CN114143842A

CN114143842A - Cell access method and device

Info

Publication number: CN114143842A
Application number: CN202111341601.5A
Authority: CN
Inventors: 刘旭
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-03-04
Anticipated expiration: 2041-11-12
Also published as: CN114143842B

Abstract

The application discloses a cell access method and a cell access device, belongs to the technical field of communication, and can solve the problem of influencing normal data receiving and sending of UE. The method comprises the following steps: under the condition that User Equipment (UE) is switched from a source cell to a target cell, acquiring a first parameter of the target cell; initiating link recovery on the source cell if the target cell is determined to be a non-suitable cell based on the first parameter. The method can be applied to the scene of switching the cell by the UE.

Description

Cell access method and device

Technical Field

The present application belongs to the field of communications technologies, and in particular, to a cell access method and apparatus.

Background

At present, after a User Equipment (UE) randomly accesses a target cell, the UE may send uplink data to the target cell and may also receive downlink data sent by the target cell. However, after the UE accesses the target cell, if the signal quality of the target cell is degraded, the UE may not transmit uplink data to the target cell, or the UE may not receive downlink data transmitted by the target cell, thereby causing a problem that the UE normally receives and transmits data.

Disclosure of Invention

The embodiment of the application aims to provide a cell access method and a cell access device, which can solve the problem of influencing normal data receiving and sending of UE.

In a first aspect, an embodiment of the present application provides a cell access method, where the method includes: under the condition that User Equipment (UE) is switched from a source cell to a target cell, acquiring a first parameter of the target cell; initiating link recovery on the source cell if the target cell is determined to be a non-suitable cell based on the first parameter.

In a second aspect, an embodiment of the present application provides a cell access apparatus, including: the device comprises an acquisition module and a processing module. An obtaining module, configured to obtain a first parameter of a target cell when a user equipment UE is handed over from a source cell to the target cell. And the processing module is used for initiating link recovery on the source cell under the condition that the target cell is determined to be the unsuitable cell according to the first parameter acquired by the acquisition module.

In a third aspect, embodiments of the present application provide an electronic device, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor, where the program or instructions, when executed by the processor, implement the steps of the method as in the first aspect.

In a fourth aspect, embodiments of the present application provide a readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the method as in the first aspect described above.

In a fifth aspect, embodiments of the present application provide a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the method as in the first aspect.

In the embodiment of the application, under the condition that User Equipment (UE) is switched from a source cell to a target cell, a first parameter of the target cell is obtained; initiating link recovery on the source cell if the target cell is determined to be a non-suitable cell based on the first parameter. By the scheme, after the first parameter of the target cell is acquired under the condition that the UE is switched from the source cell to the target cell, because the link recovery can be initiated on the source cell under the condition that the target cell is determined to be the unsuitable cell according to the first parameter, the UE can normally receive and transmit data in the source cell after the wireless link between the UE and the source cell is successfully recovered.

Drawings

Fig. 1 is a schematic network architecture of a communication system according to an embodiment of the present application;

fig. 2 is a schematic diagram of a cell access method according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a cell access apparatus according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 5 is a hardware schematic diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," should not be construed as advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

In the description of the embodiments of the present application, unless otherwise specified, "a plurality" means two or more, for example, a plurality of elements means two or more elements, and the like.

Some terms/nouns referred to in the embodiments of the present application are explained below.

Daps (dual Active Protocol stack): is a handover process, and is mainly used in the cell handover process of the fifth Generation wireless communication network (5-Generation, 5G). When the DAPS handover is used, the data transmission is delayed for 0ms when the 5G cells are handed over, namely the DAPS can be applied to a low-delay handover scene.

The embodiment of the application provides a cell access method and a device, wherein a first parameter of a target cell is obtained when User Equipment (UE) is switched from a source cell to the target cell; initiating link recovery on the source cell if the target cell is determined to be a non-suitable cell based on the first parameter. By the scheme, after the first parameter of the target cell is acquired under the condition that the UE is switched from the source cell to the target cell, because the link recovery can be initiated on the source cell under the condition that the target cell is determined to be the unsuitable cell according to the first parameter, the UE can normally receive and transmit data in the source cell after the wireless link between the UE and the source cell is successfully recovered.

The cell access method and the cell access device provided by the embodiment of the application can be applied to a communication system. Fig. 1 is a schematic diagram illustrating a network architecture of a possible communication system according to an embodiment of the present application. Wherein the communication system comprises at least one terminal 10, one base station 20 and one base station 30, and one core network device 40, and each base station 20 or base station 30 may communicate with one or more terminals 10. In practical applications, the connection between the above devices may be a wireless connection.

It should be noted that fig. 1 may be specifically applied to a scenario of cell access. In order to intuitively represent the connection relationship between the devices, the solid line in fig. 1 refers to a target cell to which the electronic device is currently connected; the dotted line refers to the source cell accessed by the electronic device before handover.

In the embodiments of the present application, the base station may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems using different radio access technologies, the names of devices that function as base stations may differ. For example, in a 5G system, it may be referred to as a 5G base station (gNB); in a 4G system, such as a Long Term Evolution (LTE) system, it may be referred to as an evolved NodeB (eNB); in a 3G system, it may be referred to as a base station (Node B). As communication technology evolves, the name "base station" may change.

The cell method, the cell device, and the electronic device provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

As shown in fig. 2, an embodiment of the present application provides a cell access method, which is applied to a UE. The method includes the following S101 and S102.

S101, under the condition that User Equipment (UE) is switched from a source cell to a target cell, a cell access device acquires a first parameter of the target cell.

The user equipment UE in the embodiment of the present application may be an electronic device with an operating system, such as a mobile phone. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.

It should be noted that the network device may be a network device corresponding to a target cell currently accessed by the UE, for example, the network device may be a base station 20 or a core network device 40 shown in fig. 1.

Optionally, when the UE is in a moving state, the source cell is one of cells searched by the UE when the UE is located at the first location, and the target cell is one of cells searched by the UE when the UE moves from the first location to the second location.

Optionally, the first parameter may be a parameter including at least one of: data transmission delay when data transmission is performed between the UE and the target cell, data transmission rate when data transmission is performed between the UE and the target cell, and signal strength of the target cell.

S102, under the condition that the target cell is determined to be the unsuitable cell according to the first parameter, the cell access device initiates link recovery on the source cell.

For example, taking the first parameter as the data transmission delay when data transmission is performed between the UE and the target cell as an example, if the first parameter is greater than or equal to the preset threshold, the cell access apparatus determines that the target cell is an unsuitable cell. In this way, since the data transmission delay during data transmission between the UE and the target cell is long, the signal quality of the target cell is poor compared with that of the source cell, so that the UE initiates link recovery on the source cell to re-access the source cell.

It should be noted that, in the case that the first parameter is data transmission delay during data transmission between the UE and the target cell, if the first parameter is larger, the data transmission rate during data transmission between the UE and the target cell is slower; on the contrary, if the first parameter is smaller, the data transmission rate when the UE transmits data to the target cell is faster. Therefore, the data transmission speed between the UE and the target cell during data transmission is reflected through the size of the first parameter.

Illustratively, the first parameter is a data transmission rate when data transmission is performed between the UE and the target cell. Under the condition that User Equipment (UE) is switched from a source cell to a target cell, if the UE sends uplink data to the target cell, a first parameter is a data transmission rate when the UE sends the uplink data to the target cell; or, if the UE receives the downlink data sent by the target cell, the first parameter is a data transmission rate when the UE receives the downlink data sent by the target cell.

It should be noted that, in the case that the first parameter is a data transmission rate when data is transmitted between the UE and the target cell, if the first parameter is larger, the data transmission rate when data is transmitted between the UE and the target cell is faster; on the contrary, if the first parameter is smaller, the data transmission rate when the UE transmits data to the target cell is slower. Therefore, the data transmission speed between the UE and the target cell during data transmission is reflected through the size of the first parameter. For the first parameter being the data transmission rate when data transmission is performed between the UE and the target cell, reference may be made to the detailed description in the following embodiments, which are not repeated herein.

Illustratively, the link recovery initiated on the source cell may be: radio resource link recovery (RRC) Resume.

Optionally, in a case that the network reconfiguration message includes resource configuration information of the target cell, after the step S102, the cell access method provided in the embodiment of the present application may further include: after successfully restoring the radio link with the source cell, the cell access device deletes the resource configuration information of the target cell. Therefore, the UE can normally receive and transmit data in the source cell so as to ensure that the data service of the UE is not interrupted.

Optionally, the resource configuration information of the target cell may include other configuration information such as radio configuration information and security configuration information.

Optionally, the foregoing embodiment is exemplarily illustrated by an example of successfully recovering a radio link between the UE and the source cell, and the embodiment of the present application further provides another implementation manner: after the radio link between the UE and the source cell fails to recover, the cell access device continues to access the target cell. Therefore, the UE can be ensured to be accessed into the cell at any time, so that the communication and data service of the UE are not influenced.

Optionally, the first parameter may include a first sub-parameter and a second sub-parameter, the first sub-parameter is used to indicate a data transmission rate when data is transmitted between the UE and the target cell, and the second sub-parameter is used to indicate a signal quality of the target cell. Correspondingly, after S101 and before S102, the cell access method provided in the embodiment of the present application may further include S103.

S103, if the first sub-parameter is smaller than or equal to a first threshold value and the second sub-parameter is smaller than or equal to a second threshold value, the cell access device determines that the target cell is a non-suitable cell.

Optionally, the first threshold and the second threshold may be any one of the following: protocol specified, vendor pre-configured, network device configured, electronic device configured.

It can be understood that, in the case that the first parameter includes a first sub-parameter and a second sub-parameter, when the first sub-parameter is less than or equal to the first threshold, the signal quality of the target cell is poor, thereby affecting transmission of uplink and downlink data between the UE and the target cell. Further, the signal quality of the target cell may be continuously determined according to the second sub-parameter.

Optionally, the second sub-parameter may include any one of: signal strength, signal-to-noise ratio, reference signal received power, reference signal received quality, etc.

It should be noted that the larger the second sub-parameter is, the better the signal quality of the target cell is; conversely, the smaller the second sub-parameter, the worse the signal quality of the target cell. Thus, the signal quality of the target cell can be judged by the second parameter.

Optionally, before the step S103, the cell access method provided in the embodiment of the present application may further include: the cell access device determines whether the first sub-parameter is less than or equal to a first threshold value. If yes, executing the step S103; otherwise, if the first sub-parameter is greater than the first threshold, the cell access device deletes the resource configuration information of the source cell.

Optionally, for the description of the resource configuration information of the source cell, reference may be made to the detailed description of the resource configuration information of the target cell in the foregoing embodiment, and details are not described in this embodiment of the application again.

It can be understood that, when the first sub-parameter is greater than the first threshold, the data transmission rate when data transmission is performed between the UE and the target cell is faster, that is, the target cell is a suitable cell, so that the UE can normally receive downlink data in the target cell and send uplink data in the target cell. In this way, the resource configuration information of the source cell may be deleted to release the transmission resource of the source cell.

In addition, when the second sub-parameter is less than or equal to the second threshold, the signal quality of the target cell is poor, so that uplink and downlink data transmission between the UE and the target cell is affected, that is, the target cell is a non-suitable cell, thereby causing a problem that the UE fails to receive and transmit data. As such, the UE may initiate link recovery at the source cell to fallback to the source cell.

For example, in the case of a handover of the UE from the source cell to the target cell, the UE may acquire a first parameter, which includes a first sub-parameter and a second sub-parameter. If the first sub-parameter is smaller than the first threshold, it indicates that the data transmission rate is slow when data transmission is performed between the UE and the target cell. Further, if the second sub-parameter is smaller than the second threshold, it indicates that the signal quality of the target cell is worse than that of the source cell, that is, the UE may have a problem of data transmission and reception failure in the target cell, and the target cell is not suitable for the UE to camp on, so that the UE may determine that the target cell is a non-suitable cell and initiate link recovery on the source cell. Further, after the radio link with the source cell is successfully restored, the UE may re-access the source cell, so that the UE may transceive data in the source cell.

The embodiment of the application provides a cell access method, wherein after a first parameter of a target cell is acquired when a UE is switched from a source cell to the target cell, since link recovery can be initiated on the source cell under the condition that the target cell is determined to be an unsuitable cell according to the first parameter, the UE can normally receive and transmit data in the source cell after a wireless link between the UE and the source cell is successfully recovered.

Optionally, before the foregoing S101, the cell access method provided in this embodiment of the present application may further include the following S104 to S107.

And S104, under the condition that the signal quality parameter of the source cell is determined to be smaller than the preset threshold value, the cell access device sends a request message to the network equipment.

Wherein, the request message is used for requesting to switch the cell.

Optionally, the preset threshold may be any one of the following: protocol specified, vendor pre-configured, network device configured, electronic device configured.

It can be understood that, when the signal quality parameter of the source cell is smaller than the preset threshold, it indicates that the signal quality of the source cell is poor, and thus the rate of the UE transceiving data in the source cell is slow. Thus, the UE may send a request message to the network device to switch cells.

Optionally, before the step S104, the cell access method provided in the embodiment of the present application may further include: under the condition that the UE is accessed to the source cell, the cell access device acquires the signal quality parameter of the source cell. Therefore, the quality of the signal of the source cell can be judged according to the signal quality parameter.

S105, the cell access device receives a network reconfiguration message sent by the network equipment.

The network reconfiguration message is used for indicating the UE to be switched to the target cell.

S106, the cell access device switches from the source cell to the target cell according to the network reconfiguration message.

For example, in a case where the UE accesses a source cell, if the UE determines that a signal quality parameter of the source cell is less than a preset threshold, the UE may send a request message to the network device. After the UE receives the network reconfiguration message sent by the network device, the UE may switch from the source cell to the target cell according to the network reconfiguration message.

Optionally, after S106, the cell access method provided in the embodiment of the present application further includes: the cell access device receives downlink data in the target cell and transmits uplink data in the target cell. I.e. normal data transmission between the UE and the target cell is possible.

S107, under the condition that the network reconfiguration message comprises the target identification, the cell access device receives downlink data from the source cell.

The target identifier is used for indicating that the UE is in a DAPS handover procedure of a dual activation protocol stack.

Illustratively, the target identification may be dapsConfig. And when the network reconfiguration message comprises the dapsConfig identifier, indicating that the switching process of the UE from the source cell to the target cell is a DAPS switching process of a dual-activation protocol stack.

It should be noted that, when the UE is in the dual activation protocol stack DAPS handover procedure, for the fifth generation wireless communication network and the nth generation wireless communication network thereafter, even if the UE is handed over from the source cell to the target cell, the UE may receive downlink data in the source cell.

According to the cell access method provided by the embodiment of the application, under the condition that the quality parameter of the source cell currently accessed by the UE is smaller than the preset threshold value, the UE can receive the network reconfiguration message sent by the network equipment by sending the request message to the network equipment, so that the UE can be switched to the target cell according to the network reconfiguration message. Therefore, normal data transmission can be carried out between the UE and the target cell, and the data service is ensured not to be interrupted when the UE is switched to the target cell to carry out the data service. Further, under the condition that the network reconfiguration message includes the target identifier, since the UE can receive downlink data from the source cell, the problem that the UE receives downlink data is prevented from occurring during the cell switching process of the UE, and the user experience is also improved.

Optionally, after S101 and before S102, the cell access method provided in this embodiment may further include S108 and S109 described below.

S108, the cell access device receives the resource release indication message sent by the network equipment.

The resource release indication message is used for indicating to release the transmission resource of the source cell.

Illustratively, the resource release indication message is a daps-SourceRelease indication message.

S109, the cell access device saves the resource configuration information of the source cell according to the resource release indication message.

According to the cell access method provided by the embodiment of the application, after the UE is switched from the source cell to the target cell, the network equipment sends the resource release indication message to the UE, so that the UE stores the resource configuration information of the source cell, and the UE is ensured to continue to receive downlink data from the source cell.

It should be noted that, in the cell access method provided in the embodiment of the present application, the execution subject may be a cell access apparatus (for example, the cell access apparatus is an electronic device or a functional module in the electronic device), or a control module in the cell access apparatus for executing the cell access method. The cell access device provided in the embodiment of the present application is described with an example of a cell access device executing a cell access method.

As shown in fig. 3, an embodiment of the present application provides a cell access apparatus 200, which may include an obtaining module 201 and a processing module 202. The obtaining module 201 may be configured to obtain a first parameter of a target cell when a user equipment UE is handed over from a source cell to the target cell. The processing module 202 may be configured to initiate link recovery on the source cell when it is determined that the target cell is an unsuitable cell according to the first parameter acquired by the acquiring module 201.

Optionally, the processing module 202 may be further configured to delete the resource configuration information of the target cell after successfully restoring the radio link with the source cell.

Optionally, the first parameter includes a first sub-parameter and a second sub-parameter, the first sub-parameter is used to indicate a data transmission rate when data transmission is performed between the UE and the target cell, and the second sub-parameter is used to indicate a signal quality of the target cell; the cell access apparatus may also include a determining module 203. A determining module 203, configured to determine that the target cell is an unsuitable cell if the first sub-parameter is less than or equal to a first threshold and the second sub-parameter is less than or equal to a second threshold.

Optionally, the cell access apparatus may further include a transceiver module 204 and a storage module 205. The transceiver module 204 may be configured to receive a resource release indication message sent by the network device, where the resource release indication message is used to indicate to release the transmission resource of the source cell. The storing module 205 may be configured to store the resource configuration information of the source cell according to the resource release indication message received by the transceiver module 204.

Optionally, the cell access apparatus may further include a transceiver module 204. The transceiver module 204 may be configured to send a request message to the network device when it is determined that the signal quality parameter of the source cell is smaller than a preset threshold, where the request message is used to request cell handover; and receiving a network reconfiguration message sent by the network equipment, wherein the network reconfiguration message is used for indicating the UE to be switched to the target cell. The processing module 202 may be further configured to switch from the source cell to the target cell according to the network reconfiguration message received by the transceiver module 204. The transceiver module 204 may be further configured to receive downlink data from the source cell when the network reconfiguration message includes the target identifier; the target identifier is used for indicating that the UE is in a DAPS handover procedure of a dual activation protocol stack.

Optionally, the processing module 202 may be further configured to delete the resource configuration information of the source cell if the first sub-parameter is greater than the first threshold.

The embodiment of the present application provides a cell access apparatus, where after a first parameter of a target cell is obtained when a UE is switched from a source cell to the target cell, since link recovery can be initiated on the source cell when the target cell is determined to be an unsuitable cell according to the first parameter, the UE can normally receive and transmit data in the source cell after a wireless link between the UE and the source cell is successfully recovered.

The cell access device in the embodiment of the present application may be a device, and may also be a component, an integrated circuit, or a chip in a terminal. The device can be mobile electronic equipment or non-mobile electronic equipment. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine or a self-service machine, and the like, and the embodiments of the present application are not particularly limited.

The cell access device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.

The cell access device provided in the embodiment of the present application can implement each process implemented by the method embodiments in fig. 1 and fig. 2, and is not described herein again to avoid repetition.

Optionally, as shown in fig. 4, an electronic device 300 is further provided in this embodiment of the present application, and includes a processor 301, a memory 302, and a program or an instruction stored in the memory 302 and capable of being executed on the processor 301, where the program or the instruction is executed by the processor 301 to implement each process of the cell access method embodiment, and can achieve the same technical effect, and in order to avoid repetition, it is not described here again.

It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and the non-mobile electronic devices described above.

Fig. 5 is a schematic diagram of a hardware structure of an electronic device implementing an embodiment of the present application.

The electronic device 400 includes, but is not limited to: radio unit 401, network module 402, audio output unit 403, input unit 404, sensor 405, display unit 406, user input unit 407, interface unit 408, memory 409, and processor 410.

Those skilled in the art will appreciate that the electronic device 400 may further include a power source (e.g., a battery) for supplying power to various components, and the power source may be logically connected to the processor 410 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The electronic device structure shown in fig. 5 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description is omitted here.

The processor 410 may be configured to obtain a first parameter of a target cell when a user equipment UE is handed over from a source cell to the target cell; and initiating link recovery on the source cell if the target cell is determined to be a non-suitable cell according to the first parameter.

Optionally, the processor 410 may be further configured to delete the resource configuration information of the target cell after successfully restoring the radio link with the source cell.

Optionally, the first parameter includes a first sub-parameter and a second sub-parameter, the first sub-parameter is used to indicate a data transmission rate when data transmission is performed between the UE and the target cell, and the second sub-parameter is used to indicate a signal quality of the target cell. The processor 410 is further configured to determine that the target cell is a non-suitable cell if the first sub-parameter is less than or equal to a first threshold and the second sub-parameter is less than or equal to a second threshold.

Optionally, the radio frequency unit 401 may be configured to receive a resource release indication message sent by the network device, where the resource release indication message is used to indicate to release the transmission resource of the source cell. A memory 409, configured to store the resource configuration information of the source cell according to the resource release indication message.

Optionally, the radio frequency unit 401 may be configured to send a request message to the network device when it is determined that the signal quality parameter of the source cell is smaller than a preset threshold, where the request message is used to request cell handover; and receiving a network reconfiguration message sent by the network equipment, wherein the network reconfiguration message is used for indicating the UE to be switched to the target cell. The processor 410 is further configured to handover from the source cell to the target cell according to the network reconfiguration message. The radio frequency unit 401 may further be configured to receive downlink data from the source cell when the network reconfiguration message includes the target identifier; the target identifier is used for indicating that the UE is in a DAPS handover procedure of a dual activation protocol stack.

Optionally, the processor 410 may be further configured to delete the resource configuration information of the source cell if the first sub-parameter is greater than the first threshold.

The embodiment of the present application provides a UE, where after acquiring a first parameter of a target cell when the UE is handed over from a source cell to the target cell, since link recovery can be initiated on the source cell when the target cell is determined to be a non-suitable cell according to the first parameter, the UE can normally receive and transmit data in the source cell after a wireless link with the source cell is successfully recovered.

It should be understood that, in the embodiment of the present application, the input unit 404 may include a Graphics Processing Unit (GPU) 4041 and a microphone 4042, and the graphics processor 4041 processes image data of a still picture or a video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 406 may include a display panel 4061, and the display panel 4061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 407 includes a touch panel 4071 and other input devices 4072. A touch panel 4071, also referred to as a touch screen. The touch panel 4071 may include two parts, a touch detection device and a touch controller. Other input devices 4072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein. The memory 409 may be used to store software programs as well as various data including, but not limited to, application programs and an operating system. The processor 410 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 410.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the cell access method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

The processor is the processor in the electronic device in the above embodiment. Readable storage media, including computer-readable storage media such as a computer-read-only memory (ROM), a Random Access Memory (RAM), a magnetic or optical disk, and so forth.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the cell access method embodiment, and can achieve the same technical effect, and the details are not repeated here to avoid repetition.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method in the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A method for cell access, the method comprising:

under the condition that User Equipment (UE) is switched from a source cell to a target cell, acquiring a first parameter of the target cell;

and initiating link recovery on the source cell under the condition that the target cell is determined to be the improper cell according to the first parameter.

2. The method of claim 1, wherein after initiating link recovery on the source cell if the target cell is determined to be a non-suitable cell according to the first parameter, the method further comprises:

deleting the resource configuration information of the target cell after successfully restoring the radio link with the source cell.

3. The method according to claim 1 or 2, wherein the first parameter comprises a first sub-parameter and a second sub-parameter, the first sub-parameter is used for indicating a data transmission rate when data is transmitted between the UE and the target cell, and the second sub-parameter is used for indicating the signal quality of the target cell;

the method further comprises, before initiating link recovery on the source cell, in case the target cell is determined to be a non-suitable cell according to the first parameter:

and if the first sub-parameter is less than or equal to a first threshold value and the second sub-parameter is less than or equal to a second threshold value, determining that the target cell is a non-suitable cell.

4. The method of claim 1, wherein prior to initiating link recovery on the source cell, the method further comprises:

receiving a resource release indication message sent by the network equipment, wherein the resource release indication message is used for indicating to release the transmission resource of the source cell;

and saving the resource configuration information of the source cell according to the resource release indication message.

5. The method of claim 1, wherein before the obtaining the first parameter in case of handover of the UE from the source cell to the target cell, the method further comprises:

under the condition that the signal quality parameter of the source cell is determined to be smaller than a preset threshold value, sending a request message to network equipment, wherein the request message is used for requesting cell switching;

receiving a network reconfiguration message sent by the network equipment, wherein the network reconfiguration message is used for indicating the UE to be switched to the target cell;

switching from the source cell to the target cell according to the network reconfiguration message;

receiving downlink data from the source cell if the network reconfiguration message includes a target identifier;

wherein the target identifier is used for indicating that the UE is in a DAPS handover procedure of a dual activation protocol stack.

6. The cell access device is characterized by comprising an acquisition module and a processing module;

the acquiring module is used for acquiring a first parameter of a target cell under the condition that User Equipment (UE) is switched from a source cell to the target cell;

the processing module is configured to initiate link recovery on the source cell when the target cell is determined to be the unsuitable cell according to the first parameter.

7. The apparatus of claim 6,

the processing module is further configured to delete the resource configuration information of the target cell after the wireless link with the source cell is successfully restored.

8. The apparatus according to claim 6 or 7, wherein the first parameter comprises a first sub-parameter and a second sub-parameter, the first sub-parameter is used for indicating a data transmission rate when data is transmitted between the UE and the target cell, and the second sub-parameter is used for indicating a signal quality of the target cell; the cell access device also comprises a determining module;

the determining module is configured to determine that the target cell is a non-suitable cell if the first sub-parameter is less than or equal to a first threshold and the second sub-parameter is less than or equal to a second threshold.

9. The apparatus of claim 6, wherein the cell access apparatus further comprises a transceiver module and a storage module;

the transceiver module is configured to receive a resource release indication message sent by the network device, where the resource release indication message is used to indicate to release the transmission resource of the source cell;

the storage module is configured to store the resource configuration information of the source cell according to the resource release indication message received by the transceiver module.

10. The apparatus of claim 6, wherein the cell access apparatus further comprises a transceiver module;

the transceiver module is configured to send a request message to a network device when it is determined that the signal quality parameter of the source cell is smaller than a preset threshold, where the request message is used to request cell switching; receiving a network reconfiguration message sent by the network equipment, wherein the network reconfiguration message is used for indicating the UE to be switched to the target cell;

the processing module is further configured to switch from the source cell to the target cell according to the network reconfiguration message received by the transceiver module;

the transceiver module is further configured to receive downlink data from the source cell when the network reconfiguration message includes a target identifier;