Configuration method for wireless communication, device, and storage medium

Abstract

The present application provides a configuration method for wireless communication, a device, and a storage medium. The method comprises: acquiring indication information; and, on the basis of the indication information, when transitioning to a radio resource control inactive state (RRC_INACTIVE), storing configuration information of L1 / L2 triggered mobility (LTM). According to the present application, by means of storing the configuration information of the LTM when transitioning to RRC_INACTIVE instead of deleting the configuration information of the LTM, if, next time, a terminal device still accesses a candidate cell corresponding to the configuration information of the LTM, indication to a network device and continued use of the configuration information of the LTM can be achieved. As a result, downlink signaling overhead is reduced, and the impact of interruption due to state transition on data transmission and handover is reduced, thereby improving user experience.

Description

Wireless communication configuration method, device and storage medium

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on February 7, 2024, with application number 202410175800.0 and application name “Method, device and storage medium for wireless communication configuration”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a method, device, and storage medium for wireless communication configuration. Background Art

[0003] In related technologies, when a terminal device transitions to the RRC (Radio Resource Control) inactive state (RRC_INACTIVE), it releases the corresponding LTM (L1 / L2 Triggered Mobility, where L1 is Layer 1 and L2 is Layer 2) configuration information. Consequently, when the terminal device transitions from RRC_INACTIVE to the RRC connected state (RRC_CONNECTED), or when the terminal device performs a cell handover, the LTM configuration information needs to be re-sent to the terminal device, resulting in high downlink signaling overhead and the potential for interruption of data transmission and handover due to state transition. Summary of the Invention

[0004] The embodiments of the present application provide a method, device, and storage medium for wireless communication configuration, which avoid large downlink signaling overhead and reduce the impact of state migration on data transmission and switching interruptions.

[0005] In a first aspect, an embodiment of the present application proposes a method for wireless communication configuration, the method comprising: obtaining indication information; and saving L1 / L2 triggered mobility configuration information when migrating to a wireless resource control inactive state based on the indication information.

[0006] In an optional embodiment of the first aspect, the indication information is carried in a radio resource control release message.

[0007] In an optional embodiment of the first aspect, the radio resource control release message carries at least one of a timer, a cell identifier of a valid cell, and a radio notification area list of a valid area, the timer is used to indicate the configuration information of L1 / L2 triggered mobility, and the cell identifier of the valid cell and the radio notification area list of the valid area are both used to indicate the applicable cell of the configuration information of L1 / L2 triggered mobility.

[0008] In an optional embodiment of the first aspect, the configuration information of L1 / L2 triggered mobility includes: configuration information for the first service cell, and configuration information of each candidate cell of the first service cell, where the first service cell is the service cell when the configuration information of L1 / L2 triggered mobility is stored.

[0009] In an optional embodiment of the first aspect, the configuration information of the candidate cell includes: at least one of L1 or L2 measurement information, channel resource information, user plane bearer information, control plane bearer information, and advance acquisition of uplink or downlink synchronization information.

[0010] In an optional embodiment of the first aspect, the method further includes: sending first information to the network device, where the first information is used to indicate that configuration information for triggering L1 / L2 mobility is available.

[0011] In an optional embodiment of the first aspect, the first information includes: a terminal device identifier and / or a candidate cell identifier, where the candidate cell identifier is a cell identifier of the candidate cell in the configuration information of L1 / L2 triggered mobility.

[0012] In an optional embodiment of the first aspect, the first information is carried in a radio resource control recovery request message.

[0013] In an optional embodiment of the first aspect, the first service cell when saving the configuration information of L1 / L2 triggered mobility is the same as the second service cell when sending the first information; or, the first service cell when saving the configuration information of L1 / L2 triggered mobility is different from the second service cell when sending the first information.

[0014] In an optional embodiment of the first aspect, the second service cell is a candidate cell in the configuration information of L1 / L2 triggered mobility, and the first information is sent to the network device, including: under preset conditions, applying the configuration information of L1 / L2 triggered mobility, and sending the first information to the network device, the preset conditions include: the current time meets the time specified by the timer and / or the second service cell belongs to a valid cell.

[0015] In an optional embodiment of the first aspect, the method further includes: obtaining second information, where the second information indicates a processing method for the configuration information of L1 / L2 triggered mobility; and performing corresponding processing on the configuration information of L1 / L2 triggered mobility according to the processing method.

[0016] In an optional embodiment of the first aspect, the processing method includes: retaining the configuration information of L1 / L2 triggered mobility, deleting the configuration information of LTM, updating the configuration information of L1 / L2 triggered mobility, or adding the configuration information of L1 / L2 triggered mobility.

[0017] In a second aspect, an embodiment of the present application provides a method for wireless communication configuration, including: obtaining first information, where the first information indicates that configuration information for L1 / L2 triggered mobility is available.

[0018] In an optional embodiment of the second aspect, the first information is carried in a radio resource control recovery request message.

[0019] In an optional embodiment of the second aspect, the first information includes: a terminal device identifier and / or a candidate cell identifier, where the candidate cell identifier is a cell identifier of the candidate cell in the configuration information of the radio resource control.

[0020] In an optional embodiment of the second aspect, it also includes: obtaining the configuration information of L1 / L2 triggered mobility based on the terminal device identifier and / or the candidate cell identifier; determining the processing method of the configuration information of L1 / L2 triggered mobility, indicating the second information, and the second information is used to indicate the processing method of the configuration information of L1 / L2 triggered mobility.

[0021] In an optional embodiment of the second aspect, obtaining the configuration information of L1 / L2 triggered mobility includes: obtaining the configuration information of L1 / L2 triggered mobility from a source network device, where the source network device is a service network device that configures the configuration information of L1 / L2 triggered mobility for the terminal device.

[0022] In an optional embodiment of the second aspect, determining a processing method for the configuration information of L1 / L2 triggered mobility includes: obtaining resource usage of a second service cell and a neighboring cell of the second service cell, where the second service cell is a cell currently accessed by the terminal device; obtaining a measurement report carried by a wireless resource control recovery request message; and determining a processing method for the configuration information of L1 / L2 triggered mobility based on the resource usage and the measurement report.

[0023] In an optional embodiment of the second aspect, the processing method includes: retaining the configuration information of L1 / L2 triggered mobility, deleting the configuration information of L1 / L2 triggered mobility, updating the configuration information of L1 / L2 triggered mobility, or adding one of the configuration information of L1 / L2 triggered mobility.

[0024] In the third aspect, an embodiment of the present application proposes a wireless communication configuration method, including: obtaining indication information, the indication information including a terminal device identifier and / or a candidate cell identifier; retrieving the L1 / L2 triggered mobility configuration information corresponding to the terminal device identifier and / or the candidate cell identifier; obtaining valid information of the candidate cell configuration information in the L1 / L2 triggered mobility configuration information; updating the L1 / L2 triggered mobility configuration information according to the valid information to obtain the updated L1 / L2 triggered mobility configuration information; sending reply information, the reply information including: the L1 / L2 triggered mobility configuration information or the updated L1 / L2 triggered mobility configuration information.

[0025] In an optional embodiment of the third aspect, the indication information is carried in a terminal device context request message or other Xn interface messages.

[0026] In an optional embodiment of the third aspect, the reply information is carried in a terminal device context response message or other Xn interface message.

[0027] In an optional embodiment of the third aspect, obtaining valid information of the configuration information of the candidate cell in the configuration information of L1 / L2 triggered mobility includes: sending a first request message to other network devices corresponding to the candidate cell, the first request message is used to instruct other network devices to determine the valid information of the configuration information of the candidate cell; obtaining the valid information sent by other network devices.

[0028] In an optional embodiment of the third aspect, the valid information includes: at least one of the cell identifier of the candidate cell whose configuration information is valid in the configuration information of L1 / L2 triggered mobility, the cell identifier of the candidate cell whose configuration information is unavailable, and the cell identifier of the candidate cell whose configuration information needs to be updated.

[0029] In an optional embodiment of the third aspect, updating the configuration information of L1 / L2 triggered mobility according to the valid information to obtain the updated configuration information of L1 / L2 triggered mobility includes:

[0030] If the valid information indicates that the configuration information of the candidate cell is unavailable, the configuration information of the candidate cell in the configuration information of the L1 / L2 triggered mobility is deleted;

[0031] If the valid information indicates that the configuration information of the candidate cell is valid, the configuration information of the candidate cell in the configuration information of the L1 / L2 triggered mobility is retained;

[0032] If the valid information indicates that the configuration information of the candidate cell needs to be updated, the configuration information of the candidate cell in the configuration information of L1 / L2 triggered mobility is retained or deleted.

[0033] In an optional embodiment of the third aspect, it also includes: according to the second service cell and the neighboring area information of the second service cell, adding the configuration information of the candidate cell in the configuration information of L1 / L2 triggered mobility, and the second service cell is the cell currently accessed by the terminal device.

[0034] In a fourth aspect, an embodiment of the present application provides a terminal device, including:

[0035] An acquisition module, used for acquiring instruction information;

[0036] The saving module is used to save the configuration information of L1 / L2 triggered mobility when migrating to the radio resource control inactive state based on the indication information.

[0037] In an optional embodiment of the fourth aspect, the indication information is carried in a radio resource control release message.

[0038] In an optional embodiment of the fourth aspect, the wireless resource control release message carries at least one of a timer, a cell identifier of a valid cell, and a wireless notification area list of a valid area, the timer is used to indicate the configuration information of L1 / L2 triggered mobility, and the cell identifier of the valid cell and the wireless notification area list of the valid area are both used to indicate the applicable cell of the configuration information of L1 / L2 triggered mobility.

[0039] In an optional embodiment of the fourth aspect, the configuration information of L1 / L2 triggered mobility includes: configuration information for the first service cell, and configuration information of each candidate cell of the first service cell, where the first service cell is the service cell when the configuration information of L1 / L2 triggered mobility is stored.

[0040] In an optional embodiment of the fourth aspect, the configuration information of the candidate cell includes: L1 or L2 measurement information, channel resource information, user plane bearer information, control plane bearer information, and at least one of the uplink or downlink synchronization information obtained in advance.

[0041] In an optional embodiment of the fourth aspect, it further includes: a sending module, used to send first information to the network device, where the first information is used to indicate that the configuration information of L1 / L2 triggered mobility is available.

[0042] In an optional embodiment of the fourth aspect, the first information includes: a terminal device identifier and / or a candidate cell identifier, where the candidate cell identifier is a cell identifier of the candidate cell in the configuration information of the L1 / L2 triggered mobility.

[0043] In an optional embodiment of the fourth aspect, the first information is carried in a radio resource control recovery request message.

[0044] In an optional embodiment of the fourth aspect, the first service cell when saving the configuration information of L1 / L2 triggered mobility is the same as the second service cell when sending the first information; or, the first service cell when saving the configuration information of L1 / L2 triggered mobility is different from the second service cell when sending the first information.

[0045] In an optional embodiment of the fourth aspect, the second service cell is a candidate cell in the configuration information of L1 / L2 triggered mobility, and the sending module is specifically used to apply the configuration information of L1 / L2 triggered mobility under preset conditions to send the first information to the network device. The preset conditions include: the current time meets the time specified by the timer and / or the second service cell belongs to a valid cell.

[0046] In an optional embodiment of the fourth aspect, the acquisition module is also used to obtain second information, where the second information indicates a processing method for the configuration information of L1 / L2 triggered mobility; and also includes a processing module for performing corresponding processing on the configuration information of L1 / L2 triggered mobility according to the processing method.

[0047] In an optional embodiment of the fourth aspect, the processing method includes: retaining the configuration information of L1 / L2 triggered mobility, deleting the configuration information of LTM, updating the configuration information of L1 / L2 triggered mobility, or adding the configuration information of L1 / L2 triggered mobility.

[0048] In a fifth aspect, an embodiment of the present application provides a network device, including:

[0049] The acquisition module is configured to acquire first information, where the first information indicates that configuration information for triggering L1 / L2 mobility is available.

[0050] In an optional embodiment of the fifth aspect, the first information is carried in a radio resource control recovery request message.

[0051] In an optional embodiment of the fifth aspect, the first information includes: a terminal device identifier and / or a candidate cell identifier, where the candidate cell identifier is a cell identifier of the candidate cell in the configuration information of the radio resource control.

[0052] In an optional embodiment of the fifth aspect, the acquisition module is also used to obtain the configuration information of L1 / L2 triggered mobility based on the terminal device identifier and / or the candidate cell identifier; and also includes: a determination module, used to determine the processing method of the configuration information of L1 / L2 triggered mobility, indicating the second information, and the second information is used to indicate the processing method of the configuration information of L1 / L2 triggered mobility.

[0053] In an optional embodiment of the fifth aspect, the acquisition module is specifically used to obtain L1 / L2 triggered mobility configuration information from a source network device, where the source network device is a service network device that configures L1 / L2 triggered mobility configuration information for the terminal device.

[0054] In an optional embodiment of the fifth aspect, the determination module is specifically used to obtain resource usage of the second service cell and the neighboring cells of the second service cell, where the second service cell is the cell currently accessed by the terminal device; obtain the measurement report carried by the wireless resource control recovery request message; and determine the processing method of the configuration information of the L1 / L2 triggered mobility based on the resource usage and the measurement report.

[0055] In an optional embodiment of the fifth aspect, the processing method includes: retaining the configuration information of L1 / L2 triggered mobility, deleting the configuration information of L1 / L2 triggered mobility, updating the configuration information of L1 / L2 triggered mobility, or adding one of the configuration information of L1 / L2 triggered mobility.

[0056] In a sixth aspect, an embodiment of the present application provides a network device, including:

[0057] A first acquisition module is used to acquire indication information, where the indication information includes a terminal device identifier and / or a candidate cell identifier;

[0058] A retrieval module, configured to retrieve L1 / L2 triggered mobility configuration information corresponding to a terminal device identifier and / or a candidate cell identifier;

[0059] A second acquisition module is used to obtain valid information of the configuration information of the candidate cell in the configuration information of the L1 / L2 triggered mobility;

[0060] An updating module, configured to update the configuration information of the L1 / L2 triggered mobility according to the valid information, and obtain the updated configuration information of the L1 / L2 triggered mobility;

[0061] The sending module is used to send reply information, where the reply information includes: configuration information of L1 / L2 triggered mobility or updated configuration information of L1 / L2 triggered mobility.

[0062] In an optional embodiment of the sixth aspect, the indication information is carried in a terminal device context request message or other Xn interface messages.

[0063] In an optional embodiment of the sixth aspect, the reply information is carried in a terminal device context response message or other Xn interface message.

[0064] In an optional embodiment of the sixth aspect, the second acquisition module is specifically used to send a first request message to other network devices corresponding to the candidate cell, and the first request message is used to instruct other network devices to determine valid information of the configuration information of the candidate cell; and obtain valid information sent by other network devices.

[0065] In an optional embodiment of the sixth aspect, the valid information includes: at least one of the cell identifier of the candidate cell whose configuration information is valid in the configuration information of L1 / L2 triggered mobility, the cell identifier of the candidate cell whose configuration information is unavailable, and the cell identifier of the candidate cell whose configuration information needs to be updated.

[0066] In an optional embodiment of the sixth aspect, the update module is specifically configured to:

[0067] If the valid information indicates that the configuration information of the candidate cell is unavailable, the configuration information of the candidate cell in the configuration information of the L1 / L2 triggered mobility is deleted;

[0068] If the valid information indicates that the configuration information of the candidate cell is valid, the configuration information of the candidate cell in the configuration information of the L1 / L2 triggered mobility is retained;

[0069] If the valid information indicates that the configuration information of the candidate cell needs to be updated, the configuration information of the candidate cell in the configuration information of L1 / L2 triggered mobility is retained or deleted.

[0070] In an optional embodiment of the sixth aspect, the update module is also used to add configuration information of the candidate cell in the configuration information of L1 / L2 triggered mobility based on the second service cell and the neighboring area information of the second service cell, where the second service cell is the cell currently accessed by the terminal device.

[0071] In the seventh aspect, an embodiment of the present application provides an electronic device, comprising: a processor and a memory; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory, so that the network device executes the method of the first aspect, the method of the second aspect, or the method of the third aspect.

[0072] In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the method of the first aspect, the method of the second aspect, or the method of the third aspect.

[0073] In a ninth aspect, an embodiment of the present application provides a computer program product, which includes a computer program. When the computer program is run, the computer executes the method of the first aspect, the method of the second aspect, or the method of the third aspect.

[0074] The present application provides a method, device and storage medium for wireless communication configuration. The method includes: obtaining indication information; and saving the configuration information of L1 / L2 triggered mobility when migrating to the radio resource control inactive state based on the indication information. The present application saves the configuration information of LTM when migrating to RRC_INACTIVE instead of deleting the configuration information of LTM. This allows the terminal device to instruct the network device and continue to use the configuration information of LTM when accessing the candidate cell corresponding to the configuration information of LTM next time, thereby saving downlink signaling overhead, reducing the impact of state migration on data transmission and switching interruptions, and improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] FIG1 is a diagram of a communication system architecture provided by an embodiment of the present application;

[0076] FIG2 is a flowchart of the steps of the cell switching process provided in an embodiment of the present application;

[0077] FIG3 is a second flowchart of the cell switching process according to an embodiment of the present application;

[0078] FIG4 is a flowchart of the third step of the cell switching process provided in an embodiment of the present application;

[0079] FIG5 is a flowchart of the steps of the wireless communication configuration method provided in an embodiment of the present application;

[0080] FIG6 is a schematic diagram of a network device sending an RRC release message to a terminal device according to an embodiment of the present application;

[0081] FIG7 is a first schematic diagram of a wireless communication configuration method provided in an embodiment of the present application;

[0082] FIG8 is a second schematic diagram of a wireless communication configuration method provided in an embodiment of the present application;

[0083] FIG9 is a second flowchart of the steps of the wireless communication configuration method provided in an embodiment of the present application;

[0084] FIG10 is a third schematic diagram of a wireless communication configuration method provided in an embodiment of the present application;

[0085] FIG11 is a fourth schematic diagram of a wireless communication configuration method provided in an embodiment of the present application;

[0086] FIG12 is a fifth schematic diagram of a wireless communication configuration method provided in an embodiment of the present application;

[0087] FIG13 is a sixth schematic diagram of a wireless communication configuration method provided in an embodiment of the present application;

[0088] FIG14 is a flowchart of the third step of the wireless communication configuration method provided in an embodiment of the present application;

[0089] FIG15 is a structural block diagram of a terminal device provided in an embodiment of the present application;

[0090] FIG16 is a structural block diagram 1 of a network device provided in an embodiment of the present application;

[0091] FIG17 is a second structural block diagram of a network device provided in an embodiment of the present application;

[0092] FIG18 is a schematic diagram of the hardware structure of the electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0093] To facilitate a clear description of the technical solutions of the embodiments of this application, the words "exemplary" or "for example" are used in the embodiments of this application to indicate examples, illustrations, or explanations. Any embodiment or design described in this application as "exemplary" or "for example" should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0094] In the embodiments of the present application, "at least one" refers to one or more, and "more" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0095] It should be noted that the phrase "when (at) ..." or "when (in) ..." in the embodiments of the present application can refer to the instant when a certain situation occurs or a period of time after the situation occurs, and the embodiments of the present application do not specifically limit this. In addition, the display interface provided in the embodiments of the present application is only an example, and the display interface may also include more or less content.

[0096] The following first briefly describes the terms and nouns involved in the embodiments of this application.

[0097] In order to better understand the information indication method provided in the embodiment of the present application, the communication system architecture of the embodiment of the present application is first described below.

[0098] For example, Figure 1 is a diagram of a communication system architecture provided by an embodiment of the present application. As shown in Figure 1 , the communication system 100 includes a terminal device 101 and a network device 102 , and the terminal device 101 communicates with the network device 102 wirelessly.

[0099] The terminal device involved in the embodiments of the present application can also be called a terminal, which can be a device with wireless transceiver function, which can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (for example, on airplanes, balloons and satellites, etc.). The terminal device can be user equipment (UE), wherein the UE includes a handheld device, a vehicle-mounted device, a wearable device or a computing device with wireless communication function. Exemplarily, the UE can be a mobile phone, a tablet computer or a computer with wireless transceiver function. The terminal device can also be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a wireless terminal in smart grid, a wireless terminal in smart city, a wireless terminal in smart home, etc. In the embodiments of the present application, the device for realizing the function of the terminal can be a terminal; it can also be a device that can support the terminal to realize the function, such as a chip system, which can be installed in the terminal.

[0100] The network device 102 involved in the embodiment of the present application includes an access network device 1021 and a core network device 1022.

[0101] Access network (RAN) equipment is the intermediate device that connects terminals to core network equipment wirelessly. It is primarily responsible for radio resource management, quality of service (QoS) management, data compression and encryption, etc. on the air interface side. Examples include network equipment NodeB, evolved network equipment eNodeB, network equipment in 5G mobile communication systems or next-generation radio (NR) communication systems, and network equipment in future mobile communication systems.

[0102] Core network (CN) equipment includes user plane function (UPF) network elements, access and mobility management function (AMF) network elements, session management function (SMF) network elements, policy control function (PCF) network elements, etc. Among them, the UPF network element is mainly responsible for the transmission of user data, while the other network elements can be called control plane function network elements, which are mainly responsible for authentication, authorization, registration management, session management, mobility management, and policy control to ensure the reliable and stable transmission of user data.

[0103] In an embodiment of the present application, the device for implementing the function of the network device may be a network device, or a device that can support the network device to implement the function, such as a chip system, which may be installed in the network device.

[0104] The technical solutions provided in the embodiments of the present application can be applied to the Long Term Evolution (LTE) architecture, and can also be applied to the Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (UTRAN) architecture, or the Global System for Mobile Communication (GSM) / Enhanced Data Rate for GSM Evolution (EDGE) system Radio Access Network (GSM EDGE Radio Access Network, GERAN) architecture. In addition, the technical solutions provided in the embodiments of the present application can also be applied to any other wireless communication system with similar structure and function, such as the Public Land Mobile Network (PLMN) system, the 5G communication system or the communication system after 5G, etc., and the embodiments of the present application do not impose any restrictions on this.

[0105] Wireless communication between communication devices may include: wireless communication between network devices and terminals, wireless communication between network devices and network devices, and wireless communication between terminals. In the embodiments of the present application, the term "wireless communication" may also be referred to as "communication", and the term "communication" may also be described as "data transmission", "information transmission" or "transmission". Those skilled in the art may apply the technical solutions provided in the embodiments of the present application to wireless communication between network devices and terminals, such as wireless communication between access network devices and terminals, and wireless communication between core network devices and terminals.

[0106] Among them, for a terminal device connected to a network device, in RRC_IDLE (Radio Resource Control Idle State), if the quality of the radio link of the current serving cell is poor, or there is a neighboring serving cell with better service quality, or the currently connected network device needs to be load balanced, the terminal device will trigger a handover and perform a serving cell switch. The entire handover process includes three stages: handover preparation, handover execution, and handover completion.

[0107] Exemplarily, a specific handover process of a serving cell, with reference to FIG2 , includes the following steps:

[0108] S200. Mobility control information provided by AMF.

[0109] Before S200, the terminal device, the source network device and the AMF (Access and Mobility Management Function) are all configured with user data.

[0110] Specifically, S200 indicates that the AMF provides mobility control information to the source network device and the target network device.

[0111] S201. Measurement control and reporting.

[0112] Specifically, the terminal device sends measurement control and reports to the source network device.

[0113] S202: Handover decision.

[0114] The source network device determines whether to switch the serving cell based on the measurement control and report, and determines the target network device of the target cell if the serving cell needs to be switched.

[0115] S203: Handover request.

[0116] Among them, after determining the service cell of the switching terminal device, the source network device sends a switching request to the target network device.

[0117] S204: Access control.

[0118] The target network device determines whether to allow the terminal device to switch the service cell.

[0119] S205: Confirm the switching request.

[0120] When the target network device permits the terminal device to switch the serving cell, a switching request confirmation is sent to the source network device to indicate that the source network device agrees to the switching.

[0121] Among them, S200 to S205 are the handover preparation stage, and after the handover preparation is completed, the subsequent handover execution process is executed.

[0122] S206: Initiate RAN handover.

[0123] The terminal device and the source network device both initiate a RAN handover, and the source network device then transfers the cache data and new data from the source UPF (User Plane Function), and the terminal device detaches and synchronizes from the old serving cell to the new serving cell.

[0124] S207a. Advance state migration.

[0125] S207b. SN state transition.

[0126] Then the user data in the source UPF is transferred to the target network device through the source network device. Further, the target network device buffers the user data from the source network device.

[0127] S208: RAN switching is completed.

[0128] Among them, S208 includes: S208a, switching success and S208b, SN state transfer.

[0129] In the embodiment of the present application, S206 to S208 are the switching execution process.

[0130] S209: Path switching request.

[0131] The target network device sends a path switching request to the AMF.

[0132] S210: Path switching in source UPF.

[0133] Among them, AMF performs path switching in the source UPF after receiving the path switching request.

[0134] After the path switching is completed, the source UPF sends an end mark to the target network device through the source network device. In addition, the target network device is configured with user data.

[0135] S211: Path switching request confirmation.

[0136] After the path switching is completed, the AMF sends a path switching request confirmation to the target network device.

[0137] S212: UE context release.

[0138] After implementing the path switch, the target network device instructs the source network device to release the UE context.

[0139] It can be seen that S209 to S212 is the process of handover completion.

[0140] In an embodiment of the present application, Figure 2 shows the switching of the service cell of a terminal device across network devices within the AMF. After the process shown in Figure 2, the terminal device can realize the switching of the service cell.

[0141] Furthermore, in order to reduce the delay of terminal equipment switching service cells, R18 introduces L1 / L2 Triggered Mobility (LTM), that is, switching controlled by L1 / L2 signaling. When the terminal equipment is in RRC_CONNECTED, the configuration information of the candidate cell is pre-configured by the current service cell (similar to CHO (Conditional Handover, conditional switching) and / or CPAC (Conditional PSCell Addition / Change, conditional primary and secondary cell addition or update) pre-configuration), and the configuration information of LTM. The configuration information of LTM includes the configuration of L1 or L2 measurement information of the terminal equipment and / or the relevant configuration parameters for obtaining uplink or downlink synchronization information in advance. The terminal device obtains the uplink and downlink synchronization information for the configured candidate cell in advance based on the configuration information of LTM, and reports the L1 or L2 measurement information in a periodic and semi-static manner. The network device finally makes a switching decision based on the L1 or L2 measurement information reported by the terminal device, and sends a cell switch command through a MAC CE (Multiple Access Channel Control Element) message. The terminal device selects the access method (RACH or RACH-less) in the new cell based on the current UL (Up-Link) synchronization status. After the service cell changes, the terminal device saves the LTM configuration information; after entering the new service cell, it can add new neighboring cell configurations as needed.

[0142] 3, a cell handover process under the LTM framework in the R18 protocol is shown, which specifically includes four phases: LTM preparation phase, advance synchronization phase, LTM cell handover execution phase, and LTM cell handover completion phase. Specifically, the following steps are included:

[0143] S301. Measurement report.

[0144] Among them, when the terminal device is in RRC_CONNECTED, the terminal device sends a measurement report to the network device.

[0145] S302: RRC reconfiguration.

[0146] The network device prepares the candidate according to the measurement report, that is, generates the configuration information of the LTM, saves the configuration information of the LTM on the network device side, and then sends the LTM RRC reconfiguration to the terminal device, and the RRC reconfiguration carries the configuration information of the LTM.

[0147] S303: RRC reconfiguration is completed.

[0148] After the network device configures the configuration information of the LTM, an RRC reconfiguration completion message is sent to the network device.

[0149] In the embodiment of the present application, S301 to S303 are the LTM preparation stage.

[0150] S304a: synchronize with the DL of the candidate cell.

[0151] The terminal device and the network device perform DL (Down Link) synchronization of the candidate cells.

[0152] S304b: synchronize with the UL of the candidate cell.

[0153] The terminal device and the network device perform DL (Down Link) synchronization of the candidate cells.

[0154] In the embodiment of the present application, S304a to S304b is an early synchronization stage.

[0155] S305, L1 measurement information.

[0156] The terminal device sends L1 measurement information to the network device.

[0157] S306: Cell switching command.

[0158] The network device makes an LTM decision after receiving the L1 measurement information, and then sends a cell switching command to the terminal device to instruct the terminal device to perform cell switching.

[0159] Furthermore, after receiving the cell switching command, the terminal device switches from the source service cell to the target service cell.

[0160] S307: Random access channel process.

[0161] A RACH (Random Access Channel) process is performed between the terminal device and the network device.

[0162] In the embodiment of the present application, S305 to S307 are the LTM cell handover execution phase.

[0163] S308: LTM cell switching is completed.

[0164] Among them, the process of completing LTM cell switching is performed between the terminal device and the network device.

[0165] In the embodiment of the present application, S308 is the LTM cell handover completion stage.

[0166] Specifically, Figure 4 shows a complete flow chart of LTM-based cell handover. In Figure 4, the S-gNB-DU (Source-gNB-Distributed Unit), C-gNB-DU (Candidate-gNB-Distributed Unit), and gNB-CU (gNB-Central Unit) are shown. Figure 4 specifically includes the following steps:

[0167] S401, L3 measurement control and reporting.

[0168] In the current state, user data is being transmitted between the UE and the S-gNB-DU. User data is being transmitted between the S-gNB-DU and the gNB-CU. L3 (network layer) measurement control and reporting are being transmitted between the UE, S-gNB-DU, C-gNB-DU, and gNB-CU.

[0169] S402: LTM configuration decision.

[0170] The gNB-CU makes LTM configuration decisions.

[0171] S403: UE context setting request.

[0172] The gNB-CU sends a UE context setup request to the C-gNB-DU.

[0173] S404: UE context setting response.

[0174] The C-gNB-DU sends a UE Context Setup Response to the gNB-CU.

[0175] S405: UE context modification request.

[0176] The gNB-CU sends a UE context modification request to the S-gNB-DU.

[0177] S406: UE context modification response.

[0178] The S-gNB-DU sends a UE Context Modification Response to the gNB-CU.

[0179] S407: UE context modification request.

[0180] The gNB-CU sends a UE context modification request to the C-gNB-DU.

[0181] S408: UE context modification response.

[0182] The C-gNB-DU sends a UE Context Modification Response to the gNB-CU.

[0183] S409: DL RRC message transmission.

[0184] The gNB-CU sends a DL RRC message to the S-gNB-DU. This DL RRC message carries the RRC reconfiguration.

[0185] S410: RRC reconfiguration.

[0186] The S-gNB-DU sends an RRC reconfiguration message to the terminal device. The RRC reconfiguration message carries the LTM configuration information.

[0187] S411. RRC reconfiguration is completed.

[0188] Among them, the terminal device sends RRC reconfiguration completion to the S-gNB-DU.

[0189] S412: UL RRC message transmission.

[0190] The S-gNB-DU sends an UL RRC message to the gNB-CU. This UL RRC message carries the RRC Reconfiguration Complete message.

[0191] S413, obtain TA in advance.

[0192] Among them, the network device and C-gNB-DU obtain TA (Tracking Area) in advance.

[0193] S414, TA information notification.

[0194] The C-gNB-DU sends a TA information notification to the S-gNB-DU through the gNB-CU. The TA information notification carries TA information.

[0195] S415, lower layer measurement report.

[0196] The network device sends a lower layer measurement report to the S-gNB-DU.

[0197] S416: LTM cell handover decision.

[0198] Among them, the S-gNB-DU makes LTM cell switching decisions based on the lower layer measurement report.

[0199] S417, LTM command.

[0200] Among them, the S-gNB-DU sends an LTM command to the terminal device.

[0201] S418, LTM cell change notification.

[0202] The S-gNB-DU sends an LTM cell change notification to the gNB-CU. The LTM cell change notification carries the target cell ID and selected beam information.

[0203] S419, LTM cell change notification.

[0204] The gNB-CU sends an LTM cell change notification to the C-gNB-DU. The LTM cell change notification carries the target cell ID and the selected beam information.

[0205] S420. The gNB / gNB DU detects UE access.

[0206] After the S-gNB-DU sends the downlink data transmission status to the gNB-CU, the network device, S-gNB-DU, and C-gNB-DU negotiate gNB / gNB DU detection for terminal device access. S420 is a step to be determined.

[0207] S421. Access successful.

[0208] The C-gNB-DU sends an access success message to the gNB-CU.

[0209] S422: UE context release command.

[0210] The gNB-CU sends a UE context release command to the S-gNB-DU.

[0211] S423: UE context release is completed.

[0212] The S-gNB-DU sends a UE context release complete message to the gNB-CU.

[0213] Furthermore, after the terminal device completes cell handover, the C-gNB-DU provides services to the terminal device, and user data is transmitted between the terminal device and the C-gNB-DU. User data is also transmitted between the C-gNB-DU and the gNB-CU.

[0214] One clause in the prior art stipulates that when the UE transitions to the RRC_INACTIVE state, it releases the corresponding LTM configuration information. In addition, another clause stipulates that for the cell group that triggers the LTM configuration information release process, the UE shall delete all entries in VarLTM-Config (LTM configuration variable), delete all entries in VarLTM ServingCellNoResetID (LTM serving cell no reset ID variable), delete all entries in VarLTM-ServingCellUE-MeasuredTA-ID (LTM serving cell UE measurement TA ID), release the LTM configuration information, and release all entries in LTMCSIReportConfigToAddModList of all serving cells from the current UE configuration. It can be understood that in the prior art, the LTM configuration information will be released when the terminal device migrates to RRC_INACTIVE. This will cause the LTM configuration information to be re-sent to the terminal device when the terminal device migrates from RRC_INACTIVE to RRC_CONNECTED, or when the terminal device switches cells. This will result in a large downlink signaling overhead, and the terminal will need to reconfigure the LTM configuration information, resulting in an interruption effect of state migration on data transmission and switching.

[0215] In this regard, an embodiment of the present application proposes a wireless communication configuration method, the main inventive idea of ​​which is as follows: obtaining indication information, and based on the indication information, saving the configuration information of L1 / L2 triggered mobility when migrating to RRC_INACTIVE, it can be achieved that if the terminal device is still accessing the service cell or the service cell corresponding to the LTM configuration information next time, it can instruct the network device and continue to use the LTM configuration information, thereby saving downlink signaling overhead, reducing the interruption impact of state migration on data transmission and switching, and improving user experience.

[0216] The technical solutions shown in this application are described in detail below through specific embodiments. It should be noted that the following embodiments can exist independently or in combination with each other. For the same or similar content, such as the explanation of terms or nouns, and the explanation of steps, etc., different embodiments can refer to each other and will not be repeated.

[0217] FIG5 is a schematic diagram of a method for configuring wireless communication provided in an embodiment of the present application. As shown in FIG5 , the method for configuring wireless communication provided in this embodiment is applied to a terminal device, and the method for configuring wireless communication includes:

[0218] S501: Obtain instruction information.

[0219] The indication information is carried in a radio resource control release message (RRC release message). Referring to Figure 6, the source network device sends an RRC release message to the terminal device. The RRC release message carries an indication message, which is used to instruct the terminal device to migrate from RRC_CONNECTED to RRC_INACTIVE and save the LTM configuration information previously sent by the source network device.

[0220] Furthermore, the radio resource control release message carries at least one of a timer, a cell identifier of a valid cell, and a radio notification area list of a valid area. The timer is used to indicate the valid time of the LTM configuration information, and the cell identifier of the valid cell and the radio notification area (RNA) list of the valid area are both used to indicate the applicable cells of the LTM configuration information.

[0221] Specifically, the timer is used to indicate the validity period of the saved LTM configuration information. For example, if the timer is 1 hour, the saved LTM configuration information is valid within 1 hour. After the time limit of the timer is exceeded, the terminal device clears the saved LTM configuration information. In addition, the cell identifier of the valid cell is used to indicate the applicable cell for the saved LTM configuration information. For example, if the cell identifier is cell 1, cell 3, and cell 5, the terminal device can only use the saved LTM configuration information when accessing cell 1, cell 3, and cell 5. The saved LTM configuration information cannot be used in cells other than cell 1, cell 3, and cell 5. When the terminal device leaves these valid cells, the saved LTM configuration information is also deleted. The wireless notification area list includes multiple RNAs. The LTM configuration information can only be applied when the access cell is under these multiple RNAs.

[0222] Among them, if the wireless resource control release message carries a timer, the terminal device starts the timer when receiving the wireless resource control release message.

[0223] Furthermore, before the timer expires, if the terminal device accesses the first service cell, or the cell accessed by the terminal device is a candidate cell in the configuration information of the LTM, the terminal device can perform relevant configuration according to the configuration information of the LTM.

[0224] S502: When migrating to the radio resource control inactive state based on the indication information, save the configuration information of L1 / L2 triggered mobility.

[0225] It can be understood that when the terminal device migrates to the second service cell, the second service cell is a candidate cell in the configuration information of the LTM, and the second service cell is a valid cell and / or in the valid RNA area, and when the time specified by the timer is met, the terminal device can use the LTM configuration information in advance to perform corresponding measurements, and notify the network device that it has saved the LTM configuration information.

[0226] In an embodiment of the present application, the source network device sends an RRC release message to the terminal device, which instructs the terminal device to migrate to the RRC_INACTIVE state and save the configuration information of the LTM in the VarLTM-Config variable.

[0227] The configuration information of the LTM includes: configuration information for the first serving cell and configuration information of each candidate cell of the first serving cell. The first serving cell is the serving cell when the configuration information of the LTM is saved.

[0228] It can be understood that each candidate cell is a neighboring cell of the first serving cell and is a cell to which the terminal device may switch. Furthermore, the configuration information of the candidate cell includes at least one of: L1 or L2 measurement information, channel resource information, user plane bearer information, control plane bearer information, and advance acquisition of uplink or downlink synchronization information.

[0229] Specifically, the L1 or L2 measurement information includes whether the target cell measurement for the UE to perform L1 measurement is CSI-RS (Channel State Information-Reference Signal) or SSB (Synchronization Signal Block) pilot, pilot time-frequency resources, TCI status, measurement reporting period, CSI reporting resources, number of reported cells and number of pilots; channel resource information includes one or more of the PDCCH (Physical Downlink Control Channel, physical downlink control channel) / PUCCH (Physical Uplink Control Channel, physical uplink control channel) / PDSCH (Physical Downlink Shared Channel, physical downlink shared channel) / PUSCH (Physical Uplink Shared Channel, physical uplink shared channel) physical channel time-frequency resources and parameter configurations for uplink and downlink data transmission after future switching is completed; the user plane bearer information includes each layer protocol stack corresponding to the DRB (Data Radio Bearer, data radio bearer) {PDCP (Packet Data Convergence The control plane bearer information includes the corresponding SRB (Signaling Radio Bearer) parameters, and the corresponding layer protocol stack (PDCP / RLC / MAC) parameter configurations, and one or more of the logical channel and transport channel parameter configurations; the advance acquisition of uplink or downlink synchronization information includes the frequency information of the target cell to be synchronized, RACH (Random Access Channel) access channel configuration information, BWP (Bandwidth Part) parameters, SSB and PRACH (Physical Random Access Channel) mapping, and TA (Tracking Area) offset.

[0230] In an embodiment of the present application, the configuration information of the source network device for LTM is completed through "LTM-Config" IE (LTM-configuration information element) and "LTM CSI (Channel State Information, channel state information) report config" (LTM channel state information configuration report). The configuration information of LTM includes: the configuration information of the first serving cell (LTM-ReferenceConfiguration-r18) and the configuration information of the candidate cell (LTM-Candidate-r18). Furthermore, the configuration information of the candidate cell includes: RS (Reference Signal) configuration information (LTM-SSB-Config-r18), TCI (Transmission Control Interface) status configuration information and Early RACH (Early Random Access Channel) configuration information (LTM-EarlyUL-Sync Config).

[0231] Furthermore, the network device can add, modify and release the configuration information of LTM by configuring the parameters LTM-CandidateToAddModList (adding a modification list of LTM candidate cells) and LTM-CandidateToReleaseList (LTM candidate cell release list).

[0232] Specifically, the configuration information of the candidate cell includes: configuration information for the UE to perform L1 or L2 measurement reporting, and configuration information for the UE to perform early uplink synchronization. The configuration information for the UE to perform L1 or L2 measurement reporting includes: reporting period, CSI (Channel State Information) reporting resources, number of reported cells, and number of pilots.

[0233] In addition, the configuration information of the candidate cell also includes: at least one of: channel resource information, user plane bearer information, control plane bearer information, and advance acquisition of downlink synchronization information.

[0234] Furthermore, the Early UL-SyncConfig configuration information is used to configure random access resources for the early UL synchronization process. In addition, the LTM configuration information also includes: candidate cell identifiers, SSB (Synchronization Signal / PBCH Block) location, physical cell identifier, TCI (Transmission Control Interface) status, and UE (terminal equipment) measurement configuration.

[0235] In an embodiment of the present application, the method further includes: sending first information to the network device, where the first information is used to indicate that the configuration information of the LTM is available.

[0236] Specifically, the first information is used to inform the connected network device (which may be a source network device or a target network device different from the source network device) that the terminal device stores the configuration information of the LTM.

[0237] The first information includes: a terminal device identifier and / or a candidate cell identifier, where the candidate cell identifier is a cell identifier of the candidate cell in the configuration information of the LTM.

[0238] Furthermore, the first information is carried in the radio resource control recovery request message. Referring to Figures 7 and 8, the RRC recovery request message carries the first information.

[0239] If the terminal device needs to update RNA, it sends an RNAU message (RAN-based Notification Area Update) to the network device, and the RNAU message carries first information for indicating to the network device that it stores the configuration information of the LTM.

[0240] In an embodiment of the present application, the first service cell when saving the configuration information of the LTM is the same as the second service cell when sending the first information; or, the first service cell when saving the configuration information of the LTM is different from the second service cell when sending the first information.

[0241] Furthermore, the second service cell is a candidate cell in the configuration information of L1 / L2 triggered mobility, and sends the first information to the network device, including: under preset conditions, applying the configuration information of L1 / L2 triggered mobility, and sending the first information to the network device. The preset conditions include: the current time meets the time specified by the timer and / or the second service cell belongs to a valid cell.

[0242] It can be understood that within the effective time specified by the timer, and under the condition that the second service cell meets the cell identifier of the valid cell and the Radio Notification Area (RNA) list of the valid area, the terminal device can directly apply the saved LTM configuration information and send the first information to the network device to reduce the switching delay.

[0243] In addition, the method further includes: obtaining second information, where the second information indicates a processing method for the configuration information of the LTM; and performing corresponding processing on the configuration information of the LTM according to the processing method.

[0244] The second information bearer may be in the RRC recovery message.

[0245] In Example 1, referring to FIG7 , the terminal device sends an RRC recovery request message to the source network device in the second serving cell, wherein the RRC recovery request message carries the first information. The second serving cell and the first serving cell are the same cell or different cells, and the second serving cell is the cell served by the source network device. FIG7 specifically includes the following steps:

[0246] S701, RRC release message.

[0247] Among them, the terminal device executes S701 to S703 when in the first service cell.

[0248] In an embodiment of the present application, when the terminal device is in RRC_CONNECTED, it receives an RRC release message sent by the source network device. The RRC release message indicates that the terminal device has migrated to the RRC_INACTIVE state and saved the LTM configuration information in the VarLTM-Config variable.

[0249] S702. Migrate to RRC_INACTIVE.

[0250] Among them, the terminal device migrates from RRC_CONNECTED to RRC_INACTIVE according to the instructions of the RRC release message.

[0251] S703: Save the configuration information of the LTM.

[0252] Among them, the terminal device saves the configuration information of LTM according to the instruction of the RRC release message.

[0253] S704: RRC recovery request message.

[0254] In an optional embodiment, the terminal device accesses the current cell (the second service cell and the first service cell are the same cell) or accesses other cells under the same source network device (the second service cell and the first service cell are not the same cell), and the terminal device sends an RRC recovery request message to the source network device. The RRC recovery request message carries first information, and the first information is used to indicate that the configuration information of the LTM is available, that is, the terminal device saves the configuration information of the LTM. The first information includes: a terminal device identifier and / or a candidate cell identifier, and the candidate cell identifier is a cell identifier of the candidate cell in the configuration information of the LTM.

[0255] S705, RRC recovery message.

[0256] The terminal device receives an RRC recovery message sent by the source network device, and the RRC recovery message carries second information. Further, the second information indicates a processing method for the LTM configuration information; the terminal device can perform corresponding processing on the LTM configuration information according to the processing method.

[0257] In FIG7 , the second serving cell and the first serving cell correspond to the same network device, ie, the source network device.

[0258] In an optional embodiment, referring to FIG8 , the terminal device sends an RRC recovery request message to the target network device in a second serving cell, where the second serving cell is a cell served by the target network device, wherein the RRC recovery request message carries the first information. The second serving cell and the first serving cell are different cells, and the target network device is different from the source network device. FIG8 specifically includes the following steps:

[0259] S801, RRC release message.

[0260] S802. Migrate to RRC_INACTIVE.

[0261] S803: Save the configuration information of the LTM.

[0262] Among them, S801 to S803 refer to S701 to S703 and are not repeated here.

[0263] S804: RRC recovery request message.

[0264] S805, RRC recovery message.

[0265] Among them, S804 and S805 are the interactions between the terminal device and the target network device. Other contents refer to S704 to S705 and are not repeated here.

[0266] Furthermore, in an embodiment of the present application, the processing method includes: retaining the configuration information of the LTM, deleting the configuration information of the LTM, updating the configuration information of the LTM, or adding the configuration information of the LTM.

[0267] Specifically, retaining the configuration information of LTM means that if the configuration information of LTM is available, the terminal device can continue to save the configuration information of LTM. Deleting the configuration information of LTM means that if the configuration information of LTM is unavailable, the saved configuration information of LTM is deleted and the configuration information of LTM is reconfigured. Updating the configuration information of LTM means that if part of the configuration information of LTM saved in the terminal device is available and part is unavailable, the available part of the configuration information of LTM is retained and the unavailable part of the configuration information of LTM is replaced. Adding the configuration information of LTM means adding some configuration information of candidate cells to the original configuration information of LTM.

[0268] In an embodiment of the present application, the terminal device can perform measurements in advance based on the configuration information of the LTM to obtain a measurement report. When the state of the terminal device migrates (for example, from RRC_INACTIVE to RRC_CONNECTED), the measurement report can be sent to the network device, so that the mobility performance of the terminal device after the state migration can be quickly guaranteed, thereby reducing the greater interruption delay caused by the terminal device state migration.

[0269] This application saves the LTM configuration information instead of deleting the LTM configuration information when migrating to RRC_INACTIVE. This allows the terminal device to instruct the network device to continue using the LTM configuration information when accessing the candidate cell corresponding to the LTM configuration information next time, thereby saving downlink signaling overhead, reducing the impact of state migration on data transmission and switching interruptions, and improving user experience.

[0270] 9 , a method for configuring wireless communication is shown, which is applied to a network device and includes the following steps:

[0271] S901: Obtain first information, where the first information indicates that LTM configuration information is available.

[0272] The first information is carried in the RRC recovery request message.

[0273] Furthermore, the first information includes: a terminal device identifier and / or a candidate cell identifier, where the candidate cell identifier is a cell identifier of the candidate cell in the configuration information of the LTM.

[0274] It also includes: obtaining LTM configuration information according to the terminal device identifier and / or the candidate cell identifier; determining the processing method of the LTM configuration information, indicating the second information, and the second information is used to indicate the processing method of the LTM configuration information.

[0275] In an embodiment of the present application, obtaining the configuration information of the LTM includes: obtaining the configuration information of the LTM from a source network device, where the source network device is the network device from which the terminal device obtains the configuration information of the LTM.

[0276] In an optional embodiment, determining the processing method of the LTM configuration information includes: obtaining the resource usage of the second service cell and the neighboring cells of the second service cell, the second service cell is the cell currently accessed by the terminal device; obtaining the measurement report carried by the wireless resource control recovery request message; determining the processing method of the LTM configuration information based on the resource usage and the measurement report.

[0277] Furthermore, the processing method includes: retaining the configuration information of the LTM, deleting the configuration information of the LTM, updating the configuration information of the LTM, or adding the configuration information of the LTM.

[0278] Exemplarily, when the execution subject of S901 is the source network device, referring to FIG10 , in FIG10 , the terminal device accesses the first serving cell when saving the configuration information of the LTM (that is, the second serving cell and the first serving cell are the same cell), and the interaction process includes the following steps:

[0279] S1001. RRC recovery request message.

[0280] The source network device receives an RRC recovery request message from the terminal device, where the RRC recovery request message carries first information, and the first information includes: a terminal device identifier and / or a candidate cell identifier.

[0281] S1002. Obtain LTM configuration information.

[0282] The source network device obtains the corresponding LTM configuration information locally (source network device) based on the terminal device identifier and / or the candidate cell identifier.

[0283] S1003: First request message.

[0284] The other network device is the network device corresponding to the candidate cell in the LTM configuration information. The source network device sends a first request message to the other network device. This means that the candidate cell is managed by the other network device. The other network device can determine whether to reserve the corresponding pre-configured resource information or update the configured resources based on the resource usage of the candidate cell.

[0285] The first request message is used to request other network devices to determine valid information of the candidate cell, where the valid information includes at least one of the cell identifiers of the candidate cell whose configuration information is valid in the LTM configuration information, the cell identifiers of the candidate cell whose configuration information is unavailable, and the cell identifiers of the candidate cell whose configuration information needs to be updated.

[0286] S1004. First response message.

[0287] The source network device receives a first response message sent by other network devices, where the first response message carries valid information.

[0288] S1005. Determine the processing method.

[0289] First, the source network device updates the LTM configuration information based on the valid information to obtain updated LTM configuration information. Specifically, if the valid information indicates that the candidate cell configuration information is unavailable, the candidate cell configuration information in the LTM configuration information is deleted; if the valid information indicates that the candidate cell configuration information is valid, the candidate cell configuration information in the LTM configuration information is retained; if the valid information indicates that the candidate cell configuration information needs to be updated, the candidate cell configuration information in the LTM configuration information is retained or deleted.

[0290] In addition, the source network device also obtains the resource usage of the second service cell and the neighboring cells of the second service cell, where the second service cell is the cell currently accessed by the terminal device; obtains the measurement report carried by the wireless resource control recovery request message; and determines the processing method of the LTM configuration information based on the resource usage and the measurement report.

[0291] Specifically, resource usage includes physical resource usage, user load, and processing resource capacity. The source network device determines whether to continue to reserve candidate cell resources in the LTM configuration information for the target user based on these resource usage conditions.

[0292] S1006. RRC recovery message.

[0293] Then, the source network device sends an RRC recovery message to the terminal device. The RRC recovery message carries second information, and the second information is used to indicate how the terminal device processes the configuration information of the LTM.

[0294] Specifically, the second information can be 1-bit indication information. If the indication information is 0, it indicates deletion of the LTM configuration information, and 1 indicates continued retention of the LTM configuration information, or the second information can be 2-bit indication information. If the indication information is 00, it indicates deletion; if the indication information is 01, it indicates subsequent reconfiguration (update); if the indication information is 11, it indicates continued retention or re-issuance of a new set of LTM configuration information, using the candidate cell identifier as an index. If the newly configured candidate cell identifier is consistent with one of the identifiers of the configuration information of the originally retained candidate cell, check whether there is new configuration information. If so, retain the original configuration according to the new configuration information; if not, continue to save according to the original configuration information; if the candidate cell identifier of the new configuration information contains a candidate cell identifier that was not originally saved, save according to the new configuration information; if the candidate cell identifier of the new configuration information does not contain the originally saved candidate cell, delete the configuration information corresponding to the candidate cell.

[0295] In FIG10 , the source network device and the terminal device interact with each other, and the source network device updates the configuration information of the LTM and determines the processing method of the configuration information of the LTM.

[0296] In another exemplary embodiment, when the target network device is executed as the subject of S901, referring to FIG11 , the following steps are included:

[0297] S1101. RRC recovery request message.

[0298] The target network device receives an RRC recovery request message from the terminal device, where the RRC recovery request message carries first information, and the first information includes: a terminal device identifier and / or a candidate cell identifier.

[0299] S1102: UE context request message.

[0300] Among them, the target network device determines the source network device according to the terminal device identifier and / or candidate cell identifier, and then sends a context request message to the source network device to obtain the configuration information of LTM. The context request message can carry the terminal device identifier and / or candidate cell identifier.

[0301] S1103. Retrieve LTM configuration information.

[0302] The source network device retrieves the corresponding LTM configuration information in the source network device based on the terminal device identifier and / or the candidate cell identifier.

[0303] S1104: First request message.

[0304] The other network device is a network device corresponding to the candidate cell in the LTM configuration information. The source network device sends a first request message to the other network device. The source network device sends the first request message to the other network device, and the first request message is used to request the other network device to determine the valid information of the candidate cell. The valid information includes: whether the configuration information of the candidate cell is valid, and if not, whether it needs to be updated or deleted.

[0305] S1105. First response message.

[0306] The source network device receives a first response message sent by other network devices, where the first response message carries valid information.

[0307] S1106: Update the configuration information of the LTM.

[0308] The source network device updates the LTM configuration information based on the valid information to obtain updated LTM configuration information. The specific updating method is as follows: if the valid information indicates that the configuration information of the candidate cell is unavailable, the configuration information of the candidate cell in the LTM configuration information is deleted; if the valid information indicates that the configuration information of the candidate cell is valid, the configuration information of the candidate cell in the LTM configuration information is retained; if the valid information indicates that the configuration information of the candidate cell needs to be updated, the configuration information of the candidate cell is retained in the LTM configuration information.

[0309] Among them, the source network device updates the configuration information of LTM and also includes: adding configuration information of the candidate cell to the configuration information of LTM according to the second service cell and the neighboring area information of the second service cell, and the second service cell is the cell currently accessed by the terminal device.

[0310] It can be understood that the newly added candidate cell configuration information is the configuration information of the candidate cell that is not included in the original LTM configuration information. For example, if the terminal device has saved the candidate cell configuration information corresponding to cell 1, cell 2, cell 3, and cell 4, and needs to configure cell 5 and cell 6 as neighboring cells of the second serving cell where the terminal device is located, the configuration information of cell 5 can be added as the candidate cell configuration information.

[0311] S1107. UE context response message.

[0312] The source network device sends a context response message to the target network device, where the context response message carries configuration information and validity information of the LTM.

[0313] S1108. Determine the processing method.

[0314] The target network device determines a processing method for the LTM configuration information according to the LTM configuration information, resource usage, and measurement report.

[0315] S1109, RRC recovery message.

[0316] Then, the target network device sends an RRC recovery message to the terminal device, where the RRC recovery message carries second information, and the second information is used to indicate how the terminal device processes the configuration information of the LTM.

[0317] In FIG11 , the target network device and the terminal device interact with each other, the source network device updates the configuration information of the LTM, and the target network device determines the processing method of the configuration information of the LTM.

[0318] In one embodiment, when the execution subject of S901 is the target network device, there are two cases, with reference to FIG12 and FIG13 , wherein FIG12 specifically includes the following steps:

[0319] S1201. RRC recovery request message.

[0320] Among them, when the terminal device is in the RRC inactive state and has data to be transmitted, it sends an RRC recovery request message to the target network device.

[0321] S1202: UE context request message.

[0322] S1203: First request message.

[0323] S1204: First response message.

[0324] S1205: UE context response message.

[0325] S1206, RRC recovery message.

[0326] Among them, the specific implementation process of S1201 to S1206 refers to S1101 to S1109 and will not be repeated here.

[0327] S1207: RRC recovery complete message.

[0328] After processing the LTM configuration information, the terminal device switches to RRC_CONNECTED and then sends an RRC recovery complete message to the target network device.

[0329] S1208, Xn-u address indication.

[0330] Among them, after receiving the wireless resource recovery completion message from the endpoint device, the target network device sends an Xn-u address indication to the source network device, so that the source network device connects to the AMF according to the Xn-u address.

[0331] S1209: Path conversion request.

[0332] S1210: Path conversion request response.

[0333] Among them, S1209 and S1210 implement the path conversion of data transmission.

[0334] S1211. UE context release.

[0335] The target network device sends a UE context release to the source network device, instructing the source network device to release the UE context.

[0336] When the terminal device updates RNA, FIG13 specifically includes the following steps:

[0337] S1301. RRC recovery request message.

[0338] S1302: UE context request message.

[0339] S1303: First request message.

[0340] S1304: First response message.

[0341] S1305: UE context response message.

[0342] The specific implementation process of S1301 to S1305 refers to S1101 to S1107 and will not be repeated here.

[0343] S1306. Set the UE to RRC_INACTIVE.

[0344] In FIG13 , the terminal device sends an RRC recovery request message to the target network device when the RNA is updated, and the terminal device does not need to transmit data. The target network device then sets the terminal device to an RRC inactive state.

[0345] S1307, Xn-u address indication.

[0346] S1308: Path conversion request.

[0347] S1309: Path conversion request response.

[0348] S1307 to S1309 refer to S1208 to S1210 and will not be repeated here.

[0349] S1310, RRC release message.

[0350] In an embodiment of the present application, the RRC release message carries a processing method for the LTM configuration information. After receiving the RRC release message, the terminal device processes the LTM configuration information according to the processing method, such as continuing to retain the LTM configuration information, updating the LTM configuration information, or deleting the saved LTM configuration information and reconfiguring new LTM configuration information.

[0351] Furthermore, after receiving the RRC release message, the terminal device still maintains the RRC inactive state.

[0352] S1311, UE context release

[0353] In an optional embodiment, if the terminal device needs to update the RNA, such as when the timer has not timed out or the RNA needs to be updated when the RNA changes, the first information is carried in the RNAU (based Notification Area Update, RAN-based notification area update) message, and the terminal device sends the RNAU message to the target network device to notify the target network device. The terminal device stores the configuration information of the LTM, and the target network device can choose to update or delete the configuration information of the LTM.

[0354] Furthermore, when the terminal device migrates to RRC_IDLE, the configuration information of LTM is deleted.

[0355] In an embodiment of the present application, the configuration information of the LTM includes: configuration information for the first serving cell, and configuration information of each candidate cell of the first serving cell. The first serving cell is the serving cell when the configuration information of the LTM is saved.

[0356] Furthermore, the configuration information of the candidate cell includes at least one of: L1 or L2 measurement information, channel resource information, user plane bearer information, control plane bearer information, and advance acquisition of uplink or downlink synchronization information.

[0357] This application saves the LTM configuration information instead of deleting the LTM configuration information when migrating to RRC_INACTIVE. This allows the terminal device to instruct the network device to continue using the LTM configuration information when accessing the candidate cell corresponding to the LTM configuration information next time, thereby saving downlink signaling overhead, reducing the impact of state migration on data transmission and switching interruptions, and improving user experience.

[0358] 14 , a method for configuring wireless communication is also provided. The method is performed by the source network device in the scenario of FIG. 11 , and specifically includes the following steps:

[0359] S141. Obtain indication information, where the indication information includes a terminal device identifier and / or a candidate cell identifier.

[0360] The indication information is carried in the terminal device context request message or other Xn interface messages.

[0361] 11 and 12 , the indication information is carried in a UE context request message sent by the target network device to the source network device. In addition, the indication information may also be carried in an Xn interface message sent by the target network device to the source network device.

[0362] S142. Retrieve L1 / L2 triggered mobility configuration information corresponding to the terminal device identifier and / or the candidate cell identifier.

[0363] The source network device may retrieve the configuration information of the LTM from the source network device.

[0364] S143. Obtain valid information of the configuration information of the candidate cell in the configuration information of the L1 / L2 triggered mobility.

[0365] Among them, obtaining valid information of the configuration information of the candidate cell in the configuration information of L1 / L2 triggered mobility includes: sending a first request message to other network devices corresponding to the candidate cell, the first request message is used to instruct other network devices to determine the valid information of the configuration information of the candidate cell; obtaining the valid information sent by other network devices.

[0366] Specifically, the source network device needs to determine the validity information of the candidate cell's configuration information from other network devices corresponding to the candidate cell, including the validity of the candidate cell's configuration information and whether it needs to be updated. Furthermore, the candidate cell's configuration information is the portion of the LTM configuration information related to the candidate cell.

[0367] For example, the configuration information of LTM is configured with 8 candidate cells, namely candidate cell 1 to candidate cell 8, among which the network device serving candidate cell 1, candidate cell 2 and candidate cell 3 is other network device a, the network device serving candidate cell 4, candidate cell 5 and candidate cell 6 is other network device b, and the network device serving candidate cell 7 and candidate cell 8 is other network device c.

[0368] Furthermore, the valid information includes at least one of: a cell representation of a candidate cell whose configuration information is valid in the configuration information of the LTM, a cell identifier of a candidate cell whose configuration information is unavailable, and a cell identifier of a candidate cell whose configuration information needs to be updated.

[0369] Specifically, referring to Figures 11 to 13, the source network device sends a first request message to other network device a. This first request message carries the cell identifiers and configuration information of candidate cells 1, 2, and 3, enabling other network device a to determine the valid information of each of these cells. This valid information is returned to the source network device in a first response message. The source network device then sends a first request message to other network device b. This first request message carries the cell identifiers and configuration information of candidate cells 4, 5, and 6, enabling other network device b to determine the valid information of each of these cells. This valid information is returned to the source network device in a first response message. The source network device then sends a first request message to other network device c. This first request message carries the cell identifiers and configuration information of candidate cells 7 and 8, enabling other network device c to determine the valid information of each of these cells. This valid information is returned to the source network device in a first response message. The source network device then obtains the valid information of each candidate cell.

[0370] S144: Update the configuration information of L1 / L2 triggered mobility according to the valid information to obtain updated configuration information of L1 / L2 triggered mobility.

[0371] In addition, in an optional embodiment, if the valid information indicates that the configuration information of one of the candidate cells is unavailable, the source network device deletes the configuration information of the candidate cell from the LTM configuration information and records the cell identifier of the candidate cell. For example, if the configuration information of candidate cell 3 is unavailable, the source network device deletes the configuration information of candidate cell 3 from the LTM configuration information and records the cell identifier of candidate cell 3.

[0372] In another optional embodiment, if the validity information indicates that the configuration information of one of the candidate cells is valid, the source network device continues to retain the configuration information of the candidate cell in the LTM configuration information. For example, if the configuration information of candidate cell 1, candidate cell 2, candidate cell 5, and candidate cell 7 is valid, the source network device retains the configuration information of candidate cell 1, candidate cell 2, candidate cell 5, and candidate cell 7 in the LTM configuration information.

[0373] In another optional embodiment, if the valid information indicates that the configuration information of one of the candidate cells needs to be updated, the source network device continues to retain the configuration information of the candidate cell in the configuration information of the LTM or deletes the configuration information of the candidate cell in the configuration information of the LTM, and records the cell identifiers of these deleted candidate cells. For example, if the configuration information of candidate cell 4, candidate cell 6 and candidate cell 8 needs to be updated, the source network device retains the configuration information of candidate cell 4, candidate cell 6 and candidate cell 8 in the configuration information of the LTM or deletes the configuration information of candidate cell 4, candidate cell 6 and candidate cell 8 in the configuration information of the LTM, and records the cell identifiers of these deleted candidate cell 4, candidate cell 6 and candidate cell 8.

[0374] In an embodiment of the present application, if the configuration information of each candidate cell in the LTM configuration information is valid, it is determined that the LTM configuration information is valid and does not need to be updated. Otherwise, the LTM configuration information is updated in the above manner to obtain the updated LTM configuration information.

[0375] S145 . Send reply information, where the reply information includes: configuration information of L1 / L2 triggered mobility or updated configuration information of L1 / L2 triggered mobility.

[0376] In the embodiment of the present application, if the configuration information of the LTM does not need to be updated, the reply information includes the original configuration information of the LTM; if it needs to be updated, the reply information includes the updated configuration information of the LTM.

[0377] The reply information is carried in the terminal device context response message or other Xn interface message.

[0378] This application saves the LTM configuration information instead of deleting the LTM configuration information when migrating to RRC_INACTIVE. This allows the terminal device to instruct the network device to continue using the LTM configuration information when accessing the candidate cell corresponding to the LTM configuration information next time, thereby saving downlink signaling overhead, reducing the impact of state migration on data transmission and switching interruptions, and improving user experience.

[0379] For other specific implementation processes of this embodiment, please refer to the above content and will not be repeated here.

[0380] FIG15 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application. As shown in FIG15 , the terminal device 150 of this embodiment includes: an acquisition module 151 and a storage module 152, wherein:

[0381] Acquisition module 151, used to obtain instruction information

[0382] The saving module 151 is configured to save the configuration information of the L1 / L2 triggered mobility when migrating to the radio resource control inactive state based on the indication information.

[0383] In an optional embodiment, the indication information is carried in a radio resource control release message.

[0384] In an optional embodiment, the radio resource control release message carries at least one of a timer, a cell identifier of a valid cell, and a radio notification area list of a valid area. The timer is used to indicate the configuration information of L1 / L2 triggered mobility. The cell identifier of the valid cell and the radio notification area list of the valid area are both used to indicate the applicable cells of the configuration information of L1 / L2 triggered mobility.

[0385] In an optional embodiment, the configuration information of L1 / L2 triggered mobility includes: configuration information for the first service cell and configuration information of each candidate cell of the first service cell. The first service cell is the service cell when the configuration information of L1 / L2 triggered mobility is saved.

[0386] In an optional embodiment, the configuration information of the candidate cell includes: at least one of L1 or L2 measurement information, channel resource information, user plane bearer information, control plane bearer information, and advance acquisition of uplink or downlink synchronization information.

[0387] In an optional embodiment, the method further includes: a sending module (not shown), configured to send first information to the network device, where the first information is used to indicate that configuration information for triggering L1 / L2 mobility is available.

[0388] In an optional embodiment, the first information includes: a terminal device identifier and / or a candidate cell identifier, where the candidate cell identifier is a cell identifier of the candidate cell in the configuration information of the L1 / L2 triggered mobility.

[0389] In an optional embodiment, the first information is carried in a radio resource control recovery request message.

[0390] In an optional embodiment, the first service cell when saving the configuration information of L1 / L2 triggered mobility is the same as the second service cell when sending the first information; or, the first service cell when saving the configuration information of L1 / L2 triggered mobility is different from the second service cell when sending the first information.

[0391] In an optional embodiment, the second service cell is a candidate cell in the configuration information of L1 / L2 triggered mobility, and the sending module is specifically used to apply the configuration information of L1 / L2 triggered mobility under preset conditions to send the first information to the network device. The preset conditions include: the current time meets the time specified by the timer and / or the second service cell belongs to a valid cell.

[0392] In an optional embodiment, the acquisition module 151 is also used to obtain second information, where the second information indicates a processing method for the configuration information of L1 / L2 triggered mobility; and also includes a processing module (not shown) for performing corresponding processing on the configuration information of L1 / L2 triggered mobility according to the processing method.

[0393] In an optional embodiment, the processing method includes: retaining the configuration information of L1 / L2 triggered mobility, deleting the configuration information of LTM, updating the configuration information of L1 / L2 triggered mobility, or adding the configuration information of L1 / L2 triggered mobility.

[0394] The terminal device provided in this embodiment is used to implement the technical solution of the terminal device in the aforementioned method embodiment. Its implementation principle and technical effects are similar and will not be repeated here.

[0395] Figure 16 is a schematic diagram of the structure of a network device provided in an embodiment of the present application. As shown in Figure 16, the network device 160 of this embodiment includes: an acquisition module 161 for acquiring first information indicating that the configuration information of the LTM is available.

[0396] In an optional embodiment, the first information is carried in a radio resource control recovery request message.

[0397] In an optional embodiment, the first information includes: a terminal device identifier and / or a candidate cell identifier, where the candidate cell identifier is a cell identifier of the candidate cell in the configuration information of the radio resource control.

[0398] In an optional embodiment, the acquisition module 161 is also used to obtain the configuration information of L1 / L2 triggered mobility based on the terminal device identifier and / or the candidate cell identifier; and also includes: a determination module, used to determine the processing method of the configuration information of L1 / L2 triggered mobility, indicating the second information, and the second information is used to indicate the processing method of the configuration information of L1 / L2 triggered mobility.

[0399] In an optional embodiment, the acquisition module 161 is specifically configured to acquire the configuration information of L1 / L2 triggered mobility from a source network device, where the source network device is a serving network device that configures the configuration information of L1 / L2 triggered mobility for the terminal device.

[0400] In an optional embodiment, a determination module (not shown) is specifically used to obtain resource usage of a second service cell and neighboring cells of the second service cell, where the second service cell is the cell to which the terminal device is currently accessed; obtain a measurement report carried by a wireless resource control recovery request message; and determine a processing method for the configuration information of L1 / L2 triggered mobility based on the resource usage and the measurement report.

[0401] In an optional embodiment, the processing method includes: retaining the configuration information of L1 / L2 triggered mobility, deleting the configuration information of L1 / L2 triggered mobility, updating the configuration information of L1 / L2 triggered mobility, or adding the configuration information of L1 / L2 triggered mobility.

[0402] The network device provided in this embodiment may be a core network device or an access network device, and is used to implement the technical solution of the core network device or the access network device in the aforementioned method embodiment. The implementation principle and technical effects are similar and will not be repeated here.

[0403] FIG17 is a schematic diagram of the structure of a network device provided in an embodiment of the present application. As shown in FIG17 , the network device 170 of this embodiment includes:

[0404] A first acquisition module 171 is configured to acquire indication information, where the indication information includes a terminal device identifier and / or a candidate cell identifier;

[0405] A retrieval module 172 is configured to retrieve L1 / L2 triggered mobility configuration information corresponding to a terminal device identifier and / or a candidate cell identifier;

[0406] The second acquisition module 173 is configured to acquire valid information of the configuration information of the candidate cell in the configuration information of the L1 / L2 triggered mobility;

[0407] An updating module 174 is configured to update the configuration information of the L1 / L2 triggered mobility according to the valid information to obtain the updated configuration information of the L1 / L2 triggered mobility;

[0408] The sending module 175 is configured to send a reply message, where the reply message includes: the configuration information of the L1 / L2 triggered mobility or the updated configuration information of the L1 / L2 triggered mobility.

[0409] In an optional embodiment, the indication information is carried in a terminal device context request message or other Xn interface messages.

[0410] In an optional embodiment, the reply information is carried in a terminal device context response message or other Xn interface message.

[0411] In an optional embodiment, the second acquisition module 173 is specifically used to send a first request message to other network devices corresponding to the candidate cell, where the first request message is used to instruct other network devices to determine valid information of the configuration information of the candidate cell; and obtain valid information sent by other network devices.

[0412] In an optional embodiment, the valid information includes at least one of the following: a cell identifier of a candidate cell whose configuration information is valid, a cell identifier of a candidate cell whose configuration information is unavailable, and a cell identifier of a candidate cell whose configuration information needs to be updated in the configuration information of L1 / L2 triggered mobility.

[0413] In an optional embodiment, the update module 174 is specifically configured to:

[0414] If the valid information indicates that the configuration information of the candidate cell is unavailable, the configuration information of the candidate cell in the configuration information of the L1 / L2 triggered mobility is deleted;

[0415] If the valid information indicates that the configuration information of the candidate cell is valid, the configuration information of the candidate cell in the configuration information of the L1 / L2 triggered mobility is retained;

[0416] If the valid information indicates that the configuration information of the candidate cell needs to be updated, the configuration information of the candidate cell in the configuration information of L1 / L2 triggered mobility is retained or deleted.

[0417] In an optional embodiment, the update module 174 is also used to: add configuration information of the candidate cell in the configuration information of L1 / L2 triggered mobility based on the second service cell and the neighboring area information of the second service cell, where the second service cell is the cell currently accessed by the terminal device.

[0418] The network device provided in this embodiment may be a core network device or an access network device, and is used to implement the technical solution of the core network device or the access network device in the aforementioned method embodiment. The implementation principle and technical effects are similar and will not be repeated here.

[0419] Figure 18 is a schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present application. As shown in Figure 18, electronic device 180 includes: a processor 181 and a memory 182; memory 182 stores computer-executable instructions; processor 181 executes the computer-executable instructions stored in memory 182, so that the electronic device performs the technical solutions in the aforementioned method embodiments. The implementation principles and technical effects are similar and will not be further described here.

[0420] An embodiment of the present application further provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the method steps in the aforementioned method embodiment are implemented.

[0421] An embodiment of the present application provides a computer program product, including a computer program. When the computer program is executed, the computer executes the method steps in the aforementioned method embodiment.

[0422] The methods described in the above embodiments can be implemented in whole or in part through software, hardware, firmware, or any combination thereof. If implemented in software, the functions can be stored as one or more instructions or codes on a computer-readable medium or transmitted on a computer-readable medium. Computer-readable media can include computer storage media and communication media, and can also include any medium that can transfer a computer program from one place to another. The storage medium can be any target medium that can be accessed by a computer.

[0423] In one possible implementation, computer-readable media may include RAM, ROM, compact disc read-only memory (CD-ROM) or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium designed to carry or store the desired program code in the form of instructions or data structures and accessible by a computer. Moreover, any connection is appropriately referred to as a computer-readable medium. For example, if a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technologies such as infrared, radio and microwave are used to transmit software from a website, server or other remote source, the coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, radio and microwave are included in the definition of medium. Disk and optical disk as used herein include optical disk, laser disk, optical disk, digital versatile disk (DVD), floppy disk and Blu-ray disk, where disks generally reproduce data magnetically, while optical disks reproduce data optically using lasers. Combinations of the above should also be included within the scope of computer-readable media.

[0424] An embodiment of the present application provides a computer program product, which includes a computer program. When the computer program is executed, the computer executes the above method.

[0425] The present application embodiment is described with reference to the flowchart and / or block diagram of the method, device (system) according to the embodiment of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, and the combination of the process and / or box in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processing unit of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable device to produce a machine, so that the instructions executed by the processing unit of the computer or other programmable data processing device produce a device for implementing the function specified in one process or multiple processes in the flowchart and / or one box or multiple boxes in the block diagram.

[0426] The above specific implementation methods further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific implementation methods of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for wireless communication configuration, characterized in that: include: Get instructions; When migrating to the radio resource control inactive state based on the indication information, the configuration information of the L1 / L2 triggered mobility is saved.

2. The method according to claim 1, characterized in that The indication information is carried in a radio resource control release message.

3. The method according to claim 2, characterized in that The radio resource control release message carries at least one of a timer, a cell identifier of a valid cell, and a radio notification area list of a valid area, the timer is used to indicate the configuration information of the L1 / L2 triggered mobility, and the cell identifier of the valid cell and the radio notification area list of the valid area are both used to indicate the applicable cell of the configuration information of the L1 / L2 triggered mobility.

4. The method according to any one of claims 1 to 3, characterized in that The configuration information of the L1 / L2 triggered mobility includes: configuration information for the first serving cell and configuration information of each candidate cell of the first serving cell. The first serving cell is the serving cell when the configuration information of the L1 / L2 triggered mobility is stored.

5. The method according to claim 4, characterized in that The configuration information of the candidate cell includes: at least one of L1 or L2 measurement information, channel resource information, user plane bearer information, control plane bearer information, and advance acquisition of uplink or downlink synchronization information.

6. The method according to any one of claims 1 to 5, characterized in that Also includes: First information is sent to a network device, where the first information is used to indicate that configuration information for triggering L1 / L2 mobility is available.

7. The method according to claim 6, characterized in that The first information includes: a terminal device identifier and / or a candidate cell identifier, where the candidate cell identifier is a cell identifier of a candidate cell in the configuration information of the L1 / L2 triggered mobility.

8. The method according to claim 6 or 7, characterized in that The first information is carried in a radio resource control recovery request message.

9. The method according to any one of claims 6 to 8, characterized in that The first serving cell when storing the configuration information of the L1 / L2 triggered mobility is the same as the second serving cell when sending the first information; Alternatively, the first serving cell when storing the configuration information of the L1 / L2 triggered mobility is different from the second serving cell when sending the first information.

10. The method according to claim 8, characterized in that The second serving cell is a candidate cell in the configuration information of the L1 / L2 triggered mobility, and the sending the first information to the network device includes: Under preset conditions, the configuration information of the L1 / L2 triggered mobility is applied to send the first information to the network device, and the preset conditions include: the current time meets the time specified by the timer and / or the second serving cell is a valid cell.

11. The method according to any one of claims 6 to 10, characterized in that Also includes: Acquire second information, where the second information indicates a processing method of the configuration information of the L1 / L2 triggered mobility; According to the processing manner, the configuration information of the L1 / L2 triggered mobility is processed accordingly.

12. The method according to claim 11, characterized in that The processing manner includes: retaining the configuration information of the L1 / L2 triggered mobility, deleting the configuration information of the L1 / L2 triggered mobility, updating the configuration information of the L1 / L2 triggered mobility, or adding the configuration information of the L1 / L2 triggered mobility.

13. A method for wireless communication configuration, characterized in that: include: First information is obtained, where the first information indicates that configuration information for L1 / L2 triggered mobility is available.

14. The method according to claim 13, characterized in that The first information is carried in a radio resource control recovery request message.

15. The method according to claim 13 or 14, characterized in that The first information includes: a terminal device identifier and / or a candidate cell identifier, where the candidate cell identifier is a cell identifier of a candidate cell in the configuration information of the L1 / L2 triggered mobility.

16. The method according to claim 15, characterized in that Also includes: Acquire L1 / L2 triggered mobility configuration information according to the terminal device identifier and / or candidate cell identifier; Determine a processing method for the configuration information of the L1 / L2 triggered mobility, and indicate second information, where the second information is used to indicate a processing method for the configuration information of the L1 / L2 triggered mobility.

17. The method according to claim 16, characterized in that The acquiring of the configuration information of the L1 / L2 triggered mobility includes: The configuration information of the L1 / L2 triggered mobility is acquired from a source network device, where the source network device is a serving network device that configures the configuration information of the L1 / L2 triggered mobility for the terminal device.

18. The method according to any one of claims 16 to 17, characterized in that The method for determining the processing of the configuration information of the L1 / L2 triggered mobility includes: Obtain resource usage of a second serving cell and a neighboring cell of the second serving cell, where the second serving cell is a cell currently accessed by the terminal device; Obtaining a measurement report carried in the radio resource control recovery request message; Determine a processing method for the configuration information of the L1 / L2 triggered mobility according to the resource usage and the measurement report.

19. The method according to claim 18, characterized in that The processing manner includes: retaining the configuration information of the L1 / L2 triggered mobility, deleting the configuration information of the L1 / L2 triggered mobility, updating the configuration information of the L1 / L2 triggered mobility, or adding the configuration information of the L1 / L2 triggered mobility.

20. A method for wireless communication configuration, characterized in that: include: Obtaining indication information, where the indication information includes a terminal device identifier and / or a candidate cell identifier; Retrieving L1 / L2 triggered mobility configuration information corresponding to the terminal device identifier and / or candidate cell identifier; Obtaining valid information of configuration information of candidate cells in the configuration information of the L1 / L2 triggered mobility; Updating the configuration information of the L1 / L2 triggered mobility according to the valid information to obtain updated configuration information of the L1 / L2 triggered mobility; Sending reply information, where the reply information includes: the configuration information of the L1 / L2 triggered mobility or the updated configuration information of the L1 / L2 triggered mobility.

21. The method for wireless communication configuration according to claim 20, wherein: The indication information is carried in a terminal device context request message or other Xn interface messages.

22. The method for wireless communication configuration according to claim 20 or 21, characterized in that: The reply information is carried in the terminal device context response message or other Xn interface message.

23. The method for wireless communication configuration according to any one of claims 20 to 22, characterized in that: The acquiring valid information of the configuration information of the candidate cell in the configuration information of the L1 / L2 triggered mobility includes: Sending a first request message to other network devices corresponding to the candidate cell, where the first request message is used to instruct the other network devices to determine valid information of the configuration information of the candidate cell; Acquire valid information sent by the other network devices.

24. The method for wireless communication configuration according to any one of claims 20 to 23, characterized in that: The valid information includes at least one of the following: a cell identifier of a candidate cell whose configuration information is valid, a cell identifier of a candidate cell whose configuration information is unavailable, and a cell identifier of a candidate cell whose configuration information needs to be updated in the configuration information of the L1 / L2 triggered mobility.

25. The method for wireless communication configuration according to claim 24, wherein: The updating of the configuration information of the L1 / L2 triggered mobility according to the valid information to obtain the updated configuration information of the L1 / L2 triggered mobility includes: If the valid information indicates that the configuration information of the candidate cell is unavailable, deleting the configuration information of the candidate cell in the configuration information of the L1 / L2 triggered mobility; If the valid information indicates that the configuration information of the candidate cell is valid, then the configuration information of the candidate cell in the configuration information of the L1 / L2 triggered mobility is retained; If the valid information indicates that the configuration information of the candidate cell needs to be updated, the configuration information of the candidate cell in the configuration information of the L1 / L2 triggered mobility is retained or deleted.

26. The method for wireless communication configuration according to any one of claims 20 to 25, characterized in that: Also includes: According to the second serving cell and the neighboring cell information of the second serving cell, the configuration information of the candidate cell is added to the configuration information of the L1 / L2 triggered mobility, and the second serving cell is the cell currently accessed by the terminal device.

27. An electronic device, characterized in that: include: processor and memory; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory, so that the electronic device performs the method as described in any one of claims 1 to 12, or the electronic device performs the method as described in any one of claims 13 to 19, or the electronic device performs the method as described in any one of claims 20 to 26.

28. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, it implements the method according to any one of claims 1 to 12, or enables the electronic device to execute the method according to any one of claims 13 to 19, or enables the electronic device to execute the method according to any one of claims 20 to 26.

29. A computer program product, characterized in that Comprising a computer program, which, when executed, causes a computer to execute the method as claimed in any one of claims 1 to 12, or causes the electronic device to execute the method as claimed in any one of claims 13 to 19, or causes the electronic device to execute the method as claimed in any one of claims 20 to 26.

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