Communication method, communication device, communication system, and storage medium

Abstract

The present disclosure provides a communication method, a communication device, a communication system, and a storage medium. The method comprises: on the basis of a first reference signal resource of a first cell, performing CSI measurement on the first cell, wherein the first cell is not a serving cell for a terminal; and sending a CSI report of the first cell to a network device. In embodiments of the present disclosure, before handover, CSI measurement can be performed on the first cell on the basis of the first reference signal resource, so that a CSI report of the first cell can be obtained in a timely manner. When the first cell becomes a new serving cell for the terminal, the network device can schedule the terminal in a timely manner on the basis of the CSI report of the first cell.

Description

Communication method, communication device, communication system, storage medium TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and particularly relates to a communication method, a communication device, a communication system and a storage medium. BACKGROUND

[0002] In new radio (NR), especially when the communication frequency band is in frequency range 2 (above 6 GHz), due to fast high-frequency channel attenuation, in order to ensure coverage range and communication quality, a base station configures multiple candidate cells for a terminal, and performs measurement on the multiple candidate cells, and further implements fast cell switching of the terminal based on the measurement result.

[0003] SUMMARY

[0004] The present disclosure provides a communication method, a communication device, a communication system and a storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a communication method is provided, executed by a terminal, comprising:

[0006] performing channel state information (CSI) measurement on a first cell based on a first reference signal resource of the first cell, the first cell being not a serving cell of the terminal;

[0007] sending a CSI report of the first cell to a network device.

[0008] According to a second aspect of an embodiment of the present disclosure, a communication method is provided, executed by a network device, comprising:

[0009] sending at least one of first information and second information to a terminal, the at least one of the first information and the second information being used to determine a first reference signal resource of a first cell, the first reference signal resource being used for CSI measurement on the first cell, the first cell being not a serving cell of the terminal;

[0010] receiving a CSI report of the first cell sent by the terminal.

[0011] According to a third aspect of an embodiment of the present disclosure, a communication method is provided, used in a communication system, the communication system comprising a terminal and a network device, the method comprising:

[0012] the network device sends first information or second information to the terminal;

[0013] The terminal receives at least one of the first information and the second information, and determines the first reference signal resource of the first cell according to at least one of the first information and the second information;

[0014] The terminal performs CSI measurement on the first cell according to the first reference signal resource;

[0015] The terminal sends the CSI report of the first cell to the network device;

[0016] The network device receives the CSI report of the first cell.

[0017] According to a fourth aspect of the embodiments of the present disclosure, a terminal is provided, comprising:

[0018] A processing module is configured to perform CSI measurement on a first cell based on a first reference signal resource of the first cell, the first cell being a non-serving cell of the terminal.

[0019] A transceiver module is configured to send a CSI report of the first cell to a network device.

[0020] According to a fifth aspect of the embodiments of the present disclosure, a network device is provided, comprising:

[0021] A transceiver module is configured to send at least one of first information and second information to a terminal, the at least one of the first information and the second information being used to determine a first reference signal resource of a first cell, the first reference signal resource being used for CSI measurement on the first cell, the first cell being a non-serving cell of the terminal, and receive a CSI report of the first cell sent by the terminal.

[0022] According to a sixth aspect of the embodiments of the present disclosure, a terminal is provided, comprising one or more processors; wherein the terminal is configured to perform the communication method according to the first aspect.

[0023] According to a seventh aspect of the embodiments of the present disclosure, a network device is provided, comprising one or more processors; wherein the network device is configured to perform the communication method according to the second aspect.

[0024] According to an eighth aspect of the embodiments of the present disclosure, a communication system is provided, comprising a terminal and a network device, wherein the terminal is configured to implement the communication method according to the first aspect, and the network device is configured to implement the communication method according to the second aspect.

[0025] According to a ninth aspect of the embodiments of the present disclosure, a storage medium is provided, which stores instructions, when the instructions run on a communication device, causing the communication device to perform the communication method according to any one of the first aspect to the second aspect.

[0026] According to a tenth aspect of the embodiments of the present disclosure, a program product is provided, comprising a computer program, which, when executed by a communication device, implements the communication method described in the first aspect and the second aspect.

[0027] According to an eleventh aspect of the embodiments of the present disclosure, a computer program is provided, which, when executed on a computer, causes the computer to perform the communication method described in the first aspect and the second aspect.

[0028] It can be understood that the terminal, the network device, the communication device, the communication system, the storage medium, the program product, and the computer program are all used to execute the method provided by the embodiments of the present disclosure. Therefore, the beneficial effects achieved by the above can refer to the beneficial effects in the corresponding method, which will not be described here. BRIEF DESCRIPTION OF DRAWINGS

[0029] The above and / or additional aspects and advantages of the present disclosure will become apparent and be readily appreciated from the following description, including the accompanying drawings, wherein:

[0030] FIG. 1 is a schematic diagram of the architecture of some communication systems according to an embodiment of the present disclosure;

[0031] FIG. 2A is a flow diagram of a communication method according to an embodiment of the present disclosure;

[0032] FIG. 2B is a flow diagram of another communication method according to an embodiment of the present disclosure;

[0033] FIG. 2C is a flow diagram of another communication method according to an embodiment of the present disclosure;

[0034] FIG. 3A is a flow diagram of another communication method according to an embodiment of the present disclosure;

[0035] FIG. 3B is a flow diagram of another communication method according to an embodiment of the present disclosure;

[0036] FIG. 3C is a flow diagram of another communication method according to an embodiment of the present disclosure;

[0037] FIG. 3D is a flow diagram of another communication method according to an embodiment of the present disclosure;

[0038] FIG. 3E is a flow diagram of another communication method according to an embodiment of the present disclosure;

[0039] FIG. 4A is a flow diagram of another communication method according to an embodiment of the present disclosure;

[0040] FIG. 4B is a flow diagram of another communication method according to an embodiment of the present disclosure;

[0041] FIG. 4C is a flow diagram of another communication method, according to an embodiment of the present disclosure;

[0042] FIG. 5 is a flow diagram of another communication method, according to an embodiment of the present disclosure;

[0043] FIG. 6A is a structural diagram of a terminal, according to an embodiment of the present disclosure;

[0044] FIG. 6B is a structural diagram of a network device, according to an embodiment of the present disclosure;

[0045] FIG. 7A is a structural diagram of a communication device, according to an embodiment of the present disclosure;

[0046] FIG. 7B is a structural diagram of a chip, according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0047] Embodiments of the present disclosure provide a communication method, a communication device, a communication system, and a storage medium.

[0048] In a first aspect, embodiments of the present disclosure provide a communication method, performed by a terminal, the method comprising:

[0049] performing CSI measurement on a first cell based on a first reference signal resource of the first cell, the first cell being not a serving cell of the terminal; and sending a CSI report of the first cell to a network device.

[0050] In the above embodiments, in the case that the first cell is not the serving cell, the CSI measurement on the first cell can be performed based on the first reference signal resource of the first cell, that is, the CSI measurement on the first cell can be performed based on the first reference signal resource before the handover, so that the CSI report of the first cell can be obtained in time, and when the first cell becomes a new serving cell of the terminal, the network device can perform timely scheduling on the terminal according to the CSI report of the first cell, so as to improve the efficiency and speed of data transmission, and improve the decoding success rate.

[0051] In combination with some embodiments of the first aspect, in some embodiments, the method further comprises:

[0052] receiving at least one of the first information and the second information sent by the network device;

[0053] determining the first reference signal resource according to at least one of the first information and the second information.

[0054] In the above embodiments, in a case where the first cell is not a serving cell, the first reference signal resource can be determined based on at least one of the first information and the second information before handover, and thus the CSI measurement of the first cell can be implemented.

[0055] In combination with some embodiments of the first aspect, in some embodiments, the first information is one of the following information:

[0056] reporting configuration information of the CSI;

[0057] reporting configuration information of the L1 / L2 triggered mobility LTM-CSI.

[0058] In combination with some embodiments of the first aspect, in some embodiments, the first reference signal resource is one of the following reference signal resources:

[0059] The first reference signal resource is a reference signal resource corresponding to the first cell;

[0060] The first reference signal resource is a reference signal resource having a quasi co-location QCL relationship with a reference signal resource of the first cell.

[0061] In combination with some embodiments of the first aspect, in some embodiments, the CSI reporting of the first cell includes at least one of the following information:

[0062] a precoding matrix indicator PMI;

[0063] a rank indicator RI;

[0064] a channel quality indicator CQI;

[0065] a layer indicator LI;

[0066] a channel state information reference signal resource indicator CRI.

[0067] In combination with some embodiments of the first aspect, in some embodiments, the second information is used to indicate a CSI measurement configuration corresponding to at least one second cell; and the first cell is determined from the second cell based on the second information.

[0068] In combination with some embodiments of the first aspect, in some embodiments, the method further includes:

[0069] The second information is a downlink control information DCI, and the DCI includes a first code point;

[0070] determining, from a first mapping relationship between the code points and trigger states, a first trigger state having a mapping relationship with the first code point;

[0071] From the second mapping relationship between the trigger state and the CSI measurement configuration, a first CSI measurement configuration corresponding to the first trigger state is determined as the CSI measurement configuration corresponding to the at least one second cell.

[0072] In some embodiments of the first aspect, the method further comprises:

[0073] The second information is a medium access control control element (MAC CE), and the first indication field is included in the MAC CE.

[0074] One or more bits in the first indication field correspond to a CSI report configuration ID, a first CSI report configuration ID corresponding to bits with a first value is determined, and a first CSI measurement configuration corresponding to the first CSI report configuration ID is determined as the CSI measurement configuration corresponding to the at least one second cell.

[0075] The second information indicates a CSI measurement configuration corresponding to one second cell, and the second cell is determined to be the first cell.

[0076] In some embodiments of the first aspect, the method further comprises:

[0077] The second information indicates CSI measurement configurations corresponding to a plurality of second cells, and the plurality of second cells are all determined to be the first cell, or part of the plurality of second cells are determined to be the first cell.

[0078] In some embodiments of the first aspect, the method further comprises:

[0079] Beam qualities of the plurality of second cells are determined, and N second cells with the best beam qualities are determined as the part of the second cells, where N is a natural number greater than or equal to 1.

[0080] In some embodiments of the first aspect, the method further comprises:

[0081] The second cell corresponds to a plurality of beam qualities, and an optimal beam quality is determined from the plurality of beam qualities as the beam quality of the second cell.

[0082] In some embodiments of the first aspect, the method further comprises:

[0083] Second cells with beam qualities greater than a first set threshold value in the plurality of second cells are determined as the part of the second cells.

[0084] In some embodiments of the first aspect, the method further comprises:

[0085] determining a beam quality of a serving cell of the terminal;

[0086] determining, from the plurality of second cells, a second cell whose beam quality is greater than a sum of a beam quality of the serving cell and an offset, as the partial second cell.

[0087] In some embodiments in combination with the first aspect, the method further comprises:

[0088] sending, to the network device, an identification of the partial second cell.

[0089] In the above embodiments, the terminal can select a cell with good beam quality from the plurality of second cells configured by the network device as the first cell, so as to ensure that the terminal switches to the first cell with good quality, improve the efficiency and speed of data transmission, and improve the decoding success rate.

[0090] In some embodiments in combination with the first aspect, the method further comprises:

[0091] sending, to a network device corresponding to the serving cell, a CSI report of the first cell; or,

[0092] sending, to a network device corresponding to the first cell, the CSI report of the first cell.

[0093] The serving cell is a cell that sends at least one of the first information and the second information.

[0094] In some embodiments in combination with the first aspect, the method further comprises:

[0095] sending, to the network device, a CSI report of the first cell in a first PUSCH during a process in which the terminal connects to the first cell.

[0096] In some embodiments in combination with the first aspect, the first PUSCH is one of the following PUSCHs:

[0097] a PUSCH including a message 3 in a 4-step random access process;

[0098] a PUSCH including a message A in a 2-step random access process.

[0099] In the above embodiments, sending the CSI report of the first cell through the first PUSCH can enable the network device to quickly obtain the CSI report of the first cell, so as to timely schedule the terminal and realize fast switching of the terminal.

[0100] In some embodiments of the first aspect, in some embodiments, the first cell is one of a candidate cell, a neighbor cell, or a target cell of the terminal.

[0101] In a second aspect, the embodiments of the present disclosure provide a communication method, performed by a network device, the method comprising:

[0102] sending, to a terminal, at least one of first information and second information, the at least one of the first information and the second information being used to determine a first reference signal resource of a first cell, the first reference signal resource being used for CSI measurement on the first cell, the first cell not being a serving cell of the terminal;

[0103] receiving a CSI report of the first cell sent by the terminal.

[0104] In the above embodiments, the network device can indicate the first reference signal resource of the first cell to the terminal, and in the case that the first cell is not a serving cell, the CSI measurement on the first cell can be performed based on the first reference signal resource before the handover, so that the network device can obtain the CSI report of the first cell in time, and when the terminal is switched to the first cell to become a new serving cell of the terminal, the network device can perform timely scheduling on the terminal according to the CSI report of the first cell, improve the efficiency and speed of data transmission, and improve the decoding success rate.

[0105] In some embodiments of the second aspect, in some embodiments, the first reference signal resource is one of the following reference signal resources:

[0106] The first reference signal resource is a reference signal resource corresponding to the first cell;

[0107] The first reference signal resource is a reference signal resource having a quasi co-location (QCL) relationship with a reference signal resource of the first cell.

[0108] In some embodiments of the second aspect, in some embodiments, the first information is one of the following information:

[0109] report configuration information of the CSI;

[0110] report configuration information of L1 / L2 triggered mobility (LTM)-CSI.

[0111] In some embodiments of the second aspect, in some embodiments, the CSI includes at least one of the following information:

[0112] a precoding matrix indicator (PMI);

[0113] a rank indicator (RI);

[0114] Channel Quality Indicator, CQI;

[0115] Layer Indicator, LI;

[0116] Channel State Information Reference Signal Resource Indicator, CRI.

[0117] With reference to the second aspect, in some embodiments, the method further includes:

[0118] sending, to the terminal, second information, wherein the second information is used to indicate CSI measurement configuration corresponding to at least one second cell, and the first cell is a cell in the second cell.

[0119] With reference to the second aspect, in some embodiments, the method further includes:

[0120] the second information is DCI, and the DCI is sent to the terminal, wherein the DCI includes a first code point, the first code point is used to determine a first trigger state from a first mapping relationship between code points and trigger states, and the first trigger state is used to determine the CSI measurement configuration of the second cell.

[0121] With reference to the second aspect, in some embodiments, the second information is a Medium Access Control Control Element, MAC CE, and the MAC CE is sent to the terminal, wherein the MAC CE includes a first indication field;

[0122] one or more bits in the first indication field correspond to a CSI report configuration ID, and a bit with a first value in the bits is used to determine a first CSI measurement configuration corresponding to a corresponding first CSI report configuration ID, and the first CSI measurement configuration is used to determine the CSI measurement configuration corresponding to the at least one second cell.

[0123] With reference to the second aspect, in some embodiments, the second information indicates the CSI measurement configuration corresponding to one second cell, and the second cell is the first cell.

[0124] With reference to the second aspect, in some embodiments, the second information indicates the CSI measurement configuration corresponding to a plurality of second cells, and the plurality of second cells are all the first cell; or, part of the plurality of second cells are the first cell.

[0125] With reference to the second aspect, in some embodiments, the part of the cells are N second cells with the strongest beam quality in the plurality of second cells, and the N is a natural number greater than or equal to 1.

[0126] In some embodiments of the second aspect, in some embodiments, the second cell corresponds to a plurality of beam qualities, and a best beam quality in the plurality of beam qualities is a beam quality of the second cell.

[0127] In some embodiments of the second aspect, in some embodiments, a second cell in the plurality of second cells whose beam quality is greater than a first set threshold value is the part of the second cells.

[0128] In some embodiments of the second aspect, in some embodiments, a second cell in the plurality of second cells whose beam quality is greater than a sum of a beam quality of the serving cell and an offset is the part of the second cells.

[0129] In some embodiments of the second aspect, in some embodiments, the method further comprises:

[0130] receiving an identification of the part of the second cells sent by the terminal.

[0131] In some embodiments of the second aspect, in some embodiments, the network device comprises at least one of a network device corresponding to a serving cell of the terminal and a network device corresponding to the first cell, wherein the serving cell is a cell sending at least one of the first information and the second information.

[0132] In some embodiments of the second aspect, in some embodiments, the method further comprises:

[0133] receiving a CSI report of the first cell on a first PUSCH in a process in which the terminal connects to the first cell.

[0134] In some embodiments of the second aspect, in some embodiments, the first PUSCH is one of the following PUSCHs:

[0135] a PUSCH including a message 3 in a 4-step random access procedure;

[0136] a PUSCH including a message A in a 2-step random access procedure.

[0137] In some embodiments of the second aspect, in some embodiments, the first cell is one of a candidate cell, a neighbor cell, or a target cell of the terminal.

[0138] In a third aspect, the embodiments of the present disclosure provide a communication method, applied to a communication system, the communication system comprising a terminal and a network device, and the method comprises:

[0139] the network device sending at least one of first information and second information to the terminal;

[0140] The terminal receives at least one of the first information and the second information, and determines a first reference signal resource of a first cell according to at least one of the first information and the second information, the first cell being not a serving cell of the terminal;

[0141] The terminal performs CSI measurement on the first cell according to the first reference signal resource;

[0142] The terminal sends a CSI report of the first cell to the network device;

[0143] The network device receives the CSI report of the first cell.

[0144] In a fourth aspect, an embodiment of the present disclosure provides a terminal, comprising:

[0145] A processing module is configured to perform CSI measurement on a first cell based on a first reference signal resource of the first cell, the first cell being not a serving cell of the terminal;

[0146] A transceiver is configured to send a CSI report of the first cell to a network device.

[0147] In combination with some embodiments of the fourth aspect, in some embodiments, the transceiver is further configured to receive at least one of first information and second information sent by the network device;

[0148] The processing module is further configured to determine the first reference signal resource according to at least one of the first information and the second information.

[0149] In combination with some embodiments of the fourth aspect, in some embodiments, the first information is one of the following information:

[0150] Report configuration information of CSI;

[0151] Report configuration information of L1 / L2 triggered mobility LTM-CSI.

[0152] In combination with some embodiments of the fourth aspect, in some embodiments, the first reference signal resource is one of the following reference signal resources:

[0153] The first reference signal resource is a reference signal resource corresponding to the first cell;

[0154] The first reference signal resource is a reference signal resource having a quasi co-location QCL relationship with a reference signal resource of the first cell.

[0155] In combination with some embodiments of the fourth aspect, in some embodiments, the CSI report of the first cell includes at least one of the following information:

[0156] precoding matrix indicator, PMI;

[0157] rank indicator, RI;

[0158] channel quality indicator, CQI;

[0159] layer indicator, LI;

[0160] channel state information reference signal resource indicator, CRI.

[0161] In some embodiments of the fourth aspect, in some embodiments, the second information is used to indicate the CSI measurement configuration corresponding to one or more second cells.

[0162] The processing module is further configured to determine the first cell from the second cells based on the second information.

[0163] In some embodiments of the fourth aspect, in some embodiments, the second information is downlink control information, DCI, and the DCI includes a first codepoint.

[0164] The processing module is further configured to determine, from a first mapping relationship between codepoints and trigger states, a first trigger state that has a mapping relationship with the first codepoint, and determine, from a second mapping relationship between trigger states and CSI measurement configurations, a first CSI measurement configuration that has a mapping relationship with the first trigger state as the CSI measurement configuration corresponding to the at least one second cell.

[0165] In some embodiments of the fourth aspect, in some embodiments, the second information is a medium access control control element, MAC CE, and the MAC CE includes a first indication field; one or more bits in the first indication field correspond to a CSI report configuration ID, and the processing module is further configured to determine a first CSI report configuration ID corresponding to a bit whose value is a first value, and determine a first CSI measurement configuration corresponding to the first CSI report configuration ID as the CSI measurement configuration corresponding to the at least one second cell.

[0166] In some embodiments of the fourth aspect, in some embodiments, the second information indicates a CSI measurement configuration corresponding to one second cell, and the processing module is further configured to determine that the second cell is the first cell.

[0167] In some embodiments of the fourth aspect, in some embodiments, the second information indicates CSI measurement configurations corresponding to multiple second cells, and the processing module is further configured to determine that the multiple second cells are all the first cell, or determine that part of the multiple second cells are the first cell.

[0168] In some embodiments of the fourth aspect, in some embodiments, the method further comprises:

[0169] The processing module is further configured to determine the beam quality of the plurality of second cells, and determine N second cells with the best beam quality as the partial second cells, where N is a natural number greater than or equal to 1.

[0170] In some embodiments of the fourth aspect, in some embodiments, the second cell corresponds to a plurality of beam qualities, and the processing module is further configured to determine an optimal beam quality from the plurality of beam qualities as the beam quality of the second cell.

[0171] In some embodiments of the fourth aspect, in some embodiments, the processing module is further configured to determine, from the plurality of second cells, a second cell with a beam quality greater than a first set threshold as the partial second cell.

[0172] In some embodiments of the fourth aspect, in some embodiments, the processing module is further configured to determine the beam quality of a serving cell of the terminal, and determine, from the plurality of second cells, a second cell with a beam quality greater than a sum of the beam quality of the serving cell and an offset as the partial second cell.

[0173] In some embodiments of the fourth aspect, in some embodiments, the transceiver is further configured to send, to the network device, an identifier of the partial second cell.

[0174] In some embodiments of the fourth aspect, in some embodiments, the transceiver is further configured to send, to a network device corresponding to a serving cell, a CSI report of the first cell, or send, to a network device corresponding to the first cell, a CSI report of the first cell.

[0175] In some embodiments of the fourth aspect, in some embodiments, the serving cell is a cell that sends at least one of the first information and the second information.

[0176] In some embodiments of the fourth aspect, in some embodiments, the transceiver is further configured to send, to a network device corresponding to a serving cell, a CSI report of the first cell, or send, to a network device corresponding to the first cell, a CSI report of the first cell.

[0177] In some embodiments of the fourth aspect, in some embodiments, the first PUSCH is one of the following PUSCHs:

[0178] a PUSCH including a message 3 in a 4-step random access procedure;

[0179] a PUSCH including a message A in a 2-step random access procedure.

[0180] In some embodiments of the fourth aspect, in some embodiments, the first cell is one of a candidate cell, a neighbor cell, or a target cell of the terminal.

[0181] In a fifth aspect, the embodiments of the present disclosure provide a network device, comprising:

[0182] a transceiver, configured to send at least one of first information and second information to a terminal, the at least one of the first information and the second information being used to determine a first reference signal resource of a first cell, the first reference signal resource being used for CSI measurement on the first cell; the first cell not being a serving cell of the terminal; and receive a CSI report of the first cell sent by the terminal.

[0183] In some embodiments of the fifth aspect, in some embodiments, the first reference signal resource is one of the following reference signal resources:

[0184] The first reference signal resource is a reference signal resource corresponding to the first cell;

[0185] The first reference signal resource is a reference signal resource having a quasi co-location (QCL) relationship with a reference signal resource of the first cell.

[0186] In some embodiments of the fifth aspect, in some embodiments, the first information is one of the following information:

[0187] report configuration information of the CSI;

[0188] report configuration information of L1 / L2 triggered mobility (LTM)-CSI.

[0189] In some embodiments of the fifth aspect, in some embodiments, the CSI includes at least one of the following information:

[0190] a precoding matrix indicator (PMI);

[0191] a rank indicator (RI);

[0192] a channel quality indicator (CQI);

[0193] a layer indicator (LI);

[0194] a channel state information reference signal resource indicator (CRI).

[0195] In some embodiments of the fifth aspect, in some embodiments, the transceiver is further configured to send second information to the terminal, wherein the second information is used to indicate a CSI measurement configuration corresponding to at least one second cell, and the first cell is one of the second cells.

[0196] In some embodiments of the fifth aspect, in some embodiments, the second information is DCI, and the transceiver is further configured to send, to the terminal, DCI, wherein the DCI includes a first code point, and the first code point is used to determine a first trigger state from a first mapping relationship between code points and trigger states, and the first trigger state is used to determine the CSI measurement configuration of the second cell.

[0197] In some embodiments of the fifth aspect, in some embodiments, the second information is a medium access control control element (MAC CE), and the MAC CE includes a first indication field; one or more bits in the first indication field correspond to a CSI report configuration ID, and a bit with a first value in the bits is used to determine a first CSI measurement configuration corresponding to a corresponding first CSI report configuration ID, and the first CSI measurement configuration is used to determine the CSI measurement configuration of the at least one second cell.

[0198] In some embodiments of the fifth aspect, in some embodiments, the second information indicates the CSI measurement configuration of one second cell, and the second cell is the first cell.

[0199] In some embodiments of the fifth aspect, in some embodiments, the second information indicates the CSI measurement configuration of a plurality of second cells, and each of the plurality of second cells is the first cell; or, part of the plurality of second cells is the first cell.

[0200] In some embodiments of the fifth aspect, in some embodiments, the part of the cells are N second cells with the best beam quality in the plurality of second cells, and N is a natural number greater than or equal to 1.

[0201] In some embodiments of the fifth aspect, in some embodiments, the second cell corresponds to a plurality of beam qualities, and the best beam quality in the plurality of beam qualities is the beam quality of the second cell.

[0202] In some embodiments of the fifth aspect, in some embodiments, a second cell with a beam quality greater than a first set threshold value in the plurality of second cells is the part of the second cells.

[0203] In some embodiments of the fifth aspect, in some embodiments, a second cell with a beam quality greater than a sum of a beam quality of the serving cell and an offset in the plurality of second cells is the part of the second cells.

[0204] In some embodiments of the fifth aspect, in some embodiments, the transceiver is further configured to receive an identification of the part of the second cells sent by the terminal.

[0205] In some embodiments of the fifth aspect, in some embodiments, the network device comprises at least one of a network device corresponding to a serving cell of the terminal and a network device corresponding to the first cell, wherein the serving cell is a cell that transmits at least one of the first information and the second information.

[0206] In some embodiments of the fifth aspect, in some embodiments, the receiving module is further configured to receive a CSI report of the first cell on a first PUSCH in a process in which the terminal connects to the first cell.

[0207] In some embodiments of the fifth aspect, in some embodiments, the first PUSCH is one of the following PUSCHs:

[0208] a PUSCH comprising a message 3 in a 4-step random access procedure;

[0209] a PUSCH comprising a message A in a 2-step random access procedure.

[0210] In some embodiments of the fifth aspect, in some embodiments, the first cell is one of a candidate cell, a neighbor cell, or a target cell of the terminal.

[0211] In a sixth aspect, the embodiments of the present disclosure provide a terminal, comprising: one or more processors; wherein the terminal is configured to perform the method described in the first aspect and the optional implementation manners of the first aspect.

[0212] In a seventh aspect, the embodiments of the present disclosure provide a network device, comprising: one or more processors; wherein the network device is configured to perform the method described in the second aspect and the optional implementation manners of the second aspect.

[0213] In an eighth aspect, the embodiments of the present disclosure provide a communication system, comprising: a terminal, a network device; wherein the terminal is configured to perform the method described in the first aspect and the optional implementation manners of the first aspect, and the network device is configured to perform the method described in the second aspect and the optional implementation manners of the second aspect.

[0214] In a ninth aspect, the embodiments of the present disclosure provide a storage medium, which stores instructions, when the instructions are executed on a communication device, causing the communication device to perform the method described in the first aspect, the optional implementation manners of the first aspect, the second aspect, and the optional implementation manners of the second aspect.

[0215] In a tenth aspect, the embodiments of the present disclosure provide a program product, comprising a computer program, when the computer program is executed by a processor, implementing the method described in the first aspect, the optional implementation manners of the first aspect, the second aspect, and the optional implementation manners of the second aspect.

[0216] In a eleventh aspect, a computer program product is provided. When the computer program product runs on a computer, the computer program product enables the computer to perform the method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.

[0217] In a twelfth aspect, a chip or chip system is provided. The chip or chip system includes processing circuitry configured to perform the method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.

[0218] It can be understood that the terminal, the network device, the communication device, the communication system, the storage medium, the program product, and the computer program described above are used to execute the method proposed in the embodiments of the present disclosure. Therefore, the beneficial effects achieved by the above-mentioned terminal, network device, communication device, communication system, storage medium, program product, and computer program can refer to the beneficial effects in the corresponding method, which will not be described here.

[0219] The embodiments of the present disclosure propose a communication method, a communication device, a communication system, and a storage medium. In some embodiments, the communication method and the information processing method, the information sending method, and the information receiving method can be replaced with each other, the communication device and the information processing device, the information sending device, and the information receiving device can be replaced with each other, and the information processing system, the communication system, the information sending system, and the information receiving system can be replaced with each other.

[0220] The embodiments of the present disclosure are not exhaustive, but only illustrate some embodiments, and are not specific limitations on the protection scope of the present disclosure. In the case of no contradiction, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily, for example, the scheme after removing some steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be exchanged arbitrarily, in addition, the optional implementation in an embodiment can be combined arbitrarily; in addition, the embodiments can be combined arbitrarily, for example, some or all steps of different embodiments can be combined arbitrarily, and an embodiment can be combined with the optional implementation of other embodiments.

[0221] In each embodiment of the present disclosure, the terms and / or descriptions between the embodiments are consistent if there is no special description and logical conflict, and can be referred to each other, and the technical features in different embodiments can be combined to form a new embodiment according to the logical relationship between them.

[0222] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments, and not as a limitation on the present disclosure.

[0223] In the embodiments of the present disclosure, an element represented in singular form, such as "a", "an", "the", "said", "the aforementioned", "the foregoing", "this", and the like, unless otherwise specified, can represent "one and only one", or can represent "one or more", "at least one", and the like. For example, in the case of using an article such as "a", "an", "the" in English, the noun after the article can be understood as a singular expression, or can be understood as a plural expression.

[0224] In the embodiments of the present disclosure, "plurality" refers to two or more.

[0225] In some embodiments, the terms "at least one of", "at least one of", "at least one of", "one or more", "a plurality of", "multiple", and the like can be replaced with each other.

[0226] In the embodiments of the present disclosure, the description manner such as "at least one of A, B, C, and the like", "A and / or B and / or C, and the like" includes any one of A, B, C, and the like existing alone, and also includes any combination of any multiple of A, B, C, and the like, each of which can exist alone; for example, "at least one of A, B, C" includes the cases of A alone, B alone, C alone, A and B in combination, A and C in combination, B and C in combination, A and B and C in combination; for example, A and / or B includes the cases of A alone, B alone, and the combination of A and B.

[0227] In some embodiments, the description manner such as "A in one case, and B in another case", "in response to case A, in response to case B", and the like, according to the case, can include the following technical solutions: A is executed regardless of B, that is, A in some embodiments; B is executed regardless of A, that is, B in some embodiments; A and B are selectively executed, that is, A and B are selected from A and B to be executed in some embodiments; A and B are both executed, that is, A and B in some embodiments. When there are more branches such as A, B, C, and the like, it is similar to the above.

[0228] The prefix words of "first", "second" and the like in the embodiments of the present disclosure are merely used to distinguish different description objects, and do not constitute limitation on the position, order, priority, quantity or content of the description objects. The description objects are described in the claims or embodiments, and should not be construed as redundant limitation because of the use of the prefix words. For example, the description object is "field", and the ordinal words before "field" in "first field" and "second field" do not limit the position or order between "fields", and "first" and "second" do not limit whether the "fields" modified thereby are in the same message or not, nor limit the order of "first field" and "second field". For another example, the description object is "level", and the ordinal words before "level" in "first level" and "second level" do not limit the priority between "levels". For another example, the quantity of the description object is not limited by the ordinal words, and can be one or more. For example, "first device", wherein the quantity of "device" can be one or more. In addition, the objects modified by different prefix words can be the same or different, for example, the description object is "device", and "first device" and "second device" can be the same device or different devices, and the types thereof can be the same or different. For another example, the description object is "information", and "first information" and "second information" can be the same information or different information, and the contents thereof can be the same or different.

[0229] In some embodiments, "including A", "containing A", "for indicating A", "carrying A" can be interpreted as directly carrying A, or indirectly indicating A.

[0230] In some embodiments, the terms of "in response to", "in response to determining", "in the case of", "when", "when", "if", "if" and the like can be replaced with each other.

[0231] In some embodiments, the terms of "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not lower than", "above" and the like can be replaced with each other, and the terms of "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", "below" and the like can be replaced with each other.

[0232] In some embodiments, an apparatus or the like can be interpreted as an entity, and can also be interpreted as virtual, and the name thereof is not limited to the name described in the embodiments, and the terms "apparatus", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject" and the like can be replaced with each other.

[0233] In some embodiments, a "network" can be interpreted as an apparatus (for example, an access network device, a core network device, and the like) included in the network.

[0234] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "carrier", "component carrier", "bandwidth part (BWP)" and the like can be replaced with each other.

[0235] In some embodiments, the terms "terminal," "terminal device," "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," and so on can be replaced with each other.

[0236] In some embodiments, an access network device, a core network device, or a network device can be replaced with a terminal. For example, for a structure in which communication between an access network device, a core network device, or a network device and a terminal is replaced with communication between a plurality of terminals (for example, also referred to as device-to-device (D2D), vehicle-to-everything (V2X), and so on), embodiments of the present disclosure can also be applied. In this case, a structure in which a terminal has all or part of the functions of an access network device can also be provided. Furthermore, the language of "uplink," "downlink," and so on can also be replaced with language corresponding to communication between terminals (for example, "side"). For example, an uplink channel, a downlink channel, and so on can be replaced with a side channel, and an uplink, a downlink, and so on can be replaced with a side link.

[0237] In some embodiments, a terminal can be replaced with an access network device, a core network device, or a network device. In this case, a structure in which an access network device, a core network device, or a network device has all or part of the functions of a terminal can also be provided.

[0238] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0239] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0240] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0241] The correspondences shown in the tables of this disclosure can be configured or predefined. The values ​​of the information in each table are merely examples and can be configured to other values; this disclosure is not limiting. When configuring the correspondences between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, the correspondences shown in some rows of the tables in this disclosure may not be configured. Furthermore, appropriate modifications and adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the headers of the above tables can also use other names that the communication device can understand, and the values ​​or representations of the parameters can also be other values ​​or representations that the communication device can understand. In the implementation of the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, or hash tables, etc.

[0242] The predefined terms in this disclosure can be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0243] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1, the communication system may include a terminal 101 and a network device 102.

[0244] In some embodiments, the terminal example 101 described above is at least one of a mobile phone, a wearable device, an Internet of Things (IoT) device, a Narrow Band Internet of Things (NB-IOT) device, a communication-capable automobile, a smart automobile, a tablet (Pad), a wireless transceiver-equipped computer, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, but is not limited thereto.

[0245] In some embodiments, the network device 102 described above is at least one of a node or a device that accesses a terminal to a wireless network, for example, an evolved NodeB (eNB) in a 5G communication system, a next generation eNB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an Open RAN, a Cloud RAN, a base station in other communication systems, an access node in a wireless fidelity (WiFi) system, but is not limited thereto.

[0246] In some embodiments, the technical solutions of the present disclosure can be applied to an Open RAN architecture, at this time, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can become internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0247] In some embodiments, the access network device can be composed of a central unit (CU) and a distributed unit (DU), where the CU can also be referred to as a control unit. The CU-DU structure can split the protocol layers of the access network device, and some of the protocol layers are controlled by the CU, and the rest or all of the protocol layers are distributed in the DU and controlled by the CU. However, the present disclosure is not limited thereto.

[0248] It can be understood that the communication system described in the embodiments of the present disclosure is for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions proposed by the embodiments of the present disclosure. It can be known by those skilled in the art that, as the system architecture evolves and new business scenarios appear, the technical solutions proposed by the embodiments of the present disclosure are also applicable to similar technical problems.

[0249] The following embodiments of the present disclosure can be applied to the communication system 100 shown in FIG. 1 or part of the subject, but are not limited thereto. The subjects shown in FIG. 1 are exemplary, and the communication system can include all or part of the subjects in FIG. 1, or other subjects other than FIG. 1. The number and form of each subject is arbitrary, the connection relationship between each subject is exemplary, each subject can be connected or not connected, and the connection can be in any way, can be direct connection or indirect connection, can be wired connection or wireless connection.

[0250] Embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), 6th generation mobile communication system (6G), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (Bluetooth (registered trademark)), Public Land Mobile Network (PLMN) network, Device-to-Device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Vehicle-to-Everything (V2X), system using other communication methods, next-generation system expanded based thereon, and the like. Further, a plurality of systems can be applied in combination (for example, combination of LTE or LTE-A and 5G, and the like).

[0251] In NR, especially when the communication frequency band is in frequency range 2 (above 6 GHz), due to the rapid attenuation of high-frequency channels, in order to ensure coverage, beam-based transmission and reception need to be used. In order to realize the fast switching of the terminal, Rel-18 studies L1 / L2 trigger mobility (LTM), that is, the base station configures multiple candidate cells for the terminal, each candidate cell is configured with some Synchronization Signal Block (SSB), and the terminal can measure the SSB of the candidate cell and report the measurement result of the SSB corresponding to the M candidate cells, wherein the measurement result of N SSBs on each candidate cell is reported, such as Layer 1 Reference Signal Received Power (L1-RSRP).

[0252] Based on this measurement result, the base station configures a target cell for the terminal, and a Transport configuration indicator (TCI) state identifier (ID) corresponding to the target cell. The reference signal resource (RS) indicated in the TCI state ID can be the SSB of the target cell, or the Tracking Reference Signal (TRS) having a Quasi Co-Location (QCL) relationship with the SSB of the target cell.

[0253] In some embodiments, after the terminal switches to the target cell, the target cell becomes a new serving cell, and the terminal needs to first obtain the configuration information of the reference signal resource of the new serving cell for CSI measurement and CSI reporting, then perform CSI measurement, and then report the CSI to the new serving cell. The new serving cell schedules the terminal based on the obtained CSI and transmits data. However, this will cause a large data transmission delay. If the new serving cell does not obtain the CSI of the terminal and directly schedules the terminal based on the default CSI, if the default CSI is poor, the transmission rate of the terminal will be low, and if the default CSI is high, the decoding success rate will be low, so the transmission rate will also be low.

[0254] To solve the above problems, the method provided in the embodiments of the present disclosure can perform CSI measurement on the first cell when the first cell is not a serving cell of the terminal, so that the network device can obtain the CSI report of the first cell in time, and when the first cell becomes a serving cell of the terminal, the terminal can be scheduled in time according to the CSI report of the first cell.

[0255] FIG. 2A is an interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 2A, the embodiments of the present disclosure relate to a communication method for the communication system 100, and the above method comprises:

[0256] In step S2101, the network device sends first information to the terminal.

[0257] In some embodiments, the network device can send the first information to the terminal, and optionally, the terminal receives the first information sent by the network device.

[0258] In some embodiments, the first information can be used to determine the first reference signal resource for CSI measurement of the first cell.

[0259] In some embodiments, the first information can be used to indicate the first reference signal resource for CSI measurement of the first cell.

[0260] In some embodiments, the first information can be used to configure the first reference signal resource for CSI measurement of the first cell.

[0261] In some embodiments, the first information can be referred to as “resource determination information”, “resource indication information”, “resource configuration information”, etc.

[0262] In step 2102, the terminal determines the first reference signal resource of the first cell according to the first information.

[0263] In some embodiments, the first cell is not a serving cell of the terminal, that is, the first cell is currently a non-serving cell of the terminal. It can be understood that when the terminal determines the first reference signal resource of the first cell, the first cell is not yet a serving cell of the terminal.

[0264] In some embodiments, the first cell can be one of a candidate cell, a neighbor cell and a target cell of the terminal. It can be understood that when the terminal determines the first reference signal resource, the first cell is not yet a serving cell of the terminal. For example, the first cell can be a cell to which the terminal is about to switch, and after the terminal switches to the first cell, the first cell becomes a serving cell of the terminal.

[0265] In some embodiments, the first information can be report configuration information of CSI. Optionally, the first reference signal resource can be configured based on a CSI framework.

[0266] In some embodiments, the first information can be report configuration information of L1 / L2 triggered mobility (LTM-CSI).

[0267] In some embodiments, the first information includes specific parameters of the first reference signal resource, such as frequency, time location, period, etc. Optionally, the first information can carry an identifier of the resource. Optionally, the first information can further carry additional information of the resource, such as priority of the resource, etc.

[0268] In some embodiments, after receiving the first information, the terminal can determine the first reference signal resource of the first cell according to the information carried in the first information, such as determining the frequency domain and time domain location, port configuration, resource mapping, etc. corresponding to the first cell.

[0269] In some embodiments, the first reference signal resource is a CSI-RS resource corresponding to the first cell, which can include non-zero power (NZP) CSI-RS, SSB, and CSI interference measurement (CSI-IM) resource, etc.

[0270] In some embodiments, the first cell has a set of reference signal resources, and the number or offset of the resource in the set can be indicated by the first information to determine the first reference signal resource from the set of reference signal resources.

[0271] In some embodiments, the first reference signal resource can be a reference signal resource having a quasi co-location (QCL) relationship with the reference signal resource of the first cell. Optionally, the network device can configure and indicate the first reference signal resource having the quasi co-location QCL relationship through radio resource control (RRC) signaling.

[0272] In some embodiments, the first information can be RRC signaling, which can optionally configure a list of (LTM) CSI trigger states, each trigger state in the list corresponding to one or more CSI report configuration IDs (CSI report config IDs), each CSI report config ID corresponding to a corresponding resource configuration, and each resource configuration corresponding to one or more resources of the first cell, which can serve as first reference signal resources.

[0273] In some embodiments, the number of first cells can be one or more.

[0274] At step 2103, the network device sends second information to the terminal.

[0275] In some embodiments, the second information is used to indicate a CSI measurement configuration corresponding to one or more first cells.

[0276] In some embodiments, the CSI measurement configuration can include at least one of the following information:

[0277] The configuration information of the CSI-RS resource, for example, can include resource periodicity: the CSI-RS resource can be periodic, semi-persistent, or aperiodic.

[0278] The type of measurement resource, wherein the measurement type can include a resource for channel measurement and a resource for interference measurement.

[0279] The configuration information of the CSI reporting, for example, can include reporting type, reporting content, reporting frequency, and reporting occasion, etc. The reporting type can be periodic, semi-persistent (based on PUCCH or PUSCH), or aperiodic. The reporting content is the reported parameter, for example, can include a precoding matrix identifier (PMI), a rank identifier (RI), a layer identifier (LI), a channel quality identifier (CQI), etc.

[0280] The codebook information reported by the CSI can include, for example, codebook type and codebook restricted subset, etc. The codebook type is used to specify the type of codebook used when reporting, such as Type I, Type II, or enhanced Type II codebook. The codebook restricted subset is used to limit the range of precoding matrices reported by the terminal.

[0281] Configure power control parameters in the CSI measurement and reporting process;

[0282] Configure the restriction of CSI measurement and reporting in the time domain and frequency domain, etc.

[0283] Step 2104, the terminal performs CSI measurement on the first cell based on the first reference signal resource.

[0284] In some embodiments, the terminal uses the first reference signal resource of the first cell to perform CSI measurement on the first cell according to the CSI measurement configuration of the first cell, to obtain the CSI report of the first cell.

[0285] In some embodiments, the terminal can determine the measurement period, the measurement duration and the measurement frequency according to the CSI measurement configuration, and use the first reference signal resource to perform CSI measurement on the first cell according to the above information, to obtain the CSI report of the first cell.

[0286] Step 2105, the terminal sends the CSI report of the first cell to the network device, and the first cell is not a serving cell of the terminal.

[0287] In some embodiments, the first cell is not a serving cell of the terminal, that is, the first cell is currently a non-serving cell of the terminal. It can be understood that the first cell is not a serving cell of the terminal, that is, when the terminal determines the first reference signal resource of the first cell, the first cell is not a serving cell of the terminal.

[0288] In some embodiments, the CSI report of the first cell can include at least one of the following information:

[0289] Precoding matrix identifier (PMI);

[0290] Rank identifier (RI);

[0291] Channel quality identifier (CQI);

[0292] Layer identifier (LI);

[0293] CSI-RS resource indicator (CRI).

[0294] In some embodiments, the terminal can determine, according to the CSI measurement configuration, parameters such as a reporting type, reporting content, reporting frequency, and reporting occasion of the CSI, and report the CSI of the first cell according to the above parameters. Optionally, the network device receives the CSI report of the first cell reported by the terminal.

[0295] In some embodiments, the terminal can send the CSI report of the first cell to the network device corresponding to the serving cell. That is, the terminal can report the CSI report of the first cell before the handover, and accordingly, the network device receiving the CSI report of the first cell is the network device corresponding to the serving cell. It can be understood that the serving cell is a cell sending at least one of the first information and the second information to the terminal. The serving cell before the handover can also be referred to as an old serving cell.

[0296] In some embodiments, the terminal can send the CSI report of the first cell to the network device corresponding to the first cell. That is, the terminal can report the CSI report of the first cell after the handover, and accordingly, the network device receiving the CSI report of the first cell is the network device corresponding to the first cell. Here, the first cell is the serving cell after the handover, which can also be referred to as a new serving cell.

[0297] It can be understood that if the reference signal resource corresponding to the demodulation reference signal (DMRS) of the physical uplink shared channel (PUSCH) through which the terminal reports the CSI report of the first cell is the reference signal resource of the old serving cell of the terminal, the terminal reports the CSI report of the first cell to the old serving cell; if the reference signal resource is the reference signal resource of the new serving cell, the terminal reports the CSI report of the first cell to the new serving cell.

[0298] In some embodiments, when the terminal sends the CSI report of the first cell to the network device of the first cell, the terminal can send the CSI report of the first cell to the network device on the first PUSCH in the process of connecting to the first cell. Optionally, the network device receives the CSI report of the first cell on the first PUSCH.

[0299] In some embodiments, the first PUSCH is one of the following PUSCHs:

[0300] If the terminal connects to the first cell using a 4-step random access procedure, the first PUSCH is a PUSCH including a message 3 (msg 3) in the 4-step random access procedure.

[0301] If the terminal connects to the first cell using a 2-step random access procedure, the first PUSCH is a PUSCH including a message A (msg A) in the 2-step random access procedure.

[0302] The communication method related to the embodiments of the present disclosure can include at least one of steps S2101-S2105. For example, step 2101 can be implemented as an independent embodiment, step 2102 can be implemented as an independent embodiment, step 2103 can be implemented as an independent embodiment, step 2101+S2102 can be implemented as an independent embodiment, but not limited thereto.

[0303] In the present embodiment or example, each step can be independent, arbitrarily combined or exchanged in order, the optional mode or optional example can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other examples.

[0304] In the above embodiment, in the case where the first cell is not a serving cell, the CSI measurement of the first cell can be performed based on the first reference signal resource of the first cell, that is, the CSI measurement of the first cell can be performed based on the first reference signal resource before the handover, so that the CSI report of the first cell can be obtained in time, and when the first cell becomes a new serving cell of the terminal, the network device can perform timely scheduling on the terminal according to the CSI report of the first cell, improve the efficiency and speed of data transmission, and improve the decoding success rate.

[0305] FIG. 2B is an interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 2B, the embodiment of the present disclosure relates to a communication method for a communication system 100, and the above method includes:

[0306] In step S2201, the network device sends first information to the terminal.

[0307] The optional implementation of step S2201 can refer to the optional implementation of step S2101 of FIG. 2A and other associated parts in the embodiments related to FIG. 2A, which will not be repeated here.

[0308] In step S2202, the terminal determines the first reference signal resource of the first cell according to the first information.

[0309] The optional implementation of step S2201 can refer to the optional implementation of step S2102 of FIG. 2A and other associated parts in the embodiments related to FIG. 2A, which will not be repeated here.

[0310] At step S2203, the network device sends the second information to the terminal.

[0311] In some embodiments, the second information can include CSI measurement configuration of one or more second cells.

[0312] In some embodiments, the second cell can be a candidate cell, a neighbor cell, or a target cell of the terminal.

[0313] In some embodiments, the second information is a Downlink Control Information (DCI), and the first codepoint is included in the DCI.

[0314] In some embodiments, after obtaining the first codepoint in the DCI, a first trigger state that has a mapping relationship with the first codepoint is determined from a first mapping relationship between codepoints and trigger states. Optionally, the first mapping relationship includes a mapping relationship between multiple codepoints and multiple trigger states. Optionally, the first mapping relationship between the codepoints and the trigger states can be based on a protocol. Optionally, the network device can configure and indicate the first mapping relationship between the codepoints and the trigger states through RRC signaling.

[0315] In some embodiments, a first CSI measurement configuration that has a mapping relationship with the first trigger state is determined from a second mapping relationship between trigger states and CSI measurement configurations, as the CSI measurement configuration corresponding to the at least one second cell. Optionally, the second mapping relationship includes a mapping relationship between multiple trigger states and multiple CSI measurement configurations. Optionally, the second mapping relationship between the trigger states and the CSI measurement configurations can be based on a protocol. Optionally, the network device can configure and indicate the second mapping relationship between the trigger states and the CSI measurement configurations through RRC signaling.

[0316] In some embodiments, a codepoint carried by a CSI request field in the DCI can be used to indicate a trigger state, and the trigger state indicated by the codepoint can correspond to one or more CSI report config IDs. Each CSI report config ID can correspond to one or more second cells.

[0317] In some embodiments, the number of trigger states contained in the trigger state list configured by the first information (RRC signaling) in step S2101 is N, and the number of bits of CSIrequest of the DCI is M. When N > (2^M-1), it means that the codepoint of CSIrequest of the DCI cannot indicate N trigger states, so MAC CE is needed to activate at most 2^M-1 trigger states in the list first, and then the codepoint of the DCI indicates one of the multiple trigger states activated by the MAC CE.

[0318] In some embodiments, the second information is a Medium Access Control Control Element (MAC CE), and the MAC CE includes the first indication field.

[0319] In some embodiments, one or more bits in the first indication field correspond to a CSI report configuration ID. Optionally, one bit can correspond to one CSI report configuration ID, that is, N bits correspond to N CSI reports. Optionally, N bits can correspond to M CSI report configuration IDs. For example, one bit can correspond to multiple CSI report configuration IDs, which can be an ID set. One bit indicates one CSI report configuration ID set. When the value of a certain bit is a first value, it means that one or more CSI report configuration IDs corresponding to the bit are activated. The one or more CSI report configuration IDs corresponding to the bit can be referred to as first CSI report configuration IDs. Optionally, the first value can be "1", or the first value can also be "0". After obtaining the first indication field in the MAC CE, the terminal can determine the first CSI report configuration ID corresponding to the bit with the first value, and based on the correspondence between the CSI report configuration ID and the CSI measurement configuration given by the RRC signaling, the first CSI measurement configuration corresponding to the one or more activated first CSI report configuration IDs is used as the CSI measurement configuration corresponding to the at least one second cell.

[0320] In a case that the bit in the first indication field corresponds to the CSI report configuration ID one by one, exemplary illustration, the CSI report configuration ID includes CSI report configuration ID1, CSI report configuration ID2, CSI report configuration ID3, CSI report configuration ID4 and CSI report configuration ID5. The CSI measurement configuration can include CSI measurement configuration A, CSI measurement configuration B, CSI measurement configuration C, CSI measurement configuration D and CSI measurement configuration E. The CSI report configuration ID1 to CSI report configuration ID5 correspond to the CSI measurement configuration A to CSI measurement configuration E respectively.

[0321] The first indication field can include 5 bit positions, and the 5 bit positions correspond to the CSI report configuration ID1 to CSI report configuration ID5 respectively. If the value of bit position 2 is “1”, it can be determined that the CSI report configuration ID2 can be activated, and then the CSI measurement configuration B corresponding to the CSI report configuration ID2 can be taken as the first CSI measurement configuration, that is, the CSI measurement configuration of the at least one second cell. It can be understood that the values of bit position 1 and bit position 2 on the first indication field are “1”, which can determine that the CSI report configuration ID1 and the CSI report configuration ID2 are activated, and then the CSI measurement configuration A corresponding to the CSI report configuration ID1 and the CSI measurement configuration B corresponding to the CSI report configuration ID2 can be taken as the first CSI measurement configuration, that is, the CSI measurement configuration of the at least one second cell.

[0322] In a case that the N bit positions in the first indication field correspond to the M CSI report configuration IDs, exemplary illustration, for example, the first indication field includes 3 bit positions, and optionally, the bit position 1 corresponds to the CSI report configuration ID1 and the CSI report configuration ID2; the bit position 2 corresponds to the CSI report configuration ID3 and the CSI report configuration ID4; and the bit position 3 corresponds to the CSI report configuration ID5. If the value of the bit position 1 is “1”, it can be determined that the CSI report configuration ID1 and the CSI report configuration ID2 are the first CSI report configuration ID, and the CSI measurement configuration A corresponding to the CSI report configuration ID1 and the CSI measurement configuration B corresponding to the CSI report configuration ID2 are determined as the first CSI measurement configuration, as the CSI measurement configuration of the at least one second cell.

[0323] In step S2204, the terminal determines the first cell from the plurality of second cells.

[0324] In some embodiments, the second information indicates the CSI measurement configuration corresponding to one second cell, and the terminal determines the second cell as the first cell.

[0325] In some embodiments, the second information indicates the CSI measurement configuration corresponding to a plurality of second cells, and the terminal can determine that the plurality of second cells are all the first cells.

[0326] In some embodiments, the second information indicates CSI measurement configuration corresponding to the plurality of second cells, and the terminal determines part of the plurality of second cells as the first cell.

[0327] In some embodiments, the beam quality of each of the plurality of second cells is determined, and the N second cells with the best beam quality are determined as the part of the second cells, i.e., as the first cell, where N is a natural number greater than or equal to 1. Alternatively, the beam quality of the plurality of second cells is ranked, and the N second cells ranked in the front are determined as the part of the second cells.

[0328] In some embodiments, the beam quality can include, but is not limited to, RSRP of the cell, RSRQ of the cell, SINR of the cell, etc.

[0329] In some embodiments, when the second cell corresponds to a plurality of beam qualities, the optimal beam quality is determined from the plurality of beam quality parameters as the beam quality of the second cell. For example, the plurality of beam qualities include RSRP, RSRQ and SINR of the second cell, and if the RSRP of the second cell is the optimal one among the RSRP, RSRQ and SINR of the second cell, the RSRP of the second cell is taken as the final beam quality of the second cell.

[0330] In some embodiments, the second cell with a beam quality greater than a first set threshold value in the plurality of second cells is determined as the part of the second cells.

[0331] In some embodiments, the beam quality of the serving cell of the terminal is determined, and the part of the second cells is determined from the plurality of second cells based on the beam quality of the serving cell and an offset. Alternatively, the sum of the beam quality of the serving cell and the offset is determined as a second set threshold value, and the second cell with a beam quality greater than the second set threshold value in the plurality of second cells is determined as the part of the second cells.

[0332] It can be understood that if the beam quality of the second cell is the RSRP of the cell, the sum value (second set threshold value) is obtained according to the RSRP of the serving cell and the offset. If the beam quality of the second cell is the RSRQ of the cell, the sum value (second set threshold value) is obtained according to the RSRQ of the serving cell and the offset. If the beam quality of the second cell is the SINR of the cell, the sum value (second set threshold value) is obtained according to the RSRQ of the serving cell and the offset. That is, the beam quality of the second cell and the beam quality of the serving cell are the same type of quality parameter.

[0333] In some embodiments, the network device indicates the part of the second cells based on the indication signaling. For example, the network device indicates the target cell in the indication signaling, and the target cell is the part of the second cells, i.e., the target cell is the first cell.

[0334] Optionally, the network device indicates the target cell based on the RRC signaling, such as the RRCreconfiguration or the handovercommand containing the identity of the target cell.

[0335] Optionally, the network device indicates the target cell based on the indication information of the TCIstate, where the cell corresponding to the TCIstate is the target cell, the TCIstate is one of the TCIstatelist of the target cell, or the reference signal resource indicated by the TCIstate is the reference signal resource of the target cell or the QCLsource of the reference signal resource indicated by the TCIstate is the reference signal resource of the target cell. For example, the network device indicates the indicatedTCIstate used by the terminal for communication through the MACCE and / or the DCI, and the terminal determines the target cell corresponding to the indicatedTCIstate as the part of the second cells.

[0336] In some embodiments, after determining the part of the second cells, the terminal can send the identity of the part of the second cells to the network device.

[0337] In some embodiments, the terminal can determine the position of the part of the second cells in the plurality of second cells, and send the position of the part of the second cells in the plurality of second cells to the network device as the identity of the part of the second cells.

[0338] In some embodiments, the terminal can determine the cell identity of the part of the second cells, and send the cell identity of the part of the second cells to the network device.

[0339] In some embodiments, after determining the part of the second cells, the terminal can send the identity of the part of the second cells to the network device at the same time of sending the CSI report of the part of the second cells. Alternatively, the terminal can send the identity of the part of the second cells to the network device in the CSI report corresponding to the second cell.

[0340] In step 2205, the terminal performs CSI measurement on the first cell based on the first reference signal resource.

[0341] The optional implementation of step S2205 can refer to the optional implementation of step S2104 in FIG. 2A and other related parts in the embodiments involved in FIG. 2A, which will not be repeated here.

[0342] At step 2206, the terminal sends a CSI report of the first cell to the network device, and the first cell is not a serving cell of the terminal.

[0343] In some embodiments, the first cell is not a serving cell of the terminal, that is, the first cell is currently a non-serving cell of the terminal. It can be understood that the first cell is not a serving cell of the terminal when the terminal determines the first reference signal resource of the first cell, and the first cell is not a serving cell of the terminal.

[0344] The optional implementation of step S2206 can refer to the optional implementation of step S2105 in FIG. 2A and other associated parts in the embodiments involved in FIG. 2A, which will not be described here.

[0345] In some embodiments, the first cell is determined by the terminal from a plurality of second cells, and the terminal can send the identity of the first cell to the network device at the same time of sending the CSI report of the first cell.

[0346] The communication method involved in the embodiments of the present disclosure can include at least one of steps 2201-2106. For example, step 2205 can be implemented as an independent embodiment, step 2206 can be implemented as an independent embodiment, and step 2205+S2206 can be implemented as an independent embodiment, but is not limited thereto.

[0347] In the present embodiment or embodiment, each step can be independent, arbitrarily combined or exchanged in order, the optional mode or optional example can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other embodiments.

[0348] In the above embodiments, a cell with good quality can be determined as the first cell from a plurality of second cells, so as to ensure that the terminal can switch to the cell with good quality, so as to improve the efficiency and speed of data transmission, and improve the decoding success rate.

[0349] FIG. 2C is an interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 2C, the present embodiment of the present disclosure relates to a communication method for a communication system 100, and the above method includes:

[0350] At step S2301, the network device sends second information to the terminal.

[0351] In some embodiments, the second information can be a CSI measurement configuration of at least one or more second cells.

[0352] In some embodiments, the second information can configure a CSI-RS of the second cell in the CSI measurement configuration of the second cell.

[0353] In some embodiments, the second cell can be a candidate cell, a target cell, a neighbor cell of the terminal.

[0354] In some embodiments, the second information is DCI, and the first code point is included in the DCI.

[0355] For the process of determining the CSI measurement configuration of the one or more second cells based on the first code point carried in the DCI, refer to the optional implementation of step S2203 in FIG. 2B and other associated parts in the embodiments involved in FIG. 2B, which will not be repeated here.

[0356] In some embodiments, the second information is a MAC CE, and the first indication field is included in the MAC CE.

[0357] For the process of determining the CSI measurement configuration of the one or more second cells based on the first indication field carried in the MAC CE, refer to the optional implementation of step S2203 in FIG. 2B and other associated parts in the embodiments involved in FIG. 2B, which will not be repeated here.

[0358] In step S2302, the terminal determines the first cell from the plurality of second cells.

[0359] The optional implementation of step S2302 can refer to the optional implementation of step S2204 in FIG. 2B and other associated parts in the embodiments involved in FIG. 2B, which will not be repeated here.

[0360] In step S2303, the terminal determines the first reference signal resource of the first cell according to the second information.

[0361] In some embodiments, after the terminal determines the first cell from the plurality of second cells, the terminal can determine the CSI measurement configuration corresponding to the first cell according to the second information, and determine the first reference signal resource of the first cell from the CSI measurement configuration corresponding to the first cell.

[0362] For example, the plurality of second cells include cell 1, cell 2, cell 3 and cell 4, and the terminal can determine cell 2 and cell 3 as the first cell from the cell 1 to the cell 4. Accordingly, the terminal can determine the CSI measurement configuration corresponding to the cell 2 and the cell 3 from the second information. Since the CSI measurement configuration includes the CSI-RS corresponding to the cell, the terminal can determine the first reference signal resource of the cell 2 from the CSI measurement configuration corresponding to the cell 2. The terminal can determine the first reference signal resource of the cell 3 from the CSI measurement configuration corresponding to the cell 3.

[0363] In step S2304, the terminal performs CSI measurement on the first cell based on the first reference signal resource.

[0364] The optional implementation of step S2304 can refer to the optional implementation of step S2104 in FIG. 2A and other associated parts in the embodiments related to FIG. 2A, which will not be repeated here.

[0365] In step S2305, the terminal sends a CSI report of the first cell to the network device, and the first cell is not a serving cell of the terminal.

[0366] In some embodiments, the first cell is not a serving cell of the terminal, that is, the first cell is currently a non-serving cell of the terminal. It can be understood that the first cell is not a serving cell of the terminal, that is, when the terminal determines the first reference signal resource of the first cell, the first cell is not a serving cell of the terminal.

[0367] The optional implementation of step S2305 can refer to the optional implementation of step S2105 in FIG. 2A and other associated parts in the embodiments related to FIG. 2A, which will not be repeated here.

[0368] The communication method related to the embodiments of the present disclosure can include at least one of steps S2301-S2305. For example, step 2304 can be implemented as an independent embodiment, and steps S2304+S2305 can be implemented as an independent embodiment, but are not limited thereto.

[0369] In the present embodiment or example, each step can be independent, arbitrarily combined or exchanged in order, the optional mode or optional example can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other examples.

[0370] FIG. 3A is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 3A, the embodiments of the present disclosure relate to a communication method for a terminal, and the above method comprises:

[0371] In step S3101, first information is received.

[0372] In step S3102, a first reference signal resource of a first cell is determined according to the first information.

[0373] In step S3103, second information is received.

[0374] In step S3104, a CSI measurement configuration of the first cell is determined according to the second information.

[0375] In step S3105, the first cell is measured based on the first reference signal resource and the CSI measurement configuration.

[0376] In step S3106, a CSI report of the first cell is sent, and the first cell is not a serving cell of the terminal.

[0377] The detailed description of steps S3101-S3106 can refer to the above embodiment description.

[0378] The communication method related to the embodiments of the present disclosure can include at least one of steps S3101-S3106. For example, step S3105 can be implemented as an independent embodiment, and steps S3105+S3106 can be implemented as an independent embodiment, but are not limited thereto.

[0379] In the present embodiment or example, each step can be independent, arbitrarily combined or exchanged in order, the optional mode or optional example can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other examples.

[0380] FIG. 3B is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 3B, the embodiments of the present disclosure relate to a communication method for a terminal, and the above method comprises:

[0381] Step S3201, receiving first information.

[0382] Step S3202, determining a first reference signal resource of a first cell according to the first information.

[0383] Step S3203, receiving second information.

[0384] Step S3204, determining the first cell from a plurality of second cells according to the second information.

[0385] Step S3205, performing CSI measurement on the first cell based on the first reference signal resource.

[0386] Step S3206, transmitting a CSI report of the first cell, the first cell being not a serving cell of the terminal.

[0387] The detailed description of steps S3201-S3206 can refer to the above embodiment description.

[0388] The communication method related to the embodiments of the present disclosure can include at least one of steps S3201-S3206. For example, step S3205 can be implemented as an independent embodiment, and steps S3205+S3206 can be implemented as an independent embodiment, but are not limited thereto.

[0389] In the present embodiment or example, each step can be independent, arbitrarily combined or exchanged in order, the optional mode or optional example can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other examples.

[0390] FIG. 3C is a flow diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in FIG. 3C, the embodiment of the present disclosure relates to a communication method for a terminal, and the method comprises the following steps.

[0391] Step S3301: receiving second information.

[0392] Step S3302: determining a first cell from the plurality of second cells.

[0393] Step S3303: determining a first reference signal resource of the first cell.

[0394] Step S3304: performing CSI measurement on the first cell based on the first reference signal resource.

[0395] Step S3305: transmitting a CSI report of the first cell, the first cell being not a serving cell of the terminal.

[0396] Details of steps S3301-S3305 can be referred to the descriptions of the above embodiments.

[0397] The communication method according to the embodiment of the present disclosure can comprise at least one of steps S3301-S3305. For example, step S3304 can be implemented as an independent embodiment, and steps S3304 and S3305 can be implemented as an independent embodiment, but are not limited thereto.

[0398] In the present embodiment or the present example, each step can be independently combined or exchanged in order, and optional modes or optional examples can be combined with any step of other embodiments or other examples.

[0399] FIG. 3D is a flow diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in FIG. 3D, the embodiment of the present disclosure relates to a communication method for a terminal, and the method comprises the following steps.

[0400] Step S3401: determining a first reference signal resource of a first cell, the first cell being not a serving cell of the terminal.

[0401] Step S3402: performing CSI measurement on the first cell based on the first reference signal resource.

[0402] Step S3403: transmitting a CSI report of the first cell to a network device.

[0403] Details of steps S3401-S3405 can be referred to the descriptions of the above embodiments.

[0404] The communication method related to the embodiments of the present disclosure can include at least one of steps S3401-S3403. For example, steps S3402+S3403 can be implemented as independent embodiments, but are not limited thereto.

[0405] In the present embodiment or example, each step can be independent, arbitrarily combined or exchanged in order, the optional mode or optional example can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other examples.

[0406] FIG. 3E is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 3E, the embodiments of the present disclosure relate to a communication method for a terminal, and the above method comprises:

[0407] Step S3401, performing CSI measurement on a first cell based on a first reference signal resource of the first cell, wherein the first cell is not a serving cell of the terminal.

[0408] Step S3402, sending a CSI report of the first cell to a network device.

[0409] Optionally, at least one of the first information and the second information sent by the network device is received.

[0410] According to at least one of the first information and the second information, the first reference signal resource is determined.

[0411] Optionally, the first information is one of the following information:

[0412] The report configuration information of the CSI;

[0413] The report configuration information of L1 / L2 triggered mobility LTM-CSI.

[0414] Optionally, the first reference signal resource is one of the following reference signal resources:

[0415] The first reference signal resource is a reference signal resource corresponding to the first cell;

[0416] The first reference signal resource is a reference signal resource having a QCL relationship with the reference signal resource of the first cell.

[0417] Optionally, the CSI includes at least one of the following information: PMI, RI, CQI, LI, CRI.

[0418] Optionally, the second information is used to indicate the CSI measurement configuration corresponding to at least one second cell;

[0419] Based on the second information, the first cell is determined from the second cell.

[0420] Optionally, the second information is a downlink control information (DCI), and the first codepoint is included in the DCI.

[0421] A first trigger state that has a mapping relationship with the first codepoint is determined from a first mapping relationship between codepoints and trigger states.

[0422] A first CSI measurement configuration that has a mapping relationship with the first trigger state is determined from a second mapping relationship between trigger states and CSI measurement configurations, as the CSI measurement configuration corresponding to the at least one second cell.

[0423] Optionally, the second information is a medium access control control element (MAC CE), and the first indication field is included in the MAC CE.

[0424] One or more bits in the first indication field correspond to a CSI report configuration ID, a first CSI report configuration ID corresponding to bits whose values are a first value is determined, and a first CSI measurement configuration corresponding to the first CSI report configuration ID is determined as the CSI measurement configuration corresponding to the at least one second cell.

[0425] Optionally, the second information indicates a CSI measurement configuration corresponding to one second cell, and the second cell is determined to be the first cell.

[0426] Optionally, the second information indicates CSI measurement configurations corresponding to multiple second cells, and the multiple second cells are all determined to be the first cell, or part of the multiple second cells are determined to be the first cell.

[0427] Optionally, beam qualities of the multiple second cells are determined, and N second cells with the best beam qualities are determined as the part of the second cells, where N is a natural number greater than or equal to 1.

[0428] Optionally, the second cell corresponds to multiple beam qualities, and an optimal beam quality is determined from the multiple beam qualities as the beam quality of the second cell.

[0429] Optionally, a second cell with a beam quality greater than a first set threshold value in the multiple second cells is determined as the part of the second cells.

[0430] Optionally, a beam quality of a serving cell of the terminal is determined.

[0431] A second cell with a beam quality greater than a sum of the beam quality of the serving cell and an offset in the multiple second cells is determined as the part of the second cells.

[0432] Optionally, the network device corresponding to the first cell is sent the CSI report of the first cell.

[0433] Optionally, the network device corresponding to the serving cell is sent the CSI report of the first cell; or,

[0434] The network device corresponding to the first cell is sent the CSI report of the first cell.

[0435] The serving cell is the cell sending the first information and the second information.

[0436] Optionally, the CSI report of the first cell is sent in a first PUSCH during the process of the terminal connecting to the first cell.

[0437] Optionally, the first PUSCH is one of the following PUSCHs:

[0438] A PUSCH including a message 3 in a 4-step random access process;

[0439] A PUSCH including a message A in a 2-step random access process.

[0440] Optionally, the first cell is one of a candidate cell, a neighbor cell, or a target cell of the terminal.

[0441] FIG. 4A is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 4A, the embodiment of the present disclosure relates to a communication method for a network device, and the above method comprises:

[0442] Step S4101, sending first information to a terminal.

[0443] Step S4102, sending second information to the terminal.

[0444] Step S4103, receiving a CSI report of a first cell, the first cell being a non-serving cell of the terminal.

[0445] For details of steps S4101-S4103, refer to the above embodiment description.

[0446] The communication method according to the embodiment of the present disclosure can comprise at least one of steps S4101-S4103. For example, step S4103 can be implemented as an independent embodiment, and steps S4101+S4104 can be implemented as an independent embodiment, but are not limited thereto.

[0447] In the present embodiment or example, each step can be independently, arbitrarily combined or exchanged in order, and optional modes or optional examples can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other examples.

[0448] FIG. 4B is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 4B, the embodiments of the present disclosure relate to a communication method, for a network device, the method comprising:

[0449] In step S4201, the second information is sent to the terminal.

[0450] In step S4202, the CSI report of the first cell is received, the first cell being not a serving cell of the terminal.

[0451] Details of steps S4201-S4202 can be referred to the above embodiment description.

[0452] FIG. 4C is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 4C, the embodiments of the present disclosure relate to a communication method, for a network device, the method comprising:

[0453] In step S4301, at least one of the first information and the second information is sent to the terminal.

[0454] In some embodiments, at least one of the first information and the second information is used to determine a first reference signal resource of the first cell, the first reference signal resource being used for CSI measurement on the first cell.

[0455] In step S4302, the CSI report of the first cell is received, the first cell being not a serving cell of the terminal.

[0456] Optionally, the first reference signal resource is one of the following reference signal resources:

[0457] The first reference signal resource is a reference signal resource corresponding to the first cell;

[0458] The first reference signal resource is a reference signal resource having a quasi co-location (QCL) relationship with a reference signal resource of the first cell.

[0459] Optionally, the first information is one of the following information:

[0460] Report configuration information of CSI;

[0461] Report configuration information of L1 / L2 triggered mobility (LTM)-CSI.

[0462] Optionally, the CSI report of the first cell comprises at least one of the following information: PMI, RI, CQI, LI, CRI.

[0463] Optionally, the second information is sent to the terminal, wherein the second information is used to indicate the CSI measurement configuration corresponding to one or more second cells, and the first cell is one of the second cells.

[0464] Optionally, the second information is DCI, and the DCI is sent to the terminal, wherein the DCI includes a first code point, the first code point is used to determine a first trigger state from a first mapping relationship between the code point and the trigger state, and the first trigger state is used to determine the CSI measurement configuration of the second cell.

[0465] Optionally, the second information is a medium access control control element (MAC CE), and the MAC CE is sent to the terminal, wherein the MAC CE includes a first indication field.

[0466] One or more bits in the first indication field correspond to a CSI report configuration ID, and a bit with a first value in the bits is used to determine a first CSI measurement configuration corresponding to a corresponding first CSI report configuration ID, and the first CSI measurement configuration is used to determine the CSI measurement configuration corresponding to the at least one second cell.

[0467] Optionally, the second information indicates the CSI measurement configuration corresponding to one second cell, and the second cell is the first cell.

[0468] Optionally, the second information indicates the CSI measurement configuration corresponding to a plurality of second cells, and the plurality of second cells are all the first cell, or part of the plurality of second cells are the first cell.

[0469] Optionally, the part of the cells are N second cells with the best beam quality in the plurality of second cells, and the N is a natural number greater than or equal to 1.

[0470] Optionally, the second cell corresponds to a plurality of beam qualities, and a best beam quality in the plurality of beam qualities is the beam quality of the second cell.

[0471] Optionally, the second cell with a beam quality greater than a first set threshold value in the plurality of second cells is the part of the second cells.

[0472] Optionally, the second cell with a beam quality greater than the sum of the beam quality of the serving cell and an offset in the plurality of second cells is the part of the second cells.

[0473] Optionally, the terminal sends an identifier of the part of the second cells.

[0474] Optionally, the network device comprises at least one of a network device corresponding to a serving cell of the terminal and a network device corresponding to the first cell, wherein the serving cell is a cell sending at least one of the first information and the second information.

[0475] Optionally, the CSI report of the first cell is received on a first PUSCH in a process in which the terminal connects to the first cell.

[0476] Optionally, the first PUSCH is one of the following PUSCHs:

[0477] a PUSCH comprising a message 3 in a 4-step random access procedure;

[0478] a PUSCH comprising a message A in a 2-step random access procedure.

[0479] Optionally, the first cell is one of a candidate cell, a neighbor cell or a target cell of the terminal.

[0480] FIG. 5 is an interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 5, the embodiment of the present disclosure relates to a communication method for a communication system comprising a terminal, a network device, and the above-mentioned method comprises at least one of the following:

[0481] In step S5101, the network device sends at least one of the first information and the second information to the terminal.

[0482] In step S5102, the terminal receives at least one of the first information and the second information, and determines a first reference signal resource of the first cell according to at least one of the first information and the second information.

[0483] In step S5103, the terminal performs CSI measurement on the first cell according to the first reference signal resource, and the first cell is not a serving cell of the terminal.

[0484] In step S5104, the terminal sends a CSI report of the first cell to the network device.

[0485] In step S5105, the network device receives the CSI report of the first cell.

[0486] The optional implementation of steps S5101-S5105 can be referred to the above-mentioned embodiment.

[0487] In some embodiments, the above-mentioned method can comprise the method described in the above-mentioned embodiments of the communication system side, the terminal side, the network device side, etc., which will not be described here.

[0488] The communication method related to the embodiments of the present disclosure can include at least one of steps S5101-S5105. For example, step S5103 can be implemented as an independent embodiment, and steps S5104+S5104 can be implemented as an independent embodiment, but are not limited thereto.

[0489] In the present embodiment or example, each step can be independently combined or exchanged in order, and optional modes or examples can be combined with any step of other embodiments or examples.

[0490] The following is an exemplary introduction to the above method.

[0491] The present disclosure provides a communication method.

[0492] In some embodiments, the terminal determines a first reference signal resource for CSI measurement, wherein the first reference signal resource is a reference signal resource corresponding to a first cell, or a reference signal resource having a QCL relationship with the reference signal resource of the first cell, and the first cell is not a serving cell of the terminal.

[0493] In some embodiments, the first cell can be referred to as a candidate cell, a neighbor cell, a target cell, etc.

[0494] In some embodiments, when the terminal determines the first reference signal resource, the first cell is not a serving cell of the terminal. However, it is possible that the first cell is the cell to which the terminal will switch next, and after switching, the first cell becomes the serving cell of the terminal.

[0495] In some embodiments, the terminal determines the first reference signal resource, and the first reference signal resource configuration information can be included in the CSI-reportconfig (i.e., configured based on the CSI framework), and the first reference signal resource configuration information is included in the LTM-CSI-reportconfig.

[0496] In some embodiments, the CSI report (reportquantity) of the first cell includes at least one of:

[0497] PMI, RI, CQI, LI, CRI.

[0498] In some embodiments, the network device configures the CSI measurement configuration.

[0499] In some embodiments, the network device triggers the CSI measurement configuration based on the DCI, the codepoint of the DCI has a mapping relationship with different trigger states, and the mapping relationship is determined based on the MAC CE.

[0500] In some embodiments, the CSI measurement configuration includes one or more CSI measurements corresponding to a first cell, the terminal determines at least one first cell as a second cell, measures and reports the CSI corresponding to the second cell.

[0501] In some embodiments, the first type of CSI measurement includes one CSI measurement corresponding to a first cell, and the terminal directly measures the CSI of the first cell and reports the CSI report of the first cell.

[0502] In some embodiments, the second type of CSI measurement includes multiple CSI measurements corresponding to multiple first cells, and the terminal directly determines all the first cells as the second cell.

[0503] In some embodiments, the third type of CSI measurement includes multiple CSI measurements corresponding to multiple first cells, and the terminal determines part of the first cells as the second cell, and indicates the identity corresponding to the second cell, such as the position of the second cell in the multiple first cells.

[0504] In some embodiments, if the beam quality of the first cell is the best N of the multiple first cells, N can be 1 or greater than 1.

[0505] It should be noted that the beam quality refers to the L1-RSRP or L1-SINR corresponding to the reference signal resource, and the reference signal resource here is different from the reference signal resource used for CSI measurement

[0506] In some embodiments, if a cell corresponds to multiple beam qualities, here it can be the best beam quality.

[0507] In some embodiments, the beam quality of the first cell is higher than a certain threshold.

[0508] In some embodiments, the beam quality of the first cell is higher than the beam quality of the serving cell plus an offset value.

[0509] In some embodiments, the terminal reports the CSI report of the first cell.

[0510] In some embodiments, the terminal reports the CSI report of the first cell to the old serving cell, i.e., before the handover.

[0511] In some embodiments, the terminal reports the CSI report of the first cell to the new serving cell (the first cell), i.e., after the handover.

[0512] In some embodiments, the first PUSCH is reported in the reestablishing to the target cell process. The PUSCH includes a PUSCH of a Msg 3 (third step signaling of a 4-step random access process) or a PUSCH in a Msg A (first step signaling of a 2-step random access process).

[0513] In some embodiments, if the reference signal resource corresponding to the QCL source of the DMRS of the PUSCH on which the terminal reports the CSI report of the first cell is of the old serving cell, the CSI report is reported to the old serving cell; if the reference signal resource is of the new serving cell, the CSI report is reported to the new serving cell.

[0514] In the present embodiment or example, each step can be independent, arbitrarily combined or exchanged in order, the optional mode or optional example can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other examples.

[0515] The embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device including units or modules for implementing each step performed by the terminal in any of the above methods. For another example, another device is also proposed, including units or modules for implementing each step performed by the network equipment (such as access network equipment, core network function node, core network equipment, etc.) in any of the above methods.

[0516] It should be understood that the division of each unit or module in the above apparatus is only a logical function division, and all or part of them can be integrated into a physical entity or physically separated in actual implementation. In addition, the units or modules in the apparatus can be implemented in the form of processor calling software: for example, the apparatus includes a processor, the processor is connected with a memory, the memory stores instructions, and the processor calls the instructions stored in the memory to realize any of the above methods or realize the functions of each unit or module of the above apparatus, wherein the processor is a general processor such as a central processing unit (CPU) or a microprocessor, and the memory is a memory in the apparatus or a memory outside the apparatus. Alternatively, the units or modules in the apparatus can be implemented in the form of hardware circuit, and the functions of part or all of the units or modules can be realized by the design of hardware circuit. The above hardware circuit can be understood as one or more processors; for example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of part or all of the units or modules are realized by the design of the logical relationship of elements in the circuit; for another example, in another implementation, the above hardware circuit is a programmable logic device (PLD), and a field programmable gate array (FPGA) is taken as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of part or all of the above units or modules. All units or modules of the above apparatus can be all implemented in the form of processor calling software, or all implemented in the form of hardware circuit, or part implemented in the form of processor calling software and the remaining part implemented in the form of hardware circuit.

[0517] In the embodiments of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), or the like. In another implementation, the processor can implement certain functions through a logical relationship of hardware circuits, and the logical relationship of the hardware circuits is fixed or can be reconfigured. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads a configuration document to implement the configuration of the hardware circuit. It can be understood that the processor loads instructions to implement the functions of the above part or all units or modules. In addition, the hardware circuit can also be designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), or the like.

[0518] FIG. 6A is a structural schematic diagram of a terminal according to an embodiment of the present disclosure. As shown in FIG. 6A, the terminal includes at least one of a transceiver module and a processing module.

[0519] The processing module is configured to perform channel state information (CSI) measurement on a first cell based on a first reference signal resource of the first cell, the first cell being a non-serving cell of the terminal.

[0520] The transceiver module is configured to send a CSI report of the first cell to a network device.

[0521] Optionally, the processing module is configured to perform steps related to “processing” performed by the terminal in any of the above methods, and the transceiver module is configured to perform steps related to “transceiving” performed by the terminal in any of the above methods.

[0522] FIG. 6B is a structural schematic diagram of a network device according to an embodiment of the present disclosure. As shown in FIG. 6B, the network device includes at least one of a transceiver module and a processing module.

[0523] The transceiver module is configured to transmit at least one of the first information and the second information to the terminal, the at least one of the first information and the second information being used to determine a first reference signal resource of the first cell, the first reference signal resource being used for CSI measurement on the first cell; the first cell is not a serving cell of the terminal; and receive a CSI report of the first cell transmitted by the terminal.

[0524] Optionally, the transceiver module is configured to perform the steps related to "transceiving" performed by the network device in any of the above methods. Optionally, the network device described above can further include a processing module configured to perform the steps related to "processing" performed by the network device in any of the above methods.

[0525] FIG. 7A is a structural schematic diagram of a communication device 7100 according to the embodiments of the present disclosure. The communication device 7100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor supporting the network device to implement any of the above methods, or a chip, a chip system, or a processor supporting the terminal to implement any of the above methods. The communication device 7100 can be used to implement the methods described in the above method embodiments, which can be referred to the descriptions in the above method embodiments.

[0526] As shown in FIG. 7A, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general processor or a special-purpose processor, for example, a baseband processor or a central processing unit. The baseband processor can be configured to process communication protocols and communication data, and the central processing unit can be configured to control the communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process data of the programs. The processor 7101 is configured to invoke instructions to enable the communication device 7100 to perform any of the above methods.

[0527] In some embodiments, the communication device 7100 further includes one or more memories 7102 configured to store instructions. Optionally, all or part of the memory 7102 can also be located outside the communication device 7100.

[0528] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the communication steps such as transmitting and receiving in the above methods are performed by the transceiver 7103, and the other steps are performed by the processor 7101.

[0529] In some embodiments, the transceiver can include a receiver and a transmitter, which can be separate or integrated together. Optionally, the terms transceiver, transceiving unit, transceiver, transceiving circuit, etc. can be replaced by each other, the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc. can be replaced by each other, and the terms receiver, receiving unit, sensing signal receiving end, receiving circuit, etc. can be replaced by each other.

[0530] Optionally, the communication device 7100 further includes one or more interface circuits 7104 connected with the memory 7102, which can be used to receive signals from the memory 7102 or other devices, and can be used to send signals to the memory 7102 or other devices. For example, the interface circuit 7104 can read the instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0531] The communication device 7100 described in the above embodiments can be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited to this, and the structure of the communication device 7100 can not be limited by Figure 7a. The communication device can be a standalone device or can be part of a larger device. For example, the communication device can be: 1) a standalone integrated circuit (IC), or a chip, or a chip system or subsystem; (2) a set of one or more ICs, which can optionally include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a sensing signal receiving end, a terminal device, a smart terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) other devices, etc.

[0532] Figure 7B is a structural schematic diagram of a chip 7200 according to an embodiment of the present disclosure. For the case where the communication device 7100 is a chip or a chip system, the structural schematic diagram of the chip 7200 shown in Figure 7B can be referred to, but is not limited thereto.

[0533] The chip 7200 includes one or more processors 7201 for invoking instructions to cause the chip 7200 to perform any of the above methods.

[0534] In some embodiments, chip 7200 further includes one or more interface circuits 7202 that are connected to memory 7203, which can be used to receive signals from or send signals to memory 7203 or other devices. For example, interface circuit 7202 can read instructions stored in memory 7203 and send the instructions to processor 7201. Alternatively, the terms interface circuit, interface, transceiver pin, transceiver, etc. can be replaced by each other.

[0535] In some embodiments, chip 7200 further includes one or more memories 7203 for storing instructions. Alternatively, all or part of memory 7203 can be outside of chip 7200.

[0536] The disclosure also proposes a storage medium, which has instructions stored thereon, and when the instructions are run on communication device 7100, communication device 7100 performs any of the above methods. Alternatively, the storage medium is an electronic storage medium. Alternatively, the storage medium is a computer readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices. Alternatively, the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a transitory storage medium.

[0537] The disclosure also proposes a program product, which is executed by communication device 7100, so that communication device 7100 performs any of the above methods. Alternatively, the program product is a computer program product.

[0538] The disclosure also proposes a computer program, which, when run on a computer, causes the computer to perform any of the above methods.

[0539] In the embodiments described above, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs. When the computer programs are loaded on a computer and executed, all or part of the processes or functions described in the embodiments of the present disclosure are produced. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer programs can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer programs can be transferred from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The computer readable storage medium can be any available medium accessible by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available media can be magnetic media (such as floppy disk, hard disk, magnetic tape), optical media (such as high-density digital video disc (digital video disc, DVD)), or semiconductor media (such as solid state disk (solid state disk, SSD)) and the like.

[0540] Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether the functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. A skilled person can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present disclosure.

[0541] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the foregoing method embodiments, which will not be described here.

[0542] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A communication method characterized by comprising: The method comprises: performing, by a terminal, channel state information (CSI) measurement on a first cell based on a first reference signal resource of the first cell, the first cell being a non-serving cell of the terminal; sending, by the terminal, a CSI report of the first cell to a network device.

2. The method of claim 1, wherein, The method further comprises: receiving, by the network device, at least one of first information and second information; determining, by the network device, the first reference signal resource according to the at least one of the first information and the second information.

3. The method according to claim 1 or 2, characterized in that, The first information is at least one of the following information: report configuration information of the CSI; report configuration information of L1 / L2 triggered mobility (LTM)-CSI.

4. The method according to any one of claims 1-3, characterized in that, The first reference signal resource is at least one of the following reference signal resources: The first reference signal resource is a reference signal resource corresponding to the first cell; The first reference signal resource is a reference signal resource having a quasi co-location (QCL) relationship with a reference signal resource of the first cell.

5. The method according to any one of claims 1-4, characterized in that, The CSI report of the first cell comprises at least one of the following information: a precoding matrix indicator (PMI); a rank indicator (RI); a channel quality indicator (CQI); a layer indicator (LI); a channel state information reference signal resource indicator (CRI).

6. The method according to any one of claims 2-4, characterized in that, The second information is used to indicate a CSI measurement configuration corresponding to at least one second cell; determining, by the network device, the first cell from the second cell based on the second information.

7. The method of claim 6, wherein, The method further comprises: The second information is a downlink control information (DCI), and the DCI comprises a first codepoint; determining, by the network device, a first trigger state having a mapping relationship with the first codepoint from a first mapping relationship between codepoints and trigger states; determining, by the network device, a first CSI measurement configuration having a mapping relationship with the first trigger state from a second mapping relationship between trigger states and CSI measurement configurations, as the CSI measurement configuration corresponding to the at least one second cell.

8. The method of claim 6, wherein, The method further comprises: The second information is a medium access control control element (MAC CE), and the MAC CE comprises a first indication field; one or more bits in the first indication field correspond to a CSI report configuration identifier (ID), a bit having a first value corresponds to a first CSI report configuration ID, and a first CSI measurement configuration corresponding to the first CSI report configuration ID is determined as the CSI measurement configuration corresponding to the at least one second cell.

9. The method of claim 6, wherein, The method further comprises: The second information indicates a CSI measurement configuration corresponding to one second cell, and the second cell is determined as the first cell; or The second information indicates CSI measurement configurations corresponding to multiple second cells, and the multiple second cells are all determined as the first cell; or, part of the multiple second cells are determined as the first cell.

10. The method of claim 9, wherein, The determination of the part of the multiple second cells as the first cell comprises: determining beam qualities of the multiple second cells, and determining N second cells having the best beam qualities as the part of the second cells, N being a natural number greater than or equal to 1; or, determining a second cell with a beam quality greater than a first set threshold value in the plurality of second cells as the partial second cell; or determining a beam quality of a serving cell of the terminal, and determining a second cell with a beam quality greater than a sum of the beam quality of the serving cell and an offset in the plurality of second cells as the partial second cell.

11. The method of claim 10, wherein, The method further comprises: The second cell corresponds to a plurality of beam qualities, and a best beam quality is determined from the plurality of beam qualities as the beam quality of the second cell.

12. The method according to any one of claims 9-11, characterized in that, The method further comprises: sending an identifier of the partial second cell to the network device.

13. The method according to any one of claims 2-12, characterized in that, The method further comprises: sending a CSI report of the first cell to a network device corresponding to the serving cell of the terminal; or sending a CSI report of the first cell to a network device corresponding to the first cell. The serving cell is a cell that sends at least one of the first information and the second information.

14. The method of claim 13, wherein, The method further comprises: sending the CSI report of the first cell to the network device corresponding to the first cell on a first physical uplink shared channel (PUSCH) in a process in which the terminal connects to the first cell.

15. [Amended according to Rule 91 11.10.2024] The method according to claim 14, characterized in that, The first PUSCH is one of the following PUSCHs: a PUSCH including a message 3 in a 4-step random access process; a PUSCH including a message A in a 2-step random access process.

16. The method of any one of claims 1-15, wherein, The first cell is one of a candidate cell, a neighbor cell, or a target cell of the terminal.

17. A method of communication, comprising: The method is performed by a network device, and comprises: sending at least one of first information and second information to a terminal, the at least one of the first information and the second information being used to determine a first reference signal resource of a first cell, the first reference signal resource being used for CSI measurement on the first cell, the first cell not being a serving cell of the terminal; receiving a CSI report of the first cell sent by the terminal.

18. The method of claim 17, wherein, The first reference signal resource is one of the following reference signal resources: The first reference signal resource is a reference signal resource corresponding to the first cell; The first reference signal resource is a reference signal resource having a quasi-co-location (QCL) relationship with a reference signal resource of the first cell.

19. The method of claim 17 or 18, wherein, The first information is one of the following information: report configuration information of CSI; report configuration information of L1 / L2 triggered mobility (LTM)-CSI.

20. The method of any one of claims 17-19, wherein, The CSI report of the first cell includes at least one of the following information: PMI, RI, CQI, LI, and CRI.

21. The method according to any one of claims 17-20, characterized by, The method further comprises: sending second information to the terminal, the second information being used to indicate a CSI measurement configuration corresponding to at least one second cell, the first cell being one of the second cells.

22. The method of claim 21, wherein, The method further comprises: The second information is DCI, the DCI is sent to the terminal, the DCI includes a first code point, the first code point is used to determine a first trigger state from a first mapping relationship between the code point and the trigger state, and the first trigger state is used to determine a CSI measurement configuration of the second cell.

23. The method of claim 21, wherein, The method further includes: The second information is a medium access control control element (MAC CE), and the MAC CE is sent to the terminal, wherein the MAC CE includes a first indication field; One or more bits in the first indication field correspond to a CSI report configuration ID, and a bit with a first value in the bits is used to determine a first CSI measurement configuration corresponding to a corresponding first CSI report configuration ID, and the first CSI measurement configuration is used to determine a CSI measurement configuration corresponding to the at least one second cell.

24. The method of claim 21, wherein, The second information indicates a CSI measurement configuration corresponding to one second cell, and the second cell is the first cell; or The second information indicates CSI measurement configurations corresponding to a plurality of second cells, and the plurality of second cells are all the first cell; or part of the second cells in the plurality of second cells are the first cell.

25. The method of claim 24, wherein, The part of the second cells are N second cells with the strongest beam quality in the plurality of second cells, and N is a natural number greater than or equal to 1; or The part of the second cells are second cells with beam quality greater than a first set threshold value in the plurality of second cells; or The part of the second cells are second cells with beam quality greater than a sum of beam quality of the serving cell and an offset in the plurality of second cells.

26. The method of claim 25, wherein, The second cell corresponds to a plurality of beam qualities, and an optimal beam quality in the plurality of beam qualities is the beam quality of the second cell.

27. The method of any one of claims 24-26, wherein, The method further includes: Receiving an identifier of the part of the second cells sent by the terminal.

28. The method of any one of claims 17-27, wherein, The network device includes at least one of a network device corresponding to a serving cell of the terminal and a network device corresponding to the first cell, wherein the serving cell is a cell sending at least one of the first information and the second information.

29. The method of claim 28, wherein, The method further includes: Receiving a CSI report of the first cell on a first PUSCH in a process in which the terminal connects to the first cell.

30. The method of claim 29, wherein, The first PUSCH is one of the following PUSCHs: A PUSCH including a message 3 in a 4-step random access process; A PUSCH including a message A in a 2-step random access process.

31. The method of any one of claims 17-31, wherein, The first cell is one of a candidate cell, a neighbor cell, or a target cell of the terminal.

32. A communication method for a communication system including a terminal and a network device, the method comprising: The network device sends at least one of first information and second information to the terminal; The terminal receives at least one of the first information and the second information, and determines a first reference signal resource of a first cell according to at least one of the first information and the second information, wherein the first cell is not a serving cell of the terminal; The terminal performs CSI measurement on the first cell according to the first reference signal resource; and The terminal sends a CSI report of the first cell to the network device. The terminal sends a CSI report of the first cell to the network device. The network device receives the CSI report of the first cell.

33. A terminal, characterized by Comprising: A processing module, configured to perform channel state information (CSI) measurement on a first cell based on a first reference signal resource of the first cell, the first cell being a non-serving cell of a terminal; A transceiver module, configured to send a CSI report of the first cell to a network device.

34. A network device, comprising: Comprising: A transceiver module, configured to send at least one of first information and second information to a terminal, the at least one of the first information and the second information being used to determine a first reference signal resource of a first cell, the first reference signal resource being used for CSI measurement on the first cell, the first cell being a non-serving cell of the terminal, and receive a CSI report of the first cell sent by the terminal.

35. A terminal, characterized by Comprising: One or more processors; The terminal is configured to perform the method in any of claims 1 to 16.

36. A network device, comprising: Comprising: One or more processors; The network device is configured to perform the method in any of claims 17 to 31.

37. A communication system, characterized by The terminal and the network device are configured to perform the method in any of claims 1 to 16 and 17 to 31.

38. A storage medium, the storage medium storing instructions, wherein, The instructions, when executed on a communication device, cause the communication device to perform the method in any of claims 1 to 16 or 17 to 31.

39. A program product, characterized by The computer program, when executed by a communication device, causes the communication device to perform the method in any of claims 1 to 16 or 17 to 31.

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