WO2012152091A1 - Method and terminal for dynamically shielding frequency band - Google Patents

Abstract

Proposed are a method and terminal for dynamically shielding a frequency band. After starting up, a terminal initiates a network information search process toward a frequency band supported thereby; after having found a wireless network, the terminal reads the broadcast information about the found wireless network; when finishing reading the broadcast information, the terminal judges the current area where it is located according to the information carried in the broadcast information; and the terminal dynamically shields a working frequency band according to the area information. In the technical solution of the present invention, only modification in the terminal is required, while no modification is required at the network side, bringing great convenience to the operator to deploy services; the operator can use different frequency bands according to different service types; and when the operator adds a new frequency band, the working pressure of the previous frequency bands is effectively reduced and the newly added network segment is effectively used, improving the utilization rate of the resources.

Description

 Method and terminal for dynamically shielding frequency band

 The present invention relates to the field of communication technologies, and in particular, to a method and terminal for dynamically shielding a frequency band. Background technique

 At present, with the development of mobile services, the number of mobile terminals has increased dramatically, and the types of mobile terminals have gradually enriched. For example, a normal mobile phone, the main function is to provide users with voice service services; the data card mainly provides users with data services, enabling users to access the Internet anytime, anywhere.

 With the development of mobile services, mobile operators have also developed rapidly. And due to the increase in operators, the working frequency band of mobile services defined in 3GPP is gradually increasing. How to effectively use operators after acquiring new mobile service working bands becomes an important issue for mobile operators.

 Secondly, after the operator acquires a new frequency band, certain services will be fixed to some frequency bands according to their business needs. How to enable the terminal to work in a fixed frequency band in its network without affecting its working state under the roaming network has also become an important issue for operators. Summary of the invention

 In view of this, the main purpose of the present invention is to provide a method and a terminal for dynamically shielding a frequency band, effectively reducing the working pressure of the original frequency band and effectively utilizing the newly added network segment to improve resource utilization.

To achieve the above object, the present invention provides a method for dynamically shielding a frequency band, including: after the terminal is powered on, the terminal initiates a process of searching for network information for a frequency band supported by the terminal; After the network reads the broadcast information of the searched wireless network, after the terminal finishes reading the broadcast information, it determines the current area according to the information carried in the broadcast information; the terminal dynamically shields the working frequency band according to the area information. .

 Further, the area information is a home area or a non-home area; when the terminal is in the home area, the frequency band used by the non-home area is blocked; when the terminal is in the non-home area, the frequency band used by the own area is blocked.

 Further, the terminal determines, according to the information carried in the broadcast information, that the current location is: the terminal determines the area where the terminal is located according to the MCC information acquired in the cell broadcast information.

 Further, the terminal determines, according to the information carried in the broadcast information, that the current location is: The terminal determines according to the PLMN information in the current broadcast information and the MCC in the IMSI information.

 Further, before determining, by the terminal, the PLMN information in the current broadcast information and the MCC in the IMSI information, the terminal further includes: the terminal reading the broadcast information of the mobile network from the cell broadcast information, and parsing the broadcast information to obtain the broadcast information. The PLMN information therein;

 The present invention further provides a terminal for dynamically shielding a frequency band, where the terminal includes a search module, a message acquisition block, a judgment module, and a masking module;

 The searching module is configured to search for a mobile network after the terminal is powered on;

 The information acquiring module is configured to read broadcast information according to network information searched by the search module;

 The determining module is configured to determine, according to the information in the broadcast information, an area where the terminal is located; and the shielding module is configured to determine, according to the broadcast information, channel information that should be currently used, to dynamically adjust the frequency band information.

Further, the area information is a home area or a non-home area; when the terminal is in the home area, the frequency band used by the terminal non-home area is shielded; and when the terminal is in the non-home area, the frequency band used by the terminal home area is shielded. Further, the determining module determines, according to the information in the broadcast information, the area where the terminal is located: determining the area where the terminal is located according to the MCC information acquired in the cell broadcast information.

 Further, the determining module determines, according to the information in the broadcast information, that the location of the terminal is: determining according to the PLMN information in the current broadcast information and the MCC in the terminal IMSI information.

 Further, the determining the channel information that should be currently used according to the broadcast information, and dynamically adjusting the frequency band information to: use different working frequency bands under the roaming network and the home network or the home area.

 In summary, the use of the present invention has the following beneficial effects:

 First, it only needs to be modified on the terminal, and the network side does not need any modification, which brings great convenience for the operator to deploy the service.

 Second, operators can use different frequency bands depending on the type of service. For example, the working frequency band can be specified for the data card product, and the mobile phone product uses another frequency band.

 Thirdly, when the operator adds a new frequency band, the implementation of the method can ensure that some terminals can only work with the newly added frequency band, effectively reducing the working pressure of the original frequency band and effectively utilizing the newly added network. Segment, improved resource utilization. DRAWINGS

 1 is a schematic diagram of a terminal module according to an embodiment of the present invention;

 2 is a schematic diagram of main processes of a method for dynamically shielding a frequency band according to an embodiment of the present invention;

 FIG. 3 is a specific implementation process of a method for dynamically shielding a frequency band according to an embodiment of the present invention. detailed description

 The present invention provides a terminal and method that can dynamically adjust a wireless operating band based on the network conditions in which it is located.

The main idea of the method for dynamically shielding a frequency band according to the present invention includes: after the terminal is powered on, the terminal branch The frequency band held by the terminal initiates a process of searching for network information; after the terminal searches for the wireless network, it reads the broadcast information of the searched wireless network; after the terminal finishes reading the broadcast information, according to the information carried in the broadcast information

The PLMN information determines the current area; the terminal shields the frequency band according to the area information.

 The area information refers to a home area, or a non-home area; specifically, if the mobile terminal is in the home area, the frequency band used by the non-home area is blocked; if the mobile terminal is in the non-home area, the frequency band used by the home area is blocked.

 The technical solutions of the present invention are described in detail below with reference to the accompanying drawings and specific embodiments.

 1 is a mobile terminal according to an embodiment of the present invention. As shown in FIG. 1, the mobile terminal in this embodiment includes a search module, an information acquisition module, a judgment module, and a masking module.

 The search module searches for a mobile network after the mobile terminal is powered on.

 The information acquisition module reads the broadcast information according to the network information searched by the search module. The determining module is based on a public land mobile network in the broadcast information (PLMN, Public

Land Mobile Network ) Information to determine where the area is located.

 The masking module determines channel information that should be currently used according to the broadcast information, thereby realizing dynamic adjustment of the frequency band information.

 The mobile terminal dynamically blocks its working frequency band according to the area in which it is located, which means that the mobile terminal determines the location of the mobile country code (MCC, Mobile Country Code) obtained in the broadcast information, for example, if the broadcast information is obtained. If the MCC is 460, set the working frequency band whose working frequency band is 460. Otherwise, set its working frequency band to the working frequency band of non-460 area.

 The mobile terminal judges the location information according to the PLMN information in the broadcast information: the mobile terminal reads the broadcast information of the mobile network from the broadcast information, and parses the broadcast information to obtain the PLMN information therein.

The fact that the mobile terminal judges the location according to the PLMN information in the broadcast information means that the mobile terminal makes a judgment based on the PLMN information and the MCC in its IMSI information. According to the information, the frequency band information that should be used at present is determined, so that the dynamic adjustment of the frequency band information means that: the mobile terminal can use different working frequency bands under the roaming network and the home network or the home area.

 2 is a schematic diagram of a main flow of a method for dynamically shielding a frequency band according to an embodiment of the present invention. As shown in FIG. 2, the method includes the following steps:

 S201: The mobile terminal is powered on.

 S202: The mobile terminal scans the network according to the frequency band information it supports, and reads the broadcast information in the network.

 S203: The mobile terminal determines, according to the PLMN information in the broadcast information, the current location; if the area information is the home area, the process goes to step S204, and if it is the non-home area, the process goes to step S205.

 S204: If the mobile terminal is in the home zone, block the frequency band used by the non-home zone. S205: If the mobile terminal is in a non-home zone, the frequency band used by the home zone is blocked. The frequency band scanning order of the mobile terminal shown in this embodiment is Band II and Band I. When the MCC information of the area where the mobile terminal is located is 460, the current area is considered to be the home area, otherwise, the current area is considered to belong to the non-home area. The non-home zone mobile terminal uses the Band ll band as the working frequency band; when the area is the non-home zone, the mobile terminal uses Band l as the working frequency band.

 FIG. 3 is a specific implementation process of a method for dynamically shielding a frequency band according to an embodiment of the present invention. As shown in FIG. 3, the method includes the following steps:

 S301: The mobile terminal starts after being powered.

 S302: The mobile terminal scans the frequency band according to its wireless band scanning method. Since the scanning sequence is Band II -> Band I, the bandwidth will be scanned after starting to detect whether the activated cell is searched.

S303: If the active cell is searched, it is determined whether it is currently in the home zone. If the MCC information is 460, the current zone is in the home zone, then go to step S304; otherwise, if the activation is found. If the MCC is not 460, if the MCC is not in the non-home zone, then go to step S306; if no, go to 'J, if the activated cell is not found, go to step S308.

 S304: The mobile terminal deactivates the band Band I and proceeds to step S305.

 S305: The mobile terminal initiates a location update process.

 S306: The mobile terminal searches for the active cell, and the MCC information is not 460, and is currently in the non-home zone. When using Band l to work, the mobile terminal deactivates the Band Π, and proceeds to step S307.

 S307: The mobile terminal initiates a location update process.

 S308: The mobile terminal scans the activated cell on the Band II, and scans the Band 1 according to the frequency band scanning sequence.

 S309: Whether to scan the activated cell, if the activated cell is not scanned, go to step S302; continue scanning.

 S310: If the MCC is not 460, if the MCC is not 460, the process proceeds to step S306; if the MCC is 460, the process goes to step S311.

 S311: The mobile terminal deactivates the Band I, and proceeds to step S302 to re-initiate the search band process.

In the above embodiment, only the method of supporting two frequency bands in the terminal is given, and the same is also applicable to the implementation of supporting multiple frequency bands. In such terminals, the frequency bands supported by them are divided into two groups, one is the frequency band used by the home zone, and the other is the frequency band used by the non-home zone. When it is in the home zone, all the frequency bands used in the non-home zone are shielded; if it is in the non-home zone, all frequency bands in the home zone are shielded. For example: When the mobile terminal supports the bands Band I, Band II, Band IX and Band XI. The frequency bands supported by the mobile terminal in the home zone are Band IX and Band XI, and the frequency bands supported in the non-home zone are Band l and Band II. When it is in the home zone, only Band IX and Band XI are used, and the Bands I and Band II supported by the non-home zone are shielded; when it is in the non-home zone, only Band I and Band II are used. The bands Band IX and Band XI supported by the home zone are shielded.

 Of course, the present invention may be embodied in various other modifications and changes without departing from the spirit and scope of the invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles are intended to be included within the scope of the present invention.

Claims

Claim  A method for dynamically shielding a frequency band, the method comprising:  After the terminal is powered on, the terminal initiates a process of searching for network information for the frequency band supported by the terminal; after the terminal searches for the wireless network, it reads the broadcast information of the searched wireless network; after the terminal finishes reading the broadcast information, according to the broadcast information, Carrying information to determine the current area;  The terminal dynamically shields the working frequency band according to the area information.  2. The method of claim 1 wherein:  The area information is a home area or a non-home area;  When the terminal is in the home zone, the frequency band used by the non-home zone is blocked;  When the terminal is in a non-home zone, it shields the frequency band used by its own home zone.  The method according to claim 1, wherein the terminal determines, according to the information carried in the broadcast information, that the current location is: the terminal determines the location according to the MCC information obtained in the cell broadcast information. Area.  The method according to claim 1, wherein the terminal determines, according to the information carried in the broadcast information, that the current location is: the terminal performs according to the PLMN information in the current broadcast information and the MCC in the self IMSI information. Judge.  The method according to claim 4, wherein before the determining by the terminal according to the PLMN information in the current broadcast information and the MCC in the self IMSI information, the method further includes: the terminal reading from the cell broadcast information The broadcast information of the mobile network is obtained by parsing the broadcast information and obtaining the PLMN information therein.  A terminal for dynamically shielding a frequency band, wherein the terminal comprises a search module, an information acquisition module, a determination module, and a shielding module;  The searching module is configured to search for a mobile network after the terminal is powered on; The information acquiring module is configured to read a broadcast according to network information searched by the search module Information  The determining module is configured to determine, according to the information in the broadcast information, an area where the terminal is located; and the shielding module is configured to determine, according to the broadcast information, channel information that should be currently used, to dynamically adjust the frequency band information.  7. The terminal of claim 6, wherein:  The area information is a home area or a non-home area;  When the terminal is in the home zone, the frequency band used by the terminal non-home zone is blocked;  When the terminal is in a non-home zone, the frequency band used by the terminal's home zone is blocked.  The terminal according to claim 6, wherein the determining module determines, according to the information in the broadcast information, the area where the terminal is located: determining the area where the terminal is located according to the MCC information acquired in the cell broadcast information. .  The terminal according to claim 6, wherein the determining module determines, according to the information in the broadcast information, the area where the terminal is located: according to the PLMN information in the current broadcast information and the MCC in the terminal IMSI information. Judge.  The terminal according to claim 6, wherein the determining the channel information that should be currently used according to the broadcast information, and dynamically adjusting the frequency band information is: using different under the roaming network and the home network or the home area Working frequency band.