LTM processing method and apparatus, terminal, secondary node, and master node

Abstract

The present disclosure provides an LTM processing method and apparatus, a terminal, a secondary node, and a master node. The method comprises: a terminal receives LTM candidate configuration information sent by a master node and an LTM-related command sent by a secondary node; and on the basis of the LTM-related command, the terminal determines to use the LTM candidate configuration information sent by the master node.

Description

LTM processing method, apparatus, terminal, secondary node and master node

[0001] The present disclosure claims priority to the Chinese patent publication with the publication number 202411086729.5 and the title of "LTM processing method, apparatus, terminal, secondary node and master node" filed on August 8, 2024 with the Chinese Patent Office, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of communication, and particularly refers to an LTM processing method, apparatus, terminal, secondary node and master node. BACKGROUND

[0003] In the current technology, a layer 1 / layer 2 triggered mobility (L1 / L2 Triggered Mobility, LTM) is introduced, that is, the network pre-configures LTM candidate cell configuration information and L1 measurement configuration information for a terminal, the terminal performs L1 measurement based on the L1 measurement configuration information and reports the L1 measurement result to the network, the network makes a cell change (handover) decision based on the L1 measurement result information reported by the terminal, and if the network decides to change the cell (handover), the network sends a cell change (handover) command to the terminal through an LTM cell switch command. When the terminal receives the LTM cell switch command, the terminal will perform cell change (handover) and access to the target candidate cell.

[0004] In one LTM mechanism, only intra-CU LTM is supported, that is, all candidate cells are under the same CU. In a dual connectivity scenario, the master node (MN) and the secondary node (SN) can independently provide LTM candidate configuration information, and the SN side LTM does not need the participation of the MN. In addition, the maximum number of LTM candidates that the SN can configure is indicated to the SN by the MN through an inter-node radio resource control (RRC) message.

[0005] In another LTM mechanism, inter-CU LTM will be supported, and inter-CU LTM for a secondary cell group (SCG) in a dual connectivity scenario (inter-CU SCG LTM) will be supported.

[0006] In the prior art, to support inter-CU SCG LTM, one possible implementation is that the MN provides LTM candidate configuration for the terminal, and then when the SN side sends an LTM-related command, the terminal cannot determine whether the configuration information indicated by the command for the terminal to apply is the inter-CU SCG LTM configuration information provided by the MN side or the intra-CU SCG LTM configuration information provided by the SN side, that is, the terminal cannot determine the unique candidate configuration information to apply according to the LTM-related command sent by the SN side. SUMMARY

[0007] Embodiments of the present disclosure aim to provide an LTM processing method and device, a terminal, a secondary node and a primary node, to solve the problem in the prior art that the terminal cannot determine the unique candidate configuration information to apply according to the LTM-related command sent by the SN side.

[0008] To solve the above problem, the present disclosure provides an LTM processing method triggered by layer 1 / layer 2, which comprises:

[0009] The terminal receives LTM candidate configuration information sent by a primary node and an LTM-related command sent by a secondary node.

[0010] The terminal determines to apply the LTM candidate configuration information sent by the primary node according to the LTM-related command.

[0011] The terminal receives LTM candidate configuration information sent by a primary node, which comprises:

[0012] The terminal receives the LTM candidate configuration information sent by the primary node through a target information unit.

[0013] The target information unit is used to carry LTM candidate configuration information of a cross-central unit (CU) of a secondary cell group.

[0014] The LTM candidate configuration information comprises first indication information.

[0015] The first indication information is used to indicate that the LTM candidate configuration information is LTM candidate configuration information of a cross-CU of a secondary cell group.

[0016] Alternatively, the first indication information is used to indicate that the LTM candidate configuration information is stored in a variable of LTM candidate configuration of a cross-CU of a secondary cell group.

[0017] The LTM-related command comprises second indication information.

[0018] The second indication information is used to indicate that the LTM-related command applies LTM candidate configuration information sent by a primary node.

[0019] Alternatively, the second indication information is used to indicate that the LTM related command applies the cross-CU LTM candidate configuration information of the secondary cell group.

[0020] The LTM related command is a dedicated command of the cross-CU LTM of the secondary cell group.

[0021] The LTM related command includes at least one of the following commands:

[0022] A command for notifying the terminal to perform timing advance (TA) advance acquisition;

[0023] A command for notifying the terminal to perform candidate cell transmission configuration indicator (TCI) activation or deactivation;

[0024] A cell change command.

[0025] The LTM candidate configuration information includes at least one of the following information:

[0026] Configuration information of the candidate cell;

[0027] Configuration information of the layer 1 measurement reference signal;

[0028] Configuration information of the TCI;

[0029] Configuration information of the advance acquisition of uplink synchronization.

[0030] The LTM related command sent by the secondary node includes a first candidate configuration identifier.

[0031] The first candidate configuration identifier is used to indicate the LTM candidate configuration information configured by the secondary node; or the first candidate configuration identifier is used to indicate the LTM candidate configuration information configured by the master node.

[0032] The method further includes:

[0033] After the terminal receives the LTM candidate configuration information sent by the master node, the terminal sends the measurement result corresponding to the LTM candidate configuration information to the secondary node.

[0034] The method further includes:

[0035] The terminal stores the LTM candidate configuration information in a separate variable, or

[0036] The terminal stores the LTM candidate configuration information in a variable of the secondary cell group (SCG).

[0037] The embodiment of the disclosure further provides an LTM processing method, executed by a secondary node, comprising:

[0038] sending an LTM-related command to the terminal; the LTM-related command comprises second indication information, or the LTM-related command is a dedicated command for the LTM of the secondary cell group across the CU;

[0039] The second indication information is used to indicate that the LTM-related command applies the LTM candidate configuration information sent by the primary node, or the second indication information is used to indicate that the LTM-related command applies to the LTM candidate configuration information of the secondary cell group across the CU.

[0040] The LTM-related command comprises at least one of the following commands:

[0041] a command for notifying the terminal to perform timing advance (TA) advance acquisition;

[0042] a command for notifying the terminal to perform candidate cell transmission configuration indication (TCI) activation or deactivation;

[0043] a cell change command.

[0044] The LTM-related command comprises a first candidate configuration identifier.

[0045] The first candidate configuration identifier is used to indicate the LTM candidate configuration information configured by the secondary node, or the first candidate configuration identifier is used to indicate the LTM candidate configuration information configured by the primary node.

[0046] The method further comprises:

[0047] receiving the measurement result corresponding to the LTM candidate configuration information sent by the primary node and sent by the terminal.

[0048] The embodiment of the disclosure further provides an LTM processing method, executed by a primary node, comprising:

[0049] sending LTM candidate configuration information to the terminal; the LTM candidate configuration information comprises first indication information; wherein the first indication information is used to indicate that the LTM candidate configuration information is the LTM candidate configuration information of the secondary cell group across the CU; or the first indication information is used to indicate that the LTM candidate configuration information is stored in a variable of the LTM candidate configuration of the secondary cell group across the CU;

[0050] Or,

[0051] sending the LTM candidate configuration information to the terminal through a target information unit; wherein the target information unit is used to carry the LTM candidate configuration information of the secondary cell group across the CU.

[0052] The LTM candidate configuration information includes at least one of the following information:

[0053] configuration information of the candidate cell;

[0054] configuration information of the layer 1 measurement reference signal;

[0055] configuration information of the TCI;

[0056] configuration information of the early uplink synchronization.

[0057] The embodiments of the present disclosure further provide a terminal, including a memory, a transceiver, and a processor.

[0058] The memory is configured to store a computer program; the transceiver is configured to transceive data under the control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations:

[0059] receive the LTM candidate configuration information sent by the master node and the LTM related command sent by the secondary node;

[0060] determine to apply the LTM candidate configuration information sent by the master node according to the LTM related command.

[0061] The processor is further configured to read the computer program in the memory and perform the following operations:

[0062] receive the LTM candidate configuration information sent by the master node through a target information unit;

[0063] The target information unit is configured to carry the LTM candidate configuration information of the cross-central unit (CU) of the secondary cell group.

[0064] The LTM candidate configuration information includes first indication information;

[0065] The first indication information is used to indicate that the LTM candidate configuration information is the LTM candidate configuration information of the cross-CU of the secondary cell group;

[0066] Alternatively, the first indication information is used to indicate that the LTM candidate configuration information is stored in a variable of the LTM candidate configuration of the cross-CU of the secondary cell group.

[0067] The LTM related command includes second indication information;

[0068] The second indication information is used to indicate that the LTM related command applies the LTM candidate configuration information sent by the master node;

[0069] Alternatively, the second indication information is used to indicate that the LTM related command applies the cross-CU LTM candidate configuration information of the secondary cell group.

[0070] The LTM related command is a dedicated command of the cross-CU LTM of the secondary cell group.

[0071] The LTM related command includes at least one of the following commands:

[0072] A command for notifying the terminal to perform timing advance (TA) advance acquisition.

[0073] A command for notifying the terminal to perform candidate cell transmission configuration indication (TCI) activation or deactivation.

[0074] A cell change command.

[0075] The LTM candidate configuration information includes at least one of the following information:

[0076] Configuration information of a candidate cell;

[0077] Configuration information of a layer 1 measurement reference signal;

[0078] Configuration information of a TCI;

[0079] Configuration information of advance acquisition of uplink synchronization.

[0080] The LTM related command sent by the secondary node includes a first candidate configuration identifier.

[0081] The first candidate configuration identifier is used to indicate the LTM candidate configuration information configured by the secondary node, or the first candidate configuration identifier is used to indicate the LTM candidate configuration information configured by the primary node.

[0082] The processor is further configured to read the computer program in the memory and perform the following operations:

[0083] After receiving the LTM candidate configuration information sent by the primary node, the secondary node sends a measurement result corresponding to the LTM candidate configuration information.

[0084] The processor is further configured to read the computer program in the memory and perform the following operations:

[0085] The LTM candidate configuration information is stored in a separate variable, or

[0086] The LTM candidate configuration information is stored in a variable of a secondary cell group (SCG).

[0087] The embodiments of the present disclosure further provide a secondary node, including a memory, a transceiver, and a processor.

[0088] a memory for storing a computer program; a transceiver for transceiving data under control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations:

[0089] sending an LTM-related command to the terminal; the LTM-related command includes second indication information, or the LTM-related command is a dedicated command for the LTM of the secondary cell group across the CU;

[0090] The second indication information is used to indicate that the LTM-related command applies the LTM candidate configuration information sent by the master node, or the second indication information is used to indicate that the LTM-related command applies to the LTM candidate configuration information of the secondary cell group across the CU.

[0091] The LTM-related command includes at least one of the following commands:

[0092] a command for notifying the terminal to perform timing advance (TA) advance acquisition;

[0093] a command for notifying the terminal to perform candidate cell transmission configuration indication (TCI) activation or deactivation;

[0094] a cell change command.

[0095] The LTM-related command includes a first candidate configuration identifier.

[0096] The first candidate configuration identifier is used to indicate the LTM candidate configuration information of the secondary node configuration, or the first candidate configuration identifier is used to indicate the LTM candidate configuration information of the master node configuration.

[0097] The processor is further configured to read the computer program in the memory and perform the following operations:

[0098] receiving the measurement result corresponding to the LTM candidate configuration information sent by the master node and sent by the terminal.

[0099] The embodiments of the present disclosure also provide a master node, including a memory, a transceiver, and a processor:

[0100] a memory for storing a computer program; a transceiver for transceiving data under control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations:

[0101] sending the LTM candidate configuration information to the terminal; the LTM candidate configuration information comprises first indication information; wherein the first indication information is used to indicate that the LTM candidate configuration information is the LTM candidate configuration information of the cross-CU of the secondary cell group; or the first indication information is used to indicate that the LTM candidate configuration information is stored in a variable of the LTM candidate configuration of the cross-CU of the secondary cell group;

[0102] Or,

[0103] sending the LTM candidate configuration information to the terminal through a target information unit; wherein the target information unit is used to carry the LTM candidate configuration information of the cross-CU of the secondary cell group.

[0104] The LTM candidate configuration information comprises at least one of the following information:

[0105] configuration information of a candidate cell;

[0106] configuration information of a layer 1 measurement reference signal;

[0107] configuration information of a TCI;

[0108] configuration information of early uplink synchronization.

[0109] The embodiments of the present disclosure further provide an LTM processing apparatus, comprising:

[0110] a receiving unit, configured to receive LTM candidate configuration information sent by a master node and LTM related commands sent by a secondary node;

[0111] a determining unit, configured to determine to apply the LTM candidate configuration information sent by the master node according to the LTM related commands.

[0112] The embodiments of the present disclosure further provide an LTM processing apparatus, comprising:

[0113] a first sending unit, configured to send LTM related commands to a terminal; the LTM related commands comprise second indication information, or the LTM related commands are dedicated commands of the LTM of the cross-CU of the secondary cell group;

[0114] The second indication information is used to indicate that the LTM related commands apply the LTM candidate configuration information sent by the master node, or the second indication information is used to indicate that the LTM related commands apply the LTM candidate configuration information of the cross-CU of the secondary cell group.

[0115] The embodiments of the present disclosure further provide an LTM processing apparatus, comprising:

[0116] The second sending unit is configured to send LTM candidate configuration information to the terminal; the LTM candidate configuration information comprises first indication information; wherein the first indication information is used to indicate that the LTM candidate configuration information is the LTM candidate configuration information of the cross-CU of the secondary cell group; or the first indication information is used to indicate that the LTM candidate configuration information is stored in a variable of the LTM candidate configuration of the cross-CU of the secondary cell group.

[0117] Or, the LTM candidate configuration information is sent to the terminal by a target information unit; wherein the target information unit is used to carry the LTM candidate configuration information of the cross-CU of the secondary cell group.

[0118] The embodiment of the present disclosure further provides a processor readable storage medium, which stores a program for causing the processor to execute the method described above.

[0119] The above technical solutions of the present disclosure have at least the following beneficial effects:

[0120] In the LTM processing method, device, terminal, secondary node and primary node of the embodiment of the present disclosure, the primary node configures the LTM candidate configuration information for the terminal, and in the case that the secondary node sends the LTM related command to the terminal, the terminal determines to apply the LTM candidate configuration information sent by the primary node according to the LTM related command sent by the secondary node, thereby solving the problem that the terminal cannot determine the uniquely applied candidate configuration information according to the LTM related command sent by the SN side. BRIEF DESCRIPTION OF DRAWINGS

[0121] Fig. 1 shows a block diagram of a wireless communication system to which the embodiment of the present disclosure can be applied;

[0122] Fig. 2 shows a step flowchart of the LTM processing method provided by the embodiment of the present disclosure;

[0123] Fig. 3 shows a step flowchart of the LTM processing method provided by the embodiment of the present disclosure;

[0124] Fig. 4 shows a step flowchart of the LTM processing method provided by the embodiment of the present disclosure;

[0125] Fig. 5 shows a structural schematic diagram of a terminal provided by the embodiment of the present disclosure;

[0126] Fig. 6 shows a structural schematic diagram of a secondary node provided by the embodiment of the present disclosure;

[0127] Fig. 7 shows a structural schematic diagram of a primary node provided by the embodiment of the present disclosure;

[0128] Fig. 8 shows a structural schematic diagram of an LTM processing device provided by the embodiment of the present disclosure;

[0129] FIG. 9 shows a second structural schematic diagram of the LTM processing apparatus according to an embodiment of the present disclosure;

[0130] FIG. 10 shows a third structural schematic diagram of the LTM processing apparatus according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0131] To make the technical problems solved by the present disclosure, technical solutions and advantages clearer, the following will be described in detail with reference to the drawings and specific embodiments.

[0132] FIG. 1 shows a block diagram of a wireless communication system to which an embodiment of the present disclosure can be applied. The wireless communication system includes a terminal device 101 and a network side device 102. The terminal device 101 can also be referred to as a terminal or a user terminal (User Equipment, UE). It should be noted that the specific type of the terminal 101 is not limited in the embodiments of the present disclosure. The network side device 102 can be a base station or a core network. It should be noted that in the embodiments of the present disclosure, only a base station in an NR system is taken as an example, but the specific type of the base station is not limited.

[0133] In the embodiments of the present disclosure, the term "and / or" describes the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the associated objects before and after it are in an "or" relationship.

[0134] In the embodiments of the present disclosure, the term "multiple" means two or more, and other quantifiers are similar.

[0135] The technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present disclosure.

[0136] The technical solutions provided by the embodiments of the present disclosure can be applied to various systems. For example, the applicable systems can be a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, a long term evolution advanced (LTE-A) system, a universal mobile system (UMTS), a worldwide interoperability for microwave access (WiMAX) system, a 5th generation (5G) new radio (NR) system and its evolved communication system, a 6th generation (6G) system, and the like. The various systems can include terminal devices and network devices. The system can also include a core network part, such as an evolved packet system (EPC), a 5G core network (5GC), and the like.

[0137] The terminal device to which the embodiments of the present disclosure relate can refer to a device providing voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing devices connected to a wireless modem, etc. In different systems, the name of the terminal device can also be different, for example, in the 5G system, the terminal device can be called user equipment (UE). The wireless terminal device can communicate with one or more core networks (CN) through a radio access network (RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or called "cellular" phone) and a computer with a mobile terminal device, for example, it can be a portable, pocket, handheld, computer built-in or vehicle-mounted mobile device, which exchanges language and / or data with the radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), etc. The wireless terminal device can also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, which is not limited in the embodiments of the present disclosure.

[0138] The network device related to the embodiments of the present disclosure can be a base station, which can include a plurality of cells serving terminals. According to different application scenarios, the base station can also be referred to as an access point, or can be a device in an access network that communicates with wireless terminal devices through one or more sectors over an air interface, or other names. The network device can be used to exchange received air frames and Internet Protocol (IP) packets as a router between the wireless terminal device and the rest of the access network, which can include an Internet Protocol (IP) communication network. The network device can also coordinate the management of the properties of the air interface. For example, the network device related to the embodiments of the present disclosure can be a network device (Base Transceiver Station, BTS) in the Global System for Mobile Communications (GSM) or Code Division Multiple Access (CDMA), and can also be a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), and can also be an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system (5G network architecture), and can also be a home evolved Node B (HeNB), a relay node, a femto, a pico, etc., which are not limited in the embodiments of the present disclosure. In some network structures, the network device can include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit can also be arranged geographically apart.

[0139] The network device and the terminal device can each use one or more antennas for multi-input multi-output (MIMO) transmission, which can be single-user MIMO (SU-MIMO) or multiple-user MIMO (MU-MIMO). According to the shape and number of root antenna combinations, the MIMO transmission can be two-dimensional MIMO (2D-MIMO), three-dimensional MIMO (3D-MIMO), full-dimensional MIMO (FD-MIMO), or massive-MIMO, and can also be diversity transmission or precoding transmission or beamforming transmission, etc.

[0140] As shown in FIG. 2, the embodiment of the present disclosure provides a layer 1 / layer 2 triggered mobility LTM processing method, which comprises:

[0141] Step 201, the terminal receives LTM candidate configuration information sent by the master node and LTM related commands sent by the secondary node;

[0142] Step 202, the terminal determines to apply the LTM candidate configuration information sent by the master node according to the LTM related commands.

[0143] In the embodiment of the present disclosure, the master node configures the LTM candidate configuration information for the terminal, and in the case that the secondary node sends the LTM related commands to the terminal, the terminal determines to apply the LTM candidate configuration information sent by the master node according to the LTM related commands sent by the secondary node, thereby solving the problem that the terminal cannot determine the uniquely applied candidate configuration information according to the LTM related commands sent by the SN side.

[0144] As an optional embodiment, the terminal receives the LTM candidate configuration information sent by the master node, which comprises:

[0145] The terminal receives the LTM candidate configuration information sent by the master node through a target information unit;

[0146] The target information unit is used to carry inter-CU SCG LTM candidate configuration information of a cross-center unit (CU) of a secondary cell group.

[0147] As another optional embodiment, the LTM candidate configuration information comprises first indication information;

[0148] The first indication information is used for indicating that the LTM candidate configuration information is inter-CU SCG LTM candidate configuration information.

[0149] Alternatively, the first indication information is used for indicating that the LTM candidate configuration information is stored in a variable of inter-CU SCG LTM candidate configuration.

[0150] In other words, the LTM candidate configuration information sent by the master node in the embodiment of the disclosure is inter-CU SCG LTM candidate configuration information, and the disclosure provides two ways to indicate the terminal that the LTM candidate configuration information is inter-CU SCG LTM candidate configuration information; the two ways are as follows:

[0151] The first way is implicit or indirect indication, that is, a target information unit is defined separately to carry inter-CU SCG LTM candidate configuration, and the LTM candidate configuration information received by the terminal on the target information unit is inter-CU SCG LTM candidate configuration information.

[0152] The second way is explicit indication, that is, the first indication information is included in the LTM candidate configuration information, and the first indication information is used for explicitly indicating that the LTM candidate configuration information is inter-CU SCG LTM candidate configuration information, or the first indication information is used for explicitly indicating that the terminal stores the LTM candidate configuration information in a variable of inter-CU SCG LTM candidate configuration.

[0153] Optionally, the method further includes:

[0154] The terminal stores the LTM candidate configuration information in a separate variable, or

[0155] The terminal stores the LTM candidate configuration information in a variable of a secondary cell group SCG.

[0156] In the embodiment of the disclosure, the separate variable can be understood as a separately defined variable of inter-CU SCG LTM candidate configuration, and the LTM candidate configuration information stored in the separate variable can be used for inter-CU SCG LTM; or the LTM candidate configuration information stored in the variable of the SCG can also be used for inter-CU SCG LTM.

[0157] In one optional embodiment of the disclosure, the LTM-related command includes second indication information.

[0158] The second indication information is used for indicating LTM candidate configuration information sent by the master node of the LTM related command; or the second indication information is used for indicating inter-CU SCG LTM candidate configuration information of the LTM related command applied to the secondary cell group.

[0159] Alternatively, in another optional embodiment of the present disclosure, the LTM related command is a dedicated command of inter-CU SCG LTM.

[0160] In summary, the embodiments of the present disclosure provide two ways to indicate to the terminal that the LTM related command sent by the secondary node is for inter-CU SCG LTM; the two ways are as follows:

[0161] The first way is explicit indication, that is, the second indication information is included in the LTM related command, and the second indication information is used for explicitly indicating that the LTM related command applies to LTM candidate configuration information sent by the master node, or the second indication information is used for explicitly indicating that the LTM related command applies to inter-CU SCG LTM candidate configuration information.

[0162] The second way is implicit or indirect indication, that is, a new command (inter-CU SCG LTM dedicated command) is defined alone, and the terminal determines that the command is for inter-CU SCG LTM when receiving the inter-CU SCG LTM dedicated command, and then the command applies to LTM candidate configuration information configured by the master node.

[0163] As an optional embodiment, the LTM related command includes at least one of the following commands:

[0164] A command for notifying the terminal to perform timing advance (TA) advance acquisition, such as a physical downlink control channel (PDCCH) order;

[0165] A command for notifying the terminal to perform candidate cell transmission configuration indication (TCI) activation or deactivation, such as a candidate cell TCI state activation or deactivation medium access control control element (MAC CE) (Candidate Cell TCI States Activation / Deactivation MAC CE);

[0166] A cell change command, such as an LTM cell change command MAC CE (LTM cell switch command MAC CE).

[0167] In other words, the function of the LTM-related command includes at least one of the following:

[0168] The terminal is notified to perform a timing advance (TA) advance acquisition.

[0169] The terminal is notified to perform a candidate cell TCI activation or deactivation.

[0170] The terminal performs a cell change or handover.

[0171] As another optional embodiment, the LTM candidate configuration information includes at least one of the following information:

[0172] Configuration information of the candidate cell, for example, the LTM candidate configuration information is included in an RRC reconfiguration message, and the LTM candidate configuration information includes the configuration information of the candidate cell.

[0173] Configuration information of a layer 1 measurement reference signal.

[0174] Configuration information of a TCI.

[0175] Configuration information of an advance uplink synchronization.

[0176] In at least one optional embodiment of the present disclosure, the LTM-related command sent by the secondary node further includes a first candidate configuration identifier.

[0177] The first candidate configuration identifier is used to indicate the LTM candidate configuration information configured by the secondary node, or the first candidate configuration identifier is used to indicate the LTM candidate configuration information configured by the primary node.

[0178] Correspondingly, the terminal determines to apply the LTM candidate configuration information configured by the primary node indicated by the first candidate configuration identifier according to the first candidate configuration identifier included in the LTM-related command.

[0179] As an optional embodiment, the method further includes:

[0180] After the terminal receives the LTM candidate configuration information sent by the primary node, the terminal sends a measurement result corresponding to the LTM candidate configuration information to the secondary node.

[0181] In summary, in the embodiments of the present disclosure, the primary node provides inter-CU SCG LTM candidate configuration information for the terminal, and the secondary node sends an inter-CU SCG LTM-related command to the terminal. The terminal determines to apply the inter-CU SCG LTM candidate configuration information provided by the primary node according to the inter-CU SCG LTM-related command sent by the secondary node, so that the terminal can determine the uniquely applied LTM candidate configuration information according to the LTM-related command sent by the secondary node.

[0182] As shown in FIG. 3, the embodiment of the present disclosure further provides an LTM processing method, executed by a secondary node, comprising:

[0183] Step 301, sending an LTM related command to a terminal; the LTM related command comprises second indication information, or the LTM related command is a dedicated command for inter-CU SCG LTM.

[0184] The second indication information is used to indicate that the LTM related command applies LTM candidate configuration information sent by a master node, or the second indication information is used to indicate that the LTM related command applies inter-CU SCG LTM candidate configuration information.

[0185] In the embodiment of the present disclosure, the secondary node indicates to the terminal that the LTM related command sent by the secondary node is for inter-CU SCG LTM in two ways; the two ways are as follows:

[0186] The first way is explicit indication, that is, the second indication information is included in the LTM related command, and the second indication information is used to explicitly indicate that the LTM related command applies LTM candidate configuration information sent by a master node, or the second indication information is used to explicitly indicate that the LTM related command applies inter-CU SCG LTM candidate configuration information.

[0187] The second way is implicit or indirect indication, that is, a new command (inter-CU SCG LTM dedicated command) is defined separately, and the terminal determines that the command is for inter-CU SCG LTM when receiving the inter-CU SCG LTM dedicated command, and the command applies LTM candidate configuration information configured by a master node.

[0188] As an optional embodiment, the LTM related command comprises at least one of the following commands:

[0189] A command for notifying the terminal to perform timing advance (TA) advance acquisition, such as PDCCH order.

[0190] A command for notifying the terminal to perform candidate cell transmission configuration indication (TCI) activation or deactivation, such as candidate cell TCI state activation or deactivation MAC CE.

[0191] A cell change command, such as an LTM cell switch command MAC CE.

[0192] In other words, the function of the LTM-related command includes at least one of the following:

[0193] Notifying the terminal to perform Time Advanced (TA) advance acquisition;

[0194] Notifying the terminal to perform candidate cell TCI activation or deactivation;

[0195] Performing cell change or handover by the terminal.

[0196] In at least one optional embodiment of the present disclosure, the LTM-related command includes a first candidate configuration identifier.

[0197] The first candidate configuration identifier is used to indicate LTM candidate configuration information of a secondary node configuration; or the first candidate configuration identifier is used to indicate LTM candidate configuration information of a master node configuration.

[0198] Correspondingly, the terminal determines to apply the LTM candidate configuration information of the master node configuration indicated by the first candidate configuration identifier according to the first candidate configuration identifier included in the LTM-related command.

[0199] As an optional embodiment, the method further includes:

[0200] Receiving the measurement result corresponding to the LTM candidate configuration information sent by the master node and sent by the terminal.

[0201] In an implementation manner, after the master node sends the LTM candidate configuration information to the terminal, the secondary node receives the measurement result corresponding to the LTM candidate configuration information sent by the terminal.

[0202] In summary, in the embodiment of the present disclosure, the master node provides inter-CU SCG LTM candidate configuration information for the terminal, and the secondary node sends an inter-CU SCG LTM-related command to the terminal. Then, the terminal determines to apply the inter-CU SCG LTM candidate configuration information provided by the master node according to the inter-CU SCG LTM-related command sent by the secondary node, so that the terminal can determine the uniquely applied LTM candidate configuration information according to the LTM-related command sent by the secondary node.

[0203] As shown in FIG. 4, the present disclosure also provides an LTM processing method, which is executed by a master node, and the method includes:

[0204] In step 401, LTM candidate configuration information is sent to a terminal; the LTM candidate configuration information includes first indication information; wherein the first indication information is used to indicate that the LTM candidate configuration information is inter-CU SCG LTM candidate configuration information; or the first indication information is used to indicate that the LTM candidate configuration information is stored in a variable of inter-CU SCG LTM candidate configuration.

[0205] Or,

[0206] The LTM candidate configuration information is sent to the terminal through a target information unit; wherein the target information unit is used to carry the inter-CU SCG LTM candidate configuration information of the secondary cell group.

[0207] In other words, the LTM candidate configuration information sent by the master node in the embodiment of the present disclosure is the inter-CU SCG LTM candidate configuration information, and the present disclosure provides two ways to indicate to the terminal that the LTM candidate configuration information is the inter-CU SCG LTM candidate configuration information; the two ways are as follows:

[0208] The first way is implicit or indirect indication, that is, a target information unit is defined alone to carry the inter-CU SCG LTM candidate configuration, and the LTM candidate configuration information received by the terminal on the target information unit is the inter-CU SCG LTM candidate configuration information;

[0209] The second way is explicit indication, that is, first indication information is included in the LTM candidate configuration information, and the first indication information is used to explicitly indicate that the LTM candidate configuration information is the inter-CU SCG LTM candidate configuration information, or the first indication information is used to explicitly indicate that the terminal stores the LTM candidate configuration information in a variable of the inter-CU SCG LTM candidate configuration.

[0210] In at least one embodiment of the present disclosure, the LTM candidate configuration information includes at least one of the following information:

[0211] Configuration information of a candidate cell, for example, the LTM candidate configuration information is included in an RRC reconfiguration message, and the LTM candidate configuration information includes the configuration information of the candidate cell;

[0212] Configuration information of a layer 1 measurement reference signal;

[0213] Configuration information of a TCI;

[0214] Configuration information of early uplink synchronization.

[0215] In the embodiment of the present disclosure, the master node provides inter-CU SCG LTM candidate configuration information for the terminal, the secondary node sends the related command of the inter-CU SCG LTM to the terminal, and then the terminal determines to apply the inter-CU SCG LTM candidate configuration information provided by the master node according to the related command of the inter-CU SCG LTM sent by the secondary node, so that the terminal can determine the uniquely applied LTM candidate configuration information according to the LTM related command sent by the secondary node.

[0216] In order to more clearly describe the LTM processing method provided by the embodiment of the present disclosure, the following will be described in conjunction with several examples.

[0217] Example one, early TCI (TCI early) activation and deactivation

[0218] Step 11, the master node provides inter-CU SCG LTM candidate configuration information for the terminal through the RRC reconfiguration message, and the configuration form can be as follows:

[0219] The master node sends the RRC reconfiguration message to the terminal, and provides the inter-CU SCG LTM candidate configuration information through the definition of a new information unit (i.e. target information unit), that is, the LTM candidate configuration information carried by the target information unit is the inter-CU SCG LTM candidate configuration information, and the inter-CU SCG LTM candidate configuration information can include the following information:

[0220] Configuration information of the candidate cell;

[0221] Layer 1 (L1) measurement reference signal configuration information;

[0222] TCI configuration information;

[0223] Configuration information of early uplink synchronization acquisition;

[0224] Step 12, optionally, the terminal performs the variable storage process of the LTM candidate configuration information;

[0225] The terminal stores the LTM candidate configuration information in the variable of the inter-CU SCG LTM, and the variable can be the variable associated with the secondary node or the master node;

[0226] Step 13, the secondary node decides to perform early TCI activation and deactivation;

[0227] The secondary node sends a Candidate Cell TCI States Activation / Deactivation MAC CE (LTM-related command) to the terminal, which includes candidate configuration identification information. In addition, second indication information is also included, which indicates that the terminal applies the LTM candidate configuration information sent by the primary node side;

[0228] The second indication information can indicate inter-CU SCG LTM or indicate that the terminal indexes the LTM candidate configuration information on the primary node side, and the implementation form can be to introduce a 1-bit indication field in the Candidate Cell TCI States Activation / Deactivation MAC CE or introduce a new Candidate Cell ID_2, which is not limited here.

[0229] Alternatively,

[0230] The secondary node sends a newly defined MAC CE to the terminal to trigger early TCI activation and deactivation of inter-CU SCG LTM, such as Candidate Cell TCI States Activation / Deactivation MAC CE_2, which includes candidate configuration identification information

[0231] Step 14: After receiving the Candidate Cell TCI States Activation / Deactivation MAC CE, the terminal determines the candidate configuration information that performs early TCI activation and deactivation according to the second indication information and the candidate configuration identification information,

[0232] If the variable storage in step 12 is not performed, the candidate configuration information that performs early TCI activation and deactivation is determined based on the candidate configuration identification information in the LTM candidate configuration information on the primary node side;

[0233] If the variable storage in step 12 is performed, the candidate configuration information that performs early TCI activation and deactivation is determined based on the candidate configuration identification information in the stored inter-CU SCG LTM candidate configuration variable;

[0234] Alternatively, after receiving the Candidate Cell TCI States Activation / Deactivation MAC CE_2,

[0235] If the variable storage in step 12 is not performed, the candidate configuration information for performing early TCI activation and deactivation is determined based on the candidate configuration identification information in the LTM candidate configuration information on the master node side;

[0236] If the variable storage in step 12 is performed, the candidate configuration information for performing early TCI activation and deactivation is determined based on the candidate configuration identification information in the variable of the inter-CU LTM candidate configuration on the secondary node side.

[0237] Example two, early TCI (TCI in advance) activation and deactivation

[0238] Step 21, the master node provides the inter-CU SCG LTM candidate configuration information to the terminal through the RRC reconfiguration message, and the configuration form can be as follows:

[0239] The master node sends an RRC reconfiguration message to the terminal, provides the inter-CU SCG LTM candidate configuration information in the intra-CU LTM candidate configuration list on the master node side, and the candidate configuration information can include the following information:

[0240] Configuration information of the candidate cell;

[0241] L1 measurement reference signal configuration information;

[0242] TCI configuration information;

[0243] Configuration information for early acquisition of uplink synchronization;

[0244] Step 22, optionally, the terminal performs a variable storage process of the candidate configuration;

[0245] There is one or more candidate configuration information associated with first indication information in the LTM candidate configuration information, and the first indication information indicates that the LTM candidate configuration information is the inter-CU SCG LTM candidate configuration information, and the terminal stores the LTM candidate configuration information in the variable of the inter-CU SCG LTM, which can be a variable associated with the secondary node or the master node;

[0246] Step 23, the secondary node decides to perform early TCI activation and deactivation;

[0247] The secondary node sends a Candidate Cell TCI States Activation / Deactivation MAC CE (LTM-related command) to the terminal, which includes candidate configuration identification information. In addition, it also includes second indication information, which indicates that the terminal applies the LTM candidate configuration information sent by the primary node side;

[0248] The second indication information can indicate inter-CU SCG LTM or indicate that the terminal indexes the LTM candidate configuration information on the primary node side, and the implementation form can be to introduce a 1-bit indication field in the Candidate Cell TCI States Activation / Deactivation MAC CE or introduce a new Candidate Cell ID_2, which is not limited here.

[0249] Alternatively,

[0250] The secondary node sends a newly defined MAC CE to the terminal to trigger early TCI activation and deactivation of inter-CU SCG LTM, such as Candidate Cell TCI States Activation / Deactivation MAC CE_2, which includes candidate configuration identification information;

[0251] Step 24, after receiving the Candidate Cell TCI States Activation / Deactivation MAC CE, the terminal determines the candidate configuration information that performs early TCI activation and deactivation according to the second indication information and the candidate configuration identification information,

[0252] If the variable storage in step 22 is not performed, the candidate configuration information that performs early TCI activation and deactivation is determined based on the candidate configuration identification information in the LTM candidate configuration information on the primary node side;

[0253] If the variable storage in step 22 is performed, the candidate configuration information that performs early TCI activation and deactivation is determined based on the candidate configuration identification information in the stored inter-CU SCG LTM candidate configuration variable;

[0254] Alternatively, after receiving the Candidate Cell TCI States Activation / Deactivation MAC CE_2,

[0255] If the variable storage in step 22 is not performed, the candidate configuration information for performing early TCI activation and deactivation is determined based on the candidate configuration identification information in the LTM candidate configuration information of the master node side;

[0256] If the variable storage in step 22 is performed, the candidate configuration information for performing early TCI activation and deactivation is determined based on the candidate configuration identification information in the variable of the inter-CU LTM candidate configuration of the secondary node side.

[0257] Example three, early TA (TA advance) acquisition

[0258] Step 31, the master node provides the inter-CU SCG LTM candidate configuration information to the terminal through the RRC reconfiguration message, and the configuration form can be as follows:

[0259] The master node sends the RRC reconfiguration message to the terminal, and provides the inter-CU SCG LTM candidate configuration information by defining a new information unit (i.e. target information unit), that is, the LTM candidate configuration information carried by the target information unit is the inter-CU SCG LTM candidate configuration information, and the inter-CU SCG LTM candidate configuration information can include the following information:

[0260] Configuration information of the candidate cell;

[0261] Layer 1 (L1) measurement reference signal configuration information;

[0262] TCI configuration information;

[0263] Configuration information of early acquisition of uplink synchronization;

[0264] Step 32, optionally, the terminal performs the variable storage process of the LTM candidate configuration information;

[0265] The terminal stores the LTM candidate configuration information in the variable of the inter-CU SCG LTM, which can be a variable associated with the secondary node or the master node;

[0266] Step 33, the secondary node decides to perform early TA acquisition;

[0267] The secondary node decides to send the PDCCH order to the terminal, including the candidate configuration index. In addition, the second indication information is also included, which indicates that the terminal applies the LTM candidate configuration information sent by the master node side;

[0268] The second indication information can indicate inter-CU SCG LTM or indicate terminal index master node side configuration, etc. The implementation form can be introducing 1 bit indication field in PDCCH order or introducing new Cell indicator_2 to realize, which is not limited here.

[0269] Alternatively, the secondary node sends a newly defined DIC format (DCI format) to the terminal for triggering early TA acquisition of the secondary node side inter-CU LTM, and the DCI format includes a candidate configuration index.

[0270] Step 34, after receiving the PDCCH order, the terminal determines the candidate configuration information for performing early TA acquisition according to the second indication information and the candidate configuration index,

[0271] If the variable storage in step 32 is not performed, the terminal determines the candidate configuration information for performing early TA acquisition according to the candidate configuration index provided in the PDCCH order in the domain for providing inter-CU SCG LTM configuration in the LTM candidate configuration information on the master node side;

[0272] If the variable storage in step 32 is performed, the candidate configuration information for performing early TA acquisition is determined according to the candidate configuration index provided in the PDCCH order in the variable storing the inter-CU SCG LTM candidate configuration;

[0273] Alternatively, the terminal receives a newly defined DCI format for triggering early TA acquisition of the secondary node side inter-CU LTM;

[0274] If the variable storage in step 32 is not performed, the terminal determines the candidate configuration information for performing early TA acquisition according to the candidate configuration index provided in the PDCCH order in the domain for providing inter-CU SCG LTM configuration in the LTM candidate configuration information on the master node side;

[0275] If the variable storage in step 2 is performed, the candidate configuration information for performing early TA acquisition is determined according to the candidate configuration index provided in the PDCCH order in the variable storing the inter-CU SCG LTM candidate configuration.

[0276] Example four, early TA (TA advance) acquisition

[0277] Step 41, the master node provides the inter-CU SCG LTM candidate configuration information to the terminal through the RRC reconfiguration message, and the configuration form can be as follows:

[0278] The master node sends an RRC reconfiguration message to the terminal, provides inter-CU SCG LTM candidate configuration information in the intra-CU LTM candidate configuration list on the master node side, which can include the following information:

[0279] Configuration information of the candidate cell;

[0280] L1 measurement reference signal configuration information;

[0281] TCI configuration information;

[0282] Configuration information for early acquisition of uplink synchronization;

[0283] Step 42, one or more candidate configuration information associated with the first indication information exists in the LTM candidate configuration information, and the first indication information indicates that the terminal is inter-CU SCG LTM candidate configuration information;

[0284] Optionally, the terminal performs a variable storage process, and the terminal stores the LTM candidate configuration information associated with the first indication information in the inter-CU SCG LTM variable, which can be a secondary node or a master node associated variable;

[0285] Step 43, the secondary node decides to perform early TCI activation and deactivation;

[0286] The secondary node sends a Candidate Cell TCI States Activation / Deactivation MAC CE (LTM related command) to the terminal, which includes candidate configuration identification information. In addition, it also includes second indication information, which indicates that the terminal applies the LTM candidate configuration information sent by the master node;

[0287] The above-mentioned second indication information can indicate inter-CU SCG LTM or indicate the terminal to index the LTM candidate configuration information on the master node side, etc. The implementation form can be to introduce a 1-bit indication field in the Candidate Cell TCI States Activation / Deactivation MAC CE or introduce a new Candidate Cell ID_2 to realize it, which is not limited here.

[0288] Or,

[0289] The secondary node sends a newly defined MAC CE to the terminal for triggering early TCI activation / deactivation of inter-CU SCG LTM, for example, Candidate Cell TCI States Activation / Deactivation MAC CE_2, which includes candidate configuration identification information;

[0290] Step 44, after receiving the PDCCH order, the terminal determines the candidate configuration information of the inter-CU SCG LTM based on the second indication information and the candidate configuration index;

[0291] If the variable storage in step 42 is not performed, the terminal determines the candidate configuration information of the inter-CU SCG LTM based on the first indication information in the LTM candidate configuration information of the primary node side, and then determines the candidate configuration information for performing early TA acquisition from the candidate configuration information of the inter-CU SCG LTM according to the candidate configuration index provided in the PDCCH order;

[0292] If the variable storage in step 42 is performed, the candidate configuration information for performing early TA acquisition is determined from the variable storing the inter-CU SCG LTM candidate configuration according to the candidate configuration index provided in the PDCCH order;

[0293] Alternatively, the terminal receives a newly defined DCI format for triggering early TA acquisition of the inter-CU SCG LTM;

[0294] If the variable storage in step 2 is not performed, the terminal determines the candidate configuration information of the inter-CU SCG LTM based on the first indication information in the LTM candidate configuration information of the primary node side, and then determines the candidate configuration information for performing early TA acquisition from the candidate configuration information of the inter-CU SCG LTM according to the candidate configuration index provided in the PDCCH order;

[0295] If the variable storage in step 2 is performed, the candidate configuration information for performing early TA acquisition is determined from the variable storing the inter-CU SCG LTM candidate configuration according to the candidate configuration index provided in the PDCCH order.

[0296] Example five, cell change

[0297] Step 51, the primary node provides the inter-CU SCG LTM candidate configuration information to the terminal through the RRC reconfiguration message, and the configuration form can be as follows:

[0298] The master node sends an RRC reconfiguration message to the terminal, and provides inter-CU SCG LTM candidate configuration information by defining a new information unit (i.e., a target information unit), i.e., the LTM candidate configuration information carried by the target information unit is inter-CU SCG LTM candidate configuration information, which can include the following information:

[0299] Configuration information of the candidate cell;

[0300] Layer 1 (L1) measurement reference signal configuration information;

[0301] TCI configuration information;

[0302] Configuration information for early uplink synchronization acquisition;

[0303] Step 52, optionally, the terminal performs a variable storage process of the LTM candidate configuration information;

[0304] The terminal stores the LTM candidate configuration information in the inter-CU SCG LTM variable, which can be a secondary node or a master node associated variable;

[0305] Step 53, the secondary node decides to perform cell change based on the L1 measurement result;

[0306] The secondary node sends an LTM Cell Switch Command MAC CE (LTM cell change command MAC CE) to the terminal, and the MAC CE includes candidate configuration identification information. In addition, it also includes second indication information, which indicates that the terminal applies the LTM candidate configuration information sent by the master node side;

[0307] The above-mentioned second indication information can indicate inter-CU SCG LTM or indicate the terminal to index the master node side LTM candidate configuration, and the implementation form can be to introduce a 1-bit indication field in the LTM Cell Switch Command MAC CE or introduce a new Target Configuration ID_2 to realize it, which is not limited here;

[0308] Alternatively, the secondary node sends a newly defined MAC CE to the terminal to trigger the inter-CU SCG LTM cell change, for example, LTM Cell Switch Command MAC CE_2, which includes candidate configuration identification information;

[0309] Step 54, after receiving the LTM Cell Switch Command MAC CE, the terminal determines the second indication information and the candidate configuration identification information according to the second indication information and the candidate configuration identification information;

[0310] If the variable storage in step 52 is not performed, the candidate configuration information for performing the LTM cell change is determined based on the candidate configuration identification information in the LTM candidate configuration information on the master node side;

[0311] If the variable storage in step 52 is performed, the candidate configuration information for performing the LTM cell change is determined based on the candidate configuration identification information in the variable storing the inter-CU SCG LTM candidate configuration;

[0312] Alternatively, after the terminal receives the LTM Cell Switch Command MAC CE_2,

[0313] If the variable storage in step 52 is not performed, the candidate configuration information for performing the LTM cell change is determined based on the candidate configuration identification information in the LTM candidate configuration information on the master node side;

[0314] If the variable storage in step 52 is performed, the candidate configuration information for performing the LTM cell change is determined based on the candidate configuration identification information in the variable storing the inter-CU SCG LTM candidate configuration.

[0315] Example six, cell change

[0316] Step 61, the master node provides the inter-CU SCG LTM candidate configuration information to the terminal through the RRC reconfiguration message, and the configuration form can be as follows:

[0317] The master node sends the RRC reconfiguration message to the terminal, and provides the inter-CU SCG LTM candidate configuration information in the intra-CU LTM candidate configuration list on the master node side, which can include the following information:

[0318] Configuration information of the candidate cell;

[0319] L1 measurement reference signal configuration information;

[0320] TCI configuration information;

[0321] Configuration information of the early uplink synchronization;

[0322] Step 62, optionally, the terminal performs the variable storage process of the candidate configuration;

[0323] One or more candidate configuration information in the LTM candidate configuration information is associated with the first indication information. The first indication information indicates that the LTM candidate configuration information is the candidate configuration information of inter-CU SCG LTM, and the terminal stores the LTM candidate configuration information in the variable of inter-CU SCG LTM. The variable can be a variable associated with the secondary node or the master node.

[0324] In step 63, the secondary node determines to perform cell change based on the L1 measurement result;

[0325] The secondary node sends the LTM Cell Switch Command MAC CE to the terminal. The MAC CE includes candidate configuration identification information. In addition, the second indication information is also included, which indicates that the terminal applies the LTM candidate configuration information sent by the master node side;

[0326] The second indication information can indicate inter-CU SCG LTM or indicate that the terminal indexes the LTM candidate configuration of the master node side. The implementation form can be to introduce a 1-bit indication field in the LTM Cell Switch Command MAC CE or introduce a new Target Configuration ID_2 to achieve this, which is not limited here;

[0327] Alternatively, the secondary node sends a newly defined MAC CE to the terminal to trigger the cell change of inter-CU SCG LTM, for example, LTM Cell Switch Command MAC CE_2. The MAC CE includes candidate configuration identification information;

[0328] In step 64, after receiving the LTM Cell Switch Command MAC CE, the terminal determines the candidate configuration information for performing LTM cell change based on the second indication information and the candidate configuration identification information;

[0329] If the variable storage in step 62 is not performed, the candidate configuration information for performing LTM cell change is determined based on the candidate configuration identification information in the LTM candidate configuration information of the master node side;

[0330] If the variable storage in step 62 is performed, the candidate configuration information for performing LTM cell change is determined based on the candidate configuration identification information in the variable of inter-CU SCG LTM candidate configuration;

[0331] Alternatively, after receiving the LTM Cell Switch Command MAC CE_2,

[0332] If the variable storage in step 62 is not performed, the candidate configuration information for performing LTM cell change is determined based on the candidate configuration identification information in the LTM candidate configuration information of the master node side;

[0333] If the variable storage in step 62 is performed, the candidate configuration information for performing LTM cell change is determined based on the candidate configuration identification information in the variable storing the inter-CU SCG LTM candidate configuration.

[0334] In summary, in the embodiments of the present disclosure, the master node provides the inter-CU SCG LTM candidate configuration information for the terminal, and the secondary node sends the inter-CU SCG LTM related command to the terminal, so that the terminal determines to apply the inter-CU SCG LTM candidate configuration information provided by the master node according to the inter-CU SCG LTM related command sent by the secondary node, so that the terminal can determine the uniquely applied LTM candidate configuration information according to the LTM related command sent by the secondary node.

[0335] As shown in FIG. 5, the embodiments of the present disclosure also provide a terminal, which comprises a memory 520, a transceiver 510, and a processor 500:

[0336] The memory 520 is configured to store a computer program; the transceiver 510 is configured to transceive data under the control of the processor 500; and the processor 500 is configured to read the computer program in the memory 520 and perform the following operations:

[0337] receiving the LTM candidate configuration information sent by the master node and the LTM related command sent by the secondary node;

[0338] determining to apply the LTM candidate configuration information sent by the master node according to the LTM related command.

[0339] As an optional embodiment, the processor is further configured to read the computer program in the memory and perform the following operations:

[0340] receiving the LTM candidate configuration information sent by the master node through a target information unit;

[0341] The target information unit is configured to carry the LTM candidate configuration information of the cross-central unit (CU) of the secondary cell group.

[0342] As an optional embodiment, the LTM candidate configuration information comprises first indication information;

[0343] The first indication information is configured to indicate that the LTM candidate configuration information is the LTM candidate configuration information of the cross-CU of the secondary cell group.

[0344] Alternatively, the first indication information is used to indicate that the LTM candidate configuration information is stored in a variable of the cross-CU LTM candidate configuration of the secondary cell group.

[0345] As an optional embodiment, the LTM-related command includes second indication information.

[0346] The second indication information is used to indicate that the LTM-related command applies the LTM candidate configuration information sent by the master node.

[0347] Alternatively, the second indication information is used to indicate that the LTM-related command applies the cross-CU LTM candidate configuration information of the secondary cell group.

[0348] As an optional embodiment, the LTM-related command is a dedicated command for the cross-CU LTM of the secondary cell group.

[0349] As an optional embodiment, the LTM-related command includes at least one of the following commands:

[0350] A command for notifying the terminal to perform timing advance (TA) advance acquisition;

[0351] A command for notifying the terminal to perform candidate cell transmission configuration indication (TCI) activation or deactivation;

[0352] A cell change command.

[0353] As an optional embodiment, the LTM candidate configuration information includes at least one of the following information:

[0354] Configuration information of a candidate cell;

[0355] Configuration information of a layer 1 measurement reference signal;

[0356] Configuration information of a TCI;

[0357] Configuration information of advance acquisition of uplink synchronization.

[0358] As an optional embodiment, the LTM-related command sent by the secondary node includes a first candidate configuration identifier.

[0359] The first candidate configuration identifier is used to indicate the LTM candidate configuration information configured by the secondary node, or the first candidate configuration identifier is used to indicate the LTM candidate configuration information configured by the master node.

[0360] As an optional embodiment, the processor is further configured to read a computer program in the memory and perform the following operations:

[0361] After receiving the LTM candidate configuration information sent by the master node, the processor sends a measurement result corresponding to the LTM candidate configuration information to the secondary node.

[0362] As an optional embodiment, the processor is further configured to read a computer program in the memory and perform the following operations:

[0363] storing the LTM candidate configuration information in a separate variable, or,

[0364] storing the LTM candidate configuration information in a variable of a secondary cell group (SCG).

[0365] In FIG. 5, the bus architecture can include any number of interconnected buses and bridges, which link various circuits, including the processor(s) 500 and the memory 520, together. The bus architecture can also link various other circuits, such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and thus, not described further herein. The bus interface provides an interface. The transceiver 510 can be a plurality of elements, including a transmitter and a receiver, which provide a means for communicating with various other apparatuses over a transmission medium, including a wireless channel, a wired channel, optical cable, and the like. The user interface 530 can also be an interface that can be external or internal to the apparatus, connecting to devices including, but not limited to, a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0366] The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 500 in performing operations.

[0367] Optionally, the processor 500 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0368] The processor, by invoking the computer program stored in the memory, is configured to perform any of the methods provided by the embodiments of the present disclosure according to the executable instructions obtained. The processor and the memory can also be arranged physically separately.

[0369] In the embodiment of the present disclosure, the master node provides inter-CU SCG LTM candidate configuration information for a terminal, and the secondary node sends an inter-CU SCG LTM related command to the terminal. The terminal determines to apply the inter-CU SCG LTM candidate configuration information provided by the master node according to the inter-CU SCG LTM related command sent by the secondary node, so that the terminal can determine the uniquely applied LTM candidate configuration information according to the LTM related command sent by the secondary node.

[0370] It should be noted that the terminal provided in the embodiment of the present disclosure is a terminal capable of performing the above-mentioned LTM processing method, and all embodiments of the above-mentioned LTM processing method are applicable to the terminal and can achieve the same or similar beneficial effects, which will not be repeated here.

[0371] As shown in FIG. 6, the embodiment of the present disclosure also provides a secondary node, which includes a memory 620, a transceiver 610, and a processor 600:

[0372] The memory 620 is configured to store a computer program; the transceiver 610 is configured to transceive data under the control of the processor 600; and the processor 600 is configured to read the computer program in the memory 620 and perform the following operations:

[0373] send an LTM related command to the terminal; the LTM related command includes second indication information, or the LTM related command is a dedicated command for inter-CU LTM of a secondary cell group;

[0374] The second indication information is used to indicate that the LTM related command applies LTM candidate configuration information sent by the master node, or the second indication information is used to indicate that the LTM related command applies to inter-CU LTM candidate configuration information of the secondary cell group.

[0375] As an optional embodiment, the LTM related command includes at least one of the following commands:

[0376] a command for notifying the terminal to perform timing advance (TA) advance acquisition;

[0377] a command for notifying the terminal to perform candidate cell transmission configuration indication (TCI) activation or deactivation;

[0378] a cell change command.

[0379] As an optional embodiment, the LTM related command includes a first candidate configuration identifier.

[0380] The first candidate configuration identifier is used to indicate LTM candidate configuration information configured by the secondary node, or the first candidate configuration identifier is used to indicate LTM candidate configuration information configured by the master node.

[0381] As an optional embodiment, the processor is further configured to read a computer program in the memory and perform the following operations:

[0382] receiving the measurement result corresponding to the LTM candidate configuration information sent by the master node.

[0383] In FIG. 6, the bus architecture can include any number of interconnected buses and bridges, which are linked together by various circuits, including one or more processors represented by the processor 600 and the memory represented by the memory 620. The bus architecture can also link various other circuits, such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, and thus, are not further described herein. The bus interface provides an interface. The transceiver 610 can be a plurality of elements, i.e., including a transmitter and a receiver, which provide units for communicating with various other devices on transmission media, including wireless channels, wired channels, optical cables, and the like. The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 600 in performing operations.

[0384] The processor 600 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor can also adopt a multi-core architecture.

[0385] In the embodiments of the present disclosure, the master node provides the inter-CU SCG LTM candidate configuration information for the terminal, and the secondary node sends the inter-CU SCG LTM related command to the terminal, and then the terminal determines to apply the inter-CU SCG LTM candidate configuration information provided by the master node according to the inter-CU SCG LTM related command sent by the secondary node, so that the terminal can determine the uniquely applied LTM candidate configuration information according to the LTM related command sent by the secondary node.

[0386] It should be noted that the terminal provided in the embodiments of the present disclosure is a terminal capable of performing the above-mentioned LTM processing method, and all embodiments of the above-mentioned LTM processing method are applicable to the terminal, and can achieve the same or similar beneficial effects, which are not repeated here.

[0387] As shown in FIG. 7, the embodiment of the present disclosure further provides a master node, comprising a memory 720, a transceiver 710, and a processor 700:

[0388] The memory 720 is configured to store a computer program; the transceiver 710 is configured to transceive data under the control of the processor 700; and the processor 700 is configured to read the computer program in the memory 720 and perform the following operations:

[0389] send LTM candidate configuration information to the terminal; the LTM candidate configuration information comprises first indication information; wherein the first indication information is used to indicate that the LTM candidate configuration information is the LTM candidate configuration information of the cross-CU of the secondary cell group; or the first indication information is used to indicate that the LTM candidate configuration information is stored in the variable of the LTM candidate configuration of the cross-CU of the secondary cell group;

[0390] Or,

[0391] send LTM candidate configuration information to the terminal through a target information unit; wherein the target information unit is used to carry the LTM candidate configuration information of the cross-CU of the secondary cell group.

[0392] As an optional embodiment, the LTM candidate configuration information comprises at least one of the following information:

[0393] configuration information of the candidate cell;

[0394] configuration information of the layer 1 measurement reference signal;

[0395] configuration information of the TCI;

[0396] configuration information of the early uplink synchronization.

[0397] In FIG. 7, the bus architecture can comprise any number of interconnected buses and bridges, which are specifically linked together by various circuits of the processor 700 representing one or more processors and the memory 720 representing the memory. The bus architecture can also link various other circuits such as peripheral devices, voltage stabilizers, and power management circuits, which are well known in the art, and therefore, further description thereof will not be given herein. The bus interface provides an interface. The transceiver 710 can be a plurality of elements, i.e., comprising a transmitter and a receiver, which provides a unit for communicating with various other devices on a transmission medium, including a wireless channel, a wired channel, an optical cable, and the like. The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 700 in performing operations.

[0398] The processor 700 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0399] In the embodiment of the present disclosure, the master node provides inter-CU SCG LTM candidate configuration information for the terminal, and the secondary node sends an inter-CU SCG LTM related command to the terminal. The terminal determines to apply the inter-CU SCG LTM candidate configuration information provided by the master node according to the inter-CU SCG LTM related command sent by the secondary node, so that the terminal can determine the uniquely applied LTM candidate configuration information according to the LTM related command sent by the secondary node.

[0400] It should be noted that the terminal provided in the embodiment of the present disclosure is a terminal capable of performing the above-mentioned LTM processing method, and all embodiments of the LTM processing method are applicable to the terminal and can achieve the same or similar beneficial effects, which will not be repeated here.

[0401] As shown in FIG. 8, the embodiment of the present disclosure further provides an LTM processing device, comprising:

[0402] The receiving unit 801 is configured to receive the LTM candidate configuration information sent by the master node and the LTM related command sent by the secondary node.

[0403] The determining unit 802 is configured to determine to apply the LTM candidate configuration information sent by the master node according to the LTM related command.

[0404] As an optional embodiment, the receiving unit comprises:

[0405] The first receiving sub-unit is configured to receive the LTM candidate configuration information sent by the master node through a target information unit.

[0406] The target information unit is configured to carry the LTM candidate configuration information of the cross-central unit (CU) of the secondary cell group.

[0407] As an optional embodiment, the LTM candidate configuration information comprises first indication information.

[0408] The first indication information is configured to indicate that the LTM candidate configuration information is the LTM candidate configuration information of the cross-CU of the secondary cell group.

[0409] Alternatively, the first indication information is used to indicate that the LTM candidate configuration information is stored in a variable of the cross-CU LTM candidate configuration of the secondary cell group.

[0410] As an optional embodiment, the LTM-related command includes second indication information.

[0411] The second indication information is used to indicate that the LTM-related command applies the LTM candidate configuration information sent by the master node.

[0412] Alternatively, the second indication information is used to indicate that the LTM-related command applies the cross-CU LTM candidate configuration information of the secondary cell group.

[0413] As an optional embodiment, the LTM-related command is a dedicated command for the cross-CU LTM of the secondary cell group.

[0414] As an optional embodiment, the LTM-related command includes at least one of the following commands:

[0415] A command for notifying the terminal to perform timing advance (TA) advance acquisition;

[0416] A command for notifying the terminal to perform candidate cell transmission configuration indication (TCI) activation or deactivation;

[0417] A cell change command.

[0418] As an optional embodiment, the LTM candidate configuration information includes at least one of the following information:

[0419] Configuration information of a candidate cell;

[0420] Configuration information of a layer 1 measurement reference signal;

[0421] Configuration information of a TCI;

[0422] Configuration information of advance acquisition of uplink synchronization.

[0423] As an optional embodiment, the LTM-related command sent by the secondary node includes a first candidate configuration identifier.

[0424] The first candidate configuration identifier is used to indicate the LTM candidate configuration information configured by the secondary node, or the first candidate configuration identifier is used to indicate the LTM candidate configuration information configured by the master node.

[0425] As an optional embodiment, the apparatus further includes:

[0426] A result sending unit, configured to send a measurement result corresponding to the LTM candidate configuration information to the secondary node after receiving the LTM candidate configuration information sent by the master node.

[0427] As an optional embodiment, the apparatus further comprises:

[0428] a storage unit, configured to store the LTM candidate configuration information in a separate variable, or configured to store the LTM candidate configuration information in a variable of a secondary cell group (SCG).

[0429] It should be noted that the terminal provided by the embodiments of the present disclosure is a terminal capable of performing the above-mentioned LTM processing method, and all embodiments of the LTM processing method are applicable to the terminal and can achieve the same or similar beneficial effects, which will not be repeated here.

[0430] As shown in FIG. 9, the embodiments of the present disclosure further provide an LTM processing apparatus, comprising:

[0431] a first sending unit 901, configured to send an LTM-related command to a terminal; the LTM-related command comprises second indication information, or the LTM-related command is a dedicated command for cross-CU LTM of a secondary cell group (SCG);

[0432] The second indication information is used to indicate that the LTM-related command applies LTM candidate configuration information sent by a master node, or the second indication information is used to indicate that the LTM-related command applies cross-CU LTM candidate configuration information of the secondary cell group (SCG).

[0433] As an optional embodiment, the LTM-related command comprises at least one of the following commands:

[0434] a command for notifying the terminal to perform timing advance (TA) advance acquisition;

[0435] a command for notifying the terminal to perform candidate cell transmission configuration indication (TCI) activation or deactivation;

[0436] a cell change command.

[0437] As an optional embodiment, the LTM-related command comprises a first candidate configuration identifier.

[0438] The first candidate configuration identifier is used to indicate LTM candidate configuration information of a secondary node configuration, or the first candidate configuration identifier is used to indicate LTM candidate configuration information of a master node configuration.

[0439] As an optional embodiment, the apparatus further comprises:

[0440] a result receiving unit, configured to receive a measurement result corresponding to the LTM candidate configuration information sent by the master node and sent by the terminal.

[0441] It should be noted that the secondary node provided in the embodiments of the present disclosure is a secondary node capable of performing the LTM processing method described above, and all embodiments of the LTM processing method are applicable to the secondary node and can achieve the same or similar beneficial effects, which will not be repeated here.

[0442] As shown in FIG. 10, the embodiments of the present disclosure also provide an LTM processing apparatus, comprising:

[0443] The second sending unit 1001 is configured to send LTM candidate configuration information to a terminal; the LTM candidate configuration information comprises first indication information; wherein the first indication information is used to indicate that the LTM candidate configuration information is cross-CU LTM candidate configuration information of a secondary cell group; or the first indication information is used to indicate that the LTM candidate configuration information is stored in a variable of cross-CU LTM candidate configuration of the secondary cell group.

[0444] Alternatively, the apparatus is configured to send LTM candidate configuration information to a terminal through a target information unit; wherein the target information unit is used to carry the cross-CU LTM candidate configuration information of the secondary cell group.

[0445] As an optional embodiment, the LTM candidate configuration information comprises at least one of the following information:

[0446] Configuration information of a candidate cell;

[0447] Configuration information of a layer 1 measurement reference signal;

[0448] Configuration information of a TCI;

[0449] Configuration information of early uplink synchronization.

[0450] It should be noted that the master node provided in the embodiments of the present disclosure is a master node capable of performing the LTM processing method described above, and all embodiments of the LTM processing method are applicable to the master node and can achieve the same or similar beneficial effects, which will not be repeated here.

[0451] It should be noted that the division of units in the embodiments of the present disclosure is illustrative, and is only a logical functional division. In actual implementation, another division mode can be used. In addition, each functional unit in each embodiment of the present disclosure can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0452] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a processor-readable storage medium. Based on such an understanding, the technical solutions of the present disclosure, essentially or in other words, the part that contributes to the related art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods described in the various embodiments of the present disclosure. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0453] It should be noted that the above-mentioned device provided by the embodiments of the present disclosure can realize all the method steps realized by the above-mentioned method embodiments, and can achieve the same technical effects. Here, the same parts and beneficial effects in the method embodiments will not be described in detail.

[0454] The embodiments of the present disclosure also provide a processor-readable storage medium, which stores a computer program for causing the processor to execute each process in the method embodiments described above and achieve the same technical effects. To avoid repetition, the processor-readable storage medium will not be described here. The processor-readable storage medium can be any available medium or data storage device accessible by a processor, including but not limited to a magnetic memory (such as a floppy disk, a hard disk, a magnetic tape, a magneto-optical disk (Magneto Optical, MO), etc.), an optical memory (such as a compact disc (Compact Disc, CD), a digital video disc (Digital Video Disc, DVD), a Blu-ray disc (Blu-ray Disc, BD), a high-definition versatile disc (High-definition Versatile Disc, HVD), etc.), and a semiconductor memory (such as a ROM, an erasable programmable read-only memory (Erasable Programmable Read-Only Memory, EPROM), an electrically erasable programmable read-only memory (Electrically Erasable Programmable read only memory, EEPROM), a non-volatile memory (NAND(Non-volatile Memory Device) FLASH), a solid state disk (Solid State Drives, SSD), etc.).

[0455] The embodiment of the disclosure further provides a computer program product comprising computer instructions which, when executed by a processor, implement each process in the method embodiment described above and achieve the same technical effects. To avoid repetition, details are not described herein.

[0456] Those skilled in the art should understand that the embodiments of the disclosure can be provided as a method, a system, or a computer program product. Therefore, the disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. In addition, the disclosure can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage, etc.) containing computer-usable program code.

[0457] The disclosure is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the disclosure. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of the flows and / or blocks in the flowcharts and / or block diagrams can be implemented by computer executable instructions. These computer executable instructions can be provided to a general purpose computer, a special purpose computer, an embedded processor, or other programmable data processing apparatus to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing apparatus produce a means for implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0458] These processor executable instructions can also be stored in a processor readable memory that can direct the computer or other programmable data processing apparatus to work in a specific manner, so that the instructions stored in the processor readable memory produce a product comprising instruction means, which implements the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0459] These processor executable instructions can also be loaded onto a computer or other programmable data processing apparatus, so that a series of operation steps are performed on the computer or other programmable apparatus to produce a computer implemented process, so that the instructions executed on the computer or other programmable apparatus provide steps for implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0460] Moreover, it should be noted that in the apparatus and method of the present disclosure, it is apparent that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions of the present disclosure. Moreover, the steps of performing the above series of processes can naturally be executed in time sequence according to the order of description, but do not necessarily have to be executed in time sequence, and some steps can be executed in parallel or independently of each other. It can be understood by those skilled in the art that all or any steps or components of the method and apparatus of the present disclosure can be implemented in hardware, firmware, software, or a combination thereof, in any computing device (including processors, storage media, etc.) or network of computing devices, using the basic programming skills of those skilled in the art upon reading the description of the present disclosure.

[0461] It should be noted that it should be understood that the division of each module above is only a logical division of functions, and in actual implementation, all or part of them can be integrated into one physical entity, or can be physically separated. Moreover, these modules can all be implemented in the form of being called by a processing element in software; all can be implemented in the form of hardware; or some modules can be implemented in the form of being called by a processing element in software, and some modules can be implemented in the form of hardware. For example, a certain module can be a separately established processing element, or can be integrated into a certain chip of the above apparatus, in addition, it can also be stored in the form of program code in the memory of the above apparatus, and called and executed by a certain processing element of the above apparatus to determine the function of the above module. The implementation of other modules is similar. Moreover, all or part of these modules can be integrated together, or can be independently implemented. The processing element described herein can be an integrated circuit having a signal processing capability. In the implementation process, each step of the above method or each of the above modules can be completed by the integrated logic circuit of hardware or the instruction of software in the processing element.

[0462] For example, each module, unit, subunit, or submodule can be one or more integrated circuits configured to implement the above methods, such as one or more application-specific integrated circuits (ASICs), one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs). As another example, when a module is implemented using processing element scheduler code, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor capable of calling program code. Furthermore, these modules can be integrated together to implement a system-on-a-chip (SOC).

[0463] The terms “first,” “second,” etc., used in this disclosure and in the claims are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this disclosure described herein may be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus. Additionally, the use of “and / or” in the specification and claims indicates at least one of the connected objects, such as A and / or B and / or C, indicating seven possibilities: A alone, B alone, C alone, and both A and B, both B and C, both A and C, and A, B, and C. Similarly, the use of “at least one of A and B” in this specification and claims should be understood as “A alone, B alone, or both A and B.”

[0464] Obviously, those skilled in the art can make various modifications and variations to this disclosure without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims of this disclosure and their equivalents, this disclosure is also intended to include such modifications and variations.

Claims

1. A Layer 1 / 2 triggered mobility (LTM) processing method, comprising: receiving, by a terminal, LTM candidate configuration information sent by a master node and LTM related command sent by a secondary node; determining, by the terminal, to apply the LTM candidate configuration information sent by the master node according to the LTM related command.

2. The method of claim 1, wherein, receiving, by the terminal, LTM candidate configuration information sent by a master node, comprising: receiving, by the terminal, the LTM candidate configuration information sent by the master node through a target information unit; wherein the target information unit is configured to carry LTM candidate configuration information of a cross-central unit (CU) of a secondary cell group.

3. The method of claim 1, wherein, the LTM candidate configuration information comprises first indication information; wherein the first indication information is configured to indicate that the LTM candidate configuration information is LTM candidate configuration information of a cross-CU of a secondary cell group; or the first indication information is configured to indicate that the LTM candidate configuration information is stored in a variable of LTM candidate configuration of a cross-CU of a secondary cell group.

4. The method according to any one of claims 1 to 3, wherein, the LTM related command comprises second indication information; wherein the second indication information is configured to indicate that the LTM related command applies LTM candidate configuration information sent by a master node; or the second indication information is configured to indicate that the LTM related command applies LTM candidate configuration information of a cross-CU of a secondary cell group.

5. The method according to any one of claims 1-3, wherein, the LTM related command is a dedicated command for LTM of a cross-CU of a secondary cell group.

6. The method of claim 1, wherein, the LTM related command comprises at least one of the following commands: a command for notifying the terminal to perform timing advance (TA) advance acquisition; a command for notifying the terminal to perform candidate cell transmission configuration indication (TCI) activation or deactivation; a cell change command.

7. The method of any one of claims 1-3, wherein, the LTM candidate configuration information comprises at least one of the following information: configuration information of a candidate cell; configuration information of a layer 1 measurement reference signal; configuration information of a TCI; configuration information of advance acquisition of uplink synchronization.

8. The method of claim 1, wherein, the LTM related command sent by the secondary node comprises a first candidate configuration identifier; the first candidate configuration identifier is configured to indicate LTM candidate configuration information configured by a secondary node; or the first candidate configuration identifier is configured to indicate LTM candidate configuration information configured by a master node.

9. The method of claim 1, wherein, the method further comprises: after receiving the LTM candidate configuration information sent by the master node, sending, by the terminal, a measurement result corresponding to the LTM candidate configuration information to the secondary node.

10. The method of any one of claims 1-3, wherein, the method further comprises: storing, by the terminal, the LTM candidate configuration information in a separate variable, or storing, by the terminal, the LTM candidate configuration information in a variable of a secondary cell group (SCG). 11.An LTM processing method, performed by a secondary node, comprising: sending, by the secondary node, an LTM related command to a terminal; the LTM related command comprises second indication information, or the LTM related command is a dedicated command for LTM of a cross-CU of a secondary cell group; wherein the second indication information is configured to indicate that the LTM related command applies LTM candidate configuration information sent by a master node, or the second indication information is configured to indicate that the LTM related command applies LTM candidate configuration information of a cross-CU of a secondary cell group.

12. The method of claim 11, wherein, The LTM-related command comprises at least one of the following commands: a command for notifying the terminal to perform timing advance (TA) advance acquisition; a command for notifying the terminal to perform candidate cell transmission configuration indication (TCI) activation or deactivation; a cell change command.

13. The method of claim 11, wherein, The LTM-related command comprises a first candidate configuration identifier. The first candidate configuration identifier is used to indicate LTM candidate configuration information of a secondary node configuration; or the first candidate configuration identifier is used to indicate LTM candidate configuration information of a master node configuration.

14. The method of any one of claims 11-13, wherein, The method further comprises: receiving measurement results corresponding to the LTM candidate configuration information sent by the master node and sent by the terminal.

15. An LTM processing method, performed by a master node, the method comprising: sending LTM candidate configuration information to a terminal; The LTM candidate configuration information comprises first indication information; wherein the first indication information is used to indicate that the LTM candidate configuration information is cross-central unit (CU) LTM candidate configuration information of a secondary cell group; or the first indication information is used to indicate that the LTM candidate configuration information is stored in a variable of cross-CU LTM candidate configuration of the secondary cell group. Or, sending LTM candidate configuration information to a terminal through a target information unit; wherein the target information unit is used to carry cross-CU LTM candidate configuration information of the secondary cell group.

16. The method of claim 15, wherein, The LTM candidate configuration information comprises at least one of the following information: configuration information of a candidate cell; configuration information of a layer 1 measurement reference signal; configuration information of a TCI; configuration information for advance acquisition of uplink synchronization.

17. A terminal comprising a memory, a transceiver, and a processor: a memory for storing a computer program; a transceiver for transceiving data under the control of the processor; a processor for reading the computer program in the memory and performing the following operations: receiving LTM candidate configuration information sent by a master node and LTM-related commands sent by a secondary node; determining to apply the LTM candidate configuration information sent by the master node according to the LTM-related commands.

18. The terminal of claim 17, wherein, The processor is further configured to read the computer program in the memory and perform the following operations: receiving the LTM candidate configuration information sent by the master node through a target information unit; wherein the target information unit is used to carry cross-central unit (CU) LTM candidate configuration information of a secondary cell group.

19. The terminal of claim 17, wherein, The LTM candidate configuration information comprises first indication information; wherein the first indication information is used to indicate that the LTM candidate configuration information is cross-CU LTM candidate configuration information of a secondary cell group; or the first indication information is used to indicate that the LTM candidate configuration information is stored in a variable of cross-CU LTM candidate configuration of the secondary cell group.

20. The terminal according to any of claims 17-19, wherein The LTM-related command comprises second indication information; wherein the second indication information is used to indicate that the LTM-related command applies LTM candidate configuration information sent by a master node; or the second indication information is used to indicate that the LTM-related command applies cross-CU LTM candidate configuration information of a secondary cell group.

21. The terminal according to any of claims 17-19, wherein The LTM-related command is a dedicated command for cross-CU LTM of a secondary cell group.

22. The terminal of claim 17, wherein, The LTM-related command comprises at least one of the following commands: a command for notifying the terminal to perform a timing advance (TA) advance acquisition; a command for notifying the terminal to perform candidate cell transmission configuration indication (TCI) activation or deactivation; a cell change command.

23. The terminal of any of claims 17-19, wherein, The LTM candidate configuration information comprises at least one of the following information: configuration information of a candidate cell; configuration information of a layer 1 measurement reference signal; configuration information of a TCI; configuration information of an advance uplink synchronization.

24. The terminal of claim 17, wherein, The LTM-related command sent by the secondary node comprises a first candidate configuration identifier; The first candidate configuration identifier is used to indicate LTM candidate configuration information configured by the secondary node, or the first candidate configuration identifier is used to indicate LTM candidate configuration information configured by the master node.

25. The terminal of claim 17, wherein, The processor is further configured to read the computer program in the memory and perform the following operations: After receiving the LTM candidate configuration information sent by the master node, the processor is further configured to send, to the secondary node, a measurement result corresponding to the LTM candidate configuration information.

26. The terminal of any of claims 17-19, wherein, The processor is further configured to read the computer program in the memory and perform the following operations: store the LTM candidate configuration information in a separate variable, or store the LTM candidate configuration information in a variable of a secondary cell group (SCG).

27. A secondary node comprising a memory, a transceiver, and a processor: The memory is configured to store a computer program; the transceiver is configured to transceive data under the control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations: send, to a terminal, an LTM-related command; the LTM-related command comprises second indication information, or the LTM-related command is a dedicated command for cross-CU LTM of a secondary cell group (SCG); wherein The second indication information is used to indicate that the LTM-related command applies to LTM candidate configuration information sent by a master node, or the second indication information is used to indicate that the LTM-related command applies to cross-CU LTM candidate configuration information of the SCG.

28. The secondary node of claim 27 wherein, The LTM-related command comprises at least one of the following commands: a command for notifying the terminal to perform a timing advance (TA) advance acquisition; a command for notifying the terminal to perform candidate cell transmission configuration indication (TCI) activation or deactivation; a cell change command.

29. The secondary node of claim 27, wherein, The LTM-related command comprises a first candidate configuration identifier; The first candidate configuration identifier is used to indicate LTM candidate configuration information configured by the secondary node, or the first candidate configuration identifier is used to indicate LTM candidate configuration information configured by the master node.

30. The secondary node of any of claims 27-29, wherein, The processor is further configured to read the computer program in the memory and perform the following operations: receive a measurement result corresponding to LTM candidate configuration information sent by a master node and sent by the terminal.

31. A master node comprising a memory, a transceiver, and a processor: a memory for storing the computer program; The transceiver is configured to transceive data under the control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations: sending, to a terminal, LTM candidate configuration information; the LTM candidate configuration information comprises first indication information; wherein the first indication information is used to indicate that the LTM candidate configuration information is cross-CU LTM candidate configuration information of a secondary cell group; or the first indication information is used to indicate that the LTM candidate configuration information is stored in a variable of cross-CU LTM candidate configuration of a secondary cell group; or, sending, to a terminal, LTM candidate configuration information through a target information unit; wherein the target information unit is used to carry the cross-CU LTM candidate configuration information of the secondary cell group.

32. The master node of claim 31, wherein, The LTM candidate configuration information comprises at least one of the following information: configuration information of a candidate cell; configuration information of a layer 1 measurement reference signal; configuration information of a TCI; configuration information of early uplink synchronization acquisition.

33. An LTM processing apparatus, comprising: a receiving unit configured to receive LTM candidate configuration information sent by a master node and LTM related commands sent by a secondary node; a determining unit configured to determine, according to the LTM related commands, to apply the LTM candidate configuration information sent by the master node.

34. An LTM processing apparatus, comprising: a first sending unit configured to send, to a terminal, LTM related commands; the LTM related commands comprise second indication information, or the LTM related commands are dedicated commands of cross-CU LTM of a secondary cell group; wherein the second indication information is used to indicate that the LTM related commands apply LTM candidate configuration information sent by a master node, or the second indication information is used to indicate that the LTM related commands apply cross-CU LTM candidate configuration information of a secondary cell group.

35. An LTM processing apparatus, comprising: a second sending unit configured to send, to a terminal, LTM candidate configuration information; the LTM candidate configuration information comprises first indication information; wherein the first indication information is used to indicate that the LTM candidate configuration information is cross-CU LTM candidate configuration information of a secondary cell group; or the first indication information is used to indicate that the LTM candidate configuration information is stored in a variable of cross-CU LTM candidate configuration of a secondary cell group; or, configured to send, to a terminal, LTM candidate configuration information through a target information unit; wherein the target information unit is used to carry the cross-CU LTM candidate configuration information of the secondary cell group.

36. A processor-readable storage medium, the processor-readable storage medium stores a program for causing the processor to execute the method of any one of claims 1 to 10, or the program for causing the processor to execute the method of any one of claims 11 to 14, or the program for causing the processor to execute the method of claim 15 or 16.

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