CN113519183A

CN113519183A - Wireless communication method and terminal device

Info

Publication number: CN113519183A
Application number: CN201980092877.9A
Authority: CN
Inventors: 尤心
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2021-10-19
Anticipated expiration: 2039-08-12
Also published as: WO2021026747A1; CN113519183B

Abstract

The embodiment of the application provides a wireless communication method, a terminal device and a network device, wherein if the terminal device cannot comply with first information in 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 that the terminal device is prevented from directly initiating an RRC connection reestablishment process when the first information in the RRC connection reconfiguration information cannot be complied with, and data transmission interruption caused by an unnecessary RRC connection reestablishment process is also avoided. The wireless communication method includes: the method comprises the steps that terminal equipment receives RRC connection reconfiguration information, wherein the RRC connection reconfiguration information comprises first information; if the terminal device cannot comply with the first information in the RRC connection reconfiguration message, the terminal device responds according to the source of the first information and/or the type of the first information.

Description

Wireless communication method and terminal device

Technical Field

The present embodiments relate to the field of communications, and in particular, to a wireless communication method and a terminal device.

Background

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

Disclosure of Invention

The embodiment of the application provides a wireless communication method and terminal equipment, which can realize a switching process based on condition triggering.

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

the method comprises the steps that terminal equipment receives Radio Resource Control (RRC) connection reconfiguration information, wherein the RRC connection reconfiguration information comprises first information;

if the terminal device cannot comply with the first information in the RRC connection reconfiguration message, 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 configured to perform the method in the first aspect or each implementation manner thereof.

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

In a third aspect, a terminal device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, and executing the method in the first aspect or each implementation manner thereof.

In a fourth aspect, an apparatus is provided for implementing the method in each implementation manner in the first aspect.

Specifically, the apparatus includes: a processor configured to call and run the computer program from the memory, so that the device on which the apparatus is installed performs the method in the implementations of the first aspect.

In a fifth aspect, a computer-readable storage medium is provided for storing a computer program, which causes a computer to execute the method in the implementation manners in the first aspect.

A sixth aspect provides a computer program product comprising computer program instructions for causing a computer to perform the method of the implementations of the first aspect.

In a seventh aspect, a computer program is provided, which, when run on a computer, causes the computer to perform the method in the implementations of the first aspect.

Through the technical scheme, if the terminal equipment cannot comply with the first information in the RRC connection reconfiguration information, the terminal equipment responds according to the source of the first information and/or the type of the first information, so that the situation that the terminal equipment directly initiates an RRC connection reestablishment process when the first information in the RRC connection reconfiguration information cannot be complied with is avoided, and data transmission interruption caused by an unnecessary RRC connection reestablishment process is also avoided.

Drawings

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

Fig. 2 is a schematic diagram of a switching process based on an Xn interface according to an embodiment of the present application.

Fig. 3 is a schematic diagram of a handover procedure based on condition triggering according to an embodiment of the present application.

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

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

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

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without making any creative effort with respect to the embodiments in the present application belong to the protection scope of the present application.

The embodiment of the application can be applied to various communication systems, such as: global System for Mobile communications (GSM) System, Code Division Multiple Access (CDMA) System, Wideband Code Division Multiple Access (WCDMA) System, General Packet Radio Service (GPRS), Long Term Evolution (Long Term Evolution, LTE) System, LTE-a System, New Radio (NR) System, Evolution System of NR System, LTE-a System over unlicensed spectrum, NR (NR-b) System, UMTS (Universal Mobile telecommunications System), UMTS (UMTS) System, WLAN-b System over unlicensed spectrum, WiFi-b System, Wireless Local Area Network (WLAN) System, Wireless Local Area network (WiFi) System, GPRS (General Packet Radio Service, GPRS) System, GPRS (GPRS) System, LTE-b System, LTE-a System, NR System, LTE-b System over unlicensed spectrum, and LTE-b System over unlicensed spectrum, Next generation communication systems or other communication systems, etc.

Generally, conventional Communication systems support a limited number of connections and are easy to implement, however, with the development of Communication technology, mobile Communication systems will support not only conventional Communication, but also, for example, Device-to-Device (D2D) Communication, Machine-to-Machine (M2M) Communication, Machine Type Communication (MTC), and Vehicle-to-Vehicle (V2V) Communication, and the embodiments of the present application can also be applied to these Communication systems.

Optionally, the communication system in the embodiment of the present application may be applied to a Carrier Aggregation (CA) scenario, may also be applied to a Dual Connectivity (DC) scenario, and may also be applied to an independent (SA) networking scenario.

The frequency spectrum of the application is not limited in the embodiment of the present application. For example, the embodiments of the present application may be applied to a licensed spectrum and may also be applied to an unlicensed spectrum.

Illustratively, a 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 referred to as a communication terminal, a terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area.

Fig. 1 exemplarily shows one network device and two terminal devices, and optionally, the communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device, which is not limited in this embodiment of the present application.

Optionally, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that a device having a communication function in a network/system in the embodiments of the present application may be referred to as a communication device. 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 having a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above and are not described herein again; the communication device may also include other devices in the communication system 100, such as other network entities, for example, a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The embodiments of the present application are described in conjunction with a terminal device and a network device, where: a terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User Equipment, etc. The terminal device may be a Station (ST) in a WLAN, and may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, and a next generation communication system, for example, a terminal device in an NR Network or a terminal device in a future evolved Public Land Mobile Network (PLMN) Network, and the like.

By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable equipment can also be called wearable intelligent equipment, is the general term of applying wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

The network device may be a device for communicating with a mobile device, and the network device may be an Access Point (AP) in a WLAN, a Base Station (BTS) in GSM or CDMA, a Base Station (NodeB, NB) in WCDMA, an evolved Node B (eNB, eNodeB) in LTE, a relay Station or an Access Point, or a network device or a Base Station (gNB) in a vehicle-mounted device, a wearable device, and an NR network, or a network device in a PLMN network for future evolution.

In this embodiment of the present application, a network device provides a service for a cell, and a terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device (for example, a base station), and the cell may belong to a macro base station or a base station corresponding to a Small cell (Small cell), where the Small cell may include: urban cells (Metro cells), Micro cells (Micro cells), Pico cells (Pico cells), Femto cells (Femto cells), and the like, and the small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-rate data transmission services.

Similar to the LTE system, the NR system supports a handover procedure of a connected terminal device. When a user using network service moves from one cell to another cell, or due to the adjustment of wireless transmission service load, the activation of operation maintenance, equipment failure, etc., in order to ensure the communication continuity and the quality of service, the system transfers the communication link between the user and the source cell to a new cell, i.e., performs a handover procedure.

Specifically, the Xn interface switching process can be, for example, as shown in fig. 2, and the whole switching process is divided into the following three stages:

first stage, switch preparation (1 to 5)

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

In step 2, the source base station evaluates the measurement result reported by the terminal device, and determines whether to trigger the handover.

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

In step 4, after receiving the handover request sent by the source base station, the target base station may 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 acknowledgement message to the source base station, and returns an admission result and radio resource configuration information in the target base station to the source base station. At this point, the handover preparation phase is complete.

Second stage, switching execution (6 to 8)

In step 6, after receiving the handover request acknowledge message of the target base station, the source base station may trigger the terminal device to perform handover.

In 7, the source base station may forward buffered data, on-going packets, system sequence numbers of the data, etc. to the target base station. Also, the target base station may buffer data received from the source base station

In addition, the terminal equipment 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 handover execution phase is complete.

The third stage, switching is completed (209 to 212)

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

In 10, after receiving the path switch request from the target base station, the AMF performs path switch with a User Plane Function (UPF) to clear the path flag of the User Plane of the source base station.

In 11, after the path switching is completed, the AMF may transmit a path switching acknowledgement message to the target base station.

In 12, the target base station sends a terminal device context release message to the source base station, informs the source base station of successful handover, and triggers the context of the terminal device of the source base station. At this point, the handover is completed.

In the embodiment of the present application, a conditional handover (conditional handover) based on conditional triggering can solve the problems of frequent handover and easy failure of handover in a high-speed mobile scenario and a high-frequency deployment scenario, and the basic principle is as follows: the terminal device executes the switching to the target cell according to the pre-configured switching command (namely triggering the random access process and sending the switching completion message) when evaluating the condition trigger related to the target cell according to the condition configured by the network device, thereby avoiding the problem that the measurement report cannot be sent or the switching command cannot be sent when the high-speed mobile enters the area with poor coverage.

Specifically, the handover procedure triggered based on the condition may be as shown in fig. 2, where, in step 21, the source base station sends measurement configuration information to the terminal device; step 22, the terminal device reports the measurement based on the measurement configuration; step 23, exchanging handover preparation information between the source base station and the target base station; step 24, the source base station sends a Conditional Handover Command (CHO CMD) to the terminal equipment, wherein the Conditional Handover Command carries a Handover condition such as a cell or a beam; and step 25, when the conditional handover command is satisfied, the terminal equipment realizes the synchronization with the target base station.

It should be noted that the conditional handover command includes configuration information of the target cell and a cell execution condition, where the cell handover condition is configured by the source base station, and the source base station adds the configured cell handover condition to the RRC reconfiguration message and sends the RRC reconfiguration message to the terminal device.

It should be noted that, when receiving the RRC reconfiguration message, the terminal device may evaluate whether to comply with the RRC reconfiguration message, and if the capability of the terminal device cannot meet the RRC reconfiguration message or cannot correctly decode the RRC reconfiguration message, the terminal device may initiate a connection reestablishment procedure.

However, for the handover procedure based on condition triggering, when the terminal device receives a conditional handover command (RRC reconfiguration message), the terminal device does not perform the handover immediately, the terminal device maintains a connection with the source cell and evaluates the channel quality of the target cell in the conditional handover command, and when the conditional handover command cannot be complied (complied with), the terminal device initiates RRC connection reestablishment, which may cause additional data interruption.

Based on the foregoing technical problem, an embodiment of the present application provides a wireless communication method, where if a terminal device cannot comply with first information in RRC connection reconfiguration information, the terminal device responds according to a source of the first information and/or a type of the first information, so as to avoid that the terminal device directly initiates an RRC connection reestablishment procedure when the terminal device cannot comply with the first information in the RRC connection reconfiguration information, and also avoid data transmission interruption caused by an unnecessary RRC connection reestablishment procedure.

The following describes in detail a wireless communication scheme designed to address the above technical problems.

Fig. 4 is a schematic flow chart of a wireless communication method 200 according to an embodiment of the present application, and as shown in fig. 4, the method 200 may include some or all of the following:

s210, the terminal equipment receives RRC connection reconfiguration information, wherein the RRC connection reconfiguration information comprises first information;

s220, if the terminal device cannot comply with the first information in the RRC connection reconfiguration message, 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 the terminal device cannot comply with the first information in the RRC connection reconfiguration message, which may 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 this embodiment of the present application, the RRC connection reconfiguration information is used to carry a conditional handover command, and/or the RRC connection reconfiguration information is used to configure, update, modify, or delete the conditional handover command. I.e. the RRC connection reconfiguration information is configuration information for cell handover.

It should be noted that, in a case that the terminal device cannot comply (comply with) the first information in the RRC connection reconfiguration information, the terminal device does not necessarily initiate the RRC connection reestablishment procedure, but responds according to the source of the first information and/or the type of the first information, so that it is possible to avoid that the terminal device directly initiates the RRC connection reestablishment procedure when the first information in the RRC connection reconfiguration information cannot be complied with, and avoid interruption of data transmission due to an unnecessary RRC connection reestablishment procedure.

For example, the response may be to make a target cell determination based on some or all of the configured first information. For another example, the response may be to send 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. As another example, the response may be to select a target cell satisfying the access condition for access. As 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 a source network device and/or that the first information is configured by a target network device. That is, a 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 this embodiment of the application, configuring, by the target network device, another part of information carried in the RRC connection reconfiguration information may be understood as: the target network device sends the other part of the configured information to the source network device through a transparent (transparent) container (container), and then the source network device encapsulates the other part of the configured information in the RRC connection reconfiguration information. I.e. the source network device cannot modify the further part of information. Of course, the source network device may also add a part of the configuration information into the container, and then encapsulate a part of the configuration information and another part of the configuration information of the target network device in the RRC connection reconfiguration information.

For example, the target network device configures target cell switching configuration, and then sends the target cell switching configuration to the source network device through transparent transmission container; the source network device configures the cell switching condition, and adds the cell switching condition in the container, and finally, the source network device encapsulates the target cell switching configuration and the cell switching 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 a target cell handover configuration, a cell handover condition, and a source cell reconfiguration message, and the first information may include part or all of configuration information in the target cell handover configuration, and/or the first information may include part or all of information in the cell handover condition, and/or the first information may include part or all of 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 Identity (C-RNTI), security algorithm Identity of the target Network device, dedicated random access preamble, access parameters, and System Information Block (SIB).

Optionally, the cell switching condition is used for the terminal device to perform cell switching determination. For example, the configuration of the cell switching condition corresponds to at least one measurement object configuration and/or measurement report configuration. Of course, the cell switching condition may also include a measurement event and a threshold 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 for the terminal device, for example, some configuration information that the source network device adds when sending the RRC connection reconfiguration information, where the added configuration information may be a configuration related to the conditional handover command or may not be related to the conditional handover command. The present application does not limit the specific content of the source cell reconfiguration message.

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

Optionally, step S220 may specifically include:

the terminal equipment judges a target cell based on the configured part or all of the first information; alternatively, the first and second electrodes may be,

the terminal equipment initiates an RRC connection reestablishment process; alternatively, the first and second electrodes may be,

the terminal device sends first indication information to the source network device, wherein the first indication information is used for indicating the source network device and/or the target network device to configure the first information for the terminal device; alternatively, the first and second electrodes may be,

the terminal equipment selects a target cell meeting the access condition for access.

It should be noted that the access condition may be a cell selection condition or a cell reselection condition.

The terminal device performs target cell discrimination based on the configured part or all of the first information, which may also be understood as that the terminal device performs target cell monitoring based on the configured part or all of the first information.

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

Assuming that the RRC connection reconfiguration message 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 comprises the target cell switching configuration, the terminal equipment judges 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 initiates an RRC connection reestablishment procedure, or the terminal device sends first indication information to the source network device, where the first indication information is used to indicate the source network device and/or the target network device to configure the first information for the terminal device.

Assume that the RRC connection reconfiguration message includes the target cell handover configuration, the cell handover condition, and a source cell reconfiguration message, where the cell handover condition and the target cell handover configuration are configured by the target network device, and the source cell reconfiguration message is configured by the source network device. If the type of the first information comprises the target cell switching configuration, and/or if the type of the first information comprises the cell switching condition, the terminal equipment judges the target cell based on part of or all configured first information; if the type of the first information includes the source cell reconfiguration message, the terminal device initiates an RRC connection reestablishment procedure, or the terminal device selects a target cell meeting an access condition for access.

Assuming that the RRC connection reconfiguration message includes the target cell handover configuration, the cell handover condition, and a source cell reconfiguration message, where the target cell handover configuration is configured by the target network device, and the cell handover condition and the source cell reconfiguration message are configured by the source network device. If the type of the first information comprises the target cell switching configuration, the terminal equipment judges the target cell based on part or all of the configured first information; if the type of the first information includes the cell switching condition, the terminal device initiates an RRC connection reestablishment procedure, or the terminal device sends first indication information to the source network device, where the first indication information is used to indicate the source network device and/or the target network device to configure the first information for the terminal device; or, if the type of the first information includes the source cell reconfiguration message, the terminal device initiates an RRC connection reestablishment procedure, or the terminal device selects a target cell meeting an access condition for access.

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

if the first information includes first configuration information, the first configuration information is used for indicating condition switching configuration and/or cell switching conditions of at least one newly added target cell, and the terminal device cannot comply with the first configuration information, and the terminal device ignores the RRC connection reconfiguration information and/or performs target cell judgment based on second information corresponding to all configured target cells; and/or the presence of a gas in the gas,

if the first information further includes second configuration information, the second configuration information is used for indicating that the configured conditional handover configuration and/or cell handover condition of at least one target cell is deleted, 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 judgment based on the second information corresponding to the remaining configured target cells; and/or the presence of a gas in the gas,

if the first information further includes third configuration information, the third configuration information is used to indicate that the configured conditional handover configuration and/or cell handover condition of the at least one target cell is modified or updated, and the terminal device cannot comply with the conditional handover command for modifying or updating the first target cell, where the conditional handover command of the first target cell is part or all of the conditional handover commands of the at least one target cell, the terminal device deletes the conditional handover command of the first target cell, and performs target cell determination based on the remaining second information corresponding to the configured target cell; and/or the presence of a gas in the gas,

and the terminal equipment ignores the first information and judges the target cell based on second information corresponding to all configured target cells.

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

It should be noted that, after the source network device sends the RRC connection reconfiguration information to the terminal device, if the reconfiguration complete message of the terminal device is not received and a Conditional Handover (CHO) update or modification confirm message is not sent to the target network device, the target network device continues to use the Conditional Handover configuration and/or the cell Handover condition before modification or update, and the terminal device uses the Conditional Handover configuration and/or the cell Handover condition before modification or update and monitors the configured target cell, and uses the Conditional Handover configuration and/or the cell Handover condition before modification or update to perform CHO access when the condition is satisfied.

Optionally, in this embodiment of the present application, the initiating, by the terminal device, an RRC connection reestablishment procedure specifically may be:

the terminal device initiates an RRC connection reestablishment procedure according to a source of the first information, where the source of the first information includes that the first information is configured by a source network device and/or that the first information is configured by a target network device.

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

It should be noted that, in this embodiment, the source network device may be a network device serving a source cell, and the target network device may be a network device serving a 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 that the terminal device directly initiates the RRC connection reestablishment procedure when the terminal device cannot comply with the first information in the RRC connection reconfiguration information, and avoid interruption of data transmission due to an unnecessary RRC connection reestablishment procedure.

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

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

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

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

Optionally, the processing unit 320 is specifically configured to:

performing target cell judgment based on the configured part or all of the first information; alternatively, the first and second electrodes may be,

initiating an RRC connection reestablishment process; alternatively, the first and second electrodes may be,

controlling the communication unit 310 to send first indication information to the source network device, where the first indication information is used to indicate the source network device and/or the target network device to configure the first information for the terminal device; alternatively, the first and second electrodes may be,

and selecting a target cell meeting the access condition 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 for indicating condition switching configuration and/or cell switching conditions of at least one newly added target cell, and the terminal device cannot comply with the first configuration information, ignoring the RRC connection reconfiguration information and/or performing target cell judgment based on second information corresponding to all configured target cells; and/or the presence of a gas in the gas,

if the first information further includes second configuration information, the second configuration information is used for indicating that the configured conditional handover configuration and/or cell handover condition of the at least one target cell is deleted, 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 judgment based on the second information corresponding to the remaining configured target cells; and/or the presence of a gas in the gas,

if the first information further includes third configuration information, the third configuration information is used to indicate that the configured conditional handover configuration and/or cell handover condition of the at least one target cell is modified or updated, and the terminal device cannot comply with the conditional handover command for modifying or updating the first target cell, where the conditional handover command of the first target cell is part or all of the conditional handover commands of the at least one target cell, delete the conditional handover command of the first target cell, and perform target cell determination based on the remaining second information corresponding to the configured target cell; and/or the presence of a gas in the gas,

and ignoring the first information, and performing target cell judgment based on second information corresponding to all configured target cells.

Optionally, the processing unit 320 is specifically configured to:

initiating an RRC connection reestablishment process according to the source of the first information, wherein the source of the first information comprises that the first information is configured by a source network device and/or that the first information is configured by a target network device.

Optionally, the cell switching condition is used for the terminal device to perform cell switching determination.

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

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

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

Optionally, the communication unit 310 is specifically configured to:

and receiving the RRC connection reconfiguration information sent by the source network equipment.

Optionally, the RRC connection reconfiguration information is used to carry the conditional handover command, and/or the RRC connection reconfiguration information is used to configure, update, modify, or delete the conditional handover 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 embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the terminal device 300 are respectively for implementing the corresponding flow of the terminal device in the method 200 shown in fig. 4, and are not described herein again for brevity.

Fig. 6 is a schematic structural diagram of a communication device 400 according to 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 also include a memory 420. From the memory 420, the processor 410 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 420 may be a separate device from the processor 410, or may be integrated into 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, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 430 may include a transmitter and a receiver, among others. The transceiver 430 may further include antennas, 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 the embodiment of the present application, and the communication device 400 may implement a corresponding procedure implemented by the network device or the base station in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the communication device 400 may specifically be a mobile terminal/terminal device in the embodiment of the present application, and the communication device 400 may implement a corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Fig. 7 is a schematic configuration diagram of an apparatus 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 a 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. From the memory 520, the processor 510 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 520 may be a separate device from the processor 510, or may be integrated into the processor 510.

Optionally, the apparatus 500 may further comprise an input interface 530. The processor 510 may control the input interface 530 to communicate with other devices or chips, and in particular, may obtain information or data transmitted by other devices or chips.

Optionally, the apparatus 500 may further comprise an output interface 540. The processor 510 may control the output interface 540 to communicate with other devices or chips, and may particularly output information or data to the other devices or chips.

Optionally, the apparatus may be applied to a network device or a base station in the embodiment of the present application, and the apparatus may implement a corresponding process implemented by the network device or the base station in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the apparatus may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the apparatus may implement the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, and for brevity, no further description is given here.

Alternatively, the device mentioned in the embodiments of the present application may also be a chip. For example, it may be a system-on-chip, a system-on-chip or a system-on-chip, etc.

Fig. 8 is a schematic block diagram of a communication system 600 provided in 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.

The terminal device 610 may be configured to implement the corresponding function implemented by the terminal device in the foregoing method, and the network device 620 may be configured to implement the corresponding function implemented by the network device or the base station in the foregoing method, which is not described herein again for brevity.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), Synchronous Link DRAM (SLDRAM), Direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing the computer program.

Optionally, the computer-readable storage medium may be applied to the network device or the base station in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device or the base station in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer-readable storage medium may 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 in the embodiment of the present application, which is not described herein again for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to the network device or the base station in the embodiment of the present application, and the computer program instructions enable the computer to execute corresponding processes implemented by the network device or the base station in the methods in the embodiments of the present application, which are not described herein again for brevity.

Optionally, the computer program product may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiment of the present application, which are not described herein again for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the network device or the base station in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute corresponding processes implemented by the network device or the base station in the methods in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer program may be applied to the mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of 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, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. With regard to such understanding, the technical solutions of the present application may be essentially implemented or contributed to by the prior art, or may be implemented in a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of wireless communication, comprising:

the method comprises the steps that terminal equipment receives Radio Resource Control (RRC) connection reconfiguration information, wherein the RRC connection reconfiguration information comprises first information;

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

the terminal equipment judges a target cell based on the configured part or all of the first information; alternatively, the first and second electrodes may be,

the terminal equipment initiates an RRC connection reestablishment process; alternatively, the first and second electrodes may be,

the terminal device sends first indication information to the source network device, wherein the first indication information is used for indicating the source network device and/or the target network device to configure the first information for the terminal device; alternatively, the first and second electrodes may be,

and the terminal equipment selects a target cell meeting the access condition for access.
The method of claim 5, wherein the terminal device performs the target cell determination based on the configured part or all of the first information, and the method comprises:

if the first information comprises first configuration information, the first configuration information is used for indicating condition switching configuration and/or cell switching conditions of at least one newly added target cell, and the terminal equipment cannot comply with the first configuration information, and the terminal equipment ignores the RRC connection reconfiguration information and/or performs target cell judgment based on second information corresponding to all configured target cells; and/or the presence of a gas in the gas,

if the first information further includes second configuration information, the second configuration information is used for indicating that the configured conditional handover configuration and/or cell handover condition of at least one target cell is deleted, 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 judgment based on the second information corresponding to the remaining configured target cells; and/or the presence of a gas in the gas,

if the first information further includes third configuration information, where the third configuration information is used to indicate that the configured conditional handover configuration and/or cell handover condition of the at least one target cell is modified or updated, and the terminal device cannot comply with the conditional handover command for modifying or updating the first target cell, where the conditional handover command of the first target cell is part or all of the conditional handover commands of the at least one target cell, the terminal device deletes the conditional handover command of the first target cell, and performs target cell determination based on the remaining second information corresponding to the configured target cell; and/or the presence of a gas in the gas,

and the terminal equipment ignores the first information and judges the target cell based on second information corresponding to all configured target cells.
The method of claim 6, wherein the type of the second information comprises a target cell handover configuration and/or a cell handover condition.
The method according to any of claims 5 to 7, wherein the terminal device initiates an RRC connection reestablishment procedure, comprising:

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

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

and the terminal equipment receives the RRC connection reconfiguration information sent by the source network equipment.
The method according to any of claims 1 to 13, wherein the RRC connection reconfiguration information is used to carry a conditional handover command, and/or wherein the RRC connection reconfiguration information is used for configuration, updating, modifying or deleting of a conditional handover command.
A terminal device, comprising:

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

and the processing unit is used for responding according to the source of the first information and/or the type of the first information if the terminal equipment 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 comprises that the first information is configured by a source network device and/or that 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 comprises 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 of claims 15 to 17, wherein the RRC connection reconfiguration information comprises 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 a source network device, the target cell handover configuration is configured by a target network device, and the cell handover condition is configured by the source network device or the target network device.
The terminal device of claim 18, wherein the processing unit is specifically configured to:

performing target cell judgment based on the configured part or all of the first information; alternatively, the first and second electrodes may be,

initiating an RRC connection reestablishment process; alternatively, the first and second electrodes may be,

controlling the communication unit to send first indication information to the source network device, where the first indication information is used to indicate the source network device and/or the target network device to configure the first information for the terminal device; alternatively, the first and second electrodes may be,

and selecting a target cell meeting the access condition for access.
The terminal device of claim 19, wherein the processing unit is specifically configured to:

if the first information comprises first configuration information, the first configuration information is used for indicating condition switching configuration and/or cell switching conditions of at least one newly added target cell, and the terminal equipment cannot comply with the first configuration information, ignoring the RRC connection reconfiguration information and/or judging the target cell based on second information corresponding to all configured target cells; and/or the presence of a gas in the gas,

if the first information further includes second configuration information, the second configuration information is used for indicating that the configured conditional handover configuration and/or cell handover condition of at least one target cell is deleted, 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 judgment based on the second information corresponding to the remaining configured target cells; and/or the presence of a gas in the gas,

if the first information further includes third configuration information, where the third configuration information is used to indicate that the configured conditional handover configuration and/or cell handover condition of the at least one target cell is modified or updated, and the terminal device cannot comply with the conditional handover command for modifying or updating the first target cell, where the conditional handover command for the first target cell is part or all of the conditional handover commands for the at least one target cell, delete the conditional handover command for the first target cell, and perform target cell determination based on the remaining second information corresponding to the configured target cell; and/or the presence of a gas in the gas,

and ignoring the first information, and judging the target cell based on second information corresponding to all configured target cells.
The terminal device according to claim 20, wherein the type of the second information comprises 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:

initiating an RRC connection reestablishment process according to the source of the first information, wherein the source of the first information comprises 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 any 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 of claim 23, wherein the configuration of the cell handover condition comprises at least one measurement event configuration.
The terminal device according to any of claims 19 to 24, wherein the target cell handover configuration comprises at least one of:

a cell radio network temporary identifier C-RNTI, a security algorithm identifier of a target network device, a dedicated random access preamble, an access parameter, and a system information block.
A terminal device according to any 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:

and receiving the RRC connection reconfiguration information sent by the source network equipment.
A terminal device according to any of claims 15 to 27, wherein the RRC connection reconfiguration information is used to carry a conditional handover command, and/or wherein the RRC connection reconfiguration information is used for configuration, updating, modifying or deleting of a conditional handover command.
A terminal device, comprising: a processor and a memory, the memory for storing a computer program, the processor for invoking and executing the computer program stored in the memory, performing the method of any one of claims 1 to 14.
An apparatus, comprising: a processor for calling and running a computer program from a memory to cause a device in which the apparatus is installed to perform the method of any one of claims 1 to 14.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 1 to 14.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 14.
A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 1 to 14.