Cell handover processing method, device, apparatus, and medium

Abstract

Embodiments of the present disclosure relate to a cell handover processing method, a device, an apparatus, and a medium. According to the method, a first node receives first information, and, on the basis of the first information, determines a configuration ID available to the first node, or, on the basis of the first information, generates an RRC reconfiguration message and / or command for sending to a mobile terminal, so that it can be ensured that the configuration ID is associated with an LTM configuration of a unique cell, and it can be guaranteed that the mobile terminal can normally perform an operation related to cell handover.

Description

Method, device, apparatus and medium for processing cell switching

[0001] Cross-reference to related applications

[0002] The present disclosure claims priority to the Chinese patent application No. 202411086845.7, filed on August 8, 2024, entitled "Method, device, apparatus and medium for processing cell switching", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] Embodiments of the present disclosure relate to the field of communication technology, in particular to a method, device, apparatus and medium for processing cell switching. BACKGROUND

[0004] In a dual connectivity scenario, a user equipment (UE) can move within a master cell group (MCG) under a master node (MN) and perform lower-layer triggered mobility (LTM) switching, i.e., an intra MCG LTM scenario. The MN can perform LTM configuration for cells within the MCG and independently assign corresponding configuration IDs for the LTM configuration of the cells. Alternatively, the UE can also move within a secondary cell group (SCG) under a secondary node (SN) and perform LTM switching, i.e., an intra SCG LTM scenario. The SN can perform LTM configuration for cells within the MCG and independently assign corresponding configuration IDs for the LTM configuration of the cells. In another scenario, the UE can also switch from a cell under one SN to a cell under another SN, i.e., an inter SCG LTM scenario. In the inter SCG LTM scenario, the MN / SN not only performs configuration ID assignment for cells under its own node, but also performs configuration ID assignment for candidate cells under the SN. When the above three scenarios coexist, if the MN and the SN independently configure configuration IDs, different LTM configurations can use the same configuration ID, resulting in the UE being unable to associate to a unique set of LTM configurations according to the configuration ID, and thus the UE being unable to correctly perform switching operations. SUMMARY

[0005] To solve the above technical problems, embodiments of the present disclosure provide a method, device, apparatus and medium for processing cell switching.

[0006] A first aspect of the embodiments of the present disclosure provides a processing method of cell switching, comprising:

[0007] The first node receives first information, wherein the first node is a master node or a secondary node;

[0008] The first node determines a configuration identifier used by the first node according to the first information; or

[0009] The first node generates a radio resource control (RRC) reconfiguration message and / or a command for sending to a mobile terminal according to the first information.

[0010] In some embodiments, the first information comprises at least one of:

[0011] a starting value of the configuration identifier;

[0012] the starting value of the configuration identifier and a maximum number of the configuration identifier;

[0013] information of a configuration identifier used by a second node;

[0014] information of a configuration identifier that can be used by the first node;

[0015] a mapping relationship between a configuration identifier used by the second node and a cell identifier;

[0016] a configuration identifier used by the second node and an LTM configuration associated with the configuration identifier, the LTM configuration comprising at least one of: a measurement resource, a transmission configuration indicator (TCI) configuration, and an early timing advance (TA) resource;

[0017] wherein, when the first node is a master node, the second node is a secondary node, or when the first node is a secondary node, the second node is a master node.

[0018] In some embodiments, before the first node receives the first information, the method further comprises:

[0019] sending second information to the second node, the second information comprising at least one of:

[0020] information of a configuration identifier that has been used by the first node;

[0021] a number of configuration identifiers requested to be used by the first node;

[0022] information of a configuration identifier that has not been used by the first node.

[0023] In some embodiments, the first node generates the RRC reconfiguration message and / or the command for sending to the mobile terminal according to the first information, comprising:

[0024] The first node generates one or more of the following according to the first information, and sends the one or more to the mobile terminal:

[0025] configuration of the candidate cell;

[0026] command for switching to the target cell;

[0027] configuration information for early uplink synchronization of the candidate cell;

[0028] measurement reference signal related configuration information of the candidate cell;

[0029] TCI related configuration information of the candidate cell;

[0030] configuration identifier corresponding to the candidate cell.

[0031] In some embodiments, the method of the first aspect can further comprise:

[0032] The first node receives third information sent by the second node;

[0033] performing an operation related to cell switching based on the third information;

[0034] The third information comprises one or more of the following:

[0035] configuration identifier of the target cell;

[0036] TA value corresponding to the target cell;

[0037] cell identifier of the target cell;

[0038] TCI of the target cell;

[0039] random access channel (RACH) resource;

[0040] measurement result of the candidate cell.

[0041] A second aspect of the embodiments of the present disclosure provides a processing method for cell switching, comprising:

[0042] The second node sends first information to the first node;

[0043] The first information is used to determine a configuration identifier used by the first node; or is used to generate an RRC reconfiguration message and / or a command sent to the mobile terminal.

[0044] In some embodiments, the first information comprises at least one of the following:

[0045] starting value of the configuration identifier;

[0046] starting value of the configuration identifier and maximum number of the configuration identifier;

[0047] information of configuration identity used by the second node;

[0048] information of configuration identity used by the first node;

[0049] mapping relationship between configuration identity and cell identity used by the second node;

[0050] configuration identity used by the second node and LTM configuration associated with the configuration identity, the LTM configuration comprising at least one of: measurement resource, transmission configuration indicator (TCI) configuration, early timing advance (TA) resource.

[0051] In some embodiments, before the second node sends the first information to the first node, the method further comprises:

[0052] receiving second information sent by the first node, the second information comprising at least one of the following information:

[0053] information of configuration identity used by the first node;

[0054] number of configuration identities requested to be used by the first node;

[0055] information of configuration identity not used by the first node.

[0056] In some embodiments, the method of the second aspect can further comprise:

[0057] generating and sending, by the second node, one or more of the following to the mobile terminal:

[0058] configuration information for early acquisition of uplink synchronization of the candidate cell;

[0059] measurement reference signal related configuration information of the candidate cell;

[0060] TCI related configuration information of the candidate cell;

[0061] cell measurement instruction;

[0062] TA acquisition instruction;

[0063] instruction for pre-activating TCI;

[0064] configuration identity corresponding to the candidate cell.

[0065] In some embodiments, the method of the second aspect can further comprise:

[0066] sending, by the second node, third information to the first node, wherein the third information is related to a cell switching operation performed by the first node;

[0067] wherein the third information comprises one or more of the following:

[0068] a configuration identity of the target cell;

[0069] a TA value corresponding to the target cell;

[0070] a cell identity of the target cell;

[0071] a TCI of the target cell;

[0072] a random access channel (RACH) resource;

[0073] a measurement result of the candidate cell.

[0074] A third aspect of the embodiments of the present disclosure provides a processing method for cell switching, comprising:

[0075] receiving, by the mobile terminal, an RRC reconfiguration message and / or a command sent by the first node;

[0076] performing a related operation of cell switching based on the RRC reconfiguration message and / or the command.

[0077] In some embodiments, the RRC reconfiguration message and / or the command is generated according to first information. The first information comprises at least one of:

[0078] a starting value of the configuration identity;

[0079] the starting value of the configuration identity and a maximum number of the configuration identity;

[0080] information of the configuration identity used by the second node;

[0081] information of the configuration identity that can be used by the first node;

[0082] a mapping relationship between the configuration identity and a cell identity used by the second node;

[0083] the configuration identity used by the second node and an LTM configuration associated with the configuration identity, the LTM configuration comprising at least one of: a measurement resource, a transmission configuration indicator (TCI) configuration, and an early timing advance (TA) resource.

[0084] In some embodiments, the mobile terminal receives the RRC reconfiguration message and / or the command sent by the first node, comprising:

[0085] receiving one or more of the following sent by the first node:

[0086] a configuration of the candidate cell;

[0087] a command for switching to the target cell;

[0088] configuration information for early acquisition of uplink synchronization of the candidate cell;

[0089] measurement reference signal related configuration information of the candidate cell;

[0090] TCI related configuration information of the candidate cell;

[0091] a configuration identity corresponding to the candidate cell.

[0092] In some embodiments, the mobile terminal further receives one or more of the following sent by the second node, and performs an operation related to the cell switching based on the one or more:

[0093] configuration information of the candidate cell for early acquisition of uplink synchronization;

[0094] measurement reference signal related configuration information of the candidate cell;

[0095] TCI related configuration information of the candidate cell;

[0096] a cell measurement instruction;

[0097] a TA acquisition instruction;

[0098] an instruction for pre-activating a TCI;

[0099] a configuration identity corresponding to the candidate cell.

[0100] A fourth aspect of the embodiments of the present disclosure provides a network node, comprising:

[0101] a first memory, a first transceiver, and a first processor;

[0102] a first memory for storing a computer program, a first transceiver for transceiving data under control of the first processor, and a first processor for reading the computer program in the first memory and performing:

[0103] receiving first information through the first transceiver;

[0104] determining a configuration identity used by the network node according to the first information; or

[0105] generating a radio resource control (RRC) reconfiguration message and / or an instruction for sending to a mobile terminal according to the first information.

[0106] In some embodiments, the first information comprises at least one of the following:

[0107] a starting value of the configuration identity;

[0108] a starting value of the configuration identity and a maximum number of the configuration identity;

[0109] information of a configuration identity used by the second node;

[0110] information of configuration identities used by the network node;

[0111] mapping relationship between configuration identities and cell identities used by the second node;

[0112] configuration identities used by the second node and LTM configurations associated with the configuration identities, the LTM configurations comprising at least one of: measurement resource, transmission configuration indicator (TCI) configuration, early timing advance (TA) resource.

[0113] In some embodiments, the first processor is further configured to:

[0114] send, by the first transceiver, second information to the second node, the second information comprising at least one of:

[0115] information of configuration identities used by the network node;

[0116] number of configuration identities requested to be used by the network node;

[0117] information of configuration identities not used by the network node.

[0118] In some embodiments, the first processor is configured to:

[0119] generate, according to the first information, one or more of:

[0120] configuration of the candidate cell;

[0121] command for handover to the target cell;

[0122] configuration information for early uplink synchronization of the candidate cell;

[0123] measurement reference signal related configuration information of the candidate cell;

[0124] TCI related configuration information of the candidate cell;

[0125] configuration identity corresponding to the candidate cell.

[0126] In some embodiments, the first processor is further configured to:

[0127] receive, by the first transceiver, third information sent by the second node;

[0128] perform an operation related to cell handover based on the third information;

[0129] wherein the third information comprises one or more of:

[0130] a configuration identity of the target cell;

[0131] a TA value corresponding to the target cell;

[0132] a cell identity of the target cell;

[0133] a TCI of the target cell;

[0134] a random access channel (RACH) resource;

[0135] a measurement result of the candidate cell.

[0136] A fifth aspect of the embodiments of the present disclosure provides a network node, comprising:

[0137] a second memory, a second transceiver, and a second processor;

[0138] a second memory for storing a computer program, a second transceiver for transceiving data under control of the second processor, and a second processor for reading the computer program in the second memory and performing:

[0139] sending first information to a first node through the second transceiver;

[0140] the first information is used for determining a configuration identity used by the first node; or used for generating an RRC reconfiguration message and / or a command sent to a mobile terminal.

[0141] In some embodiments, the first information comprises at least one of:

[0142] a start value of the configuration identity;

[0143] a start value of the configuration identity and a maximum number of the configuration identity;

[0144] information of the configuration identity used by the network node;

[0145] information of the configuration identity that can be used by the first node;

[0146] a mapping relationship between the configuration identity and a cell identity used by the network node;

[0147] the configuration identity used by the network node and an LTM configuration associated with the configuration identity, the LTM configuration comprising at least one of: a measurement resource, a transmission configuration indicator (TCI) configuration, and an early timing advance (TA) resource.

[0148] In some embodiments, the second processor is further configured to:

[0149] receiving second information sent by the first node through the second transceiver, the second information comprising at least one of the following information:

[0150] information of configuration identities unused by the first node;

[0151] a number of configuration identities requested to be used by the first node;

[0152] information of configuration identities unused by the first node.

[0153] In some embodiments, the second processor is further configured to:

[0154] generate and send to the mobile terminal one or more of:

[0155] configuration information of early uplink synchronization of the candidate cell;

[0156] measurement reference signal related configuration information of the candidate cell;

[0157] TCI related configuration information of the candidate cell;

[0158] cell measurement instruction;

[0159] TA acquisition instruction;

[0160] instruction of pre-activating TCI;

[0161] configuration identity corresponding to the candidate cell.

[0162] In some embodiments, the second processor is further configured to:

[0163] send, by the second transceiver, third information to the first node, the third information being related to a cell switching operation performed by the first node;

[0164] wherein the third information comprises one or more of:

[0165] configuration identity of the target cell;

[0166] TA value corresponding to the target cell;

[0167] cell identity of the target cell;

[0168] TCI of the target cell;

[0169] random access channel (RACH) resource;

[0170] measurement result of the candidate cell.

[0171] A sixth aspect of the embodiments of the present disclosure provides a mobile terminal, comprising:

[0172] a third memory, a third transceiver, and a third processor; wherein the third memory, the third transceiver, and the third processor are respectively connected with the bus interface.

[0173] a third memory configured to store computer programs; a third transceiver configured to transceive data under control of the third processor; and a third processor configured to read the computer programs in the third memory and perform the following operations:

[0174] receiving, by the third transceiver, an RRC reconfiguration message and / or a command sent by the first node;

[0175] performing, based on the RRC reconfiguration message and / or the command, related operations of cell switching.

[0176] In some embodiments, the RRC reconfiguration message and / or the command is generated according to first information, the first information comprising at least one of:

[0177] a starting value of the configured identity;

[0178] a starting value of the configured identity and a maximum number of the configured identity;

[0179] information of the configured identity used by the second node;

[0180] information of the configured identity that can be used by the first node;

[0181] a mapping relationship between the configured identity and a cell identity used by the second node;

[0182] a configured identity used by the second node and an LTM configuration associated with the configured identity, the LTM configuration comprising at least one of: a measurement resource, a transmission configuration indicator, TCI, configuration, and an early timing advance, TA, resource.

[0183] In some embodiments, the third processor is configured to:

[0184] receiving, by the third transceiver, one or more of the following sent by the first node:

[0185] a configuration of a candidate cell;

[0186] a command to switch to a target cell;

[0187] configuration information for early acquisition of uplink synchronization of a candidate cell;

[0188] measurement reference signal related configuration information of a candidate cell;

[0189] TCI related configuration information of a candidate cell;

[0190] a configured identity corresponding to a candidate cell.

[0191] In some embodiments, the third processor is further configured to:

[0192] receive, by the third transceiver, one or more of the following sent by the second node, and perform operations related to the cell switching based on the one or more:

[0193] configuration information for early uplink synchronization acquisition of the candidate cell;

[0194] measurement reference signal related configuration information of the candidate cell;

[0195] TCI related configuration information of the candidate cell;

[0196] cell measurement instruction;

[0197] TA acquisition instruction;

[0198] instruction for pre-activating TCI;

[0199] configuration identifier corresponding to the candidate cell.

[0200] A seventh aspect of the embodiments of the present disclosure provides a processing device for cell switching, comprising:

[0201] a first receiving module configured to receive first information;

[0202] a determining module configured to determine, according to the first information, a configuration identifier used by the first node; or

[0203] a generating module configured to generate, according to the first information, a radio resource control (RRC) reconfiguration message and / or an instruction for sending to a mobile terminal.

[0204] An eighth aspect of the embodiments of the present disclosure provides a processing device for cell switching, comprising:

[0205] a sending module configured to send first information to a first node;

[0206] the first information is used to determine a configuration identifier used by the first node, or is used to generate an RRC reconfiguration message and / or an instruction for sending to a mobile terminal.

[0207] A ninth aspect of the embodiments of the present disclosure provides a processing device for cell switching, comprising:

[0208] a second receiving module configured to receive an RRC reconfiguration message and / or an instruction sent by the first node;

[0209] an executing module configured to perform operations related to cell switching based on the RRC reconfiguration message and / or the instruction.

[0210] A tenth aspect of the embodiments of the present disclosure provides a processor readable storage medium, which stores a program for causing a processor to execute the method of any one of the first to third aspects.

[0211] Compared with the related art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0212] In the embodiments of the present disclosure, the first node determines the available configuration identifier of itself according to the first information, or generates the RRC reconfiguration message and / or command for sending to the mobile terminal according to the first information, which can ensure that the configuration identifier is associated with the LTM configuration of a unique cell, and ensure that the mobile terminal can normally perform the related operation of cell switching. BRIEF DESCRIPTION OF DRAWINGS

[0213] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present disclosure and, together with the specification, serve to explain the principles of the present disclosure.

[0214] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the related art, the accompanying drawings needed to be used in the embodiments or related art description will be briefly introduced. Obviously, those skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0215] FIG. 1 is an interaction schematic diagram of a master node and a secondary node according to an embodiment of the present disclosure;

[0216] FIG. 2 is another interaction schematic diagram of a master node and a secondary node according to an embodiment of the present disclosure;

[0217] FIG. 3 is another interaction schematic diagram of a master node and a secondary node according to an embodiment of the present disclosure;

[0218] FIG. 4 is a structural schematic diagram of a network node according to an embodiment of the present disclosure;

[0219] FIG. 5 is another structural schematic diagram of a network node according to an embodiment of the present disclosure;

[0220] FIG. 6 is a structural schematic diagram of a mobile terminal according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0221] 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 relationships, for example, A and / or B can mean that there are three cases of A alone, A and B together, and B alone. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0222] In the embodiments of the present disclosure, the term "a plurality of" means two or more, and other quantifiers are similar.

[0223] With reference to the drawings of the embodiments of the present disclosure, the technical solutions in the embodiments of the present disclosure will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, and not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present disclosure.

[0224] In the related art, in a dual connectivity scenario, the MN and the SN can configure separate LTM configurations (including configuration information of the candidate cell itself (such as physical layer configuration information of the candidate cell), and candidate configuration information (such as measurement related configuration, transmission configuration indicator (TCI) related configuration, configuration information for early uplink synchronization, etc.)) for candidate cells covered by each of them (which can be understood as candidate cells for cell switching), and assign a unique configuration identifier to the LTM configuration of each candidate cell. Then the MN and the SN notify the mobile terminal to perform some processing related to the candidate configuration information through the respective corresponding medium access control layer control information (MAC CE) or physical downlink control channel order (PDDCH order), such as early timing advance (TA) acquisition, transmission configuration indicator (TCI) activation or execution of a cell switching procedure, etc.

[0225] In the related art, the LTM configuration configured by the MN is sent to the mobile terminal and stored in the mobile terminal in association with a variable or related configuration of the MN. The MN carries the configuration identifier through the MAC CE or PDDCH order of the MN to trigger the mobile terminal to perform cell switching, TCI early activation, early uplink synchronization, and other cell switching related processing procedures using the LTM configuration corresponding to the configuration identifier. The LTM configuration configured by the SN is sent to the mobile terminal and stored in the mobile terminal in association with a variable or related configuration of the SN. The SN carries the configuration identifier through the MAC CE or PDDCH order of the SN to trigger the mobile terminal to perform cell switching, TCI early activation, early uplink synchronization, and other cell switching related processing procedures using the LTM configuration corresponding to the configuration identifier.

[0226] It should be noted that in the related art, the LTM configuration and downlink command configured by the MN for the candidate cell under the MN can only be sent by the MN itself, and the LTM configuration and configuration identifier configured by the MN are also only stored in the variables or related configurations related to the MN in the mobile terminal. Similarly, the LTM configuration and downlink command configured by the SN for the candidate cell under the SN can only be sent by the SN, and the LTM configuration and configuration identifier configured by the SN are also only stored in the variables or related configurations related to the SN in the mobile terminal. Therefore, the MN and the SN can independently set a unique configuration identifier for the LTM configuration of each candidate cell.

[0227] However, with the evolution of technology, new scenarios have emerged, such as the mobile terminal switching from one SN (i.e., the source SN) to another SN (i.e., the target SN). In this case, the configuration identifier corresponding to the candidate cell under the target SN can be determined by the MN or the source SN, and can be sent to the mobile terminal by the MN and stored in the MN-related variables or configurations, or can be sent to the mobile terminal by the source SN and stored in the source SN-related variables or configurations. At this time, if different nodes still independently configure the configuration identifier corresponding to the cell, it will cause the LTM configurations of two different cells to correspond to the same configuration identifier, thereby causing the mobile terminal to fail to correctly perform the cell switching operation, for example:

[0228] Suppose the source SN decides the configuration identifier corresponding to the LTM configuration (SCG LTM configuration) of the candidate cell under the target SN, and the SCG LTM configuration is sent to the mobile terminal through the signaling of the MN and stored in the MN-related variables or configurations. If the MN and the source SN do not negotiate the range of the configuration identifier, the source SN may assign a configuration identifier that has been used by the MN (i.e., a configuration identifier assigned by the MN for the LTM configuration of a cell under its own node) to the candidate cell. In this way, after receiving the configuration identifier sent by the MN, the mobile terminal cannot determine whether it should switch in the cell under the MN or switch to the cell under the target SN.

[0229] Suppose the MN decides the configuration identifier corresponding to the SCG LTM configuration, and the source SN sends it to the mobile terminal. After receiving the SCG LTM configuration, the mobile terminal stores it in the source SN-related variables or configurations. If the MN and the source SN do not negotiate the range of the configuration identifier, the MN may assign a configuration identifier that has been used by the source SN (i.e., a configuration identifier assigned by the source SN for the LTM configuration of a cell under its own node) to the candidate cell. In this way, after receiving the configuration identifier sent by the source SN, the mobile terminal cannot determine whether it should switch to the cell under the SN or switch to the cell under another SN.

[0230] Assuming that the MN decides the configuration identifier corresponding to the SCG LTM configuration, the SCG LTM configuration is sent to the mobile terminal through the signaling of the MN, and the mobile terminal stores the SCG LTM configuration in the MN-related variable or configuration. The source SN sends related commands such as cell switching, cell measurement, etc. If the MN does not notify the mapping relationship between the configuration identifier and the measurement resource of the source SN, the source SN cannot correctly send the related commands.

[0231] Assuming that the source SN or the MN decides the configuration identifier corresponding to the SCG LTM configuration, the MN sends the cell configuration (such as the physical layer configuration), which is stored in the MN-related variable or configuration by the mobile terminal, and sends part of the related commands such as cell switching, etc. The source SN sends the measurement and / or the related configuration of the pre-acquired TA, which is stored in the source SN-related variable or configuration by the mobile terminal, and sends part of the related commands such as the acquired TA, cell measurement, etc. If the MN and the source SN do not negotiate the mapping relationship between the configuration identifier and the cell configuration and the source SN-side resource, the MN and the source SN cannot reach an agreement on the management of the cell.

[0232] To solve the above problems in the related art that the LTM configurations of different cells may use the same configuration identifier, thereby causing the mobile terminal to fail to associate to the LTM configuration of a unique cell through the configuration identifier, and further fail to normally perform the cell switching operation, the present embodiment provides a processing method for cell switching.

[0233] The method and device provided in the present embodiment are based on the same application concept. Since the principles of the method and device for solving the problems are similar, the implementation of the device and the method can be mutually referred to, and the repeated parts will not be described again.

[0234] The present embodiment will be described below in conjunction with exemplary embodiments.

[0235] For example, FIG. 1 is a schematic diagram of the interaction between a master node and a secondary node provided in the present embodiment. In the example shown in FIG. 1, the configuration identifier corresponding to the LTM configuration of the candidate cell (hereinafter referred to as the configuration identifier corresponding to the candidate cell) is decided by the MN, and the LTM configuration of the candidate cell and the corresponding configuration identifier are sent to the mobile terminal by the source SN. Referring to FIG. 1, the interaction between the MN and the source SN in the example shown in FIG. 1 includes the following steps:

[0236] Step 11. When switching to the cell in the target SN, the MN decides the number of candidate cells (i.e., the master secondary cell) under the target SN and the configuration identifier corresponding to each candidate cell.

[0237] The target SN can be exemplarily understood as a SN to which the target is switched. For example, from the source SN to another SN, the other SN is referred to as the target SN in the embodiments of the present disclosure.

[0238] The candidate cells can be obtained by the MN and the target SN through multiple interactions, and the interaction process can refer to related technologies, which will not be described here.

[0239] In step 12, the MN sends first information to the source SN, and the first information includes related information of the configuration identifier, which is used by the source SN to determine the configuration identifier that can be used for the LTM configuration of each cell under the node of the source SN.

[0240] For example, in some embodiments, the first information can be transmitted through an interface message. The interface message can be a secondary node addition request message (SN addition request message) or a secondary node modification request message (SN modification request message), but is not limited to the two request messages listed here.

[0241] The first information can include a starting value of the configuration identifier. For example, the MN decides or has pre-configured 3 candidate cells for cell switching, and the configuration identifiers used or to be used are 1, 2, and 3. At this time, the starting value of the configuration identifier can be configured as a value other than 1, 2, and 3, such as 4. Of course, this is only an example and is not the only limitation.

[0242] In other embodiments, the first information can include a starting value of the configuration identifier and a maximum number of the configuration identifier. For example, assuming that the starting value of the configuration identifier is 4 and the maximum number is 2, when the source SN allocates the configuration identifier for the LTM configuration of the cell under the node of the source SN, the configuration identifier that can be used can be 4 or a value greater than 4, such as 4 and 5. The maximum number of the configuration identifier can be directly carried in the first information, that is, an information element (IE) is included in the first information, and the information carried by the IE is the maximum number of the configurable configuration identifier; or it can be indirectly included in the interface message used to transmit the first information, for example, in the information block (M-NG-RAN node to S-NG-RAN node Container) sent by the MN to the source SN.

[0243] In some embodiments, the first information can include one or more configuration identifiers, which can be sent in the form of a list. The configuration identifiers can be used to represent the configuration identifiers of the LTM configuration currently used or to be used by the MN for the candidate cell, or the configuration identifiers that can be used by the source SN. That is, in some embodiments, the first information can include information of the configuration identifiers used by the MN, or information of the configuration identifiers that can be used by the source SN.

[0244] In some embodiments, the first information can further include a mapping relationship between the configuration identifiers used (used or to be used) by the MN and the cell identifiers (including the identifier of the candidate cell), or the configuration identifiers that can be used by the MN and the LTM configuration associated with the configuration identifiers, wherein the LTM configuration associated with the configuration identifiers can include at least one of the measurement resource, the TCI configuration, and the early TA resource.

[0245] That is, in some embodiments of the present disclosure, the first information can include at least one of the following:

[0246] a starting value of the configuration identifier;

[0247] a starting value of the configuration identifier and a maximum number of the configuration identifiers;

[0248] information of the configuration identifiers used by the MN;

[0249] information of the configuration identifiers that can be used by the source SN;

[0250] a mapping relationship between the configuration identifiers used by the MN and the cell identifiers;

[0251] the configuration identifiers used by the MN and the LTM configuration associated with the configuration identifiers, wherein the LTM configuration can include at least one of the measurement resource, the TCI configuration, and the early TA resource.

[0252] Step 13: sending the first information to the MN, the source SN determines the configuration identifiers used by the cells under its own node, and replies to the confirmation message.

[0253] If the source SN has configured the corresponding configuration identifiers for the cells under its own node, and the used configuration identifiers are not within the range indicated by the MN as available, or are duplicated with the configuration identifiers that the MN has or will configure for the candidate cell, the source SN can feed back a rejection message to the MN to reject the configuration identifiers determined by the MN according to the first information, or can reconfigure the corresponding configuration identifiers for the cells under its own node based on the first information. If the source SN rejects the configuration identifiers determined by the MN according to the first information, the source SN can reply to the range or list of the configuration identifiers suggested by the MN in the rejection message.

[0254] It should be noted that in the example shown in FIG. 1, the downlink command (such as cell handover, cell measurement, early TA acquisition, etc., but not limited to the commands listed here) sent to the mobile terminal can be sent by the MN or the source SN, and the RRC reconfiguration message can be sent by the MN to the mobile terminal or by the source SN to the mobile terminal.

[0255] By sending the first information to the source SN by the MN, the source SN determines the configuration identifier available to itself according to the related information carried in the first information, which can ensure that the configuration identifier is associated with the LTM configuration of a unique cell, and ensure that the mobile terminal can normally perform the cell handover related operation.

[0256] It should be noted that in some embodiments, the source SN can also determine the configuration identifier corresponding to the candidate cell, and the source MN sends the LTM configuration of the candidate cell and the corresponding configuration identifier to the mobile terminal. In this case, the source SN can send the first information to the MN, and the MN determines the configuration identifier used by itself according to the first information. The interface message used to deliver the first information can be a secondary node addition request message (SN addition request message) or a secondary node modification request message (SN modification request message), but not limited to the two request messages listed here. It should be noted that the specific implementation and beneficial effects of the source SN sending the first information to the MN and the MN determining the configuration identifier used by itself according to the first information are similar to those of the embodiment of FIG. 1, and will not be described here. That is, in some exemplary descriptions, the scheme of the source SN sending the first information and the MN determining the configuration identifier used by itself according to the first information, and the MN sending the first information and the source SN determining the configuration identifier used by itself according to the first information can be described as: a first node receives first information and determines a configuration identifier used by the first node according to the first information, wherein the first node can be the MN or the SN.

[0257] For example, in some embodiments, before the first node receives the first information, the first node can also send second information to the second node (when the first node is the MN, the second node can be understood as the source SN, or when the first node is the source SN, the second node can be understood as the MN) through the interface message, and the second node is notified by the second information to send the first information to the first node, wherein the second information can include one or more of the following:

[0258] Information of the configuration identifier already used by the first node;

[0259] The number of configuration identifiers requested to be used by the first node;

[0260] information of the configuration identity unused by the first node.

[0261] It should be noted that in the embodiments of the present disclosure, both the MN and the source SN can determine the configuration identity corresponding to the candidate cell, and can also independently configure the configuration identity corresponding to the cell under the node based on negotiation, so as to ensure that the configuration identity can be associated with the LTM configuration of a unique cell.

[0262] For example, FIG. 2 is another schematic diagram of the interaction between the master node and the secondary node provided by the embodiments of the present disclosure. In the example shown in FIG. 2, the source SN determines the configuration identity corresponding to the candidate cell, and the MN sends the RRC reconfiguration message to the mobile terminal. Referring to FIG. 2, the interaction between the MN and the source SN in the example shown in FIG. 2 includes the following steps:

[0263] Step 21, the source SN determines the candidate cell and the configuration identity corresponding to the candidate cell from the cells of the target SN.

[0264] The source SN determines the candidate cell from the cells of the target SN, which can be determined by the source SN after multiple interactions between the MN and the target SN. The interaction process can be referred to related technologies, and will not be described here.

[0265] Step 22, the source SN sends first information to the MN, which carries the related information of the configuration identity, for the MN to compose the RRC reconfiguration message. The first information can include the mapping relationship between the configuration identity currently used by the source SN and the cell identity (including the cell identity of the candidate cell).

[0266] The first information can be transmitted to the MN through an interface message (such as an Xn interface message, a secondary node addition request message, or a secondary node modification request message).

[0267] Step 23, the MN composes the RRC reconfiguration message according to the received first information and sends it to the mobile terminal.

[0268] The RRC reconfiguration message composed by the MN according to the received first information includes that the MN composes the RRC reconfiguration message according to the received first information and sends it to the mobile terminal, including:

[0269] The configuration of the candidate cell (i.e. the configuration of the candidate cell itself, such as the physical layer configuration);

[0270] The configuration information of the early acquisition of uplink synchronization of the candidate cell;

[0271] The measurement reference signal related configuration information of the candidate cell;

[0272] The TCI related configuration information of the candidate cell;

[0273] a configuration identity corresponding to the candidate cell.

[0274] It should be noted that in the example shown in FIG. 2, the downlink commands sent to the mobile terminal, such as cell measurement, cell handover, early TA acquisition, etc. can be sent by the MN or the source SN, which is not limited here.

[0275] The first information sent by the source SN to the MN carries the mapping relationship between the configuration identity currently used by the source SN and the cell identity. The MN forms an RRC reconfiguration message according to the first information and sends it to the mobile terminal. This can ensure that the configuration identity is associated with the LTM configuration information of a unique candidate cell, thereby ensuring the accuracy of the RRC reconfiguration message.

[0276] It should be noted that in some embodiments, the MN can also determine the configuration identity corresponding to the candidate cell, and the source MN sends the LTM configuration of the candidate cell and the corresponding configuration identity to the mobile terminal. The source SN sends downlink commands such as cell measurement, cell handover, early TA acquisition, etc. to the mobile terminal, but is not limited to the downlink commands listed here. The MN determines the configuration identity corresponding to the candidate cell, sends the LTM configuration of the candidate cell and the corresponding configuration identity, and the source SN sends downlink commands. The specific execution process and benefits of the way are similar to the embodiment shown in FIG. 2, which will not be repeated here.

[0277] For example, FIG. 3 is another interaction diagram of a master node and a secondary node provided by an embodiment of the present disclosure. In the example shown in FIG. 3, the MN and the source SN can each send part of the RRC reconfiguration message and part of the downlink command. As shown in FIG. 3, in some embodiments, the interaction between the MN and the source SN can include the following steps:

[0278] Step 31: The MN determines a candidate cell from the cells of the target SN and determines a configuration identity corresponding to the candidate cell, obtaining a mapping relationship between the configuration identity and the cell identity of the candidate cell.

[0279] The MN can determine the candidate cell from the cells of the target SN after multiple interactions between the MN and the target SN. The interaction process can be referred to in related technologies, which will not be repeated here.

[0280] The configuration identity corresponding to the candidate cell can be determined by the MN itself, or can be determined by the source SN based on the method similar to the embodiment of FIG. 1.

[0281] Step 32: The MN sends first information to the source SN, which includes related information of the configuration identity, for the source SN to confirm the configuration identity that can be used by the node configuration.

[0282] wherein the first information comprises a mapping relationship between the configuration identity and the cell identity of the candidate cell, or in some embodiments, the first information can further comprise at least one of the following:

[0283] a starting value of the configuration identity;

[0284] a starting value of the configuration identity and a maximum number of the configuration identity;

[0285] information of the configuration identity used by the MN;

[0286] information of the configuration identity used by the source SN;

[0287] the configuration identity used by the MN and the LTM configuration associated with the configuration identity, wherein the LTM configuration can comprise at least one of the following: measurement resource, TCI configuration, early TA resource.

[0288] Step 33: After receiving the first information, the source SN uses the same configuration identity for the LTM configuration of the same candidate cell.

[0289] Step 34: The MN and the source SN use the mapping relationship between the configuration identity and the cell identity of the candidate cell to generate respective RRC reconfiguration messages and / or instructions, and send them to the mobile terminal.

[0290] For example, for the MN side, the configuration identity of the candidate cell 1 is set to 1, and the RRC reconfiguration message of the MN side can contain one or more of the following information: configuration of the candidate cell 1, configuration information of the candidate cell for early acquisition of uplink synchronization, measurement reference signal related configuration information of the candidate cell, TCI related configuration information of the candidate cell, and configuration identity corresponding to the candidate cell. The instruction generated by the MN side can at least include a command for switching to the target cell. For the source SN side, the RRC reconfiguration message generated by the source SN side can contain one or more of the following information: configuration information of the candidate cell for early acquisition of uplink synchronization, measurement reference signal related configuration information of the candidate cell, and TCI related configuration information of the candidate cell. Based on the mapping relationship between the configuration identity and the cell identity of the candidate cell sent by the MN, the source SN side can send one or more of the following instructions to the mobile terminal: cell measurement instruction, TA acquisition instruction, pre-activation TCI instruction, and configuration identity corresponding to the candidate cell.

[0291] For example, in the case of sending a cell measurement instruction on the source SN side, the mobile terminal reports a measurement report to the source SN, and the source SN can also send a configuration identifier to the mobile terminal through a MAC CE to make the mobile terminal perform TCI pre-activation, or trigger the mobile terminal to obtain TA in advance through a PDCCH instruction. The source SN monitors the measurement results and makes a handover decision, and can send one or more of the TA value of the target cell, the configuration identifier of the target cell, the identifier of the target cell, the TCI of the target cell, the random access channel (RACH) resource, and the candidate cell measurement results to the MN through the XN interface. The MN sends a MAC CE to trigger the mobile terminal to perform cell handover.

[0292] The MN and the source SN use the mapping relationship between the same configuration identifier and the cell identifier of the candidate cell to respectively generate partial RRC reconfiguration messages and / or commands, and send the respective generated partial RRC reconfiguration messages and / or commands to the mobile terminal while carrying the same configuration identifier. The RRC reconfiguration messages and / or commands sent by the MN and the source SN can be associated with the LTM configuration of the same cell. For example, when the mobile terminal receives a cell handover command sent on the MN side, the TCI of the target cell and the configuration identifier corresponding to the target cell are carried. When the mobile terminal finds that the configuration information associated with the configuration identifier sent on the MN side and the target cell does not contain TCI-related configuration information, the mobile terminal applies the TCI-related configuration information associated with the same configuration identifier sent on the source SN side. If the mobile terminal finds that the configuration information of the target cell sent on the MN side contains TCI-related configuration information, the mobile terminal applies the TCI-related configuration information sent on the MN side. Here, TCI is taken as an example, but the TCI configuration information is not limited. Other configuration information not sent by the MN to the mobile terminal but sent by the source SN to the mobile terminal can be directly applied by the mobile terminal.

[0293] It should be noted that in the example shown in FIG. 3, the MN and the source SN only need to be based on the mapping relationship between the same configuration identifier and the cell identifier to ensure that the RRC reconfiguration messages and / or commands sent by the MN and the source SN are associated with the same cell or the same set of LTM configurations. It can not be limited whether the configuration identifier uniquely distinguishes a set of LTM configurations from the configuration identifier independently configured by the MN or the configuration identifier independently configured by the source SN.

[0294] It should also be noted that in some embodiments, the source SN can also determine the candidate cell and the configuration identifier corresponding to the candidate cell, and send the mapping relationship between the configuration identifier and the cell identifier of the candidate cell in the first information to the MN. The MN and the source SN jointly use the first information to respectively generate partial RRC reconfiguration messages and / or commands and send them to the mobile terminal, and the execution manner is similar to that of the embodiment of FIG. 3, which will not be described here.

[0295] That is, in an exemplary expression, the first node can receive first information, generate an RRC reconfiguration message and / or a command for sending to the mobile terminal according to the first information, wherein the first node can be the MN or the source SN, and the first node generates the RRC reconfiguration message and / or the command for sending to the mobile terminal according to the first information, which can exemplarily include generating (which can be exemplarily understood as obtaining or requesting relevant configurations from the candidate cell, generating the command) and sending one or more of the following: configurations of the candidate cell, a command for switching to the target cell, configuration information for the candidate cell to obtain uplink synchronization in advance, measurement reference signal related configuration information of the candidate cell, TCI related configuration information of the candidate cell, and a configuration identifier corresponding to the candidate cell. The second node (which can be the source SN when the first node is the MN, and which can be the MN when the first node is the source SN) can generate (which can be exemplarily understood as obtaining or requesting relevant configurations from the candidate cell, generating the command) one or more of the following: configuration information for the candidate cell to obtain uplink synchronization in advance, measurement reference signal related configuration information of the candidate cell, TCI related configuration information of the candidate cell, a cell measurement instruction, a TA acquisition instruction, a pre-activation TCI instruction, and a configuration identifier corresponding to the candidate cell, and send the one or more to the mobile terminal.

[0296] In the embodiments of the present disclosure, the MN and the source SN jointly use the first information to respectively generate part of the RRC reconfiguration message and / or the command, and send it to the mobile terminal, which can ensure that the RRC reconfiguration message and / or the command sent by the MN and the source SN are associated with the same cell or the same set of LTM configurations, and ensure the normal execution of cell switching.

[0297] FIG. 4 is a structural schematic diagram of a network node provided by an embodiment of the present disclosure, as shown in FIG. 4, the network node can include:

[0298] a first memory 41, a first transceiver 42, and a first processor 43, wherein the first memory 41, the first transceiver 42, and the first processor 43 are connected through a bus interface;

[0299] the first memory 41 is configured to store a computer program; the first transceiver 42 is configured to transceive data under the control of the first processor 43; and the first processor 43 is configured to read the computer program in the first memory 41 and perform:

[0300] receiving first information through the first transceiver 42;

[0301] determining a configuration identifier used by the network node according to the first information; or

[0302] According to the first information, a radio resource control (RRC) reconfiguration message and / or a command for sending to the mobile terminal are generated.

[0303] In some embodiments, the first information comprises at least one of:

[0304] a starting value of the configured identity;

[0305] a starting value of the configured identity and a maximum number of the configured identity;

[0306] information of the configured identity used by the second node;

[0307] information of the configured identity available for the network node to use;

[0308] a mapping relationship between the configured identity and a cell identity used by the second node;

[0309] a configured identity used by the second node and an LTM configuration associated with the configured identity, the LTM configuration comprising at least one of: measurement resource, transmission configuration indicator (TCI) configuration, early timing advance (TA) resource.

[0310] In some embodiments, the first processor 43 is further configured to:

[0311] send, by the first transceiver 42, second information to the second node, the second information comprising at least one of the following information:

[0312] information of the configured identity used by the network node;

[0313] a number of the configured identity requested to be used by the network node;

[0314] information of the configured identity not used by the network node.

[0315] In some embodiments, the first processor 43 is configured to:

[0316] generate one or more of the following according to the first information, and send the one or more to the mobile terminal:

[0317] a configuration of the candidate cell;

[0318] a command to hand over to a target cell;

[0319] configuration information for early acquisition of uplink synchronization of the candidate cell;

[0320] measurement reference signal related configuration information of the candidate cell;

[0321] TCI related configuration information of the candidate cell;

[0322] A configuration identifier corresponding to the candidate cell.

[0323] In some embodiments, the first processor 43 is further configured to:

[0324] receive, by the first transceiver 42, third information sent by a second node;

[0325] perform an operation related to cell switching based on the third information;

[0326] The third information includes one or more of the following:

[0327] A configuration identifier of a target cell;

[0328] A TA value corresponding to the target cell;

[0329] A cell identifier of the target cell;

[0330] A TCI of the target cell;

[0331] A random access channel (RACH) resource;

[0332] A measurement result of the candidate cell.

[0333] The network node shown in FIG. 4 can exemplarily perform the method performed by the first node in the above examples, and the execution manner and beneficial effects are similar, which will not be described here again.

[0334] For example, FIG. 5 is a structural schematic diagram of another network node provided by an embodiment of the present disclosure. As shown in FIG. 5, the network node can include:

[0335] A second memory 51, a second transceiver 52, and a second processor 53, wherein the second memory 51, the second transceiver 52, and the second processor 53 are connected through a bus interface;

[0336] The second memory 51 is configured to store a computer program; the second transceiver 52 is configured to transceive data under the control of the second processor 53; and the second processor 53 is configured to read the computer program in the second memory 51 and perform:

[0337] send, by the second transceiver 52, first information to a first node;

[0338] The first information is used to determine a configuration identifier used by the first node; or used to generate a radio resource control (RRC) reconfiguration message and / or a command sent to a mobile terminal.

[0339] In some embodiments, the first information includes at least one of the following:

[0340] A starting value of the configuration identifier;

[0341] a start value of the configured identity and a maximum number of the configured identity;

[0342] information of the configured identity used by the network node;

[0343] information of the configured identity used by the first node;

[0344] a mapping relationship between the configured identity and a cell identity used by the network node;

[0345] a configured identity used by the network node and an LTM configuration associated with the configured identity, the LTM configuration comprising at least one of: measurement resource, transmission configuration indicator, TCI, configuration, early timing advance, TA, resource.

[0346] In some embodiments, the second processor 53 is further configured to:

[0347] receive, by the second transceiver 52, second information sent by the first node, the second information comprising at least one of:

[0348] information of the configured identity used by the first node;

[0349] a number of the configured identity requested to be used by the first node;

[0350] information of the configured identity not used by the first node.

[0351] In some embodiments, the second processor 53 is further configured to:

[0352] generate and send, to the mobile terminal, one or more of:

[0353] configuration information of early uplink synchronization of the candidate cell;

[0354] measurement reference signal related configuration information of the candidate cell;

[0355] TCI related configuration information of the candidate cell;

[0356] cell measurement instruction;

[0357] TA acquisition instruction;

[0358] instruction of pre-activating TCI;

[0359] a configured identity corresponding to the candidate cell.

[0360] In some embodiments, the second processor 53 is further configured to:

[0361] sending third information to the first node through the second transceiver 52, the third information being related to a cell switching operation performed by the first node:

[0362] wherein the third information comprises one or more of the following:

[0363] a configuration identity of the target cell;

[0364] a TA value corresponding to the target cell;

[0365] a cell identity of the target cell;

[0366] a TCI of the target cell;

[0367] a random access channel (RACH) resource;

[0368] a measurement result of the candidate cell.

[0369] The network node shown in FIG. 5 can exemplarily perform the method performed by the second node described above, and has similar implementation manners and beneficial effects, which will not be described here again.

[0370] FIG. 6 is a structural schematic diagram of a mobile terminal according to an embodiment of the present disclosure. As shown in FIG. 6, the mobile terminal comprises:

[0371] a third memory 61, a third transceiver 62, and a third processor 63, wherein the third memory 61, the third transceiver 62, and the third processor 63 are respectively connected with the bus interface.

[0372] The third memory 61 is configured to store a computer program; the third transceiver 62 is configured to transceive data under the control of the third processor 63; and the third processor 63 is configured to read the computer program in the third memory 61 and perform the following operations:

[0373] receiving, through the third transceiver, an RRC reconfiguration message and / or a command sent by the first node;

[0374] wherein the RRC reconfiguration message and / or the command comprises a configuration identity determined by the first node based on the received first information, or the RRC reconfiguration message and / or the command is generated by the first node based on the first information;

[0375] performing a related operation of cell switching based on the RRC reconfiguration message and / or the command.

[0376] In some embodiments, the first information comprises at least one of the following:

[0377] a starting value of the configuration identity;

[0378] a start value of the configuration identifier and a maximum number of the configuration identifiers;

[0379] information of the configuration identifier used by the second node;

[0380] information of the configuration identifier used by the first node;

[0381] a mapping relationship between the configuration identifier and a cell identifier used by the second node;

[0382] a configuration identifier used by the second node and an LTM configuration associated with the configuration identifier, the LTM configuration comprising at least one of: measurement resource, transmission configuration indicator (TCI) configuration, early timing advance (TA) resource.

[0383] In some embodiments, the third processor 63 is configured to:

[0384] receive, by the third transceiver, one or more of the following sent by the first node:

[0385] a configuration of the candidate cell;

[0386] an instruction to handover to a target cell;

[0387] configuration information of early uplink synchronization acquisition of the candidate cell;

[0388] measurement reference signal related configuration information of the candidate cell;

[0389] TCI related configuration information of the candidate cell;

[0390] a configuration identifier corresponding to the candidate cell.

[0391] In some embodiments, the third processor 63 is further configured to:

[0392] receive, by the third transceiver, one or more of the following sent by the second node:

[0393] configuration information of early uplink synchronization acquisition of the candidate cell;

[0394] measurement reference signal related configuration information of the candidate cell;

[0395] TCI related configuration information of the candidate cell;

[0396] a cell measurement instruction;

[0397] a TA acquisition instruction;

[0398] an instruction to pre-activate a TCI;

[0399] a configuration identifier corresponding to the candidate cell.

[0400] In FIG. 6, the bus interface can include any number of interconnecting buses and bridges, and various circuitry that links the various circuits together, such as the processor(s) and the memory represented by the various circuits. The bus interface can also link various other circuits such as peripheral devices, voltage regulators and power management circuitry, all of which are well known in the art, thus, not further described herein. The bus interface provides an interface. The transceiver can be a plurality of elements, including a transmitter and a receiver, that provides a unit for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, and the like. The user interface 64 can also be an interface that can be external or internal to the device, for connecting various devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like, for different user equipment.

[0401] The processor is responsible for managing the bus architecture and general processing, and the memory can store data used by the processor in performing operations.

[0402] Optionally, the processor can be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD (Complex Programmable Logic Device), and the processor can also adopt a multi-core architecture.

[0403] The processor can call a program stored in the memory to execute 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 physically arranged separately.

[0404] The mobile terminal provided by the embodiments of FIG. 6 can execute the method performed by the mobile terminal in the above-mentioned method embodiments, and the execution manner and beneficial effects are similar, and will not be described here.

[0405] For example, the embodiments of the present disclosure also provide a processing apparatus for cell switching, comprising:

[0406] The first receiving module is configured to receive first information.

[0407] The determining module is configured to determine a configuration identifier used by the first node according to the first information; or

[0408] The generating module is configured to generate a radio resource control (RRC) reconfiguration message and / or a command for sending to the mobile terminal according to the first information.

[0409] The processing apparatus can perform the method performed by the first node in the above-mentioned embodiments, and has similar implementation manners and effects, which will not be described here again.

[0410] In an example, the embodiments of the present disclosure further provide a processing apparatus for cell switching, comprising:

[0411] The sending module is configured to send first information to the first node.

[0412] The first information is used to determine the configuration identifier used by the first node, or is used to generate a radio resource control (RRC) reconfiguration message and / or command sent to the mobile terminal.

[0413] The processing apparatus can perform the method performed by the second node in the above-mentioned embodiments, and has similar implementation manners and effects, which will not be described here again.

[0414] In an example, the embodiments of the present disclosure further provide a processing apparatus for cell switching, comprising:

[0415] The second receiving module is configured to receive the RRC reconfiguration message and / or command sent by the first node.

[0416] The RRC reconfiguration message and / or command can include the configuration identifier, which can be determined by the first node based on the received first information, or the RRC reconfiguration message and / or command can be generated by the first node based on the first information.

[0417] The execution module is configured to perform the related operation of cell switching based on the RRC reconfiguration message and / or command.

[0418] The processing apparatus can perform the method performed by the mobile terminal in the above-mentioned embodiments, and has similar implementation manners and effects, which will not be described here again.

[0419] It should be noted that the processing apparatus for cell switching provided by the embodiments of the present disclosure can implement the method steps of the above-mentioned method embodiments, and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described here again.

[0420] It should be further noted that the division of units in the processing apparatus for cell switching is illustrative, and is only a logical functional division. In actual implementation, another division manner 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.

[0421] 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 a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in the various embodiments of the present disclosure.

[0422] The present disclosure also provides a processor-readable storage medium storing a program for causing a processor to execute the method of any of the method embodiments.

[0423] In the embodiments of the present disclosure, the processor-readable storage medium described above can be any available medium or data storage device that the processor can access, including but not limited to a magnetic storage (such as a floppy disk, a hard disk, a magnetic tape, a magneto-optical disk (MO), etc.), an optical storage (such as a CD, a DVD, a BD, a HVD, etc.), and a semiconductor memory (such as a ROM, an EPROM, an EEPROM, a non-volatile memory (NAND FLASH), a solid-state disk (SSD)), etc.

[0424] Those skilled in the art should understand that the embodiments of the present disclosure can be provided as a method, a system, or a computer program product. Therefore, the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the embodiments of the present disclosure can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to a magnetic disk storage and an optical storage, etc.) containing computer-usable program code.

[0425] The present disclosure is described with reference to the flowcharts and / or block diagrams according to the embodiments of the present disclosure. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of 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 devices to produce a machine, so that the instructions executed by the computer or other programmable data processing devices produce the device that implements the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0426] These processor-executable instructions can also be loaded into the processor-readable memory of the computer or other programmable data processing devices, so that the computer or other programmable data processing devices can work in a specific way, so that the instructions stored in the processor-readable memory produce a manufactured product including instruction devices, which realize the functions specified in one or more flows of the flow chart and / or one or more blocks of the block diagram.

[0427] Obviously, those skilled in the art can make various modifications and variations to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalent technologies, the present disclosure also intends to include these modifications and variations.

Claims

1. A method of handling cell handover, wherein, The method comprises: The first node receives first information, wherein the first node is a master node or a secondary node; The first node determines configuration identifiers used by the first node according to the first information; or The first node generates a radio resource control (RRC) reconfiguration message and / or a command for sending to a mobile terminal according to the first information.

2. The method of claim 1, wherein, The first information comprises at least one of: a starting value of the configuration identifier; a starting value of the configuration identifier and a maximum number of the configuration identifier; information of configuration identifiers used by a second node; information of configuration identifiers available to the first node; a mapping relationship between configuration identifiers used by the second node and cell identifiers; configuration identifiers used by the second node and LTM configurations associated with the configuration identifiers, the LTM configurations comprising at least one of: measurement resources, transmission configuration indicator (TCI) configurations, early timing advance (TA) resources; wherein, when the first node is a master node, the second node is a secondary node, or when the first node is a secondary node, the second node is a master node.

3. The method of claim 1 or 2, wherein, Before the first node receives the first information, the method further comprises: sending second information to a second node, the second information comprising at least one of: information of configuration identifiers already used by the first node; a number of configuration identifiers requested to be used by the first node; information of configuration identifiers not used by the first node.

4. The method of claim 1, wherein, The first node generates a radio resource control (RRC) reconfiguration message and / or a command for sending to a mobile terminal according to the first information, comprising: The first node generates one or more of the following according to the first information and sends the one or more to the mobile terminal: configuration of a candidate cell; a command to switch to a target cell; configuration information for early acquisition of uplink synchronization of a candidate cell; measurement reference signal related configuration information of a candidate cell; TCI related configuration information of a candidate cell; a configuration identifier corresponding to a candidate cell.

5. The method of claim 1, wherein, The method further comprises: The first node receives third information sent by a second node; performing an operation related to a cell switch based on the third information; wherein the third information comprises one or more of: a configuration identifier of a target cell; a TA value corresponding to a target cell; a cell identifier of a target cell; a TCI of a target cell; a random access channel (RACH) resource; a measurement result of a candidate cell.

6. A method of handling cell change, wherein, The method comprises: The second node sends first information to the first node; The first information is used to determine configuration identifiers used by the first node; or is used to generate a radio resource control (RRC) reconfiguration message and / or a command for sending to a mobile terminal.

7. The method of claim 6, wherein, The first information comprises at least one of: a starting value of the configuration identifier; a starting value of the configuration identifier and a maximum number of the configuration identifier; information of configuration identifiers used by the second node; information of configuration identifiers available to the first node; a mapping relationship between configuration identifiers used by the second node and cell identifiers; The configuration identifier used by the second node and the LTM configuration associated with the configuration identifier, the LTM configuration comprising at least one of: measurement resource, transmission configuration indicator (TCI) configuration, early timing advance (TA) resource.

8. The method of claim 6 or 7, wherein, Before the second node sends the first information to the first node, the method further comprises: receiving second information sent by the first node, the second information comprising at least one of: information of the configuration identifier used by the first node; the number of configuration identifiers requested to be used by the first node; information of the configuration identifier not used by the first node.

9. The method of claim 6, wherein, The method further comprises: The second node generates one or more of the following and sends the one or more to the mobile terminal: configuration information for early acquisition of uplink synchronization of the candidate cell; measurement reference signal related configuration information of the candidate cell; TCI related configuration information of the candidate cell; cell measurement instruction; TA acquisition instruction; instruction for pre-activating TCI; configuration identifier corresponding to the candidate cell.

10. The method of claim 6, wherein, The method further comprises: The second node sends third information to the first node, the third information being related to a cell switching operation performed by the first node; wherein the third information comprises one or more of: configuration identifier of the target cell; TA value corresponding to the target cell; cell identifier of the target cell; TCI of the target cell; random access channel (RACH) resource; measurement result of the candidate cell.

11. A method of handling cell change, wherein, The method comprises: The mobile terminal receives an RRC reconfiguration message and / or instruction sent by the first node; performing a related operation of cell switching based on the RRC reconfiguration message and / or instruction.

12. The method of claim 11, wherein, The RRC reconfiguration message and / or instruction is generated according to first information, the first information comprising at least one of: starting value of the configuration identifier; starting value of the configuration identifier and maximum number of configuration identifiers; information of the configuration identifier used by the second node; information of the configuration identifier that can be used by the first node; mapping relationship between the configuration identifier used by the second node and the cell identifier; The LTM configuration associated with the configuration identifier used by the second node, the LTM configuration comprising at least one of: measurement resource, transmission configuration indicator (TCI) configuration, early timing advance (TA) resource.

13. The method of claim 11 or 12, wherein, The mobile terminal receives an RRC reconfiguration message and / or instruction sent by the first node, comprising: receiving one or more of the following sent by the first node: configuration of the candidate cell; instruction to switch to the target cell; configuration information for early acquisition of uplink synchronization of the candidate cell; measurement reference signal related configuration information of the candidate cell; TCI related configuration information of the candidate cell; configuration identifier corresponding to the candidate cell.

14. The method of claim 11, wherein, The method further comprises: receiving one or more of the following sent by the second node, and performing an operation related to cell switching based on the one or more: configuration information for early acquisition of uplink synchronization of the candidate cell; measurement reference signal related configuration information of the candidate cell; TCI related configuration information of the candidate cell; cell measurement instruction; TA acquisition instruction; instruction for pre-activating TCI; A configuration identifier corresponding to the candidate cell.

15. A network node, wherein, Comprise: A first memory, a first transceiver, a first processor; The first memory is configured to store computer programs; The first transceiver is configured to transceive data under the control of the first processor; The first processor is configured to read computer programs in the first memory and execute: Receiving first information through the first transceiver; According to the first information, determining the configuration identifier used by the network node; or, According to the first information, generating a radio resource control (RRC) reconfiguration message and / or a command for sending to a mobile terminal.

16. The network node of claim 15, wherein, The first information includes at least one of: The starting value of the configuration identifier; The starting value of the configuration identifier and the maximum number of configuration identifiers; Information of configuration identifiers used by the second node; Information of configuration identifiers that can be used by the network node; Mapping relationship between the configuration identifier used by the second node and the cell identifier; The configuration identifier used by the second node and the LTM configuration associated with the configuration identifier, the LTM configuration comprising at least one of: measurement resource, transmission configuration indicator (TCI) configuration, early timing advance (TA) resource.

17. The network node of claim 15 or 16, wherein, The first processor is further configured to: Send second information to the second node through the first transceiver, the second information including at least one of the following information: Information of configuration identifiers already used by the network node; The number of configuration identifiers requested to be used by the network node; Information of configuration identifiers not used by the network node.

18. The network node of claim 15, wherein, The first processor is configured to: According to the first information, generate one or more of the following and send them to the mobile terminal: Configuration of the candidate cell; Command to switch to the target cell; Configuration information for early acquisition of uplink synchronization of the candidate cell; Measurement reference signal related configuration information of the candidate cell; TCI related configuration information of the candidate cell; Configuration identifier corresponding to the candidate cell.

19. The network node of claim 15, wherein, The first processor is further configured to: Receive third information sent by the second node through the first transceiver; Based on the third information, perform operations related to cell switching; The third information includes one or more of the following: Configuration identifier of the target cell; TA value corresponding to the target cell; Cell identifier of the target cell; TCI of the target cell; Random access channel (RACH) resource; Measurement result of the candidate cell.

20. A network node, wherein, Comprise: A second memory, a second transceiver, a second processor; The second memory is configured to store computer programs; The second transceiver is configured to transceive data under the control of the second processor; The second processor is configured to read computer programs in the second memory and execute: Send first information to the first node through the second transceiver; The first information is used to determine the configuration identifier used by the first node; or used to generate a radio resource control (RRC) reconfiguration message and / or a command for sending to a mobile terminal.

21. The network node of claim 20, wherein, The first information includes at least one of: The starting value of the configuration identifier; The starting value of the configuration identifier and the maximum number of configuration identifiers; Information of configuration identifiers used by the network node; Information of configuration identifiers that can be used by the first node; A mapping relationship between a configuration identity used by the network node and a cell identity; A configuration identity used by the network node and an LTM configuration associated with the configuration identity, the LTM configuration comprising at least one of: measurement resource, transmission configuration indicator (TCI) configuration, early timing advance (TA) resource.

22. The network node of claim 20 or 21, wherein, The second processor is further configured to: receive, by the second transceiver, second information sent by the first node, the second information comprising at least one of: information of a configuration identity used by the first node; a number of configuration identities requested to be used by the first node; information of a configuration identity not used by the first node.

23. The network node of claim 20, wherein, The second processor is further configured to: generate and send, to a mobile terminal, one or more of: configuration information for early uplink synchronization of a candidate cell; measurement reference signal related configuration information of a candidate cell; TCI related configuration information of a candidate cell; a cell measurement instruction; a TA acquisition instruction; a pre-activated TCI instruction; a configuration identity corresponding to a candidate cell.

24. The network node of claim 20, wherein, The second processor is further configured to: send, by the second transceiver, third information to the first node, the third information being related to a cell switching operation performed by the first node; wherein the third information comprises one or more of: a configuration identity of a target cell; a TA value corresponding to a target cell; a cell identity of a target cell; a TCI of a target cell; a random access channel (RACH) resource; a measurement result of a candidate cell.

25. A mobile terminal, wherein, comprises: a third memory, a third transceiver, and a third processor; a third memory for storing a computer program; a third transceiver for transceiving data under control of the third processor; a third processor for reading a computer program in the third memory and performing the following operations: receive, by the third transceiver, an RRC reconfiguration message and / or an instruction sent by a first node; perform a related operation of cell switching based on the RRC reconfiguration message and / or the instruction.

26. The mobile terminal of claim 25, wherein, The RRC reconfiguration message and / or the instruction is generated according to first information, the first information comprising at least one of: a starting value of a configuration identity; a starting value of a configuration identity and a maximum number of configuration identities; information of a configuration identity used by a second node; information of a configuration identity usable by the first node; a mapping relationship between a configuration identity used by the second node and a cell identity; a configuration identity used by the second node and an LTM configuration associated with the configuration identity, the LTM configuration comprising at least one of: measurement resource, transmission configuration indicator (TCI) configuration, early timing advance (TA) resource.

27. The mobile terminal of claim 25 or 26, wherein, The third processor is configured to: receive, by the third transceiver, one or more of the following sent by the first node: a configuration of a candidate cell; an instruction to switch to a target cell; configuration information for early uplink synchronization of a candidate cell; measurement reference signal related configuration information of a candidate cell; TCI related configuration information of a candidate cell; a configuration identity corresponding to a candidate cell.

28. The mobile terminal of claim 25, wherein, The third processor is further configured to: receiving, by the third transceiver, one or more of the following sent by the second node, and performing an operation related to a cell handover based on the one or more: configuration information of early uplink synchronization of a candidate cell; measurement reference signal related configuration information of the candidate cell; TCI related configuration information of the candidate cell; a cell measurement instruction; a TA acquisition instruction; an instruction of pre-activating a TCI; a configuration identifier corresponding to the candidate cell.

29. A processing device for cell handover, wherein, comprising: a first receiving module configured to receive first information; a determining module configured to determine, according to the first information, a configuration identifier used by a first node; or, a generating module configured to generate, according to the first information, a radio resource control (RRC) reconfiguration message and / or an instruction for sending to a mobile terminal.

30. A processing device for cell handover, wherein, comprising: a sending module configured to send first information to a first node; the first information is used to determine a configuration identifier used by the first node; or used to generate a radio resource control (RRC) reconfiguration message and / or an instruction for sending to a mobile terminal.

31. A processing device for cell handover, wherein, comprising: a second receiving module configured to receive an RRC reconfiguration message and / or an instruction sent by a first node; an executing module configured to perform an operation related to a cell handover based on the RRC reconfiguration message and / or the instruction.

32. A processor-readable storage medium, wherein, The processor readable storage medium stores a program for causing the processor to perform the method of any one of claims 1-5 or 6-10 or 11-14.

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