CN108668340B

CN108668340B - Network searching method, terminal device and computer readable storage medium

Info

Publication number: CN108668340B
Application number: CN201810859153.XA
Authority: CN
Inventors: 王旭康
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-07-31
Filing date: 2018-07-31
Publication date: 2021-02-12
Anticipated expiration: 2038-07-31
Also published as: CN108668340A; WO2020024689A1

Abstract

The invention discloses a network searching method, which comprises the following steps: acquiring a Public Land Mobile Network (PLMN) identifier and reading a local PLMN file; the local PLMN file is used for storing a PLMN identification corresponding to an operator only deploying a Long Term Evolution (LTE) network; and if the PLMN identification is matched with the local PLMN file, only searching the LTE network corresponding to the PLMN identification according to the PLMN identification to register and access the LTE network. The embodiment of the invention also discloses a terminal and a computer readable storage medium.

Description

Network searching method, terminal device and computer readable storage medium

Technical Field

The present invention relates to the field of mobile communications technologies, and in particular, to a network search method, a terminal device, and a computer-readable storage medium.

Background

In practical application, operator networks deployed in different countries and regions are different; however, to save the cost of network deployment, many operators only deploy Long Term Evolution (LTE) networks, such as the JIO operators in india.

At present, terminal equipment still uses the existing network searching technology in an area where only an LTE network is deployed, that is, a full-band network is searched; that is, when the terminal performs network search, it needs to search not only the LTE network but also networks corresponding to 3G and 2G.

However, using such a conventional network search method in a region where only an LTE network is deployed will undoubtedly prolong the network search time; in addition, in an area where networks corresponding to 3G and 2G are preferentially searched, the terminal device may search for networks corresponding to 3G and 2G all the time, so that the terminal device may not normally access the networks, and the customer complaint amount is increased.

Disclosure of Invention

In order to solve the above technical problem, embodiments of the present invention provide a network search method, a terminal device, and a computer-readable storage medium.

The embodiment of the invention provides a network searching method, which comprises the following steps:

acquiring a Public Land Mobile Network (PLMN) identifier and reading a local PLMN file; the local PLMN file is used for storing a PLMN identification corresponding to an operator only deploying a Long Term Evolution (LTE) network;

and if the PLMN identification is matched with the local PLMN file, only searching the LTE network corresponding to the PLMN identification according to the PLMN identification to register and access the LTE network.

An embodiment of the present invention further provides a terminal device, where the terminal device includes: an acquisition unit and a processing unit, wherein:

the acquiring unit is used for acquiring a Public Land Mobile Network (PLMN) identifier and reading a local PLMN file; the local PLMN file is used for storing a PLMN identification corresponding to an operator only deploying an LTE network;

and the processing unit is used for searching only the LTE network corresponding to the PLMN identification according to the PLMN identification to register and access the LTE network if the PLMN identification is matched with the local PLMN file.

An embodiment of the present invention further provides a terminal device, where the terminal device includes: a processor and a memory for storing a computer program capable of running on the processor,

wherein the processor is configured to execute the steps of the network search method when running the computer program.

Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps of any one of the above methods.

The network searching method, the terminal device and the computer readable storage medium provided by the embodiment of the invention firstly obtain a Public Land Mobile Network (PLMN) identification and read a local PLMN file; the local PLMN file is used for storing a PLMN identification corresponding to an operator only deploying a Long Term Evolution (LTE) network; if the PLMN identification is matched with the local PLMN file, only searching an LTE network corresponding to the PLMN identification according to the PLMN identification to register and access the LTE network; in this way, by matching the PLMN identifier with the identifier of only the LTE-deployed network stored in the terminal device, it can be known whether the current operator only deploys the LTE network, and if the determination result is yes, the terminal device only searches for the LTE network corresponding to the PLMN; therefore, only the LTE network is searched in the area where only the LTE network is deployed, the timeliness of network search can be improved, and meanwhile, the quitting rate caused by abnormal network search and the complaint amount of customers are reduced.

Drawings

Fig. 1 is a schematic flowchart of a network searching method according to an embodiment of the present invention;

fig. 2 is a schematic flow chart of another network searching method according to an embodiment of the present invention;

fig. 3 is a schematic system architecture diagram of a network searching method according to an embodiment of the present invention;

FIG. 4 is a flow chart illustrating another network searching method according to an embodiment of the present invention;

fig. 5 is a schematic structural component diagram of a terminal device according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a hardware structure of a terminal device according to an embodiment of the present invention.

Detailed Description

So that the manner in which the features and aspects of the embodiments of the present invention can be understood in detail, a more particular description of the embodiments of the invention, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings.

In practical application, the terminal equipment searches the current network after being started or restarted; generally, the terminal device performs full-band search on the current network, including the LTE network and the networks corresponding to 2G and 3G, to complete network registration.

With the continuous expansion of the application range of the LTE network and the saving of the cost of network deployment, many operators do not build 2G and 3G networks, but only deploy the LTE network; under the condition, the terminal equipment still uses the original network searching method, and the time of network searching cannot be increased, so that the efficiency of network searching is reduced; even, the terminal device may search for networks corresponding to 3G and 2G all the time, so that the terminal device may not normally access the networks, and the customer complaint amount may increase.

In order to solve the problem of network search abnormality caused by incomplete network deployment, the embodiment of the invention provides a network search method, wherein the searched PLMN identification is compared with the PLMN identification which is locally stored and is only deployed with the LTE network, and whether the operator corresponding to the currently searched PLMN identification is the operator which is only deployed with the LTE network is judged; if the judgment result is yes, the terminal device does not search the networks corresponding to the 2G and the 3G, but only searches and registers the LTE network, so that the timeliness of network search is improved, and meanwhile, the withdrawal probability caused by network search abnormality and the complaint amount of customers are reduced.

Fig. 1 is a schematic flow chart of a network search method according to an embodiment of the present invention, and as shown in fig. 1, the network search method includes the following steps:

step 101, obtaining a Public Land Mobile Network (PLMN) identifier and reading a local PLMN file.

Here, step 101 obtains a public land mobile network PLMN identity, and reading the local PLMN file may be implemented by a terminal device; here, the terminal device refers to a communication terminal device having a capability of connecting a mobile communication network and a wireless network, including but not limited to: mobile phones, smart televisions, tablet computers, Ultra-mobile Personal computers (UMPC), netbooks, Personal Digital Assistants (PDA), and the like.

Furthermore, after the terminal device is started or restarted, or enters another region B from the region a, that is, the terminal device is separated from the network coverage of the operator in the region a and enters the network coverage of the operator B; at this time, the terminal device in the off-line state waits on a Broadcast Channel (BCH) and can receive the Broadcast message sent by each base station; the terminal device can obtain a Public Land Mobile Network (PLMN) identifier of a current accessible Network by analyzing the broadcast message. Here, the PLMN identity is a network established and operated by the government or its approved operator for the purpose of providing a land mobile communication service to the public. The PLMN identity is composed of a Mobile Country Code (MCC) and a Mobile Network Code (MNC); the MCC is composed of 3 digits and can uniquely identify the country to which the mobile client belongs, for example, 460 in China, 316 in the United states and 525 in Singapore; in addition, the MNC consists of 2 digits and is used to identify the mobile network to which the mobile client belongs. For example, the China Mobile GSM, TD-SCDMA, LTE are 00/02/07 respectively, the China Unicom GSM is 01, and the China telecom CDMA is 030.

Further, the local PLMN file is a file preset in the terminal device; here, the local PLMN file is used to store PLMN identifiers corresponding to operators that only deploy LTE networks. That is to say, the PLMN identifier corresponding to the operator in which only the LTE network is deployed is pre-stored in the local PLMN file. Here, the PLMN identifier corresponding to the operator that deploys only the LTE network in the local PLMN file may be acquired from a preset server through network connection; the preset server can store all PLMN identifications corresponding to LTE network operators which are only deployed all over the world. Therefore, terminal equipment in the global scope can automatically connect the server only under the condition of connecting with the network, obtain the PLMN identification of the operator only deploying the LTE network, and store the PLMN identification in the local file of the terminal equipment.

And 102, if the PLMN identification is matched with the local PLMN file, only searching the LTE network corresponding to the PLMN identification according to the PLMN identification to register and access the LTE network.

Here, if the PLMN identifier matches the local PLMN file, only searching for the LTE network corresponding to the PLMN identifier to register and access the LTE network according to the PLMN identifier in step 102 may be implemented by the terminal device.

Specifically, when the obtained PLMN identifier of the accessible network is successfully matched with the local PLMN file, it may be determined that the operator corresponding to the current PLMN identifier is an operator that only deploys the LTE network. The terminal device attempts to register with the LTE network corresponding to the PLMN identifier.

The network searching method provided by the embodiment of the invention comprises the steps of firstly obtaining a Public Land Mobile Network (PLMN) mark and reading a local PLMN file; the local PLMN file is used for storing a PLMN identification which is only used for deploying a Long Term Evolution (LTE) network; if the PLMN identification is matched with the local PLMN file, only searching an LTE network corresponding to the PLMN identification according to the PLMN identification to register and access the LTE network; in this way, by matching the PLMN identifier with the identifier of only the LTE-deployed network stored in the terminal device, it can be known whether the current operator only deploys the LTE network, and if the determination result is yes, the terminal device only searches for the LTE network corresponding to the PLMN; therefore, only the LTE network is searched in the area where only the LTE network is deployed, the timeliness of network search can be improved, and meanwhile, the quitting rate caused by abnormal network search and the complaint amount of customers are reduced.

Based on the foregoing embodiments, an embodiment of the present invention provides a network search method, as shown in fig. 2, where the network search method includes the following steps:

step 201, the terminal device obtains PLMN list information from a preset server.

Here, the preset server is an electronic device capable of providing a network search service for the terminal device, and may be distributed in various regions around the world to provide a service for all terminal devices around the world; the preset server can maintain a PLMN list, and the PLMN list is used for recording PLMN identifications corresponding to operators only deploying LTE networks in various regions of the world. In practical applications, the PLMN list in the preset server may be dynamically configured, that is, PLMN identifiers may be added to or deleted from the PLMN list.

Further, the terminal device can automatically establish connection with the preset server through WIFI or a data network, and obtain PLMN list information from the preset server.

It should be noted that the terminal device may obtain the PLMN list information from a preset server according to a preset time interval;

or when the change of the current geographical position state is detected, acquiring the PLMN list information from a preset server.

Here, the preset time interval may be a fixed time period, or may be obtained according to a preset time algorithm, and the embodiment of the present invention is not limited herein. In addition, the change of the geographic position state can be determined by a Global Positioning System (GPS) chip carried by the terminal device, and details are not repeated here.

In other embodiments of the present invention, step 201 may further include the following steps:

2011, the terminal device obtains an update data packet from a preset server;

step 2012, if the update data packet includes a PLMN list, the terminal device obtains the PLMN list information.

In practical application, the data configured in the preset server is dynamically changed; therefore, the terminal device needs to periodically obtain updated data, i.e., an update packet, from the preset server. Further, when the terminal device determines that the update packet includes the PLMN list, it may be considered that the PLMN list maintained in the preset server is updated, and the terminal device may obtain PLMN list information in the PLMN list, so that a PLMN identifier corresponding to an operator that only deploys the LTE network and is stored in the terminal device is consistent with information in the PLMN list of the preset server.

Step 202, the terminal device analyzes the PLMN list information, and loads the analyzed PLMN list information into the local PLMN file.

Here, the terminal device needs to analyze the obtained PLMN list information to obtain a PLMN identifier corresponding to each operator that deploys only an LTE network, and store and load the PLMN identifier into a local PLMN file.

Step 203, obtaining the public land mobile network PLMN identity, and reading the local PLMN file.

Wherein the local PLMN file is used for storing a PLMN identification only deploying a Long Term Evolution (LTE) network.

And 204, when the PLMN identification is the same as any PLMN identification in the local PLMN file, the terminal equipment initiates network registration on the LTE network frequency point corresponding to the PLMN identification.

Specifically, the terminal device matches the currently acquired PLMN identifiers with PLMN identifiers corresponding to all operators only deploying LTE networks, which are stored in the local PLMN file, one by one; and when the PLMN identification is the same as any PLMN identification in the local PLMN file, the terminal equipment initiates network registration aiming at the frequency point corresponding to the LTE network.

It should be noted that, for the explanation of the same steps or related concepts in the present embodiment as in the other embodiments, reference may be made to the description in the other embodiments, and details are not described herein again.

The invention is described in more detail below with reference to an application example.

The network searching method provided by the present application embodiment may be applied to a system architecture shown in fig. 3, where the system architecture may include a server side and a terminal device side, where the terminal device side is further composed of an application service layer and a modulation and demodulation (Modem) layer.

The present application embodiment provides a network search method, as shown in fig. 3, the network search method includes the following steps:

step 301, the application service layer of the terminal device obtains the update data packet in the server.

Here, the application service layer can be connected with the server through a wireless network to acquire data in the server; wherein the wireless network comprises a WiFi or data network.

It should be noted that the terminal device may acquire data in the server at any time in the case of network connection.

Step 302, the application service layer of the terminal device stores the update data packet into an update database of the terminal device.

Here, the update database may be a romupdate.db database; db database is used for storing the update data of the application service layer.

Step 303, the application service layer determines whether the updated database includes a PLMN list.

In practical application, the server side can maintain a PLMN list; specifically, the server may write a PLMN identifier corresponding to an operator that deploys only the LTE network into an "only LTE eplmn. When the PLMN list in the server changes, the server may compress and pack the PLMN list into an update packet, and send the update packet to the terminal device.

And step 304, the application service layer reads and analyzes the PLMN list to obtain PLMN list information.

Specifically, the application service layer can analyze a PLMN identifier corresponding to an operator that deploys only the LTE network from the PLMN list to obtain PLMN list information.

And 305, the application service layer sends the PLMN list information to the Modem layer through a data transmission channel, and writes the PLMN list information into a local PLMN file in the Modem layer.

And step 306, starting the Modem layer to acquire the current PLMN identification.

Here, the Modem layer may be activated when the terminal device enters the network after being powered on or restarted and disconnected.

Step 307, the Modem layer judges whether the acquired current PLMN identification matches with the local PLMN file.

And 308, if the judgment result is matching, registering the LTE network corresponding to the PLMN identification by the Modem layer.

It should be noted that steps 301 to 305 are the local PLMN file updating process, and steps 306 to 308 are the specific process of performing network search. Wherein, steps 301 to 305 are the basis of steps 306 to 308; steps 301-305 can be executed under the condition that the terminal equipment is networked; and the steps 306-308 are executed when the terminal equipment is started or restarted or enters the network after offline. The execution sequence of steps 301 to 305 and steps 306 to 308 is not sequential, and the embodiment of the present invention is not limited herein.

Based on the foregoing embodiments, the present application embodiment provides a network search method, as shown in fig. 4, where the network search method includes the following steps:

step 401, obtaining an update data packet of the server.

And step 402, storing the updating data packet to RomUpdate.

And step 403, sending the broadcast message with the successful update.

Step 404, when the application service layer detects that the romupdate.db is updated or monitors the broadcast message of successful update, judging whether the romupdate.db includes an onlylteplmn.xml file. If yes, go to step 405; if not, go to step 409.

Step 405, parsing the onlylteplmn.xml file to obtain configuration data.

Step 406, converting the data format of the MCC and MNC corresponding to the PLMN identifier in the only lteplmn.

Step 407, storing the converted MCC and MNC into an array to obtain PLMN list information.

And step 408, writing the PLMN list information into a local PLMN file of a Modem layer.

And step 409, prompting the completion of the updating of the local PLMN file.

And step 410, starting the Modem layer to acquire the current PLMN identification.

Step 411, the Modem layer determines whether the acquired current PLMN identity matches the local PLMN file.

And step 412, if the judgment result is matching, the Modem layer tries to register the LTE network corresponding to the PLMN identifier.

In order to implement the method according to the embodiment of the present invention, an embodiment of the present invention further provides a terminal device, as shown in fig. 5, where the terminal device includes: an acquisition unit 51 and a processing unit 52, wherein:

the acquiring unit 51 is configured to acquire a public land mobile network PLMN identifier and read a local PLMN file; the local PLMN file is used for storing a PLMN identification corresponding to an operator only deploying an LTE network;

the processing unit 52 is configured to, if the PLMN identifier is matched with the local PLMN file, only search for an LTE network corresponding to the PLMN identifier according to the PLMN identifier to register and access the LTE network.

In other embodiments of the present invention, the obtaining unit 51 is further configured to obtain PLMN list information from a preset server; the PLMN list information comprises PLMN identifications corresponding to operators which only deploy LTE networks all over the world;

preferably, the obtaining unit 51 may be configured to:

acquiring PLMN list information from the preset server according to a preset time interval;

or when the current geographical position state is detected to be changed, acquiring PLMN list information from the preset server.

The processing unit 52 is further configured to parse the PLMN list information, and load the parsed PLMN list information into the local PLMN file.

In other embodiments, the obtaining unit 51 may be further configured to obtain an update data packet from a preset server; and if the update data packet comprises a PLMN list, acquiring the PLMN list information.

In other embodiments of the present invention, the processing unit 52 is specifically configured to initiate network registration on an LTE network frequency point corresponding to the PLMN identifier when the PLMN identifier is the same as a PLMN identifier corresponding to any operator that only deploys an LTE network in the local PLMN file.

The terminal equipment provided by the embodiment of the invention firstly acquires a Public Land Mobile Network (PLMN) identifier and reads a local PLMN file; the local PLMN file is used for storing a PLMN identification corresponding to an operator only deploying a Long Term Evolution (LTE) network; if the PLMN identification is matched with the local PLMN file, only searching an LTE network corresponding to the PLMN identification according to the PLMN identification to register and access the LTE network; in this way, by matching the PLMN identifier with the identifier of only the LTE-deployed network stored in the terminal device, it can be known whether the current operator only deploys the LTE network, and if the determination result is yes, the terminal device only searches for the LTE network corresponding to the PLMN; therefore, only the LTE network is searched in the area where only the LTE network is deployed, the timeliness of network search can be improved, and meanwhile, the quitting rate caused by abnormal network search and the complaint amount of customers are reduced.

Based on the hardware implementation of each unit in the terminal device, in order to implement the network search method provided in the embodiment of the present invention, an embodiment of the present invention further provides a terminal device, and as shown in fig. 6, the terminal device 60 includes: a processor 61 and a memory 62 configured to store computer programs capable of running on the processor,

wherein the processor 61 is configured to perform the method steps of the previous embodiments when running the computer program.

In practice, of course, the various components of the terminal device 60 are coupled together by a bus system 63, as shown in fig. 6. It will be appreciated that the bus system 63 is used to enable communications among the components. The bus system 63 includes a power bus, a control bus, and a status signal bus in addition to the data bus. For clarity of illustration, however, the various buses are labeled as bus system 63 in FIG. 6.

In an exemplary embodiment, the present invention further provides a computer readable storage medium, such as a memory 62 including a computer program, which is executable by a processor 61 of the terminal device 60 to perform the steps of the foregoing method. The computer-readable storage medium may be a magnetic random access Memory (FRAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM), among other memories.

The technical schemes described in the embodiments of the present invention can be combined arbitrarily without conflict.

In the embodiments provided in the present invention, it should be understood that the disclosed method and intelligent device may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, all the functional units in the embodiments of the present invention may be integrated into one second processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.

Claims

1. A method of network searching, the method comprising:

matching the PLMN identifications with PLMN identifications corresponding to all operators only deploying LTE networks stored in the local PLMN file one by one; and when the PLMN identification is the same as any PLMN identification in the local PLMN file, only searching the LTE network corresponding to the PLMN identification according to the PLMN identification to register and access the LTE network.

2. The method of claim 1, wherein prior to obtaining the Public Land Mobile Network (PLMN) identity and the home PLMN file, the method further comprises:

acquiring PLMN list information from a preset server; the PLMN list information comprises PLMN identifications corresponding to operators which only deploy LTE networks all over the world;

and analyzing the PLMN list information, and loading the analyzed PLMN list information into the local PLMN file.

3. The method of claim 2, wherein the obtaining PLMN list information from a predetermined server further comprises:

acquiring an update data packet from a preset server;

and if the update data packet comprises a PLMN list, acquiring the PLMN list information.

4. The method according to claim 2 or 3, wherein the obtaining the PLMN list information from the predetermined server comprises:

5. The method according to claim 1, wherein the PLMN identities are matched one by one with PLMN identities corresponding to all LTE network only deployed operators stored in the local PLMN file; when the PLMN identifier is the same as any one PLMN identifier in the local PLMN file, according to the PLMN identifier, only searching for an LTE network corresponding to the PLMN identifier to register and access the LTE network, including:

and when the PLMN identification is the same as the PLMN identification corresponding to any operator which only deploys the LTE network in the local PLMN file, initiating network registration on the LTE network frequency point corresponding to the PLMN identification.

6. A terminal device, the terminal device comprising: an acquisition unit and a processing unit, wherein:

the processing unit is configured to match the PLMN identifiers with PLMN identifiers corresponding to all operators only deploying LTE networks, which are stored in the local PLMN file, one by one; and when the PLMN identification is the same as any PLMN identification in the local PLMN file, only searching the LTE network corresponding to the PLMN identification according to the PLMN identification to register and access the LTE network.

7. The terminal device of claim 6, wherein:

the acquiring unit is further configured to acquire PLMN list information from a preset server; the PLMN list information comprises PLMN identifications corresponding to operators which only deploy LTE networks all over the world;

the processing unit is further configured to analyze the PLMN list information, and load the analyzed PLMN list information into the local PLMN file.

8. The terminal device of claim 7, wherein:

the acquiring unit is specifically configured to acquire an update data packet from a preset server; and if the update data packet comprises a PLMN list, acquiring the PLMN list information.

9. A terminal device, characterized in that the terminal device comprises: a processor and a memory for storing a computer program capable of running on the processor,

wherein the processor is adapted to perform the steps of the method of any one of claims 1 to 5 when running the computer program.

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 network search method of any one of claims 1 to 5.