CN117939556A - Network selection method, device and storage medium based on cellular network - Google Patents

Abstract

The application discloses a network selection method, equipment and storage medium based on a cellular network, wherein the network selection method based on the cellular network comprises the following steps: network registration processing is carried out based on the searched current network cell, and a registration result is obtained; responding to the failure of the registration result, and carrying out shielding treatment on the current network cell; responding to the successful registration result, carrying out network detection on the current network cell to obtain a network detection result of the current network cell; and if the network detection result is available, locking the current network cell. The scheme can adaptively select the network.

Description

Network selection method, device and storage medium based on cellular network

Technical Field

The present application relates to the field of data communications technologies, and in particular, to a network selection method, device, and storage medium based on a cellular network.

Background

With the development and popularization of cellular network technology and the characteristics of flexible and convenient arrangement of cellular devices, low hardware dependence and the like, the devices based on the cellular network are more and more.

Due to the wide coverage characteristic of the cellular network, the update iteration of related equipment, the layout of the cellular private network and other factors, the network is complex and various, various problems are easy to occur, and network registration abnormality is caused or a registered cell is not a cell of an ideal network environment.

The current cellular modules are various and wide in application range, but the current network strategies are low in universality, and the network is difficult to adaptively select aiming at the application scenes of all devices.

Disclosure of Invention

The application provides at least a network selection method, a device, equipment and a computer readable storage medium based on a cellular network.

The first aspect of the present application provides a network selection method based on a cellular network, including: network registration processing is carried out based on the searched current network cell, and a registration result is obtained; responding to the failure of the registration result, and carrying out shielding processing on the current network cell; responding to the successful registration result, carrying out network detection on the current network cell to obtain a network detection result of the current network cell; and if the network detection result is available, locking the current network cell.

In an embodiment, the step of performing network detection on the current network cell to obtain a network detection result of the current network cell includes: performing bandwidth measurement on the current network cell based on preset measurement times to obtain a plurality of current cell bandwidths of the current network cell; judging the current cell bandwidth smaller than a preset bandwidth threshold as an abnormal bandwidth, and judging the current cell bandwidth larger than or equal to the bandwidth threshold as a normal bandwidth; if the ratio between the number of abnormal bandwidths and the preset measurement times is larger than a preset abnormal frequency threshold value, judging that the network detection result is unavailable; and if the ratio between the number of abnormal bandwidths and the preset measurement times is smaller than or equal to the abnormal frequency threshold value, judging that the network detection result is available.

In an embodiment, the step of performing bandwidth measurement on the current network cell based on the preset measurement times to obtain a plurality of current cell bandwidths of the current network cell includes: acquiring signal power and/or signal-to-noise ratio of the current network cell; if the signal power is smaller than a preset descending threshold value and/or the signal to noise ratio is smaller than the descending threshold value, increasing the preset measurement times to obtain target measurement times; and carrying out bandwidth measurement of the target measurement times on the current network cell to obtain a plurality of current cell bandwidths of the current network cell, wherein the number of the current cell bandwidths corresponds to the number of the target measurement times.

In an embodiment, after the step of determining that the network detection result is available if the ratio between the number of abnormal bandwidths and the preset measurement number is less than or equal to the abnormal frequency threshold, the method further includes: acquiring switching frequency of switching network cells in a preset period when the network detection result is available; if the switching frequency is larger than a preset switching frequency threshold value, locking the current network cell; and if the switching frequency is smaller than or equal to the switching frequency threshold value, continuously measuring the bandwidth of the current network cell.

In an embodiment, after the step of masking the current network cell in response to the registration result being a failure, the method further includes: judging whether the searched other network cells are available; if the network registration information is available, carrying out network registration processing based on the other network cells to obtain other registration results; if not, judging whether candidate network cells with weak evaluation types are present in the other network cells; if so, determining a target network cell in the candidate network cells; performing network detection on the target network cell to obtain a target network detection result of the target network cell; and if the target network detection result is available, locking the target network cell.

In an embodiment, the step of determining a target network cell among the candidate network cells includes: acquiring the bandwidth of the candidate network cell; if at least two candidate network cells with different bandwidths exist, selecting a network cell with the largest bandwidth in the candidate network cells as the target network cell; and if the bandwidths of the candidate network cells are the same, selecting any network cell in the candidate network cells as the target network cell.

In an embodiment, the step of performing network detection on the target network cell to obtain a target network detection result of the target network cell includes: acquiring target signal power and/or target signal-to-noise ratio of the target network cell; if the target signal power is greater than the acquired re-detection threshold and/or the target signal-to-noise ratio is greater than the re-detection threshold, updating the evaluation type of the target network cell to be unknown in network state; and carrying out bandwidth measurement on the target network cell to obtain the target network detection result.

In an embodiment, the method further comprises: selecting the maximum power and the minimum power in the signal power of the target network cell; and carrying out data processing on the maximum power and the minimum power based on Gaussian distribution to obtain a re-detection threshold value of the target network cell.

A second aspect of the present application provides a network selection apparatus based on a cellular network, comprising: the network registration module is used for carrying out network registration processing based on the searched current network cell to obtain a registration result; the shielding module is used for responding to the failure of the registration result and carrying out shielding treatment on the current network cell; the network detection module is used for responding to the successful registration result to perform network detection on the current network cell to obtain a network detection result of the current network cell; and the locking module is used for locking the current network cell if the network detection result is available.

A third aspect of the present application provides an electronic device comprising a memory and a processor for executing program instructions stored in the memory to implement the above-described cellular network based network selection method.

A fourth aspect of the present application provides a computer readable storage medium having stored thereon program instructions which, when executed by a processor, implement the above-described cellular network based network selection method.

According to the scheme, the network registration processing is carried out on the searched current network cell, so that a registration result of the current network cell is obtained; if the registration result is failure, the current network cell is characterized as not being normally used, and the current network cell is shielded to avoid interference with the subsequent network use process; if the registration result is successful, the current network cell is characterized to be normally used, and network detection is carried out on the current network cell to judge whether the network of the current network cell can meet the use requirement; if the network detection result is available, the current network cell is locked to prevent switching to other network cells, so that the self-adaptive network selection can be realized, and the stability in the process of using the cellular network is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

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 principles of the application.

Fig. 1 is a flow diagram of an exemplary embodiment of a cellular network based network selection method of the present application;

Fig. 2 is a block diagram of a cellular network-based network selection apparatus according to an exemplary embodiment of the present application;

FIG. 3 is a schematic diagram of an embodiment of an electronic device of the present application;

FIG. 4 is a schematic diagram of an embodiment of a computer readable storage medium of the present application.

Detailed Description

The following describes embodiments of the present application in detail with reference to the drawings.

In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, interfaces, techniques, etc., in order to provide a thorough understanding of the present application.

The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship. Further, "a plurality" herein means two or more than two. In addition, the term "at least one" herein means any one of a plurality or any combination of at least two of a plurality, for example, including at least one of A, B, C, may mean including any one or more elements selected from the group consisting of A, B and C.

In order to facilitate understanding, the problem scene which can be solved by the application is exemplarily described, and along with development and popularization of cellular network technology, the characteristics of flexible and convenient arrangement of the cellular terminal, low hardware dependence and the like are added, so that more and more video security devices for transmitting video streams through the cellular network are also provided. Due to the wide coverage characteristic of the cellular network, factors such as updating iteration of network equipment, layout of a cellular private network and the like, the network is complex and various, and various network problems are easy to occur. The main manifestations are: the network is not registered; frequently switching network cells; the registered network cell is not the destination network cell or the like. Among these problems are mainly the following:

a. The base station arrangement and configuration is unreasonable, resulting in the terminal constantly switching back and forth between two network cells. For example, the signals of the high priority cells are poor, the signals of the low priority cells are good, and the difference value of the signals of the two cells just wander above and below a set threshold value, so that frequent network switching is triggered.

B. the arrangement and configuration of the base stations are not reasonable, resulting in that the terminal registration cell is not the destination cell to be registered. This situation mostly occurs in an environment where the destination cell is arranged with a private network, for example, a non-destination cell with a stronger signal or higher priority may affect the registration of the terminal in the destination cell.

C. cells of other non-target standard networks interfere with the network, resulting in failure of the terminal to register with the network. For example, telecommunication 4G usually uses SRLTE (CDMA and LTE are registered simultaneously), and since current CDMA is in a gradually-dropped state, network configuration supports SRLTE and CDMA registration is abnormal in practice, which affects that LTE cannot be registered and flow cannot be performed smoothly.

The cellular module has various products and wide application range, and the network policy of the cellular module focuses on universality, is relatively difficult to be compatible with special network environments, and particularly frequently solves the problem of common video security equipment based on a cellular network in a private network environment.

Referring to fig. 1, fig. 1 is a flow chart illustrating an exemplary embodiment of a network selection method based on a cellular network according to the present application. Specifically, the method provided by the application can be applied to a terminal device based on a cellular network, and can comprise the following steps:

step S110, network registration processing is carried out based on the searched current network cell, and a registration result is obtained.

A cell, also called a cell, refers to an area covered by one of base stations or a part (sector antenna) of the base stations in a cellular mobile communication system, in which a mobile station (terminal device) can reliably communicate with the base station through a radio channel.

Specifically, in the process that the terminal equipment uses the cellular network, the cellular module needs to be started, then the terminal equipment can perform network searching and network registration based on the acquired network policy, and the cellular network can be used on the premise that the network registration is successful. The network policy may be a preset general policy or a policy that is adjusted to a certain degree, which is not limited herein; the network registration process includes network registration and network dialing, which is a process well known to those skilled in the art and will not be described in detail herein.

In addition, before step S110 is performed, the network system of the terminal device may be defined. For example: if the cellular module of the terminal equipment is a 4G module, limiting the terminal equipment to search only the 4G network; if the cellular module of the terminal device is a 5G module, the terminal device may be restricted to search for 4G networks and/or 5G networks. It should be noted that, because the traffic data volume of the video security device is large, the requirement on bandwidth is high, and the use of 4G and/or 5G networks is generally suitable for the use scenario of the device, the requirement of the video security device on the data transmission bandwidth is difficult to be met by the network below 3G. And such devices generally do not have the CS domain requirements themselves, and if the VOLTE is turned on under the special condition that there is a need for a telephone short message, the requirements can be satisfied. And the network system of the network searching process is limited, so that the influence of the 2G network and the 3G network on the normal registration network of the terminal equipment caused by unreasonable network arrangement, incomplete network returning work and the like can be avoided efficiently.

In the process of performing the network registration process, the terminal device records and evaluates the registered network cells. Wherein, the recorded content comprises PCI (PHYSICAL CELL IDENTIFIER, physical cell identification), frequency point, RSRP (REFERENCE SIGNAL RECEIVING Power, reference Signal received Power) and SINR (Signal to Interference plus Noise Ratio, signal-to-interference plus noise ratio) of the network cell, etc.; the types of evaluation include unknown network state (unknown), successful registration and dialing (dialed), registration failure or dialing failure (failed), and weak network state (weak).

It should be noted that, for the network cell that is not registered by the terminal device, the evaluation type may be set as a default to be unknown in the network state (unknown); if the network cell is successfully registered and successfully dialed, the evaluation type is updated to be successful (dialed); if the registration or dialing of the network cell fails, updating the evaluation type to failure (failed); in addition, if the registration of the network cell is successful and the dialing is successful, after the evaluation type is updated to be successful (dialed), judging whether the bandwidth reached by the current network cell meets the requirement based on RSRP, if the bandwidth can not meet the requirement, updating the evaluation type to be weak in network state (weak), and if the network cell can meet the requirement, keeping the evaluation type to be successful (dialed); or after the network cell is successfully registered and dialing is successful, judging whether the bandwidth reached by the current network cell meets the network requirement based on RSRP, if the network requirement cannot be met, updating the evaluation type of the network requirement to be weak (weak), and if the network requirement cannot be met, updating the evaluation type of the network requirement to be successful (dialed).

And step S120, in response to the failure of the registration result, the current network cell is shielded.

It will be understood that, when the registration result of network registration in the current network cell fails, the current network cell is not available to the terminal device to which the method is applied, so as to avoid that the current network cell may continue to cause network interference to the terminal device, and therefore, the current network cell is masked. The masking may be to mask the frequency point of the current network cell, so that the terminal device will not connect to the network cell first.

It should be noted that, after shielding the current network cell, other network cells may be searched for network registration processing; if the current network cell is locked before shielding the current network cell, the locking state of the current network cell is canceled and then shielding is carried out.

And step S130, responding to the successful registration result, and carrying out network detection on the current network cell to obtain a network detection result of the current network cell.

In combination with the foregoing steps, if the registration result of network registration in the current network cell is successful, further network detection needs to be performed on the current network cell to determine whether the network of the current network cell meets the network requirement. Network detection includes bandwidth measurement and stability detection, among others.

For bandwidth measurement, for example, whether the bandwidth of the current network cell meets the bandwidth requirement may be reflected by detecting the transport block Size (transport block Size, TB Size) over the bandwidth of the current network cell. The transport block size may be calculated according to a modulation and coding scheme (modulation and coding scheme, MCS) and the number of Resource Blocks (RBs) in the cellular network.

It should be noted that, if the judgment is only based on the TB Size, bandwidth resources are allocated when the terminal device performs service transmission, so that when only control plane data is available and there is no service of the user plane, the terminal is not allocated resources, and a specific TB Size value cannot be obtained. Therefore, the bandwidth measurement procedure of the present application can refer to RSRP and SINR at the same time on the basis of detecting TB Size.

For example, recording the RSRP and SINR of the current network cell is started after registration and dialing are successful; if the terminal equipment starts to perform the service, acquiring a bandwidth value of the current network cell (for example, acquiring a bandwidth average value of the current network cell in a period of time); if the bandwidth value of the current network cell is smaller than the preset bandwidth threshold value, characterizing that the bandwidth of the current network cell is abnormal; carrying out N times of statistics (N is a positive integer) on the bandwidth of the current network cell, and if the frequency of bandwidth abnormality in the N times of statistics is greater than a preset abnormal frequency threshold value, judging that the bandwidth of the current network cell does not meet the requirement; judging whether the current RSRP and/or SINR is lower than a preset descending threshold value, if so, indicating that the bandwidth is not met due to certain accidental factors possibly occurring in the current network cell, for example, shielding foreign objects and the like; to avoid such occasional short-term factors, the test period of network detection can be prolonged to improve the accuracy of the test.

Step S140, if the network detection result is available, locking the current network cell.

The foregoing steps are combined to describe, if the network detection result is available, that is, the bandwidth equivalent to characterizing the current network cell meets the network requirement of the terminal device, for example: and if the TB Size, the RSRP and the SINR all meet the respective corresponding threshold requirements, locking the current network cell, and taking the current network cell as a target cell for network access of the terminal equipment so as to prevent the terminal equipment from being interfered by other network cells later, so that the terminal equipment is switched to the other network cells from the current network cell in a certain period, and the stability of the terminal equipment in the network use process is improved.

It can be seen that the present application obtains the registration result of the current network cell by performing network registration processing on the searched current network cell; if the registration result is failure, the current network cell is characterized as not being normally used, and the current network cell is shielded to avoid interference with the subsequent network use process; if the registration result is successful, the current network cell is characterized to be normally used, and network detection is carried out on the current network cell to judge whether the network of the current network cell can meet the use requirement; if the network detection result is available, the current network cell is locked to prevent switching to other network cells, so that the self-adaptive network selection can be realized, and the stability in the process of using the cellular network is improved.

Based on the above embodiments, the embodiments of the present application are described based on the step of performing network detection on the current network cell to obtain the network detection result of the current network cell. Specifically, the method of the embodiment comprises the following steps:

Performing bandwidth measurement on the current network cell based on preset measurement times to obtain a plurality of current cell bandwidths of the current network cell; judging the current cell bandwidth smaller than a preset bandwidth threshold value as an abnormal bandwidth, and judging the current cell bandwidth larger than or equal to the bandwidth threshold value as a normal bandwidth; if the ratio between the number of abnormal bandwidths and the preset measurement times is larger than a preset abnormal frequency threshold value, judging that the network detection result is unavailable; if the ratio between the number of abnormal bandwidths and the preset measurement times is smaller than or equal to the abnormal frequency threshold value, the network detection result is judged to be available.

The foregoing embodiments are described with reference to the case where the current network cell is successfully registered, network detection of the current network cell is required, and the network detection includes bandwidth measurement.

In an exemplary embodiment, bandwidth measurement of a preset measurement number is performed on a current network cell to obtain a plurality of current cell bandwidths of the current network cell, where the number of obtained current cell bandwidths corresponds to the preset measurement number, and it is to be noted that bandwidths with the same or different bandwidth values may exist in a plurality of current cell bandwidths of the current network cell.

Further, a bandwidth threshold value can be preset according to the bandwidth requirement, the acquired current cell bandwidth is compared with the bandwidth threshold value, the current cell bandwidth smaller than the bandwidth threshold value is judged to be an abnormal bandwidth, and the current cell bandwidth larger than or equal to the bandwidth threshold value is judged to be a normal bandwidth; if the ratio between the number of abnormal bandwidths and the preset measurement times is larger than a preset abnormal frequency threshold (which is equivalent to that the frequency of occurrence of the abnormality in the measurement period corresponding to the preset measurement times is larger than the abnormal frequency threshold), judging that the network detection result is unavailable; if the ratio between the number of abnormal bandwidths and the preset measurement times is smaller than or equal to an abnormal frequency threshold (which is equivalent to that the frequency of occurrence of the abnormality in the measurement period corresponding to the preset measurement times is smaller than or equal to the abnormal frequency threshold), the network detection result is judged to be available.

It should be noted that if the registration is successful but the network detection result is unavailable, the bandwidth of the current network cell may have the problems of weak signal, low network speed and the like, so that the evaluation type of the network cell can be updated to the weak; if the registration is successful and the network detection result is available, the evaluation type of the network cell may be updated to dialed.

On the basis of the above embodiment, the steps of obtaining a plurality of current cell bandwidths of the current network cell by performing bandwidth measurement on the current network cell based on the preset measurement times are described in the embodiments of the present application. Specifically, the method of the embodiment comprises the following steps:

Acquiring signal power and/or signal-to-noise ratio of a current network cell; if the signal power is smaller than a preset descending threshold value and/or the signal to noise ratio is smaller than the descending threshold value, the preset measuring times are increased, and the target measuring times are obtained; and carrying out bandwidth measurement of the target measurement times on the current network cell to obtain a plurality of current cell bandwidths of the current network cell, wherein the number of the current cell bandwidths corresponds to the number of the target measurement times.

As described in connection with the foregoing embodiments, in some special cases, the bandwidth measurement may be affected by accidental factors such as shielding of foreign objects, so in addition to the method of detecting the bandwidth value in the process of performing the bandwidth measurement, it is also possible to determine whether such an effect exists by acquiring the signal power RSRP and/or the signal-to-noise ratio SINR of the current network cell, that is, whether the cause of the bandwidth abnormality is due to the decrease of the signal power and/or the signal-to-noise ratio.

It should be noted that, the method of this embodiment may be performed after determining that the network detection result is unavailable, so as to determine whether the reason why the network detection result is unavailable is affected by the signal power and/or the signal-to-noise ratio; if the network detection result is available, the determination process of the present embodiment may be skipped.

Wherein there may be one or more (e.g., two, i.e., signal power and signal-to-noise ratio, respectively, have respective corresponding drop thresholds).

For example, the signal power may be compared to a corresponding drop threshold and the signal-to-noise ratio may be compared to a corresponding drop threshold, and if the signal power is less than the drop threshold and/or the signal-to-noise ratio is less than the drop threshold, the bandwidth anomaly may be characterized as a result of a drop in the signal power and/or the signal-to-noise ratio; therefore, in order to avoid the influence of accidental factors, the preset measurement times are increased (equivalent to prolonging the measurement period), so as to obtain the target measurement times; performing bandwidth measurement of the target measurement times on the current network cell to obtain a plurality of current cell bandwidths of the current network cell, wherein the number of the current cell bandwidths at the moment corresponds to the target measurement times; and judging whether the frequency of the abnormality in the current cell bandwidth acquired based on the target measurement times is larger than an abnormal frequency threshold value or not to determine a network detection result, wherein the network detection result has higher accuracy and reliability.

Further, if the network detection result obtained by performing bandwidth measurement based on the target measurement times is available, continuing to detect the bandwidth; if the network detection result is unavailable, updating the evaluation type of the network cell to a weak.

It should be further noted that, if the signal power is greater than or equal to the drop threshold and/or the signal-to-noise ratio is greater than or equal to the drop threshold, the bandwidth abnormality may not be represented by the drop of the signal power and/or the signal-to-noise ratio, so that the network detection result may be directly determined as unavailable without increasing the measurement times, and the evaluation type of the network cell may be updated to weak.

Optionally, in addition to directly comparing the signal power and/or the signal-to-noise ratio with the corresponding drop threshold, the application can record the variation (such as the drop) of the signal power and/or the signal-to-noise ratio of the abnormal bandwidth in a period of time, and compare the signal power and/or the signal-to-noise ratio drop in a period of time with the corresponding drop threshold to determine whether the measurement frequency needs to be increased.

On the basis of the above embodiment, the embodiment of the present application describes steps after determining that the network detection result is available if the ratio between the number of abnormal bandwidths and the preset measurement number is less than or equal to the abnormal frequency threshold. Specifically, the method of the embodiment comprises the following steps:

Acquiring switching frequency of switching network cells in a preset period when a network detection result is available; if the switching frequency is larger than a preset switching frequency threshold value, locking the current network cell; and if the switching frequency is smaller than or equal to the switching frequency threshold value, continuously measuring the bandwidth of the current network cell.

As can be seen from the foregoing embodiments, the terminal device is easily affected by different network cells during the use of the cellular network, so that the terminal device performs frequent handover in each network cell, and the terminal device is unstable during the use of the cellular network.

Specifically, judging the switching frequency of switching network cell events when the terminal equipment is connected to the network cell in the available state as the network detection result in a preset period; it can be appreciated that if the network detection result of the network cell is available, the terminal device should rarely switch the network cell in general; therefore, if the switching frequency is greater than the preset switching frequency threshold, the terminal device needs to lock the current network cell so as to prevent the terminal device from frequently switching among the plurality of network cells and continuously detecting the current network cell; if the switching frequency is smaller than or equal to the switching frequency threshold value, the network cell is not required to be locked, and the bandwidth measurement of the network cell is kept; if the network cell has bandwidth abnormality, corresponding steps are executed according to the foregoing embodiment.

On the basis of the above embodiments, the embodiments of the present application describe steps after masking a current network cell in response to a registration result being a failure. Specifically, the method of the embodiment comprises the following steps:

judging whether the searched other network cells are available; if the network registration information is available, carrying out network registration processing based on other network cells to obtain other registration results; if not, judging whether candidate network cells with weak evaluation types are present in other network cells; if so, determining a target network cell in the candidate network cells; network detection is carried out on the target network cell, and a target network detection result of the target network cell is obtained; and if the target network detection result is available, locking the target network cell.

The foregoing embodiment has been described under the condition that the current network cell registration is successful, and the present embodiment is described under the condition that the current network cell registration is failed.

For example, after the registration of the current network cell fails, the current network cell may be masked, so that the terminal device may not be actively connected to the current network cell any more, thereby saving the time of the terminal device in the process of attempting to connect to the network. And then, the terminal equipment searches other network cells again to judge whether the searched other network cells are available, wherein whether the network cells are available or not can be judged according to the evaluation types of the network cells, the evaluation types of the available network cells comprise dailed and unknown, and the evaluation types of the unavailable network cells comprise failed and weak.

Further, network registration processing is performed on other available network cells to obtain corresponding other registration results. Accordingly, in connection with the description of the registration results in the foregoing embodiment, the same applies to other registration results, including but not limited to: responding to other registration results as failure, and carrying out shielding treatment on other network cells; responding to the success of other registration results, carrying out network detection on other network cells to obtain network detection results of other network cells; and if the network detection result is available, locking other network cells.

If no available network cell exists in the other searched network cells, judging whether candidate network cells with weak network state (weak) evaluation types exist in the other network cells; if so, selecting a network cell from candidate network cells with evaluation type of weak as a target network cell (if the target network cell is in a shielded state, canceling shielding of the target network cell); network detection is carried out on the target network cell, and a target network detection result of the target network cell is obtained; if the target network detection result is available, the target network cell is locked, so that the terminal equipment can select a secondary network in a weak state to solve the network problem under the network environment which does not meet the requirement. If no candidate network cell with weak network state (weak) exists in other network cells, the network linking process of the equipment terminal is directly ended (wherein, if the terminal equipment has a display function, no available network can be displayed currently), the frequency point shielding of the previous network cell can be canceled, the honeycomb module is restored to a default state, and the self-adaptive network selecting process is ended.

On the basis of the above embodiments, the steps of determining a target network cell among candidate network cells will be described in the embodiments of the present application. Specifically, the method of the embodiment comprises the following steps:

Acquiring the bandwidths of candidate network cells; if at least two candidate network cells with different bandwidths exist, selecting a network cell with the largest bandwidth in the candidate network cells as a target network cell; and if the bandwidths of the candidate network cells are the same, selecting any network cell in the candidate network cells as a target network cell.

In connection with the foregoing embodiment, if at least two candidate network cells with different bandwidths are found out in the plurality of candidate network cells, locking is performed from the network cell with the largest bandwidth in the candidate network cell as a target network cell, and if the target network cell is shielded, shielding is canceled, and network detection on the neighboring network cell can be maintained at the same time, so as to determine whether the network of the neighboring network cell is improved; if the bandwidths of the candidate network cells in the plurality of candidate network cells are the same, any network cell in the candidate network cells can be selected as a target network cell.

On the basis of the above embodiment, the embodiment of the present application is described based on the step of performing network detection on a target network cell to obtain a target network detection result of the target network cell. Specifically, the method of the embodiment comprises the following steps:

Acquiring target signal power and/or target signal-to-noise ratio of a target network cell; if the target signal power is greater than the acquired re-detection threshold and/or the target signal-to-noise ratio is greater than the re-detection threshold, updating the evaluation type of the target network cell to be unknown in network state; and carrying out bandwidth measurement on the target network cell to obtain a target network detection result.

As described in connection with the foregoing embodiments, the target network cell is determined from among candidate network cells of evaluation type weak, and thus, it is necessary to re-detect the target network cell after determining the target network cell.

Specifically, a target signal power (RSRP) and/or a target signal-to-noise ratio (SINR) of a target network cell are obtained; if the target signal power is greater than the obtained re-detection threshold and/or the target signal-to-noise ratio is greater than the re-detection threshold (the comparison process between the re-detection threshold and the re-detection threshold may refer to the description of the comparison process between the previous embodiment and the dropping threshold, and will not be repeated here); updating the evaluation type weak of the target network cell to unknown to characterize that the network of the target network cell may be improved, and then continuing to perform bandwidth measurement on the target network cell to obtain a corresponding target network detection result. After updating the evaluation type of the target network cell from weak to unknown, if the network cell is in a shielding state, the shielding can be canceled, and the bandwidth measurement record of the network cell before the network cell is emptied and the like.

It should be noted that if the APN or the dialing parameter of a certain network cell changes, the locking state and the shielding state of the corresponding network cell can be cancelled, the disclosure in the network cell list is clear, the current self-adaptive network selection flow is ended, and the network selection is restarted.

On the basis of the above embodiment, the embodiment of the present application may further include the following steps:

selecting the maximum power and the minimum power in the signal power of the target network cell; and carrying out data processing on the maximum power and the minimum power based on Gaussian distribution to obtain a re-detection threshold value of the target network cell.

As described in connection with the foregoing embodiments, there may be one or more re-inspection thresholds, and different target network cells may be correspondingly provided with different re-inspection thresholds.

Illustratively, the re-detection threshold corresponding to the signal power may be determined by the maximum power and the minimum power in the signal power of the target network cell, where the determining process includes, but is not limited to, the following methods:

The maximum power of RSRP is Its value in dBm units is/>Minimum power of RSRP is/>Its value in dBm units is/>The difference between the maximum power and the minimum power is e, and the correspondence between e and the recheck threshold can be referred to as table 1:

Specifically, in determining the re-inspection threshold, it is known from the definition of variance that if all data are the upper and lower maximum values and the number is exactly half, the variance is the largest, i.e. the variance . Without available prior information, random statistics are typically processed with gaussian distribution data, with standard deviation/>, obtained by scaling of the previous variance. In Gaussian distribution,/>Confidence of 99.9936%. So RSRP appears to be greater than/>The probability of (2) is less than 7% >; scaling again, RSRP appears to be greater than/>Is lower, so can be used/>As a re-inspection threshold. However, RSRP generally uses dBm as a unit, and therefore, RSRP values in dBm unitsAfter data format conversion based on dBm units, the/> -can be obtainedThenDue to/>Is/>Corresponding value in dBm units,/>Is/>The corresponding value in dBm units is/>; So that; And because of/>Wherein/>Is RSRP threshold,/>Is/>Values in dBm units,/>Therefore/>; The following tables 2 and 3 can be determined by calculation:

table 2

TABLE 3

Therefore, as can be seen from table 2 and table 3, when e=1 in table 2, the corresponding value is about 1.776; in Table 3, 1.995 is used to obtain a value greater than 1.776, which corresponds toBecause of=3, the re-inspection threshold in table 1 is obtained as/>+3dBm。

It should be further noted that the main body of the network selection method based on the cellular network may be a network selection apparatus based on the cellular network, for example, the network selection method based on the cellular network may be performed by a terminal device or a server or other processing device, where the terminal device may be a User Equipment (UE), a computer, a mobile device, a User terminal, a cellular phone, a cordless phone, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a handheld device, a computing device, a vehicle-mounted device, a wearable device, or the like. In some possible implementations, the network selection method based on the cellular network may be implemented by a processor invoking computer readable instructions stored in a memory.

Fig. 2 is a block diagram of a cellular network-based network selection apparatus according to an exemplary embodiment of the present application. As shown in fig. 2, the exemplary cellular network-based network selection apparatus 200 includes: a network registration module 210, a screening module 220, a network detection module 230, and a locking module 240. Specifically:

The network registration module 210 is configured to perform network registration processing based on the searched current network cell, and obtain a registration result.

And the shielding module 220 is configured to perform shielding processing on the current network cell in response to the registration result being failure.

The network detection module 230 is configured to perform network detection on the current network cell in response to the successful registration result, so as to obtain a network detection result of the current network cell.

And the locking module 240 is configured to lock the current network cell if the network detection result is available.

In the exemplary network selection device based on the cellular network, the network registration processing is performed on the searched current network cell to obtain a registration result of the current network cell; if the registration result is failure, the current network cell is characterized as not being normally used, and the current network cell is shielded to avoid interference with the subsequent network use process; if the registration result is successful, the current network cell is characterized to be normally used, and network detection is carried out on the current network cell to judge whether the network of the current network cell can meet the use requirement; if the network detection result is available, the current network cell is locked to prevent switching to other network cells, so that the self-adaptive network selection can be realized, and the stability in the process of using the cellular network is improved.

The functions of the respective modules may be referred to in the foregoing embodiments for the embodiments of the network selection method based on the cellular network, which are not described herein.

Referring to fig. 3, fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the application. The electronic device 300 comprises a memory 301 and a processor 302, the processor 302 being adapted to execute program instructions stored in the memory 301 for implementing the steps of any of the above-described embodiments of the network selection method based on a cellular network. In one particular implementation scenario, electronic device 300 may include, but is not limited to: the microcomputer and the server, and the electronic device 300 may also include a mobile device such as a notebook computer and a tablet computer, which is not limited herein.

In particular, the processor 302 is configured to control itself and the memory 301 to implement the steps of any of the above-described embodiments of the cellular network based network selection method. The processor 302 may also be referred to as a CPU (Central Processing Unit ). The processor 302 may be an integrated circuit chip with signal processing capabilities. The Processor 302 may also be a general purpose Processor, a digital signal Processor (DIGITAL SIGNAL Processor, DSP), an Application SPECIFIC INTEGRATED Circuit (ASIC), a Field-Programmable gate array (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. In addition, the processor 302 may be commonly implemented by an integrated circuit chip.

According to the scheme, the network registration processing is carried out on the searched current network cell, so that a registration result of the current network cell is obtained; if the registration result is failure, the current network cell is characterized as not being normally used, and the current network cell is shielded to avoid interference with the subsequent network use process; if the registration result is successful, the current network cell is characterized to be normally used, and network detection is carried out on the current network cell to judge whether the network of the current network cell can meet the use requirement; if the network detection result is available, the current network cell is locked to prevent switching to other network cells, so that the self-adaptive network selection can be realized, and the stability in the process of using the cellular network is improved.

Referring to fig. 4, fig. 4 is a schematic structural diagram of an embodiment of a computer readable storage medium according to the present application. The computer readable storage medium 410 stores program instructions 411 executable by the processor, the program instructions 411 for implementing the steps in any of the above-described embodiments of a cellular network based network selection method.

According to the scheme, the network registration processing is carried out on the searched current network cell, so that a registration result of the current network cell is obtained; if the registration result is failure, the current network cell is characterized as not being normally used, and the current network cell is shielded to avoid interference with the subsequent network use process; if the registration result is successful, the current network cell is characterized to be normally used, and network detection is carried out on the current network cell to judge whether the network of the current network cell can meet the use requirement; if the network detection result is available, the current network cell is locked to prevent switching to other network cells, so that the self-adaptive network selection can be realized, and the stability in the process of using the cellular network is improved.

In some embodiments, functions or modules included in an apparatus provided by the embodiments of the present disclosure may be used to perform a method described in the foregoing method embodiments, and specific implementations thereof may refer to descriptions of the foregoing method embodiments, which are not repeated herein for brevity.

The foregoing description of various embodiments is intended to highlight differences between the various embodiments, which may be the same or similar to each other by reference, and is not repeated herein for the sake of brevity.

In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of modules or units is merely a logical functional division, and there may be additional divisions of actual implementation, e.g., 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 forms.

In addition, each functional unit in the embodiments 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 integrated units may be implemented in hardware or in software functional units. The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

Claims (10)

1. A method of network selection based on a cellular network, the method comprising:

Network registration processing is carried out based on the searched current network cell, and a registration result is obtained;

responding to the failure of the registration result, and carrying out shielding processing on the current network cell;

responding to the successful registration result, carrying out network detection on the current network cell to obtain a network detection result of the current network cell;

and if the network detection result is available, locking the current network cell.

2. The method according to claim 1, wherein the step of performing network detection on the current network cell to obtain a network detection result of the current network cell includes:

performing bandwidth measurement on the current network cell based on preset measurement times to obtain a plurality of current cell bandwidths of the current network cell;

Judging the current cell bandwidth smaller than a preset bandwidth threshold as an abnormal bandwidth, and judging the current cell bandwidth larger than or equal to the bandwidth threshold as a normal bandwidth;

if the ratio between the number of abnormal bandwidths and the preset measurement times is larger than a preset abnormal frequency threshold value, judging that the network detection result is unavailable;

and if the ratio between the number of abnormal bandwidths and the preset measurement times is smaller than or equal to the abnormal frequency threshold value, judging that the network detection result is available.

3. The method according to claim 2, wherein the step of performing bandwidth measurement on the current network cell based on a preset number of measurements to obtain a number of current cell bandwidths of the current network cell includes:

Acquiring signal power and/or signal-to-noise ratio of the current network cell;

if the signal power is smaller than a preset descending threshold value and/or the signal to noise ratio is smaller than the descending threshold value, increasing the preset measurement times to obtain target measurement times;

And carrying out bandwidth measurement of the target measurement times on the current network cell to obtain a plurality of current cell bandwidths of the current network cell, wherein the number of the current cell bandwidths corresponds to the number of the target measurement times.

4. The method according to claim 2, wherein after the step of determining that the network detection result is available if the ratio between the number of abnormal bandwidths and the preset number of measurements is less than or equal to the abnormal frequency threshold, the method further comprises:

acquiring switching frequency of switching network cells in a preset period when the network detection result is available;

if the switching frequency is larger than a preset switching frequency threshold value, locking the current network cell;

And if the switching frequency is smaller than or equal to the switching frequency threshold value, continuously measuring the bandwidth of the current network cell.

5. The method of claim 1, wherein after the step of masking the current network cell in response to the registration result being a failure, the method further comprises:

judging whether the searched other network cells are available;

if the network registration information is available, carrying out network registration processing based on the other network cells to obtain other registration results;

If not, judging whether candidate network cells with weak evaluation types are present in the other network cells;

If so, determining a target network cell in the candidate network cells;

performing network detection on the target network cell to obtain a target network detection result of the target network cell;

and if the target network detection result is available, locking the target network cell.

6. The method of claim 5, wherein the step of determining a target network cell among the candidate network cells comprises:

acquiring the bandwidth of the candidate network cell;

If at least two candidate network cells with different bandwidths exist, selecting a network cell with the largest bandwidth in the candidate network cells as the target network cell;

and if the bandwidths of the candidate network cells are the same, selecting any network cell in the candidate network cells as the target network cell.

7. The method according to claim 5, wherein the step of performing network detection on the target network cell to obtain a target network detection result of the target network cell includes:

acquiring target signal power and/or target signal-to-noise ratio of the target network cell;

if the target signal power is greater than the acquired re-detection threshold and/or the target signal-to-noise ratio is greater than the re-detection threshold, updating the evaluation type of the target network cell to be unknown in network state;

And carrying out bandwidth measurement on the target network cell to obtain the target network detection result.

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

selecting the maximum power and the minimum power in the signal power of the target network cell;

And carrying out data processing on the maximum power and the minimum power based on Gaussian distribution to obtain a re-detection threshold value of the target network cell.

9. An electronic device comprising a memory and a processor for executing program instructions stored in the memory to implement the method of any one of claims 1 to 8.

10. A computer readable storage medium having stored thereon program instructions, which when executed by a processor, implement the method of any of claims 1 to 8.