Communication method and related equipment

Abstract

The embodiment of the invention provides a communication method, and the method comprises the steps: a first main base station transmits first information to each candidate main base station (a second main base station) in a switching preparation stage, and triggers the second main base station to determine a processing operation for the configuration information of an auxiliary base station through the first information. And each second main base station determines a unified processing operation for the configuration information of the auxiliary base station after receiving the first information, and sends second information comprising the configuration information of the auxiliary base station and / or the processing operation for the configuration information to the first main base station. And the first main base station sends third information comprising the second information to the terminal equipment, so that the terminal equipment executes processing operation aiming at the configuration information of the auxiliary base station according to the third information, and a communication strategy matched with the second main base station can be carried out after the terminal equipment is switched to the second main base station. The understanding consistency of the terminal equipment and the network side for the configuration information of the auxiliary base station is ensured, and the communication between the terminal equipment and the network side is ensured.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a communication method and related equipment. Background Technology

[0002] Dual connectivity (DC) is a unique technology in 5G wireless systems that allows user equipment (UE) to establish connections with two base stations simultaneously. The purpose of dual connectivity is to enhance network performance by combining the resources of different base stations, thereby increasing data rates, reducing latency, and improving overall quality of service. In dual connectivity, the two base stations the UE connects to are a master node (MN) and a secondary node (SN). The master node has a primary cell (Pcell) and several other cells. The UE accesses the Pcell randomly. These cells together form a master cell group (MCG), such as... Figure 1 As shown. Below the secondary base station, there exists a primary cell called the primary secondary cell (PScell) and several other cells. The UE accesses the PScell ​​randomly. These cells together form the secondary cell group (SCG), as shown below. Figure 1 As shown.

[0003] During LTM handover between primary base stations (MNs), one or more candidate MNs pre-configure their own configuration information and send this information to the original MN. The original MN then forwards this configuration information to the UE via a Radio Resource Control (RRC) reconfiguration message. The configuration information may also include processing instructions for the SCG configuration information from each candidate MN, such as releasing the SCG configuration information or maintaining it unchanged. Upon receiving the LTM handover command, the UE will handover to the target MN and, based on the processing instructions for the SCG configuration under the target MN, determine whether to release the SCG configuration information or maintain it. Releasing the SCG configuration information means the UE enters a non-dual-connectivity state; maintaining the SCG configuration information means the UE continues to maintain a dual-connectivity state.

[0004] During consecutive handovers between MNs, for example, when handovering to MN1 for the first time, the SCG configuration information is released under MN1. However, when handovering to MN2 for the second time, the SCG configuration information is maintained under MN2. Because the UE released the SCG configuration information during the first handover (i.e., the UE was in a non-dual-connectivity state), the instruction to maintain the SCG configuration information upon handover to MN2 leads to a misinterpretation between the UE and the network, causing confusion regarding the subsequent actions. Summary of the Invention

[0005] This application provides a communication method and related equipment to enable the UE to respond promptly to the processing operations of the main base station on SCG configuration information after handover, and to ensure normal communication between the UE and the main base station.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] In a first aspect, this application provides a communication method applied to a first primary base station, comprising: sending first information to one or more second primary base stations, the first information being used to trigger the second primary base stations to determine a processing operation for configuration information of a secondary base station, the second primary base station being a candidate primary base station; receiving second information sent by the second primary base stations, the second information including configuration information of the secondary base station corresponding to the second primary base station, and / or a processing operation for the configuration information; and sending third information to a terminal device, the third information including the second information, so that after the terminal device switches from the first primary base station to the second primary base station, it executes a corresponding communication strategy according to the processing operation for the configuration information.

[0008] This scheme involves the original primary base station (the first primary base station) connected to the terminal device sending first information to each candidate primary base station (the second primary base station) during the handover preparation phase. This first information triggers the second primary base stations to determine the processing operation for the configuration information of the secondary base stations. Each second primary base station, upon receiving the first information, determines a unified processing operation for the configuration information of the secondary base station and sends second information, including the configuration information of the secondary base station and / or the processing operation for that configuration information, to the first primary base station. The first primary base station then sends third information, including the second information, to the terminal device. This enables the terminal device to execute the processing operation for the configuration information of the secondary base station based on the third information. This ensures that after handover to the second primary base station, a matching communication strategy can be established with the second primary base station, guaranteeing consistency in the understanding of the configuration information of the secondary base station between the terminal device and the network side, and ensuring communication between the terminal device and the network side.

[0009] In some implementations, the processing operation is determined by the second master base station based on the first indication information carried by the first information, the first indication information indicating the connection status of the terminal device, or the processing operation is determined by multiple second master base stations through negotiation.

[0010] In some implementations, sending the first information to one or more second primary base stations includes: determining the connection status of the terminal device; sending the first information to one or more second primary base stations, the first information including the connection status, and the first information instructing the second primary base stations to determine processing operations for the configuration information based on the connection status.

[0011] In some implementations, the connection state is the current connection state of the terminal device, or the connection state is the connection state determined by the first master base station.

[0012] In some implementations, the processing operations included in the second information match the connection state indicated by the first indication information.

[0013] In some implementations, the connection state is a single connection state or a dual connection state; the single connection state includes one of the following: releasing the configuration information of the secondary base station, not applying the configuration information of the secondary base station, and applying single connection communication; the dual connection state includes one of the following: retaining the configuration information of the secondary base station, applying the configuration information of the secondary base station, reconfiguring the configuration information of the secondary base station, and applying dual connection communication.

[0014] In some implementations, sending the first information to the second primary base station includes: determining candidate second primary base stations; and sending the first information to each candidate second primary base station, wherein the first information includes the identifiers of all candidate second primary base stations.

[0015] In some implementations, the method further includes: determining a second primary base station from candidate second primary base stations to initiate a negotiation process, wherein the first information further includes second indication information, the second indication information being used to indicate the second primary base station to initiate the negotiation process.

[0016] In some embodiments, the method further includes: when the configuration information of the auxiliary base station corresponding to the first primary base station is updated, sending fourth information to one or more second primary base stations, the fourth information including the update result of the configuration information being updated, the fourth information being used to trigger the second primary base station to update the configuration information of the auxiliary base station.

[0017] In some embodiments, the method further includes: if the update occurs before the first primary base station sends a handover instruction to the terminal device, receiving fifth information sent by the second primary base station, the fifth information including configuration information of a secondary base station determined by the second primary base station based on the update result, and / or processing operations for the configuration information, wherein the second primary base station is one or more candidate primary base stations; sending sixth information to the terminal device, the sixth information including the fifth information, so that after the terminal device switches from the first primary base station to the second base station, it executes a corresponding communication strategy according to the processing operations.

[0018] In some implementations, if the update occurs after the first primary base station sends a handover instruction to the terminal device, the second primary base station is the target second primary base station determined by the first primary base station from one or more candidate second primary base stations.

[0019] In a second aspect of this application, a communication method is provided, the method being applied to a first primary base station. The method includes: sending first configuration information to a terminal device, the first configuration information including second configuration information of one or more secondary base stations corresponding to second primary base stations; and sending seventh information to the second primary base station, the seventh information including the connection status of the terminal device, the seventh information being used to notify the second primary base station to determine a processing operation for the configuration information of the secondary base stations. The second configuration information may include configuration information of the secondary base stations and / or processing operations for the configuration information.

[0020] This communication method allows the first primary base station to send the second configuration information of the secondary base station, sent by the candidate second primary base station, to the terminal device during the handover preparation phase. Additionally, the first primary base station can send a seventh message to the second primary base station, which includes the connection status of the terminal device. This seventh message notifies the second primary base station to determine the processing operation for the configuration information of the secondary base station. In this way, the second primary base station can independently determine how to process the configuration information of the secondary base station based on the connection status of the terminal device included in the seventh message, thereby ensuring that the terminal device can communicate normally with the second primary base station after handover.

[0021] In some implementations, sending the seventh information to the second primary base station includes: sending the seventh information to one or more second primary base stations before the first primary base station sends a handover instruction to the terminal device; or, sending the seventh information to a target second primary base station after the first base station sends a handover instruction to the terminal device, wherein the target second primary base station is a second primary base station determined by the first primary base station from one or more candidate second primary base stations.

[0022] In some embodiments, the method further includes: if the terminal device has not disconnected from the first base station, receiving eighth information sent by the second main base station, the eighth information including configuration information of the auxiliary base station reacquired by the second main base station, and / or processing operations for the configuration information;

[0023] A ninth message is sent to the terminal device, the ninth message including the eighth message, so that after the terminal device switches from the first main base station to the second main base station, it executes the corresponding communication strategy according to the processing operation.

[0024] In some implementations, the connection state is a single connection state or a dual connection state; the single connection state includes one of the following: releasing the configuration information of the secondary base station, not applying the configuration information of the secondary base station, and applying single connection communication; the dual connection state includes one of the following: retaining the configuration information of the secondary base station, applying the configuration information of the secondary base station, reconfiguring the configuration information of the secondary base station, and applying dual connection communication.

[0025] In a third aspect of this application, a communication method is provided, the method being applied to a second primary base station, the method comprising: receiving first information sent by a first primary base station, the first information being used to trigger a processing operation by the second primary base station to determine configuration information for a secondary base station, the second primary base station being a candidate primary base station; determining second information based on the first information and the processing operation for the configuration information, the second information including configuration information of the secondary base station corresponding to the second primary base station, and / or the processing operation for the configuration information; sending the second information to the first primary base station, so that the first primary base station sends third information including the second information to a terminal device, so that after the terminal device switches from the first primary base station to the second primary base station, it executes a corresponding communication strategy according to the processing operation.

[0026] In some implementations, determining the processing operation for the configuration information based on the first information and determining the second information includes: if the first information includes the connection status of the terminal device, determining the processing operation for the configuration information based on the connection status and determining the second information, wherein the processing operation matches the connection status.

[0027] In some implementations, the connection state is the current connection state of the terminal device, or the connection state is the connection state determined by the first master base station.

[0028] In some implementations, the connection state is a single connection state or a dual connection state; the single connection state includes one of the following: releasing the configuration information of the secondary base station, not applying the configuration information of the secondary base station, and applying single connection communication; the dual connection state includes one of the following: retaining the configuration information of the secondary base station, applying the configuration information of the secondary base station, reconfiguring the configuration information of the secondary base station, and applying dual connection communication.

[0029] In some implementations, determining the processing operation for the configuration information based on the first information and determining the second information includes: if the first information includes the identifiers of each candidate second primary base station, negotiating the connection status of the terminal device with other candidate second primary base stations; determining the processing operation based on the connection status and determining the second information.

[0030] In some embodiments, the method further includes: receiving fourth information sent by the first primary base station, the fourth information including an update result indicating that the configuration information of the secondary base station corresponding to the first primary base station has been updated; determining the configuration information of the secondary base station based on the fourth information, determining fifth information, the fifth information including the configuration information of the secondary base station corresponding to the second primary base station, and / or processing operations for the configuration information; if the update occurs before the first primary base station sends a handover instruction to the terminal device, sending the fifth information to the first primary base station so that the first primary base station sends sixth information including the fifth information to the terminal device, so that after the terminal device switches from the first primary base station to the second base station, it executes a corresponding communication strategy according to the processing operation; if the update occurs after the first primary base station sends a handover instruction to the terminal device, sending the fifth information to the terminal device so that after the terminal device switches to the second base station, it executes a corresponding communication strategy according to the processing operation.

[0031] In a fourth aspect of this application, a communication method is provided, the method being applied to a second primary base station, the method comprising: sending second configuration information to a first primary base station, the second configuration information including configuration information of a secondary base station corresponding to the second primary base station, and / or processing operations for the configuration information; receiving seventh information sent by the first primary base station, the seventh information including the connection status of a terminal device, the seventh information being used to notify the second primary base station to determine the processing operations for the configuration information.

[0032] In some embodiments, the method further includes: if the connection state of the terminal device matches the processing operation for the configuration information, providing a target service to the terminal device, wherein the target service is consistent with the service indicated by the connection state of the terminal device.

[0033] In some embodiments, the method further includes: if the service indicated by the connection status of the terminal device is a single-connection service and the service indicated by the processing operation for the configuration information is a dual-connection service, providing a single-connection service to the terminal device.

[0034] In some embodiments, the method further includes: when the terminal device is not disconnected from the first primary base station, if the service indicated by the connection status of the terminal device is a single-connection service and the service indicated by the processing operation for the configuration information is a dual-connection service, re-acquiring the configuration information of the secondary base station; sending eighth information to the first primary base station, the eighth information including the configuration information of the secondary base station and / or the processing operation for the configuration information, so that the first primary base station sends ninth information including the eighth information to the terminal device, so that after the terminal device switches from the first primary base station to the second primary base station, it executes the corresponding communication strategy according to the processing operation.

[0035] In some embodiments, the method further includes: when the terminal device disconnects from the first primary base station, if the service indicated by the connection status of the terminal device is a single-connection service and the service indicated by the processing operation for the configuration information is a dual-connection service, re-acquiring the configuration information of the secondary base station; sending eighth information to the terminal device, the eighth information including the configuration information of the secondary base station and / or the processing operation for the configuration information, so that the terminal device executes a corresponding communication strategy according to the processing operation.

[0036] In some implementations, the connection state is a single-connection state or a dual-connection state; the single-connection state includes one of the following: releasing the configuration information of the secondary base station, not applying the configuration information of the secondary base station, and applying single-connection communication; the service indicated by the single-connection state is a single-connection service; the dual-connection state includes one of the following: retaining the configuration information of the secondary base station, applying the configuration information of the secondary base station, reconfiguring the configuration information of the secondary base station, and applying dual-connection communication; the service indicated by the dual-connection state is a dual-connection service.

[0037] Fifthly, this application provides a network element, which includes a transceiver and a processor; wherein the transceiver is configured to perform receiving and transmitting operations in the method described in the first aspect or any embodiment of the first aspect, or to perform receiving and transmitting operations in the method described in the second aspect or any embodiment of the second aspect; the processor is configured to perform other operations in the method described in the first aspect or any embodiment of the first aspect besides the receiving and transmitting operations, or to perform other operations in the method described in the second aspect or any embodiment of the second aspect besides the receiving and transmitting operations.

[0038] In a sixth aspect, this application provides a network element including a transceiver and a processor; wherein the transceiver is configured to perform receiving and transmitting operations in the method described in the third aspect or any embodiment of the third aspect, or to perform receiving and transmitting operations in the method described in the fourth aspect or any embodiment of the fourth aspect; the processor is configured to perform other operations in the method described in the third aspect or any embodiment of the third aspect besides the receiving and transmitting operations, or to perform other operations in the method described in the fourth aspect or any embodiment of the fourth aspect besides the receiving and transmitting operations.

[0039] A seventh aspect provides a communication system, including a terminal device and a network element. The network element is used to execute the method described in the first or second aspect, or the method described in the third or fourth aspect; the terminal device is used to communicate with the network element based on configuration information sent by the network element.

[0040] Eighthly, this application provides a computer storage medium for storing a computer program, which, when executed, implements the communication method provided in any one of the first to fourth aspects of this application.

[0041] Ninthly, this application provides a computer program product containing instructions that, when run on at least one computing device, causes the at least one computing device to implement the communication method provided in any one of the first to fourth aspects of this application. Attached Figure Description

[0042] Figure 1 A schematic diagram of a dual connection provided for an embodiment of this application;

[0043] Figure 2 This application provides an LTM switching flowchart.

[0044] Figure 3 A communication system structure diagram provided in this application embodiment;

[0045] Figure 4 A signaling interaction diagram of a communication method provided in an embodiment of this application;

[0046] Figure 5a A unified connection state signaling interaction diagram provided for embodiments of this application;

[0047] Figure 5b A negotiation connection state signaling interaction diagram provided for an embodiment of this application;

[0048] Figure 6Signaling interaction diagram of another communication method provided in the embodiments of this application;

[0049] Figure 7a This application provides a signaling interaction diagram for connection state processing in an embodiment of the present application.

[0050] Figure 7b This application provides a signaling interaction diagram for connection state processing in an embodiment of the present application.

[0051] Figure 8 A schematic diagram of the structure of a network element provided in this application;

[0052] Figure 9 This is a schematic diagram of the structure of an SDR terminal provided in this application. Detailed Implementation

[0053] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The terminology used in the following embodiments is for the purpose of describing specific embodiments only and is not intended to be a limitation of this application. As used in the specification and appended claims of this application, the singular expressions "a," "an," "the," "the," "the," and "this" are intended to also include expressions such as "one or more," unless the context clearly indicates otherwise. It should also be understood that in the embodiments of this application, "one or more" refers to one, two, or more; "and / or" describes the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0054] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0055] The "multiple" mentioned in the embodiments of this application refers to two or more. It should be noted that in the description of the embodiments of this application, terms such as "first" and "second" are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.

[0056] The process of performing LTM switching, such as Figure 2 As shown, the terminal device reports the measurement results to the original primary base station, which then determines to perform an LTM handover based on the terminal device's LTM support capability. Specifically, the original primary base station sends an LTM handover request to the candidate primary base station, which triggers the addition of a secondary base station (SN), obtains the relevant configuration of the secondary base station group (SCG), and sends the configuration information to the original primary base station. The original primary base station then sends the configuration information of the candidate primary base stations to the terminal device via an RRC reconfiguration message. After receiving the configuration information from each candidate primary base station, the terminal device performs downlink and uplink synchronization for each candidate primary base station.

[0057] The terminal device performs Layer 1 measurements on the original primary base station and candidate primary base stations based on the acquired configuration information and reports the measurement results to the original primary base station. The original primary base station then determines the target primary base station from multiple candidate primary base stations based on the measurement results and issues a handover command to the terminal device. The terminal device can then initiate a random access procedure to the target primary base station to complete the LTM handover. The configuration information may include the secondary base station identifier, the secondary cell identifier corresponding to the secondary base station, resource configuration, and processing operations for the SCG configuration information. These processing operations can be releasing the SCG configuration information or keeping / unchanged the SCG configuration information.

[0058] After switching to the target primary base station, the terminal device will determine whether to release the SCG configuration information or maintain it, based on the instructions in the corresponding configuration information of the target primary base station. If the SCG configuration information is released, the terminal device enters a single-connection state; if the SCG configuration information is maintained, the terminal device maintains a dual-connection state.

[0059] However, if the processing operations for SCG configuration information are inconsistent between two adjacent handovers, for example, when handovering to MN1 for the first time, MN1 releases the SCG configuration information, while when handovering to MN2 for the second time, MN2 maintains the unchanged SCG configuration information, the terminal device cannot maintain the unchanged SCG configuration information when handovering to MN2 again because the terminal device has already released the SCG configuration information during the first handover and is in a single-connection state. This results in inconsistent actions between the terminal device and the target main base station, affecting communication between them.

[0060] Based on this, the embodiments of this application provide a solution. One approach is to unify the processing operations of different candidate master base stations for SCG configuration information during the handover preparation phase; or, after the handover preparation is completed (specifically, before or after the handover occurs), notify the candidate master base station of the current connection status of the terminal device, allowing the candidate master base station to decide whether to reconfigure the SCG or communicate according to the current connection status of the terminal device, thereby ensuring that the execution actions of the two are consistent.

[0061] The communication system applicable to this application can be a fifth-generation (5G) communication system, a hybrid architecture of LTE and 5G, a 5G New Radio (5G NR) system, or any new communication system emerging in future communication developments. The communication system includes at least two devices, and these devices can exchange signals to achieve data interaction. Exemplarily, the devices included in the communication system may be, for example, a software-defined radio (SDR) terminal and a network element, where the network element may be a base station, etc. The following example illustrates a communication system including a software-defined radio terminal and a network element.

[0062] An example of a communication system is as follows: Figure 3 As shown, it includes network element 1, network element 2, and SDR terminal.

[0063] In the embodiments provided in this application, network element 1 and network element 2 can be any device located on the network side and having wireless transceiver capabilities, including but not limited to: base stations (gNodeB or gNB) or transceiver points (TRPs) in new radio (NR). Network element 1 and network element 2 can be: macro base stations, micro base stations, pico base stations, small cells, relay stations, or balloon stations, etc. Network element 1 and network element 2 can include one or more co-located or non-co-located TRPs. Network element 1 and network element 2 can also be radio controllers, centralized units (CUs), and / or distributed units (DUs) in cloud radio access network (CRAN) scenarios. Network element 1 and network element 2 can communicate with SDR terminals or communicate with SDR terminals through relay stations.

[0064] SDR terminals can communicate with multiple network elements using different technologies. For example, an SDR terminal can communicate with network elements that support LTE networks, or with network elements that support 5G networks, and can also establish dual connections with both LTE and 5G network elements.

[0065] SDR terminals, in particular, refer to terminals that support software-defined wireless communication protocols. Typically, the frequency band, air interface protocol, and functions of an SDR terminal can be upgraded through software downloads and updates without requiring a complete hardware replacement. This gives SDR terminals high flexibility and upgradeability, enabling them to adapt to various communication environments and needs.

[0066] In the embodiments provided in this application, the SDR terminal can be of various forms, such as a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, an in-vehicle terminal device, a wireless terminal in self-driving technology, a wireless terminal in remote medical care, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. The SDR terminal can be a fixed terminal or a mobile terminal.

[0067] It should be noted that this application is also applicable to the centralized unit (CU) and distributed unit (DU) separation architecture of base stations, with the corresponding processing network elements being the CU or DU under the first main base station and the CU or DU under the second main base station.

[0068] To facilitate understanding of the specific implementation of this application, the following description will be provided in conjunction with specific embodiments.

[0069] See Figure 4 This figure is an interaction diagram of a communication method provided in an embodiment of this application, such as... Figure 4 As shown, the method includes:

[0070] S401: The first master base station sends first information to one or more second master base stations.

[0071] Here, the first primary base station refers to the primary base station connected to the terminal device, and the second primary base station refers to the candidate primary base station. The first information is used to trigger the second primary base station to determine the configuration information of the secondary base station, which refers to the secondary base station corresponding to the second primary base station.

[0072] In this embodiment, the first primary base station triggers each candidate secondary primary base station to determine a unified processing operation by sending first information to each candidate secondary primary base station. This processing operation refers to the processing operation of SCG configuration information, which can be either applying the SCG configuration information (retaining the SCG configuration information and applying dual-connectivity communication) or not applying the SCG configuration information (releasing the SCG configuration information and applying single-connectivity communication).

[0073] Specifically, if the first information carries first indication information indicating the connection status of the terminal device, then each second primary base station determines a unified processing operation for the configuration information of the secondary base station based on the connection status; if the first information carries the identifiers of each candidate second primary base station, then each second primary base station determines a unified processing operation through negotiation. The above situations will be explained in detail below.

[0074] (i) The first piece of information carries the connection status of the terminal device.

[0075] Specifically, the first primary base station determines the connection status of the terminal device and sends first information, including the connection status, to each candidate second primary base station. In this implementation, the first information can instruct each second primary base station to determine a unified processing operation based on the connection status of the terminal device.

[0076] The connection state corresponding to the terminal device can be the actual connection state of the current terminal device, the connection state determined by the first primary base station, or a predefined connection state. This connection state can be a single connection state or a dual connection state. A single connection state refers to: releasing the configuration information of the secondary base station, not applying the configuration information of the secondary base station, or applying any one of the single-connection communication methods; the service indicated by the single connection state is a single-connection service. A dual connection state refers to: retaining the configuration information of the secondary base station, applying the configuration information of the secondary base station, or reconfiguring the configuration information of the secondary base station; or applying any one of the dual-connection communication methods; the service indicated by the dual connection state is a dual-connection service.

[0077] (ii) The first information carries the identifiers of each candidate second primary base station.

[0078] Specifically, the first primary base station determines candidate secondary primary base stations and sends first information to each candidate secondary primary base station, the first information including the identifiers of all candidate secondary primary base stations. In this implementation, the first information can instruct each secondary primary base station to determine a unified processing operation through negotiation.

[0079] The negotiation process can be initiated by a second primary base station, which can be determined by the first primary base station from among candidate second primary base stations. The first information may include second indication information, which instructs the second primary base station to initiate the negotiation process. Alternatively, the second primary base station initiating the negotiation process can be elected through other means.

[0080] S402: The second primary base station determines the processing operation for the configuration information of the secondary base station based on the first information, and determines the second information.

[0081] The second information includes configuration information of the second primary base station for the secondary base station, and / or processing operations for the configuration information. Specifically, the content carried by the second information can be defined according to the actual situation. For example, the second information may only include the configuration information of the secondary base station, in which case the implicit processing operation for the configuration information is to apply the configuration information; or the second information includes configuration information, in which case it may also carry processing operations, which may be to apply the configuration information or not apply the configuration information; or the second information only includes processing operations, in which case the processing operation may be to not apply the configuration information.

[0082] In this embodiment, each second main base station determines a unified processing operation for the configuration information based on the content carried in the first information.

[0083] If the first information includes first indication information indicating the connection status of the terminal device, the second main base station determines the processing operation for the configuration information based on the connection status and determines the second information. The processing operation determined based on the connection status can be matched with that connection status. For example, if the terminal device's connection status is single-connection, the processing operation is to release the configuration information, not apply the configuration information, or apply single-connection; if the terminal device's connection status is dual-connection, the processing operation is to retain the configuration information, apply the configuration information, or apply dual-connection communication.

[0084] If the first information includes the identifiers of each candidate second primary base station, then the second primary base station negotiates the connection status of the terminal device with other candidate second primary base stations, determines the processing operation based on the connection status, and then determines the second information. In this implementation, the processing operation is matched with the connection status of the terminal device.

[0085] S403: The second master base station sends the second information to the first master base station.

[0086] S404: The first main base station receives the second information and obtains the third information based on the second information.

[0087] After receiving the second information, the first main base station generates the third information, or processes the second information to obtain the third information. The third information includes the second information.

[0088] S405: The first main base station sends third information to the terminal device so that after the terminal device switches from the first main base station to the second main base station, it executes the corresponding communication strategy according to the processing operation indicated in the third information.

[0089] The third information can be carried by the RRC reconfiguration message or by the MAC CE. The connection status indication information in the candidate MN configuration information within the third information can also be a unified connection status indication information directly configured by the first master base station for all candidate MNs.

[0090] In this embodiment, since each second main base station performs the same processing operation on the configuration information, when the terminal device switches between different second main base stations, it can perform a matching communication strategy according to the processing operation indicated by the switched second main base station, so that the terminal device and the network side perform the same actions.

[0091] It should be noted that, Figure 4 Taking two secondary master base stations as an example, the first master base station can send the first information to both secondary master base stations simultaneously; it can also send the first information to the first master base station 1 first, and then send the first information to the second master base station 2; or it can send the first information to the second master base station 2 first, and then send the first information to the first master base station 1. This embodiment does not limit this. Similarly, the order in which the two secondary master base stations send the second information to the first master base station is also not limited. Figure 4 The illustrated embodiment is limited.

[0092] To facilitate understanding the handover process of terminal devices between different MNs, the following will combine... Figure 5a and Figure 5b Please provide an explanation.

[0093] For example, Figure 5a As shown, during the LTM handover preparation phase, S-MN (first primary base station) sends the connection status of the terminal equipment to C-MN1 (candidate second primary base station) and C-MN2 (candidate second primary base station) respectively, triggering C-MN1 and C-MN2 to perform the process of adding auxiliary node SN, completing the addition of auxiliary node, and obtaining SCG configuration information.

[0094] C-MN1 and C-MN2 determine the connection status of the terminal device and respond to S-MN, that is, send an acknowledgment message for the connection status to S-MN, or send SCG configuration information to S-MN.

[0095] The S-MN sends the configuration information, including connection status, from each C-MN to the terminal device via RRC reconfiguration messages or MAC CE messages, so that the terminal device can perform uplink and downlink synchronization of the C-MN according to the RRC reconfiguration messages or MAC CE messages.

[0096] After receiving a handover command from the S-MN, the terminal device executes the corresponding operation based on the target MN in the handover command and the connection status indication information in the configuration information of the target MN. Alternatively, after receiving a handover command from the S-MN, the terminal device executes the corresponding operation based on the unified connection status indication information configured by the S-MN.

[0097] For example, Figure 5b As shown, during the LTM handover preparation phase, the S-MN informs one or more C-MNs of the candidate MN information. This candidate MN information includes a list of candidate MN identifiers.

[0098] One or more C-MNs will trigger the process of adding auxiliary nodes, complete the addition of auxiliary nodes, and obtain SCG configuration information.

[0099] Each C-MN negotiates and determines a unified terminal connection status. After reaching a consensus, the C-MN determines the connection status of the terminal device and responds to the original MN, that is, it sends a unified connection status indication information to the original MN, or it can send SCG configuration information.

[0100] The S-MN sends the configuration information (including unified connection status indication information) of one or more C-MNs to the terminal device via RRC reconfiguration messages or MAC CE messages. The terminal device performs uplink and downlink synchronization of the C-MN according to the RRC reconfiguration messages or MAC CE messages.

[0101] After receiving a handover command from the S-MNMN, the terminal device executes the corresponding operation based on the target MN in the handover command and the connection status indication information in the configuration information sent by the target MN. Alternatively, after receiving a handover command from the S-MN, the terminal device executes the corresponding operation based on the unified connection status indication information configured by the S-MN.

[0102] In some application scenarios, when the terminal device is still connected to the first primary base station, if the configuration information of the secondary base station corresponding to the first primary base station is updated, the first primary base station sends a fourth message to each of the second primary base stations. This fourth message includes the update result of the updated configuration information, which triggers the second primary base stations to update the configuration information of their corresponding secondary base stations. Specifically, the update of the configuration information of the secondary base station corresponding to the first primary base station includes a change in the secondary base station and / or a change in the secondary cell to which the secondary base station is connected. The update result includes the changed secondary base station identifier and / or one or more changed secondary cell identifiers.

[0103] After receiving the fourth piece of information, the second primary base station can trigger an update of its corresponding SCG configuration information. Specifically, the second primary base station adds the secondary base station SN and obtains the new SCG configuration information.

[0104] If the update occurs before the first primary base station sends a handover command to the terminal device, indicating that the terminal device is still communicating with the first primary base station, the second primary base station sends fifth information to the first primary base station. This fifth information includes the configuration information of its corresponding secondary base station determined by the second primary base station based on the update result, and / or processing operations related to this configuration information. The first primary base station then sends sixth information, including the fifth information, to the terminal device so that after the terminal device switches from the first primary base station to the second primary base station, it can execute the corresponding communication strategy according to the new configuration information.

[0105] If the update occurs after the first primary base station sends a handover command to the terminal device, the second primary base station sends fifth information to the terminal device so that the terminal device can execute the corresponding communication strategy according to the new configuration information after switching from the first primary base station to the second primary base station. In this scenario, the second primary base station is the target second primary base station indicated in the handover command, which is the second primary base station that the terminal device is about to switch to.

[0106] In this process, the first primary base station sends a handover command to the terminal device, instructing the terminal device to disconnect from the first primary base station. Specifically, the disconnection of the terminal device from the first primary base station can also be expressed as "handover execution" or "handover occurrence," etc.

[0107] See Figure 6 This figure is an interaction signaling diagram of another communication method provided in an embodiment of this application, such as... Figure 6 As shown, the method includes:

[0108] S601: The second master base station sends the second configuration information to the first master base station.

[0109] The second configuration information includes the configuration information of the secondary base station corresponding to the second primary base station, and / or processing operations on the configuration information.

[0110] S602: The first main base station sends the first configuration information to the terminal device.

[0111] The first configuration information includes the second configuration information of one or more secondary base stations corresponding to the second primary base station.

[0112] S603: The first master base station sends the seventh information to the second master base station.

[0113] In this embodiment, the first master base station can first determine whether the current connection state of the terminal device matches the processing operation of the second master base station for the configuration information. If they do not match, a seventh message is sent, which includes the connection state of the terminal device. If they match, the seventh message does not need to be sent. Alternatively, the first master base station may not perform the above determination operation and directly send the seventh message to the second master base station. Or, when the terminal's current state is SCG configuration release or single connection state, the seventh message is sent to the second master base station. This seventh message is used to notify the second master base station to determine the processing operation for the configuration information.

[0114] S604: The second main base station receives the seventh information sent by the first main base station and performs corresponding operations based on the seventh information.

[0115] In this embodiment, after receiving the seventh information, the second main base station can perform corresponding operations according to a pre-configured response strategy. Specifically, this may include the following:

[0116] One approach is that if the connection state of the terminal device matches the processing operation for the second configuration information, the second primary base station provides the target service to the terminal device, which is consistent with the service indicated by the connection state of the terminal device. For example, if the service indicated by the connection state of the terminal device is a single-connection service and the service indicated by the processing operation is also a single-connection service, then the second primary base station provides the single-connection service to the terminal device; if the service indicated by the connection state of the terminal device is a dual-connection service and the service indicated by the processing operation is also a dual-connection service, then the second primary base station provides the dual-connection service to the terminal device.

[0117] Alternatively, if the service indicated by the connection status of the terminal device is a single-connection service and the service indicated by the processing operation for the second configuration information is a dual-connection service, the second main base station provides a single-connection service to the terminal device. That is, when the service types indicated by the two are different, the second main base station ignores its own indicated service type and provides services to the terminal device according to the service type indicated by the connection status of the terminal device.

[0118] Another approach is that if the service indicated by the connection status of the terminal device is a single-connection service and the service indicated by the processing operation for the second configuration information is a dual-connection service, the second primary base station can initiate the addition of a secondary node and execute the SCG configuration. Furthermore, the second primary base station can also reacquire the configuration information of the secondary base station and send new configuration information. It should be noted that the reacquired configuration information here may or may not be the same as the configuration information mentioned in S601.

[0119] Specifically, when the terminal device is not disconnected from the first primary base station, if the service indicated by the connection status of the terminal device is a single-connection service and the service indicated by the processing operation for the configuration information is a dual-connection service, one approach is as follows: The second primary base station stores this seventh information. When the terminal switches to this second base station, the second primary base station ignores the indication information for the processing operation in the configuration information. Another approach is as follows: The second primary base station re-adds the auxiliary node, performs SCG configuration, and obtains the configuration information. After re-obtaining the configuration information of the auxiliary base station, the second primary base station sends an eighth information to the first primary base station. This eighth information includes the configuration information of the auxiliary base station and / or the processing operation for the configuration information. The first primary base station then sends a ninth information, including the eighth information, to the terminal device so that after the terminal device switches from the first primary base station to the second primary base station, it can execute the corresponding communication strategy according to the processing operation for the configuration information.

[0120] It should be noted that, Figure 6 Taking two secondary master base stations as an example, the first master base station can simultaneously send the seventh information to both secondary master base stations; it can also send the seventh information to the first master base station 1 first, and then send the seventh information to the second master base station 2; or it can send the seventh information to the second master base station 2 first, and then send the seventh information to the first master base station 1. This embodiment does not limit this. Similarly, the order in which the two secondary master base stations perform corresponding operations based on the seventh information is also not limited. Figure 6 The illustrated embodiment is limited.

[0121] For example, Figure 7a As shown, one or more second master base stations C-MN send second configuration information to the first master base station S-MN, and S-MN sends the second configuration information to the terminal device through RRC reconfiguration message.

[0122] The S-MN sends the seventh message to one or more C-MNs. This applies if the service indicated by the connection status of the terminal device is a single-connection service and the service indicated by the processing operation for the configuration information is a dual-connection service.

[0123] One approach: The second main base station stores this seventh information. When the terminal switches to this second base station, the second main base station ignores the instruction information for processing operations in the configuration information it sent.

[0124] One approach: The second primary base station adds a secondary node and configures the SCG (Self-Governing Group). After reacquiring the configuration information of the secondary base station, while the terminal device is still connected to the first primary base station, the second primary base station sends an eighth message to the first primary base station. This eighth message includes the configuration information of the secondary base station and / or processing operations related to the configuration information. The first primary base station then sends a ninth message, including the eighth message, to the terminal device so that after the terminal device switches from the first primary base station to the second primary base station, it can execute the corresponding communication strategy based on the processing operations related to the configuration information.

[0125] For example, Figure 7b As shown, one or more C-MNs send second configuration information to the first master base station S-MN, and the S-MN sends the second configuration information to the terminal device through RRC reconfiguration messages.

[0126] After the handover preparation is completed, S-MN sends a handover command, which includes the target second primary base station T-MN (C-MN1), so that the terminal device can switch from S-MN to C-MN1 after receiving the handover command.

[0127] After sending the handover command, S-MN sends the seventh information to the target second primary base station T-MN. This applies if the service indicated by the connection status of the terminal device is single-connection service and the service indicated by the processing operation for the configuration information is dual-connection service.

[0128] One approach: The second primary base station adds the secondary node and configures the SCG. After obtaining the configuration information from the secondary base station, the second primary base station sends the configuration information to the terminal so that the terminal can apply the configuration information.

[0129] One approach: The second primary base station ignores the instructions for processing operations in the configuration information it sends.

[0130] It should be noted that, in Figure 6 In the illustrated method embodiment, when the terminal device is still connected to the first primary base station, if the configuration information of the secondary base station corresponding to the first primary base station is updated, the first primary base station sends fourth information to each of the second primary base stations. The fourth information includes the update result of the updated configuration information, which triggers the second primary base stations to update the configuration information of their corresponding secondary base stations. Specifically, the update of the configuration information of the secondary base station corresponding to the first primary base station includes a change in the secondary base station and / or a change in the secondary cell to which the secondary base station is connected. The update result includes the changed secondary base station identifier and / or one or more changed secondary cell identifiers.

[0131] After receiving the fourth piece of information, the second primary base station can trigger an update of its corresponding SCG configuration information. Specifically, the second primary base station adds the secondary base station SN and obtains the new SCG configuration information.

[0132] If the update occurs before the first primary base station sends a handover command to the terminal device, indicating that the terminal device is still communicating with the first primary base station, the second primary base station sends fifth information to the first primary base station. This fifth information includes the configuration information of its corresponding secondary base station determined by the second primary base station based on the update result, and / or processing operations related to this configuration information. The first primary base station then sends sixth information, including the fifth information, to the terminal device so that after the terminal device switches from the first primary base station to the second primary base station, it can execute the corresponding communication strategy according to the new configuration information.

[0133] If the update occurs after the first primary base station sends a handover command to the terminal device, the second primary base station sends fifth information to the terminal device so that the terminal device can execute the corresponding communication strategy according to the new configuration information after switching from the first primary base station to the second primary base station. In this scenario, the second primary base station is the target second primary base station indicated in the handover command, which is the second primary base station that the terminal device is about to switch to.

[0134] Below, in conjunction with Figure 8 as well as Figure 9 This section further introduces the hardware implementation methods of network elements and SDR terminals.

[0135] See Figure 8 The diagram illustrates the hardware structure of a network element capable of performing the aforementioned tasks. Figure 4 as well as Figure 6 The method performed by the first master base station or the second master base station in the illustrated embodiment. Figure 8 The network element shown includes at least one processor 111, at least one memory 112, at least one transceiver 113, at least one network interface 114, and one or more antennas 115. The processor 111, memory 112, transceiver 113, and network interface 114 are connected, for example, via a bus. In this embodiment, the connection may include various interfaces, transmission lines, or buses, etc., and this embodiment is not limited in this respect. The antenna 115 is connected to the transceiver 113. The network interface 114 is used to enable the network element to connect to other communication devices through a communication link. For example, the network interface 114 may include a network interface between the network element and network elements in the core network, such as an S1 interface; the network interface may also include a network interface between the network element and other network elements, such as an X2 or Xn interface.

[0136] in, Figure 8 The processor 111 shown can specifically perform the network element processing actions in the above method, the memory 112 can perform the storage actions in the above method, the transceiver 113 and the antenna 115 can perform the air interface transmission and reception actions in the above method, and the network interface 114 can perform the interaction actions with network elements or other network elements in the above method.

[0137] The processor in this application embodiment, such as processor 111, may include, but is not limited to, at least one of the following: a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), a microcontroller unit (MCU), or an artificial intelligence processor, etc., which are various computing devices that run software. Each computing device may include one or more cores for executing software instructions to perform calculations or processing. The processor may be a separate semiconductor chip or integrated with other circuits into a single semiconductor chip. For example, it may be integrated with other circuits (such as encoding / decoding circuits, hardware acceleration circuits, or various bus and interface circuits) to form a SoC (System-on-a-Chip), or it may be integrated as a built-in processor in an ASIC. The ASIC with the integrated processor may be packaged separately or packaged together with other circuits. In addition to including cores for executing software instructions to perform calculations or processing, the processor may further include necessary hardware accelerators, such as FPGAs (Field-Programmable Gate Arrays), PLDs (Programmable Logic Devices), or logic circuits that implement dedicated logic operations.

[0138] The memory in the embodiments of this application may include at least one of the following types: read-only memory (ROM) or other types of static storage devices capable of storing static information and instructions; random access memory (RAM) or other types of dynamic storage devices capable of storing information and instructions; or electrically erasable programmable-only memory (EEPROM). In some scenarios, the memory may also be a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media, or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto.

[0139] The memory 112 can exist independently and be connected to the processor 111. Optionally, the memory 112 can be integrated with the processor 111, for example, integrated into a single chip. The memory 112 can store program code that executes the technical solutions of the embodiments of this application, and its execution is controlled by the processor 111. The various types of computer program code being executed can also be considered as drivers for the processor 111. For example, the processor 111 executes the computer program code stored in the memory 112 to implement the technical solutions of the embodiments of this application.

[0140] Transceiver 113 can be used to support the reception or transmission of radio frequency (RF) signals between network elements and other devices. Transceiver 113 can be connected to antenna 115. Transceiver 113 includes a transmitter Tx and a receiver Rx. Specifically, one or more antennas 115 can receive RF signals. The receiver Rx of transceiver 113 is used to receive the RF signals from the antennas, convert the RF signals into digital baseband signals or digital intermediate frequency (IF) signals, and provide the digital baseband signals or IF signals to the processor 111 so that the processor 111 can perform further processing on the digital baseband signals or IF signals, such as demodulation and decoding. In addition, the transmitter Tx in transceiver 113 is also used to receive modulated digital baseband signals or IF signals from processor 111, convert the modulated digital baseband signals or IF signals into RF signals, and transmit the RF signals through one or more antennas 115. Specifically, the receiver Rx can selectively perform one or more stages of downmixing and analog-to-digital conversion on the radio frequency signal to obtain a digital baseband signal or a digital intermediate frequency (IF) signal. The order of the downmixing and IF conversion processes is adjustable. The transmitter Tx can selectively perform one or more stages of upmixing and digital-to-analog conversion on the modulated digital baseband signal or digital IF signal to obtain a radio frequency signal. The order of the upmixing and IF conversion processes is also adjustable. The digital baseband signal and the digital IF signal can be collectively referred to as digital signals.

[0141] Figure 9 The following is an example of the composition of an SDR terminal provided in this application embodiment. The SDR terminal may be, for example, a mobile phone, a smart wearable device (such as a smartwatch), etc. Taking a mobile phone as an example, the SDR terminal may include a processor 310, an external memory interface 320, an internal memory 321, a display screen 330, a camera 340, an antenna 1, an antenna 2, a mobile communication module 350, and a wireless communication module 360, etc.

[0142] It is understood that the structure illustrated in this embodiment does not constitute a specific limitation on the SDR terminal. In other embodiments, the SDR terminal may include more or fewer components than illustrated, or combine some components, or split some components, or have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0143] Processor 310 may include one or more processing units, such as application processor (AP), modem processor, graphics processing unit (GPU), image signal processor (ISP), controller, time-frequency codec, digital signal processor (DSP), baseband processor, and / or neural network processing unit (NPU). Different processing units may be independent devices or integrated into one or more processors.

[0144] It is understood that the interface connection relationships between the modules illustrated in this embodiment are merely illustrative and do not constitute a structural limitation on the SDR terminal. In other embodiments of this application, the SDR terminal may also employ different interface connection methods or combinations of multiple interface connection methods as described in the above embodiments.

[0145] The external storage interface 320 can be used to connect an external storage card, such as a Micro SD card, to expand the storage capacity of the SDR terminal. The external storage card communicates with the processor 310 through the external storage interface 320 to perform data storage functions. For example, music, time and frequency files can be saved on the external storage card.

[0146] Internal memory 321 can be used to store computer executable program code, including instructions. Processor 310 executes various functional applications and data processing of the SDR terminal by running the instructions stored in internal memory 321. Internal memory 321 may include a program storage area and a data storage area. The program storage area may store the operating system, at least one application program required for a function (such as sound playback, image playback, etc.), etc. The data storage area may store data created during the use of the SDR terminal (such as time-frequency stream data), etc. In addition, internal memory 321 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, universal flash storage (UFS), etc. Processor 310 executes various functions and data processing of the SDR terminal by running instructions stored in internal memory 321 and / or instructions stored in memory located in the processor.

[0147] The wireless communication function of the SDR terminal can be implemented through antenna 1, antenna 2, mobile communication module 350, wireless communication module 360, modem processor, and baseband processor.

[0148] Antenna 1 and antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in the SDR terminal can be used to cover one or more communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example, antenna 1 can be reused as a diversity antenna for a wireless local area network. In some other embodiments, the antennas can be used in conjunction with a tuning switch.

[0149] The mobile communication module 350 can provide solutions for wireless communication applications including 2G / 3G / 4G / 5G in SDR terminals. The mobile communication module 350 may include at least one filter, switch, power amplifier, low-noise amplifier (LNA), etc. The mobile communication module 350 can receive electromagnetic waves via antenna 1, and perform filtering, amplification, and other processing on the received electromagnetic waves before transmitting them to a modem processor for demodulation. The mobile communication module 350 can also amplify the signal modulated by the modem processor and convert it into electromagnetic waves for radiation via antenna 1. In some embodiments, at least some functional modules of the mobile communication module 350 may be housed in the processor 310. In some embodiments, at least some functional modules of the mobile communication module 350 and at least some modules of the processor 310 may be housed in the same device.

[0150] In some embodiments, the SDR terminal initiates or receives call requests via the mobile communication module 350 and the antenna 1.

[0151] In addition, an operating system runs on top of the aforementioned components. Examples include iOS, Android, and Windows operating systems. Applications can be installed and run on this operating system. Those skilled in the art will understand that, for the sake of convenience and brevity, explanations and beneficial effects of the relevant content in any of the SDR terminals provided above can be found in the corresponding method embodiments provided above, and will not be repeated here.

[0152] Furthermore, embodiments of this application also provide a computer-readable storage medium storing instructions that, when executed on one or more computing devices, cause the one or more computing devices to perform the communication method described in the above embodiments.

[0153] Furthermore, this application also provides a computer program product, which, when executed by one or more computing devices, allows the computing devices to execute any of the aforementioned communication methods. The computer program product can be a software installation package; when any of the aforementioned communication methods is required, the computer program product can be downloaded and executed on a computer.

[0154] Through the above description of the embodiments, those skilled in the art can clearly understand that this application can be implemented by means of software plus necessary general-purpose hardware, or it can be implemented by special-purpose hardware including application-specific integrated circuits, special-purpose CPUs, special-purpose memory, special-purpose components, etc. Generally, any function performed by a computer program can be easily implemented by corresponding hardware, and the specific hardware structure used to implement the same function can also be diverse, such as analog circuits, digital circuits, or special-purpose circuits. However, for this application, software program implementation is more often the preferred implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a readable storage medium, such as a computer floppy disk, USB flash drive, mobile hard disk, ROM, RAM, magnetic disk, or optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, training equipment, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0155] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product.

[0156] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, training device, or data center to another website, computer, training device, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a training device or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state drives (SSDs)).

[0157] The system architecture and business scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

Claims

1. A communication method, characterized in that, The method is applied to the first main base station and includes: Send first information to one or more second primary base stations, the first information being used to trigger the second primary base stations to determine the processing operation of configuration information for secondary base stations, the second primary base stations being candidate primary base stations; Receive second information sent by the second main base station, the second information including configuration information of the auxiliary base station corresponding to the second main base station, and / or processing operations on the configuration information; A third message, including the second message, is sent to the terminal device so that after the terminal device switches from the first main base station to the second main base station, it executes the corresponding communication strategy according to the processing operation.

2. The method according to claim 1, characterized in that, The processing operation is determined by the second master base station based on the first indication information carried by the first information, whereby the first indication information indicates the connection status of the terminal device, or the processing operation is determined by multiple second master base stations through negotiation.

3. The method according to claim 2, characterized in that, Sending the first information to one or more second main base stations includes: Determine the connection status of the terminal device; Send first information to one or more second primary base stations, the first information including the connection status, the first information instructing the second primary base stations to determine the processing operation for the configuration information based on the connection status.

4. The method according to claim 3, characterized in that, The connection status is the current connection status of the terminal device, or the connection status is the connection status determined by the first main base station.

5. The method according to claim 3 or 4, characterized in that, The processing operations included in the second information match the connection status indicated by the first indication information.

6. The method according to any one of claims 2-5, characterized in that, The connection state is either a single connection state or a dual connection state; The single-connection state includes one of the following: releasing the configuration information of the secondary base station, not applying the configuration information of the secondary base station, and applying single-connection communication; The dual-connectivity state includes one of the following: retaining the configuration information of the secondary base station, applying the configuration information of the secondary base station, reconfiguring the configuration information of the secondary base station, and applying dual-connectivity communication.

7. The method according to claim 2, characterized in that, Sending the first information to the second main base station includes: The candidate second primary base station was determined; Send first information to each candidate second primary base station, the first information including the identifiers of all candidate second primary base stations.

8. The method according to claim 7, characterized in that, The method further includes: The first information further includes second indication information, which is used to indicate the second primary base station that initiates the negotiation process from among the candidate second primary base stations.

9. The method according to any one of claims 1-8, characterized in that, The method further includes: When the configuration information of the auxiliary base station corresponding to the first primary base station is updated, a fourth message is sent to one or more second primary base stations. The fourth message includes the update result of the updated configuration information and is used to trigger the second primary base station to update the configuration information of the auxiliary base station.

10. The method according to claim 9, characterized in that, The method further includes: If the update occurs before the first primary base station sends a handover instruction to the terminal device, the fifth information sent by the second primary base station is received. The fifth information includes the configuration information of the secondary base station determined by the second primary base station based on the update result, and / or the processing operation for the configuration information. The second primary base station is one or more candidate primary base stations. A sixth message, including the fifth message, is sent to the terminal device so that after the terminal device switches from the first main base station to the second base station, it executes the corresponding communication strategy according to the processing operation.

11. The method according to claim 9, characterized in that, If the update occurs after the first primary base station sends a handover instruction to the terminal device, the second primary base station is the target second primary base station determined by the first primary base station from one or more candidate second primary base stations.

12. A communication method, characterized in that, The method is applied to a first main base station, and the method includes: Send first configuration information to the terminal device. The first configuration information includes second configuration information sent by one or more second main base stations. The second configuration information includes configuration information of the auxiliary base station corresponding to the second main base station, and / or processing operations on the configuration information. A seventh message is sent to the second primary base station. This seventh message includes the connection status of the terminal device. The seventh message is used to notify the second primary base station to determine the processing operation for the configuration information of the secondary base station.

13. The method according to claim 12, characterized in that, Send the seventh message to the second main base station, including: Before the first master base station sends a handover command to the terminal device, it sends seventh information to one or more second master base stations; or... After the first base station sends a handover instruction to the terminal device, it sends seventh information to the target second main base station, which is the second main base station determined by the first main base station from one or more candidate second main base stations.

14. The method according to claim 12 or 13, characterized in that, The method further includes: If the terminal device has not disconnected from the first base station, it receives the eighth information sent by the second main base station. The eighth information includes the configuration information of the auxiliary base station that the second main base station has reacquired, and / or the processing operation for the configuration information. A ninth message is sent to the terminal device, the ninth message including the eighth message, so that after the terminal device switches from the first main base station to the second main base station, it executes the corresponding communication strategy according to the processing operation.

15. The method according to any one of claims 12-14, characterized in that, The connection state is either a single connection state or a dual connection state; The single-connection state includes one of the following: releasing the configuration information of the secondary base station, not applying the configuration information of the secondary base station, and applying single-connection communication; The dual-connectivity state includes one of the following: retaining the configuration information of the secondary base station, applying the configuration information of the secondary base station, reconfiguring the configuration information of the secondary base station, and applying dual-connectivity communication.

16. A communication method, characterized in that, The method is applied to a second main base station, and the method includes: The system receives first information sent by the first primary base station, which is used to trigger the second primary base station to determine the configuration information of the secondary base station. The second primary base station is a candidate primary base station. Based on the first information, a processing operation for the configuration information is determined, and a second information is determined, the second information including the configuration information of the auxiliary base station corresponding to the second primary base station, and / or the processing operation for the configuration information; The second information is sent to the first master base station so that the first master base station sends the third information, including the second information, to the terminal device so that after the terminal device switches from the first master base station to the second master base station, it executes the corresponding communication strategy according to the processing operation.

17. The method according to claim 16, characterized in that, The step of determining the processing operation for the configuration information based on the first information and determining the second information includes: If the first information includes the connection status of the terminal device, a processing operation for the configuration information is determined based on the connection status, and second information is determined, wherein the processing operation matches the connection status.

18. The method according to claim 17, characterized in that, The connection status is the current connection status of the terminal device, or the connection status is the connection status determined by the first main base station.

19. The method according to claim 16 or 17, characterized in that, The connection state is either a single connection state or a dual connection state; The single-connection state includes one of the following: releasing the configuration information of the secondary base station, not applying the configuration information of the secondary base station, and applying single-connection communication; The dual-connectivity state includes one of the following: retaining the configuration information of the secondary base station, applying the configuration information of the secondary base station, reconfiguring the configuration information of the secondary base station, and applying dual-connectivity communication.

20. The method according to claim 16, characterized in that, The step of determining the processing operation for the configuration information based on the first information and determining the second information includes: If the first information includes the identifiers of each candidate second primary base station, the connection status of the terminal device is negotiated with the other candidate second primary base stations; Based on the connection state, a processing operation is determined, and the second information is determined.

21. The method according to any one of claims 16-20, characterized in that, The method further includes: Receive fourth information sent by the first primary base station, the fourth information including the update result of the configuration information of the auxiliary base station corresponding to the first primary base station being updated; Based on the fourth information, the configuration information of the auxiliary base station is determined, and the fifth information is determined. The fifth information includes the configuration information of the auxiliary base station corresponding to the second primary base station, and / or the processing operations for the configuration information. If the update occurs before the first master base station sends a handover instruction to the terminal device, the fifth information is sent to the first master base station so that the first master base station sends a sixth information including the fifth information to the terminal device, so that after the terminal device switches from the first master base station to the second base station, it executes the corresponding communication strategy according to the processing operation. If the update occurs after the first primary base station sends a handover instruction to the terminal device, the fifth information is sent to the terminal device so that after the terminal device switches to the second base station, it executes the corresponding communication strategy according to the processing operation.

22. A communication method, characterized in that, The method is applied to a second main base station, and the method includes: Send second configuration information to the first primary base station, the second configuration information including configuration information of the secondary base station corresponding to the second primary base station, and / or processing operations for the configuration information; The system receives a seventh message sent by the first master base station. The seventh message includes the connection status of the terminal device. The seventh message is used to notify the second master base station to determine the processing operation for the configuration information.

23. The method according to claim 22, characterized in that, The method further includes: If the connection status of the terminal device matches the processing operation for the configuration information, a target service is provided to the terminal device, and the target service is consistent with the service indicated by the connection status of the terminal device.

24. The method according to claim 22, characterized in that, The method further includes: If the service indicated by the connection status of the terminal device is a single connection service and the service indicated by the processing operation for the second configuration information is a dual connection service, then provide a single connection service to the terminal device.

25. The method according to claim 22, characterized in that, The method further includes: When the terminal device is not disconnected from the first main base station, if the service indicated by the connection status of the terminal device is single connection service and the service indicated by the processing operation for the configuration information is dual connection service, the configuration information of the auxiliary base station is re-acquired. The first primary base station sends an eighth message, which includes configuration information of the secondary base station and / or processing operations for the configuration information, so that the first primary base station sends a ninth message, including the eighth message, to the terminal device, so that after the terminal device switches from the first primary base station to the second primary base station, it executes the corresponding communication strategy according to the processing operations.

26. The method according to claim 22, characterized in that, The method further includes: When the terminal device disconnects from the first main base station, if the service indicated by the connection status of the terminal device is single connection service and the service indicated by the processing operation for the configuration information is dual connection service, the configuration information of the secondary base station is re-acquired. The terminal device is sent an eighth message, which includes the configuration information of the auxiliary base station and / or processing operations for the configuration information, so that the terminal device can execute a corresponding communication strategy according to the processing operations.

27. The method according to any one of claims 22-26, characterized in that, The connection state is either a single connection state or a dual connection state; The single-connection state includes one of the following: releasing the configuration information of the secondary base station, not applying the configuration information of the secondary base station, and applying single-connection communication; the service indicated by the single-connection state is the single-connection service. The dual-connectivity state includes one of the following: retaining the configuration information of the secondary base station, applying the configuration information of the secondary base station, reconfiguring the configuration information of the secondary base station, and applying dual-connectivity communication; the service indicated by the dual-connectivity state is the dual-connectivity service.

28. A network element, characterized in that, include: A transceiver, configured to perform the receiving and transmitting operations in the method of any one of claims 1-15, or to perform the receiving and transmitting operations in the method of any one of claims 16-27; A processor for performing operations other than the receiving operation and the sending operation in the method of any one of claims 1-15, or for performing operations other than the receiving operation and the sending operation in the method of any one of claims 16-27.

29. A communication system, characterized in that, This includes terminal equipment and network elements; The network element is used to perform the method described in any one of claims 1-15, or to perform the method described in any one of claims 16-27; The terminal device is used to communicate with the network element based on the configuration information sent by the network element.

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