WO2013107156A1

WO2013107156A1 - Method, system and base station for obtaining terminal capability information

Info

Publication number: WO2013107156A1
Application number: PCT/CN2012/077764
Authority: WO
Inventors: 陈中明; 杜忠达; 黄河
Original assignee: 中兴通讯股份有限公司
Priority date: 2012-01-20
Filing date: 2012-06-28
Publication date: 2013-07-25
Also published as: CN103220657A

Abstract

A method, base station, system and mobility management entity (MME) for obtaining terminal capability information are disclosed. Said method comprises: the base station sends a terminal capability enquiry request to the terminal; the base station receives the terminal capability information under the frequency division duplex (FDD) mode or time division duplex (TDD) mode returned from the terminal, and sends the terminal capability information under the FDD mode or TDD mode to the mobility management entity and the mobility management entity saves the terminal capability information; the duplex mode of the returned terminal capability information is the same as the duplex mode used by the cell the terminal is in. The present solution guarantees that the network side clearly understands the terminal capability information under different modes.

Description

Method, system and base station for acquiring terminal capability information

Technical field

The present invention relates to the field of radio resource control RRC, and relates to a method, base station and system for acquiring terminal capabilities. Background technique

In the LTE system, the terminal capability query process is as shown in FIG. 1. In the air interface part, the base station eNodeB requests the terminal reporting capability through the UE Capability Enquiry message, and the terminal reports its capability to the base station through the UE Capability Information message. eNodeB. The terminal capability information includes information of various radio access technologies (e.g., LTE, GERAN, UTRA, CDMA) supported by the UE, and includes all supported LTE band information.

In order to save the air interface signaling overhead, the terminal capability information may be designed to be stored in the mobility management entity MME. After the terminal establishes an RRC connection with the base station eNodeB, the MME configures the base station eNodeB with an initial context setup request INITIAL CONTEXT SETUP REQUEST message. If the base station eNodeB does not obtain the terminal capability information from the INITIAL CONTEXT SETUP REQUEST message, the base station eNodeB triggers the terminal capability inquiry process as shown in FIG. 1 , and the base station obtains the capability information and reports the message to the MME through the UE CAPABILITY INFO INDICATION message.

During intra-system or inter-system handover, terminal capability information is passed through the transparent packet between the source base station and the target base station. If the MME changes, the terminal capability information is not transmitted between the MMEs. It needs to be uploaded to the new MME by the target base station, and the terminal capability query process shown in Figure 1 is re-executed.

In the current terminal capability query process, the capability reported by the terminal does not distinguish between TDD and FDD, but the functions of the terminal in the TDD and FDD modes are different, so that when the terminal moves between the TDD and the FDD cell, the network side cannot be clear. Knowing the terminal capabilities, resulting in some terminal functions not working properly. Summary of the invention

The present invention provides a method, a base station, and a system for acquiring terminal capability information, to solve the technical problem of how to enable the network side to clearly understand the terminal capability information in different standards and make the functions of the terminal function normally.

To solve the above technical problem, the present invention provides a method for acquiring terminal capability information, the method comprising:

The base station sends a terminal capability query request to the terminal;

Receiving, by the base station, terminal capability information in a frequency division duplex (FDD) or time division duplex (TDD) system returned by the terminal, and transmitting terminal capability information in the FDD or TDD system to a mobility management entity (MME) For storage thereof, the terminal capability information returned by the terminal belongs to the duplex system and the duplex system used by the cell in which the terminal is located.

Preferably, the base station acquires the terminal capability information of the terminal from the MME, if the MME does not return the terminal capability information of the terminal, or the returned terminal capability information of the terminal does not have the cell where the terminal is located. The terminal capability information in the duplex mode is used, and the terminal capability query request is sent to the terminal.

Preferably, when the base station sends the terminal capability information of the FDD or the TDD system of the terminal to the MME, the message for transmitting the terminal capability information includes the indication information of the duplex system to which the terminal capability information belongs. Preferably, the base station determines, according to the indication information of the duplex system of the terminal that belongs to the terminal capability information that is included in the message that is included in the MME that is sent by the MME, whether the terminal is located in the terminal capability information of the terminal. Terminal capability information in the duplex mode used.

Preferably, the base station acquires the indication information of the duplex system to which the terminal capability information carried in the message including the terminal capability information returned by the MME belongs, and then uses the indication information and the duplex system used by the cell where the terminal is located. For example, if the duplex mode indicated by the indication information is consistent with the duplex system used by the cell where the terminal is located, it is determined that the returned terminal capability information of the terminal is in the duplex mode used by the cell where the terminal is located. If the duplex mode indicated by the indication information is inconsistent with the duplex system used by the cell in which the terminal is located, determining that the returned terminal capability information of the terminal does not have a duplex system used by the cell in which the terminal is located The next terminal can Information.

In order to solve the above technical problem, the present invention further provides a base station that acquires terminal capability information, where the base station includes a sending module and a receiving module, where

The sending module is configured to: send a terminal capability query request to the terminal, and send the terminal capability information in the FDD or TDD system returned by the terminal to the mobility management entity (MME) for storage;

The receiving module is configured to: receive terminal capability information in the FDD or TDD system returned by the terminal, and send the terminal capability information to the sending module, where the terminal capability information returned by the terminal belongs to a duplex system and a location The duplex system used by the cell in which the terminal is located is the same.

Preferably, the base station further includes a determining module;

The determining module is configured to: determine whether the receiving module receives the terminal capability information of the terminal returned by the MME, or receives the returned terminal capability information of the terminal, whether there is a duplex system used by the cell where the terminal is located. Terminal capability information; and when it is determined that the MME does not return the terminal capability information of the terminal to the base station, or the terminal capability information of the returned terminal does not have the terminal capability information in the duplex system used by the cell in which the terminal is located, triggering The sending module sends a terminal capability query request to the terminal.

Preferably, the determining module is configured to: determine whether the returned terminal capability information of the terminal is determined according to the indication information of the duplex system to which the terminal capability information carried in the message including the terminal capability information returned by the MME belongs The terminal capability information in the duplex mode used by the cell in which the terminal is located.

Preferably, the determining module is configured to: after obtaining, from the receiving module, the indication information of the duplex system to which the terminal capability information carried in the message including the terminal capability information returned by the MME belongs, the indication information and the If the duplex mode used by the cell in which the terminal is located is the same as the duplex mode used by the cell in which the terminal is located, it is determined that the terminal capability information of the returned terminal is the terminal. The terminal capability information in the duplex mode used by the cell; if the duplex mode indicated by the indication information is inconsistent with the duplex system used by the cell in which the terminal is located, it is determined that there is no terminal capability information of the returned terminal. Terminal capability information in the duplex mode used by the terminal in the d area. Preferably, the sending module is further configured to: when the terminal capability information in the FDD or TDD system of the terminal is sent to the MME, the message that the terminal capability information is sent includes the duplex system to which the terminal capability information belongs Instructions.

In order to solve the above technical problem, the present invention further provides a mobility management entity (MME), where the MME includes a receiving module, a storage module, and a sending module, where

The receiving module is configured to: receive terminal capability information of a terminal sent by a base station in a frequency division duplex (FDD) or a time division duplex (TDD) system;

The storage module is configured to: store terminal capability information of the terminal in different duplex systems respectively; the sending module is configured to: return the terminal capability information of the stored terminal to the base station when the base station queries.

Preferably, the message that includes the terminal capability information received by the receiving module includes the indication information of the duplex system to which the terminal capability information belongs;

The storage module is configured to: according to the indication information, distinguish the terminal capability information in the FDD or TDD system of the terminal in an explicit manner or an implicit manner.

Preferably, the distinguishing the stored terminal capability information of the terminal in the FDD and the TDD system in an explicit manner includes: storing the terminal capability information when the terminal capability information of the terminal in the FDD and TDD systems is stored Owned system

The implicitly distinguishing the stored terminal capability information of the terminal in the FDD and TDD modes includes: arranging the terminal capability information of the stored terminal in the FDD and TDD systems in a preset order.

Preferably, the sending module is further configured to: when the storage module arranges the terminal capability information of the stored terminal in the FDD and TDD systems in a preset manner, according to the terminal capability of the stored terminal in the FDD and TDD systems The order of the information is returned to the terminal capability information of the terminal; or the sending module is further configured to: return the indication information of the duplex system to which the terminal capability information belongs, while returning the terminal capability information of the terminal.

In order to solve the above technical problem, the present invention further provides a system for acquiring terminal capability information, where the system includes a base station and a mobility management entity (MME), where

The base station uses the base station as described above; The MME uses the MME as described above.

In the foregoing technical solution, the terminal can return the terminal capability information in the frequency division duplex (FDD) or the time division duplex (TDD) system to the base station, so that when the base station sends the terminal capability information to the MME, the MME clearly understands different systems. Terminal capability information. BRIEF abstract

FIG. 1 is a schematic diagram of a terminal capability query process of an LTE system;

2 is a flowchart of a method for acquiring terminal capability information according to the embodiment;

3 is a signal flow diagram of acquiring terminal capability information of a first application example;

4 is a signal flow diagram of acquiring terminal capability information of a second application example;

FIG. 5 is a structural diagram of a base station structure for acquiring terminal capability information according to the embodiment; FIG.

FIG. 6 is a system composition diagram of acquiring terminal capability information according to the embodiment. Preferred embodiment of the invention

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

FIG. 2 is a flowchart of a method for acquiring terminal capability information according to an embodiment of the present disclosure.

The S201 base station sends a terminal capability query request to the terminal;

The base station acquires the terminal capability information of the terminal from the mobility management entity (MME), if the MME does not return the terminal capability information of the terminal, or the returned terminal capability information of the terminal does not exist in the terminal The terminal capability information in the duplex mode used by the cell, where the base station sends a terminal capability query request to the terminal.

For example, the terminal capability information received by the base station from the terminal capability information returned by the MME is the terminal capability information in the TDD system, and the base station knows that the duplex system used by the cell in which the terminal is located is FDD, and the base station sends a terminal capability query request to the terminal; When the base station acquires the terminal capability information of the terminal from the MME, and the returned terminal capability information of the terminal includes the used cell of the terminal The terminal capability information in the duplex mode, the base station does not need to send the terminal capability query request to the terminal; the base station may perform the indication according to the duplex system of the terminal capability information carried in the message including the terminal capability information returned by the MME. And determining, by the terminal capability information of the returned terminal, the terminal capability information in the duplex mode used by the cell where the terminal is located; the base station acquiring, by the MME, the message that is returned by the MME and containing the terminal capability information After the terminal capability information belongs to the indication information of the duplex system, the indication information is compared with the duplex system used by the cell where the terminal is located, if the duplex system indicated by the indication information and the duplex used by the cell where the terminal is located If the system is consistent, determining that the returned terminal capability information of the terminal includes the terminal capability information in the duplex mode used by the cell where the terminal is located; if the indication system indicates the duplex mode and the cell in which the terminal is located If the duplex system is inconsistent, it is determined that the terminal capability information of the returned terminal is not described in the terminal capability information. Capability information of a terminal located in the cell format used in the duplex;

The S202 base station receives the terminal capability information in the FDD or TDD system returned by the terminal, and sends the terminal capability information in the FDD or TDD system to the MME for storage, where the terminal capability information returned by the terminal belongs to The working system is the same as the duplex system used by the cell in which the terminal is located.

When the base station sends the terminal capability information of the FDD or the TDD system of the terminal to the MME, the message for transmitting the terminal capability information includes the indication information of the duplex system to which the terminal capability information belongs;

The MME 4 determines, according to the indication information, a duplex system to which the terminal capability information belongs; if the system of the terminal capability information sent by the base station is different from the format of the terminal capability information that the MME has reserved, the MME retains While storing the terminal capability information, storing the terminal capability information newly reported by the base station;

The MME can distinguish the terminal capability information in the FDD and TDD standards of the stored terminal in an explicit manner when storing the terminal capability information in the FDD or TDD system, and can also distinguish the FDD of the stored terminal in an implicit manner. And terminal capability information under the TDD system.

The explicit manner may be: indicating the duplex mode to which the terminal capability information belongs while storing the terminal capability information;

The implicit mode may distinguish the pair of stored terminal capability information by a preset order. For example, if the terminal capability information in the FDD system is arranged before the terminal capability information in the TDD system, the terminal capability information in the received TDD system may be saved first when the terminal capability information in the FDD system has not been received. , blanking the terminal capability information in the FDD system, etc.;

The MME returns the terminal capability information of the terminal and returns the indication information of the duplex system to which the terminal capability information belongs. If the MME distinguishes the terminal capability information of the FDD and the TDD system of the stored terminal in a preset manner, the MME may directly return the stored terminal capability information according to a preset arrangement manner; the base station may identify the preset The arrangement mode acquires the duplex system to which the terminal capability information belongs.

The above method for obtaining terminal capability information will be further described below with two specific application examples.

It is assumed that in the LTE system, the base station 1 governs two cells, Celll and Cell2, Celll is a cell of the TDD system, and Cell2 is a cell of the FDD system. The UE is a dual mode terminal. The following embodiment describes the case where the terminal moves from TDD to FDD. If the terminal moves from FDD to TDD, the process is the same and will not be repeated.

FIG. 3 is a signal flow diagram of acquiring terminal capability information of the first application example.

The S301 terminal is powered on in Celll to perform an attach process;

S302 establishes an RRC connection with the base station 1 during the attaching process;

S303: The MME sends an initial context setup request INITIAL CONTEXT SETUP REQUEST message to the base station 1;

S304 base station 1 determines that the terminal capability information of the terminal is not included in the INITIAL CONTEXT SETUP REQUEST message;

S305 base station 1 sends a terminal capability query request to the terminal;

S306 terminal acquires Celll's duplex standard TDD;

S307 reports the terminal capability information of the TDD system to the base station 1;

S308 base station 1 transmits terminal capability information of the terminal in the TDD system to the MME;

The base station 1 may simultaneously send the indication information of the duplex system to which the terminal capability information belongs in step S308; The S309 MME stores the terminal capability information of the terminal reported by the base station 1 in the TDD system, and the MME may distinguish the stored terminal capability information in an explicit or implicit manner, that is, TDD or FDD; wherein, if the MME uses the explicit mode, The MME indicates the system to which the terminal capability information belongs when storing the terminal capability information of the terminal in the FDD and the TDD system. When the terminal capability information in the TDD system is stored in the application example, the MME indicates the TDD standard; if the MME uses the implicit mode Then, the MME divides the duplex system to which the stored terminal capability information belongs in a preset order. The application example stores the terminal capability information in the order of the terminal capability information in the TDD system before the terminal capability information in the FDD system. The terminal capability in the TDD system is stored, and the terminal capability in the subsequent FDD system is empty;

After the S310 base station 1 sends the terminal capability information of the terminal in the TDD system to the MME, the RRC connection release process is performed with the terminal.

S311 Terminal 1 moves to the coverage of Cell2 and reselects to Cell2, and re-initiates the attach process due to a failure;

The S312 terminal establishes an RRC connection with the base station 1 during the attaching process;

S313 MME sends initial context setup request to base station 1 INITIAL CONTEXT

SETUP REQUEST message;

The S314 base station 1 determines that the terminal capability information included in the message is the terminal capability information in the TDD system, and the duplex system used by the cell Cell2 in the terminal is FDD, and the two systems are different;

The MME may return the indication information of the duplex system to which the terminal capability information belongs, while returning the terminal capability information of the terminal;

If the MME uses the implicit terminal to distinguish the stored terminal capability information from TDD or FDD, the MME may return the terminal capability information of the terminal according to the sequence of the terminal capability information of the stored terminal in the FDD and TDD systems. In this application example, The returned terminal capability information is the terminal capability information in the TDD system, and the terminal capability information in the FDD system after the blanking.

If the MME uses an implicit method, it is arranged according to the terminal capability information in the FDD system.

When the terminal capability information is stored in the order of the terminal capability information in the TDD system, the terminal capability information returned by the MME is the terminal capability information in the FDD system that is blanked, and the terminal capability information in the TDD system that follows. S315 base station 1 sends a terminal capability query request to the terminal;

The S316 terminal acquires the duplex mode FDD of Cell2;

The S317 terminal reports the terminal capability information of the FDD system to the base station 1;

The S318 base station 1 sends the terminal capability information of the terminal in the FDD system to the MME, and includes indication information of the FDD system;

The S319 MME stores the terminal capability information of the terminal reported by the base station 1 in the FDD system. After the step, the MME stores the terminal capability information of the terminal in the TDD system and the terminal capability information of the terminal in the FDD system.

After transmitting the terminal capability information of the terminal in the FDD system to the MME, the S320 base station 1 performs an RRC connection release process with the terminal.

If the MME changes with the MME, the new MME does not have the capability information of the UE, and the target base station where the terminal is located needs to send the terminal capability information of the terminal to the new MME. The related process is consistent with the application example. No longer said.

4 is a signal flow diagram of acquiring terminal capability information of a second application example.

The S401 terminal camps in Cell2 and initiates an RRC connection establishment process with the base station 1;

S402: The MME sends an initial context setup request INITIAL CONTEXT SETUP REQUEST message to the base station 1;

The S403 base station 1 determines that the terminal capability information included in the message is the terminal capability information in the TDD system, and the duplex system used by the cell Cell2 in the terminal is FDD, and the two systems are different; S404 base station 1 sends the terminal capability query to the terminal. Request

The S405 terminal acquires the duplex mode FDD of Cell2;

The S406 terminal reports the terminal capability information of the FDD system to the base station 1;

S407 base station 1 sends terminal capability information of the terminal in the FDD system to the MME, and includes indication information of the FDD system;

The S408 MME stores the terminal capability information of the terminal reported by the base station 1 in the FDD system. After the step, the MME saves the terminal capability information of the terminal in the TDD system and the terminal capability information of the terminal in the FDD system. In step S403, if the base station 1 determines that the terminal capability information of the terminal is not included in the INITIAL CONTEXT SETUP REQUEST message, the base station 1 also initiates a terminal capability information query request to the terminal, and the query is used by the terminal in the cell Cell2. The terminal capability information in the duplex mode; if the base station 1 determines that the INITIAL CONTEXT SETUP REQUEST message includes the terminal capability information in the TDD system and the terminal capability information in the FDD system, the base station 1 may not initiate the terminal capability information to the terminal. Query request.

FIG. 5 is a structural diagram of a base station structure for acquiring terminal capability information according to the embodiment.

The base station includes a sending module and a receiving module, where

a sending module, configured to send a terminal capability query request to the terminal, and send the terminal capability information in the FDD or TDD system returned by the terminal to the mobility management entity (MME) for storage; the sending module is further configured to: When the terminal capability information in the FDD or TDD system of the terminal is sent to the MME, the message for transmitting the terminal capability information includes the indication information of the duplex system to which the terminal capability information belongs;

a receiving module, configured to receive terminal capability information in the FDD or TDD system returned by the terminal, and send the terminal capability information to the sending module, where the terminal capability information returned by the terminal belongs to a duplex system and a The duplex system used by the cell in which the terminal is located is the same.

The foregoing base station may further include a determining module, configured to determine whether the receiving module receives the terminal capability information of the terminal returned by the MME, or whether the returned terminal capability information of the terminal is used by the cell where the terminal is located. Terminal capability information in the duplex mode; and determining that the MME does not return the terminal capability information of the terminal to the base station, or the returned terminal capability information of the terminal does not have the terminal capability in the duplex system used by the cell in which the terminal is located When the information is sent, the sending module is triggered to send a terminal capability query request to the terminal. For example, the determining module determines that the terminal capability information returned from the MME is the terminal capability information in the TDD system, and the duplex system used by the cell in which the terminal is located is FDD, triggering the sending module to send a terminal capability query request to the terminal; When the determining module determines that the terminal capability information of the terminal is returned from the MME, and the returned terminal capability information of the terminal includes the terminal capability information in the duplex mode used by the cell where the terminal is located, the The sending module sends a terminal capability query request to the terminal;

The determining module may be carried according to the message that is returned by the MME and includes the terminal capability information. The terminal capability information of the terminal belongs to the indication information of the duplex system, and determines whether the terminal capability information of the returned terminal has the terminal capability information in the duplex mode used by the cell where the terminal is located; when the determining module is from the receiving module After obtaining the indication information of the duplex system to which the terminal capability information carried in the message including the terminal capability information that is returned by the MME belongs, the indication information is compared with the duplex system used by the cell where the terminal is located, if the indication is The duplex mode of the information indication is consistent with the duplex system used by the cell in which the terminal is located, and determining that the terminal capability information of the returned terminal has the terminal capability information in the duplex mode used by the cell in which the terminal is located; If the duplex system indicated by the indication information is inconsistent with the duplex system used by the cell in which the terminal is located, it is determined that the terminal capability information of the returned terminal does not have the terminal capability information in the duplex mode used by the cell in which the terminal is located.

The foregoing MME may include a receiving module, a storage module, and a sending module, where

The receiving module is configured to receive terminal capability information of a terminal transmitted by a base station in a frequency division duplex (FDD) or a time division duplex (TDD) system;

The message that includes the terminal capability information received by the receiving module may include indication information of a duplex system to which the terminal capability information belongs;

The storage module is configured to separately store terminal capability information of the terminal in different duplex systems; when the receiving module receives the indication information of the duplex system to which the terminal capability information belongs, the storage module may explicitly display the indication information according to the indication information. The terminal capability information in the FDD or TDD system for storing the terminal is differentiated in a manner or an implicit manner.

The method for distinguishing the terminal capability information of the terminal in the FDD and the TDD system in an explicit manner includes: storing a terminal capability information of the terminal in the FDD and the TDD system, and indicating a system to which the terminal capability information belongs; The terminal capability information of the terminal in the FDD and TDD systems is determined in an implicit manner, and the terminal capability information of the stored terminal in the FDD and TDD systems is arranged in a preset order.

The sending module is configured to return, to the base station, the terminal capability information of the stored terminal when the base station queries; and when the storage module arranges the terminal capability information of the stored terminal in the FDD and TDD systems in a preset manner. Returning the terminal capability information of the terminal according to the stored order of the terminal capability information of the terminal in the FDD and TDD systems; or returning to the terminal of the terminal The capability information also returns the indication information of the duplex system to which the terminal capability information belongs.

FIG. 6 is a system composition diagram of acquiring terminal capability information according to the embodiment.

The system includes a base station and a Mobility Management Entity (MME).

The base station includes a sending module and a receiving module, where:

a sending module, configured to send a terminal capability query request to the terminal, and send the terminal capability information in the FDD or TDD system returned by the terminal to the mobility management entity (MME) for storage; the receiving module is configured to receive the terminal return The terminal capability information in the FDD or TDD system is sent to the sending module, and the terminal capability information returned by the terminal belongs to the duplex system used by the terminal in which the terminal is located;

The foregoing base station may further include a determining module, configured to determine whether the receiving module receives the terminal capability information of the terminal returned by the MME, or whether the returned terminal capability information of the terminal is used by the cell where the terminal is located. Terminal capability information in the duplex mode; and determining that the MME does not return the terminal capability information of the terminal to the base station, or the returned terminal capability information of the terminal does not have the terminal capability in the duplex system used by the cell in which the terminal is located When the information is sent, the sending module is configured to send a terminal capability query request to the terminal; the determining module may determine, according to the indication information of the duplex system that belongs to the terminal capability information that is included in the message that is included in the terminal capability information that is returned by the MME, Whether the terminal capability information of the terminal has the terminal capability information in the duplex mode used by the cell where the terminal is located; and the judging module carries the message containing the terminal capability information returned by the MME from the receiving module. After the terminal capability information belongs to the indication information of the duplex system, The indication information is compared with a duplex system used by the cell in which the terminal is located, and if the duplex mode indicated by the indication information is consistent with the duplex system used by the cell in which the terminal is located, determining the returned terminal capability of the terminal The information includes the terminal capability information in the duplex mode used by the cell in which the terminal is located; if the duplex mode indicated by the indication information is inconsistent with the duplex system used by the cell in which the terminal is located, determining the returned terminal The terminal capability information does not include the terminal capability information in the duplex mode used by the cell in which the terminal is located.

The base station sending module may be further configured to: when the terminal capability information in the FDD or the TDD system of the terminal is sent to the MME, the message that sends the terminal capability information includes the indication information of the duplex system to which the terminal capability information belongs. . The MME in the system may include a receiving module, a storage module, and a sending module, where the receiving module is configured to receive a terminal capability of the terminal sent by the base station in a frequency division duplex (FDD) or a time division duplex (TDD) system. information;

The sending module is configured to return, to the base station, the terminal capability information of the stored terminal when the base station queries; and when the storage module arranges the terminal capability information of the stored terminal in the FDD and TDD systems in a preset manner. Returning the terminal capability information of the terminal according to the stored order of the terminal capability information of the terminal in the FDD and the TDD system; or returning the terminal capability information of the terminal and returning the duplex system to which the terminal capability information belongs Instructions.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be accomplished by a program instructing the associated hardware, such as a read-only memory, a magnetic disk, or an optical disk. Optionally, all or part of the steps of the foregoing embodiments may also be implemented by using one or more integrated circuits. Accordingly, each module/unit in the foregoing embodiment may be implemented in the form of hardware, or may use software functions. The form of the module is implemented. The invention is not limited to any specific form of combination of hardware and software.

It should be noted that the present invention may have various other embodiments without departing from the spirit of the present invention. And deformations, but such corresponding changes and modifications are intended to fall within the scope of the appended claims.

Industrial applicability

In the foregoing technical solution, the terminal can return the terminal capability information in the frequency division duplex (FDD) or the time division duplex (TDD) system to the base station, so that when the base station sends the terminal capability information to the MME, the MME clearly understands different systems. Terminal capability information.

Claims

Claim

1. A method for obtaining terminal capability information, comprising:

The base station sends a terminal capability query request to the terminal;

2. The method according to claim 1, further comprising:

The base station acquires the terminal capability information of the terminal from the MME, if the MME does not return the terminal capability information of the terminal, or the returned terminal capability information of the terminal does not have the double used by the cell where the terminal is located. The terminal capability information in the working system is sent to the terminal to send a terminal capability query request.

3. The method according to claim 1 or 2, further comprising:

When the base station sends the terminal capability information of the terminal in the FDD or the TDD system to the MME, the message for transmitting the terminal capability information includes the indication information of the duplex system to which the terminal capability information belongs.

4. The method of claim 2, wherein

Determining, by the base station according to the indication information of the duplex system of the terminal capability information that is included in the message that the terminal capability information is returned, that is returned by the MME, Terminal capability information under the system.

5. The method of claim 4, wherein

After the base station acquires the indication information of the duplex system to which the terminal capability information carried in the message including the capability information of the terminal that is returned by the MME belongs, the base station compares the indication information with the duplex system used by the cell where the terminal is located, and if If the duplex mode indicated by the indication information is consistent with the duplex system used by the cell where the terminal is located, determining that the terminal capability information of the returned terminal has the terminal capability information in the duplex mode used by the cell where the terminal is located ; if the indication indicates the duplex If the system is inconsistent with the duplex system used by the cell in which the terminal is located, it is determined that the terminal capability information of the returned terminal does not have the terminal capability information in the duplex mode used by the cell in which the terminal is located.

A base station that acquires terminal capability information, where the base station includes a sending module and a receiving module, where

The base station according to claim 6, wherein the base station further includes a determining module, wherein the determining module is configured to: determine whether the receiving module receives the terminal capability information of the terminal returned by the MME, or receives the returned Whether the terminal capability information of the terminal in the duplex mode used by the cell in which the terminal is located is included in the terminal capability information of the terminal; and determining that the MME has not returned the terminal capability information of the terminal to the base station, or the terminal capability of the returned terminal When the terminal does not have the terminal capability information in the duplex mode used by the cell in which the terminal is located, the sending module is triggered to send a terminal capability query request to the terminal.

8. The base station according to claim 7, wherein

The determining module is configured to: determine, according to the indication information of the duplex system of the terminal that belongs to the terminal capability information that is included in the message that is included in the information about the terminal capability, that is returned by the MME, Terminal capability information in the duplex mode used by the cell.

9. The base station according to claim 8, wherein

The determining module is configured to: after obtaining, from the receiving module, the indication information of the duplex system that belongs to the terminal capability information that is included in the message that is sent by the MME, and the indication information and the cell where the terminal is located If the duplex mode indicated by the indication information is consistent with the duplex system used by the cell in which the terminal is located, it is determined that the returned terminal capability information of the terminal is used by the cell in which the terminal is located. Terminal capability information in the duplex mode; if the indication system indicates the duplex mode and the duplex system used by the cell in which the terminal is located, If the terminal capability information of the returned terminal is not consistent, the terminal capability information in the duplex mode used by the cell where the terminal is located is not determined.

The base station according to any one of claims 6 to 9, wherein

The sending module is further configured to: when the terminal capability information in the FDD or TDD system of the terminal is sent to the MME, the message that sends the terminal capability information includes the indication information of the duplex system to which the terminal capability information belongs .

A mobility management entity (MME), where the MME includes a receiving module, a storage module, and a sending module, where

12. The MME according to claim 11, wherein

The message that is received by the receiving module and includes the capability information of the terminal includes the indication information of the duplex system to which the terminal capability information belongs;

13. The MME according to claim 12, wherein

The method for distinguishing the stored terminal capability information of the terminal in the FDD and the TDD system in an explicit manner includes: when storing the terminal capability information of the terminal in the FDD and TDD systems, indicating the system to which the terminal capability information belongs ;

14. The MME according to claim 12, wherein

The sending module is further configured to: arrange the stored terminal in a preset manner in the storage module When the terminal capability information in the FDD and the TDD system is used, the terminal capability information of the terminal is returned according to the stored order of the terminal capability information of the terminal in the FDD and TDD systems; or

The sending module is further configured to: return the indication information of the duplex system to which the terminal capability information belongs, while returning the terminal capability information of the terminal.

15. A system for acquiring terminal capability information, the system comprising a base station and a mobility management entity (MME), wherein

The base station uses the base station according to any one of claims 6 to 9;

The MME uses the MME as claimed in claim 11.

16. The system of claim 15 wherein

The base station uses the base station according to claim 10;

The MME uses the MME according to any one of claims 12 to 14.