CN112042224B

CN112042224B - Method, device, communication equipment and storage medium for switching cells

Info

Publication number: CN112042224B
Application number: CN202080001619.8A
Authority: CN
Inventors: 杨星
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2023-11-21
Anticipated expiration: 2040-07-22
Also published as: CN112042224A; WO2022016431A1

Abstract

The embodiment of the disclosure provides a method for switching cells, which is applied to a base station, wherein the method comprises the following steps: transmitting configuration information of a switching cell to a terminal; the configuration information is used for determining whether to adopt a dual-activation protocol DAPS mode to perform cell switching triggered by a CHO mechanism based on conditional switching.

Description

Method, device, communication equipment and storage medium for switching cells

Technical Field

The present disclosure relates to the field of wireless communications, and in particular, but not limited to a method, an apparatus, a communication device, and a storage medium for cell switching.

Background

In a wireless communication network, cell handover is performed to support mobility of terminals when moving between different cells. During a cell handover, interruption of data transmission may be caused due to disconnection of the radio resource control (RRC, radio Resource control) connection. Here, the interruption during cell handover is defined as the shortest duration during which the terminal cannot exchange user plane packets with any base station during mobility transitions.

In a New air interface (NR), with the introduction of various low-latency services, such as telemedicine, intelligent driving, and virtual reality services, low-latency interruption is one of the basic requirements for providing a seamless handover experience.

Disclosure of Invention

The embodiment of the disclosure discloses a method, a device, communication equipment and a storage medium for switching cells.

According to a first aspect of embodiments of the present disclosure, there is provided a method for cell handover, applied to a base station, where the method includes:

transmitting configuration information of a switching cell to a terminal;

the configuration information is used for determining whether to adopt a Dual Activation Protocol (DAPS) mode to perform cell switching triggered by a conditional access (CHO) mechanism.

In one embodiment, the configuration information includes:

and the scene parameter is used for indicating an application scene of performing cell switching triggered based on the conditional access (CHO) mechanism by adopting the Dual Activation Protocol (DAPS) mode.

In one embodiment, the application scenario is configured with a single cell as granularity; or the application scene is configured by taking a plurality of cells as granularity.

In one embodiment, the scene parameters include at least one of:

a threshold value, configured to indicate a channel state of a serving cell of the terminal corresponding to the application scenario;

and the service identifier is used for indicating the service corresponding to the application scene.

In one embodiment, the service identification includes one of: a logical channel identity, a quality of service flow identifier (QFI) or a quality of service identifier (5 QI).

According to a second aspect of embodiments of the present disclosure, there is provided a method for switching cells, applied to a terminal, where the method includes:

receiving configuration information of a switching cell sent by a base station;

In one embodiment, the configuration information includes:

In one embodiment, the scene parameters include at least one of:

In one embodiment, the method further comprises:

determining to perform the cell handover triggered based on the Conditional Handover (CHO) mechanism in the Dual Activation Protocol (DAPS) mode in response to the application scenario being indicated by the scenario parameter and not starting a prohibit timer;

or,

and in response to an application scene not indicated by the scene parameter, determining that the cell switching triggered based on the conditional switching (CHO) mechanism is not performed in a Dual Activation Protocol (DAPS) mode.

In one embodiment, the method further comprises:

and determining not to adopt the Dual Activation Protocol (DAPS) mode to perform cell switching triggered based on the conditional switching (CHO) mechanism in response to being in the timing time of the forbidden timer.

In one embodiment, the method further comprises:

determining whether to adopt the Dual Activation Protocol (DAPS) to perform a determination result based on the cell switching triggered by the conditional switching (CHO) mechanism according to the configuration information;

reporting the indication information carrying the determined result.

According to a third aspect of embodiments of the present disclosure, there is provided an apparatus for cell handover, applied to a base station, wherein the apparatus includes a transmitting module, wherein,

The sending module is configured to send configuration information of the switching cell to the terminal;

In one embodiment, the transmitting module is further configured to: the configuration information includes:

In one embodiment, the transmitting module is further configured to: the application scene is configured by taking a single cell as granularity; or the application scene is configured by taking a plurality of cells as granularity.

In one embodiment, the transmitting module is further configured to: the scene parameters include at least one of:

In one embodiment, the transmitting module is further configured to: the service identifier comprises one of the following: a logical channel identity, a quality of service flow identifier (QFI) or a quality of service identifier (5 QI).

According to a fourth aspect of embodiments of the present disclosure, there is provided an apparatus for cell handover, applied to a terminal, wherein the apparatus includes a receiving module, wherein,

the receiving module is configured to receive configuration information of a switching cell sent by a base station;

In one embodiment, the receiving module is further configured to: the configuration information includes:

In one embodiment, the receiving module is further configured to: the application scene is configured by taking a single cell as granularity; or the application scene is configured by taking a plurality of cells as granularity.

In one embodiment, the receiving module is further configured to: the scene parameters include at least one of:

In one embodiment, the receiving module is further configured to: the service identifier comprises one of the following: a logical channel identity, a quality of service flow identifier (QFI) or a quality of service identifier (5 QI).

In one embodiment, the apparatus further comprises a determination module, wherein,

the determination module is configured to:

or,

the determination module is configured to:

In one embodiment, the apparatus further comprises a reporting module, wherein,

The determination module is further configured to: determining whether to adopt the Dual Activation Protocol (DAPS) to perform a determination result based on the cell switching triggered by the conditional switching (CHO) mechanism according to the configuration information;

the reporting module is further configured to report the indication information carrying the determination result.

According to a fifth aspect of embodiments of the present disclosure, there is provided a communication device comprising:

a processor;

a memory for storing the processor-executable instructions;

wherein the processor is configured to: for executing the executable instructions, implementing the methods described in any of the embodiments of the present disclosure.

According to a sixth aspect of embodiments of the present disclosure, there is provided a computer storage medium storing a computer executable program which, when executed by a processor, implements the method of any embodiment of the present disclosure.

In the embodiment of the disclosure, configuration information of a switching cell is sent to a terminal; the configuration information is used for determining whether to adopt a Dual Activation Protocol (DAPS) mode to perform cell switching triggered by a conditional access (CHO) mechanism. In this way, firstly, the terminal can perform the cell switching triggered by the conditional switching (CHO) mechanism by adopting a dual-activation protocol (DAPS) mode, and in the process of performing the cell switching triggered by the conditional switching (CHO) mechanism by adopting the dual-activation protocol (DAPS), the connection with the Radio Resource Control (RRC) of the source cell is not disconnected before the terminal establishes the connection with the target cell, so that zero delay of the cell switching can be realized, and the requirement of low-delay service is met. And secondly, the terminal can determine the cell switching mode based on the configuration information, and the cell switching mode determined by the configuration information sent by the base station is adopted to perform the cell switching, so that the cell switching mode is more flexible. Compared with the method for carrying out the cell switching by adopting a single cell switching mode, the terminal can determine the cell switching mode matched with the service type of the terminal based on the configuration information according to the service type of the current terminal to carry out the cell switching. Because the time delay brought by different cell switching modes is different, the method can flexibly adapt to different demands of various services on the time delay, and brings good experience to users.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system.

Fig. 2 is a flow chart illustrating a method of switching cells according to an exemplary embodiment.

Fig. 3 is a flow chart illustrating a method of switching cells according to an exemplary embodiment.

Fig. 4 is a flow chart illustrating a method of switching cells according to an exemplary embodiment.

Fig. 5 is a flow chart illustrating a method of switching cells according to an exemplary embodiment.

Fig. 6 is a flow chart illustrating a method of switching cells according to an exemplary embodiment.

Fig. 7 is a flowchart illustrating a method of switching cells according to an exemplary embodiment.

Fig. 8 is a schematic diagram illustrating an apparatus for switching cells according to an exemplary embodiment.

Fig. 9 is a schematic diagram illustrating an apparatus for switching cells according to an exemplary embodiment.

Fig. 10 is a block diagram of a user device, according to an example embodiment.

Fig. 11 is a block diagram of a base station, according to an example embodiment.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present disclosure. Rather, they are merely examples of apparatus and methods consistent with aspects of embodiments of the present disclosure as detailed in the accompanying claims.

The terminology used in the embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the disclosure. As used in this disclosure of embodiments and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of embodiments of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.

For purposes of brevity and ease of understanding, the terms "greater than" or "less than" are used herein in characterizing a size relationship. But it will be appreciated by those skilled in the art that: based on the corresponding technical scenario and technical scheme, the term "greater than" may also cover the meaning of "greater than or equal to" and "less than" may also cover the meaning of "less than or equal to".

Referring to fig. 1, a schematic structural diagram of a wireless communication system according to an embodiment of the disclosure is shown. As shown in fig. 1, the wireless communication system is a communication system based on a cellular mobile communication technology, and may include: a number of user equipments 110 and a number of base stations 120.

User device 110 may be, among other things, a device that provides voice and/or data connectivity to a user. The user equipment 110 may communicate with one or more core networks via a radio access network (Radio Access Network, RAN), and the user equipment 110 may be an internet of things user equipment such as sensor devices, mobile phones (or "cellular" phones) and computers with internet of things user equipment, for example, stationary, portable, pocket, hand-held, computer-built-in or vehicle-mounted devices. Such as a Station (STA), subscriber unit (subscriber unit), subscriber Station (subscriber Station), mobile Station (mobile), remote Station (remote Station), access point, remote user equipment (remote terminal), access user equipment (access terminal), user device (user terminal), user agent (user agent), user device (user device), or user equipment (user request). Alternatively, the user device 110 may be a device of an unmanned aerial vehicle. Alternatively, the user device 110 may be a vehicle-mounted device, for example, a laptop with a wireless communication function, or a wireless user device with an external laptop. Alternatively, the user device 110 may be a roadside device, for example, a street lamp, a signal lamp, or other roadside devices with a wireless communication function.

The base station 120 may be a network-side device in a wireless communication system. Wherein the wireless communication system may be a fourth generation mobile communication technology (the 4th generation mobile communication,4G) system, also known as a long term evolution (Long Term Evolution, LTE) system; alternatively, the wireless communication system may be a 5G system, also known as a new air interface system or a 5G NR system. Alternatively, the wireless communication system may be a next generation system of the 5G system. Among them, the access network in the 5G system may be called NG-RAN (New Generation-Radio Access Network, new Generation radio access network).

The base station 120 may be an evolved node b (eNB) employed in a 4G system. Alternatively, the base station 120 may be a base station (gNB) in a 5G system that employs a centralized and distributed architecture. When the base station 120 adopts a centralized and distributed architecture, it generally includes a Centralized Unit (CU) and at least two Distributed Units (DUs). A protocol stack of a packet data convergence protocol (Packet Data Convergence Protocol, PDCP) layer, a radio link layer control protocol (Radio Link Control, RLC) layer, and a medium access control (Media Access Control, MAC) layer is provided in the centralized unit; a Physical (PHY) layer protocol stack is provided in the distribution unit, and the specific implementation of the base station 120 is not limited in the embodiments of the present disclosure.

A wireless connection may be established between the base station 120 and the user equipment 110 over a wireless air interface. In various embodiments, the wireless air interface is a fourth generation mobile communication network technology (4G) standard-based wireless air interface; or, the wireless air interface is a wireless air interface based on a fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; alternatively, the wireless air interface may be a wireless air interface based on a 5G-based technology standard of a next generation mobile communication network.

In some embodiments, an E2E (End to End) connection may also be established between the user devices 110. Such as V2V (vehicle to vehicle, vehicle-to-vehicle) communications, V2I (vehicle to Infrastructure, vehicle-to-road side equipment) communications, and V2P (vehicle to pedestrian, vehicle-to-person) communications among internet of vehicles communications (vehicle to everything, V2X).

Here, the above-described user equipment can be regarded as the terminal equipment of the following embodiment.

In some embodiments, the wireless communication system described above may also include a network management device 130.

Several base stations 120 are respectively connected to a network management device 130. The network management device 130 may be a core network device in a wireless communication system, for example, the network management device 130 may be a mobility management entity (Mobility Management Entity, MME) in an evolved packet core network (Evolved Packet Core, EPC). Alternatively, the network management device may be other core network devices, such as a Serving GateWay (SGW), a public data network GateWay (Public Data Network GateWay, PGW), a policy and charging rules function (Policy and Charging Rules Function, PCRF) or a home subscriber server (Home Subscriber Server, HSS), etc. The embodiment of the present disclosure is not limited to the implementation form of the network management device 130.

To facilitate an understanding of any of the embodiments of the present disclosure, first, a scenario of cell handover will be described.

In the cell handover procedure, after receiving a cell handover command, the terminal disconnects radio resource control (RRC, radio Resource Control) connection with a source cell (here, the source cell is a serving cell to which the terminal is currently connected). And initiating a random access procedure to the target cell, and transmitting a Radio Resource Control (RRC) reconfiguration complete message to the target base station. The data transmission of the terminal is interrupted before a Radio Resource Control (RRC) connection is successfully established with the target cell, which may cause a delay of the traffic. To achieve the time delay requirement of traffic during handoff, a dual activation protocol (DAPS, dual Active Protocol Solution) was introduced. After receiving a Dual Activation Protocol (DAPS) handoff command, the terminal continues to maintain a Radio Resource Control (RRC) connection with the source cell while initiating a random access procedure to the target cell. After successfully establishing a Radio Resource Control (RRC) connection with the target cell, the target cell instructs the terminal to disconnect the Radio Resource Control (RRC) connection with the source cell.

In order to improve the robustness of the handover, fifth generation mobile communication (5G) proposes a conditional handover (CHO, conditional handover) based on the fact that the network can configure the terminal with alternative cells that can be target cells and handover triggering conditions in advance. When the switching triggering condition is satisfied, the terminal initiates a switching process by itself, switches to a target cell selected from the candidate cells, and does not need to send a switching command again by the network in the cell switching process. The network may configure the terminal with one or more alternative cells that may be target cells and handover trigger conditions. The handoff trigger conditions may include A3 and A5 events. The A3 event is that the channel quality of the adjacent cell is higher than the value set by the service cell, the A5 event is that the channel quality of the adjacent cell is higher than the first set threshold, and the channel quality of the service cell is lower than the second set threshold. This reduces radio link failure due to the base station sending a handover command too late. However, the cell switching scheme based on the Conditional Handover (CHO) and the cell switching scheme based on the Dual Activation Protocol (DAPS) cannot be simultaneously configured for the terminal. Services such as virtual reality require low latency to support the service, as well as extremely high robustness. The cell handover procedure based on Conditional Handover (CHO) is interrupted.

As shown in fig. 2, the present embodiment provides a method for cell handover, which is applied to a base station, where the method includes:

step 21, sending configuration information of a switching cell to a terminal;

the configuration information is used for determining whether to adopt a Dual Activation Protocol (DAPS) mode to perform cell switching triggered by a conditional switching (CHO) mechanism.

In one embodiment, the terminal may be, but is not limited to, a mobile phone, a wearable device, a vehicle mounted terminal, a Road Side Unit (RSU), a smart home terminal, an industrial sensing device, and/or a medical device, etc.

The base station is an interface device for a terminal to access a network. The base station may be various types of base stations, such as a base station of a third generation mobile communication (3G) network, a base station of a fourth generation mobile communication (4G) network, a base station of a fifth generation mobile communication (5G) network, or other evolved base stations.

In one embodiment, the base station may determine an alternative cell to which the terminal can be handed over as a target cell when performing cell handover, and send a Conditional Handover (CHO) based command to the terminal. Wherein, the command based on Conditional Handover (CHO) may carry the cell information of the candidate cell that may be the target cell and the cell handover trigger condition. Here, different cell handover trigger conditions may be set correspondingly for different candidate cells. When the switching triggering condition is satisfied, the terminal initiates a switching process by itself, switches to a target cell selected from the candidate cells, and does not need the base station to send a switching command again in the cell switching process. Here, the Conditional Handover (CHO) based command may be carried in the configuration information.

In one embodiment, the handover trigger condition includes a measurement event configured by the base station to the terminal. And after the configuration is completed, the terminal measures the corresponding parameters of the configured measurement event. And when the measurement result meets the switching trigger condition, the terminal initiates a cell switching process by itself.

In one embodiment, the measurement event may include at least one of: a1 event, A2 event, A3 event, A4 event, A5 event, B1 event, and B2 event. It should be noted that other measurement events may be included, and are not limited herein.

In one embodiment, the measurements performed by the terminal for different measurement events may be different. For example, when a source cell (here, the source cell may be a cell that provides a service for a terminal) configures an A1 event for the terminal, the terminal needs to measure whether the signal quality of the source cell is higher than a first threshold; and when the signal quality of the source cell is higher than a first threshold, the switching triggering condition of the A1 event is met. For another example, when the source cell configures an A3 event for the terminal, the terminal needs to measure whether the signal quality corresponding to the neighboring cell of the source cell is higher than the signal quality of the source cell; and when the signal measurement corresponding to the neighbor cell is higher than the signal quality of the source cell, determining that the switching trigger condition of the A3 event is satisfied.

In one embodiment, the source cell may configure the terminal with a plurality of measurement events. For example, the source cell may configure the terminal with an A3 event and an A5 event. A3 event is that the signal quality of the adjacent cell is higher than the signal quality of the source cell by a first set threshold; the event A5 is that the signal quality of the neighbor cell is higher than the second set threshold and the channel quality of the source cell is lower than the third set threshold.

In one embodiment, the cell handover triggered by the Conditional Handover (CHO) mechanism in the Dual Activation Protocol (DAPS) manner may be that the terminal initiates the cell handover by the Dual Activation Protocol (DAPS) manner when a handover triggering condition based on the Conditional Handover (CHO) mechanism is satisfied. Here, the terminal maintains a connection with a source cell after receiving a Dual Activation Protocol (DAPS) handover command while initiating a random access procedure to a target cell. After successfully establishing a connection with the target cell, the target cell then instructs the terminal to disconnect a Radio Resource Control (RRC) connection with the source cell. In this way, the service delay caused by the interruption of the data transmission of the terminal before the connection is successfully established with the target cell is reduced.

In one embodiment, the base station transmits configuration information by a broadcast message; alternatively, the base station transmits the configuration information through a Radio Resource Control (RRC) reconfiguration message. In this way, the signaling compatibility of the broadcast message or the Radio Resource Control (RRC) reconfiguration message is improved by transmitting the configuration information through the existing broadcast message or the Radio Resource Control (RRC) reconfiguration message.

In one embodiment, the Radio Resource Control (RRC) reconfiguration message may be a Radio Resource Control (RRC) connection reconfiguration (RRCConnectionReconfiguration) signaling including information carrying configuration information. The terminal receives configuration information transmitted through Radio Resource Control (RRC) connection reconfiguration (RRCConnectionReconfiguration) signaling. In this way, existing Radio Resource Control (RRC) signaling can be utilized for carrying.

In one embodiment, a base station transmits configuration information for an acquisition request to a terminal in response to the received acquisition request for acquiring the configuration information transmitted by the terminal.

In one embodiment, the terminal sends an acquisition request for acquiring configuration information to the base station in response to detecting that the time delay of the service when performing cell switching is greater than a set time delay threshold, and the base station sends the configuration information to the terminal for the acquisition request after receiving the acquisition request. Here, when the time delay of the service is greater than the time delay threshold during cell switching, the terminal can request configuration information to the base station in time, and perform cell switching triggered based on a conditional switching (CHO) mechanism by adopting a Dual Activation Protocol (DAPS) mode with small time delay in time according to the indication of the configuration information. Therefore, the time delay of the service in the cell service can be reduced, and the user experience is improved.

In one embodiment, when the terminal needs to transmit service data with a delay requirement smaller than a set delay threshold, an acquisition request for acquiring configuration information is sent to the base station, and the base station sends the configuration information to the terminal for the acquisition request after receiving the acquisition request. Here, when the terminal needs to transmit service data with a delay requirement smaller than the set delay threshold, the terminal can request configuration information to the base station in time according to the delay requirement, and perform cell switching triggered based on a conditional switching (CHO) mechanism in time by adopting a Dual Activation Protocol (DAPS) mode with small delay according to the indication of the configuration information. Therefore, the time delay brought by the cell switching of the terminal can meet the time delay requirement of the terminal for transmitting data, and the user experience is improved.

In one embodiment, a base station sends configuration information to a terminal in response to the terminal establishing a Radio Resource Control (RRC) connection with the base station. The terminal can obtain configuration information in time after establishing Radio Resource Control (RRC) connection with the base station, so that when the terminal needs to perform service transmission between the terminal and the base station after the base station establishes the Radio Resource Control (RRC) connection, the terminal can perform service transmission in time by adopting a cell switching mode matched with the time delay requirement of service transmission.

In one embodiment, the configuration information includes:

and the scene parameter is used for indicating an application scene of performing cell switching triggered by a conditional access (CHO) mechanism in a dual-activation protocol (DAPS) mode.

Here, the application scenario may be that the signal strength of the serving cell of the terminal is within the first signal range, the signal strength of the neighboring cell is within the second signal range, and/or the terminal is currently transmitting data for setting a service type. For example, the signal strength of the serving cell of the terminal is greater than a, and the terminal transmits the service data of the type B, so that the corresponding application scenario can be determined as the first scenario. For another example, the signal strength of the serving cell of the terminal is smaller than C, the signal strength of the neighboring cell is larger than D, and the terminal is transmitting the E-type service data, so that the corresponding application scenario can be determined as the second scenario.

Here, the signal strength value in the first signal range may be smaller than the signal strength value in the second signal range. For example, the first signal range is [ A1, A2], and the signal intensity value x in the first signal range is A1< x < A2; the second signal range is [ B1, B2], and the signal intensity value y in the second signal range is B1< y < B2. In this way, when the terminal measures that the signal intensity value x1 of the serving cell of the terminal is within the first signal range and the signal intensity value y1 of the neighboring cell is within the second signal range, it can be determined that the corresponding application scenario can be an application scenario for triggering the terminal to switch to the neighboring cell.

In one embodiment, cell switching may be performed in different manners under different application scenarios. For example, in a first scenario, a Dual Activation Protocol (DAPS) mode is adopted to perform cell handover triggered based on a Conditional Handover (CHO) mechanism; in a second scenario, a Dual Activation Protocol (DAPS) approach is not used for cell handover triggered by a Conditional Handover (CHO) mechanism. Here, the configuration information indicates an application scenario of performing a cell handover triggered based on a Conditional Handover (CHO) mechanism by using a Dual Activation Protocol (DAPS) manner through a scenario parameter. In a third scenario, the following cell switching method may be adopted, where the method of the cell switching method includes: after receiving the switching command of the base station, the terminal disconnects the Radio Resource Control (RRC) connection with the source cell, initiates a random access process to the target cell, and sends a Radio Resource Control (RRC) reconfiguration completion message to the target base station. Here, with this cell switching method, the data transmission of the terminal is interrupted before the connection is successfully established with the target cell.

In one embodiment, the application scenario is configured with a single cell as granularity; alternatively, the application scenario is configured with a plurality of cells as granularity.

Here, the cell may be an alternative cell to which the terminal may be handed over, which may be a target cell.

In one embodiment, the base station may predetermine an alternative cell to which the terminal may be handed over that may be the target cell. For example, the terminal may determine cells to which the terminal may be handed over to as cell a, cell B, and cell C.

In one embodiment, the application scenario is configured with a single cell as granularity, and may be an application scenario in which cell a, cell B, and cell C are configured separately. For example, an application scene of the cell a is configured as an a scene, an application scene of the cell B is configured as a B scene, and a scene of the cell C is configured as a C scene. The a-scene, b-scene, and c-scene may be the same or different. In summary, the application scenarios of the different cells are independent of each other.

In one embodiment, the plurality of cells may be all cells in one network. In this way, the terminal can more easily acquire the alternative cell as a target cell for cell switching when the terminal has more alternative cells for cell switching. In another embodiment, the plurality of cells may be a plurality of cells within one Tracking Area (TA). Thus, the range of the terminal for cell search can be reduced, and the terminal can quickly acquire the alternative cell as a target cell for cell switching.

In one embodiment, the application scenario is configured with granularity of a plurality of cells. The application scenarios in which cell a, cell B and cell C are configured may be the same. For example, the application scenes configuring cell a, cell B and cell C are d scenes.

In one embodiment, when the application scenario where the terminal is currently located is an application scenario of a certain target cell, the terminal performs cell switching triggered based on a conditional access (CHO) mechanism by adopting a Dual Activation Protocol (DAPS) manner, and switches to the target cell. For example, when the current application scenario of the terminal is the application scenario of the target cell a, the terminal uses a Dual Activation Protocol (DAPS) to perform cell switching triggered by a conditional access (CHO) mechanism, and switches to the target cell a.

In one embodiment, the scene parameters include at least one of:

the threshold value is used for indicating the channel state of the service cell of the terminal corresponding to the application scene;

In one embodiment, different threshold values may be set for different serving cells. The terminal may determine the threshold value based on a serving cell of the terminal. Because the channel environments of different service cells can be different, the threshold value is determined according to the service cell of the terminal, so that the setting of the threshold value is more in line with the channel condition, and the mode of cell switching can be accurately selected.

Referring to table one, a threshold value 1 is associated with cell a; a threshold value 2 is associated with a cell B; the threshold value 3 is associated with cell C. Here, after determining the serving cell of the terminal, the terminal may determine a threshold value used when selecting the cell switching mode. For example, when the terminal determines that the serving cell of the terminal is cell a, it may be determined that the threshold value used in cell handover is threshold value 1.

List one

Threshold value	Cell
		Threshold value 1	Cell A
Threshold value 2	Cell B
		Threshold value 3	Cell C

In one embodiment, the service identification includes one of: a logical channel identity, a quality of service Flow identifier (QFI, qoS Flow ID), or a quality of service identifier (5QI,5G Qos indicator).

Here, the service identifier is used to indicate a service type of a transmission service between the terminal and the base station. In one embodiment, different traffic types have different delays. For example, the service identifier a indicates that the service type of the a service is the first service type. Wherein, the time delay requirement of the service a is that the time delay is less than m. Such as telemedicine and intelligent driving. As another example, service identifier B indicates that the service type of the B-service is the second service type. Wherein, the time delay requirement of b business is that the time delay is more than m. Such as intelligent meter reading and the like.

In the embodiment of the disclosure, firstly, the terminal can perform cell switching triggered by a conditional access (CHO) mechanism by adopting a dual-activation protocol (DAPS) mode, and in the process of performing cell switching triggered by the conditional access (CHO) mechanism by adopting the dual-activation protocol (DAPS), the connection with the Radio Resource Control (RRC) of the source cell is not disconnected before the terminal establishes the connection with the target cell, so that zero delay of cell switching can be realized, and the requirement of low-delay service is met. And secondly, the terminal can determine the cell switching mode based on the configuration information, and the cell switching mode determined by the configuration information sent by the base station is adopted to perform the cell switching, so that the cell switching mode is more flexible. Compared with the method for carrying out cell switching by adopting a single cell switching mode, the terminal can determine the cell switching mode matched with the service type of the terminal based on the configuration information according to the service type of the terminal at present to carry out cell switching. Because the time delay brought by different cell switching modes is different, the method can flexibly adapt to different demands of various services on the time delay, and brings good experience to users.

As shown in fig. 3, the present embodiment provides a method for switching cells, which is applied to a terminal, where the method includes:

Step 31, receiving configuration information of a handover cell sent by a base station;

In one embodiment, the cell handover triggered by the conditional access (CHO) mechanism in the Dual Activation Protocol (DAPS) manner may be that the terminal initiates the cell handover by itself in the Dual Activation Protocol (DAPS) manner when the handover trigger condition based on the conditional access (CHO) mechanism is satisfied. Here, the terminal maintains a connection with a source cell after receiving a Dual Activation Protocol (DAPS) handover command while initiating a random access procedure to a target cell. After successfully establishing a connection with the target cell, the target cell then instructs the terminal to disconnect a Radio Resource Control (RRC) connection with the source cell. In this way, the service delay caused by the interruption of the data transmission of the terminal before the connection is successfully established with the target cell is reduced.

In one embodiment, a terminal receives configuration information sent by a base station through a broadcast message; or, the terminal receives configuration information transmitted by the base station through a Radio Resource Control (RRC) reconfiguration message. In this way, the signaling compatibility of the broadcast message or the Radio Resource Control (RRC) reconfiguration message is improved by transmitting the configuration information through the existing broadcast message or the Radio Resource Control (RRC) reconfiguration message.

In one embodiment, the Radio Resource Control (RRC) reconfiguration message may be a Radio Resource Control (RRC) connection reconfiguration (RRCConnectionReconfiguration) signaling including information carrying configuration information. The terminal receives configuration information transmitted through Radio Resource Control (RRC) connection reconfiguration (RRCConnectionReconfiguration) signaling. In this way, the existing Radio Resource Control (RRC) signaling can be utilized to carry configuration information, multiplexing of the Radio Resource Control (RRC) signaling is realized, and compatibility of the signaling is improved.

In one embodiment, the configuration information includes:

In one embodiment, the application scenario is configured with a single cell as granularity, and may be an application scenario in which cell a, cell B, and cell C are configured separately. For example, an application scene of the cell a is configured as an a scene, an application scene of the cell B is configured as a B scene, and a scene of the cell C is configured as a C scene.

In one embodiment, the application scenario is configured with granularity of a plurality of cells. The application scenarios in which cell a, cell B and cell C are configured may be the same. For example, the application scenes configuring cell a, cell B and cell C are d scenes. The a-scene, b-scene, and c-scene may be the same or different. In summary, the application scenarios of the different cells are independent of each other.

In one embodiment, the scene parameters include at least one of:

Referring to table one again, a threshold value of 1 is associated with cell a; a threshold value 2 is associated with a cell B; the threshold value 3 is associated with cell C. Here, after determining the serving cell of the terminal, the terminal may determine a threshold value used when selecting the cell switching mode. For example, when the terminal determines that the serving cell of the terminal is cell a, it may be determined that the threshold value used in cell handover is threshold value 1.

As shown in fig. 4, in this embodiment, a method for switching cells is provided, and the method further includes:

step 41, in response to the application scene indicated by the scene parameter and the timing of the prohibit timer not being started, determining to perform cell handover triggered by a Conditional Handover (CHO) mechanism in a dual-activation protocol (DAPS) manner;

or,

and in response to the application scene not being indicated by the scene parameter, determining that the cell switching triggered by a conditional switching (CHO) mechanism is not performed in a dual-activation protocol (DAPS) mode.

In one embodiment, the prohibit timer may be a T310 timer.

Here, when the terminal performs radio link detection and continuously receives the downlink out-of-step indication of the first set number, the start of the T310 timer is triggered. And if the second set number of downlink synchronization instructions are continuously received in the timing process of the T310 timer, stopping the T310 timer to indicate the wireless link synchronization to resume. If the T310 timer expires, it may be determined that a radio link failure is detected, which will trigger a Radio Resource Control (RRC) connection re-establishment procedure. Here, the start-up may include an initial start-up and a repeated start-up.

In one embodiment, cell switching may be performed in different manners under different application scenarios. For example, in a first scenario, a Dual Activation Protocol (DAPS) mode is adopted to perform cell handover triggered based on a Conditional Handover (CHO) mechanism; in a second scenario, a Dual Activation Protocol (DAPS) approach is not used for cell handover triggered by a Conditional Handover (CHO) mechanism. Here, the configuration information indicates an application scenario of performing CHO-mechanism-based cell handover by using a DAPS method through a scenario parameter.

In one embodiment, the scene parameters include at least one of:

In an embodiment, the application scenario indicated by the scenario parameter may be that the terminal detects that the channel state of the serving cell is smaller than the threshold value and/or the identifier corresponding to the detected service is the service identifier.

In an embodiment, the application scenario not in the scenario parameter indication may be that the terminal detects that the channel state of the serving cell is greater than the threshold value and/or that the detected identifier corresponding to the service is not the service identifier.

Here, the cell handover triggered by the conditional handover CHO mechanism by adopting the Dual Activation Protocol (DAPS) mode may be that the terminal initiates the cell handover procedure by itself when the handover trigger condition based on the Conditional Handover (CHO) is satisfied. Here, the cell handover procedure is performed based on a Dual Activation Protocol (DAPS) scheme. Here, the terminal maintains a connection with a source cell after receiving a Dual Activation Protocol (DAPS) handover command while initiating a random access procedure to a target cell. After successfully establishing a connection with the target cell, the target cell then instructs the terminal to disconnect a Radio Resource Control (RRC) connection with the source cell. In this way, the service delay caused by the interruption of data transceiving of the terminal before the connection is successfully established with the target cell is reduced.

As shown in fig. 5, in this embodiment, a method for switching cells is provided, and the method further includes:

in response to being within the timing time of the prohibit timer, it is determined that a Dual Activation Protocol (DAPS) mode is not employed for cell handover triggered by a Conditional Handover (CHO) mechanism, step 51.

In one embodiment, the prohibit timer may be a T310 timer.

In one embodiment, the terminal starts a T310 timer when it detects a physical layer failure. Before the timer expires, if the terminal detects physical layer failure recovery, or triggers a handover procedure, or the terminal initiates a Radio Resource Control (RRC) reestablishment procedure, the timer is stopped. After the T310 timer expires, the terminal may initiate a Radio Resource Control (RRC) reestablishment procedure.

In one embodiment, the cell switch triggered by the conditional switch (CHO) -based mechanism without using the Dual Activation Protocol (DAPS) may be the cell switch using the conditional switch (CHO) -based mechanism.

As shown in fig. 6, in this embodiment, a method for switching cells is provided, and the method further includes:

step 61, determining whether to adopt Dual Activation Protocol (DAPS) to carry out a determination result of cell switching triggered based on a conditional switching (CHO) mechanism according to the configuration information;

and step 62, reporting the indication information carrying the determined result.

In one embodiment, the configuration information indicates an application scenario for a Conditional Handover (CHO) -based mechanism triggered cell handover in a Dual Active Protocol (DAPS) manner via a scenario parameter.

In one embodiment, the application scenario may be that the signal strength of the serving cell of the terminal is within a first signal range, the signal strength of the neighboring cell is within a second signal range, and/or the terminal is currently transmitting data setting the service type. For example, the signal strength of the serving cell of the terminal is greater than a, and the terminal transmits the service data of the type B, so that the corresponding application scenario can be determined as the first scenario. For another example, the signal strength of the serving cell of the terminal is smaller than C, the signal strength of the neighboring cell is larger than D, and the terminal is transmitting the E-type service data, so that the corresponding application scenario can be determined as the second scenario.

In one embodiment, cell switching may be performed in different manners under different application scenarios. For example, in a first scenario, a Dual Activation Protocol (DAPS) mode is adopted to perform cell handover triggered based on a Conditional Handover (CHO) mechanism; in the second scenario, the cell handover triggered by the Conditional Handover (CHO) mechanism is not performed by the Dual Activation Protocol (DAPS) method, but is performed by the Conditional Handover (CHO) mechanism by the non-Dual Activation Protocol (DAPS) method. In a third scenario, the following cell switching method may be adopted, where the method of the cell switching method includes: after receiving the switching command of the base station, the terminal disconnects the Radio Resource Control (RRC) connection with the source cell, initiates a random access process to the target cell, and sends a Radio Resource Control (RRC) reconfiguration completion message to the target base station. Here, with this cell switching method, the data transmission of the terminal is interrupted before the connection is successfully established with the target cell.

In one embodiment, the determination is a first result of a CHO-mechanism-based cell handover with DAPS or a second result of a Conditional Handover (CHO) -mechanism-based cell handover without Dual Activation Protocol (DAPS).

In one embodiment, the indication information is carried in a Radio Resource Control (RRC) reconfiguration complete message. In this way, the existing Radio Resource Control (RRC) reconfiguration complete message can be utilized to carry indication information, multiplexing of the Radio Resource Control (RRC) reconfiguration complete message is achieved, and signaling compatibility is improved.

In order to facilitate understanding of any embodiment of the present disclosure, the technical solution of the present disclosure is further illustrated by an embodiment below.

Example 1

Referring to fig. 7, a method for switching cells is provided in this embodiment, and includes:

step s1, a terminal located in a cell 1 receives configuration information of a handover cell sent by a base station of the cell 1; the configuration information is used for determining whether to adopt a Dual Activation Protocol (DAPS) mode to perform cell switching triggered by a conditional switching (CHO) mechanism. The configuration information comprises parameter information with the signal strength of the adjacent cell being 3db higher than that of the serving cell, a threshold value '-97 db' and a logic channel identifier '6', and an identifier of an alternative cell 2 which can be used as a target cell.

Step s2, the terminal measures that the signal intensity of the cell 2 is 3dB higher than that of the cell 1, and triggers the cell switching. At this time, the signal quality of the detected serving cell is-93 db, which is higher than-97 db. And the service data to be sent is in the logic channel 6, a Dual Activation Protocol (DAPS) mode is initiated to the target cell 2 to perform cell switching triggered based on a conditional switching (CHO) mechanism.

Step s3, the terminal keeps the connection with the cell 1, and initiates a random access process to the cell 2, and the Radio Resource Control (RRC) reconfiguration complete message carries the result information of the cell handover triggered by the conditional access (CHO) mechanism in a dual-activation protocol (DAPS) mode, wherein the handover type indication is carried in the Radio Resource Control (RRC) reconfiguration complete message.

Step s4, after receiving the Radio Resource Control (RRC) reconfiguration complete message, the base station of the cell 2 recognizes that the handover is to be a cell handover triggered by a conditional access (CHO) mechanism in a dual-activation protocol (DAPS) manner, and sends a release instruction to the terminal, so as to instruct the terminal to release the Radio Resource Control (RRC) connection with the source cell.

In the embodiment of the disclosure, firstly, the terminal can perform cell switching triggered by a conditional access (CHO) mechanism by adopting a dual-activation protocol (DAPS) mode, and in the process of performing cell switching triggered by the conditional access (CHO) mechanism by adopting the dual-activation protocol (DAPS), the connection with the Radio Resource Control (RRC) of the source cell is not disconnected before the terminal establishes the connection with the target cell, so that zero delay of cell switching can be realized, and the requirement of low-delay service is met. And secondly, the terminal can determine the cell switching mode based on the configuration information, and the cell switching mode determined by the configuration information sent by the base station is adopted to perform the cell switching, so that the cell switching mode is more flexible. Compared with the method for switching the cells by adopting a single cell switching mode, the terminal can determine the cell switching mode matched with the service type of the terminal based on the configuration information according to the service type of the current terminal to switch the cells. Because the time delay brought by different cell switching modes is different, the method can flexibly adapt to different demands of various services on the time delay, and brings good experience to users.

As shown in fig. 8, an apparatus for cell switching is provided in this embodiment, which is applied to a base station, where the apparatus includes a transmitting module 81, where,

a transmitting module 81 configured to transmit configuration information of a handover cell to a terminal;

In one embodiment, the sending module 81 is further configured to: configuration information, comprising:

In one embodiment, the sending module 81 is further configured to: the application scene is configured by taking a single cell as granularity; alternatively, the application scenario is configured with a plurality of cells as granularity.

In one embodiment, the sending module 81 is further configured to: scene parameters including at least one of:

In one embodiment, the sending module 81 is further configured to: service identification, including one of: a logical channel identity, a quality of service flow identifier (QFI) or a quality of service identifier (5 QI).

As shown in fig. 9, the present embodiment provides an apparatus for cell handover, which is applied to a terminal, wherein the apparatus includes a receiving module 91, wherein,

a receiving module 91 configured to receive configuration information of a handover cell sent by a base station;

In one embodiment, the receiving module 91 is further configured to: configuration information, comprising:

In one embodiment, the receiving module 91 is further configured to: the application scene is configured by taking a single cell as granularity; alternatively, the application scenario is configured with a plurality of cells as granularity.

In one embodiment, the receiving module 91 is further configured to: scene parameters including at least one of:

In one embodiment, the receiving module 91 is further configured to: service identification, including one of: a logical channel identity, a quality of service flow identifier (QFI) or a quality of service identifier (5 QI).

In one embodiment, the apparatus further comprises a determination module 92, wherein,

a determination module 92 configured to:

determining to perform cell switching triggered based on a conditional switching (CHO) mechanism in a dual-activation protocol (DAPS) mode in response to an application scene indicated by scene parameters and not starting a forbidden timer;

or,

a determination module 92 configured to:

in response to being within the timing time of the prohibit timer, determining not to employ a Dual Activation Protocol (DAPS) mode for a Conditional Handoff (CHO) -based mechanism triggered cell handoff.

In one embodiment, the apparatus further comprises a reporting module 93, wherein,

the determination module 92 is further configured to: determining whether to adopt a Dual Activation Protocol (DAPS) to carry out a determination result of cell switching triggered based on a conditional switching (CHO) mechanism according to the configuration information;

the reporting module 93 is further configured to report the indication information carrying the determination result.

The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.

The embodiment of the disclosure provides a communication device, which comprises:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to: for executing executable instructions, implements a method that is applicable to any of the embodiments of the present disclosure.

The processor may include, among other things, various types of storage media, which are non-transitory computer storage media capable of continuing to memorize information stored thereon after a power down of the communication device.

The processor may be coupled to the memory via a bus or the like for reading the executable program stored on the memory.

The embodiments of the present disclosure also provide a computer storage medium, where the computer storage medium stores a computer executable program that, when executed by a processor, implements the method described in any of the embodiments of the present disclosure. .

Fig. 10 is a block diagram of a User Equipment (UE) 800, according to an example embodiment. For example, user device 800 may be a mobile phone, computer, digital broadcast user device, messaging device, game console, tablet device, medical device, exercise device, personal digital assistant, or the like.

Referring to fig. 10, a user device 800 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and a communication component 816.

The processing component 802 generally controls overall operation of the user device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interactions between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the user device 800. Examples of such data include instructions for any application or method operating on the user device 800, contact data, phonebook data, messages, pictures, video, and the like. The memory 804 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The power supply component 806 provides power to the various components of the user device 800. The power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the user device 800.

The multimedia component 808 includes a screen between the user device 800 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and/or a rear camera. The front camera and/or the rear camera may receive external multimedia data when the user device 800 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the user device 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 further includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 814 includes one or more sensors for providing status assessment of various aspects of the user device 800. For example, the sensor assembly 814 may detect an on/off state of the user device 800, a relative positioning of the components, such as a display and keypad of the user device 800, a change in position of the user device 800 or a component of the user device 800, the presence or absence of user contact with the user device 800, an orientation or acceleration/deceleration of the user device 800, and a change in temperature of the user device 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate communication between the user device 800 and other devices, either in a wired or wireless manner. The user device 800 may access a wireless network based on a communication standard, such as WiFi,2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the user device 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.

In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 804 including instructions executable by processor 820 of user device 800 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

As shown in fig. 11, an embodiment of the present disclosure shows a structure of a base station. For example, base station 900 may be provided as a network-side device. Referring to fig. 11, base station 900 includes a processing component 922 that further includes one or more processors and memory resources represented by memory 932 for storing instructions, such as applications, executable by processing component 922. The application programs stored in memory 932 may include one or more modules that each correspond to a set of instructions. Further, processing component 922 is configured to execute instructions to perform any of the methods described above as applied at the base station.

Base station 900 may also include a power component 926 configured to perform power management for base station 900, a wired or wireless network interface 950 configured to connect base station 900 to a network, and an input output (I/O) interface 958. The base station 900 may operate based on an operating system stored in memory 932, such as Windows Server TM, mac OS XTM, unixTM, linuxTM, freeBSDTM, or the like.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. A method for switching cells, applied to a base station, wherein the method comprises:

receiving an acquisition request for acquiring configuration information sent by a terminal;

transmitting the configuration information of the handover cell to the terminal;

the configuration information is used for determining whether to adopt a dual-activation protocol DAPS mode to perform cell switching triggered by a CHO mechanism based on conditional switching; when the time delay of the cell switching service is larger than a time delay threshold, the configuration information indicates that the cell switching triggered based on the CHO mechanism is performed in the DAPS mode.

2. The method of claim 1, wherein the configuration information comprises:

and the scene parameter is used for indicating an application scene of performing cell switching triggered by the CHO mechanism by adopting the DAPS mode.

3. The method of claim 2, wherein the application scenario is configured with a single cell granularity; or the application scene is configured by taking a plurality of cells as granularity.

4. The method of claim 2, wherein the scene parameters include at least one of:

5. The method of claim 4, wherein the service identification comprises one of: a logical channel identity, a quality of service flow identifier QFI or a quality of service identifier 5QI.

6. A method for switching cells, applied to a terminal, wherein the method comprises:

sending an acquisition request for acquiring configuration information to a base station;

receiving the configuration information of the switching cell sent by the base station;

7. The method of claim 6, wherein the configuration information comprises:

8. The method of claim 7, wherein the application scenario is configured with a single cell granularity; or the application scene is configured by taking a plurality of cells as granularity.

9. The method of claim 7, wherein the scene parameters comprise at least one of:

10. The method of claim 9, wherein the service identity comprises one of: a logical channel identity, a quality of service flow identifier QFI or a quality of service identifier 5QI.

11. The method of claim 7, wherein the method further comprises:

responding to an application scene indicated by the scene parameter and not starting a prohibition timer for timing, determining to adopt the DAPS mode to perform the cell switching triggered based on the CHO mechanism;

or,

and responding to an application scene which is not indicated by the scene parameter, and determining that the cell switching triggered based on the CHO mechanism is not performed in the DAPS mode.

12. The method of claim 11, wherein the method further comprises:

And in response to the timing time of the prohibition timer, determining that the DAPS mode is not adopted for cell switching triggered based on the CHO mechanism.

13. The method of claim 6, wherein the method further comprises:

determining whether to adopt the DAPS to carry out a determination result of the cell switching triggered on the basis of the CHO mechanism according to the configuration information;

reporting the indication information carrying the determined result.

14. An apparatus for switching cells is applied to a base station, wherein the apparatus comprises a receiving module and a transmitting module, wherein,

the receiving module is configured to receive an acquisition request sent by the terminal and used for acquiring configuration information;

the sending module is configured to send the configuration information of the switching cell to the terminal;

15. The apparatus of claim 14, wherein the transmitting module is further configured to: the configuration information includes:

16. The apparatus of claim 15, wherein the transmitting module is further configured to: the application scene is configured by taking a single cell as granularity; or the application scene is configured by taking a plurality of cells as granularity.

17. The apparatus of claim 15, wherein the transmitting module is further configured to: the scene parameters include at least one of:

18. The apparatus of claim 17, wherein the transmitting module is further configured to: the service identifier comprises one of the following: a logical channel identity, a quality of service flow identifier QFI or a quality of service identifier 5QI.

19. An apparatus for switching cells is applied to a terminal, wherein the apparatus comprises a transmitting module and a receiving module, wherein,

the sending module is configured to send an acquisition request for acquiring configuration information to the base station;

The receiving module is configured to receive the configuration information of the handover cell sent by the base station;

20. The apparatus of claim 19, wherein the receiving module is further configured to: the configuration information includes:

21. The apparatus of claim 20, wherein the receiving module is further configured to: the application scene is configured by taking a single cell as granularity; or the application scene is configured by taking a plurality of cells as granularity.

22. The apparatus of claim 20, wherein the receiving module is further configured to: the scene parameters include at least one of:

23. The apparatus of claim 22, wherein the receiving module is further configured to: the service identifier comprises one of the following: a logical channel identity, a quality of service flow identifier QFI or a quality of service identifier 5QI.

24. The apparatus of claim 20, wherein the apparatus further comprises a determination module, wherein,

the determination module is configured to:

or,

25. The apparatus of claim 24, wherein the apparatus further comprises a determination module, wherein,

the determination module is configured to:

26. The apparatus of claim 19, wherein the apparatus further comprises a reporting module, wherein,

The determination module is further configured to: determining whether to adopt the DAPS to carry out a determination result of the cell switching triggered on the basis of the CHO mechanism according to the configuration information;

27. A communication device, comprising:

an antenna;

a memory;

a processor, coupled to the antenna and the memory, respectively, configured to control the transceiving of the antenna by executing computer-executable instructions stored on the memory, and to enable the method provided in any one of claims 1 to 5 or 6 to 13.

28. A computer storage medium storing computer executable instructions which, when executed by a processor, enable the method provided in any one of claims 1 to 5 or 6 to 13 to be carried out.