WO2023274107A1

WO2023274107A1 - Bandwidth switching method and apparatus, device, and readable storage medium

Info

Publication number: WO2023274107A1
Application number: PCT/CN2022/101403
Authority: WO
Inventors: 罗汐
Original assignee: 维沃移动通信有限公司
Priority date: 2021-06-29
Filing date: 2022-06-27
Publication date: 2023-01-05
Also published as: CN113438694B; CN113438694A

Abstract

The present application discloses a bandwidth switching method and apparatus, a device and a readable storage medium, and belongs to the technical field of communications. The method comprises: after a terminal device completes bandwidth switching, detecting a parameter configuration of a first bandwidth in which the terminal device is located, and if the parameter configuration of the first bandwidth is incorrect, sending a switching instruction to the terminal device, causing the terminal device to switch from the first bandwidth whose parameter configuration is incorrect to a second bandwidth.

Description

Bandwidth switching method, device, device and readable storage medium

This application claims the priority of the Chinese patent application submitted to the China Patent Office on June 29, 2021, with the application number 202110740571.9, and the title of the invention is "Bandwidth Switching Method, Device, Equipment, and Readable Storage Medium", the entire content of which is incorporated by reference incorporated in this application.

technical field

The present application belongs to the technical field of communication, and in particular relates to a bandwidth switching method, device, equipment and readable storage medium.

Background technique

With the development of the fifth generation mobile communication technology (5th Generation Mobile Networks, 5G) and the popularization of SA (Stand Alone) network, more and more networks support Bandwidth Part (BWP) switching. In a network that supports BWP switching, the network side device can send switching instructions to the terminal device according to the service requirements of the terminal device, instructing the terminal device to switch to a BWP with different bandwidth, so as to flexibly schedule network resources and reduce the power consumption of the terminal device.

In the prior art, the terminal device directly switches from the current BWP to another BWP after receiving the switching instruction sent by the network side device. In some cases, when the terminal device directly switches from the current BWP to another BWP, there will be a problem of abnormal communication, which will cause the terminal device to fail to communicate normally.

Contents of the invention

The purpose of the embodiments of the present application is to provide a bandwidth switching method, device, device and readable storage medium, which can solve the problem of abnormal communication occurring during the BWP switching process.

In the first aspect, the embodiment of the present application provides a bandwidth switching method, which is applied to a network side device, and the method includes:

After the terminal device completes the bandwidth switching, detecting the parameter configuration of the first bandwidth where the terminal device is located;

In a case where the parameter configuration of the first bandwidth is incorrect, a switching instruction is sent to the terminal device, so that the terminal device is switched from the first bandwidth whose parameter configuration is incorrect to the second bandwidth.

In the second aspect, the embodiment of the present application provides another bandwidth switching method, which is applied to a terminal device, and the method includes:

After the bandwidth switching is completed, detecting the parameter configuration of the first bandwidth where the terminal device is located;

In the case of determining that the parameter configuration of the first bandwidth is wrong, sending a bandwidth exception notification to the network side device;

receiving a switching instruction sent by the network side device after receiving the bandwidth abnormality notification; the switching instruction is used to instruct the terminal device to switch to the second bandwidth;

In response to the switch indication, switch from the first bandwidth to the second bandwidth.

In a third aspect, an embodiment of the present application provides a bandwidth switching device, which includes:

A detection module, configured to detect the parameter configuration of the first bandwidth where the terminal device is located after the terminal device completes bandwidth switching;

A sending module, configured to send a switching instruction to the terminal device when the parameter configuration of the first bandwidth is incorrect, so that the terminal device switches from the first bandwidth whose parameter configuration is incorrect to the second bandwidth.

In a fourth aspect, the embodiment of the present application provides another bandwidth switching device, which includes:

A detection module, configured to detect the parameter configuration of the first bandwidth where the terminal device is located after the bandwidth switching is completed;

A sending module, configured to send a bandwidth exception notification to the network-side device when it is determined that the parameter configuration of the first bandwidth is wrong;

A receiving module, configured to receive a switching instruction sent by the network-side device after receiving the bandwidth abnormality notification; the switching instruction is used to instruct the terminal device to switch to a second bandwidth;

A switching module, configured to switch from the first bandwidth to the second bandwidth in response to the switching instruction.

In the fifth aspect, the embodiment of the present application provides an electronic device, the electronic device includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, and the program or instruction is executed by The processor implements the steps of the method described in the first aspect or the second aspect when executed.

In the sixth aspect, the embodiment of the present application provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the implementation as described in the first aspect or the second aspect is realized. steps of the method.

In the seventh aspect, the embodiment of the present application provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions, so as to implement the first aspect Or the method described in the second aspect.

In this embodiment of the application, after the terminal device completes bandwidth switching, the parameter configuration of the first bandwidth where the terminal device is located is detected, and if the parameter configuration of the first bandwidth is wrong, a switching instruction is sent to the terminal device, so that the terminal device changes from the parameter configuration of the first bandwidth to the terminal device. The wrongly configured first bandwidth is switched to the second bandwidth. After the terminal device completes the bandwidth switching, if it detects that the parameter configuration of the bandwidth is wrong, it can instruct the terminal device to switch to other bandwidth in time, which can prevent the terminal device from continuously using the bandwidth with the wrong parameter configuration for communication, so as to solve the problem that occurs during the bandwidth switching process. The problem of abnormal communication.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will briefly introduce the drawings that need to be used in the descriptions of the embodiments or related technologies. Obviously, the drawings in the following description are the For some embodiments of the application, those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 shows a flowchart of steps of a bandwidth switching method provided by an embodiment of the present invention;

FIG. 2 shows a flowchart of steps of another bandwidth switching method provided by an embodiment of the present invention;

Fig. 3 shows a schematic structural diagram of a bandwidth switching device provided by an embodiment of the present invention;

FIG. 4 shows a schematic structural diagram of another bandwidth switching device provided by an embodiment of the present invention;

FIG. 5 shows a schematic structural diagram of an electronic device provided by an embodiment of the present invention;

FIG. 6 is a schematic diagram of a hardware structure of an electronic device implementing an embodiment of the present application.

specific embodiment

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It should be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application can be practiced in sequences other than those illustrated or described herein, and that references to "first," "second," etc. distinguish Objects are generally of one type, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the specification and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

The bandwidth switching method provided by the embodiment of the present application will be described in detail below through specific embodiments and application scenarios with reference to the accompanying drawings.

Referring to FIG. 1 , it shows a flowchart of steps of a bandwidth switching method provided by an embodiment of the present invention. The method may include:

Step 101. After the terminal device completes bandwidth switching, detect the parameter configuration of the first bandwidth where the terminal device is located.

Step 102. In the case that the parameter configuration of the first bandwidth is wrong, send a switching instruction to the terminal device, so that the terminal device switches from the first bandwidth with wrong parameter configuration to the second bandwidth.

Wherein, the bandwidth switching method may be implemented by a network side device, such as an access network device in a network supporting BWP switching, such as a base station with BWP resource scheduling. Alternatively, the network side device may be a physical device having the functions of core network device and access network device, or the network side device may be composed of access network device and core network device connected by communication. Terminal equipment can also be called user equipment (User Equipment, UE) or mobile equipment ((Mobile Station, MS). Terminal equipment has BWP switching capability, such as mobile phones and tablet computers with BWP switching capability. Terminals with wireless communication functions. The terminal device and the network-side device are connected wirelessly. In order to meet the requirements of high system capacity and high data rate, the network-side device usually needs to support a large bandwidth, such as 100 MHz (Mega Herts, MHz), 200 MHz, and the terminal The device usually does not need to support the same bandwidth as the network side device. For example, the terminal device may only need to support 40MHz, 60MHz and 80MHz bandwidth to meet the communication needs. The network side device can instruct the terminal device according to the business needs of the terminal device Switch to the bandwidth that matches the service requirements, the bandwidth is BWP, to reduce the power consumption and cost of terminal equipment.

In this embodiment, the first bandwidth refers to the bandwidth of the terminal device after the bandwidth switching is completed, and the second bandwidth refers to other bandwidths except the first bandwidth. After the network side device instructs the terminal device to complete the BWP switching, it can detect the first bandwidth after switching. If the detection determines that the parameter configuration of the first bandwidth is incorrect, it will send a switching instruction to the terminal device, instructing the terminal device to switch to a network other than the first bandwidth. A second bandwidth in addition to the bandwidth. Exemplarily, the network side device may provide three types of bandwidths: bandwidth 1, bandwidth 2, and bandwidth 3, where bandwidth 1 is 40 MHz, bandwidth 2 is 60 MHz, and bandwidth 3 is 80 MHz. Assuming that the current bandwidth of the terminal device is bandwidth 1, when the network side device determines that the terminal device needs to switch to bandwidth 2 according to the service requirements of the terminal device, it can send a switching instruction to the terminal device, instructing the terminal device to switch to bandwidth 2. Specifically, the network side device may send a radio resource control (Radio Resource Control, RRC) reconfiguration message or a downlink control information (Downlink Control Information, DCI) to the terminal device, and the RRC reconfiguration message and the DCI include bandwidth 2 Identification information. After receiving the RRC reconfiguration message or DCI sent by the network side device, the terminal device may switch from bandwidth 1 to bandwidth 2 according to the identification information in the RRC reconfiguration message or DCI. At this time, the first bandwidth where the terminal device is currently located is bandwidth 2. After switching to bandwidth 2, the terminal device may send a switching completion notification to the network side device. Correspondingly, after receiving the switching completion notification sent by the terminal device, the network side device can determine that the terminal device has completed the bandwidth switching, and at this time the network side device can start to detect the parameter configuration of the first bandwidth (that is, bandwidth 2), and determine Whether the parameter configuration of the first bandwidth is incorrect. Wherein, the specific manner in which the network side device instructs the terminal device to switch the BWP, and the specific form of the switching completion notification may be set according to requirements, which are not limited in this embodiment.

Optionally, step 102 may be implemented in the following manner:

Method 1: Obtain communication status information with the terminal device;

When it is determined according to the communication status information that the communication is abnormal and the reestablishment of the communication link with the terminal device fails, a handover instruction is sent to the terminal device.

In one embodiment, after the network side device determines that the terminal device has completed bandwidth switching, it can obtain communication status information between the network side device and the terminal device within a preset period of time, and determine that the communication is abnormal according to the communication status information, and communicate with the When the communication link between the terminal devices fails to be re-established, it may be determined that the parameter configuration of the first bandwidth is incorrect, and a switching instruction is sent to the terminal devices. For example, the communication status information may include one or more of radio link failure (Radio Link Failure, RLF) failure, RRC out of sync (out of sync), maximum retransmission times (Max Retransmission Time) and other information. Among them, for the RLF fault, the network side device can monitor the data transmission process between the network side device and the terminal device. After receiving the data sent by the terminal device, it is determined that an RLF fault occurs between the network side device and the terminal device. For the maximum number of retransmissions, if the network side device does not receive the response information sent by the terminal device after sending data to the terminal device each time, it will determine that the data transmission has failed and resend the data to the terminal device. For the same data, if When the number of retransmissions reaches the preset maximum number of retransmissions, it can be determined that a communication failure occurs between the network side device and the terminal device. For RRC out of synchronization, the network side device can monitor the communication process between the network side device and the terminal device at the physical layer of the communication protocol. If RRC out of synchronization is detected, it can be determined that there is communication between the network side device and the terminal device. Fault. The specific process of obtaining communication status information such as RLT failure, maximum number of retransmissions, and RRC out-of-sync can be set according to requirements, which is not limited in this embodiment. In practical applications, the communication status information may include but not limited to information such as RLT failure, maximum number of retransmissions, and RRC out-of-sync.

Exemplarily, the preset time period may be 2 minutes, and the network side device may acquire communication state information within 2 minutes after the BWP handover is completed. For example, after the network side device receives the handover completion notification sent by the terminal device, it can start the timer to start counting. If at least one of RLF failure, maximum number of retransmissions, and RRC out of synchronization is obtained within 2 minutes status information, it can be determined that the communication between the network-side device and the terminal-side settings is abnormal, and the normal communication between the terminal device and the network-side device cannot be performed. The specific duration of the preset time period can be set according to requirements, which is not limited in this embodiment.

Among them, the network side device can determine that the communication is abnormal in one of the RLF failure, the maximum number of retransmissions, and RRC out of synchronization. When the conditions occur at the same time, determine the communication abnormality to more accurately determine the communication abnormal state. At the same time, when the network-side device does not determine that the communication is abnormal within a preset period of time, it may stop obtaining communication status information, so as to stop monitoring the communication status and release monitoring resources. In practical applications, when the network side device communicates with the terminal device, if the communication between the network side device and the terminal device is abnormal, the terminal device can send the network resource to the network side device when it cannot obtain the network resources provided by the network side device. A link re-establishment request is sent to re-establish a communication link with the network side device, such as an RRC link.

In this embodiment, when the network side device determines that the communication is abnormal, it can further monitor the link reconstruction process between the network side device and the terminal device to determine whether the communication link between the network side device and the terminal device is can be built normally. Combining the above example, when the network side device determines that the communication is abnormal, if it receives the link reconstruction request sent by the terminal device, it can start to rebuild the RRC link between the terminal device and the terminal device. If the RRC link cannot be established, it will determine that a link Re-Establishment failure (RRC Re-Establishment failure, RRE) failure. When it is determined that an RRE failure occurs, it can be determined that the terminal device cannot establish a communication connection with the network-side device through the switched first bandwidth (that is, bandwidth 2) after the bandwidth is switched. At this time, the network-side device can determine the parameters of bandwidth 2 Configuration error. The specific rebuilding process of the communication link and the specific method for determining the RRE failure can be set according to requirements, which are not limited in this embodiment.

It should be noted that, after the bandwidth is switched, the network-side device and the terminal device communicate through the current first bandwidth. At this time, if a communication abnormality occurs between the network-side device and the terminal device, the cause of the abnormal communication may also be other reasons. Therefore, the network-side device needs to monitor the communication status within a preset time period after the bandwidth switch is completed. If the communication is abnormal and the link reconstruction fails, it means that the network-side device and the terminal device cannot communicate normally through the first bandwidth after the switch. , the parameter configuration of the first bandwidth after switching is wrong. Conversely, if there is no communication abnormality after the bandwidth switching is completed, or if there is a communication abnormality but no link re-establishment failure, it means that the network-side device and the terminal device can communicate normally through the switched first bandwidth. The first bandwidth after switching is the configured bandwidth.

In this embodiment, when the network side device determines that the parameter configuration of the first bandwidth where the terminal device is currently located is incorrect, it may instruct the terminal device to switch to the second bandwidth, and the second bandwidth is any bandwidth other than the first bandwidth. With reference to the above example, after determining that the parameter configuration of Bandwidth 2 is wrong, the network side device may determine a bandwidth from Bandwidth 1 and Bandwidth 3 other than Bandwidth 2 as the second bandwidth, and send identification information including the second bandwidth to the terminal device RRC reconfiguration message or DCI. Correspondingly, after receiving the RRC reconfiguration message or DCI, the terminal device can switch from the first bandwidth with incorrect parameter configuration to the second bandwidth according to the identification information in the RRC reconfiguration message or DCI, and communicate with the network side through the second bandwidth devices to communicate.

In practical applications, the terminal device directly switches from the current bandwidth to another bandwidth after receiving the switching instruction sent by the network side device. When another bandwidth parameter is incorrectly configured, it may result in the failure of normal communication between the terminal device and the network side device. At this time, if the terminal device cannot switch to other bandwidths in time, the terminal device will always be in a state of abnormal communication. In this embodiment, after the terminal device completes bandwidth switching, the network side device detects the switched bandwidth in time, and after determining that the parameter configuration of the switched bandwidth is wrong, it can instruct the terminal device to switch to another bandwidth in time, which can avoid terminal The device uses the wrong bandwidth for communication for a long time, so that the terminal device can be prevented from being in a communication abnormal state continuously.

Method 2:

In the case of receiving the notification of abnormal bandwidth sent by the terminal device, a switching instruction is sent to the terminal device; wherein, the notification of abnormal bandwidth is sent by the terminal device after the bandwidth switching is completed and the parameter configuration of the first bandwidth is determined to be wrong.

In one embodiment, after the bandwidth switching is completed, the terminal device can obtain the communication status information within a preset period of time, and if it is determined that the communication is abnormal according to the communication status information, if it is determined that the communication with the network side device If the link re-establishment fails, a bandwidth exception notification is sent to the network side device, so as to notify the network side device that the parameter configuration of the bandwidth after switching is wrong.

Wherein, the terminal device may acquire communication state information on the application processor (Application Processor, AP) side and/or the communication processor (Communication Processor, CP) side. For example, the terminal device can obtain the abnormal communication behavior of the application program on the AP side, and if a preset number of application programs have timeout behavior within a preset monitoring time, it is determined that the communication between the terminal device and the network side device is abnormal. Combined with the above example, if the preset number is 3 and the monitoring time is 30 seconds, the terminal device can monitor the application program within 2 minutes after switching to bandwidth 2. If there are more than 3 application programs within 30 consecutive seconds If the program times out, it is determined that the data flow is cut off, and the communication between the terminal device and the network side device is abnormal. On the CP side, the communication state information obtained by the terminal device may also include one or more information of RLF failure, RRC out of synchronization and maximum number of retransmissions. The process for the terminal device to acquire communication state information such as RLF failure, RRC out of synchronization, and maximum retransmission times can be specifically set according to requirements, which is not limited in this embodiment. In practical applications, the communication state information obtained by the terminal device at the AP side and the communication state information obtained from the CP side may include but not limited to the information in the above examples.

In this embodiment, the terminal device may determine that the communication between the terminal device and the network-side device is abnormal according to the communication state information acquired by one or both of the AP side and/or the CP side. With reference to the above example, after receiving the switching instruction sent by the network side device, the terminal device switches from bandwidth 1 (the current first bandwidth) to bandwidth 2 (the first bandwidth after switching), and after the bandwidth switching is completed, the terminal device The communication status information within 2 minutes can also be obtained. If the communication status information such as RLF failure, RRC out-of-sync, maximum number of retransmissions, and data interruption are obtained, it is determined that the communication is abnormal. At this time, the terminal device may send a communication link re-establishment request to the network-side device, requesting to re-establish the communication link with the network-side device. If the communication link fails to be re-established, it is determined that the parameter configuration of the switched bandwidth 2 is incorrect. At this time, the terminal device may send a bandwidth exception notification to the network side device, and notify the network side device that the parameter configuration of bandwidth 2 after switching is wrong. Correspondingly, after receiving the bandwidth exception notification sent by the terminal device, the network side device may determine that the parameter configuration of the first bandwidth where the terminal device is currently located is wrong, and send a switching instruction from the first bandwidth to the second bandwidth to the terminal device.

Wherein, the bandwidth abnormality notification may be sent in the form of Uplink Control Information (UCI). For example, after determining that the parameter configuration of the bandwidth 2 is incorrect, the terminal device may initiate a UCI report, and set an abnormal BWP report indication bit in the UCI information. Correspondingly, after receiving the UCI information, the network-side device can determine that the parameter configuration of bandwidth 2 is wrong according to the abnormality reporting indicator bit in the UCI information, and the specific form of bandwidth exception notification can be set according to requirements, which is not done in this embodiment. limit.

In this embodiment of the present application, both the network side device and the terminal device can obtain communication status information with the terminal device after bandwidth switching is completed, and determine the first bandwidth in the case of abnormal communication and failure of link re-establishment. Parameter configuration error. It can accurately detect whether the parameter configuration of the switched bandwidth is wrong, so that the terminal equipment can quickly switch to the configured bandwidth, thereby preventing the terminal equipment from being in a communication abnormal state for a long time.

It should be noted that after the network-side device instructs the terminal device to switch to the second bandwidth, it can repeatedly perform steps 101 to 102, and judge again whether the parameter configuration of the second bandwidth after switching is wrong, until the terminal device switches to the configuration that is correct. bandwidth, and can communicate with network-side devices normally.

In an embodiment, when the network side device instructs the terminal device to switch from the current first bandwidth to the second bandwidth, it may instruct the terminal device to switch from the first bandwidth to the target bandwidth. The target bandwidth is the bandwidth that the terminal device has switched over and can normally communicate with the network side device through the target bandwidth. In combination with the above example, after the network side device instructs the terminal device to switch to bandwidth 1, if the terminal device can communicate with the network side device normally through bandwidth 1, the network side device can use bandwidth 1 as the target bandwidth and store the relevant information of bandwidth 1. information. After the network side device instructs the terminal device to switch from bandwidth 1 to bandwidth 2, if it determines that the parameter configuration of bandwidth 2 is wrong, it can instruct the terminal device to switch to bandwidth 1, so that the terminal device can communicate with the network side device through the correct configuration of bandwidth 1. communication.

In the embodiment of this application, the network device can pre-determine the correct bandwidth configuration, and after determining that the parameter configuration of the switched bandwidth is wrong, it can instruct the terminal device to switch to the correctly configured bandwidth, which can prevent the terminal device from switching to other parameters again. If the bandwidth is incorrectly configured, the terminal device can quickly switch to the correctly configured bandwidth, and can quickly establish normal communication with the network side device.

Optionally, the method may also include:

If the parameter configuration of the first bandwidth is incorrect, any terminal device is prohibited from switching to the first bandwidth.

In one embodiment, after the network side device determines that the parameter configuration of the first bandwidth where the terminal device is currently located is wrong, it may stop sending switching instructions to other terminal devices to switch to the first bandwidth, so as to prevent other terminal devices from switching to the parameter configuration of the first bandwidth. Misconfigured bandwidth. With reference to the above example, after determining that the parameter configuration of the bandwidth 2 is incorrect, the network side device may add the bandwidth 2 to the forbidden list (forbidden list). At this time, if the network-side device determines that another terminal device needs to switch to bandwidth 2 according to the service requirements of another terminal device, the network-side device can stop sending switching instructions to the other terminal device, so that the other terminal device can keep the bandwidth 2. Change. Alternatively, the network side device may send a switching instruction to switch to bandwidth 3 to the terminal device, instructing another terminal device to switch to bandwidth 3, so that any terminal device may be prohibited from switching to bandwidth 2. At this time, another terminal device can communicate with the network side device through other bandwidths except bandwidth 2 with wrong parameter configuration, which can prevent another terminal device from switching to the bandwidth with wrong parameter configuration, thereby preventing another terminal device from appearing The problem of abnormal communication.

In this embodiment of the application, after the network side device determines that the parameter configuration of the bandwidth is wrong, any terminal device is prohibited from switching to the bandwidth with the wrong parameter configuration, which can prevent other terminal devices from switching to the bandwidth with the wrong parameter configuration, thereby preventing other terminals from The device also has communication abnormalities.

Optionally, after any terminal device is prohibited from switching to the first bandwidth, the method may further include:

Reconfigure the first bandwidth;

Any terminal device is allowed to switch to the reconfigured first bandwidth.

In an embodiment, the network side device may reconfigure the parameters of the first bandwidth after determining that the parameters of the first bandwidth are incorrectly configured. Combining the above examples, after determining that the parameters of bandwidth 2 are incorrectly configured, the network side device can control the subcarrier spacing, transmission time interval (Transmission Time Interval, TTI), system bandwidth, and transmission power control (Transmission Power Control, TPC) of bandwidth 2. and other parameters to reconfigure one or more parameters. After the reconfiguration of Bandwidth 2 is complete, Bandwidth 2 may be released from the forbidden list. At this point, if there is a terminal device that needs to switch to bandwidth 2, the terminal device can be instructed to switch to bandwidth 2, and the step of prohibiting any terminal device from switching to the first bandwidth can be ended. The specific configuration process of the bandwidth parameter can be set according to requirements, which is not limited in this embodiment.

In the embodiment of this application, when the network side device determines that the parameter configuration of the bandwidth is incorrect, it can automatically complete the reconfiguration of the bandwidth, and instruct the terminal device to switch to the reconfigured bandwidth, which can prevent a certain bandwidth from being in the parameter configuration error all the time. state, which can improve bandwidth usage.

To sum up, in this embodiment, after the terminal device completes bandwidth switching, it detects the parameter configuration of the first bandwidth where the terminal device is located, and sends a switching instruction to the terminal device if the parameter configuration of the first bandwidth is wrong, so that the terminal device The device switches from the first bandwidth with incorrect parameter configuration to the second bandwidth. After the terminal device completes the bandwidth switching, if the parameter configuration of the switched bandwidth is detected incorrectly, the terminal device can be instructed to switch to other bandwidth in time, which can prevent the terminal device from continuously using the bandwidth with the wrong parameter configuration for communication, thereby solving the bandwidth switching process The problem of abnormal communication in .

Optionally, the method may also include:

In the case that the parameter configuration of the first bandwidth is wrong, determine the target terminal device; the target terminal device is a terminal device whose bandwidth is the first bandwidth except the terminal device;

A switching instruction is sent to the target terminal device, so that the target terminal device switches from the first bandwidth whose parameters are incorrectly configured to the second bandwidth.

In an embodiment, after determining that the parameter configuration of a certain bandwidth is incorrect, the network side device may determine the terminal device that has switched to the bandwidth, that is, the target terminal device, and instruct the target terminal device to switch to another bandwidth. With reference to the above examples, the network side device may record the switched bandwidth of the terminal device after instructing the terminal device to switch the bandwidth each time. After determining that the parameter configuration of bandwidth 2 (the first bandwidth) is wrong, the network side device can determine other terminal devices that have switched to bandwidth 2, that is, the target terminal device according to the records, and send a switching instruction to the target terminal device switched to bandwidth 2 , instructing the target terminal device to switch to a bandwidth other than bandwidth 2, that is, the second bandwidth.

In this embodiment of the application, after determining that the parameter configuration of the bandwidth is wrong, the network side device can instruct the terminal device that has switched to the bandwidth to switch to another bandwidth, which can prevent other terminal devices from communicating through the bandwidth with the wrong parameter configuration, thereby Avoid other electronic devices in a state of abnormal communication.

Referring to FIG. 2 , it shows a flow chart of steps of another bandwidth switching method provided by an embodiment of the present invention. The method may include:

Step 201, after the terminal device completes bandwidth switching, it detects the parameter configuration of the first bandwidth where the terminal device is located.

In step 202, the terminal device sends a bandwidth exception notification to the network side device when it is determined that the parameter configuration of the first bandwidth is incorrect.

Optionally, step 202 may be implemented in the following manner:

Obtain the communication status information after the bandwidth switching is completed;

If it is determined that the communication is abnormal according to the communication state information, and the communication link with the network side device fails to be reestablished, a bandwidth abnormality notification is sent to the network side device.

Step 203: When receiving the notification of abnormal bandwidth sent by the terminal device, the network side device sends a switching instruction to the terminal device, so that the terminal device switches from the first bandwidth with incorrect parameter configuration to the second bandwidth.

Step 204, the terminal device receives the handover instruction sent by the network side device after receiving the bandwidth abnormality notification.

Wherein, the switching instruction is used to instruct the terminal device to switch to the second bandwidth.

Step 205, the terminal device switches from the first bandwidth to the second bandwidth in response to the switching instruction.

Optionally, the method may also include:

If the switching instruction is not received, switch from the first bandwidth to the third bandwidth; the third bandwidth is the correctly configured bandwidth allocated to the terminal device by the network side device before the terminal device switches to the first bandwidth.

In this embodiment, after the terminal device sends the notification of abnormal bandwidth to the network-side device, if it does not receive the switching instruction sent by the network-side device, it can automatically switch from the first bandwidth to the third bandwidth, and communicate with the network-side device through the third bandwidth. to communicate. With reference to the above example, after the terminal device determines that the parameter configuration of bandwidth 2 (the first bandwidth) is incorrect and sends a bandwidth exception notification to the network-side device, if it does not receive the switching instruction sent by the network-side device within the preset waiting period, , can automatically switch from bandwidth 2 to bandwidth 1, and use bandwidth 1 to communicate with network-side devices. The bandwidth 1 is the correctly configured bandwidth allocated by the network side device to the terminal device before the terminal device switches to the bandwidth 2, that is, the third bandwidth. The terminal device can record the correctly configured bandwidth 1, so as to automatically switch to the correctly configured bandwidth 1 when a bandwidth with incorrect parameter configuration occurs. At the same time, the terminal device can also send an automatic switching notification to the network-side device to notify the network-side device that it has switched to bandwidth 1, so that the network-side device can adjust the bandwidth configuration.

In the embodiment of the present application, after the terminal device sends a notification of abnormal bandwidth to the network-side device, if it does not receive a switching instruction sent by the network-side device, it can automatically switch to the correctly configured bandwidth, so that normal communication can be quickly restored.

Optionally, the method may also include:

The terminal device sends bandwidth information of the third bandwidth to the network side device, where the bandwidth information is used to instruct the network side device to determine that the third bandwidth is the second bandwidth;

When receiving the bandwidth information sent by the terminal device, the network side device determines that the third bandwidth indicated by the bandwidth information is the second bandwidth.

Wherein, the third bandwidth is the correctly configured bandwidth allocated to the terminal device by the network side device before the terminal device switches to the first bandwidth;

In one embodiment, after switching the bandwidth, if the terminal device can communicate normally with the network side device through the switched bandwidth, it can be determined that the switched bandwidth is the bandwidth configured correctly, and the terminal device can store the bandwidth of the correctly configured bandwidth Information, the bandwidth configured correctly is the third bandwidth. After the terminal device switches to a bandwidth whose parameter configuration is incorrect, the terminal device may simultaneously send bandwidth information of a correctly configured third bandwidth when sending a bandwidth exception notification to the network side device. Correspondingly, after receiving the bandwidth information of the third bandwidth, the network side device may determine the third bandwidth indicated by the bandwidth information as the second bandwidth, and send a switching instruction to switch to the second bandwidth to the terminal device. With reference to the above example, after the terminal device switches to bandwidth 1, if it is determined that the parameter configuration of bandwidth 1 is correct, the terminal device may store the identification information of bandwidth 1 and use bandwidth 1 as the third bandwidth. After switching to bandwidth 2, if it is determined that the parameters of bandwidth 2 are incorrectly configured, a bandwidth exception notification including the identification information of bandwidth 1 may be sent to the network side device. Correspondingly, the network-side device may determine that Bandwidth 1 is the second bandwidth according to the identification information of Bandwidth 1, and send a switching instruction including the identification information of Bandwidth 1 to the terminal device, instructing the terminal device to switch to the correctly configured Bandwidth 1.

In the embodiment of the present application, the terminal device may store the configured bandwidth that has been switched, and after switching the bandwidth, if it is determined that the parameter configuration of the switched bandwidth is wrong, it may send the bandwidth information of the correctly configured bandwidth to the network side device, The network-side device instructs the terminal device to switch to the correctly configured bandwidth, so that the terminal device can quickly switch to the correctly configured bandwidth, so that normal communication can be quickly restored.

It should be noted that, in this embodiment, during the switching process of the bandwidth, the judgment of the bandwidth after switching can be independently completed by the terminal equipment, and when the parameter configuration of the bandwidth after judging is wrong, the network side The device sends a bandwidth exception notification to notify the network side that the parameter configuration of the bandwidth after switching is incorrect. Correspondingly, the network side device does not judge whether the bandwidth parameters are configured correctly, and instructs the terminal device to switch to other bandwidths after receiving the bandwidth exception notification sent by the terminal device. Alternatively, the network-side device and the terminal device jointly determine whether the parameter configuration of the switched bandwidth is wrong.

To sum up, in this embodiment, after the bandwidth switching is completed, the terminal device detects the parameter configuration of the first bandwidth where the terminal device is located, and when the terminal device determines that the parameter configuration of the first bandwidth is wrong, it sends the bandwidth In the abnormality notification, the network side device sends a switching instruction to the terminal device in response to the bandwidth abnormality notification, and the terminal device switches from the first bandwidth to the second bandwidth in response to the switching instruction. After the terminal device completes the bandwidth switching, if it detects that the parameter configuration of the bandwidth is wrong, it can instruct the terminal device to switch to other bandwidth in time, which can prevent the terminal device from continuously using the bandwidth with the wrong parameter configuration for communication, so as to solve the problem that occurs during the bandwidth switching process. The problem of abnormal communication.

It should be noted that, the bandwidth switching method provided in the embodiment of the present application may be executed by a bandwidth switching device, or a control module in the bandwidth switching device for executing the bandwidth switching method. In the embodiment of the present application, the bandwidth switching device provided in the embodiment of the present application is described by taking the bandwidth switching method performed by the bandwidth switching device as an example.

Referring to FIG. 3 , it shows a schematic structural diagram of a bandwidth switching device provided by an embodiment of the present invention. The device 300 may include:

The detection module 301 is configured to detect the parameter configuration of the first bandwidth where the terminal device is located after the terminal device completes bandwidth switching;

The sending module 302 is configured to send a switching instruction to the terminal device when the parameter configuration of the first bandwidth is incorrect, so that the terminal device switches from the first bandwidth whose parameter configuration is incorrect to the second bandwidth.

Optionally, the sending module 302 is specifically configured to obtain communication state information with the terminal device; when it is determined that the communication is abnormal according to the communication state information, and the communication link with the terminal device fails to be reestablished, send a message to the terminal device Sending a switching instruction; or, in the case of receiving a bandwidth abnormality notification sent by the terminal device, sending a switching instruction to the terminal device; wherein, the bandwidth abnormality notification is determined by the terminal device after the bandwidth switching is completed, and the parameter configuration of the first bandwidth is incorrect. sent in case.

Optionally, the apparatus 300 may further include: a prohibition module, configured to prohibit any terminal device from switching to the first bandwidth when the parameter configuration of the first bandwidth is wrong.

Optionally, the prohibition module is further configured to reconfigure the first bandwidth; allowing any terminal device to switch to the reconfigured first bandwidth.

Optionally, the sending module 302 is further configured to determine that the third bandwidth indicated by the bandwidth information is the second bandwidth when the bandwidth information sent by the terminal device is received; Before the first bandwidth, the correctly configured bandwidth allocated to the terminal device.

Optionally, the sending module 302 is further configured to determine the target terminal device when the parameter configuration of the first bandwidth is incorrect; the target terminal device is a terminal device other than the terminal device whose bandwidth is the first bandwidth; The terminal device sends a switching instruction, so that the target terminal device switches from the first bandwidth whose parameter configuration is incorrect to the second bandwidth.

To sum up, in this embodiment, after the terminal device completes bandwidth switching, it detects the parameter configuration of the first bandwidth where the terminal device is located, and sends a switching instruction to the terminal device if the parameter configuration of the first bandwidth is wrong, so that the terminal device The device switches from the first bandwidth with incorrect parameter configuration to the second bandwidth. After the terminal device completes the bandwidth switching, if it detects that the parameter configuration of the bandwidth is wrong, it can instruct the terminal device to switch to other bandwidth in time, which can prevent the terminal device from continuously using the bandwidth with the wrong parameter configuration for communication, so as to solve the problem that occurs during the bandwidth switching process. The problem of abnormal communication.

Referring to FIG. 4 , it shows a schematic structural diagram of another bandwidth switching device provided by an embodiment of the present invention. The device 400 may include:

The detection module 401 is configured to detect the parameter configuration of the first bandwidth where the terminal device is located after the bandwidth switching is completed;

A sending module 402, configured to send a bandwidth exception notification to the network side device when it is determined that the parameter configuration of the first bandwidth is wrong;

The receiving module 403 is configured to receive a switching instruction sent by the network side device after receiving the bandwidth abnormality notification; the switching instruction is used to instruct the terminal device to switch to the second bandwidth;

A switching module 404, configured to switch from the first bandwidth to the second bandwidth in response to the switching instruction.

Optionally, the sending module 402 is specifically configured to obtain the communication status information after the bandwidth switching is completed; when it is determined that the communication is abnormal according to the communication status information, and the communication link with the network side device fails to be reestablished, send a message to the network side The device sends a bandwidth exception notification.

Optionally, the switching module 404 is further configured to switch from the first bandwidth to the third bandwidth if the switching instruction is not received; the third bandwidth is the network side device before the terminal device switches to the first bandwidth, which is the terminal The properly configured bandwidth allocated by the device.

Optionally, the sending module 402 is further configured to send bandwidth information of the third bandwidth to the network side device, where the bandwidth information is used to instruct the network side device to determine that the third bandwidth is the second bandwidth; The correctly configured bandwidth allocated to the terminal device before the terminal device switches to the first bandwidth.

To sum up, in this embodiment, after the bandwidth switch is completed, the terminal device detects the parameter configuration of the first bandwidth where the terminal device is located, and the terminal device sends the bandwidth In the abnormality notification, the network side device sends a switching instruction to the terminal device in response to the bandwidth abnormality notification, and the terminal device switches from the first bandwidth to the second bandwidth in response to the switching instruction. After the terminal device completes the bandwidth switching, if it detects that the parameter configuration of the bandwidth is wrong, it can instruct the terminal device to switch to other bandwidth in time, which can prevent the terminal device from continuously using the bandwidth with the wrong parameter configuration for communication, so as to solve the problem that occurs during the bandwidth switching process. The problem of abnormal communication.

The bandwidth switching device in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device may be a mobile electronic device or a non-mobile electronic device. Exemplarily, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a handheld computer, a vehicle electronic device, a wearable device, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a netbook or a personal digital assistant (personal digital assistant). assistant, PDA), etc., non-mobile electronic devices can be servers, network attached storage (Network Attached Storage, NAS), personal computer (personal computer, PC), television (television, TV), teller machine or self-service machine, etc., this application Examples are not specifically limited.

The bandwidth switching device in the embodiment of the present application may be a device with an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in this embodiment of the present application.

The bandwidth switching device provided in the embodiment of the present application can realize various processes realized by the method embodiments in FIG. 1 to FIG. 2 , and details are not repeated here to avoid repetition.

Referring to FIG. 5 , it shows a schematic structural diagram of an electronic device provided by an embodiment of the present invention. The electronic device 500 includes a processor 501, a memory 502, and a program stored in the memory 502 and operable on the processor 501. A program or an instruction, when executed by the processor 501 , implements each process of the foregoing bandwidth switching method embodiment, and can achieve the same technical effect. To avoid repetition, details are not repeated here.

It should be noted that the electronic devices in the embodiments of the present application include the above-mentioned mobile electronic devices and non-mobile electronic devices. Exemplarily, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a handheld computer, a vehicle electronic device, a wearable device, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a netbook or a personal digital assistant (personal digital assistant). assistant, PDA), etc., non-mobile electronic devices can be servers, network attached storage (Network Attached Storage, NAS), personal computer (personal computer, PC), television (television, TV), teller machine or self-service machine, etc., this application Examples are not specifically limited.

The electronic device in this embodiment of the present application may be a device with an operating system. The operating system can be an Android operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

The electronic device 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, and a processor 610, etc. part.

Those skilled in the art can understand that the electronic device 600 can also include a power supply (such as a battery) for supplying power to various components, and the power supply can be logically connected to the processor 610 through the power management system, so that the management of charging, discharging, and function can be realized through the power management system. Consumption management and other functions. The structure of the electronic device shown in FIG. 6 does not constitute a limitation to the electronic device, and the electronic device may include more or fewer components than shown in the figure, or combine some components, or arrange different components, which will not be repeated here. .

Wherein, the processor 610 is configured to detect the parameter configuration of the first bandwidth where the terminal device is located after the terminal device completes bandwidth switching;

When the parameter configuration of the first bandwidth is incorrect, a switching instruction is sent to the terminal device, so that the terminal device switches from the first bandwidth whose parameter configuration is incorrect to the second bandwidth.

Optionally, the processor 610 is specifically configured to obtain communication state information with the terminal device; and when it is determined that the communication is abnormal according to the communication state information and the communication link with the terminal device fails to be reestablished, send a message to the terminal device Sending a switching instruction; or, in the case of receiving a bandwidth abnormality notification sent by the terminal device, sending a switching instruction to the terminal device; wherein, the bandwidth abnormality notification is determined by the terminal device after the bandwidth switching is completed, and the parameter configuration of the first bandwidth is incorrect. sent in case.

In the embodiment of the present application, both the network side device and the terminal device may detect the switched bandwidth after the bandwidth switching is completed, and determine whether the parameter configuration of the switched bandwidth is wrong. Therefore, when the network-side device determines that the parameter configuration of the switched bandwidth is wrong, it can send a switching instruction instructing to switch to another bandwidth, so that the terminal device can quickly switch to the configured bandwidth, thereby preventing the terminal device from being in a communication abnormality for a long time. state.

Optionally, the processor 610 is further configured to prohibit any terminal device from switching to the first bandwidth when the parameter configuration of the first bandwidth is incorrect.

Optionally, the processor 610 is further configured to reconfigure the first bandwidth; allowing any terminal device to switch to the reconfigured first bandwidth.

Optionally, the processor 610 is further configured to, in the case of receiving the bandwidth information sent by the terminal device, determine that the third bandwidth indicated by the bandwidth information is the second bandwidth; Before the first bandwidth, the correctly configured bandwidth allocated to the terminal device.

Optionally, the processor 610 is further configured to determine the target terminal device when the parameter configuration of the first bandwidth is incorrect; the target terminal device is a terminal device other than the terminal device whose bandwidth is the first bandwidth; The terminal device sends a switching instruction, so that the target terminal device switches from the first bandwidth whose parameter configuration is incorrect to the second bandwidth.

In another embodiment, the processor 610 is configured to detect the parameter configuration of the first bandwidth where the terminal device is located after the bandwidth switching is completed;

Optionally, the processor 610 is specifically configured to acquire communication state information after the bandwidth switching is completed;

Optionally, the processor 610 is further configured to switch from the first bandwidth to the third bandwidth if the switching instruction is not received; the third bandwidth is the network side device before the terminal device switches to the first bandwidth, and the terminal device switches to the first bandwidth. The properly configured bandwidth allocated by the device.

Optionally, the processor 610 is further configured to send bandwidth information of the third bandwidth to the network side device, where the bandwidth information is used to instruct the network side device to determine that the third bandwidth is the second bandwidth; The correctly configured bandwidth allocated to the terminal device before the terminal device switches to the first bandwidth.

It should be understood that, in the embodiment of the present application, the input unit 604 may include a graphics processor (Graphics Processing Unit, GPU) 6041 and a microphone 6042, and the graphics processor 6041 is used for the image capture device ( Such as the image data of the still picture or video obtained by the camera) for processing. The display unit 606 may include a display panel 6061, and the display panel 6061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 607 includes a touch panel 6071 and other input devices 6072 . The touch panel 6071 is also called a touch screen. The touch panel 6071 may include two parts, a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, and joysticks, which will not be repeated here. Memory 609 may be used to store software programs as well as various data, including but not limited to application programs and operating systems. The processor 610 may integrate an application processor and a modem processor, wherein the application processor mainly processes operating systems, user interfaces, and application programs, and the modem processor mainly processes wireless communications. It can be understood that the foregoing modem processor may not be integrated into the processor 610 .

The embodiment of the present application also provides a readable storage medium, the readable storage medium stores a program or an instruction, and when the program or instruction is executed by a processor, each process of the above bandwidth switching method embodiment is realized, and the same bandwidth switching method can be achieved. To avoid repetition, the technical effects will not be repeated here.

Wherein, the processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.

The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the above bandwidth switching method embodiment Each process can achieve the same technical effect, so in order to avoid repetition, it will not be repeated here.

It should be understood that the chips mentioned in the embodiments of the present application may also be called system-on-chip, system-on-chip, system-on-a-chip, or system-on-a-chip.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the technical solution of the present application can be embodied in the form of a software product in essence or the part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, disk, CD) contains several instructions to enable a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in various embodiments of the present application.

It should be understood that the embodiments described in the embodiments of the present disclosure may be implemented by hardware, software, firmware, middleware, microcode or a combination thereof. For hardware implementation, modules, units, and subunits can be implemented in one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processor, DSP), digital signal processing equipment (DSP Device, DSPD ), programmable logic device (Programmable Logic Device, PLD), field-programmable gate array (Field-Programmable Gate Array, FPGA), general-purpose processor, controller, microcontroller, microprocessor, for implementing the disclosure other electronic units or combinations thereof. For software implementation, the technologies described in the embodiments of the present disclosure may be implemented through modules (such as procedures, functions, etc.) that execute the functions described in the embodiments of the present disclosure. Software codes can be stored in memory and executed by a processor. Memory can be implemented within the processor or external to the processor.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims

A bandwidth switching method applied to a network side device, comprising:

After the terminal device completes the bandwidth switching, detecting the parameter configuration of the first bandwidth where the terminal device is located;

In a case where the parameter configuration of the first bandwidth is incorrect, a switching instruction is sent to the terminal device, so that the terminal device is switched from the first bandwidth whose parameter configuration is incorrect to the second bandwidth.
The method according to claim 1, wherein the sending a handover instruction to the terminal device in the case of a wrong parameter configuration of the first bandwidth comprises:

Acquiring communication state information with the terminal device; when it is determined according to the communication state information that the communication is abnormal and the communication link with the terminal device fails to be reestablished, sending the switching instructions;

Or, in the case of receiving the bandwidth abnormality notification sent by the terminal device, sending the switching instruction to the terminal device; wherein, the bandwidth abnormality notification is determined by the terminal device after the bandwidth switching is completed. Sent when the parameter configuration of the first bandwidth is wrong.
The method according to claim 1, further comprising:

If the parameter configuration of the first bandwidth is incorrect, any terminal device is prohibited from switching to the first bandwidth.
The method according to claim 3, wherein, after said prohibiting any terminal device from switching to the first bandwidth, further comprising:

reconfiguring the first bandwidth;

Allowing the any terminal device to switch to the reconfigured first bandwidth.
The method according to claim 2, wherein, after receiving the bandwidth exception notification, further comprising:

In a case where the bandwidth information sent by the terminal device is received, determine that the third bandwidth indicated by the bandwidth information is the second bandwidth;

Wherein, the third bandwidth is the correctly configured bandwidth allocated to the terminal device by the network side device before the terminal device switches to the first bandwidth.
The method according to any one of claims 1-5, further comprising:

In the case where the parameter configuration of the first bandwidth is wrong, determine a target terminal device; the target terminal device is a terminal device other than the terminal device whose bandwidth is the first bandwidth;

Sending a switching instruction to the target terminal device, so that the target terminal device switches from the first bandwidth whose parameter configuration is wrong to the second bandwidth.
A bandwidth switching method, applied to a terminal device, comprising:

After the bandwidth switching is completed, detecting the parameter configuration of the first bandwidth where the terminal device is located;

In the case of determining that the parameter configuration of the first bandwidth is wrong, sending a bandwidth exception notification to the network side device;

receiving a switching instruction sent by the network side device after receiving the bandwidth abnormality notification; the switching instruction is used to instruct the terminal device to switch to the second bandwidth;

In response to the switch indication, switch from the first bandwidth to the second bandwidth.
The method according to claim 7, wherein in the case of determining that the parameter configuration of the first bandwidth is wrong, sending a notification of abnormal bandwidth to the network side device includes:

Obtain the communication status information after the bandwidth switching is completed;

If it is determined according to the communication state information that the communication is abnormal and the communication link with the network side device fails to be reestablished, the bandwidth abnormality notification is sent to the network side device.
The method according to claim 7 or 8, wherein, after sending the abnormal bandwidth notification to the network side device, further comprising:

If the switching instruction is not received, switch from the first bandwidth to a third bandwidth; the third bandwidth is the network side device before the terminal device switches to the first bandwidth, which is The configured bandwidth allocated by the end device is correct.
The method according to claim 7 or 8, wherein, when sending the notification of abnormal bandwidth to the network side device, it includes:

sending bandwidth information of a third bandwidth to the network side device, where the bandwidth information is used to instruct the network side device to determine that the third bandwidth is the second bandwidth; where the third bandwidth is the network The side device allocates a correctly configured bandwidth to the terminal device before the terminal device switches to the first bandwidth.
A bandwidth switching device, comprising:

A detection module, configured to detect the parameter configuration of the first bandwidth where the terminal device is located after the terminal device completes bandwidth switching;

A sending module, configured to send a switching instruction to the terminal device when the parameter configuration of the first bandwidth is incorrect, so that the terminal device switches from the first bandwidth whose parameter configuration is incorrect to the second bandwidth.
The device according to claim 11, wherein the sending module is specifically configured to acquire communication state information with the terminal device; when determining that the communication is abnormal according to the communication state information, and communicating with the terminal device When the communication link re-establishment fails, send the switching instruction to the terminal device; or, in the case of receiving the abnormal bandwidth notification sent by the terminal device, send the switching instruction to the terminal device ; Wherein, the bandwidth exception notification is sent by the terminal device after the bandwidth switching is completed and it is determined that the parameter configuration of the first bandwidth is incorrect.
The apparatus according to claim 11, further comprising:

A prohibition module, configured to prohibit any terminal device from switching to the first bandwidth when the parameter configuration of the first bandwidth is wrong.
The apparatus according to claim 13, wherein the prohibition module is further configured to reconfigure the first bandwidth; and allow any terminal device to switch to the reconfigured first bandwidth.
The apparatus according to claim 12, wherein the sending module is further configured to determine that the third bandwidth indicated by the bandwidth information is the second bandwidth when receiving the bandwidth information sent by the terminal device ; Wherein, the third bandwidth is the correctly configured bandwidth allocated to the terminal device by the network side device before the terminal device switches to the first bandwidth.
The device according to any one of claims 11-15, wherein the sending module is further configured to determine a target terminal device when the parameter configuration of the first bandwidth is wrong; the target terminal device is In addition to the terminal device, the terminal device whose bandwidth is the first bandwidth; sends a switching instruction to the target terminal device, so that the target terminal device switches from the first bandwidth whose parameters are incorrectly configured to the second bandwidth. Two bandwidth.
A bandwidth switching device, comprising:

A detection module, configured to detect the parameter configuration of the first bandwidth where the terminal device is located after the bandwidth switching is completed;

A sending module, configured to send a bandwidth exception notification to the network-side device when it is determined that the parameter configuration of the first bandwidth is wrong;

A receiving module, configured to receive a switching instruction sent by the network-side device after receiving the bandwidth abnormality notification; the switching instruction is used to instruct the terminal device to switch to a second bandwidth;

A switching module, configured to switch from the first bandwidth to the second bandwidth in response to the switching instruction.
The device according to claim 17, wherein the sending module is specifically configured to obtain communication status information after bandwidth switching is completed; when it is determined that the communication is abnormal according to the communication status information, and the communication with the network side device When the communication link fails to be re-established, the bandwidth exception notification is sent to the network side device.
The device according to claim 17 or 18, wherein the switching module is further configured to switch from the first bandwidth to a third bandwidth if the switching instruction is not received; the third bandwidth The correctly configured bandwidth allocated to the terminal device by the network side device before the terminal device switches to the first bandwidth.
The apparatus according to claim 17 or 18, wherein the sending module is further configured to send bandwidth information of a third bandwidth to the network side device, and the bandwidth information is used to instruct the network side device to determine the The third bandwidth is the second bandwidth; wherein, the third bandwidth is the correctly configured bandwidth allocated to the terminal device by the network side device before the terminal device switches to the first bandwidth.
An electronic device, comprising a processor, a memory, and a program or instruction stored in the memory and operable on the processor, when the program or instruction is executed by the processor, claims 1-10 are realized Steps in any one of the bandwidth switching methods.
A readable storage medium, storing programs or instructions on the readable storage medium, and implementing the steps of the bandwidth switching method according to any one of claims 1-10 when the programs or instructions are executed by a processor.
A chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, the processor is used to run programs or instructions, and realize the bandwidth switching according to any one of claims 1-10 method steps.