WO2010048834A1 - Method for updating radio capability, equipment and system thereof - Google Patents

Abstract

A method for updating radio capability, equipment and system thereof are provided. The method includes the following steps: according to the None Access Stratum (NAS) message sent by a User Equipment (UE) in connected state, a Mobile Management Entity (MME) is notified that the GSM/EDGE Radio Access Network (GERAN) / Universal Mobile Telecommunication System Terrestrial Radio Access Network (UTRAN) capability of the UE has changed; radio capability enquiry procedure to the UE is initiated according to the indication of enquiring capability of the UE sent by the MME; and the radio capability information sent by the UE is sent to the MME. The UE in connected state can notify the MME to acquire the new radio capability of the UE in time when the GERAN/UTRAN capability of the UE has changed, and the failure of Inter-Radio Access Technology (Inter-RAT) handover can be avoided.

Description

 Method, device and system for updating wireless capability This application claims to be Chinese patent filed on October 30, 2008, the Chinese Patent Office, application number 200810217504.3, and the invention titled "a method, device and system for wireless capability update" Priority of the application, the entire contents of which are incorporated herein by reference. Technical field

 Embodiments of the present invention relate to wireless communication technologies, and in particular, to a method, device, and system for wireless capability update. Background technique

 LTE (Long Term Evolved, Long Term Evolution) is a mobile communication network actively researched by various vendors in the 3GPP (3rd Generation Partnership Project) organization. It is a Universal Mobile Telecommunication System (UMTS). System) evolution network. The purpose of LTE is to provide a low-cost network that can reduce latency, increase user data rates, increase system capacity and coverage, and use packet domain services to carry IP data packets.

 In the prior art, when the UE (User Equipment) wireless capability changes in the LTE network, the method for the UE to notify the MME (Mobility Management Entity) to perform the wireless capability update includes:

 If the UE is in an idle state, then the UE's GERAN (Global System for Mobile communications/Enhanced Data Rates for GSM Evolution Radio Access Network) / UTRAN (Universal Mobile)

When the capability of the Telecommunication System Terrestrial Radio Access Network is changed, the UE initiates a TAU (Tracking Area Update) process, instructing the MME to initiate a query procedure of the UE radio capability, and updating the UE radio capability saved by the MME; Or, regardless of whether the UE is in an idle state or a connected state, when the E-UTRAN capability of the UE changes, the UE triggers the MME to initiate a query process of the UE wireless capability by initiating a Detach and Re-attach process, and updates the MME. Saved UE wireless capabilities.

 In the process of implementing the present invention, the inventors have found that at least the following problems exist in the prior art: When the GERAN/UTRAN capability of the UE in the connected state changes, the MME cannot obtain the latest UE radio capability, thereby causing Inter-RAT (cross Access system) The switch failed. Summary of the invention

 The embodiment of the invention provides a method, a device and a system for updating a wireless capability, so that a UE in a connected state can notify the MME to acquire a new wireless capability of the UE when its GERAN/UTRAN capability changes.

 The embodiment of the present invention discloses a method for updating a wireless capability, including: notifying a mobility management entity MME of a GSM EDGE radio access network GERAN I of the UE according to a non-access stratum NAS message sent by a user equipment UE in a connected state. The UTTS capability of the UMTS terrestrial radio access network is changed; the radio capability of the UE is queried according to the indication of the MME device, and the radio capability information of the UE is sent to the MME.

 The embodiment of the present invention discloses a mobility management entity MME, including: a receiving unit, configured to receive a non-connection sent by a UE in a connected state when a UT EDGE radio access network GERAN I UMTS terrestrial radio access network UTRAN capability changes And an initiating NAS message, configured to send an indication for querying the capability of the user equipment to the evolved base station eNB, so as to trigger a radio capability query process of the eNB to the UE, and an update unit, configured to receive, by the eNB, Wireless capability information of the UE.

The embodiment of the invention further discloses an evolved base station eNB, comprising: a transceiver unit, configured to receive, when the UE in the connected state sends a UT RAN radio access network GERAN I UMTS terrestrial radio access network UTRAN capability changes Accessing the NAS message, and forwarding the NAS message to the mobility management entity MME; the query unit, configured to use the query sent by the MME An indication of the capability of the user equipment, querying the radio capability of the UE, and an update unit, configured to send the radio capability information of the UE to the MME.

 The embodiment of the invention discloses a system for wireless capability update, which comprises a network side capable of communicating with a user equipment UE, the network side further comprising an evolved base station eNB and a mobility management entity MME:

 The eNB is configured to receive a non-access stratum NAS message sent by the UE in a connected state when the UT EDGE radio access network GERAN I UMTS terrestrial radio access network UTRAN capability changes, and forward the NAS message to the The MME is configured to query the radio capability of the UE according to the indication of the capability of the user equipment that is sent by the MME, and send the radio capability information of the UE to the MME, where the MME is configured to receive the a NAS message sent by the UE in the connected state when the GERAN/UTRAN capability is changed; sending an indication to the eNB to query the capability of the user equipment; and receiving wireless capability information of the UE forwarded by the eNB.

 By comparison, it can be found that one of the above technical solutions has the following advantages or benefits compared with the prior art:

 In the embodiment of the present invention, the mobile management entity MME is notified of the change of the GERAN/UTRAN capability of the UE according to the non-access stratum NAS message sent by the user equipment UE in the connected state; The radio capability inquiry process of the UE; forwarding the radio capability information sent by the UE to the MME; enabling the UE in the connected state to notify the MME to acquire the new radio capability of the UE and avoid the Inter-RAT handover failure when the GERAN/UTRAN capability changes. . DRAWINGS

 1 is a flowchart of a method for updating a wireless capability according to Embodiment 1 of the present invention;

 2 is a flowchart of a method for updating a wireless capability according to Embodiment 2 of the present invention;

 3 is a flowchart of a method for updating a wireless capability according to Embodiment 3 of the present invention;

4 is a flowchart of a method for updating a wireless capability according to Embodiment 4 of the present invention; 5 is a flowchart of a method for updating a wireless capability according to Embodiment 5 of the present invention; FIG. 6 is a flowchart of a method for updating a wireless capability according to Embodiment 6 of the present invention; FIG. 8 is an eNB according to Embodiment 8 of the present invention; Schematic diagram of the structure;

 FIG. 9 is a schematic structural diagram of a system for wireless capability update according to an embodiment of the present invention. detailed description

 The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

 The method for updating the wireless capability provided by the embodiment of the present invention mainly includes: when the GERAN/UTRAN capability of the UE in the connected state is changed, the UE uses a NAS (None Access Stratum) process, such as a TAU process. Or the Service Request (Service Request) procedure to notify the MME that the GERAN/UTRAN capability is changed. In the interface message between the eNB and the MME, the indication information sent by the MME to the eNB is added, and the eNB is notified to initiate the query process of the UE wireless capability. The result of the query is reported to the MME. The indication information can be implemented using parameters in an existing message, newly added parameters, certain fields in existing parameters, or other means, such as other messages or new messages. The above method will be described in detail below.

 1 is a flowchart of a method for updating a wireless capability according to Embodiment 1 of the present invention. The method specifically includes: Step 101: Notify an MME according to a NAS message sent by a UE in a connected state: a GERAN/UTRAN capability of the UE is changed.

 The foregoing NAS message may be: a TAU message, or a Service Request message.

 Step 102: Query the wireless capability of the UE according to the indication of the queried user capability sent by the MME. Step 103: Send wireless capability information sent by the UE to the MME.

The foregoing wireless capability information may be a wireless capability of the UE or information representing a wireless capability of the UE. 2 is a flowchart of a method for updating a wireless capability according to Embodiment 2 of the present invention, which specifically includes: Step 201: When a GERAN/UTRAN capability of a UE in a connected state changes, the UE passes The eNB sends a NAS message to the MME: TAU Request (Location Update Request), notifying the MME of its wireless capability change.

 The UE transmits the NAS message through an RRC (Radio Resource Control) message: UL Information Transfer.

 Step 202: After receiving the RRC message, the eNB transmits the NAS message to the MME by using an S1-AP (SI-Application Protocol SI Interface Application Protocol) message: UPLINK NAS TRANSPORT (uplink non-access layer transmission).

 Step 203: After receiving the TAU Request message, the MME detects that the radio capability of the UE changes, and triggers the eNB to initiate a UE radio capability query process.

 The triggering process is: The MME sends a TAU Accept message to the UE, and the message is transmitted by the S1-AP message: DOWNLINK NAS TRANSPORT (downlink non-access stratum transmission); the MME adds a new DOWNLINK NAS TRANSPORT message. IE (Information Element): The UE Capability Enquire Indicator is used to trigger the eNB to initiate a UE radio capability query procedure.

 Step 204: The eNB receives the DOWNLINK NAS TRANSPORT message, and sends the DL to the UE.

The Information Transfer message conveys the TAU Accept message to the UE.

 Step 205: The eNB sends a UE Capability Enquiry message to the UE according to the UE Capability Enquire Indicator indication, and triggers the UE radio capability query process.

 Step 206: The UE receives the UE Capability Enquiry message, and sends the new UE radio capability to the eNB by using a UE Capability Information message.

 Step 207: After receiving the radio capability sent by the UE, the eNB sends a UE CAPABILITY INFO INDICATION message to the MME, and sends the UE's new radio capability to the MME, thereby completing the radio capability update process.

 After receiving the UE CAPABILITY INFO INDICATION message, the MME may store the new UE radio capability.

It should be particularly noted that the steps 204 and 205 in the foregoing Embodiment 2 are not necessarily in the execution order. Post relationship.

 FIG. 3 is a flowchart of a method for updating a wireless capability according to Embodiment 3 of the present invention, and specifically includes: Steps 301, 302 are substantially the same as steps 201 and 202 in Embodiment 2, and details are not described herein again.

 Step 303a: The MME sends a TAU Accept (Location Update Accept) message to the eNB; the message is transmitted by using a DOWNLINK NAS TRANSPORT message.

 Step 303b: The MME sends a UE CONTEXT MODIFICATION REQUEST message to the eNB, and adds a new IE: UE Capability Enquire Indicator to the eNB to instruct the eNB to trigger the UE radio capability query process.

 Step 303c: The eNB sends a UE CONTEXT MODIFICATION RESPONSE to the MME, and the eNB correctly receives the user equipment capability query indication.

 Steps 304 to 307 are substantially the same as steps 204 to 207 in Embodiment 2, and details are not described herein again.

 It should be noted that the steps 303a and 303b in the foregoing embodiment 3 have no necessary sequential relationship in the execution order; the steps 304 and 305 have no necessary sequential relationship in the execution order.

 FIG. 4 is a flowchart of a method for updating a wireless capability according to Embodiment 4 of the present invention, and specifically includes: Steps 401 and 402 are substantially the same as steps 201 and 202 in Embodiment 2, and details are not described herein again.

 Step 403a: The MME sends a TAU Accept (Location Update Accept) message to the eNB; the message is transmitted by using a DOWNLINK NAS TRANSPORT message.

 Step 403b: The MME sends a UE CAPABILITY INFO ENQUIRE message to the eNB, instructing the eNB to trigger the UE radio capability query process.

 Steps 404 to 407 are basically the same as steps 204 to 207 in Embodiment 2, and details are not described herein again.

 It should be noted that the steps 403a and 403b in the foregoing embodiment 4 have no necessary sequential relationship in the execution order; the steps 404 and 405 have no necessary sequential relationship in the execution order.

 FIG. 5 is a flowchart of a method for updating a wireless capability according to Embodiment 5 of the present invention. The method specifically includes: Step 501: When a GERAN/UTRAN capability of a UE in a connected state changes, the UE sends a

The MME sends a NAS message: Service Request message, and adds a new IE to the message: UE The Capability Update informs the MME that its wireless capabilities have changed. The UE transmits the NAS message through an RRC message: UL Information Transfer.

 Step 502: After receiving the RRC message, the eNB passes the S 1 -AP message: UPLINK NAS

The TRANSPORT passes the above NAS message to the MME. The NAS message carries a UE Capability Update.

 Step 503a: The MME receives the Service Request message, and according to the IE: UE Capability Update indication, finds that the radio capability of the UE changes, and sends the UE CONTEXT to the eNB.

MODIFICATION REQUEST message, and add a new IE to the message: UE Capability

Enquire Indicator, to trigger the eNB to initiate a UE radio capability query process.

 Step 503b: The eNB sends a UE CONTEXT MODIFICATION RESPONSE to the MME, and the eNB correctly receives the user equipment capability query indication.

 Step 504: The eNB sends the UE to the UE according to the UE Capability Enquire Indicator indication.

The Capability Enquiry message triggers the UE wireless capability query process.

 Step 505: The UE receives the UE Capability Enquiry message, and sends the new UE radio capability to the eNB by using a UE Capability Information message.

 Step 506: After receiving the radio capability sent by the UE, the eNB sends the UE CAPABILITY to the MME.

The INFO INDICATION message is used to send the UE's new wireless capability to the MME, thereby completing the wireless capability update process.

 After receiving the UE CAPABILITY INFO INDICATION message, the MME may store the new UE radio capability.

 FIG. 6 is a flowchart of a method for updating a wireless capability according to Embodiment 6 of the present invention, which specifically includes: Steps 601 and 602 are substantially the same as steps 501 and 502 in Embodiment 5, and details are not described herein again.

Step 603: The MME receives the Service Request message, and according to the IE: UE Capability Update indication, if the radio capability of the UE is changed, the UE sends a UE CAPABILITY INFO ENQUIRE message to the eNB, instructing the eNB to trigger the UE wireless capability query. process. Steps 604-606 are substantially the same as steps 504-506 in Embodiment 5, and details are not described herein again.

 It should be particularly noted that, in the above embodiments, the names of the respective information and indications, such as UE Capability Enquire Indicator, UE Capability Update, UE CAPABILITY INFO ENQUIRE, etc., are only used for convenience of description, and represent the information interaction process. The messages of the various corresponding functions are not limited to the scope of application of the embodiments of the present invention, that is, the names may not be adopted in some systems, or the sequence of message transmission/reception is different from the embodiment of the present invention. However, it cannot be considered that the technical solutions in the embodiments of the present invention are not applicable to these systems.

 A person skilled in the art may understand that all or part of the steps in the above embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and the storage medium may be It is ROM/RAM, disk, CD, etc. The receiving unit 701, the triggering query unit 702, and the updating unit 703, where:

 The receiving unit 701 is configured to receive, by the UE in the connected state, the NAS message sent when the GERAN/UTRAN capability changes.

 The NAS message can be: a TAU message, or a Service Request message. The UE notifies the MME by using the NAS message that the radio capability of the UE has changed.

 The triggering query unit 702 is configured to send an indication to the eNB for querying the capability of the user equipment, thereby triggering the eNB to perform a wireless capability query process on the UE.

The trigger query unit 702 can include: a query indication adding unit and a query indication sending unit. The query indication adding unit is configured to add the user equipment capability query indication to the downlink non-access stratum transmission message, or add the user equipment capability query indication to the user equipment context, when the NAS message received by the receiving unit 701 is a TAU message. In the modification request, a separate instruction message for querying the capability of the user equipment is generated: the user equipment capability information query message; or when the NAS message received by the receiving unit 701 is a Service Request message, the user equipment capability query indication is added to the user equipment context modification. Request, or generate a separate query user device capability Indication message: User equipment capability information query message.

 The Query Indication sending unit is configured to send an indication to the eNB to query the capability of the Query User Equipment generated by the adding unit, thereby triggering an eNB to query the UE wireless capability.

 The updating unit 703 is configured to receive wireless capability information of the UE sent by the eNB.

 The MME may further include: a storage unit, configured to store wireless capability information of the UE received by the update unit 703.

 The foregoing wireless capability information may be a wireless capability of the UE or information representing a wireless capability of the UE. FIG. 8 is a schematic structural diagram of an eNB according to Embodiment 8 of the present invention, which specifically includes: a transceiver unit

801, query unit 802, update unit 803, where:

 The transceiver unit 801 is configured to receive, by the UE in the connected state, the NAS message sent when the GERAN/UTRAN capability changes, and forward the NAS message to the MME.

 The query unit 802 is configured to query the radio capability of the UE according to the indication sent by the MME to query the capability of the user equipment.

 The updating unit 803 is configured to send the radio capability information of the UE to the MME.

 The foregoing wireless capability information may be a wireless capability of the UE or information representing a wireless capability of the UE. The following describes the embodiment of the mobile communication system according to the embodiment of the present invention. The system can implement the steps as described in the foregoing method embodiments. It can be understood that the system in the embodiment of the present invention may further include other functions for implementing the communication function. Numerous entities, and other technologies that may be disclosed in the prior art belong to the technology that has been standardized in the communication field, and details are not described in this embodiment; however, in order to introduce the implementation scheme in the embodiment of the present invention, only the system is pointed out here. main part. Referring to FIG. 9, the wireless capability update system includes a network side capable of communicating with the user equipment UE 901, where:

 The network side includes: an evolved base station eNB902, and a mobility management entity MME 903.

The evolved base station eNB 902 is configured to receive the NAS message sent by the UE 901 in the connected state when the GERAN/UTRAN capability is changed, and forward the NAS message to the MME 903; and query the wireless capability of the UE 901 according to the indication of the MME 903 querying the capability of the user equipment. ; The MME 903 transmits the wireless capability information of the UE 901.

 The mobility management entity MME 903 is configured to receive, by the eNB 902, the NAS message that is sent by the UE 901 in the connection state when the GERAN/UTRAN capability is changed; send an indication to the eNB 902 to query the capability of the user equipment; and receive the wireless capability information of the UE 901 forwarded by the eNB 902.

 The foregoing wireless capability information may be a wireless capability of the UE or information representing a wireless capability of the UE. With the method provided by the embodiment of the present invention, the UE in the connected state can notify the MME to acquire the new wireless capability of the UE in time when the GERAN/UTRAN capability changes, and avoid the Inter-RAT handover failure.

 The functional units in the various embodiments of the present invention may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. The integrated modules, if implemented in the form of software functional modules and sold or used as separate products, may also be stored in a computer readable storage medium. The storage medium mentioned above may be a read only memory, a magnetic disk or an optical disk or the like.

 The drawings and the related description are merely illustrative of the principles of the invention and are not intended to limit the scope of the invention. For example, the message names and entities in various embodiments of the present invention may vary depending on the network, and some messages may be omitted. Therefore, any modifications, equivalents, improvements, etc. made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Although the present invention has been illustrated and described with reference to the preferred embodiments of the present invention, those skilled in the art The spirit and scope of the invention.

Claims

Rights request  A method for updating a wireless capability, comprising:  Notifying the mobility management entity MME of the UE's GSM EDGE radio access network GERAN I UMTS terrestrial radio access network UTRAN capability according to the non-access stratum NAS message sent by the user equipment UE in the connected state;  Querying the wireless capability of the UE according to the indication sent by the MME to query the capability of the user equipment;  Transmitting the wireless capability information of the UE to the MME.  The method according to claim 1, wherein the NAS message is specifically: a location update TAIL, or a service request Service Request message.  The method according to claim 2, wherein, when the NAS message is a TAU message, the indication sent by the MME for querying the user equipment capability is specifically:  User equipment capability query indication carried in the downlink non-access stratum transmission message;  Or, the user equipment capability query indication carried in the user equipment context modification request; or the user equipment capability information query message.  The method according to claim 2, wherein, when the NAS message is a Service Request message, the non-access stratum NAS message sent by the user equipment UE specifically includes:  User equipment capability update indication information.  The method according to claim 4, wherein the indication sent by the MME for querying the user equipment capability is specifically:  User equipment capability query indication carried in the user equipment context modification request;  Or, the user equipment capability information query message.  6. A mobility management entity MME, comprising: a receiving unit, configured to receive, by the UE in the connected state, a non-access stratum NAS message sent when the UT RIM radio access network GERAN I UMTS terrestrial radio access network UTRAN capability changes; The triggering query unit is configured to send an indication for querying the capability of the user equipment to the evolved base station eNB, so as to trigger the wireless capability query process of the eNB to the UE;  And an updating unit, configured to receive wireless capability information of the UE sent by the eNB.  The MME according to claim 6, wherein the triggering query unit comprises: a query indication adding unit, configured to: when the NAS message received by the receiving unit is a location update TAU message, the user equipment capability The query indication is added to the downlink non-access stratum transmission message, or the user equipment capability query indication is added to the user equipment context modification request, or a separate indication message for querying the user equipment capability is generated: the user equipment capability information query message;  Or, when the NAS message received by the receiving unit is a service request service request message, adding a user equipment capability query indication to the user equipment context modification request, or generating a single indication message for querying the user equipment capability: user equipment capability The information query message is used by the sending unit to send an indication to the eNB to query the user equipment capability generated by the query indication adding unit, and trigger the query process of the eNB to the UE wireless capability.  The MME according to any one of claims 6 or 7, further comprising: a storage unit, configured to store wireless capability information of the UE received by the update unit.  An evolved base station eNB, comprising:  a transceiver unit, configured to receive a non-access stratum NAS message sent by a UE in a connected state when a UT EDGE radio access network GERAN I UMTS terrestrial radio access network UTRAN capability changes, and forward the NAS message to mobility management Entity MME;  And a querying unit, configured to query, according to the indication of the Querying User Equipment capability sent by the MME, the wireless capability of the UE;  And an updating unit, configured to send, to the MME, wireless capability information of the UE.  A system for wireless capability update, comprising a network side capable of communicating with a user equipment UE, wherein the network side further comprises an evolved base station eNB and a mobility management entity MME: The eNB is configured to receive the UE in a connected state in a GSM EDGE radio access network The non-access stratum NAS message sent when the UTRAN capability of the terrestrial radio access network of the RANTS is changed, the NAS message is forwarded to the MME; and the UE is queried according to the indication of the capability of the user equipment sent by the MME. Wireless capability; transmitting wireless capability information of the UE to the MME;  The MME is configured to receive, by the eNB, a NAS message that is sent by the UE in a connected state when the GERAN/UTRAN capability is changed; send an indication to the eNB to query a capability of the user equipment; and receive the forwarding by the eNB. Wireless capability information of the UE.