CN117295132A

CN117295132A - Cell switching method, device, terminal and computer readable storage medium

Info

Publication number: CN117295132A
Application number: CN202311392513.7A
Authority: CN
Inventors: 李沁沛; 张林强
Original assignee: Hangzhou Douku Software Technology Co Ltd
Current assignee: Hangzhou Douku Software Technology Co Ltd
Priority date: 2023-10-24
Filing date: 2023-10-24
Publication date: 2023-12-26

Abstract

The application provides a cell switching method, a cell switching device, a terminal and a computer readable storage medium, wherein the cell switching method comprises the following steps: under the condition of abnormal air interface, acquiring the quality parameter of the current service cell; wherein the quality parameter characterizes the quality of service level of the current serving cell; under the condition that the quality parameter is smaller than or equal to a first detection threshold value, switching the current serving cell into a first state; the first state represents that the current serving cell is in an abnormal state; cell reselection is performed when a first detection parameter of a current serving cell in a first state is greater than or equal to a second detection threshold; wherein the first detection parameter characterizes a number of times the wireless link is triggered to break. The embodiment of the application can improve the efficiency of cell switching.

Description

Cell switching method, device, terminal and computer readable storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, but not limited to, cell handover methods, apparatuses, terminals, and computer readable storage media.

Background

Currently, 5G networks typically include some Self-Healing mechanism that can minimize network outages and failures to ensure reliability and stability of the network.

In the related art, if the terminal device repeatedly tries to reconstruct in an abnormal cell in the case where the abnormal cell reference signal received power (Reference Signal Received Power, RSRP) is stronger than that of a neighbor cell, it is possible to increase the handover time from the currently connected cell to the target cell. In this case, the terminal device may preferentially select an abnormal cell maintained in a stronger signal, rather than attempting handover to a neighbor cell, thus causing delay in cell handover.

Disclosure of Invention

The cell switching method, the cell switching device, the terminal and the computer readable storage medium can improve the cell switching efficiency.

The technical scheme of the application is realized as follows:

in a first aspect, an embodiment of the present application provides a cell handover method, where the method includes:

under the condition of abnormal air interface, acquiring the quality parameter of the current service cell; wherein the quality parameter characterizes the quality of service level of the current serving cell;

under the condition that the quality parameter is smaller than or equal to a first detection threshold value, switching the current serving cell into a first state; the first state represents that the current serving cell is in an abnormal state;

cell reselection is performed when a first detection parameter of a current serving cell in a first state is greater than or equal to a second detection threshold; wherein the first detection parameter characterizes a number of times the wireless link is triggered to break.

In a second aspect, an embodiment of the present application provides a cell switching apparatus, including: the device comprises an acquisition unit, a switching unit and a reselection unit; wherein,

the acquisition unit is used for acquiring the quality parameter of the current service cell under the condition of air interface abnormality; wherein the quality parameter characterizes the quality of service level of the current serving cell;

a switching unit, configured to switch a current serving cell to a first state when the quality parameter is less than or equal to a first detection threshold; the first state represents that the current serving cell is in an abnormal state;

a reselection unit, configured to perform cell reselection when a first detection parameter of a current serving cell in a first state is greater than or equal to a second detection threshold; wherein the first detection parameter characterizes a number of times the wireless link is triggered to break.

In a third aspect, an embodiment of the present application provides a terminal, including: the cell switching system comprises a processor and a memory, wherein the memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the cell switching method.

In a fourth aspect, embodiments of the present application provide a computer readable storage medium storing a computer program which, when executed by at least one processor, implements a cell handover method as above.

In an embodiment of the present application, a cell handover method, an apparatus, a terminal, and a computer readable storage medium are provided, where the method includes: under the condition of abnormal air interface, acquiring the quality parameter of the current service cell; wherein the quality parameter characterizes the quality of service level of the current serving cell; under the condition that the quality parameter is smaller than or equal to a first detection threshold value, switching the current serving cell into a first state; the first state represents that the current serving cell is in an abnormal state; cell reselection is performed when a first detection parameter of a current serving cell in a first state is greater than or equal to a second detection threshold; wherein the first detection parameter characterizes a number of times the wireless link is triggered to break. Under the condition that the terminal is in an air interface abnormality, switching the state of the terminal according to the quality parameter of the current service cell, detecting the first detection parameter of the current service cell to judge whether cell reselection is carried out or not, and thus, realizing quick self-healing, and improving the efficiency of cell switching.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and, together with the description, serve to explain the technical aspects of the application. It is apparent that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.

Fig. 1 is a schematic architecture diagram of an application scenario of an alternative cell handover method according to an embodiment of the present application;

fig. 2 is a schematic flow chart of an alternative cell handover method according to an embodiment of the present application;

fig. 3 is a second flowchart of an alternative cell handover method according to an embodiment of the present application;

fig. 4 is a flowchart of an alternative cell handover method according to an embodiment of the present application;

fig. 5 is a flow chart diagram of an alternative cell handover method according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of an alternative cell switching device according to an embodiment of the present application;

fig. 7 is a schematic diagram of an alternative composition structure of a terminal according to an embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail with reference to the accompanying drawings, and the described embodiments should not be construed as limiting the present application, and all other embodiments obtained by those skilled in the art without making any inventive effort are within the scope of the present application.

In the following description, reference is made to "some embodiments," "embodiments of the application," and examples, etc., which describe a subset of all possible embodiments, but it is to be understood that "some embodiments" may be the same subset or different subsets of all possible embodiments and may be combined with one another without conflict.

If a similar description of "first/second" appears in the application document, the following description is added, in which the terms "first/second/third" are merely distinguishing between similar objects and not representing a particular ordering of the objects, it being understood that the "first/second/third" may be interchanged with a particular order or precedence, if allowed, so that the embodiments of the application described herein may be implemented in an order other than that illustrated or described herein.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of the present application only and is not intended to be limiting of the present application.

In the related art, when a 5G SA (standby) network is used, a terminal uses some general self-healing mechanism to ensure the reliability and stability of the network. The self-healing mechanism can help the reliability and stability of the network, help the network to automatically diagnose and repair when the network faces faults or problems, and is a common self-healing mechanism of 5G SA:

1) Fault detection and analysis: the 5G SA network is capable of detecting faults or abnormal conditions in the network, such as hardware faults or signal disturbances. Once an abnormal problem is detected, diagnosis can be performed as soon as possible, and the root cause of the problem is determined;

2) Dynamic resource configuration: the 5G SA may automatically adjust the resource configuration to use changes in network load and demand, including: dynamically allocating bandwidth, spectrum and base station resources to ensure network performance optimization;

3) Load balancing: the self-healing mechanism can analyze the traffic load condition in the network and transfer traffic from an overloaded area to an area with lower load when needed so as to prevent network congestion;

4) Fault isolation and repair: when a fault occurs, the 5G SA network can quickly isolate the affected part to prevent the fault from spreading to the whole network, and can attempt to automatically repair the problem or trigger manual intervention, etc.;

5) Automatic software update: the software of the network device and the base station can be automatically updated periodically to ensure the latest state of safety and performance;

6) Real-time monitoring and analysis: the 5G SA network continuously evaluates the network performance through real-time monitoring and data analysis;

7) Fault tolerance and backup: the network may provide redundant devices and backup communication paths to provide backup communication paths in the event of a failure of a primary component or link.

In the related technology, aiming at the scene of poor network quality, the terminal supports to trigger the reestablishment through the radio link failure, so that the terminal can have an opportunity to perform network recovery. If the terminal device repeatedly tries to re-establish in an abnormal cell if the RSRP of the abnormal cell is stronger than that of the neighbor cell, this may increase the handover time from the currently connected cell a (cell a) to the target neighbor cell B (cell B). In this case, the terminal device may preferentially select an abnormal cell maintained in a stronger signal, rather than attempting to handover to a neighbor cell, thus causing a delay. This situation may have an adverse effect on the user experience, since the terminal device may continue to attempt to establish a connection in an abnormal cell, rather than immediately handover to a neighbor cell, even if the neighbor cell provides a better quality of service. Operators and network maintainers often need to solve this problem through network optimization to ensure that the terminal device can efficiently perform a handover to a neighbor cell, thereby providing better connectivity and quality of service.

Based on this, the embodiments of the present application provide a cell switching method, apparatus, terminal, and computer readable storage medium, which can make a terminal switch to a target cell with better signal quality in time, so as to improve the network quality of the terminal. The following describes exemplary applications of the terminal provided in the embodiments of the present application, and the terminal provided in the embodiments of the present application may be implemented as various types of user terminals such as a notebook computer, a tablet computer, a desktop computer, a set-top box, a mobile device (e.g., a mobile phone, a portable music player, a personal digital assistant, a dedicated messaging device, a portable game device), and so on. In the following, an exemplary application when the device is implemented as a terminal will be described.

Referring to fig. 1, fig. 1 is a schematic architecture diagram of an application scenario of an optional cell handover method according to an embodiment of the present application. As shown in fig. 1, the communication system 10 may include: a terminal 11 and a network device 12.

The terminal 11 may include various types of notebook computers, tablet computers, desktop computers, set-top boxes, etc. having wireless communication functions, various types of user terminal handsets (e.g., mobile phones, portable music players, personal digital assistants, dedicated messaging devices, portable game devices), vehicle-mounted devices, wearable devices (e.g., smartwatches, smartbands, etc.), computing devices (e.g., notebook computers, tablet computers, desktop computers, etc.), or other processing devices connected to wireless modems, as well as various forms of user devices, mobile Stations (MSs), etc. For convenience of description, the above-mentioned devices are collectively referred to as a terminal. The network device 12 and the terminal 11 communicate with each other via some kind of air interface technology, e.g. Uu interface.

The network device 12 may be an evolved NodeB (eNB), an Access Point (AP), or a relay station in a long term evolution LTE system, or may be a base station (such as a gNB or a transmission point (Transmission Point, TRP)) in a 5G system, or in a 5G NR-U system, a device with a base station function may be called a gnnodeb or a gNB.

In addition, in the embodiment of the present application, the network device 12 provides services for different cells, and the terminal 11 and the network device 12 through transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cells corresponding to the network device 12 (e.g., base station). The cell may belong to a macro base station or may belong to a base station corresponding to a Small cell (Small cell), where the Small cell may include: urban cells, micro cells (Micro cells), pico cells (Pico cells), femto cells (Femto cells) and the like, and the small cells have the characteristics of small coverage area and low transmitting power and are suitable for providing high-rate data transmission services. In addition, the cell may also be a super cell (Hyper cell).

In the embodiment of the present application, multiple cells may simultaneously operate on a carrier in an LTE system or an NR system in the same frequency, and in some special scenarios, the carrier may be considered to be identical to the concept of the cell. For example, in the scenario of carrier aggregation (Carrier Aggregation, CA), when configuring a secondary carrier for a UE, the carrier index of the secondary carrier and the Cell identity (Cell ID) of the secondary Cell operating on the secondary carrier are carried at the same time, in which case the carrier is considered to be equivalent to the concept of a Cell, such as that the UE accesses one carrier and accesses one Cell are equivalent.

The cell switching method provided in the present application is implemented based on an architecture diagram of an application scenario of the cell switching method shown in fig. 1, referring to fig. 2, fig. 2 is a flowchart of an alternative cell switching method provided in an embodiment of the present application, and the following description will be given with reference to steps shown in fig. 2, where the cell switching method includes S101 to S103 as shown in fig. 2:

s101, under the condition of air interface abnormality, acquiring the quality parameter of the current service cell; wherein the quality parameter characterizes a quality of service level of the current serving cell.

In the embodiment of the application, the terminal detects whether the terminal is in an air interface abnormality. That is, the terminal can monitor the quality and self-healing of the network connection by detecting whether it is in an air interface anomaly.

In the embodiment of the present application, the air interface abnormality refers to an abnormal situation occurring on the air interface of the mobile communication network. Air interfaces refer to wireless communication connections between mobile devices (e.g., handsets) and base stations, which typically use radio waves to transmit data and signals. Air interface anomalies typically involve problems with the wireless communication link, such as reduced signal quality, high latency, increased packet loss rate, etc.

In an embodiment of the present application, the air interface anomaly includes at least one of:

Signal strength decreases: the signal quality of the terminal device is obviously reduced, which may result in reduced communication quality, poor call quality or slow data transmission speed.

High delay: the delay time of data transmission increases, resulting in communication being not smooth, especially for real-time communication applications (such as voice calls or video calls).

The packet loss rate is increased: the probability of losing the data packet in the transmission process increases, which may cause data transmission errors or need retransmission, and affect the communication quality.

Bandwidth limitation: the terminal device is bandwidth limited in the air interface connection, resulting in a slow data transmission rate.

Connection instability: the terminal device may be disconnected frequently or require frequent reconnection, which may be due to an air interface anomaly.

Interference: the wireless signal is subject to interference, possibly from other wireless devices, electromagnetic interference, or physical obstructions.

Spectral problems: malallocation of spectrum or congestion of spectrum may lead to air interface anomalies.

In general, air interface anomalies may be caused by various reasons, including network congestion, signal interference, network failure, base station problems, equipment failure, etc., and the embodiments of the present application are not limited in this regard.

In the embodiment of the present application, the manner in which the terminal detects whether it is in the air interface abnormality includes, but is not limited to, at least one of the following:

Signal intensity detection: the terminal device may periodically measure the signal strength (typically indicated by an indicator such as RSRP or RSSI) of the current connection. If the signal strength drops dramatically, it may indicate that the terminal device is in a poor network coverage area.

Delay measurement: the terminal device may measure the delay time of the data transmission, and a higher delay may indicate that the network connection is unstable or congested.

And (3) monitoring the packet loss rate: the terminal device may detect the loss of the transmitted data packet, and if the packet loss rate increases, it may indicate that the data is interfered during the transmission process.

Bandwidth utilization monitoring: the terminal device may monitor the bandwidth utilization of the current network, and higher bandwidth utilization may result in reduced performance.

And (3) protocol layer detection: the terminal device may detect whether there is a connection problem by detection of the protocol layer, for example, packet loss or timeout in a TCP connection may indicate an air interface anomaly.

And (3) application layer detection: some applications may detect air interface anomalies by monitoring their own performance. For example, a video telephony application may detect a video quality degradation and an audio application may detect an audio loss.

Custom detection logic: the terminal device may implement a custom detection logic to detect air interface anomalies according to specific needs and application scenarios.

It should be noted that the above detection method of the air interface abnormality is only an example, and other detection methods may also be included in the actual application scenario, which is not limited in this embodiment of the present application, and may be specifically selected according to the actual application scenario.

In the embodiment of the application, under the condition that the terminal detects that the terminal is in an air interface abnormality, the terminal acquires a quality parameter representing the service quality grade of the current service cell. The quality parameters may include: signal strength, signal quality, delay, packet loss rate, etc.

For example, the terminal may check the radio connection settings or use a mobile application to see the signal strength and signal quality of the current serving cell. Typically, signal strength is expressed in dBm (decibel milliwatts) or a signal quality indicator (e.g., RSRP, RSSI). The terminal may also use a network diagnostic tool or application to measure the delay of packets arriving at the target server or service. The delay is typically in milliseconds. The terminal can also measure the packet loss rate by sending a data packet to the target server and checking whether there is a data packet loss. The packet loss rate indicates the proportion of data packets lost during data transmission. The terminal may also compare the obtained metrics with the quality of service level. Different quality of service levels may have different thresholds and criteria. For example, higher signal strength, lower delay and packet loss rate are typically associated with better quality of service levels. The method for obtaining the quality parameters is not limited in any way.

S102, switching the current serving cell into a first state under the condition that the quality parameter is smaller than or equal to a first detection threshold value; the first state characterizes that the current serving cell is in an abnormal state.

In the embodiment of the application, when the quality parameter meets a first preset condition, the current serving cell is indicated to be in an abnormal state. The first preset condition may be a threshold value or a combined condition of one or more quality parameters. An interval of timing detection may be set in the system to periodically check whether the quality parameter satisfies a first preset condition. When the quality parameter is monitored to meet the first preset condition, the system triggers a state switching operation to switch the current service cell into a first state, and the abnormal state is represented.

In the embodiment of the present application, when the terminal switches the state, a notification and an alarm are generally sent to the user or the related party to inform the occurrence of the abnormal state. In addition, the time, cause, and operation of the state switch may be recorded for subsequent analysis and improvement. And monitoring the quality parameters after the state switching to ensure that the problem is solved.

In the present embodiment, the first state may be denoted as Abnormal.

In some embodiments of the present application, the first preset condition includes: the quality parameter is less than or equal to the first detection threshold.

In this embodiment of the present application, the first detection threshold is a preset value. When the terminal monitors that the quality parameter of the current service cell is smaller than or equal to the first detection threshold value, the system triggers a state switching operation to switch the current service cell to an abnormal state.

It will be appreciated that on the one hand, monitoring quality parameters and comparing them to preset thresholds can help the system identify anomalies in real time, which allows the system to react to problems quickly without having to wait until the problem further worsens. On the one hand, by triggering the state switching when the quality parameter falls below the preset threshold, the network can more quickly cope with the quality degradation or other abnormal conditions, which is helpful to improve the network performance and reduce the interruption of user experience. If the quality parameters start to drop, when they are below the threshold, the terminal device or system may immediately switch to the standby cell or take other action, thereby reducing the problem perceived by the user. On the one hand, the abnormality of the quality parameter is associated with the state switching operation, and the fault removal process can be automatically started, so that the need for manual intervention is reduced. By fast response and solving the problems, the stability and reliability of the network can be improved, and the risk of service quality degradation is reduced. On the one hand, the automatic quality parameter monitoring and state switching can reduce the workload of operation and maintenance personnel, so that most abnormal problems can be automatically processed.

It should be noted that the setting of the preset threshold should be based on a good performance and availability analysis to ensure that state switches are not triggered frequently, thereby reducing unnecessary interventions while ensuring timely countering important anomalies. Optimizing the threshold and monitoring strategy is critical to balance the need for fast reaction and reduced false alarms.

S103, cell reselection is carried out under the condition that a first detection parameter of a current service cell in a first state is larger than or equal to a second detection threshold value; wherein the first detection parameter characterizes a number of times the wireless link is triggered to break.

In the embodiment of the present application, an interval of timing detection is set in the system of the terminal so as to periodically check whether the first detection parameter satisfies the second preset condition (the first detection parameter is greater than or equal to the second detection threshold). When the first detection parameter is monitored to meet the second preset condition, the terminal equipment can trigger a cell reselection operation, wherein the cell reselection operation comprises searching available service cells, selecting a new service cell and establishing a new wireless connection. This is typically done automatically by the terminal device. When cell reselection is performed, a notification and alarm is typically sent to the user or interested party to inform about the change in connection status. In addition, the terminal records the time, cause and operation of cell reselection for subsequent analysis and improvement, and monitors the new connection to ensure that the problem is solved.

In this embodiment of the present application, the terminal periodically monitors the second detection parameter, which refers to a specific value of the second detection parameter, for example, the number of times of triggering the radio link to be disconnected.

In the embodiment of the present application, the first detection parameter characterizes the number of times of triggering the disconnection of the wireless link, which means that the system continuously monitors the connection state of the terminal device to count the number of times of triggering the disconnection of the wireless link. When this parameter meets or exceeds the first detection threshold, the system may consider performing a cell reselection operation to improve connection quality or solve the problem. This mechanism helps to ensure that the stability of the connection is maintained, especially in case of quality problems or frequent disconnection. The goal of the cell reselection operation is to select a more stable and high quality serving cell to provide a better user experience. It is necessary to ensure that the first detection threshold and the monitoring policy are reasonably set to meet network performance and user requirements.

In the embodiment of the application, a cell switching method is provided, which is applied to a terminal, and firstly, under the condition of air interface abnormality, the quality parameter of a current service cell is obtained; wherein the quality parameter characterizes the quality of service level of the current serving cell; secondly, under the condition that the quality parameter meets a first preset condition, switching the current service cell into a first state; the first state represents that the current serving cell is in an abnormal state; finally, cell reselection is performed under the condition that the first detection parameter of the current serving cell in the first state meets a second preset condition; wherein the first detection parameter characterizes a number of times the wireless link is triggered to break. Under the condition that the terminal is in an air interface abnormality, the terminal state is switched according to the quality parameter of the current service cell, and the first detection parameter of the current service cell is detected to judge whether cell reselection is carried out, so that the terminal can be self-healed rapidly, and the cell switching efficiency is improved.

It will be appreciated that on the one hand, the monitoring and detection of air interface anomalies enables the system to immediately identify and take action when a problem arises, to reduce service disruption. On the one hand, by switching the current serving cell to the first state, the system can quickly respond to the problem when the quality parameter meets the first preset condition, thereby providing a quick self-healing mechanism. The self-healing mechanism and cell reselection help to improve network stability and reduce the risk of degradation of service quality. By automatically switching to the abnormal state when a problem occurs, the system can reduce the problem perceived by the user and improve the user experience. In one aspect, the cell reselection mechanism allows the system to change to a more stable serving cell when a first detection parameter of the serving cell in a first state meets a second preset condition, so as to reduce service interruption time. On the one hand, the self-healing mechanism automatically triggers state switching and cell reselection operation, so that the need of manual intervention is reduced, and the operation and maintenance cost is reduced. The system can automatically take measures when the problems are detected, and the workload of maintenance and fault elimination is reduced. By quickly responding to the problem and improving the connection stability, the system is expected to improve the service quality level of the network and provide better user experience.

In some embodiments of the present application, the current serving cell is in any one of a first state, a second state, and a third state; the second state represents that the current serving cell is in a normal running state; the third state characterizes the current serving cell in an abnormal recovery state.

In some embodiments of the present application, obtaining a quality parameter of a current serving cell includes:

under the condition that the current serving cell is in a first state or a third state, starting a first timer, and acquiring quality parameters when a first detection period is met; or,

under the condition that the current serving cell is in a second state, starting a first timer, and acquiring quality parameters when a second detection period is met; wherein the first detection period is less than or equal to the second detection period.

In the embodiment of the application, the second state characterizes that the current service cell is in a normal running state, in this state, the terminal equipment is all normal, the network connection is stable, and the user can use the service normally. For example, the second state may be represented as Normal.

In the embodiment of the application, the third state characterizes that the current serving cell is in an abnormal recovery state, in which this state indicates that a problem may have occurred before, but the system is attempting to recover to a normal state. During this time, some self-healing operations may be performed to help the network return to normal. For example, the third state may be denoted as recovery.

It can be understood that the system of the terminal can monitor the state of the current service cell in real time, so as to identify and process the problem in time, and when the service cell is in an abnormal state, the system can quickly take measures to solve the problem, and reduce the problem perceived by the user and service interruption. In addition, the self-healing mechanism of the system can automatically execute necessary operations, so that the need of manual intervention is reduced, and the operation and maintenance cost is reduced. And the normal state is recovered by taking measures under the abnormal state, so that the stability and the reliability of the network are improved. In addition, the third state indicates that the system is attempting to automatically recover from an abnormal situation, which helps to improve the recoverability of the system.

In the embodiment of the application, the terminal acquires the quality parameter according to the state of the current serving cell and different detection periods. Such a flexible mechanism may help to optimize the acquisition of quality parameters according to the requirements in different states to meet the requirements of network performance and user experience.

In the embodiment of the application, the terminal first checks the state of the current serving cell. If the current serving cell is in the first state or the third state, namely the abnormal state or the state in abnormal recovery. When the serving cell is in an abnormal state, the terminal starts a first timer. The timer will be used to trigger the acquisition of the quality parameter when the first detection period is met. The terminal starts to wait until the time requirement of the first detection period is met. The first detection period is a preset time interval, typically shorter than the second detection period, in order to monitor the quality parameter in the abnormal state more frequently. Once the first detection period is satisfied, the terminal acquires the quality parameter of the current serving cell. These parameters may include signal strength, signal quality, delay, packet loss rate, etc., characterizing the quality of service level of the current serving cell. And the terminal evaluates the acquired quality parameters to judge whether the service quality grade of the current service cell meets a first preset condition. If the quality parameter meets a first preset condition, the system can switch the current serving cell to a first state to represent an abnormal state. This means that the system is taking measures to solve the problem and improve the connection quality.

In this embodiment of the present application, if the current serving cell is in the second state, i.e. the normal operating state, although the serving cell is in the normal state, the terminal may also start the first timer. This will be used to trigger the acquisition of the quality parameter when the second detection period is fulfilled. The terminal waits until the time requirement of the second detection period is met. The second detection period is a predetermined time interval, which is generally longer than the first detection period, to reduce the resource consumption. Once the second detection period is satisfied, the terminal acquires the quality parameter of the current serving cell, as in the operation in the first state. And the terminal evaluates the acquired quality parameters to judge whether the service quality grade of the current service cell meets a first preset condition.

In the embodiment of the application, the terminal allows the system to flexibly acquire the quality parameters according to the state and the requirement of the current service cell and take measures. By monitoring more frequently in abnormal conditions, the system can respond more quickly to problems, while monitoring frequency is reduced in normal conditions to increase efficiency. This helps to improve network performance, user experience, and self-healing capabilities. It is necessary to ensure that the settings of timers, periods, thresholds and operations are reasonable to meet network performance and user requirements.

In some embodiments of the present application, as shown in fig. 3, the method further includes S201 to S203:

s201, determining the current state of the current service cell under the condition that the quality parameter is larger than a first detection threshold value.

In the embodiment of the present application, in the case that the quality parameter does not meet the first preset condition, the terminal may continuously check the state of the current serving cell to determine the current state of the terminal.

In the embodiment of the present application, if the quality parameter does not meet the first preset condition, but no further state switching operation is triggered, the current serving cell may maintain the original state. This means that it continues to maintain the abnormal state, normal state, or state in the abnormal recovery without change.

In the embodiment of the present application, if the quality parameter does not meet the first preset condition, the terminal may also take other measures to attempt to solve the problem, instead of immediately switching the state. This may include reconnecting, adjusting parameters, performing network optimization, etc. to improve quality parameters.

In the embodiment of the present application, if the quality parameter does not meet the first preset condition, but the problem may be temporary, the terminal may continue to detect the quality parameter at regular time to observe whether the situation will be improved. The state switching operation may be triggered if the quality parameter satisfies a condition in a subsequent detection.

And S202, switching the current service cell to a third state when the current state is not the second state.

In the embodiment of the application, the terminal checks the state of the current serving cell, and if the current state is not the normal state, the terminal performs a state switching operation to switch the current serving cell to a third state, namely, an abnormal recovery state. After performing the state switch, the terminal typically sends a notification and alarm to the associated maintenance personnel or user, indicating the change of state and the ongoing recovery operation. In the third state, the terminal may perform an abnormal recovery operation, which may include a self-healing mechanism, automatic repair, troubleshooting, and the like, in an attempt to solve the problem and recover the serving cell to a normal state. The terminal will continuously monitor the state and quality parameters of the serving cell to ensure the effectiveness of the recovery operation.

S203, switching the current service cell to the second state and resetting the second detection parameter when the second detection parameter of the current service cell in the third state is greater than or equal to the third detection threshold; wherein the second detection parameter characterizes that the quality parameter of the current serving cell satisfies the accumulated value of the third state in the process of starting the timer.

In the embodiment of the present application, the system of the terminal first confirms that the state of the current serving cell is in a third state, that is, an abnormal recovery state. The system of the terminal monitors the second detection parameter, and when the value of the second detection parameter meets a second preset condition (the second detection parameter is greater than or equal to the third detection parameter) in the process of starting the timer, the system indicates that the recovery operation is successful or the problem is solved. And when the second detection parameter meets a second preset condition, the system of the terminal switches the current serving cell into a second state, namely a normal state. This means that the serving cell has been successfully restored and is considered to be in a normal operating state. After the state is switched, the system of the terminal clears the second detection parameter to prepare for starting the monitoring of the next round. The system of the terminal will typically send notifications and alarms to the relevant maintenance personnel or users, indicating a change of state and a successful recovery operation.

It should be noted that the above procedure is intended to automatically complete the recovery operation from the abnormal state to the normal state, and once the second detection parameter indicates that the problem has been solved, the system of the terminal will automatically switch to the normal state to ensure the network stability and the user satisfaction. It is necessary to ensure that the second preset conditions, the second detection parameters, the timer setting and the state switching operation are all reasonably configured and tested to ensure that the system of the terminal operates in a designed manner.

In some embodiments of the present application, the method further comprises:

and executing the step of acquiring the quality parameter of the current serving cell under the condition that the second detection parameter of the current serving cell in the third state is smaller than the third detection parameter.

In this embodiment of the present application, the system of the terminal monitors the second detection parameter, and if its value does not meet the second preset condition, it indicates that the problem has not yet been solved or that the recovery operation has not yet succeeded. In this case, the system of the terminal performs the step of acquiring the quality parameter of the current serving cell. This may include obtaining information on signal strength, signal quality, delay, packet loss rate, etc. to learn the quality of service of the current serving cell. The system of the terminal evaluates the acquired quality parameters to further understand the state and quality of the network. This helps to determine if the problem still exists or is improving gradually. The system of the terminal will continue to monitor the second detection parameter and the quality parameter in order to keep track of the state changes of the network.

It will be appreciated that the above procedure allows the system of the terminal to continuously monitor and evaluate the network state in case the recovery operation has not been successful, to ensure the resolution of the problem. If the quality parameter display problem still exists, the system of the terminal can continue taking measures, such as self-healing mechanism, automatic repair, troubleshooting, etc., to attempt to solve the problem. The need to ensure that the quality parameters are obtained and evaluated is reasonable and can provide useful information for network maintenance.

In some embodiments of the present application, before performing cell reselection, in a case where a first detection parameter of a current serving cell in the first state is greater than or equal to a second detection threshold, the method further includes:

under the condition that the third detection parameter of the current service cell is smaller than or equal to the fourth detection threshold value, updating the first detection parameter to obtain an updated first detection parameter; the third detection parameter characterizes an accumulated value that the quality parameter of the current service cell does not meet a first preset condition in the starting process of the timer;

it is determined whether the updated first detection parameter is greater than or equal to a second detection threshold.

In the embodiment of the present application, the current serving cell is in a first state, i.e., an abnormal state. Meanwhile, the first detection parameter meets a second preset condition, which means that the condition for triggering cell reselection is met. The system of the terminal first confirms that the state of the current serving cell is in a first state, namely an abnormal state. The system of the terminal monitors the first detection parameter and if its value fulfils a second preset condition, it indicates that the condition triggering the cell reselection is fulfilled. The third detection parameter continues to be monitored. In the process of starting the timer, if the value of the third detection parameter meets a third preset condition (the third detection parameter is smaller than or equal to a fourth detection threshold value), the accumulated value of the first preset condition is not met by the quality parameter of the current serving cell. If the third detection parameter meets a third preset condition, the system of the terminal executes the operation, and adds one to the first detection parameter to obtain an updated first detection parameter. This operation helps to record and reflect the problem conditions that occur during the timer start. The system of the terminal determines whether the updated first detection parameter meets a second preset condition. If so, indicating that the problem has been solved or is gradually improving, the cell reselection operation may continue. And if the updated first detection parameter meets a second preset condition, the system of the terminal executes cell reselection operation. This may include: finding available neighbor serving cells; selecting a service cell with better quality; cell reselection is performed and the connection is switched to the new serving cell.

It will be appreciated that the purpose of the above procedure is to trigger a cell reselection operation to improve connection quality or solve problems when certain conditions are met in abnormal situations. It is necessary to ensure that the setting and condition judgment of the first, second, third detection parameters are reasonable and can provide useful information for network maintenance. Furthermore, the process of cell reselection should be optimized according to network policy and performance requirements.

In some embodiments of the present application, the method further comprises:

determining the number of times of current failure information corresponding to the current service cell under the condition that the third detection parameter of the current service cell is larger than a fourth detection threshold;

and under the condition that the number of times of the current failure information is greater than or equal to a fifth detection threshold value, removing the cell information of the previous service cell from the first cell list, and adding the cell information of the service cell into the second cell list so as to inhibit the connection with the current service cell.

In the embodiment of the application, the system of the terminal monitors the third detection parameter, and if the value of the third detection parameter does not meet the third preset condition, the problem is still not solved or the network quality does not reach the expected level. The system of the terminal starts to record the number of times of the current failure information corresponding to the current service cell. Such failure information may include connection failure, communication errors, dropped events, etc., and the count is incremented each time the failure information occurs. The system of the terminal will compare the number of times of the current failure information with a fifth detection threshold. If the number of times of the current failure information is greater than or equal to the fifth detection threshold, the problem is continuously present. In case the number of times of the current failure information is greater than or equal to the fifth detection threshold, the system of the terminal will perform the following operations:

1) Removing the cell information of the current serving cell: the system of the terminal removes the cell information of the current serving cell from the first cell list. This means that the connection of the current serving cell is marked as unstable or unreliable;

2) Adding the cell information of the serving cell to the second cell list: the system of the terminal adds the cell information of the current serving cell to the second cell list. This may mean that the system of the terminal will no longer attempt to actively establish a connection with the current serving cell in order to avoid an unstable connection.

It will be appreciated that the purpose of the above procedure is to improve network performance and user experience by recording and comparing the number of times of failure information, marking unstable serving cells and removing them from the primary connection list in the event that network quality problems persist.

In some embodiments of the present application, after removing the cell information of the current serving cell from the first cell list and adding the cell information of the serving cell to the second cell list, when the number of times of the current failure information is greater than or equal to the fifth detection threshold, the method further includes:

and starting a second timer, removing the second cell list from the current service cell under the condition that the second timer is overtime, and adding the current service cell to the first cell list so as to enable the current service cell to allow the current service cell to establish connection.

In the embodiment of the present application, after removing the cell information of the current serving cell from the first cell list and adding the cell information to the second cell list, the system of the terminal starts the second timer. This is a timer that runs at set time intervals. When the second timer times out, i.e. the time interval ends, the system of the terminal will perform the following operations:

1) The system of the terminal removes the cell information of the current serving cell from the second cell list. This means that during the time interval of the second timer the current serving cell is not marked as unavailable, but the connection is re-allowed to be established;

2) And the system of the terminal re-adds the cell information of the current service cell into the first cell list. This means that the current serving cell is again considered the object of the preferred connection.

It will be appreciated that the connection is re-allowed to be established with the current serving cell after a period of time to allow an opportunity for improvement in network quality or connection stability. The timeout interval of the second timer should be reasonably configured according to network performance requirements and policies. This mechanism helps to maintain the dynamic connection state of the serving cell to cope with network fluctuations and changes in problems.

In some embodiments of the present application, performing cell reselection in a case where a first detection parameter of a current serving cell in a first state is greater than or equal to a second detection threshold includes:

under the condition that a first detection parameter of a current serving cell in a first state is greater than or equal to a second detection threshold value, determining a target serving cell in a first cell list; the target serving cell is a cell with highest signal quality in at least one cell to be served in the first cell list;

disconnecting the connection with the current serving cell and reestablishing a radio resource control connection with the target serving cell to access the target serving cell.

In the embodiment of the present application, the current serving cell is in a first state, i.e., an abnormal state. And if the first detection parameter is greater than or equal to the second detection threshold, the condition for triggering the cell reselection is met. The system first confirms that the state of the current serving cell is in a first state, i.e., an abnormal state. The system monitors the first detection parameter and if its value is greater than or equal to the second detection threshold, it indicates that a condition triggering cell reselection is met. In the first cell list, the system will determine the target serving cell. The target serving cell is the cell of the first cell list having the highest signal quality among the at least one cell to be served. This is to ensure that the best available serving cell is selected. The system performs an operation to disconnect from the current serving cell. This may include releasing radio resources and informing the terminal device to stop the connection of the current serving cell. The system reestablishes a radio resource control connection with the target serving cell to access the target serving cell. This comprises the steps of:

1) Cell selection: the system executes a cell selection process, evaluates available service cells and selects a target service cell with highest signal quality;

2) And (3) connection establishment: the system establishes new connection with the target service cell, and comprises the steps of establishing physical connection, negotiating connection parameters, completing authentication and the like;

3) Notifying the terminal device: the system informs the terminal device to switch to the new target serving cell connection.

After the above steps are completed, the cell reselection process is completed, and the terminal device is now connected to the target serving cell with higher signal quality.

It can be understood that the purpose of the above procedure is to select the target serving cell with the highest signal quality according to the preset condition under the abnormal condition, disconnect the current serving cell, so as to improve the connection quality and the user experience. The logic and flow of cell reselection should be reasonably configured according to network policy and performance requirements.

In the embodiment of the present application, fig. 4 is a flowchart of a third alternative cell switching method provided in the embodiment of the present application, and as shown in fig. 4, the cell switching method includes S301 to S312:

s301, under the condition of abnormal air interface, determining the state of the current service cell;

S302, under the condition that a current serving cell is in a first state or a third state, starting a first timer, and acquiring quality parameters when a first detection period is met;

s303, under the condition that the current service cell is in the second state, starting a first timer, and acquiring quality parameters when the second detection period is satisfied

S304, switching the current serving cell to a first state under the condition that the quality parameter is smaller than or equal to a first detection threshold value;

s305, determining a target serving cell in a first cell list under the condition that a first detection parameter of a current serving cell in a first state is greater than or equal to a second detection threshold; the target serving cell is a cell with highest signal quality in at least one cell to be served in the first cell list; disconnecting the connection with the current service cell, and reestablishing the radio resource control connection with the target service cell to access the target service cell;

s306, under the condition that the quality parameter is larger than a first detection threshold value, determining the current state of the current service cell;

s307, determining the number of times of the current failure information corresponding to the current service cell under the condition that the third detection parameter of the current service cell is larger than a fourth detection threshold;

S308, removing the cell information of the current service cell from the first cell list and adding the cell information of the current service cell into the second cell list under the condition that the number of times of the current failure information is larger than or equal to a fifth detection threshold value, so that the current service cell is forbidden to establish connection with the current service cell;

s309, starting a second timer, removing the cell information of the current service cell from the second cell list under the condition that the second timer is overtime, and adding the cell information of the current service cell to the first cell list so as to enable the cell information to allow the cell information to establish connection with the current service cell;

s310, switching the current service cell to a third state under the condition that the current state is not the second state;

s311, when the second detection parameter of the current service cell in the third state is greater than or equal to the third detection threshold, switching the current service cell to the second state, and resetting the second detection parameter;

s312, executing the step of acquiring the quality parameter of the current serving cell when the second detection parameter of the current serving cell in the third state is smaller than the third detection threshold.

The technical solution of the embodiments of the present application is explained in the following in a specific embodiment.

In the embodiment of the application, for cell reconstruction, the reconstruction is faster and supported without repeated abnormal cell reconstruction as much as possible; the network congestion, network card break-over, low internet surfing speed and other abnormal scenes can be identified and recovered. The technical scheme of the embodiment of the application provides a general mechanism: when each manufacturer judges that a certain air interface is abnormal according to the application scene, the technical scheme of the embodiment of the application can be used for completing quick self-healing or improving the possibility of self-healing.

In the embodiment of the present application, the terminal defines three states for the current serving cell: normal (corresponding to the second state), abnormal (corresponding to the first state), recovery (corresponding to the third state in recovery after abnormality).

In the embodiment of the application, the terminal supports the timing detection of the user-defined judgment condition, and the Normal state and the non-Normal state support different detection periods. For example, in Normal state, a longer detection period may be employed to reduce power consumption and network load; in non-Normal states (e.g., abnormal or recovery states), shorter detection cycles may be employed to more quickly detect problems and take action. Thus, the purposes of rapid detection of the terminal as required and rapid recovery (Fast recovery) of the terminal can be realized.

In the embodiment of the application, the terminal supports maintaining information of all abnormal cells. And when the abnormal times of a certain cell reach a certain threshold, the cell is supported to be pulled into a blacklist (corresponding to a second cell list), a Prohibit Timer (corresponding to a second Timer) is started, after the second Timer is overtime, the cell returns to the whitelist (corresponding to the first cell list) again, and the terminal does not use the cell (corresponding to the current service cell) in the second cell list to reside in the second Timer operation period.

In the embodiment of the application, the terminal supports logic switching of three state machines: the initial state is Normal (corresponding to the second state); if an anomaly is detected, setting to an Abnormal state (corresponding to the first state); in the Abnormal state, if the number of consecutive exceptions (corresponding to the third detection parameter) reaches max_sql_num (corresponding to the fourth detection threshold), triggering the Detach procedure (disconnection); if the detection is normal again in the Abnormal state, setting to a recovery state (corresponding to a third state), and clearing the number of previous abnormality times; in the Recovery state, if the number of consecutive Normal times (corresponding to the second detection parameter) reaches max_sql_rcy_num (corresponding to the third detection threshold), the Normal state (corresponding to the second state) is set.

In this embodiment of the present application, after the number of continuous Detach times (corresponding to the first detection parameter) is reached a certain number of times, the terminal selects a relatively optimal cell (corresponding to the target serving cell) for camping.

In this embodiment of the present application, fig. 5 is a flow chart diagram of an optional cell switching method provided in this embodiment of the present application, and as shown in fig. 5, the cell switching method includes S401 to S416:

s401, the initial state is the second state.

S402, whether the current state is the second state.

In the embodiment of the present application, S403 is executed when the current STATE (sql_state) is the second STATE (Normal), and S404 is executed when the current STATE is not the second STATE.

S403, delay (second detection period).

In the embodiment of the present application, S403 may be expressed as: delay (Timer 1).

S404, delay (first detection period).

In the embodiment of the present application, S404 may be expressed as: delay (Timer 2).

S405, triggering a service level assessment system.

In the embodiment of the present application, the service level assessment system may be expressed as: sql_eva_sys.

S406, whether the quality parameter is larger than a first detection threshold.

In the embodiment of the present application, S406 may be expressed as: whether SQL (quality parameter) is greater than Thrd_SQL (first detection threshold).

In the embodiment of the present application, when the quality parameter is greater than the first detection threshold, S407 is executed; when the quality parameter is less than or equal to the first detection threshold, S411 is performed.

S407, whether the current state is a second state.

In the embodiment of the present application, when the current state is the second state, S402 is executed; when the current state is not the second state, S408 is performed.

S408, the current state is set to the third state, and the second detection parameter is increased by one, and the first detection parameter is set to 0.

In the embodiment of the present application, S408 may be expressed as: SQL STATE is set to recovery & i_SQL_Rcy++; i_sql=0.

S409, whether the second detection parameter is larger than a third detection threshold.

In the embodiment of the present application, S409 may be expressed as whether i_sql_rcy is greater than MAX __ sol_rcy_num.

In the embodiment of the present application, when the second detection parameter is greater than the third detection threshold, S410 is executed; when the third detection parameter is less than or equal to the second detection threshold, S402 is performed.

S410, the current state is set to be the second state, and the second detection parameter is cleared.

In the embodiment of the present application, S410 may be represented as sql_state being set to Normal & exception statistics clear.

S411, adding one to the first detection parameter; and the current state is set as a first state; and the second detection parameter is set to 0.

In the embodiment of the present application, S411 may be expressed as: i_sql++ sql_state is set to Abnormal & i_sql_ RCy =0.

And S412, updating the maintenance information and the cell information.

S413, whether the third detection parameter is larger than a fourth detection threshold.

In the embodiment of the present application, S413 may be expressed as: whether i_sol is greater than max_sql_num.

In the embodiment of the present application, when the third detection parameter is greater than the fourth detection threshold, S414 is executed; when the third detection parameter is less than or equal to the fourth detection threshold, S402 is performed.

S414, triggering a disconnection mechanism.

In the embodiment of the present application, S414 may be expressed as: trigger Detach & k++.

S415, whether the first detection parameter is larger than a second detection threshold.

In the embodiment of the present application, S415 may be expressed as: k is greater than max_detect_num.

In the embodiment of the present application, when the first detection parameter is greater than the second detection threshold, S416 is performed; when the first detection parameter is less than or equal to the second detection threshold, S402 is performed.

S416, selecting an optimal cell according to the cell information.

In the embodiment of the present application, in S401 to S416, the meanings of the respective parameters are as follows:

SQL_STATE: normal (Normal state, corresponding to the second state), abnormal (Abnormal state, corresponding to the first state), recovery (recovery after abnormality, corresponding to the third state);

Timer1 (corresponding to the second detection period): when SQL_STATE (corresponding to the current STATE of the current service cell) is Normal, the operation cycle of SQL_eva_sys (service level evaluation system);

timer2 (corresponding to the first detection period): when SQL_STATE is Abnormal or recovery, the SQL_eva_sys has a running period;

SQL: quality of service class (equivalent to quality parameters);

sql_eva_sys: a service level assessment system;

thrd_sql (corresponding to the first detection threshold): a check threshold for quality of service class;

max_sql_rcy_num (corresponding to the third detection threshold): after SQL_STATE is set as Recovery, if the continuous times have no abnormality, the Recovery is normal;

i_sql_rcy (corresponding to the second detection parameter): SQL is an accumulated value in Recovery;

i_sql (corresponding to the third detection parameter): the quality of service class satisfies the accumulated times of thrd_SQL;

max_sql_num (corresponding to the fourth detection threshold): after the times of succession, the service level assessment system triggers Fast Recovery;

max_blacklist_sql_num (corresponding to the fifth detection threshold): in the time of two times of disconnection, if a certain cell reaches the number in SQL failure information (corresponding to the number of times of the current failure information), adding a blacklist (corresponding to a second cell list) to the cell;

K (corresponding to the first detection parameter): if the Detach reaches MAX_Deach_Num (corresponding to the second detection threshold), returning to the best cell;

max_detect_num (corresponding to the second detection threshold): maximum number of Detache;

prohibit Timer (corresponding to the second Timer): and a blacklist timer, which is started after a cell is defined as a blacklist, and is forbidden after overtime.

The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present application within the scope of the technical concept of the present application, and all the simple modifications belong to the protection scope of the present application. For example, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in detail. As another example, any combination of the various embodiments of the present application may be made without departing from the spirit of the present application, which should also be considered as disclosed herein. For example, the various embodiments and/or technical features of the various embodiments described herein may be combined with any other of the prior art without conflict, and the combined technical solutions should also fall within the scope of protection of the present application.

It should be understood that, in the various method embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Fig. 6 is a schematic diagram of the composition structure of an alternative cell switching device according to the embodiment of the present application, and as shown in fig. 6, the cell switching device 20 includes: an acquisition unit 21, a switching unit 22, and a reselection unit 23; wherein,

the acquiring unit 21 is configured to acquire a quality parameter of the current serving cell in a case of an air interface abnormality; wherein the quality parameter characterizes a quality of service level of the current serving cell;

the switching unit 22 is configured to switch the current serving cell to a first state if the quality parameter is less than or equal to a first detection threshold; wherein the first state characterizes the current serving cell as being in an abnormal state;

the reselection unit 23 is configured to perform cell reselection when a first detection parameter of the current serving cell in the first state is greater than or equal to a second detection threshold; wherein the first detection parameter characterizes the number of times of triggering the wireless link to be disconnected.

In some embodiments of the present application, the current serving cell is in any one of the first state, the second state, and the third state; the second state characterizes that the current serving cell is in a normal running state; the third state characterizes that the current serving cell is in an abnormal recovery state; the obtaining unit 21 is configured to start a first timer when the current serving cell is in the first state or the third state, and obtain the quality parameter when a first detection period is satisfied; or, under the condition that the current serving cell is in the second state, starting the first timer, and acquiring the quality parameter when a second detection period is met; wherein the first detection period is less than or equal to the second detection period.

In some embodiments of the present application, the switching unit 22 is further configured to determine a current state of the current serving cell if the quality parameter is greater than the first detection threshold; switching the current service cell to a third state under the condition that the current state is not the second state; switching the current service cell to the second state and clearing the second detection parameter under the condition that the second detection parameter of the current service cell in the third state is larger than or equal to a third detection threshold value; wherein the second detection parameter characterizes that the quality parameter of the current serving cell satisfies the accumulated value of the third state in the process of starting the timer

In some embodiments of the present application, the switching unit 22 is further configured to perform the step of obtaining the quality parameter of the current serving cell if the second detection parameter of the current serving cell in the third state is smaller than the third detection threshold.

In some embodiments of the present application, the switching unit 22 is further configured to update the first detection parameter to obtain an updated first detection parameter when the third detection parameter of the current serving cell is less than or equal to a fourth detection threshold; wherein, the third detection parameter characterizes that the quality parameter of the current service cell does not meet the accumulated value of the first preset condition in the process of starting a timer; determining whether the updated first detection parameter is greater than or equal to the second detection threshold.

In some embodiments of the present application, the switching unit 22 is further configured to determine a number of times of current failure information corresponding to the current serving cell, where the third detection parameter of the current serving cell is greater than the fourth detection threshold; and under the condition that the number of times of the current failure information is greater than or equal to a fifth detection threshold value, removing the cell information of the current service cell from the first cell list, and adding the cell information of the service cell into the second cell list so as to inhibit the connection with the current service cell.

In some embodiments of the present application, the switching unit 22 is further configured to start a second timer, remove the second cell list from the current serving cell and add the current serving cell to the first cell list when the second timer expires, so as to allow the connection with the current serving cell to be established.

In some embodiments of the present application, the reselection unit 23 is further configured to determine a target serving cell in the first cell list if a first detection parameter of the current serving cell in the first state is greater than or equal to a second detection threshold; the target serving cell is a cell with highest signal quality in at least one cell to be served in the first cell list; disconnecting the connection with the current service cell, and reestablishing the radio resource control connection with the target service cell to access the target service cell.

Those skilled in the art will appreciate that the above description of the cell switching apparatus according to the embodiments of the present application may be understood with reference to the description of the cell switching method according to the embodiments of the present application.

Fig. 7 is a schematic diagram of the composition structure of an alternative terminal provided in the embodiment of the present application, as shown in fig. 7, where, the terminal 30 includes a processor 31 and a memory 32, where the memory 32 may store a computer program, and the processor 31 may call and run the computer program from the memory 32 to implement the method in the embodiment of the present application.

The memory 32 may be a separate device independent of the processor 31 or may be integrated in the processor 31.

In some embodiments, as shown in fig. 7, the terminal 30 may further include a transceiver 33, and the processor 31 may control the transceiver 33 to communicate with other devices, and in particular, may transmit information or data to other devices, or receive information or data transmitted by other devices.

The transceiver 33 may include a transmitter and a receiver, among others. The transceiver 33 may further include antennas, the number of which may be one or more.

It is understood that the processor of the embodiments of the present application may be an integrated circuit chip having information processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will also be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM). It should be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Embodiments of the present application also provide a computer-readable storage medium for storing a computer program.

In some embodiments, the computer readable storage medium may be applied to a terminal in an embodiment of the present application, and when the computer program is executed by at least one processor, the corresponding flow implemented by the terminal in each method in the embodiment of the present application is implemented, which is not described herein for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

In some embodiments, the computer program product may be applied to a terminal in an embodiment of the present application, and the computer program instructions cause the computer to execute corresponding processes implemented by the terminal in each method in the embodiment of the present application, which are not described herein for brevity.

The embodiment of the application also provides a computer program.

In some embodiments, the computer program may be applied to a terminal in the embodiments of the present application, where the computer program when run on a computer causes the computer to execute corresponding processes implemented by the terminal in the methods in the embodiments of the present application, and for brevity, will not be described in detail herein.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the embodiments of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the apparatus and units described above may refer to corresponding procedures in the foregoing method embodiments, which are not described herein again.

In the several embodiments provided in the embodiments of the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purposes of the embodiments of the present application.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the embodiments of the present application may be essentially or, what contributes to the prior art, or part of the technical solution may be embodied in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing embodiment numbers of the present application are merely for describing, and do not represent advantages or disadvantages of the embodiments.

The methods disclosed in the method embodiments provided in the embodiments of the present application may be arbitrarily combined without collision to obtain a new method embodiment.

The features disclosed in several product embodiments provided in the embodiments of the present application may be combined arbitrarily without conflict to obtain new product embodiments.

The features disclosed in several method or apparatus embodiments provided in the embodiments of the present application may be arbitrarily combined without any conflict to obtain new method embodiments or apparatus embodiments.

The foregoing is merely a specific implementation of the embodiments of the present application, but the protection scope of the embodiments of the present application is not limited thereto, and any person skilled in the art may easily think about changes or substitutions within the technical scope of the embodiments of the present application, and all changes and substitutions are included in the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of cell handover, the method comprising:

under the condition of abnormal air interface, acquiring the quality parameter of the current service cell; wherein the quality parameter characterizes a quality of service level of the current serving cell;

Switching the current serving cell to a first state under the condition that the quality parameter is smaller than or equal to a first detection threshold value; wherein the first state characterizes the current serving cell as being in an abnormal state;

cell reselection is performed when a first detection parameter of the current serving cell in the first state is greater than or equal to a second detection threshold; wherein the first detection parameter characterizes the number of times of triggering the wireless link to be disconnected.

2. The method of claim 1, wherein the current serving cell is in any one of the first state, second state, and third state; the second state characterizes that the current serving cell is in a normal running state; the third state characterizes that the current serving cell is in an abnormal recovery state;

the obtaining the quality parameter of the current serving cell includes:

starting a first timer under the condition that the current serving cell is in the first state or the third state, and acquiring the quality parameter when a first detection period is met; or,

starting the first timer under the condition that the current serving cell is in the second state, and acquiring the quality parameter when a second detection period is met; wherein the first detection period is less than or equal to the second detection period.

3. The method according to claim 1 or 2, characterized in that the method further comprises:

determining a current state of the current serving cell if the quality parameter is greater than the first detection threshold;

switching the current service cell to a third state under the condition that the current state is not the second state;

switching the current service cell to the second state and resetting the second detection parameter under the condition that the second detection parameter of the current service cell in the third state is larger than or equal to a third detection threshold value; wherein the second detection parameter characterizes that the quality parameter of the current serving cell satisfies the accumulated value of the third state in the process of starting the timer.

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

and executing the step of acquiring the quality parameter of the current serving cell under the condition that the second detection parameter of the current serving cell in the third state is smaller than the third detection threshold.

5. The method of claim 1, wherein the method further comprises, prior to cell reselection, if a first detection parameter of the current serving cell in the first state is greater than or equal to a second detection threshold:

Updating the first detection parameter under the condition that the third detection parameter of the current service cell is smaller than or equal to a fourth detection threshold value, so as to obtain an updated first detection parameter; wherein, the third detection parameter characterizes that the quality parameter of the current service cell is larger than the accumulated value of the first detection threshold value in the process of starting a timer;

determining whether the updated first detection parameter is greater than or equal to the second detection threshold.

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

determining the number of times of current failure information corresponding to the current serving cell under the condition that the third detection parameter of the current serving cell is larger than the fourth detection threshold;

and under the condition that the number of times of the current failure information is greater than or equal to a fifth detection threshold value, removing the cell information of the current service cell from a first cell list, and adding the cell information of the current service cell into a second cell list so as to inhibit the connection with the current service cell.

7. The method according to claim 6, wherein the method further comprises, after removing the cell information of the current serving cell from the first cell list and adding the cell information of the current serving cell to the second cell list, in the case that the number of times of the current failure information is greater than or equal to a fifth detection threshold value:

And starting a second timer, removing the cell information of the current service cell from the second cell list under the condition that the second timer is overtime, and adding the cell information of the current service cell to the first cell list so as to enable the cell information to allow the cell information to establish connection with the current service cell.

8. The method according to any one of claims 1 to 7, wherein said performing cell reselection in case the first detection parameter of the current serving cell in the first state is greater than or equal to a second detection threshold comprises:

under the condition that a first detection parameter of the current service cell in the first state is greater than or equal to a second detection threshold value, determining a target service cell in a first cell list; the target serving cell is a cell with highest signal quality in at least one cell to be served in the first cell list;

disconnecting the connection with the current service cell, and reestablishing the radio resource control connection with the target service cell to access the target service cell.

9. A cell switching apparatus, the apparatus comprising: the device comprises an acquisition unit, a switching unit and a reselection unit; wherein,

The acquiring unit is used for acquiring the quality parameter of the current service cell under the condition of air interface abnormality; wherein the quality parameter characterizes a quality of service level of the current serving cell;

the switching unit is configured to switch the current serving cell to a first state when the quality parameter is less than or equal to a first detection threshold; wherein the first state characterizes the current serving cell as being in an abnormal state;

the reselection unit is configured to perform cell reselection when a first detection parameter of the current serving cell in the first state is greater than or equal to a second detection threshold; wherein the first detection parameter characterizes the number of times of triggering the wireless link to be disconnected.

10. A terminal, the terminal comprising: a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory for performing the cell handover method according to any of claims 1 to 8.

11. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program which, when executed by at least one processor, implements the cell handover method according to any of claims 1 to 8.