CN115150912B

CN115150912B - Network connection method and terminal equipment

Info

Publication number: CN115150912B
Application number: CN202210771121.0A
Authority: CN
Inventors: 周佳
Original assignee: Hisense Mobile Communications Technology Co Ltd
Current assignee: Hisense Mobile Communications Technology Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2024-04-19
Anticipated expiration: 2042-06-30
Also published as: CN115150912A

Abstract

The application provides a network connection method, a network connection device, terminal equipment and a storage medium, which are used for guaranteeing high-quality development of services. According to the method, when the obtained candidate NR frequency point to be measured is the frequency point where the predetermined abnormal NR cell is located, whether the signal quality of the current resident NR cell meets the set requirement or not can be judged; if the signal quality of the current resident NR cell meets the set requirement, continuing to resident in the current resident NR cell; if the signal quality of the current resident NR cell does not meet the set requirement, searching the LTE network to be resident in the LTE cell, so that frequent ping-pong switching of the terminal equipment between the abnormal NR cell and the normal NR cell can be effectively avoided, the stability and the continuity of the service are ensured, and the high-quality development of the service is ensured.

Description

Network connection method and terminal equipment

Technical Field

The present application relates to the field of communications technologies, and in particular, to a network connection method, a device, a terminal device, and a storage medium.

Background

The fifth generation mobile communication network (5th generation mobile networks,5G) is the latest generation mobile communication technology, and compared with the early mobile communication technologies such as 4G, 3G, 2G, etc., 5G can provide higher data rate, lower delay, full connection of everything interconnection, more energy saving, lower cost, higher system capacity and large-scale equipment access.

However, the 5G network has some network configuration problems, which greatly affects the high-quality development of the services such as the data service and the voice service in the 5G network. For example, when a UE (User Equipment) resides in a New Radio Access (NR) cell a with normal 5G, if there is an abnormal NR cell B with better signal quality currently meeting the reporting condition, the base station may instruct the UE to switch to the NR cell B, and the UE fails in a Random Access channel (Random ACCESS CHANNEL, RACH) of the NR cell B, may reestablish connection with the cell a, and re-resides the cell a. The previous flow may be repeated, and the UE is caused to perform frequent ping-pong handover between the NR cell a and the NR cell B, which greatly affects the stability and continuity of the service, and affects the high quality development of the service.

Therefore, how to guarantee high quality development of service when there is an abnormal NR cell is a technical problem that needs to be solved at present.

Disclosure of Invention

The application provides a network connection method, a network connection device, terminal equipment and a storage medium, which are used for guaranteeing high-quality development of services.

In a first aspect, the present application provides a network connection method, the method comprising:

acquiring candidate new wireless access NR frequency points to be measured through a radio resource control RRC reconfiguration message;

If the candidate NR frequency point is the frequency point where the predetermined abnormal NR cell is located, judging whether the signal quality of the current resident NR cell meets the set requirement;

if the signal quality of the current resident NR cell meets the set requirement, continuing to resident in the current resident NR cell;

And if the signal quality of the current resident NR cell does not meet the set requirement, searching for a network under the LTE network.

In a second aspect, the present application provides a network connection device, the device comprising:

The acquisition module is used for acquiring candidate new wireless access NR frequency points to be measured through a Radio Resource Control (RRC) reconfiguration message;

the connection module is used for judging whether the signal quality of the current resident NR cell meets the set requirement or not if the candidate NR frequency point is the frequency point of the predetermined abnormal NR cell;

In a third aspect, the present application provides a terminal device comprising at least a processor and a memory, the processor being adapted to implement the steps of any of the network connection methods described above when executing a computer program stored in the memory.

In a fourth aspect, the present application provides a computer readable storage medium storing a computer program which when executed by a processor performs the steps of a network connection method as described in any one of the above.

According to the method, when the obtained candidate NR frequency point to be measured is the frequency point where the predetermined abnormal NR cell is located, whether the signal quality of the current resident NR cell meets the set requirement or not can be judged; if the signal quality of the current resident NR cell meets the set requirement, continuing to resident in the current resident NR cell; if the signal quality of the current resident NR cell does not meet the set requirement, searching the LTE network to be resident in the LTE cell, so that frequent ping-pong switching of the terminal equipment between the abnormal NR cell and the normal NR cell can be effectively avoided, the stability and the continuity of the service are ensured, and the high-quality development of the service is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present application or the implementation of the related art, the drawings that are required for the embodiments or the related art description will be briefly described, and it is apparent that the drawings in the following description are some embodiments of the present application and that other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

Fig. 1 illustrates a schematic structural diagram of a terminal device 100 provided in some embodiments;

fig. 2 shows a software architecture block diagram of a terminal device 100 provided in some embodiments;

FIG. 3 illustrates a first network connection process schematic provided by some embodiments;

FIG. 4 illustrates a schematic diagram of one process for determining an abnormal NR cell provided by some embodiments;

FIG. 5 illustrates a second network connection process schematic provided by some embodiments;

FIG. 6 illustrates a third network connection process schematic provided by some embodiments;

FIG. 7 illustrates a fourth network connection process schematic provided by some embodiments;

FIG. 8 illustrates a fifth network connection process schematic provided by some embodiments;

FIG. 9 illustrates a sixth network connection process schematic provided by some embodiments;

FIG. 10 illustrates a seventh network connection process schematic provided by some embodiments;

FIG. 11 illustrates an eighth network connection process schematic provided by some embodiments;

FIG. 12 illustrates a ninth network connection process schematic provided by some embodiments;

FIG. 13 illustrates a tenth network connection process schematic provided by some embodiments;

FIG. 14 illustrates a network connection device schematic diagram provided by some embodiments;

fig. 15 illustrates a schematic structure of a terminal device according to some embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terms first, second and the like in the description and in the claims and in the above-described figures, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be capable of operation in sequences other than those illustrated or otherwise described.

The following briefly describes the design concept of the embodiment of the present application:

The 5G network has some network configuration problems, and the high-quality development of data services, voice services and other services under the 5G network is greatly influenced. For example, when a UE (User Equipment) resides in a New Radio Access (NR) cell a with normal 5G, if there is an abnormal NR cell B with better signal quality currently meeting the reporting condition, the base station may instruct the UE to switch to the NR cell B, and the UE fails in a Random Access channel (Random ACCESS CHANNEL, RACH) of the NR cell B, may reestablish connection with the cell a, and re-resides the cell a. The previous flow may be repeated, and the UE is caused to perform frequent ping-pong handover between the NR cell a and the NR cell B, which greatly affects the stability and continuity of the service, and affects the high quality development of the service.

In view of the above, in order to solve the technical problem that in the related art, when an abnormal NR cell exists, the high quality development of the service is affected, the embodiments of the present application provide a network connection method, apparatus, terminal device and storage medium. The method can judge whether the signal quality of the current resident NR cell meets the set requirement when the obtained candidate NR frequency point to be measured is the frequency point of the predetermined abnormal NR cell; if the signal quality of the current resident NR cell meets the set requirement, continuing to resident in the current resident NR cell; if the signal quality of the current resident NR cell does not meet the set requirement, searching the LTE network to be resident in the LTE cell, so that frequent ping-pong switching of the terminal equipment between the abnormal NR cell and the normal NR cell can be effectively avoided, the stability and the continuity of the service are ensured, and the high-quality development of the service is ensured.

In a possible implementation, fig. 1 shows a schematic structural diagram of a terminal device 100 provided in some embodiments. It should be understood that the terminal device 100 shown in fig. 1 is only one example, and that the terminal device 100 may have more or fewer components than shown in fig. 1, may combine two or more components, or may have a different configuration of components. The various components shown in the figures may be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits.

A hardware configuration block diagram of the terminal device 100 in accordance with an exemplary embodiment is exemplarily shown in fig. 1. As shown in fig. 1, the terminal device 100 includes: radio Frequency (RF) circuitry 110, memory 120, display unit 130, camera 140, sensor 150, audio circuitry 160, wireless fidelity (WIRELESS FIDELITY, wi-Fi) module 170, processor 180, bluetooth module 181, and power supply 190.

The RF circuit 110 may be used for receiving and transmitting signals during the process of receiving and transmitting information or communication, and may receive downlink data of the base station and then transmit the downlink data to the processor 180 for processing; uplink data may be sent to the base station. Typically, RF circuitry includes, but is not limited to, antennas, at least one amplifier, transceivers, couplers, low noise amplifiers, diplexers, and the like.

Memory 120 may be used to store software programs and data. The processor 180 performs various functions of the terminal device 100 and data processing by running software programs or data stored in the memory 120. Memory 120 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device. The memory 120 stores an operating system that enables the terminal device 100 to operate. The memory 120 of the present application may store an operating system and various application programs, and may also store program codes for performing the network connection method of the embodiment of the present application.

The display unit 130 may be used to receive input digital or character information, generate signal inputs related to user settings and function control of the terminal device 100, and in particular, the display unit 130 may include a touch screen 131 provided at the front surface of the terminal device 100, and may collect touch operations on or near the user, such as clicking a button.

The display unit 130 may also be used to display information input by a user or information provided to the user and a graphical user interface (GRAPHICAL USER INTERFACE, GUI) of various menus of the terminal device 100. Specifically, the display unit 130 may include a display 132 provided on the front surface of the terminal device 100. The display 132 may be configured in the form of a liquid crystal display, light emitting diodes, or the like. The display unit 130 may be used to display a display area of a display screen of the terminal in the present application.

The touch screen 131 may cover the display screen 132, or the touch screen 131 and the display screen 132 may be integrated to implement the input and output functions of the terminal device 100, and after integration, the touch screen may be simply referred to as a touch display screen. The display unit 130 may display the application program and the corresponding operation steps in the present application.

The camera 140 may be used to capture still images or video. The object generates an optical image through the lens and projects the optical image onto the photosensitive element. The photosensitive element may be a charge coupled device (charge coupled device, CCD) or a Complementary Metal Oxide Semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, which is then transferred to the processor 180 for conversion into a digital image signal.

The terminal device 100 may further comprise at least one sensor 150, such as an acceleration sensor 151, a distance sensor 152, a fingerprint sensor 153, a temperature sensor 154. The terminal device 100 may also be configured with other sensors such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, light sensors, motion sensors, and the like.

Audio circuitry 160, speaker 161, microphone 162 may provide an audio interface between the user and terminal device 100. The audio circuit 160 may transmit the received electrical signal converted from audio data to the speaker 161, and the speaker 161 converts the electrical signal into a sound signal and outputs the sound signal. The terminal device 100 may also be provided with a volume button for adjusting the volume of the sound signal, and may also be used for combining other buttons to adjust the enclosed area. On the other hand, the microphone 162 converts the collected sound signal into an electrical signal, which is received by the audio circuit 160 and converted into audio data, which is output to the RF circuit 110 for transmission to, for example, another terminal, or to the memory 120 for further processing.

Wi-Fi belongs to a short-range wireless transmission technology, and the terminal device 100 can help a user to send and receive e-mail, browse web pages, access streaming media and the like through the Wi-Fi module 170, so that wireless broadband internet access is provided for the user.

The processor 180 is a control center of the terminal device 100, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal device 100 and processes data by running or executing software programs stored in the memory 120 and calling data stored in the memory 120. In some embodiments, the processor 180 may include one or more processing units; the processor 180 may also integrate an application processor that primarily handles operating systems, user interfaces, applications, etc., and a baseband processor that primarily handles wireless communications. It will be appreciated that the baseband processor described above may not be integrated into the processor 180. The processor 180 of the present application may run an operating system, an application program, a user interface display and a touch response, and a network connection method according to an embodiment of the present application. In addition, the processor 180 is coupled with the display unit 130.

The bluetooth module 181 is configured to perform information interaction with other bluetooth devices having a bluetooth module through a bluetooth protocol. For example, the terminal device 100 may establish a bluetooth connection with a wearable terminal device (e.g., a smartwatch) also provided with a bluetooth module through the bluetooth module 181, thereby performing data interaction.

The terminal device 100 also includes a power supply 190 (e.g., a battery) that provides power to the various components. The power supply may be logically connected to the processor 180 through a power management system, so that functions of managing charge, discharge, power consumption, etc. are implemented through the power management system. The terminal device 100 may also be configured with a power button for powering on and off the terminal device, and for locking the screen.

Fig. 2 shows a software architecture block diagram of a terminal device 100 provided in some embodiments.

The layered architecture divides the software into several layers, each with distinct roles and branches. The layers communicate with each other through a software interface. In some embodiments, the Android system may be divided into four layers, from top to bottom, an application layer, an application framework layer, an Zhuoyun rows (Android runtime) and system libraries, and a kernel layer, respectively.

The application layer may include a series of application packages.

As shown in fig. 2, the application package may include applications such as phone, multimedia message, wi-Fi, weChat, information, alarm clock, gallery, calendar, WLAN, etc.

The application framework layer provides an application programming interface (application programming interface, API) and programming framework for the application of the application layer. The application framework layer includes a number of predefined functions.

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

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

The content provider is used to store and retrieve data and make such data accessible to applications. The data may include video, images, audio, telephone calls made and received, browsing history and bookmarks, phonebooks, short messages, 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 screen may be composed of one or more views. For example, a display screen including a short message notification icon may include a view displaying text and a view displaying a picture.

The telephony manager is used to provide the communication functions of the terminal device 100. Such as the management of call status (including on, hung-up, etc.).

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

The notification manager allows the application to display notification information (e.g., the message content of a short message) in a status bar, can be used to communicate notification type messages, can automatically disappear after a short dwell, and does not require user interaction. Such as notification manager is used to inform that the download is complete, message alerts, etc. The notification manager may also be a notification presented in the form of a chart or scroll bar text in the system top status bar, such as a notification of a background running application, or a notification presented in the form of a dialog window on a display screen. For example, a text message is prompted in a status bar, a prompt tone is emitted, the terminal vibrates, and an indicator light blinks.

Android run time includes a core library and virtual machines. Android runtime is responsible for scheduling and management of the android system.

The core library consists of 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. The virtual machine executes java files of the application program layer and the application program framework layer as binary files. The virtual machine is used for executing the functions of object life cycle management, stack management, thread management, security and exception management, garbage collection and the like.

The system library may include a plurality of functional modules. For example: surface manager (surface manager), media Libraries (Media Libraries), three-dimensional graphics processing Libraries (e.g., openGL ES), 2D graphics engines (e.g., SGL), etc.

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

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

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

A 2D (one way of animation) 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 terminal device 100 in the embodiment of the present application may be a terminal device including, but not limited to, a smart phone, a tablet computer, a wearable terminal device (e.g., a smart watch), a notebook computer, and the like.

In the embodiment of the present application, the terminal device shown in fig. 1 or fig. 2 may obtain a candidate new radio access (NR) frequency point to be measured through a radio resource control (Radio Resource Control, abbreviated as RRC) reconfiguration (RRC Reconfiguration) message; if the candidate NR frequency point is the frequency point where the predetermined abnormal NR cell is located, judging whether the signal quality of the current resident NR cell meets the set requirement or not; if the signal quality of the current resident NR cell meets the set requirement, continuing to resident in the current resident NR cell; if the signal quality of the current resident NR cell does not meet the set requirement, searching for a network under a long term evolution (Long Term Evolution, abbreviated as LTE) network to reside in the LTE cell.

In one possible implementation manner, in order to ensure high quality of service development when an abnormal NR cell exists, the present application provides a network connection method, apparatus, terminal device, and storage medium. Fig. 3 is a schematic diagram of a first network connection procedure provided in some embodiments, as shown in fig. 3, and including the following steps:

s301: and acquiring the candidate NR frequency points to be measured through the RRC reconfiguration message.

The network connection method provided by the embodiment of the application is suitable for the terminal equipment, and the terminal equipment can be the terminal equipment shown in fig. 1 or fig. 2.

In a possible implementation manner, the terminal device may obtain the candidate new radio access (NR) frequency points to be measured through an RRC reconfiguration message (for convenience of description, the obtained NR frequency points to be measured are referred to as candidate NR frequency points) where an existing RRC reconfiguration message may be used to obtain the candidate NR frequency points to be measured, which will not be described herein.

S302: if the candidate NR frequency point is the frequency point where the predetermined abnormal NR cell is located, judging whether the signal quality of the current resident NR cell meets the set requirement; if yes, go to S303; if not, S304 is performed.

In the related art, for example, when a terminal device (UE) resides in a normal NR cell a, if there is an abnormal NR cell B with better signal quality currently satisfying a reporting condition, a base station may instruct the UE to switch to the NR cell B, but the UE fails when accessing the NR cell B, i.e., RACH failure, and for convenience of description, the RACH failure at this time is referred to as a first RACH failure; the UE may reestablish a connection with cell a and camp on cell a again. The abnormal NR cell B may repeatedly occur to meet the reporting condition, and the base station instructs the UE to switch to the NR cell B, but the UE fails when accessing to the NR cell B, i.e., the RACH failure is referred to as a continuous RACH failure twice for convenience of description. By analogy, the situation that continuous RACH fails three times and … … continuous RACH fails N times can occur, namely frequent table tennis switching occurs, so that the stability and continuity of the service are greatly influenced, and the high-quality development of the service is influenced.

In a possible implementation manner, in order to avoid frequent table tennis switching and ensure high quality development of service, it may be determined whether the number of continuous RACH failures of the terminal device in any NR cell reaches a set number threshold, and if so, the NR cell may be determined as an abnormal NR cell. For ease of understanding, the steps illustrated in fig. 4 may be employed to determine an abnormal NR cell, and fig. 4 illustrates a schematic diagram of a process for determining an abnormal NR cell provided by some embodiments, the process including the steps of:

S401: judging whether the number of continuous RACH failures of the terminal equipment in any NR cell reaches a set number threshold, if so, performing S402; if not, the process proceeds to S403.

S402: the NR cell is determined to be an abnormal NR cell.

S403: the NR cell is determined to be a normal NR cell.

The set number threshold may be flexibly set according to the requirement, which is not limited in particular by the present application, and when the set number threshold is 2, and the terminal device fails to perform continuous RACH twice in a certain NR cell, the NR cell may be determined as an abnormal NR cell.

In a possible implementation manner, if the obtained candidate NR frequency point to be measured is the frequency point where the predetermined abnormal NR cell is located, that is, only the frequency point where the predetermined abnormal NR cell is located is configured, if the operation of switching to (accessing) the abnormal NR cell is performed, the situation that the continuous RACH of the abnormal NR cell fails, and frequent table tennis switching may occur immediately. In order to ensure high quality development of service, when the terminal equipment identifies that the candidate NR frequency point is the frequency point of the predetermined abnormal NR cell, the terminal equipment can then judge whether the signal quality of the current resident NR cell meets the set requirement, and flexibly select the accessed (resident) cell according to the judging result of whether the signal quality of the current resident NR cell meets the set requirement, thereby ensuring high quality development of service. When determining whether the signal Quality of the currently camping NR cell meets the set requirement, it may be determined whether the reference signal received Power (REFERENCE SIGNAL RECEIVING Power, RSRP) of the currently camping NR cell is not less than a first set threshold (denoted by T1 for convenience of description) and whether the LTE reference signal received Quality (REFERENCE SIGNAL RECEIVING Quality, RSRQ) is not less than a second set threshold (denoted by T2 for convenience of description), if the RSRP is not less than T1 and the RSRQ is not less than T2, the signal Quality of the currently camping NR cell may be considered to meet the set requirement, otherwise, the signal Quality of the currently camping NR cell may be considered to not meet the set requirement.

S303: and if the signal quality of the current resident NR cell meets the set requirement, continuing to resident in the current resident NR cell.

In one possible implementation, if the signal quality of the currently camping NR cell meets the set requirement, the signal quality of the currently camping NR cell may be considered to be better, and the requirement of high quality development of the service may be met, then camping on the currently camping NR cell may be continued.

S304: and if the signal quality of the current resident NR cell does not meet the set requirement, searching the network under the LTE network.

In a possible implementation manner, if the signal quality of the current camping NR cell does not meet the set requirement, the signal quality of the current camping NR cell may be considered to be not good, and may not meet the requirement of high quality development of the service, in order to avoid the table tennis handover and ensure the high quality development of the service, optionally, the terminal device (UE) may first close the 5G network, open the LTE network, that is, open the 4G network, and search for the network under the LTE network, and the terminal device may measure the LTE cells in the 4G network around the terminal device, and may select an LTE cell with better signal quality from the measured LTE cells, and camp on the LTE cell, thereby ensuring the high quality development of the service.

According to the method, when the obtained candidate NR frequency point to be measured is the frequency point where the predetermined abnormal NR cell is located, whether the signal quality of the current resident NR cell meets the set requirement or not can be judged; if the signal quality of the current resident NR cell meets the set requirement, continuing to resident in the current resident NR cell; if the signal quality of the current resident NR cell does not meet the set requirement, searching the LTE network to be resident in the LTE cell, so that frequent ping-pong switching of the terminal equipment between normal NR cells such as an abnormal NR cell and the current resident NR cell can be effectively avoided, the stability and the continuity of the service are ensured, and the high-quality development of the service is ensured.

In a possible implementation manner, in order to avoid frequent table tennis handover, when the candidate NR frequency point to be measured is the frequency point where the abnormal NR cell is located, access to the abnormal NR cell, that is, the bar drop abnormal NR cell, may be prohibited for a certain period of time. Specifically, referring to fig. 5, fig. 5 shows a schematic diagram of a second network connection procedure provided in some embodiments, where the procedure includes the following steps:

s501: and acquiring the candidate NR frequency points to be measured through the RRC reconfiguration message.

S502: if the candidate NR frequency point is the frequency point where the predetermined abnormal NR cell is located, judging whether the signal quality of the current resident NR cell meets the set requirement; if yes, go to S503; if not, S505 is performed.

S503: if the signal quality of the currently camping NR cell meets the set requirement, camping on the currently camping NR cell is continued, and S504 is performed.

S504: if the current resident NR cell is continued to be resident, acquiring the current stored exception processing set duration; and prohibiting access to the abnormal NR cell within the set time length of the abnormal processing.

The application does not limit the set time length of the exception handling, and can be flexibly set according to the requirement. By way of example, it may be 3 minutes (min), 5min, 30min, 1 hour, etc. And in the set abnormal processing time, the access to the abnormal NR cell is forbidden, namely the abnormal NR cell bar is dropped for the set abnormal processing time. For example, if the current stored exception handling set time is 3min, the exception cell is dropped for 3min.

S505: if the signal quality of the current resident NR cell does not meet the set requirement, searching the network under the LTE network.

In one possible implementation manner, considering that the abnormal NR cell may return to normal when the set duration is reached, in order to increase flexibility of network connection, optionally, when the set duration is reached in the abnormal processing, if a handover instruction sent by the base station to handover to the abnormal NR cell is received, the abnormal NR cell may be accessed. Specifically, referring to fig. 6, fig. 6 shows a schematic diagram of a third network connection procedure provided in some embodiments, where the procedure includes the following steps:

S601: and acquiring the candidate NR frequency points to be measured through the RRC reconfiguration message.

S602: if the candidate NR frequency point is the frequency point where the predetermined abnormal NR cell is located, judging whether the signal quality of the current resident NR cell meets the set requirement or not; if yes, S603 is performed.

S603: and if the signal quality of the current resident NR cell meets the set requirement, continuing to resident in the current resident NR cell.

S604: acquiring the current stored exception handling set time length; and prohibiting access to the abnormal NR cell within the set time length of the abnormal processing.

S605: and when the set time length of the abnormal processing is reached, if a switching instruction of switching to the abnormal NR cell sent by the base station is received, accessing the abnormal NR cell.

In a possible implementation manner, when executing step S605, if accessing the abnormal NR cell fails, it may be considered that the abnormal NR cell has not recovered, in order to ensure stability and continuity of the service, ensure high quality development of the service, and may continue to reside in the currently resident NR cell, and in addition, in order to further avoid frequent table tennis handover, the abnormal processing setting duration may be prolonged according to the currently stored abnormal processing setting duration; and forbidding to access the abnormal NR cell within the prolonged set time length of the abnormal processing. The application does not limit the prolonged set time length, and can be flexibly set according to the requirement. Specifically, referring to fig. 7, fig. 7 shows a schematic diagram of a fourth network connection procedure provided in some embodiments, the procedure includes the following steps:

S701: and acquiring the candidate NR frequency points to be measured through the RRC reconfiguration message.

S702: if the candidate NR frequency point is the frequency point where the predetermined abnormal NR cell is located, judging whether the signal quality of the current resident NR cell meets the set requirement or not; if yes, S703 is performed.

S703: if the signal quality of the current resident NR cell meets the set requirement, continuing to resident in the current resident NR cell.

S704: acquiring the current stored exception handling set time length; and prohibiting access to the abnormal NR cell within the set time length of the abnormal processing.

S705: when the set time length of the abnormal processing is reached, if a switching instruction sent by the base station to switch to the abnormal NR cell is received, accessing to the abnormal NR cell; if access to the abnormal NR cell fails, S706 is performed.

It can be appreciated that if the access to the abnormal NR cell is successful, the handover is to the abnormal NR cell.

S706: continuously residing in the current residing NR cell, and prolonging the set time length of the exception handling according to the set time length of the exception handling stored currently; and prohibiting access to the abnormal NR cell within the prolonged abnormal processing set time.

It can be understood that when the extended set period of time for exception handling is reached, if a handover instruction sent by the base station to switch to the exception NR cell is received, the exception NR cell can be accessed again; if the access to the abnormal NR cell again fails, the resident NR cell can be continued, and the current stored abnormal processing set time length is prolonged again according to the current stored abnormal processing set time length; and prohibiting access to the abnormal NR cell within the abnormal processing set time after the re-extension.

In a possible implementation manner, considering that the duration of the continuous service development of the user based on the terminal device is also usually limited, in order to increase the flexibility of network connection, before the set duration of the exception handling is prolonged (prolonged again), it may also be determined whether the number of continuous prolonged times for the exception NR cell reaches the set number threshold; if the set number of times threshold is not reached, a step of prolonging the set time length of the exception handling can be performed; if the number of times of continuous extension for the abnormal NR cell has reached the set number of times threshold, the set duration of the abnormal processing may be cleared, and the abnormal NR cell may be updated to a normal NR cell.

For ease of understanding, the specific process of network connection provided by the present application is illustrated below by taking the threshold of 4 times as an example. Referring to fig. 8, fig. 8 illustrates a fifth network connection process provided by some embodiments, the process comprising the steps of:

S801: and acquiring the candidate NR frequency points to be measured through the RRC reconfiguration message.

S802: if the candidate NR frequency point is the frequency point where the predetermined abnormal NR cell B is located, judging whether the signal quality of the current resident NR cell A meets the set requirement or not; if yes, S803 is performed.

S803: if the signal quality of the current resident NR cell A meets the set requirement, continuing to resident in the current resident NR cell A.

S804: obtaining the current stored exception handling set time length, and if the current stored exception handling set time length is 3min, prohibiting access to an exception NR cell B within 3min, namely dropping the exception NR cell B bar for 3min.

S805: when the time reaches 3min, if a switching instruction sent by the base station for switching to the abnormal NR cell B is received, accessing the abnormal NR cell B; if the access to the abnormal NR cell B fails, S806 is performed.

S806: and continuing to reside in the current resident NR cell A, prolonging the abnormal processing set time according to the current stored abnormal processing set time for 3min, and if the prolonged abnormal processing set time is 5min, prohibiting access to the abnormal NR cell B, namely dropping the abnormal NR cell B bar for 5min in the prolonged abnormal processing set time.

Here, the number of consecutive extensions to the abnormal NR cell B at this time is 2.

S807: when 5 minutes is reached, if a handover instruction to the abnormal NR cell B sent by the base station is received, the abnormal NR cell B is accessed, and if the access to the abnormal NR cell B fails, S808 is executed.

S808: and continuing to reside in the current resident NR cell A, prolonging the abnormal processing set time according to the current stored abnormal processing set time for 5min, and if the prolonged abnormal processing set time is 30min, prohibiting access to the abnormal NR cell B, namely dropping the abnormal NR cell B bar for 30min in the prolonged abnormal processing set time.

Here, the number of consecutive extensions to the abnormal NR cell B at this time is 3.

S809: when 30min is reached, if a handover instruction to the abnormal NR cell B sent by the base station is received, the abnormal NR cell B is accessed, and if the access to the abnormal NR cell B fails, S810 is executed.

S810: if the time length of the normal NR cell is extended again, the time length of the normal NR cell is continuously extended to the time length threshold value, so that the time length of the normal NR cell is not extended, the time length of the normal NR cell is reset, and the time length of the normal NR cell is updated.

After updating the abnormal NR cell B to the normal NR cell, the terminal device may perform normal measurement, reporting, access, and other related matters on the NR cell B, which are not described herein.

In one possible implementation manner, if the signal quality of the current camping NR cell does not meet the set requirement, the 5G network is turned off, after searching for a network under the 4G network (LTE network), in order to avoid frequent table tennis handover, the current stored set duration of abnormal processing may be acquired, and within the set duration of abnormal processing, the 5G network is turned off, that is, the 5G network is prohibited from being used (NR disable). Specifically, referring to fig. 9, fig. 9 shows a schematic diagram of a sixth network connection procedure provided in some embodiments, where the procedure includes the following steps:

s901: and acquiring the candidate NR frequency points to be measured through the RRC reconfiguration message.

S902: if the candidate NR frequency point is the frequency point where the predetermined abnormal NR cell is located, judging whether the signal quality of the current resident NR cell meets the set requirement or not; if not, the process proceeds to S903.

S903: if the signal quality of the current resident NR cell does not meet the set requirement, searching the network under the LTE network.

S904: acquiring the current stored exception handling set time length; and closing the 5G network within the set time length of the exception handling.

The present application does not limit the current set time length for exception handling, and can be flexibly set according to requirements. For example, the exception handling setup period may be 3min, 5min, 30min, 1 hour, etc. And closing the 5G network within the set time length of the exception handling. For example, if the current stored exception handling set time is 3min, the 5G network is turned off for 3min.

In one possible implementation manner, considering that the abnormal NR cells may return to normal when the set period of abnormal processing is reached, in order to increase flexibility of network connection, optionally, when the set period of abnormal processing is reached, the 5G network may be opened, the NR cells in the 5G network are searched again, and the accessed NR cells are determined based on the signal quality of the searched NR cells. Specifically, referring to fig. 10, fig. 10 shows a schematic diagram of a seventh network connection procedure provided in some embodiments, where the procedure includes the following steps:

s1001: and acquiring the candidate NR frequency points to be measured through the RRC reconfiguration message.

S1002: if the candidate NR frequency point is the frequency point where the predetermined abnormal NR cell is located, judging whether the signal quality of the current resident NR cell meets the set requirement or not; if not, S1003 is performed.

S1003: if the signal quality of the current resident NR cell does not meet the set requirement, searching the network under the LTE network.

S1004: acquiring the current stored exception handling set time length; and closing the 5G network within the set time length of the exception handling.

S1005: when the set time length of the exception handling is reached, a 5G network is opened, and NR cells are searched again; and determining the accessed NR cell based on the signal quality of the searched NR cell.

In a possible implementation manner, if after the 5G network is camped on and when the abnormal NR cell access fails again, in order to ensure high quality development of the service, the method may continue to the LTE network to search for networks and camp on the LTE cell when the step S1005 is performed; and according to the current stored exception handling set time length, prolonging the exception handling set time length; and closing the 5G network within the prolonged exception handling set time. The application does not limit the prolonged setting time of the exception handling, and can be flexibly set according to the requirements. Referring to fig. 11, fig. 11 illustrates an eighth network connection process provided by some embodiments, the process including the steps of:

S1101: and acquiring the candidate NR frequency points to be measured through the RRC reconfiguration message.

S1102: if the candidate NR frequency point is the frequency point where the predetermined abnormal NR cell is located, judging whether the signal quality of the current resident NR cell meets the set requirement or not; if not, the process proceeds to S1103.

S1103: if the signal quality of the current resident NR cell does not meet the set requirement, searching the network under the LTE network.

S1104: acquiring the current stored exception handling set time length; and closing the 5G network within the set time length of the exception handling.

S1105: when the set time length of the exception handling is reached, a 5G network is opened, and NR cells are searched again; and determining the accessed NR cell based on the signal quality of the searched NR cell.

S1106: if the network is resided in the 5G network and the access fails in the abnormal NR cell again, continuing to search for the network under the LTE network; according to the current stored exception handling set time length, prolonging the exception handling set time length; and closing the 5G network within the prolonged exception handling set time.

It can be appreciated that if the access to the NR cell is successful, the access to the NR cell uses the 5G network to perform the service.

It can be appreciated that when the extended set period of exception handling is reached, the 5G network may be opened again, the NR cells in the 5G network may be searched again, and the accessed NR cells may be determined based on the signal quality of the searched NR cells. If the network is resided in the 5G network and the access fails in the abnormal NR cell again, the network searching can be continued under the LTE network; and according to the current stored exception handling set time length, prolonging the exception handling set time length again, and closing the 5G network within the exception handling set time length after the extension again.

In a possible implementation manner, considering that the duration of the continuous service development of the user based on the terminal device is also usually limited, in order to increase the flexibility of the network connection, before the set duration is prolonged (prolonged again), it may also be determined whether the number of continuous prolonged times for the abnormal NR cell reaches the set number threshold; if the set time threshold is not reached, the step of prolonging the set time length can be performed; if the number of times of continuous extension for the abnormal NR cell has reached the set number of times threshold, the set duration of the abnormal processing may be cleared, and the abnormal NR cell may be updated to a normal NR cell.

For ease of understanding, the specific process of network connection provided by the present application will be illustrated below by taking the threshold of 4 times as an example. Referring to fig. 12, fig. 12 is a schematic diagram illustrating a ninth network connection procedure according to some embodiments, the procedure includes the following steps:

s1201: and acquiring the candidate NR frequency points to be measured through the RRC reconfiguration message.

S1202: if the candidate NR frequency point is the frequency point where the predetermined abnormal NR cell B is located, judging whether the signal quality of the current resident NR cell A meets the set requirement or not; if not, S1203 is performed.

S1203: if the signal quality of the current resident NR cell A does not meet the set requirement, searching the network under the LTE network.

S1204: and obtaining the current stored exception handling set time length, and closing the 5G network for 3min under the assumption that the current stored exception handling set time length is 3min.

S1205: when the time reaches 3min, a 5G network is opened, and NR cells are searched again; and determining the accessed NR cell based on the signal quality of the searched NR cell.

S1206: if camping on the 5G network and access fails again in the abnormal NR cell B, S1207 is performed.

S1207: continuing to search for networks under the LTE network; and according to the current stored abnormality processing set time length of 3min, the abnormality processing set time length is prolonged, and if the abnormality processing set time length is prolonged to be 5min, the 5G network is closed within the prolonged abnormality processing set time length, namely the 5G network is closed for 5min.

S1208: when 5min is reached, a 5G network is opened, and NR cells are searched again; based on the signal quality of the searched NR cell, an accessed NR cell is determined, and if the access to the 5G network is resident and the access fails again in the abnormal NR cell B, S1209 is executed.

S1209: continuing to search for networks under the LTE network; and according to the current stored abnormality processing set time length of 5min, the abnormality processing set time length is prolonged, if the abnormality processing set time length is prolonged to be 30min, the 5G network is closed within the prolonged abnormality processing set time length, namely the 5G network is closed for 30min.

S1210: when 30min is reached, a 5G network is opened, and NR cells are searched again; based on the signal quality of the searched NR cell, an accessed NR cell is determined, and if it is camped on the 5G network and access fails in the abnormal NR cell B again, S1211 is executed.

S1211: continuing to search for the network under the LTE network, if the set duration of the abnormal processing is extended again, the number of times of continuous extension of the set duration of the abnormal processing reaches the set number of times threshold, so that the set duration of the abnormal processing can be cleared without being extended any more, and optionally, a 5G network can be opened, NR cells can be searched again, and the abnormal NR cell B can be updated to be a normal NR cell.

In a possible implementation manner, if the candidate NR frequency points to be measured include other frequency points except the frequency point where the abnormal NR cell is located, in order to avoid frequent table tennis switching, measurement on the frequency point where the abnormal NR cell is located may be directly ignored, and optionally, other frequency points except the frequency point where the abnormal NR cell B is located in the candidate NR frequency points may be measured, where related matters such as measurement on other frequency points may be performed by using the prior art, and are not described herein. For ease of understanding, referring to fig. 13, fig. 13 shows a schematic diagram of a tenth network connection process provided by some embodiments, the process comprising the steps of:

s1301: and acquiring the candidate NR frequency points to be measured through the RRC reconfiguration message.

S1302: if the candidate NR frequency points comprise other frequency points except the frequency point where the abnormal NR cell B is located, neglecting measurement of the frequency point where the abnormal NR cell B is located; and measuring other frequency points except the frequency point where the abnormal NR cell B is located in the candidate NR frequency points.

In one possible implementation manner, the terminal device may acquire a distance between itself and the abnormal NR cell according to a set time interval; if the distance exceeds the set distance threshold, it may be considered that the terminal device may not be already in the signal coverage of the abnormal NR cell, and the abnormal NR cell may be updated to a normal NR cell, and the related processing for the abnormal NR cell in the above embodiment is stopped. The set distance threshold can be flexibly set according to requirements, and the application is not particularly limited to the set distance threshold. By way of example, the set distance threshold may be 1 km, etc.

For example, assuming that in the step S1302 in the foregoing embodiment, if the candidate NR frequency points include other frequency points except the frequency point where the abnormal NR cell B is located, the measurement of the frequency point where the abnormal NR cell B is located is ignored, if it is identified that the distance between the terminal device itself and the abnormal NR cell B has exceeded the set distance threshold, the abnormal NR cell B may be immediately updated to a normal NR cell, and the execution process of S1302 is terminated, for example, then according to the normal processing procedure in the prior art, through the RRC reconfiguration message, the candidate NR frequency point to be measured pushed by the base station is obtained, and related matters such as measurement of the candidate NR frequency point are not repeated herein.

Further exemplary, assume that S1209 "in the above embodiment continues to search for networks under the LTE network; and according to the current stored abnormal processing set time length of 5min, the abnormal processing set time length is prolonged, if the prolonged abnormal processing set time length is assumed to be 30min, then in the prolonged abnormal processing set time length, the 5G network is closed, namely, the execution period of the 5G network is closed for 30min ", when the execution period does not reach 30min, if the distance between the terminal equipment and the abnormal NR cell is recognized to be over the set distance threshold, the abnormal NR cell can be immediately updated into a normal NR cell, the execution process of S1209 is terminated, the 5G network can be immediately opened, and the NR cell is accessed based on the normal re-search NR cell processing flow in the prior art, and the details are not repeated.

Similarly, for another example, assuming that S808 "in the above embodiment continues to reside in the currently resident NR cell a, and extends the set period of time for exception handling according to the currently stored set period of time for exception handling by 5min, if the extended set period of time for exception handling is extended by 30min, then during execution of the extended set period of time for exception handling by 30min, that is, the exception NR cell B bar is prohibited from accessing to the exception NR cell B, when it is not yet reached for 30min, if it is recognized that the distance between the terminal device itself and the exception NR cell has exceeded the set distance threshold, then the exception NR cell B may be immediately updated to a normal NR cell, and the execution of S808 may be terminated, for example, then, according to a normal processing procedure in the prior art, for example, through an RRC reconfiguration message, a candidate NR frequency point to be measured may be obtained, which will not be described herein.

Based on the same technical concept, the present application provides a network connection device, referring to fig. 14, fig. 14 shows a schematic diagram of a network connection device provided in some embodiments, where the device includes:

An obtaining module 141, configured to obtain a candidate new radio access NR frequency point to be measured through a radio resource control RRC reconfiguration message;

A connection module 142, configured to determine whether the signal quality of the current camping NR cell meets a set requirement if the candidate NR frequency point is a frequency point where a predetermined abnormal NR cell is located;

In a possible implementation manner, the connection module 142 is further configured to obtain a currently stored exception handling setting duration if the current camping NR cell continues to camp on; and prohibiting access to the abnormal NR cell within the set abnormal processing time.

In a possible implementation manner, the connection module 142 is further configured to, when the set duration of the exception handling is reached, access the abnormal NR cell if a handover instruction sent by the base station to handover to the abnormal NR cell is received.

In a possible implementation manner, the connection module 142 is further configured to, if the access to the abnormal NR cell fails, continue to camp on the currently camping NR cell, and extend the set duration of the abnormal processing according to the set duration of the abnormal processing currently stored;

And prohibiting access to the abnormal NR cell within the prolonged set time period of the abnormal processing.

In a possible implementation manner, the connection module 142 is further configured to obtain a current stored exception handling setting duration if searching for a network under the LTE network;

and closing the 5G network within the set time length of the exception handling.

In a possible implementation manner, the connection module 142 is further configured to open a 5G network to re-search for an NR cell when the set duration of exception handling is reached;

and determining the accessed NR cell based on the signal quality of the searched NR cell.

In a possible implementation manner, the connection module 142 is further configured to, if the network is camping on the 5G network and the access fails in the abnormal NR cell again, continue to search for networks under the LTE network; and prolonging the set time length of the exception handling according to the set time length of the exception handling stored currently;

and closing the 5G network within the prolonged set time period.

In a possible implementation manner, the connection module 142 is further configured to determine, before the extending the set duration, whether a number of continuous extensions for the abnormal NR cell reaches a set number threshold;

If not, the step of prolonging the set time length is carried out.

In a possible implementation manner, the connection module 142 is further configured to clear the set duration and update the abnormal NR cell to a normal NR cell if the number of continuous extensions to the abnormal NR cell reaches a set number threshold.

In a possible implementation manner, the connection module 142 is further configured to ignore measurement of a frequency point where the abnormal NR cell is located if the candidate NR frequency point includes other frequency points except the frequency point where the abnormal NR cell is located.

In a possible implementation manner, the connection module 142 is further configured to obtain, at a set time interval, a distance between itself and the abnormal NR cell;

And if the distance exceeds the set distance threshold, updating the abnormal NR cell into a normal NR cell.

On the basis of the above embodiments, the embodiment of the present application further provides a terminal device, and fig. 15 shows a schematic structural diagram of a terminal device provided in some embodiments, as shown in fig. 15, including: processor 151, communication interface 152, memory 153 and communication bus 154, wherein processor 151, communication interface 152, memory 153 complete the communication between each other through communication bus 154;

The memory 153 stores a computer program that, when executed by the processor 151, causes the processor 151 to execute the steps of the network connection method according to any one of the above embodiments.

The communication bus mentioned by the above-mentioned terminal device may be a peripheral component interconnect standard (PERIPHERAL COMPONENT INTERCONNECT, PCI) bus or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, or the like. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus.

The communication interface 152 is used for communication between the terminal device and other devices.

The memory may include random access memory (Random Access Memory, RAM) or may include non-volatile memory (NVM), such as at least one disk memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.

The processor may be a general-purpose processor, including a central processing unit, a network processor (Network Processor, NP), etc.; but also digital instruction processors (DIGITAL SIGNAL Processing units, DSPs), application specific integrated circuits, field programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

On the basis of the above embodiments, a computer readable storage medium is provided in the embodiments of the present invention, where the computer readable storage medium stores a computer program executable by a terminal device, and when the program runs on the terminal device, the program causes the terminal device to implement the steps of the network connection method in any one of the above embodiments.

The computer readable storage medium may be any available medium or data storage device that can be accessed by a processor in a terminal device, including but not limited to magnetic memories such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc., optical memories such as CD, DVD, BD, HVD, etc., and semiconductor memories such as ROM, EPROM, EEPROM, nonvolatile memories (NAND FLASH), solid State Disks (SSD), etc.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A method of network connection, the method comprising:

2. The method of claim 1, wherein if camping continues on the currently camping NR cell, the method further comprises:

acquiring the current stored exception handling set time length;

and prohibiting access to the abnormal NR cell within the set abnormal processing time.

3. The method according to claim 2, wherein the method further comprises:

And when the set time length of the abnormal processing is reached, if a switching instruction sent by the base station for switching to the abnormal NR cell is received, accessing to the abnormal NR cell.

4. A method according to claim 3, characterized in that the method further comprises:

if the access to the abnormal NR cell fails, continuing to reside in the current resident NR cell, and prolonging the set time length of the abnormal processing according to the set time length of the abnormal processing stored currently;

5. The method of claim 1, wherein if searching for networks under a long term evolution, LTE, network, the method further comprises:

acquiring the current stored exception handling set time length;

6. The method of claim 5, wherein the method further comprises:

When the set time length of the abnormal processing is reached, a 5G network is opened, and NR cells are searched again;

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

If the network is resided in the 5G network and the access of the abnormal NR cell fails again, continuing to search for the network under the LTE network; and prolonging the set time length of the exception handling according to the set time length of the exception handling stored currently;

and closing the 5G network within the prolonged set time period.

8. The method according to claim 4 or 7, wherein before the extending the set time period, the method further comprises:

judging whether the number of continuous extension times of the abnormal NR cell reaches a set number threshold;

If not, the step of prolonging the set time length is carried out.

9. The method of claim 8, wherein the method further comprises:

And if the number of continuous extension times of the abnormal NR cell reaches a set number threshold, resetting the set duration, and updating the abnormal NR cell into a normal NR cell.

10. Terminal device, characterized in that it comprises at least a processor and a memory, said processor being adapted to carry out the steps of the network connection method according to any of claims 1-9 when executing a computer program stored in the memory.