CN112042224A

CN112042224A - Method, device, communication equipment and storage medium for switching cells

Info

Publication number: CN112042224A
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: 2020-12-04
Anticipated expiration: 2040-07-22
Also published as: WO2022016431A1; CN112042224B

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: sending configuration information of a switching cell to a terminal; the configuration information is used for determining whether a dual activation protocol DAPS mode is adopted for cell handover triggered based on a conditional handover CHO mechanism.

Description

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

Technical Field

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

Background

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

In New Radio (NR), with the introduction of various low-latency services, such as telemedicine, smart driving, virtual reality services, and the like, interruption of low latency 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 cell switching.

According to a first aspect of the embodiments of the present disclosure, a method for switching cells is provided, which is applied to a base station, where the method includes:

sending configuration information of a switching cell to a terminal;

the configuration information is used for determining whether a Dual Activation Protocol (DAPS) mode is adopted for cell handover triggered based on a Conditional Handover (CHO) mechanism.

In one embodiment, the configuration information includes:

a context parameter for indicating an application context for performing the cell handover based on the Conditional Handover (CHO) mechanism trigger in the Dual Activation Protocol (DAPS) manner.

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

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

According to a second aspect of the embodiments of the present disclosure, a method for switching a cell is provided, which is 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 parameter includes at least one of:

In one embodiment, the method further comprises:

determining to adopt the Dual Activation Protocol (DAPS) mode for the cell handover triggered based on the Conditional Handover (CHO) mechanism in response to the application scene indicated by the scene parameters and the prohibition timer is not started;

alternatively, the first and second electrodes may be,

in response to an application scenario not being indicated by the scenario parameter, determining not to employ the Dual Activation Protocol (DAPS) approach for the cell handover triggered based on the Conditional Handover (CHO) based mechanism.

In one embodiment, the method further comprises:

determining not to employ the Dual Activation Protocol (DAPS) approach for cell handover triggered based on the Conditional Handover (CHO) mechanism in response to being within a timing time of the prohibit timer.

In one embodiment, the method further comprises:

determining whether to employ the Dual Activation Protocol (DAPS) for the result of the determination of the cell handover based on the Conditional Handover (CHO) -based mechanism trigger according to the configuration information;

and reporting the indication information carrying the determined result.

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

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

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

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

In one embodiment, the sending module is further configured to: the scene parameter comprises at least one of the following:

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

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

the receiving module is configured to receive configuration information of a handover 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 scenario is configured with a plurality of cells as granularity.

In one embodiment, the receiving module is further configured to: the scene parameter comprises at least one of the following:

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

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

the determination module configured to:

alternatively, the first and second electrodes may be,

the determination module configured to:

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

the determination module further configured to: determining whether to employ the Dual Activation Protocol (DAPS) for the result of the determination of the cell handover based on the Conditional Handover (CHO) -based mechanism trigger 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 apparatus, including:

a processor;

a memory for storing the processor-executable instructions;

wherein the processor is configured to: when the executable instructions are executed, the method of any embodiment of the present disclosure is implemented.

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 of the embodiments of the present disclosure.

In the embodiment of the disclosure, the configuration information of the switching cell is sent to the terminal; the configuration information is used for determining whether a Dual Activation Protocol (DAPS) mode is adopted for cell handover triggered based on a Conditional Handover (CHO) mechanism. Thus, firstly, the terminal may perform the cell handover triggered by the Conditional Handover (CHO) mechanism in a Dual Activation Protocol (DAPS) manner, and in the process of performing the cell handover triggered by the Conditional Handover (CHO) mechanism in the Dual Activation Protocol (DAPS) manner, the Radio Resource Control (RRC) connection with the source cell is not disconnected before the terminal establishes the Radio Resource Control (RRC) connection with the target cell, so that the zero delay of the cell handover may be implemented, and the requirement of the low-delay service is met. Secondly, the terminal can determine the cell switching mode based on the configuration information and perform the cell switching in the cell switching mode determined by the configuration information sent by the base station, so that the cell switching mode is more flexible. And the terminal can determine a cell switching mode matched with the service type of the terminal based on the configuration information according to the current service type of the terminal to perform the cell switching compared with the cell switching performed by adopting a single cell switching mode. Due to different time delays brought by different cell switching modes, the method can flexibly adapt to different requirements 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 handing over a cell in accordance with an example embodiment.

Fig. 3 is a flow chart illustrating a method of handing over a cell in accordance with an example embodiment.

Fig. 4 is a flow chart illustrating a method of handing over a cell in accordance with an example embodiment.

Fig. 5 is a flow chart illustrating a method of handing over a cell in accordance with an example embodiment.

Fig. 6 is a flow chart illustrating a method of handing over a cell in accordance with an example embodiment.

Fig. 7 is a flow chart illustrating a method of handing over a cell in accordance with an example embodiment.

Fig. 8 is a diagram illustrating an apparatus for handing over a cell according to an example embodiment.

Fig. 9 is a diagram illustrating an apparatus for handing over a cell according to an example embodiment.

Fig. 10 is a block diagram illustrating a user device in accordance with an example embodiment.

Fig. 11 is a block diagram illustrating a base station in accordance with an example embodiment.

Detailed Description

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

The terminology used in the embodiments of the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present disclosure. As used in the disclosed 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 and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information in the embodiments of the present disclosure, such information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, 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 "when … …" or "in response to a determination", depending on the context.

For the purposes of brevity and ease of understanding, the terms "greater than" or "less than" are used herein when characterizing a size relationship. But it will be understood by those skilled in the art that: 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", based on the respective technical context and solution.

Referring to fig. 1, a schematic structural diagram of a wireless communication system according to an embodiment of the present 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 refer to, 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 (RAN), and the user equipment 110 may be internet of things user equipment, such as a sensor device, a mobile phone (or "cellular" phone), and a computer having the internet of things user equipment, and may be a fixed, portable, pocket, handheld, computer-included, or vehicle-mounted device, for example. For example, a Station (STA), a subscriber unit (subscriber unit), a subscriber Station (subscriber Station), a mobile Station (mobile), a remote Station (remote Station), an access point, a remote user equipment (remote), an access user equipment (access terminal), a user equipment (user terminal), a user agent (user agent), a user equipment (user device), or a user equipment (user equipment). Alternatively, user device 110 may also be a device of an unmanned aerial vehicle. Alternatively, the user device 110 may also be a vehicle-mounted device, for example, a vehicle computer with a wireless communication function, or a wireless user device externally connected to the vehicle computer. Alternatively, the user device 110 may be a roadside device, for example, a street lamp, a signal lamp or other roadside device with a wireless communication function.

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

The base station 120 may be an evolved node b (eNB) used in a 4G system. Alternatively, the base station 120 may be a base station (gNB) adopting a centralized distributed architecture in the 5G system. When the base station 120 adopts a centralized distributed architecture, it generally includes a Centralized Unit (CU) and at least two Distributed Units (DUs). A Packet Data Convergence Protocol (PDCP) layer, a Radio Link layer Control Protocol (RLC) layer, and a Media Access Control (MAC) layer are provided in the central unit; a Physical (PHY) layer protocol stack is disposed in the distribution unit, and the embodiment of the present disclosure does not limit the specific implementation manner of the base station 120.

The base station 120 and the user equipment 110 may establish a radio connection over a radio air interface. In various embodiments, the wireless air interface is based on a fourth generation mobile communication network technology (4G) standard; or the wireless air interface is 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 next generation mobile communication network technology standard.

In some embodiments, an E2E (End to End) connection may also be established between user devices 110. Scenarios such as V2V (vehicle to vehicle) communication, V2I (vehicle to Infrastructure) communication, and V2P (vehicle to vehicle) communication in vehicle networking communication (V2X).

Here, the user equipment described above may be regarded as the terminal equipment of the following embodiments.

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

Several base stations 120 are connected to the network management device 130, respectively. 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 (MME) in an Evolved Packet Core (EPC). Alternatively, the Network management device may also be other core Network devices, such as a Serving GateWay (SGW), a Public Data Network GateWay (PGW), a Policy and Charging Rules Function (PCRF), a Home Subscriber Server (HSS), or the like. The implementation form of the network management device 130 is not limited in the embodiment of the present disclosure.

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

In the cell handover process, after receiving a cell handover command, the terminal disconnects Radio Resource Control (RRC) 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 process to the target cell and sending a Radio Resource Control (RRC) reconfiguration complete message to the target base station. Data transmission by the terminal is interrupted before a Radio Resource Control (RRC) connection is successfully established with the target cell, which may result in a delay in traffic. In order to realize the zero-delay requirement of the service in the switching process, a Dual Active Protocol (DAPS) is introduced. After receiving a Dual Activation Protocol (DAPS) handover command, the terminal will continue to maintain 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, the fifth generation mobile communication (5G) proposes a Conditional Handover (CHO) based method, that is, the network may configure a candidate cell which can be a target cell and a handover trigger condition for the terminal in advance. When the switching triggering condition is met, the terminal automatically initiates a switching process to switch to a target cell selected from the alternative cells, and the network does not need to send a switching command 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 handover trigger conditions may include A3 and a5 events. The event A3 is that the channel quality of the neighboring cell is higher than the value set by the serving cell, the event A5 is that the channel quality of the neighboring cell is higher than a first set threshold, and the channel quality of the serving cell is lower than a second set threshold. This can reduce radio link failure due to too late a time for the base station to transmit the handover command. However, the cell handover scheme based on Conditional Handover (CHO) and the cell handover scheme based on Dual Activation Protocol (DAPS) cannot be simultaneously configured to the terminal. Such as virtual reality type traffic, requires low latency to support the traffic, as well as extremely high robustness. The Conditional Handover (CHO) -based cell handover procedure may be interrupted.

As shown in fig. 2, the present embodiment provides a method for switching cells, 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 a Dual Activation Protocol (DAPS) mode is adopted for cell handover triggered based on a conditional access (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.

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

In one embodiment, the base station may determine an alternative cell that the terminal can handover to when performing cell handover, which may be a target cell, and send a Conditional Handover (CHO) -based command to the terminal. Wherein, the command based on Conditional Handover (CHO) can carry the cell information of the candidate cell which can be used as the target cell and the cell handover triggering condition. Here, different cell handover triggering conditions may be set for different candidate cells. When the switching triggering condition is met, the terminal automatically initiates a switching process to switch to a target cell selected from the alternative cells, and the base station does not need 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 finished, the terminal measures the corresponding parameters of the configured measurement event. And when the measurement result meets the switching triggering condition, the terminal automatically initiates a cell switching process.

In one embodiment, the measurement event may include at least one of: an a1 event, an a2 event, an A3 event, an a4 event, an a5 event, a B1 event, and a B2 event. It should be noted that other measurement events may also 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 terminal is configured with an a1 event by a source cell (here, the source cell may be a cell serving the terminal), the terminal needs to measure whether the signal quality of the source cell is higher than a first threshold; when the source cell signal quality is above the first threshold, the handover triggering condition of the a1 event is satisfied. 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 that of the source cell; and when the signal measurement corresponding to the adjacent cell is higher than the signal quality of the source cell, determining that the switching triggering condition of the A3 event is met.

In one embodiment, the source cell may configure the terminal with multiple measurement events. For example, the source cell may configure the terminal with an A3 event and an a5 event. The event A3 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 of A5 is that the signal quality of the neighboring cell is higher than a second set threshold and the channel quality of the source cell is lower than a third set threshold.

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

In one embodiment, the base station transmits the configuration information via a broadcast message; alternatively, the base station transmits the configuration information through a Radio Resource Control (RRC) reconfiguration message. Thus, the configuration information is sent through the existing broadcast message or Radio Resource Control (RRC) reconfiguration message, and the signaling compatibility of the broadcast message or the RRC reconfiguration message is improved.

In one embodiment, the Radio Resource Control (RRC) reconfiguration message may include Radio Resource Control (RRC) connection reconfiguration (RRCConnectionReconfiguration) signaling 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, the base station sends configuration information for an acquisition request to the terminal in response to the received acquisition request for acquiring the configuration information sent by the terminal.

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

In one embodiment, when a 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 a base station, and the base station sends the configuration information to the terminal according to the acquisition request after receiving the acquisition request. Here, when the terminal needs to transmit the service data whose delay requirement is smaller than the set delay threshold, the terminal may request the configuration information from the base station in time according to the delay requirement, and perform cell handover triggered based on a conditional access (CHO) mechanism in time by using a Dual Activation Protocol (DAPS) mode with a small delay according to an indication of the configuration information. Therefore, the time delay caused 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, the base station sends the configuration information to the terminal in response to the terminal establishing a Radio Resource Control (RRC) connection with the base station. Here, the terminal can obtain the configuration information in time after establishing Radio Resource Control (RRC) connection with the base station, so that the terminal can perform service transmission in time in a cell switching manner matching with a delay requirement of service transmission when service transmission needs to be performed between the terminal and the base station after the base station establishes the Radio Resource Control (RRC) connection.

In one embodiment, the configuration information includes:

and the scene parameter is used for indicating an application scene for cell handover triggered based on a Conditional Handover (CHO) mechanism by adopting 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 neighbor cell is within the second signal range, and/or the terminal is currently transmitting data setting the traffic 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 type B, so that it can be determined that the corresponding application scenario is the first scenario. For another example, the signal strength of the serving cell of the terminal is less than C, the signal strength of the neighboring cell is greater than D, and the terminal transmits the E-type service data, so that it can be determined that the corresponding application scenario is 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 values x in the first signal range are a1< x < a 2; the second signal range is [ B1, B2], and the signal intensity value y in the second signal range is B1< y < B2. Where a2< B1, it may be determined that the corresponding application scenario may be an application scenario that triggers the terminal to switch to the neighbor cell when the terminal measures that the signal strength value x1 of the serving cell of the terminal is within the first signal range and the signal strength value y1 of the neighbor cell is within the second signal range.

In one embodiment, under different application scenarios, cell handover may be performed in different manners. For example, in a first scenario, a Dual Activation Protocol (DAPS) manner is adopted for 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 based on a Conditional Handover (CHO) mechanism. Here, the configuration information indicates, through the context parameter, an application context for performing a cell handover triggered based on a Conditional Handover (CHO) mechanism in a Dual Activation Protocol (DAPS) manner. In a third scenario, the following cell switching method may be adopted, and the method of the cell switching method includes: the terminal receives the switching command of the base station, 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, it should be noted that, with this cell switching method, data transmission of the terminal is interrupted before the connection is successfully established with the target cell.

Here, the cell may be an alternative cell to which the terminal may handover as a target cell.

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

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

In one embodiment, the plurality of cells may be all cells in one network. Therefore, more candidate cells can be selected by the terminal during cell switching, and the terminal can more easily acquire the candidate cells as target cells to perform cell switching. In another embodiment, the plurality of cells may be a plurality of cells within one Tracking Area (TA). Therefore, the cell search range of the terminal can be reduced, and the terminal can quickly acquire the alternative cell as the target cell to perform cell switching.

In one embodiment, the application scenarios are configured at a granularity of multiple cells. The application scenarios in which cell a, cell B and cell C are configured may be the same. For example, the application scenarios configuring cell a, cell B, and cell C are all d scenarios.

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

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 a terminal corresponding to an application scenario;

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 consistent with the channel condition, and the cell switching mode can be accurately selected.

Please refer to table one, a threshold value of 1 is associated with a cell a; a threshold value of 2 is associated with a cell B; threshold 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 a cell handover method. For example, when the terminal determines that the serving cell of the terminal is cell a, it may be determined that the threshold used in cell handover is threshold 1.

Watch 1

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

In one embodiment, the service identifier includes one of: a logical channel identification, 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 service transmitted between the terminal and the base station. In one embodiment, different traffic types have different latencies. For example, the service identifier a indicates that the service type of the service a is the first service type. And the delay requirement of the a service is that the delay is less than m. Such as telemedicine and intelligent driving. For another example, the service identifier B indicates that the service type of the service B is the second service type. And the time delay requirement of the b service is that the time delay is greater than m. For example, services such as intelligent meter reading and the like.

In the embodiment of the present disclosure, first, the terminal may perform cell handover triggered by a Conditional Handover (CHO) mechanism in a Dual Activation Protocol (DAPS) manner, and in the process of performing cell handover triggered by the Conditional Handover (CHO) mechanism in the Dual Activation Protocol (DAPS) manner, before establishing Radio Resource Control (RRC) connection between the terminal and a target cell, Radio Resource Control (RRC) connection with a source cell is not disconnected, so that zero delay of cell handover may be implemented, and a requirement of a low-delay service is met. Secondly, the terminal can determine the cell switching mode based on the configuration information and perform cell switching by adopting the cell switching mode determined by the configuration information sent by the base station, so that the cell switching mode is more flexible. Compared with 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 current service type of the terminal to perform the cell switching. Due to different time delays brought by different cell switching modes, the method can flexibly adapt to different requirements 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 a cell, 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 an embodiment, the cell handover triggered by the Conditional Handover (CHO) mechanism in the Dual Activation Protocol (DAPS) manner may be self-initiated by the terminal in the Dual Activation Protocol (DAPS) manner when the handover triggering condition of the Conditional Handover (CHO) mechanism is satisfied. Here, the terminal maintains a connection with the source cell after receiving a Dual Activation Protocol (DAPS) handover command, and simultaneously initiates a random access procedure to the target cell. After successfully establishing a connection with the target cell, the target cell instructs the terminal to disconnect a Radio Resource Control (RRC) connection with the source cell. Thus, the service delay caused by the interruption of the data transmission of the terminal before the connection with the target cell is successfully established is reduced.

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

In one embodiment, the Radio Resource Control (RRC) reconfiguration message may include Radio Resource Control (RRC) connection reconfiguration (RRCConnectionReconfiguration) signaling carrying configuration information. The terminal receives configuration information transmitted through Radio Resource Control (RRC) connection reconfiguration (RRCConnectionReconfiguration) signaling. Therefore, the configuration information can be carried by the existing Radio Resource Control (RRC) signaling, the multiplexing of the Radio Resource Control (RRC) signaling is realized, and the compatibility of the signaling is improved.

In one embodiment, the configuration information includes:

In one embodiment, under different application scenarios, cell handover may be performed in different manners. For example, in a first scenario, a Dual Activation Protocol (DAPS) manner is adopted for 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 based on a Conditional Handover (CHO) mechanism. Here, the configuration information indicates, by using a context parameter, an application context for performing a cell handover based on a Conditional Handover (CHO) mechanism trigger in a Dual Activation Protocol (DAPS) manner. In a third scenario, the following cell switching method may be adopted, and the method of the cell switching method includes: the terminal receives the switching command of the base station, 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, it should be noted that, with this cell switching method, data transmission of the terminal is interrupted before the connection is successfully established with the target cell.

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

In one embodiment, the application scenarios are configured at a granularity of multiple cells. The application scenarios in which cell a, cell B and cell C are configured may be the same. For example, the application scenarios configured for cell a, cell B, and cell C are all d scenarios. The a scene, the b scene, and the c scene may be the same or different. In short, the application scenarios of different cells are independent of each other.

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

Referring to table one again, threshold 1 is associated with cell a; a threshold value of 2 is associated with a cell B; threshold 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 a cell handover method. For example, when the terminal determines that the serving cell of the terminal is cell a, it may be determined that the threshold used in cell handover is threshold 1.

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

step 41, in response to the application scenario indicated by the scenario parameter and the timing of the prohibit timer is not started, determining to perform cell handover triggered based on a conditional access (CHO) mechanism by using a Dual Activation Protocol (DAPS) mode;

alternatively, the first and second electrodes may be,

and in response to the application scene not indicated by the scene parameters, determining not to adopt a Dual Activation Protocol (DAPS) mode for cell handover triggered by a Conditional Handover (CHO) mechanism.

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

Here, when the terminal performs radio link detection and continuously receives the first set number of downlink out-of-step indications, the start of the T310 timer is triggered. And if the downlink synchronization indication of the second set number is continuously received in the timing process of the T310 timer, stopping the T310 timer and indicating the synchronization recovery of the wireless link. 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. It should be noted that, here, the start-up may include an initial start-up and a repeated start-up.

In one embodiment, under different application scenarios, cell handover may be performed in different manners. For example, in a first scenario, a Dual Activation Protocol (DAPS) manner is adopted for 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 based on a Conditional Handover (CHO) mechanism. Here, the configuration information indicates, through the context parameter, an application context for performing the cell handover triggered based on the CHO mechanism in the DAPS manner.

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

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

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

Here, the cell handover triggered by the conditional handover CHO mechanism in the Dual Activation Protocol (DAPS) manner may be initiated by the terminal itself when a handover triggering 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 the source cell after receiving a Dual Activation Protocol (DAPS) handover command, and simultaneously initiates a random access procedure to the target cell. After successfully establishing a connection with the target cell, the target cell instructs the terminal to disconnect a Radio Resource Control (RRC) connection with the source cell. Therefore, the service delay caused by the interruption of data transceiving of the terminal before the connection with the target cell is successfully established is reduced.

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

and step 51, in response to the timing time of the prohibition timer, determining not to adopt a Dual Activation Protocol (DAPS) mode for cell handover triggered by a Conditional Handover (CHO) mechanism.

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 is overtime, if the terminal detects that the physical layer fault is recovered, or the switching process is triggered, or the terminal initiates a Radio Resource Control (RRC) reestablishment process, 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 handover triggered by the Conditional Handover (CHO) mechanism without using a Dual Activation Protocol (DAPS) manner may be cell handover using a Conditional Handover (CHO) based mechanism.

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

step 61, determining whether a Double Activation Protocol (DAPS) is adopted to perform the cell switching determination result triggered based on a conditional access (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, through a context parameter, an application context for a Conditional Handover (CHO) -based cell handover triggered by a Dual Activation Protocol (DAPS) scheme.

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

In one embodiment, under different application scenarios, cell handover may be performed in different manners. For example, in a first scenario, a Dual Activation Protocol (DAPS) manner is adopted for 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 in a Dual Activation Protocol (DAPS) manner, but is performed in a non-Dual Activation Protocol (DAPS) manner. In a third scenario, the following cell switching method may be adopted, and the method of the cell switching method includes: the terminal receives the switching command of the base station, 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, it should be noted that, with this cell switching method, data transmission of the terminal is interrupted before the connection is successfully established with the target cell.

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

In one embodiment, the indication information is carried in a Radio Resource Control (RRC) reconfiguration complete message. Therefore, the existing Radio Resource Control (RRC) reconfiguration complete message can be used for carrying the indication information, the multiplexing of the Radio Resource Control (RRC) reconfiguration complete message is realized, and the 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.

Example 1

Referring to fig. 7, the present embodiment provides a method for switching a cell, including:

step s1, the terminal in cell 1 receives the configuration information of the handover cell sent by the base station in cell 1; the configuration information is used for determining whether a Dual Activation Protocol (DAPS) mode is adopted for cell handover triggered based on a conditional access (CHO) mechanism. The configuration information comprises parameter information that the signal intensity of the adjacent cell is 3db higher than that of the serving cell, a threshold value of 97db, a logical channel identifier of 6 and an identifier of an alternative cell 2 which can be used as a target cell.

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

Step s3, the terminal keeps the connection with the cell 1, and at the same time, initiates the random access process to the cell 2, and carries the result information of the cell switching triggered by the conditional access (CHO) mechanism based on the Dual Activation Protocol (DAPS) mode with the switching type indication 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 cell 2 recognizes that the handover is a cell handover triggered by a Conditional Handover (CHO) mechanism in a Dual Activation Protocol (DAPS) manner, and sends a release instruction to the terminal to instruct the terminal to release the Radio Resource Control (RRC) connection with the source cell.

In the embodiment of the present disclosure, first, the terminal may perform cell handover triggered by a Conditional Handover (CHO) mechanism in a Dual Activation Protocol (DAPS) manner, and in the process of performing cell handover triggered by the Conditional Handover (CHO) mechanism in the Dual Activation Protocol (DAPS) manner, before establishing Radio Resource Control (RRC) connection between the terminal and a target cell, Radio Resource Control (RRC) connection with a source cell is not disconnected, so that zero delay of cell handover may be implemented, and a requirement of a low-delay service is met. Secondly, the terminal can determine the cell switching mode based on the configuration information and perform cell switching by adopting the cell switching mode determined by the configuration information sent by the base station, so that the cell switching mode is more flexible. Compared with 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 perform the cell switching. Due to different time delays brought by different cell switching modes, the method can flexibly adapt to different requirements of various services on the time delay, and brings good experience to users.

As shown in fig. 8, the present embodiment provides a device for switching cells, which is applied to a base station, wherein the device includes a transmitting module 81, wherein,

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, including:

In one embodiment, the sending module 81 is further configured to: the application scene is configured by taking a single cell as granularity; or, 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: a service identity comprising one of: logical channel identification, quality of service flow identifier (QFI), or quality of service identifier (5 QI).

As shown in fig. 9, the present embodiment provides an apparatus for switching cells, 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, including:

In one embodiment, the receiving module 91 is further configured to: the application scene is configured by taking a single cell as granularity; or, 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: a service identity comprising one of: logical channel identification, quality of service flow identifier (QFI), or quality of service identifier (5 QI).

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

a determination module 92 configured to:

in response to an application scene indicated by a scene parameter and the timing of a prohibition timer is not started, determining to adopt a Dual Activation Protocol (DAPS) mode to perform cell handover triggered based on a Conditional Handover (CHO) mechanism;

alternatively, the first and second electrodes may be,

a determination module 92 configured to:

and in response to the timing time of the prohibition timer, determining not to adopt a Dual Activation Protocol (DAPS) mode for cell handover triggered by a Conditional Handover (CHO) mechanism.

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

a determination module 92, further configured to: determining whether a Dual Activation Protocol (DAPS) is adopted to perform a cell handover result triggered based on a Conditional Handover (CHO) mechanism according to the configuration information;

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

With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.

The disclosed embodiment provides a communication device, which includes:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to: when used to execute executable instructions, implement the methods applied to any embodiment 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 remember the information stored thereon after a power loss to the communication device.

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

The embodiment of the present disclosure further provides a computer storage medium, wherein the computer storage medium stores a computer executable program, and the executable program is executed by a processor to implement the method according to any embodiment of the present disclosure. .

Fig. 10 is a block diagram illustrating a User Equipment (UE)800 according to an example embodiment. For example, user device 800 may be a mobile phone, a computer, a digital broadcast user device, a messaging device, a gaming console, a tablet device, a medical device, an exercise device, a personal digital assistant, and so forth.

Referring to fig. 10, user device 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and 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 components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction 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.

Memory 804 is configured to store various types of data to support operations at user device 800. Examples of such data include instructions for any application or method operating on user device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile 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 disks.

The power component 806 provides power to the various components of the user device 800. 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 user device 800.

The multimedia component 808 comprises a screen providing an output interface between the user device 800 and the user. 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 an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the user equipment 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 a focal length and optical zoom capability.

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 further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also 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 keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

Sensor component 814 includes one or more sensors for providing various aspects of state assessment for user device 800. For example, sensor assembly 814 may detect an open/closed state of device 800, the relative positioning of components, such as a display and keypad of user device 800, sensor assembly 814 may also detect a change in the position of user device 800 or a component of user device 800, the presence or absence of user contact with user device 800, the orientation or acceleration/deceleration of user device 800, and a change in the temperature of user device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object 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 gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

Communications component 816 is configured to facilitate communications between user device 800 and other devices in a wired or wireless manner. The user equipment 800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an 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, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

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

As shown in fig. 11, an embodiment of the present disclosure illustrates a structure of a base station. For example, the base station 900 may be provided as a network side device. Referring to fig. 11, base station 900 includes a processing component 922, which further includes one or more processors and memory resources, represented by memory 932, for storing instructions, such as applications, that are 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 to the base station.

The base station 900 may also include a power supply component 926 configured to perform power management of the base station 900, a wired or wireless network interface 950 configured to connect the 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 invention 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 will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made 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 is applied to a base station, wherein the method comprises the following steps:

sending configuration information of a switching cell to a terminal;

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

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

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

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

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

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

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

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

8. The method of claim 7, wherein the application scenarios are configured at a single cell granularity; or, the application scenario is configured with 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 identifier comprises one of: logical channel identification, quality of service flow identifier QFI or quality of service identifier 5 QI.

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

determining to adopt the DAPS mode to perform the cell handover triggered based on the CHO mechanism in response to the application scene indicated by the scene parameters and the timing of a prohibition timer is not started;

alternatively, the first and second electrodes may be,

and in response to the application scene not indicated by the scene parameters, determining not to adopt the DAPS mode to perform the cell handover triggered based on the CHO mechanism.

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

and in response to the fact that the cell is within the timing time of the prohibition timer, determining not to adopt the DAPS mode to perform the 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 perform the cell switching determination result triggered based on the CHO mechanism according to the configuration information;

and reporting the indication information carrying the determined result.

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

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 scenario is configured with a plurality of cells as granularity.

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

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

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

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 scenario is configured with a plurality of cells as granularity.

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

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

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

the determination module configured to:

alternatively, the first and second electrodes may be,

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

the determination module configured to:

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

the determination module further configured to: determining whether to adopt the DAPS to perform the cell switching determination result triggered based on 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 transceiving of the antenna by executing computer-executable instructions stored on the memory, and to implement the method provided by any one of claims 1 to 5 or 6 to 13.

28. A computer storage medium storing computer-executable instructions capable of implementing the method provided by any one of claims 1 to 5 or 6 to 13 when executed by a processor.