifier list information can be used to configure the candidate cell identifier list, which can include one or more candidate cell identifiers. In this way, one or more candidate cells can be configured to the terminal device using the candidate cell identifier list information.

[0469] In addition, the reference signal resource set configured in the reference signal resource set list information corresponds one-to-one with the candidate cell identifier configured in the candidate cell identifier list information.

[0470] For example, the reference signal resource set list information is configured with reference signal resource set #0, reference signal resource set #1, reference signal resource set #2, and reference signal resource set #3, and the candidate cell identifier list information is configured with candidate cell identifier 0, candidate cell identifier 0, candidate cell identifier 1, and candidate cell identifier 2. Specifically, reference signal resource set #0 corresponds to candidate cell identifier 0, reference signal resource set #1 corresponds to candidate cell identifier 0, reference signal resource set #2 corresponds to candidate cell identifier 1, and reference signal resource set #3 corresponds to candidate cell identifier 2. Thus, the candidate cell indicated by candidate cell identifier 0 corresponds to reference signal resource set #0 and reference signal resource set #1, the candidate cell indicated by candidate cell identifier 1 corresponds to reference signal resource set #2, and the candidate cell indicated by candidate cell identifier 2 corresponds to reference signal resource set #3.

[0471] Optionally, the first reference signal resource configuration information includes reference signal resource set information, which includes candidate cell identifier information.

[0472] For example, the configuration information of the first reference signal resource can be represented as follows:

[0473] LTM-RS-ResourceConfig::=SEQUENCE{RS-ResourceSet,…};

[0474] RS-ResourceSet::=SEQUENCE{CandidateCellId,…};

[0475] Among them, LTM-RS-ResourceConfig represents the first reference signal resource configuration information, RS-ResourceSet represents the reference signal resource set information, and CandidateCellId represents the candidate cell identifier information.

[0476] It should be noted that reference signal resource set information can be used to configure one or more reference signal resource sets, and a reference signal resource set can include one or more reference signal resources. Thus, one or more reference signal resource sets can be configured for the terminal device using the reference signal resource set information.

[0477] Candidate cell identifier information can be used to configure a candidate cell identifier. In this way, a candidate cell can be configured to the terminal device using the candidate cell identifier information.

[0478] In addition, the reference signal resource set configured in the reference signal resource set information corresponds to the candidate cell identifier configured in the candidate cell identifier information.

[0479] For example, the reference signal resource set configured in the reference signal resource set information is reference signal resource set #0, and the candidate cell identifier configured in the candidate cell identifier information is candidate cell identifier 0. Reference signal resource set #0 corresponds to candidate cell identifier 0. Thus, the candidate cell indicated by candidate cell identifier 0 corresponds to reference signal resource set #0.

[0480] Optionally, the first reference signal resource configuration information includes reference signal resource set information and candidate cell identifier information.

[0481] For example, the configuration information of the first reference signal resource can be represented as follows:

[0482] LTM-RS-ResourceConfig::=SEQUENCE{RS-ResourceSet,CandidateCellId,…};

[0483] Among them, LTM-RS-ResourceConfig represents the first reference signal resource configuration information, RS-ResourceSet represents the reference signal resource set information, and CandidateCellId represents the candidate cell identifier information.

[0484] It should be noted that reference signal resource set information can be used to configure one or more reference signal resource sets, and a reference signal resource set includes one or more reference signal resources. Thus, one or more reference signal resource sets can be configured for the terminal device using the reference signal resource set information.

[0485] Candidate cell identifier information can be used to configure a candidate cell identifier. In this way, a candidate cell can be configured to the terminal device using the candidate cell identifier information.

[0486] In addition, the reference signal resource set configured in the reference signal resource set information corresponds to the candidate cell identifier configured in the candidate cell identifier information.

[0487] For example, the reference signal resource set configured in the reference signal resource set information is reference signal resource set #0, and the candidate cell identifier configured in the candidate cell identifier information is candidate cell identifier 0. Reference signal resource set #0 corresponds to candidate cell identifier 0. Thus, the candidate cell indicated by candidate cell identifier 0 corresponds to reference signal resource set #0.

[0488] Optionally, the first reference signal resource configuration information includes reference signal resource set information, which includes reference signal resource list information and candidate cell identifier list information.

[0489] For example, the configuration information of the first reference signal resource can be represented as follows:

[0490] LTM-RS-ResourceConfig::=SEQUENCE{RS-ResourceSet,…};

[0491] RS-ResourceSet::=SEQUENCE{RS-ResourceList,CandidateCellIdList,…};

[0492] Among them, LTM-RS-ResourceConfig represents the first reference signal resource configuration information, RS-ResourceSet represents the reference signal resource set information, RS-ResourceList represents the reference signal resource list information, and CandidateCellIdList represents the candidate cell identifier list information.

[0493] It should be noted that the reference signal resource list information can be used to configure one or more reference signal resources, which together form a reference signal resource set. This reference signal resource set can be configured. Thus, one or more reference signal resources can be configured for the terminal device using the reference signal resource list information.

[0494] The candidate cell identifier list information can be used to configure the candidate cell identifier list, which can include one or more candidate cell identifiers. In this way, one or more candidate cells can be configured to the terminal device using the candidate cell identifier list information.

[0495] In addition, the reference signal resources configured in the reference signal resource list information correspond one-to-one with the candidate cell identifiers configured in the candidate cell identifier list information.

[0496] For example, the reference signal resource list information configured includes reference signal resource #0, reference signal resource #1, reference signal resource #2, and reference signal resource #3, and the candidate cell identifier list information configured includes candidate cell identifier 0, candidate cell identifier 1, and candidate cell identifier 2. Specifically, reference signal resource #0 corresponds to candidate cell identifier 0, reference signal resource #1 corresponds to candidate cell identifier 0, reference signal resource #2 corresponds to candidate cell identifier 1, and reference signal resource #3 corresponds to candidate cell identifier 2. Thus, the candidate cell indicated by candidate cell identifier 0 corresponds to reference signal resources #0 and #1, the candidate cell indicated by candidate cell identifier 1 corresponds to reference signal resource #2, and the candidate cell indicated by candidate cell identifier 2 corresponds to reference signal resource #3.

[0497] Optionally, the first reference signal resource configuration information includes candidate cell identification information.

[0498] For example, the configuration information of the first reference signal resource can be represented as follows:

[0499] LTM-RS-ResourceConfig::=SEQUENCE{CandidateCellId,…};

[0500] Among them, LTM-RS-ResourceConfig represents the first reference signal resource configuration information, and CandidateCellId represents the candidate cell identifier information.

[0501] It should be noted that the candidate cell identifier information can be used to configure a candidate cell identifier. This allows configuring a candidate cell to the terminal device. Furthermore, all reference signal resources configured in the first reference signal resource configuration information correspond to the candidate cell identifiers configured in the candidate cell identifier information.

[0502] For example, the reference signal resources configured in the first reference signal resource configuration information include reference signal resource #0, reference signal resource #1, reference signal resource #2, and reference signal resource #3, and the candidate cell identifier configured in the candidate cell identifier information is candidate cell identifier 0. Specifically, reference signal resources #0, #1, #2, and #3 all correspond to candidate cell identifier 0. Thus, the candidate cell indicated by candidate cell identifier 0 corresponds to reference signal resources #0, #1, #2, and #3.

[0503] Optionally, the first reference signal resource configuration information includes reference signal resource list information and candidate cell identifier list information.

[0504] For example, the configuration information of the first reference signal resource can be represented as follows:

[0505] LTM-RS-ResourceConfig::=SEQUENCE{RS-ResourceList,CandidateCellIdList,…};

[0506] Among them, LTM-RS-ResourceConfig represents the first reference signal resource configuration information, RS-ResourceList represents the reference signal resource list information, and CandidateCellIdList represents the candidate cell identifier list information.

[0507] It should be noted that the reference signal resource list information is used to configure one or more reference signal resources. Thus, one or more reference signal resources can be configured for the terminal device using the reference signal resource list information.

[0508] The candidate cell identifier list information can be used to configure the candidate cell identifier list, which can include one or more candidate cell identifiers. In this way, one or more candidate cells can be configured to the terminal device using the candidate cell identifier list information.

[0509] In addition, the reference signal resources configured in the reference signal resource list information correspond one-to-one with the candidate cell identifiers configured in the candidate cell identifier list information.

[0510] For example, the reference signal resource list information configured includes reference signal resource #0, reference signal resource #1, reference signal resource #2, and reference signal resource #3, and the candidate cell identifier list information configured includes candidate cell identifier 0, candidate cell identifier 1, and candidate cell identifier 2. Specifically, reference signal resource #0 corresponds to candidate cell identifier 0, reference signal resource #1 corresponds to candidate cell identifier 0, reference signal resource #2 corresponds to candidate cell identifier 1, and reference signal resource #3 corresponds to candidate cell identifier 2. Thus, the candidate cell indicated by candidate cell identifier 0 corresponds to reference signal resources #0 and #1, the candidate cell indicated by candidate cell identifier 1 corresponds to reference signal resource #2, and the candidate cell indicated by candidate cell identifier 2 corresponds to reference signal resource #3.

[0511] Optionally, the first reference signal resource configuration information includes reference signal resources and candidate cell identification information.

[0512] For example, the configuration information of the first reference signal resource can be represented as follows:

[0513] LTM-RS-ResourceConfig::=SEQUENCE{RS-Resource,CandidateCellId,…};

[0514] Among them, LTM-RS-ResourceConfig represents the first reference signal resource configuration information, RS-Resource represents the reference signal resource information, and CandidateCellId represents the candidate cell identifier information.

[0515] It should be noted that the reference signal resource information is used to configure a reference signal resource. Thus, a reference signal resource can be configured for the terminal device using the reference signal resource information.

[0516] Candidate cell identifier information can be used to configure a candidate cell identifier. In this way, a candidate cell can be configured to the terminal device using the candidate cell identifier information.

[0517] In addition, the reference signal resources configured in the reference signal resource information correspond to the candidate cell identifiers configured in the candidate cell identifier information.

[0518] For example, the reference signal resource list configured in the reference signal resource information is reference signal resource #0, and the candidate cell identifier list configured in the candidate cell identifier information is candidate cell identifier 0. Reference signal resource #0 corresponds to candidate cell identifier 0. Thus, the candidate cell indicated by candidate cell identifier 0 corresponds to reference signal resource #0.

[0519] The following is an example illustrating the CSI information of the first candidate cell.

[0520] In some possible examples, the CSI information of the first candidate cell includes the candidate cell identifier and / or the CSI of the first candidate cell.

[0521] In this way, when the CSI information of the first candidate cell includes the candidate cell identifier of the first candidate cell, the terminal device can report the candidate cell identifier of the first candidate cell to the network device through the first CSI report, so that the network device can know the candidate cell measured by the terminal device based on the reported candidate cell identifier.

[0522] When the CSI information of the first candidate cell includes the CSI of the first candidate cell, the terminal device can report the CSI of the first candidate cell to the network device through the first CSI report, so that the network device can know the CSI of the candidate cell measured by the terminal device.

[0523] It should be noted that, for the candidate cell identifier of the first candidate cell, when the first candidate cell includes one candidate cell, the candidate cell identifier of the first candidate cell includes the candidate cell identifier of that one candidate cell; when the first candidate cell includes multiple candidate cells, the candidate cell identifier of the first candidate cell includes the candidate cell identifier of each of the multiple candidate cells.

[0524] For the CSI of the first candidate cell, one possible implementation is as follows: the CSI of the first candidate cell may include at least one of the following:

[0525] The first candidate cell's CSI Reference Signal Resource Indicator (CSI-RS Resource Indicator, CRI), Synchronization Signal Block Resource Indicator (SSB Resource Indicator, SSBRI), Rank Indicator (RI), Precoding Matrix Indicator (PMI), Channel Quality Indicator (CQI), or Layer Indicator (LI).

[0526] It should be noted that CRI can indicate the CSI-RS resources recommended or selected by the terminal device, and SSBRI can indicate the SSB resources recommended or selected by the terminal device. RI can indicate the number of layers recommended or selected by the terminal device. The number of layers determines the codebook, with each layer corresponding to one codebook, and each codebook consisting of one or more codewords. PMI can represent the index of the codeword in the codebook recommended or selected by the terminal device, or quantized precoding information; one codeword corresponds to one precoding matrix. RI and PMI can collectively represent the number of layers and the precoding matrix recommended by the terminal device. CQI can represent the channel quality feedback from the terminal device to the network device.

[0527] It is worth noting that, for the CRI of the first candidate cell, when the first candidate cell includes one candidate cell, the CRI of the first candidate cell includes the CRI of that one candidate cell; when the first candidate cell includes multiple candidate cells, the CRI of the first candidate cell includes the CRI of each of the multiple candidate cells.

[0528] For the SSBRI of the first candidate cell, when the first candidate cell includes one candidate cell, the SSBRI of the first candidate cell includes the SSBRI of that one candidate cell; when the first candidate cell includes multiple candidate cells, the SSBRI of the first candidate cell includes the SSBRI of each of the multiple candidate cells.

[0529] For the RI of the first candidate cell, when the first candidate cell includes one candidate cell, the RI of the first candidate cell includes the RI of that one candidate cell; when the first candidate cell includes multiple candidate cells, the RI of the first candidate cell includes the RI of each of the multiple candidate cells.

[0530] For the PMI of the first candidate cell, when the first candidate cell includes one candidate cell, the PMI of the first candidate cell includes the PMI of that one candidate cell; when the first candidate cell includes multiple candidate cells, the PMI of the first candidate cell includes the PMI of each of the multiple candidate cells.

[0531] For the CQI of the first candidate cell, when the first candidate cell includes one candidate cell, the CQI of the first candidate cell includes the CQI of that one candidate cell; when the first candidate cell includes multiple candidate cells, the CQI of the first candidate cell includes the CQI of each of the multiple candidate cells.

[0532] For the RI of the first candidate cell, when the first candidate cell includes one candidate cell, the RI of the first candidate cell includes the RI of that one candidate cell; when the first candidate cell includes multiple candidate cells, the RI of the first candidate cell includes the RI of each of the multiple candidate cells.

[0533] Additionally, it should be noted that the CSI information of the first candidate cell may not include the identifier information of the first candidate cell. Instead, it can be carried only in the first CSI report, using the default order of the candidate cell identifier sizes or the reference signal resource information of the first candidate cell. Specifically, when only one candidate cell is measured, the first candidate cell is the candidate cell being measured, and in this case, the CSI information of the first candidate cell may not include its candidate cell identifier.

[0534] In some possible examples, the first CSI report will correspond to a report quantity, which can be used to determine the CSI of the first candidate cell reported in the first CSI report.

[0535] The parameters reported in the first CSI report include at least one of the following: first parameter, second parameter, third parameter, fourth parameter, fifth parameter, or sixth parameter;

[0536] The first parameter indicator is CRI, the second parameter indicator is SSBRI, the third parameter indicator is RI, the fourth parameter indicator is PMI, the fifth parameter indicator is CQI, and the sixth parameter indicator is LI.

[0537] For example, the reporting parameters corresponding to the first CSI report are represented as follows:

[0538] reportQuantity CHOICE{

[0539] none,

[0540] cri,

[0541] SSBRI,

[0542] RI,

[0543] PMI,

[0544] CQI,

[0545] LI,

[0546] cri-RI-PMI-CQI,

[0547] cri-RI,

[0548] cri-RI-CQI,

[0549] cri-RI-LI-PMI-CQI,

[0550] …

[0551] };

[0552] Among them, "reportQuantity" indicates the reporting parameters corresponding to the first CSI report, "none" indicates that no candidate cell CSI is reported, "cri" indicates CRI, "cri-RI-PMI-CQI" indicates CRI, RI, PMI and CQI, "cri-RI" indicates CRI and RI, "cri-RI-CQI" indicates CRI, RI and CQI, and "cri-RI-LI-PMI-CQI" indicates CRI, RI, LI, PMI and CQI.

[0553] Thus, when the reporting parameters corresponding to the first CSI report include "cri-RI-LI-PMI-CQI", the CSI of the first candidate cell reported in the first CSI report includes the CRI, RI, LI, PMI and CQI of the first candidate cell.

[0554] Optionally, the reporting parameters corresponding to the first CSI report are indicated by the first configuration information.

[0555] In this way, the network device can indicate the reporting parameters corresponding to the first CSI report to the terminal device through the first configuration information, so that the terminal device can determine the CSI of the first candidate cell based on the reporting parameters corresponding to the first CSI report.

[0556] For example, taking the first configuration information as including the first CSI report configuration information as an example, the first CSI report configuration information includes reportQuantity, which indicates the reporting parameter corresponding to the first CSI report.

[0557] Optionally, the reporting parameters for the first CSI report are specified by default settings or standard protocols.

[0558] In this way, the terminal device determines the CSI of the first candidate cell according to the reporting parameters corresponding to the first CSI report specified by the default settings or standard protocol.

[0559] For example, the default settings or standard protocols specify that the reporting parameters corresponding to the first CSI report include "cri-RI-PMI-CQI" or "cri-RI-LI-PMI-CQI".

[0560] The following example illustrates how to distinguish between the first CSI report and the LTM report.

[0561] It should be noted that, for LTM candidate cells, this embodiment involves beam measurement reporting and CSI measurement reporting of candidate cells. For ease of distinction and description, this embodiment introduces a first CSI report and an LTM report. The first CSI report can be a CSI report used to report CSI information of candidate cells, and the LTM report can be a CSI report used to report beam information of candidate cells.

[0562] One possible way to distinguish between the first CSI report and the LTM report is through network configuration, standard protocol specifications, pre-configuration, or default settings, where the reporting parameters for the LTM report are L1-RSRP or L1-SINR, and the reporting parameters for the first CSI report are not L1-RSRP or L1-SINR. In this way, the first CSI report and the LTM report are distinguished by the different reporting parameters corresponding to the CSI report.

[0563] For example, network devices can configure the reporting parameters corresponding to LTM reports to be L1-RSRP or L1-SINR through higher-layer signaling. However, network devices do not need to configure the reporting parameters corresponding to the first CSI report. Instead, the reporting parameters corresponding to the first CSI report are the default values, and the reporting parameters corresponding to the first CSI report are not L1-RSRP or L1-SINR. For example, the reporting parameters corresponding to the first CSI report are "cri-RI-PMI-CQI".

[0564] One possible way to distinguish between the first CSI report and the LTM report is through network configuration, standard protocol specifications, pre-configuration, or default settings, where the reporting parameters for the first CSI report are "cri-RI-LI-PMI-CQI" or "cri-RI-LI-PMI-CQI", and the reporting parameters for the LTM report are not "cri-RI-LI-PMI-CQI" or "cri-RI-LI-PMI-CQI". In this way, the first CSI report and the LTM report are distinguished by the different reporting parameters corresponding to the CSI report.

[0565] For example, network devices can configure the reporting parameters for the first CSI report to be "cri-RI-LI-PMI-CQI" or "cri-RI-LI-PMI-CQI" via higher-layer signaling. However, network devices do not need to configure the reporting parameters for the LTM report. Instead, the reporting parameters for the LTM report are the default values, and the reporting parameters for the LTM report are not "cri-RI-LI-PMI-CQI" or "cri-RI-LI-PMI-CQI". For example, the reporting parameters for the LTM report are L1-RSRP or L1-SINR.

[0566] One possible way to distinguish between the first CSI report and the LTM report is for the network device to indicate via signaling whether the CSI report is the first CSI report or the LTM report.

[0567] For example, add an indication to the CSI report configuration information that indicates whether the CSI report configured in the CSI configuration information is the first CSI report or the LTM report.

[0568] For example, if the CSI report configuration information contains an indication that instructs the candidate cell to report CSI measurements, then the CSI report configured in the CSI report configuration information is the first CSI report; if the CSI report configuration information does not contain this indication, then the CSI report configured in the CSI report configuration information is the LTM report.

[0569] For example, if the CSI report configuration information contains an indication that indicates the reporting of beam measurements for candidate cells, then the CSI report configured in the CSI report configuration information is an LTM report; if the CSI report configuration information does not contain this indication, then the CSI report configured in the CSI report configuration information is a first LTM report.

[0570] One possible implementation for distinguishing between the first CSI report and the LTM report is as follows: The first CSI report or the LTM report is determined based on the maximum number of ports of the reference signal resources configured in the reference signal resource configuration information associated with the CSI report configuration information. Specifically, the maximum number of ports of the reference signal resources configured in the reference signal resource configuration associated with the first CSI report is greater than the maximum number of ports of the reference signal resources configured in the reference signal resource configuration associated with the LTM report.

[0571] For example, if the maximum number of ports of the reference signal resources configured in the reference signal resource configuration information associated with the CSI report configuration information is greater than 1 or greater than 2, then the CSI report configured in the CSI report configuration information is the first CSI report; if the maximum number of ports of the reference signal resources configured in the reference signal resource configuration information associated with the CSI report configuration information is 1 or 2, then the CSI report configured in the CSI report configuration information is the LTM report.

[0572] The following example illustrates the ordering of candidate cell identifiers in the first CSI report for the first candidate cell.

[0573] It should be noted that when the candidate cell identifier of the first candidate cell needs to be reported to the network device through the first CSI report, and when the first candidate cell includes multiple candidate cells, the candidate cell identifier of the first candidate cell has a certain order in the first CSI report.

[0574] In some possible examples, the candidate cell identifiers of the first candidate cell are arranged in the first CSI report in ascending or descending order of the candidate cell identifiers of the first candidate cell.

[0575] It should be noted that, since there are no identical candidate cell identifiers among the different candidate cells in the first candidate cell, and there is a size relationship between the candidate cell identifiers, the network configuration, standard protocol provisions, default settings, pre-configuration, or terminal device autonomously determine as follows: arrange the candidate cell identifiers of the first candidate cell in the first CSI report in ascending or descending order of candidate cell identifiers.

[0576] For example, taking the candidate cell identifiers of the first candidate cell arranged in ascending order in the first CSI report as an example, assuming the first candidate cell includes candidate cell #0, candidate cell #1, and candidate cell #2, the order of the candidate cell identifiers of the first candidate cell in the first CSI report is shown in Table 1. In Table 1, the order of the candidate cell identifiers of the first candidate cell is: candidate cell identifier 0, candidate cell identifier 1, and candidate cell identifier 2.

[0577] Table 1

[0578]

[0579] In this way, network devices can interpret the candidate cell identifier of the first candidate cell in ascending or descending order of candidate cell identifiers.

[0580] In some possible examples, the candidate cell identifiers of the first candidate cell are arranged in the first CSI report according to the order of the beam information of the candidate cells in the LTM report.

[0581] It should be noted that since the terminal device needs to send an LTM report before sending the first CSI report, and the beam information of the candidate cells in the LTM report has a certain order (such as being carried in the LTM report in descending order of the beam information of the candidate cells), when the candidate cell corresponding to the beam information reported in the LTM report includes the first candidate cell, the network configuration, standard protocol provisions, default settings, pre-configuration, or the terminal device itself determines as follows: the candidate cell identifier of the first candidate cell is arranged in the first CSI report in the order of the beam information of the candidate cells in the LTM report.

[0582] For example, the candidate cells corresponding to the beam information reported in the LTM report include candidate cell #0, candidate cell #1, candidate cell #2 and candidate cell #3, and the first candidate cell includes candidate cell #0, candidate cell #1 and candidate cell #3, as shown in Tables 2 and 3.

[0583] In Table 2, the order of the beam information of the candidate cells in the LTM report is as follows: beam information of candidate cell #3, beam information of candidate cell #2, beam information of candidate cell #1, and beam information of candidate cell #0.

[0584] In Table 3, the candidate cell identifiers of the first candidate cell are arranged in the following order in the first CSI report: candidate cell identifier 3, candidate cell identifier 1, and candidate cell identifier 0.

[0585] Table 2

[0586]

[0587] Table 3

[0588]

[0589] In this way, network devices can interpret the candidate cell identifier of the first candidate cell according to the order of the beam information of the candidate cells in the LTM report.

[0590] In some possible examples, the candidate cell identifiers of the first candidate cell are arranged in the first CSI report in ascending or descending order of the first candidate cell's CSI.

[0591] It should be noted that the CSI of the first candidate cell can have different types, such as CRI, PMI, and RI. Furthermore, there is a size relationship between the same type of CSI from different candidate cells within the first candidate cell.

[0592] For example, taking the first candidate cell as including candidate cell #0, candidate cell #1, and candidate cell #2, the CSI of the first candidate cell includes the CRI of candidate cell #0, the CRI of candidate cell #1, the CRI of candidate cell #2, the PMI of candidate cell #0, the PMI of candidate cell #1, the PMI of candidate cell #2, the RI of candidate cell #0, the RI of candidate cell #1, and the RI of candidate cell #2, etc. Among these, the CRI of candidate cell #0, the CRI of candidate cell #1, and the CRI of candidate cell #2 are related in magnitude; the PMI of candidate cell #0, the PMI of candidate cell #1, and the PMI of candidate cell #2 are related in magnitude; and the RI of candidate cell #0, the RI of candidate cell #1, and the RI of candidate cell #2 are related in magnitude.

[0593] Therefore, the network configuration, standard protocol specifications, default settings, pre-configuration, or terminal device autonomously determine the following: Arrange the candidate cell identifiers of the first candidate cell in the first CSI report according to the CRI of the first candidate cell in ascending or descending order; or arrange the candidate cell identifiers of the first candidate cell in the first CSI report according to the SSBRI of the first candidate cell in ascending or descending order; or arrange the candidate cell identifiers of the first candidate cell in the first CSI report according to the RI of the first candidate cell in ascending or descending order; or arrange the candidate cell identifiers of the first candidate cell in the first CSI report according to the PMI of the first candidate cell in ascending or descending order; or arrange the candidate cell identifiers of the first candidate cell in the first CSI report according to the CQI of the first candidate cell in ascending or descending order; or arrange the candidate cell identifiers of the first candidate cell in the first CSI report according to the LI of the first candidate cell in ascending or descending order.

[0594] In this way, network devices can interpret the candidate cell identifier of the first candidate cell in ascending or descending order of the CSI of the first candidate cell.

[0595] The following example illustrates the ordering of the CSIs of the first candidate cell in the first CSI report.

[0596] It should be noted that when the CSI of the first candidate cell needs to be reported to the network equipment through the first CSI report, and when the first candidate cell includes multiple candidate cells, the CSI of the first candidate cell has a certain order in the first CSI report.

[0597] In addition, since the CSI of the first candidate cell can have different types, when sorting the CSI of the first candidate cell, the network configuration, standard protocol specifications, default settings, pre-configuration, or terminal device autonomously determine the following: the order of CSI of different types, and after the previous type of CSI is sorted, the next type of CSI is sorted.

[0598] For example, taking the first candidate cells as including candidate cell #0, candidate cell #1, candidate cell #2, and candidate cell #3, and assuming the standard protocol stipulates that CQI is ranked first and then PMI is ranked, as shown in Table 4. In Table 4, the CQI of the candidate cells is ranked first, and then the PMI of the candidate cells is ranked.

[0599] Table 4

[0600]

[0601] Table 5

[0602]

[0603] In some possible examples, the CSIs of the first candidate cell are arranged in the first CSI report in ascending or descending order of the candidate cell identifiers of the first candidate cell.

[0604] It should be noted that, since there are no identical candidate cell identifiers among the different candidate cells in the first candidate cell, and there is a size relationship between the candidate cell identifiers, the network configuration, standard protocol provisions, default settings, pre-configuration, or terminal device autonomously determine as follows: the CSIs of the first candidate cells are arranged in the first CSI report in ascending or descending order of the candidate cell identifiers.

[0605] For example, in Table 4 above, the order of candidate cell identifiers for the first candidate cell is: candidate cell identifier 0, candidate cell identifier 1, candidate cell identifier 2, and candidate cell identifier 3.

[0606] In this way, network devices can interpret the CSI of the first candidate cell in ascending or descending order of candidate cell identifiers.

[0607] In some possible examples, the CSI of the first candidate cell is arranged in the first CSI report according to the order of the beam information of the candidate cells in the LTM report.

[0608] It should be noted that since the terminal device needs to send an LTM report before sending the first CSI report, and the beam information of the candidate cells in the LTM report has a certain order, when the candidate cell corresponding to the beam information reported by the LTM report includes the first candidate cell, the network configuration, standard protocol provisions, default settings, pre-configuration, or the terminal device itself may determine as follows: arrange the CSI of the first candidate cell in the first CSI report according to the order of the beam information of the candidate cells in the LTM report.

[0609] For example, taking the candidate cells corresponding to the beam information reported in the LTM report, including candidate cell #0, candidate cell #1, candidate cell #2, and candidate cell #3, and the first candidate cell including candidate cell #0, candidate cell #1, and candidate cell #3, as an example, the arrangement order of the beam information of the candidate cells in the LTM report is shown in Table 2, and the arrangement order of the CSI of the first candidate cell in the first CSI report is shown in Table 5. In this way, network devices can interpret the CSI of the first candidate cell according to the order of the beam information of the candidate cells in the LTM report.

[0610] In some possible examples, the CSIs of the first candidate cell are arranged in the first CSI report in ascending or descending order of the CSIs of the first candidate cells.

[0611] It should be noted that, since there is a size relationship between the same type of CSI in different candidate cells in the first candidate cell, the network configuration, standard protocol provisions, default settings, pre-configuration, or terminal device autonomous determination are as follows: The CRI of the first candidate cell is arranged in the first CSI report in ascending or descending order of CRI; or the SSBRI of the first candidate cell is arranged in ascending or descending order of SSBRI; or the RI of the first candidate cell is arranged in ascending or descending order of RI; or the PMI of the first candidate cell is arranged in ascending or descending order of PMI; or the CQI of the first candidate cell is arranged in ascending or descending order of CQI; or the LI of the first candidate cell is arranged in ascending or descending order of LI.

[0612] In this way, network devices can receive the candidate cell identifiers of the first candidate cell in ascending or descending order of their CSIs.

[0613] The following example illustrates the candidate cell identifier and the sorting in the CSI of the first candidate cell.

[0614] It should be noted that when both the candidate cell identifier and the CSI of the first candidate cell need to be reported to the network equipment through the first CSI report, and when the first candidate cell includes multiple candidate cells, the candidate cell identifier and the CSI of the first candidate cell have a certain order in the first CSI report.

[0615] The order of the candidate cell identifiers of the first candidate cell in the first CSI report can be found in the example above, and will not be repeated here.

[0616] The ordering of the CSI of the first candidate cell in the first CSI report can be found in the example above, and will not be repeated here.

[0617] Regarding the order of the candidate cell identifier and the CSI of the first candidate cell in the first CSI report, the network configuration, standard protocol specifications, default settings, pre-configuration, or terminal device self-determination are as follows: first sort the candidate cell identifiers of the first candidate cell, and then sort the CSI of the first candidate cell; or, first sort the CSI of the first candidate cell, and then sort the candidate cell identifiers of the first candidate cell.

[0618] For example, taking the first candidate cell as including candidate cell #0, candidate cell #1, candidate cell #2, and candidate cell #3, assuming the standard protocol stipulates that the candidate cell identifiers are sorted first, followed by the CSIs, as shown in Table 6. In Table 6, the candidate cell identifiers of the first candidate cell are sorted first, and then the CSIs of the first candidate cell are sorted.

[0619] Table 6

[0620]

[0621] The following example illustrates that the first CSI report is a multi-part CSI report.

[0622] It should be noted that the first CSI report can be a multi-part CSI report. In specific implementation, the first CSI report can consist of two parts, namely Part 1 and Part 2. The payload size of Part 1 can be fixed, and Part 1 can be used to determine the number of information bits in Part 2, as well as the entire information of Part 1 that needs to be transmitted before Part 2.

[0623] Since the size of part 1 is fixed, while the size of part 2 is variable and depends on part 1, this application can consider the following implementation:

[0624] By placing some important information in part 1, even if part 2 is discarded, the terminal device can still report important information to the network device through part 1 for relevant reference, so as to avoid the loss of important information.

[0625] By placing some information that determines the size of part 2 in part 1, network devices can use this information to retrieve part 2, thereby avoiding blind retrieval of part 2 and improving retrieval efficiency.

[0626] By placing information with small amounts of data in Part 1 and information with large amounts of data in Part 2, network devices can quickly retrieve information from Part 1, which contains a small amount of data.

[0627] In some possible examples, the ordering of the candidate cell identifiers of the first candidate cell in part 1 or part 2 of the first CSI report can be implemented according to the various examples in "Ordering of the candidate cell identifiers of the first candidate cell in the first CSI report" above, which will not be repeated here.

[0628] In some possible examples, the ordering of the CSI of the first candidate cell in part 1 or part 2 of the first CSI report can be implemented according to the various examples in "Ordering of the CSI of the first candidate cell in the first CSI report" above, which will not be repeated here.

[0629] In some possible examples, the candidate cell identifier of the first candidate cell is located in part 1 of the first CSI report. This is because, when the candidate cell identifier of the first candidate cell is important information, or when the candidate cell identifier of the first candidate cell needs to be received first, the terminal device of this embodiment can put the candidate cell identifier of the first candidate cell into part 1, thereby helping to avoid the loss of important information, or avoid blind detection part 2, or receive information first.

[0630] In some possible examples, the candidate cell identifier of the first candidate cell is located in part 2 of the first CSI report. This is because, when the candidate cell identifier of the first candidate cell is unimportant information, or when the amount of information in the candidate cell identifier of the first candidate cell is large, or when the candidate cell identifier of the first candidate cell does not need to be received with priority, the terminal device of this embodiment can place the candidate cell identifier of the first candidate cell in part 2.

[0631] In some possible examples, the CSI of the first candidate cell is placed in part 1 of the first CSI report. This is because when the CSI of the first candidate cell is important information, or when the CSI of the first candidate cell needs to be received first, the terminal device of this embodiment can put the CSI of the first candidate cell into part 1, thereby helping to avoid the loss of important information, or avoid blind detection part 2, or to receive information first.

[0632] In some possible examples, the CSI of the first candidate cell is placed in part 2 of the first CSI report. This is because when the CSI of the first candidate cell is unimportant information, or the amount of information in the CSI of the first candidate cell is large, or the amount of information in the CSI of the first candidate cell does not need to be received first, the terminal device of this embodiment can put the CSI of the first candidate cell into part 2.

[0633] In some possible examples, the candidate cell identifier of the first candidate cell is located in part 1 of the first CSI report, and the CSI of the first candidate cell is located in part 2 of the first CSI report. This is because when the candidate cell identifier of the first candidate cell is important information or needs to be received with priority, and when the amount of information in the CSI of the first candidate cell is large or does not need to be received with priority, the terminal device of this embodiment can place the candidate cell identifier of the first candidate cell in part 1 and the CSI of the first candidate cell in part 2.

[0634] In some possible examples, the CSI of the first candidate cell is located in part 1 of the first CSI report, and the candidate cell identifier of the first candidate cell is located in part 2 of the first CSI report. This is because, when the CSI of the first candidate cell is important information or needs to be received with priority, and the candidate cell identifier of the first candidate cell is unimportant information or does not need to be received with priority, the terminal device of this embodiment can place the CSI of the first candidate cell in part 1 and the candidate cell identifier of the first candidate cell in part 2.

[0635] In some possible examples, the number of candidate cells for the first candidate cell is in part 1 of the first CSI report, and the candidate cell identifier and the CSI of the first candidate cell are in part 2 of the first CSI report.

[0636] This is because, when the number of candidate cells of the first candidate cell needs to be received first, and the candidate cell identifier and the CSI of the first candidate cell do not need to be received first, the terminal device in this embodiment can put the number of candidate cells of the first candidate cell into part 1, and put the candidate cell identifier and the CSI of the first candidate cell into part 2.

[0637] In some possible examples, the broadband CSI of the first candidate cell is in part 1 of the first CSI report, or the subband CSI of the first candidate cell is in part 2 of the first CSI report.

[0638] It should be noted that network devices can configure broadband CSI or subband CSI via higher-layer signaling. For example, PMI format indicator information can be configured as broadband PMI or subband PMI, and CQI format indicator information can be configured as broadband CQI or subband CQI. Therefore, the terminal device in this embodiment can place the broadband CSI of the first candidate cell in part 1, or place the subband CSI of the first candidate cell in part 2.

[0639] In some possible examples, at least one of the following is included in part 1 of the first CSI report: the RI, CRI, CQI of the first codeword, or the number of non-zero wideband amplitude coefficients at each layer; and at least one of the following is included in part 2 of the first CSI report: the PMI, LI, or CQI of the second codeword.

[0640] It should be noted that this embodiment can support both Type I CSI feedback and Type II ICSI feedback.

[0641] The basic principle of Type I CSI feedback is that the terminal device can match the codebook specified by the protocol with the estimated channel, select the codebook that best matches the channel, and then feed back the index corresponding to the codebook to the network device.

[0642] The basic principle of Type I ICSI feedback is to use high-resolution CSI feedback to process the estimated channel and then feed back the processed information, including the quantization of amplitude and phase.

[0643] For Type I CSI feedback, part 1 may include at least one of the following: RI (if reported), CRI (if reported), or CQI (if reported) of the first candidate cell; part 2 may include at least one of the following: PMI (if reported), CQI (if reported) of the second codeword when RI (if reported) is greater than 4, or LI (if reported).

[0644] For Type IICSI feedback, Part 1 may include at least one of the following: the RI (if reported), CQI (if reported), or an indication of the number of non-zero wideband amplitude coefficients per layer of Type IICSI (if reported). The fields in Part 1 (RI, CQI, and indication of the number of non-zero wideband amplitude coefficients per layer) are encoded separately. Part 2 may include the PMI and LI of Type IICSI. Parts 1 and 2 are encoded separately.

[0645] The following examples illustrate the use of absolute and differential formats in the content of the first CSI report.

[0646] In some possible examples, the CRI of the first candidate cell includes an absolute CRI and one or more differential CRIs corresponding to the absolute CRI.

[0647] It should be noted that when the first candidate cell includes a candidate cell, the CRI of that candidate cell can be an absolute CRI.

[0648] When the first candidate cell includes multiple candidate cells, the largest or smallest CRI among the multiple candidate cells can be an absolute CRI. In this case, for the other CRIs among the multiple candidate cells besides the absolute CRI, the terminal device in this embodiment can calculate the difference between each of the other CRIs and the absolute CRI to obtain at least one differential CRI, that is, at least one differential CRI corresponding to the absolute CRI. In other words, a differential CRI represents the difference between the absolute CRI and one of the other CRIs.

[0649] In some possible examples, the SSBRI of the first candidate cell includes an absolute SSBRI and one or more differential SSBRIs corresponding to the absolute SSBRI.

[0650] It should be noted that when the first candidate cell includes a candidate cell, the SSBRI of that candidate cell can be an absolute SSBRI.

[0651] When the first candidate cell includes multiple candidate cells, the largest or smallest SSBRI among the multiple candidate cells can be an absolute SSBRI. In this case, for the other SSBRIs among the multiple candidate cells besides the absolute SSBRI, the terminal device in this embodiment can calculate the difference between each of the other SSBRIs and the absolute SSBRI to obtain at least one differential SSBRI, that is, at least one differential SSBRI corresponding to the absolute SSBRI. In other words, a differential SSBRI represents the difference between the absolute SSBRI and one of the other SSBRIs.

[0652] In some possible examples, the RI of the first candidate cell includes an absolute RI and one or more differential RIs corresponding to the absolute RI.

[0653] It should be noted that when the first candidate cell includes a candidate cell, the RI of that candidate cell can be an absolute RI.

[0654] When the first candidate cell includes multiple candidate cells, the largest or smallest RI among the multiple candidate cells can be an absolute RI. In this case, for the other RIs among the multiple candidate cells besides the absolute RI, the terminal device in this embodiment can calculate the difference between each of the other RIs and the absolute RI to obtain at least one differential RI, that is, at least one differential RI corresponding to the absolute RI. In other words, a differential RI represents the difference between the absolute RI and one of the other RIs.

[0655] In some possible examples, the PMI of the first candidate cell includes an absolute PMI and one or more differential PMIs corresponding to the absolute PMI.

[0656] It should be noted that when the first candidate cell includes a candidate cell, the PMI of that candidate cell can be an absolute PMI.

[0657] When the first candidate cell includes multiple candidate cells, the largest or smallest PMI among the multiple candidate cells can be an absolute PMI. In this case, for the other PMIs among the multiple candidate cells besides the absolute PMI, the terminal device in this embodiment can calculate the difference between each of the other PMIs and the absolute PMI to obtain at least one differential PMI, that is, at least one differential PMI corresponding to the absolute PMI. In other words, a differential PMI represents the difference between the absolute PMI and one of the other PMIs.

[0658] In some possible examples, the CQI of the first candidate cell includes an absolute CQI and one or more differential CQIs corresponding to the absolute CQI.

[0659] It should be noted that when the first candidate cell includes a candidate cell, the CQI of that candidate cell can be an absolute CQI.

[0660] When the first candidate cell includes multiple candidate cells, the largest or smallest CQI among the multiple candidate cells can be an absolute CQI. In this case, for the other CQIs among the multiple candidate cells besides the absolute CQI, the terminal device in this embodiment can calculate the difference between each of the other CQIs and the absolute CQI to obtain at least one differential CQI, that is, at least one differential CQI corresponding to the absolute CQI. In other words, a differential CQI represents the difference between the absolute CQI and one of the other CQIs.

[0661] In some possible examples, the LI of the first candidate cell includes an absolute LI and one or more differential LIs corresponding to the absolute LI.

[0662] It should be noted that when the first candidate cell includes a candidate cell, the LI of that candidate cell can be an absolute LI.

[0663] When the first candidate cell includes multiple candidate cells, the largest or smallest LI among the multiple candidate cells can be an absolute LI. In this case, for the other LIs among the multiple candidate cells besides the absolute LI, the terminal device in this embodiment can calculate the difference between each of the other LIs and the absolute LI to obtain at least one differential LI, that is, at least one differential LI corresponding to the absolute LI. In other words, a differential LI represents the difference between the absolute LI and one of the other LIs.

[0664] The following is an example illustrating the first candidate cell.

[0665] In some possible examples, the first candidate cell is L candidate cells, where L is a positive integer; L is specified by network configuration, standard protocol, pre-configuration, or default setting; L is less than or equal to the number of candidate cells that the terminal device's capabilities support for CSI measurement reporting.

[0666] It should be noted that the number of candidate cells for CSI measurement reporting is L, which is specified by network configuration, standard protocols, pre-configuration, or the default setting. In this way, the terminal device only needs to perform CSI measurement reporting on L candidate cells from the candidate cells configured in the first configuration information, and report the CSI information of the L candidate cells to the network device through the first CSI report.

[0667] In addition, since L is less than or equal to the number of candidate cells that the terminal device can support for CSI measurement reporting, the terminal device is capable of performing CSI measurement reporting on L candidate cells.

[0668] In some possible examples, the first candidate cell is N candidate cells, where N is a positive integer; N is less than or equal to Nmax, where Nmax represents the maximum number of candidate cells included in the first CSI report, and / or N is less than or equal to the number of candidate cells that the terminal device's capabilities support for CSI measurement reporting;

[0669] It should be noted that the terminal device can determine N candidate cells from the candidate cells configured in the first configuration information. That is, the terminal device determines the N candidate cells and performs CSI measurement reporting on the N candidate cells, as long as N is less than or equal to Nmax and / or N is less than or equal to the number of candidate cells supported by the terminal device's CSI measurement reporting capability. Among them, Nmax can be defined by network configuration, standard protocol, pre-configuration, or default setting, and Nmax can be greater than the number of candidate cells supported by the terminal device's CSI measurement reporting capability.

[0670] Thus, since N is less than or equal to Nmax, the first CSI report can include or carry CSI information for N candidate cells, enabling successful reporting of CSI information for all N candidate cells. Furthermore, since N is less than or equal to the number of candidate cells supported by the terminal device's capabilities for CSI measurement reporting, the terminal device is capable of performing CSI measurement reporting for all N candidate cells.

[0671] For N candidate cells to be determined by the terminal device, one possible approach is as follows: The terminal device can sort the candidate cells corresponding to the beam information in the LTM report from largest to smallest to obtain a first candidate cell sequence, and then determine the top N candidate cells from this first candidate cell sequence. Simultaneously, these top N candidate cells must also be among the candidate cells configured in the first configuration information. In this way, the terminal device can perform CSI measurements and report from these top N candidate cells.

[0672] In other words, the N candidate cells are the first N candidate cells in the first candidate cell sequence. The first candidate cell sequence is obtained by sorting the candidate cells corresponding to the beam information in the LTM report from largest to smallest. Or, the N candidate cells are the first N candidate cells determined by sorting the beam information in the LTM report from largest to smallest.

[0673] It should be noted that the order of beam information in the LTM report from largest to smallest may include the order of beam measurements of candidate cells in the LTM report from largest to smallest.

[0674] For example, taking the candidate cells corresponding to the beam information in the LTM report as candidate cell #0, candidate cell #1, candidate cell #2, and candidate cell #3 as an example, the beam measurement values ​​in the LTM report, from largest to smallest, are: beam measurement value of candidate cell #2, beam measurement value of candidate cell #3, beam measurement value of candidate cell #1, and beam measurement value of candidate cell #0. In this case, the first candidate cell sequence is candidate cell #2, candidate cell #3, candidate cell #1, and candidate cell #0. Assuming N is 2, the terminal device determines the first two candidate cells in the first candidate cell sequence as candidate cell #2 and candidate cell #3, and reports CSI measurements for candidate cell #2 and candidate cell #3.

[0675] For N candidate cells to be determined by the terminal device, one possible approach is: the terminal device determines N candidate cells from those whose beam information in the LTM report exceeds a first preset threshold. In other words, the N candidate cells are those whose beam information in the LTM report exceeds the first preset threshold. Furthermore, these N candidate cells must also be from the candidate cells configured in the first configuration information.

[0676] It should be noted that beam information in the LTM report exceeding the first preset threshold can include beam measurement values ​​in the LTM report exceeding the first preset threshold. The first preset threshold can represent a preset beam measurement value threshold, which can be specified by network configuration, standard protocols, pre-configured, or a default setting.

[0677] In addition, the first preset threshold will be different for different types of beam measurements. For example, for RSRP, the first preset threshold represents the preset RSRP threshold; for SINR, the first preset threshold represents the preset SINR threshold; for RSRQ, the first preset threshold represents the preset RSRQ threshold; and for RSSI, the first preset threshold represents the preset RSSI threshold.

[0678] For example, taking a preset RSRP threshold as an example, the LTM report includes the RSRP of candidate cell #0, candidate cell #1, candidate cell #2, and candidate cell #3. Among these, the RSRPs of candidate cell #0, candidate cell #1, and candidate cell #2 all exceed the preset RSRP threshold. Assuming N is 2, the terminal device determines candidate cell #1 and candidate cell #2 from the RSRPs of candidate cell #0, candidate cell #1, and candidate cell #2, and then performs CSI measurements and reports for candidate cell #1 and candidate cell #2.

[0679] It is worth noting that when the beam information in the LTM report does not exceed the first preset threshold of candidate cells, or when the beam information in the LTM report exceeds the first preset threshold of fewer than N candidate cells, the terminal device can determine at least one candidate cell from the candidate cells corresponding to the beam information in the LTM report to perform CSI measurement reporting, or the terminal device can determine N candidate cells from the candidate cells configured in the first configuration information, or the terminal device does not perform CSI measurement reporting.

[0680] For N candidate cells to be determined by the terminal device, one possible approach is as follows: The terminal device can perform CSI measurements on the candidate cells configured in the first configuration information. Based on the descending order of the CSI values ​​obtained from the CSI measurements, the candidate cells configured in the first configuration information are sorted to obtain a second candidate cell sequence. The top N candidate cells are then determined from this second candidate cell sequence. In this way, the terminal device can report the CSI values ​​of these top N candidate cells.

[0681] In other words, the N candidate cells are the first N candidate cells in the second candidate cell sequence. The second candidate cell sequence is obtained by sorting the candidate cells configured in the first configuration information according to the CSI of the candidate cells obtained from CSI measurement in descending order. Or, the N candidate cells are the first N candidate cells determined after sorting the candidate cells obtained from CSI measurement in descending order of their CSI.

[0682] It should be noted that the order of CSI of candidate cells from largest to smallest may include the order of CRI of candidate cells from largest to smallest, or the order of SSBRI of candidate cells from largest to smallest, or the order of RI of candidate cells from largest to smallest, or the order of PMI of candidate cells from largest to smallest, or the order of CQI of candidate cells from largest to smallest, or the order of LI of candidate cells from largest to smallest.

[0683] For N candidate cells to be determined by the terminal device, one possible approach is as follows: The terminal device can perform CSI measurements on the candidate cells configured in the first configuration information, and determine N candidate cells from those candidate cells whose CSI values ​​obtained from the CSI measurements exceed a second preset threshold. In other words, the N candidate cells are those N candidate cells determined when the CSI values ​​obtained from the CSI measurements exceed the second preset threshold.

[0684] It should be noted that the second preset threshold can represent the preset CSI threshold, which can be specified by network configuration, standard protocol, pre-configuration, or default setting.

[0685] Furthermore, the second preset threshold will differ for different types of CSI. For example, for CRI, the second preset threshold represents the preset CRI threshold; for SSBRI, the second preset threshold represents the preset SSBRI threshold; for RI, the second preset threshold represents the preset RI threshold; for PMI, the second preset threshold represents the preset PMI threshold; for CQI, the second preset threshold represents the preset CQI threshold; and for LI, the second preset threshold represents the preset LI threshold.

[0686] It is worth noting that when there are no candidate cells whose CSI values ​​obtained from CSI measurement exceed the second preset threshold, or when there are fewer than N candidate cells whose CSI values ​​obtained from CSI measurement exceed the second preset threshold, the terminal device may determine at least one candidate cell's CSI from the candidate cells configured in the first configuration information and report it, or the terminal device may not perform CSI measurement and reporting.

[0687] The following example illustrates the priority of the first CSI report.

[0688] Regarding the priority of the first CSI report, one possible implementation is as follows: network configuration, standard protocol specifications, or default settings are as follows: the priority of the first CSI report is higher than the priority of the second CSI report, and the second CSI report is used to report the CSI information of the serving cell.

[0689] Thus, since the first CSI report has a higher priority than the second CSI report, the first CSI report can be sent before the second CSI report.

[0690] One possible implementation for prioritizing the first CSI report is as follows: the priority of the first CSI report is calculated using the following formula:

[0691] Pri CSI (y, k, c, s) = 2·N cells ·M s ·y+N cells ·M s ·k+M s ·c+s;

[0692] Among them, Pri CSI (y, k, c, s) represents the priority of the first CSI report.

[0693] In this way, the terminal device can calculate the priority of the first CSI report according to the above formula.

[0694] For y, this embodiment can have the following multiple definitions:

[0695] One definition: The value of y in the priority of the first CSI report is less than or equal to the value of y in the priority of the second CSI report.

[0696] For example, if the channel type carrying the first CSI report is PUSCH and the time domain type of the first CSI report is aperiodic, then the value of y in the priority of the first CSI report is -4; if the channel type carrying the second CSI report is PUSCH and the time domain type of the second CSI report is aperiodic, then the value of y in the priority of the second CSI report is 0.

[0697] If the channel type carrying the first CSI report is PUSCH and the time domain type of the first CSI report is semi-persistent, then the value of y in the priority of the first CSI report is -3; if the channel type carrying the second CSI report is PUSCH and the time domain type of the second CSI report is semi-persistent, then the value of y in the priority of the first CSI report is 1.

[0698] If the channel type carrying the first CSI report is PUCCH and the time domain type of the first CSI report is semi-persistent, then the value of y in the priority of the first CSI report is -2; if the channel type carrying the second CSI report is PUCCH and the time domain type of the second CSI report is semi-persistent, then the value of y in the priority of the second CSI report is 2.

[0699] If the channel type carrying the first CSI report is PUCCH and the time domain type of the first CSI report is periodic, then the value of y in the priority of the first CSI report is -1; if the channel type carrying the second CSI report is PUCCH and the time domain type of the second CSI report is periodic, then the value of y in the priority of the second CSI report is 3.

[0700] Another definition: The value of y in the priority of the first CSI report is less than or equal to the value of y in the priority of the second CSI report, which has the same channel type and time domain type as the first CSI report.

[0701] For example, if the channel type carrying the first CSI report is PUSCH and the time domain type of the first CSI report is aperiodic, then the value of y in the priority of the first CSI report is 0; if the channel type carrying the second CSI report is PUSCH and the time domain type of the second CSI report is aperiodic, then the value of y in the priority of the second CSI report is 1.

[0702] If the channel type carrying the first CSI report is PUSCH and the time domain type of the first CSI report is semi-persistent, then the value of y in the priority of the first CSI report is 2; if the channel type carrying the second CSI report is PUSCH and the time domain type of the second CSI report is semi-persistent, then the value of y in the priority of the first CSI report is 3.

[0703] If the channel type carrying the first CSI report is PUCCH and the time domain type of the first CSI report is semi-persistent, then the value of y in the priority of the first CSI report is 4; if the channel type carrying the second CSI report is PUCCH and the time domain type of the second CSI report is semi-persistent, then the value of y in the priority of the second CSI report is 5.

[0704] If the channel type carrying the first CSI report is PUCCH and the time domain type of the first CSI report is periodic, then the value of y in the priority of the first CSI report is 6; if the channel type carrying the second CSI report is PUCCH and the time domain type of the second CSI report is periodic, then the value of y in the priority of the second CSI report is 7.

[0705] For k, the value of k in the priority of the first CSI report can be less than or equal to the value of k in the priority of the second CSI report, or the value of k in the priority of the first CSI report can be 1. Specifically, for a second CSI report that contains L1-RSRP or L1-SINR, the value of k in the priority of the second CSI report is 0; for a second CSI report that does not contain L1-RSRP or L1-SINR, the value of k in the priority of the second CSI report is 1.

[0706] In the priority of the first CSI report, c can represent the cell identifier of the serving cell, or c can represent the cell identifier of any candidate cell in the first candidate cells, or c can represent the largest candidate cell identifier, the smallest candidate cell identifier, or any candidate cell identifier in the first candidate cells, or c can represent the largest candidate cell identifier, the smallest candidate cell identifier, or any candidate cell identifier in the candidate cell set, where the candidate cell set is one or more candidate cells where the reference signal configured by the reference signal resource configuration associated with the report configuration of the first CSI report is located.

[0707] It should be noted that the report configuration of the first CSI report can be understood as the report configuration information used to configure the first CSI report, such as the first CSI report configuration information mentioned above.

[0708] Reference signal resource configuration can be understood as reference signal resource configuration information used to configure reference signal resources, such as the first reference signal resource configuration information mentioned above. The report configuration of the first CSI report is associated with the reference signal resource configuration, such as the first CSI report configuration information being associated with the first reference signal resource configuration information.

[0709] Furthermore, the cell where the first CSI report is configured is the serving cell. That is, the first CSI report is configured on the serving cell, and its configuration information is transmitted on the serving cell. Therefore, the cell identifier of the serving cell can be the cell identifier of the cell where the first CSI report is configured.

[0710] Optionally, if the first candidate cell is a candidate cell of the primary cell, then c represents the cell identifier of the primary cell; or, the value of c is 0.

[0711] In the priority of the first CSI report, s can represent the report configuration identifier of the first CSI report.

[0712] Optionally, the report configuration identifier of the first CSI report is smaller than the report configuration identifier of the second CSI report.

[0713] Optionally, in the priority of the second CSI report, s can represent the report configuration identifier of the second CSI report, or s can represent the sum of the total number of report configurations of the first CSI report configured by the network device and the report configuration identifier of the second CSI report, or s can represent the sum of the maximum configuration identifier in the report configurations of the first CSI report configured by the network device and the report configuration identifier of the second CSI report.

[0714] For the priority of the first CSI report, M s M s This can represent the sum of the number of report configuration information used to configure the first CSI report and the number of report configuration information used to configure the LTM report, or M. s It can represent the sum of the number of report configuration information used to configure the first CSI report, the number of report configuration information used to configure the LTM report, and the number of report configuration information used to configure the second CSI report.

[0715] Optionally, for the priority of the second CSI report, M s M s This can represent the number of report configuration information items used to configure the second CSI report.

[0716] For the priority of the first CSI report, N cells N cells It can represent the maximum number of serving cells, or N. cellsIt can represent the sum of the maximum number of serving cells and the maximum number of candidate cells, or N. cells It can represent the maximum number of candidate cells.

[0717] Regarding the priority of the first CSI report, one possible implementation is as follows: network configuration, standard protocol specifications, pre-configuration, or default settings are as follows: the priority value of the first CSI report is less than the priority value of the second CSI report.

[0718] In this way, since the priority value of the first CSI report is less than that of the second CSI report, the priority of the first CSI report is higher than that of the second CSI report, allowing the first CSI report to be sent before the second CSI report.

[0719] Regarding the priority of the first CSI report, one possible implementation is as follows: network configuration, standard protocol specifications, pre-configuration, or default settings are as follows: if the priority value of the first CSI report is the same as the priority value of the second CSI report, then the priority of the first CSI report is higher than the priority of the second CSI report.

[0720] Thus, when the priority value of the first CSI report calculated by the priority calculation formula is the same as the priority value of the second CSI report, the priority of the first CSI report is determined to be higher than that of the second CSI report, so that the first CSI report can be sent before the second CSI report.

[0721] Regarding the priority of the first CSI report, one possible implementation is as follows: network configuration, standard protocol specifications, pre-configuration, or default settings: the priority of the first CSI report is lower than the priority of the LTM report. In other words, the priority of the LTM report is higher than the priority of the first CSI report.

[0722] Thus, since the priority of the first CSI report is lower than that of the LTM report, the LTM report can be sent before the first CSI report.

[0723] Regarding the priority of the first CSI report, one possible implementation is as follows: network configuration, standard protocol specifications, pre-configuration, or default settings are as follows: the priority value of the first CSI report is greater than the priority value of the LTM report.

[0724] In this way, since the priority value of the first CSI report is greater than that of the LTM report, the priority of the first CSI report is lower than that of the LTM report, allowing the LTM report to be sent before the first CSI report.

[0725] Regarding the priority of the first CSI report, one possible implementation is as follows: network configuration, standard protocol specifications, pre-configuration, or default settings are as follows: if the priority value of the first CSI report is the same as the priority value of the LTM report, then the priority of the first CSI report is lower than the priority of the LTM report.

[0726] Thus, when the priority value of the first CSI report calculated by the priority calculation formula is the same as the priority value of the LTM report, it is determined that the priority of the first CSI report is lower than the priority of the LTM report, so that the LTM report can be sent before the first CSI report.

[0727] Regarding the priority of the first CSI report, one possible implementation is as follows: network configuration, standard protocol specifications, pre-configuration, or default settings are as follows: if the priority value of the first CSI report is the same as the priority value of the third CSI report, the third CSI report is used to report the CSI information of the second candidate cell, and the beam information of the first candidate cell is greater than the beam information of the second candidate cell, then the priority of the first CSI report is higher than the priority of the third CSI report; wherein, the second candidate cell includes one or more candidate cells.

[0728] In other words, when two CSI reports that report CSI information for different candidate cells have the same priority value, the higher the priority of the CSI report is if the beam information of the candidate cell reported by one of the CSI reports is larger.

[0729] Thus, since the first CSI report has a higher priority than the third CSI report, the first CSI report can be sent before the third CSI report.

[0730] The following example illustrates the priority of CSI information for the first candidate cell.

[0731] Regarding the priority of CSI information for the first candidate cell, one possible implementation is as follows: network configuration, standard protocol specifications, pre-configuration, or default settings are as follows: the priority of CSI information for the first candidate cell is lower than the priority of hybrid automatic repeat request-acknowledge (HARQ-ACK) information.

[0732] Thus, when the CSI information and HARQ-ACK information of the first candidate cell need to be carried on the same uplink channel resource, and the uplink channel resource cannot carry all the information in the CSI information and HARQ-ACK information of the first candidate cell, since the priority of the CSI information of the first candidate cell is lower than that of the HARQ-ACK information, the terminal device needs to discard the CSI information of the first candidate cell, or omit some information in the CSI information of the first candidate cell that is reported, or the terminal device does not report the CSI information of the first candidate cell.

[0733] Regarding the priority of CSI information for the first candidate cell, one possible implementation is as follows: network configuration, standard protocol specifications, pre-configuration, or default settings are as follows: the priority of CSI information for the first candidate cell is lower than the priority of scheduling request (SR) information.

[0734] Thus, when the CSI information and SR information of the first candidate cell need to be carried on the same uplink channel resource, and the uplink channel resource cannot carry all the information in the CSI information and SR information of the first candidate cell, since the priority of the CSI information of the first candidate cell is lower than that of the SR information, the terminal device needs to discard the CSI information of the first candidate cell, or omit some information in the CSI information of the first candidate cell that is reported, or the terminal device does not report the CSI information of the first candidate cell.

[0735] Regarding the priority of CSI information for the first candidate cell, one possible implementation is as follows: network configuration, standard protocol specifications, pre-configuration, or default settings are as follows: the priority of CSI information for the first candidate cell is lower than the priority of HARQ-ACK information, and the priority of CSI information for the first candidate cell is lower than the priority of SR information.

[0736] Regarding the priority of CSI information for the first candidate cell, one possible implementation is as follows: network configuration, standard protocol specifications, pre-configuration, or default settings are as follows: the CSI information of the first candidate cell includes information located in part 1 of the first CSI report and information located in part 2 of the first CSI report; the information located in part 1 of the first CSI report has a higher priority than the information located in part 2 of the first CSI report.

[0737] Thus, when the terminal device needs to discard or omit some information in the CSI information of the first candidate cell, since the information in part 1 of the first CSI report has a higher priority than the information in part 2 of the first CSI report, the terminal device will preferentially discard or omit the information in part 2 of the first CSI report.

[0738] Regarding the priority of CSI information for the first candidate cell, one possible implementation is as follows: network configuration, standard protocol specification, pre-configuration, or default setting: the CSI information of the first candidate cell includes the CSI information of the candidate cell corresponding to the first identifier and the CSI information of the candidate cell corresponding to the second identifier, where the first identifier and the second identifier are one of the candidate cell identifiers of the first candidate cell;

[0739] If the first identifier is less than the second identifier, then the priority of the CSI information of the candidate cell corresponding to the first identifier is higher than the priority of the CSI information of the candidate cell corresponding to the second identifier.

[0740] In other words, the smaller the candidate cell identifier, the higher the priority of the CSI information, and the larger the candidate cell identifier, the lower the priority of the CSI information.

[0741] Thus, when the terminal device needs to discard or omit some information in the CSI information of the first candidate cell, since the CSI information corresponding to the larger candidate cell identifier has a lower priority, the terminal device will prioritize discarding or omitting the CSI information corresponding to the larger candidate cell identifier.

[0742] Regarding the priority of CSI information for the first candidate cell, one possible implementation method is as follows: network configuration, standard protocol specifications, pre-configuration, or default settings:

[0743] The CSI information of the first candidate cell includes the CSI information of the candidate cell corresponding to the first beam information and the CSI information of the candidate cell corresponding to the second beam information. The first beam information and the second beam information are one of the beam information of the candidate cells reported in the LTM report.

[0744] If the first beam information is greater than the second beam information, then the priority of the CSI information of the candidate cell corresponding to the first beam information is higher than the priority of the CSI information of the candidate cell corresponding to the second beam information.

[0745] In other words, the larger the candidate cell's beam information, the higher the priority of the corresponding CSI information, and the smaller the candidate cell's beam information, the lower the priority of the corresponding CSI information.

[0746] Thus, when the terminal device needs to discard or omit some information in the CSI information of the first candidate cell, since the CSI information corresponding to the beam information of the smaller candidate cell has a lower priority, the terminal device will preferentially discard or omit the CSI information corresponding to the beam information of the smaller candidate cell.

[0747] Regarding the priority of CSI information for the first candidate cell, one possible implementation is as follows: network configuration, standard protocol specifications, pre-configuration, or default settings are as follows: the CSI information of the first candidate cell includes broadband CSI and subband CSI; the priority of broadband CSI is higher than that of subband CSI.

[0748] In this way, when the terminal device needs to discard or omit some information in the CSI information of the first candidate cell, the terminal device will prioritize discarding or omitting the subband CSI.

[0749] Regarding the priority of CSI information for the first candidate cell, one possible implementation is as follows: network configuration, standard protocol specifications, pre-configuration, or default settings are as follows: the CSI information of the first candidate cell includes the CSI information corresponding to the first sub-band number and the CSI information corresponding to the second sub-band number; if the first sub-band number is less than the second sub-band number, the priority of the CSI information corresponding to the first sub-band number is lower or higher than the priority of the CSI information corresponding to the second sub-band number.

[0750] In other words, the higher the sub-band number, the higher or lower the priority of the CSI information.

[0751] Thus, when the terminal device needs to discard or omit some information in the CSI information of the first candidate cell, the terminal device will prioritize discarding or omitting the CSI information corresponding to the larger subband number or the smaller subband number.

[0752] Regarding the priority of CSI information for the first candidate cell, one possible implementation method is as follows: network configuration, standard protocol specifications, pre-configuration, or default settings:

[0753] The CSI information of the first candidate cell includes the first PMI and the first CQI; if the first PMI and the first CQI are in part 1 or part 2 of the first CSI report, then the priority of the first PMI is lower or higher than the priority of the first CQI.

[0754] In other words, PMI and CQI are in the same section of the first CSI report, and PMI has a lower or higher priority than CQI.

[0755] Thus, when a terminal device needs to discard or omit some information in the CSI information of the first candidate cell, if the priority of PMI is lower than that of CQI, the terminal device will discard or omit the reporting of PMI first; if the priority of PMI is higher than that of CQI, the terminal device will discard or omit the reporting of CQI first.

[0756] Regarding the priority of CSI information for the first candidate cell, one possible implementation is as follows: network configuration, standard protocol specifications, pre-configuration, or default settings are as follows: the CSI information of the first candidate cell includes the second PMI and the second CQI, with the priority of the second PMI being lower or higher than the priority of the second CQI.

[0757] In other words, the PMI has a lower or higher priority than the CQI.

[0758] Thus, when a terminal device needs to discard or omit some information in the CSI information of the first candidate cell, if the priority of PMI is lower than that of CQI, the terminal device will discard or omit the reporting of PMI first; if the priority of PMI is higher than that of CQI, the terminal device will discard or omit the reporting of CQI first.

[0759] The following is an example description of a communication device according to this embodiment.

[0760] The above mainly describes the solution of the embodiments of this application from the perspective of the method. The functional units of a communication device according to this embodiment are illustrated below. It is understood that, in order to achieve the above functions, the terminal device includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should readily recognize that, in conjunction with the units and algorithm steps of the various examples described in the embodiments disclosed herein, this embodiment can be implemented in hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this embodiment.

[0761] This application embodiment can divide the terminal device into functional units according to the above method example. For example, each function can be divided into a separate functional unit, or two or more functions can be integrated into one processing unit. The integrated unit can be implemented in hardware or as a software program module. It should be noted that the unit division in this application embodiment is illustrative and only represents a logical functional division, while other division methods may be used in actual implementation.

[0762] When using integrated units, Figure 4 This is a functional unit block diagram of a communication device according to an embodiment of this application. The communication device 400 includes a receiving unit 401 and a transmitting unit 402.

[0763] Optionally, the receiving unit 401 can be a module unit for receiving and processing signals, information, etc., and there are no specific limitations on this.

[0764] Optionally, the transmitting unit 402 can be a module unit used for transmitting signals, information, etc., and there are no specific limitations on this.

[0765] Optionally, the communication device 400 may further include a storage unit for storing computer program code or instructions executed by the communication device 400. The storage unit may be a memory.

[0766] Optionally, the communication device 400 may be a chip or a chip module.

[0767] Optionally, the receiving unit 401 and the transmitting unit 402 can be integrated into the communication unit. The communication unit can be a communication interface, transceiver, transceiver circuit, etc. The communication unit may include a transmitting unit and / or a receiving unit.

[0768] Optionally, the receiving unit 401 and the transmitting unit 402 can be integrated into the processing unit.

[0769] It should be noted that the processing unit can be a processor or controller, such as a baseband processor, baseband chip, central processing unit (CPU), general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA), or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this embodiment. The processing unit can also be a combination that implements computing functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

[0770] Optionally, the communication device 400 is used to perform any of the steps performed by the terminal device / chip / chip module, etc., as described in the above method embodiments.

[0771] In specific implementation, the receiving unit 401 and the sending unit 402 can be used to perform any of the steps in the above method embodiments, and when performing actions such as sending, other units can be selectively invoked to complete the corresponding operations. A detailed explanation follows.

[0772] The receiving unit 401 is used to receive first configuration information, which is used to configure the CSI measurement reporting of candidate cells for triggering mobility LTM in layer 1 or layer 2.

[0773] The sending unit 402 is used to send a first CSI report according to the first configuration information. The first CSI report is used to report the CSI information of the first candidate cell, which includes one or more candidate cells.

[0774] The receiving unit 401 is also used to receive a cell handover command, which is used to indicate a handover from the serving cell to a candidate cell in the first candidate cell.

[0775] As can be seen, the network in this embodiment can configure the LTM candidate cell CSI measurement reporting to the communication device 400 through the first configuration information, enabling the communication device 400 to report the candidate cell CSI measurement according to the first configuration information and send a first CSI report. Since the first CSI report is used to report the CSI information of the first candidate cell, the communication device 400 in this embodiment can use the first CSI report to feed back or report the candidate cell CSI information to the network, thereby realizing the CSI measurement reporting of the candidate cell.

[0776] When the network determines that the communication device 400 needs to hand over from the serving cell to one of the candidate cells in the first candidate cells, the network sends a cell handover command to the communication device 400, enabling the communication device 400 to perform the handover from the serving cell to the candidate cell according to the cell handover command. At this time, the candidate cell becomes the new serving cell.

[0777] In this way, since the communication device 400 will report the CSI measurement of the new serving cell when it performs CSI measurement and reporting on the first candidate cell before cell handover, it is not necessary to perform CSI measurement and reporting on the new serving cell again after the cell handover is completed. This helps to reduce the latency of CSI measurement and reporting on the new serving cell, so that the CSI information of the new serving cell can be applied in a timely manner when channel scheduling is performed on the new serving cell. The CSI information of the new serving cell can determine the transmission parameters that best match the channel conditions of the new serving cell, avoiding the use of conservative or outdated transmission parameters to schedule channel transmission.

[0778] In some possible examples, the first configuration information includes first reference signal resource configuration information and first CSI report configuration information, wherein the first CSI report configuration information is associated with the first reference signal resource configuration information;

[0779] The first reference signal resource configuration information is used to configure the reference signal resources of candidate cells in LTM;

[0780] The first CSI report configuration information is used to configure the CSI reporting of candidate cells for LTM.

[0781] In some possible examples, the first reference signal resource configuration information includes a list of reference signal resource sets and a list of candidate cell identifiers; or,

[0782] The first reference signal resource configuration information includes a reference signal resource set, and the reference signal resource set information includes candidate cell identifier information; or...

[0783] The first reference signal resource configuration information includes reference signal resource set information and candidate cell identifier information; or...

[0784] The first reference signal resource configuration information includes reference signal resource set information, which in turn includes a reference signal resource list and a candidate cell identifier list; or...

[0785] The first reference signal resource configuration information includes candidate cell identifier information; or...

[0786] The first reference signal resource configuration information includes a reference signal resource list and a candidate cell identifier list; or...

[0787] The first reference signal resource configuration information includes reference signal resource information and candidate cell identifier information.

[0788] In some possible examples, the CSI information of the first candidate cell includes the candidate cell identifier and / or the CSI of the first candidate cell;

[0789] The CSI of the first candidate cell includes at least one of the following: CSI Reference Signal Resource Indicator (CRI) of the first candidate cell, Synchronization Signal Block Resource Indicator (SSBRI) of the first candidate cell, Rank Indicator (RI) of the first candidate cell, Precoding Matrix Indicator (PMI) of the first candidate cell, Channel Quality Indicator (CQI) of the first candidate cell, or Layer Indicator (LI) of the first candidate cell.

[0790] In some possible examples, the CSI of the first candidate cell is determined by the reporting parameters corresponding to the first CSI report;

[0791] The parameters reported in the first CSI report include at least one of the following: first parameter, second parameter, third parameter, fourth parameter, fifth parameter, or sixth parameter;

[0792] The first parameter indicator is CRI, the second parameter indicator is SSBRI, the third parameter indicator is RI, the fourth parameter indicator is PMI, the fifth parameter indicator is CQI, and the sixth parameter indicator is LI.

[0793] In some possible examples, the reporting parameters corresponding to the first CSI report are indicated by the first configuration information; or,

[0794] The reporting parameters for the first CSI report are specified by default settings or standard protocols.

[0795] In some possible examples, the candidate cell identifiers of the first candidate cell are arranged in the first CSI report in ascending or descending order of their candidate cell identifiers; or,

[0796] The candidate cell identifiers for the first candidate cell are arranged in the first CSI report according to the order of the beam information of the candidate cells in the LTM report; or,

[0797] The candidate cell identifiers of the first candidate cells are arranged in the first CSI report in ascending or descending order of the CSI of the first candidate cells.

[0798] In some possible examples, the CSIs of the first candidate cell are arranged in the first CSI report in ascending or descending order of the candidate cell identifiers; or,

[0799] The CSI of the first candidate cell is arranged in the first CSI report according to the order of the beam information of the candidate cells in the LTM report; or,

[0800] The CSIs of the first candidate cells are arranged in the first CSI report in ascending or descending order of their CSI values.

[0801] In some possible examples, the candidate cell identifier of the first candidate cell is located in part 1 or part 2 of the first CSI report; or,

[0802] The CSI of the first candidate cell is in part 1 or part 2 of the first CSI report; or...

[0803] The candidate cell identifier of the first candidate cell is located in part 1 of the first CSI report, and the CSI of the first candidate cell is located in part 2 of the first CSI report; or,

[0804] The candidate cell identifier of the first candidate cell is located in part 2 of the first CSI report, and the CSI of the first candidate cell is located in part 1 of the first CSI report; or,

[0805] The number of candidate cells for the first candidate cell is in part 1 of the first CSI report, and the candidate cell identifier and CSI of the first candidate cell are in part 2 of the first CSI report; or,

[0806] The broadband CSI of the first candidate cell is in part 1 of the first CSI report, or the subband CSI of the first candidate cell is in part 2 of the first CSI report; or...

[0807] At least one of the following in the first CSI report is in part 1 of the first CSI report: RI, CRI, CQI of the first codeword, or the number of non-zero broadband amplitude coefficients per layer of the first candidate cell; and at least one of the following in the first CSI report is in part 2 of the first candidate cell: PMI, LI, or CQI of the second codeword.

[0808] In some possible examples, the CRI of the first candidate cell includes an absolute CRI and one or more differential CRIs corresponding to the absolute CRI; and / or,

[0809] The SSBRI of the first candidate cell includes an absolute SSBRI and one or more differential SSBRIs corresponding to the absolute SSBRI; and / or,

[0810] The RI of the first candidate cell includes an absolute RI and one or more differential RIs corresponding to the absolute RI; and / or,

[0811] The PMI of the first candidate cell includes an absolute PMI and one or more differential PMIs corresponding to the absolute PMI; and / or,

[0812] The CQI of the first candidate cell includes an absolute CQI and one or more differential CQIs corresponding to the absolute CQI; and / or,

[0813] The LI of the first candidate cell includes an absolute LI and one or more differential LIs corresponding to the absolute LI.

[0814] In some possible examples, the first candidate cell consists of L candidate cells, where L is a positive integer;

[0815] L is determined by network configuration, standard protocols, pre-configuration, or default settings;

[0816] L is less than or equal to the number of candidate cells that the terminal device can support for CSI measurement reporting.

[0817] In some possible examples, the first candidate cell consists of N candidate cells, where N is a positive integer;

[0818] N is less than or equal to Nmax, where Nmax represents the maximum number of candidate cells included in the first CSI report, and / or N is less than or equal to the number of candidate cells that the terminal device's capabilities support for CSI measurement reporting.

[0819] In some possible examples, the N candidate cells are the first N candidate cells in the first candidate cell sequence, which is obtained by sorting the candidate cells corresponding to the beam information in the LTM report in descending order; or,

[0820] N candidate cells are defined as N candidate cells whose beam information in the LTM report exceeds a first preset threshold; or,

[0821] N candidate cells, which are the first N candidate cells in the second candidate cell sequence. The second candidate cell sequence is obtained by sorting the candidate cells configured in the first configuration information according to the CSI of the candidate cells obtained from CSI measurement in descending order; or...

[0822] N candidate cells are those whose CSI values, obtained from CSI measurements, exceed a second preset threshold.

[0823] In some possible examples, the first CSI report has a higher priority than the second CSI report, which is used to report the CSI information of the serving cell.

[0824] In some possible examples, the priority of the first CSI report is calculated using the following formula:

[0825] Pri CSI (y, k, c, s) = 2·N cells ·M s ·y+N cells ·M s ·k+M s ·c+s;

[0826] Among them, Pri CSI (y, k, c, s) represents the priority of the first CSI report;

[0827] The value of y in the priority of the first CSI report is less than or equal to the value of y in the priority of the second CSI report, or the value of y in the priority of the first CSI report is less than or equal to the value of y in the priority of the second CSI report which has the same channel type and the same time domain type as the first CSI report. The second CSI report is used to report the CSI information of the serving cell.

[0828] In the priority of the first CSI report, the value of k is less than or equal to the value of k in the priority of the second CSI report, or the value of k in the priority of the first CSI report is 1;

[0829] c represents the cell identifier of the serving cell, or c represents the cell identifier of any candidate cell in the first candidate cells, or c represents the largest candidate cell identifier, the smallest candidate cell identifier, or any candidate cell identifier in the first candidate cells, or c represents the largest candidate cell identifier, the smallest candidate cell identifier, or any candidate cell identifier in the candidate cell set. The candidate cell set is one or more candidate cells where the reference signal configured by the reference signal resource configuration associated with the report configuration of the first CSI report is located.

[0830] 's' indicates the report configuration identifier for the first CSI report;

[0831] M s This represents the sum of the number of report configuration information used to configure the first CSI report and the number of report configuration information used to configure the LTM report, or M. s This represents the sum of the number of report configuration information used to configure the first CSI report, the number of report configuration information used to configure the LTM report, and the number of report configuration information used to configure the second CSI report.

[0832] N cells This represents the maximum number of serving cells, or N. cells This represents the sum of the maximum number of serving cells and the maximum number of candidate cells, or N. cells This indicates the maximum number of candidate cells.

[0833] In some possible examples, if the first candidate cell is a candidate cell of the primary cell, then c represents the cell identifier of the primary cell; or, c may be 0.

[0834] In some possible examples, the report configuration identifier of the first CSI report is smaller than the report configuration identifier of the second CSI report.

[0835] In some possible examples, the priority value of the first CSI report is lower than the priority value of the second CSI report; or,

[0836] If the priority value of the first CSI report is the same as the priority value of the second CSI report, then the priority of the first CSI report is higher than the priority of the second CSI report.

[0837] In some possible examples, the first CSI report has a lower priority than the LTM report, which is used to report beam information for candidate cells.

[0838] In some possible examples, the priority value of the first CSI report is greater than the priority value of the LTM report; or,

[0839] If the priority value of the first CSI report is the same as the priority value of the LTM report, then the priority of the first CSI report is lower than the priority of the LTM report.

[0840] The LTM report is used to report the beam information of candidate cells.

[0841] In some possible examples, if the priority value of the first CSI report is the same as the priority value of the third CSI report, the third CSI report is used to report the CSI information of the second candidate cell, and the beam information of the first candidate cell is greater than the beam information of the second candidate cell, then

[0842] The first CSI report has a higher priority than the third CSI report;

[0843] The second candidate cell includes one or more candidate cells.

[0844] In some possible examples, the CSI information of the first candidate cell has a lower priority than the Hybrid Automatic Repeat Request (HARQ) - Determine ACK information; and / or,

[0845] The priority of CSI information for the first candidate cell is lower than that of scheduling request information.

[0846] In some possible examples, the CSI information of the first candidate cell includes information located in part 1 of the first CSI report and information located in part 2 of the first CSI report;

[0847] Information located in Part 1 of the first CSI report has a higher priority than information located in Part 2 of the first CSI report.

[0848] In some possible examples, the CSI information of the first candidate cell includes the CSI information of the candidate cell corresponding to the first identifier and the CSI information of the candidate cell corresponding to the second identifier, wherein the first identifier and the second identifier are respectively one of the candidate cell identifiers of the first candidate cell;

[0849] If the first identifier is less than the second identifier, then the priority of the CSI information of the candidate cell corresponding to the first identifier is higher than the priority of the CSI information of the candidate cell corresponding to the second identifier.

[0850] In some possible examples, the CSI information of the first candidate cell includes the CSI information of the candidate cell corresponding to the first beam information and the CSI information of the candidate cell corresponding to the second beam information, wherein the first beam information and the second beam information are one of the beam information of the candidate cells reported in the LTM report.

[0851] If the first beam information is greater than the second beam information, then the priority of the CSI information of the candidate cell corresponding to the first beam information is higher than the priority of the CSI information of the candidate cell corresponding to the second beam information.

[0852] In some possible examples, the CSI information of the first candidate cell includes both broadband CSI and subband CSI;

[0853] Broadband CSI has a higher priority than subband CSI.

[0854] In some possible examples, the CSI information of the first candidate cell includes the CSI information corresponding to the first sub-band number and the CSI information corresponding to the second sub-band number;

[0855] If the first sub-band number is less than the second sub-band number, then the priority of the CSI information corresponding to the first sub-band number is lower or higher than the priority of the CSI information corresponding to the second sub-band number.

[0856] In some possible examples, the CSI information of the first candidate cell includes the first PMI and the first CQI; if the first PMI and the first CQI are in part 1 or part 2 of the first CSI report, then the priority of the first PMI is lower or higher than the priority of the first CQI.

[0857] In some possible examples, the CSI information of the first candidate cell includes a second PMI and a second CQI, with the second PMI having a lower or higher priority than the second CQI.

[0858] The following is an example description of another communication device in this embodiment.

[0859] The above mainly describes the solutions of the embodiments of this application from the perspective of the method. The following is an example illustration of the functional units of another communication device according to this embodiment. It is understood that, in order to achieve the above functions, the network device includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should readily recognize that, in conjunction with the units and algorithm steps of the various examples described in the embodiments disclosed herein, this embodiment can be implemented in hardware or a combination of hardware and computer software. Whether a certain function is executed in a hardware or computer software-driven hardware manner depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this embodiment.

[0860] This application embodiment can divide the network device into functional units according to the above method example. For example, each function can be divided into different functional units, or two or more functions can be integrated into one processing unit. The integrated unit can be implemented in hardware or as a software program module. It should be noted that the unit division in this application embodiment is illustrative and only represents a logical functional division, while other division methods may be used in actual implementation.

[0861] When using integrated units, Figure 5 This is a functional unit block diagram of another communication device according to an embodiment of this application. The communication device 500 includes a transmitting unit 501 and a receiving unit 502.

[0862] Optionally, the transmitting unit 501 can be a module unit used for transmitting signals, information, etc., and there are no specific limitations on this.

[0863] Optionally, the receiving unit 502 can be a module unit for receiving and processing signals, information, etc., and there are no specific limitations on this.

[0864] Optionally, the communication device 500 may further include a storage unit for storing computer program code or instructions executed by the communication device 500. The storage unit may be a memory.

[0865] Optionally, the communication device 500 may be a chip or a chip module.

[0866] Optionally, the transmitting unit 501 and the receiving unit 502 can be integrated into the communication unit. The communication unit can be a communication interface, transceiver, transceiver circuit, etc. The communication unit may include a transmitting unit and / or a receiving unit.

[0867] Optionally, the transmitting unit 501 and the receiving unit 502 can be integrated into the processing unit.

[0868] It should be noted that the processing unit can be a processor or controller, such as a baseband processor, baseband chip, central processing unit (CPU), general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA), or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this embodiment. The processing unit can also be a combination that implements computing functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

[0869] Optionally, the communication device 500 is used to perform any of the steps performed by the network device / chip / chip module, etc., as described in the above method embodiments.

[0870] In specific implementation, the sending unit 501 and the receiving unit 502 can be used to perform any of the steps in the above method embodiments, and when performing actions such as sending, other units can be selectively invoked to complete the corresponding operations. A detailed explanation follows.

[0871] The sending unit 501 is used to send first configuration information, which is used to configure the CSI measurement reporting of candidate cells that trigger mobility LTM in layer 1 or layer 2.

[0872] The receiving unit 502 is configured to receive a first CSI report according to the first configuration information. The first CSI report is used to report the CSI information of a first candidate cell, and the first candidate cell includes one or more candidate cells.

[0873] The sending unit 501 is used to send a cell handover command, which is used to indicate a handover from the serving cell to a candidate cell in the first candidate cell.

[0874] As can be seen, the communication device 500 in this embodiment can configure the CSI measurement reporting of candidate cells for LTM to the terminal device through the first configuration information, so that the terminal device can report the CSI measurement of candidate cells according to the first configuration information and send a first CSI report. Since the first CSI report is used to report the CSI information of the first candidate cell, the terminal device in this embodiment can use the first CSI report to feed back or report the CSI information of the candidate cell to the communication device 500, thereby realizing the CSI measurement reporting of the candidate cell.

[0875] When the communication device 500 determines that the terminal device needs to hand over from the serving cell to one of the candidate cells in the first candidate cells, the communication device 500 sends a cell handover command to the terminal device, enabling the terminal device to perform a handover from the serving cell to the candidate cell according to the cell handover command. At this time, the candidate cell becomes the new serving cell.

[0876] In this way, since the terminal equipment will report the CSI measurement of the new serving cell when it performs CSI measurement and reporting on the first candidate cell before cell handover, it is not necessary to perform CSI measurement and reporting on the new serving cell again after the cell handover is completed. This helps to reduce the latency of CSI measurement and reporting on the new serving cell, so that the CSI information of the new serving cell can be applied in a timely manner when channel scheduling is performed on the new serving cell. The CSI information of the new serving cell can determine the transmission parameters that best match the channel conditions of the new serving cell, avoiding the use of conservative or outdated transmission parameters to schedule channel transmission.

[0877] In some possible examples, the first configuration information includes first reference signal resource configuration information and first CSI report configuration information, wherein the first CSI report configuration information is associated with the first reference signal resource configuration information;

[0878] The first reference signal resource configuration information is used to configure the reference signal resources of candidate cells in LTM;

[0879] The first CSI report configuration information is used to configure the CSI reporting of candidate cells for LTM.

[0880] In some possible examples, the first reference signal resource configuration information includes a list of reference signal resource sets and a list of candidate cell identifiers; or,

[0881] The first reference signal resource configuration information includes a reference signal resource set, and the reference signal resource set information includes candidate cell identifier information; or...

[0882] The first reference signal resource configuration information includes reference signal resource set information and candidate cell identifier information; or...

[0883] The first reference signal resource configuration information includes reference signal resource set information, which in turn includes a reference signal resource list and a candidate cell identifier list; or...

[0884] The first reference signal resource configuration information includes candidate cell identifier information; or...

[0885] The first reference signal resource configuration information includes a reference signal resource list and a candidate cell identifier list; or...

[0886] The first reference signal resource configuration information includes reference signal resource information and candidate cell identifier information.

[0887] In some possible examples, the CSI information of the first candidate cell includes the candidate cell identifier and / or the CSI of the first candidate cell;

[0888] The CSI of the first candidate cell includes at least one of the following: CSI Reference Signal Resource Indicator (CRI) of the first candidate cell, Synchronization Signal Block Resource Indicator (SSBRI) of the first candidate cell, Rank Indicator (RI) of the first candidate cell, Precoding Matrix Indicator (PMI) of the first candidate cell, Channel Quality Indicator (CQI) of the first candidate cell, or Layer Indicator (LI) of the first candidate cell.

[0889] In some possible examples, the CSI of the first candidate cell is determined by the reporting parameters corresponding to the first CSI report;

[0890] The parameters reported in the first CSI report include at least one of the following: first parameter, second parameter, third parameter, fourth parameter, fifth parameter, or sixth parameter;

[0891] The first parameter indicator is CRI, the second parameter indicator is SSBRI, the third parameter indicator is RI, the fourth parameter indicator is PMI, the fifth parameter indicator is CQI, and the sixth parameter indicator is LI.

[0892] In some possible examples, the reporting parameters corresponding to the first CSI report are indicated by the first configuration information; or,

[0893] The reporting parameters for the first CSI report are specified by default settings or standard protocols.

[0894] In some possible examples, the candidate cell identifiers of the first candidate cell are arranged in the first CSI report in ascending or descending order of their candidate cell identifiers; or,

[0895] The candidate cell identifiers for the first candidate cell are arranged in the first CSI report according to the order of the beam information of the candidate cells in the LTM report; or,

[0896] The candidate cell identifiers of the first candidate cells are arranged in the first CSI report in ascending or descending order of the CSI of the first candidate cells.

[0897] In some possible examples, the CSIs of the first candidate cell are arranged in the first CSI report in ascending or descending order of the candidate cell identifiers; or,

[0898] The CSI of the first candidate cell is arranged in the first CSI report according to the order of the beam information of the candidate cells in the LTM report; or,

[0899] The CSIs of the first candidate cells are arranged in the first CSI report in ascending or descending order of their CSI values.

[0900] In some possible examples, the candidate cell identifier of the first candidate cell is located in part 1 or part 2 of the first CSI report; or,

[0901] The CSI of the first candidate cell is in part 1 or part 2 of the first CSI report; or...

[0902] The candidate cell identifier of the first candidate cell is located in part 1 of the first CSI report, and the CSI of the first candidate cell is located in part 2 of the first CSI report; or,

[0903] The candidate cell identifier of the first candidate cell is located in part 2 of the first CSI report, and the CSI of the first candidate cell is located in part 1 of the first CSI report; or,

[0904] The number of candidate cells for the first candidate cell is in part 1 of the first CSI report, and the candidate cell identifier and CSI of the first candidate cell are in part 2 of the first CSI report; or,

[0905] The broadband CSI of the first candidate cell is in part 1 of the first CSI report, or the subband CSI of the first candidate cell is in part 2 of the first CSI report; or...

[0906] At least one of the following in the first CSI report is in part 1 of the first CSI report: RI, CRI, CQI of the first codeword, or the number of non-zero broadband amplitude coefficients per layer of the first candidate cell; and at least one of the following in the first CSI report is in part 2 of the first candidate cell: PMI, LI, or CQI of the second codeword.

[0907] In some possible examples, the CRI of the first candidate cell includes an absolute CRI and one or more differential CRIs corresponding to the absolute CRI; and / or,

[0908] The SSBRI of the first candidate cell includes an absolute SSBRI and one or more differential SSBRIs corresponding to the absolute SSBRI; and / or,

[0909] The RI of the first candidate cell includes an absolute RI and one or more differential RIs corresponding to the absolute RI; and / or,

[0910] The PMI of the first candidate cell includes an absolute PMI and one or more differential PMIs corresponding to the absolute PMI; and / or,

[0911] The CQI of the first candidate cell includes an absolute CQI and one or more differential CQIs corresponding to the absolute CQI; and / or,

[0912] The LI of the first candidate cell includes an absolute LI and one or more differential LIs corresponding to the absolute LI.

[0913] In some possible examples, the first candidate cell consists of L candidate cells, where L is a positive integer;

[0914] L is determined by network configuration, standard protocols, pre-configuration, or default settings;

[0915] L is less than or equal to the number of candidate cells that the terminal device can support for CSI measurement reporting.

[0916] In some possible examples, the first candidate cell consists of N candidate cells, where N is a positive integer;

[0917] N is less than or equal to Nmax, where Nmax represents the maximum number of candidate cells included in the first CSI report, and / or N is less than or equal to the number of candidate cells that the terminal device's capabilities support for CSI measurement reporting.

[0918] In some possible examples, the N candidate cells are the first N candidate cells in the first candidate cell sequence, which is obtained by sorting the candidate cells corresponding to the beam information in the LTM report in descending order; or,

[0919] N candidate cells are defined as N candidate cells whose beam information in the LTM report exceeds a first preset threshold; or,

[0920] N candidate cells, which are the first N candidate cells in the second candidate cell sequence. The second candidate cell sequence is obtained by sorting the candidate cells configured in the first configuration information according to the CSI of the candidate cells obtained from CSI measurement in descending order; or...

[0921] N candidate cells are those whose CSI values, obtained from CSI measurements, exceed a second preset threshold.

[0922] In some possible examples, the first CSI report has a higher priority than the second CSI report, which is used to report the CSI information of the serving cell.

[0923] In some possible examples, the priority of the first CSI report is calculated using the following formula:

[0924] Pri CSI (y, k, c, s) = 2·N cells ·M s ·y+N cells ·M s ·k+M s ·c+s;

[0925] Among them, Pri CSI (y, k, c, s) represents the priority of the first CSI report;

[0926] The value of y in the priority of the first CSI report is less than or equal to the value of y in the priority of the second CSI report, or the value of y in the priority of the first CSI report is less than or equal to the value of y in the priority of the second CSI report which has the same channel type and the same time domain type as the first CSI report. The second CSI report is used to report the CSI information of the serving cell.

[0927] In the priority of the first CSI report, the value of k is less than or equal to the value of k in the priority of the second CSI report, or the value of k in the priority of the first CSI report is 1;

[0928] c represents the cell identifier of the serving cell, or c represents the cell identifier of any candidate cell in the first candidate cells, or c represents the largest candidate cell identifier, the smallest candidate cell identifier, or any candidate cell identifier in the first candidate cells, or c represents the largest candidate cell identifier, the smallest candidate cell identifier, or any candidate cell identifier in the candidate cell set. The candidate cell set is one or more candidate cells where the reference signal configured by the reference signal resource configuration associated with the report configuration of the first CSI report is located.

[0929] 's' indicates the report configuration identifier for the first CSI report;

[0930] M s This represents the sum of the number of report configuration information used to configure the first CSI report and the number of report configuration information used to configure the LTM report, or M. s This represents the sum of the number of report configuration information used to configure the first CSI report, the number of report configuration information used to configure the LTM report, and the number of report configuration information used to configure the second CSI report.

[0931] N cells This represents the maximum number of serving cells, or N. cells This represents the sum of the maximum number of serving cells and the maximum number of candidate cells, or N. cells This indicates the maximum number of candidate cells.

[0932] In some possible examples, if the first candidate cell is a candidate cell of the primary cell, then c represents the cell identifier of the primary cell; or, c may be 0.

[0933] In some possible examples, the report configuration identifier of the first CSI report is smaller than the report configuration identifier of the second CSI report.

[0934] In some possible examples, the priority value of the first CSI report is lower than the priority value of the second CSI report; or,

[0935] If the priority value of the first CSI report is the same as the priority value of the second CSI report, then the priority of the first CSI report is higher than the priority of the second CSI report.

[0936] In some possible examples, the first CSI report has a lower priority than the LTM report, which is used to report beam information for candidate cells.

[0937] In some possible examples, the priority value of the first CSI report is greater than the priority value of the LTM report; or,

[0938] If the priority value of the first CSI report is the same as the priority value of the LTM report, then the priority of the first CSI report is lower than the priority of the LTM report.

[0939] The LTM report is used to report the beam information of candidate cells.

[0940] In some possible examples, if the priority value of the first CSI report is the same as the priority value of the third CSI report, the third CSI report is used to report the CSI information of the second candidate cell, and the beam information of the first candidate cell is greater than the beam information of the second candidate cell, then

[0941] The first CSI report has a higher priority than the third CSI report;

[0942] The second candidate cell includes one or more candidate cells.

[0943] In some possible examples, the CSI information of the first candidate cell has a lower priority than the Hybrid Automatic Repeat Request (HARQ) - Determine ACK information; and / or,

[0944] The priority of CSI information for the first candidate cell is lower than that of scheduling request information.

[0945] In some possible examples, the CSI information of the first candidate cell includes information located in part 1 of the first CSI report and information located in part 2 of the first CSI report;

[0946] Information located in Part 1 of the first CSI report has a higher priority than information located in Part 2 of the first CSI report.

[0947] In some possible examples, the CSI information of the first candidate cell includes the CSI information of the candidate cell corresponding to the first identifier and the CSI information of the candidate cell corresponding to the second identifier, wherein the first identifier and the second identifier are respectively one of the candidate cell identifiers of the first candidate cell;

[0948] If the first identifier is less than the second identifier, then the priority of the CSI information of the candidate cell corresponding to the first identifier is higher than the priority of the CSI information of the candidate cell corresponding to the second identifier.

[0949] In some possible examples, the CSI information of the first candidate cell includes the CSI information of the candidate cell corresponding to the first beam information and the CSI information of the candidate cell corresponding to the second beam information, wherein the first beam information and the second beam information are one of the beam information of the candidate cells reported in the LTM report.

[0950] If the first beam information is greater than the second beam information, then the priority of the CSI information of the candidate cell corresponding to the first beam information is higher than the priority of the CSI information of the candidate cell corresponding to the second beam information.

[0951] In some possible examples, the CSI information of the first candidate cell includes both broadband CSI and subband CSI;

[0952] Broadband CSI has a higher priority than subband CSI.

[0953] In some possible examples, the CSI information of the first candidate cell includes the CSI information corresponding to the first sub-band number and the CSI information corresponding to the second sub-band number;

[0954] If the first sub-band number is less than the second sub-band number, then the priority of the CSI information corresponding to the first sub-band number is lower or higher than the priority of the CSI information corresponding to the second sub-band number.

[0955] In some possible examples, the CSI information of the first candidate cell includes the first PMI and the first CQI; if the first PMI and the first CQI are in part 1 or part 2 of the first CSI report, then the priority of the first PMI is lower or higher than the priority of the first CQI.

[0956] In some possible examples, the CSI information of the first candidate cell includes a second PMI and a second CQI, with the second PMI having a lower or higher priority than the second CQI.

[0957] The structure of a terminal device in this embodiment is illustrated below.

[0958] Please see Figure 6 , Figure 6 This is a schematic diagram of the structure of a terminal device according to an embodiment of this application. The terminal device 600 may include a processor 610, a memory 620, and a communication bus for connecting the processor 610 and the memory 620.

[0959] Optionally, the memory 620 may include, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or compact disc read-only memory (CD-ROM). The memory 620 is used to store program code executed by the terminal device 600 and data transmitted.

[0960] Optionally, the terminal device 600 also includes a communication interface for receiving and sending data.

[0961] Optionally, the terminal device 600 can be one of the terminal devices mentioned above.

[0962] Optionally, the processor 610 can be one or more CPUs. If the processor 610 is a CPU, the CPU can be a single-core CPU or a multi-core CPU.

[0963] Optionally, the processor 610 can be a baseband chip, chip, CPU, general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, transistor logic device, hardware component or any combination thereof.

[0964] In a specific implementation, the processor 610 in the terminal device 600 executes the computer program or instructions 621 stored in the memory 620 to perform the following operations:

[0965] Receive first configuration information, which is used to configure the CSI measurement reporting of candidate cells that trigger mobility LTM in layer 1 or layer 2;

[0966] A first CSI report is sent based on the first configuration information. The first CSI report is used to report the CSI information of the first candidate cell. The first candidate cell includes one or more candidate cells.

[0967] Receive a cell handover command, which indicates a handover from the serving cell to a candidate cell among the first candidate cells.

[0968] As can be seen, the network device in this embodiment can configure the CSI measurement reporting of candidate cells for LTM to the terminal device through the first configuration information, enabling the terminal device to perform CSI measurement reporting of candidate cells according to the first configuration information and send a first CSI report. Since the first CSI report is used to report the CSI information of the first candidate cell, the terminal device in this embodiment can use the first CSI report to feed back or report the CSI information of the candidate cell to the network device, thereby realizing the CSI measurement reporting of the candidate cell.

[0969] When a network device determines that a terminal device needs to hand over from the serving cell to one of the candidate cells in the first candidate cells, the network device sends a cell handover command to the terminal device, enabling the terminal device to perform the handover from the serving cell to the candidate cell according to the cell handover command. At this time, the candidate cell becomes the new serving cell.

[0970] In this way, since the terminal equipment will report the CSI measurement of the new serving cell when it performs CSI measurement and reporting on the first candidate cell before cell handover, it is not necessary to perform CSI measurement and reporting on the new serving cell again after the cell handover is completed. This helps to reduce the latency of CSI measurement and reporting on the new serving cell, so that the CSI information of the new serving cell can be applied in a timely manner when channel scheduling is performed on the new serving cell. The CSI information of the new serving cell can determine the transmission parameters that best match the channel conditions of the new serving cell, avoiding the use of conservative or outdated transmission parameters to schedule channel transmission.

[0971] It should be noted that the specific implementation of each operation can adopt the corresponding description of the method embodiment shown above. The terminal device 600 can be used to execute the method embodiment described above in this embodiment, and will not be described again here.

[0972] The structure of a network device according to this embodiment is illustrated below.

[0973] Please see Figure 7 , Figure 7 This is a schematic diagram of the structure of a network device according to an embodiment of this application. The network device 700 may include a processor 710, a memory 720, and a communication bus for connecting the processor 710 and the memory 720.

[0974] Optionally, the memory 720 may include, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or compact disc read-only memory (CD-ROM). The memory 720 is used to store program code executed by the network device 700 and data transmitted.

[0975] Optionally, the network device 700 also includes a communication interface for receiving and sending data.

[0976] Optionally, network device 700 can be any of the network devices mentioned above.

[0977] Optionally, the processor 710 can be one or more CPUs. If the processor 710 is a CPU, the CPU can be a single-core CPU or a multi-core CPU.

[0978] Optionally, the processor 710 can be a baseband chip, chip, CPU, general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, transistor logic device, hardware component or any combination thereof.

[0979] In a specific implementation, the processor 710 in the network device 700 executes the computer program or instructions 721 stored in the memory 720 to perform the following operations:

[0980] Send first configuration information, which is used to configure the CSI measurement reporting of candidate cells that trigger mobility LTM in layer 1 or layer 2;

[0981] The first CSI report is received based on the first configuration information. The first CSI report is used to report the CSI information of the first candidate cell. The first candidate cell includes one or more candidate cells.

[0982] Send a cell handover command. The cell handover command is used to indicate a handover from the serving cell to a candidate cell in the first candidate cell.

[0983] As can be seen, this embodiment can configure the CSI measurement reporting of candidate cells for LTM to the terminal device through the first configuration information, enabling the terminal device to report the CSI measurement of candidate cells according to the first configuration information and send a first CSI report. Since the first CSI report is used to report the CSI information of the first candidate cell, the terminal device in this embodiment can use the first CSI report to feed back or report the CSI information of the candidate cell to the network device, thereby realizing the CSI measurement reporting of the candidate cell.

[0984] When a network device determines that a terminal device needs to hand over from the serving cell to one of the candidate cells in the first candidate cells, the network device sends a cell handover command to the terminal device, enabling the terminal device to perform the handover from the serving cell to the candidate cell according to the cell handover command. At this time, the candidate cell becomes the new serving cell.

[0985] In this way, since the terminal equipment will report the CSI measurement of the new serving cell when it performs CSI measurement and reporting on the first candidate cell before cell handover, it is not necessary to perform CSI measurement and reporting on the new serving cell again after the cell handover is completed. This helps to reduce the latency of CSI measurement and reporting on the new serving cell, so that the CSI information of the new serving cell can be applied in a timely manner when channel scheduling is performed on the new serving cell. The CSI information of the new serving cell can determine the transmission parameters that best match the channel conditions of the new serving cell, avoiding the use of conservative or outdated transmission parameters to schedule channel transmission.

[0986] It should be noted that the specific implementation of each operation can adopt the corresponding description of the method embodiment shown above. The network device 700 can be used to execute the method embodiment described above in this embodiment, and will not be described again here.

[0987] The following provides examples illustrating other relevant aspects of this embodiment.

[0988] Optionally, the above method embodiments can be applied to or incorporated into terminal devices. That is, the executing entity of the above method embodiments can be a terminal device, a chip, a chip module, or a module, etc., without specific limitations.

[0989] Optionally, the above method embodiments can be applied to network devices or applied within network devices. That is, the executing entity of the above method embodiments can be a network device, a chip, a chip module, or a module, etc., without specific limitations.

[0990] This application also provides a chip, including a processor, a memory, and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps described in the above method embodiments.

[0991] This application also provides a chip module, including a transceiver component and a chip. The chip includes a processor, a memory, and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps described in the above method embodiments.

[0992] This application also provides a computer-readable storage medium storing a computer program or instructions that, when executed, implement the steps described in the above method embodiments.

[0993] This application also provides a computer program product, including a computer program or instructions that, when executed, implement the steps described in the above method embodiments.

[0994] It should be noted that, for the sake of simplicity, the above embodiments are all described as a series of actions. Those skilled in the art should understand that this application is not limited to the described order of actions, as some steps in the embodiments of this application can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions, steps, modules, or units involved are not necessarily essential to the embodiments of this application.

[0995] In the above embodiments, the descriptions of each embodiment in this application have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0996] The steps of the methods or algorithms described in the embodiments of this application can be implemented in hardware or by a processor executing software instructions. The software instructions can consist of corresponding software modules, which can be stored in RAM, flash memory, ROM, EPROM, electrically erasable programmable read-only memory (EEPROM), registers, hard disk, portable hard disk, read-only optical disk (CD-ROM), or any other form of storage medium well known in the art. An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and storage medium can reside in an ASIC. Furthermore, the ASIC can reside in a terminal device or management device. Alternatively, the processor and storage medium can exist as discrete components in the terminal device or management device.

[0997] Those skilled in the art will recognize that, in one or more of the examples above, the functions described in the embodiments of this application can be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, in the form of a computer program product. This computer program product includes one or more computer instructions. When these computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).

[0998] The modules or units included in the various devices and products described in the above embodiments can be software modules or units, hardware modules or units, or a combination of both. For example, for devices and products applied to or integrated into a chip, all modules or units can be implemented using hardware methods such as circuits, or at least some modules or units can be implemented using software programs that run on a processor integrated within the chip, while the remaining (if any) modules or units can be implemented using hardware methods such as circuits. For devices and products applied to or integrated into a chip module, all modules or units can be implemented using hardware methods such as circuits. Different modules or units can be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some modules or units can be implemented using hardware methods such as circuits. The implementation is achieved through a software program that runs on a processor integrated within the chip module. The remaining modules or units (if any) can be implemented using hardware methods such as circuits. For various devices or products applied to or integrated into terminal equipment, each of its modules or units can be implemented using hardware methods such as circuits. Different modules or units can be located in the same component (e.g., chip, circuit module, etc.) or different components within the terminal equipment. Alternatively, at least some modules or units can be implemented using a software program that runs on a processor integrated within the terminal equipment, while the remaining modules or units (if any) can be implemented using hardware methods such as circuits.

[0999] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the embodiments of this application. It should be understood that the above descriptions are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solutions of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A communication method, characterized in that, include: Receive first configuration information, which is used to configure the CSI measurement reporting of candidate cells that trigger mobility LTM in layer 1 or layer 2; A first CSI report is sent according to the first configuration information. The first CSI report is used to report the CSI information of the first candidate cell, which includes one or more candidate cells. Receive a cell handover command, which is used to instruct a handover from the serving cell to one of the candidate cells in the first candidate cells.

2. A communication method, characterized in that, include: Send first configuration information, which is used to configure the CSI measurement reporting of candidate cells that trigger mobility LTM in layer 1 or layer 2; A first CSI report is received based on the first configuration information. The first CSI report is used to report the CSI information of a first candidate cell, which includes one or more candidate cells. Send a cell handover command, which is used to indicate a handover from the serving cell to one of the candidate cells in the first candidate cells.

3. The method according to claim 1 or 2, characterized in that, The first configuration information includes first reference signal resource configuration information and first CSI report configuration information, wherein the first CSI report configuration information is associated with the first reference signal resource configuration information; The first reference signal resource configuration information is used to configure the reference signal resources of candidate cells in LTM; The first CSI report configuration information is used to configure the CSI reporting of candidate cells for LTM.

4. The method according to claim 3, characterized in that, The first reference signal resource configuration information includes a reference signal resource set list and a candidate cell identifier list; or, The first reference signal resource configuration information includes a reference signal resource set, and the reference signal resource set information includes candidate cell identifier information; or, The first reference signal resource configuration information includes reference signal resource set information and candidate cell identifier information; or, The first reference signal resource configuration information includes reference signal resource set information, which includes reference signal resource list information and candidate cell identifier list information; or, The first reference signal resource configuration information includes candidate cell identifier information; or, The first reference signal resource configuration information includes reference signal resource list information and candidate cell identifier list information; or, The first reference signal resource configuration information includes reference signal resource information and candidate cell identifier information.

5. The method according to claim 1 or 2, characterized in that, The CSI information of the first candidate cell includes the candidate cell identifier and / or the CSI of the first candidate cell; The CSI of the first candidate cell includes at least one of the following: CSI Reference Signal Resource Indication (CRI) of the first candidate cell, Synchronization Signal Block Resource Indication (SSBRI) of the first candidate cell, Rank Indication (RI) of the first candidate cell, Precoding Matrix Indication (PMI) of the first candidate cell, Channel Quality Indication (CQI) of the first candidate cell, or Layer Indication (LI) of the first candidate cell.

6. The method according to claim 5, characterized in that, The CSI of the first candidate cell is determined by the reporting parameters corresponding to the first CSI report; The reporting parameters corresponding to the first CSI report include at least one of the following: a first parameter, a second parameter, a third parameter, a fourth parameter, a fifth parameter, or a sixth parameter; The first parameter indicator is CRI, the second parameter indicator is SSBRI, the third parameter indicator is RI, the fourth parameter indicator is PMI, the fifth parameter indicator is CQI, and the sixth parameter indicator is LI.

7. The method according to claim 6, characterized in that, The reporting parameters corresponding to the first CSI report are indicated by the first configuration information; or, The reporting parameters corresponding to the first CSI report are specified by default settings or standard protocols.

8. The method according to claim 5, characterized in that, The candidate cell identifiers of the first candidate cell are arranged in the first CSI report in ascending or descending order of the candidate cell identifiers of the first candidate cell; or, The candidate cell identifiers of the first candidate cell are arranged in the first CSI report according to the order of the beam information of the candidate cells in the LTM report; or, The candidate cell identifiers of the first candidate cells are arranged in the first CSI report in ascending or descending order of the CSI of the first candidate cells.

9. The method according to claim 5, characterized in that, The CSIs of the first candidate cells are arranged in the first CSI report in ascending or descending order of their candidate cell identifiers; or... The CSIs of the first candidate cell are arranged in the first CSI report according to the order of the beam information of the candidate cells in the LTM report; or, The CSIs of the first candidate cells are arranged in the first CSI report in ascending or descending order of their CSI values.

10. The method according to claim 5, characterized in that, The candidate cell identifier of the first candidate cell is located in part 1 or part 2 of the first CSI report; or, The CSI of the first candidate cell is in part 1 or part 2 of the first CSI report; or, The candidate cell identifier of the first candidate cell is located in part 1 of the first CSI report, and the CSI of the first candidate cell is located in part 2 of the first CSI report; or, The candidate cell identifier of the first candidate cell is located in part 2 of the first CSI report, and the CSI of the first candidate cell is located in part 1 of the first CSI report; or, The number of candidate cells in the first candidate cell is in part 1 of the first CSI report, and the candidate cell identifier and the CSI of the first candidate cell are in part 2 of the first CSI report; or, The broadband CSI of the first candidate cell is in part 1 of the first CSI report, or the subband CSI of the first candidate cell is in part 2 of the first CSI report; or, At least one of the RI, CRI, CQI of the first codeword, or the number of non-zero broadband amplitude coefficients per layer of the first candidate cell is in part 1 of the first CSI report, and at least one of the PMI, LI, or CQI of the second codeword of the first candidate cell is in part 2 of the first CSI report.

11. The method according to any one of claims 1-10, characterized in that, The first candidate cell consists of L candidate cells, where L is a positive integer; L is determined by network configuration, standard protocols, pre-configuration, or default settings; L is less than or equal to the number of candidate cells that the terminal device can support for CSI measurement reporting.

12. The method according to any one of claims 1-10, characterized in that, The first candidate cell consists of N candidate cells, where N is a positive integer; N is less than or equal to Nmax, where Nmax represents the maximum number of candidate cells included in the first CSI report, and / or N is less than or equal to the number of candidate cells that the terminal device's capabilities support for CSI measurement reporting.

13. The method according to claim 12, characterized in that, The N candidate cells are the first N candidate cells in the first candidate cell sequence, which is obtained by sorting the candidate cells corresponding to the beam information in the LTM report in descending order; or... The N candidate cells are the N candidate cells determined when the beam information in the LTM report exceeds the first preset threshold; or, The N candidate cells are the first N candidate cells in the second candidate cell sequence, which is obtained by sorting the candidate cells configured in the first configuration information according to the CSI of the candidate cells obtained from CSI measurement in descending order; or... The N candidate cells are those whose CSI values, as determined by CSI measurements, exceed a second preset threshold.

14. The method according to any one of claims 1-13, characterized in that, The first CSI report has a higher priority than the second CSI report, which is used to report the CSI information of the serving cell.

15. The method according to any one of claims 1-13, characterized in that, The priority of the first CSI report is calculated using the following formula: Pri csI (y,k,c,s)=2·N cells ·M s ·y+N cells ·M s ·k+M s ·c+s; Among them, Pri CsI (y,k,c,s) represents the priority of the first CSI report; The value of y in the priority of the first CSI report is less than or equal to the value of y in the priority of the second CSI report, or the value of y in the priority of the first CSI report is less than or equal to the value of y in the priority of the second CSI report which has the same channel type and reporting time domain type as the first CSI report. The second CSI report is used to report the CSI information of the serving cell. In the priority of the first CSI report, the value of k is less than or equal to the value of k in the priority of the second CSI report, or the value of k in the priority of the first CSI report is 1; c represents the cell identifier of the serving cell, or c represents the cell identifier of any candidate cell in the first candidate cells, or c represents the largest candidate cell identifier, the smallest candidate cell identifier, or any candidate cell identifier in the first candidate cells, or c represents the largest candidate cell identifier, the smallest candidate cell identifier, or any candidate cell identifier in the candidate cell set, wherein the candidate cell set is one or more candidate cells where the reference signal configured by the reference signal resource configuration associated with the report configuration of the first CSI report is located; s represents the report configuration identifier of the first CSI report; M s This represents the sum of the number of report configuration information used to configure the first CSI report and the number of report configuration information used to configure the LTM report, or M. s This represents the sum of the number of report configuration information used to configure the first CSI report, the number of report configuration information used to configure the LTM report, and the number of report configuration information used to configure the second CSI report; N cells This represents the maximum number of serving cells, or N. cells This represents the sum of the maximum number of serving cells and the maximum number of candidate cells, or N. cells This indicates the maximum number of candidate cells.

16. The method according to claim 15, characterized in that, If the first candidate cell is a candidate cell of the primary cell, then c represents the cell identifier of the primary cell; or, the value of c is 0.

17. The method according to claim 15, characterized in that, The report configuration identifier of the first CSI report is smaller than the report configuration identifier of the second CSI report.

18. The method according to any one of claims 1-17, characterized in that, The priority value of the first CSI report is less than the priority value of the second CSI report; or, If the priority value of the first CSI report is the same as the priority value of the second CSI report, then the priority of the first CSI report is higher than the priority of the second CSI report. The second CSI report is used to report the CSI information of the serving cell.

19. The method according to any one of claims 1-18, characterized in that, The first CSI report has a lower priority than the LTM report; or, The priority value of the first CSI report is greater than the priority value of the LTM report; or, If the priority value of the first CSI report is the same as the priority value of the LTM report, then the priority of the first CSI report is lower than the priority of the LTM report. The LTM report is used to report the beam information of candidate cells.

20. The method according to any one of claims 1-19, characterized in that, If the priority value of the first CSI report is the same as the priority value of the third CSI report, the third CSI report is used to report the CSI information of the second candidate cell, and the beam information of the first candidate cell is greater than the beam information of the second candidate cell, then The first CSI report has a higher priority than the third CSI report; The second candidate cell includes one or more candidate cells.

21. The method according to any one of claims 1-20, characterized in that, The priority of CSI information in the first candidate cell is lower than the priority of Hybrid Automatic Repeat Request (HARQ) - Determine ACK information; and / or, The priority of the CSI information of the first candidate cell is lower than the priority of the scheduling request information.

22. The method according to any one of claims 1-21, characterized in that, The CSI information of the first candidate cell includes information located in part 1 of the first CSI report and information located in part 2 of the first CSI report. The information located in part 1 of the first CSI report has a higher priority than the information located in part 2 of the first CSI report. And / or, The CSI information of the first candidate cell includes the CSI information of the candidate cell corresponding to the first identifier and the CSI information of the candidate cell corresponding to the second identifier. The first identifier and the second identifier are one of the candidate cell identifiers of the first candidate cell. If the first identifier is less than the second identifier, the priority of the CSI information of the candidate cell corresponding to the first identifier is higher than the priority of the CSI information of the candidate cell corresponding to the second identifier. And / or, The CSI information of the first candidate cell includes the CSI information of the candidate cell corresponding to the first beam information and the CSI information of the candidate cell corresponding to the second beam information. The first beam information and the second beam information are one of the beam information of the candidate cells reported by the LTM report. If the first beam information is greater than the second beam information, the priority of the CSI information of the candidate cell corresponding to the first beam information is higher than the priority of the CSI information of the candidate cell corresponding to the second beam information. And / or, The CSI information of the first candidate cell includes broadband CSI and subband CSI, with the priority of broadband CSI being higher than that of subband CSI. And / or, The CSI information of the first candidate cell includes the CSI information corresponding to the first sub-band number and the CSI information corresponding to the second sub-band number. If the first sub-band number is less than the second sub-band number, the priority of the CSI information corresponding to the first sub-band number is lower or higher than the priority of the CSI information corresponding to the second sub-band number.

23. The method according to any one of claims 1-22, characterized in that, The CSI information of the first candidate cell includes a first PMI and a first CQI; if the first PMI and the first CQI are in part 1 or part 2 of the first CSI report, then the priority of the first PMI is lower or higher than the priority of the first CQI.

24. The method according to any one of claims 1-22, characterized in that, The CSI information of the first candidate cell includes a second PMI and a second CQI, wherein the priority of the second PMI is lower or higher than the priority of the second CQI.

25. A communication device, characterized in that, include: The receiving unit is configured to receive first configuration information, which is used to configure the CSI measurement reporting of candidate cells that trigger mobility LTM at layer 1 or layer 2. The sending unit is configured to send a first CSI report according to the first configuration information. The first CSI report is used to report the CSI information of a first candidate cell, which includes one or more candidate cells. The receiving unit is further configured to receive a cell handover command, which is used to instruct a handover from the serving cell to one of the candidate cells in the first candidate cells.

26. A communication device, characterized in that, include: The sending unit is used to send first configuration information, which is used to configure the CSI measurement reporting of candidate cells that trigger mobility LTM in layer 1 or layer 2. The receiving unit is configured to receive a first CSI report according to the first configuration information. The first CSI report is used to report the CSI information of a first candidate cell, which includes one or more candidate cells. The sending unit is further configured to send a cell handover command, which indicates a handover from the serving cell to one of the candidate cells in the first candidate cells.

27. A terminal device, comprising a processor, a memory, and a computer program or instructions stored in the memory, characterized in that, The processor executes the computer program or instructions to implement the steps of the method according to any one of claims 1, 3-24.

28. A network device, comprising a processor, a memory, and a computer program or instructions stored in the memory, characterized in that, The processor executes the computer program or instructions to implement the steps of the method according to any one of claims 2-24.

29. A chip, comprising a processor and a communication interface, characterized in that, The processor performs the steps of the method according to any one of claims 1-24.

30. A computer-readable storage medium, characterized in that, It stores a computer program or instructions that, when executed, implement the steps of the method as described in any one of claims 1-24.

Images