CN115150912A

CN115150912A - Network connection method and terminal equipment

Info

Publication number: CN115150912A
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: 2022-10-04
Anticipated expiration: 2042-06-30
Also published as: CN115150912B

Abstract

The application provides a network connection method, a network connection device, terminal equipment and a storage medium, which are used for ensuring high-quality development of services. According to the method and the device, 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 reside in the current resident NR cell; if the signal quality of the current resident NR cell does not meet the set requirement, network searching is carried out under the LTE network so as to reside in the LTE cell, therefore, 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 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, an apparatus, a terminal device, and a storage medium.

Background

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

However, the 5G network still has some network configuration problems, which greatly affects the high-quality development of services such as data service and voice service in the 5G network. For example, when a User Equipment (UE) of a User resides in a 5G normal New Radio Access (NR) cell a, if an abnormal NR cell B with good signal quality currently exists and meets a reporting condition, the base station may instruct the UE to switch to the NR cell B, and the UE may reestablish a connection with the cell a and camp on the cell a again if the UE fails in a Random Access Channel (RACH) of the NR cell B. Then, the above procedure may be repeated again, and the process is repeated in a cyclic manner, so that the UE is frequently switched between the NR cell a and the NR cell B, which greatly affects the stability and continuity of the service and the high-quality development of the service.

Therefore, how to ensure the high-quality development of services in the presence of abnormal NR cells is a technical problem that needs to be solved urgently.

Disclosure of Invention

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

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

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

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

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

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

the acquisition module is used for acquiring a candidate new wireless access NR frequency point to be measured through the 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 where the predetermined abnormal NR cell is located;

In a third aspect, the present application provides a terminal device, which at least comprises a processor and a memory, wherein the processor is configured to implement the steps of the network connection method as described in any one of the 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 any of the network connection methods described above.

According to the method and the device, 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 reside in the current resident NR cell; if the signal quality of the current resident NR cell does not meet the set requirement, network searching is carried out under the LTE network so as to reside in the LTE cell, therefore, 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 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 manner in the related art, a brief description will be given below of the drawings required for the description of the embodiments or the related art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art according to the drawings.

Fig. 1 illustrates a schematic structural diagram of a terminal device 100 according to some embodiments;

fig. 2 shows a block diagram of a software structure of a terminal device 100 according to some embodiments;

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

fig. 4 is a schematic diagram illustrating a process of determining an abnormal NR cell according to some embodiments;

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

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

fig. 7 illustrates a fourth network connection process diagram provided by some embodiments;

fig. 8 is a diagram illustrating a fifth network connection process provided by some embodiments;

fig. 9 is a diagram illustrating a sixth network connection process provided by some embodiments;

fig. 10 is a diagram illustrating a seventh network connection process provided by some embodiments;

fig. 11 is a diagram illustrating an eighth network connection process provided by some embodiments;

fig. 12 is a schematic diagram illustrating a ninth network connection process provided by some embodiments;

fig. 13 is a diagram illustrating a tenth network connection process provided by some embodiments;

FIG. 14 illustrates a network connection device according to some embodiments;

fig. 15 shows a schematic structural diagram of a terminal device according to some embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

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

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

the 5G network still has some network configuration problems, which greatly affects the high-quality development of services such as data service and voice service in the 5G network. For example, when a User Equipment (UE) of a User resides in a 5G normal New Radio Access (NR) cell a, if an abnormal NR cell B with good signal quality currently exists and meets a reporting condition, the base station may instruct the UE to switch to the NR cell B, and the UE may reestablish a connection with the cell a and camp on the cell a again if the UE fails in a Random Access Channel (RACH) of the NR cell B. Then, the above procedure may be repeated to repeat, which causes frequent ping-pong handover between the NR cell a and the NR cell B, greatly affecting the stability and continuity of the service and affecting the high-quality development of the service.

Therefore, when an abnormal NR cell exists, how to ensure high-quality development of services is a technical problem that needs to be solved urgently.

In view of this, in order to solve the technical problem that the high-quality development of services is affected when an abnormal NR cell exists in the related art, embodiments of the present application provide a network connection method, an apparatus, a terminal device, and a storage medium. The method and the device can judge whether the signal quality of the current resident NR cell meets the set requirement or not when the obtained candidate NR frequency point to be measured is the frequency point where the predetermined abnormal NR cell is located; if the signal quality of the current resident NR cell meets the set requirement, continuing to reside in the current resident NR cell; if the signal quality of the current resident NR cell does not meet the set requirement, network searching is carried out under the LTE network so as to reside in the LTE cell, therefore, 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 continuity of the service are ensured, and the high-quality development of the service is ensured.

In a possible implementation manner, fig. 1 illustrates a schematic structural diagram of a terminal device 100 provided by some embodiments. It should be understood that the terminal device 100 shown in fig. 1 is only an example, and the terminal device 100 may have more or less components than those 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 block diagram of a hardware configuration of a terminal device 100 according to an exemplary embodiment is exemplarily shown in fig. 1. As shown in fig. 1, the terminal device 100 includes: a Radio Frequency (RF) circuit 110, a memory 120, a display unit 130, a camera 140, a sensor 150, an audio circuit 160, a Wireless Fidelity (Wi-Fi) module 170, a processor 180, a bluetooth module 181, and a power supply 190.

The RF circuit 110 may be used for receiving and transmitting signals during information transmission and reception or during a call, and may receive downlink data of a base station and then send the downlink data to the processor 180 for processing; the uplink data may be transmitted to the base station. Typically, the RF circuitry includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The 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 executing software programs or data stored in the memory 120. The 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 in the present application may store an operating system and various application programs, and may also store program codes for executing the network connection method according to the embodiment of the present application.

The display unit 130 may be used to receive input numeric or character information and generate signal input related to user settings and function control of the terminal device 100, and specifically, the display unit 130 may include a touch screen 131 disposed on the front surface of the terminal device 100 and capable of collecting touch operations, such as button clicking, by the user thereon or nearby.

The display unit 130 may also be used to display a Graphical User Interface (GUI) of information input by or provided to the user and various menus of the terminal apparatus 100. Specifically, the display unit 130 may include a display screen 132 disposed on the front surface of the terminal device 100. The display screen 132 may be configured in the form of a liquid crystal display, a light emitting diode, 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.

Wherein the touch screen 131 may be overlaid on the display screen 132, the touch screen 131 and the display screen 132 may also be integrated to implement the input and output functions of the terminal device 100, and after the integration, the touch screen may be referred to as a touch display screen for short. In the present application, the display unit 130 may display the application programs and the corresponding operation steps.

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 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 elements convert the optical signals into electrical signals which are then passed to the processor 180 for conversion into digital image signals.

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 a gyroscope, barometer, hygrometer, thermometer, infrared sensor, light sensor, motion sensor, and the like.

The audio circuitry 160, speaker 161, microphone 162 may provide an audio interface between the user and the terminal device 100. The audio circuit 160 may transmit the electrical signal converted from the received audio data to the speaker 161, and convert the electrical signal into a sound signal for output by the speaker 161. The terminal device 100 may further be configured with a volume button for adjusting the volume of the sound signal, and may be configured to combine other buttons to adjust the closed area. On the other hand, the microphone 162 converts the collected sound signal into an electrical signal, converts the electrical signal into audio data after being received by the audio circuit 160, and outputs the audio data to the RF circuit 110 to be transmitted to, for example, another terminal or outputs the audio data to the memory 120 for further processing.

Wi-Fi belongs to a short-distance wireless transmission technology, and the terminal device 100 can help a user to send and receive e-mails, browse webpages, access streaming media and the like through the Wi-Fi module 170, and provides wireless broadband internet access for the user.

The processor 180 is a control center of the terminal device 100, connects various parts of the entire terminal device 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, processor 180 may include one or more processing units; the processor 180 may also integrate an application processor and a baseband processor, wherein, the application processor mainly handles operating systems, user interfaces, application programs, etc., and the baseband processor mainly handles wireless communications. It will be appreciated that the baseband processor described above may not be integrated into the processor 180. In the present application, the processor 180 may run an operating system, an application program, a user interface display, a touch response, and the network connection method according to the embodiment of the present application. Further, the processor 180 is coupled with the display unit 130.

And 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 smart watch) also equipped with a bluetooth module through the bluetooth module 181, so as to perform data interaction.

The terminal device 100 also includes a power supply 190 (such as a battery) for powering the various components. The power supply may be logically connected to the processor 180 through a power management system to manage charging, discharging, power consumption, etc. through the power management system. The terminal device 100 may further be configured with a power button for powering on and off the terminal device, and locking the screen.

Fig. 2 shows a block diagram of a software structure of a terminal device 100 according to some embodiments.

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 may be 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, respectively.

The application layer may include a series of application packages.

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

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 display screen, intercept the display 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, dialed and received calls, browsing history and bookmarks, phone books, 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, the display screen including the short message notification icon may include a view for displaying text and a view for displaying a picture.

The phone manager is used to provide the communication function of the terminal device 100. 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 allows the application to display notification information (e.g., the message content of a short message) in the status bar, can be used to convey notification-type messages, can disappear automatically after a short 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 in the form of a dialog window on the display. Such as prompting for a text message in the status bar, and (4) giving out prompt tones, vibrating the terminal, flashing an indicator light and the like.

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.

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 this embodiment of the present application, the terminal device shown in fig. 1 or fig. 2 may obtain a New Radio Access (NR) candidate frequency point to be measured through a Radio Resource Control (RRC) Reconfiguration message; if the candidate NR frequency point is a frequency point where a predetermined abnormal NR cell is located, judging whether the signal quality of the current resident NR cell meets a set requirement; if the signal quality of the current resident NR cell meets the set requirement, continuing to reside in the current resident NR cell; and if the signal quality of the current resident NR cell does not meet the set requirement, searching the network under a Long Term Evolution (LTE) network to reside in the LTE cell.

In a possible embodiment, in order to ensure high-quality development of services when an abnormal NR cell exists, the present application provides a network connection method, an apparatus, a terminal device, and a storage medium. Fig. 3 is a schematic diagram of a first network connection process provided by some embodiments, and as shown in fig. 3, the process includes the following steps:

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

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

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

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

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 that meets a reporting condition, a base station may instruct the UE to switch to the NR cell B, but the UE fails to access the NR cell B, that is, an RACH failure, for convenience of description, the RACH failure at this time is referred to as a first RACH failure; the UE may re-establish a connection with cell a and re-camp on cell a. Then, it may happen that the abnormal NR cell B satisfies the reporting condition repeatedly, and the base station instructs the UE to switch to the NR cell B, but the UE fails to access the NR cell B, that is, the RACH failure at this time is referred to as two consecutive RACH failures for convenience of description. By analogy, the situations that three times of continuous RACH fails and N times of continuous RACH fails in … … may occur, that is, frequent ping-pong switching occurs, which greatly affects the stability and continuity of the service and affects the high-quality development of the service.

In a possible implementation manner, in order to avoid frequent ping-pong handover and ensure high-quality development of services, whether the number of times of failure of the terminal device in the continuous RACH in any NR cell reaches a set number threshold value or not may be determined, and if the number of times of failure of the terminal device in the continuous RACH in any NR cell reaches the set number threshold value, the NR cell may be determined as an abnormal NR cell. For convenience of understanding, the steps shown in fig. 4 may be adopted to determine an abnormal NR cell, and fig. 4 is a schematic diagram illustrating a process of determining an abnormal NR cell according to some embodiments, where the process includes the following steps:

s401: judging whether the number of times of continuous RACH failure of the terminal equipment in any NR cell reaches a set number threshold value, if so, performing S402; if not, proceed to S403.

S402: the NR cell is determined as an abnormal NR cell.

S403: the NR cell is determined as a normal NR cell.

For example, when the set number threshold is 2, and when the terminal device fails to perform RACH twice in a certain NR cell continuously, 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 a frequency point where a predetermined abnormal NR cell is located, that is, only the frequency point where the predetermined abnormal NR cell is located is configured, if a handover (access) operation to the abnormal NR cell is performed, a situation that continuous RACH fails in the abnormal NR cell and frequent ping pong handover may occur again. In order to ensure the high-quality development of services, when the terminal equipment identifies that the candidate NR frequency point is the frequency point where the predetermined abnormal NR cell is located, it may further determine whether the signal quality of the currently camped NR cell meets the set requirement, and flexibly select the accessed (camped) cell according to the determination result of whether the signal quality of the currently camped NR cell meets the set requirement, thereby ensuring the high-quality development of services. When determining whether the Signal Quality of the currently camped NR cell satisfies the setting requirement, it may be determined whether a Reference Signal Receiving Power (RSRP) of the currently camped NR cell is not less than a set first threshold (denoted by T1 for convenience of description), and whether a Reference Signal Receiving Quality (RSRQ) of the LTE camped NR cell is not less than a set second threshold (denoted by T2 for convenience of description), where if the RSRP is not less than T1 and the RSRQ is not less than T2, the Signal Quality of the currently camped NR cell may be considered to satisfy the setting requirement, and otherwise, the Signal Quality of the currently camped NR cell may be considered to not satisfy the setting requirement.

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

In a possible implementation manner, if the signal quality of the currently camped NR cell meets the set requirement, the currently camped NR cell may be considered to have a better signal quality, which may meet the requirement of high quality development of the service, and may continue to camp on the currently camped NR cell.

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

In a possible implementation manner, if the signal quality of the currently camped NR cell does not meet the set requirement, it may be considered that the signal quality of the currently camped NR cell is not good and may not meet the requirement of high-quality development of a service, and in order to avoid soldier handover and ensure high-quality development of a service, optionally, the terminal device (UE) may close the 5G network first, open the LTE network, that is, open the 4G network, and perform network search under the LTE network.

According to the method and the device, 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 reside in the current resident NR cell; if the signal quality of the current resident NR cell does not meet the set requirement, network searching is carried out under the LTE network so as to reside in the LTE cell, and therefore frequent ping-pong switching of the terminal equipment between the abnormal NR cell and the normal NR cell such as the current resident NR cell can be effectively avoided, the stability and 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 ping-pong handover, when a candidate NR frequency point to be measured is a frequency point where an abnormal NR cell is located, access to the abnormal NR cell, that is, a bar falls the abnormal NR cell, may be prohibited for a certain period of time. Specifically, referring to fig. 5, fig. 5 is a schematic diagram illustrating a second network connection process provided in some embodiments, where the process includes the following steps:

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

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

S503: if the signal quality of the currently camped NR cell meets the set requirement, the currently camped NR cell continues to camp, and S504 is performed.

S504: if the cell continues to reside in the current resident NR cell, acquiring the currently stored abnormal processing set time length; and forbidding accessing to the abnormal NR cell within the set time length of the abnormal processing.

The time length set for exception handling is not specifically limited, and can be flexibly set according to requirements. Illustratively, it may be 3 minutes (min), 5min, 30min, 1 hour, etc. And in the set time length of the abnormal processing, prohibiting accessing to the abnormal NR cell, namely, removing the set time length of the abnormal NR cell bar abnormal processing. Illustratively, if the currently saved exception handling setting time is 3min, the abnormal cell bar is dropped for 3min.

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

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

s601: and acquiring candidate NR frequency points to be measured through RRC reconfiguration information.

S602: if the candidate NR frequency point is a frequency point where a predetermined abnormal NR cell is located, judging whether the signal quality of the current resident NR cell meets a set requirement; if yes, proceed to S603.

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

S604 the method comprises the following steps: acquiring currently stored abnormal processing set duration; and prohibiting accessing to the abnormal NR cell within the set time length of the abnormal processing.

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

In a possible implementation manner, when the step S605 is executed, if the access to the abnormal NR cell fails, it may be considered that the abnormal NR cell has not recovered to be normal, and in order to ensure stability and continuity of the service and ensure high-quality development of the service, the abnormal NR cell may continue to reside in the currently residing NR cell, and in addition, in order to further avoid frequent soldier-pong handover, a time duration may be set according to currently stored abnormal processing, and the time duration set for the abnormal processing may be extended; and forbidding to access the abnormal NR cell within the prolonged abnormal processing set time length. The set time after the extension is not specifically limited, and can be flexibly set according to requirements. Specifically, referring to fig. 7, fig. 7 is a schematic diagram illustrating a fourth network connection process according to some embodiments, where the process includes the following steps:

s701: and acquiring candidate NR frequency points to be measured through RRC reconfiguration information.

S702: if the candidate NR frequency point is a frequency point where a predetermined abnormal NR cell is located, judging whether the signal quality of the current resident NR cell meets a set requirement; if yes, S703 is performed.

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

S704: acquiring currently stored abnormal processing set duration; and prohibiting accessing to the abnormal NR cell within the set time length of the abnormal processing.

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

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

S706: continuing to reside in the current residence NR cell, and prolonging the abnormal processing set time according to the currently stored abnormal processing set time; and prohibiting accessing to the abnormal NR cell within the prolonged abnormal processing set duration.

It can be understood that when the extended duration of the abnormal handling is reached, if a handover instruction sent by the base station to the abnormal NR cell is received, the abnormal NR cell may be accessed again; if the abnormal NR cell fails to be accessed again, the current resident NR cell can be continuously resident, and the current stored abnormal processing set time length is prolonged again according to the current stored abnormal processing set time length; and forbidding accessing to the abnormal NR cell within the set time length of the abnormal processing after the re-extension.

In a possible embodiment, considering that the duration of continuous service development of the user based on the terminal device is also generally limited, in order to increase flexibility of network connection, before extending (extending again) the above-mentioned set duration of exception handling, it may also be determined whether the number of continuous extensions for the abnormal NR cell reaches a set threshold number of times; if the set time threshold is not reached, the step of prolonging the set time of the abnormal processing can be carried out; and if the number of times of continuous extension for the abnormal NR cell reaches a set number threshold, clearing the set time length of the abnormal processing, and updating the abnormal NR cell into a normal NR cell.

For convenience of understanding, the specific process of network connection provided in the present application is illustrated below by taking the number threshold as 4 as an example. Referring to fig. 8, fig. 8 is a schematic diagram of a fifth network connection process provided in some embodiments, where the process includes the following steps:

s801: and acquiring candidate NR frequency points to be measured through RRC reconfiguration information.

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; if yes, S803 is performed.

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

S804: and acquiring the currently stored abnormal processing set time length, and if the currently stored abnormal processing set time length is 3min, prohibiting accessing the abnormal NR cell B within 3min, namely, dropping the abnormal NR cell B bar for 3min.

S805: when reaching 3min, if receiving a switching instruction sent by the base station to the abnormal NR cell B, 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 set time of the abnormal processing according to the currently stored set time of the abnormal processing for 3min, and if the time is prolonged to 5min, forbidding to access the abnormal NR cell B within the prolonged set time of the abnormal processing, namely, dropping the bar of the abnormal NR cell B for 5min.

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

S807: when the time reaches 5min, if a handover instruction sent by the base station to the abnormal NR cell B 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 set time of the abnormal processing according to the currently stored set time of the abnormal processing for 5min, and if the time is prolonged to 30min, forbidding to access the abnormal NR cell B within the prolonged set time of the abnormal processing, namely, dropping the bar of the abnormal NR cell B for 30min.

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

S809: and when reaching 30min, if receiving a switching instruction sent by the base station to the abnormal NR cell B, accessing the abnormal NR cell B, and if failing to access the abnormal NR cell B, executing S810.

S810: if the abnormal processing set time length is prolonged again, the continuous prolonging times of the abnormal NR cell reach the set time threshold, so that the abnormal processing set time length can not be prolonged any more, but the abnormal processing set time length is cleared, and the abnormal NR cell B is updated to the normal NR cell.

After the abnormal NR cell B is updated to the normal NR cell, the terminal device may perform normal measurement, reporting, accessing, and other related matters on the NR cell B, which is not described herein again.

In a possible implementation manner, if the signal quality of the currently residing NR cell does not meet the setting requirement, the 5G network is closed, after a network search is performed in the 4G network (LTE network), in order to avoid frequent ping pong handover, the currently stored abnormal processing setting duration may be obtained, and within the abnormal processing setting duration, the 5G network is closed, that is, the 5G network (NR disable) is prohibited to be used. Specifically, referring to fig. 9, fig. 9 is a schematic diagram illustrating a sixth network connection process provided in some embodiments, where the process includes the following steps:

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

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

S903 the method comprises the following steps: and 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 currently stored abnormal processing set duration; and within the set time length of the exception handling, closing the 5G network.

The currently stored abnormal processing set duration is not specifically limited, and can be flexibly set according to requirements. Illustratively, the exception handling setting time period may be 3min, 5min, 30min, 1 hour, and the like. And closing the 5G network within the set time length of the exception handling. Illustratively, if the currently saved exception handling setting time is 3min, the 5G network is closed for 3min.

In a possible embodiment, considering that the abnormal NR cell may return to normal when the above abnormal processing setting is reached, in order to increase flexibility of network connection, optionally, when the abnormal processing setting is reached, the 5G network may be turned on, the NR cells in the 5G network may be searched again, and the accessed NR cell may be determined based on the signal quality of the searched NR cell. Specifically, referring to fig. 10, fig. 10 shows a schematic diagram of a seventh network connection process provided in some embodiments, where the process includes the following steps:

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

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

S1003: and 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 currently stored abnormal processing set duration; and closing the 5G network within the set time length of the exception handling.

S1005: when the abnormal processing setting is reached, opening the 5G network, and searching the NR cell again; an accessed NR cell is determined based on the searched signal quality of the NR cell.

In a possible implementation, when step S1005 is executed, if the ue camps on the 5G network and fails to access the abnormal NR cell again, in order to ensure high quality development of the service, the ue may continue to search for the LTE network and camp on the LTE cell; according to the currently stored abnormal processing set time length, prolonging the abnormal processing set time length; and closing the 5G network within the prolonged set time length of the exception handling. The method and the device have the advantages that the prolonged abnormal processing set time length is not specifically limited and can be flexibly set according to requirements. Referring to fig. 11, fig. 11 is a schematic diagram illustrating an eighth network connection process provided in some embodiments, where the process includes the following steps:

s1101: and acquiring candidate NR frequency points to be measured through RRC reconfiguration information.

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

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

S1104: acquiring currently stored abnormal processing set duration; and within the set time length of the exception handling, closing the 5G network.

S1105: when the abnormal processing setting is reached, opening the 5G network, and searching the NR cell again; an accessed NR cell is determined based on the searched signal quality of the NR cell.

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

It can be understood that if the NR cell is successfully accessed, the NR cell is accessed and the service is carried out using the 5G network.

It is to be understood that, when the extended exception handling setting is reached, the 5G network may be turned on again, the NR cells in the 5G network may be searched again, and the accessed NR cell may be determined based on the signal quality of the searched NR cell. If the network is resided in the 5G network and the access is failed in the abnormal NR cell again, the network searching can be carried out under the LTE network; and the set time length of the abnormal processing is prolonged again according to the set time length of the abnormal processing stored currently, and the 5G network is closed within the set time length of the abnormal processing after the time length of the abnormal processing is prolonged again.

In a possible implementation manner, considering that the duration of the user continuously conducting the service based on the terminal device also has a certain time limit, in order to increase the flexibility of the network connection, before the set duration is extended (re-extended), it may be further determined whether the number of times of continuous extension for the abnormal NR cell reaches a set number threshold; if the set time threshold is not reached, the step of prolonging the set time length can be carried out; if the number of times of continuous extension for the abnormal NR cell has reached the set number threshold, the abnormal processing set duration may be cleared, and the abnormal NR cell may be updated to the normal NR cell.

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

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

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; if not, S1203 is performed.

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

S1204: and obtaining the currently stored abnormal processing set time length, and closing the 5G network for 3min if the currently stored abnormal processing set time length is 3min.

S1205: when the time reaches 3min, the 5G network is opened, and the NR cell is searched again; an accessed NR cell is determined 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 the network under the LTE network; and prolonging the set time of the abnormal processing according to the currently stored set time of the abnormal processing for 3min, and if the set time of the abnormal processing is prolonged to 5min, closing the 5G network within the prolonged set time of the abnormal processing, namely closing the 5G network for 5min.

S1208: when the time reaches 5min, the 5G network is opened, and the NR cell is searched again; based on the signal quality of the searched NR cell, the accessed NR cell is determined, and if camping on the 5G network and access fails again in the abnormal NR cell B, S1209 is performed.

S1209: continuing to search the network under the LTE network; and according to the currently stored abnormal processing setting time length of 5min, prolonging the abnormal processing setting time length, and if the abnormal processing setting time length is prolonged to 30min, closing the 5G network within the prolonged abnormal processing setting time length, namely closing the 5G network for 30min.

Here, the number of times of continuous extension for the abnormal NR cell B at this time is 3 times.

S1210: when the time reaches 30min, the 5G network is opened, and the NR cell is searched again; based on the signal quality of the searched NR cell, an accessed NR cell is determined, and if camping on the 5G network and access fails again in the abnormal NR cell B, S1211 is performed.

S1211: and continuing to search the network under the LTE network, if the set time length of the abnormal processing is extended again, the continuous extension times of the abnormal NR cell reach the set time threshold, so that the set time length of the abnormal processing can not be extended any more, but the set time length of the abnormal processing is cleared, and optionally, the 5G network can be opened, the NR cell is searched again, and the abnormal NR cell B is updated to be the normal NR cell.

After the abnormal NR cell B is updated to the normal NR cell, the terminal device may perform normal measurement, reporting, accessing, and other relevant matters on the NR cell B, which is not described herein again.

In a possible implementation manner, if the candidate NR frequency points to be measured contain other frequency points except the frequency point where the above-mentioned abnormal NR cell is located, in order to avoid frequent ping-pong handover, measurement on the frequency point where the abnormal NR cell is located may be directly omitted, optionally, other frequency points in the candidate NR frequency points except the frequency point where the abnormal NR cell B is located may be measured, and other related matters, wherein other frequency points may be measured by using the prior art, and the other related matters are not described herein again. For ease of understanding, referring to fig. 13, fig. 13 is a schematic diagram illustrating a tenth network connection process provided by some embodiments, the process including the following steps:

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

S1302: if the candidate NR frequency points contain other frequency points except the frequency point where the abnormal NR cell B is located, ignoring the 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 a possible implementation manner, the terminal device may obtain 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 in the signal coverage of the abnormal NR cell, and the abnormal NR cell may be updated to the normal NR cell, and the related processing matter for the abnormal NR cell in the above embodiment is stopped. The set distance threshold may be flexibly set according to requirements, which is not specifically limited in the present application. For example, the set distance threshold may be 1 km or the like.

For example, it is assumed that, in the step S1302 in the above embodiment, during the execution period of "if the frequency points other than the frequency point where the abnormal NR cell B is located are included in the candidate NR frequency points, the measurement on the frequency point where the abnormal NR cell B is located is omitted, if it is recognized that the distance between the terminal device itself and the abnormal NR cell B exceeds the set distance threshold, the abnormal NR cell B may be immediately updated to the normal NR cell, and the execution process on the S1302 is terminated, for example, according to a normal processing flow in the prior art, through an RRC reconfiguration message, the candidate NR frequency point to be measured pushed by the base station is obtained, and relevant matters such as measurement on the candidate NR frequency point are preferably obtained, which is not described herein again.

For another example, suppose that S1209 ″ in the above embodiment continues to the LTE network for network searching; and according to the currently stored abnormal processing setting time length of 5min, prolonging the abnormal processing setting time length, if the abnormal processing setting time length is prolonged to 30min, closing the 5G network within the prolonged abnormal processing setting time length, namely closing the 5G network for 30 min' during the execution period, if the distance between the terminal equipment and the abnormal NR cell is identified to exceed the setting distance threshold value, immediately updating the abnormal NR cell to a normal NR cell, terminating the execution process of S1209, immediately opening the 5G network, and accessing the NR cell based on the normal processing flow of re-searching the NR cell in the prior art, which is not described herein again.

Similarly, for another example, assuming that S808 ″ in the above embodiment continues to reside in the currently residing NR cell a, and the abnormal processing setting duration is extended by 5min according to the currently stored abnormal processing setting duration, and assuming that the abnormal processing setting duration is extended by 30min, during the execution period of the extended abnormal processing setting duration, prohibiting accessing the abnormal NR cell B, that is, dropping the bar of the abnormal NR cell B by 30min ", and if it is identified that the distance between the terminal device itself and the abnormal NR cell exceeds the set distance threshold, the abnormal NR cell B may be immediately updated to the normal NR cell, and the execution process of S808 is terminated, for example, the candidate NR frequency point to be measured may be obtained by further performing a normal processing flow in the prior art, for example, by using an RRC reconfiguration message, and details are not repeated herein.

Based on the same technical concept, the present application provides a network connection device, and referring to fig. 14, fig. 14 shows a schematic diagram of a network connection device according to some embodiments, 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 currently residing 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 saved abnormal processing set time length if the current NR cell continues to reside in the current NR cell; and forbidding to access the abnormal NR cell within the set time length of the abnormal processing.

In a possible implementation manner, the connection module 142 is further configured to access the abnormal NR cell when receiving a handover instruction sent by a base station to the abnormal NR cell when the duration of the abnormal processing setting is reached.

In a possible implementation manner, the connection module 142 is further configured to continue residing in the currently residing NR cell if access to the abnormal NR cell fails, and set a duration for exception handling according to a currently stored exception handling, and prolong the set duration for exception handling;

and forbidding to access the abnormal NR cell within the prolonged abnormal processing set time length.

In a possible implementation manner, the connection module 142 is further configured to obtain a currently stored set time length for exception handling if a network search is performed in an 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, when the time length reaches the abnormal processing setting, open the 5G network and re-search for the NR cell;

an accessed NR cell is determined based on the searched signal quality of the NR cell.

In a possible embodiment, the connection module 142 is further configured to continue to perform network search in the LTE network if the ue camps on the 5G network and fails to access the abnormal NR cell again; according to the currently stored abnormal processing set time length, prolonging the abnormal processing set time length;

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

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

if not, the subsequent 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 be a normal NR cell if the number of times that the abnormal NR cell is continuously extended reaches a set number threshold.

In a possible implementation manner, the connection module 142 is further configured to ignore measurement of the frequency point where the abnormal NR cell is located if the candidate NR frequency points include 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 a distance between itself and the abnormal NR cell according to a set time interval;

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

On the basis of the foregoing embodiments, an 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: the system comprises a processor 151, a communication interface 152, a memory 153 and a communication bus 154, wherein the processor 151, the communication interface 152 and the memory 153 are communicated with each other through the communication bus 154;

the memory 153 stores therein a computer program that, when executed by the processor 151, causes the processor 151 to perform the steps of the network connection method described in any of the above embodiments.

The communication bus mentioned in the above terminal device may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.

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

The Memory may include a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as at least one disk Memory. Alternatively, the memory may 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 (NP), and the like; but may also be a Digital instruction processor (DSP), an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like.

On the basis of the foregoing embodiments, an embodiment of the present invention provides a computer-readable storage medium, where a computer program executable by a terminal device is stored in the computer-readable storage medium, and when the program is run on the terminal device, the computer program causes the terminal device to implement the steps of the network connection method in any of the foregoing embodiments when the program is executed by the terminal device.

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 memory such as a flexible disk, hard disk, magnetic tape, magneto-optical disk (MO), etc., optical memory such as CD, DVD, BD, HVD, etc., and semiconductor memory such as ROM, EPROM, EEPROM, nonvolatile memory (NAND FLASH), solid State Disk (SSD), etc.

As will be appreciated by one skilled in the art, 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 so forth) 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 changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

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

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

acquiring currently stored abnormal processing set duration;

and forbidding to access the abnormal NR cell within the set time length of the abnormal processing.

3. The method of claim 2, further comprising:

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

4. The method of claim 3, further comprising:

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

and forbidding to access the abnormal NR cell within the prolonged abnormal processing set duration.

5. The method of claim 1, wherein if the network search is performed in a Long Term Evolution (LTE) network, the method further comprises:

acquiring currently stored abnormal processing set duration;

6. The method of claim 5, further comprising:

when the abnormal processing set time is reached, opening the 5G network, and searching the NR cell again;

7. The method of claim 6, further comprising:

if the network resides in the 5G network and the access is failed again in the abnormal NR cell, continuing to search the network under the LTE network; according to the currently stored abnormal processing set time length, prolonging the abnormal processing set time length;

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

8. The method of claim 4 or 7, wherein before said extending said set duration, said method further comprises:

judging whether the continuous extension times of the abnormal NR cell reach a set time threshold value or not;

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

9. The method of claim 8, further comprising:

and if the continuous extension times of the abnormal NR cell reach a set time threshold, clearing the set time length, and updating the abnormal NR cell into a normal NR cell.

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