WO2021026747A1

WO2021026747A1 - Radio communication method and a terminal device

Info

Publication number: WO2021026747A1
Application number: PCT/CN2019/100281
Authority: WO
Inventors: 尤心
Original assignee: Oppo广东移动通信有限公司
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2021-02-18
Also published as: CN113519183B; CN113519183A

Abstract

Provided in the embodiments of the present are a radio communication method, a terminal device, and a network device. If the terminal device is unable comply with first information in RRC connection reconfiguration information, the terminal device responds on the basis of the source of the first information and/or of the type of the first information, thus preventing the terminal device from directly launching an RRC connection reestablishment process when unable to comply with the first information in the RRC connection reconfiguration information, and preventing a data transmission interruption caused by an unnecessary RRC connection reestablishment process. The radio communication method comprises: a terminal device receives RRC connection reconfiguration information, the RRC connection reconfiguration information comprising first information; if the terminal device is unable to comply with the first information in the RRC connection reconfiguration information, the terminal device responds on the basis of the source of the first information and/or of the type of the first information.

Description

Wireless communication method and terminal equipment

Technical field

The embodiments of the present application relate to the communication field, and more specifically, to a wireless communication method and terminal device.

Background technique

In the Long Term Evolution (LTE) system and the New Radio (NR) system, a handover process based on conditional triggering is introduced. However, how to implement the handover process based on conditional triggering is a technical problem to be solved urgently.

Summary of the invention

The embodiments of the present application provide a wireless communication method and terminal device, which can implement a handover process based on a condition trigger.

In a first aspect, a wireless communication method is provided, which includes:

The terminal device receives radio resource control (Radio Resource Control, RRC) connection reconfiguration information, where the RRC connection reconfiguration information includes the first information;

If the terminal device cannot comply with the first information in the RRC connection reconfiguration information, the terminal device responds according to the source of the first information and/or the type of the first information.

Optionally, the RRC connection reconfiguration information is used to carry a conditional handover command (CHO CMD), and/or the RRC connection reconfiguration information is used to configure, update, modify or delete the conditional handover command.

In a second aspect, a terminal device is provided, which is used to execute the method in the first aspect or its implementation manners.

Specifically, the terminal device includes a functional module for executing the method in the foregoing first aspect or each implementation manner thereof.

In a third aspect, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the above-mentioned first aspect or each of its implementation modes.

In a fourth aspect, a device is provided to implement the method in each implementation manner in the first aspect.

Specifically, the device includes a processor, configured to call and run a computer program from the memory, so that the device installed with the device executes the method in each implementation manner in the first aspect described above.

In a fifth aspect, a computer-readable storage medium is provided for storing a computer program that enables a computer to execute the method in each implementation manner in the foregoing first aspect.

In a sixth aspect, a computer program product is provided, including computer program instructions that cause a computer to execute the method in each implementation manner in the above-mentioned first aspect.

In a seventh aspect, a computer program is provided, which when running on a computer, causes the computer to execute the method in each implementation manner in the first aspect.

Through the above technical solution, if the terminal device cannot comply with the first information in the RRC connection reconfiguration information, the terminal device responds according to the source of the first information and/or the type of the first information, so as to avoid the failure to comply with the RRC connection reconfiguration information The terminal device directly initiates the RRC connection re-establishment procedure, which also avoids the interruption of data transmission caused by unnecessary RRC connection re-establishment procedures.

Description of the drawings

Fig. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.

Fig. 2 is a schematic diagram of a handover process based on an Xn interface provided by an embodiment of the present application.

FIG. 3 is a schematic diagram of a handover flow based on conditional trigger provided by an embodiment of the present application.

Fig. 4 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.

Fig. 5 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 6 is a schematic block diagram of a communication device according to an embodiment of the present application.

Fig. 7 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.

Fig. 8 is a schematic block diagram of a communication system according to an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, not all of the embodiments. Regarding the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

The embodiments of this application can be applied to various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (Wideband Code) Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Wireless (New Radio, NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum, on unlicensed spectrum, NR-U) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), next-generation communication systems or other communication systems, etc.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device (Device to Device, D2D) communication, machine to machine (Machine to Machine, M2M) communication, machine type communication (MTC), and vehicle to vehicle (V2V) communication, etc. The embodiments of this application can also be applied to these communications system.

Optionally, the communication system in the embodiment of the present application can be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, can also be applied to a dual connectivity (Dual Connectivity, DC) scenario, and can also be applied to a standalone (SA) deployment. Network scene.

The embodiment of this application does not limit the applied spectrum. For example, the embodiments of this application can be applied to licensed spectrum or unlicensed spectrum.

Exemplarily, the communication system 100 applied in the embodiment of the present application is shown in FIG. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or called a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area.

Figure 1 exemplarily shows one network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.

Optionally, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.

It should be understood that the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices. Taking the communication system 100 shown in FIG. 1 as an example, the communication device may include a network device 110 and a terminal device 120 with communication functions, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. The communication device may also include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the application.

It should be understood that the terms "system" and "network" in this article are often used interchangeably in this article. The term "and/or" in this article is only an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, exist alone B these three situations. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

The embodiments of this application describe various embodiments in conjunction with terminal equipment and network equipment. Among them, terminal equipment may also be called User Equipment (UE), access terminal, subscriber unit, user station, mobile station, mobile station, and remote Station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc. The terminal equipment can be a station (STAION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, and a personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, and next-generation communication systems, such as terminal devices in the NR network or Terminal equipment in the future evolved Public Land Mobile Network (PLMN) network.

As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices. It is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones. Use, such as various smart bracelets and smart jewelry for physical sign monitoring.

A network device can be a device used to communicate with a mobile device. The network device can be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, or a device in WCDMA A base station (NodeB, NB) can also be an Evolutional Node B (eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device or base station in the NR network ( gNB) or network equipment in the future evolved PLMN network.

In the embodiment of the present application, the network equipment provides services for the cell, and the terminal equipment communicates with the network equipment through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell. The cell may be a network equipment (for example, The cell corresponding to the base station. The cell can belong to a macro base station or a base station corresponding to a small cell. The small cell here can include: Metro cell, Micro cell, Pico Cells, Femto cells, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.

Similar to the LTE system, the NR system supports the handover process of connected terminal equipment. When a user who is using network services moves from one cell to another cell, or due to wireless transmission traffic load adjustment, activation operation maintenance, equipment failure, etc., in order to ensure the continuity of communication and the quality of service, the system must transfer the user The communication link with the source cell is transferred to the new cell, that is, the handover process is performed.

Specifically, the Xn interface switching process may be as shown in FIG. 2, for example, the entire switching process is divided into the following three stages:

The first stage, handover preparation (1～5)

In 1, the source base station triggers the terminal device to perform neighbor cell measurement, so that the terminal device can measure the neighbor cell and report the measurement result to the source base station.

In 2, the source base station evaluates the measurement results reported by the terminal equipment and decides whether to trigger a handover.

In 3, if the source base station decides to trigger a handover, it can send a handover request to the target base station.

In 4, after the target base station receives the handover request sent by the source base station, it can start admission according to the service information carried by the source base station and perform radio resource configuration.

In 5, the target base station sends a handover request confirmation message to the source base station, and returns the admission result and wireless resource configuration information in the target base station to the source base station. At this point, the handover preparation phase is complete.

The second stage, switch execution (6～8)

In 6, after the source base station receives the handover request confirmation message of the target base station, it can trigger the terminal device to switch.

In 7, the source base station can forward the buffered data, data packets in transit, and the system serial number of the data to the target base station. And, the target base station can buffer the data received from the source base station

In addition, the terminal device can disconnect from the source base station and establish synchronization with the target base station.

In 8, the terminal device synchronizes to the target base station. At this point, the switching execution phase is complete.

The third stage, the handover is completed (209～212)

In 9, the target base station sends a path switching request to the mobility management function (Access and Mobility Management Function, AMF).

In 10, after the AMF receives the path switching request of the target base station, it performs path switching with the User Plane Function (UPF) to clear the path mark of the user plane of the source base station.

In 11, after the path switching is completed, the AMF can send a path switching confirmation message to the target base station.

In 12, the target base station sends a terminal device context release message to the source base station to notify the source base station that the handover is successful, and trigger the source base station terminal device context. At this point, the switch is complete.

In the embodiment of this application, the conditional handover process based on conditional handover can solve the problems of frequent handover and easy handover failure in high-speed mobile scenarios and high-frequency deployment scenarios. The basic principle is that the terminal device is configured according to the conditions of the network device. Perform handover to the target cell according to the pre-configured handover command when evaluating the triggering of conditions related to the target cell (that is, triggering the random access process and sending the handover completion message), avoiding too late or unable to send due to high-speed movement into the poor coverage area Measure the problem of reporting and receiving handover commands.

Specifically, the handover process triggered based on conditions can be as shown in Figure 2. Step 21, the source base station sends measurement configuration information to the terminal device; Step 22, the terminal device performs measurement report based on the measurement configuration; Step 23, the source base station communicates with The target base station exchanges handover preparation information; step 24, the source base station sends a conditional handover command (CHO CMD) to the terminal device, and the conditional handover command carries handover conditions such as cell or beam; step 25, When the conditional handover command is met, the terminal device realizes synchronization with the target base station.

It should be noted that the above conditional handover command contains the configuration information and cell execution conditions of the target cell. The cell handover conditions are configured by the source base station. The source base station adds the configured cell handover conditions to the RRC reconfiguration message and adds The RRC reconfiguration message is sent to the terminal device.

It should be noted that when the terminal device receives the RRC reconfiguration message, it will evaluate whether it can comply with the RRC reconfiguration message. If the terminal device's capabilities cannot meet the RRC reconfiguration message or cannot correctly decode the RRC reconfiguration message, the terminal device will Initiate the connection re-establishment process.

However, for the handover process based on conditional triggering, when the terminal device receives the conditional handover command (RRC reconfiguration message), the handover is not performed immediately. The terminal device maintains the connection with the source cell and evaluates the channel quality of the target cell in the conditional handover command And when the conditional switching command cannot be comply with, the terminal device initiates RRC connection re-establishment, which will cause additional data interruption.

Based on the above technical problems, embodiments of the present application provide a wireless communication method. If a terminal device cannot comply with the first information in the RRC connection reconfiguration information, the terminal device responds according to the source of the first information and/or the type of the first information This prevents the terminal device from directly initiating the RRC connection reconfiguration process when the first information in the RRC connection reconfiguration information cannot be complied with, and also avoids the data transmission interruption caused by the unnecessary RRC connection reconfiguration process.

The following describes in detail the wireless communication solution designed by the present application in response to the above technical problems.

FIG. 4 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application. As shown in FIG. 4, the method 200 may include some or all of the following contents:

S210: The terminal device receives RRC connection reconfiguration information, where the RRC connection reconfiguration information includes first information.

S220: If the terminal device cannot comply with the first information in the RRC connection reconfiguration information, the terminal device responds according to the source of the first information and/or the type of the first information.

It should be noted that if the terminal device cannot comply with the first information in the RRC connection reconfiguration information, it can be understood that the capability of the terminal device cannot satisfy the first information.

Optionally, the terminal device receives the RRC connection reconfiguration information sent by the source network device.

Optionally, in the embodiment of the present application, the RRC connection reconfiguration information is used to carry a conditional switching command, and/or the RRC connection reconfiguration information is used to configure, update, modify, or delete the conditional switching command. That is, the RRC connection reconfiguration information is configuration information for cell handover.

It should be noted that in the case that the terminal device cannot comply with the first information in the RRC connection reconfiguration information, it does not necessarily initiate the RRC connection re-establishment process, but rather, according to the first information The source of the first information and/or the type of the first information to respond, so as to avoid that the terminal device directly initiates the RRC connection re-establishment process when the first information in the RRC connection reconfiguration information cannot be complied with, which also avoids unnecessary RRC connections. Data transmission interruption caused by reconstruction process.

For example, the response may be to determine the target cell based on part or all of the configured first information. For another example, the response may be sending first indication information to the source network device, where the first indication information is used to instruct the source network device and/or the target network device to configure the first information for the terminal device. For another example, the response may be to select a target cell that meets the access conditions for access. For another example, the response may be to initiate an RRC connection re-establishment procedure.

Optionally, in this embodiment of the present application, the source of the first information includes that the first information is configured by the source network device and/or the first information is configured by the target network device. That is, part of the information carried in the RRC connection reconfiguration information may be configured by the source network device, and another part of the information carried in the RRC connection reconfiguration information may be configured by the target network device. Of course, the information carried in the RRC connection reconfiguration information may also be configured by the source network device or the target network device.

It should be noted that, in the embodiment of the present application, the target network device configures another part of the information carried in the RRC connection reconfiguration information can be understood as: the target network device transparently transmits the other part of the configuration information ( The transparent container (container) is sent to the source network device, and then the source network device encapsulates the other part of the information in the RRC connection reconfiguration information. That is, the source network device cannot modify the other part of the information. Of course, the source network device can also add part of its configuration information to the container, and then the source network device encapsulates part of its configuration information and another part of the target network device configuration information in the RRC connection reconfiguration information in.

For example, the target network device configures the target cell switching configuration, and then sends the target cell switching configuration to the source network device through the transparent transmission container; the source network device configures the cell switching conditions, and adds the cell switching conditions to the container, and finally, The source network device encapsulates the target cell handover configuration and the cell handover condition in the RRC connection reconfiguration information.

Optionally, in this embodiment of the present application, the type of the first information includes at least one of a target cell handover configuration, a cell handover condition, and a source cell reconfiguration message. That is, the RRC connection reconfiguration information may include at least one of target cell handover configuration, cell handover conditions, and source cell reconfiguration message, and the first information may include part or all of the target cell handover configuration Configuration information, and/or, the first information may include part or all of the information in the cell handover condition, and/or, the first information may include part or all of the information in the source cell reconfiguration message.

Optionally, the RRC connection reconfiguration information includes at least one of a target cell handover configuration, a cell handover condition, and a source cell reconfiguration message.

Optionally, the target cell handover configuration includes at least one of the following:

Cell Radio Network Temporary Identifier (Cell Radio Network Temporary Identity, C-RNTI), security algorithm identification of the target network device, dedicated random access preamble, access parameters, and system information block (System Information Block, SIB).

Optionally, the cell handover condition is used for the terminal device to make a cell handover decision. For example, the configuration of the cell handover condition corresponds to at least one measurement object configuration and/or measurement report configuration. Of course, the cell handover condition may also include a measurement event and a threshold value corresponding to the measurement event, which is not limited in this application.

For example, the terminal device may determine whether the target cell satisfies the handover condition based on the cell handover condition.

Optionally, the source cell reconfiguration message may be some reconfiguration messages sent by the source network device to the terminal device. For example, the source network device adds some configuration information entered when sending the RRC connection reconfiguration information. The configuration information of may be the configuration related to the conditional switching command, or it may not be related to the conditional switching command. This application does not limit the specific content of the source cell reconfiguration message.

Optionally, in the embodiment of the present application, the source cell reconfiguration message is configured by the source network device, the target cell handover configuration is configured by the target network device, and the cell handover condition is the source network device or the target network device Configured.

Optionally, step S220 may specifically:

The terminal device determines the target cell based on part or all of the configured first information; or,

The terminal device initiates the RRC connection re-establishment process; or,

The terminal device sends first instruction information to the source network device, where the first instruction information is used to instruct the source network device and/or the target network device to configure the first information for the terminal device; or,

The terminal device selects a target cell that meets the access conditions for access.

It should be noted that the above access conditions may be cell selection or cell reselection conditions.

The terminal device determines the target cell based on part or all of the configured first information. It can also be understood that the terminal device monitors the target cell based on part or all of the configured first information.

Assuming that the RRC connection reconfiguration information includes the target cell handover configuration and the cell handover condition, the target cell handover configuration and the cell handover condition are both configured by the target network device. If the type of the first information includes the target cell handover configuration, and/or the type of the first information includes the cell handover condition, the terminal device determines the target cell based on part or all of the configured first information.

Assuming that the RRC connection reconfiguration information includes the target cell handover configuration and the cell handover condition, the target cell handover configuration is configured by the target network device, and the cell handover condition is configured by the source network device. If the type of the first information includes the target cell handover configuration, the terminal device determines the target cell based on part or all of the configured first information; if the type of the first information includes the cell handover condition, the terminal device Initiate the RRC connection re-establishment process, or the terminal device sends first instruction information to the source network device, where the first instruction information is used to instruct the source network device and/or the target network device to configure the first information.

Assuming that the RRC connection reconfiguration information includes the target cell handover configuration, the cell handover condition, and the source cell reconfiguration message, the cell handover condition and the target cell handover configuration are configured by the target network device, and the source cell reconfiguration message is the source Network equipment configuration. If the type of the first information includes the target cell handover configuration, and/or if the type of the first information includes the cell handover condition, the terminal device determines the target cell based on part or all of the configured first information; If the type of the first information includes the source cell reconfiguration message, the terminal device initiates an RRC connection re-establishment procedure, or the terminal device selects a target cell that meets the access condition for access.

Assuming that the RRC connection reconfiguration information includes the target cell handover configuration, the cell handover condition, and the source cell reconfiguration message, the target cell handover configuration is configured by the target network device, and the cell handover condition and the source cell reconfiguration message are the source Network equipment configuration. If the type of the first information includes the target cell handover configuration, the terminal device determines the target cell based on part or all of the configured first information; if the type of the first information includes the cell handover condition, the terminal device Initiate the RRC connection re-establishment process, or the terminal device sends first instruction information to the source network device, where the first instruction information is used to instruct the source network device and/or the target network device to configure the first Information; or, if the type of the first information includes the source cell reconfiguration message, the terminal device initiates an RRC connection re-establishment process, or the terminal device selects a target cell that meets the access conditions for access.

Optionally, in this embodiment of the present application, the terminal device may determine the target cell based on part or all of the configured first information:

If the first information includes first configuration information, the first configuration information is used to indicate the conditional handover configuration and/or cell handover condition of at least one target cell is added, and the terminal device cannot comply with the first configuration information, the terminal The device ignores the RRC connection reconfiguration information and/or performs target cell discrimination based on the second information corresponding to all target cells that have been configured; and/or,

If the first information further includes second configuration information, the second configuration information is used to instruct to delete the configured conditional handover configuration and/or cell handover condition of at least one target cell, and the terminal device cannot comply with the second configuration information , The terminal device deletes the conditional handover command of the at least one target cell, and performs target cell discrimination based on the second information corresponding to the remaining configured target cells; and/or,

If the first information further includes third configuration information, the third configuration information is used to instruct to modify or update the configured conditional switching configuration and/or cell switching condition of at least one target cell, and the terminal device cannot comply with the modification or update The conditional handover command of the first target cell, the conditional handover command of the first target cell is part or all of the conditional handover command of the at least one target cell, the terminal device deletes the conditional handover command of the first target cell, and based on The second information corresponding to the remaining configured target cells performs target cell discrimination; and/or,

The terminal device ignores the first information, and performs target cell discrimination based on the second information corresponding to all the configured target cells.

Optionally, the type of the second information includes the target cell handover configuration and/or the cell handover condition.

It should be noted that after the source network device sends the RRC connection reconfiguration information to the terminal device, if it does not receive the terminal device's reconfiguration complete message, and does not send a Conditional Handover (CHO) update to the target network device Or modify the confirmation message, the target network device continues to use the modified or updated conditional switching configuration and/or cell switching conditions, and the terminal device uses the modified or updated conditional switching configuration and/or cell switching conditions and monitors the configured target cell , And use the modified or updated previous conditional switching configuration and/or cell switching conditions to perform CHO access when the conditions are met.

Optionally, in this embodiment of the present application, the terminal device initiating the RRC connection re-establishment procedure may specifically be:

The terminal device initiates an RRC connection re-establishment process according to the source of the first information, where the source of the first information includes that the first information is configured by the source network device and/or the first information is configured by the target network device.

Optionally, in this embodiment of the present application, the foregoing target network device may include at least one network device.

It should be noted that, in the embodiment of the present application, the source network device may be a network device serving the source cell, and the target network device may be a network device serving the target cell.

Therefore, in the embodiment of the present application, if the terminal device cannot comply with the first information in the RRC connection reconfiguration information, the terminal device responds according to the source of the first information and/or the type of the first information, so as to avoid failure to comply with the RRC connection. When the first information in the information is reconfigured, the terminal device directly initiates the RRC connection re-establishment procedure, which also avoids the interruption of data transmission caused by the unnecessary RRC connection re-establishment procedure.

FIG. 5 shows a schematic block diagram of a terminal device 300 according to an embodiment of the present application. As shown in FIG. 5, the terminal device 300 includes:

The communication unit 310 is configured to receive RRC connection reconfiguration information, where the RRC connection reconfiguration information includes first information;

The processing unit 320 is configured to, if the terminal device cannot comply with the first information in the RRC connection reconfiguration information, respond according to the source of the first information and/or the type of the first information.

Optionally, the source of the first information includes that the first information is configured by the source network device and/or the first information is configured by the target network device.

Optionally, the type of the first information includes at least one of a target cell handover configuration, a cell handover condition, and a source cell reconfiguration message.

Optionally, the RRC connection reconfiguration information includes at least one of a target cell handover configuration, a cell handover condition, and a source cell reconfiguration message, where the source cell reconfiguration message is configured by the source network device, and the target cell The handover configuration is configured by the target network device, and the cell handover condition is configured by the source network device or the target network device.

Optionally, the processing unit 320 is specifically configured to:

Perform target cell discrimination based on part or all of the configured first information; or,

Initiate the RRC connection re-establishment process; or,

Control the communication unit 310 to send first instruction information to the source network device, where the first instruction information is used to instruct the source network device and/or the target network device to configure the first information for the terminal device; or,

Select a target cell that meets the access conditions for access.

Optionally, the processing unit 320 is specifically configured to:

If the first information includes first configuration information, the first configuration information is used to instruct to add a conditional handover configuration and/or cell handover condition of at least one target cell, and the terminal device cannot comply with the first configuration information, and the first configuration information is ignored. RRC connection reconfiguration information and/or target cell discrimination based on second information corresponding to all target cells that have been configured; and/or,

If the first information further includes second configuration information, the second configuration information is used to instruct to delete the configured conditional handover configuration and/or cell handover condition of at least one target cell, and the terminal device cannot comply with the second configuration information , Delete the conditional handover command of the at least one target cell, and perform target cell discrimination based on the second information corresponding to the remaining configured target cells; and/or,

If the first information further includes third configuration information, the third configuration information is used to instruct to modify or update the configured conditional switching configuration and/or cell switching condition of at least one target cell, and the terminal device cannot comply with the modification or update The conditional handover command of the first target cell, the conditional handover command of the first target cell is part or all of the conditional handover command of the at least one target cell, the conditional handover command of the first target cell is deleted, and the The second information corresponding to the configured target cell performs target cell discrimination; and/or,

The first information is ignored, and the target cell is determined based on the second information corresponding to all target cells that have been configured.

Optionally, the processing unit 320 is specifically configured to:

The RRC connection re-establishment process is initiated according to the source of the first information, where the source of the first information includes that the first information is configured by the source network device and/or the first information is configured by the target network device.

Optionally, the cell handover condition is used for the terminal device to make a cell handover decision.

Optionally, the configuration of the cell handover condition includes at least one measurement event configuration.

C-RNTI, the security algorithm identification of the target network equipment, a dedicated random access preamble, access parameters, and system information blocks.

Optionally, the target network device includes at least one network device respectively serving at least one target cell.

Optionally, the communication unit 310 is specifically configured to:

Receive the RRC connection reconfiguration information sent by the source network device.

Optionally, the RRC connection reconfiguration information is used to carry a conditional switching command, and/or the RRC connection reconfiguration information is used to configure, update, modify, or delete the conditional switching command.

It should be understood that the terminal device 300 according to the embodiment of the present application may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 300 are to implement the method shown in FIG. 4, respectively. For the sake of brevity, the corresponding process of the terminal equipment in 200 will not be repeated here.

FIG. 6 is a schematic structural diagram of a communication device 400 provided by an embodiment of the present application. The communication device 400 shown in FIG. 6 includes a processor 410, and the processor 410 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 6, the communication device 400 may further include a memory 420. The processor 410 may call and run a computer program from the memory 420 to implement the method in the embodiment of the present application.

The memory 420 may be a separate device independent of the processor 410, or may be integrated in the processor 410.

Optionally, as shown in FIG. 6, the communication device 400 may further include a transceiver 430, and the processor 410 may control the transceiver 430 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.

The transceiver 430 may include a transmitter and a receiver. The transceiver 430 may further include an antenna, and the number of antennas may be one or more.

Optionally, the communication device 400 may specifically be a network device or a base station in an embodiment of the present application, and the communication device 400 may implement the corresponding process implemented by the network device or the base station in each method of the embodiment of the present application. For brevity, This will not be repeated here.

Optionally, the communication device 400 may specifically be a mobile terminal/terminal device of an embodiment of the present application, and the communication device 400 may implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application. For simplicity , I won’t repeat it here.

Fig. 7 is a schematic structural diagram of a device according to an embodiment of the present application. The apparatus 500 shown in FIG. 7 includes a processor 510, and the processor 510 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 7, the apparatus 500 may further include a memory 520. The processor 510 may call and run a computer program from the memory 520 to implement the method in the embodiment of the present application.

The memory 520 may be a separate device independent of the processor 510, or may be integrated in the processor 510.

Optionally, the device 500 may further include an input interface 530. The processor 510 can control the input interface 530 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

Optionally, the device 500 may further include an output interface 540. The processor 510 can control the output interface 540 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

Optionally, the device can be applied to the network equipment or the base station in the embodiments of the present application, and the device can implement the corresponding procedures implemented by the network equipment or the base station in the various methods of the embodiments of the present application. Repeat.

Optionally, the device can be applied to the mobile terminal/terminal device in the embodiment of this application, and the device can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of this application. For brevity, here is No longer.

Optionally, the device mentioned in the embodiment of the present application may also be a chip. For example, it can be a system-level chip, a system-on-chip, a system-on-chip, or a system-on-chip.

FIG. 8 is a schematic block diagram of a communication system 600 according to an embodiment of the present application. As shown in FIG. 8, the communication system 600 includes a terminal device 610 and a network device 620.

Wherein, the terminal device 610 can be used to implement the corresponding function implemented by the terminal device in the above method, and the network device 620 can be used to implement the corresponding function implemented by the network device or the base station in the above method. Repeat it again.

It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method embodiments may be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The aforementioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM) ) And Direct Rambus RAM (DR RAM). It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to, these and any other suitable types of memories.

It should be understood that the foregoing memory is exemplary but not restrictive. For example, the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiment of the present application is intended to include but not limited to these and any other suitable types of memory.

The embodiment of the present application also provides a computer-readable storage medium for storing computer programs.

Optionally, the computer-readable storage medium can be applied to the network device or base station in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device or the base station in each method of the embodiment of the present application, for It's concise, so I won't repeat it here.

Optionally, the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application , For the sake of brevity, I will not repeat it here.

The embodiments of the present application also provide a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the network device or base station in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device or the base station in each method of the embodiment of the present application, for the sake of brevity , I won’t repeat it here.

Optionally, the computer program product can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, For brevity, I won't repeat them here.

The embodiment of the present application also provides a computer program.

Optionally, the computer program can be applied to the network device or base station in the embodiment of the present application. When the computer program runs on the computer, the computer is caused to execute the corresponding implementation of the network device or the base station in each method of the embodiment of the present application. For the sake of brevity, the process will not be repeated here.

Optionally, the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application. When the computer program runs on the computer, the computer executes each method in the embodiment of the present application. For the sake of brevity, the corresponding process will not be repeated here.

A person of ordinary skill in the art may be aware that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the above-described system, device, and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, the functional units in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. In response to this understanding, the technical solution of this application essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

A wireless communication method, characterized by comprising:

The terminal device receives radio resource control RRC connection reconfiguration information, where the RRC connection reconfiguration information includes the first information;

If the terminal device cannot comply with the first information in the RRC connection reconfiguration information, the terminal device responds according to the source of the first information and/or the type of the first information.
The method according to claim 1, wherein the source of the first information includes that the first information is configured by a source network device and/or the first information is configured by a target network device.
The method according to claim 1 or 2, wherein the type of the first information includes at least one of a target cell handover configuration, a cell handover condition, and a source cell reconfiguration message.
The method according to any one of claims 1 to 3, wherein the RRC connection reconfiguration information includes at least one of a target cell handover configuration, a cell handover condition, and a source cell reconfiguration message, wherein: The source cell reconfiguration message is configured by the source network device, the target cell handover configuration is configured by the target network device, and the cell handover condition is configured by the source network device or the target network device.
The method according to claim 4, wherein the terminal device responds according to the source of the first information and/or the type of the first information, comprising:

The terminal device determines the target cell based on part or all of the configured first information; or,

The terminal device initiates an RRC connection re-establishment process; or,

Sending, by the terminal device, first instruction information to the source network device, where the first instruction information is used to instruct the source network device and/or the target network device to configure the first information for the terminal device; or,

The terminal device selects a target cell that meets the access conditions for access.
The method according to claim 5, wherein the terminal device determines the target cell based on part or all of the configured first information, comprising:

If the first information includes first configuration information, the first configuration information is used to indicate that at least one new target cell conditional handover configuration and/or cell handover condition is added, and the terminal device cannot comply with the first configuration Information, the terminal device ignores the RRC connection reconfiguration information and/or performs target cell discrimination based on the second information corresponding to all target cells that have been configured; and/or,

If the first information further includes second configuration information, the second configuration information is used to instruct to delete the configured conditional handover configuration and/or cell handover condition of at least one target cell, and the terminal device cannot comply with the Second configuration information, the terminal device deletes the conditional handover command of the at least one target cell, and performs target cell discrimination based on the second information corresponding to the remaining configured target cells; and/or,

If the first information further includes third configuration information, the third configuration information is used to instruct to modify or update the configured conditional handover configuration and/or cell handover conditions of at least one target cell, and the terminal device cannot comply with Modify or update the conditional handover command of the first target cell, where the conditional handover command of the first target cell is part or all of the conditional handover command of the at least one target cell, and the terminal device deletes the first target cell Conditional handover command, and target cell discrimination based on the second information corresponding to the remaining configured target cells; and/or,

The terminal device ignores the first information, and performs target cell discrimination based on the second information corresponding to all the configured target cells.
The method according to claim 6, wherein the type of the second information includes a target cell handover configuration and/or a cell handover condition.
The method according to any one of claims 5 to 7, wherein the terminal device initiating an RRC connection re-establishment process comprises:

The terminal device initiates an RRC connection re-establishment procedure according to the source of the first information, where the source of the first information includes whether the first information is configured by the source network device and/or the first information is configured by the source network device Target network device configuration.
The method according to any one of claims 4 to 8, wherein the cell handover condition is used for the terminal device to make a cell handover decision.
The method according to claim 9, wherein the configuration of the cell handover condition includes at least one measurement event configuration.
The method according to any one of claims 4 to 10, wherein the target cell handover configuration includes at least one of the following:

The cell radio network temporary identifier C-RNTI, the security algorithm identifier of the target network device, a dedicated random access preamble, access parameters, and system information blocks.
The method according to any one of claims 4 to 11, wherein the target network device comprises at least one network device.
The method according to any one of claims 1 to 12, wherein the terminal device receiving RRC connection reconfiguration information comprises:

The terminal device receives the RRC connection reconfiguration information sent by the source network device.
The method according to any one of claims 1 to 13, wherein the RRC connection reconfiguration information is used to carry conditional switching commands, and/or the RRC connection reconfiguration information is used for conditional switching commands Configure, update, modify or delete.
A terminal device, characterized in that it comprises:

A communication unit, configured to receive radio resource control RRC connection reconfiguration information, where the RRC connection reconfiguration information includes first information;

The processing unit is configured to respond according to the source of the first information and/or the type of the first information if the terminal device cannot comply with the first information in the RRC connection reconfiguration information.
The terminal device according to claim 15, wherein the source of the first information includes that the first information is configured by a source network device and/or the first information is configured by a target network device.
The terminal device according to claim 15 or 16, wherein the type of the first information includes at least one of a target cell handover configuration, a cell handover condition, and a source cell reconfiguration message.
The terminal device according to any one of claims 15 to 17, wherein the RRC connection reconfiguration information includes at least one of a target cell handover configuration, a cell handover condition, and a source cell reconfiguration message, wherein The source cell reconfiguration message is configured by the source network device, the target cell handover configuration is configured by the target network device, and the cell handover condition is configured by the source network device or the target network device.
The terminal device according to claim 18, wherein the processing unit is specifically configured to:

Perform target cell discrimination based on part or all of the configured first information; or,

Initiate the RRC connection re-establishment process; or,

Control the communication unit to send first instruction information to the source network device, where the first instruction information is used to instruct the source network device and/or the target network device to configure the first information for the terminal device ;or,

Select a target cell that meets the access conditions for access.
The terminal device according to claim 19, wherein the processing unit is specifically configured to:

If the first information includes first configuration information, the first configuration information is used to indicate that at least one new target cell conditional handover configuration and/or cell handover condition is added, and the terminal device cannot comply with the first configuration Information, ignore the RRC connection reconfiguration information and/or perform target cell discrimination based on the second information corresponding to all target cells that have been configured; and/or,

If the first information further includes second configuration information, the second configuration information is used to instruct to delete the configured conditional handover configuration and/or cell handover condition of at least one target cell, and the terminal device cannot comply with the Second configuration information, deleting the conditional handover command of the at least one target cell, and performing target cell discrimination based on the second information corresponding to the remaining configured target cells; and/or,

If the first information further includes third configuration information, the third configuration information is used to instruct to modify or update the configured conditional handover configuration and/or cell handover conditions of at least one target cell, and the terminal device cannot comply with Modify or update the conditional handover command of the first target cell, where the conditional handover command of the first target cell is part or all of the conditional handover command of the at least one target cell, and delete the conditional handover command of the first target cell , And perform target cell discrimination based on the second information corresponding to the remaining configured target cells; and/or,

The first information is ignored, and the target cell is determined based on the second information corresponding to all target cells that have been configured.
The terminal device according to claim 20, wherein the type of the second information includes a target cell handover configuration and/or a cell handover condition.
The terminal device according to any one of claims 19 to 21, wherein the processing unit is specifically configured to:

The RRC connection re-establishment procedure is initiated according to the source of the first information, where the source of the first information includes that the first information is configured by the source network device and/or the first information is configured by the target network device .
The terminal device according to any one of claims 19 to 22, wherein the cell handover condition is used for the terminal device to make a cell handover decision.
The terminal device according to claim 23, wherein the configuration of the cell handover condition includes at least one measurement event configuration.
The terminal device according to any one of claims 19 to 24, wherein the target cell handover configuration includes at least one of the following:

The cell radio network temporary identifier C-RNTI, the security algorithm identifier of the target network device, a dedicated random access preamble, access parameters, and system information blocks.
The terminal device according to any one of claims 19 to 25, wherein the target network device comprises at least one network device.
The terminal device according to any one of claims 15 to 26, wherein the communication unit is specifically configured to:

Receiving the RRC connection reconfiguration information sent by the source network device.
The terminal device according to any one of claims 15 to 27, wherein the RRC connection reconfiguration information is used for carrying conditional switching commands, and/or the RRC connection reconfiguration information is used for conditional switching commands Configuration, update, modification or deletion of
A terminal device, characterized by comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute as claimed in claims 1 to 14 Any one of the methods.
A device, characterized by comprising: a processor, configured to call and run a computer program from a memory, so that a device installed with the device executes the method according to any one of claims 1 to 14.
A computer-readable storage medium, characterized in that it is used to store a computer program that enables a computer to execute the method according to any one of claims 1 to 14.
A computer program product, characterized by comprising computer program instructions, which cause a computer to execute the method according to any one of claims 1 to 14.
A computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 14.