Communication method, communication device, communication system, storage medium

Abstract

The present disclosure provides a communication method, a communication device, a communication system and a storage medium. The method comprises: determining, by a terminal, a first report according to first information, and determining a first reference signal resource according to the first report, wherein the first reference signal resource is used for CSI measurement on a first cell, and the first cell is not a serving cell of the terminal. In the present disclosure, 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 the network device can perform timely scheduling on the terminal according to the CSI report of the first cell when the first cell becomes a new serving cell of the terminal.

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 guarantee 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] determining a first report according to the first information;

[0006] determining a first reference signal resource according to the first report, the first reference signal resource being used for CSI measurement on a first cell, the first cell not being a serving cell of the terminal.

[0007] According to a second aspect of an embodiment of the present disclosure, a communication method is provided, performed by a network device, and the method comprises:

[0008] sending first information to a terminal, the first information being used for determining a first report, the first report determining a first reference signal resource, the first reference signal resource being used for CSI measurement on a first cell, the first cell not being a serving cell of the terminal.

[0009] 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, and the method comprises:

[0010] the network device sends first information to the terminal;

[0011] the terminal receives the first information and determines a first report according to the first information;

[0012] the terminal determines a first reference signal resource according to the first report, the first reference signal resource being used for CSI measurement on a first cell, the first cell not being a serving cell of the terminal.

[0013] According to a fourth aspect of an embodiment of the present disclosure, a terminal is provided, comprising:

[0014] determine a first report according to the first information, and determine a first reference signal resource according to the first report, the first reference signal resource being used for CSI measurement on a first cell which is not a serving cell of the terminal.

[0015] According to a fifth aspect of the embodiments of the present disclosure, a network device is provided, including:

[0016] determine a first report according to the first information, and determine a first reference signal resource according to the first report, the first reference signal resource being used for CSI measurement on a first cell which is not a serving cell of the terminal.

[0017] According to a sixth aspect of the embodiments of the present disclosure, a terminal is provided, including one or more processors; and wherein the terminal is configured to perform the communication method according to the first aspect.

[0018] According to a seventh aspect of the embodiments of the present disclosure, a network device is provided, including one or more processors; and wherein the network device is configured to perform the communication method according to the second aspect.

[0019] According to an eighth aspect of the embodiments of the present disclosure, a communication system is provided, including 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.

[0020] According to a ninth aspect of the embodiments of the present disclosure, a storage medium is provided, which stores instructions, when the instructions are 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.

[0021] According to a tenth aspect of the embodiments of the present disclosure, a program product is provided, including a computer program, and the computer program is executed by a communication device to implement the communication method according to the first aspect or the second aspect.

[0022] According to an eleventh aspect of the embodiments of the present disclosure, a computer program is provided, when it is run on a computer, causing the computer to perform the communication method according to the first aspect or the second aspect.

[0023] 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 perform the method provided by the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved are referred to the beneficial effects in the corresponding method, which will not be described here. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above mentioned and / or additional aspects and advantages of the present disclosure will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0025] FIG. 1 is a schematic diagram of an architecture of some communication systems according to an embodiment of the present disclosure;

[0026] FIG. 2A is a schematic diagram of a flow of a communication method according to an embodiment of the present disclosure;

[0027] FIG. 2B is a schematic diagram of a flow of another communication method according to an embodiment of the present disclosure;

[0028] FIG. 2C is a schematic diagram of a flow of another communication method according to an embodiment of the present disclosure;

[0029] FIG. 2D is a schematic diagram of a flow of another communication method according to an embodiment of the present disclosure;

[0030] FIG. 3A is a schematic diagram of a flow of another communication method according to an embodiment of the present disclosure;

[0031] FIG. 3B is a schematic diagram of a flow of another communication method according to an embodiment of the present disclosure;

[0032] FIG. 3C is a schematic diagram of a flow of another communication method according to an embodiment of the present disclosure;

[0033] FIG. 3D is a schematic diagram of a flow of another communication method according to an embodiment of the present disclosure;

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

[0035] FIG. 4A is a schematic diagram of a flow of another communication method according to an embodiment of the present disclosure;

[0036] FIG. 4B is a schematic diagram of a flow of another communication method according to an embodiment of the present disclosure;

[0037] FIG. 4C is a schematic diagram of a flow of another communication method according to an embodiment of the present disclosure;

[0038] FIG. 4D is a schematic diagram of a flow of another communication method according to an embodiment of the present disclosure;

[0039] FIG. 5 is a schematic diagram of a flow of another communication method according to an embodiment of the present disclosure;

[0040] FIG. 6A is a schematic diagram of a structure of a terminal according to an embodiment of the present disclosure;

[0041] FIG. 6B is a schematic diagram of a structure of a network device according to an embodiment of the present disclosure;

[0042] FIG. 7A is a structural schematic diagram of a communication device according to an embodiment of the present disclosure;

[0043] FIG. 7B is a structural schematic diagram of a chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0044] The embodiments of the present disclosure provide a communication method, a communication device, a communication system, and a storage medium.

[0045] In a first aspect, the embodiments of the present disclosure provide a communication method, executed by a terminal, the method comprising:

[0046] determining a first report according to the first information;

[0047] determining a first reference signal resource according to the first report, the first reference signal resource being used for CSI measurement on a first cell, the first cell not being a serving cell of the terminal.

[0048] 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.

[0049] In combination with some embodiments of the first aspect, in some embodiments, the determining the first reference signal resource according to the first report comprises:

[0050] determining a first report identification ID according to the first information;

[0051] determining configuration information of the first reference signal resource according to the first report ID;

[0052] determining the first reference signal resource according to the configuration information.

[0053] In the above embodiments, the configuration information of the first reference signal resource can be determined based on the mapping relationship between the report ID and the configuration of the reference signal resource, so as to obtain the first reference signal resource of the first cell, thereby realizing the early measurement of the CSI of the first cell.

[0054] In combination with some embodiments of the first aspect, in some embodiments, the determining the first report ID according to the first information comprises:

[0055] According to the first information, a triggered report configuration ID is determined as the ID of the first report; or

[0056] According to the first information, a first trigger state is determined, and the first report ID is determined according to the first trigger state.

[0057] In the above embodiment, the first report configuration ID can be directly determined by the first information, or the first report ID can be indirectly determined based on the first information, thereby improving the flexibility of determining the first report ID.

[0058] In combination with some embodiments of the first aspect, in some embodiments, the first information includes at least one of the following information: RRC, DCI and first MAC CE.

[0059] In combination with some embodiments of the first aspect, in some embodiments, the configuration information of the first reference signal resource is contained in at least one of the following information:

[0060] Report configuration information of CSI;

[0061] Report configuration information of L1 / L2 triggered mobility LTM-CSI.

[0062] In the above embodiment, the configuration information of the first reference signal resource can be carried by the report configuration information of CSI or the report configuration information of LTM-CSI, thereby realizing information multiplexing, reducing resource occupation and saving signaling overhead.

[0063] 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:

[0064] The first reference signal resource is a reference signal resource corresponding to the first cell;

[0065] The first reference signal resource is a reference signal resource having a quasi co-location QCL relationship with the reference signal resource of the first cell.

[0066] In combination with some embodiments of the first aspect, in some embodiments, the method further includes at least one of the following:

[0067] Receiving the RRC sent by the network device, the RRC being used to configure at least one of the following: a first correspondence relationship between a trigger state and a report configuration ID, and a second correspondence relationship between a report configuration ID and configuration information of a reference signal resource;

[0068] Receiving the first DCI sent by the network device, the first DCI including a first code point, and determining the first report configuration ID corresponding to the first code point as the first report ID;

[0069] According to the second correspondence relationship, configuration information of the reference signal resource corresponding to the first report ID is determined as the configuration information of the first reference signal resource.

[0070] In the above embodiments, the configuration information of the first reference signal resource can be determined through the combination of multiple signals to obtain the first reference signal resource of the first cell, so as to realize the early measurement of the CSI of the first cell.

[0071] In combination with some embodiments of the first aspect, in some embodiments, the determining the first report configuration ID corresponding to the first code point comprises:

[0072] determining a first trigger state corresponding to the first code point, and determining the first report configuration ID corresponding to the first trigger state according to the first correspondence relationship; or

[0073] The RRC is further configured to configure a report configuration ID list, and determine the first report configuration ID corresponding to the first code point based on a protocol agreement from the report configuration ID list.

[0074] In combination with some embodiments of the first aspect, in some embodiments, the configuration information of the first reference signal resource is contained in a report configuration corresponding to the LTM CSI report configuration ID, and the LTM CSI report configuration ID corresponds to a first list; or the configuration information of the first reference signal resource is contained in a report configuration corresponding to the CSI report configuration ID, and the CSI report configuration ID corresponds to a second list.

[0075] The LTM CSI report configuration ID is used for CSI measurement configuration of the first cell, the CSI report configuration ID is used for CSI measurement configuration of a serving cell of the terminal, and the first list is different from the second list.

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

[0077] The first DCI comprises a first indication field, and according to the value of a bit in the first indication field, a list triggered by the first DCI is determined from the first list and the second list.

[0078] In combination with some embodiments of the first aspect, in some embodiments, the first DCI is sent by a serving cell of the terminal, and is sent before a second MAC CE carrying an LTM cell handover command, or is sent within a set time interval after the second MAC CE is sent, or is sent before a hybrid automatic repeat request (HARQ) acknowledgement (ACK) / non-acknowledgement (NACK) feedback corresponding to the second MAC CE.

[0079] In some embodiments of the first aspect, in some embodiments, the second MAC CE comprises at least one of the following information:

[0080] a target configuration ID, used at least for determining a target cell ID;

[0081] a TA;

[0082] a TCI state ID;

[0083] a random access preamble index;

[0084] an SSB index;

[0085] a PRACH mask index.

[0086] In some embodiments of the first aspect, in some embodiments, the method further comprises:

[0087] receiving a second MAC CE sent by the network device, the second MAC CE carrying a cell handover command of the LTM;

[0088] randomly accessing a target cell of the terminal;

[0089] receiving a second DCI corresponding to random access feedback in a random access process, the second DCI being used to trigger a first report of the target cell.

[0090] In the above embodiments, the configuration information of the first reference signal resource can be determined through the combination of the second MAC CE signaling and the second DCI, so as to obtain the first reference signal resource of the first cell, thereby realizing the early measurement of the CSI of the first cell.

[0091] In some embodiments of the first aspect, in some embodiments, the method comprises at least one of the following:

[0092] receiving an RRC sent by the network device, the RRC being used to configure at least one of a first correspondence relationship between a trigger state and a report configuration ID, and a second correspondence relationship between a report configuration ID and configuration information of a reference signal resource;

[0093] receiving a first MAC CE sent by the network device, and triggering at least one second report configuration ID of the first cell according to the first MAC CE, as the first report ID;

[0094] determining, according to the second correspondence relationship, the configuration information of the reference signal resource corresponding to the first report ID, as the configuration information of the first reference signal resource.

[0095] In the above embodiments, the configuration information of the first reference signal resource can be determined through a combination of the RRC and the first MAC CE, so as to obtain the first reference signal resource of the first cell, thereby realizing the early measurement of the CSI of the first cell.

[0096] In some embodiments of the first aspect, in some embodiments, the first MAC CE is one of the following MAC CEs:

[0097] a second MAC CE carrying the LTM cell handover command;

[0098] a MAC CE different from the second MAC CE.

[0099] In some embodiments of the first aspect, in some embodiments, the method further comprises:

[0100] reporting a CSI report of the first cell to the network device.

[0101] In some embodiments of the first aspect, in some embodiments, the method further comprises:

[0102] reporting a CSI report of the first cell to the network device through a PUSCH.

[0103] In some embodiments of the first aspect, in some embodiments, the method further comprises:

[0104] determining a time-frequency resource of the PUSCH scheduled by the DCI, and reporting a CSI report of the first cell to the network device on the time-frequency resource.

[0105] In some embodiments of the first aspect, in some embodiments, the determining the time-frequency resource of the PUSCH scheduled by the DCI comprises:

[0106] determining a time-frequency resource of the PUSCH scheduled by a first DCI; or

[0107] determining a time-frequency resource of the PUSCH scheduled by a second DCI corresponding to a random access feedback in a random access procedure.

[0108] In some embodiments of the first aspect, in some embodiments, the determining the time-frequency resource of the PUSCH scheduled by the DCI comprises:

[0109] receiving a second MAC CE carrying the LTM cell handover command sent by the network device;

[0110] monitoring a search space of a target cell indicated by the second MAC CE;

[0111] In response to monitoring a third DCI transmitted by the target cell, determine time-frequency resources of the PUSCH scheduled by the third DCI.

[0112] In some embodiments in combination with the first aspect, the method further comprises:

[0113] reporting, to the network device, a CSI report of the first cell via a granted CG PUSCH for the LTM.

[0114] In some embodiments in combination with the first aspect, the method further comprises:

[0115] receiving a second MAC CE carrying a LTM cell handover command transmitted by the network device;

[0116] receiving an RRC transmitted by a target cell indicated by the second MAC CE, wherein the RRC comprises configuration information of the CG PUSCH;

[0117] reporting, to the network device, a CSI report of the first cell according to the configuration information of the CG PUSCH.

[0118] In some embodiments in combination with the first aspect, the method further comprises:

[0119] reporting, to the network device, a CSI report of the first cell via a PUSCH of a message 3 in a 4-step random access procedure; or,

[0120] reporting, to the network device, a CSI report of the first cell via a PUSCH of a message A in a 2-step random access procedure.

[0121] In some embodiments in combination with the first aspect, the method further comprises:

[0122] transmitting, to a network device corresponding to the first cell, a CSI report of the first cell on a PUSCH.

[0123] In the above embodiments, before handover, the first cell can be measured based on a first reference signal resource, and a CSI report of the first cell can be reported to the network device, so that the network device can obtain the CSI report of the first cell in time, and when the first cell becomes a new serving cell of the terminal, the network device can schedule the terminal in time according to the CSI report of the first cell, improve the efficiency and speed of data transmission, and improve the decoding success rate.

[0124] In some embodiments of the first aspect, in some embodiments, the first DCI is a DCI that does not indicate time-frequency resources of a PUSCH, and each bit of the second indication field of the first DCI is set to a preset value.

[0125] In some embodiments of the first aspect, in some embodiments, the method further comprises:

[0126] reporting, to the network device, the CSI report of the first cell and the LTM cell switching completion information on the same PUSCH.

[0127] In some embodiments of the first aspect, in some embodiments, the terminal obtains multiple PUSCHs, and the method further comprises:

[0128] sending the CSI report of the first cell on a first PUSCH that is the earliest in time among the multiple PUSCHs; or,

[0129] sending the CSI report of the first cell on a second PUSCH that is the latest in corresponding configuration signaling among the multiple PUSCHs.

[0130] In the above embodiments, the CSI report of the first cell is sent on the PUSCH resource that is the earliest in time or the PUSCH resource that is the latest in corresponding configuration signaling, so that the network device can obtain the CSI report of the first cell as early as possible.

[0131] In some embodiments of the first aspect, in some embodiments, the CSI report of the first cell includes at least one of the following information: PMI, RI, CQI, LI, and CRI.

[0132] 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.

[0133] In a second aspect, the embodiments of the present disclosure provide a communication method, performed by a network device, the method comprising:

[0134] sending, to a terminal, first information, the first information being used to determine a first report, the first report determining a first reference signal resource, the first reference signal resource being used for CSI measurement on a first cell, the first cell not being a serving cell of the terminal.

[0135] In the above embodiments, the network device can indicate the terminal with the first reference signal resource of the first cell, and in the case that 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 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.

[0136] In some embodiments in combination with the second aspect, in some embodiments, the first information is used to determine the first report identification ID, the first report ID is used to determine the configuration information of the first reference signal resource, and the configuration information is used to determine the first reference signal resource.

[0137] In some embodiments in combination with the second aspect, in some embodiments, the first information is used to determine the triggered report configuration ID as the ID of the first report; or,

[0138] The first information is used to determine a first trigger state, and the first trigger state determines the first report ID.

[0139] In some embodiments in combination with the second aspect, in some embodiments, the first information includes at least one of the following information: RRC, DCI and first MAC CE.

[0140] In some embodiments in combination with the second aspect, in some embodiments, the configuration information of the first reference signal resource is contained in at least one of the following information:

[0141] The report configuration of the CSI;

[0142] The LTM-CSI report configuration.

[0143] In some embodiments in combination with the second aspect, in some embodiments, the first reference signal resource is at least one of the following reference signal resources:

[0144] The first reference signal resource is a reference signal resource corresponding to the first cell;

[0145] The first reference signal resource is a reference signal resource having a quasi co-location QCL relationship with the reference signal resource of the first cell.

[0146] In some embodiments in combination with the second aspect, in some embodiments, the method further includes at least one of the following:

[0147] sending, to the terminal, an RRC, the RRC being used for triggering at least one of a first correspondence relationship between a state and a reporting configuration ID, and a second correspondence relationship between the reporting configuration ID and configuration information of a reference signal resource;

[0148] sending, to the terminal, a first DCI, the first DCI including a first code point, the first code point being used for determining a corresponding first reporting configuration ID as the first reporting ID;

[0149] the second correspondence relationship being used for determining configuration information of a reference signal resource corresponding to the ID of the first report as the configuration information of the first reference signal resource.

[0150] In combination with some embodiments of the second aspect, in some embodiments, the first code point is used for determining a corresponding first trigger state, and the first correspondence relationship is used for determining a first reporting configuration ID corresponding to the first trigger state; or,

[0151] the RRC is further used for configuring a reporting configuration ID list, and the first code point is used for determining, based on a protocol agreement, a first reporting configuration ID corresponding to the first code point from the reporting configuration ID list.

[0152] In combination with some embodiments of the second aspect, in some embodiments, the configuration information of the first reference signal resource is contained in a reporting configuration corresponding to the LTM CSI reporting configuration ID, and the LTM CSI reporting configuration ID corresponds to a first list; or, the configuration information of the first reference signal resource is contained in a reporting configuration corresponding to the CSI reporting configuration ID, and the CSI reporting configuration ID corresponds to a second list;

[0153] wherein the LTM CSI reporting configuration ID is used for CSI measurement configuration of the first cell, and the CSI reporting configuration ID is used for CSI measurement configuration of a serving cell of the terminal; and the first list is different from the second list.

[0154] In combination with some embodiments of the second aspect, in some embodiments, the first DCI includes a first indication field, and a value of a bit in the first indication field is used for determining a list triggered by the first DCI from the first list and the second list.

[0155] In combination with some embodiments of the second aspect, in some embodiments, the first DCI is sent by a serving cell of the terminal, and is sent before an LTM cell switching command carried by a MAC CE, or is sent within a set time interval after the LTM cell switching command carried by the MAC CE is sent, or is sent before HARQ ACK / NACK feedback corresponding to the second MAC CE.

[0156] In some embodiments combining with the second aspect, in some embodiments, the second MAC CE comprises at least one of the following information:

[0157] a target configuration ID, used at least for determining a target cell ID;

[0158] a TA;

[0159] a TCI state ID;

[0160] a random access preamble index;

[0161] an SSB index;

[0162] a PRACH mask index.

[0163] In some embodiments combining with the second aspect, in some embodiments, the method further comprises:

[0164] sending, to the terminal, a second MAC CE carrying an LTM cell handover command;

[0165] sending, to the terminal, a second DCI corresponding to a random access feedback in a random access procedure, the second DCI being used for triggering a first report of the target cell.

[0166] In some embodiments combining with the second aspect, in some embodiments, the method comprises at least one of the following:

[0167] sending, to the terminal, an RRC, the RRC being used for configuring at least one of a first correspondence relationship between a trigger state and a report configuration ID, a second correspondence relationship between a report configuration ID and configuration information of a reference signal resource;

[0168] sending, to the terminal, a first MAC CE, the first MAC CE being used for triggering at least one second report configuration ID of the first cell as the first report ID;

[0169] determining, according to the second correspondence relationship, configuration information of a reference signal resource corresponding to the second report configuration ID as the configuration information of the first reference signal resource.

[0170] In some embodiments combining with the second aspect, in some embodiments, the first MAC CE is one of the following MAC CEs:

[0171] a second MAC CE carrying an LTM cell handover command;

[0172] a MAC CE different from the second MAC CE.

[0173] In some embodiments in combination with the second aspect, the method further comprises:

[0174] receiving, from the terminal, a CSI report of the first cell.

[0175] In some embodiments in combination with the second aspect, the method further comprises:

[0176] receiving, from the terminal, a CSI report of the first cell via a PUSCH.

[0177] In some embodiments in combination with the second aspect, the method further comprises:

[0178] sending, to the terminal, a DCI, the DCI being used for scheduling time-frequency resources of the PUSCH;

[0179] receiving, from the terminal, a CSI report of the first cell on the time-frequency resources.

[0180] In some embodiments in combination with the second aspect, the method further comprises:

[0181] sending, to the terminal, a first DCI, the first DCI being used for scheduling time-frequency resources of the PUSCH; or,

[0182] sending, to the terminal, a second DCI corresponding to a random access feedback in a random access procedure, the second DCI being used for scheduling time-frequency resources of the PUSCH.

[0183] In some embodiments in combination with the second aspect, the method further comprises:

[0184] sending, to the terminal, a second MAC CE carrying a LTM cell switch command;

[0185] sending, to the terminal, a third DCI on a search space of a target cell indicated by the second MAC CE, the third DCI being used for scheduling time-frequency resources of the PUSCH.

[0186] In some embodiments in combination with the second aspect, the method further comprises:

[0187] receiving, from the terminal, a CSI report of the first cell via a CG PUSCH for LTM.

[0188] In some embodiments in combination with the second aspect, the method further comprises:

[0189] sending, to the terminal, a second MAC CE carrying a LTM cell switch command;

[0190] to the terminal RRC, the RRC including configuration information of the CG PUSCH, the configuration information of the CG PUSCH being used for the terminal to report the CSI report of the first cell.

[0191] In some embodiments in combination with the second aspect, the method further includes:

[0192] receiving the CSI report of the first cell reported by the terminal through a PUSCH of a message 3 in a 4-step random access procedure; or,

[0193] receiving the CSI report of the first cell reported by the terminal through a PUSCH of a message A in a 2-step random access procedure.

[0194] In some embodiments in combination with the second aspect, the network device includes a network device corresponding to the first cell.

[0195] In some embodiments in combination with the second aspect, the first DCI is a DCI not indicating time-frequency resources of a PUSCH, and values of bit positions of a second indication field of the first DCI are all set values.

[0196] In some embodiments in combination with the second aspect, the method further includes:

[0197] receiving the CSI report of the first cell and the LTM cell switching completion information reported by the terminal in a same PUSCH.

[0198] In some embodiments in combination with the second aspect, the method further includes:

[0199] receiving the CSI report of the first cell on a first PUSCH that is the earliest in time among a plurality of PUSCHs; or,

[0200] receiving the CSI report of the first cell on a second PUSCH that is the latest in corresponding configuration signaling among the plurality of PUSCHs.

[0201] In some embodiments in combination with the second aspect, the CSI report of the first cell includes at least one of the following information: PMI, RI, CQI, LI, CRI.

[0202] In some embodiments in combination with the second aspect, the first cell is one of a candidate cell, a neighbor cell, or a target cell of the terminal.

[0203] In a third aspect, the embodiments of the present disclosure provide a communication method, used in a communication system, the communication system comprising a terminal and a network device, the method comprising:

[0204] The network device sends first information to the terminal;

[0205] The terminal receives the first information, and determines a first report according to the first information;

[0206] The terminal determines a first reference signal resource according to the first report, the first reference signal resource being used for CSI measurement on a first cell, the first cell not being a serving cell of the terminal.

[0207] In a fourth aspect, the embodiments of the present disclosure provide a terminal, comprising:

[0208] A processing module, configured to determine a first report according to first information, and determine a first reference signal resource according to the first report, the first reference signal resource being used for CSI measurement on a first cell, the first cell not being a serving cell of the terminal.

[0209] In combination with some embodiments of the fourth aspect, in some embodiments, the processing module is further configured to:

[0210] Determine, according to the first information, a first report identification ID;

[0211] Determine, according to the first report ID, configuration information of the first reference signal resource;

[0212] Determine, according to the configuration information, the first reference signal resource.

[0213] In combination with some embodiments of the fourth aspect, in some embodiments, the processing module is further configured to:

[0214] Determine, according to the first information, a triggered report configuration ID as the ID of the first report; or

[0215] Determine, according to the first information, a first trigger state, and determine the first report ID according to the first trigger state.

[0216] In combination with some embodiments of the fourth aspect, in some embodiments, the first information comprises at least one of the following information: RRC, DCI and first MAC CE.

[0217] In combination with some embodiments of the fourth aspect, in some embodiments, the configuration information of the first reference signal resource is contained in at least one of the following information:

[0218] Report configuration of CSI;

[0219] LTM-CSI reporting configuration.

[0220] In some embodiments of the fourth aspect, in some embodiments, the first reference signal resource is at least one of the following reference signal resources:

[0221] The first reference signal resource is a reference signal resource corresponding to the first cell;

[0222] 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.

[0223] In some embodiments of the fourth aspect, in some embodiments, the transceiver is configured to receive an RRC transmitted by the network device, the RRC being used to configure at least one of a first correspondence relationship between a trigger state and a reporting configuration ID, and a second correspondence relationship between a reporting configuration ID and configuration information of a reference signal resource; receive a first DCI transmitted by the network device, the first DCI including a first code point, determine a first reporting configuration ID corresponding to the first code point as the first reporting ID; and determine configuration information of a reference signal resource corresponding to the first reporting ID as configuration information of the first reference signal resource according to the second correspondence relationship.

[0224] In some embodiments of the fourth aspect, in some embodiments, the processing module is further configured to determine a first trigger state corresponding to the first code point, and determine a first reporting configuration ID corresponding to the first trigger state according to the first correspondence relationship; or the RRC is further configured to configure a reporting configuration ID list, and determine a first reporting configuration ID corresponding to the first code point from the reporting configuration ID list based on a protocol agreement.

[0225] In some embodiments of the fourth aspect, in some embodiments, the configuration information of the first reference signal resource is included in a reporting configuration corresponding to the LTM CSI reporting configuration ID, the LTM CSI reporting configuration ID corresponding to a first list; or the configuration information of the first reference signal resource is included in a reporting configuration corresponding to the CSI reporting configuration ID, the CSI reporting configuration ID corresponding to a second list.

[0226] The LTM CSI reporting configuration ID is used for CSI measurement configuration of the first cell, and the CSI reporting configuration ID is used for CSI measurement configuration of a serving cell of the terminal; and the first list is different from the second list.

[0227] In some embodiments of the fourth aspect, in some embodiments, the first DCI includes a first indication field, and the processing module is further configured to determine the list triggered by the first DCI from the first list and the second list according to a value of a bit in the first indication field.

[0228] In some embodiments of the fourth aspect, in some embodiments, the first DCI is transmitted by a serving cell of the terminal, and is transmitted before a second MAC CE carrying an LTM cell handover command, or is transmitted within a set time interval after the second MAC CE is transmitted, or is transmitted before hybrid automatic repeat request (HARQ) acknowledgement (ACK) / non-acknowledgement (NACK) feedback corresponding to the second MAC CE.

[0229] In some embodiments of the fourth aspect, in some embodiments, the second MAC CE includes at least one of the following information:

[0230] a target configuration ID, used at least to determine a target cell ID;

[0231] a TA;

[0232] a TCI state ID;

[0233] a random access preamble index;

[0234] an SSB index;

[0235] a PRACH mask index.

[0236] In some embodiments of the fourth aspect, in some embodiments, the transceiver is configured to receive a second MAC CE carrying an LTM cell handover command transmitted by the network device, perform random access on a target cell of the terminal, and receive a second DCI corresponding to random access feedback in a random access process, the second DCI being used to trigger a first report of the target cell.

[0237] In some embodiments of the fourth aspect, in some embodiments, the transceiver is configured to receive an RRC transmitted by the network device, the RRC being used to configure at least one of a first correspondence relationship between a trigger state and a report configuration ID, and a second correspondence relationship between a report configuration ID and configuration information of a reference signal resource; and receive a first MAC CE transmitted by the network device, and trigger at least one second report configuration ID of the first cell as the first report ID according to the first MAC CE.

[0238] The processing module is configured to determine configuration information of a reference signal resource corresponding to the first report ID as the configuration information of the first reference signal resource according to the second correspondence relationship.

[0239] In some embodiments in combination with the fourth aspect, in some embodiments, the first MAC CE is one of the following MAC CEs:

[0240] a second MAC CE carrying the LTM cell handover command;

[0241] a MAC CE different from the second MAC CE.

[0242] In some embodiments in combination with the fourth aspect, in some embodiments, the transceiver is configured to report, to the network device, a CSI report of the first cell.

[0243] In some embodiments in combination with the fourth aspect, in some embodiments, the transceiver is configured to report, to the network device, a CSI report of the first cell via a physical uplink shared channel (PUSCH).

[0244] In some embodiments in combination with the fourth aspect, in some embodiments, the processing module is further configured to determine time-frequency resources of the PUSCH scheduled by the DCI, and the transceiver is further configured to report, to the network device, a CSI report of the first cell on the time-frequency resources.

[0245] In some embodiments in combination with the fourth aspect, in some embodiments, the processing module is further configured to determine time-frequency resources of the PUSCH scheduled by a first DCI, or determine time-frequency resources of the PUSCH scheduled by a second DCI corresponding to a random access feedback in a random access procedure.

[0246] In some embodiments in combination with the fourth aspect, in some embodiments, the transceiver is further configured to receive a second MAC CE carrying the LTM cell handover command sent by the network device;

[0247] the processing module is further configured to monitor a search space of a target cell indicated by the second MAC CE, and determine time-frequency resources of the PUSCH scheduled by a third DCI sent by the target cell in response to monitoring the third DCI.

[0248] In some embodiments in combination with the fourth aspect, in some embodiments, the transceiver is further configured to report, to the network device, a CSI report of the first cell via a CG PUSCH for LTM.

[0249] In some embodiments of the fourth aspect, in some embodiments, the transceiver is further configured to receive a second MAC CE of the LTM cell handover command of the bearer sent by the network device; receive an RRC sent by a target cell indicated by the second MAC CE, wherein the RRC comprises configuration information of the CG PUSCH; and report the CSI report of the first cell to the network device according to the configuration information of the CG PUSCH.

[0250] In some embodiments of the fourth aspect, in some embodiments, the transceiver is further configured to report the CSI report of the first cell to the network device through a PUSCH of a message 3 in a 4-step random access process, or report the CSI report of the first cell to the network device through a PUSCH of a message A in a 2-step random access process.

[0251] In some embodiments of the fourth aspect, in some embodiments, the transceiver is further configured to send the CSI report of the first cell to a network device corresponding to the first cell on a PUSCH.

[0252] In some embodiments of the fourth aspect, in some embodiments, the first DCI is a DCI that does not indicate a time-frequency resource of a PUSCH, and values of bit positions of a second indication field of the first DCI are all set values.

[0253] In some embodiments of the fourth aspect, in some embodiments, the transceiver is further configured to report the CSI report of the first cell and the LTM cell handover completion information to the network device on a same PUSCH.

[0254] In some embodiments of the fourth aspect, in some embodiments, the terminal obtains a plurality of PUSCHs, and the transceiver is further configured to send the CSI report of the first cell on a first PUSCH that arrives earliest among the plurality of PUSCHs, or send the CSI report of the first cell on a second PUSCH corresponding to latest configuration signaling among the plurality of PUSCHs.

[0255] In some embodiments of the fourth aspect, in some embodiments, the CSI report of the first cell comprises at least one of the following information:

[0256] PMI, RI, CQI, LI, CRI.

[0257] 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.

[0258] In a fifth aspect, the embodiments of the present disclosure provide a network device, comprising:

[0259] transmitting, to the terminal, first information used for determining a first report, the first report determining a first reference signal resource used for CSI measurement on a first cell, the first cell being not a serving cell of the terminal.

[0260] In some embodiments of the fifth aspect, in some embodiments, the first information is used for determining a first report identification (ID), the first report ID being used for determining configuration information of the first reference signal resource, the configuration information being used for determining the first reference signal resource.

[0261] In some embodiments of the fifth aspect, in some embodiments, the first information is used for determining a triggered report configuration ID as the first report ID; or the first information is used for determining a first trigger state, the first trigger state determining the first report ID.

[0262] In some embodiments of the fifth aspect, in some embodiments, the first information comprises at least one of the following: RRC, DCI and first MAC CE.

[0263] In some embodiments of the fifth aspect, in some embodiments, the configuration information of the first reference signal resource is contained in at least one of the following:

[0264] report configuration of CSI;

[0265] LTM-CSI report configuration.

[0266] In some embodiments of the fifth aspect, in some embodiments, the first reference signal resource is at least one of the following reference signal resources:

[0267] the first reference signal resource is a reference signal resource corresponding to the first cell;

[0268] 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.

[0269] In some embodiments of the fifth aspect, in some embodiments, the transceiver is further configured to transmit, to the terminal, RRC used for at least one of the following: a first correspondence relationship between a trigger state and a report configuration ID, and a second correspondence relationship between the report configuration ID and configuration information of a reference signal resource; and transmit, to the terminal, first DCI comprising a first code point, the first code point being used for determining a corresponding report configuration ID as the first report ID.

[0270] The second correspondence is used to determine configuration information of a reference signal resource corresponding to the ID of the first report as the configuration information of the first reference signal resource.

[0271] In combination with some embodiments of the fifth aspect, in some embodiments, the first code point is used to determine a corresponding first trigger state, and the first correspondence is used to determine a first report configuration ID corresponding to the first trigger state; or,

[0272] The RRC is further configured to configure a report configuration ID list, and the first code point is used to determine a first report configuration ID corresponding to the first code point from the report configuration ID list based on a protocol agreement.

[0273] In combination with some embodiments of the fifth aspect, in some embodiments, the configuration information of the first reference signal resource is contained in a report configuration corresponding to the LTM CSI report configuration ID, and the LTM CSI report configuration ID corresponds to a first list; or, the configuration information of the first reference signal resource is contained in a report configuration corresponding to the CSI report configuration ID, and the CSI report configuration ID corresponds to a second list.

[0274] The LTM CSI report configuration ID is used to configure CSI measurement of the first cell, and the CSI report configuration ID is used to configure CSI measurement of a serving cell of the terminal; and the first list is different from the second list.

[0275] In combination with some embodiments of the fifth aspect, in some embodiments, the first DCI includes a first indication field, and a value of a bit in the first indication field is used to determine a list triggered by the first DCI from the first list and the second list.

[0276] In combination with some embodiments of the fifth aspect, in some embodiments, the first DCI is sent by a serving cell of the terminal, and is sent before an LTM cell switching command carried by a MAC CE, or is sent within a set time interval after the LTM cell switching command carried by the MAC CE is sent, or is sent before HARQ ACK / NACK feedback corresponding to the second MAC CE.

[0277] In combination with some embodiments of the fifth aspect, in some embodiments, the second MAC CE includes at least one of the following information:

[0278] A target configuration ID, used at least to determine a target cell ID;

[0279] TA;

[0280] TCI state ID;

[0281] a random access preamble index;

[0282] an SSB index;

[0283] a PRACH mask index.

[0284] In some embodiments of the fifth aspect, the transceiver is further configured to send, to the terminal, a second MAC CE carrying an LTM cell handover command; and send, to the terminal, a second DCI corresponding to random access feedback in a random access procedure, the second DCI being used to trigger the first report of the target cell.

[0285] In some embodiments of the fifth aspect, the transceiver is further configured to send, to the terminal, an RRC, the RRC being used to configure at least one of a first correspondence relationship between a trigger state and a report configuration ID, and a second correspondence relationship between a report configuration ID and configuration information of a reference signal resource; send, to the terminal, a first MAC CE, the first MAC CE being used to trigger at least one second report configuration ID of the first cell as the first report ID; and determine, according to the second correspondence relationship, the configuration information of the reference signal resource corresponding to the second report configuration ID as the configuration information of the first reference signal resource.

[0286] In some embodiments of the fifth aspect, the first MAC CE is one of the following MAC CEs:

[0287] a second MAC CE carrying an LTM cell handover command;

[0288] a MAC CE different from the second MAC CE.

[0289] In some embodiments of the fifth aspect, the transceiver is further configured to receive a CSI report of the first cell reported by the terminal.

[0290] In some embodiments of the fifth aspect, the transceiver is further configured to receive, through a PUSCH, a CSI report of the first cell reported by the terminal.

[0291] In some embodiments of the fifth aspect, the transceiver is further configured to send, to the terminal, a DCI, the DCI being used to schedule time-frequency resources of the PUSCH; and receive, on the time-frequency resources, a CSI report of the first cell reported by the terminal.

[0292] In some embodiments of the fifth aspect, in some embodiments, the transceiver is further configured to send, to the terminal, a first DCI for scheduling time-frequency resources of the PUSCH, or send, to the terminal, a second DCI corresponding to random access feedback in a random access procedure, the second DCI being for scheduling time-frequency resources of the PUSCH.

[0293] In some embodiments of the fifth aspect, in some embodiments, the transceiver is further configured to send, to the terminal, a second MAC CE carrying a LTM cell handover command, and send, to the terminal, a third DCI in a search space of a target cell indicated by the second MAC CE, the third DCI being for scheduling time-frequency resources of the PUSCH.

[0294] In some embodiments of the fifth aspect, in some embodiments, the transceiver is further configured to receive, from the terminal, the CSI report of the first cell via the CG PUSCH for LTM.

[0295] In some embodiments of the fifth aspect, in some embodiments, the transceiver is further configured to send, to the terminal, a second MAC CE carrying a LTM cell handover command, and send, to the terminal, an RRC including configuration information of the CG PUSCH, the configuration information of the CG PUSCH being for the terminal to report the CSI report of the first cell.

[0296] In some embodiments of the fifth aspect, in some embodiments, the transceiver is further configured to receive, from the terminal, the CSI report of the first cell via a PUSCH of a message 3 in a 4-step random access procedure, or receive, from the terminal, the CSI report of the first cell via a PUSCH of a message A in a 2-step random access procedure.

[0297] In some embodiments of the fifth aspect, in some embodiments, the network device comprises a network device corresponding to the first cell.

[0298] In some embodiments of the fifth aspect, in some embodiments, the first DCI is a DCI not indicating time-frequency resources of the PUSCH, and values of bit positions of a second indication field of the first DCI are all set values.

[0299] In some embodiments of the fifth aspect, in some embodiments, the transceiver is further configured to receive, from the terminal, the CSI report of the first cell and the LTM cell handover completion information via a same PUSCH.

[0300] In some embodiments combined with the fifth aspect, in some embodiments, the transceiving module is further configured to receive the CSI report of the first cell on a first PUSCH of the multiple PUSCHs that arrives earliest in time; or a second PUSCH of the multiple PUSCHs that corresponds to the latest configuration signaling.

[0301] In some embodiments combined with the fifth aspect, in some embodiments, the CSI report of the first cell includes at least one of the following information: PMI, RI, CQI, LI, CRI.

[0302] In some embodiments combined with 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.

[0303] 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.

[0304] 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.

[0305] 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.

[0306] 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.

[0307] 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.

[0308] In an eleventh aspect, the embodiments of the present disclosure provide a computer program, when it is executed on a computer, causing the computer 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.

[0309] In a twelfth aspect, the embodiments of the present disclosure provide a chip or a chip system. The chip or the 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.

[0310] 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.

[0311] 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.

[0312] 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, an embodiment can be combined with the optional implementation of other embodiments.

[0313] In the embodiments of the present disclosure, the terms and / or descriptions between the embodiments are consistent and can be referred to each other if there is no special description and logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0314] 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.

[0315] 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.

[0316] In the embodiments of the present disclosure, "plurality" refers to two or more.

[0317] 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.

[0318] 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.

[0319] 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.

[0320] 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.

[0321] In some embodiments, "including A", "containing A", "for indicating A", "carrying A" can be interpreted as directly carrying A, or indirectly indicating A.

[0322] 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.

[0323] 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.

[0324] 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.

[0325] 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.

[0326] 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.

[0327] 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.

[0328] 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.

[0329] 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.

[0330] In some embodiments, the data, information, etc. can be obtained in compliance with the laws and regulations of the country where the location is situated.

[0331] In some embodiments, the data, information, etc. can be obtained after obtaining the consent of the user.

[0332] In addition, each element, each row, or each column in the table of the embodiments of the present 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.

[0333] The correspondence shown in each table in the present disclosure can be configured or predefined. The values of the information in each table are merely examples, and other values can be configured, and the present disclosure is not limited. When configuring the correspondence between the information and each parameter, it is not necessarily required to configure all the correspondences shown in each table. For example, the correspondence shown in some rows in the table in the present disclosure can also not be configured. For another example, the above table can be appropriately deformed and adjusted, for example, split, merged, etc. The names of the parameters shown in the titles of the above tables can also use other names understandable by the communication device, and the values or representations of the parameters can also use other values or representations understandable by the communication device. When implementing the above tables, other data structures can also be used, for example, arrays, queues, containers, stacks, linear tables, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, etc.

[0334] The predefinition in the present disclosure can be understood as defining, predefining, storing, pre-storing, pre-negotiating, pre-configuring, solidifying, or pre-burning.

[0335] FIG. 1 is a schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG. 1, the communication system can include a terminal 101 and a network device 102.

[0336] 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.

[0337] 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.

[0338] 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.

[0339] 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.

[0340] 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.

[0341] 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.

[0342] 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).

[0343] 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 the 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).

[0344] 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.

[0345] 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 for CSI measurement and CSI reporting of the new serving cell, 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.

[0346] 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.

[0347] In the embodiments of the present disclosure, the terminal can determine the first report according to the first information, and further determine the first reference signal resource for CSI measurement on the first cell according to the first report, wherein the first cell is not a serving cell of the terminal.

[0348] In some embodiments, the first information can include at least one of RRC, MAC CE and DCI.

[0349] In some embodiments, the first report is a triggered report, or the first report is an activated report. That is, the terminal can determine that the first report is triggered or activated according to the first information. This description applies to all embodiments of the present disclosure, and will not be repeated hereinafter.

[0350] FIG. 2A is an interaction schematic 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, in which the first information can include RRC and first DCI, and the above method includes:

[0351] In step S2101, the network device sends RRC to the terminal.

[0352] In some embodiments, the network device can send RRC to the terminal, and optionally, the terminal receives the RRC sent by the network device.

[0353] In some embodiments, the RRC is used to configure a first correspondence between the trigger state and the report configuration ID.

[0354] In some embodiments, the RRC is used to configure a second correspondence between the report configuration ID and the configuration information of the reference signal resource.

[0355] In some embodiments, the RRC is used to configure a first correspondence between the trigger state and the report configuration ID, and a second correspondence between the report configuration ID and the configuration information of the reference signal resource.

[0356] In some embodiments, the RRC is used to configure a list, and optionally, the configured list can include any one of a trigger state list or a report configuration ID list.

[0357] In some embodiments, the RRC transmitted by the network device can configure a (LTM) CSI trigger state list, each trigger state in the trigger state list corresponding to one or more report configuration IDs, each report configuration ID corresponding to resource configuration of a reference signal resource. Each resource configuration corresponds to one or more resources of the first cell, and the resource of the first cell can be used as the first reference signal resource. Optionally, the (LTM) CSI trigger state list includes at least one of an LTM CSI trigger state list and a CSI trigger state list.

[0358] In some embodiments, the RRC transmitted by the network device can configure a (LTM) CSI report configuration ID list, each report configuration ID in the report configuration ID list corresponding to resource configuration of a reference signal resource. Each resource configuration corresponds to one or more resources of the first cell, and the resource of the first cell can be used as the first reference signal resource. Optionally, the (LTM) CSI report configuration ID list includes at least one of an LTM CSI report configuration ID list and a CSI report configuration ID list.

[0359] 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.

[0360] 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 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.

[0361] In some embodiments, the number of first cells can be one or more.

[0362] Step S2102, the network device transmits the first DCI to the terminal.

[0363] In some embodiments, the first DCI includes a first codepoint.

[0364] In some embodiments, the terminal can receive a first DCI sent by a network device of a serving cell.

[0365] In step S2103, the terminal determines a first report configuration ID triggered by the first codepoint as the first report ID.

[0366] In some embodiments, after obtaining the first codepoint in the DCI, the first trigger state corresponding to the first codepoint can be determined based on a protocol agreement.

[0367] In some embodiments, the codepoint carried by the CSI request field in the first 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.

[0368] In some embodiments, after obtaining the first codepoint in the first DCI, the first report configuration ID corresponding to the first codepoint can be determined based on a protocol agreement.

[0369] In some embodiments, the configuration information of the first reference signal resource is included in a report configuration corresponding to an LTM CSI report configuration ID, and the LTM CSI report configuration ID corresponds to a first list; or, the configuration information of the first reference signal resource is included in a report configuration corresponding to a CSI report configuration ID, and the CSI report configuration ID corresponds to a second list.

[0370] In some embodiments, the first list can include any one of a first trigger state list or a first report configuration ID list; and the second list can include any one of a second trigger state list or a second report configuration ID list.

[0371] In some embodiments, the LTM CSI report configuration ID is used for CSI measurement configuration of a first cell; and the CSI report configuration ID is used for CSI measurement configuration of a serving cell of the terminal.

[0372] In some embodiments, the first list is different from the second list.

[0373] In some embodiments, the first DCI includes a first indication field, and according to a value of a bit in the first indication field, a list triggered by the first DCI is determined from the first list and the second list. For example, the first indication field can be one bit.

[0374] In some embodiments, the value of the bit in the first indication field being 1 can indicate that the first DCI triggers the list corresponding to the LTM CSI-reportconfig ID, that is, triggers the first list. The value of the bit in the first indication field being 0 can indicate that the first DCI triggers the list corresponding to the CSI-reportconfig ID, that is, triggers the second list. Optionally, after triggering a certain list by the 1-bit indication, a certain trigger state and / or a certain reportconfig ID corresponding to the first codepoint are determined from the list.

[0375] In some embodiments, the network device corresponding to the serving cell can send the first DCI to the terminal before sending the LTM cell switching command carried by the second Medium Access Control Control Element (MAC CE).

[0376] In some embodiments, the network device corresponding to the serving cell sends the first DCI to the terminal within a set time interval after sending the second MAC CE.

[0377] In some embodiments, the network device corresponding to the serving cell sends the first DCI to the terminal before sending the Hybrid Automatic Repeat reQuest (HARQ) acknowledgement (ACK) / non-acknowledgement (NACK) feedback corresponding to the second MAC CE.

[0378] In some embodiments, the second MAC CE includes at least one of the following information:

[0379] Target configuration ID, at least for determining a target cell ID;

[0380] Timing advance (TA);

[0381] Transmission Configuration Indication (TCI) StateID;

[0382] Random access preamble index;

[0383] SSB index;

[0384] Random access channel (Physical Random Access Channel, PRACH) mask index.

[0385] In some embodiments, the terminal determines, according to the first correspondence relationship, a first report configuration ID corresponding to the first trigger state as the first report ID.

[0386] In some embodiments, the first report configuration ID corresponding to the first trigger state is determined as the first report ID according to a first mapping relationship between the RRC-configured trigger state and the report configuration ID.

[0387] In some embodiments, the first DCI directly triggers a reportconfigID in a report configuration ID list, and the terminal directly determines, according to a protocol specification, a first report configuration ID corresponding to the first code point of the first DCI as the first report ID, without the need to determine the first report ID according to the first mapping relationship.

[0388] In some embodiments, the report configuration ID can include, but is not limited to, at least one of a CSI report configuration ID and an LTM-CSI report configuration ID.

[0389] In step S2104, the terminal determines, according to a second correspondence relationship, configuration information of a first reference signal resource corresponding to the first report ID as the configuration information of the first reference signal resource.

[0390] In some embodiments, the configuration information of the first reference signal resource corresponding to the first report ID is determined as the configuration information of the first reference signal resource according to a second correspondence relationship between the RRC-configured report configuration ID and the configuration information of the reference signal resource.

[0391] In some embodiments, the configuration information of the first reference signal resource can be LTM-CSI report configuration information.

[0392] In some embodiments, the configuration information of the first reference signal resource can be resource configuration information contained in the LTM-CSI report configuration information.

[0393] In some embodiments, the configuration information of the first reference signal resource can be CSI report configuration information.

[0394] In some embodiments, the configuration information of the first reference signal resource can be resource configuration information contained in the CSI report configuration information.

[0395] In some embodiments, the configuration information of the first reference signal resource can be or contained in the LTM-CSI report configuration information. Alternatively, the first reference signal resource can be configured based on a CSI framework.

[0396] In some embodiments, the configuration information of the first reference signal resource can be or included in the CSI reporting configuration information. Optionally, the first reference signal resource can be configured based on the LTM CSI framework.

[0397] In some embodiments, the configuration information of the first reference signal resource can include at least one of the following information:

[0398] 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.

[0399] The type of measurement resource, wherein the measurement type can include resources for channel measurement and resources for interference measurement.

[0400] The frequency domain information corresponding to the CSI-RS resource, including the absolute radio frequency channel number (ARFCN), used to indicate a global frequency domain location.

[0401] 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 precoding matrix identifier (PMI), rank identifier (RI), layer identifier (LI), channel quality identifier (CQI), reference signal resource identifier (CRI), etc. The codebook information of the CSI reporting, for example, can include codebook type and codebook limited subset, etc. The codebook type is used to specify the codebook type used when reporting, such as Type I, Type II or enhanced Type II codebook. The codebook limited subset is used to limit the range of precoding matrices reported by the terminal.

[0402] Configure power control parameters in the CSI measurement and reporting process;

[0403] Configure the time domain and frequency domain restrictions of the CSI measurement and reporting, etc.

[0404] Step S2105, the terminal determines the first reference signal resource according to the configuration information of the first reference signal resource.

[0405] In some embodiments, the first reference signal resource is a CSI-RS resource corresponding to the first cell, and can include at least one of a non-zero power (NZP) CSI-RS, an SSB, and a CSI interference measurement (CSI-IM) resource.

[0406] In some embodiments, the first cell corresponds to a set of reference signal resources, and the number or offset of the reference signal resources in the set can be determined based on the configuration information of the first reference signal resource. One or more reference signal resources in the set of reference signal resources are determined as the first reference signal resource.

[0407] In some embodiments, the first reference signal resource can be a reference signal resource having a quasi co-location (QCL) relationship with a reference signal resource of the first cell. Optionally, the network device can configure and indicate the first reference signal resource having the QCL relationship through radio resource control (RRC) signaling.

[0408] In some embodiments, the configuration information of the first reference signal resource can include specific parameters of the first reference signal resource, such as frequency, time position, period, etc. Optionally, the configuration information can carry an identifier of the resource. Optionally, the configuration information can further carry additional information of the resource, such as priority of the resource, etc.

[0409] In some embodiments, after the terminal obtains the configuration information of the first reference signal resource, the terminal can determine the first reference signal resource based on the information carried in the configuration information, such as frequency domain and time domain position, port configuration, resource mapping, etc.

[0410] In some embodiments, the TCI state corresponding to the first reference signal resource can be determined based on RRC. Optionally, the network device can configure one or more TCI states through RRC, and the one or more TCI states configured by RRC are taken as the TCI state corresponding to the first reference signal resource.

[0411] In some embodiments, the TCI state corresponding to the first reference signal resource is determined based on the first DCI. Optionally, the network device can indicate one or more TCI states through the first DCI, and the one or more indicated TCI states are taken as the TCI state corresponding to the first reference signal resource.

[0412] In some embodiments, the TCI state corresponding to the first reference signal resource is determined based on the joint / DL TCI state of the LTM cell switch command carried by the MAC CE. That is, when the RRC, the first DCI, and the MAC CE do not configure or indicate the TCI state corresponding to the first reference signal resource, the one or more TCI states corresponding to the first reference signal resource can be determined based on the joint / DL TCI state of the LTM cell switch command carried by the MAC CE.

[0413] In some embodiments, the TCI state corresponding to the first reference signal resource can be determined based on at least one of the RRC, the first DCI, and the MAC CE. In step S2106, the terminal performs CSI measurement on the first cell according to the first reference signal resource.

[0414] In some embodiments, the terminal performs CSI measurement on the first cell according to the CSI measurement configuration of the first cell using the first reference signal resource of the first cell to obtain the CSI report of the first cell.

[0415] In some embodiments, the terminal can perform CSI measurement on the first cell based on the first reference signal resource according to the CSI measurement configuration to obtain the CSI report of the first cell.

[0416] In step S2107, the terminal sends the CSI report of the first cell to the network device.

[0417] In some embodiments, the CSI report of the first cell can include at least one of the following information:

[0418] Precoding Matrix Indicator (PMI);

[0419] Rank Indicator (RI);

[0420] Channel Quality Indicator (CQI);

[0421] Layer Indicator (LI);

[0422] CSI-RS Resource Indicator (CRI).

[0423] In some embodiments, the terminal can determine at least one of the reporting type, the reporting content, the reporting frequency, and the reporting occasion of the CSI according to the configuration information, and report the CSI of the first cell to the network device. Optionally, the network device receives the CSI of the first cell reported by the terminal.

[0424] In some embodiments, the terminal can send the CSI of the first cell to the network device through a PUSCH.

[0425] In some embodiments, the terminal can send the CSI of the first cell to the network device corresponding to the serving cell through a PUSCH. That is, the terminal can report the CSI of the first cell before the handover, and accordingly, the network device receiving the CSI of the first cell is the network device corresponding to the serving cell. It can be understood that the serving cell is the cell sending the RRC and the first DCI to the terminal. The serving cell before the handover can also be referred to as the old serving cell.

[0426] In some embodiments, the terminal can send the CSI of the first cell to the network device corresponding to the first cell through a PUSCH. That is, the terminal can report the CSI of the first cell after the handover, and accordingly, the network device receiving the CSI 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 the new serving cell.

[0427] It can be understood that if the reference signal resource corresponding to the QCL source of the demodulation reference signal (DMRS) of the physical uplink shared channel (PUSCH) through which the terminal reports the CSI of the first cell is the reference signal resource of the old serving cell of the terminal, the terminal reports the CSI of the first cell to the old serving cell; if the reference signal resource corresponding to the QCL source is the reference signal resource of the new serving cell, the terminal reports the CSI of the first cell to the new serving cell.

[0428] In some embodiments, the terminal receives the DCI sent by the network device, determines the time-frequency resource of the PUSCH scheduled by the DCI, and sends the CSI of the first cell to the network device on the time-frequency resource of the PUSCH scheduled by the DCI. Optionally, the network device receives the CSI of the first cell reported by the terminal on the time-frequency resource of the PUSCH scheduled by the DCI. Optionally, the time-frequency resource of the PUSCH can include the position corresponding to the time-domain resource and / or the frequency-domain resource of the PUSCH.

[0429] In some embodiments, the terminal determines time-frequency resources of the PUSCH scheduled by the first DCI, and sends the CSI report of the first cell to the network device on the time-frequency resources of the PUSCH scheduled by the first DCI. Optionally, the network device receives the CSI report of the first cell reported by the terminal on the time-frequency resources of the PUSCH scheduled by the first DCI.

[0430] In some embodiments, the first DCI is a DCI that does not indicate time-frequency resources of the PUSCH, and the bit values of the second indication field of the first DCI are all set values. Optionally, the second indication field of the first DCI is all 0 and / or all 1. For example, when the second indication field is all 0, it can be indicated that the first DCI does not indicate the time-frequency resources of the PUSCH. For another example, when the second indication field is all 1, it can be indicated that the first DCI does not indicate the time-frequency resources of the PUSCH.

[0431] In some embodiments, the terminal receives the second DCI corresponding to the random access feedback in the random access process, determines time-frequency resources of the PUSCH scheduled by the second DCI, and sends the CSI report of the first cell to the network device on the time-frequency resources of the PUSCH scheduled by the second DCI. Optionally, the network device receives the CSI report of the first cell reported by the terminal on the time-frequency resources of the PUSCH scheduled by the second DCI.

[0432] In some embodiments, the terminal receives the second MAC CE carrying the LTM cell switch command sent by the network device, and monitors a search space of a target cell indicated by the second MAC CE in a case where it is determined that the second MAC CE includes a TA. In response to monitoring the third DCI sent by the target cell, the terminal determines time-frequency resources of the PUSCH scheduled by the third DCI. The terminal sends the CSI report of the first cell to the network device on the time-frequency resources of the PUSCH scheduled by the third DCI. Optionally, the network device receives the CSI report of the first cell reported by the terminal on the time-frequency resources of the PUSCH scheduled by the third DCI.

[0433] In some embodiments, the terminal reports the CSI report of the first cell to the network device through a Configured Grant (CG) PUSCH for LTM. Optionally, the network device receives the CSI report of the first cell on the CG PUSCH for LTM.

[0434] In some embodiments, the terminal receives a second MAC CE of a LTM cell switching command of a bearer sent by the network device, in a case that the second MAC CE includes a TA, receives an RRC sent by a target cell indicated by the second MAC CE, wherein the RRC includes configuration information of a CG PUSCH, and further reports a CSI report of the first cell to the network device according to the configuration information of the CG PUSCH.

[0435] In some embodiments, the configuration information of the CG PUSCH configured by the RRC can indicate a time-frequency resource of a PUSCH for reporting the CSI report of the first cell. Optionally, the terminal reports the CSI report of the first cell to the network device on the time-frequency resource of the PUSCH indicated by the configuration information of the CG PUSCH. Optionally, the network device receives the CSI report of the first cell reported by the terminal on the time-frequency resource of the PUSCH indicated by the configuration information.

[0436] In some embodiments, the terminal can report the CSI report of the first cell to the network device through a PUSCH of a message 3 in a 4-step random access procedure. Optionally, the network device receives the CSI report of the first cell reported by the terminal through the PUSCH of the message 3.

[0437] In some embodiments, the terminal can report the CSI report of the first cell to the network device through a PUSCH of a message A in a 2-step random access procedure. Optionally, the network device receives the CSI report of the first cell reported by the terminal through the PUSCH of the message A.

[0438] In some embodiments, the TCI state corresponding to the PUSCH for CSI reporting can be determined based on an RRC. Optionally, the network device can configure one or more TCI states through the RRC, and the one or more TCI states configured by the RRC are used as the TCI state corresponding to the PUSCH for CSI reporting.

[0439] In some embodiments, the TCI state corresponding to the PUSCH for CSI reporting can be determined based on a first DCI. Optionally, the network device can indicate one or more TCI states through the first DCI, and the indicated one or more TCI states are used as the TCI state corresponding to the PUSCH for CSI reporting.

[0440] In some embodiments, the TCI state corresponding to the PUSCH for CSI reporting can be determined based on a second DCI. Optionally, the network device can indicate one or more TCI states through the second DCI, and the indicated one or more TCI states are used as the TCI state corresponding to the PUSCH for CSI reporting.

[0441] In some embodiments, the TCI state of the PUSCH for CSI reporting is determined based on the joint / UL TCI state of the LTM cell switch command carried by the MAC CE, that is, in the case that the RRC, the first DCI, the second DCI, and the MAC CE do not configure or indicate the TCI state corresponding to the PUSCH for CSI reporting, the TCI state corresponding to the PUSCH for CSI reporting can be determined based on the joint / UL TCI state of the LTM cell switch command carried by the MAC CE.

[0442] In some embodiments, the TCI state of the PUSCH for CSI reporting is determined by the terminal itself, such as for a contention-based random access procedure, the terminal needs to determine by itself which SSB corresponds to the random access resource and the preamble for access, then for a 4-step random access procedure, the TCI state of the PUSCH in Msg 3 can be the same as or different from the TCI state of the random access preamble. For a 2-step random access procedure, the TCI state of the PUSCH in MsgA is the same as the TCI state of the random access preamble.

[0443] In some embodiments, the TCI state corresponding to the PUSCH for CSI reporting can be determined based on at least one of the above-mentioned RRC, first DCI, second DCI, MAC CE, and SSB determined by the terminal for determining the random access resource.

[0444] In some embodiments, when one TCI state is determined based on at least one of the above-mentioned RRC, first DCI, second DCI, MAC CE, and SSB determined by the terminal for determining the random access resource, the TCI state can be simultaneously used as the TCI state corresponding to the first reference signal resource and the TCI state corresponding to the PUSCH for CSI reporting. For example, one joint TCI state is used as the TCI state corresponding to the first reference signal resource and the TCI state corresponding to the PUSCH for CSI reporting.

[0445] In some embodiments, when the multiple TCI states are determined based on at least one of the above-mentioned RRC, first DCI, second DCI, MAC CE, and terminal-determined information for determining the SSB of the random access resource, the multiple TCI states can be partially as the TCI states corresponding to the first reference signal resource, and partially as the TCI states corresponding to the PUSCH for CSI reporting. For example, the DL TCI state in the multiple TCI states is as the TCI state corresponding to the first reference signal resource, and the UL TCI state in the multiple TCI states is as the TCI state corresponding to the PUSCH for CSI reporting.

[0446] In some embodiments, the TCI state corresponding to the PUSCH for CSI reporting and the TCI state corresponding to the first reference signal resource can be configured or indicated by different information fields of the above-mentioned information.

[0447] Optionally, the TCI state can also be referred to as at least one of a beam, spatial relation information, a transmission end spatial domain filter (Tx spatial domain filter), a reception end spatial filter (Rx spatial domain filter), a spatial domain parameter, a spatial domain setting, a quasi co-location assumption (QCL assumption), and the like.

[0448] In some embodiments, the terminal can also send the LTM cell handover completion information to the network device through the PUSCH. Optionally, the network device receives the LTM cell handover completion information sent by the terminal through the PUSCH.

[0449] In some embodiments, the LTM cell handover completion can include, but is not limited to, at least one of the following: completion of a random access procedure, completion of RRC connection establishment, completion of RRC connection re-establishment

[0450] In some embodiments, the terminal can report the CSI report of the first cell and the LTM cell handover completion information to the network device on the same PUSCH. Optionally, the network device can receive the CSI report of the first cell and the LTM cell handover completion information on the same PUSCH.

[0451] For example, the terminal can send the CSI report of the first cell and the RRC connection establishment completion information to the network device on the same PUSCH. That is, the network device can receive the CSI report of the first cell and the RRC connection establishment completion information on the same PUSCH.

[0452] In some embodiments, the terminal can obtain a plurality of PUSCHs, and determine a PUSCH for sending the CSI report of the first cell from the plurality of PUSCHs based on a pre-agreed principle.

[0453] In some embodiments, the terminal can prefer a PUSCH with the earliest arrival time. Alternatively, the terminal determines a first PUSCH with the earliest arrival time from the plurality of PUSCHs, and sends the CSI report of the first cell to the network device on the first PUSCH. It can be understood that sending the CSI report of the first cell on the PUSCH with the earliest arrival time can enable the network device to obtain the CSI report of the first cell as early as possible, and schedule data transmission for the terminal based on the CSI report.

[0454] In some embodiments, the terminal can prefer a PUSCH with the latest corresponding configuration signaling. Alternatively, the terminal determines a second PUSCH with the latest corresponding configuration signaling from the plurality of PUSCHs, and sends the CSI report of the first cell to the network device on the second PUSCH. It can be understood that using the PUSCH resource with the latest corresponding configuration signaling is to consider that the network device updates the configuration information of the PUSCH for sending the CSI report of the first cell in time, and to ensure that the CSI report of the first cell is transmitted by using a more suitable PUSCH resource.

[0455] In some embodiments, the terminal can prefer a PUSCH with the earliest arrival time and the latest corresponding configuration information from the plurality of PUSCHs, to send the CSI report of the first cell to the network device. In some embodiments, the first PUSCH and the second PUSCH need to be PUSCHs after the first CSI measurement is completed. That is, the first PUSCH is a PUSCH with the earliest arrival time from the PUSCHs that arrive after the first cell completes the CSI measurement. The second PUSCH is a PUSCH with the latest corresponding configuration signaling from the PUSCHs after the first cell completes the CSI measurement.

[0456] In some embodiments, when the first PUSCH and / or the second PUSCH is PUSCH in a random access procedure, the first PUSCH and / or the second PUSCH needs to be a contention free PUSCH corresponding to the random access procedure. If the random access procedure is a contention based random access procedure, the PUSCH in Msg 3 or Msg A cannot be used to carry the CSI report. Wherein, whether the random access procedure is a contention free random access can be determined based on whether the preamble and the random access resource are provided in the LTM cell switch command when the value of the TA is not provided. If the value of the TA is not provided in the LTM cell switch command, but the preamble and / or the random access resource is provided, it is determined that the random access procedure is a contention free random access. In this case, the first DCI can not configure the time-frequency resource of the PUSCH for reporting the CSI report of the first cell. If the value of the TA is not provided in the LTM cell switch command, but the preamble and / or the random access resource is not provided, it is determined that the random access procedure is a contention based random access. In this case, the first DCI can configure the time-frequency resource of the PUSCH for reporting the CSI report of the first cell.

[0457] It can be understood that only one of the two ways of reporting the CSI report through the time-frequency resource of the PUSCH scheduled by the DCI and through the PUSCH of the message 3 in the 4-step random access procedure needs to be selected for execution; only one of the two ways of reporting the CSI report through the time-frequency resource of the PUSCH scheduled by the DCI and through the PUSCH of the message A in the 2-step random access procedure needs to be selected for execution.

[0458] In some embodiments, the PUSCH of the message 3 in the 4-step random access procedure is earlier than the PUSCH scheduled by the first DCI, and the terminal reports the CSI report based on the time-frequency resource of the PUSCH of the message 3 in the 4-step random access procedure.

[0459] In some embodiments, the PUSCH of the message A in the 2-step random access procedure is earlier than the PUSCH scheduled by the first DCI, and the terminal reports the CSI report based on the time-frequency resource of the PUSCH of the message A in the 2-step random access procedure.

[0460] The communication method related to the embodiments of the present disclosure can include at least one of steps S2101-S2107. For example, step S2103 can be implemented as an independent embodiment, step S2104 can be implemented as an independent embodiment, steps S2103+S2104 can be implemented as an independent embodiment, steps S2103+S2104+S2105 can be implemented as an independent embodiment, steps S2101+S2102+S2103+S2104+S2105 can be implemented as an independent embodiment, but the present disclosure is not limited thereto.

[0461] In the embodiments or examples, each step can be independently, arbitrarily combined or exchanged in sequence, and optional modes or examples can be arbitrarily combined, without contradiction, and can be arbitrarily combined with any step of other embodiments or other examples.

[0462] 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 or during the handover, so that the CSI report of the first cell can be obtained in time, and when the first cell becomes the 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.

[0463] FIG. 2B is an interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 2B, the embodiments of the present disclosure relate to a communication method for a communication system 100, in which the first information can include RRC and a first MAC CE, and the above method includes:

[0464] In step S2201, the network device sends RRC to the terminal.

[0465] In some embodiments, the RRC is used to configure a first correspondence relationship between the trigger state and the report configuration ID, and / or a second correspondence relationship between the report configuration ID and the configuration information of the reference signal resource.

[0466] 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 described here.

[0467] In step S2202, the network device sends the first MAC CE to the terminal.

[0468] In some embodiments, the first MAC CE can be a second MAC CE carrying the LTM cell handover command.

[0469] In some embodiments, the first MAC CE can be a different MAC CE from the second MAC CE.

[0470] At step S2203, the terminal triggers at least one first reporting configuration ID of the first cell as the first reporting ID according to the first MAC CE. In some embodiments, the terminal triggers at least one first reporting configuration ID of the first cell according to the indication of the first MAC CE.

[0471] In some embodiments, the triggered first reporting configuration ID can be a CSI reporting configuration ID corresponding to the first cell.

[0472] In some embodiments, the triggered first reporting configuration ID can be a LTM-CSI reporting configuration ID corresponding to the first cell.

[0473] At step S2204, the terminal determines configuration information of reference signal resources corresponding to the first reporting ID as the configuration information of the first reference signal resources according to the second correspondence relationship.

[0474] In some embodiments, the RRC can be used to configure multiple reporting configuration IDs of the first cell, and the first MAC CE is used to trigger at least one first reporting configuration ID of the first cell.

[0475] In some embodiments, one or more bits in the third indication field of the second MAC CE correspond to the reporting configuration ID, which can optionally be one-to-one correspondence between the bit and the reporting configuration ID, that is, N bits correspond to N reporting configuration IDs. Alternatively, N bits can correspond to M reporting configuration IDs. For example, one bit can correspond to multiple reporting configuration IDs, which can be an ID set, and one bit is used to indicate one ID set. When the value of a certain bit is a first value, it means that the reporting configuration ID corresponding to the bit is activated.

[0476] In some embodiments, the first value can be "1", or the first value can also be "0".

[0477] After obtaining the third indication field in the first MAC CE, the terminal can determine the reporting configuration ID corresponding to the bit with the first value as the first reporting ID. Alternatively, based on the second correspondence relationship given by the RRC, the configuration information of the reference signal resources corresponding to the activated first reporting ID is determined as the configuration information of the first reference signal resources.

[0478] In a case that the bit in the third indication field corresponds to the report configuration ID one by one, exemplary illustration, the report configuration ID includes report configuration ID1, report configuration ID2, report configuration ID3, report configuration ID4 and report configuration ID5. The configuration information of the reference signal resource can include configuration information A, configuration information B, configuration information C, configuration information D and configuration information E. The report configuration ID1 to the report configuration ID5 correspond to the configuration information A to the configuration information E respectively.

[0479] The third indication field can include 5 bit positions, and the 5 bit positions correspond to the report configuration ID1 to the report configuration ID5 respectively. If the value of the bit position 2 is "1", it can be determined that the report configuration ID2 can be activated, and then the report configuration ID2 can be taken as the first report ID, and the configuration information B corresponding to the report configuration ID2 can be taken as the configuration information of the first reference signal resource. It can be understood that the values of the bit position 1 and the bit position 2 on the third indication field are "1", which can determine that the report configuration ID1 and the report configuration ID2 are activated, and then the configuration information A corresponding to the report configuration ID1 and the configuration information B corresponding to the report configuration ID2 can be taken as the configuration information of the first reference signal resource.

[0480] In a case that the N bit positions in the third indication field correspond to the M report configuration IDs, exemplary illustration, for example, the third indication field includes 3 bit positions, and optionally, the bit position 1 corresponds to the report configuration ID1 and the report configuration ID2, the bit position 2 corresponds to the report configuration ID3 and the 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 report configuration ID1 and the report configuration ID2 are the first report ID, and the configuration information A corresponding to the report configuration ID1 and the configuration information B corresponding to the report configuration ID2 are determined as the configuration information of the first reference signal resource.

[0481] In a case that the N bit positions in the third indication field correspond to the M report configuration IDs, exemplary illustration, for example, the third indication field includes 3 bit positions, and optionally, the bit position 1 corresponds to the report configuration ID1 and the report configuration ID2, the bit position 2 corresponds to the report configuration ID3 and the 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 report configuration ID1 and the report configuration ID2 are the first report ID, and the configuration information A corresponding to the report configuration ID1 and the configuration information B corresponding to the report configuration ID2 are determined as the configuration information of the first reference signal resource.

[0482] The optional implementation of step S2205 can refer to the optional implementation of step S2105 of FIG. 2A and other associated parts in the embodiments involved in FIG. 2A, which will not be described here.

[0483] The optional implementation of step S2206 can refer to the optional implementation of step S2106 of FIG. 2A and other associated parts in the embodiments involved in FIG. 2A, which will not be described here.

[0484] The optional implementation of step S2206 can refer to the optional implementation of step S2106 of FIG. 2A and other associated parts in the embodiments involved in FIG. 2A, which will not be described here.

[0485] In some embodiments, the TCI state corresponding to the first reference signal resource can be determined based on RRC. Optionally, the network device can configure one or more TCI states through RRC, and the one or more TCI states configured through RRC are the TCI states corresponding to the first reference signal resource.

[0486] In some embodiments, the TCI state corresponding to the first reference signal resource is determined based on DCI. Optionally, the network device can indicate one or more TCI states through DCI, and the indicated one or more TCI states are the TCI states corresponding to the first reference signal resource. Optionally, the DCI is used to indicate the TCI state. Optionally, the DCI used to indicate the TCI state corresponding to the first reference signal resource is different from the first DCI and the second DCI.

[0487] In some embodiments, the TCI state corresponding to the first reference signal resource is determined based on the first MAC CE. Optionally, the network device can indicate one or more TCI states through the first MAC CE, and the indicated one or more TCI states are the TCI states corresponding to the first reference signal resource.

[0488] In some embodiments, the TCI state corresponding to the first reference signal resource is determined based on the joint / DL TCI state of the LTM cell switch command carried by the MAC CE. That is, in the case that the TCI state corresponding to the first reference signal resource is not configured or indicated by the RRC, the DCI, and the first MAC CE, the one or more TCI states of the first reference signal resource can be determined based on the joint / DL TCI state of the LTM cell switch command carried by the MAC CE.

[0489] In some embodiments, the TCI state corresponding to the first reference signal resource can be determined based on at least one of the RRC, the DCI, and the MAC CE.

[0490] Step S2207: The terminal sends a CSI report of the first cell to the network device.

[0491] The optional implementation of step S2207 can refer to the optional implementation of step S2107 in FIG. 2A and other associated parts in the embodiments involved in FIG. 2A, which will not be described here.

[0492] In some embodiments, the TCI state corresponding to the PUSCH for CSI reporting can be determined based on RRC, optionally, the network device can configure one or more TCI states through RRC, and the one or more TCI states configured by RRC are taken as the TCI state corresponding to the PUSCH for CSI reporting.

[0493] In some embodiments, the TCI state corresponding to the PUSCH for CSI reporting can be determined based on DCI, optionally, the network device can indicate one or more TCI states through DCI, and the indicated one or more TCI states are taken as the TCI state corresponding to the PUSCH for CSI reporting. Optionally, the DCI is used to indicate the TCI state. Optionally, the DCI used to indicate the TCI state corresponding to the PUSCH for CSI reporting is different from the first DCI and the second DCI described above.

[0494] In some embodiments, the TCI state corresponding to the PUSCH for CSI reporting can be determined based on the first MAC CE, optionally, the network device can indicate one or more TCI states through the first MAC CE, and the indicated one or more TCI states are taken as the TCI state corresponding to the PUSCH for CSI reporting.

[0495] In some embodiments, the TCI state of the PUSCH for CSI reporting is determined based on the joint / UL TCI state of the LTM cell switch command carried by the MAC CE, that is, in the case where the TCI state corresponding to the PUSCH for CSI reporting is not configured or indicated by the RRC, the DCI and the first MAC CE described above, the one or more TCI states of the PUSCH for CSI reporting can be determined based on the joint / UL TCI state of the LTM cell switch command carried by the MAC CE.

[0496] In some embodiments, the TCI state of the PUSCH for CSI reporting is determined by the terminal itself, such as for a contention-based random access procedure, the terminal needs to determine by itself which SSB corresponds to the random access resource and the preamble for access, then for a 4-step random access procedure, the TCI state of the PUSCH in Msg 3 can be the same as or different from the TCI state of the random access preamble. For a 2-step random access procedure, the TCI state of the PUSCH in MsgA is the same as the TCI state of the random access preamble.

[0497] In some embodiments, the TCI state corresponding to the PUSCH for CSI reporting can be determined based on at least one of the above-mentioned RRC, DCI, MAC CE, and SSB determined by the terminal for determining the random access resource.

[0498] In some embodiments, when one TCI state is determined based on at least one of the above-mentioned RRC, DCI, MAC CE, and SSB determined by the terminal for determining the random access resource, the TCI state can be simultaneously used as the TCI state corresponding to the first reference signal resource and the TCI state corresponding to the PUSCH for CSI reporting. For example, one joint TCI state is used as the TCI state corresponding to the first reference signal resource and the TCI state corresponding to the PUSCH for CSI reporting.

[0499] In some embodiments, when multiple TCI states are determined based on at least one of the above-mentioned RRC, DCI, MAC CE, and SSB determined by the terminal for determining the random access resource, the multiple TCI states can be partially used as the TCI state corresponding to the first reference signal resource and partially used as the TCI state corresponding to the PUSCH for CSI reporting. For example, the DL TCI state in the multiple TCI states is used as the TCI state corresponding to the first reference signal resource, and the UL TCI state in the multiple TCI states is used as the TCI state corresponding to the PUSCH for CSI reporting.

[0500] In some embodiments, the TCI state corresponding to the PUSCH for CSI reporting and the TCI state corresponding to the first reference signal resource can be configured or indicated by different information fields of the above-mentioned information.

[0501] Optionally, the TCI state can also be referred to as at least one of beam, spatialrelationinfo, Txspatialdomainfilter, Rxspatialdomainfilter, spatialdomainparameter, spatialdomainsetting, QCLassumption, etc.

[0502] The communication method related to the embodiments of the present disclosure can include at least one of steps S2201-S2207. For example, step S2202 can be implemented as an independent embodiment, step S2203 can be implemented as an independent embodiment, step 2204 can be implemented as an independent embodiment, steps S2203+S2204 can be implemented as an independent embodiment, steps S2202+S2203+S2204 can be implemented as an independent embodiment, steps S2201+S2202+S2203+S2204+S2205 can be implemented as an independent embodiment, but not limited thereto.

[0503] In the present embodiment or example, each step can be independently combined or exchanged in order, optional modes or examples can be combined, and any step of other embodiments or other examples can be combined without contradiction.

[0504] 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.

[0505] FIG. 2C is an interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 2C, the embodiments of the present disclosure relate to a communication method for a communication system 100, in which the first information can include a second MAC CE, RRC and a second DCI, and the above method includes:

[0506] In step S2301, the network device sends a second MAC CE carrying a LTM cell handover command to the terminal.

[0507] In some embodiments, the second MAC CE includes at least one of the following information:

[0508] Target configuration ID, at least for determining the target cell ID;

[0509] TA;

[0510] TCIStateID;

[0511] Random access preamble index;

[0512] SSBindex;

[0513] PRACH maskindex.

[0514] Step S2302, the terminal randomly accesses the target cell of the terminal.

[0515] In some embodiments, the second MAC CE can indicate the value of the TA.

[0516] In some embodiments, the second MAC CE can not indicate the value of the TA.

[0517] In some embodiments, the terminal can initiate a random access procedure to the target cell to switch to the target cell in the case that the terminal determines that the second MAC CE does not indicate the value of the TA. Optionally, the terminal can initiate a 4-step random access procedure to the target cell, which can include the following steps: message 1: the terminal sends a random access preamble on PRACH; message 2: the base station sends a random access feedback; message 3: the terminal sends contention resolution information or other information such as CSI report on the PUSCH resource indicated in message 2; message 4: the base station sends contention resolution completion information or random access completion information.

[0518] In some embodiments, the terminal is not configured with a UE-based TA measurement function.

[0519] Step S2303, the network device sends a second DCI corresponding to the random access feedback in the random access procedure to the terminal.

[0520] In some embodiments, the network device can indicate the first report of the target cell to be triggered in the second DCI corresponding to the random access feedback in the random access procedure.

[0521] In some embodiments, the random access feedback can be message 2 in the 4-step random access procedure. That is, the network device sends the random access feedback to the terminal through the second DCI.

[0522] Step S2304, the terminal triggers the first report of the target cell according to the second DCI.

[0523] In some embodiments, the first report of the target cell indicated by the second MAC CE is triggered in the CSI request or other fields in the second DCI.

[0524] In some embodiments, the first report can be a CSI report of the target cell.

[0525] In some embodiments, the target cell corresponds to one report configuration identifier, and the second DCI can indicate triggering of the report of the target cell by one bit.

[0526] In some embodiments, when the target cell corresponds to multiple report configuration identifiers, and the first report cannot be triggered by the one bit of the second DCI, the RRC can be used to determine the first report of the target cell that needs to be triggered.

[0527] In some embodiments, when the target cell is configured with multiple report configuration identifiers, the terminal receives the RRC sent by the network device, and determines the first report from the multiple report configuration identifiers of the target cell according to the RRC. Optionally, the RRC can indicate the ID of a certain report configuration of the multiple report configuration identifiers, and the report corresponding to the report configuration ID is the triggered first report.

[0528] In some embodiments, when the target cell is configured with multiple report configuration identifiers, the terminal determines the minimum report configuration ID or the protocol-agreed report configuration ID from the multiple report configuration identifiers of the target cell as the first report.

[0529] Step S2305: The network device sends an RRC to the terminal.

[0530] In some embodiments, the RRC is used to configure a third correspondence relationship between a report configuration and a reference signal resource.

[0531] In some embodiments, different report configurations can correspond to different reference signal resources.

[0532] In some embodiments, different report configurations can correspond to different reference signal resources.

[0533] In some embodiments, N report configurations can correspond to M reference signal resources.

[0534] Step S2306: The terminal determines the first reference signal resource corresponding to the first report according to the third correspondence relationship.

[0535] For example, report configuration 1 to report configuration 5 correspond to reference signal resource A to reference signal resource E respectively. When it is determined that the first report is report configuration 3, the reference signal resource C corresponding to report configuration 3 can be determined as the first reference signal resource.

[0536] Report configuration 1 corresponds to reference signal resource A and reference signal resource B, report configuration 2 corresponds to reference signal resource C and reference signal resource D, and report configuration 3 corresponds to reference signal resource E. When it is determined that the first report is report configuration 2, the reference signal resource C and the reference signal resource D can be determined as the first reference signal resource.

[0537] Step S2307. The terminal performs CSI measurement on the first cell according to the first reference signal resource.

[0538] The optional implementation of step S2207 can refer to the optional implementation of step S2106 in FIG. 2A and other associated parts in the embodiments involved in FIG. 2A, which will not be repeated here.

[0539] In some embodiments, the TCI state corresponding to the first reference signal resource can be determined based on RRC. Optionally, the network device can configure one or more TCI states through RRC, and the one or more TCI states configured by RRC are the TCI state corresponding to the first reference signal resource.

[0540] In some embodiments, the TCI state corresponding to the first reference signal resource is determined based on DCI. Optionally, the network device can indicate one or more TCI states through DCI, and the indicated one or more TCI states are the TCI state corresponding to the first reference signal resource. Optionally, the DCI used to indicate the TCI state corresponding to the first reference signal resource is different from the first DCI and the second DCI.

[0541] In some embodiments, the TCI state corresponding to the first reference signal resource is determined based on the joint / DL TCI state of the LTM cell switch command carried by the MAC CE, that is, in the case where the RRC and the DCI do not configure or indicate the TCI state corresponding to the first reference signal resource, the one or more TCI states of the first reference signal resource can be determined based on the joint / DL TCI state of the LTM cell switch command carried by the MAC CE.

[0542] In some embodiments, the TCI state corresponding to the first reference signal resource can be determined based on at least one of the RRC, the DCI, and the MAC CE.

[0543] Step S2308. The terminal reports the CSI report of the first cell to the network device.

[0544] The optional implementation of step S2308 can refer to the optional implementation of step S2107 in FIG. 2A and other associated parts in the embodiments involved in FIG. 2A, which will not be repeated here.

[0545] In some embodiments, the TCI state corresponding to the PUSCH for CSI reporting can be determined based on RRC. Optionally, the network device can configure one or more TCI states through RRC, and the one or more TCI states configured by RRC are the TCI states corresponding to the PUSCH for CSI reporting.

[0546] In some embodiments, the TCI state corresponding to the PUSCH for CSI reporting can be determined based on DCI. Optionally, the network device can indicate one or more TCI states through DCI, and the indicated one or more TCI states are the TCI states corresponding to the PUSCH for CSI reporting. The DCI is used to indicate the indicated TCI state. Optionally, the DCI indicating the TCI state corresponding to the PUSCH for CSI reporting is different from the first DCI and the second DCI described above.

[0547] In some embodiments, the TCI state of the PUSCH for CSI reporting is determined based on the joint / UL TCI state of the LTM cell switch command carried by the MAC CE, that is, in the case where the RRC and the DCI described above do not configure or indicate the TCI state corresponding to the PUSCH for CSI reporting, the one or more TCI states of the PUSCH for CSI reporting are determined based on the joint / UL TCI state of the LTM cell switch command carried by the MAC CE.

[0548] In some embodiments, the TCI state of the PUSCH for CSI reporting is determined by the terminal itself. For example, for a contention-based random access procedure, the terminal needs to determine by itself which SSB corresponds to the random access resource and the preamble for access. For a 4-step random access procedure, the TCI state of the PUSCH in Msg 3 can be the same as or different from the TCI state of the random access preamble. For a 2-step random access procedure, the TCI state of the PUSCH in Msg A is the same as the TCI state of the random access preamble.

[0549] In some embodiments, the TCI state corresponding to the PUSCH for CSI reporting can be determined based on at least one of the RRC, the DCI, the MAC CE, and the SSB used to determine the random access resource determined by the terminal.

[0550] In some embodiments, when one TCI state is determined based on at least one of the above-mentioned RRC, DCI, MAC CE and terminal-determined information for determining the SSB of the random access resource, the TCI state can be simultaneously used as the TCI state corresponding to the first reference signal resource and the TCI state corresponding to the PUSCH for CSI reporting. For example, one jointTCI state is used as the TCI state corresponding to the first reference signal resource and the TCI state corresponding to the PUSCH for CSI reporting.

[0551] In some embodiments, when multiple TCI states are determined based on at least one of the above-mentioned RRC, DCI, MAC CE and terminal-determined information for determining the SSB of the random access resource, the multiple TCI states can be partially used as the TCI state corresponding to the first reference signal resource and partially used as the TCI state corresponding to the PUSCH for CSI reporting. For example, the DL TCI state in the multiple TCI states is used as the TCI state corresponding to the first reference signal resource, and the UL TCI state in the multiple TCI states is used as the TCI state corresponding to the PUSCH for CSI reporting.

[0552] In some embodiments, the TCI state corresponding to the PUSCH for CSI reporting and the TCI state corresponding to the first reference signal resource can be configured or indicated by different information fields of the above-mentioned information.

[0553] Optionally, the TCI state can also be referred to as at least one of beam, spatialrelationinfo, Txspatialdomainfilter, Rxspatialdomainfilter, spatialdomainparameter, spatialdomainsetting, QCLassumption, etc.

[0554] The communication method related to the embodiments of the present disclosure can include at least one of steps S2301-S2308. For example, step S2303 can be implemented as an independent embodiment, step S2304 can be implemented as an independent embodiment, step S2306 can be implemented as an independent embodiment, steps S2303+S2304+S2306 can be implemented as an independent embodiment, steps S2303+S2304+S2305 can be implemented as an independent embodiment, steps S2301+S2302+S2303+S2304+S2305 can be implemented as an independent embodiment, but not limited thereto.

[0555] In the embodiments or examples, each step can be independent, arbitrarily combined or exchanged in sequence, the optional mode or optional example can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other examples, without contradiction.

[0556] In the above examples, 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 the 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.

[0557] FIG. 2D is an interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 2D, the embodiment of the present disclosure relates to a communication method for the communication system 100, and the above method comprises:

[0558] In step S2401, the network device sends first information to the terminal.

[0559] In some embodiments, the first information can include at least one of RRC, MAC CE and DCI.

[0560] In step S2402, the first report ID is determined according to the first information.

[0561] The optional implementation of step S2402 can refer to the related step optional implementation of FIGS. 2A-2C and other associated parts in the embodiments related to FIGS. 2A-2C, which will not be repeated here.

[0562] In step S2403, the configuration information of the first reference signal resource is determined according to the first report ID.

[0563] The optional implementation of step S2403 can refer to the related step optional implementation of FIGS. 2A-2C and other associated parts in the embodiments related to FIGS. 2A-2C, which will not be repeated here.

[0564] In step S2404, the first reference signal resource is determined according to the configuration information.

[0565] The optional implementation of step S2404 can refer to the related step optional implementation of FIGS. 2A-2C and other associated parts in the embodiments related to FIGS. 2A-2C, which will not be repeated here.

[0566] In step S2405, the terminal performs CSI measurement on the first cell according to the first reference signal resource.

[0567] The optional implementation of step S2405 can refer to the optional implementation of step S2108 in FIG. 2A and other associated parts in the embodiments related to FIG. 2A, which will not be repeated here.

[0568] In step S2406, the terminal reports the CSI report of the first cell to the network device.

[0569] The optional implementation of step S2406 can refer to the optional implementation of step S2107 in FIG. 2A and other associated parts in the embodiments related to FIG. 2A, which will not be repeated here.

[0570] The communication method related to the embodiments of the present disclosure can include at least one of steps S2401-S2406. For example, step S2402 can be implemented as an independent embodiment, step S2403 can be implemented as an independent embodiment, steps S2402+S2403 can be implemented as an independent embodiment, steps S2402+S2403+S2404 can be implemented as an independent embodiment, steps S2402+S2403+S2404+S2405 can be implemented as an independent embodiment, but not limited thereto.

[0571] In the present embodiment or example, each step can be independently combined or exchanged in order, and the optional mode or optional example can be combined with any step of other embodiments or other examples.

[0572] In the above embodiments, in the case where the first cell is not the 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 the 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.

[0573] FIG. 3A is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 3A, the present embodiment relates to a communication method for a terminal, and the above method comprises:

[0574] In step S3101, an RRC is received.

[0575] In step S3102, a first DCI is received.

[0576] In step S3103, a corresponding first report configuration ID is determined as a first report ID according to the first code point.

[0577] At step S3104, configuration information of the reference signal resource corresponding to the first report ID is determined according to the second correspondence relationship as the configuration information of the first reference signal resource.

[0578] At step S3105, the first reference signal resource is determined according to the configuration information of the first reference signal resource.

[0579] At step S3106, the CSI measurement is performed on the first cell according to the first reference signal resource.

[0580] At step S3107, the CSI report of the first cell is sent.

[0581] Details of steps S3101-S3107 can be referred to the descriptions of the above embodiments.

[0582] The communication method related to the embodiments of the present disclosure can include at least one of steps S3101-S3107. For example, step S3103 can be implemented as an independent embodiment, step S3104 can be implemented as an independent embodiment, steps S3103+S3104 can be implemented as an independent embodiment, steps S3103+S3104+S3105 can be implemented as an independent embodiment, steps S3101+S3102+S3103+S3104+S3105 can be implemented as an independent embodiment, but not limited thereto.

[0583] 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.

[0584] 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.

[0585] 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:

[0586] At step S3201, the RRC is received.

[0587] At step S3202, the first MAC CE is received.

[0588] At step S3203, at least one first report configuration ID of the first cell is triggered according to the first MAC CE as the first report ID.

[0589] At step S3204, according to the second correspondence relationship, configuration information of the reference signal resource corresponding to the first report ID is determined as the configuration information of the first reference signal resource.

[0590] At step S3205, the first reference signal resource is determined according to the configuration information.

[0591] At step S3206, the CSI measurement is performed on the first cell according to the first reference signal resource.

[0592] At step S3207, the CSI report of the first cell is sent.

[0593] Details of steps S3201-S3207 can be referred to the descriptions of the above embodiments.

[0594] The communication method related to the embodiments of the present disclosure can include at least one of steps S3201-S3207. For example, step S3202 can be implemented as an independent embodiment, step S3203 can be implemented as an independent embodiment, step 3204 can be implemented as an independent embodiment, steps S3203+S3204 can be implemented as an independent embodiment, steps S3202+S3203+S3204 can be implemented as an independent embodiment, steps S3201+S3202+S3203+S3204+S3205 can be implemented as an independent embodiment, but not limited thereto.

[0595] In the present embodiment or example, each step can be independently, arbitrarily combined or exchanged in order, and optional modes or examples can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other examples.

[0596] FIG. 3C is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 3C, the embodiments of the present disclosure relate to a communication method for a terminal, and the above method comprises:

[0597] At step S3301, a second MAC CE carrying an LTM cell handover command is received.

[0598] At step S3302, a target cell of the terminal is randomly accessed.

[0599] At step S3303, a second DCI corresponding to random access feedback in a random access process is received.

[0600] At step S3304, a first report of the target cell is triggered according to the second DCI.

[0601] At step S3305, an RRC is received.

[0602] Step S3306, determining the first reference signal resource corresponding to the first report according to the third correspondence.

[0603] Step S3307, performing CSI measurement on the first cell according to the first reference signal resource.

[0604] Step S3308, sending the CSI report of the first cell.

[0605] The detailed description of steps S3301-S3305 can refer to the description of the above embodiments.

[0606] The communication method related to the embodiments of the present disclosure can include at least one of steps S3301-S3308. For example, step S3303 can be implemented as an independent embodiment, step S3304 can be implemented as an independent embodiment, step S3306 can be implemented as an independent embodiment, steps S3303+S3304+S3306 can be implemented as an independent embodiment, steps S3303+S3304+S3305 can be implemented as an independent embodiment, steps S3301+S3302+S3303+S3304+S3305 can be implemented as an independent embodiment, but not limited thereto.

[0607] In the present embodiment or example, each step can be independently, arbitrarily combined or exchanged in order, and the optional mode or optional example can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other examples.

[0608] FIG. 3D is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 3D, the embodiments of the present disclosure relate to a communication method for a terminal, and the above method comprises:

[0609] Step S3401, receiving first information.

[0610] Step S3402, determining a first report ID according to the first information.

[0611] Step S3403, determining configuration information of a first reference signal resource according to the first report ID.

[0612] Step S3404, determining the first reference signal resource according to the configuration information of the first reference signal resource.

[0613] Step S3405, performing CSI measurement on the first cell according to the first reference signal resource.

[0614] Step S3406, sending the CSI report of the first cell.

[0615] The detailed description of steps S3401-S3406 can refer to the above embodiment description.

[0616] The communication method related to the embodiments of the present disclosure can include at least one of steps S3401-S3406. For example, step S3402 can be implemented as an independent embodiment, step S3403 can be implemented as an independent embodiment, steps S3402+S3403 can be implemented as an independent embodiment, steps S3402+S3403+S3404 can be implemented as an independent embodiment, steps S3402+S3403+S3404+S3405 can be implemented as an independent embodiment, but not limited thereto.

[0617] In the present embodiment or example, each step can be independently, arbitrarily combined or exchanged in order, and optional modes or examples can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other examples.

[0618] 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:

[0619] Step S3501, determining a first report according to first information.

[0620] Step S3502, determining a first reference signal resource according to the first report, the first reference signal resource being used for CSI measurement on a first cell, the first cell not being a serving cell of the terminal.

[0621] In some embodiments, determining the first reference signal resource according to the first report comprises:

[0622] According to the first information, determining the first report identification ID;

[0623] According to the first report ID, determining configuration information of the first reference signal resource;

[0624] According to the configuration information, determining the first reference signal resource.

[0625] In some embodiments, the determining the first report ID according to the first information comprises:

[0626] According to the first information, determining a triggered report configuration ID as the ID of the first report; or

[0627] According to the first information, determining a first trigger state, and determining the first report ID according to the first trigger state.

[0628] In some embodiments, the first information comprises at least one of the following information: RRC, DCI and first MAC CE.

[0629] In some embodiments, the configuration information of the first reference signal resource is contained in at least one of the following information:

[0630] reporting configuration of CSI;

[0631] LTM-CSI reporting configuration.

[0632] In some embodiments, the first reference signal resource is at least one of the following reference signal resource:

[0633] The first reference signal resource is a reference signal resource corresponding to the first cell;

[0634] 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.

[0635] In some embodiments, the method further comprises at least one of the following:

[0636] receiving RRC sent by the network device, the RRC being used to configure at least one of the following: a first correspondence relationship between a triggering state and a reporting configuration ID, and a second correspondence relationship between a reporting configuration ID and configuration information of a reference signal resource;

[0637] receiving first DCI sent by the network device, the first DCI comprising a first code point, determining a first reporting configuration ID corresponding to the first code point as the first reporting ID;

[0638] determining, according to the second correspondence relationship, configuration information of a reference signal resource corresponding to the first reporting ID as the configuration information of the first reference signal resource.

[0639] determining a first triggering state corresponding to the first code point, and determining, according to the first correspondence relationship, a first reporting configuration ID corresponding to the first triggering state; or,

[0640] The RRC is further used to configure a reporting configuration ID list, and the first reporting configuration ID corresponding to the first code point is determined based on a protocol agreement from the reporting configuration ID list.

[0641] In some embodiments, the configuration information of the first reference signal resource is included in a reporting configuration corresponding to the LTM CSI reporting configuration ID, the LTM CSI reporting configuration ID corresponding to the first list; or the configuration information of the first reference signal resource is included in a reporting configuration corresponding to the CSI reporting configuration ID, the CSI reporting configuration ID corresponding to the second list.

[0642] The LTM CSI reporting configuration ID is used for CSI measurement configuration of the first cell, and the CSI reporting configuration ID is used for CSI measurement configuration of a serving cell of the terminal. The first list is different from the second list.

[0643] In some embodiments, the method further comprises:

[0644] The first DCI includes a first indication field. According to the value of the bit in the first indication field, the list triggered by the first DCI is determined from the first list and the second list.

[0645] In some embodiments, the first DCI is sent by a serving cell of the terminal, and is sent before a second MAC CE carrying an LTM cell handover command, or is sent within a set time interval after the second MAC CE is sent, or is sent before HARQ ACK / NACK feedback corresponding to the second MAC CE.

[0646] In some embodiments, the second MAC CE includes at least one of the following information:

[0647] A target configuration ID, used at least to determine a target cell ID;

[0648] TA;

[0649] TCI state ID;

[0650] Random access preamble index;

[0651] SSB index;

[0652] PRACH mask index.

[0653] In some embodiments, the method further comprises:

[0654] Receiving a second MAC CE carrying an LTM cell handover command sent by the network device;

[0655] In response to the second MAC CE not indicating TA, randomly accessing a target cell of the terminal;

[0656] receive a second DCI corresponding to random access feedback in a random access procedure, the second DCI being used to trigger a first report of the target cell.

[0657] In some embodiments, the method comprises at least one of:

[0658] receive an RRC sent by the network device, the RRC being used to configure at least one of a first correspondence relationship between a trigger state and a report configuration ID, and a second correspondence relationship between a report configuration ID and configuration information of a reference signal resource;

[0659] receive a first MAC CE sent by the network device, and trigger at least one second report configuration ID of the first cell as the first report ID according to the first MAC CE;

[0660] determine configuration information of a reference signal resource corresponding to the first report ID as the configuration information of the first reference signal resource according to the second correspondence relationship.

[0661] In some embodiments, the first MAC CE is one of the following MAC CEs:

[0662] a second MAC CE carrying an LTM cell switching command;

[0663] a MAC CE different from the second MAC CE.

[0664] In some embodiments, the method further comprises:

[0665] report a CSI report of the first cell to the network device.

[0666] In some embodiments, the method further comprises:

[0667] report a CSI report of the first cell to the network device through a physical uplink shared channel (PUSCH).

[0668] In some embodiments, the method further comprises:

[0669] determine a time-frequency resource of the PUSCH scheduled by the DCI, and report a CSI report of the first cell to the network device on the time-frequency resource.

[0670] In some embodiments, the determination of the time-frequency resource of the PUSCH scheduled by the DCI comprises:

[0671] determination of a time-frequency resource of the PUSCH scheduled by a first DCI; or

[0672] determining time-frequency resources of the PUSCH scheduled by the second DCI corresponding to the random access feedback.

[0673] In some embodiments, the determining the time-frequency resources of the PUSCH scheduled by the DCI comprises:

[0674] receiving a second MAC CE carrying a LTM cell switch command sent by the network device;

[0675] monitoring a search space of a target cell indicated by the second MAC CE;

[0676] in response to monitoring a third DCI sent by the target cell, determining time-frequency resources of the PUSCH scheduled by the third DCI.

[0677] In some embodiments, the method further comprises:

[0678] reporting a CSI report of the first cell to the network device through a CG PUSCH for LTM.

[0679] In some embodiments, the method further comprises:

[0680] receiving a second MAC CE carrying a LTM cell switch command sent by the network device;

[0681] receiving an RRC sent by a target cell indicated by the second MAC CE, wherein the RRC comprises configuration information of the CG PUSCH;

[0682] reporting a CSI report of the first cell to the network device according to the configuration information of the CG PUSCH.

[0683] In some embodiments, the method further comprises:

[0684] reporting a CSI report of the first cell to the network device through a PUSCH of a message 3 in a 4-step random access procedure; or,

[0685] reporting a CSI report of the first cell to the network device through a PUSCH of a message A in a 2-step random access procedure.

[0686] In some embodiments, the method further comprises:

[0687] sending a CSI report of the first cell to a network device corresponding to the first cell on a PUSCH.

[0688] In some embodiments, the first DCI is a DCI that does not indicate time-frequency resources of a PUSCH, and each bit of the second indication field of the first DCI is set to a set value.

[0689] In some embodiments, the method further comprises:

[0690] reporting the CSI report of the first cell and the LTM cell switching completion information to the network device on the same PUSCH.

[0691] In some embodiments, the terminal obtains multiple PUSCHs, and the method further comprises:

[0692] sending the CSI report of the first cell on a first PUSCH that is the earliest in time among the multiple PUSCHs; or,

[0693] sending the CSI report of the first cell on a second PUSCH that is the latest in corresponding configuration signaling among the multiple PUSCHs.

[0694] In some embodiments, the CSI report of the first cell includes at least one of the following information: PMI, RI, CQI, LI, and CRI.

[0695] In some embodiments, the first cell is one of a candidate cell, a neighbor cell, or a target cell of the terminal.

[0696] 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:

[0697] Step S4101, sending an RRC to a terminal.

[0698] Step S4102, sending a first DCI to the terminal.

[0699] Step S4103, receiving a CSI report of a first cell.

[0700] Details of steps S4101-S4103 can be referred to the above embodiment description.

[0701] The communication method related to the embodiment of the present disclosure can include 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.

[0702] In the embodiments or examples, each step can be independent, arbitrarily combined or the order exchanged, the optional mode or optional example can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other examples, without contradiction.

[0703] FIG. 4B is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 4B, the embodiment of the present disclosure relates to a communication method, for a network device, the method comprising:

[0704] Step S4201, sending RRC to the terminal.

[0705] Step S4202, sending the first MAC CE to the terminal.

[0706] Step S4203, receiving the CSI report of the first cell.

[0707] The detailed description of steps S4201-S4203 can be referred to the above embodiment description.

[0708] The communication method related to the embodiment of the present disclosure can include at least one of steps S4101-S4103. For example, steps S4201+S4202 can be implemented as an independent embodiment, but are not limited thereto.

[0709] In the embodiments or examples, each step can be independent, arbitrarily combined or the order exchanged, the optional mode or optional example can be arbitrarily combined, and can be arbitrarily combined with any step of other embodiments or other examples, without contradiction.

[0710] FIG. 4C is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 4C, the embodiment of the present disclosure relates to a communication method, for a network device, the method comprising:

[0711] Step S4301, sending the second MAC CE carrying the LTM cell handover command to the terminal.

[0712] Step S4302, receiving the random access of the terminal.

[0713] Step S4303, sending the second DCI corresponding to the random access feedback in the random access process to the terminal.

[0714] Step S4304, sending RRC to the terminal.

[0715] Step S4305, receiving the CSI report of the first cell.

[0716] The communication method related to the embodiments of the present disclosure can include at least one of steps S4301-S4305. For example, step S4303 can be implemented as an independent embodiment, steps S4302+S4303+S4304 can be implemented as an independent embodiment, and steps S4302+S4303+S4304+S4305 can be implemented as an independent embodiment, but are not limited thereto.

[0717] In the present embodiment or example, each step can be independently combined or the order can be exchanged without contradiction, the optional mode or optional example can be combined arbitrarily, and any step of other embodiments or other examples can be combined arbitrarily.

[0718] FIG. 4D is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 4D, the embodiments of the present disclosure relate to a communication method for a network device, and the above method includes:

[0719] In step S4401, first information is sent to a terminal.

[0720] In some embodiments, the first information is used to determine that a first report is triggered, the first report determines a first reference signal resource, and the first reference signal resource is used for CSI measurement on a first cell, which is not a serving cell of the terminal.

[0721] In some embodiments, the first information is used to determine a first report identification ID, and the first report ID is used to determine configuration information of the first reference signal resource, and the configuration information is used to determine the first reference signal resource.

[0722] In some embodiments, the first information is used to determine a triggered report configuration ID as the ID of the first report; or,

[0723] The first information is used to determine a first trigger state, and the first trigger state determines the first report ID.

[0724] In some embodiments, the first information includes at least one of the following information: RRC, DCI, and first MAC CE.

[0725] In some embodiments, the configuration information of the first reference signal resource is contained in at least one of the following information:

[0726] The report configuration of the CSI;

[0727] The LTM-CSI report configuration.

[0728] In some embodiments, the first reference signal resource is at least one of the following reference signal resources:

[0729] The first reference signal resource is a reference signal resource corresponding to the first cell.

[0730] 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.

[0731] In some embodiments, the method further comprises at least one of the following:

[0732] sending, to the terminal, an RRC, the RRC being used to trigger at least one of a first correspondence relationship between a state and a reporting configuration ID, and a second correspondence relationship between the reporting configuration ID and configuration information of a reference signal resource;

[0733] sending, to the terminal, a first DCI, the first DCI including a first code point, the first code point being used to determine a corresponding reporting configuration ID as the first reporting ID;

[0734] The second correspondence relationship is used to determine configuration information of a reference signal resource corresponding to the ID of the first report as the configuration information of the first reference signal resource.

[0735] In some embodiments, the first code point is used to determine a corresponding first trigger state, and the first correspondence relationship is used to determine a first reporting configuration ID corresponding to the first trigger state; or,

[0736] The RRC is further used to configure a reporting configuration ID list, and the first code point is used to determine a first reporting configuration ID corresponding to the first code point from the reporting configuration ID list based on a protocol agreement.

[0737] In some embodiments, the configuration information of the first reference signal resource is contained in a reporting configuration corresponding to an LTM CSI reporting configuration ID, the LTM CSI reporting configuration ID corresponding to a first list; or the configuration information of the first reference signal resource is contained in a reporting configuration corresponding to a CSI reporting configuration ID, the CSI reporting configuration ID corresponding to a second list.

[0738] The LTM CSI reporting configuration ID is used for CSI measurement configuration of the first cell, and the CSI reporting configuration ID is used for CSI measurement configuration of a serving cell of the terminal; and the first list is different from the second list.

[0739] In some embodiments, the first DCI includes a first indication field, and a value of a bit in the first indication field is used to determine a list triggered by the first DCI from the first list and the second list.

[0740] In some embodiments, the first DCI is transmitted by a serving cell of the terminal, and is transmitted before a LTM cell switching command carried by a MAC CE, or is transmitted within a set time interval after the LTM cell switching command carried by the MAC CE is transmitted, or is transmitted before HARQ ACK / NACK feedback corresponding to the second MAC CE.

[0741] In some embodiments, the second MAC CE comprises at least one of the following information:

[0742] a target configuration ID, used at least for determining a target cell ID;

[0743] a TA;

[0744] a TCI state ID;

[0745] a random access preamble;

[0746] an SSB index;

[0747] a PRACH mask index.

[0748] In some embodiments, the method further comprises:

[0749] transmitting, to the terminal, a second MAC CE carrying a LTM cell switching command;

[0750] transmitting, to the terminal, a second DCI corresponding to random access feedback in a random access procedure, the second DCI being used for triggering a first report of the target cell.

[0751] In some embodiments, the method comprises at least one of the following:

[0752] transmitting, to the terminal, an RRC, the RRC being used for configuring at least one of a first correspondence relationship between a trigger state and a report configuration ID, and a second correspondence relationship between a report configuration ID and configuration information of a reference signal resource;

[0753] transmitting, to the terminal, a first MAC CE, the first MAC CE being used for triggering at least one second report configuration ID of the first cell as the first report ID;

[0754] determining, according to the second correspondence relationship, configuration information of a reference signal resource corresponding to the second report configuration ID as the configuration information of the first reference signal resource.

[0755] In some embodiments, the first MAC CE is one of the following MAC CEs:

[0756] a second MAC CE carrying a LTM cell switching command;

[0757] a MAC CE different from the second MAC CE.

[0758] In some embodiments, the method further includes:

[0759] receiving a CSI report of the first cell reported by the terminal.

[0760] In some embodiments, the method further includes:

[0761] receiving a CSI report of the first cell reported by the terminal through a physical uplink shared channel (PUSCH).

[0762] In some embodiments, the method further includes:

[0763] sending, to the terminal, a DCI for scheduling time-frequency resources of the PUSCH;

[0764] receiving a CSI report of the first cell reported by the terminal on the time-frequency resources.

[0765] In some embodiments, the method further includes:

[0766] sending, to the terminal, a first DCI for scheduling time-frequency resources of the PUSCH; or,

[0767] sending, to the terminal, a second DCI corresponding to a random access feedback in a random access procedure, the second DCI being for scheduling time-frequency resources of the PUSCH.

[0768] In some embodiments, the method further includes:

[0769] sending, to the terminal, a second MAC CE carrying an LTM cell handover command;

[0770] in response to the second MAC CE including a TA, sending, to the terminal, a third DCI on a search space of a target cell indicated by the second MAC CE, the third DCI being for scheduling time-frequency resources of the PUSCH.

[0771] In some embodiments, the method further includes:

[0772] receiving a CSI report of the first cell reported by the terminal through a granted CG PUSCH for LTM.

[0773] In some embodiments, the method further includes:

[0774] sending, to the terminal, a second MAC CE carrying an LTM cell handover command;

[0775] The second MAC CE includes a TA, and the RRC includes configuration information of the CG PUSCH, and the configuration information of the CG PUSCH is used for the terminal to report the CSI report of the first cell.

[0776] In some embodiments, the method further includes:

[0777] receiving the CSI report of the first cell reported by the terminal through a PUSCH of a message 3 in a 4-step random access process; or

[0778] receiving the CSI report of the first cell reported by the terminal through a PUSCH of a message A in a 2-step random access process.

[0779] In some embodiments, the network device includes a network device corresponding to the first cell.

[0780] In some embodiments, the first DCI is a DCI that does not indicate a time-frequency resource of a PUSCH, and the values of the bit positions of the second indication field of the first DCI are all set values.

[0781] In some embodiments, the method further includes:

[0782] receiving the CSI report of the first cell and the LTM cell switching completion information reported by the terminal in the same PUSCH.

[0783] In some embodiments, the method further includes:

[0784] receiving the CSI report of the first cell on a first PUSCH that arrives earliest among a plurality of PUSCHs; or

[0785] receiving the CSI report of the first cell on a second PUSCH corresponding to the latest configuration signaling among a plurality of PUSCHs.

[0786] In some embodiments, the CSI report of the first cell includes at least one of the following information: PMI, RI, CQI, LI, and CRI.

[0787] In some embodiments, the first cell is one of a candidate cell, a neighbor cell, or a target cell of the terminal.

[0788] 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 including a terminal and a network device, and the above-mentioned method includes at least one of:

[0789] At step S5101, the network device sends first information to the terminal.

[0790] At step S5102, the terminal receives the first information.

[0791] At step S5103, the terminal determines a first report according to the first information.

[0792] At step S5104, the terminal determines a first reference signal resource according to the first report, the first reference signal resource being used for CSI measurement on a first cell, the first cell not being a serving cell of the terminal.

[0793] The optional implementation of steps S5101-S5103 can refer to the descriptions in the above embodiments.

[0794] In some embodiments, the above method can include the method described in the above embodiments of the communication system side, the terminal side, the network device side, and the like, which will not be described herein.

[0795] The communication method related to the embodiments of the present disclosure can include at least one of steps S5101-S5103. For example, step S5101 can be implemented as an independent embodiment, and steps S5103+S5104 can be implemented as an independent embodiment, but are not limited thereto.

[0796] 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.

[0797] The following is an exemplary introduction to the above method.

[0798] The present disclosure provides a communication method.

[0799] In some embodiments, the terminal determines that a first report is triggered, the first report corresponding to a first reference signal resource, the first reference signal resource being used 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 a reference signal resource of the first cell, the first cell not being a serving cell of the terminal.

[0800] In some embodiments, the first cell can be referred to as a candidate cell, a neighbor cell, a target cell, and the like.

[0801] In some embodiments, the first cell not being a serving cell of the terminal means that when the terminal determines the first reference signal resource, the first cell is not yet 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.

[0802] The following is the triggering method of CSI:

[0803] In some embodiments, the terminal determines that the first report is triggered based on the first information, and the first information is at least one of RRC, MAC CE or DCI. The first reference signal resource configuration information can be included in the CSI-reportconfig (i.e. configured based on the CSI framework), or the first reference signal resource configuration information is included in the LTM-CSI-reportconfig. While the first information is used to indicate the ID of the first report, such as the (LTM) CSI-reportconfig ID or the trigger state corresponding to the ID of the first report, and the first report corresponds to the first reference signal resource configuration information

[0804] In some embodiments, the first information is the first DCI, the codepoint of the DCI corresponds to the trigger state, the correspondence between the trigger state and the (LTM) CSI-reportconfig ID is determined by RRC, and the correspondence between the first report ID and the configuration information of the first reference signal resource is also determined by RRC.

[0805] In some embodiments, the first reference signal resource configuration information is included in the report configuration of the LTM CSI-reportconfig ID, and the trigger state list corresponding to the LTM CSI-reportconfig ID (corresponding to the CSI measurement configuration of the non-serving cell) is different from the trigger state list corresponding to the CSI-reportconfig ID (corresponding to the CSI measurement configuration of the serving cell).

[0806] In some embodiments, the first DCI contains 1 bit, which is used to indicate whether the DCI triggers the trigger state list corresponding to the LTM CSI-reportconfig ID or the trigger state list corresponding to the CSI-reportconfig ID.

[0807] In some embodiments, the first DCI is sent by the serving cell, such as the DCI being sent before the LTM cell switch command carried by the MAC CE, or being sent within T time after the LTM cell switch command carried by the MAC CE. The MAC CE contains at least one of the following:

[0808] Target configuration ID: used to determine target cell ID

[0809] Timing advance

[0810] TCI state ID

[0811] Random access preamble index

[0812] SSB index / PRACH mask index, used to determine the time-frequency resource corresponding to random access

[0813] In some embodiments, the first information is RRC, the terminal receives a LTM cell switch command carried by a MAC CE, the MAC CE does not indicate the value of timing advance (further, the terminal is not configured with UE-based TA measurement, which can be embodied in the specification), the terminal performs random access to the target cell, and the CSI report config of the target cell triggered by the MAC CE is indicated in the CSI request in the second DCI corresponding to the random access response (Msg 2 in the 4-step random access process). If the target cell corresponds to multiple (LTM) CSI report configs, the DCI indicates at least one of them or uses a default one such as the report config ID with the smallest value.

[0814] In some embodiments, the first information is a MAC CE, which is a MAC CE carrying a LTM cell switch command, or which is a MAC CE different from the MAC CE carrying the LTM cell switch command. The MAC CE indicates the (LTM) CSI report config ID corresponding to the target cell, and if the target cell corresponds to multiple (LTM) CSI report config IDs, the MAC CE indicates at least one of them

[0815] The following is the PUSCH resource for determining the CSI report of the non-serving cell reported by the terminal

[0816] In some embodiments, the terminal reports the CSI report of the non-serving cell, and the CSI report is sent on the PUSCH.

[0817] In some embodiments, the terminal reports the CSI report of the non-serving cell on at least one of the following PUSCHs.

[0818] In some embodiments, the first DCI schedules a PUSCH resource. Optionally, the first DCI further includes time and frequency domain locations of the dynamically scheduled PUSCH.

[0819] In some embodiments, the second DCI schedules a PUSCH. Optionally, the second DCI further includes time and frequency domain locations of the dynamically scheduled PUSCH. This item is actually the same as the PUSCH in the 4-step random access procedure, except that the first DCI emphasizes that the PUSCH can carry a CSI report.

[0820] In some embodiments, the third DCI schedules a PUSCH. Optionally, after receiving the LTM cell switch command carried by the MAC CE or after T time, the terminal monitors the search space of the target cell indicated in the MAC CE, and if the third DCI sent by the target cell also contains information about the time and frequency domain resource locations of the PUSCH. This monitoring is also only carried out in the case where the timing advance is indicated in the LTM cell switch command carried by the MAC CE. That is, this item cannot coexist with the PUSCH in the 4-step random access procedure (i.e., Msg 3) and the PUSCH in the 2-step random access procedure (Msg A).

[0821] In some embodiments, the RRC can also configure a CG PUSCH for LTM

[0822] In some embodiments, after receiving the LTM cell switch command carried by the MAC CE or after T time, the terminal monitors the RRC signaling sent by the target cell indicated in the MAC CE, and if the configuration information of the CG PUSCH for LTM is monitored. This monitoring is also only carried out in the case where the timing advance is indicated in the LTM cell switch command carried by the MAC CE. That is, this item cannot coexist with items e and f.

[0823] In some embodiments, the PUSCH in the 4-step random access procedure (i.e., Msg 3).

[0824] In some embodiments, the PUSCH in the 2-step random access procedure (Msg A).

[0825] In some embodiments, the first DCI is a DCI without PUSCH resource allocation. The specified field of this DCI is all 0 and / or all 1. For example, some specified fields are all 0, and some specified fields are all 1.

[0826] In some embodiments, the terminal sends a message of completion of LTM cell switch (e.g., completion of random access procedure, completion of RRC connection establishment, completion of RRC connection re-establishment) on the PUSCH.

[0827] In some embodiments, the terminal can send the CSI report and the RRC connection establishment completion message on the same PUSCH.

[0828] In some embodiments, for the above PUSCH, if the terminal obtains multiple PUSCHs, the PUSCH on which the CSI report of the non-serving cell is sent is determined based on at least one of the following rules. (Supplement multiple embodiments, note that some PUSCHs cannot coexist)

[0829] In some embodiments, the earliest PUSCH in time is preferred.

[0830] Further, the PUSCH is the one after the CSI has been measured; in addition, if it is a PUSCH in a random access procedure, it must also be the PUSCH corresponding to contention-free random access. If the random access procedure is contention-based, the PUSCH in Msg 3 or Msg A cannot be used to carry the CSI report. Because if multiple users' Msg 3 or Msg A collide, the base station cannot decode it. Therefore, another solution is that whether the first DCI contains PUSCH resource allocation can be based on whether the timing advance value is not provided in the LTM cell switch command, whether the resource for random access is provided, and if it is provided, it is contention-free random access. Then the first DCI can not give PUSCH resource allocation; otherwise, the first DCI needs to give PUSCH resource allocation.

[0831] In some embodiments, the last PUSCH determined by the configuration signaling is preferred.

[0832] Further, the PUSCH is the PUSCH after the CSI has been measured, and in addition, if it is the PUSCH in the random access process, it is also the PUSCH corresponding to the contention free random access. If the random access process is contention based, the PUSCH in Msg 3 or Msg A cannot be used to carry the CSI report. Because once multiple users send Msg 3 or Msg A collide, the base station cannot decode it. So another solution is the same as the above solution.

[0833] On the basis of any of the above embodiments, in some embodiments, the TCI state of the first reference signal resource is determined based on the first information, or the TCI state of the first reference signal resource is determined based on the joint / DL TCI state of the LTM cell switch command carried by the MAC CE (even if the first information is not the LTM cell switch command carried by the MAC CE).

[0834] On the basis of any of the above embodiments, in some embodiments, the TCI state of the PUSCH for CSI reporting is determined based on the first information, or the TCI state of the first reference signal resource is determined based on the joint / UL TCI state of the LTM cell switch command carried by the MAC CE (even if the first information is not the LTM cell switch command carried by the MAC CE).

[0835] On the basis of any of the above embodiments, in some embodiments, the reportquantity of the CSI report corresponding to the non-serving cell includes at least one of the following: PMI, RI, CQI, LI, CRI.

[0836] 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.

[0837] The embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device is proposed, the above device includes 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, which includes 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.

[0838] 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.

[0839] 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 a hardware circuit, and the logical relationship of the hardware circuit 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.

[0840] 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.

[0841] The processing module is configured to determine a first report according to first information, and determine a first reference signal resource according to the first report, the first reference signal resource being used for CSI measurement on a first cell, the first cell not being a serving cell of the terminal.

[0842] 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.

[0843] 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.

[0844] The transceiver module is configured to send first information to the terminal, the first information being used to determine a first report, the first report being used to determine a first reference signal resource, the first reference signal resource being used to perform CSI measurement on a first cell, the first cell not being a serving cell of the terminal.

[0845] 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 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.

[0846] 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.

[0847] 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.

[0848] 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.

[0849] 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 in the above methods, such as sending and receiving, are performed by the transceiver 7103, and other steps are performed by the processor 7101.

[0850] 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.

[0851] 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 them to the processor 7101.

[0852] 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 also include storage components for storing data, 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, etc.

[0853] 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.

[0854] The chip 7200 includes one or more processors 7201 for invoking instructions to cause the chip 7200 to perform any of the above methods.

[0855] In some embodiments, chip 7200 further includes one or more interface circuits 7202 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.

[0856] 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 chip 7200.

[0857] The disclosure also proposes a storage medium, which has instructions stored thereon, and when the instructions 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.

[0858] 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.

[0859] The disclosure also proposes a computer program, which, when running on a computer, causes the computer to perform any of the above methods.

[0860] 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.

[0861] 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.

[0862] 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.

[0863] 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 is performed by a terminal, comprising: determining a first report according to first information; determining a first reference signal resource for CSI measurement on a first cell which is not a serving cell of the terminal according to the first report.

2. The method of claim 1, wherein, The determining of the first reference signal resource according to the first report comprises: determining a first report identification (ID) according to the first information; determining configuration information of the first reference signal resource according to the first report ID; determining the first reference signal resource according to the configuration information of the first reference signal resource.

3. The method according to claim 1 or 2, characterized in that, The determining of the first report ID according to the first information comprises: determining a triggered report configuration ID as the first report ID according to the first information; or determining a first trigger state according to the first information, and determining the first report ID according to the first trigger state.

4. The method according to any one of claims 1-3, characterized in that, The first information comprises at least one of the following information: a radio resource control (RRC); a downlink control information (DCI); a first medium access control control element (MAC CE).

5. The method according to any one of claims 1-4, characterized in that, The configuration information of the first reference signal resource is contained in at least one of the following information: a report configuration of CSI; an L1 / L2 triggered mobility (LTM)-CSI report configuration.

6. The method according to any one of claims 1-5, 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.

7. The method according to any one of claims 1 to 6, characterized in that, The method further comprises at least one of the following: receiving an RRC transmitted by the network device, the RRC being used to configure at least one of a first correspondence relationship between a trigger state and a report configuration ID, and a second correspondence relationship between a report configuration ID and configuration information of a reference signal resource; receiving a first DCI transmitted by the network device, the first DCI comprising a first code point, and determining a first report configuration ID corresponding to the first code point as the first report ID; determining, according to the second correspondence relationship, configuration information of a reference signal resource corresponding to the first report ID as the configuration information of the first reference signal resource.

8. The method of claim 7, wherein, The determining of the first report configuration ID corresponding to the first code point comprises: determining a first trigger state corresponding to the first code point, and determining a first report configuration ID corresponding to the first trigger state according to the first correspondence relationship; or The RRC is further used to configure a report configuration ID list, and a first report configuration ID corresponding to the first code point is determined from the report configuration ID list based on a protocol agreement.

9. The method of claim 8, wherein, The configuration information of the first reference signal resource is contained in a report configuration corresponding to an LTM-CSI report configuration ID corresponding to a first list; or the configuration information of the first reference signal resource is contained in a report configuration corresponding to a CSI report configuration ID corresponding to a second list; The LTM CSI report configuration ID is used for CSI measurement configuration of the first cell, and the CSI report configuration ID is used for CSI measurement configuration of a serving cell of the terminal.

10. The method of claim 9, wherein, The method further includes: The first DCI includes a first indication field, and according to a value of a bit in the first indication field, a list triggered by the first DCI is determined from the first list and the second list.

11. The method of claim 7, wherein, The first DCI is sent by a serving cell of the terminal, and is sent before a second MAC CE carrying an LTM cell handover command, or is sent within a set time interval after the second MAC CE is sent, or is sent before hybrid automatic repeat request (HARQ) acknowledgement (ACK) / non-acknowledgement (NACK) feedback corresponding to the second MAC CE.

12. The method of claim 11, wherein, The second MAC CE includes at least one of the following information: A target configuration ID, used at least to determine a target cell ID; Timing advance (TA); Transmission configuration indication (TCI) state ID; Random access preamble index; Synchronization signal block (SSB) index; PRACH mask index.

13. The method of any one of claims 1-6, wherein, The method further includes: Receiving a second MAC CE carrying an LTM cell handover command sent by the network device; In response to the second MAC CE not indicating TA, randomly accessing a target cell of the terminal; Receiving a second DCI corresponding to random access feedback in a random access process, the second DCI being used to trigger a first report of the target cell.

14. The method of any one of claims 1-6, wherein, The method includes at least one of the following: Receiving an RRC sent by the network device, the RRC being used to configure at least one of a first correspondence relationship between a trigger state and a report configuration ID, and a second correspondence relationship between a report configuration ID and configuration information of a reference signal resource; Receiving a first MAC CE sent by the network device, and triggering at least one second report configuration ID of the first cell as the first report ID according to the first MAC CE; According to the second correspondence relationship, determining configuration information of a reference signal resource corresponding to the first report ID as the configuration information of the first reference signal resource.

15. The method of claim 14, wherein, The first MAC CE is one of the following MAC CEs: The second MAC CE carrying the LTM cell handover command; A MAC CE different from the second MAC CE.

16. The method of any one of claims 1-15, wherein, The method further includes: Reporting a CSI report of the first cell to the network device.

17. The method of claim 16, wherein, The method further includes: Reporting a CSI report of the first cell to the network device through a physical uplink shared channel (PUSCH).

18. The method of claim 17, wherein, The method further includes: Determining time-frequency resources of the PUSCH scheduled by DCI, and reporting a CSI report of the first cell to the network device on the time-frequency resources.

19. The method of claim 18, wherein, The determination of the time-frequency resources of the PUSCH scheduled by DCI includes: Determining time-frequency resources of the PUSCH scheduled by a first DCI; or, Determine time-frequency resources of the PUSCH scheduled by the second DCI corresponding to the random access feedback in the random access procedure.

20. The method of claim 18, wherein, The determining the time-frequency resources of the PUSCH scheduled by the DCI comprises: Receiving a second MAC CE carrying a LTM cell handover command sent by the network device; Monitoring a search space of a target cell indicated by the second MAC CE; In response to monitoring a third DCI sent by the target cell, determining time-frequency resources of the PUSCH scheduled by the third DCI.

21. The method of claim 17, wherein, The method further comprises: Reporting a CSI report of the first cell to the network device through a configured grant CG PUSCH for LTM.

22. The method of claim 21, wherein, The method further comprises: Receiving a second MAC CE carrying a LTM cell handover command sent by the network device; Receiving an RRC sent by a target cell indicated by the second MAC CE, wherein the RRC comprises configuration information of the CG PUSCH; According to the configuration information of the CG PUSCH, reporting a CSI report of the first cell to the network device.

23. The method of claim 17, wherein, The method further comprises: Reporting a CSI report of the first cell to the network device through a PUSCH of a message 3 in a 4-step random access procedure; or Reporting a CSI report of the first cell to the network device through a PUSCH of a message A in a 2-step random access procedure.

24. The method of claim 17, wherein, The method further comprises: Sending a CSI report of the first cell to a network device corresponding to the first cell on a PUSCH.

25. The method of claim 19, wherein, The first DCI is a DCI not indicating time-frequency resources of a PUSCH, and values of bit positions of a second indication field of the first DCI are all set values.

26. The method of any one of claims 17-25, wherein, The method further comprises: Reporting a CSI report of the first cell and LTM cell handover completion information to the network device on the same PUSCH.

27. The method of any one of claims 17-24, wherein, The terminal obtains multiple PUSCHs, and the method further comprises: Sending a CSI report of the first cell on a first PUSCH that arrives earliest in time among the multiple PUSCHs; or Sending a CSI report of the first cell on a second PUSCH corresponding to the latest configuration signaling among the multiple PUSCHs.

28. The method of any one of claims 1-27, wherein, The CSI report of the first cell comprises at least one of the following information: A precoding matrix identifier PMI; A rank identifier RI; A channel quality identifier CQI; A layer identifier LI; A channel state information reference signal resource identifier CRI.

29. The method of any one of claims 1-28, wherein, The first cell is one of a candidate cell, a neighbor cell or a target cell of the terminal.

30. A method of communication, comprising: The method is suitable for a network device, comprising: Sending first information to a terminal, the first information being used to determine a first report, the first report determining a first reference signal resource, the first reference signal resource being used to perform CSI measurement on a first cell, the first cell not being a serving cell of the terminal.

31. The method of claim 30, wherein, The first information is used to determine a first report ID, the first report ID being used to determine configuration information of the first reference signal resource, the configuration information being used to determine the first reference signal resource.

32. The method of claim 30 or 31, wherein, The first information is used to determine a triggered report configuration ID as the ID of the first report; or The first information is used to determine a first trigger state, and the first trigger state determines the first report ID.

33. The method of any one of claims 30-32, wherein, The first information includes at least one of the following information: RRC, DCI and first MAC CE.

34. The method of any one of claims 30-33, wherein, The configuration information of the first reference signal resource is contained in at least one of the following information: The report configuration of CSI; The LTM-CSI report configuration.

35. The method of any one of claims 30-34, wherein, The first reference signal resource is at least one of the following reference signal resources: The first reference signal resource is the reference signal resource corresponding to the first cell; The first reference signal resource is the reference signal resource having a quasi co-location (QCL) relationship with the reference signal resource of the first cell.

36. The method of any one of claims 30-35, wherein, The method further includes at least one of the following: Sends an RRC to the terminal, the RRC being used for at least one of the following: a first correspondence relationship between a trigger state and a report configuration ID, and a second correspondence relationship between the report configuration ID and the configuration information of the reference signal resource; Sends a first DCI to the terminal, the first DCI including a first code point, and the first code point being used to determine a corresponding first report configuration ID as the first report ID; The second correspondence relationship is used to determine the configuration information of the reference signal resource corresponding to the ID of the first report as the configuration information of the first reference signal resource.

37. The method of claim 36, wherein, The first code point is used to determine a corresponding first trigger state, and the first correspondence relationship is used to determine a first report configuration ID corresponding to the first trigger state; or The RRC is further used to configure a report configuration ID list, and the first code point is used to determine the first report configuration ID corresponding to the first code point from the report configuration ID list based on a protocol agreement.

38. The method of claim 37, wherein, The configuration information of the first reference signal resource is contained in the report configuration corresponding to the LTM-CSI report configuration ID, and the LTM-CSI report configuration ID corresponds to a first list; or the configuration information of the first reference signal resource is contained in the report configuration corresponding to the CSI report configuration ID, and the CSI report configuration ID corresponds to a second list; Wherein, the LTM-CSI report configuration ID is used for CSI measurement configuration of the first cell, and the CSI report configuration ID is used for CSI measurement configuration of a serving cell of the terminal; the first list is different from the second list.

39. The method of claim 38, wherein, The first DCI includes a first indication field, and the value of a bit in the first indication field is used to determine a list triggered by the first DCI from the first list and the second list.

40. The method of claim 36, wherein, The first DCI is sent by a serving cell of the terminal, and is sent before a LTM cell switching command carried by a MAC CE, or is sent within a set time interval after the LTM cell switching command carried by the MAC CE is sent, or is sent before a HARQ ACK / NACK feedback corresponding to the second MAC CE.

41. The method of claim 40, wherein, The second MAC CE includes at least one of the following information: Target configuration ID, at least for determining target cell ID; TA; TCI state ID; Random access preamble index; SSB index; PRACH mask index.

42. The method of any one of claims 30-35, wherein, The method further comprises: sending a second MAC CE carrying an LTM cell handover command to the terminal; sending a second DCI corresponding to random access feedback in a random access procedure to the terminal, the second DCI being used to trigger a first report of the target cell.

43. The method of any one of claims 30-35, wherein, The method comprises at least one of the following: sending an RRC to the terminal, the RRC being used to configure at least one of a first correspondence relationship between a trigger state and a report configuration ID, and a second correspondence relationship between a report configuration ID and configuration information of a reference signal resource; sending a first MAC CE to the terminal, the first MAC CE being used to trigger at least one second report configuration ID of the first cell as the first report ID; determining configuration information of a reference signal resource corresponding to the second report configuration ID as the configuration information of the first reference signal resource according to the second correspondence relationship.

44. The method of claim 43, wherein, The first MAC CE is one of the following MAC CEs: a second MAC CE carrying an LTM cell handover command; a MAC CE different from the second MAC CE.

45. The method of any one of claims 30-44, wherein, The method further comprises: receiving a CSI report of the first cell reported by the terminal.

46. The method of claim 45, wherein, The method further comprises: receiving a CSI report of the first cell reported by the terminal through a PUSCH.

47. The method of claim 46, wherein, The method further comprises: sending a DCI to the terminal, the DCI being used to schedule time-frequency resources of the PUSCH; receiving a CSI report of the first cell reported by the terminal on the time-frequency resources.

48. The method of claim 47, wherein, The method further comprises: sending a first DCI to the terminal, the first DCI being used to schedule time-frequency resources of the PUSCH; or sending a second DCI corresponding to random access feedback in a random access procedure to the terminal, the second DCI being used to schedule time-frequency resources of the PUSCH.

49. The method of claim 47, wherein, The method further comprises: sending a second MAC CE carrying an LTM cell handover command to the terminal; sending a third DCI to the terminal on a search space of the target cell indicated by the second MAC CE, the third DCI being used to schedule time-frequency resources of the PUSCH.

50. The method of claim 45, wherein, The method further comprises: receiving a CSI report of the first cell reported by the terminal through a CG PUSCH for LTM.

51. The method of claim 50, wherein, The method further comprises: sending a second MAC CE carrying an LTM cell handover command to the terminal; sending an RRC to the terminal, the RRC comprising configuration information of the CG PUSCH, the configuration information of the CG PUSCH being used for the terminal to report a CSI report of the first cell.

52. The method of claim 45, wherein, The method further comprises: receiving a CSI report of the first cell reported by the terminal through a PUSCH of a message 3 in a 4-step random access procedure; or The terminal reports the CSI report of the first cell through a PUSCH of a message A in a two-step random access process.

53. The method of claim 45, wherein, The network device comprises a network device corresponding to the first cell.

54. The method of claim 48, wherein, The first DCI is a DCI not indicating time-frequency resources of a PUSCH, and values of bit positions of a second indication field of the first DCI are all set values.

55. The method of any one of claims 46-54, wherein, The method further comprises: The terminal reports the CSI report of the first cell and the LTM cell switching completion information through a same PUSCH.

56. The method of claim 46, wherein, The method further comprises: The terminal reports the CSI report of the first cell through a first PUSCH with the earliest arrival time among multiple PUSCHs; or The terminal reports the CSI report of the first cell through a second PUSCH corresponding to the latest configuration signaling among the multiple PUSCHs.

57. The method of any one of claims 30-56, wherein, The CSI report of the first cell comprises at least one of the following information: PMI, RI, CQI, LI, and CRI.

58. The method of any one of claims 30-57, wherein, The first cell is one of a candidate cell, a neighbor cell, or a target cell of the terminal. 59.A communication method for a communication system comprising a terminal and a network device, the method comprising: The network device sends first information to the terminal; The terminal receives the first information and determines a first report according to the first information; The terminal determines a first reference signal resource according to the first report, the first reference signal resource being used for CSI measurement on a first cell, the first cell not being a serving cell of the terminal.

60. A terminal, characterized by comprising: a processing module configured to determine a first report according to the first information and determine a first reference signal resource according to the first report, the first reference signal resource being used for CSI measurement on a first cell, the first cell not being a serving cell of the terminal.

61. A network device, comprising: comprising: a transceiver configured to send first information to the terminal, the first information being used for determining a first report, the first report determining a first reference signal resource, the first reference signal resource being used for CSI measurement on a first cell, the first cell not being a serving cell of the terminal.

62. A terminal, comprising: comprising: one or more processors; wherein the terminal is configured to perform the method of any one of claims 1-29.

63. A network device, comprising: comprising: one or more processors; wherein the network device is configured to perform the method of any one of claims 30-58.

64. A communication system, characterized by comprising a terminal and a network device, wherein the terminal is configured to implement the method of any one of claims 1-29, and the network device is configured to implement the method of any one of claims 30-58.

65. A storage medium, the storage medium storing instructions, wherein, when the instructions are run on a communication device, cause the communication device to perform the method of any one of claims 1-29 or 30-58.

66. A program product, characterized by comprising a computer program that, when executed by a communication device, implements the method of any one of claims 1-29 or 30-58.

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