CN104519538B

CN104519538B - User equipment, request message method of reseptance, device and its system

Info

Publication number: CN104519538B
Application number: CN201310459284.6A
Authority: CN
Inventors: 卢飞; 谢宝国; 梁爽
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2013-09-27
Filing date: 2013-09-27
Publication date: 2019-07-05
Anticipated expiration: 2033-09-27
Also published as: WO2015043244A1; CN104519538A

Abstract

The invention discloses a kind of user equipment, request message method of reseptance, device and its systems, wherein, request message method of reseptance includes: the request message for carrying type of service and/or circuit domain rollback response for receiving user equipment and sending, wherein, which includes following one: tracing section updating request message, Routing Area Update request message, request message of activating business.Through the invention, it solves the problems, such as to reselect 2G/3G network insertion signaling overheads in the case where UE is limited big, reduces the expense of signaling, improve the efficiency of access 2G/3G network.

Description

User equipment, request message method of reseptance, device and its system

Technical field

The present invention relates to the communications field, in particular to a kind of user equipment, request message method of reseptance, device and Its system.

Background technique

The mark of third generation partner program (3rd Generation Partnership Project, referred to as 3GPP) Zhun Hua working group, be committed at present research packet switched core network (Packet Switch Core is referred to as, PS Core) and Global system for mobile communications wireless access network (Universal Mobile Telecommunication System Radio Access Network, referred to as UTRAN) evolution.The research topic is known as System Architecture Evolution (System Architecture Evolution, referred to as SAE), it is therefore an objective to so that evolution grouping net (Evolved Packet Core, Referred to as EPC) it can provide higher transmission rate, shorter transmission delay, optimization grouping and the UTRAN for supporting evolution (Evolved UTRAN, referred to as E-UTRAN), UTRAN, WLAN (Wireless Local Area Network, letter Referred to as WLAN) and other non-3 gpp access network between mobile management.

Fig. 1 is according to the structural schematic diagram of the framework of the SAE of the relevant technologies, as shown in Figure 1, the wireless access network of evolution The network element for including in (Evolved Radio Access Network, referred to as E-RAN) is evolution node B (Evolved NodeB is referred to as, eNodeB), for providing radio resource for the access of user；Packet Data Network (Packet Data Network, referred to as PDN) it is that the network of business is provided for user；EPC provides lower transmission delay, and allows more Wireless access system access, network element include: mobile management entity (Mobility Management Entity, referred to as MME), gateway (Serving Gateway, referred to as SGW), packet data network gateway (PDN Gateway, referred to as PGW), strategy with charging regulation function entity (Policy and Charging Rules Function, referred to as PCRF), return Belong to client server (Home Subscriber Server, referred to as HSS) wherein, MME is the mobile management list of SAE system Member, at Universal Mobile Communication System (Universal Mobile Telecommunications System, referred to as UMTS) In, mobile management unit be service universal grouping wireless service (General Packet Radio Service, referred to as GPRS) supporting node (Serving GPRS Support Node, referred to as SGSN).

For support circuits domain business, 3GPP introduces circuit domain rollback (Circuit Switched in a network Fallback, referred to as CSFB) mechanism, in CSFB mechanism, MME is by SGs interface (between MME and mobile switching centre Interface) with mobile switching centre (Mobile Switched Center, referred to as MSC) connect, in real network MSC with visit It visits location register (Visitor Location Register, referred to as VLR) and realizes unification.Fig. 2 is according to the relevant technologies Tracing section updating and the flow diagram for activating SGs connection, as shown in Fig. 2, being registered in the user equipment under the UTRAN area of coverage (User Equipment, referred to as UE) is moved to the E-UTRAN area of coverage, and in tracing section updating (Tracking Area Update, referred to as TAU) during have activated the process of SGs.The UE being registered under the E-UTRAN area of coverage is moved to Routing Area Update (Route Area Update, referred to as RAU) process caused under the UTRAN area of coverage, with stream shown in Fig. 2 Journey is similar, no longer will individually introduce herein.As shown in Figure 2, comprising the following steps:

Step S201, UE are moved to the E-UTRAN area of coverage under MME, send tracing section updating request message to MME, ask It asks and is registered in new region, update the grouping temporary mobile subscriber identity for carrying that SGSN is UE distribution in request message (Packet-Temporary Mobile Subscriber Identity, referred to as P-TMSI)；

Step S202, new MME send context request signaling to old SGSN and obtain according to P-TMSI identifier lookup to old SGSN Take the context of UE；

The mobile management of user and carrying (bearer) information are sent to new MME, that is, carried out by step S203, old SGSN Hereafter respond；

Step S204, new MME confirm context after receiving context response；

Step S205, new MME update to SGW starting update load bearing request message and carry source GPRS in bearing request message Tunneling protocol control plane (GPRS Tunneling Protocol-Control Plane, referred to as GTP-C) Tunnel Identifier and Purpose GTP-C Tunnel Identifier, the binding relationship of SGW more new bearer；

Step S206, SGW send more new bearer request to PGW, by the address information of SGW, tunnel identification information, access skill The parameters such as art type are sent to PGW.

Step S207, PGW, which updates the context of itself and returns to SGW, updates bearing response message, response message content Address and Tunnel Identifier including PGW etc.；

Step S208, SGW to new MME return more new bearer response, by SGW specify purpose GTP-C Tunnel Identifier, itself Address and PGW address and tunnel information etc. bring MME；

Step S209, new MME notify the change of HSS registered location by location update message；

Step S210, HSS keep single registration principle to UE, send canceling position signaling to old SGSN, only safeguard new MME's Registration；

Step S211, old SGSN is cancelled to HSS return position to be responded；

Step S212, HSS confirm the location updating of new MME；

Step S213, MME send location update request message request to MSC and establish SGs connection, location update request message In carry international mobile subscriber identity (International Mobile Subscriber Identification, letter Referred to as IMSI), Location Area Identification (Location Area Identity, referred to as LAI), MME title, location updating type etc. Parameter；

Step S214, MSC carry out user's inspection, and send location update request message to HSS after inspection passes through；

Step S215, HSS update confirmation message to MSC return position；

Step S216, MSC update received message to MME return position, carry interim shifting in location updating received message Dynamic user identifier (Temporary Mobile Subscriber Identity, referred to as TMSI)；

Step S217 sends tracing section updating to UE and receives if new MME confirmation UE is effective in current tracking area Message needs to carry LAI and TMSI in TAU received message；

Step S218, if new MME is that UE is assigned with a new global unique temporary identity by TAU process (Globally Unique Temporary Identity, referred to as GUTI), then UE meeting returning tracking area updates and completes to disappear It ceases and is confirmed to MME.

Fig. 3 is the process for being limited (back off) by MME according to the UE of free time (ECM_IDLE) state of the relevant technologies

Schematic diagram, the trigger condition that wherein UE of Idle state meets the request of TAU as defined in agreement initiate TAU request.Such as Fig. 3 Shown, which includes the following steps:

The trigger condition that step S301, the UE of Idle state meet the TAU of agreement 3GPP TS24.301 initiates TAU request, asks It asks and is registered in new region, the GUTI value distributed originally is carried in TAU message；

Because resource-constrained, MME has rejected the TAU request message of UE transmission, and returns to UE by step S302, MME TAU refuse information carries in message limited timer (back off timer)；

After receiving the TAU request refuse information sent by MME, Status Change is by UE by step S303, UE The constrained state of EMM.REGISTERED.ATTEMPTING-TO-UPDATE, and limited timer is opened, circumscribed is run in UE When device during, UE cannot actively to network side send the domain packet switch (Packet Switch, referred to as PS) non-emergent business Message；

Step S304, after VLR receives circuit switch domain terminating call business, VLR sends SGs paging message to MME；

Step S305, MME send paging message to UE by eNodeB, and it is user's distribution that network is carried in paging message SAE temporary mobile subscriber identity (SAE-Temporary Mobile Subscriber Identity, referred to as S-TMSI) And the circuit domain identifier for indicating paging service.

Step S306 receives network since UE is under EMM.REGISTERED.ATTEMPTING-TO-UPDATE state After the paging message that side is sent, UE needs to send TAU request as page-response message；

Step S307, MME return to TAU received message to UE；

Step S308, UE needs to send request message of activating business to MME, for showing that UE has received circuit domain rollback Request, and will attempt to connect in the second generation or the third generation (2G/3G) network.

As it can be seen that in the related art, when UE is by limited time, after UE receives page response, UE, which needs first to send TAU to network, to be asked Message is asked to reregister with network, then could can send request message expression of activating business to network receive circuit domain rollback Request；After this procedure, UE can just reselect 2G/3G network and be accessed.It can be seen that UE again from this process It selects the time of 2G/3G network insertion long, be easy to cause the consequence that call waiting time is long, cause poor use Family experience；On the other hand, the signaling that UE is sent to network side is more, also be easy to cause the congestion of network.

For reselecting the big problem of 2G/3G network insertion signaling overheads in the case where UE is limited in the related technology, Currently no effective solution has been proposed.

Summary of the invention

The present invention provides a kind of user equipment, request message method of reseptance, apparatus and system, at least solve UE by The big problem of 2G/3G network insertion signaling overheads is reselected in the case where limit.

According to an aspect of the invention, there is provided a kind of request message method of reseptance, comprising: receive user equipment and send Carry type of service and/or circuit domain retract the request message of response, wherein the request message includes following one: Tracing section updating request message, Routing Area Update request message, request message of activating business.

Preferably, after receiving the request message, the method also includes: according to the request message, to visit Location register sends SGs business request information or SGs and pages refuse information, wherein the SGs business request information or SGs paging refuse information is used to indicate the operation for the circuit domain rollback business that the user equipment executes；Alternatively, being asked according to described Message is sought, Xiang Suoshu user equipment sends the predetermined cause value for refusing the request message, wherein the user equipment root The access second generation or third generation networks are determined according to the predetermined cause value.

Preferably, the user equipment is in the non-emergent service message that packet-switched domain can not be actively sent to network side Constrained state.

Preferably, the type of service includes: that circuit domain rollback business or beginning is exhaled to exhale circuit domain rollback urgency traffic eventually.

Preferably, receive that the user equipment sends carry the circuit domain retract response request message it Afterwards, the method also includes: according to the circuit domain retract respond, determine the user equipment receive circuit domain rollback business or Person's rejector circuit domain rollback business.

Preferably, in the case where the request message is to activate business request, the request of activating business is the use Family equipment is sent under constrained state according to the triggering of the circuit domain rollback business.

Preferably, the type of service carried in the request message exhales circuit domain rollback business and/or institute to be whole It states circuit domain rollback response and indicates that the user equipment receives in the case where exhaling circuit domain rollback eventually, the SGs service request disappears Breath is used to indicate the user equipment and receives to exhale circuit domain rollback business eventually.

Preferably, the type of service carried in the request message is the feelings for beginning to exhale circuit domain rollback urgency traffic Under condition, the SGs business request information is used to indicate the user equipment and actively initiates to begin to exhale circuit domain rollback business.

Preferably, the type of service carried in the request message exhales circuit domain rollback business and/or institute to be whole It states circuit domain rollback response and indicates that the user equipment is refused in the case where exhaling circuit domain rollback eventually, the SGs paging refusal disappears Breath is used to indicate the user equipment refusal and exhales circuit domain rollback business eventually.

According to another aspect of the present invention, a kind of request message reception device is additionally provided, comprising: first receives mould Block, for receiving the request message for carrying type of service and/or circuit domain rollback response of user equipment transmission, wherein institute Stating request message includes following one: tracing section updating request message, Routing Area Update request message, request of activating business disappear Breath.

Preferably, described device further include: the first sending module, for being posted to vision location according to the request message Storage sends SGs business request information or SGs pages refuse information, wherein the SGs business request information or SGs are sought Refuse information is exhaled to be used to indicate the operation for the circuit domain rollback business that the user equipment executes；Alternatively, described first sends mould Block is used for according to the request message, and Xiang Suoshu user equipment sends the predetermined cause value for refusing the request message, In, the user equipment determines the access second generation or third generation networks according to the predetermined cause value.

Preferably, described device is located in mobile management unit, wherein the mobile management unit includes: mobile management Entity and/or general packet wireless service support node.

Preferably, described device further include: the first determining module responds for being retracted according to the circuit domain, determines institute It states user equipment and receives circuit domain rollback business or rejector circuit domain rollback business.

Preferably, first sending module further include: the first determination unit, for what is carried in the request message The type of service is that circuit domain rollback business and/or circuit domain rollback response is exhaled to indicate that the user equipment receives eventually eventually In the case where exhaling circuit domain to retract, according to the request message, determine that the user equipment receives to exhale circuit domain rollback business eventually； First transmission unit, for sending the SGs business request information to the VLR Visitor Location Register, wherein the SGs business Request message is used to indicate the user equipment and receives to exhale circuit domain rollback business eventually.

Preferably, first sending module further include: the second determination unit, for what is carried in the request message The type of service is in the case where beginning to exhale circuit domain rollback urgency traffic, according to the request message, to determine that the user sets It is standby actively to initiate to begin to exhale circuit domain rollback business；Second transmission unit, for sending the SGs to the VLR Visitor Location Register Business request information, wherein the SGs business request information is used to indicate the user equipment and actively initiates to begin that circuit domain is exhaled to return Move back business.

Preferably, first sending module further include: third determination unit, for what is carried in the request message The type of service is that circuit domain rollback business and/or the circuit domain is exhaled to retract the response instruction user equipment refusal eventually eventually In the case where exhaling circuit domain to retract, according to the request message, determine that the user equipment refusal exhales circuit domain rollback business eventually； Third transmission unit pages refuse information for sending the SGs to the VLR Visitor Location Register, wherein the SGs paging Refuse information is used to indicate the user equipment refusal and exhales circuit domain rollback business eventually.

According to another aspect of the present invention, a kind of user equipment is additionally provided, comprising: the second sending module, for sending out Send the request message for carrying type of service and/or circuit domain rollback response, wherein the request message includes following one: with Track area updates request message, Routing Area Update request message, request message of activating business.

Preferably, the user equipment further include: the second determining module, for being used for according to from mobile management unit Refuse the predetermined cause value of the request message, determines the access second generation or third generation networks, wherein the mobile management unit According to the request message, Xiang Suoshu user equipment sends the predetermined cause value.

Preferably, second sending module is also used to: according to the triggering of the circuit domain rollback business, in constrained state It is lower to send to the mobile management unit as request of activating business described in the request message.

According to another aspect of the present invention, a kind of request message transmission system is additionally provided, comprising: ask including above-mentioned Ask the mobile management unit and above-mentioned user equipment of message receiving apparatus.

Through the invention, it is retracted response using carry type of service and/or the circuit domain that receive that user equipment sends Request message, wherein the request message includes following one: tracing section updating request message, expands Routing Area Update request message The mode for opening up business request information, solves that 2G/3G network insertion signaling overheads is reselected in the case where UE is limited is big Problem reduces signaling overheads, improves the efficiency of access 2G/3G network.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:

Fig. 1 is the structural schematic diagram according to the framework of the SAE of the relevant technologies；

Fig. 2 is the tracing section updating according to the relevant technologies and the flow diagram for activating SGs connection；

Fig. 3 is that limited flow diagram is carried out by MME according to the UE of the Idle state of the relevant technologies；

Fig. 4 is the preferred flow schematic diagram one of request message method of reseptance according to an embodiment of the present invention；

Fig. 5 is the preferred flow schematic diagram two of request message method of reseptance according to an embodiment of the present invention；

Fig. 6 is the preferred structure schematic diagram one of request message reception device according to an embodiment of the present invention；

Fig. 7 is the preferred structure schematic diagram two of request message reception device according to an embodiment of the present invention；

Fig. 8 is the preferred structure schematic diagram three of request message reception device according to an embodiment of the present invention；

Fig. 9 is the preferred structure schematic diagram four of request message reception device according to an embodiment of the present invention；

Figure 10 is the preferred structure schematic diagram five of request message reception device according to an embodiment of the present invention；

Figure 11 is the preferred structure schematic diagram of user equipment according to an embodiment of the present invention；

Figure 12 is the system structure diagram of request message transmission system according to an embodiment of the present invention；

Figure 13 is the flow diagram of the method for mobility management process differentiated service according to the preferred embodiment of the invention；

Figure 14 is a kind of flow diagram of implementation method of step S1302 according to an embodiment of the present invention；

Figure 15 is a kind of flow diagram of implementation method of step S1303 according to the preferred embodiment of the invention；

Figure 16 is the flow diagram of another implementation method of step S1302 according to the preferred embodiment of the invention；

Figure 17 is the flow diagram of another implementation method of step S1303 according to an embodiment of the present invention；

Figure 18 is the workflow signal of mobility management process differentiated service system according to the preferred embodiment of the invention Figure；

Figure 19 is the flow diagram for exhaling circuit domain rollback business at end according to the preferred embodiment of the invention；

Figure 20 is the flow diagram according to the preferred embodiment of the invention for beginning to exhale circuit domain rollback business.

Specific embodiment

It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

Step shown in the flowchart of the accompanying drawings can be in a computer system such as a set of computer executable instructions It executes, although also, logical order is shown in flow charts, and it in some cases, can be to be different from herein suitable Sequence executes shown or described step.

Present embodiments provide a kind of request message method of reseptance, comprising: receive the carrying service class that user equipment is sent Type and/or the request message of circuit domain rollback response, wherein the request message includes following one: tracing section updating request disappears Breath, Routing Area Update request message, request message of activating business.

According to the above technical scheme, by the way that type of service and/or circuit domain rollback response to be carried on tracing section updating and ask Ask message, Routing Area Update request message, one of request message of activating business message in send, relative to needing in the related technology The technical solution for reregistering with the related news that could be retracted to network side reporting circuit domain after network, using this programme System in user terminal be not necessarily to can be to network side reporting circuit and rollback industry by the non-emergent service message of ps domain The relevant information of business, so that the feelings of the non-emergent service message of ps domain cannot actively be sent in user terminal to network side by realizing It is able to use signaling few as far as possible under condition to complete to reselect the process of 2G/3G network insertion, solves situation about being limited in UE Under reselect the big problem of 2G/3G network insertion signaling overheads, reduce signaling overheads, reduce the time of access, promoted The efficiency of access 2G/3G network, the user experience is improved.

Fig. 4 is the preferred flow schematic diagram one of request message method of reseptance according to an embodiment of the present invention, as shown in figure 4, The process includes the following steps:

Step S402, the retract request of response of type of service and/or circuit domain that carries for receiving that user equipment sends disappear Breath, wherein the request message includes following one: tracing section updating request message, is activated business at Routing Area Update request message Request message；

Step S404 sends SGs business request information or SGs paging to VLR Visitor Location Register according to request message Refuse information, wherein SGs business request information or SGs paging refuse information are used to indicate the circuit domain that user equipment executes The operation of rollback business.

Through the above steps, by receiving the type of service and/or circuit domain time that user terminal carries in request message The request message of response is moved back, so that the mobile management unit of network side can know that user terminal is held by the request message The operation of capable circuit domain rollback business sends to VLR Visitor Location Register and is used to indicate the circuit domain rollback that user equipment executes After the SGs business request information of the operation of business, network side can support user equipment to reselect connecing for 2G/3G network Enter, to complete circuit domain rollback；If user equipment has rejected and exhales circuit domain rollback business eventually, mobile management unit hair Send SGs paging refuse information to VLR Visitor Location Register, VLR Visitor Location Register can trigger the busy processing of active user or Person discharges active calls.As it can be seen that the limited users equipment solved in the related technology cannot be actively to net using above-mentioned step Network side send reselected caused by the non-emergent business of packet-switched domain 2G/3G network insertion time it is longer and signaling is opened Larger technical problem is sold, the efficiency of access 2G/3G network is improved, improves user experience；Meanwhile also using above-mentioned steps Reduce the signaling sent to network side, so as to avoid the congestion of network.

Preferably, mobile management unit includes: mobile management entity and/or general packet wireless service support node.

Preferably, user equipment be in can not actively to network side send packet-switched domain non-emergent service message by Limit state, such as EMM.REGISTERED.ATTEMPTING-TO-UPDATE state, at this point, user equipment cannot be actively to net The non-emergent service message of network side transmission ps domain.

Preferably, circuit domain, which retracts to respond, is used to indicate user equipment receiving/rejector circuit domain rollback business.It is used receiving After what family equipment was sent carries the request message that circuit domain rollback responds, method further include: it is retracted and is responded according to circuit domain, Determine that user equipment receives circuit domain rollback business or rejector circuit domain rollback business.For example, being had rejected in user equipment After CSFB business, if the response that rejector circuit domain retracts is not notified to send out continuation again to MSC, MSC by user equipment Paging request message is sent, to cause signaling redundancy or congestion.As it can be seen that by this way, network can be further avoided Congestion.

Preferably, type of service includes: that circuit domain rollback business or beginning is exhaled to exhale circuit domain rollback urgency traffic eventually.

Preferably, in the case where request message is to activate business request, request of activating business is user equipment limited It is sent under state according to the triggering of circuit domain rollback business.

Preferably, the type of service carried in request message is that circuit domain rollback business and/or circuit domain is exhaled to retract eventually Response instruction user equipment receives in the case where exhaling circuit domain to retract eventually, and SGs business request information is used to indicate user equipment and connects Circuit domain rollback business is exhaled by whole.

Preferably, the type of service carried in request message is SGs in the case where beginning to exhale circuit domain rollback urgency traffic Business request information is used to indicate user equipment and actively initiates to begin to exhale circuit domain rollback urgency traffic.

Preferably, the type of service carried in request message is that circuit domain rollback business and/or circuit domain is exhaled to retract eventually In the case that response instruction user equipment refusal exhales circuit domain to retract eventually, SGs paging refuse information is used to indicate user equipment and refuses Exhale circuit domain rollback business eventually absolutely.

Fig. 5 is the preferred flow schematic diagram two of request message method of reseptance according to an embodiment of the present invention, as shown in figure 5, The process includes the following steps:

Step S502, the retract request of response of type of service and/or circuit domain that carries for receiving that user equipment sends disappear Breath, wherein the request message includes following one: tracing section updating request message, is activated business at Routing Area Update request message Request message；

Step S504 sends the predetermined cause value for refusing request message to user equipment according to request message, In, user equipment determines the access second generation or third generation networks according to predetermined cause value.

Through the above steps, by receiving, user terminal carries type of service in request message and/or circuit domain retracts The request message of response, so that mobile management unit can know the circuit domain that user terminal executes by the request message The operation of rollback business, after sending the predetermined cause value for refusing request message to user equipment, network side can User equipment is supported to reselect the access of 2G/3G network, the predetermined original that user equipment is responded according to mobile management unit at this time Because value determines access 2G/3G network, to complete circuit domain rollback.As it can be seen that being solved in the related technology using above-mentioned step Limited users equipment cannot actively to network side send packet-switched domain non-emergent business caused by reselect 2G/3G net The time longer technical problem of network access, improves the efficiency of access 2G/3G network, improves user experience；Meanwhile it using Above-mentioned steps also reduce the signaling sent to network side, so as to avoid the congestion of network.

Preferably, user equipment be in can not actively to network side send packet-switched domain non-emergent service message by Limit state.

Preferably, circuit domain retract response be used to indicate user equipment receive circuit domain rollback.

Preferably, in the case where request message is to activate business request, user equipment hair is received in mobile management unit Before the request of activating business sent, this method further include: user equipment is under constrained state according to the touching of circuit domain rollback business Hair sends request of activating business to mobile management unit.

The present embodiment additionally provides a kind of request message reception device, can be applied in mobile management unit, the device For realizing above-mentioned request message method of reseptance, device concrete implementation process described in Installation practice is in embodiment of the method In carried out detailed description, details are not described herein.

The request message reception device includes: the first receiving module, for receive user equipment transmission carry business Type and/or the request message of circuit domain rollback response, wherein request message includes following one: tracing section updating request disappears Breath, Routing Area Update request message, request message of activating business.

Fig. 6 is the preferred structure schematic diagram one of request message reception device according to an embodiment of the present invention, as shown in fig. 6, The device includes: the first receiving module 62 and the first sending module 64, wherein the first receiving module 62 is set for receiving user Type of service that preparation was sent carry and/or circuit domain retract the request message of response, wherein request message include it is following it One: tracing section updating request message, Routing Area Update request message, request message of activating business；The coupling of first sending module 64 To the first receiving module 62, for sending SGs business request information or SGs to VLR Visitor Location Register according to request message Page refuse information, wherein SGs business request information or SGs paging refuse information are used to indicate the electricity that user equipment executes The operation of road domain rollback business.

Involved module, unit can be realized by way of software in the embodiment of the present invention, can also pass through The mode of hardware is realized.Described module in the present embodiment, unit also can be set in the processor, for example, can be with Description are as follows: a kind of processor includes the first receiving module 62 and the first sending module 64.Wherein, the title of these modules is at certain In the case of do not constitute restriction to the module itself, for example, the first receiving module is also described as " for receiving user What equipment was sent carries the module of the request message of type of service and/or circuit domain rollback response ".

Preferably, the first sending module 64 is also used to send to user equipment and disappear for refusing request according to request message The predetermined cause value of breath, wherein user equipment determines the access second generation or third generation networks according to predetermined cause value.

Preferably, circuit domain, which retracts to respond, is used to indicate user equipment receiving/rejector circuit domain rollback business.Fig. 7 is root According to the preferred structure schematic diagram two of the request message reception device of the embodiment of the present invention, as shown in Figure 7, it is preferable that the device is also Include: that the first determining module 72 is coupled to the first receiving module 62, is responded for being retracted according to circuit domain, determine that user equipment connects By circuit domain rollback business or rejector circuit domain rollback business.

Preferably, in the case where request message is to activate business request, the request of activating business be user equipment by It is sent under limit state according to the triggering of circuit domain rollback business.

Preferably, the type of service carried in request message is SGs business in the case where exhaling circuit domain rollback business eventually Request message is used to indicate user equipment and receives to exhale circuit domain rollback business eventually.Fig. 8 is that request according to an embodiment of the present invention disappears The preferred structure schematic diagram three of reception device is ceased, as shown in Figure 8, it is preferable that the first sending module 64 further include: first determines list Member 641, the type of service for carrying in request message are that circuit domain rollback business and/or circuit domain rollback response is exhaled to refer to eventually Show that user equipment receives in the case where exhaling circuit domain to retract eventually, according to request message, determines that user equipment receives to exhale circuit domain eventually Rollback business；First transmission unit 642 is coupled to the first determination unit 641, for sending SGs business to VLR Visitor Location Register Request message, wherein SGs business request information is used to indicate user equipment and receives to exhale circuit domain rollback business eventually.

Preferably, the type of service carried in request message is SGs in the case where beginning to exhale circuit domain rollback urgency traffic Business request information is used to indicate user equipment and actively initiates to begin to exhale circuit domain rollback business.Fig. 9 is according to embodiments of the present invention Request message reception device preferred structure schematic diagram four, as shown in Figure 9, it is preferable that the first sending module 64 further include: Two determination units 643, in the case that the type of service for carrying in request message exhales circuit domain rollback urgency traffic for the beginning, According to request message, determine that user equipment actively initiates to begin to exhale circuit domain rollback urgency traffic；Second transmission unit 644 is coupled to Second determination unit 643, for sending SGs business request information to VLR Visitor Location Register, wherein SGs business request information User equipment is used to indicate actively to initiate to begin to exhale circuit domain rollback urgency traffic.

Preferably, the type of service carried in request message is that circuit domain rollback business and/or circuit domain is exhaled to retract eventually In the case that response instruction user equipment refusal exhales circuit domain to retract eventually, SGs paging refuse information is used to indicate user equipment and refuses Circuit domain rollback business is exhaled absolutely.Figure 10 is the preferred structure schematic diagram of request message reception device according to an embodiment of the present invention Five, as shown in Figure 10, it is preferable that the first sending module 64 further include: third determination unit 645, for being taken in request message The type of service of band is that circuit domain rollback business and/or circuit domain rollback response instruction user equipment refusal is exhaled to exhale circuit domain eventually eventually In the case where rollback, according to request message, determine that user equipment refusal exhales circuit domain rollback business eventually；Third transmission unit 646 It is coupled to third determination unit 645, pages refuse information for sending SGs to VLR Visitor Location Register, wherein SGs paging is refused Exhausted message is used to indicate user equipment refusal and exhales circuit domain rollback business eventually.

The present embodiment additionally provides a kind of user equipment, which is also used for realizing above-mentioned request message recipient Method, user equipment concrete implementation process described in the Installation practice had carried out in detail in above method embodiment Illustrate, details are not described herein.

The user equipment includes: the second sending module, carries type of service and/or circuit domain for sending and retracts response Request message, wherein request message includes following one: tracing section updating request message, Routing Area Update request message, extension Business request information.

Figure 11 is the preferred structure schematic diagram of user equipment according to an embodiment of the present invention, and as shown in figure 11, which sets Standby includes: the second sending module 112 and the second determining module 114, wherein the second sending module 112 passes through Non-Access Stratum (Non- Access-Stratum, abbreviation NAS) it is coupled to mobile management unit, type of service and/or circuit domain time are carried for sending Move back the request message of response, wherein the request message includes following one: tracing section updating request message, Routing Area Update are asked Seek message, request message of activating business；Second determining module 114 is coupled to mobile management unit by NAS layers, for according to next From the tracing section updating received message of mobile management unit, indicate to receive to exhale the user equipment of circuit domain rollback business to open eventually Begin to find the second generation or third generation networks and be accessed, wherein mobile management unit is posted according to request message to vision location Storage sends SGs business request information, and perhaps SGs refuses paging message SGs business request information or SGs refuses paging message It is used to indicate the operation of the circuit domain rollback business of user equipment execution.

Involved module, unit can be realized by way of software in the embodiment of the present invention, can also pass through The mode of hardware is realized.Described module in the present embodiment, unit also can be set in the processor, for example, can be with Description are as follows: a kind of processor includes the second sending module 112 and the second determining module 114.Wherein, the title of these modules is at certain The restriction to the module itself is not constituted in the case of kind, for example, third sending module is also described as " taking for sending The module of request message with type of service and/or circuit domain rollback response ".

Preferably, the second determining module 114 is also used to be used to refuse request message according to from mobile management unit Predetermined cause value determines the access second generation or third generation networks, wherein mobile management unit is set according to request message to user Preparation send predetermined cause value.

Preferably, circuit domain, which retracts to respond, is used to indicate user equipment receiving/rejector circuit domain rollback business.

Preferably, in the case where request message is to activate business request, the second sending module 112 is also used to: according to electricity The triggering of road domain rollback business sends request of activating business to mobile management unit.

Preferably, the type of service carried in request message includes that circuit domain rollback business or beginning is exhaled to exhale circuit domain eventually Rollback urgency traffic.

Preferably, the type of service carried in request message is SGs in the case where beginning to exhale circuit domain rollback urgency traffic Business request information is used to indicate user equipment and actively initiates to begin to exhale circuit domain rollback business.

The present embodiment additionally provides a kind of request message transmission system, and Figure 12 is mobility pipe according to an embodiment of the present invention The system structure diagram of reason system, as shown in figure 12, the system include: the shifting including above-mentioned request message reception device 1222 Dynamic administrative unit 122 and above-mentioned user equipment 124.Preferably, mobile management unit 122 passes through NAS layers and user equipment 124 couplings.

It is described and illustrates below with reference to preferred embodiment.

This preferred embodiment provides method, system and the device of a kind of mobility management process differentiated service.Pass through this Preferred embodiment can be quickly accessed 2G/3G network by limited time in user equipment (including various user terminals), while can be saved Saving the signaling that UE is sent to network side has certain benefit to network congestion is avoided also so as to improve UE stand-by time.

A kind of method for mobility management process differentiated service that this preferred embodiment provides, includes the following steps:

Step 1, disappear in the UE tracing section updating request message sent to mobile management unit or Routing Area Update request Type of service is carried in breath and/or circuit domain retracts and responds；

Step 2, to VLR transmission SGs business request information, perhaps SGs pages refuse information or adopts mobile management unit With suitable cause value refusal tracing section updating request message, Routing Area Update request.

Preferably, mobile management unit is MME and/or SGSN；

Preferably, tracing section updating request message or Routing Area Update request message that UE is sent to mobile management unit The type of service of middle carrying is that circuit domain rollback business or beginning is exhaled to exhale circuit domain rollback urgency traffic eventually；

Preferably, tracing section updating request message or Routing Area Update request message that UE is sent to mobile management unit It is that UE receives circuit domain rollback or UE has rejected circuit domain rollback that the circuit domain of middle carrying, which retracts and responds,；

Preferably, it includes: that mobile management unit receives that mobile management unit, which sends SGs business request information process to VLR, Tracing section updating request message or Routing Area Update request message, and SGs business request information is sent to VLR, for showing UE has received to exhale circuit domain rollback business eventually or has actively initiated to begin to exhale circuit domain rollback business；

Preferably, it includes that mobile management unit receives that mobile management unit, which sends SGs paging refuse information process to VLR, Tracing section updating request message or Routing Area Update request message, and send SGs to VLR and page refuse information, for showing UE has refused to exhale circuit domain rollback business eventually；

Preferably, mobile management unit refuses tracing section updating request message or Route Area more using suitable cause value New request, after UE receives suitable Reason For Denial value, UE is simply selected to 2G/3G and is accessed；

The method for a kind of mobility management process differentiated service that this preferred embodiment provides, comprising: limited UE is being initiated When circuit domain rollback business or beginning being exhaled to exhale circuit domain rollback urgency traffic eventually, request of activating business is sent to mobile management unit Message；

Wherein, limited UE refers to that state is the UE of EMM.REGISTERED.ATTEMPING-TO-UPDATE；

Preferably, sending request message of activating business to mobile management unit includes: that limited UE is initiating to exhale circuit domain eventually Rollback business perhaps begins not sending tracing section updating request message when exhaling circuit domain rollback urgency traffic or Routing Area Update is asked Seek message；

Preferably, sending request message of activating business to mobile management unit is by exhaling circuit domain rollback business to trigger eventually Paging is begun to exhale the triggering of circuit domain rollback urgency traffic.

Below by citing and in conjunction with attached drawing, the embodiment of the present invention is carried out further to combine description.

It should be noted that showing through tracing section updating request in following example and realizing mobile management The method of process differentiated service, however, following scheme is not limited to request using tracing section updating, it can also be using Route Area more New request message realizes, since its implementation is similar with process shown in following Examples, will not be described in great detail herein.

Figure 13 is the flow diagram of the method for mobility management process differentiated service according to the preferred embodiment of the invention, As shown in figure 13, which includes the following steps:

Step S1301, the UE in EMM.REGISTERED.ATTEMPTING-TO-UPDATE state receive paging message Afterwards, UE limited timer out of service, and tracing section updating request message, tracing section updating request are replied to mobile management unit Type of service is carried in message and/or circuit domain retracts and responds；

Step S1302, the service class that mobile management unit receives tracing section updating request message, and carries from message Type and/or circuit domain, which retract, to be responded, and mobile management unit receives tracing section updating request, if type of service is to exhale circuit domain eventually It is that UE receives circuit domain rollback business that rollback business and/or circuit domain, which retract and respond, and mobile management unit can be sent to VLR SGs business request information；If type of service is that UE has rejected to exhale circuit domain rollback business and/or circuit domain rollback response eventually Circuit domain rollback business, mobile management unit can send SGs to VLR and refuse paging message.

Step S1303, if mobile management unit refuses TAU request message, mobile management unit uses suitable reason Value refusal tracking area request message, after UE receives suitable cause value, is directly connected to 2G/3G network.

Step S1302 and step S1303 are illustrated using specific example separately below.

Figure 14 is a kind of flow diagram of implementation method of step S1302 according to an embodiment of the present invention, such as Figure 14 institute Show, MME receive tracing section updating request, and to VLR notify SGs business request information, the process the following steps are included:

Step S1401, after VLR receives circuit switch domain terminating call business, VLR sends SGs paging message to MME；

Step S1402, MME send paging message to UE by eNodeB, and network is carried in paging message as user's distribution S-TMSI and circuit domain identifier for indicating paging service；

Step S1403, the UE in EMM.REGISTERED.ATTEMPTING-TO-UPDATE state receive paging message Afterwards, UE limited timer out of service, and tracing section updating request message is replied to MME, it is taken in tracing section updating request message Band type of service and/or circuit domain, which retract, responds (CSFB response)；Type of service can be exhales circuit domain rollback industry eventually Business, this can be realized by newly increasing information unit or the existing information unit of extension in the message；Circuit domain retracts Response is that UE receives or have rejected circuit domain rollback business.In actual implementation, it is preferable that can only carry electricity in the message Road domain retracts response without carrying type of service, is exactly to exhale circuit domain rollback business eventually for implicit representation type of service；

Step S1404, when circuit domain retract response be UE receive eventually exhale circuit domain rollback business in the case where, MME to VLR sends SGs business request information；When circuit domain rollback response is that UE has rejected circuit domain rollback business, MME is sent to VLR SGs refuses paging message；

Step S1405, MME send TAU received message to UE；After UE receives TAU received message, UE opening timing device, and 2G/3G cell is begun look for be accessed；If UE, which has rejected, exhales circuit domain rollback business eventually, UE will stay on E-UTRAN net In network.

Figure 15 is a kind of flow diagram of implementation method of step S1303 according to the preferred embodiment of the invention, is such as schemed Shown in 15, MME refuses tracking area request message with suitable cause value, and then UE selects 2G/3G network to carry out circuit domain access, The process the following steps are included:

Step S1501, after VLR receives circuit switch domain terminating call business, VLR sends SGs paging message to MME；

Step S1502, MME send paging message to UE by eNodeB, and network is carried in paging message as user's distribution S-TMSI and circuit domain identifier for indicating paging service；

Step S1503, the UE in EMM.REGISTERED.ATTEMPTING-TO-UPDATE state receive paging message Afterwards, UE limited timer out of service, and tracing section updating request message is replied to MME, it is taken in tracing section updating request message Band type of service and/or circuit domain, which retract, responds (CSFB response)；Type of service can be exhales circuit domain rollback industry eventually Business, this can be realized by newly increasing information unit or the existing information unit of extension in the message；Circuit domain retracts Response is that UE receives circuit domain rollback business.In actual implementation, it is preferable that can only carry circuit domain rollback in the message Response is exactly to exhale circuit domain rollback business eventually for implicit representation type of service without carrying type of service；

Step S1504, if UE, which carries out local IP from Home eNodeB (Home eNode B), accesses (Local IP Access, referred to as LIPA) business, and the gateway address that Home eNode B is carried to the gateway address of MME and MME is stored When inconsistent, MME sends TAU refuse information to UE and carries suitable reason in MME into the TAU refuse information that UE is sent Value, carry-on cause value include " without effective bearer context " after UE receives suitable cause value, being simply selected to 2G/3G carries out circuit domain access；The case where needing to refuse TAU request for MME under other scenes is similar with its, does not do specifically It is bright.If circuit domain retracts, response is that UE has rejected circuit domain rollback business, and after UE receives suitable Reason For Denial value, UE will be weighed New registration is into E-UTRAN network.

Figure 16 is the flow diagram of another implementation method of step S1302 according to the preferred embodiment of the invention, such as Shown in Figure 16, UE initiates circuit domain rollback and begins to exhale urgency traffic, and MME receives tracing section updating request, and notifies SGs industry to VLR Be engaged in request message, the process the following steps are included:

Step S1601, the UE in EMM.REGISTERED.ATTEMPTING-TO-UPDATE state receive upper layer instruction After needing to initiate the urgency traffic for beginning that circuit domain is exhaled to retract, UE sends tracing section updating request message to MME, and tracing section updating is asked It asks and carries type of service in message；Type of service can be the urgency traffic for beginning that circuit domain is exhaled to retract, this can be by disappearing Information unit or the existing information unit of extension are newly increased in breath to realize；

Step S1602, MME send TAU received message to UE；After UE receives TAU received message, UE opening timing device, and 2G/3G cell is begun look for be accessed；

Figure 17 is the flow diagram of another implementation method of step S1303 according to an embodiment of the present invention, such as Figure 17 Shown, UE initiates emergency circuit domain rollback and begins to exhale business, and MME refuses tracking area request message with suitable cause value, then UE Select 2G/3G network carry out circuit domain access, the process the following steps are included:

Step S1701, the UE in EMM.REGISTERED.ATTEMPTING-TO-UPDATE state receive upper layer instruction After needing to initiate the urgency traffic for beginning that circuit domain is exhaled to retract, UE sends tracing section updating request message to MME, and tracing section updating is asked It asks and carries type of service in message；Type of service can be the urgency traffic for beginning that circuit domain is exhaled to retract, this can be by disappearing Information unit or the existing information unit of extension are newly increased in breath to realize；

Step S1702, if UE carries out LIPA business from Home eNodeB, and Home eNodeB is carried to the net of MME When the gateway address that pass address and MME are stored is inconsistent, MME sends TAU refuse information to UE, in the TAU that MME is sent to UE In refuse information, suitable cause value is carried, carry-on cause value includes " without effective bearer context " that UE is received After suitable cause value, it is simply selected to 2G/3G and carries out circuit domain access；Need to refuse TAU request for MME under other scenes The case where it is similar with its, do not elaborate.

Figure 18 is the workflow signal of mobility management process differentiated service system according to the preferred embodiment of the invention Figure, as shown in figure 18, the process the following steps are included:

Step S1801, the UE in EMM.REGISTERED.ATTEMPTING-TO-UPDATE receive paging message or Upper layer instruction needs to initiate that circuit domain rollback business or beginning is exhaled to exhale circuit domain rollback urgency traffic eventually；

Step S1802, UE limited timer out of service does not temporarily send tracing section updating request to mobile management unit Message or Routing Area Update request message, and request message of activating business is sent to mobile management unit.

Figure 19 is the flow diagram for exhaling circuit domain rollback business at end according to the preferred embodiment of the invention, such as Figure 19 institute Show, the process the following steps are included:

Step S1901, after VLR receives circuit switch domain terminating call business, VLR sends SGs paging message to MME；

Step S1902, MME send paging message to UE by eNodeB, and network is carried in paging message as user's distribution S-TMSI and circuit domain identifier for indicating paging service；

Step S1903, the UE in EMM.REGISTERED.ATTEMPTING-TO-UPDATE state receive paging message Afterwards, UE limited timer out of service temporarily ceases to MME and sends tracing section updating request message, and sends extension industry to MME It is engaged in request message, carries type of service in message, circuit domain retracts response (CSFB response)；Type of service can be end Exhale circuit domain rollback business；Circuit domain retracts response (CSFB response) for indicating that UE receives or have rejected CSFB industry Business,

Step S1904, if MME receiving is activated business, request message and CSFB response indicate that UE receives to exhale eventually CSFB business, MME send SGs business request information to VLR；Request message and CSFB if MME receiving is activated business Response indicates that UE refusal exhales CSFB business eventually, and MME sends SGs to VLR and refuses paging message；

Step S1905, MME send received message of activating business to UE；UE is received activate business received message after, UE open Timer, and begin look for 2G/3G cell and accessed；The request message if MME refusal is activated business, MME selection are suitable Cause value is simultaneously carried to UE in request message of activating business, for example, if UE carries out LIPA business from Home eNodeB, and When the gateway address that Home eNode B is carried to the gateway address of MME and MME is stored is inconsistent, MME is sent to UE to be extended Service denial message carries suitable cause value, carry-on original in MME into the refuse information of activating business that UE is sent Because value includes " without effective bearer context ", after UE receives suitable cause value, it is simply selected to 2G/3G and carries out circuit domain Access.

Figure 20 is the flow diagram according to the preferred embodiment of the invention for beginning to exhale circuit domain rollback business, such as Figure 20 institute Show, the process the following steps are included:

Step S2001, the UE in EMM.REGISTERED.ATTEMPTING-TO-UPDATE state receive upper layer instruction After needing to initiate the urgency traffic for beginning that circuit domain is exhaled to retract, UE is temporarily ceased to MME transmission tracing section updating request message, and to MME sends request message of activating business, and carries type of service in message；Type of service, which can be, begins to exhale the urgent of circuit domain rollback Business；

Step S2002, MME send received message of activating business to UE；UE is received activate business received message after, UE open Timer, and begin look for 2G/3G cell and accessed；The request message if MME refusal is activated business, MME selection are suitable Cause value is simultaneously carried to UE in request message of activating business, for example, if UE carries out LIPA business from Home eNodeB, and When the gateway address that Home eNodeB is carried to the gateway address of MME and MME is stored is inconsistent, MME sends extension industry to UE Business refuse information carries suitable cause value, carry-on reason in MME into the refuse information of activating business that UE is sent Value includes " without effective bearer context ", after UE receives suitable cause value, is simply selected to 2G/3G progress circuit domain and connects Enter.

Through the above embodiments of the present invention, preferred embodiment and embodiment, in UE by limited time, UE receives paging message Afterwards, type of service is carried in tracing section updating request message, Routing Area Update request message or request message of activating business And/or circuit domain retracts response, solves and reselects that 2G/3G network insertion signaling overheads is big to ask in the case where UE is limited Topic, saves signaling, reduces call waiting time, and it is good to ensure that end exhales user that can also obtain when limited User experience.

Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored Be performed by computing device in the storage device, perhaps they are fabricated to each integrated circuit modules or by they In multiple modules or step be fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific Hardware and software combines.

Above the above is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims

1. a kind of request message method of reseptance, characterized by comprising:

Receive the request message for carrying type of service and/or circuit domain rollback response that user equipment is sent, wherein described to ask Seeking message includes following one: tracing section updating request message, Routing Area Update request message, request message of activating business；

Wherein, the user equipment be in can not actively to network side send packet-switched domain non-emergent service message it is limited State.

2. the method according to claim 1, wherein the method is also wrapped after receiving the request message It includes:

According to the request message, SGs business request information is sent to VLR Visitor Location Register or SGs pages refuse information, Wherein, the SGs business request information or SGs paging refuse information are used to indicate the circuit domain that the user equipment executes and return Move back the operation of business；Alternatively,

According to the request message, Xiang Suoshu user equipment sends the predetermined cause value for refusing the request message, wherein The user equipment determines the access second generation or third generation networks according to the predetermined cause value.

3. the method according to claim 1, wherein the type of service includes: to exhale circuit domain rollback business eventually Or begin to exhale circuit domain rollback urgency traffic.

4. the method according to claim 1, wherein carrying the electricity what the reception user equipment was sent Road domain retracts after the request message responded, the method also includes:

It is retracted and is responded according to the circuit domain, determine that the user equipment receives circuit domain rollback business or rejector circuit domain is returned Move back business.

5. the method according to claim 1, wherein being the case where requesting of activating business in the request message Under, the request of activating business is that the user equipment is sent out under constrained state according to the triggering of the circuit domain rollback business It send.

6. according to the method described in claim 2, it is characterized in that, the type of service carried in the request message is Circuit domain rollback business and/or circuit domain rollback response is exhaled to indicate that the user equipment receives to exhale circuit domain rollback eventually eventually In the case of, the SGs business request information is used to indicate the user equipment and receives to exhale circuit domain rollback business eventually.

7. according to the method described in claim 2, it is characterized in that, the type of service carried in the request message is In the case that beginning exhales circuit domain rollback urgency traffic, the SGs business request information is used to indicate the user equipment and actively sends out Circuit domain rollback business is exhaled in starting.

8. according to the method described in claim 2, it is characterized in that, the type of service carried in the request message is Circuit domain rollback business and/or circuit domain rollback response is exhaled to indicate that the user equipment refusal exhales circuit domain rollback eventually eventually In the case of, the SGs paging refuse information is used to indicate the user equipment refusal and exhales circuit domain rollback business eventually.

9. a kind of request message reception device, characterized by comprising:

First receiving module, carry type of service and/or circuit domain for receiving user equipment transmission retract the asking of response Seek message, wherein the request message includes following one: tracing section updating request message, expands Routing Area Update request message Open up business request information；

10. device according to claim 9, which is characterized in that described device further include:

First sending module, for according to the request message, to VLR Visitor Location Register send SGs business request information or SGs pages refuse information, wherein the SGs business request information or SGs paging refuse information are used to indicate the user and set The operation of the standby circuit domain rollback business executed；Alternatively,

First sending module, for according to the request message, Xiang Suoshu user equipment to be sent for refusing the request The predetermined cause value of message, wherein the user equipment determines the access second generation or third generation net according to the predetermined cause value Network.

11. device according to claim 9, which is characterized in that described device is located in mobile management unit, wherein institute Stating mobile management unit includes: mobile management entity and/or general packet wireless service support node.

12. device according to claim 9, which is characterized in that described device further include:

First determining module responds for being retracted according to the circuit domain, determines that the user equipment receives circuit domain rollback industry Business or rejector circuit domain rollback business.

13. device according to claim 9, which is characterized in that in the request message be to activate business the case where requesting Under, the request of activating business is that the user equipment is sent out under constrained state according to the triggering of the circuit domain rollback business It send.

14. device according to claim 10, which is characterized in that first sending module further include:

First determination unit, the type of service for carrying in the request message are to exhale circuit domain rollback business eventually And/or the circuit domain retracts to respond and indicates that the user equipment receives in the case where exhaling circuit domain to retract eventually, is asked according to described Message is sought, determines that the user equipment receives to exhale circuit domain rollback business eventually；

First transmission unit, for sending the SGs business request information to the VLR Visitor Location Register, wherein the SGs Business request information is used to indicate the user equipment and receives to exhale circuit domain rollback business eventually.

15. device according to claim 10, which is characterized in that first sending module further include:

Second determination unit, the type of service for carrying in the request message are to begin to exhale the urgent industry of circuit domain rollback In the case where business, according to the request message, determine that the user equipment actively initiates to begin to exhale circuit domain rollback business；

Second transmission unit, for sending the SGs business request information to the VLR Visitor Location Register, wherein the SGs Business request information is used to indicate the user equipment and actively initiates to begin to exhale circuit domain rollback business.

16. device according to claim 10, which is characterized in that first sending module further include:

Third determination unit, the type of service for carrying in the request message are to exhale circuit domain rollback business eventually And/or the circuit domain retracts to respond and indicates that the user equipment is refused in the case where exhaling circuit domain to retract eventually, is asked according to described Message is sought, determines that the user equipment refusal exhales circuit domain rollback business eventually；

Third transmission unit pages refuse information for sending the SGs to the VLR Visitor Location Register, wherein the SGs Paging refuse information is used to indicate the user equipment refusal and exhales circuit domain rollback business eventually.

17. a kind of user equipment, characterized by comprising:

Second sending module, for sending the request message for carrying type of service and/or circuit domain rollback response, wherein institute Stating request message includes following one: tracing section updating request message, Routing Area Update request message, request of activating business disappear Breath；

18. user equipment according to claim 17, which is characterized in that the user equipment further include:

Second determining module, the predetermined cause value for being used to refuse the request message for basis from mobile management unit, Determine the access second generation or third generation networks, wherein the mobile management unit is set according to the request message, Xiang Suoshu user Preparation send the predetermined cause value.

19. user equipment according to claim 17, which is characterized in that second sending module is also used to: according to institute The triggering for stating circuit domain rollback business sends the expansion as the request message to mobile management unit under constrained state Open up service request.

20. user equipment described in any one of 7 to 19 according to claim 1, which is characterized in that the type of service includes: Circuit domain rollback business or beginning is exhaled to exhale circuit domain rollback urgency traffic eventually.

21. a kind of request message transmission system, characterized by comprising: including being asked described in any one of claim 9 to 16 Seek user equipment described in any one of mobile management unit and claim 17 to 20 of message receiving apparatus.