LTM configuration transmission method, apparatus, device, storage medium, and program product

Abstract

The present invention provides an LTM configuration transmission method, an apparatus, a device, a storage medium, and a program product. The method comprises: a first network device receiving LTM configuration information sent by one or more second network devices, wherein the LTM configuration information comprises at least one of the following: first information related to a measurement resource configuration, second information related to advance synchronization, a reference configuration of LTM, a first configuration instruction or a first configuration instruction list, a first configuration identifier or a first configuration identifier mapping list, and third information related to a resource report configuration.

Description

LTM configuration transmission method, apparatus, device, storage medium and program product

[0001] Cross-reference to Related Applications

[0002] The present disclosure claims priority from Chinese Patent Application No. 202411088521.7 filed on August 09, 2024 in China, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present disclosure relates to the field of communication technology, and particularly relates to an LTM configuration transmission method, apparatus, device, storage medium and program product. BACKGROUND

[0004] With the development of communication technology, there are multiple cell switching modes for a terminal device (User Equipment, UE). Since the layer 1 / layer 2 triggered mobility (L1 / L2 Triggered Mobility, LTM) switching mechanism can improve the switching speed of the UE between cells and reduce the switching time delay and data interruption time, it is widely used at present.

[0005] However, the current LTM switching mechanism mainly faces the switching scenarios of a single distributed unit (distributed unit, DU) within a base station and the switching scenarios between DUs within a base station, and does not support LTM switching across base stations. SUMMARY

[0006] In view of the problems in the prior art, the embodiments of the present disclosure provide an LTM configuration transmission method, apparatus, device, storage medium and program product, which can guarantee LTM switching of a UE across base stations.

[0007] In a first aspect, the embodiments of the present disclosure provide an LTM configuration transmission method applied to a first network device, comprising:

[0008] receiving LTM configuration information sent by one or more second network devices; wherein the LTM configuration information comprises at least one of the following: first information related to measurement resource configuration, second information related to early synchronization, reference configuration of LTM, first configuration indication or first configuration indication list, first configuration identifier or first configuration identifier mapping list, and third information related to resource reporting configuration.

[0009] As an improvement of the above-mentioned scheme, the first information comprises synchronization signal block configuration and / or channel state information reference signal configuration of a candidate cell.

[0010] As an improvement of the above-mentioned scheme, the method further comprises:

[0011] The one or more first information is sent directly or integrated to one or more second network devices.

[0012] As an improvement of the above scheme, the method further comprises:

[0013] Before receiving the LTM configuration information, a first configuration request is sent to the second network device; the first configuration request carries a cell identity of a candidate cell and / or an LTM indication, the LTM indication being used to instruct the second network device to generate and send a configuration of the candidate cell.

[0014] As an improvement of the above scheme, the second information comprises one or more of the following: a first identity of the second network device and a second identity of a distributed unit thereunder, a random access code used and a random access configuration; wherein the random access configuration comprises time-frequency resources required by the terminal device to perform random access to the second network device.

[0015] As an improvement of the above scheme, the method further comprises:

[0016] Before receiving the LTM configuration information, a second configuration request is sent to the second network device; the second configuration request is used to instruct to obtain the second information of the second network device.

[0017] As an improvement of the above scheme, the method further comprises:

[0018] Before receiving the LTM configuration information, a third configuration request is sent to one or more of the second network devices, wherein the third configuration request is used to obtain a configuration of a selected candidate cell in the second network device as a reference configuration of LTM.

[0019] As an improvement of the above scheme, the method further comprises:

[0020] Before receiving the LTM configuration information, the reference configuration is sent to one or more of the second network devices, and the second network devices generate LTM configurations of one or more candidate cells according to the reference configuration.

[0021] As an improvement of the above scheme, the first configuration indication comprises an indication of additional configuration or complete configuration; and the first configuration indication list describes a first configuration indication of one or more candidate cells of a corresponding second network device.

[0022] As an improvement of the above scheme, the first configuration identity mapping list comprises a cell identity of a candidate cell in one or more of the second network devices and a first configuration identity.

[0023] As an improvement of the above scheme, the method further comprises:

[0024] directly or integrally sending one or more of the first configuration identifier mapping lists to one or more of the second network devices.

[0025] As an improvement of the above scheme, the directly or integrally sending one or more of the first configuration identifier mapping lists to one or more of the second network devices comprises:

[0026] According to the measurement results of Layer 1 or Layer 3, selecting a plurality of candidate cells from the cells indicated by the first configuration identifier mapping lists of the plurality of second network devices, and forming a final first configuration identifier mapping list according to the cell identifiers of the plurality of candidate cells, the configuration information of the plurality of candidate cells, and the mapping relationship between the cell identifiers of the plurality of candidate cells and the configuration information.

[0027] Or merging the first configuration identifier mapping lists of the plurality of second network devices to form a final first configuration identifier mapping list.

[0028] As an improvement of the above scheme, the third information comprises a time-frequency position of the reporting configuration configured in advance for the terminal device by the candidate cell in the LTM switching.

[0029] In a second aspect, the embodiments of the present disclosure provide an LTM configuration transmission method applied to a second network device, comprising:

[0030] sending LTM configuration information to a first network device; wherein the LTM configuration information comprises at least one of the following: first information related to measurement resource configuration, second information related to advance synchronization, reference configuration of LTM, first configuration indication or first configuration indication list, first configuration identifier or first configuration identifier mapping list, and third information related to resource reporting configuration.

[0031] As an improvement of the above scheme, the method further comprises:

[0032] receiving one or more of the first information sent directly or integrally by the first network device.

[0033] As an improvement of the above scheme, the first information comprises synchronization signal block configuration and / or channel state information reference signal configuration of the candidate cell.

[0034] As an improvement of the above scheme, the method further comprises:

[0035] Before sending the LTM configuration information, receiving a first configuration request sent by the first network device; the first configuration request carries a cell identifier of a candidate cell and / or an LTM indicator, and the LTM indicator is used to indicate that the second network device generates and sends the configuration of the candidate cell.

[0036] As an improvement of the above scheme, the second information comprises one or more of the following: a first identifier of the second network device and a second identifier of a distributed unit thereunder, a random access code used and a random access configuration; wherein the random access configuration comprises time-frequency resources required by the terminal device to perform random access to the second network device.

[0037] As an improvement of the above scheme, the method further comprises:

[0038] Before sending the LTM configuration information, a second configuration request sent by the first network device is received; the second configuration request is used to indicate to obtain the second information of the second network device.

[0039] As an improvement of the above scheme, the method further comprises:

[0040] Before sending the LTM configuration information, a third configuration request sent by the first network device is received, wherein the third configuration request is used to obtain the configuration of a candidate cell in the second network device as a reference configuration of LTM.

[0041] As an improvement of the above scheme, the method further comprises:

[0042] Before sending the LTM configuration information, the reference configuration sent by the first network device is received;

[0043] According to the reference configuration, the LTM configuration of each candidate cell therein is generated.

[0044] As an improvement of the above scheme, the first configuration indication comprises: an indication of additional configuration or complete configuration; and the first configuration indication list describes the first configuration indication of one or more candidate cells of the corresponding second network device.

[0045] As an improvement of the above scheme, the first configuration indication mapping list comprises one or more cell identifiers of candidate cells in the second network device and first configuration identifiers.

[0046] As an improvement of the above scheme, the method further comprises:

[0047] One or more first configuration indication mapping lists sent directly or integrated by the first network device are received.

[0048] As an improvement of the above scheme, the third information comprises a time-frequency position of a report configuration configured in advance for the terminal device in LTM switching by a candidate cell in the second network device.

[0049] In a third aspect, an LTM configuration transmission apparatus is provided, applied to a first network device, comprising:

[0050] The LTM configuration information receiving module is configured to receive LTM configuration information sent by the second network device, wherein the LTM configuration information comprises at least one of the following: first information related to measurement resource configuration, second information related to early synchronization, reference configuration of the LTM, a first configuration indication or a first configuration indication list, a first configuration identifier or a first configuration identifier mapping list, and third information related to resource reporting configuration.

[0051] In a fourth aspect, an LTM configuration transmission apparatus is provided, and applied to a second network device, comprising:

[0052] The LTM configuration information sending module is configured to send LTM configuration information to the first network device, wherein the LTM configuration information comprises at least one of the following: first information related to measurement resource configuration, second information related to early synchronization, reference configuration of the LTM, a first configuration indication or a first configuration indication list, a first configuration identifier or a first configuration identifier mapping list, and third information related to resource reporting configuration.

[0053] In a fifth aspect, an LTM configuration transmission device is provided, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor executes the computer program to implement the LTM configuration transmission method according to any one of the first aspect or the LTM configuration transmission method according to any one of the second aspect.

[0054] In a sixth aspect, a computer readable storage medium is provided, and the computer readable storage medium stores a computer program, wherein the computer program controls a device where the computer readable storage medium is located to execute the LTM configuration transmission method according to any one of the first aspect or the LTM configuration transmission method according to any one of the second aspect when the computer program is running.

[0055] In a seventh aspect, a computer program product is provided, comprising computer programs / instructions, which, when executed by a processor, implement the LTM configuration transmission method according to any one of the first aspect or the LTM configuration transmission method according to any one of the second aspect.

[0056] The LTM configuration transmission method, device, equipment, storage medium and program product provided by the embodiment of the present disclosure can receive LTM configuration information sent by one or more second network devices through a first network device, wherein the LTM configuration information comprises at least one of the following: first information related to measurement resource configuration, second information related to early synchronization, reference configuration of LTM, first configuration indication or first configuration indication list, first configuration identifier or first configuration identifier mapping list, and third information related to resource reporting configuration; then the first network device sends the LTM configuration information to a terminal device, and based on the LTM configuration interaction between the first network device and the second network device, the LTM handover of the UE across base stations can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0057] In order to more clearly illustrate the technical solutions of the present disclosure, the drawings used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor.

[0058] FIG. 1 is a schematic diagram of the LTM handover mechanism of a single base station according to an embodiment of the present disclosure;

[0059] FIG. 2 is a flowchart of an LTM configuration transmission method according to an embodiment of the present disclosure;

[0060] FIG. 3 is a schematic diagram of LTM configuration interaction in LTM handover between base stations according to an embodiment of the present disclosure;

[0061] FIG. 4 is another flowchart of an LTM configuration transmission method according to an embodiment of the present disclosure;

[0062] FIG. 5 is a structural block diagram of an LTM configuration transmission device according to an embodiment of the present disclosure;

[0063] FIG. 6 is another structural block diagram of an LTM configuration transmission device according to an embodiment of the present disclosure;

[0064] FIG. 7 is a structural block diagram of an LTM configuration transmission equipment according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0065] The technical solutions in the embodiments of the present disclosure will be described clearly and completely in combination with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present disclosure, not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present disclosure.

[0066] It should be noted that, in the embodiments of the present disclosure, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or sequence between these entities or operations. The terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. The elements defined by the statement "include" without further limitation do not exclude the presence of additional identical elements in the process, method, article or device that includes the elements. The term "a plurality of or several" refers to two or more, and the term "a plurality of or several" is the same. 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 represent three cases of A alone, A and B together, and B alone. The character " / " generally represents a "or" relationship between the front and rear associated objects.

[0067] Some terms and related technologies related to the embodiments of the present disclosure are explained below.

[0068] The embodiments of the present disclosure are applicable to wireless communication systems of various wireless access technologies, such as fourth generation (4th Generation, 4G) communication systems, fifth generation (5th Generation, 5G) communication systems, transition systems between LTE communication systems and 5G communication systems (also known as 4.5G communication systems), or future sixth generation (6th Generation, 6G) communication systems, etc. In the embodiments of the present disclosure, no specific limitation is made. The wireless communication system includes terminal devices and network devices.

[0069] The terminal device is a movable or fixed position device with wireless transceiver function. For example, the terminal device can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device or a computing device with wireless communication function, a mobile phone, a tablet computer, a computer with wireless transceiver function, a drone, a virtual reality (VR) terminal, an augmented reality (AR) terminal, and other wearable devices, a wireless terminal in industrial control, a wireless terminal deployed on a ship, an airplane, and a satellite, a vehicle-mounted wireless terminal in a car and deployed on a self-driving car. The terminal device can also be a wireless terminal in remote medical treatment, smart power grid, transportation safety, smart city, and / or smart home, and a terminal in a future 5th generation (5G) network or a terminal in a future evolved public land mobile network (PLMN), etc., which are not specifically limited in the embodiments of the present disclosure. The terminal device can also be referred to as user equipment (UE) sometimes.

[0070] The network device is a node or device for accessing the terminal device to the wireless network, which can also be referred to as a base station or a RAN device. For example, the network device can be a base station, a generation node B (gNB, a base station for 5G) in 5G, an evolved node B (eNB), a radio network controller (RNC), a node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (for example, a home evolved node B, or a home node B, HNB), a base band unit (BBU), a transmitting and receiving point (TRP), a transmitting point (TP), a mobile switching center, and / or the like, which are not specifically limited in the embodiments of the present disclosure.

[0071] The network device can include a centralized unit (CU) and a distributed unit (DU). The CU implements part of the functions of the network device, and the DU implements part of the functions of the network device. For example, the CU is responsible for processing non-real-time protocols and services, implements the radio resource control (RRC), and implements the functions of the packet data convergence protocol (PDCP) layer. The DU is responsible for processing the physical layer protocol and real-time services, and implements the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer. It can be understood that the network device can be a device including one or more of the CU node and the DU node. In addition, the CU can be divided into a network device in the radio access network (RAN) or a network device in the core network (CN), which is not specifically limited in the embodiments of the present disclosure.

[0072] Taking a gNB base station as an example, the principle of the LTM switching mechanism of a single base station is that the gNB-CU obtains the cell configuration of the candidate cells in the gNB-DU in advance through an interface management process or a UE context management process. After the CU receives the cell configuration messages of all candidate cells, the CU includes the cell configurations of multiple candidate cells in an RRC message and configures the UE. Based on the received RRC message, the UE performs layer 1 measurement and reports the measurement result to the DU. After the DU receives the measurement result, the DU selects a suitable target cell for the UE based on the measurement result, and sends a cell switching command to the UE. When the UE receives the switching command, the UE can immediately perform switching. As shown in FIG. 1, the main process of LTM switching includes:

[0073] LTM preparation phase: when the UE is in an RRC connected state, the UE reports a measurement report to the gNB, and the gNB performs LTM candidate preparation after receiving the measurement report. The gNB sends an RRC reconfiguration message carrying LTM candidate configuration to the UE; after receiving the reconfiguration message, the UE stores the LTM candidate configuration, and then sends a reconfiguration complete message to the gNB, to complete the LTM preparation.

[0074] Early synchronization phase: including LTM candidate cell downlink synchronization and LTM candidate cell uplink synchronization.

[0075] Performing LTM cell switching phase: UE reports L1 measurement report, gNB makes LTM decision based on L1 measurement report, selects target cell from LTM candidate cells previously configured to UE, and indicates target cell to UE through cell switch command; once UE receives cell switch command issued by gNB, UE detaches from source cell, applies target configurations, and completes LTM cell switching through RACH procedure.

[0076] It should be understood that a cell refers to a wireless area controlled by a base station. Among them, the cell corresponding to the base station establishing an RRC connection with the terminal device can be referred to as a source cell; the cell available for terminal device switching can be referred to as a candidate cell; the cell selected by the base station for terminal device switching can be referred to as a target cell. One base station can include one or more cells, which are not specifically limited in the embodiments of the present disclosure. For example, the base station includes cell 1 (i.e., cell 1 belongs to the base station), or the base station includes cell 1 and cell 2 (i.e., cell 1 and cell 2 belong to the base station).

[0077] The embodiments of the present disclosure take the gNB base station as an example of the network device, describe the LTM configuration interaction process between base stations, support the cross-base station LTM switching scenario, and solve the problem of performing necessary reference configuration interaction between base stations. In the embodiments of the present disclosure, the first network device is the network device currently serving the terminal device, which can also be described as the first base station, the original base station, etc., and the second network device is the candidate network device for LTM switching, which can also be described as the second base station, the candidate base station, etc., which are not specifically limited in the embodiments of the present disclosure.

[0078] It should be understood that there can be multiple second network devices, and each network device can be the next serving network device (i.e., the target network device or the target base station). All cells in the second network device can be the next serving cell of the terminal device (i.e., the target cell), and all cells in the second network device can be regarded as candidate cells,

[0079] Referring to FIG. 2, the LTM configuration transmission method provided by the embodiments of the present disclosure, applied to a first network device, comprises:

[0080] S11: receiving LTM configuration information sent by one or more second network devices; wherein the LTM configuration information comprises at least one of the following: first information related to measurement resource configuration, second information related to early synchronization, reference configuration of LTM, first configuration indication or first configuration indication list, first configuration identifier or first configuration identifier mapping list, third information related to resource reporting configuration.

[0081] The first network device then sends the LTM configuration information to the terminal device. For example, the first network device directly or integrally sends one or more of the first information to one or more second network devices.

[0082] It should be understood that the LTM configuration information comprises at least one of the following six types of information:

[0083] (1) the first information related to measurement resource configuration;

[0084] (2) the second information related to early synchronization;

[0085] (3) the reference configuration of LTM;

[0086] (4) the first configuration indication or the first configuration indication list; whether the first configuration indication or the first configuration indication list is sent by the second network device is determined based on the configuration granularity of the second network device, for example, when the granularity is a cell, the second network device sends the first configuration indication list, and when the granularity is a network device, the second network device sends the first configuration indication;

[0087] (5) the first configuration identifier or the first configuration identifier mapping list; whether the first configuration indication or the first configuration indication list is sent by the second network device is determined based on the candidate cell in the second network device, for example, when there is only one candidate cell, the second network device sends the first configuration identifier of the candidate cell, and when there are at least two candidate cells, the second network device sends the first configuration identifier mapping list;

[0088] (6) the third information related to resource reporting configuration.

[0089] Specifically, the first information comprises synchronization signal block configuration and / or channel state information reference signal configuration of the candidate cell.

[0090] Further, the method further comprises:

[0091] sending a first configuration request to the second network device; the first configuration request carries the cell identifier of the candidate cell and / or LTM indication, and the LTM indication is used to instruct the second network device to generate and send the configuration of the candidate cell.

[0092] In an embodiment, the LTM indication can be LTM information request or LTM switching information request.

[0093] For example, the first network device sends the cell identities of the candidate cells to the second network device, and based on the received cell identities of the candidate cells, the second network device can know which configurations of the candidate cells in the second network device are requested by the first network device. The first network device also sends the LTM indication to the second network device, and based on the received cell identities of the candidate cells and / or the LTM indication, the second network device can know that the configurations about LTM switching are requested by the first network device. The cell identities of the candidate cells and / or the LTM indication can be sent to the second network device by the first configuration request.

[0094] The first network device sends the first configuration request before receiving the LTM configuration information sent by one or more second network devices, i.e., the first network device sends the first configuration request before receiving the LTM configuration information sent by one or more second network devices.

[0095] After determining that the configurations about LTM switching are requested by the first network device, the second network device sends the Synchronization Signal / PBCH Block (SSB) configuration and / or Channel State Information-Reference Signal (CSI-RS) configuration of the candidate cells to the first network device; wherein the SSB configuration and / or CSI-RS configuration are used as the reference SSB configuration and / or CSI-RS configuration for the terminal device UE to perform subsequent measurement reporting.

[0096] It should be noted that since all the cells in the second network device can become the next serving cell (i.e., candidate cell), the cell identities of the candidate cells sent by the first network device include the cell identities of all the cells in the second network device.

[0097] Specifically, the second information includes one or more of the following: the first identifier of the second network device and the second identifier of the distributed unit thereunder, the random access code used and the random access configuration; wherein the random access configuration includes the time-frequency resources required by the terminal device to perform random access to the second network device.

[0098] Further, the method further includes:

[0099] sending a second configuration request to the second network device; the second configuration request is used to indicate to obtain the second information of the second network device.

[0100] Exemplarily, in order to shorten the time after the terminal device UE accesses the target cell, the first network device can pre-configure the timing advance (TA) of the target cell for the terminal device UE. Based on this, the first network device sends a second configuration request to the second network device, to indicate to obtain the timing advance (TA) value; after receiving the second configuration request, the second network device sends the configuration of random access of itself to the first network device, wherein the configuration of random access includes at least one of the following: the time-frequency resource required by the terminal device UE to perform random access, the first identifier of the second network device, the second identifier of the distributed unit under the second network device, and the used random access preamble. It should be understood that the first identifier refers to the identifier of the second network device, and the second identifier refers to the identifier of the distributed unit under the second network device; taking the second network device as a base station gNB for example, the first identifier represents the gNB ID, and the second identifier represents the gNB-DU ID.

[0101] The timing at which the first network device sends the second configuration request is before receiving the LTM configuration information sent by one or more second network devices, that is, the first network device sends the second configuration request before receiving the LTM configuration information sent by one or more second network devices.

[0102] The terminal device UE can obtain the TA value in advance based on the above-mentioned time-frequency resource, and directly sends uplink data to the network device after switching; the terminal device UE can use the random access preamble to access the distributed unit under the corresponding second network device when performing random access.

[0103] The first configuration indication (which can also be described as an LTM configuration indication) includes an indication of an additional (delta) configuration or a complete configuration.

[0104] The additional configuration is a unique configuration generated by the second network device for each cell based on the reference configuration.

[0105] The first configuration indication list (which can also be described as an LTM configuration indication list) describes the first configuration indication of one or more candidate cells of the corresponding second network device, and includes the first configuration indication of one or more candidate cells in the second network device.

[0106] After receiving the first configuration indication sent by the candidate second network device, the first network device can know whether the LTM configuration generated by the candidate second network device is an additional configuration based on the reference configuration or a complete configuration.

[0107] Further, the method further includes:

[0108] sending a third configuration request to one or more of the second network devices, wherein the third configuration request is used to obtain a configuration of a candidate cell in the second network device as a reference configuration of the LTM.

[0109] The timing of sending the third configuration request by the first network device to one or more of the second network devices is before receiving the LTM configuration information sent by the one or more second network devices, i.e. the sending of the third configuration request by the first network device is prior to the receiving of the LTM configuration information sent by the one or more second network devices.

[0110] Further, the method further comprises:

[0111] sending the reference configuration to all of the second network devices, and the second network devices generate LTM configurations of respective candidate cells in the second network devices according to the reference configuration.

[0112] The LTM configuration comprises an additional configuration or a complete configuration.

[0113] The timing of sending the reference configuration by the first network device to all of the second network devices is after receiving the LTM configuration information sent by the one or more second network devices, i.e. the sending of the reference configuration by the first network device is later than the receiving of the LTM configuration information sent by the one or more second network devices.

[0114] Exemplarily, when the granularity is a cell, the second network device sends a first configuration indication list, wherein the first configuration indication list describes first configuration indications of respective candidate cells in the second network device.

[0115] When the granularity is a network device, the second network device sends a first configuration indication, wherein the first configuration indication describes cell configurations of all candidate cells in the second network device, and the cell configurations of all candidate cells are the same.

[0116] Further, the first configuration indication is carried in the LTM configuration information in the form of a preset field.

[0117] Exemplarily, the first network device sends a third configuration request to the second network device, for requesting a cell configuration of a candidate cell in the second network device as a reference configuration, and the second network device sends the cell configuration and a cell identifier of the corresponding cell to the first network device;

[0118] Or the first network device takes a cell configuration of a cell in itself as a reference configuration, and does not need to send the third configuration request.

[0119] When the first network device obtains the reference configuration of the LTM from a certain second network device or a certain cell covered by itself, the first network device sends the reference configuration to all second network devices, and at this time, the candidate cells of the second network devices receiving the reference configuration can generate the additional configuration or the complete configuration according to the reference configuration.

[0120] The first configuration indication is used to indicate whether the LTM configuration of a certain candidate cell is a complete configuration or an additional configuration, and the indication level can be in the granularity of a cell or in the granularity of a network device. When the granularity is a cell, a first configuration indication list is transmitted on the Xn interface, which describes whether the LTM configuration of each candidate cell in the second network device is a complete configuration or an additional configuration, and the LTM configuration of each candidate cell can be the same or different. When the granularity is a network device, the LTM configuration of all candidate cells in each second network device is either a complete configuration or an additional configuration.

[0121] In the embodiments of the present disclosure, the first configuration indication can be set as an LTM complete configuration indication or an LTM delta configuration indication. For example, when the LTM complete configuration indication appears in the Xn interface transmission and the content is set as complete, it means that the transmitted candidate cell / second network device is a complete configuration; otherwise, it is considered as a delta configuration. Alternatively, the first configuration indication can indicate a complete configuration or a delta configuration by introducing a preset field such as a "complete" field or a "delta" field, and distinguish whether the candidate cell / second network device is a complete configuration or a delta configuration according to the content carried by the preset field.

[0122] Specifically, the first configuration identification mapping list includes one or more cell identifications of the candidate cells in the second network device and the first configuration identifications.

[0123] In the embodiments of the present disclosure, each second network device has a first configuration identification mapping list, which is the cell identification of all candidate cells in the corresponding second network device and the first configuration identification indicating the mapping relationship between the cell configuration and the cell identification. The first configuration identification mapping list is used to carry in the cell handover command sent to the terminal device UE when the first network device performs cell handover in the future, and indicates the cell identification used by the terminal device UE after accessing the target cell. Since the LTM configuration of all candidate cells has been carried in the first configuration indication or the first configuration indication list before the cell handover command, the terminal device UE can know which set of LTM configuration to use based on the cell identification of the target cell when performing handover.

[0124] Further, the method further comprises:

[0125] directly or integrally sending one or more of the first configuration identity mapping lists to one or more of the second network devices.

[0126] Further, the directly or integrally sending one or more of the first configuration identity mapping lists to one or more of the second network devices comprises:

[0127] selecting a plurality of candidate cells from cells indicated by the first configuration identity mapping lists of the plurality of second network devices according to measurement results of layer 1 or layer 3, and forming a final first configuration identity mapping list according to cell identities of the plurality of candidate cells, configuration information, and a mapping relationship between the cell identities and the configuration information.

[0128] or merging the first configuration identity mapping lists of the plurality of second network devices to form the final first configuration identity mapping list.

[0129] In the embodiments of the present disclosure, after the first network device receives the first configuration identity mapping lists of the one or more second network devices, the first network device can integrate the received first configuration identity mapping lists to form a new first configuration identity mapping list. Since the continuous LTM switching scenario needs to be supported, i.e., each second network device can be the next serving network device, the integrated first configuration identity mapping list needs to be sent to all second network devices.

[0130] For example, after the first network device receives the first configuration identity mapping lists sent by the plurality of second network devices, since the first network device currently contains at most 8 cells, the first network device integrates all the first configuration identity mapping lists, selects the most suitable 8 candidate cells from all the received first configuration identity mapping lists according to measurement results of layer 1 or layer 3, forms a new first configuration identity mapping list, and sends the new first configuration identity mapping list to the second network devices.

[0131] Alternatively, the maximum number of cells that can be configured in the first configuration identity mapping list is expanded, for example, from 8 cells to 64 or 128 cells. After the first network device receives the first configuration identity mapping lists sent by the plurality of second network devices, the first network device integrates all the first configuration identity mapping lists, forms a new first configuration identity mapping list, and sends the new first configuration identity mapping list to the second network devices.

[0132] The timing of the directly or integrally sending one or more of the first configuration identity mapping lists to one or more of the second network devices by the first network device is after receiving the LTM configuration information sent by the one or more second network devices.

[0133] Specifically, the method further comprises:

[0134] receiving the LTM configuration of the candidate cells sent by the one or more second network devices;

[0135] integrating the LTM configuration table of the candidate cells in the one or more second network devices;

[0136] sending the integrated LTM configuration of all the candidate cells to the one or more second network devices.

[0137] In the embodiments of the present disclosure, in order to support continuous LTM switching, after the first network device collects the LTM configurations of the candidate cells from the multiple second network devices, since all the cells in the second network devices can become the next serving cell, the first network device integrates the LTM configurations of all the candidate cells (including the LTM configuration of the current serving cell under the first network device) and sends them to each second network device, so that the candidate cell does not need to obtain the configuration of other candidate cells after becoming the serving cell.

[0138] Specifically, the third information comprises the time-frequency position of the reporting configuration of the candidate cell in the second network device, which is configured in advance for the terminal device in the LTM switching.

[0139] In the embodiments of the present disclosure, in order to support continuous LTM switching, the second network device sends the time-frequency position of the reporting configuration of the candidate cell, which is configured in advance for the terminal device UE in the continuous LTM switching, to the first network device.

[0140] Specifically, the LTM configuration information is configured to the terminal device through an RRC message.

[0141] In the embodiments of the present disclosure, the LTM configuration information can be carried in a handover request reply message or an LTM configuration update reply message. The first configuration request, the second configuration request, the third configuration request and / or the reference configuration can be carried in a handover request message or an LTM configuration update message.

[0142] In the embodiments of the present disclosure, after the first network device obtains the first information, the second information, the first configuration indication or the first configuration indication list, the first configuration identifier or the first configuration identifier mapping list, the third information related to the resource reporting configuration, and the time-frequency position of the reporting configuration of the candidate cell in the second network device, which is configured in advance for the terminal device in the LTM switching, the LTM configuration information can be configured to the terminal device UE through an RRC message for candidate cell switching.

[0143] Compared with the prior art which only supports single base station LTM switching, the embodiments of the present disclosure can guarantee UE cross-base station LTM switching by interacting with the related LTM configuration information between the first network device (i.e., the original base station) and the second network device (i.e., the candidate base station). Meanwhile, the original base station can send a reference configuration to the target base station, and the candidate cell can form its own unique LTM configuration according to the reference configuration and only transmit the unique LTM configuration to the original base station through the interface, thereby avoiding the original base station side decoding a large number of candidate LTM configurations and sending all configurations to the terminal device UE through the RRC message, and saving the air interface overhead of the base station side.

[0144] Referring to FIG. 4, the embodiments of the present disclosure also provide an LTM configuration transmission method, which is applied to a second network device and includes the following steps.

[0145] S21: sending LTM configuration information to a first network device; wherein the LTM configuration information includes at least one of the following: first information related to measurement resource configuration, second information related to early synchronization, a first configuration indication or a first configuration indication list, a first configuration identifier or a first configuration identifier mapping list, and third information related to resource reporting configuration.

[0146] In an optional embodiment, the first information includes synchronization signal block configuration and / or channel state information reference signal configuration of the candidate cell.

[0147] In an optional embodiment, the method further includes the following steps.

[0148] receiving one or more first information sent directly or integrated by the first network device.

[0149] In an optional embodiment, the method further includes the following steps.

[0150] Before sending the LTM configuration information, receiving a first configuration request sent by the first network device; the first configuration request carries a cell identifier of the candidate cell and / or an LTM indication, and the LTM indication is used to indicate that the second network device generates and sends the configuration of the candidate cell.

[0151] In an optional embodiment, the second information includes one or more of the following: a first identifier of the second network device and a second identifier of a distributed unit thereunder, a random access code used and a random access configuration; wherein the random access configuration includes time-frequency resources required by the terminal device to perform random access to the second network device.

[0152] In an optional embodiment, the method further includes the following steps.

[0153] Before sending the LTM configuration information, a second configuration request sent by the first network device is received; the second configuration request is used to indicate to obtain the second information of the second network device.

[0154] In an optional embodiment, the method further comprises:

[0155] Before sending the LTM configuration information, a third configuration request sent by the first network device is received, wherein the third configuration request is used to obtain the configuration of a candidate cell in the second network device as a reference configuration of LTM.

[0156] In an optional embodiment, the method further comprises:

[0157] Before sending the LTM configuration information, the reference configuration sent by the first network device is received;

[0158] The LTM configuration of each candidate cell in the second network device is generated according to the reference configuration.

[0159] In an optional embodiment, the first configuration indication comprises: an indication of additional configuration or complete configuration; and the first configuration indication list describes the first configuration indication of one or more candidate cells of the corresponding second network device.

[0160] In an optional embodiment, the first configuration identification mapping list comprises the cell identification and the first configuration identification of one or more candidate cells in the second network device.

[0161] In an optional embodiment, the method further comprises:

[0162] One or more first configuration identification mapping lists sent by the first network device directly or integrated are received.

[0163] In an optional embodiment, the third information comprises the time-frequency position of the reporting configuration pre-configured for the terminal device in the LTM switching of the candidate cell in the second network device.

[0164] It should be noted that the working process of the LTM configuration transmission method described in the embodiments of the present disclosure can refer to the working process of the LTM configuration transmission method applied to the first network device described in the above embodiments, and the technical effects achieved are the same as those of the LTM configuration transmission method described in the above embodiments, which will not be repeated here.

[0165] Referring to FIG. 5, the embodiments of the present disclosure further provide an LTM configuration transmission device, which is applied to a first network device and comprises:

[0166] The LTM configuration information receiving module 11 is configured to receive LTM configuration information sent by one or more second network devices, wherein the LTM configuration information comprises at least one of the following: first information related to measurement resource configuration, second information related to early synchronization, a first configuration indication or a first configuration indication list, a first configuration identifier or a first configuration identifier mapping list, and third information related to resource reporting configuration.

[0167] In an optional embodiment, the first information comprises synchronization signal block configuration and / or channel state information reference signal configuration of the candidate cell.

[0168] In an optional embodiment, the apparatus further comprises:

[0169] The first information sending module is configured to directly or integrally send one or more of the first information to one or more second network devices.

[0170] In an optional embodiment, the apparatus further comprises:

[0171] The first request sending module is configured to send a first configuration request to the second network device, wherein the first configuration request carries a cell identifier of the candidate cell and / or an LTM indication, and the LTM indication is used to instruct the second network device to generate and send configuration of the candidate cell.

[0172] In an optional embodiment, the second information comprises one or more of the following: a first identifier of the second network device and a second identifier of a distributed unit thereunder, a random access code used and random access configuration; wherein the random access configuration comprises time-frequency resources required by the terminal device to perform random access to the second network device.

[0173] In an optional embodiment, the apparatus further comprises:

[0174] The second request sending module is configured to send a second configuration request to the second network device, wherein the second configuration request is used to instruct to obtain the second information of the second network device.

[0175] In an optional embodiment, the apparatus further comprises:

[0176] The third request sending module is configured to send a third configuration request to one or more of the second network devices, wherein the third configuration request is used to obtain configuration of a candidate cell in the second network device as reference configuration of the LTM.

[0177] In an optional embodiment, the apparatus further comprises:

[0178] The reference configuration sending module is configured to send the reference configuration to all the second network devices, so that the second network devices generate the LTM configuration of each candidate cell in the second network devices according to the reference configuration.

[0179] In an optional embodiment, the first configuration indication comprises an indication of an additional configuration or a complete configuration; and the first configuration indication list describes the first configuration indication of each candidate cell in the corresponding second network device.

[0180] In an optional embodiment, the first configuration identification mapping list comprises one or more cell identifications and first configuration identifications of candidate cells in the one or more second network devices.

[0181] In an optional embodiment, the apparatus further comprises:

[0182] The identification list sending module is configured to send one or more first configuration identification mapping lists to one or more second network devices directly or integrally.

[0183] In an optional embodiment, the identification list sending module comprises:

[0184] The list screening unit is configured to select a plurality of candidate cells from the cells indicated by the first configuration identification mapping lists of the plurality of second network devices according to the measurement results of Layer 1 or Layer 3, and form a final first configuration identification mapping list according to the cell identifications of the plurality of candidate cells, the configuration information of the plurality of candidate cells, and the mapping relationship between the cell identification configuration information of the plurality of candidate cells.

[0185] Or the list merging unit is configured to merge the first configuration identification mapping lists of the plurality of second network devices to form a final first configuration identification mapping list.

[0186] In an optional embodiment, the third information comprises a time-frequency position of a reporting configuration of a candidate cell in the second network device, which is configured in advance for the terminal device in LTM switching.

[0187] It should be noted that the working processes of the various modules in the LTM configuration transmission apparatus described in the embodiments of the present disclosure can refer to the working processes of the LTM configuration transmission method applied to the first network device described in the above embodiments, and the technical effects achieved are the same as those of the LTM configuration transmission method described in the above embodiments, which will not be described here again.

[0188] Referring to FIG. 6, the embodiments of the present disclosure further provide an LTM configuration transmission apparatus, which is applied to a second network device and comprises:

[0189] The LTM configuration information sending module 21 is configured to send LTM configuration information to the first network device, wherein the LTM configuration information comprises at least one of the following: first information related to measurement resource configuration, second information related to early synchronization, a first configuration indication or a first configuration indication list, a first configuration identifier or a first configuration identifier mapping list, and third information related to resource reporting configuration.

[0190] In an optional embodiment, the first information comprises synchronization signal block configuration and / or channel state information reference signal configuration of the candidate cell.

[0191] In an optional embodiment, the apparatus further comprises:

[0192] The first information receiving module is configured to receive one or more pieces of the first information sent directly or integrated by the first network device.

[0193] In an optional embodiment, the apparatus further comprises:

[0194] The first request receiving module is configured to receive a first configuration request sent by the first network device, wherein the first configuration request carries a cell identifier of the candidate cell and / or an LTM indication, and the LTM indication is used to indicate that the second network device generates and sends the configuration of the candidate cell.

[0195] In an optional embodiment, the second information comprises one or more of the following: a first identifier of the second network device and a second identifier of a distributed unit thereunder, a random access code used and a random access configuration; wherein the random access configuration comprises time-frequency resources required by the terminal device to perform random access to the second network device.

[0196] In an optional embodiment, the apparatus further comprises:

[0197] The second information receiving module is configured to receive a second configuration request sent by the first network device, wherein the second configuration request is used to obtain the second information of the second network device.

[0198] In an optional embodiment, the apparatus further comprises:

[0199] The second request receiving module is configured to receive a third configuration request sent by the first network device, wherein the third configuration request is used to obtain the configuration of a candidate cell in the second network device as a reference configuration of the LTM.

[0200] In an optional embodiment, the apparatus further comprises:

[0201] The reference configuration receiving module is configured to receive the reference configuration sent by the first network device.

[0202] an LTM configuration module, configured to generate, according to the reference configuration, an LTM configuration of each candidate cell.

[0203] In an optional embodiment, the first configuration indication comprises an indication of an additional configuration or a complete configuration; and the first configuration indication list describes the first configuration indication of each candidate cell in the corresponding second network device.

[0204] In an optional embodiment, the first configuration identity mapping list comprises one or more cell identities and first configuration identities of candidate cells in the second network device.

[0205] In an optional embodiment, the apparatus further comprises:

[0206] a third information receiving module, configured to receive one or more first configuration identity mapping lists sent by the first network device directly or integrally.

[0207] In an optional embodiment, the third information comprises a time-frequency position of a reporting configuration configured in advance for the terminal device in LTM switching by a candidate cell in the second network device.

[0208] It should be noted that the working processes of the various modules in the LTM configuration transmission apparatus described in the embodiments of the present disclosure can refer to the working processes of the LTM configuration transmission method applied to the second network device described in the above embodiments, and the technical effects achieved are the same as those of the LTM configuration transmission method described in the above embodiments, which will not be described here again.

[0209] Referring to FIG. 7, the LTM configuration transmission device according to the embodiments of the present disclosure is provided. The LTM configuration transmission device comprises a processor 31, a memory 32, and a computer program stored in the memory 32 and executable on the processor 31. The processor 31 implements the steps in the above various LTM configuration transmission method embodiments when executing the computer program, such as steps S11-S12 or steps S21.

[0210] For example, the computer program can be divided into one or more modules / units, which are stored in the memory 32 and executed by the processor 31 to complete the present disclosure. The one or more modules / units can be a series of computer program instruction segments capable of completing a specific function, which are used to describe the execution process of the computer program in the LTM configuration transmission device.

[0211] The LTM configuration transmission device can include, but is not limited to, a processor 31 and a memory 32. Those skilled in the art can understand that the schematic diagram is only an example of the LTM configuration transmission device, and does not constitute a limitation on the LTM configuration transmission device, and can include more or fewer components than the schematic diagram, or combine certain components, or different components, for example, the LTM configuration transmission device can also include an input / output device, a network access device, a bus, etc.

[0212] The processor 31 can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gates or transistor logic components, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The processor 31 is the control center of the LTM configuration transmission device, and connects various parts of the LTM configuration transmission device through various interfaces and lines.

[0213] The memory 32 can be used to store computer programs and / or modules, and the processor 31 realizes various functions of the LTM configuration transmission device by running or executing computer programs and / or modules stored in the memory 32, and calling data stored in the memory 32. The memory 32 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application program required for a function (such as a sound playing function, an image playing function, etc.), etc.; and the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory 32 can include a high-speed random access memory, and can also include a non-volatile memory, for example, a hard disk, a memory, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, at least one disk storage device, a flash memory device, or other volatile solid-state memory devices.

[0214] Wherein, if the modules / units integrated in the LTM configuration transmission device are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by the processor 31, it can implement the steps of the various method embodiments described above. Wherein, the computer program includes computer program code, which can be in the form of source code, object code, executable file, or some intermediate form, etc. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording media, USB flash drive, portable hard drive, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc.

[0215] It should be noted that the device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Furthermore, in the accompanying drawings of the device embodiments provided in this disclosure, the connection relationships between modules indicate that they have communication connections, which can be specifically implemented as one or more communication buses or signal lines. Those skilled in the art can understand and implement this without any creative effort.

[0216] The above description is a preferred embodiment of this disclosure. It should be noted that, for those skilled in the art, many improvements and modifications can be made without departing from the principles of this disclosure, and these improvements and modifications are also considered to be within the scope of protection of this disclosure.

Claims

1. A method for transmitting LTM configuration information, applied to a first network device, comprising: receiving LTM configuration information transmitted by one or more second network devices, wherein the LTM configuration information comprises at least one of the following: first information related to measurement resource configuration, second information related to early synchronization, reference configuration of LTM, first configuration indication or a list of first configuration indications, first configuration identifier or a list of first configuration identifier mappings, and third information related to resource reporting configuration. The first information comprises synchronization signal block configuration and / or channel state information reference signal configuration of a candidate cell.

2. The LTM configuration transmission method of claim 1, wherein, 3.The method of claim 1, further comprising: directly or integrally transmitting one or more of the first information to one or more second network devices. 4.The method of claim 2, further comprising: before receiving the LTM configuration information, transmitting a first configuration request to the second network device, wherein the first configuration request carries a cell identifier of a candidate cell and / or an LTM indication, and the LTM indication is used to instruct the second network device to generate and transmit configuration of the candidate cell. The second information comprises one or more of the following: a first identifier of the second network device and a second identifier of a distributed unit thereunder, a random access code used and a random access configuration, wherein the random access configuration comprises time-frequency resources required for a terminal device to perform random access to the second network device. 6.The method of claim 5, further comprising: before receiving the LTM configuration information, transmitting a second configuration request to the second network device, wherein the second configuration request is used to instruct to obtain the second information of the second network device. 7.The method of claim 1, further comprising: before receiving the LTM configuration information, transmitting a third configuration request to one or more of the second network devices, wherein the third configuration request is used to obtain configuration of a candidate cell in the second network device as the reference configuration of LTM. 8.The method of claim 1, further comprising: before receiving the LTM configuration information, transmitting the reference configuration to one or more of the second network devices, and the second network device generates LTM configuration of one or more candidate cells according to the reference configuration.

5. The LTM configuration transmission method of claim 1, wherein, The first configuration indication comprises an indication of additional configuration or complete configuration, and the list of first configuration indications describes first configuration indications of one or more candidate cells of a corresponding second network device. The list of first configuration identifier mappings comprises cell identifiers and first configuration identifiers of candidate cells in one or more of the second network devices. 11.The method of claim 10, further comprising: directly or integrally transmitting one or more of the list of first configuration identifier mappings to one or more of the second network devices. The directly or integrally transmitting one or more of the list of first configuration identifier mappings to one or more of the second network devices comprises: ​ ​ ​ ​ 9. The LTM configuration transmission method of claim 1, wherein, ​ 10. The LTM configuration transmission method of claim 1, wherein, ​ ​ ​ 12. The LTM configuration transmission method of claim 11, wherein, ​ According to measurement results of Layer 1 or Layer 3, a plurality of candidate cells are selected from cells indicated by the first configuration-identity mapping list of the plurality of second network devices, and a final first configuration-identity mapping list is formed according to cell identities of the plurality of candidate cells, configuration information of the plurality of candidate cells, and a mapping relationship between the cell identities and the configuration information. Or the first configuration-identity mapping lists of the plurality of second network devices are combined to form the final first configuration-identity mapping list.

13. The LTM configuration transmission method of claim 1, wherein, The third information includes a time-frequency position of a report configuration of a candidate cell in the second network device configured in advance for a terminal device in LTM switching.

14. An LTM configuration transmission method applied to a second network device, the method comprising: sending LTM configuration information to a first network device; wherein the LTM configuration information includes at least one of the following: first information related to measurement resource configuration, second information related to advance synchronization, reference configuration of LTM, first configuration indication or first configuration indication list, first configuration identity or first configuration identity mapping list, and third information related to resource report configuration.

15. The LTM configuration transmission method of claim 14, wherein, The first information includes synchronization signal block configuration and / or channel state information reference signal configuration of a candidate cell.

16. The LTM configuration transmission method of claim 14, further comprising: receiving one or more of the first information sent directly or integrated by the first network device.

17. The LTM configuration transmission method of claim 15, further comprising: receiving a first configuration request sent by the first network device before sending the LTM configuration information; The first configuration request carries cell identity of a candidate cell and / or LTM indication, and the LTM indication is used to indicate that the second network device generates and sends configuration of the candidate cell.

18. The LTM configuration transmission method of claim 14, wherein, The second information includes one or more of the following: first identity of the second network device and second identity of a distributed unit thereunder, used random access code and random access configuration; wherein the random access configuration includes time-frequency resource required by a terminal device to perform random access to the second network device.

19. The LTM configuration transmission method of claim 18, further comprising: receiving a second configuration request sent by the first network device before sending the LTM configuration information; The second configuration request is used to indicate to obtain the second information of the second network device.

20. The LTM configuration transmission method of claim 14, further comprising: receiving a third configuration request sent by the first network device before sending the LTM configuration information, wherein the third configuration request is used to obtain configuration of a candidate cell in the second network device as reference configuration of LTM.

21. The LTM configuration transmission method of claim 20, further comprising: receiving the reference configuration sent by the first network device before sending the LTM configuration information; generating LTM configuration of each candidate cell in the reference configuration according to the reference configuration.

22. The LTM configuration transmission method of claim 14, wherein, The first configuration indication includes an indication of an additional configuration or a complete configuration; and the first configuration indication list describes first configuration indications of one or more candidate cells of the corresponding second network device.

23. The LTM configuration transmission method of claim 14, wherein, The first configuration identification mapping list includes one or more cell identifications and first configuration identifications of candidate cells in the second network device.

24. The LTM configuration transmission method of claim 23, further comprising: receiving one or more first configuration identification mapping lists sent by the first network device directly or integrally.

25. The LTM configuration transmission method of claim 14, wherein, The third information includes a time-frequency position of a reporting configuration configured in advance for a terminal device in LTM switching of a candidate cell in the second network device.

26. An LTM configuration transmission apparatus applied to a first network device, the apparatus comprising: an LTM configuration information receiving module, configured to receive LTM configuration information sent by a second network device; wherein the LTM configuration information includes at least one of the following: first information related to measurement resource configuration, second information related to advance synchronization, reference configuration of LTM, first configuration indication or first configuration indication list, first configuration identification or first configuration identification mapping list, and third information related to resource reporting configuration.

27. An LTM configuration transmission apparatus applied to a second network device, the apparatus comprising: an LTM configuration information sending module, configured to send LTM configuration information to a first network device; wherein the LTM configuration information includes at least one of the following: first information related to measurement resource configuration, second information related to advance synchronization, reference configuration of LTM, first configuration indication or first configuration indication list, first configuration identification or first configuration identification mapping list, and third information related to resource reporting configuration.

28. An LTM configuration transmission device, comprising: a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor executes the computer program to implement the LTM configuration transmission method of any one of claims 1 to 13 or the LTM configuration transmission method of any one of claims 14 to 25.

29. A computer-readable storage medium storing a computer program, wherein, controlling a device where the computer readable storage medium is located to execute the LTM configuration transmission method of any one of claims 1 to 13 or the LTM configuration transmission method of any one of claims 14 to 25 when the computer program is running.

30. A computer program product, comprising a computer program / instruction, which, when executed by a processor, implements the LTM configuration transmission method of any one of claims 1 to 13 or the LTM configuration transmission method of any one of claims 14 to 25.

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