CN107750059B

CN107750059B - Frequency band searching method and related equipment

Info

Publication number: CN107750059B
Application number: CN201711274884.XA
Authority: CN
Inventors: 董志伟
Original assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Current assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Priority date: 2017-12-05
Filing date: 2017-12-05
Publication date: 2021-02-23
Anticipated expiration: 2037-12-05
Also published as: CN107750059A

Abstract

The embodiment of the invention discloses a frequency band searching method and related equipment, wherein the method comprises the following steps: after the SIM card is detected to be inserted, acquiring the identification information of the SIM card; determining a target MBN file corresponding to the identification information from a pre-configured MBN file set; and configuring the radio frequency scheme and the static radio frequency NV according to the target MBN file, and searching a frequency range of a target frequency range required by the SIM card according to the target MBN file. The embodiment of the invention is beneficial to improving the searching efficiency of the frequency band searching of the communication terminal and accelerating the network-starting speed of the communication terminal.

Description

Frequency band searching method and related equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a frequency band searching method and a related device.

Background

Currently, the diversity of 2G, 3G, and 4G LTE communication bands worldwide poses challenges to the development of communication terminals. The 2G and 3G technologies in the world each use 4 to 5 different frequency bands, and the frequency bands supported by LTE in different countries or regions are different, for example, there is a difference between the frequency bands of LTE commonly used in europe and LTE commonly used in south america.

For a communication terminal, when entering different countries or regions, a process of searching frequency bands is required, and a network is registered after an available frequency band is searched. However, due to the diversity of the current global communication frequency bands, when the same communication terminal enters different countries and regions, the situation that the frequency band search is slow or even impossible is often encountered, which seriously affects the normal network start of the communication terminal.

Disclosure of Invention

The embodiment of the invention provides a frequency band searching method and related equipment, which can automatically carry out communication configuration and frequency band searching of a communication terminal.

In a first aspect, an embodiment of the present invention provides a frequency band searching method, where the method is applied to a communication terminal, and the communication terminal is configured with a radio frequency scheme and a static radio frequency NV, where the radio frequency scheme and the static radio frequency NV meet requirements of communication frequency bands in at least two regions, and the method includes:

acquiring Identification information of a Subscriber Identity Module (SIM) card after the SIM card is detected to be inserted;

determining a target MBN file corresponding to the identification information from a pre-configured MBN file set, wherein the MBN file set comprises MBN files of the at least two regions;

and configuring the radio frequency scheme and the static radio frequency NV according to the target MBN file, and searching a frequency range of a target frequency range required by the SIM card according to the target MBN file.

Optionally, the configuration information of the target frequency band required by the SIM card is configured in the target MBN file, and the specific implementation manner of configuring the radio frequency scheme and the static radio frequency NV according to the target MBN file and performing frequency band search on the target frequency band required by the SIM card according to the target MBN file is as follows: activating the target MBN file; writing the configuration information into the communication terminal; configuring the radio frequency scheme and the static radio frequency NV according to the configuration information, and searching a frequency band of a target frequency band required by the SIM card according to the configuration information; the configuration information includes a frequency band NV of a protocol class or a frequency band NV of a radio frequency class.

Optionally, the identification information includes an integrated circuit card identifier and/or an international mobile subscriber identity, and the specific implementation manner of determining the target MBN file corresponding to the identification information from the preconfigured MBN file set is as follows: comparing the integrated circuit card identification code and/or the international mobile subscriber identification code in the identification information with the content of the identification field of the MBN file in a pre-configured MBN file set; and determining a target MBN file corresponding to the integrated circuit card identification code and/or the international mobile subscriber identification code included in the identification information according to the comparison result.

Optionally, before configuring the radio frequency scheme and the static radio frequency NV according to the target MBN file and performing frequency band search on a target frequency band required by the SIM card according to the target MBN file, loading all MBN files in the preconfigured MBN file set into an encryption partition.

Optionally, the specific implementation manner of loading all MBN files in the preconfigured MBN file set into the encryption partition is as follows: after detecting the starting instruction of the frequency band search, acquiring the pre-configured MBN file set; and loading all MBN files in the MBN file set into an encryption partition.

In a second aspect, an embodiment of the present invention provides a frequency band searching apparatus, which includes means for performing the method of the first aspect.

In a third aspect, an embodiment of the present invention provides a communication terminal, where the communication terminal is configured with a radio frequency scheme and a static radio frequency NV that meet requirements of communication frequency bands of at least two regions, and the communication terminal includes a processor, a memory, and a communication interface, where the processor, the memory, and the communication interface are connected to each other, where the memory is used to store a computer program, and the computer program includes program instructions; the communication interface is used for realizing communication with other network elements; the processor is configured to invoke the program instructions to perform the method of the first aspect described above.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, in which a computer program is stored, the computer program comprising program instructions, which, when executed by a processor, cause the processor to perform the method of the first aspect.

In the embodiment of the invention, the communication terminal is configured with the radio frequency scheme and the static radio frequency NV which meet the communication frequency band requirements of at least two regions, the communication terminal can acquire the identification information of the SIM card after the SIM card is detected to be inserted, and determine the target MBN file corresponding to the identification information from the pre-configured MBN file set, so that the radio frequency scheme and the static radio frequency NV are configured according to the target MBN file, and the frequency band search is performed on the target frequency band required by the SIM card according to the target MBN file, thereby being beneficial to improving the search efficiency of the frequency band search of the communication terminal and accelerating the network-starting speed of the communication terminal.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic flow chart of a frequency band searching method according to an embodiment of the present invention;

FIG. 2a is a schematic diagram of a configuration of MBN in China according to an embodiment of the present invention;

fig. 2b is a schematic diagram of an indian MBN configuration provided by an embodiment of the present invention;

FIG. 2c is a schematic diagram of another configuration of MBNs in China according to an embodiment of the present invention;

figure 2d is a schematic diagram of another indian MBN configuration provided by an embodiment of the present invention;

fig. 3 is a schematic flow chart of another frequency band searching method according to an embodiment of the present invention;

fig. 4 is a schematic block diagram of a frequency band searching apparatus according to an embodiment of the present invention;

fig. 5 is a schematic block diagram of a communication terminal according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In a specific implementation, the communication terminal described in the embodiment of the present invention is configured with a radio frequency scheme and a static radio frequency NV, which meet the requirements of communication frequency bands in at least two regions, and the configuration of the radio frequency scheme and the static radio frequency NV enables the communication terminal to normally perform network injection and work in the at least two regions. The communication terminal includes, but is not limited to, a device such as a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with a wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a communication terminal device in the internet of things, a virtual reality device, a communication terminal device in a future 5G network, or a communication terminal device in a future evolved Public Land Mobile Network (PLMN), and the like.

The static radio frequency NV, the frequency band NV of the protocol class, or the frequency band NV of the radio frequency class described in the embodiment of the present invention are NV items, that is, nonvolatile data stored in a Non-Volatile Memory (NVM), where the NV items have radio frequency-related parameters: the method comprises logic control parameters such as transmitting and receiving, temperature compensation, calibration parameters, audio related parameters, mobile phone IO control parameters, current control such as charging current consumption and the like. For the mobile phone, all radio frequency configurations can be stored in the mobile phone in the form of NV, and if a certain NV item of the mobile phone is wrong, the mobile phone is likely to lack necessary configuration parameters and cannot work normally. Generally, the NV item is closely related to the communication function, for example, the NV item may mark a network that the mobile phone is allowed to register with, a network that the mobile phone is currently registered with, and the like. Specifically, when the NV item in a mobile phone marks a connected 3G network, and when a mobile SIM card is inserted, the problem of not finding a network signal occurs.

The MBN file described in the embodiment of the invention is a file format for storing the specific NV/EFS configuration items of the operators, and the communication terminal can analyze the file and dynamically load the specific configuration items into a specific module, thereby ensuring that the communication terminal can meet the requirements of different operators.

Referring to fig. 1, fig. 1 is a schematic flowchart of a frequency band searching method provided in an embodiment of the present invention, where the method is applied to a communication terminal configured with a radio frequency scheme and a static radio frequency NV, where the radio frequency scheme and the static radio frequency NV meet communication frequency band requirements of at least two regions, and as shown in the figure, the method may include:

101. and after detecting that the SIM card is inserted, the communication terminal acquires the identification information of the SIM card.

The Identification information may include an Integrated Circuit Card Identifier (ICCID) and/or an International Mobile Subscriber Identity (IMSI) of the SIM card.

The ICCID is solidified in the SIM card of the terminal, is the unique identification number of the IC card and consists of 20 digits in total. The coding format is as follows: XXXXXXX 0MFSS YYGXXXX. The first six digits are operator codes, for example, for china mobile: 898600, respectively; china Unicom is as follows: 898601, respectively; china telecom is as follows: 898603. wherein 89 is the international number, 86 is the national number of China, 00 is the mobile operator code, 01 is the operator number of Unicom, 03 is the operator number of telecommunications. Furthermore, the information of the area, the manufacturer, the check digit, the number and the like of the SIM card can be determined through the numbers of other digits in the ICCID.

The IMSI is a mark for distinguishing a mobile subscriber, is stored in the SIM card, and can be used for distinguishing valid information of the mobile subscriber. The total length of the device does not exceed 15 bits, and numbers ranging from 0 to 9 are also used. It is composed of three parts, i.e., MCC (Mobile Country Code), MNC (Mobile Network Code) and MSIN (Mobile Subscriber identity Number). The MCC is a code number of a country to which the mobile subscriber belongs, and occupies 3 digits, for example, the MCC in china is specified as 460. The MNC is a mobile network number, which is used to identify the mobile communication network to which the mobile subscriber belongs, and generally consists of two or three digits. In the same country, if there are multiple PLMNs (Public Land Mobile Network ), typically one PLMN corresponds to one operator in a certain country, the distinction can be made by MNC, i.e. each PLMN is assigned a unique MNC. The China Mobile System uses 00, 02, 04, 07, the China Unicom GSM System uses 01, 06, 09, the China telecom CDMA System uses 03, 05, the telecom 4G uses 11, the China iron Tong System uses 20. The MSIN is a mobile subscriber identity code used to identify a mobile subscriber in a mobile communication network, for example, 46000 is a china mobile subscriber, 46001 is a unicom subscriber, and 46003 is a telecommunications subscriber.

102. And the communication terminal determines a target MBN file corresponding to the identification information from a pre-configured MBN file set.

The MBN file set can comprise MBN files of at least two regions, and each MBN file can be configured differently according to target frequency bands required by SIM cards of different regions. The specific configuration method can configure the frequency band NV of the protocol class or the frequency band NV of the radio frequency class in MBN files of different regions according to the target frequency band required by the SIM card of the region. For example, when an MBN file (hereinafter abbreviated as "chinese MBN") meeting the target frequency band requirement of the chinese SIM card is configured by the protocol-like frequency band NV, the chinese MBN configuration can be as shown in fig. 2a, and it can be seen from the figure that the target frequency band required by the chinese SIM card can be: FDD-LTE: B1B 3B 5; TDD-LTE: B39B 40B 41; WCDMA: B1B 5B 8; GSM: B2B 3B 8. When an MBN file (hereinafter, referred to as an indian MBN) meeting the target frequency band requirement of the indian SIM card is configured through the protocol class frequency band NV, the indian MBN configuration can be shown in fig. 2b, and it can be seen from the figure that the target frequency band required by india can be FDD-LTE: B1B 3; WCDMA: B1B 5B 8; GSM: B2B 3B 8. It is understood that the target frequency bands required by the chinese SIM card and the indian SIM card described in fig. 2a and 2b are only examples, not exhaustive, and include but are not limited to the above frequency bands.

For another example, when configuring an MBN file meeting the target frequency band requirement of the chinese SIM card through the frequency band NV of the radio frequency class, the configuration of the chinese MBN may be as shown in fig. 2c, and it can be seen from the figure that the target frequency band required by the chinese SIM card may be: FDD-LTE: B1B 3B 5; TDD-LTE: B39B 40B 41; WCDMA: B1B 5B 8; GSM: B2B 3B 8. When the indian MBN file is configured through the radio frequency-type frequency band NV, the indian MBN configuration can be as shown in fig. 2d, and it can be seen from the figure that the target frequency band required by the indian SIM card can be FDD-LTE: B1B 3; WCDMA: B1B 5B 8; GSM: B2B 3B 8. It is understood that the target frequency bands required by the chinese SIM card and the indian SIM card described in fig. 2c and 2d are only examples, not exhaustive, and include but are not limited to the above frequency bands.

Optionally, the MBN files set for the target frequency bands required by the SIM cards in different regions may be further subdivided according to the SIM cards provided by the communication operators in different regions, for example, the MBN file for the chinese SIM card may be subdivided into an MBN file for the chinese unicom SIM card (hereinafter abbreviated as china unicom MBN), an MBN file for the chinese mobile SIM card (hereinafter abbreviated as china mobile MBN), and an MBN file for the chinese telecommunication SIM card (hereinafter abbreviated as china telecommunication MBN). Specifically, the MBN in china unicom can perform protocol-like frequency band NV configuration or radio-frequency-like frequency band NV configuration according to target frequency bands used by network systems (such as 2G (gsm), 3G (wcdma), and 4G (TD-LTE)) in china unicom; the China Mobile MBN can carry out protocol-type frequency band NV configuration or radio-frequency-type frequency band NV configuration according to target frequency bands used by network systems (such as 2G (GSM), 3G (TD-SCDMA) and 4G (TD-LTE)) of China Mobile; the China telecom MBN can carry out protocol-type frequency band NV configuration or radio-frequency-type frequency band NV configuration according to target frequency bands used by network systems (such as 2G (CDMA), 3G (CDMA2000) and 4G (FFD-LTE)) of China telecom.

It can be understood that the target frequency band required by each SIM card is different, for example, the target frequency bands required by the chinese SIM card may be: FDD-LTE: B1B 3B 5; TDD-LTE: B39B 40B 41; WCDMA: B1B 5B 8; GSM: B2B 3B 8; the target frequency band required by the indian SIM card may be FDD-LTE: B1B 3; WCDMA: B1B 5B 8; GSM: B2B 3B 8; the target frequency bands required by the SIM card of china unicom may be: TD-LTE: B39B 40B 41; WCDMA: B1B 5B 8; GSM: B2B 3B 8.

In a specific implementation, the communication terminal may compare the integrated circuit card identifier and/or the international mobile subscriber identifier in the identifier information with the content of the identifier field of the MBN file in the preconfigured MBN file set, and determine the target MBN file corresponding to the integrated circuit card identifier and/or the international mobile subscriber identifier included in the identifier information according to the comparison result.

The identification field may be newly added when the MBN file is configured, or may be reserved at a certain position (for example, at a certain byte) when the MBN file is configured. The identification field may be, for example, IIN _ LIST.

For example, the communication terminal is a mobile phone, two MBN files are in a pre-configured MBN file set, one is a china MBN file, the configuration of the china MBN is shown in fig. 2a, one is an indian MBN file, the configuration of the indian MBN is shown in fig. 2b, the inserted SIM is a chinese SIM card, and the target frequency band required by the SIM card is: FDD-LTE: B1B 3B 5; TDD-LTE: B39B 40B 41; WCDMA: B1B 5B 8; GSM: B2B 3B 8. At this time, the mobile phone may compare the ICCID and/or IMSI of the SIM card with the field IIN _ LIST of the MBN file in the MBN file set, identify the MBN file in china from the MBN file set according to the comparison result, and determine the MBN file in china as the target MBN file.

For another example, the communication terminal is a mobile phone, the MBN file set includes three MBN files, one is an MBN file of china mobile, one is an MBN file of china unicom, and one is an MBN file of china telecommunications, and the MBN of china mobile has performed protocol-like frequency band NV configuration or radio frequency-like frequency band NV configuration according to frequency bands used by network systems (such as 2G (gsm), 3G (wcdma), and 4G (TD-LTE)) of china unicom; the MBN of China Mobile already carries out protocol type frequency band NV configuration of radio frequency type frequency band NV configuration according to the frequency band used by the network system (such as 2G (GSM), 3G (TD-SCDMA) and 4G (TD-LTE)) of China Mobile; the MBN of China telecom already carries out protocol-class frequency band NV configuration of radio frequency-class frequency band NV configuration according to the frequency bands used by the network system (such as 2G (CDMA), 3G (CDMA2000) and 4G (FFD-LTE)) of China telecom, the inserted SIM is an SIM card of China Unicom, and the target frequency bands required by the SIM card are as follows: TD-LTE: B39B 40B 41; WCDMA: B1B 5B 8; GSM: B2B 3B 8. At this time, the mobile phone may compare the ICCID and/or IMSI of the SIM card with the field IIN _ LIST of the MBN file in the MBN file set, identify the MBN file in china link from the MBN file set according to the comparison result, and determine the MBN file in china link as the target MBN file.

103. And the communication terminal configures the radio frequency scheme and the static radio frequency NV according to the target MBN file, and searches a target frequency band required by the SIM card according to the target MBN file.

When configuring the target MBN file, the target MBN file is configured according to the requirement of the target frequency band required by the SIM, and the specific configuration method may refer to the related description in step 102, which is not described herein again.

In specific implementation, after determining the target MBN file, the communication terminal may activate the target MBN file, and configure the static radio frequency NV of the radio frequency archive box according to the configuration information in the target MBN, so that only a target frequency band is opened in the radio frequency scheme and the static radio frequency NV, and frequency band search is performed on the target frequency band.

For example, the communication terminal is a mobile phone, the mobile phone is configured with a radio frequency scheme and a static radio frequency NV that simultaneously meet the requirements of communication frequency bands of china and the united states, and the communication frequency bands of the two countries are respectively: china: LTE 38; in the United states: LTE 4. When the mobile phone enters China, and a China user inserts a China mobile SIM card 1, the mobile phone can activate a pre-configured China MBN file, namely a target MBN file (the target MBN file is only configured with a target frequency band required by LTE 38, namely the SIM card 1), so that the radio frequency scheme and the static radio frequency NV only start LTE 38, and start frequency band search of the LTE 38. When the Mobile phone enters the united states, after the U.S. user inserts the T-Mobile SIM card 2, the Mobile phone can also activate the pre-configured U.S. MBN file, i.e. the target MBN file (the MBN file only configures LTE 4, i.e. the target frequency band required by the SIM card 2), so that the radio frequency scheme and the static radio frequency NV only open LTE 4, and open the frequency band search for LTE 4.

Referring to fig. 3, fig. 3 is a schematic flowchart of another frequency band searching method provided in an embodiment of the present invention, where the method is applied to a communication terminal configured with a radio frequency scheme and a static radio frequency NV, where the radio frequency scheme and the static radio frequency NV meet communication frequency band requirements of at least two regions, and as shown in the figure, the method may include:

301. and after detecting that the SIM card is inserted, the communication terminal acquires the identification information of the SIM card.

302. And the communication terminal determines a target MBN file corresponding to the identification information from a pre-configured MBN file set.

For specific implementation manners of step 301 and step 302, reference may be made to the related descriptions of step 101 and step 102 in the foregoing embodiments, and details are not described here again.

303. And the communication terminal loads all MBN files in the pre-configured MBN file set into the encryption partition.

In which it is common for the communication terminal to store some critical data in a less accessible partition, which is generally referred to as an encryption partition. The key data may be account information such as MEID (Mobile Equipment Identifier) or ESN (Electronic Serial Number), a telephone Number, and data configuration parameters, product codes, wireless settings, network connection, and the like. Different device manufacturers may use different partition designations for the encrypted partitions of the respective devices, e.g., Samsung and LG devices are commonly named EFS partitions, Sony is named TA partition, and HTC is named EPST partition. Therefore, in the embodiment of the present invention, the communication terminal is favorable for preventing the MBN file from being easily tampered by loading all MBN files in the preconfigured MBN file set into the encryption partition.

In a specific implementation, the communication terminal may automatically load all MBN files in the MBN file set into the encryption partition without receiving any instruction, or may acquire the MBN file set after detecting a start instruction for frequency band search, and load all MBN files in the MBN file set into the encryption partition. The specific input mode of the opening instruction can be input by a user in the form of voice, key pressing, shaking the communication terminal or clicking, pressing or sliding the display screen. Taking a user shaking the communication terminal as an example, when the user shakes or shakes the communication terminal, a gravity sensor or a gyroscope of the communication terminal detects shaking or shaking acceleration, when the acceleration reaches a preset threshold value, the user is determined to input a trigger instruction, at this time, the communication terminal can acquire an MBN file set, and all MBN files in the MBN file set are loaded into an encryption partition, so that the MBN files are prevented from being easily tampered.

It should be noted that step 303 may be before step 301, between step 301 and step 302, or between step 302 and step 304, which is not specifically limited in this disclosure.

304. And the communication terminal activates the target MBN file, and the target MBN file is configured with the configuration information of the target frequency band required by the SIM card.

305. And the communication terminal writes the configuration information into the communication terminal.

306. And the communication terminal configures the radio frequency scheme and the static radio frequency NV according to the configuration information and searches a frequency band required by the SIM card according to the configuration information.

The configuration information may include a frequency band NV of a protocol class or a frequency band NV of a radio frequency class.

In specific implementation, the communication terminal may activate the target MBN file, and write the protocol-class frequency band NV or the radio-frequency-class frequency band NV meeting the target frequency band requirement, which is configured in advance in the target MBN file, into the communication terminal, so that only the target frequency band is opened in the radio-frequency scheme and the static radio-frequency NV, and the frequency band required by the SIM card is searched according to the frequency band information corresponding to the protocol-class frequency band NV or the radio-frequency-class frequency band NV.

For example, the mobile phone is pre-configured with a radio frequency scheme and a static radio frequency NV that meet the requirement of the communication frequency bands in india and china, and the communication frequency bands in china are: FDD-LTE: B1B 3B 5; TDD-LTE: B39B 40B 41; WCDMA: B1B 5B 8; GSM: B2B 3B 8; the communication frequency band of india is: FDD-LTE: B1B 3; WCDMA: B1B 5B 8; GSM: B2B 3B 8. Correspondingly, the MBN file set includes a china MBN file and an indian MBN file, the china MBN configuration may be as shown in fig. 2c, the indian MBN configuration may be as shown in fig. 2d, it can be seen from fig. 2c that the china MBN is configured to adapt to the radio frequency class NV in china according to the target frequency band requirement required by the china SIM card, and it can be seen from fig. 2d that the indian MBN is configured to adapt to the radio frequency class NV in india according to the target frequency band requirement required by the indian SIM card. When a Chinese user inserts a Chinese SIM card 1, the mobile phone can activate a pre-configured Chinese MBN file, namely a target MBN file, and write the radio frequency NV in FIG. 2c into the communication terminal, so that the mobile phone can enable a radio frequency scheme and the static radio frequency NV to only open a target frequency band according to frequency band information (FDD-LTE: B1B 3B 5; TDD-LTE: B39B 40B 41; WCDMA: B1B 5B 8 and GSM: B2B 3B 8) corresponding to the radio frequency NV, namely the target frequency band required by the SIM card 1, and search the target frequency band FDD-LTE: B1B 3B 5; TDD-LTE: B39B 40B 41; WCDMA: B1B 5B 8 and GSM: B2B 3B 8. When the indian user inserts the indian SIM card 2, the mobile phone can also activate the pre-configured indian MBN file, i.e. the target MBN file, and write the radio frequency NV in fig. 2d into the communication terminal, so that the mobile phone can only open the indian communication band according to the radio frequency scheme and the static radio frequency NV, i.e. the target band required by the SIM card 2, according to the band information (FDD-LTE: B1B 3; WCDMA: B1B 5B 8 and GSM: B2B 3B 8) corresponding to the radio frequency NV, and search the target band FDD-LTE: B1B 3; WCDMA: B1B 5B 8 and GSM: B2B 3B 8.

In the embodiment of the invention, the communication terminal is configured with a radio frequency scheme and static radio frequency NV which meet the communication frequency band requirements of at least two regions, the communication terminal can acquire the identification information of an SIM card after detecting the insertion of the SIM card, determine a target MBN file corresponding to the identification information from a pre-configured MBN file set, activate the target MBN file after loading all MBN files in the pre-configured MBN file set into an encryption partition, thereby writing the configuration information of the target frequency band required by the SIM card configured in the target MBN file into the communication terminal, further configuring the radio frequency scheme and the static radio frequency NV according to the configuration information, searching the frequency band of the target frequency band according to the configuration information, being beneficial to improving the searching efficiency of the frequency band searching of the communication terminal, accelerating the network-starting speed of the communication terminal, and loading all MBN files in the MBN file set into the encryption partition, the method is beneficial to preventing the MBN file from being easily tampered.

An embodiment of the present invention provides a frequency band searching apparatus, where the apparatus is configured to execute the units of the method described in fig. 1 or fig. 3. Specifically, referring to fig. 4, it is a schematic block diagram of a frequency band searching apparatus according to an embodiment of the present invention. The frequency band searching apparatus of the present embodiment includes: a detection unit 40, an acquisition unit 41, a determination unit 42, and a band search unit 43.

A detection unit 40 for detecting insertion of the SIM card;

an obtaining unit 41, configured to obtain identification information of the SIM card after the detecting unit 40 detects that the SIM card is inserted;

a determining unit 42, configured to determine, from a preconfigured MBN file set, a target MBN file corresponding to the identification information, where the MBN file set includes MBN files of the at least two regions;

and a frequency band searching unit 43, configured to configure the radio frequency scheme and the static radio frequency NV according to the target MBN file, and perform frequency band searching on a target frequency band required by the SIM card according to the target MBN file.

Optionally, the target MBN file is configured with configuration information of a target frequency band required by the SIM card, and the frequency band searching unit 43 is specifically configured to:

activating the target MBN file;

writing the configuration information into the communication terminal;

configuring the radio frequency scheme and the static radio frequency NV according to the configuration information, and searching a frequency band of a target frequency band required by the SIM card according to the configuration information; the configuration information includes a frequency band NV of a protocol class or a frequency band NV of a radio frequency class.

Optionally, the identification information includes an integrated circuit card identifier and/or an international mobile subscriber identity, and the determining unit 42 is specifically configured to:

comparing the integrated circuit card identification code and/or the international mobile subscriber identification code in the identification information with the content of the identification field of the MBN file in a pre-configured MBN file set;

and determining a target MBN file corresponding to the integrated circuit card identification code and/or the international mobile subscriber identification code included in the identification information according to the comparison result.

Optionally, the apparatus further comprises:

an encrypting unit 44, configured to load all MBN files in the preconfigured MBN file set into an encrypted partition.

Optionally, the encrypting unit 44 is specifically configured to obtain the preconfigured MBN file set after detecting the start instruction of the frequency band search; and loading all MBN files in the MBN file set into an encryption partition.

In the embodiment of the invention, a frequency band searching device is configured with a radio frequency scheme and a static radio frequency NV which meet the communication frequency band requirements of at least two regions, a detection unit 40 detects the insertion of an SIM card, an acquisition unit 41 acquires identification information of the SIM card after the detection unit 40 detects the insertion of the SIM card, and a determination unit 42 determines a target MBN file corresponding to the identification information from a pre-configured MBN file set, so that a frequency band searching unit 43 configures the radio frequency scheme and the static radio frequency NV according to the target MBN file and searches the frequency band of the target frequency band required by the SIM card according to the target MBN file, thereby being beneficial to improving the searching efficiency of the frequency band searching of the device and accelerating the network-up speed of the device.

Referring to fig. 5, fig. 5 is a schematic block diagram of a communication terminal according to an embodiment of the present invention. As shown in fig. 5, the communication terminal includes a processor 501, a memory 502, and a communication interface 503. The processor 501, the memory 502 and the communication interface 503 may be connected by a bus or other means, and are illustrated in fig. 5 as being connected by a bus in the embodiment of the present invention. Wherein the communication interface 503 is adapted to enable communication with other network elements, such as communication terminals, the memory 502 is adapted to store a computer program comprising program instructions, and the processor 501 is adapted to execute the program instructions stored in the memory 502. Wherein the processor 501 is configured to call the program instruction to perform: after the SIM card is detected to be inserted, acquiring the identification information of the SIM card; determining a target MBN file corresponding to the identification information from a pre-configured MBN file set, wherein the target MBN file comprises a target frequency band required by the SIM card, and the MBN file set comprises MBN files of the at least two regions; and configuring the radio frequency scheme and the static radio frequency NV according to the target MBN file, and searching the frequency range of the target frequency range according to the target MBN file.

Optionally, the target MBN file is configured with configuration information of a target frequency band required by the SIM card, and the processor 501 is configured to activate the target MBN file; writing the configuration information into the communication terminal; configuring the radio frequency scheme and the static radio frequency NV according to the configuration information, and searching a frequency band of a target frequency band required by the SIM card according to the configuration information; the configuration information includes a frequency band NV of a protocol class or a frequency band NV of a radio frequency class.

Optionally, the identification information includes an integrated circuit card identifier and/or an international mobile subscriber identifier, and the processor 501 is configured to compare the integrated circuit card identifier and/or the international mobile subscriber identifier in the identification information with contents of an identification field of an MBN file in a preconfigured MBN file set; and determining a target MBN file corresponding to the integrated circuit card identification code and/or the international mobile subscriber identification code included in the identification information according to the comparison result.

Optionally, the processor 501 is configured to load all MBN files in the preconfigured set of MBN files into an encrypted partition.

Optionally, the processor 501 is further configured to obtain the preconfigured MBN file set after detecting the start instruction of the frequency band search; and loading all MBN files in the MBN file set into an encryption partition.

It should be understood that, in the embodiment of the present invention, the Processor 501 may be a Central Processing Unit (CPU), and the Processor 501 may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 502 may include both read-only memory and random access memory, and provides instructions and data to the processor 501. A portion of the memory 502 may also include non-volatile random access memory. For example, the memory 502 may also store device type information.

In a specific implementation, the processor 501, the memory 502, and the communication interface 503 described in this embodiment of the present invention may execute the implementation described in the method embodiment shown in fig. 1 or fig. 3 provided in this embodiment of the present invention, and may also execute the implementation of the frequency band searching apparatus described in this embodiment of the present invention, which is not described herein again.

In another embodiment of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium storing a computer program comprising program instructions that when executed by a processor implement: after the SIM card is detected to be inserted, acquiring the identification information of the SIM card; determining a target MBN file corresponding to the identification information from a pre-configured MBN file set, wherein the target MBN file comprises a target frequency band required by the SIM card, and the MBN file set comprises MBN files of the at least two regions; and configuring the radio frequency scheme and the static radio frequency NV according to the target MBN file, and searching the frequency range of the target frequency range according to the target MBN file.

Optionally, the target MBN file is configured with configuration information of a target frequency band required by the SIM card, and the computer-readable storage medium is configured to activate the target MBN file; writing the configuration information into the communication terminal; configuring the radio frequency scheme and the static radio frequency NV according to the configuration information, and searching a frequency band of a target frequency band required by the SIM card according to the configuration information; the configuration information includes a frequency band NV of a protocol class or a frequency band NV of a radio frequency class.

Optionally, the identification information includes an integrated circuit card identification code and/or an international mobile subscriber identity, and the computer-readable storage medium is configured to compare the integrated circuit card identification code and/or the international mobile subscriber identity in the identification information with contents of an identification field of an MBN file in a preconfigured MBN file set; and determining a target MBN file corresponding to the integrated circuit card identification code and/or the international mobile subscriber identification code included in the identification information according to the comparison result.

Optionally, the computer-readable storage medium is configured to load all MBN files in the set of preconfigured MBN files into an encrypted partition.

Optionally, the computer-readable storage medium is further configured to obtain the preconfigured MBN file set after detecting the start instruction of the frequency band search; and loading all MBN files in the MBN file set into an encryption partition.

The computer readable storage medium may be an internal storage unit of the communication terminal according to any of the foregoing embodiments, for example, a hard disk or a memory of the communication terminal. The computer readable storage medium may also be an external storage device of the communication terminal, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the communication terminal. Further, the computer-readable storage medium may also include both an internal storage unit and an external storage device of the communication terminal. The computer-readable storage medium is used for storing the computer program and other programs and data required by the communication terminal. The computer readable storage medium may also be used to temporarily store data that has been output or is to be output.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the communication terminal and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed communication terminal and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.

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, 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 of the present invention.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention essentially or partially contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A frequency band searching method is applied to a communication terminal, wherein the communication terminal is configured with a radio frequency scheme and a static radio frequency (NV) which meet communication frequency band requirements of at least two regions, and the method comprises the following steps:

after the SIM card is detected to be inserted, acquiring the identification information of the SIM card;

determining a target MBN file corresponding to the identification information from a pre-configured MBN file set, wherein the MBN file set comprises MBN files of at least two regions, and each MBN file in the MBN file set is obtained by configuring a frequency band NV of a protocol class or a frequency band NV of a radio frequency class according to a target frequency band required by SIM cards of different regions; the target MBN file is configured with configuration information of a target frequency band required by the SIM card;

configuring the radio frequency scheme and the static radio frequency NV according to the target MBN file, and searching a frequency band of a target frequency band required by the SIM card according to the target MBN file; the configuring the radio frequency scheme and the static radio frequency NV according to the target MBN file, and performing frequency band search on a target frequency band required by the SIM card according to the target MBN file includes:

activating the target MBN file;

writing the configuration information into the communication terminal;

configuring the radio frequency scheme and the static radio frequency NV according to the configuration information, and searching a frequency band of a target frequency band required by the SIM card according to the configuration information;

the configuration information includes a frequency band NV of a protocol class or a frequency band NV of a radio frequency class.

2. The method according to claim 1, wherein the identification information comprises an integrated circuit card identifier and/or an international mobile subscriber identity, and the determining the target MBN file corresponding to the identification information from the set of preconfigured MBN files comprises:

3. The method according to claim 1, wherein before configuring the radio frequency scheme and the static radio frequency NV according to the target MBN file and performing a frequency band search on a target frequency band required by the SIM card according to the target MBN file, the method further comprises:

and loading all MBN files in the pre-configured MBN file set into an encryption partition.

4. The method of claim 3, wherein loading all MBN files in the set of preconfigured MBN files into an encrypted partition comprises:

after detecting the starting instruction of the frequency band search, acquiring the pre-configured MBN file set;

and loading all MBN files in the MBN file set into an encryption partition.

5. A frequency band search apparatus, wherein the apparatus is configured with a radio frequency scheme and a static radio frequency NV that satisfy communication frequency band requirements of at least two regions, comprising:

a detection unit for detecting insertion of the SIM card;

the acquisition unit is used for acquiring the identification information of the SIM card after the detection unit detects that the SIM card is inserted;

a determining unit, configured to determine a target MBN file corresponding to the identification information from a preconfigured MBN file set, where the MBN file set includes MBN files of the at least two regions, and each MBN file in the MBN file set is obtained by configuring a frequency band NV of a protocol class or a frequency band NV of a radio frequency class according to a target frequency band required by an SIM card in different regions; the target MBN file is configured with configuration information of a target frequency band required by the SIM card;

the frequency band searching unit is used for configuring the radio frequency scheme and the static radio frequency NV according to the target MBN file and searching the frequency band of the target frequency band required by the SIM card according to the target MBN file; the configuring the radio frequency scheme and the static radio frequency NV according to the target MBN file, and performing frequency band search on a target frequency band required by the SIM card according to the target MBN file includes:

activating the target MBN file;

writing the configuration information into the communication terminal;

6. A communication terminal, characterized in that the communication terminal is configured with a radio frequency scheme and a static radio frequency, NV, that fulfill communication band requirements for at least two regions, the communication terminal comprising a processor and a memory, wherein,

the memory for storing a computer program, the computer program comprising program instructions;

the processor calls the program instruction and is used for acquiring the identification information of the SIM card after the SIM card is detected to be inserted;

determining a target MBN file corresponding to the identification information from a pre-configured MBN file set, wherein the MBN file set comprises MBN files of at least two regions, and each MBN file in the MBN file set is obtained by configuring a frequency band NV of a protocol class or a frequency band NV of a radio frequency class according to a target frequency band required by SIM cards of different regions;

activating the target MBN file;

writing the configuration information into the communication terminal;

7. The communication terminal according to claim 6, wherein the identification information comprises an integrated circuit card identification code and/or an International Mobile subscriber identity code,

the processor is used for comparing the integrated circuit card identification code and/or the international mobile subscriber identification code in the identification information with the content of the identification field of the MBN file in the pre-configured MBN file set; and determining a target MBN file corresponding to the integrated circuit card identification code and/or the international mobile subscriber identification code included in the identification information according to the comparison result.

8. A computer-readable storage medium, characterized in that the computer storage medium stores a computer program comprising program instructions that, when executed by a processor, cause the processor to perform the method according to any of claims 1-4.