CN106572504A - Cluster system switching method and device - Google Patents

Abstract

The invention provides a cluster system switching method and device. The method comprises steps that a first cluster business registration request sent by a target EPC is received by a target dispatcher, the first cluster business registration request is sent by the target dispatcher to an anchoring dispatcher, a conversation establishment request sent by the anchoring dispatcher according to the first cluster business registration request is received by the target dispatcher, the conversation establishment request is sent to the target EPC, a switching accomplishment response sent by the target EPC according to the conversation establishment request is received by the target dispatcher, the switching accomplishment response is sent to the anchoring dispatcher, an NAS signaling is sent by UE to a target MME of the target EPC, the NAS signaling is analyzed by the target MME, the analyzed NAS signaling after re-packaging is sent through the target dispatcher to the anchoring dispatcher, and signaling interaction between the UE after switching and the anchoring dispatcher is realized. According to the method, a control signaling between the UE and the target EPC is the NAS signaling, time delay is low, and user experience is improved.

Description

The method and device of group system switching

Technical field

The present invention relates to communication technology, more particularly to a kind of method and device of group system switching.

Background technology

Group system is a kind of mobile communication system for being mainly used in command scheduling, is widely used in government The fields such as office, airport harbour or industrial and mining establishment.Group system is the user equipment (User of group system Equipment；Referred to as：UE) group service is provided, wherein basic service is voice group call service. The UE of group system often moves to the UE of another cell, i.e. group system from cell May need in different Evolved Packet Core (Evolved Packet Core；Referred to as：EPC) Between switch over.Describe for convenience, the EPC before switching is referred to as into current EPC, need switching EPC extremely and evolved base station (Evolved NodeB；Referred to as：ENB) be referred to as target EPC and Target eNB.

Long Term Evolution (Long Term Evolution；Referred to as：LTE) the speech business of system public network In, UE and network protocol multi-media sub-system (Internet Protocol Multimedia Subsystem； Referred to as：IMS) control signaling between domain is session initiation protocol (Session Initiation Protocol； Referred to as：SIP) signaling, UE is switched to after target EPC from current EPC, send SIP signalings to SIP signalings are sent to target EPC by target eNB, target eNB, specifically, the meeting of target eNB Destination service gateway (Serving Gateway SIP signalings being sent in target EPC；Referred to as： SGW), SIP signalings are sent to target SGW the current grouped data net gateway in current EPC (PDN Gateway；Referred to as：PGW), the target ip address in current PGW parsings packet, SIP signalings are sent to into network protocol multi-media sub-system (the Internet Protocol of UE Multimedia Subsystem；Referred to as：IMS) domain, completes the transmission of the chain of command after UE switchings.

But, due to SIP signaling delays it is higher, in group system, if the UE of group system The control signaling and dispatcher of group system between still adopt SIP signalings, then can due to time delay compared with Height causes Consumer's Experience poor.

The content of the invention

The present invention provides a kind of method and device of group system switching, to improve Consumer's Experience.

The present invention provides a kind of method of group system switching, including：

Target dispatch machine receives the first group service registration of target evolved packet-based core networks EPC transmissions please Ask, wherein, the target dispatch machine is corresponding dispatcher after user equipment (UE) switching, the target EPC is corresponding EPC after UE switchings；

The target dispatch machine to grappling dispatcher sends the first group service registration request, wherein, The grappling dispatcher is the Service control dispatcher of the UE；

The target dispatch machine receives the grappling dispatcher and is sent out according to the first group service registration request The session establishment request sent, and session establishment request is sent to into target EPC；

The target dispatch machine receives target EPC asks the switching for sending complete according to the session establishment Into response, and the switching is completed response and is sent to the grappling dispatcher.

Further, the target dispatch machine sends the first group service registration and asks to grappling dispatcher Before asking, also include：

The target dispatch machine obtains the grappling dispatcher according to the first group service registration request Routing iinformation.

Further, the mobile station world comprising the UE is comprehensive in the first group service registration request Close service digital network number MSISDN；

The target dispatch machine obtains the grappling dispatcher according to the first group service registration request Routing iinformation, including：

It is corresponding that the target dispatch machine obtains the MSISDN from home signature user server HSS The routing iinformation of grappling dispatcher.

Further, anchored mobility management entity MME is included in the first group service registration request Identity number ID；

The target dispatch machine obtains the grappling dispatcher according to the first group service registration request Routing iinformation, including：

The target dispatch machine inquiry MME ID and the corresponding relation of dispatcher, obtain the grappling MME The routing iinformation of the corresponding grappling dispatchers of ID.

Further, grappling MME ID are included in the first group service registration request；

The target dispatch machine obtains the grappling dispatcher according to the first group service registration request Routing iinformation, including：

The target dispatch machine receives target MME and is dispatched according to the grappling that the grappling MME ID send The routing iinformation of machine.

Further, the MSISDN comprising the UE in the first group service registration request；

The target dispatch machine obtains the grappling dispatcher according to the first group service registration request Routing iinformation, including：

The target dispatch machine obtains the address of the corresponding current scheduling machines of the MSISDN from HSS, Wherein, the current scheduling machine is corresponding dispatcher before UE switchings；

The target dispatch machine to the current scheduling machine sends the second group service registration request；

The target dispatch machine receives the current scheduling machine and is sent out according to the second group service registration request The first response sent, determines the routing iinformation of the grappling dispatcher, comprising described in first response The routing iinformation of grappling dispatcher.

Further, current MME ID are included in the first group service registration request；

The target dispatch machine obtains the grappling dispatcher according to the first group service registration request Routing iinformation, including：

The target dispatch machine inquiry MME ID and the corresponding relation of dispatcher, obtain the current MME The address of the corresponding current scheduling machines of ID, wherein, the current scheduling machine is correspondence before UE switchings Dispatcher, the current MME be the UE switching before corresponding MME；

The target dispatch machine to the current scheduling machine sends the second group service registration request；

The target dispatch machine receives the current scheduling machine and is sent out according to the second group service registration request The first response sent, determines the routing iinformation of the grappling dispatcher, comprising described in first response The routing iinformation of grappling dispatcher.

Further, current MME ID are included in the first group service registration request；

The target dispatch machine obtains the grappling dispatcher according to the first group service registration request Routing iinformation, including：

The target dispatch machine receives the address of the current scheduling machine that target MME sends, wherein, it is described Current scheduling machine is corresponding dispatcher before UE switchings, and target MME is UE switchings Corresponding MME afterwards；

The target dispatch machine to the current scheduling machine sends the second group service registration request；

The target dispatch machine receives the current scheduling machine and is sent out according to the second group service registration request The first response sent, determines the routing iinformation of the grappling dispatcher, comprising described in first response The routing iinformation of grappling dispatcher.

The present invention provides a kind of method of group system switching, including：

Target dispatch machine receives the first group service registration of target evolved packet-based core networks EPC transmissions please Ask, wherein, the target dispatch machine is corresponding dispatcher after user equipment (UE) switching, the target EPC is corresponding EPC after UE switchings；

The target dispatch machine determines that the target dispatch machine is grappling dispatcher, wherein, the grappling is adjusted Degree machine is the Service control dispatcher of the UE；

The target dispatch machine to target EPC sends session establishment request；

The target dispatch machine receives target EPC asks the switching for sending complete according to the session establishment Into response.

Further, also include：

The target dispatch machine discharges the session between the target dispatch machine and current scheduling machine, wherein, The current scheduling machine is corresponding dispatcher before UE switchings.

The present invention provides a kind of method of group system switching, including：

Grappling dispatcher receives the first group service registration request that target dispatch machine sends, wherein, it is described Grappling dispatcher is the Service control dispatcher of user equipment (UE), and the target dispatch machine is the UE Corresponding dispatcher after switching；

The grappling dispatcher sends according to the first group service registration request to the target dispatch machine Session establishment is asked；

The grappling dispatcher receives the switching of the target dispatch machine transmission and completes response.

Further, the switching that the grappling dispatcher reception target dispatch machine sends completes response Afterwards, also include：

The grappling dispatcher is discharged between the grappling dispatcher and grappling Evolved Packet Core EPC Session, wherein, the grappling EPC is EPC corresponding with the grappling dispatcher.

Further, the switching that the grappling dispatcher reception target dispatch machine sends completes response Afterwards, also include：

The grappling dispatcher discharges the session between the grappling dispatcher and current scheduling machine, wherein, The current scheduling machine is corresponding dispatcher before UE switchings.

The present invention also provides a kind of device of group system switching, including：

First receiver module, for receiving the first cluster industry of target evolved packet-based core networks EPC transmissions Business registration request, wherein, target EPC is corresponding EPC after user equipment (UE) switching；

Sending module, for sending the first group service registration request to grappling dispatcher, wherein, The grappling dispatcher is the Service control dispatcher of the UE；

Second receiver module, please according to first group service registration for receiving the grappling dispatcher The session establishment for asking transmission is asked, and session establishment request is sent to into target EPC；

3rd receiver module, asks what is sent to cut for receiving target EPC according to the session establishment Change and complete response, and the switching is completed into response and be sent to the grappling dispatcher.

Further, described device also includes：

Acquisition module, for obtaining the grappling dispatcher according to the first group service registration request Routing iinformation.

Further, the mobile station world comprising the UE is comprehensive in the first group service registration request Close service digital network number MSISDN；

The acquisition module from home signature user server HSS specifically for obtaining the MSISDN The routing iinformation of corresponding grappling dispatcher.

Further, anchored mobility management entity MME is included in the first group service registration request Identity number ID；

The acquisition module obtains the anchor specifically for inquiry MME ID and the corresponding relation of dispatcher Determine the routing iinformation of the corresponding grappling dispatchers of MME ID.

Further, grappling MME ID are included in the first group service registration request；

The acquisition module is specifically for receiving the anchor that target MME sends according to the grappling MME ID Determine the routing iinformation of dispatcher.

Further, the MSISDN comprising the UE in the first group service registration request；

The acquisition module is specifically included：

First acquisition unit, for obtaining the ground of the corresponding current scheduling machines of the MSISDN from HSS Location, wherein, the current scheduling machine is corresponding dispatcher before UE switchings；

First transmitting element, for sending the second group service registration request to the current scheduling machine；

First receiving unit, please according to second group service registration for receiving the current scheduling machine Ask the first of transmission to respond, determine the routing iinformation of the grappling dispatcher, include in first response The routing iinformation of the grappling dispatcher.

Further, current MME ID are included in the first group service registration request；

The acquisition module is specifically included：

Second acquisition unit, for inquiring about the corresponding relation of MME ID and dispatcher, obtains described current The address of the corresponding current scheduling machines of MME ID, wherein, the current scheduling machine is UE switchings Front corresponding dispatcher, the current MME is corresponding MME before UE switchings；

Second transmitting element, for sending the second group service registration request to the current scheduling machine；

Second receiving unit, please according to second group service registration for receiving the current scheduling machine Ask the first of transmission to respond, determine the routing iinformation of the grappling dispatcher, include in first response The routing iinformation of the grappling dispatcher.

Further, current MME ID are included in the first group service registration request；

The acquisition module is specifically included：

3rd receiving unit, for receiving the address of the current scheduling machine of target MME transmission, wherein, The current scheduling machine is corresponding dispatcher before UE switchings, and target MME is the UE Corresponding MME after switching；

3rd transmitting element, for sending the second group service registration request to the current scheduling machine；

4th receiving unit, please according to second group service registration for receiving the current scheduling machine Ask the first of transmission to respond, determine the routing iinformation of the grappling dispatcher, include in first response The routing iinformation of the grappling dispatcher.

The present invention also provides a kind of device of group system switching, including：

First receiver module, for receiving the first cluster industry of target evolved packet-based core networks EPC transmissions Business registration request, wherein, target EPC is corresponding EPC after user equipment (UE) switching；

Determining module, for determining that target dispatch machine is grappling dispatcher, wherein, the grappling dispatcher For the Service control dispatcher of the UE；

Sending module, for sending session establishment request to target EPC；

Second receiver module, asks what is sent to cut for receiving target EPC according to the session establishment Change and complete response.

Further, described device also includes：

Release module, for discharging the session between the target dispatch machine and current scheduling machine, wherein, The current scheduling machine is corresponding dispatcher before UE switchings.

The present invention also provides a kind of device of group system switching, including：

First receiver module, for receiving the first group service registration request of target dispatch machine transmission, its In, the target dispatch machine is corresponding dispatcher after user equipment (UE) switching；

Sending module, for being sent to the target dispatch machine according to the first group service registration request Session establishment is asked；

Second receiver module, for receiving the switching that the target dispatch machine sends response is completed.

Further, described device also includes：

First release module, for discharging between grappling dispatcher and grappling Evolved Packet Core EPC Session, wherein, the grappling EPC is EPC corresponding with grappling dispatcher.

Further, described device also includes：

Second release module, for discharging the session between grappling dispatcher and current scheduling machine, wherein, The current scheduling machine is corresponding dispatcher before UE switchings.

The method and device of the group system switching that the present invention is provided, by target dispatch machine target is received The first group service registration request that EPC sends, target dispatch machine to grappling dispatcher sends the first cluster Service log-on is asked, and target dispatch machine receives grappling dispatcher and sent according to the first group service registration request Session establishment request, and session establishment request is sent to into target EPC, target dispatch machine receives target EPC asks the switching for sending to complete response according to session establishment, and switching is completed into response is sent to grappling Dispatcher, realizes UE and switches to after target dispatch machine and target EPC, and UE can be to target EPC In target MME send NAS signaling, target MME parses to NAS signaling, and again Grappling dispatcher is sent to by target dispatch machine after encapsulation, the UE after switching and grappling dispatcher is realized Between Signalling exchange.Because the control signaling between UE and target EPC is NAS signaling, its time delay It is low, requirement of the concentrated speech business to time delay can be met, improve Consumer's Experience.Meanwhile, realize collection Successful switch of the UE in group's system between different EPC.

Description of the drawings

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality Apply the accompanying drawing to be used needed for example or description of the prior art to be briefly described, it should be apparent that, under Accompanying drawing in the description of face is some embodiments of the present invention, for those of ordinary skill in the art, On the premise of not paying creative work, can be with according to these other accompanying drawings of accompanying drawings acquisition.

Fig. 1 is the schematic flow sheet of the embodiment of the method one of group system switching of the present invention；

Fig. 2 is a kind of Signalling exchange of implementation of the embodiment of the method one of group system switching of the present invention Schematic diagram；

Fig. 3 is the schematic flow sheet of the embodiment of the method two of group system switching of the present invention；

Fig. 4 is a kind of Signalling exchange of implementation of the embodiment of the method two of group system switching of the present invention Schematic diagram；

Fig. 5 is the schematic flow sheet of the embodiment of the method three of group system switching of the present invention；

Fig. 6 is a kind of Signalling exchange of implementation of the embodiment of the method three of group system switching of the present invention Schematic diagram；

Fig. 7 is the schematic flow sheet of the embodiment of the method four of group system switching of the present invention；

Fig. 8 is the structural representation of the device embodiment one of group system switching of the present invention；

Fig. 9 is the structural representation of the device embodiment two of group system switching of the present invention；

Figure 10 is the structural representation of the device embodiment three of group system switching of the present invention；

Figure 11 is the structural representation of the device embodiment four of group system switching of the present invention.

Specific embodiment

To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with this Accompanying drawing in bright embodiment, is clearly and completely described to the technical scheme in the embodiment of the present invention, Obviously, described embodiment is a part of embodiment of the invention, rather than the embodiment of whole.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained under the premise of creative work is not made The every other embodiment for obtaining, belongs to the scope of protection of the invention.

Fig. 1 is the schematic flow sheet of the embodiment of the method one of group system switching of the present invention.As shown in figure 1, The method of the group system switching that the present embodiment is provided includes：

S101：Target dispatch machine receives the first group service registration request that target EPC sends.

Wherein, target dispatch machine is corresponding dispatcher after UE switchings, and target EPC is after UE switchings Corresponding EPC.

Specifically, the executive agent of the method for the group system switching that the present embodiment is provided is target dispatch machine, Target dispatch machine is corresponding dispatcher after UE switchings, and target EPC is corresponding EPC after UE switchings, Target dispatch machine and target EPC are mutually corresponded to.Target EPC includes target mobile management entity (Mobility Management Entity；Referred to as：MME).Target EPC to target dispatch machine sends First group service registration request can be that target MME sends the first group service note to target dispatch machine Volume request, wherein, there are following two situations on the opportunity of target EPC the first group service registration request of transmission：

The first situation：When target eNB sends the wireless money of handover success preparation for UE to target EPC The message in source, i.e. target eNB to target EPC is sent after switching request response, and target EPC is to mesh Mark dispatcher sends the first group service registration request.Second situation：In UE successful switch to target ENB, target eNB sends the message of successful switch to target EPC, i.e., target eNB is to target EPC After sending switch acknowledgment message, target EPC to target dispatch machine sends the first group service registration request.

S102：Target dispatch machine to grappling dispatcher sends the first group service registration request.

Wherein, grappling dispatcher is the Service control dispatcher of UE.

Specifically, the first group service registration request is sent to grappling dispatcher by target dispatch machine.Cluster UE has a Service control dispatcher in business, and in the handoff procedure of UE, Service control dispatcher begins It is constant eventually.The Service control dispatcher is grappling dispatcher.

Optionally, before S102, also include：Target dispatch machine is according to the first group service registration request Obtain the routing iinformation of grappling dispatcher.Wherein, the routing iinformation of grappling dispatcher includes grappling dispatcher Address.

When the mobile station International Integrated Services digital network number comprising UE in the first group service registration request (Mobile Station ISDN number；Referred to as：When MSISDN), target dispatch machine is from ownership signing Client server (Home Subscriber Server；Referred to as：HSS the MSISDN of UE is obtained in) The routing iinformation of corresponding grappling dispatcher, the i.e. address of grappling dispatcher.

When in the first group service registration request include grappling MME identity number (Identity；Letter Claim：When ID), the corresponding relation of target dispatch machine inquiry MME ID and dispatcher obtains grappling MME The routing iinformation of the corresponding grappling dispatchers of ID, the i.e. address of grappling dispatcher.

When grappling MME ID are included in the first group service registration request, target dispatch machine receives target The routing iinformation of the grappling dispatcher that MME sends according to grappling MME ID, the i.e. ground of grappling dispatcher Location.Specifically, target MME can be corresponding with dispatcher according to grappling MME ID and MME ID Relation obtains the routing iinformation of grappling dispatcher, and the routing iinformation of grappling dispatcher is sent to into target tune Degree machine.

Optionally, switching mark can also be included in the first group service registration request, to indicate the registration Ask as switching registration.

S103：Target dispatch machine receives the meeting that grappling dispatcher sends according to the first group service registration request Words set up request, and session establishment request is sent to into target EPC.

Specifically, grappling dispatcher is received after the first group service registration request of target dispatch machine transmission, Session establishment request is sent to target dispatch machine according to the first group service registration request.Optionally, session Setting up in request can include switching mark and invalid Session Description Protocol (Session Description Protocol；Referred to as：SDP).The invalid SDP of carrying is because and need not be in target dispatch machine and anchor Determine to set up data path between dispatcher, it is only necessary to set up signaling channel.Target dispatch machine is built according to session Switching mark in vertical request is not parsed to the signaling forwarding between grappling dispatcher and target EPC SDP。

Target dispatch machine receives the session establishment that grappling dispatcher sends according to the first group service registration request Request, and session establishment request is sent to into target EPC.

Optionally, target dispatch machine receives what grappling dispatcher sent according to the first group service registration request Session establishment can also receive grappling dispatcher and be sent according to the first group service registration request while request Response message.

S104：Target dispatch machine receives target EPC asks the switching for sending to complete response according to session establishment, And switching is completed into response be sent to grappling dispatcher.

Specifically, target EPC is received after session establishment request, is sent according to meeting to target dispatch machine Words set up the switching of request transmission and complete response, and target dispatch machine receives target EPC please according to session establishment The switching for asking transmission completes response, and switching is completed into response is sent to grappling dispatcher.Optionally, cut Change and complete that in response invalid SDP can also be included.

So far, UE successful switch is to target EPC and target dispatch machine.UE passes through target EPC, target Dispatcher realizes Signalling exchange with grappling dispatcher.UE can be by target eNB in target EPC Target MME sends Non-Access Stratum (Non-Access Stratum；Referred to as：NAS) signaling, target MME is parsed to NAS signaling, and is sent to grappling scheduling by target dispatch machine after Resealing Machine, realizes the Signalling exchange between UE and grappling dispatcher after switching.Due to UE and target EPC Between control signaling be NAS signaling, its time delay is low, can meet requirement of the concentrated speech business to time delay, Improve Consumer's Experience.

Optionally, grappling dispatcher receive target dispatch machine transmission switching complete response after, release Session between grappling dispatcher and grappling EPC, wherein, grappling EPC is corresponding with grappling dispatcher EPC, specifically, grappling dispatcher can send a releasing request message, and such as BYE message is given Grappling EPC.

The method of the group system switching that the present embodiment is provided, can be used for from grappling dispatcher and grappling EPC is switched in the scene of target dispatch machine and target EPC.

The method of the group system switching that the present embodiment is provided, receives target EPC and sends out by target dispatch machine The the first group service registration request for sending, target dispatch machine to grappling dispatcher sends the first group service note Volume request, target dispatch machine receives the session that grappling dispatcher sends according to the first group service registration request Request is set up, and session establishment request is sent to into target EPC, target dispatch machine receives target EPC root Response is completed according to the switching of session establishment request transmission, and switching is completed into response to be sent to grappling dispatcher, Realize UE to switch to after target dispatch machine and target EPC, UE can be to the mesh in target EPC Mark MME sends NAS signaling, and target MME is parsed to NAS signaling, and after Resealing Grappling dispatcher is sent to by target dispatch machine, is realized between UE and grappling dispatcher after switching Signalling exchange.Because the control signaling between UE and target EPC is NAS signaling, its time delay is low, energy Meet requirement of the concentrated speech business to time delay, improve Consumer's Experience.Meanwhile, realize group system In successful switch of the UE between different EPC.

Fig. 2 is a kind of Signalling exchange of implementation of the embodiment of the method one of group system switching of the present invention Schematic diagram.As shown in Fig. 2 the signaling process of this implementation includes：

Step 1：Target EPC to target dispatch machine sends the first group service registration request.Wherein, One group service registration request includes switching mark.It should be noted that also including before step 1 Step 0：Target eNB to target EPC sends switching request response, or, target eNB is to target EPC sends switching and confirms.

Step 2：First group service registration request is sent to grappling dispatcher by target dispatch machine.

Step 3：Grappling dispatcher to the response that target dispatch machine sends the first group service registration request disappears Breath.

Step 4：Target dispatch machine sends the response message of the first group service registration request to target EPC.

Step 5：Grappling dispatcher to target dispatch machine sends session establishment request.Wherein, session establishment Request includes：Switching mark and invalid SDP.

It should be noted that step 3 and step 5 can be parallel steps.

Step 6：Session establishment request is sent to target EPC by target dispatch machine.

Step 7：Target EPC sends switching and completes response to target dispatch machine.Wherein, switching completes to ring Should always include：Invalid SDP.

Step 8：Switching is completed response and is sent to grappling dispatcher by target dispatch machine.

Step 9：Grappling dispatcher to grappling EPC sends BYE message, to discharge grappling dispatcher and anchor Determine the session between EPC.

Grappling EPC is received after BYE message, discharges UE contexts.

It is understood that target dispatch machine sends the first group service registration request in this implementation To can also include obtaining grappling dispatcher according to the first group service registration request before grappling dispatcher Routing iinformation.

This implementation realizes that philosophy and technique effect is similar with embodiment one, and here is omitted.

In the another embodiment that the present invention is provided, on the basis of embodiment one, before S102 Including：Target dispatch machine obtains the routing iinformation of grappling dispatcher according to the first group service registration request. Fig. 3 is the schematic flow sheet of the embodiment of the method two of group system switching of the present invention.Fig. 3 illustrate only and work as In first group service registration request during the MSISDN comprising UE, how target dispatch machine is according to first Group service registration request obtains the routing iinformation of grappling dispatcher, as shown in Figure 3：

S301：Target dispatch machine obtains the ground of the corresponding current scheduling machines of MSISDN of UE from HSS Location.

Wherein, current scheduling machine is corresponding dispatcher before UE switchings.

S302：Target dispatch machine to current scheduling machine sends the second group service registration request.

S303：Target dispatch machine receives that current scheduling machine sends according to the second group service registration request One response, determines the routing iinformation of grappling dispatcher, and the route comprising grappling dispatcher is believed in the first response Breath.

Further, when in the first group service registration request include current MME ID, target dispatch machine The routing iinformation of grappling dispatcher is obtained according to the first group service registration request, including：Target dispatch machine Inquiry MME ID and the corresponding relation of dispatcher, obtain the corresponding current scheduling machines of current MME ID Address, wherein, current scheduling machine is corresponding dispatcher before UE switchings, and current MME is UE switchings Front corresponding MME；Target dispatch machine to current scheduling machine sends the second group service registration request；Target Dispatcher receives current scheduling machine and responds according to the second group service registration request sends first, determines anchor Determine the routing iinformation of dispatcher, the routing iinformation comprising grappling dispatcher in the first response.

Further, when in the first group service registration request include current MME ID, target dispatch machine The routing iinformation of grappling dispatcher is obtained according to the first group service registration request, including：Target dispatch machine The address of the current scheduling machine that target MME sends is received, wherein, current scheduling machine is before UE switchings Corresponding dispatcher, target MME is corresponding MME after UE switchings；Target dispatch machine is to current tune Degree machine sends the second group service registration request；Target dispatch machine receives current scheduling machine according to the second cluster The first response that service log-on request sends, determines the routing iinformation of grappling dispatcher, wraps in the first response Routing iinformation containing grappling dispatcher.

Optionally, the second group service registration request includes switching mark.

The method of the group system switching that the present embodiment is provided can be used for from an active non-anchor dispatcher and an active non-anchor EPC is switched in the scene of another an active non-anchor dispatcher and an active non-anchor EPC.When target dispatch machine to When current scheduling machine sends the second group service registration request, if current scheduling machine now is not grappling Dispatcher, then current scheduling machine according to the second group service registration request to target dispatch machine send the first sound Should, target dispatch machine is according to first in response to determining that the routing iinformation of grappling dispatcher, includes in the first response The routing iinformation of grappling dispatcher, routing iinformation can be the address of grappling dispatcher.Target dispatch machine is obtained To after the routing iinformation of grappling dispatcher, to grappling dispatcher the first group service registration request, mesh are sent Mark dispatcher receives grappling dispatcher and is asked according to the session establishment that the first group service registration request sends, And session establishment request is sent to into target EPC.Target dispatch machine receives target EPC according to session establishment The switching that request sends completes response, and switching is completed into response is sent to grappling dispatcher.Grappling is dispatched Machine receives switching and completes after response, to discharge the session between grappling dispatcher and current scheduling machine.

The method of the group system switching that the present embodiment is provided, is obtained by target dispatch machine from HSS The address of the corresponding current scheduling machines of MSISDN of UE, target dispatch machine to current scheduling machine sends the Two group service registration requests, target dispatch machine receives current scheduling machine please according to the registration of the second group service Ask the first of transmission to respond, the routing iinformation of grappling dispatcher is determined, comprising grappling scheduling in the first response The routing iinformation of machine, so as to so that target dispatch machine can be known that grappling is dispatched through very short link The routing iinformation of machine, it is roundabout to reduce signalling route, further reduces time delay, improves Consumer's Experience.

Fig. 4 is a kind of Signalling exchange of implementation of the embodiment of the method two of group system switching of the present invention Schematic diagram.Fig. 4 illustrate only the process how target dispatch machine obtains the routing iinformation of grappling dispatcher, As shown in Figure 4：

Step 1：Target dispatch machine to current scheduling machine sends the second group service registration request.

Step 2：Current scheduling machine sends first and responds to target dispatch machine.Grappling is included in first response The routing iinformation of dispatcher.

Step 3：Target dispatch machine receives the first response that current scheduling machine sends, and determines grappling dispatcher Routing iinformation.

Step 4：Target dispatch machine to grappling dispatcher sends the first group service registration request.

Step 5：Grappling dispatcher to the response that target dispatch machine sends the first group service registration request disappears Breath.

Step 6：Grappling dispatcher to target dispatch machine sends session establishment request.

Step 7：Switching is completed response and is sent to grappling dispatcher by target dispatch machine.

Step 8：Grappling dispatcher to current scheduling machine send BYE message, with discharge grappling dispatcher with Session between current scheduling machine.

This implementation realizes that philosophy and technique effect is similar with embodiment two, and here is omitted.

Fig. 5 is the schematic flow sheet of the embodiment of the method three of group system switching of the present invention.As shown in figure 5, The method of the group system switching that the present embodiment is provided, including：

S501：Target dispatch machine receives the first group service registration request that target EPC sends.

Wherein, target dispatch machine is corresponding dispatcher after UE switchings, and target EPC is after UE switchings Corresponding EPC.

This step realizes that principle is similar with S101's, and here is omitted.

S502：Target dispatch machine determines that target dispatch machine is grappling dispatcher.

Wherein, grappling dispatcher is the Service control dispatcher of UE.

Specifically, target dispatch machine is determined from the grappling dispatcher as UE.Can be according to the first cluster The MSISDN of the UE in service log-on request is come whether determine target dispatch machine be the grappling scheduling of UE Machine.

S503：Target dispatch machine to target EPC sends session establishment request.

Target dispatch machine is grappling dispatcher, then target dispatch machine is that grappling EPC sends meeting to target EPC Words set up request.Optionally, switching mark and invalid SDP can be included in session establishment request.

Optionally, target dispatch machine is sending the collection of transmission first while session establishment is asked to target EPC The response message of group business registration request.

S504：Target dispatch machine receives target EPC asks the switching for sending to complete response according to session establishment.

Optionally, switching completes that in response invalid SDP can also be included.

Optionally, in the present embodiment, also include after S504：Target dispatch machine discharge target dispatch machine with Session between current scheduling machine, wherein, current scheduling machine is corresponding dispatcher before UE switchings.

The method of the group system switching that the present embodiment is provided can be used for from an active non-anchor dispatcher and non-EPC In switching back into the scene of grappling dispatcher and grappling EPC.When target dispatch machine is grappling dispatcher, its After receiving the first group service registration request of target EPC transmission, directly session is sent to target EPC Request is set up, and receives the switching of target EPC transmission and complete response.

The method of the group system switching that the present embodiment is provided, receives target EPC and sends out by target dispatch machine The the first group service registration request for sending, determines target dispatch machine for grappling dispatcher, target dispatch machine to Target EPC sends session establishment request, and target dispatch machine receives target EPC and sent out according to session establishment request The switching sent completes response, so as to when target dispatch machine is grappling dispatcher, directly to target EPC Session establishment request is sent, no longer the first group service registration request is sent to current scheduling machine, it is to avoid Signaling loop, improves the reliability of group service, further increases Consumer's Experience.

Fig. 6 is a kind of Signalling exchange of implementation of the embodiment of the method three of group system switching of the present invention Schematic diagram.As shown in fig. 6, the method that the group system that this implementation is provided switches includes：

Step 1：Target dispatch machine receives the first group service registration request that target EPC sends.

Step 2：Target dispatch machine determines that target dispatch machine is grappling dispatcher.

Step 3：Target dispatch machine sends the response message of the first group service registration request to target EPC.

Step 4：Target dispatch machine to target EPC sends session establishment request.

Step 5：Target EPC sends switching and completes response to target dispatch machine.

Step 6：Target dispatch machine to current scheduling machine sends BYE message.

Step 7：Current scheduling machine to current EPC sends BYE message.

Current EPC receives release UE contexts after BYE message.

This implementation realizes that philosophy and technique effect is similar with embodiment three, and here is omitted.

Fig. 7 is the schematic flow sheet of the embodiment of the method four of group system switching of the present invention.As shown in fig. 7, The method of the group system switching that the present embodiment is provided includes：

S701：Grappling dispatcher receives the first group service registration request that target dispatch machine sends.

Wherein, grappling dispatcher is the Service control dispatcher of UE, and target dispatch machine is right after UE switchings The dispatcher answered.

The content included in first group service registration request with it is identical in embodiment one, no longer go to live in the household of one's in-laws on getting married herein State.

S702：Grappling dispatcher sends session and builds according to the first group service registration request to target dispatch machine Vertical request.

Optionally, switching mark and invalid SDP can be included in session establishment request.

S703：Grappling dispatcher receives the switching of target dispatch machine transmission and completes response.

Optionally, switching completes that in response invalid SDP can also be included.

Further, target dispatch machine and target EPC are switched to from grappling dispatcher and grappling EPC in UE Scene in, also include after S703：Grappling dispatcher discharge grappling dispatcher and grappling EPC it Between session.Grappling EPC is EPC corresponding with grappling dispatcher.Optionally, grappling dispatcher sends Session of the BYE message to grappling EPC to discharge and between grappling EPC.

Further, UE from an active non-anchor dispatcher and an active non-anchor EPC switch to an active non-anchor dispatcher and In the scene of an active non-anchor EPC, also include after S703：Grappling dispatcher discharge grappling dispatcher with Session between current scheduling machine.Current scheduling machine is corresponding dispatcher before UE switchings.Optionally, Grappling dispatcher sends session of the BYE message to current scheduling machine to discharge and between current scheduling machine.

The method of the group system switching that the present embodiment is provided, by grappling dispatcher target dispatch machine is received The the first group service registration request for sending, grappling dispatcher is according to the first group service registration request to mesh Mark dispatcher sends session establishment request, and grappling dispatcher receives the switching of target dispatch machine transmission and completes to ring Should, realizing UE and switch to after target dispatch machine and target EPC, UE can be in target EPC Target MME send NAS signaling, target MME is parsed to NAS signaling, and is sealed again Grappling dispatcher is sent to by target dispatch machine after dress, realize UE and grappling dispatcher after switching it Between Signalling exchange.Because the control signaling between UE and target EPC is NAS signaling, its time delay is low, Requirement of the concentrated speech business to time delay can be met, Consumer's Experience is improve.Meanwhile, realize cluster system Successful switch of the UE in system between different EPC.

Fig. 8 is the structural representation of the device embodiment one of group system switching of the present invention.As shown in figure 8, The device of the group system switching that the present embodiment is provided, including：

First receiver module 801, for receiving the first group service registration request of target EPC transmission. Wherein, target EPC is corresponding EPC after UE switchings.

Sending module 802, for sending the first group service registration request to grappling dispatcher.Wherein, Grappling dispatcher is the Service control dispatcher of UE.

Second receiver module 803, sends out for receiving grappling dispatcher according to the first group service registration request The session establishment request sent, and session establishment request is sent to into target EPC.

3rd receiver module 804, asks the switching for sending complete for receiving target EPC according to session establishment Into response, and switching is completed into response it is sent to grappling dispatcher.

Optionally, the device that the present embodiment is provided also includes：Acquisition module, for according to the first cluster industry Business registration request obtains the routing iinformation of grappling dispatcher.

As the MSISDN comprising the UE in the first group service registration request, acquisition module is concrete For the routing iinformation for obtaining the corresponding grappling dispatchers of MSISDN from HSS.Routing iinformation can be Address.

When grappling MME ID are included in the first group service registration request, acquisition module is specifically for looking into The corresponding relation of MME ID and dispatcher is ask, the road of the corresponding grappling dispatchers of grappling MME ID is obtained By information.

When grappling MME ID are included in the first group service registration request, acquisition module is specifically for connecing Receive the routing iinformation of the grappling dispatcher that target MME sends according to grappling MME ID.

The device that the present embodiment is provided accordingly can be used to perform the technical side of embodiment of the method shown in Fig. 1 Case, it realizes that principle is similar to, and here is omitted.

The device of the group system switching that the present embodiment is provided, by arranging the first receiver module, for connecing Receive the first group service registration request that target EPC sends, sending module, for sending out to grappling dispatcher Send the first group service registration request, the second receiver module, for receiving grappling dispatcher according to the first collection The session establishment request that group business registration request sends, and session establishment request is sent to into target EPC, 3rd receiver module, asks the switching for sending to complete response for receiving target EPC according to session establishment, And switching is completed into response be sent to grappling dispatcher, realize UE and switch to target dispatch machine and target After EPC, UE can send NAS signaling, target MME to target MME in target EPC NAS signaling is parsed, and grappling dispatcher is sent to by target dispatch machine after Resealing, it is real The Signalling exchange between UE and grappling dispatcher after now switching.Due between UE and target EPC Control signaling is NAS signaling, and its time delay is low, can meet requirement of the concentrated speech business to time delay, is improved Consumer's Experience.Meanwhile, realize successful switch of the UE in group system between different EPC.

Fig. 9 is the structural representation of the device embodiment two of group system switching of the present invention.Fig. 9 is only illustrated Acquisition module 901 specific structure, as the MSISDN comprising UE in the first group service registration request When, as shown in figure 9, acquisition module 901 is concrete in the device of the group system switching of the present embodiment offer Including：

First acquisition unit 9011, for obtaining the corresponding current scheduling machines of MSISDN from HSS Address.Wherein, current scheduling machine is corresponding dispatcher before UE switchings.

First transmitting element 9012, for sending the second group service registration request to current scheduling machine；

First receiving unit 9013, sends out for receiving current scheduling machine according to the second group service registration request The first response sent, determines the routing iinformation of grappling dispatcher, and in the first response grappling dispatcher is included Routing iinformation.

When current MME ID are included in the first group service registration request, acquisition module is specifically included：

Second acquisition unit, for inquiring about the corresponding relation of MME ID and dispatcher, obtains current MME The address of the corresponding current scheduling machines of ID.Wherein, current scheduling machine is corresponding dispatcher before UE switchings, Current MME is corresponding MME before UE switchings.

Second transmitting element, for sending the second group service registration request to current scheduling machine.

Second receiving unit, for receiving what current scheduling machine sent according to the second group service registration request First response, determines the routing iinformation of grappling dispatcher, the route comprising grappling dispatcher in the first response Information.

When current MME ID are included in the first group service registration request, acquisition module is specifically included：

3rd receiving unit, for receiving the address of the current scheduling machine of target MME transmission.Wherein, Current scheduling machine is corresponding dispatcher before UE switchings, and target MME is corresponding after UE switchings MME。

3rd transmitting element, for sending the second group service registration request to current scheduling machine.

4th receiving unit, for receiving what current scheduling machine sent according to the second group service registration request First response, determines the routing iinformation of grappling dispatcher, the route comprising grappling dispatcher in the first response Information.

The device that the present embodiment is provided accordingly can be used to perform the technical side of embodiment of the method shown in Fig. 3 Case, it realizes that principle is similar to, and here is omitted.

The present embodiment provide group system switching device, by arrange first acquisition unit, for from The address of the corresponding current scheduling machines of MSISDN of UE is obtained in HSS, the first transmitting element is used for The second group service registration request, the first receiving unit, for receiving current tune are sent to current scheduling machine Degree machine is responded according to the second group service registration request sends first, determines the route letter of grappling dispatcher Breath, the routing iinformation comprising grappling dispatcher in the first response, so as to so that target dispatch machine can be with Jing The routing iinformation that very short link is known that grappling dispatcher is crossed, it is roundabout to reduce signalling route, further Time delay is reduced, Consumer's Experience is improve.

Figure 10 is the structural representation of the device embodiment three of group system switching of the present invention.Such as Figure 10 institutes Show, the device that the present embodiment is provided includes：

First receiver module 1001, for receiving the first group service registration request of target EPC transmission. Wherein, target EPC is corresponding EPC after UE switchings；

Determining module 1002, for determining that target dispatch machine is grappling dispatcher.Wherein, grappling dispatcher For the Service control dispatcher of UE；

Sending module 1003, for sending session establishment request to target EPC.

Second receiver module 1004, asks the switching for sending complete for receiving target EPC according to session establishment Into response.

Optionally, the device that the present embodiment is provided also includes：Release module, for discharging target dispatch machine With the session between current scheduling machine.Wherein, current scheduling machine is corresponding scheduling before UE switchings Machine.

The device that the present embodiment is provided accordingly can be used to perform the technical side of embodiment of the method shown in Fig. 5 Case, it realizes that principle is similar to, and here is omitted.

The device of the group system switching that the present embodiment is provided, by arranging the first receiver module, for connecing Receive the first group service registration request that target EPC sends, determining module, for determining target dispatch machine For grappling dispatcher, sending module, for sending session establishment request to target EPC, second receives mould Block, asks the switching for sending to complete response, so as in mesh for receiving target EPC according to session establishment When mark dispatcher is grappling dispatcher, directly session establishment request is sent to target EPC, no longer to current Dispatcher sends the first group service registration request, it is to avoid signaling loop, and improve group service can By property, Consumer's Experience is further increased.

Figure 11 is the structural representation of the device embodiment four of group system switching of the present invention.Such as Figure 11 institutes Show, the device that the present embodiment is provided includes：

First receiver module 1101, for receiving the first group service registration request of target dispatch machine transmission. Wherein, target dispatch machine is corresponding dispatcher after UE switchings.

Sending module 1102, for sending session to target dispatch machine according to the first group service registration request Set up request.

Second receiver module 1103, the switching for receiving the transmission of target dispatch machine completes response.

Optionally, the device that the present embodiment is provided also includes：

First release module, for discharging between grappling dispatcher and grappling Evolved Packet Core EPC Session.Wherein, grappling EPC is EPC corresponding with grappling dispatcher.

Optionally, the device that the present embodiment is provided also includes：

Second release module, for discharging the session between grappling dispatcher and current scheduling machine.Wherein, Current scheduling machine is corresponding dispatcher before UE switchings.

The device that the present embodiment is provided accordingly can be used to perform the technical side of embodiment of the method shown in Fig. 7 Case, it realizes that principle is similar to, and here is omitted.

The device of the group system switching that the present embodiment is provided, by arranging the first receiver module, for connecing Receive the first group service registration request that target dispatch machine sends, sending module, for according to the first cluster Service log-on asks to send session establishment request, the second receiver module, for receiving mesh to target dispatch machine The switching that mark dispatcher sends completes response, realize UE switch to target dispatch machine and target EPC it Afterwards, UE can send NAS signaling to target MME in target EPC, and target MME is to NAS Signaling is parsed, and is sent to grappling dispatcher by target dispatch machine after Resealing, and realizes switching Signalling exchange between rear UE and grappling dispatcher.Because the control between UE and target EPC is believed Order is NAS signaling, and its time delay is low, can meet requirement of the concentrated speech business to time delay, improves user Experience.Meanwhile, realize successful switch of the UE in group system between different EPC.

One of ordinary skill in the art will appreciate that：Realize all or part of step of above-mentioned each method embodiment Suddenly can be completed by the related hardware of programmed instruction.Aforesaid program can be stored in a computer can In reading storage medium.The program upon execution, performs the step of including above-mentioned each method embodiment；And Aforesaid storage medium includes：ROM, RAM, magnetic disc or CD etc. are various can be with store program codes Medium.

Finally it should be noted that：Various embodiments above is only illustrating technical scheme rather than right Its restriction；Although being described in detail to the present invention with reference to foregoing embodiments, this area it is common Technical staff should be understood：It still can modify to the technical scheme described in foregoing embodiments, Either equivalent is carried out to which part or all technical characteristic；And these modifications or replacement, and The scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution is not made.

Claims (26)

1. a kind of method that group system switches, it is characterised in that include：

Target dispatch machine receives the first group service registration of target evolved packet-based core networks EPC transmissions please Ask, wherein, the target dispatch machine is corresponding dispatcher after user equipment (UE) switching, the target EPC is corresponding EPC after UE switchings；

The target dispatch machine to grappling dispatcher sends the first group service registration request, wherein, The grappling dispatcher is the Service control dispatcher of the UE；

The target dispatch machine receives the grappling dispatcher and is sent out according to the first group service registration request The session establishment request sent, and session establishment request is sent to into target EPC；

The target dispatch machine receives target EPC asks the switching for sending complete according to the session establishment Into response, and the switching is completed response and is sent to the grappling dispatcher.

2. method according to claim 1, it is characterised in that the target dispatch machine to grappling is adjusted Degree machine is sent before the first group service registration request, is also included：

The target dispatch machine obtains the grappling dispatcher according to the first group service registration request Routing iinformation.

3. method according to claim 2, it is characterised in that the first group service registration please Mobile station International Integrated Services digital network number MSISDN comprising the UE in asking；

The target dispatch machine obtains the grappling dispatcher according to the first group service registration request Routing iinformation, including：

It is corresponding that the target dispatch machine obtains the MSISDN from home signature user server HSS The routing iinformation of the grappling dispatcher.

4. method according to claim 2, it is characterised in that the first group service registration please Anchored mobility management entity MME identity number ID are included in asking；

The target dispatch machine obtains the grappling dispatcher according to the first group service registration request Routing iinformation, including：

The target dispatch machine inquiry MME ID and the corresponding relation of dispatcher, obtain the grappling MME The routing iinformation of the corresponding grappling dispatchers of ID.

5. method according to claim 2, it is characterised in that the first group service registration please Grappling MME ID are included in asking；

The target dispatch machine obtains the grappling dispatcher according to the first group service registration request Routing iinformation, including：

The target dispatch machine receives the grappling that target MME sends according to the grappling MME ID The routing iinformation of dispatcher.

6. method according to claim 2, it is characterised in that the first group service registration please MSISDN comprising the UE in asking；

The target dispatch machine obtains the grappling dispatcher according to the first group service registration request Routing iinformation, including：

The target dispatch machine obtains the address of the corresponding current scheduling machines of the MSISDN from HSS, Wherein, the current scheduling machine is corresponding dispatcher before UE switchings；

The target dispatch machine to the current scheduling machine sends the second group service registration request；

The target dispatch machine receives the current scheduling machine and is sent out according to the second group service registration request The first response sent, determines the routing iinformation of the grappling dispatcher, comprising described in first response The routing iinformation of grappling dispatcher.

7. method according to claim 2, it is characterised in that the first group service registration please Current MME ID are included in asking；

The target dispatch machine obtains the grappling dispatcher according to the first group service registration request Routing iinformation, including：

The target dispatch machine inquiry MME ID and the corresponding relation of dispatcher, obtain the current MME The address of the corresponding current scheduling machines of ID, wherein, the current scheduling machine is correspondence before UE switchings Dispatcher, the current MME be the UE switching before corresponding MME；

The target dispatch machine to the current scheduling machine sends the second group service registration request；

The target dispatch machine receives the current scheduling machine and is sent out according to the second group service registration request The first response sent, determines the routing iinformation of the grappling dispatcher, comprising described in first response The routing iinformation of grappling dispatcher.

8. method according to claim 2, it is characterised in that the first group service registration please Current MME ID are included in asking；

The target dispatch machine obtains the grappling dispatcher according to the first group service registration request Routing iinformation, including：

The target dispatch machine receives the address of the current scheduling machine that target MME sends, wherein, it is described Current scheduling machine is corresponding dispatcher before UE switchings, and target MME is UE switchings Corresponding MME afterwards；

The target dispatch machine to the current scheduling machine sends the second group service registration request；

The target dispatch machine receives the current scheduling machine and is sent out according to the second group service registration request The first response sent, determines the routing iinformation of the grappling dispatcher, comprising described in first response The routing iinformation of grappling dispatcher.

9. a kind of method that group system switches, it is characterised in that include：

Target dispatch machine receives the first group service registration of target evolved packet-based core networks EPC transmissions please Ask, wherein, the target dispatch machine is corresponding dispatcher after user equipment (UE) switching, the target EPC is corresponding EPC after UE switchings；

The target dispatch machine determines that the target dispatch machine is grappling dispatcher, wherein, the grappling is adjusted Degree machine is the Service control dispatcher of the UE；

The target dispatch machine to target EPC sends session establishment request；

The target dispatch machine receives target EPC asks the switching for sending complete according to the session establishment Into response.

10. method according to claim 9, it is characterised in that also include：

The target dispatch machine discharges the session between the target dispatch machine and current scheduling machine, wherein, The current scheduling machine is corresponding dispatcher before UE switchings.

A kind of 11. methods of group system switching, it is characterised in that include：

Grappling dispatcher receives the first group service registration request that target dispatch machine sends, wherein, it is described Grappling dispatcher is the Service control dispatcher of user equipment (UE), and the target dispatch machine is the UE Corresponding dispatcher after switching；

The grappling dispatcher sends according to the first group service registration request to the target dispatch machine Session establishment is asked；

The grappling dispatcher receives the switching of the target dispatch machine transmission and completes response.

12. methods according to claim 11, it is characterised in that the grappling dispatcher receives institute The switching for stating the transmission of target dispatch machine completes after response, also to include：

The grappling dispatcher is discharged between the grappling dispatcher and grappling Evolved Packet Core EPC Session, wherein, the grappling EPC is EPC corresponding with the grappling dispatcher.

13. methods according to claim 11, it is characterised in that the grappling dispatcher receives institute The switching for stating the transmission of target dispatch machine completes after response, also to include：

The grappling dispatcher discharges the session between the grappling dispatcher and current scheduling machine, wherein, The current scheduling machine is corresponding dispatcher before UE switchings.

14. a kind of devices of group system switching, it is characterised in that include：

First receiver module, for receiving the first cluster industry of target evolved packet-based core networks EPC transmissions Business registration request, wherein, target EPC is corresponding EPC after user equipment (UE) switching；

Sending module, for sending the first group service registration request to grappling dispatcher, wherein, The grappling dispatcher is the Service control dispatcher of the UE；

Second receiver module, please according to first group service registration for receiving the grappling dispatcher The session establishment for asking transmission is asked, and session establishment request is sent to into target EPC；

3rd receiver module, asks what is sent to cut for receiving target EPC according to the session establishment Change and complete response, and the switching is completed into response and be sent to the grappling dispatcher.

15. devices according to claim 14, it is characterised in that described device, also include：

Acquisition module, for obtaining the grappling dispatcher according to the first group service registration request Routing iinformation.

16. devices according to claim 15, it is characterised in that the first group service registration Mobile station International Integrated Services digital network number MSISDN comprising the UE in request；

The acquisition module from home signature user server HSS specifically for obtaining the MSISDN The routing iinformation of the corresponding grappling dispatcher.

17. devices according to claim 15, it is characterised in that the first group service registration Anchored mobility management entity MME identity number ID are included in request；

The acquisition module obtains the anchor specifically for inquiry MME ID and the corresponding relation of dispatcher Determine the routing iinformation of the corresponding grappling dispatchers of MME ID.

18. devices according to claim 15, it is characterised in that the first group service registration Grappling MME ID are included in request；

The acquisition module is specifically for receiving the institute that target MME sends according to the grappling MME ID State the routing iinformation of grappling dispatcher.

19. devices according to claim 15, it is characterised in that the first group service registration MSISDN comprising the UE in request；

The acquisition module is specifically included：

First acquisition unit, for obtaining the ground of the corresponding current scheduling machines of the MSISDN from HSS Location, wherein, the current scheduling machine is corresponding dispatcher before UE switchings；

First transmitting element, for sending the second group service registration request to the current scheduling machine；

First receiving unit, please according to second group service registration for receiving the current scheduling machine Ask the first of transmission to respond, determine the routing iinformation of the grappling dispatcher, include in first response The routing iinformation of the grappling dispatcher.

20. devices according to claim 15, it is characterised in that the first group service registration Current MME ID are included in request；

The acquisition module is specifically included：

Second acquisition unit, for inquiring about the corresponding relation of MME ID and dispatcher, obtains described current The address of the corresponding current scheduling machines of MME ID, wherein, the current scheduling machine is UE switchings Front corresponding dispatcher, the current MME is corresponding MME before UE switchings；

Second transmitting element, for sending the second group service registration request to the current scheduling machine；

Second receiving unit, please according to second group service registration for receiving the current scheduling machine Ask the first of transmission to respond, determine the routing iinformation of the grappling dispatcher, include in first response The routing iinformation of the grappling dispatcher.

21. devices according to claim 15, it is characterised in that the first group service registration Current MME ID are included in request；

The acquisition module is specifically included：

3rd receiving unit, for receiving the address of the current scheduling machine of target MME transmission, wherein, The current scheduling machine is corresponding dispatcher before UE switchings, and target MME is the UE Corresponding MME after switching；

3rd transmitting element, for sending the second group service registration request to the current scheduling machine；

4th receiving unit, please according to second group service registration for receiving the current scheduling machine Ask the first of transmission to respond, determine the routing iinformation of the grappling dispatcher, include in first response The routing iinformation of the grappling dispatcher.

22. a kind of devices of group system switching, it is characterised in that include：

First receiver module, for receiving the first cluster industry of target evolved packet-based core networks EPC transmissions Business registration request, wherein, target EPC is corresponding EPC after user equipment (UE) switching；

Determining module, for determining that target dispatch machine is grappling dispatcher, wherein, the grappling dispatcher For the Service control dispatcher of the UE；

Sending module, for sending session establishment request to target EPC；

Second receiver module, asks what is sent to cut for receiving target EPC according to the session establishment Change and complete response.

23. devices according to claim 22, it is characterised in that also include：

Release module, for discharging the session between the target dispatch machine and current scheduling machine, wherein, The current scheduling machine is corresponding dispatcher before UE switchings.

24. a kind of devices of group system switching, it is characterised in that include：

First receiver module, for receiving the first group service registration request of target dispatch machine transmission, its In, the target dispatch machine is corresponding dispatcher after user equipment (UE) switching；

Sending module, for being sent to the target dispatch machine according to the first group service registration request Session establishment is asked；

Second receiver module, for receiving the switching that the target dispatch machine sends response is completed.

25. devices according to claim 24, it is characterised in that also include：

First release module, for discharging between grappling dispatcher and grappling Evolved Packet Core EPC Session, wherein, the grappling EPC is EPC corresponding with grappling dispatcher.

26. devices according to claim 24, it is characterised in that also include：

Second release module, for discharging the session between grappling dispatcher and current scheduling machine, wherein, The current scheduling machine is corresponding dispatcher before UE switchings.