CN116074912A

CN116074912A - User equipment and network switching method and medium thereof

Info

Publication number: CN116074912A
Application number: CN202111284677.9A
Authority: CN
Inventors: 罗志伟; 史纳
Original assignee: Huawei Device Co Ltd
Current assignee: Huawei Device Co Ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2023-05-05

Abstract

The application relates to user equipment, a network switching method and a medium thereof, wherein the method is used for the user equipment and comprises the following steps: receiving a network connection command for indicating that the user equipment is connected to a first network of the first network equipment; and under the condition that the user equipment is connected with the first network through the first network equipment and the connection time and the connection times meet the preset conditions, the network connection command is not executed in the preset time period, so that the user equipment is connected with the second network and remains connected with the second network. By the method, the user equipment can stably use the second network within the preset time period, so that the operation that the user equipment repeatedly performs switching and registration between the second network and the first network is reduced, and network disconnection of the user equipment is avoided.

Description

User equipment and network switching method and medium thereof

Technical Field

The present application relates to communication technology. And more particularly, to a user equipment and a network switching method and medium thereof.

Background

In the field of mobile communication, due to poor network signals or limitation of a communication carrier, user equipment can switch among multiple systems of networks (for example, between 5G/4G/3G/2G). For example: taking roaming service of a user using a user device as an example, the user device can access all standard networks provided by a communication carrier in a roaming country or region supported by the user device. There are also cases where a part of communication operators in a part of countries or regions allow only user equipment using roaming services to access a part of standard networks, for example: some communication operators only allow a user equipment using a roaming service to access a 3G network, and not allow access to a 4G or higher standard network.

Fig. 1 illustrates a scenario in which the user equipment 100 uses a roaming service, and a procedure in which the user equipment 100 shown in fig. 1 uses the roaming service through the network side 200 includes:

s1: the user equipment 100 attempts to register and access the 4G network;

s2: the network side 200 refuses the 4G network registration of the user equipment 100;

s3: the user equipment 100 registers and accesses the 3G network;

s4: the network side 200 transmits a network handover command for handover to the 4G network to the user equipment 100.

It can be seen that when the ue 100 is rejected by the high-system network (4G network), the ue 100 registers with the low-system network (3G network) according to the existing network searching protocol; if the ue 100 is in the low-system network (3G network), the ue 100 will quickly reselect or switch to the high-system network (4G network) according to the reselection priority and the switching policy in the existing network searching protocol, which makes the ue 100 return to step S1 again. In this case, the ue 100 is in the loop scenario of steps S1 to S4 in fig. 1, which results in the ue 100 being in a state of continuous disconnection, which affects the normal use of roaming services by the ue 100.

Disclosure of Invention

The invention aims to provide user equipment, a network switching method and a medium thereof.

A first aspect of the present application provides a network handover method, for a user equipment, including:

receiving a network connection command, wherein the network connection command is used for indicating that the user equipment is connected to a first network of the first network equipment; and under the condition that the user equipment is connected with the first network through the first network equipment and the connection time and the connection times meet the preset conditions, the network connection command is not executed in the preset time period.

That is, in the embodiment of the present application, the user equipment may be a mobile phone, the first network device may be a base station, and the first network may be a 4G network provided by the base station. If the user equipment attempts to connect to the first network but does not connect to the first network, the user equipment receives a network connection command, which is determined according to a reselection priority and a handover policy in a network searching protocol, and attempts to connect to the first network, and the network connection command may also be referred to as a network handover command. After the ue attempts to connect to the first network multiple times and is rejected by the first network, that is, the connection time and the connection number of the ue to connect to the first network satisfy the preset conditions, the ue may ignore the network connection command in the preset period, that is, may not execute the network connection command in the preset period.

In a possible implementation of the first aspect, the preset conditions include:

the number of times that the user equipment has been connected to the first network through the first network device exceeds a preset number threshold, and a time difference between a connection time of the user equipment to the first network through the first network device for the first time and a connection time of the user equipment to the first network through the first network device for the last time is smaller than a preset duration.

That is, in the embodiment of the present application, for example, the preset number of thresholds may be configured 3 times, and the preset duration may be configured to be 3 minutes, that is, the number of times the user equipment has attempted to connect to the first network through the first network device exceeds 3 times, and the connection time for the user equipment to perform the first connection to the first network and the connection time for the user equipment to perform the third connection to the first network are less than 3 minutes.

In a possible implementation of the above first aspect, before receiving the network connection command, the user equipment is connected to the second network, and the network connection command includes at least one of a cell handover command or a redirection command sent by the second network; and is also provided with

Not executing the network connection command for a preset period of time includes:

The user equipment remains connected to the second network.

That is, in an embodiment of the present application, the second network here may be a 3G network provided by a base station. The network connection command received by the user equipment while the user equipment remains connected to the second network may be one of a cell handover command or a redirection command sent by the 3G network to the user equipment. The method provided by the first aspect of the present application enables the user equipment to stably use the second network in a preset time period, reduces the operations that the user equipment repeatedly performs switching and registration between the second network and the first network, and avoids network disconnection of the user equipment.

In a possible implementation of the above first aspect, before receiving the network connection command, the user equipment is in an idle state, and the network connection command includes a cell reselection command generated by the user equipment; and is also provided with

Not executing the network connection command for a preset period of time includes: the user equipment remains in at least one of an idle state or the user equipment attempts to connect to the second network.

That is, in the embodiment of the present application, if the ue is in an idle state, the network connection command may be a cell reselection command, and in the case that the number of times the ue attempts to connect to the first network and the connection time meet preset conditions, the ue may continue to maintain the idle state or attempt to connect to the second network.

In a possible implementation manner of the first aspect, the not executing the network connection command for the preset period of time includes:

the connection function supporting the first network is closed.

That is, in the embodiment of the present application, in the case that the number of times and the connection time of the user equipment attempting to connect to the first network satisfy the preset conditions, the user equipment may close the connection function supporting the first network, so that the user equipment may continue to maintain the connection with the second network.

In a possible implementation of the first aspect, before receiving the network connection command, the method further includes:

in case the user device has connected to the first network via the first network device, a network connection record is recorded, the network connection record comprising a connection time of the connection.

That is, in the embodiment of the present application, the user equipment may record, through the network connection, the connection time of each time the user equipment is connected to the first network through the first network equipment. The network connection record may also be a network switch record. The connection time to connect to the first network may also be the time of occurrence of a network switch. Such as: the occurrence time of network registration failure when the user equipment attempts to connect to the 4G network, and the occurrence time of network handover when the user equipment switches from the 3G network to the 4G network.

In a possible implementation of the first aspect, the method further includes:

after a preset period of time, the network connection record is cleared.

That is, in the embodiment of the present application, after the preset period of time elapses, the user equipment may receive the network connection command again and attempt to connect to the first network.

In a possible implementation of the first aspect, the method further includes:

upon determining that the user equipment is not connected to the first network via the first network device, or

And executing the network connection command under the condition that the user equipment is judged to be connected with the first network through the first network equipment and the connection time and the connection times do not meet the preset conditions.

In a possible implementation of the first aspect, the method further includes:

after the user equipment is connected to the first network, the network connection record is cleared.

In a possible implementation manner of the first aspect, the first network is a 3G network, the second network is a 4G network or the first network is a 4G network, and the second network is a 5G network.

A second aspect of the present application provides a user equipment, comprising:

the network switching device comprises a memory, wherein the memory stores instructions, and a processor is used for reading and executing the instructions in the memory so as to enable the user equipment to execute the network switching method provided in the first aspect.

A third aspect of the present application provides a computer readable storage medium having instructions embodied therein which, when executed by a controller of a user equipment, cause the user equipment to implement a network handover method as provided in the foregoing first aspect.

Drawings

Fig. 1 is a schematic diagram of a scenario in which a user equipment uses roaming services according to an embodiment of the present application;

fig. 2 shows a schematic structural diagram of a user equipment according to an embodiment of the present application;

fig. 3 shows a schematic diagram of a scenario in which a user equipment switches between a 3G network and a 4G network according to an embodiment of the present application;

fig. 4 shows a schematic flow diagram of a user equipment switching between a 3G network and a 4G network according to an embodiment of the present application;

fig. 5 shows a schematic diagram of a scenario in which another user equipment switches between a 3G network and a 4G network according to an embodiment of the present application;

fig. 6 shows a schematic flow diagram of another user equipment switching between a 3G network and a 4G network according to an embodiment of the present application;

fig. 7 illustrates a scenario diagram of a user equipment handover network according to an embodiment of the present application;

fig. 8 is a schematic flow chart of a user equipment handover network according to an embodiment of the present application;

Fig. 9 shows a schematic diagram of a scenario in which a user equipment switches between a 4G network and a 5G network according to an embodiment of the present application;

fig. 10 shows a schematic flow diagram of a handover of a user equipment between a 4G network and a 5G network according to an embodiment of the present application.

Detailed Description

Embodiments of the present application include, but are not limited to, a user equipment, and a network switching method and medium thereof.

The technical scheme of the application can be applied to the communication fields of 2G/3G/4G/5G mobile communication, internet of things communication, radar communication, satellite communication and the like.

For the purpose of making the objects, technical solutions and advantages of the present application more clear, the following uses a user equipment supporting 2G/3G/4G/5G mobile communications as an example, and further details of embodiments of the present application are described with reference to the accompanying drawings.

In order to solve the problem that the ue 100 in fig. 1 needs to perform handover and registration between 3G/4G networks in a cyclic manner, the embodiment of the present application provides a method for implementing network handover between the ue 100 and the network side 200, in this embodiment of the present application, taking a case that a communication carrier provides a 3G network and a 4G network, the ue 100 may generate a network handover record between the ue 100 and the network side 200 (the 3G network and the 4G network) in a preset table in a storage area, where the network handover record includes information of a registration failure that the ue 100 fails to register the 4G network as shown in fig. 1, and information of a handover network that the ue 100 attempts to switch to the 4G network. When the user equipment 100 attempts to register and access the 4G network, the user equipment 100 may determine whether the network handover record satisfies a preset condition, and if so, the user equipment 100 may maintain connection with the 3G network for a preset period of time without performing an operation of attempting to handover to the 4G network.

In the embodiment of the present application, the user equipment 100 performs the information record of the registration failure of attempting to register and access the 4G network once, and the information of the handover network in which the user equipment 100 switches the 4G network from the 3G network may be recorded in the same network handover record; the information of registration failure includes: the occurrence time of network registration failure and the type of network registration failure; the information of the handover network includes: location information of the network side 200, type of network handover command, and occurrence time of network handover.

In this embodiment of the present application, the above-mentioned preset condition may be that the number of network switch records in the preset table in the storage area of the user equipment 100 is greater than or equal to a preset number threshold (for example, 3 pieces), the time difference between the occurrence time of the network registration failure or the occurrence time of the network switch contained in the first record and the last record in the preset table exceeds a preset duration (for example, 5 minutes), and the location information of the network side 200 contained in the network switch record in the preset table is the same. By the network switching method in the embodiment of the present application, if the user equipment 100 is in a state of cyclically switching and registering between the low-system network (3G network) and the high-system network (4G network), the user equipment 100 may not perform an operation of switching the high-system network in a preset time period, so that the user equipment may stably use the low-system network in the preset time period, which reduces the operations that the user equipment 100 repeatedly performs switching and registering between the low-system network and the high-system network, and avoids the disconnection of the user equipment 100.

The user equipment in the embodiments of the present application is a terminal equipment that provides voice and/or data connectivity to a user, for example, a common terminal equipment may include: vehicle-mounted devices, cell phones, tablet computers, notebook computers, palm top computers, mobile internet devices (mobile internet device, MID), wearable devices (including, for example, smart watches, smart bracelets, pedometers, etc.), personal digital assistants, portable media players, navigation devices, video game devices, set-top boxes, virtual reality and/or augmented reality devices, internet of things devices, industrial control devices, streaming media client devices, electronic books, reading devices, POS devices, and other devices. The network side in the present application includes, but is not limited to, radio frequency/microwave/millimeter wave and terahertz (THz) base stations, network servers, signal servers, wireless routers, and other electronic devices that transmit signals through antennas. In the embodiment of the present application, the user equipment is a mobile phone 100, and the network side is a base station 200.

Fig. 2 shows a schematic diagram of a mobile phone 100 according to an embodiment of the present application, where the mobile phone 100 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (universal serial bus, USB) interface 130, a charge management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, keys 190, a motor 191, an indicator 192, a camera 193, a display 194, and a subscriber identity module (subscriber identification module, SIM) card interface 195, etc. The sensor module 180 may include a pressure sensor 180A, a gyro sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, and the like.

It should be understood that the structure illustrated in the embodiments of the present invention is not limited to the specific embodiment of the mobile phone 100. In other embodiments of the present application, the handset 100 may include more or fewer components than shown, or certain components may be combined, or certain components may be split, or different arrangements of components may be provided. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The processor 110 may include one or more processing units, such as: the processor 110 may include an Application Processor (AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), a controller, a video codec, a digital signal processor (digital signal processor, DSP), a Baseband Processor (BP), and/or a neural network processor (neural-network processing unit, NPU), etc. Wherein the different processing units may be separate devices or may be integrated in one or more processors.

In the embodiment of the present application, the mobile phone 100 may implement switching between different standard networks by using a baseband processor included in the processor 110, record, by using the baseband processor, information of registration failure of the mobile phone 100 and information of switching networks, and when a network switching record including the information of registration failure and the information of switching networks meets a preset condition, the baseband processor may not execute an operation of switching networks in a preset time period.

It will be appreciated that the baseband processor may also be configured to determine the mobile access mode currently supported by the handset 100, e.g., the baseband processor may determine whether the mobile access mode currently supported by the handset 100 is one of the three NR SA, NSA and LTE. Here, NR SA means 5G (new generation radio access technology (new radio access technology, NR)) independent networking (SA), NSA means Non-independent Networking (NSA), and LTE 4G long term evolution (Long Term Evolution, LTE).

A memory may also be provided in the processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may hold instructions or data that the processor 110 has just used or recycled. If the processor 110 needs to reuse the instruction or data, it can be called directly from the memory. Repeated accesses are avoided and the latency of the processor 110 is reduced, thereby improving the efficiency of the system.

The charge management module 140 is configured to receive a charge input from a charger. The charger can be a wireless charger or a wired charger. In some wired charging embodiments, the charge management module 140 may receive a charging input of a wired charger through the USB interface 130.

The power management module 141 is used for connecting the battery 142, and the charge management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and/or the charge management module 140 to power the processor 110, the internal memory 121, the display 194, the camera 193, the wireless communication module 160, and the like. The power management module 141 may also be configured to monitor battery capacity, battery cycle number, battery health (leakage, impedance) and other parameters.

The wireless communication function of the mobile phone 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the handset 100 may be used to cover a single or multiple communication bands. Different antennas may also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed into a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a solution for wireless communication including 2G/3G/4G/5G, etc. applied to the handset 100.

The wireless communication module 160 may provide solutions for wireless communication including wireless local area network (wireless local area networks, WLAN) (e.g., wireless fidelity (wireless fidelity, wi-Fi) network), bluetooth (BT), global navigation satellite system (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field wireless communication technology (near field communication, NFC), infrared technology (IR), etc. applied to the handset 100.

The mobile phone 100 implements display functions through a GPU, a display 194, an application processor, and the like. The GPU is a microprocessor for image processing, and is connected to the display 194 and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. Processor 110 may include one or more GPUs that execute program instructions to generate or change display information.

The display screen 194 is used to display images, videos, and the like. The display 194 includes a display panel. In some embodiments, the cell phone 100 may include 1 or N display screens 194, N being a positive integer greater than 1.

The mobile phone 100 may implement photographing functions through an ISP, a camera 193, a video codec, a GPU, a display 194, an application processor, and the like.

The camera 193 is used to capture still images or video. In some embodiments, the cell phone 100 may include 1 or N cameras 193, N being a positive integer greater than 1.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to extend the memory capabilities of the handset 100. The external memory card communicates with the processor 110 through an external memory interface 120 to implement data storage functions. For example, files such as music, video, etc. are stored in an external memory card.

The internal memory 121 may be used to store computer executable program code including instructions. The internal memory 121 may include a storage program area and a storage data area. The processor 110 performs various functional applications and data processing of the mobile phone 100 by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor.

The handset 100 may implement audio functions through an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, an application processor, and the like. Such as music playing, recording, etc.

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

The speaker 170A, also referred to as a "horn," is used to convert audio electrical signals into sound signals. The handset 100 may listen to music, or to hands-free calls, through the speaker 170A.

A receiver 170B, also referred to as a "earpiece", is used to convert the audio electrical signal into a sound signal. When the handset 100 is answering a telephone call or voice message, the voice can be received by placing the receiver 170B close to the human ear.

Microphone 170C, also referred to as a "microphone" or "microphone", is used to convert sound signals into electrical signals. When making a call or transmitting voice information, the user can sound near the microphone 170C through the mouth, inputting a sound signal to the microphone 170C. The handset 100 may be provided with at least one microphone 170C. In other embodiments, the mobile phone 100 may be provided with two microphones 170C, and may implement a noise reduction function in addition to collecting sound signals. In other embodiments, the mobile phone 100 may further be provided with three, four or more microphones 170C to collect sound signals, reduce noise, identify the source of sound, implement directional recording, etc.

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

The pressure sensor 180A is used to sense a pressure signal, and may convert the pressure signal into an electrical signal. In some embodiments, the pressure sensor 180A may be disposed on the display screen 194.

The gyro sensor 180B may be used to determine the motion gesture of the cell phone 100.

The air pressure sensor 180C is used to measure air pressure. In some embodiments, the handset 100 calculates altitude from the barometric pressure value measured by the barometric pressure sensor 180C, aiding in positioning and navigation.

The magnetic sensor 180D includes a hall sensor.

The acceleration sensor 180E can detect the magnitude of acceleration of the mobile phone 100 in various directions (typically three axes).

A distance sensor 180F for measuring a distance.

The proximity light sensor 180G may include for example a Light Emitting Diode (LED) and a light detector,

the ambient light sensor 180L is used to sense ambient light level.

The fingerprint sensor 180H is used to collect a fingerprint.

The temperature sensor 180J is for detecting temperature.

The touch sensor 180K, also referred to as a "touch device". The touch sensor 180K may be disposed on the display screen 194, and the touch sensor 180K and the display screen 194 form a touch screen, which is also called a "touch screen".

The bone conduction sensor 180M may acquire a vibration signal.

The keys 190 include a power-on key, a volume key, etc. The keys 190 may be mechanical keys. Or may be a touch key. The handset 100 may receive key inputs, generating key signal inputs related to user settings and function control of the handset 100.

The motor 191 may generate a vibration cue. The motor 191 may be used for incoming call vibration alerting as well as for touch vibration feedback.

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

The SIM card interface 195 is used to connect a SIM card. The SIM card may be inserted into the SIM card interface 195 or removed from the SIM card interface 195 to enable contact and separation with the handset 100.

The network switching method of the mobile phone 100 of the present application will be described in detail with reference to fig. 3 and 4 based on the hardware configuration of the mobile phone 100 shown in fig. 2.

Fig. 3 shows a scenario diagram of a network handover between a mobile phone 100 and a base station 200, the base station 200 of fig. 3 providing a 3G network and a 4G network. Fig. 4 shows an interaction diagram of network handover between the mobile phone 100 and the base station 200, and the network handover method described in fig. 4 may be implemented by executing a related program by a baseband processor of the processor 110 of the mobile phone 100. The mobile phone 100 in fig. 3 and 4 may be using a roaming service and the mobile phone 100 may be in an Idle state (Idle state), i.e. the mobile phone 100 has not established a connection with any network, in which Idle state the mobile phone 100 may send a connection request to the base station 200 to access the network. As shown in fig. 4, the network switching method for a mobile phone provided in the root application embodiment includes the following steps.

S401: attempting to register and access the 4G network.

In an embodiment of the present application, the mobile phone 100 may be in an idle state, at which time, the mobile phone 100 may establish an RRC Connection (Radio Resource Control Connection ) with the 4G network, and the process includes: the mobile phone 100 sends RRC Connection Request (Radio Resource Control Connection, radio resource control Connection request) to the 4G network through the base station 200, and this request is used to establish an RRC Connection, after which the mobile phone 100 may receive RRC Connection Setup (Radio Resource Control Setup, radio resource control establishment) from the 4G network, which indicates that an RRC Connection is established between the mobile phone 100 and the 4G network.

S402: and determining that the 4G network registration fails.

In an embodiment of the present application, determining that the 4G network registration fails by the mobile phone 100 may include: the rejection of the mobile phone 100 by the 4G network or the weak signal between the mobile phone 100 and the 4G network results in a registration failure of the mobile phone 100.

In the embodiment of the present application, taking the case that the mobile phone 100 is denied access by the 4G network as an example, after the mobile phone 100 establishes an RRC Connection with the 4G network through step S401, the mobile phone 100 may send an Attach Request (Attach Request) message to the 4G network through the base station 200, where the Attach Request is used for the mobile phone 100 to reside in the 4G cell of the base station 200, that is, the mobile phone 100 registers and may use the 4G network; since the communication carrier providing the roaming service only allows the mobile phone 100 using the roaming service to register to access the 3G network, the mobile phone 100 may receive a message of Attach Reject (Attach Reject), and the message may carry, for example: a cause value of "Roaming not allowed in this tracking area (the tracking area inhibits roaming)".

In the embodiment of the present application, the reason why the mobile phone 100 is denied access by the 4G network may be that after the mobile phone 100 establishes an RRC Connection with the 4G network through step S401, the mobile phone 100 may send a tracking area update Request (Tracking Area Update Request, TAU Request) message to the 4G network through the base station 200, where one tracking area may include a plurality of cells, and the tracking area update Request is used when the cell where the mobile phone 100 resides changes, that is, when the location of the mobile phone 100 changes, the tracking area needs to be updated to ensure that the mobile phone 100 may switch the residing cell in time. Since a communication carrier providing a roaming service only allows a mobile phone 100 using the roaming service to register to access a 3G network, when the location of the mobile phone 100 is changed, for example: when the mobile phone 100 enters another 4G cell from one 4G cell, the mobile phone 100 receives a tracking area update Reject (Tracking Area Update Reject, TAU Reject) message even if the mobile phone 100 transmits a TAU Request to the 4G network through the base station 200.

In the embodiment of the present application, the reason why the mobile phone 100 is denied access by the 4G network may be that in the process that the mobile phone 100 establishes the RRC Connection with the 4G network through step S401, besides the mobile phone 100, there are also messages that multiple user equipments request network resources from the base station 200 at the same time, at this time, mutual interference may occur between the multiple user equipments, which causes the base station 200 to Fail to identify the signal sent by the mobile phone 100, at this time, the mobile phone 100 will not acquire the message that requests network resources successfully from the base station 200, and the reason why the mobile phone 100 is denied access by the 4G network may be referred to as the Rach Fail (Random Access Channel Fail, random access channel failure).

S403: storing the information of registration failure in a network switching record;

in the embodiment of the present application, a preset table may be preset in a storage area of the mobile phone 100, the mobile phone 100 may record information of registration failure to the preset table in the storage area of the mobile phone 100, so as to form a network switching record, where fields of the network switching record may correspond to contents included in the information of registration failure one by one. The information of registration failure may include: network frequency point information, occurrence time of network registration failure, type of network registration failure. The network frequency point information is used to identify the network frequency band of the 4G network that the handset 100 attempts to register and access, such as: 2000MHz to 2500MHz (Mega Hertz ). The occurrence time of the network registration failure is used for recording the time when the mobile phone 100 determines the network registration failure, for example: 11:25:26.815, 11 min 26 sec 815 ms; the type of network registration failure is used to indicate that the mobile phone 100 determines the reason for the network registration failure, such as: "0" means Attacht project; "1" means TAU project; "2" means RACH Fail.

S404: registering and accessing the 3G network.

In this embodiment of the present application, since the communication carrier only allows the mobile phone 100 using the roaming service to access the 3G network, after the mobile phone 100 fails to attempt to register and access the 4G network, the mobile phone 100 may register and access the 3G network, that is, the mobile phone 100 may reside in the 3G cell of the base station 200, and the user may use the 3G network through the mobile phone 100.

S405: receiving cell switch command sent by base station 200

In the embodiment of the present application, in the case where the mobile phone 100 remains connected to the 3G network, the base station 200 may send a cell switching command to the mobile phone 100, where the cell switching command may instruct the mobile phone 100 to perform cell switching. The cell switch command is used for switching the mobile phone 100 from the 3G cell of the resident base station 200 to the 4G cell of the base station 200.

In the embodiment of the present application, in the case where the mobile phone 100 remains connected to the 3G network, the base station 200 may also send a redirection command to the mobile phone 100, that is, the base station 200 sends the information of the 4G cell to the mobile phone 100, and the mobile phone 100 re-initiates the access according to the information of the 4G cell.

S406: and storing the information of the switching network in a network switching record.

In the embodiment of the present application, the mobile phone 100 may record the information of the handover network corresponding to the cell handover command or the redirection command to the network handover record of the preset table in the storage area of the mobile phone 100, where the information of the handover network may include: location information, type of network handover command, and time of occurrence of network handover.

Here, the location information may be LAC (Location Area Code, area code) of the base station 200 for determining the area of the base station 200, and the base stations 200 located in different areas may belong to different communication carriers. The types of network handover commands may include: "0" means cell reselection; "1" means a cell handover; "2" means redirection. The occurrence time of network switching is used for recording the occurrence time of attempting to register and access the 4G network when the mobile phone 100 receives the network switching command sent by the base station 200.

In the embodiment of the present application, table 1 shows a network switching record stored in a preset table in a storage area of the mobile phone 100, and contents of the network switching record in table 1 include: in step S403, the mobile phone 100 performs information of registration failure to attempt registration and access the 4G network, and in step S406, the mobile phone 100 switches the switching network of the 4G network from the 3G network.

The network switch record with sequence number 1 shown in table 1, wherein the network frequency point information: 2325 indicates that the network band of the mobile phone 100 attempting to register and access the 4G network is 2325MHz; the occurrence time of network registration failure: 11:24:19.369 represents that the time for which the mobile phone 100 receives the network registration failure is 11 minutes, 19 seconds and 369 milliseconds; network access failure type: 1 indicates that the network registration failure type determined by the mobile phone 100 is TAU Reject, that is, the mobile phone 100 cannot update the tracking area corresponding to the cell where the mobile phone 100 resides. Position information: LAC 0001 indicates that the area where the base station 200 is located is an area corresponding to LAC 0001; type of handover of network: 2 represents a redirection; the time of occurrence of the switching network: 11:25:25:897 represents the time of occurrence of network switching of the mobile phone 100 at 11 minutes 25 seconds 897 milliseconds.

TABLE 1

S407: and determining whether the network switching record meets the preset condition and the mobile phone 100 and the 3G network are in a connection state.

In the embodiment of the present application, the preset conditions may include: the number of network switching records in a preset table in the memory area of the mobile phone 100 is greater than or equal to a preset number threshold (for example, 3); the time difference between the occurrence time of the network registration failure contained in the first record and the last record in the preset table exceeds a preset duration (for example, 5 minutes), and the content of the location information field in the network handover record in the preset table is the same.

In this embodiment of the present application, if the network switching record in the preset table meets the preset condition, the mobile phone 100 executes step S408, and the mobile phone 100 does not execute the operation of switching the 4G network in the preset time period, so that the mobile phone 100 always remains connected to the 3G network in the preset time period. Otherwise, the mobile phone 100 returns to step S401, and the mobile phone 100 continues to attempt registration and access to the 4G network.

S408: and not executing the cell switching command in a preset time period, and maintaining the connection with the 3G network.

In this embodiment of the present application, the preset time period may be preset in a storage area of the mobile phone 100, for example: the preset time period may be set to 2 hours. If the mobile phone 100 is in a state of being connected to the 3G network within a preset period of time, the mobile phone 100 may ignore the cell handover command transmitted by the base station 200, so that the mobile phone 100 may be stably connected to the 3G network within the preset period of time.

In the embodiment of the present application, if the base station 200 sends a redirection command to the mobile phone 100, the mobile phone 100 may ignore the redirection command sent by the base station 200 in a preset time period, so that the mobile phone 100 may be stably connected to the 3G network in the preset time period.

In this embodiment of the present application, when the mobile phone 100 does not execute the cell switching command within the preset time period, the mobile phone 100 may also empty the network switching record in the preset table, so that after the preset time period passes, the mobile phone 100 may restart from step 401, try to register and access the 4G network again.

In another embodiment of the present application, if the mobile phone 100 successfully registers and accesses the 4G network, the mobile phone 100 may also empty the network switching record in the preset table until the mobile phone 100 is rejected by the 4G network again, and the mobile phone 100 may execute the method from step S401 to step S408 described in fig. 4.

It can be understood that in the embodiment of the present application, there is no sequence between step S407 and step S408 in fig. 3 and steps S401 to S406, that is, during the process of attempting to access the 4G network and switching from the 3G network to the 4G network by the mobile phone 100, the mobile phone 100 may execute step S407 and step S408 at any time to determine whether the network switching record in the preset table meets the preset condition.

The values included in the network switching schemes described in fig. 3 and 4 above are exemplary, and other values may be used to represent the values in the embodiments of the present application.

The above-described fig. 3 and 4 describe a method of performing network handover between the mobile phone 100 and the base station 200. The following describes a method for performing network handover between the mobile phone 100 and the base station 200 according to another embodiment of the present application through fig. 5 and fig. 6, which is different from the network handover scheme described in fig. 3 and fig. 4 in that, in fig. 5 and fig. 6, the mobile phone 100 performs no cell handover command or redirection command for a preset period of time by turning off the 4G function, and maintains connection with the 3G network, and the network handover scheme includes:

s601: attempting to register and access the 4G network.

Step S601 here is similar to step S401 of fig. 4, the mobile phone 100 may be in an idle state, and at this time, the mobile phone 100 may establish an RRC Connection with the 4G network.

S602: and determining that the 4G network registration fails.

Step S602 herein, similar to step S402 of fig. 4, the mobile phone 100 determining that the 4G network registration fails may include: the rejection of the mobile phone 100 by the 4G network or the weak signal between the mobile phone 100 and the 4G network results in a registration failure of the mobile phone 100.

S603: and saving the information of registration failure in the network switching record.

Step S603 here is similar to step S403 of fig. 4, and in the embodiment of the present application, the mobile phone 100 may record the information of the registration failure to a preset table in the storage area of the mobile phone 100, to form a network handover record.

S604: registering and accessing the 3G network.

Step S604 herein is similar to step S404 of fig. 4, and in the embodiment of the present application, after the mobile phone 100 fails to attempt to register and access the 4G network, the mobile phone 100 may register and access the 3G network.

S605: and receiving a cell switching command sent by the base station 200.

Here, step S605 is similar to step S405 of fig. 4, and in the embodiment of the present application, in the case where the mobile phone 100 remains connected to the 3G network, the base station 200 may transmit a cell handover command or a redirection command to the mobile phone 100.

S606: and storing the information of the switching network in a network switching record.

Step S606 here is similar to step S406 of fig. 4, and in the embodiment of the present application, the mobile phone 100 may record the information of switching networks to the network switching record of the preset table in the storage area of the mobile phone 100.

S607: and determining whether the network switching record meets the preset condition and the mobile phone 100 and the 3G network are in a connection state.

Here, step S607 is similar to step S407 of fig. 4, in this embodiment of the present application, if the network switching record in the preset table meets the preset condition, the mobile phone 100 performs step S608, and the mobile phone 100 does not perform the operation of switching the 4G network in the preset period, so that the mobile phone 100 remains connected to the 3G network all the time in the preset period. Otherwise, the mobile phone 100 returns to step S601, and the mobile phone 100 continues to attempt registration and access to the 4G network.

S608: and closing the 4G function within a preset time period, and maintaining connection with the 3G network.

In this embodiment of the present application, the preset time period may be preset in a storage area of the mobile phone 100, for example: the preset time period may be set to 2 hours. In the preset time period, the mobile phone 100 may also switch off the 4G function of the mobile phone 100, so that the mobile phone 100 may be stably connected to the 3G network in the preset time period.

The following describes another method for performing network handover between the mobile phone 100 and the base station 200 according to the embodiment of the present application through fig. 7 and fig. 8, which is different from the network handover scheme described in fig. 3 and fig. 4 in that, in fig. 7 and fig. 8, after the mobile phone 100 registers and accesses the 3G network, the mobile phone 100 enters an idle state; the mobile phone 100 may attempt to switch to the 4G network by triggering a cell reselection command; in the case that the preset condition is met, the mobile phone 100 may limit measurement of signal quality to the 4G cell, and maintain connection with the 3G network, where the network switching scheme includes:

s801: attempting to register and access the 4G network.

Here, step S801 is similar to step S401 of fig. 4, the mobile phone 100 may be in an idle state, and at this time, the mobile phone 100 may establish an RRC Connection with the 4G network.

S802: and determining that the 4G network registration fails.

Here, step S802 is similar to step S402 of fig. 4, and determining that the 4G network registration fails by the mobile phone 100 may include: the rejection of the mobile phone 100 by the 4G network or the weak signal between the mobile phone 100 and the 4G network results in a registration failure of the mobile phone 100.

S803: storing the information of registration failure in a network switching record;

here, step S803 is similar to step S403 of fig. 4, in the embodiment of the present application, the preset table may be preset in the storage area of the mobile phone 100, and the mobile phone 100 may record the registration failure information to the preset table in the storage area of the mobile phone 100, to form a network switching record.

S804: registering and accessing the 3G network.

Step S804 is similar to step S404 of fig. 4, and in the embodiment of the present application, after the mobile phone 100 fails to attempt to register and access the 4G network, the mobile phone 100 may register and access the 3G network.

S805: triggering a cell reselection command.

In the embodiment of the present application, if after the mobile phone 100 registers and accesses the 3G network, the mobile phone 100 enters the idle state again, the mobile phone 100 may trigger a cell reselection command, that is, the mobile phone 100 switches to a cell with good signal quality by measuring the signal quality of the 3G cell and the neighboring 4G cell of the resident base station 200. That is, the mobile phone 100 performs handover from the 3G network to the 4G network by triggering a cell reselection command.

S806: and storing the information of the switching network in a network switching record.

Step S806 here is similar to step S406 of fig. 4, and in the embodiment of the present application, the mobile phone 100 may record the information of switching networks to the network switching record of the preset table in the storage area of the mobile phone 100.

S807: it is determined whether the network switching record satisfies a preset condition and the mobile phone 100 is in an idle state.

Here, step S807 is similar to step S407 of fig. 4, in this embodiment, if the network switching record in the preset table satisfies the preset condition, the mobile phone 100 performs step S808, and the mobile phone 100 does not perform the operation of switching the 4G network in the preset period, so that the mobile phone 100 remains connected to the 3G network throughout the preset period. Otherwise, the mobile phone 100 returns to step S801, and the mobile phone 100 continues to attempt registration and access to the 4G network.

S808: and limiting the measurement to the 4G network in a preset time period, and maintaining the connection with the 3G network.

In this embodiment of the present application, the preset time period may be preset in a storage area of the mobile phone 100, for example: the preset time period may be set to 2 hours. In the preset time period, if the mobile phone is in an idle state, the mobile phone 100 can limit the measurement of signal quality of the adjacent 4G cell, so that the mobile phone 100 cannot execute the cell reselection command, and the mobile phone 100 can be stably connected with the 3G network in the preset time period.

A method for performing network handover between the mobile phone 100 and the base station 200 according to another embodiment of the present application is described below with reference to fig. 9 and 10, and is different from the network handover scheme described in fig. 3 and 4 in that the base station 200 of fig. 9 provides a 4G network and a 5G network, and the network handover scheme includes:

s1001: attempting to register and access the 5G network.

Here, step S1001 is similar to step S401 of fig. 4, the mobile phone 100 may be in an idle state, and at this time, the mobile phone 100 may establish an RRC Connection with the 5G network.

S1002: and determining that the 5G network registration fails.

Here, step S1002 is similar to step S402 of fig. 4, and the determining that the 4G network registration fails by the mobile phone 100 may include: the rejection of the mobile phone 100 by the 5G network or the weak signal between the mobile phone 100 and the 5G network results in a registration failure of the mobile phone 100.

S1003: and saving the information of registration failure in the network switching record.

Here, step S1003 is similar to step S403 of fig. 4, in the embodiment of the present application, the preset table may be preset in the storage area of the mobile phone 100, and the mobile phone 100 may record the registration failure information to the preset table in the storage area of the mobile phone 100, to form a network switching record.

S1004: registering and accessing the 4G network.

Step S1004 herein is similar to step S404 of fig. 4, and in the embodiment of the present application, after the mobile phone 100 fails to attempt to register and access the 5G network, the mobile phone 100 may register and access the 4G network.

S1005: and receiving a cell switching command sent by the base station 200.

Here, step S1005 is similar to step S405 of fig. 4, and in the embodiment of the present application, in the case where the mobile phone 100 remains connected to the 4G network, the base station 200 may transmit a cell handover command or a redirection command to the mobile phone 100.

S1006: and storing the information of the switching network in a network switching record.

Step S1006 here is similar to step S406 of fig. 4, and in the embodiment of the present application, the mobile phone 100 may record the information of switching networks to the network switching record of the preset table in the storage area of the mobile phone 100.

S1007: and determining whether the network switching record meets the preset condition and the mobile phone 100 and the 4G network are in a connection state.

Here, step S1007 is similar to step S407 of fig. 4, in this embodiment, if the network switching record in the preset table meets the preset condition, the mobile phone 100 performs step S1008, and the mobile phone 100 does not perform the operation of switching the 5G network in the preset period, so that the mobile phone 100 remains connected to the 4G network all the time in the preset period. Otherwise, the mobile phone 100 returns to step S1001, and the mobile phone 100 continues to attempt registration and access to the 5G network.

S1008: and not executing the cell switching command in a preset time period, and maintaining the connection with the 4G network.

Step S1008 herein is similar to step S408 in fig. 4, and in this embodiment of the present application, the preset time period herein may be preset in the storage area of the mobile phone 100, for example: the preset time period may be set to 2 hours. If the mobile phone 100 is in a state of being connected to the 4G network within a preset period of time, the mobile phone 100 may ignore a cell handover command or a redirection command sent by the base station 200, so that the mobile phone 100 may be stably connected to the 4G network within the preset period of time.

It will be appreciated that the mobile phone 100 may also adopt a method similar to step S608 of fig. 6, by turning off the 5G function of the mobile phone 100, so that the mobile phone 100 may be stably connected to the 4G network for a preset period of time.

In the embodiment of the present application, the network switching method of the mobile phone 100 using the roaming service is described by using fig. 4, for step S407, if the network switching records in the preset table are shown in table 2, the content included in the location information fields in the records with the sequence numbers 2 and 3 are respectively lac:0001 and lac:0002, that is, the location information in the two adjacent records is different, which indicates that the location of the mobile phone 100 changes in real time, and the mobile phone 100 may be located in the coverage areas of the base stations 200 of different communication operators. The mobile phone 100 may start from the next record of the adjacent records with different contents contained in the location information field, empty the previous record, and avoid that the mobile phone 100 does not perform the operation of switching the 4G network in the coverage area of the base station 200 of the communication carrier that allows the mobile phone 100 to access the 4G network by the scheme of fig. 4.

TABLE 2

Having described the network switching method of the mobile phone 100 using the roaming service through fig. 3 and 4, the network switching method of the mobile phone 100 in case that the network signal is bad is described as follows. In this embodiment of the present application, unlike the network handover method of the mobile phone 100 using the roaming service described in fig. 4, in comparison with step S403, in the case that the network signal is not good, the information of the registration failure recorded in the preset table by the mobile phone 100 is different, as shown in table 3, the network access failure type of the preset table includes a value of "3", which indicates that the S criterion is not satisfied, where the S criterion means that the signal quality of the cell of the 4G network to which the mobile phone 100 attempts to register and access does not satisfy the access condition, where the signal quality may be RSRP (Reference Signal Receiving Power, reference signal received power) of the cell of the 4G network, which is used to represent the wireless signal strength of the cell of the 4G network.

TABLE 3 Table 3

In this embodiment of the present application, the difference between the network switching method of the mobile phone 100 using the roaming service described in fig. 4 and the network switching method of the mobile phone 100 is that, in comparison with step S408, in the case that the network signal is poor, the duration of the preset time period of the mobile phone 100 may be shorter, for example: and 1 hour. Because the network signal is not good and can be recovered in time, a preset time period with a short duration can be set in the mobile phone 100, so as to avoid that the mobile phone 100 is in a state of not executing the operation of switching the 4G network for a long time, so that after the network signal of the 4G network is recovered, the mobile phone 100 cannot switch to the 4G network in time.

It will be understood that, although the terms "first," "second," etc. may be used herein to describe various features, these features should not be limited by these terms. These terms are used merely for distinguishing and are not to be construed as indicating or implying relative importance. For example, a first feature may be referred to as a second feature, and similarly a second feature may be referred to as a first feature, without departing from the scope of the example embodiments.

Furthermore, various operations will be described as multiple discrete operations, in a manner that is most helpful in understanding the illustrative embodiments; however, the order of description should not be construed as to imply that these operations are necessarily order dependent, and that many of the operations be performed in parallel, concurrently or with other operations. Furthermore, the order of the operations may also be rearranged. When the described operations are completed, the process may be terminated, but may also have additional operations not included in the figures. The processes may correspond to methods, functions, procedures, subroutines, and the like.

References in the specification to "one embodiment," "an illustrative embodiment," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may or may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature is described in connection with a particular embodiment, it is within the knowledge of one skilled in the art to affect such feature in connection with other embodiments, whether or not such embodiment is explicitly described.

The terms "comprising," "having," and "including" are synonymous, unless the context dictates otherwise. The phrase "A/B" means "A or B". The phrase "a and/or B" means "(a), (B) or (a and B)".

As used herein, the term "module" may refer to, be part of, or include: a memory (shared, dedicated, or group) for running one or more software or firmware programs, an Application Specific Integrated Circuit (ASIC), an electronic circuit and/or processor (shared, dedicated, or group), a combinational logic circuit, and/or other suitable components that provide the described functionality.

In the drawings, some structural or methodological features may be shown in a particular arrangement and/or order. However, it should be understood that such a particular arrangement and/or ordering is not required. Rather, in some embodiments, these features may be described in a different manner and/or order than shown in the illustrative figures. Additionally, the inclusion of a structural or methodological feature in a particular drawing does not imply that all embodiments need to include such feature, and in some embodiments may not be included or may be combined with other features.

The embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the application of the technical solution of the present application is not limited to the applications mentioned in the embodiments of the present application, and various structures and modifications can be easily implemented with reference to the technical solution of the present application, so as to achieve the various beneficial effects mentioned herein. Various changes, which may be made by those of ordinary skill in the art without departing from the spirit of the present application, are intended to be covered by the claims herein.

Claims

1. A network switching method for a user equipment, comprising:

receiving a network connection command, wherein the network connection command is used for indicating that the user equipment is connected to a first network of first network equipment;

and under the condition that the user equipment is connected with the first network through the first network equipment and the connection time and the connection times meet the preset conditions, the network connection command is not executed within a preset time period.

2. The method of claim 1, wherein the preset conditions include:

the number of times that the user equipment has connected to the first network through the first network equipment exceeds a preset number threshold, and the time difference between the connection time of the user equipment to connect to the first network through the first network equipment for the first time and the connection time of the user equipment to connect to the first network through the first network equipment for the last time is smaller than the preset duration.

3. The method of claim 1, wherein the user device is connected to a second network prior to the receiving a network connection command, and wherein the network connection command comprises at least one of a cell handover command or a redirection command sent by the second network; and is also provided with

The not executing the network connection command for a preset period of time includes:

the user equipment maintains a connection with the second network.

4. The method of claim 1, wherein the user device is in an idle state prior to the receiving a network connection command, and wherein the network connection command comprises a user device generated cell reselection command; and is also provided with

The not executing the network connection command for a preset period of time includes: the user equipment remains in at least one of an idle state or the user equipment attempts to connect to a second network.

5. The method of claim 1, wherein not executing the network connection command for the preset period of time comprises:

and closing a connection function supporting the first network.

6. The method of claim 1, further comprising, prior to said receiving a network connect command:

And in case the user equipment has connected to the first network via the first network device, recording the network connection record, the network connection record comprising a connection time of the connection.

7. The method as recited in claim 6, further comprising:

and after the preset time period, clearing the network connection record.

8. The method as recited in claim 6, further comprising:

upon determining that the user equipment is not connected to the first network through the first network device, or

And executing the network connection command under the condition that the user equipment is connected with the first network through the first network equipment and the connection time and the connection times do not meet the preset conditions.

9. The method as recited in claim 8, further comprising:

and after the user equipment is connected to the first network, clearing the network connection record.

10. The method of claim 3 or 4, wherein the first network is a 3G network, the second network is a 4G network or the first network is a 4G network, and the second network is a 5G network.

11. A user device, comprising:

a memory in which instructions are stored, an

A processor for reading and executing instructions in the memory to cause the user equipment to perform the method of any of claims 1-10.

12. A computer-readable storage medium, wherein the computer-readable storage medium contains instructions,

the instructions, when executed by a controller of a user equipment, cause the user equipment to implement the method of any one of claims 1-10.