WO2013174171A1

WO2013174171A1 - Method and device for obtaining frequency band information of terminal

Info

Publication number: WO2013174171A1
Application number: PCT/CN2013/072519
Authority: WO
Inventors: 任远
Original assignee: 华为技术有限公司
Priority date: 2012-05-22
Filing date: 2013-03-13
Publication date: 2013-11-28
Also published as: CN102695242A; CN102695242B

Abstract

The present invention relates to the field of wireless communications, and disclosed are a method and a device for obtaining frequency band information of a terminal, which enable an access network to obtain frequency band information of a terminal in an access state and an idle state of the terminal. The present invention includes: obtaining a communication standard currently used by a terminal; if it is determined that a user information database stores frequency band information corresponding to the communication standard currently used by the terminal according to identification information of the terminal and the communication standard currently used by the terminal, obtaining the frequency band information from the user information database; the user information database at least comprising correspondence among the identification information of the terminal, the communication standard currently used by the terminal, and the frequency band information; the frequency band information comprising a current frequency band of the terminal or a frequency band support capability of the terminal. Embodiments of the present invention are mainly applicable during the process for the access network to obtain the frequency band information of the terminal.

Description

Method and device for acquiring terminal frequency band information

This application claims priority to Chinese Patent Application No. 201210160264.4, entitled "Method and Apparatus for Acquiring Terminal Band Information", which is filed on May 22, 2012, the entire contents of which are incorporated herein by reference. The present invention relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for acquiring terminal frequency band information. BACKGROUND OF THE INVENTION With the active integration and reorganization of global telecommunication operators, discrete spectrum resources cause multi-band networking scenarios. In the multi-band networking scenario, the access network implements functions such as band assignment in the terminal access state to the terminal and paging in the terminal idle state. For supporting 2G (2nd Generation, For the terminal of the second-generation mobile communication technology, for example, for a single-mode terminal supporting only the 2G system and a multi-mode terminal supporting the 2G system and other systems, when these terminals operate in the 2G system, the access network is It is not possible to obtain the frequency band information of these terminals in the terminal access state or the idle state, whereby the access network is at the terminal When the access mode is used to assign a frequency band to the terminal, it is possible to assign the terminal to a frequency band that is not supported by the terminal, thereby causing the terminal communication failure and affecting the user experience. Further, if the access network is in the idle state when the terminal is in the idle state If paging is performed on the terminal, paging is performed on all the frequency bands used in the scenario of the multi-band networking, thereby increasing the load of the paging channel and causing waste of air interface resources. SUMMARY OF THE INVENTION Embodiments of the present invention provide a The method and device for obtaining the terminal frequency band information, and realizing the acquisition of the terminal frequency band information by the access network in the terminal access state and the idle state. To achieve the above objective, the embodiment of the present invention uses the following technical solution: A method for acquiring terminal frequency band information, including:

Obtaining the communication system currently used by the terminal;

And determining, according to the identification information of the terminal and the communication system currently used by the terminal, that the frequency information corresponding to the communication system currently used by the terminal is stored in the user information database, acquiring the frequency band from the user information database. The user information database includes at least the identification information of the terminal, the correspondence between the communication system currently used by the terminal, and the frequency band information. The frequency band information includes at least the current communication frequency band of the terminal.

Another method for obtaining terminal band information includes:

Obtaining the communication system currently used by the terminal;

And determining, according to the identification information of the terminal and the communication system currently used by the terminal, that the frequency information corresponding to the communication system currently used by the terminal is stored in the user information database, acquiring the frequency band from the user information database. The user information database includes at least the identification information of the terminal, the correspondence between the communication system currently used by the terminal, and the frequency band information; the frequency band information includes at least the frequency band support capability of the terminal. .

A device for acquiring terminal frequency band information, comprising:

a first acquiring unit, configured to acquire a communication standard currently used by the terminal;

a second obtaining unit, configured to: when determining, according to the identification information of the terminal and the communication system currently used by the terminal, the user information database that stores the frequency band information corresponding to the communication system currently used by the terminal, from the user Acquiring the frequency band information in the information database; the user information database includes at least the identification information of the terminal, the correspondence between the communication system currently used by the terminal, and the frequency band information; the frequency band information includes at least The current communication frequency band of the terminal.

Another device for obtaining terminal band information includes:

a second obtaining unit, configured to: according to the identification information of the terminal and the current location of the terminal a communication system, where the frequency band information corresponding to the communication system currently used by the terminal is stored in the user information database, the frequency band information is obtained from the user information database; and the user information database includes at least the terminal And the corresponding relationship between the communication system currently used by the terminal and the frequency band information; the frequency band information includes at least the frequency band support capability of the terminal.

The method and device for acquiring the frequency band information of the terminal provided by the embodiment of the present invention enable the access network to obtain the frequency band information of the user from the user information database in the service state, the access state, or the idle state, so that the access The network assigns the terminal to the frequency band supported by the terminal in the terminal access state, which ensures the successful communication of the terminal and ensures the user experience. At the same time, the access network also makes the paging in the terminal idle state to the current communication frequency band of the terminal. The air interface paging channel waste caused by simultaneous paging in multiple frequency bands is avoided. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below, and obviously, in the following description The drawings are only some of the embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

1 is a flowchart of a method for acquiring terminal frequency band information according to Embodiment 1 of the present invention; FIG. 2 is a flowchart of another method for acquiring terminal frequency band information according to Embodiment 1 of the present invention; 1 is a flowchart of a method for storing terminal frequency band information; FIG. 4 is a flowchart of a method for paging a terminal according to Embodiment 1 of the present invention;

FIG. 5 is a flowchart of a method for band dominance according to Embodiment 1 of the present invention; FIG.

FIG. 6 is a block diagram of a device for acquiring terminal frequency band information according to Embodiment 2 of the present invention; FIG. 7 is a block diagram of another device for acquiring terminal frequency band information according to Embodiment 2 of the present invention; FIG. 8 is a structural block diagram of another apparatus for acquiring terminal frequency band information according to Embodiment 2 of the present invention; FIG.

FIG. 9 is a block diagram showing another apparatus for acquiring terminal frequency band information according to Embodiment 2 of the present invention; FIG.

FIG. 10 is a block diagram showing another component of an apparatus for acquiring terminal frequency band information according to Embodiment 2 of the present invention; FIG.

FIG. 11 is a block diagram showing another component of an apparatus for acquiring terminal frequency band information according to Embodiment 2 of the present invention; FIG.

FIG. 12 is a block diagram showing another component of an apparatus for acquiring terminal frequency band information according to Embodiment 2 of the present invention; FIG.

FIG. 13 is a block diagram showing another configuration of an apparatus for acquiring terminal frequency band information according to Embodiment 2 of the present invention. The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Example 1

The embodiment of the present invention provides a method for acquiring terminal frequency band information, which is implemented by a base station, a base station control, or an RNC (Radio Network Controller) device in the access network, and the method is used to initiate a calling at the terminal. In the business process, as shown in Figure 1, specifically:

101. Obtain a communication standard currently used by the terminal.

The terminal may be a single mode terminal, that is, a terminal that supports only one communication standard, and It can be a multi-mode terminal, and can support a plurality of communication system terminals. The above communication system can be a 2G (2nd generation, second generation mobile communication technology) communication system such as GSM (global system for mobile communications). 3G (3rd generation, 3rd generation mobile communication technology) such as WCDMA (Wideband Code Division Multiple Access), 4G (4th generation, 4th generation mobile communication technology) such as LTE (Long Term Evolution) The communication system and the subsequent communication system, the embodiments of the present invention are no longer listed here.

The communication system currently used by the acquiring terminal can query the activation status of each terminal of the terminal in the management system corresponding to the communication technology of the 2G, 3G or higher access network of the access network by using the identification information of the terminal, that is, The communication system is currently used by the terminal, and the same system is activated in the management system of the access network. The specific implementation method is a technology well known to those skilled in the art, which is not described in detail in this embodiment of the present invention.

The identification information of the terminal may be information having an identification function such as an IMSI (International Mobile Subscriber Identification Number), which is not enumerated herein.

102. If it is determined that the frequency band information corresponding to the communication system currently used by the terminal is stored in the user information database according to the identifier information of the terminal and the communication system currently used by the terminal, obtain the information from the user information database. The frequency band information includes at least the current communication frequency band of the terminal.

The user information database includes at least the identification information of the terminal, the correspondence between the communication system currently used by the terminal, and the frequency band information.

It should be noted that the user information database is used to store a communication system supported by the terminal and frequency band information corresponding to the communication system. When the terminal uses the new communication system, the user information database can store the new communication system and the band information corresponding to the new communication system, and maintain the stored other communication systems and the band information corresponding to these communication systems.

The user information database is in an access network, for example, is saved by a device in the access network that can implement a database function. The embodiment of the present invention further provides a method for acquiring terminal frequency band information, which may also be implemented by a base station, a base station control, or an RNC (Radio Network Controller) device in the access network, and the method is used in the terminal. Accepting the called business process, as shown in Figure 2, specifically includes:

201. Obtain a communication standard currently used by the terminal.

The description of the terminal and the description of the method for obtaining the communication system currently used by the terminal are the same as those described in the step 101, and the details are not described herein.

202. If it is determined that the frequency band information corresponding to the communication system currently used by the terminal is stored in the user information database according to the identifier information of the terminal and the communication system currently used by the terminal, obtain the information from the user information database. The user information database includes at least the identification information of the terminal, the correspondence between the communication system currently used by the terminal, and the frequency band information; the frequency band information includes at least the frequency band of the terminal Support ability.

The related description of the user information database is the same as that described in the step 102, and details are not described herein.

In this embodiment, an embodiment of the present invention provides a method for acquiring terminal frequency band information, which enables an access network to acquire a user from a user information database in a service state, an access state, or an idle state. Band information.

Further, the embodiment of the present invention further provides a method for storing the frequency band information of the terminal, which may be performed before the step 101 or the step 201. As shown in FIG. 3, the method specifically includes:

301. Acquire, from the terminal, a communication standard currently used by the terminal, and frequency band information corresponding to when the terminal uses the current communication standard.

The method for obtaining the communication system currently used by the terminal from the terminal and the method for implementing the corresponding frequency band information when the terminal uses the current communication system may include:

Sending request information to the terminal, requesting the terminal to send the communication standard and frequency segment information of the terminal;

Receiving response information sent by the terminal, where the response information includes a communication standard of the terminal and Band information.

Optionally, the foregoing request information may be sent by the management system of the access network to the terminal when the terminal is in a service state; and then, the management system of the access network receives the response information sent by the terminal. .

It should be noted that the frequency band information acquired in the step 301 may include the current communication frequency band of the terminal and the frequency band support capability of the terminal, that is, the current communication frequency band of the terminal and the terminal. The band support capability is obtained together, and of course, it can be separately obtained, which is not limited by the embodiment of the present invention.

302. Determine, according to the identifier information of the terminal, whether the old frequency band information corresponding to the communication standard currently used by the terminal is stored in the user information database. If the old frequency band information is not stored in the user information database, step 303 is performed; otherwise, step 304 is performed.

303. The communication system currently used by the terminal and the frequency band information corresponding to the communication system currently used by the terminal are directly stored in the user information database.

304. Replace the old frequency band information with the frequency band information corresponding to the terminal when the current communication system is used.

The data storage format in the user information database may be set as the identification information of the terminal, the terminal communication system, the frequency band support capability of the terminal in using the communication system, and the current communication frequency band used by the terminal in the communication system.

It should be noted that, when the terminal is in the service state, the access network may perform the steps 301 to 304 to add new frequency band information in the user information database or update the stored old frequency band information.

In this embodiment, an embodiment of the present invention provides a method for storing terminal frequency band information in a user information database, which acquires frequency band information of a terminal and stores it in a terminal service state to ensure that the access network is in the When the terminal is in other forms, it can also acquire terminal band information.

Optionally, the embodiment of the present invention further provides a method for paging a terminal, which is executed after the step 102, and is applied to a service flow in which the terminal accepts the called party. As shown in FIG. 4, the method package is Includes:

401. Perform paging on the current communication frequency band of the terminal according to the current communication frequency band in the frequency band information used by the terminal in the current communication system.

If the paging fails on the current communication frequency band of the terminal, determining, according to the frequency band support capability of the terminal in the frequency band information, a frequency band currently supported by the terminal, and a frequency band currently supported by the terminal. Paging is performed separately. The frequency band currently supported by the terminal may be one or more.

It is to be noted that the frequency band support capability of the terminal in the frequency band information may be acquired from the user information database together with the current communication frequency band of the terminal, or may be failed to be paged on the current communication frequency band of the terminal. After that, it is obtained from the user information database.

The embodiment provides a method for paging a terminal, so that the access network avoids the waste of the air interface paging channel caused by simultaneous paging in multiple frequency bands when the terminal idles to page in the current communication frequency band of the terminal. .

Optionally, the embodiment of the present invention further provides a method for frequency band assignment, where the method is applied to the terminal accepting the called service flow, and is executed after the step 202. As shown in FIG. 5, the method includes:

501. Determine, according to the frequency band support capability of the terminal obtained in the step 202, a frequency band that the terminal can currently support. If the frequency band currently supported by the terminal has only one frequency band, step 502 is performed; if the frequency band currently supported by the terminal has multiple frequency bands, step 503 is performed.

502. Allocate a frequency band that the terminal can currently support to the terminal.

503. Select one frequency band from multiple frequency bands currently supported by the terminal, and allocate the selected frequency band to the terminal.

The selecting one of the multiple frequency bands currently supported by the terminal can be implemented by the following methods, including:

Selecting a frequency band with the smallest traffic load from a plurality of frequency bands currently supported by the terminal. The embodiment provides a method for assigning a frequency band, so that the access network assigns the terminal to the frequency band supported by the terminal in the terminal access state, which ensures the communication success of the terminal and ensures the user experience. Moreover, the terminal can be assigned to the frequency band with the smallest traffic load, thereby improving the user experience.

The method for obtaining the frequency band information of the terminal provided by the embodiment of the present invention enables the access network to obtain the frequency band information of the user from the user information database in the service state, the access state, or the idle state, so that the access network is in the access network. The terminal access state assigns the terminal to the frequency band supported by the terminal, ensuring the communication success of the terminal and ensuring the user experience. At the same time, the access network is also prevented when the terminal idle state is paging on the current communication frequency band of the terminal. The air interface paging channel caused by simultaneous paging in multiple frequency bands is wasted.

Example 2

An embodiment of the present invention provides a device for acquiring terminal frequency band information. As shown in FIG. 6, the device includes: a first acquiring unit 61 and a second acquiring unit 62.

The first obtaining unit 61 is configured to acquire a communication system currently used by the terminal.

The first determining unit 62 is configured to: when determining, according to the identifier information of the terminal and the communication system currently used by the terminal, that the frequency information corresponding to the communication system currently used by the terminal is stored in the user information database, Obtaining the frequency band information in the user information database; the user information database includes at least the identification information of the terminal, the correspondence between the communication system currently used by the terminal, and the frequency band information; The current communication band of the terminal is included.

Optionally, as shown in FIG. 7, the apparatus further includes: a third acquiring unit 63, a storage unit

64.

The third obtaining unit 63 is configured to acquire, from the terminal, a communication system currently used by the terminal, and frequency band information corresponding to when the terminal uses the current communication system.

The storage unit 64 is configured to store, in the user information database, a communication system currently used by the terminal and frequency band information corresponding to the terminal using the current communication system.

Optionally, as shown in FIG. 8, the apparatus further includes: a determining unit 65 and a replacing unit 66. a determining unit 65, configured to determine the user information data according to the identification information of the terminal Whether the old frequency band information corresponding to the communication system currently used by the terminal is stored in the library.

The storage unit 64 is configured to directly store the communication system currently used by the terminal and the frequency band information corresponding to the communication system currently used by the terminal when determining that the old frequency band information is not stored in the user information database. In the user information database.

The replacing unit 66 is configured to replace, when the old frequency band information is stored in the user information database, the old frequency band information with the frequency band information corresponding to the terminal when the current communication system is used.

Optionally, as shown in FIG. 9, the apparatus further includes: a paging unit 67.

The paging unit 67 is configured to perform paging on a current communication frequency band of the terminal.

Optionally, the paging unit 67 is further configured to: when the paging fails on the current communication frequency band of the terminal, determine, according to the frequency band support capability of the terminal, a frequency band currently supported by the terminal, and according to Paging is performed on the frequency bands currently supported by the terminal.

The embodiment of the present invention further provides an apparatus for acquiring terminal frequency band information. As shown in FIG. 10, the apparatus includes: a first acquiring unit 71 and a second acquiring unit 72.

The first obtaining unit 71 is configured to acquire a communication system currently used by the terminal.

The first determining unit 72 is configured to: when determining, according to the identifier information of the terminal and the communication system currently used by the terminal, that the frequency information corresponding to the communication system currently used by the terminal is stored in the user information database, Obtaining the frequency band information in the user information database; the user information database includes at least the identification information of the terminal, the correspondence between the communication system currently used by the terminal, and the frequency band information; The current communication band of the terminal is included.

Optionally, as shown in FIG. 11, the apparatus further includes: a third acquiring unit 73, a storage unit

74.

The third obtaining unit 73 is configured to acquire, from the terminal, a communication system currently used by the terminal, and frequency band information corresponding to when the terminal uses the current communication system.

a storage unit 74, configured to use a communication system currently used by the terminal, and the terminal The corresponding frequency band information in the current communication system is stored in the user information database.

Optionally, as shown in FIG. 12, the device further includes: a determining unit 75 and a replacing unit 76. The determining unit 75 is configured to determine, according to the identification information of the terminal, whether the old frequency band information corresponding to the communication system currently used by the terminal is stored in the user information database.

The storage unit 74 is configured to directly store the communication system currently used by the terminal and the frequency band information corresponding to the communication system currently used by the terminal when determining that the old frequency band information is not stored in the user information database. In the user information database.

The replacing unit 76 is configured to replace, when the old frequency band information is stored in the user information database, the old frequency band information with the frequency band information corresponding to the terminal when the current communication system is used.

Optionally, as shown in FIG. 13, the apparatus further includes: a second determining unit 77, an allocating unit

78.

The second determining unit 77 is configured to determine, according to the frequency band support capability of the terminal, a frequency band that the terminal can currently support.

The allocating unit 78 is configured to allocate, to the terminal, a frequency band that the terminal can currently support when determining that the frequency band currently supported by the terminal has only one frequency band.

The allocating unit 78 is further configured to: when the frequency band currently supported by the terminal has multiple frequency bands, select one frequency band from a plurality of frequency bands currently supported by the terminal, and allocate the selected frequency band to the terminal .

In addition, it should be noted that the functions implemented by the apparatus for acquiring terminal frequency band information provided by the embodiments of the present invention may be implemented by a base station, a base station controller, or an RNC in the access network, and may be independently set to two. The device may also be implemented by the same device, which is not limited by the embodiment of the present invention.

The device for acquiring the frequency band information of the terminal provided by the embodiment of the present invention can realize that the access network can obtain the frequency band information of the user from the user information database in the service state, the access state, or the idle state, so that the access network is in the access network. The terminal access state assigns the terminal to the frequency band supported by the terminal. The communication success of the terminal is ensured, and the user experience is ensured. At the same time, the access network avoids the air interface paging channel brought by simultaneous paging in multiple frequency bands when the terminal idles to page in the current communication frequency band of the terminal. waste.

The apparatus for acquiring the frequency band information provided by the embodiment of the present invention may be implemented by hardware, for example, integrating all or part of its functions into one processor.

From the description of the above embodiments, it will be apparent to those skilled in the art that the method of the present invention can be implemented by means of software. For example, the portion of the technical solution of the present invention that contributes essentially or to the prior art may be in the form of a software product that may be stored in a readable storage medium, such as a floppy disk stored in a computer. The hard disk or the optical disk is medium; in addition, the method of the present invention can also be implemented by software and corresponding hardware, for example, by executing a number of instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to implement various embodiments of the present invention. The method described in the example.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

Rights request

1. A method for obtaining terminal frequency band information, which is characterized by including:

Get the communication format currently used by the terminal;

If it is determined based on the identification information of the terminal and the communication standard currently used by the terminal that the user information database stores frequency band information corresponding to the communication standard currently used by the terminal, then obtain the frequency band from the user information database Information; The user information database at least includes the identification information of the terminal, the correspondence between the communication standard currently used by the terminal and the frequency band information; the frequency band information at least includes the current communication frequency band of the terminal.

2. The method according to claim 1, characterized in that, before obtaining the communication standard currently used by the terminal, it further includes:

Obtain from the terminal the communication standard currently used by the terminal and the corresponding frequency band information when the terminal uses the current communication standard;

The communication standard currently used by the terminal and the corresponding frequency band information when the terminal uses the current communication standard are stored in the user information database.

3. The method according to claim 2, wherein before storing the frequency band information in the user information database, the method further includes:

According to the identification information of the terminal, determine whether there is old frequency band information corresponding to the communication format currently used by the terminal stored in the user information database;

If the old frequency band information is not stored in the user information database, the communication standard currently used by the terminal and the frequency band information corresponding to the communication standard currently used by the terminal are directly stored in the user information database;

If the old frequency band information is stored in the user information database, the old frequency band information is replaced with the corresponding frequency band information when the terminal uses the current communication standard.

4. The method according to any one of claims 1 to 3, characterized in that, after obtaining the frequency band information used by the terminal in the current communication standard from the user information database, it further includes: Paging is performed on the current communication frequency band of the terminal.

5. The method according to claim 4, wherein the frequency band information also includes the frequency band support capability of the terminal, and the method further includes:

If paging fails on the current communication frequency band of the terminal, determine the frequency band that the terminal currently supports based on the frequency band support capability of the terminal, and perform paging on the frequency bands that the terminal currently supports.

6. A method for obtaining terminal frequency band information, which is characterized by including:

Get the communication format currently used by the terminal;

If it is determined based on the identification information of the terminal and the communication standard currently used by the terminal that the user information database stores frequency band information corresponding to the communication standard currently used by the terminal, then obtain the frequency band from the user information database Information; The user information database at least includes the identification information of the terminal, the correspondence between the communication standard currently used by the terminal and the frequency band information; the frequency band information at least includes the frequency band support capability of the terminal .

7. The method according to claim 6, characterized in that, before obtaining the communication standard currently used by the terminal, it further includes:

8. The method according to claim 7, characterized in that before the network side stores the frequency band information in the user information database, it further includes:

If the old frequency band information is not stored in the user information database, the communication standard currently used by the terminal and the frequency band information corresponding to the communication standard currently used by the terminal are directly stored in the user information database; If the old frequency band information is stored in the user information database, the old frequency band information is replaced with the frequency band information corresponding to when the terminal uses the current communication standard.

9. The method according to any one of claims 6 to 8, characterized in that, after obtaining the frequency band information from the user information database, it further includes:

According to the frequency band support capability of the terminal, determine the frequency band that the terminal can currently support; if there is only one frequency band that the terminal can currently support, allocate one frequency band that the terminal can currently support to the terminal;

If there are multiple frequency bands that the terminal can currently support, select one frequency band from the multiple frequency bands that the terminal can currently support, and allocate the selected frequency band to the terminal.

10. A device for obtaining terminal frequency band information, characterized by including:

The first acquisition unit is used to acquire the communication standard currently used by the terminal;

The second acquisition unit is configured to obtain the information from the user when determining that the user information database stores frequency band information corresponding to the communication format currently used by the terminal based on the identification information of the terminal and the communication format currently used by the terminal. The frequency band information is obtained from an information database; the user information database at least includes the identification information of the terminal, the correspondence between the communication standard currently used by the terminal and the frequency band information; the frequency band information at least includes The current communication frequency band of the terminal.

11. The device according to claim 10, characterized in that, the device further includes: and frequency band information corresponding to when the terminal uses the current communication standard;

A storage unit configured to store the communication standard currently used by the terminal and the corresponding frequency band information when the terminal uses the current communication standard in the user information database.

12. The device according to claim 11, characterized in that, the device further comprises: a determining unit, configured to determine, according to the identification information of the terminal, whether there is a user information database currently used by the terminal stored in the user information database. The old frequency band information corresponding to the communication standard of of pass The frequency band information corresponding to the signal format is directly stored in the user information database; a replacement unit, used to replace the old frequency band information with the old frequency band information when it is determined that the user information database stores the old frequency band information. The corresponding frequency band information when the terminal uses the current communication standard.

13. The device according to any one of claims 10 to 12, characterized in that the device further includes:

A paging unit, used for paging on the current communication frequency band of the terminal.

14. The device according to claim 13, wherein the paging unit is further configured to determine, according to the terminal's frequency band support capability, when paging fails on the terminal's current communication frequency band. The frequency band that the terminal can currently support, and paging is performed based on the frequency band that the terminal can currently support.

15. A device for obtaining terminal frequency band information, characterized by including:

The second acquisition unit is configured to obtain the information from the user when determining that the user information database stores frequency band information corresponding to the communication format currently used by the terminal based on the identification information of the terminal and the communication format currently used by the terminal. The frequency band information is obtained from an information database; the user information database at least includes the identification information of the terminal, the correspondence between the communication standard currently used by the terminal and the frequency band information; the frequency band information at least includes The frequency band support capability of the terminal.

16. The device according to claim 15, characterized in that, the device further includes: and frequency band information corresponding to when the terminal uses the current communication standard;

17. The device according to claim 16, characterized in that, the device further comprises: a first determining unit, configured to determine whether the user information database stores a username and number of the terminal according to the identification information of the terminal. The old frequency band information corresponding to the currently used communication standard interest;

The storage unit is configured to directly store the communication standard currently used by the terminal and the frequency band information corresponding to the communication standard currently used by the terminal when it is determined that the old frequency band information is not stored in the user information database. In the user information database;

A replacement unit, configured to replace the old frequency band information with the corresponding frequency band information when the terminal uses the current communication standard when the old frequency band information is stored in the user information database.

18. The method according to any one of claims 15 to 17, characterized in that the device further includes:

The second determination unit is configured to determine the frequency band that the terminal can currently support according to the frequency band support capability of the terminal;

An allocation unit, configured to allocate one frequency band that the terminal can currently support to the terminal when it is determined that there is only one frequency band that the terminal can currently support;

The allocating unit is also configured to select one frequency band from the multiple frequency bands currently supported by the terminal when the terminal currently supports multiple frequency bands, and allocate the selected frequency band to the terminal.