CN114268402B - Cell sorting method and device and user equipment - Google Patents

Abstract

The embodiment of the application provides a cell sorting method, a cell sorting device and user equipment, wherein the method comprises the following steps: the user equipment carries out cell search to obtain a search cell list. And judging whether a stuck cell exists in the search cell list, wherein the stuck cell is a cell which causes network sticking of the user equipment after the user equipment resides. If the card pause cell exists in the search cell list, arranging the card pause cell at the tail of the search cell list according to the time sequence of the card pause cell for causing the user equipment to generate network card pause. If there is no stuck cell in the search cell list, the ordering of the cells in the search cell list is not changed. Therefore, the position of the cell in the search cell list is determined by the signal degree and the congestion degree of the cell, and the cell arranged at the head of the search cell list is a cell which has strong signal intensity and can not cause network jamming of the user equipment, so that the user equipment is prevented from continuously residing in the previously residing congested cell, and the problem of network jamming of the user equipment is solved.

Description

Cell sorting method and device and user equipment

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a cell ranking method, a cell ranking device and user equipment.

Background

When a User Equipment (UE) accesses a cellular mobile communication system, the process generally includes Cell search, Cell system information acquisition, Cell selection, and camping. Multiple cells may be hung under the same base station, and the center frequency points of different cells are different. When cell search is performed, the UE may perform cell search according to the central frequency point to obtain a search cell list, the search cell list is generally arranged according to the signal strength of the cell, and the UE may finally generally select the cell with the best signal strength to reside.

After the UE camps on a cell, if a serious network congestion occurs, the self-healing mechanism of the UE may re-register or restart a modem (modem), and the re-registration or the restarting of the modem may trigger a cell search action of the modem. For another example, when the UE is in network hangup, the user may manually turn on and off the flight security mode to trigger cell search of the modem after waiting for a long time until the user finds that the service still cannot be recovered.

However, when the UE performs cell search again to solve the stuck problem, the UE still selects the cell with the strongest signal to camp on, without considering the stuck condition of the historical camping cells. Then, if the cell with the strongest signal strength is the cell where the UE originally resides, the UE is likely to continue to reside in the originally residing cell, and the problem of UE stuck due to cell congestion cannot be solved.

Disclosure of Invention

The embodiment of the application provides a cell sorting method, a cell sorting device and user equipment, and aims to solve the problem of UE jamming caused by cell congestion and other abnormalities.

In a first aspect, an embodiment of the present application provides a cell ranking method, applied to a user equipment, including: carrying out cell search to obtain a search cell list; judging whether a stuck cell exists in the search cell list, wherein the stuck cell is a cell which enables the user equipment to be stuck by a network after the user equipment resides; if the search cell list has the stuck cells, arranging the stuck cells at the tail of the search cell list according to the time sequence of the stuck cells causing the user equipment to be stuck by the network; if no stuck cell exists in the search cell list, the ordering of the cells in the search cell list is not changed.

According to the method, for the stuck cells in the search cell list, the stuck cells are arranged at the tail of the search cell list according to the time sequence of the stuck cells causing the network sticking of the user equipment, thus, the positions of the cells in the search cell list are determined by the signal intensity and the congestion degree of the cells together, the cells arranged at the tail of the search cell list are stuck cells, and the cells arranged at the head of the search cell list are cells with strong signal intensity and not causing the network sticking of the user equipment, thereby avoiding the user equipment from continuously residing in the cells which have congestion and solving the problem of the network sticking of the user equipment.

In one implementation, the method further comprises: if there is a stuck cell in the search cell list, the priority of the stuck cell is lowered. In this way, the user equipment can select a cell with a higher priority to camp on, but not a stuck cell with a lower priority.

In one implementation, the method further comprises: if there is a stuck cell in the search cell list, the stuck cell is set as a forbidden cell to prohibit the user equipment from residing in the stuck cell.

In one implementation, the step of determining whether a stuck cell exists in the search cell table includes: and judging whether a stuck cell exists in the search cell list or not according to the stuck cell list, wherein the stuck cell list is obtained by screening a pre-stuck cell list, and the pre-stuck cell list comprises stuck cells which enable the user equipment to be stuck by a network in the process of the user equipment staying in the cells historically.

Therefore, the stuck cell list comprises stuck cells causing the user equipment to be stuck by the network in the process of the user equipment staying in the cells historically, and the stuck cells in the search cell list can be found out by judging whether the stuck cells exist in the search cell list or not by using the stuck cell list.

In one implementation, the step of screening the pre-stuck cell list includes: acquiring a pre-stuck cell list; judging whether a cell with an aging timer value larger than or equal to an aging timer threshold exists in a pre-stuck cell table, wherein the aging timer is a timer set for a stuck cell when the stuck cell is added into the pre-stuck cell table; deleting the cells of which the aging timer value is greater than or equal to the aging timer threshold from the pre-stuck cell list; the cells in the pre-stuck cell list are added to the stuck cell list.

The larger the value of the aging timer is, the longer the network seizure time of the UE is caused by the stuck cell from the current time, and the smaller the value of the aging timer is, the closer the network seizure time of the UE is caused by the stuck cell from the current time. Deleting the cell with the aging timer value larger than the aging timer threshold in the stuck cell list, so that the user equipment can select the cell for residence, and simultaneously, the storage pressure of the user equipment on the pre-stuck cell list and the stuck cell list can be relieved.

In one implementation, the step of adding cells in the pre-stuck cell list to the stuck cell list includes: judging whether the pre-stuck cell list is an empty list or not; if the pre-stuck cell table is not empty, the cells in the pre-stuck cell table are added to the stuck cell table.

In one implementation, the step of determining a pre-stuck cell table includes: judging whether an application program runs on a foreground of user equipment or not; and if the application program runs on the foreground of the user equipment, judging whether the user equipment is in a network blocking state or not. When the user uses the user equipment, whether the user equipment is in a network blocking state is judged, and the user experience is prevented from being influenced by the network blocking of the user equipment.

In one implementation, the step of determining whether the user equipment is in a network stuck state includes: judging whether the time delay of a Transmission Control Protocol (TCP) data packet of the user equipment is greater than or equal to a threshold or whether the user equipment does not receive data; if the TCP data packet of the user equipment is smaller than the threshold or the user equipment receives the data, determining that the user equipment is not in a network blocking state; if the TCP data packet time delay of the user equipment is more than or equal to the threshold or the user equipment does not receive the data, judging whether the downlink error rate of the user equipment is more than or equal to the downlink error rate threshold or whether the uplink error rate of the user equipment is more than or equal to the uplink error rate threshold; and if the downlink error rate of the user equipment is greater than or equal to the downlink error rate threshold or the uplink error rate is greater than or equal to the uplink error rate threshold, determining that the user equipment is in a network stuck state.

In one implementation, the step of determining whether the ue is in a network stuck state further includes: if the downlink error rate of the user equipment is less than the downlink error rate threshold or the uplink error rate is less than the uplink error rate threshold, judging whether the downlink traffic of the user equipment is less than or equal to the downlink traffic threshold or the uplink traffic is less than or equal to the uplink traffic threshold; if the downlink traffic of the user equipment is less than or equal to the downlink traffic threshold or the uplink traffic is less than or equal to the uplink traffic threshold, determining that the user equipment is in a network stuck state; and if the downlink traffic of the user equipment is greater than the downlink traffic threshold or the uplink traffic is greater than the uplink traffic threshold, determining that the user equipment is not in a network stuck state.

In one implementation, if the user equipment is in a network stuck state, the method further includes: judging whether a blocking timer of the user equipment is started or not, wherein the blocking timer is used for recording the time length of the user equipment in a network blocking state; if the user equipment does not have a stuck timer started, the stuck timer is set for the user equipment. The method and the device can record the duration of the user equipment in the network stuck state continuously, and improve the accuracy of the pre-stuck cell list.

In one implementation, the method further comprises: if the card pause timer of the user equipment is started, judging whether the current resident cell of the user equipment and the cell when judging whether the foreground of the user equipment runs the application program are the same cell or not so as to determine whether the resident cell of the user equipment is changed or not; if the resident cell of the user equipment is changed, stopping the blocking timer and re-executing the step of judging whether the foreground of the user equipment runs the application program. And judging that the cell where the user equipment resides is changed to determine whether the network blockage state of the user equipment is changed or not, so that the accuracy of the pre-blockage cell list is improved.

In one implementation, the method further comprises: if the resident cell of the user equipment is not changed, judging whether the numerical value of the stuck timer is more than or equal to the threshold of the stuck timer; and if the numerical value of the pause timer is smaller than the threshold of the pause timer, re-executing the step of judging whether the foreground of the user equipment runs the application program. And judging whether the value of the stuck timer is greater than or equal to a threshold or not so as to determine whether the user equipment is stuck continuously or not and improve the accuracy of the pre-stuck cell list.

In one implementation, the method further comprises: if the value of the blocking timer is larger than or equal to the threshold of the blocking timer, stopping the blocking timer, and judging whether the cell where the user equipment currently resides is in a pre-blocking cell list or not according to the cell information of the cell where the user equipment currently resides; if the current resident cell of the user equipment is not in the pre-stuck cell list, adding the current resident cell of the user equipment into the pre-stuck cell list, and setting an aging timer for the current resident cell of the user equipment; if the current resident cell of the user equipment is in the pre-stuck cell list, resetting the aging timer of the current resident cell of the user equipment so as to restart the aging timer, and re-executing the step of judging whether the foreground of the user equipment runs the application program. The numerical value of the aging timer is used for representing the time sequence of the network jamming of the user equipment by the jamming cell, the larger the numerical value of the aging timer is, the earlier the network jamming of the user equipment by the jamming cell is, the smaller the numerical value of the aging timer is, and the later the network jamming of the user equipment by the jamming cell is, the numerical value of the aging timer determines the position of the cell in the jamming cell list.

In one implementation manner, before the steps of adding the current cell where the user equipment resides into the pre-stuck cell list and setting the aging timer for the current cell where the user equipment resides, the method further includes: judging whether the number of the cells in the pre-stuck cell list reaches the maximum value of the number of the cells which can be accommodated in the pre-stuck cell list or not; if the maximum number of cells that the pre-stuck cell list can accommodate has been reached, the cell with the largest aging timer value in the pre-stuck cell list is removed from the pre-stuck cell list. And judging whether the number of the cells in the pre-stuck cell list reaches the maximum value of the number of the cells which can be accommodated in the pre-stuck cell list or not so as to ensure that the stuck cells are smoothly added into the pre-stuck cell list.

In one implementation, if the user equipment is not in the network stuck state, the method further includes: judging whether the pre-stuck cell list is an empty list or not; if the pre-stuck cell list is an empty list, re-executing the step of judging whether the foreground of the user equipment runs the application program; if the pre-stuck cell list is not an empty list, judging whether the current resident cell of the user equipment is in the pre-stuck cell list or not according to the cell information of the current resident cell of the user equipment; and if the current resident cell of the user equipment is not in the pre-stuck cell list, re-executing the step of judging whether the foreground of the user equipment runs the application program. When the user equipment is not in the network stuck state, whether the pre-stuck cell table is an empty table or not is judged, and whether a cell causing the user equipment to be stuck exists or not can be determined.

In one implementation, the method further comprises: if the current resident cell of the user equipment is in the pre-stuck cell table, judging whether a stuck recovery timer of the user equipment is started or not, wherein the stuck recovery timer is a timer used for indicating the duration of the user equipment in a non-stuck state; and if the user equipment does not have the started stuck recovery timer, setting the stuck recovery timer for the user equipment. And setting a stuck recovery timer for the user equipment to record the duration of the user equipment in the non-stuck state continuously, so that the accuracy of the pre-stuck cell list is improved.

In one implementation, the method further comprises: if the pause recovery timer of the user equipment is started, judging whether the current resident cell of the user equipment and the cell when judging whether the foreground of the user equipment runs the application program are the same cell or not so as to determine whether the current resident cell of the user equipment is changed or not; if the current resident cell of the user equipment is changed, stopping the pause recovery timer and re-executing the step of judging whether the foreground of the user equipment runs the application program. And judging that the cell where the user equipment resides is changed to determine whether the non-stuck state of the user equipment is changed or not, so that the accuracy of the pre-stuck cell list is improved.

In one implementation, the method further comprises: if the current resident cell of the user equipment is not changed, judging whether the numerical value of the stuck recovery timer is more than or equal to the threshold of the stuck recovery timer; if the numerical value of the pause recovery timer is smaller than the threshold of the pause recovery timer, the step of judging whether the foreground of the user equipment runs the application program is executed again; if the value of the pause recovery timer is larger than or equal to the threshold of the pause recovery timer, stopping the pause recovery timer, deleting the current resident cell of the user equipment from the pre-pause cell table, and re-executing the step of judging whether the foreground of the user equipment runs the application program. And judging whether the value of the stuck recovery timer is greater than or equal to a threshold or not so as to determine whether the user equipment is continuously in a non-stuck state or not and improve the accuracy of the pre-stuck cell list.

In one implementation, the method further comprises: if the user equipment foreground does not run the application program, stopping the pause timer and the pause recovery timer, and re-executing the step of judging whether the application program is run by the user equipment foreground.

In a second aspect, an embodiment of the present application further provides a cell ranking device. The device includes: the cell searching unit is used for searching the cell to obtain a searching cell list; the device comprises a judging unit, a searching unit and a judging unit, wherein the judging unit is used for judging whether a stuck cell exists in a searching cell list, and the stuck cell is a cell which causes the user equipment to be stuck by a network after the user equipment resides; a sorting unit, configured to, if there is a stuck cell in the search cell table, arrange the stuck cell at a tail of the search cell table according to a time sequence in which the stuck cell causes network sticking of the UE; and the sorting unit is also used for not changing the sorting of the cells in the search cell list if the stuck cell does not exist in the search cell list.

According to the cell sorting device provided by the embodiment of the application, for the stuck cells in the search cell list, the stuck cells are arranged at the tail of the search cell list according to the time sequence of the stuck cells enabling the user equipment to be stuck in the network, so that the positions of the cells in the search cell list are determined by the signal intensity and the congestion degree of the cells, the cells arranged at the tail of the search cell list are the stuck cells, and the cells arranged at the head of the search cell list are the cells which are strong in signal intensity and cannot enable the user equipment to be stuck in the network, so that the user equipment is prevented from continuously residing in the congested cells, and the problem of network sticking of the user equipment is solved.

In a third aspect, an embodiment of the present application provides a user equipment, including: a processor and a memory; the memory stores program instructions that, when executed by the processor, cause the user equipment to perform the above aspects and methods in its various implementations.

In a fourth aspect, embodiments of the present application further provide a chip system, where the chip system includes a processor and a memory, and the memory stores program instructions, and when the program instructions are executed by the processor, the chip system is caused to perform the methods in the foregoing aspects and their respective implementations. For example, information involved in the above-described methods is generated or processed.

In a fifth aspect, embodiments of the present application further provide a computer-readable storage medium, in which program instructions are stored, and when the program instructions are executed on a computer, the computer is caused to execute the methods in the foregoing aspects and their respective implementations.

In a sixth aspect, the present application also provides a computer program product, which when run on a computer, causes the computer to execute the methods in the above aspects and their respective implementations.

Drawings

FIG. 1 is a diagram illustrating a hardware structure of a UE101 according to an embodiment of the present application;

FIG. 2 is a block diagram of the software architecture of the UE101 of an embodiment of the present application;

fig. 3 is a diagram illustrating a UE currently selecting a cell for camping;

fig. 4 is a flowchart illustrating a cell ranking method 100 according to an embodiment of the present disclosure;

fig. 5 is an exemplary search cell table provided in an embodiment of the present application;

fig. 6 is a flowchart illustrating a cell ranking method 200 according to an embodiment of the present disclosure;

fig. 7 is a schematic diagram illustrating a cell ranking of a search cell table according to a stuck cell table according to an embodiment of the present application;

fig. 8 is a schematic flowchart of forming a pre-stuck cell table according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a cell ranking apparatus according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of another cell ranking apparatus according to an embodiment of the present application.

Detailed Description

The terms "first", "second" and "third", etc. in the description and claims of this application and the description of the drawings are used for distinguishing between different objects and not for limiting a particular order.

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

The terminology used in the description of the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application, which will be described in detail below with reference to the accompanying drawings.

A cellular mobile communication system (cellular mobile communication system) is a mobile communication hardware architecture in which a signal coverage area is divided into individual cells (cells). A plurality of cells may be hung under the same base station, each cell may be allocated with a plurality of frequencies (center frequency points), and the center frequency points of different cells are different. A UE camped on a cell can reliably communicate with a base station through a radio channel.

When the UE accesses the cellular mobile communication system, the procedures generally include cell search, cell system information acquisition, cell selection, and camping. When cell search is performed, the UE may perform cell search according to the central frequency point to obtain a search cell list, the search cell list is generally arranged according to the signal strength of the cell, and the UE may finally generally select the cell with the best signal strength to reside.

Specifically, after entering cell search, the UE receives a signal (PSS) at a center frequency point, and determines whether a cell may exist around the center frequency point according to the received signal strength. In this process, if the UE stores the frequency points (historical frequency points) of the cell where the UE resided last time, the UE may first attempt to select a cell where the UE resided according to the historical frequency points. If the UE does not have the stored frequency point, the UE can perform full-band scanning in the frequency band range of the cellular mobile communication system, and tries to perform cell residence on the frequency point with the stronger signal.

Cell camping also typically includes the following criteria: whether a PLMN (public land mobile network) of a cell is acceptable to a UE (PLMN selection criterion), whether a service type of a cell is acceptable to an attachment of a UE (service type criterion), and a signal strength, under a common constraint of the above criteria, a search cell table may be obtained.

Generally, the cellular mobile communication system may be a communication system such as a fifth generation mobile communication network (5 th generation mobile networks, 5G), a fourth generation mobile communication network (4 th generation mobile networks, 4G), or a Long Term Evolution (LTE), and the UE may freely select which network to access.

The user equipment UE in the embodiment of the present application may include, for example, a mobile phone, a tablet computer, a personal computer, a workstation device, a large-screen device (e.g., a smart screen, a smart television, etc.), a handheld game console, a home game console, a virtual reality device, an augmented reality device, a mixed reality device, etc., a vehicle-mounted smart terminal, an auto-driven vehicle, a Customer Premises Equipment (CPE), etc.

FIG. 1 shows a schematic diagram of a UE 101.

The UE101 may include a processor 110, an external memory interface 120, an internal memory 121, a Universal Serial Bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a button 190, a motor 191, an indicator 192, a camera 193, a display screen 194, and a Subscriber Identification Module (SIM) card interface 195, etc. The sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, and the like.

It is understood that the illustrated structure of the embodiment of the present invention does not constitute a specific limitation to the UE 101. In other embodiments of the present application, the UE101 may include more or fewer components than illustrated, or combine certain components, or split certain components, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 110 may include one or more processing units, such as: the processor 110 may include an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), etc. The different processing units may be separate devices or may be integrated into one or more processors.

The controller can generate an operation control signal according to the instruction operation code and the timing signal to complete the control of instruction fetching and instruction execution.

A memory may also be provided in processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may hold instructions or data that have just been used or recycled by the processor 110. If the processor 110 needs to reuse the instruction or data, it can be called directly from the memory. Avoiding repeated accesses reduces the latency of the processor 110, thereby increasing the efficiency of the system.

In some embodiments, processor 110 may include one or more interfaces. The interface may include an integrated circuit (I2C) interface, an integrated circuit built-in audio (I2S) interface, a Pulse Code Modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a Mobile Industry Processor Interface (MIPI), a general-purpose input/output (GPIO) interface, a Subscriber Identity Module (SIM) interface, and/or a Universal Serial Bus (USB) interface, etc.

The I2C interface is a bi-directional synchronous serial bus that includes a serial data line (SDA) and a Serial Clock Line (SCL). In some embodiments, processor 110 may include multiple sets of I2C buses. The processor 110 may be coupled to the touch sensor 180K, the charger, the flash, the camera 193, etc. through different I2C bus interfaces, respectively. For example: the processor 110 may be coupled to the touch sensor 180K via an I2C interface, such that the processor 110 and the touch sensor 180K communicate via an I2C bus interface to implement touch functionality of the UE 101.

The I2S interface may be used for audio communication. In some embodiments, processor 110 may include multiple sets of I2S buses. The processor 110 may be coupled to the audio module 170 via an I2S bus to enable communication between the processor 110 and the audio module 170. In some embodiments, the audio module 170 may communicate audio signals to the wireless communication module 160 via the I2S interface, enabling answering of calls via a bluetooth headset.

The PCM interface may also be used for audio communication, sampling, quantizing and encoding analog signals. In some embodiments, the audio module 170 and the wireless communication module 160 may be coupled by a PCM bus interface. In some embodiments, the audio module 170 may also transmit audio signals to the wireless communication module 160 through the PCM interface, so as to implement a function of answering a call through a bluetooth headset. Both the I2S interface and the PCM interface may be used for audio communication.

The UART interface is a universal serial data bus used for asynchronous communications. The bus may be a bidirectional communication bus. It converts the data to be transmitted between serial communication and parallel communication. In some embodiments, a UART interface is generally used to connect the processor 110 with the wireless communication module 160. For example: the processor 110 communicates with a bluetooth module in the wireless communication module 160 through a UART interface to implement a bluetooth function. In some embodiments, the audio module 170 may transmit the audio signal to the wireless communication module 160 through a UART interface, so as to implement the function of playing music through a bluetooth headset.

MIPI interfaces may be used to connect processor 110 with peripheral devices such as display screen 194, camera 193, and the like. The MIPI interface includes a Camera Serial Interface (CSI), a Display Serial Interface (DSI), and the like. In some embodiments, the processor 110 and the camera 193 communicate over a CSI interface to implement the shooting functionality of the UE 101. The processor 110 and the display screen 194 communicate via the DSI interface to implement the display functionality of the UE 101.

The GPIO interface may be configured by software. The GPIO interface may be configured as a control signal and may also be configured as a data signal. In some embodiments, a GPIO interface may be used to connect the processor 110 with the camera 193, the display 194, the wireless communication module 160, the audio module 170, the sensor module 180, and the like. The GPIO interface may also be configured as an I2C interface, an I2S interface, a UART interface, a MIPI interface, and the like.

The USB interface 130 is an interface conforming to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, or the like. The USB interface 130 can be used to connect a charger to charge the UE101, and can also be used to transmit data between the UE101 and peripheral devices. And the earphone can also be used for connecting an earphone and playing audio through the earphone. The interface may also be used to connect other electronic devices, such as AR devices and the like.

It should be understood that the connection relationship between the modules illustrated in the embodiment of the present invention is only an exemplary illustration, and does not form a limitation on the structure of the UE 101. In other embodiments of the present application, the UE101 may also adopt different interface connection manners or a combination of multiple interface connection manners in the above embodiments.

The charging management module 140 is configured to receive charging input from a charger. The charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 may receive charging input from a wired charger via the USB interface 130. In some wireless charging embodiments, the charging management module 140 can receive a wireless charging input through a wireless charging coil of the UE 101. The charging management module 140 may also supply power to the electronic device through the power management module 141 while charging the battery 142.

The power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and/or the charge management module 140, and supplies power to the processor 110, the internal memory 121, the display 194, the camera 193, the wireless communication module 160, and the like. The power management module 141 may also be used to monitor parameters such as battery capacity, battery cycle count, battery state of health (leakage, impedance), etc. In some other embodiments, the power management module 141 may also be disposed in the processor 110. In other embodiments, the power management module 141 and the charging management module 140 may be disposed in the same device.

The wireless communication function of the UE101 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the UE101 may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a solution for wireless communication including 2G/3G/4G/5G, etc. applied on the UE 101. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a Low Noise Amplifier (LNA), and the like. The mobile communication module 150 may receive the electromagnetic wave from the antenna 1, filter, amplify, etc. the received electromagnetic wave, and transmit the electromagnetic wave to the modem processor for demodulation. The mobile communication module 150 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be provided in the same device as at least some of the modules of the processor 110.

The modem processor may include a modulator and a demodulator. The modulator is used for modulating a low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used for demodulating the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then passes the demodulated low frequency baseband signal to a baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and then passed to the application processor. The application processor outputs a sound signal through an audio device (not limited to the speaker 170A, the receiver 170B, etc.) or displays an image or video through the display screen 194. In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be provided in the same device as the mobile communication module 150 or other functional modules, independent of the processor 110.

The wireless communication module 160 may provide solutions for wireless communication applied on the UE101, including Wireless Local Area Networks (WLANs) (e.g., wireless fidelity (Wi-Fi) networks), Bluetooth (BT), Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), Infrared (IR), and the like. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering processing on electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, perform frequency modulation and amplification on the signal, and convert the signal into electromagnetic waves through the antenna 2 to radiate the electromagnetic waves.

In some embodiments, the antenna 1 of the UE101 is coupled to the mobile communication module 150 and the antenna 2 is coupled to the wireless communication module 160 so that the UE101 can communicate with the network and other devices via wireless communication techniques. The wireless communication technology may include global system for mobile communications (GSM), General Packet Radio Service (GPRS), code division multiple access (code division multiple access, CDMA), Wideband Code Division Multiple Access (WCDMA), time-division code division multiple access (time-division code division multiple access, TD-SCDMA), Long Term Evolution (LTE), LTE, BT, GNSS, WLAN, NFC, FM, and/or IR technologies, etc. The GNSS may include a Global Positioning System (GPS), a global navigation satellite system (GLONASS), a beidou navigation satellite system (BDS), a quasi-zenith satellite system (QZSS), and/or a Satellite Based Augmentation System (SBAS).

The UE101 implements display functions via the GPU, display screen 194, and application processor, among other things. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and an application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.

The display screen 194 is used to display images, video, and the like. The display screen 194 includes a display panel. The display panel may adopt a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED), a flexible light-emitting diode (FLED), a miniature, a Micro-oeld, a quantum dot light-emitting diode (QLED), and the like. In some embodiments, the UE101 may include 1 or N display screens 194, with N being a positive integer greater than 1.

The UE101 may implement the capture function via the ISP, camera 193, video codec, GPU, display screen 194, application processor, and the like.

The ISP is used to process the data fed back by the camera 193. For example, when a photo is taken, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, the optical signal is converted into an electrical signal, and the camera photosensitive element transmits the electrical signal to the ISP for processing and converting into an image visible to naked eyes. The ISP can also carry out algorithm optimization on the noise, brightness and skin color of the image. The ISP can also optimize parameters such as exposure, color temperature and the like of a shooting scene. In some embodiments, the ISP may be provided in camera 193.

The camera 193 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image to the photosensitive element. The photosensitive element may be a Charge Coupled Device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The light sensing element converts the optical signal into an electrical signal, which is then passed to the ISP where it is converted into a digital image signal. And the ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into image signal in standard RGB, YUV and other formats. In some embodiments, the UE101 may include 1 or N cameras 193, N being a positive integer greater than 1.

The digital signal processor is used for processing digital signals, and can process digital image signals and other digital signals. For example, when the UE101 selects a frequency bin, the digital signal processor is used to perform Fourier transform or the like on the frequency bin energy.

Video codecs are used to compress or decompress digital video. The UE101 may support one or more video codecs. In this way, the UE101 may play or record video in a variety of encoding formats, such as: moving Picture Experts Group (MPEG) 1, MPEG2, MPEG3, MPEG4, and the like.

The NPU is a neural-network (NN) computing processor that processes input information quickly by using a biological neural network structure, for example, by using a transfer mode between neurons of a human brain, and can also learn by itself continuously. Applications such as intelligent cognition of the UE101 can be achieved through the NPU, for example: image recognition, face recognition, speech recognition, text understanding, and the like.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to extend the storage capability of the UE 101. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. For example, files such as music, video, etc. are saved in an external memory card.

The internal memory 121 may be used to store computer-executable program code, which includes instructions. The internal memory 121 may include a program storage area and a data storage area. The storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like. The stored data area may store data (e.g., audio data, phone book, etc.) created during use of the UE101, and the like. In addition, the internal memory 121 may include a high-speed random access memory, and may further include a nonvolatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash memory (UFS), and the like. The processor 110 executes various functional applications of the UE101 and data processing by executing instructions stored in the internal memory 121 and/or instructions stored in a memory disposed in the processor.

The UE101 can implement audio functions via the audio module 170, speaker 170A, headphones 170B, microphone 170C, headset interface 170D, and application processor, among other things. Such as music playing, recording, etc.

The audio module 170 is used to convert digital audio information into an analog audio signal output and also to convert an analog audio input into a digital audio signal. The audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be disposed in the processor 110, or some functional modules of the audio module 170 may be disposed in the processor 110.

The speaker 170A, also called a "horn", is used to convert the audio electrical signal into an acoustic signal. The UE101 may listen to music through the speaker 170A or to a hands-free call.

The receiver 170B, also called "earpiece", is used to convert the electrical audio signal into an acoustic signal. When the UE101 answers a call or voice information, it can answer the voice by bringing the receiver 170B close to the human ear.

The microphone 170C, also referred to as a "microphone," is used to convert sound signals into electrical signals. When making a call or transmitting voice information, the user can input a voice signal to the microphone 170C by speaking the user's mouth near the microphone 170C. The UE101 may be provided with at least one microphone 170C. In other embodiments, the UE101 may be provided with two microphones 170C to enable noise reduction functionality in addition to collecting sound signals. In other embodiments, the UE101 may further include three, four or more microphones 170C to collect sound signals, reduce noise, identify sound sources, perform directional recording, and so on.

The headphone interface 170D is used to connect a wired headphone. The headset interface 170D may be the USB interface 130, or may be a 3.5mm open mobile electronic device platform (OMTP) standard interface, a cellular telecommunications industry association (cellular telecommunications industry association of the USA, CTIA) standard interface.

The pressure sensor 180A is used for sensing a pressure signal, and converting the pressure signal into an electrical signal. In some embodiments, the pressure sensor 180A may be disposed on the display screen 194. The pressure sensor 180A can be of a wide variety, such as a resistive pressure sensor, an inductive pressure sensor, a capacitive pressure sensor, and the like. The capacitive pressure sensor may be a sensor comprising at least two parallel plates having an electrically conductive material. When a force acts on the pressure sensor 180A, the capacitance between the electrodes changes. The UE101 determines the strength of the pressure from the change in capacitance. When a touch operation is applied to the display screen 194, the UE101 detects the intensity of the touch operation according to the pressure sensor 180A. The UE101 can also calculate the location of the touch from the detection signal of the pressure sensor 180A. In some embodiments, the touch operations that are applied to the same touch position but different touch operation intensities may correspond to different operation instructions. For example: and when the touch operation with the touch operation intensity smaller than the first pressure threshold value acts on the short message application icon, executing an instruction for viewing the short message. And when the touch operation with the touch operation intensity larger than or equal to the first pressure threshold value acts on the short message application icon, executing an instruction of newly building the short message.

The gyro sensor 180B may be used to determine the motion attitude of the UE 101. In some embodiments, the angular velocity of the UE101 about three axes (i.e., x, y, and z axes) may be determined by the gyroscope sensor 180B. The gyro sensor 180B may be used for photographing anti-shake. Illustratively, when the shutter is pressed, the gyro sensor 180B detects the shake angle of the UE101, calculates the distance to be compensated for by the lens module according to the shake angle, and allows the lens to counteract the shake of the UE101 through a reverse motion, thereby achieving anti-shake. The gyroscope sensor 180B may also be used for navigation, somatosensory gaming scenes.

The air pressure sensor 180C is used to measure air pressure. In some embodiments, the UE101 calculates altitude, aiding in positioning and navigation from barometric pressure values measured by the barometric pressure sensor 180C.

The magnetic sensor 180D includes a hall sensor. The UE101 can detect the opening and closing of the flip holster with the magnetic sensor 180D. In some embodiments, when the UE101 is a clamshell, the UE101 may detect the opening and closing of the clamshell from the magnetic sensor 180D. And then according to the detected opening and closing state of the leather sheath or the opening and closing state of the flip, the characteristics of automatic unlocking of the flip and the like are set.

The acceleration sensor 180E can detect the magnitude of acceleration of the UE101 in various directions (typically three axes). The magnitude and direction of gravity may be detected when the UE101 is stationary. The method can also be used for recognizing the posture of the electronic equipment, and is applied to horizontal and vertical screen switching, pedometers and other applications.

A distance sensor 180F for measuring a distance. The UE101 may measure distance by infrared or laser. In some embodiments, the scene is photographed and the UE101 may range using the distance sensor 180F to achieve fast focus.

The proximity light sensor 180G may include, for example, a Light Emitting Diode (LED) and a light detector, such as a photodiode. The light emitting diode may be an infrared light emitting diode. The UE101 emits infrared light outward through the light emitting diode. The UE101 detects infrared reflected light from nearby objects using a photodiode. When sufficient reflected light is detected, it can be determined that there is an object in the vicinity of the UE 101. When insufficient reflected light is detected, the UE101 can determine that there are no objects near the UE 101. The UE101 can utilize the proximity light sensor 180G to detect that the user holds the UE101 close to the ear for talking, so as to automatically turn off the screen for power saving. The proximity light sensor 180G may also be used in a holster mode, a pocket mode automatically unlocks and locks the screen.

The ambient light sensor 180L is used to sense ambient light brightness. The UE101 may adaptively adjust the display screen 194 brightness based on the perceived ambient light level. The ambient light sensor 180L may also be used to automatically adjust the white balance when taking a picture. The ambient light sensor 180L may also cooperate with the proximity light sensor 180G to detect whether the UE101 is in a pocket to prevent inadvertent contact.

The fingerprint sensor 180H is used to collect a fingerprint. The UE101 can utilize the collected fingerprint characteristics to unlock the fingerprint, access the application lock, take a photograph of the fingerprint, answer an incoming call with the fingerprint, and so on.

The temperature sensor 180J is used to detect temperature. In some embodiments, the UE101 implements a temperature processing strategy using the temperature detected by the temperature sensor 180J. For example, when the temperature reported by the temperature sensor 180J exceeds a threshold, the UE101 performs a reduction in performance of a processor located near the temperature sensor 180J in order to reduce power consumption and implement thermal protection. In other embodiments, the UE101 heats the battery 142 when the temperature is below another threshold to avoid an abnormal shutdown of the UE101 due to low temperatures. In other embodiments, the UE101 performs a boost on the output voltage of the battery 142 when the temperature is below a further threshold to avoid an abnormal shutdown due to low temperatures.

The touch sensor 180K is also called a "touch device". The touch sensor 180K may be disposed on the display screen 194, and the touch sensor 180K and the display screen 194 form a touch screen, which is also called a "touch screen". The touch sensor 180K is used to detect a touch operation applied thereto or nearby. The touch sensor can communicate the detected touch operation to the application processor to determine the touch event type. Visual output associated with the touch operation may be provided through the display screen 194. In other embodiments, the touch sensor 180K may be disposed on a surface of the UE101 at a different location than the display screen 194.

The bone conduction sensor 180M may acquire a vibration signal. In some embodiments, the bone conduction sensor 180M may acquire a vibration signal of the human vocal part vibrating the bone mass. The bone conduction sensor 180M may also contact the human pulse to receive the blood pressure pulsation signal. In some embodiments, bone conduction sensor 180M may also be provided in a headset, integrated into a bone conduction headset. The audio module 170 may analyze a voice signal based on the vibration signal of the bone mass vibrated by the sound part acquired by the bone conduction sensor 180M, so as to implement a voice function. The application processor can analyze heart rate information based on the blood pressure beating signal acquired by the bone conduction sensor 180M, so as to realize the heart rate detection function.

The keys 190 include a power-on key, a volume key, and the like. The keys 190 may be mechanical keys. Or may be touch keys. The UE101 can receive key inputs, generate key signal inputs related to user settings and function control of the UE 101.

The motor 191 may generate a vibration cue. The motor 191 may be used for incoming call vibration cues, as well as for touch vibration feedback. For example, touch operations applied to different applications (e.g., photographing, audio playing, etc.) may correspond to different vibration feedback effects. The motor 191 may also respond to different vibration feedback effects for touch operations applied to different areas of the display screen 194. Different application scenes (such as time reminding, receiving information, alarm clock, game and the like) can also correspond to different vibration feedback effects. The touch vibration feedback effect may also support customization.

Indicator 192 may be an indicator light that may be used to indicate a state of charge, a change in charge, or a message, missed call, notification, etc.

The SIM card interface 195 is used to connect a SIM card. The SIM card can be brought into and out of contact with the UE101 by being inserted into the SIM card interface 195 or pulled out of the SIM card interface 195. The UE101 may support 1 or N SIM card interfaces, with N being a positive integer greater than 1. The SIM card interface 195 may support a Nano SIM card, a Micro SIM card, a SIM card, etc. The same SIM card interface 195 can be inserted with multiple cards at the same time. The types of the plurality of cards may be the same or different. The SIM card interface 195 may also be compatible with different types of SIM cards. The SIM card interface 195 may also be compatible with external memory cards. The UE101 interacts with the network through the SIM card to realize functions such as conversation, data communication and the like. In some embodiments, the UE101 employs eSIM, namely: an embedded SIM card. The eSIM card can be embedded in the UE101 and cannot be separated from the UE 101.

The software system of the electronic device 100 may employ a layered architecture, an event-driven architecture, a micro-core architecture, a micro-service architecture, or a cloud architecture. The embodiment of the present invention uses an Android system with a layered architecture as an example to exemplarily illustrate a software structure of the electronic device 100.

FIG. 2 is a block diagram of the software architecture of the UE101 of an embodiment of the present invention.

The layered architecture divides the software into several layers, each layer having a clear role and division of labor. The layers communicate with each other through a software interface. In some embodiments, the Android system is divided into four layers, an application layer, an application framework layer, an Android runtime (Android runtime) and system library, and a kernel layer from top to bottom.

The application layer may include a series of application packages.

As shown in fig. 2, the application package may include applications such as camera, gallery, calendar, phone call, map, navigation, WLAN, bluetooth, music, video, short message, etc.

The application framework layer provides an Application Programming Interface (API) and a programming framework for the application program of the application layer. The application framework layer includes a number of predefined functions.

As shown in FIG. 2, the application framework layers may include a window manager, content provider, view system, phone manager, resource manager, notification manager, and the like.

The window manager is used for managing window programs. The window manager can obtain the size of the display screen, judge whether a status bar exists, lock the screen, intercept the screen and the like.

The content provider is used to store and retrieve data and make it accessible to applications. The data may include video, images, audio, calls made and answered, browsing history and bookmarks, phone books, etc.

The view system includes visual controls such as controls to display text, controls to display pictures, and the like. The view system may be used to build applications. The display interface may be composed of one or more views. For example, the display interface including the short message notification icon may include a view for displaying text and a view for displaying pictures.

The telephony manager is used to provide communication functions for the UE 101. Such as management of call status (including on, off, etc.).

The resource manager provides various resources for the application, such as localized strings, icons, pictures, layout files, video files, and the like.

The notification manager enables the application to display notification information in the status bar, can be used to convey notification-type messages, can disappear automatically after a brief dwell, and does not require user interaction. Such as a notification manager used to inform download completion, message alerts, etc. The notification manager may also be a notification that appears in the form of a chart or scroll bar text at the top status bar of the system, such as a notification of a background running application, or a notification that appears on the screen in the form of a dialog window. For example, prompting text information in the status bar, sounding a prompt tone, vibrating the electronic device, flashing an indicator light, etc.

The Android Runtime comprises a core library and a virtual machine. The Android runtime is responsible for scheduling and managing an Android system.

The core library comprises two parts: one part is a function which needs to be called by java language, and the other part is a core library of android.

The application layer and the application framework layer run in a virtual machine. And executing java files of the application program layer and the application program framework layer into a binary file by the virtual machine. The virtual machine is used for performing the functions of object life cycle management, stack management, thread management, safety and exception management, garbage collection and the like.

The system library may include a plurality of functional modules. For example: surface managers (surface managers), Media Libraries (Media Libraries), three-dimensional graphics processing Libraries (e.g., OpenGL ES), 2D graphics engines (e.g., SGL), and the like.

The surface manager is used to manage the display subsystem and provide fusion of 2D and 3D layers for multiple applications.

The media library supports a variety of commonly used audio, video format playback and recording, and still image files, among others. The media library may support a variety of audio-video encoding formats, such as MPEG4, h.264, MP3, AAC, AMR, JPG, PNG, and the like.

The three-dimensional graphic processing library is used for realizing three-dimensional graphic drawing, image rendering, synthesis, layer processing and the like.

The 2D graphics engine is a drawing engine for 2D drawing.

The kernel layer is a layer between hardware and software. The inner core layer at least comprises a display driver, a camera driver, an audio driver and a sensor driver.

The following illustrates the workflow of the UE101 software and hardware in connection with capturing a photo scene.

When the touch sensor 180K receives a touch operation, a corresponding hardware interrupt is issued to the kernel layer. The kernel layer processes the touch operation into an original input event (including touch coordinates, a time stamp of the touch operation, and other information). The raw input events are stored at the kernel layer. And the application program framework layer acquires the original input event from the kernel layer and identifies the control corresponding to the input event. Taking the touch operation as a touch click operation, and taking a control corresponding to the click operation as a control of a camera application icon as an example, the camera application calls an interface of an application framework layer, starts the camera application, further starts a camera drive by calling a kernel layer, and captures a still image or a video through the camera 193.

After the UE camps on the cell, if a serious network congestion occurs, the self-healing mechanism of the UE may re-register or restart the modem, and both the re-registration and the restart of the modem may trigger a cell search action of the modem. When the UE is stuck, the user finds that the service still cannot be recovered after waiting for a long time, and may manually turn on and off the flight security mode to trigger cell search of the modem. After the flight safety mode is closed, the UE performs cell search operation to select a cell for camping.

The network congestion may be caused by cell congestion, may be caused by a high cell error code, or may be caused by a fault in the base station, and the specific representation form may be that the web page cannot be accessed. After cell search, the UE may select a new cell to camp on, thus solving the problem of network congestion caused by cell congestion.

However, when the UE performs cell search again to solve the stuck problem, the UE still selects the cell with the strongest signal to camp on without considering the stuck condition of the historical camping cell, and if the cell with the strongest signal strength is still the cell where the UE originally camps, the UE is likely to camp on the cell where the UE originally camps, and the cell search action does not cause the UE to camp on a new cell, so that the problem of UE stuck caused by cell congestion cannot be solved.

Fig. 3 is a schematic diagram of a current UE selecting a Cell to camp on, as shown in fig. 3, a Cell a and a Cell B exist in an environment where the UE is located, the Cell where the UE currently camps on is Cell a, and the signal strength of Cell a is better than that of Cell B, for example, the signal strength of Cell a is-90 dBm, and the signal strength of Cell B is-95 dBm. When Cell a has network congestion, data transmission between the UE and the base station is blocked, so that the UE is jammed in the network. At this point, the UE may re-register or restart the modem in an attempt to recover the cellular network, and the user may also manually turn on and off the flight security mode in an attempt to recover the cellular network. However, since the signal strength of Cell a is better than that of Cell B, after the above operations are performed, the Cell where the UE resides is still likely to be Cell a, and Cell a, as a Cell with congestion, may still cause the UE to generate network congestion, that is, the network congestion problem of the UE is not alleviated.

In order to solve the problem that a cell where the UE resides after cell search is performed again may still be a cell where network congestion occurs, an embodiment of the present application provides a cell ranking method, which may be applied to a user equipment UE, and can reduce the possibility that the UE still resides in the cell where network congestion occurs, in consideration of both signal strength and whether the cell has network congestion when the UE performs cell search again and selects a cell to reside according to a cell search result.

Fig. 4 is a flowchart illustrating a cell ranking method 100 according to an embodiment of the present disclosure. As shown in fig. 4, the cell ranking method 100 may include the following steps:

s101: and the UE searches the cell to obtain a search cell list.

The search cell table is a table obtained by arranging cells obtained by searching according to the signal strength after the UE carries out cell search. The cells with strong signal strength are arranged at the front end of the search cell list, and the cells with weak signal strength are arranged at the rear end of the search cell list. The search cell list may include all cells that the UE can search for at the current time. Fig. 5 is a schematic search Cell table provided in the embodiment of the present application, and as shown in fig. 5, four cells including Cell 1 and Cell 4 are located around the UE, where Cell 1 is the Cell 1 where the UE currently resides, and has a signal strength of-65 dBm, Cell 2 is the signal strength of-95 dBm, Cell 3 is the signal strength of-90 dBm, and Cell 4 is the signal strength of-100 dBm, and the sequence is as follows according to the signal strengths: cell 1, Cell 3, Cell 2, and Cell 4.

In some implementation manners, the UE may perform cell search according to the historical frequency point, and a cell arranged at the head of the search cell table after the search is a cell corresponding to the historical frequency point. The UE may also directly perform full-band scanning, and the cell arranged at the head of the search cell table after the search is the cell with the strongest signal strength, which may be the cell corresponding to the history frequency point or other cells.

The UE starts cell search, which may be caused by a self-healing mechanism when the UE is stuck, or by a user manually switching on and off a flight security mode when the UE is stuck, or by a UE being turned on to access a network or being disconnected from the network, or by cell handover or cell reselection.

S102: and judging whether a stuck cell exists in the search cell list, wherein the stuck cell is a cell which enables the UE to be stuck by the network after the UE resides.

S103: if the stuck cells exist in the search cell list, the stuck cells are arranged at the tail of the search cell list according to the time sequence of the stuck cells for causing the UE to be stuck by the network.

If the UE selects the stuck cell in the search cell table for camping, network sticking may continue to occur, and therefore, the stuck cell may be arranged at the tail of the search cell table, so that the cell arranged at the head of the search cell table is a cell with excellent signal strength and without causing network sticking to the UE, and the UE may first select the cell arranged at the head of the search cell table for camping.

For a stuck cell in the search cell list, the earlier the stuck cell makes the UE generate network stuck, the longer the time interval between the stuck cell and the current time when the stuck cell makes the UE generate network stuck, and the higher the possibility that the stuck cell no longer has network congestion in the time period between the stuck cell and the current time when the stuck cell makes the UE generate network stuck, therefore, the earlier the stuck cell makes the UE generate stuck, the earlier the position arrangement in the search cell list.

In some implementation manners, the cell ranking method provided in the embodiment of the present application may further include the following steps:

s104: if there is a stuck cell in the search cell list, the priority of the stuck cell is lowered.

The cells in the search cell list are given priority and may be used to rank the cells in the search cell list. The priority of the Canton cell in the search cell list is low, and the ranking is backward. The UE firstly selects the cell with high priority to reside, and does not select the cell with low priority to reside, so that the UE can be prevented from residing in the cell.

S105: if there is a stuck cell in the search cell list, the stuck cell is set as a forbidden cell to prohibit the user equipment from residing in the stuck cell.

In the technical solution provided in the embodiment of the present application, if a certain cell is a stuck cell, the stuck cell may be set as a cell Barred cell (cell Barred), so that the UE may be prevented from residing in the stuck cell.

The cell ranking method provided in the embodiment of the present application is further described below.

Fig. 6 is a flowchart illustrating a cell ranking method 200 according to an embodiment of the present disclosure. As shown in fig. 6, the cell ranking method provided in the embodiment of the present application includes the following steps:

s201: the UE performs cell search and performs S202.

S202: and judging whether the UE searches the cell.

If the UE searches for a cell, S203 is performed. If the UE searches for a cell, the UE may rank the searched cells according to the signal strength to obtain a search cell list.

If the UE does not search for a cell, S202 is continuously performed.

In order to determine whether a cell in a search cell list is a stuck cell, an embodiment of the present application provides a pre-stuck cell list, where the pre-stuck cell list includes stuck cells where a network is stuck in a process where a UE historically resides in a cell.

S203: and judging whether the cells with the aging timer value larger than or equal to the aging timer threshold exist in the pre-stuck cell table.

Wherein, the aging timer T _{pre,badcell,age} Is a timer set for a stuck cell when the stuck cell is added to the pre-stuck cell table. The larger the value of the aging timer is, the longer the time of the network jamming of the UE is from the current time by the jamming cell is, and the smaller the value of the aging timer is, the closer the time of the network jamming of the UE is from the current time by the jamming cell is. Since the network congestion problem in the stuck cell may have already been solved during the time period from the time when the stuck cell causes the UE to be stuck in the network to the current time, the larger the value of the aging timer is, the less likely the UE will be stuck after residing in the cell with the problem.

If there is a cell in the pre-stuck cell table with the aging timer value greater than or equal to the aging timer threshold, S204 is executed.

If there are no cells in the pre-stuck cell table with the aging timer value greater than or equal to the aging timer threshold, S205 is executed.

S204: the cells whose aging timer value is greater than the aging timer threshold are deleted from the pre-stuck cell table, and S205 is performed.

S205: and judging whether the pre-stuck cell list is an empty list or not. If the pre-stuck cell table is not empty, S206 is performed. If the pre-stuck cell table is empty, S209 is performed.

S206: the cells in the pre-stuck cell table are added to the stuck cell table, and S207 is performed.

S203-S205 are processes of screening the pre-stuck cell list, and the cells retained after screening may be added to the pre-stuck cell list through S206, that is, the pre-stuck cell list is obtained by the UE screening the pre-stuck cell list.

In some implementations, the stuck cell table may also be determined by: and adding the cell with the number of the resident UEs in the cell larger than the threshold as the stuck cell into the stuck cell table.

S207: and judging whether the searching cell list has the stuck cell or not according to the stuck cell list. Wherein, for a cell in the search cell list, if it can be found in the stuck cell list, the cell is a stuck cell, and if it cannot be found in the stuck cell list, the cell is not a stuck cell.

If the cell exists, executing S208; if there is no stuck cell, S209 is performed.

In some implementations, after the pre-stuck cell table is screened in S203-S205, the screened pre-stuck cell table may also be directly applied to S207 as a stuck cell table, so as to directly use the pre-stuck cell table to determine whether a cell in the search cell table is a stuck cell, that is, the pre-stuck cell table and the stuck cell table may be the same table. The implementation manner of the stuck cell table is determined, and the present application is not limited to this.

S208: and sequencing the stuck cells in the search cell list according to the value of the aging timer, and then placing the sorted stuck cells at the tail of the search cell list.

The value of the aging timer can be used for indicating the time sequence of the network jamming of the UE by the jamming cell, the larger the value of the aging timer is, the earlier the network jamming of the UE is caused by the jamming cell, the lower the possibility of the network jamming of the UE after the UE resides in the cell is, and the smaller the value of the aging timer is, the later the network jamming of the UE is caused by the jamming cell, the higher the possibility of the network jamming of the UE after the UE resides in the cell is, therefore, the value of the aging timer determines the position of the cell in the jamming cell table, and the earlier the position of the cell with the larger value of the aging timer is in the jamming cell table, the later the position of the cell with the smaller value of the aging timer is in the jamming cell table.

S209: the cells which are not the stuck cells in the search cell list are arranged at the head of the search cell list without changing the sequence.

The cells are sorted according to the signal intensity in the search cell list, and the sorting of the cells in the search cell list, which are not stuck cells, can be unchanged. Thus, the position of the cell in the search cell list is determined by the signal strength and the congestion degree of the cell, the cell arranged at the front end of the search cell list is the cell with the strongest signal strength and can not cause the network jamming of the UE, and when the UE selects the resident cell, the cell arranged at the front end of the search cell list can be preferentially selected.

Fig. 7 is a schematic diagram of sorting cells in a search Cell table according to a stuck Cell table according to an embodiment of the present application, as shown in fig. 7, for example, for Cell 1, Cell 2, Cell 3, and Cell 4, where the sorting of the cells in the search Cell table is Cell 1, Cell 3, Cell 2, and Cell 4, it is found by judgment that Cell 1 and Cell 2 are in the stuck Cell table, and the aging timer of Cell 1 is greater than the value of the aging timer of Cell 2, so that Cell 1 should be arranged in front of Cell 2, the sorting of Cell 1 and Cell 2 is located at the tail of the search Cell table, the sorting of Cell 3 and Cell 4 is located at the head of the search Cell table, and the sorting of the head part of the stuck Cell table is: cell 3, Cell 4, the complete final search Cell table is ordered as follows: cell 3, Cell 4, Cell 1, and Cell 2.

Fig. 8 is a schematic flowchart of forming a pre-stuck cell table according to an embodiment of the present application, and as shown in fig. 8, the embodiment of the present application further includes the following steps of forming the pre-stuck cell table.

The pre-stuck cell list includes UE history resident cells and current resident cells, and stuck occurs when the UE resides in these cells, so it is first necessary to determine whether the UE is stuck.

S301: and judging whether the UE foreground runs the application program. If the UE foreground has the application running, S302 is executed, and if the UE foreground has no application running, S320 is executed.

Generally, an application program is run in the foreground of the UE to indicate that the user is using the application program at the moment, and if the UE is stuck during the application program using process of the user, the use experience of the user is affected.

S302: judging whether the time delay of the TCP data packet of the UE is larger than or equal to a threshold or whether the UE does not receive the data, if the time delay of the TCP data packet is larger than or equal to the threshold or the UE does not receive the data, executing S303, and if the time delay of the TCP data packet is smaller than the threshold or the UE receives the data, executing S313.

The delay refers to the time required for transmitting a message or a packet from one end of a network to the other end, the TCP data packet delay is the time in the TCP data packet transmission process, and if the TCP data packet delay is greater than or equal to a threshold, the TCP data packet transmission is abnormal, which is specifically indicated that the UE is in network congestion and the factors affecting the TCP data packet transmission generally include the UE resident cell load or the TCP data packet size and the like.

If the TCP packet delay is greater than or equal to the threshold or the UE does not receive the data, the UE may have a network stuck and needs to perform S303 to make a further determination, and if the TCP packet delay is less than the threshold or the UE has received the data, the UE does not have a network stuck and may continue to perform S313.

When determining whether the UE receives data, it may determine a TCP (transmission control protocol) data packet, a UDP (user data packet protocol) data packet, or a DNS (domain name system) data packet, and if none of the three data packets is received, the transmission of the data packet of the UE is abnormal.

S303: and judging whether the downlink error rate of the UE is greater than or equal to a downlink error rate threshold or whether the uplink error rate of the UE is greater than or equal to an uplink error rate threshold so as to determine whether the UE is in a network stuck state. If the downlink error rate of the UE is less than the downlink error rate threshold or the uplink error rate of the UE is less than the uplink error rate threshold, S304 is executed, and if the downlink error rate of the UE is greater than or equal to the downlink error rate threshold or the uplink error rate of the UE is greater than or equal to the uplink error rate threshold, S305 is executed.

The bit error rate is an index for measuring the data transmission accuracy of data in a specified time, and the downlink bit error rate is greater than a threshold or the uplink bit error rate is greater than the threshold, which can also indicate that the UE has network jamming. If the time delay of the TCP data packet is greater than or equal to the threshold or the UE does not receive the data, and meanwhile, the downlink error rate of the UE is greater than or equal to the downlink error rate threshold or the uplink error rate of the UE is greater than or equal to the uplink error rate threshold, the UE can be directly determined to be in a network stuck state, the data transmission of the UE is abnormal, and the reason for generating the data transmission abnormality is that the network state of the UE is abnormal.

If the time delay of the TCP data packet is greater than or equal to the threshold or the UE does not receive the data, and meanwhile the downlink error rate of the UE is less than or equal to the downlink error rate threshold or the uplink error rate of the UE is less than or equal to the error rate threshold, namely the time delay of the TCP data packet is greater than or equal to the threshold but the uplink error rate or the uplink error rate is not abnormal in the data transmission process of the UE, in order to further confirm whether the data transmission of the UE is abnormal, namely further determine whether the UE is in a network stuck state, the uplink traffic volume and the downlink traffic volume of the UE can be judged.

In some implementations, it may be separately determined whether a TCP packet delay of the UE is greater than or equal to a threshold or whether the UE does not receive data, or it may directly determine whether the UE is in a network stuck state, that is, if the TCP packet delay of the UE is greater than or equal to the threshold or the UE does not receive data, the UE is in the network stuck state, and if the TCP packet delay of the UE is less than the threshold or the UE receives data, the UE is not in the network stuck state. The method and the device for determining whether the UE is in the network stuck state are not particularly limited.

In some implementations, the relationship between the downlink error rate or the uplink error rate of the UE and the threshold is separately determined, and it may also be directly determined whether the UE is in the network stuck state, that is, if the downlink error rate of the UE is greater than or equal to the downlink error rate threshold or the uplink error rate is greater than or equal to the uplink error rate threshold, the UE is in the network stuck state, and if the downlink error rate of the UE is less than the downlink error rate threshold or the uplink error rate is less than the uplink error rate threshold, the UE is not in the network stuck state. The method and the device for determining whether the UE is in the network stuck state are not particularly limited.

S304: and judging whether the downlink traffic of the UE is less than or equal to a downlink traffic threshold or whether the uplink traffic of the UE is less than or equal to an uplink traffic threshold so as to determine whether the UE is in a network stuck state. If the downlink traffic volume of the UE is less than or equal to the downlink traffic volume threshold or the uplink traffic volume is less than or equal to the uplink traffic volume threshold, S305 is performed, and if the downlink traffic volume of the UE is greater than the downlink traffic volume threshold or the uplink traffic volume is greater than the uplink traffic volume threshold, S313 is performed.

In the embodiment of the application, if the TCP packet delay is greater than or equal to the threshold or the UE does not receive the data, and meanwhile, the downlink traffic of the UE is less than or equal to the downlink traffic threshold or the uplink traffic is less than or equal to the uplink traffic threshold, the UE data transmission is abnormal, and it may also be directly determined that the UE is in a network stuck state.

In some implementations, the relationship between the uplink traffic or the downlink traffic of the UE and the threshold is separately determined, and it may also be directly determined whether the UE is in the network stuck state, that is, if the downlink traffic of the UE is less than or equal to the downlink traffic threshold or the uplink traffic is less than or equal to the uplink traffic threshold, the UE is in the network stuck state, and if the downlink traffic of the UE is greater than the downlink traffic threshold or the uplink traffic is greater than the uplink traffic threshold, the UE is not in the network stuck state. The method and the device for determining whether the UE is in the network stuck state are not particularly limited.

S305: and judging whether a stuck timer T of the UE is started or not, wherein the stuck timer is a timer for recording the duration of the UE in a network stuck state continuously.

If the stuck timer of the UE has been started, S306 is performed, and if the stuck timer of the UE has not been started, S321 is performed.

In the embodiment of the present application, if the stuck timer is in the on state, the stuck state of the UE has already caused the stuck timer to be on before, i.e., the UE keeps remaining in the stuck state continuously. If the stuck timer is not started, S321 is executed to set the stuck timer for the UE and start the stuck timer, so as to record the time length for the UE to enter the stuck state.

S306: and judging whether the current resident cell of the UE and the cell when judging whether the foreground of the UE runs the application program are the same cell or not so as to determine whether the resident cell of the UE is changed or not. If the UE-camped cell has not changed, S307 is performed, and if the UE-camped cell has changed, S323 is performed.

In the operation process of the UE, there may be some situations that the UE camped cell changes. For example, the self-healing mechanism of the UE causes the UE to change the camping cell when the UE is stuck. Or if the user perceives that the UE is stuck, the user may manually trigger a UE cell search operation and manually select a search cell table obtained by the UE cell search operation to determine a cell where the UE resides. Therefore, the embodiment of the application also judges whether the cell where the UE resides is changed.

Specific examples are as follows: when judging whether the UE foreground runs the application program, the Cell where the UE resides may be Cell P, after judging whether the UE is stuck, the Cell where the UE resides is changed from Cell P to Cell Q, if the UE-camped cell is not changed at this time, the process continues to S307, if the value of the stuck timer is less than or equal to the stuck timer threshold, the method provided by the embodiment of the present application will continue to execute S201 to determine whether the UE is still stuck, however, at this time, the Cell where the UE camps is changed from Cell P to Cell Q, and when S201 and subsequent steps are continuously executed, the execution result is the result when the UE camps on Cell Q, this execution result cannot be used to determine whether to add Cell P to the pre-stuck Cell table, and therefore, a determination may be made whether the cell in which the UE resides has changed before the timeout of the stuck timer.

If the Cell where the UE currently resides is Cell Q, and the Cell when determining whether the UE foreground runs the application is Cell P, the serving Cell where the UE resides has been changed, and the stuck timer of the UE is set due to the Cell P residing, so that after determining that the serving Cell where the UE resides is changed, S323 may be executed to stop the stuck timer.

S307: and judging whether the value of the stuck timer is greater than or equal to the threshold of the stuck timer. If the value of the stuck timer is greater than the stuck timer threshold, it indicates that the stuck state of the UE has been sustained for a period of time, and if the value of the stuck timer is less than or equal to the stuck timer threshold, it cannot be determined whether the stuck event causing the stuck timer to open is sustained stuck, and at this time, the determination process of S301 may be performed again to further determine.

If the value of the stuck timer is greater than or equal to the stuck timer threshold, S308 is executed, and if the value of the stuck timer is less than the stuck timer threshold, S301 is executed.

S308: the stuck timer is stopped and S309 is executed.

S309: and acquiring cell information of the cell where the UE currently resides, and executing S310. The cell information of the cell where the UE currently resides may be a cell identifier ci (cell identifier), a Frequency point Frequency, a physical cell identifier pci (physical cell identifier), and the like.

S310: and judging whether the cell where the UE currently resides is in a pre-stuck cell list or not according to the cell information of the cell where the UE currently resides. If the cell where the UE currently resides is in the pre-stuck cell list, S324 is performed, and if the cell where the UE currently resides is not in the pre-stuck cell list, S311 is performed.

S311: it is determined whether the number of cells in the pre-stuck cell list has reached a maximum number of cells that the pre-stuck cell list can accommodate. If the number of cells in the pre-stuck cell table has reached the maximum number of cells that can be accommodated in the pre-stuck cell table, S312 is performed, and if the number of cells in the pre-stuck cell table has not reached the maximum number of cells that can be accommodated in the pre-stuck cell table, S325 is performed to add the currently camped cell of the UE into the pre-stuck cell table.

If the number of cells in the pre-stuck cell list has reached the maximum number of cells that the pre-stuck cell list can accommodate, a situation may arise where the addition fails when the UE currently camped cell is added to the pre-stuck cell list. The aging timer value is large, which means that the time for the cell to enter the pre-stuck cell table is long, and the possibility that the UE is stuck after the cell resides in the cell is small, so that the cell with the largest aging timer value can be deleted from the pre-stuck cell table in order to smoothly add the current stuck cell as a problem cell into the pre-stuck cell table.

S312: the cell having the largest aging timer value is deleted from the pre-stuck cell table, and S325 is performed.

S313: and judging whether the pre-stuck cell table is an empty table or not, if so, executing S301, and if not, executing S314.

After determining that the UE is not in the network stuck state, if the pre-stuck cell table is empty, there is no cell causing the UE to be stuck, and S301 may be executed to continue to determine the network state of the UE.

S314: and judging whether the cell where the UE currently resides is in a pre-stuck cell list or not according to the cell information of the cell where the UE currently resides. If the cell where the UE currently resides is in the pre-stuck cell list, S315 is performed, and if the cell where the UE currently resides is not in the pre-stuck cell list, S301 is performed.

If the UE currently resides in the pre-stuck cell list, the UE may still select the currently residing cell when selecting the residing cell according to the pre-stuck cell list, so that after determining through S301-S314 that the residing cell does not cause the UE to be network stuck and the residing cell is not in the pre-stuck cell list, S301 may be executed to continuously determine whether the UE has network stuck. After determining that the camped cell does not cause the UE to be network-stuck and that the camped cell is in the pre-stuck cell list through S301-S314, S315 may be performed to determine whether to delete the camped cell from the pre-stuck cell list.

S315: judging stuck recovery timer T of UE _recovery Whether it has been started, wherein the stuck recovery timer is a timer indicating a duration for which the UE is continuously in the stuck state.

If the stuck recovery timer of the UE has been started, S316 is performed, and if the stuck recovery timer of the UE has not been started, S326 is performed.

If the UE is not currently stuck in the pre-stuck cell list, but the cell where the UE currently resides is in the pre-stuck cell list, the currently residing cell once puts the UE in the stuck state and is added into the pre-stuck cell list. However, the UE is not in the stuck state when the UE stays in the cell at the current time, so that a stuck recovery timer may be set for the UE to record the duration of the UE staying in the cell and remaining in the stuck state.

If the stuck recovery timer is on, the stuck recovery timer has been turned on by the non-stuck state of the UE before that time, i.e., the UE continues to remain in the non-stuck state. If the stuck-at recovery timer is not turned on, S326 may be executed to set the stuck-at recovery timer to record the time length for the UE to enter the stuck-at state.

S316: judging whether the current resident cell of the UE and the cell when judging whether the foreground of the UE runs the application program are the same cell or not so as to determine whether the current resident cell of the UE is changed or not, executing S317 if the current resident cell of the UE is not changed, and executing S328 if the current resident cell of the UE is changed.

In the operation process of the UE, there may be some situations where the UE-camped cell is changed, and for a specific example, reference may be made to the description of S306, which is not described herein again. In order to accurately delete the cell which does not cause the UE to be stuck from the pre-stuck cell table, the embodiment of the present application further determines whether the cell where the UE resides is changed.

Specific examples are as follows: when judging whether an application program is operated in a UE foreground, a Cell where the UE resides can be a Cell H, after judging that the UE does not have a jam, namely after a jam recovery timer is started, the Cell where the UE resides is changed from the Cell H to a Cell I, if the Cell where the UE resides is not changed at the moment, S317 is continuously executed, if the numerical value of the jam recovery timer is less than or equal to a threshold of the jam recovery timer, the method provided by the embodiment of the application continuously executes S301 to determine whether the UE is still in a non-jam state, however, as the Cell where the UE resides is changed from the Cell H to the Cell I at the moment, when S301 and subsequent steps are continuously executed, the execution result is a result when the UE resides in the Cell I, and the execution result cannot be used for determining whether the Cell H is deleted from a pre-jam Cell table, so that before the jam recovery timer is overtime, a determination is made whether a cell in which the UE camps has changed.

S317: and judging whether the numerical value of the stuck recovery timer is greater than or equal to the threshold of the stuck recovery timer.

If the value of the stuck recovery timer is greater than or equal to the stuck recovery timer threshold, S318 is executed, and if the value of the stuck recovery timer is less than the stuck recovery timer threshold, S301 is executed.

The value of the stuck recovery timer is greater than or equal to the stuck recovery timer threshold, then the UE residing in the current resident cell is in the non-stuck state, and the non-stuck state lasts for a period of time, at this time, the current resident cell of the UE can be deleted from the pre-stuck cell table, on one hand, the UE can stay in the cell continuously, and on the other hand, the storage pressure of the UE on the pre-stuck cell table can be reduced.

If the UE is in the non-stuck state, and the stuck recovery timer has been started, but the value of the stuck recovery timer is less than or equal to the stuck recovery timer threshold, the UE is stuck in the current cell and is in the non-stuck state, but the duration of the non-stuck state is short, and it cannot be determined whether the UE is stuck in the cell subsequently, so S301 may be continuously performed to determine whether the UE is in the stuck state again.

S318: the stuck recovery timer is stopped and S319 is executed.

S319: the cell where the UE currently resides is deleted from the pre-stuck cell table, and S301 is executed.

The value of the stuck recovery timer is greater than the threshold of the stuck recovery timer, then the UE residing in the current resident cell is in the non-stuck state, and the non-stuck state lasts for a period of time, at this time, the current resident cell of the UE can be deleted from the pre-stuck cell list, on one hand, the UE can stay in the cell continuously, and on the other hand, the storage pressure of the UE on the pre-stuck cell list can be reduced.

S320: the jam timer and the jam recovery timer are stopped, and S301 is executed.

After S201, if the UE foreground does not run the application, the time duration of the UE holding the card-on state may be recorded, and the time duration of the UE not holding the card-on state may be recorded.

S321: a stuck timer is set for the UE, and S322 is performed.

S322: the stuck timer is started and S306 is executed.

S323: the jam timer is stopped and S301 is executed.

S324: and resetting the aging timer of the cell where the UE currently resides to count the aging timer again, and executing S301.

If the value of the stuck timer is greater than or equal to the stuck timer threshold and the current resident cell is in the pre-stuck cell list, the current resident cell still causes the stuck of the UE within the time period from the beginning of the aging timer to the current time, and if the value of the aging timer exceeds the aging timer threshold, the cell is deleted from the pre-stuck cell list, so that the aging timer of the current resident cell is reset at the moment to continuously monitor the current resident cell in order to avoid the value of the aging timer of the current resident cell being greater than the aging timer threshold.

S325: adding the cell where the UE currently resides into the pre-stuck cell list, setting an aging timer for the cell where the UE currently resides, and executing S301.

S326: a stuck-recovery timer is set for the UE, and S327 is performed.

S327: the stuck-recovery timer is started and S316 is executed.

S328: the stuck-recovery timer is stopped and S301 is executed.

It should be noted that, each threshold mentioned in the embodiment of the present application may be set according to an actual situation, and this is not specifically limited in the present application.

In the embodiments provided in the present application, the schemes of the cell ranking method provided in the present application are introduced from the perspective of the terminal device UE. It is understood that the terminal equipment UE includes hardware structures and/or software modules for performing the functions in order to implement the functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

Fig. 9 is a schematic structural diagram of a cell ranking apparatus according to an embodiment of the present application.

In some embodiments, the UE may implement the corresponding functions through the hardware apparatus shown in fig. 9. As shown in fig. 9, the cell ranking apparatus may include: a transceiver 1201, a memory 1202, and a processor 1203.

In one implementation, the processor 1203 may include one or more processing units, such as: the processor 1203 may include an application processor, a modem processor, a graphics processor, an image signal processor, a controller, a video codec, a digital signal processor, a baseband processor, and/or a neural network processor, among others. The different processing units may be separate devices or may be integrated into one or more processors. The memory 1202 is coupled to the processor 1203 for storing various software programs and/or sets of instructions. In some embodiments, memory 1202 may include volatile memory and/or nonvolatile memory. The transceiver 1201 is, for example, a radio frequency circuit, a mobile communication module, a wireless communication module, and the like, which may be included to implement a wireless communication function of the UE.

In one embodiment, the software programs and/or sets of instructions in the memory 1202, when executed by the processor 1203, cause the UE to perform the method steps of: carrying out cell search to obtain a search cell list; judging whether a stuck cell exists in the search cell list, wherein the stuck cell is a cell which enables the user equipment to be stuck by a network after the user equipment resides; if the search cell list has the stuck cells, arranging the stuck cells at the tail of the search cell list according to the time sequence of the stuck cells causing the user equipment to be stuck by the network; if no stuck cell exists in the search cell list, the ordering of the cells in the search cell list is not changed. In this way, for the stuck cells in the search cell list, the stuck cells are arranged at the tail of the search cell list according to the time sequence of the stuck cells causing the network sticking of the user equipment, so that the positions of the cells in the search cell list are determined by the signal intensity and the congestion degree of the cells together, the cells arranged at the tail of the search cell list are the stuck cells, and the cells arranged at the head of the search cell list are the cells with strong signal intensity and without causing the network sticking of the user equipment, thereby avoiding the user equipment from continuously residing in the congested cells which have been previously resided, and solving the problem of the network sticking of the user equipment.

Optionally, when the software program and/or the plurality of sets of instructions in the memory 1202 are executed by the processor 1203, the UE is specifically configured to perform the following method steps: if there is a stuck cell in the search cell list, the priority of the stuck cell is lowered. In this way, the user equipment can select a cell with a higher priority to camp on, but not a stuck cell with a lower priority.

Optionally, when the software program and/or the plurality of sets of instructions in the memory 1202 are executed by the processor 1203, the UE is specifically configured to perform the following method steps: if there is a stuck cell in the search cell list, the stuck cell is set as a forbidden cell to prohibit the user equipment from residing in the stuck cell.

Optionally, when the software program and/or the plurality of sets of instructions in the memory 1202 are executed by the processor 1203, the UE is specifically configured to perform the following method steps: and judging whether a stuck cell exists in the search cell list or not according to the stuck cell list, wherein the stuck cell list is obtained by screening a pre-stuck cell list, and the pre-stuck cell list comprises stuck cells which enable the user equipment to be stuck by a network in the process of the user equipment staying in the cells historically. Therefore, the stuck cell list comprises stuck cells causing the user equipment to be stuck by the network in the process of the user equipment staying in the cells historically, and the stuck cells in the search cell list can be found out by judging whether the stuck cells exist in the search cell list or not by using the stuck cell list.

Optionally, when the software program and/or the plurality of sets of instructions in the memory 1202 are executed by the processor 1203, the UE is specifically configured to perform the following method steps: acquiring a pre-stuck cell list; judging whether a cell with an aging timer value larger than or equal to an aging timer threshold exists in a pre-stuck cell table, wherein the aging timer is a timer set for a stuck cell when the stuck cell is added into the pre-stuck cell table; deleting the cells of which the aging timer value is greater than or equal to the aging timer threshold from the pre-stuck cell list; the cells in the pre-stuck cell list are added to the stuck cell list. The larger the value of the aging timer is, the longer the network seizure time of the UE is caused by the stuck cell from the current time, and the smaller the value of the aging timer is, the closer the network seizure time of the UE is caused by the stuck cell from the current time. Deleting the cell with the aging timer value larger than the aging timer threshold in the stuck cell list, so that the user equipment can select the cell for residence, and simultaneously, the storage pressure of the user equipment on the pre-stuck cell list and the stuck cell list can be relieved.

Optionally, when the software program and/or the plurality of sets of instructions in the memory 1202 are executed by the processor 1203, the UE is specifically configured to perform the following method steps: judging whether the pre-stuck cell list is an empty list or not; if the pre-stuck cell table is not empty, the cells in the pre-stuck cell table are added to the stuck cell table.

Optionally, when the software program and/or the plurality of sets of instructions in the memory 1202 are executed by the processor 1203, the UE is specifically configured to perform the following method steps: judging whether an application program runs on a foreground of user equipment or not; and if the application program runs on the foreground of the user equipment, judging whether the user equipment is in a network blocking state or not. When the user uses the user equipment, whether the user equipment is in a network blocking state is judged, and the user experience is prevented from being influenced by the network blocking of the user equipment.

Optionally, when the software program and/or the plurality of sets of instructions in the memory 1202 are executed by the processor 1203, the UE is specifically configured to perform the following method steps: judging whether the time delay of a Transmission Control Protocol (TCP) data packet of the user equipment is greater than or equal to a threshold or whether the user equipment does not receive data; if the TCP data packet of the user equipment is smaller than the threshold or the user equipment receives the data, determining that the user equipment is not in a network blocking state; if the time delay of a TCP data packet of the user equipment is more than or equal to the threshold or the user equipment does not receive the data, judging whether the downlink error rate of the user equipment is more than or equal to the downlink error rate threshold or whether the uplink error rate of the user equipment is more than or equal to the uplink error rate threshold; and if the downlink error rate of the user equipment is greater than or equal to the downlink error rate threshold or the uplink error rate is greater than or equal to the uplink error rate threshold, determining that the user equipment is in a network stuck state.

Optionally, the software program and/or sets of instructions in the memory 1202, when executed by the processor 1203, further cause the UE to perform the following method steps: if the downlink error rate of the user equipment is less than the downlink error rate threshold or the uplink error rate is less than the uplink error rate threshold, judging whether the downlink traffic volume of the user equipment is less than or equal to the downlink traffic volume threshold or the uplink traffic volume is less than or equal to the uplink traffic volume threshold; if the downlink traffic of the user equipment is less than or equal to the downlink traffic threshold or the uplink traffic is less than or equal to the uplink traffic threshold, determining that the user equipment is in a network stuck state; and if the downlink traffic of the user equipment is greater than the downlink traffic threshold or the uplink traffic is greater than the uplink traffic threshold, determining that the user equipment is not in a network stuck state.

Optionally, the software program and/or sets of instructions in the memory 1202, when executed by the processor 1203, further cause the UE to perform the following method steps: if the user equipment is in the network blocking state, judging whether a blocking timer of the user equipment is started or not, wherein the blocking timer is used for recording the time length of the user equipment in the network blocking state; if the user equipment does not have the started stuck timer, the stuck timer is set for the user equipment. And setting a blocking timer for the user equipment to record the duration of the user equipment in the network blocking state continuously, so that the accuracy of the pre-blocking cell list is improved.

Optionally, the software program and/or sets of instructions in the memory 1202, when executed by the processor 1203, further cause the UE to perform the following method steps: if the card pause timer of the user equipment is started, judging whether the current resident cell of the user equipment and the cell when judging whether the foreground of the user equipment runs the application program are the same cell or not so as to determine whether the resident cell of the user equipment is changed or not; if the resident cell of the user equipment is changed, stopping the blocking timer and re-executing the step of judging whether the foreground of the user equipment runs the application program. And judging that the cell where the user equipment resides is changed to determine whether the network blockage state of the user equipment is changed or not, so that the accuracy of the pre-blockage cell list is improved.

Optionally, the software program and/or sets of instructions in the memory 1202, when executed by the processor 1203, further cause the UE to perform the following method steps: if the resident cell of the user equipment is not changed, judging whether the numerical value of the stuck timer is more than or equal to the threshold of the stuck timer; and if the numerical value of the pause timer is smaller than the threshold of the pause timer, re-executing the step of judging whether the foreground of the user equipment runs the application program. And judging whether the value of the stuck timer is greater than or equal to a threshold or not so as to determine whether the user equipment is stuck continuously or not and improve the accuracy of the pre-stuck cell list.

Optionally, the software program and/or sets of instructions in the memory 1202, when executed by the processor 1203, further cause the UE to perform the following method steps: if the value of the blocking timer is larger than or equal to the threshold of the blocking timer, stopping the blocking timer, and judging whether the cell where the user equipment currently resides is in a pre-blocking cell list or not according to the cell information of the cell where the user equipment currently resides; if the current resident cell of the user equipment is not in the pre-stuck cell list, adding the current resident cell of the user equipment into the pre-stuck cell list, and setting an aging timer for the current resident cell of the user equipment; if the current resident cell of the user equipment is in the pre-stuck cell list, resetting the aging timer of the current resident cell of the user equipment so as to restart the aging timer, and re-executing the step of judging whether the foreground of the user equipment runs the application program. The numerical value of the aging timer is used for representing the time sequence of the network jamming of the user equipment by the jamming cell, the larger the numerical value of the aging timer is, the earlier the network jamming of the user equipment by the jamming cell is, the smaller the numerical value of the aging timer is, and the later the network jamming of the user equipment by the jamming cell is, the numerical value of the aging timer determines the position of the cell in the jamming cell list.

Optionally, the software program and/or sets of instructions in the memory 1202, when executed by the processor 1203, further cause the UE to perform the following method steps: before the step of adding the current resident cell of the user equipment into the pre-stuck cell list and setting an aging timer for the current resident cell of the user equipment, judging whether the number of the cells in the pre-stuck cell list reaches the maximum value of the number of the cells which can be accommodated in the pre-stuck cell list or not; if the maximum number of cells that the pre-stuck cell list can accommodate has been reached, the cell with the largest value of the aging timer in the pre-stuck cell list is deleted from the pre-stuck cell list. And judging whether the number of the cells in the pre-stuck cell list reaches the maximum value of the number of the cells which can be accommodated in the pre-stuck cell list or not so as to ensure that the stuck cells are smoothly added into the pre-stuck cell list.

Optionally, the software program and/or sets of instructions in the memory 1202, when executed by the processor 1203, further cause the UE to perform the following method steps: if the user equipment is not in the network blocking state, judging whether the pre-blocking cell list is an empty list or not; if the pre-stuck cell list is an empty list, re-executing the step of judging whether the foreground of the user equipment runs the application program; if the pre-stuck cell list is not an empty list, judging whether the current resident cell of the user equipment is in the pre-stuck cell list or not according to the cell information of the current resident cell of the user equipment; and if the current resident cell of the user equipment is not in the pre-stuck cell list, re-executing the step of judging whether the foreground of the user equipment runs the application program. When the user equipment is not in the network stuck state, whether the pre-stuck cell table is an empty table or not is judged, and whether a cell causing the user equipment to be stuck exists or not can be determined.

Optionally, the software program and/or sets of instructions in the memory 1202, when executed by the processor 1203, further cause the UE to perform the following method steps: if the current resident cell of the user equipment is in the pre-stuck cell table, judging whether a stuck recovery timer of the user equipment is started or not, wherein the stuck recovery timer is a timer used for indicating the duration of the user equipment in a non-stuck state; and if the user equipment does not have the started stuck recovery timer, setting the stuck recovery timer for the user equipment. And setting a stuck recovery timer for the user equipment to record the duration of the user equipment in the non-stuck state continuously, so that the accuracy of the pre-stuck cell list is improved.

Optionally, the software program and/or sets of instructions in the memory 1202, when executed by the processor 1203, further cause the UE to perform the following method steps: if the pause recovery timer of the user equipment is started, judging whether the current resident cell of the user equipment and the cell when judging whether the foreground of the user equipment runs the application program are the same cell or not so as to determine whether the current resident cell of the user equipment is changed or not; if the current resident cell of the user equipment is changed, stopping the pause recovery timer and re-executing the step of judging whether the foreground of the user equipment runs the application program. And judging that the cell where the user equipment resides is changed to determine whether the non-stuck state of the user equipment is changed or not, so that the accuracy of the pre-stuck cell list is improved.

Optionally, the software program and/or sets of instructions in the memory 1202, when executed by the processor 1203, further cause the UE to perform the following method steps: if the current resident cell of the user equipment is not changed, judging whether the numerical value of the stuck recovery timer is more than or equal to the threshold of the stuck recovery timer; if the numerical value of the pause recovery timer is smaller than the threshold of the pause recovery timer, the step of judging whether the foreground of the user equipment runs the application program is executed again; if the value of the pause recovery timer is larger than or equal to the threshold of the pause recovery timer, stopping the pause recovery timer, deleting the current resident cell of the user equipment from the pre-pause cell table, and re-executing the step of judging whether the foreground of the user equipment runs the application program. And judging whether the value of the stuck recovery timer is greater than or equal to a threshold or not so as to determine whether the user equipment is continuously in a non-stuck state or not and improve the accuracy of the pre-stuck cell list.

Optionally, the software program and/or sets of instructions in the memory 1202, when executed by the processor 1203, further cause the UE to perform the following method steps: if the user equipment foreground does not run the application program, stopping the pause timer and the pause recovery timer, and re-executing the step of judging whether the application program is run by the user equipment foreground.

In addition, in some embodiments, the UE may implement the corresponding functions through a software module. As shown in fig. 10, the cell ranking device for implementing the function of UE behavior includes: cell search section 1301, determination section 1302, and sorting section 1303.

The cell search unit 1301 is configured to perform cell search to obtain a search cell table; a determining unit 1302, configured to determine whether a stuck cell exists in the search cell table, where the stuck cell is a cell where the user equipment is stuck in a network after the user equipment resides; a sorting unit 1303, configured to, if there is a stuck cell in the search cell table, arrange the stuck cell at the tail of the search cell table according to a time sequence in which the stuck cell causes network sticking of the UE; the sorting unit 1303 is further configured to not change the sorting of the cells in the search cell table if there is no stuck cell in the search cell table.

In this way, for the stuck cells in the search cell list, the stuck cells are arranged at the tail of the search cell list according to the time sequence of the stuck cells causing the network sticking of the user equipment, so that the positions of the cells in the search cell list are determined by the signal intensity and the congestion degree of the cells together, the cells arranged at the tail of the search cell list are the stuck cells, and the cells arranged at the head of the search cell list are the cells with strong signal intensity and without causing the network sticking of the user equipment, thereby avoiding the user equipment from continuously residing in the congested cells which have been previously resided, and solving the problem of the network sticking of the user equipment.

Embodiments of the present application also provide a computer storage medium, in which program instructions are stored, and when the program instructions are executed on a computer, the computer is enabled to execute the methods in the above aspects and the various implementation manners.

Embodiments of the present application also provide a computer program product, which when run on a computer, causes the computer to perform the methods in the above aspects and their various implementations.

The application also provides a chip system. The system-on-chip comprises a processor for enabling the apparatus or device to perform the functions referred to in the above aspects, e.g. to generate or process information referred to in the above methods. In one possible design, the system-on-chip further includes a memory for storing program instructions and data necessary for the above-described apparatus or device. The chip system may be formed by a chip, or may include a chip and other discrete devices.

The above embodiments are only for illustrating the embodiments of the present invention and are not to be construed as limiting the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made on the basis of the embodiments of the present invention shall be included in the scope of the present invention.

Claims (21)

1. A cell ordering method applied to User Equipment (UE), the method comprising:

carrying out cell search to obtain a search cell list;

judging whether a stuck cell exists in the search cell list, wherein the stuck cell is a cell which enables the user equipment to be stuck by a network after the user equipment resides;

the step of judging whether the card pause cell exists in the search cell list comprises the following steps:

judging whether a stuck cell exists in a search cell list or not according to a stuck cell list, wherein the stuck cell list is obtained by screening a pre-stuck cell list, and the pre-stuck cell list comprises stuck cells which enable user equipment to be stuck by a network in the process of the user equipment staying in the cells historically;

the step of screening the pre-stuck cell list comprises:

acquiring a pre-stuck cell list;

judging whether a cell with an aging timer value which is more than or equal to an aging timer threshold exists in the pre-stuck cell table, wherein the aging timer is a timer which is set for a stuck cell when the stuck cell is added into the pre-stuck cell table;

deleting the cells with the aging timer value more than or equal to the aging timer threshold from the pre-stuck cell list;

adding cells in the pre-stuck cell list to the stuck cell list;

if the search cell list has the stuck cells, arranging the stuck cells at the tail of the search cell list according to the time sequence of the stuck cells causing the user equipment to be stuck by the network;

if no stuck cell exists in the search cell list, the ordering of the cells in the search cell list is not changed.

2. The cell ranking method of claim 1, further comprising:

and if the stuck cell exists in the search cell list, reducing the priority of the stuck cell.

3. The cell ranking method of claim 1, further comprising:

and if the stuck cell exists in the search cell list, setting the stuck cell as a forbidden cell so as to forbid the user equipment from residing in the stuck cell.

4. The cell ranking method of claim 1, wherein the step of adding cells in the pre-stuck cell list to the stuck cell list comprises:

judging whether the pre-stuck cell list is an empty list or not;

if the pre-stuck cell table is not empty, the cells in the pre-stuck cell table are added to the stuck cell table.

5. The cell ranking method according to claim 1 or 4, wherein the step of determining a pre-stuck cell list comprises:

judging whether an application program runs on a foreground of user equipment or not;

and if the application program runs on the foreground of the user equipment, judging whether the user equipment is in a network blocking state or not.

6. The cell ranking method of claim 5, wherein the step of determining whether the UE is in a network stuck state comprises:

judging whether the time delay of a Transmission Control Protocol (TCP) data packet of the user equipment is greater than or equal to a threshold or whether the user equipment does not receive data;

if the TCP data packet of the user equipment is smaller than the threshold or the user equipment receives the data, determining that the user equipment is not in a network blocking state;

if the time delay of a TCP data packet of the user equipment is more than or equal to the threshold or the user equipment does not receive the data, judging whether the downlink error rate of the user equipment is more than or equal to the downlink error rate threshold or whether the uplink error rate of the user equipment is more than or equal to the uplink error rate threshold;

and if the downlink error rate of the user equipment is greater than or equal to the downlink error rate threshold or the uplink error rate is greater than or equal to the uplink error rate threshold, determining that the user equipment is in a network stuck state.

7. The cell ranking method of claim 6, wherein the step of determining whether the UE is in a network stuck state further comprises:

if the downlink error rate of the user equipment is less than the downlink error rate threshold or the uplink error rate is less than the uplink error rate threshold, judging whether the downlink traffic volume of the user equipment is less than or equal to the downlink traffic volume threshold or the uplink traffic volume is less than or equal to the uplink traffic volume threshold;

if the downlink traffic of the user equipment is less than or equal to the downlink traffic threshold or the uplink traffic is less than or equal to the uplink traffic threshold, determining that the user equipment is in a network stuck state;

and if the downlink traffic of the user equipment is greater than the downlink traffic threshold or the uplink traffic is greater than the uplink traffic threshold, determining that the user equipment is not in a network stuck state.

8. The cell ranking method of claim 7, wherein if the UE is in a network stuck state, further comprising:

judging whether a jamming timer of the user equipment is started or not, wherein the jamming timer is used for recording the time length of the user equipment in a network jamming state;

and if the user equipment does not have the started jamming timer, setting the jamming timer for the user equipment.

9. The cell ranking method of claim 8, further comprising:

if the card pause timer of the user equipment is started, judging whether the current resident cell of the user equipment and the cell when judging whether the foreground of the user equipment runs the application program are the same cell or not so as to determine whether the resident cell of the user equipment is changed or not;

and if the resident cell of the user equipment is changed, stopping the pause timer and re-executing the step of judging whether the foreground of the user equipment runs the application program.

10. The cell ranking method of claim 9, further comprising:

if the resident cell of the user equipment is not changed, judging whether the numerical value of the stuck timer is larger than or equal to the threshold of the stuck timer;

and if the numerical value of the stuck timer is smaller than the threshold of the stuck timer, re-executing the step of judging whether the foreground of the user equipment runs the application program.

11. The cell ranking method according to any of claims 8-10, further comprising:

if the value of the stuck timer is larger than or equal to the threshold of the stuck timer, stopping the stuck timer, and judging whether the current resident cell of the user equipment is in the pre-stuck cell list or not according to the cell information of the current resident cell of the user equipment;

if the current resident cell of the user equipment is not in the pre-stuck cell list, adding the current resident cell of the user equipment into the pre-stuck cell list, and setting an aging timer for the current resident cell of the user equipment;

if the current resident cell of the user equipment is in the pre-stuck cell table, resetting the aging timer of the current resident cell of the user equipment so as to restart the aging timer, and re-executing the step of judging whether the foreground of the user equipment runs the application program.

12. The cell ranking method of claim 11, wherein before the step of adding the currently camped cell of the ue into the pre-stuck cell list and setting the aging timer for the currently camped cell of the ue, further comprising:

judging whether the number of the cells in the pre-stuck cell list reaches the maximum value of the number of the cells which can be accommodated in the pre-stuck cell list;

if the maximum number of cells that can be accommodated by the pre-stuck cell table has been reached, the cell with the largest value of the aging timer in the pre-stuck cell table is deleted from the pre-stuck cell table.

13. The cell ranking method of claim 12, further comprising, if the ue is not in a network stuck state:

judging whether the pre-stuck cell list is an empty list or not;

if the pre-stuck cell list is an empty list, re-executing the step of judging whether the application program runs in the foreground of the user equipment;

if the pre-stuck cell list is not an empty list, judging whether the current resident cell of the user equipment is in the pre-stuck cell list or not according to the cell information of the current resident cell of the user equipment; and if the current resident cell of the user equipment is not in the pre-stuck cell list, re-executing the step of judging whether the foreground of the user equipment runs the application program.

14. The cell ranking method of claim 13, further comprising:

if the current resident cell of the user equipment is in the pre-stuck cell table, judging whether a stuck recovery timer of the user equipment is started or not, wherein the stuck recovery timer is a timer used for indicating the duration of the user equipment which is continuously in a non-stuck state;

and if the user equipment does not have the started stuck recovery timer, setting the stuck recovery timer for the user equipment.

15. The cell ranking method of claim 14, further comprising:

if the pause recovery timer of the user equipment is started, judging whether the current resident cell of the user equipment and the cell when judging whether the foreground of the user equipment runs the application program are the same cell or not so as to determine whether the current resident cell of the user equipment is changed or not;

and if the current resident cell of the user equipment is changed, stopping the pause recovery timer, and re-executing the step of judging whether the foreground of the user equipment runs the application program.

16. The cell ranking method of claim 15, further comprising:

if the current resident cell of the user equipment is not changed, judging whether the numerical value of the stuck recovery timer is more than or equal to the threshold of the stuck recovery timer;

if the numerical value of the pause recovery timer is smaller than the threshold of the pause recovery timer, re-executing the step of judging whether the foreground of the user equipment runs the application program;

and if the numerical value of the pause recovery timer is more than or equal to the threshold of the pause recovery timer, stopping the pause recovery timer, deleting the current resident cell of the user equipment from the pre-pause cell table, and re-executing the step of judging whether the foreground of the user equipment runs the application program.

17. The cell ranking method of claim 16, further comprising:

and if the application program is not operated by the user equipment foreground, stopping the pause timer and the pause recovery timer, and re-executing the step of judging whether the application program is operated by the user equipment foreground.

18. An apparatus for cell ranking, comprising:

the cell searching unit is used for searching the cell to obtain a searching cell list;

a judging unit, configured to judge whether a stuck cell exists in the search cell table, where the stuck cell is a cell where the user equipment is stuck in a network after the user equipment resides;

a sorting unit, configured to, if there is a stuck cell in the search cell table, arrange the stuck cell at a tail of the search cell table according to a time sequence in which the stuck cell causes network sticking of the UE;

the step that the sorting unit is used for judging whether the card-dun cell exists in the search cell list comprises the following steps:

judging whether a stuck cell exists in a search cell list or not according to a stuck cell list, wherein the stuck cell list is obtained by screening a pre-stuck cell list, and the pre-stuck cell list comprises stuck cells which enable user equipment to be stuck by a network in the process of the user equipment staying in the cells historically;

the sorting unit is configured to filter the pre-stuck cell table, and the step of filtering the pre-stuck cell table includes:

acquiring a pre-stuck cell list;

judging whether a cell with an aging timer value which is more than or equal to an aging timer threshold exists in the pre-stuck cell table, wherein the aging timer is a timer which is set for a stuck cell when the stuck cell is added into the pre-stuck cell table;

deleting the cells with the aging timer value larger than or equal to the aging timer threshold from the pre-stuck cell list;

adding cells in the pre-stuck cell list to the stuck cell list;

the sorting unit is further configured to not change the sorting of the cells in the search cell table if no stuck cell exists in the search cell table.

19. A user device, comprising: a processor and a memory; the memory stores program instructions that, when executed by the processor, cause the user equipment to perform the method of any of claims 1-17.

20. A chip system, comprising: a memory and a processor; the memory stores program instructions that, when executed by the processor, cause the system-on-chip to perform the method of any of claims 1-17.

21. A computer-readable storage medium, having stored thereon program instructions, which, when run on a computer, cause the computer to perform the method of any one of claims 1-17.

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