CN113993185A - Network searching method, network searching device, communication equipment and computer readable storage medium - Google Patents
Network searching method, network searching device, communication equipment and computer readable storage medium Download PDFInfo
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- CN113993185A CN113993185A CN202111107348.7A CN202111107348A CN113993185A CN 113993185 A CN113993185 A CN 113993185A CN 202111107348 A CN202111107348 A CN 202111107348A CN 113993185 A CN113993185 A CN 113993185A
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- 238000012163 sequencing technique Methods 0.000 claims abstract description 23
- 238000004590 computer program Methods 0.000 claims description 13
- 238000012216 screening Methods 0.000 claims description 10
- 238000012913 prioritisation Methods 0.000 claims description 3
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The application relates to a network searching method, a network searching device, communication equipment and a computer readable storage medium. The network searching method comprises the following steps: acquiring a plurality of cells which can be searched at the current position; the multiple cells are subjected to priority sequencing according to the frequency point range of the target operator and the frequency points corresponding to the multiple cells; and trying the cell residence process in sequence according to the priority ranking results of the plurality of cells. According to the network searching method, priority ranking is carried out on a plurality of cells according to the frequency point range of a target operator and the frequency points corresponding to the plurality of cells, so that the cells corresponding to the operators of the user identification cards can be preferentially selected when the cells are selected to try to reside, and the problem that the network searching time is too long due to the fact that the cells which do not correspond to the target operator try to reside in a flow when the cell residing flow is tried is solved.
Description
Technical Field
The present application relates to the field of mobile terminal technologies, and in particular, to a network searching method, a network searching apparatus, a communication device, and a computer-readable storage medium.
Background
A communication device without communication service cannot implement a normal communication service, and to implement a normal communication service, the communication device needs to establish a Mobile Network connection with a Public Land Mobile Network (PLMN for short) where the communication device is located. For communication equipment without communication service, the communication equipment needs to perform cell search and cell selection before establishing mobile network connection. Since a plurality of cells are obtained after cell search, if the searched cells are sequentially analyzed to determine whether the cells are available cells, the network searching time of the communication device may be too long, and the overall performance of the communication device may be affected.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a network searching method, a network searching apparatus, a communication device, and a computer-readable storage medium, which can shorten the network searching time of the communication device.
In a first aspect, a network searching method for a mobile terminal is provided, including:
acquiring a plurality of cells which can be searched at the current position;
the multiple cells are subjected to priority sequencing according to the frequency point range of the target operator and the frequency points corresponding to the multiple cells; the priority of the cell located in the frequency point range of the target operator is the highest, and the target operator is the operator to which the user identification card currently used by the communication equipment belongs;
and sequentially trying the cell residence process according to the priority ranking results of the plurality of cells.
In one embodiment, the method further comprises:
according to the signal intensity, carrying out priority sequencing on the cells positioned in the frequency point range of the target operator; the cell with high signal strength has higher priority than the cell with low signal strength.
In one embodiment, after the step of sequentially attempting the cell camping procedure according to the result of the prioritization of the plurality of cells, the method further includes:
if the communication equipment successfully resides in the available cell, storing the frequency point corresponding to the available cell, and taking the frequency point of the available cell as the prior frequency point of the communication equipment; wherein the available cell is one of a plurality of cells that can be searched at the current location.
In one embodiment, the network searching method further includes:
reading the identity information of a user identification card of the communication equipment;
and determining the frequency point range of the target operator according to the identity information.
In one embodiment, the step of acquiring a plurality of cells searched within a set frequency band range includes:
screening the prior frequency points of the communication equipment according to the frequency point range of the target operator to determine target frequency points;
and if the cell corresponding to the target frequency point is searched, trying a cell residence process according to the cell corresponding to the target frequency point.
In one embodiment, the step of acquiring a plurality of cells searched within a set frequency range includes:
and if the cell corresponding to the target frequency point is not searched, acquiring a plurality of gulls which can be searched at the current position.
In one embodiment, the step of performing screening processing on the prior frequency points of the communication device according to the frequency point range of the target operator includes:
and under the condition that the communication equipment is started or covers the area from the blind area to the coverage area, screening the prior frequency point of the communication equipment according to the frequency point range of the target operator.
In a second aspect, a network searching apparatus is provided, including:
the system comprises an acquisition module, a searching module and a searching module, wherein the acquisition module is used for acquiring a plurality of cells which can be searched at the current position;
the sequencing module is used for sequencing the priority of the plurality of cells according to the frequency point range of the target operator and the frequency points corresponding to the plurality of cells; the priority of the cell located in the frequency point range of the target operator is the highest, and the target operator is the operator to which the user identification card currently used by the communication equipment belongs;
and the residing module is used for sequentially trying the cell residing flow according to the priority ranking results of the plurality of cells.
In a third aspect, a communication device is provided, which includes a memory and a processor, the memory stores a computer program, and the computer program is executed by the processor to implement the network searching method according to any one of the first aspect.
In a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored, which when executed by a processor implements the network searching method according to any one of the first aspect.
According to the network searching method provided by the embodiment of the application, the priority ranking is carried out on the plurality of cells according to the frequency point range of the target operator and the frequency points corresponding to the plurality of cells, so that the cells corresponding to the operators of the user identification cards can be preferentially selected when the cells are selected to try to reside, and the problem that the network searching time is too long due to the fact that the residence processes are tried on the plurality of cells which do not correspond to the target operator when the residence processes of the cells are tried is solved. In the process of trying the cell residence process, the communication device cannot judge that the cell not corresponding to the operator is not available until the communication device receives the system message corresponding to the cell to acquire the PLMN, so that the residence process is tried for the next cell, which results in an excessively long network searching time. Therefore, the network searching method preferentially tries the cell residence process to the cell corresponding to the target operator, so that the network searching time of the communication equipment can be shortened, and the network searching power consumption is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flowchart of a network searching method in a first embodiment;
fig. 2 is a schematic flowchart of a method for determining a frequency point range of a target operator in an embodiment;
FIG. 3 is a flowchart illustrating a network searching method according to a second embodiment;
fig. 4 is a flowchart illustrating a network searching method according to a third embodiment;
FIG. 5 is a block diagram of a web searching apparatus according to an embodiment;
fig. 6 is an internal configuration diagram of a communication device in one embodiment.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
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 in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments is understood to mean "electrical connection", "communication connection", or the like, if there is a transfer of electrical signals or data between the connected objects.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.
As described in the background, attempting a camp-on procedure for multiple cells may result in a communication device that searches for a network for too long. When an operator to which a subscriber identity module card configured by the communication device belongs is a first operator, the communication device acquires a cell corresponding to a second operator in a network searching process, the communication device needs to receive system information corresponding to the cell and analyze the system information, the cell corresponding to the second operator is known to be unavailable only when the PLMN is acquired, then the communication device reads the system information of a next cell and judges whether the next cell is available, and then the communication device needs to try for many times to find the available cell, so that the network searching time of the communication device is too long, and the overall performance of the communication device is affected. It should be noted that the operator is a provider of network services.
In view of this, an embodiment of the present application provides a network searching method for a communication device, in which the communication device performs priority ranking on multiple cells according to a frequency point range of a target operator and a frequency point of a cell searched within a set frequency range, so as to preferentially select a cell corresponding to an operator of a subscriber identity module card when selecting a cell to attempt to camp on, thereby avoiding a problem that network searching time is too long due to the fact that the communication device attempts to camp on a plurality of cells that do not correspond to the target operator when attempting to camp on a cell flow. In the process of trying the cell residence process, the communication device cannot judge that the cell not corresponding to the operator is not available until the communication device receives the system message corresponding to the cell to acquire the PLMN, so that the residence process is tried for the next cell, which results in an excessively long network searching time. Therefore, the network searching method of the communication equipment preferentially attempts the cell residence process to the cell corresponding to the target operator, so that the network searching time of the communication equipment can be shortened.
Next, a brief description will be given of an implementation environment related to the network searching method of the communication device provided in the embodiment of the present application.
The network searching method provided by the embodiment of the application can be suitable for any type of communication equipment without communication service, such as communication equipment after starting up, communication equipment exiting from a flight mode, communication equipment entering a coverage area from a blind area, and the like. This communication equipment can be for cell-phone, panel computer, intelligent wearing equipment, notebook computer, intelligent car, intelligent house etc to and can be for having the module of communication function, this application embodiment does not do specifically and restricts to this.
Please refer to fig. 1, which illustrates a network searching method according to a first embodiment of the present application, where the network searching method may include steps S102 to S106.
S102, a plurality of cells which can be searched out at the current position are obtained.
It should be noted that the multiple cells that can be searched at the current location include frequency point information or frequency information of the multiple cells. It should be noted that the current location is a location where the communication device is located in the network searching process. Optionally, the step of "acquiring a plurality of cells that can be searched at the current location" may include: and carrying out cell search in a set frequency range. Optionally, the set frequency range may be a full frequency range or a partial frequency range. In one embodiment, the cell search is performed over the full frequency band. In one embodiment, the communication device is a mobile phone terminal, a PHY layer of the mobile phone terminal performs cell search in a full frequency band range under an instruction of an RRC layer, and the RRC layer of the mobile phone terminal receives a plurality of searched cells reported by the PHY layer. Optionally, the communication device obtains a cell list formed by a plurality of cells searched within the set frequency range, where the cell list includes frequency point and/or frequency band information of the plurality of cells.
And S104, carrying out priority sequencing on the plurality of cells according to the frequency point range of the target operator and the frequency points corresponding to the plurality of cells.
It should be noted that the operator is a provider of network services. Operators may include, but are not limited to: china mobile communication group company (china mobile for short), china union network communication group limited company (china unicom for short), and china telecom group (china telecom for short). It can be understood that different operators support different frequency ranges, the frequency range supported by china mobile is 935MHz to 954MHz, the frequency range supported by china unicom is 954MHz to 960MHz and 1850MHz to 1860MHz, and the frequency range supported by china telecom is 870MHz to 885 MHz. It should be noted that the target carrier is a carrier to which the subscriber identity card currently used by the communication device belongs. The subscriber identity card may comprise a SIM card or a USIM card. The user identification card currently used by the communication equipment is a user identification card inserted into a card slot of the communication equipment, and the user identification card is an SIM card or an USIM card currently used for searching, holding and surfing the network.
It should be noted that the priority of the cell located within the frequency point range of the target operator is the highest, that is, the priority of the cell whose frequency point is located within the frequency point range of the target operator is higher than the priority of the cell whose frequency point is located outside the frequency point range of the target operator. Optionally, the obtained cell list is subjected to priority ordering according to the frequency point range and the cell frequency points of the target operator, a cell in the cell list, which is located within the frequency point range of the target operator, is arranged in front of the list, a first cell in the cell list, which is located outside the frequency point range of the target operator, is arranged behind the list, and the cell list subjected to priority ordering is obtained.
In an optional embodiment of the present application, the network searching method may further include: and carrying out priority sequencing on the cells positioned in the frequency point range of the target operator according to the signal intensity. The cell with high signal intensity in the frequency point range of the target operator has higher priority than the cell with low signal intensity in the frequency point range of the target operator. In the embodiment of the application, the cell residence process is preferentially tried on the cell which is located in the frequency point range of the target operator and has high signal strength, and because the cell with higher signal strength has higher residence success rate of the terminal equipment in the cell, the time for searching the network by the communication equipment can be further shortened by performing priority sequencing on the cell which is located in the frequency point range of the target operator according to the signal strength.
In an optional embodiment of the present application, the network searching method may further include: and carrying out priority sequencing on cells which are not positioned in the frequency point range of the target operator according to the signal intensity. The priority of the cell with high signal intensity which is not located in the frequency point range of the target operator is higher than that of the cell with low signal intensity which is not located in the frequency point range of the target operator. In the embodiment of the application, the communication device tries the residence process for the cell which is not located in the frequency point range of the target operator but has high signal strength under the condition that all cells located in the frequency point range of the target operator cannot be successfully resided, so that the network searching time of the communication device is shortened.
And S106, sequentially trying the cell residence process according to the priority ranking results of the plurality of cells.
It should be noted that, according to the priority ranking results of multiple cells, cell camping procedures are tried in sequence from high to low according to the priority. It should be noted that the cell camping procedure includes the steps of reading the system message and camping on the cell. It should be noted that the purpose of attempting the cell camping procedure in sequence is to camp the communication device on an available cell, and therefore, the communication device may not acquire all of the available cells, and thus, the communication device may determine whether the cell is an available cell by reading the system information, and if the cell is an available cell, perform the camping procedure. Optionally, the process of attempting cell camping in sequence may include reading system information corresponding to the cell in sequence, and performing a cell camping step according to the read system information, thereby completing cell camping. Optionally, the communication device first reads system information corresponding to a cell with the highest priority, and judges whether the cell meets a residence condition according to an S criterion, and if the cell meets the residence condition, the communication device performs cell residence; if the cell does not meet the residence condition, the communication equipment reads the system information corresponding to the cell with the second highest priority, judges whether the cell meets the residence condition according to the S criterion, and sequentially executes the steps until the cell residence process is completed.
According to the network searching method provided by the embodiment of the application, priority sequencing is carried out on a plurality of cells according to the frequency point range and the cell frequency point of the target operator, so that the cells corresponding to the operators of the user identification cards can be preferentially selected when the cells are selected to try to reside, and the problem that the network searching time is too long due to the fact that the residence process is tried on a plurality of cells which do not correspond to the target operator when the residence process of the cells is tried is solved. In the process of trying the cell residence process, the communication device cannot judge that the cell not corresponding to the operator is not available until the communication device receives the system message corresponding to the cell to acquire the PLMN, so that the residence process is tried for the next cell, which results in an excessively long network searching time. Therefore, the network searching method preferentially tries the cell residence process to the cell corresponding to the target operator, so that the network searching time of the communication equipment can be shortened, and the network searching power consumption is reduced.
Meanwhile, the priority ranking is carried out on the cells which can be searched at the current position, instead of only the cells corresponding to the frequency point range of the target operator, so that the risk can be reduced, and the situation that when the cells corresponding to the frequency point range of the target operator are searched and do not meet the residence condition, the communication equipment cannot reside in other cells which do not correspond to the target operator is avoided. That is, the network searching method provided in the embodiment of the present application may obtain the cell that does not correspond to the target operator, so that when none of the first cells that correspond to the target operator satisfies the camping condition, the communication device may also camp on the first cell that does not correspond to another target operator, thereby reducing the risk.
In the above embodiment, priority ordering needs to be performed on multiple cells according to the frequency point range of the target operator and the frequency point of the cell, and then, how to determine the frequency point range of the target operator in the embodiment of the present application will be briefly described below.
Please refer to fig. 2, which illustrates a method for determining a frequency point range of a target operator according to an embodiment of the present application, where the method for determining the frequency point range of the target operator may include steps S202 to S204.
S202, reading the identity information of the user identification card of the communication equipment.
It should be noted that the operator to which the subscriber identity card belongs may be obtained by reading identity information of the subscriber identity card of the communication device.
And S204, determining the frequency point range of the target operator according to the identity information.
Alternatively, the identity information may include, but is not limited to, an International Mobile Subscriber Identity (IMSI) signal or an Integrated Circuit Card Identity (ICCID) signal. Optionally, the target operator may be determined according to a Mobile Network Code (MNC) in the IMSI number. It should be noted that the china mobile system uses 00, 02, 04, 07, the china unicom GSM system uses 01, 06, 09, the china telecommunication CDMA system uses 03, 05, and the china telecommunication 4G uses 11. Therefore, the operator of the subscriber identity card currently used by the communication equipment can be known by reading the MNC in the IMSI code.
Optionally, the correspondence between the identity information of the user identification card and the operator is stored in the communication device. Optionally, the communication device stores operator frequency point information, where the operator frequency point information includes identity information of the user identification card and frequency point information corresponding to the identity information of the user identification card. The communication equipment reads the identity information of the user identification card of the communication equipment, and inquires the frequency point information corresponding to the identity information from the operator frequency point information stored in the communication equipment according to the identity information, so that the frequency point range of a target operator can be determined.
In an alternative embodiment of the present application, the identity information may include an integrated circuit card identification code. In an alternative embodiment of the present application, the method for determining the frequency point range of the target operator may include steps S202a to S204 a.
S202 a: reading the ICCID information of the user identification card;
it should be noted that the ICCID information corresponding to different operators is different, so the operator to which the subscriber identity card belongs can be obtained according to the ICCID information. Optionally, the first 6 digits of the ICCID of the subscriber identification card are read. It can be understood that, in the case that the first 6 digits of the ICCID are 898600, 898602, 898604, 89607, the carrier to which the subscriber identity card belongs is china mobile; under the condition that the first 6 digits of the ICCID are 898601, 898606 and 898609, the operator to which the user identification card belongs is China Unicom; in the case that the first 6 digits of the ICCID are 898603 and 898611, the carrier to which the subscriber identity card belongs is china telecom.
S204 a: and determining the frequency point range of the target operator according to the ICCID information of the user identification card.
It should be noted that the ICCID information of the subscriber identity card can uniquely determine the target operator, i.e. one piece of ICCID information corresponds to only one operator, so that the target operator can be determined according to the ICCID information of the subscriber identity card. Optionally, the frequency point range of the target operator is determined according to the first 6-digit number of the ICCID information of the subscriber identity module card. Optionally, the communication device presets a corresponding relationship between the ICCID information and the frequency band range of the target operator. And determining the target frequency range according to the corresponding relation between the ICCID information and the frequency range of the target operator, and calculating the target frequency range according to the corresponding relation between the frequency range and the frequency point, thereby obtaining the frequency point range of the target operator corresponding to the ICCID signal of the user identification card. Optionally, the communication device presets a corresponding relationship between the ICCID information and the frequency point range of the target operator. And obtaining the frequency point range of the target operator corresponding to the ICCID signal of the user identification card through the corresponding relation between the ICCID information and the frequency point range of the target operator.
Optionally, a priori frequency point storage unit is arranged in the communication device, and the priori frequency point storage unit stores the priori frequency points. The communication equipment can maintain some frequency points as prior information to search so as to accelerate the speed of searching the cell of the communication equipment, wherein the frequency points are the prior frequency points. Optionally, the a priori frequency point includes, but is not limited to, a frequency point in which the communication device successfully registers. Optionally, the a priori frequency bin storage unit may be a non-volatile memory (NV). Optionally, the number of the prior frequency points that can be stored in the prior frequency point storage unit is 9 to 11. Optionally, the a priori frequency point storage unit may store 10 a priori frequency points. The embodiment stores 10 prior frequency points in the communication equipment, so that the excessive occupation of the storage space of the communication equipment can be avoided, and the network searching speed of the next communication equipment can be increased.
At present, when a target operator of a communication device is changed, for example, an operator corresponding to a subscriber identity card in front of the communication device is a first operator, and an operator corresponding to a subscriber identity card of the communication device is a second operator, the prior frequency points stored in the communication device are not processed or are all removed, and a slow search stage is directly entered under a network search condition (slow search refers to performing full-band search). Because the target operator before the communication device is the first operator, if the prior frequency points are not processed, most of the prior frequency points existing in the prior frequency points are probably the frequency points corresponding to the first operator, so that a plurality of searched prior frequency points are useless frequency points. However, for a network with a wide NBIOT coverage and infrequent cell switching, there may be a frequency point corresponding to the second operator in the prior frequency points, and if the prior frequency points are all removed, it may be clear that there are available prior frequency points, but the prior frequency points are removed.
In an optional embodiment of the present application, when the communication device is powered on or enters a coverage area from a blind area, the prior frequency point of the communication device is screened according to the frequency point range of the target operator. It should be noted that the blind area is an area that cannot be covered by the signals of each base station, and the coverage area is an area covered by the signals of at least one base station. The description of the method for determining the frequency point range of the target operator is detailed in the above embodiments, and is not repeated herein. It should be noted that, among the prior frequency points stored in the communication device, the frequency point located within the frequency point range of the target operator is taken as the target frequency point, and the frequency points located outside the frequency point range of the target operator are screened out.
Please refer to fig. 3, which illustrates a network searching method according to an embodiment of the present application, where the network searching method may include steps S302 to S304.
S302, screening the prior frequency points of the communication equipment according to the frequency point range of the target operator, and determining the target frequency points.
It should be noted that, of the prior frequency points stored in the communication device, the frequency point located within the frequency point range of the target operator is taken as the target frequency point.
And S304, if the cell corresponding to the target frequency point is searched, trying a cell residence process according to the cell corresponding to the target frequency point.
It should be noted that when a cell corresponding to the target frequency point is searched, that is, a cell consistent with the target frequency point is searched, a cell residence process is attempted, and whether the cell meets the residence conditions is analyzed.
Optionally, before the step of attempting the cell camping procedure, the method may further include: and carrying out priority sequencing on the searched cells corresponding to the target frequency points according to the signal intensity, and sequentially trying cell residence processes according to the priority sequencing result of the cells. Note that the priority of a cell having a high signal strength is higher than that of a cell having a low signal strength. Optionally, the communication device first reads system information corresponding to a cell with the highest priority, and judges whether the cell meets a residence condition according to an S criterion, and if the cell meets the residence condition, the communication device performs cell residence; if the cell does not meet the residence condition, the communication equipment reads the system information corresponding to the cell with the second highest priority, judges whether the cell meets the residence condition according to the S criterion, and sequentially executes the steps until the cell residence process is completed or all the cells corresponding to the target frequency point do not meet the residence condition. In an optional embodiment of the present application, if none of the cells corresponding to the target frequency point satisfies the camping condition, a cell that can be searched at the current location is obtained. It can be understood that if the cell corresponding to the target frequency point meets the camping condition, the cell camping process is completed, and the communication device does not acquire the cell that can be searched at the current position any more.
In the embodiment, before the step of acquiring the cells searched in the set frequency band range, the target frequency points in the prior frequency points are searched, and the plurality of cells which can be searched in the current position are acquired only when the available cells cannot be searched on the target frequency points, so that the problem of excessive time consumption caused by directly acquiring the cells which can be searched in the current position can be avoided.
Optionally, the step of "determining a target frequency point" may further include the following steps: and searching the cell according to the target frequency point. It should be noted that performing cell search according to the target frequency point refers to searching for a cell corresponding to the target frequency point, that is, the frequency point of the searched cell is consistent with the target frequency point.
In an optional embodiment of the present application, if a cell corresponding to a target frequency point is not searched, a plurality of cells that can be searched at a current location are obtained. It should be noted that the technical process of "acquiring multiple cells that can be searched at the current location" is detailed in the above embodiments, and is not described herein again.
Optionally, if the cells corresponding to the target frequency points are not searched in all the target frequency points, the cells are searched in the set frequency band range to obtain a plurality of cells corresponding to the set frequency band range. Optionally, the set frequency band range may be a full frequency band range. Optionally, the set frequency band range may be a full frequency band range after the prior frequency point is removed, that is, when a cell is searched, the prior frequency point is not searched any more, so as to save time required for searching a network.
In the embodiment, the identity information of the subscriber identity card is preferentially read to obtain the operator information, the prior frequency points are screened according to the operator, and the target frequency points are determined to be subjected to fast search (cell search is performed on the target frequency points), so that the problem that the network searching time is too long due to the fact that all the prior frequency points are searched, or the network searching time is too long due to the fact that all the prior frequency points are removed is solved.
In an optional embodiment of the present application, after the step of determining the target frequency point, the method may further include: and carrying out priority sequencing on the target frequency points according to the signal intensity, and sequentially carrying out cell search according to the sequencing result of the target frequency points. It should be noted that the higher the priority of the target frequency point with stronger signal strength, the higher the priority of the target frequency point, that is, the higher the priority of the target frequency point is. Because the target frequency point with stronger signal intensity is more likely to search the available cells on the frequency point, the target frequency points are subjected to priority sequencing according to the signal intensity, and cell search is sequentially carried out according to sequencing results, so that the network searching efficiency can be improved.
The foregoing embodiment screens the prior frequency points to obtain the target frequency points, and a method for obtaining the prior frequency points of the communication device is provided below.
In an optional embodiment of the present application, if the camping on the available cell is successful, the frequency point corresponding to the available cell is stored, and the frequency point of the available cell is used as the prior frequency point of the communication device. It should be noted that the available cell is one of a plurality of cells that can be searched for at the current location. Information corresponding to the available cells, including but not limited to frequency point information of the available cells, may be stored in the prior frequency point storage unit.
In one embodiment, when the number of the prior frequency points in the prior frequency point storage unit is a target number, and the frequency points corresponding to the available cells need to be stored, the earliest stored prior frequency point in the prior frequency point storage unit is deleted, and the frequency points corresponding to the available cells are stored in the prior frequency point storage unit, so that the number of the prior frequency points in the prior frequency point storage unit is maintained as the target number. The target number may be, for example, 10.
The communication device is layered when implementing a communication protocol, and is divided into a Non-Access Stratum (NAS), a Radio Resource Control (RRC), and a Physical layer (PHY). From the view of the process of searching the network, the NAS layer can be used to transmit user information or control information. The RRC layer supports signaling protocols for various functions between the communication device and the base station, broadcasts system information of the NAS layer, establishes, maintains, and releases RRC connections, establishes, modifies, and releases end-to-end radio bearers (e.g., radio access network links from a terminal to a base station), and performs mobility management including functions such as measurement reporting of the communication device (UE), cell handover, and reselection. The PHY layer is located at the lowest layer and is mainly responsible for performing modulation and demodulation, antenna mapping or other telecommunication physical layer functions, and the communication device can communicate with the base station through the PHY layer.
Please refer to fig. 4, which illustrates a network searching method according to a third embodiment of the present application, and the method may include S402 to S412.
S402, the NAS layer reads the identity information of the user identification card and acquires a Public Land Mobile Network (PLMN).
S404, the NAS layer sends the identity information of the user identification card to the RRC layer and indicates the RRC layer to search the cell.
S406, the RRC layer determines the frequency point range of the target operator according to the identity information of the user identification card, and the RRC layer indicates the PHY layer to search the cell.
S408, the PHY layer reports the plurality of cells which can be searched at the current position to the RRC layer, and the RRC layer receives the plurality of searched cells reported by the PHY layer and performs priority sequencing on the plurality of cells according to the frequency point range of the target operator and the frequency points corresponding to the plurality of cells.
S410, the RRC layer sends the cells to the PHY layer in sequence according to the priority sequencing result of the cells, and the PHY layer feeds back the check codes and the system information corresponding to the cells to the RRC layer.
And S412, the RRC layer analyzes whether the cell meets the residence principle according to the check code and the system information, and if so, the PHY layer is informed to stop cell search and the NAS layer is informed to find an available cell.
After step S412, the network searching method may further include the NAS layer initiating network registration.
The communication equipment uses the mobile card and the communication card alternately, namely the target operator of the communication equipment at some time is China Mobile, and the target operator at other time is China communication. The communication equipment stores 10 prior frequency points, the 10 prior frequency points are recorded in a prior frequency point list, and the prior frequency points are cell frequency points which are registered by the communication equipment before. Taking NBIOT network registration after the communication device is powered on as an example, a network searching process of the communication device is briefly described.
The communication equipment reads the ICCID information of the SIM card after being started, acquires the operator information through the first 6 bits of the ICCID, acquires the target operator as China Mobile through the first 6 bits of the ICCID, calculates the frequency range and the frequency point range supported by the China Mobile, and can calculate the frequency range of the China Mobile as Band 8953 MHz to 954MHz and the corresponding frequency point range is 3550 plus 3740. And reading the prior frequency point list from NV, and then screening out the frequency point between 3550 and 3740 as a target frequency point. Firstly, searching by using a target frequency point, if no available cell is searched, executing full-band search to obtain a plurality of cells, sequencing the plurality of cells, and arranging the cells corresponding to the frequency point range moved by China in front. The embodiment can search the available cells preferentially and accelerate the network searching speed.
It should be understood that although the various steps in the flowcharts of fig. 1-4 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 1-4 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternately with other steps or at least some of the other steps or stages.
Referring to fig. 5, a network searching apparatus 500 according to an embodiment of the present application is shown, where the network searching apparatus 500 may include an obtaining module 502, a sorting module 504, and a residing module 506. Specifically, the obtaining module 502 may be configured to obtain a plurality of cells that can be searched out at the current location. The sorting module 504 may be configured to perform priority sorting on multiple cells according to the frequency point range of the target operator and the frequency points corresponding to the multiple cells. And the priority of the cell positioned in the frequency point range of the target operator is the highest, and the target operator is the operator to which the user identification card currently used by the communication equipment belongs. The camping module 506 may be configured to sequentially attempt the cell camping procedure according to the result of the prioritization of the plurality of cells.
In an optional embodiment of the present application, the sorting module may further be configured to perform priority sorting on cells located within a frequency point range of a target operator according to the signal strength. The cell with high signal strength has higher priority than the cell with low signal strength.
In an optional embodiment of the present application, the network searching apparatus may further include a storage module. Specifically, the storage module is configured to store a frequency point corresponding to the available cell if the user successfully camps on the available cell, and use the frequency point of the available cell as a prior frequency point of the communication device. The available cell is one of a plurality of cells which can be searched at the current position.
In an optional embodiment of the present application, the network searching apparatus may further include a reading module and a determining module. In particular, the reading module may be configured to read identity information of a subscriber identity card of the communication device. The determining module may be configured to determine the frequency point range of the target operator according to the identity information of the subscriber identity card of the communication device.
In an optional embodiment of the present application, the network searching apparatus may further include a target frequency point determining module and a target frequency point residing module. Specifically, the target frequency point determining module is configured to perform screening processing on the prior frequency point of the communication device according to the frequency point range of the target operator, and determine the target frequency point. And the target frequency point residing module is used for trying a cell residing flow according to the cell corresponding to the target frequency point if the cell corresponding to the target frequency point is searched.
In an optional embodiment of the present application, the obtaining module may be further configured to obtain multiple cells that can be searched at the current location if a cell corresponding to the target frequency point is not searched.
In an optional embodiment of the present application, the target frequency point determining module may be further configured to, when the communication device is turned on or enters the coverage area from a blind area, perform screening processing on the prior frequency point of the communication device according to the frequency point range of the target operator.
For specific limitations of the network searching apparatus, reference may be made to the above limitations of the network searching method, which is not described herein again. All or part of the modules in the network searching device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.
In an alternative embodiment of the present application, a communication device is provided, the internal structure of which may be as shown in fig. 6. It should be noted that the communication device may be a mobile phone, a tablet computer, a notebook computer, an intelligent automobile, an intelligent home, or the like, and may be one of modules having a communication function. The communication device comprises a processor, a memory, a communication interface, a display screen and an input device which are connected through a system bus. Wherein the processor of the communication device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The communication interface of the communication device is used for carrying out wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, an operator network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a network searching method. The display screen of the communication equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the communication equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the communication equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the configuration shown in fig. 6 is a block diagram of only a portion of the configuration associated with the present application and does not constitute a limitation on the communication device to which the present application applies, and that a particular communication device may include more or less components than those shown, or combine certain components, or have a different arrangement of components.
In an optional embodiment of the present application, a communication device is provided, which includes a memory and a processor, where the memory stores a computer program, and the processor implements the steps in the network searching method embodiments when executing the computer program.
In an alternative embodiment of the present application, a computer-readable storage medium is provided, on which a computer program is stored, which, when being executed by a processor, implements the steps in the above-mentioned searching method embodiments.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A network searching method is characterized by comprising the following steps:
acquiring a plurality of cells which can be searched at the current position;
the multiple cells are subjected to priority sequencing according to the frequency point range of the target operator and the frequency points corresponding to the multiple cells; the priority of the cell located in the frequency point range of the target operator is the highest, and the target operator is the operator to which the user identification card currently used by the communication equipment belongs;
and trying the cell residence process in sequence according to the priority ranking results of the plurality of cells.
2. The method for searching for a network according to claim 1, wherein the method further comprises:
carrying out priority sequencing on cells located in the frequency point range of the target operator according to the signal intensity; the cell with high signal strength has higher priority than the cell with low signal strength.
3. The network searching method according to claim 1 or 2, wherein after the step of sequentially attempting the cell camping procedure according to the result of the prioritization of the plurality of cells, further comprising:
if the usable cell is successfully resided, storing the frequency point corresponding to the usable cell, and using the frequency point of the usable cell as a prior frequency point of the communication equipment; wherein the available cell is one of a plurality of cells which can be searched out from the current position.
4. The network searching method according to claim 1, further comprising:
reading the identity information of a user identification card of the communication equipment;
and determining the frequency point range of the target operator according to the identity information.
5. The network searching method according to claim 1 or 2, wherein the step of acquiring the plurality of cells searched within the set frequency band comprises:
screening the prior frequency points of the communication equipment according to the frequency point range of the target operator to determine target frequency points;
and if the cell corresponding to the target frequency point is searched, trying a cell residence process according to the cell corresponding to the target frequency point.
6. The network searching method according to claim 5, wherein the step of acquiring the plurality of cells searched within the set frequency band comprises:
and if the cell corresponding to the target frequency point is not searched, acquiring a plurality of cells which can be searched at the current position.
7. The network searching method according to claim 5, wherein the step of performing the screening process on the prior frequency points of the communication device according to the frequency point range of the target operator comprises:
and under the condition that the communication equipment is started or enters a coverage area from a blind area, screening the prior frequency points of the communication equipment according to the frequency point range of the target operator.
8. A network searching device is characterized by comprising:
the system comprises an acquisition module, a searching module and a searching module, wherein the acquisition module is used for acquiring a plurality of cells which can be searched at the current position;
the sequencing module is used for sequencing the priority of the plurality of cells according to the frequency point range of the target operator and the frequency points corresponding to the plurality of cells; the priority of the cell located in the frequency point range of the target operator is the highest, and the target operator is the operator to which the user identification card currently used by the communication equipment belongs;
and the residing module is used for sequentially trying the cell residing flow according to the priority ranking results of the plurality of cells.
9. A communication device comprising a memory and a processor, the memory storing a computer program, wherein the processor when executing the computer program implements the steps of the network searching method of the communication device according to any one of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 7.
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