CN102821429B - Switching handling method, the network equipment and network system - Google Patents
Switching handling method, the network equipment and network system Download PDFInfo
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Abstract
Embodiments provide switching handling method, the network equipment and network system.Wherein, described method comprises: in the handoff procedure of terminating circuit CS territory, and it is the services package switching network support node SGSN address that described terminal is preserved that source base station controller BSC/ radio network controller (RNC) obtains in self; Described SGSN address is sent to moving exchanging center MSC by source BSC/RNC in the handoff procedure of described CS territory.The switching handling method of the embodiment of the present invention, equipment and network system, by in the handoff procedure of CS territory, SGSN address is sent to MSC by source BSC/RNC, MSC can directly obtain SGSN address, or the SGSN address from source BSC/RNC can be sent to target BS C/RNC further, thus improve the success rate of the SGSN address of MSC acquisition UE in follow-up rSRVCC handoff procedure, also namely improve and realize the success rate that access transfer prepares flow process.
Description
Technical field
The embodiment of the present invention relates to communication technical field, particularly relates to switching handling method, the network equipment and network system.
Background technology
Generation Mobile Telecommunication System technology (2ndGeneration, 2G) or G mobile communication (3rdGeneration is called for short 3G) network, formed a kind of situation of comprehensive covering through deployment for many years.And meanwhile, along with the development of network technology, some only provide packet switching (PacketSwitch, be called for short PS) pure PS territory network, such as Long Term Evolution (LongTermEvolution, be called for short LTE) network etc., at the networking initial stage, also cover some cities and traffic hot spot area gradually.Thus, in current communication network, these pure PS territory networks and 2G/3G network are in and the state of depositing.
Corresponding to different communication networks, speech business has different carrying mechanisms.Particularly, in 2G/3G network, audio call supports the session service that circuit domain (CircuitService is called for short CS) carries; And in the network of PS territory, audio call supports packet switching (PacketSwitched, be called for short PS) territory carrying session service, also referred to as internet protocal carried voice technology (VoiceoverInternetProtocol, be called for short VOIP) class business, quality of service is provided to ensure by IP Multimedia System (IPMultimediaSubsystem is called for short IMS).
Relative to CS territory network; PS territory network can provide higher rate, higher-quality voice traffic services for user; the more data traffic requirement of user can be met; thus in order to cultivate the voice user of more PS territory network; operator can arrange the priority level in PS territory usually higher than CS territory, and voice user is preferentially quartered in the network of PS territory.Thus at CS territory network and PS territory network and under the situation of depositing, as subscriber equipment (UserEquipment, be called for short UE) first in the CS territory of 2G or 3G network (hereinafter referred to as G/U), initiate audio call, and when moving to region that PS territory network covers simultaneously, based on the demand to higher speech service quality, or consider the restriction of high priority, UE needs audio call to be transformed into the PS territory of LTE/HSPA network from CS territory, namely reverse single wireless voice calling continuity (ReverseSingleRadioVoiceCallContinuity is carried out, be called for short rSRVCC) switching flow.
In rSRVCC switching flow, by base station controller or radio network controller (BasicStationControllerorRadioNetworkController, BSC/RNC) initiate to switch, trigger access transfer and prepare (accesstransferpreparation) flow process.This flow process specifically comprises BSC/RNC to mobile switching centre (MobilitySwitchCenter, MSC) handover request is sent, and in this handover request, carry services package switching network support node (ServingGPRSSupportNode, SGSN) address, MSC sends CS territory to the handover request in PS territory according to this address to the SGSN of correspondence, and send transmission preparation request message to ATCF, ATCF triggers and sets up voice bearer in the PS territory of G/U, then SGSN initiates handoff procedure again, and the PS territory voice bearer just set up is switched in LTE network.
Prepare in flow process in above-mentioned access transfer, MSC needs the address obtaining SGSN from BSC/RNC.SGSN address in BSC/RNC is when UE enters connected state in PS territory before the handover, such as carries out PS business or sends wireless zone when upgrading (routingareaupdate, RAU) message, know and preserve.
But, if prepared before flow process in access transfer, switch between the BSC/RNC that UE there occurs CS territory, and UE is connected in the process of above-mentioned target BS C/RNC, do not carry out the operation entering connected state in PS territory, then above-mentioned target BS C/RNC does not have the SGSN address of above-mentioned UE.Prepare in flow process in follow-up access transfer, because above-mentioned target BS C/RNC does not have the SGSN address of UE, just cannot carry SGSN address in rSRVCC handover request message, thus MSC cannot know the SGSN address of UE, causing follow-up access transfer to prepare flow process cannot realize.
Summary of the invention
Provide a kind of switching handling method, a kind of network equipment, a kind of mobile switching centre and a kind of network system, after improving the switching of CS territory, MSC obtains the success rate of the SGSN address of UE.
A kind of switching handling method provided comprises:
In the handoff procedure of terminating circuit CS territory, it is the services package switching network support node SGSN address that described terminal is preserved that source base station controller BSC/ radio network controller (RNC) obtains in self;
Described SGSN address is sent to moving exchanging center MSC by source BSC/RNC in the handoff procedure of described CS territory.
A kind of network equipment provided, be base station controller or radio network controller, this network equipment comprises:
First processing module, for obtaining self as source BSC/RNC in the handoff procedure of first terminal CS territory, is the SGSN address that described first terminal is preserved;
Transceiver module, for sending to MSC by the SGSN address described processing module obtained in the handoff procedure of described first terminal CS territory.
A kind of mobile switching centre provided, comprising:
Transceiver module, in terminal CS handoff procedure, receives the SGSN address from source BSC/RNC, and in described terminal rSRVCC handoff procedure, sends the handover request of CS territory to PS territory according to the SGSN address that processing module provides to SGSN;
Processing module, for preserving the SGSN address that described transceiver module receives, and in described terminal rSRVCC handoff procedure, is supplied to transceiver module by the SGSN address that self preserves.
A kind of network system provided, comprising:
Source BSC/RNC, in the handoff procedure of terminal CS territory, obtaining in self is the SGSN address that described terminal is preserved, and this SGSN address is sent to MSC;
MSC, for receiving and preserving described SGSN address, or after receiving described SGSN address, is sent and is transmitted to target BS C/RNC.
The switching handling method of the embodiment of the present invention, equipment and network system, by in the handoff procedure of CS territory, SGSN address is sent to MSC by source BSC/RNC, MSC can directly obtain SGSN address, or the SGSN address from source BSC/RNC can be sent to target BS C/RNC further, thus improve the success rate of the SGSN address of MSC acquisition UE in follow-up rSRVCC handoff procedure, also namely improve and realize the success rate that access transfer prepares flow process.
Accompanying drawing explanation
Fig. 1 is the flow chart of embodiment of the present invention switching handling method embodiment one;
Fig. 2 is the flow chart of embodiment of the present invention switching handling method embodiment two;
Fig. 3 is the flow chart of embodiment of the present invention switching handling method embodiment three;
Fig. 4 is the flow chart of embodiment of the present invention switching handling method embodiment four;
Fig. 5 is a kind of structural representation of network equipment embodiment of the present invention;
Fig. 6 is the another kind of structural representation of network equipment embodiment of the present invention;
Fig. 7 is the third structural representation of network equipment embodiment of the present invention;
Fig. 8 is a kind of structural representation of mobile switching centre of the present invention embodiment;
Fig. 9 is the another kind of structural representation of mobile switching centre of the present invention embodiment;
Figure 10 is the structural representation of network system embodiment of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Switching handling method embodiment 1:
Fig. 1 is the flow chart of embodiment of the present invention switching handling method embodiment one in BSC/RNC side, source.As shown in Figure 1, this method comprises the steps: in BSC/RNC side, source
In step 101, terminal CS territory handoff procedure, it is the SGSN address that described terminal is preserved that source BSC/RNC obtains in self.
CS territory handoff procedure in this step, refers to and carries out handoff procedure in the inside in CS territory, as carry out CS territory BSC/RNC between switch.
This step can perform before source BSC/RNC sends handover request to MSC, and can determine that the target BS C/RNC that described CS territory switches and source BSC/RNC is in same Route Area (RouteArea at described source BSC/RNC, RA) time, the step of the acquisition SGSN address described in just performing.If described source BSC/RNC determines that the target BS C/RNC that described CS territory switches and source BSC/RNC is not in same RA, then source BSC/RNC processes across RA switching flow according to existing.After switching across RA, UE can initiate the connection that RAU process is established to SGSN, and this is connected through target BS C/RNC, and so target BS C/RNC just can obtain SGSN address, and preserves SGSN address.
In addition, in this step, source BSC/RNC first can also judge the SGSN address whether storing described terminal in self, if so, just performs the above-mentioned step whether target BS C/RNC and source BSC/RNC is in same RA of determining; Otherwise, directly send the handover request not comprising SGSN address by prior art to MSC, and do not perform above-mentioned each determining step; After follow-up MSC receives this handover request, by prior art, this handover request is transmitted to target BS C/RNC.
Described SGSN address is sent to MSC by step 102, source BSC/RNC in the handoff procedure of described CS territory.Here, source BSC/RNC can carry described SGSN address by handover request.
In step 102, after described MSC receives described SGSN address, described SGSN address can be preserved.After then described MSC preserves described SGSN address, can comprise further:
In described terminal rSRVCC handoff procedure, described MSC from self reading described SGSN address, and sends the handover request of CS territory to PS territory according to this SGSN address to SGSN.
In described terminal rSRVCC handoff procedure, described MSC takes a step forward can comprise from self reading described SGSN address:
Described MSC receives the handover request being used for rSRVCC from BSC/RNC;
Described MSC judges whether comprise SGSN address in the described handover request received, and if so, then sends the handover request of CS territory to PS territory according to the SGSN address in this handover request to SGSN; Otherwise, described in execution from the step self reading described SGSN address.
After described MSC receives described SGSN address, SGSN address can not be preserved in self, but described SGSN address is transmitted to target BS C/RNC.Such as, source RNC/BSC can carry SGSN address by sending to the transparent transmission container (transparentcontainer) in the handover request of MSC, then the transparentcontainer carrying SGSN address is directly passed through target BS C/RNC by handover request by MSC.Described target BS C/RNC, receiving the SGSN address from MSC, after above-mentioned handover request, preserves SGSN address.
Described target BS C/RNC can comprise after preserving described SGSN address further:
In described terminal rSRVCC handoff procedure, in the handover request that described target BS C/RNC sends to MSC, carry the described SGSN address of self preserving;
The MSC receiving handover request sends the handover request of CS territory to PS territory according to described SGSN address to SGSN.
In the present embodiment, by in the handoff procedure of CS territory, SGSN address is sent to MSC by source BSC/RNC, MSC is made directly to obtain SGSN address, thus improve the success rate of the SGSN address of MSC acquisition UE in follow-up rSRVCC handoff procedure, also namely improve and realize the success rate that access transfer prepares flow process; Or by MSC, the SGSN address from source BSC/RNC is sent to target BS C/RNC further, thus target BS C/RNC can prepare to send it to MSC in flow process in the access transfer of follow-up rSRVCC, thus improve the success rate of the SGSN address of MSC acquisition UE in follow-up rSRVCC handoff procedure, also namely improve and realize the success rate that access transfer prepares flow process.
Further, source BSC/RNC is determining target BS C/RNC and self is being in same RA, thus when the SGSN address of switching terminal can not change, just SGSN address is supplied to MSC or is transferred to target BS C/RNC by MSC, decrease unnecessary information transmission, save network traffics.
Switching handling method embodiment 2:
Fig. 2 is the flow chart of embodiment of the present invention switching handling method embodiment two, and as shown in Figure 2, this method comprises the steps:
In step 201, terminal CS territory handoff procedure, MSC receives the SGSN address from source BSC/RNC, and preserves this SGSN address.In this step, SGSN address can be carried in handover request.
In step 202, described terminal rSRVCC handoff procedure, described MSC reads the described SGSN address that self preserves, and sends the handover request of CS territory to PS territory according to this address to SGSN.
Described MSC reads the described SGSN address of self preserving and takes a step forward and can comprise:
Described MSC receives the handover request being used for rSRVCC from BSC/RNC;
Described MSC judges whether comprise SGSN address in the described handover request received, and if so, then sends the handover request of CS territory to PS territory according to the SGSN address in this handover request to SGSN; Otherwise, described in execution from the step self reading described SGSN address.
In the present embodiment, by in the handoff procedure of CS territory, MSC receives the SGSN address from source BSC/RNC, and preserves this SGSN address, in follow-up rSRVCC handoff procedure, MSC sends the handover request of CS territory to PS territory according to this SGSN address, thus achieves access transfer preparation flow process.
Switching handling method embodiment 3:
In the present embodiment, in terminal CS handoff procedure, SGSN address is sent to MSC by source BSC/RNC, and MSC preserves during this address switches for follow-up rSRVCC and accesses the realization that transfer prepares flow process.
As shown in Figure 3, the switching handling method in the present embodiment comprises the steps:
Step 301, terminal send measurement report to source BSC/RNC.
Step 302, source BSC/RNC send handover request to MSC.
Relate to the scheme that handover request triggers in step 301 and step 302 same as the prior art, owing to having a detailed description in each relevant criterion agreement, repeat no more here.
But in step 302, when BSC/RNC finds that current switching is that common CS territory switches (namely non-interMSC switches), and RA does not change, be then read as the SGSN address that described terminal is preserved, and in handover request, carry SGSN address to MSC.In this step, RNC/BSC according to the neighbor list configured in self, can determine that whether the RA of switching target small area is consistent with the RA of current area, also namely determines whether target BS C/RNC is in same RA with source BSC/RNC.
In addition, first BSC/RNC can determine whether save SGSN address in self, if so, just performs and determines that whether current switching is that common CS switches and the step that whether do not change of RA; Otherwise, directly do not carry the handover request of SGSN address to MSC by existing procedure transmission.
After step 303, MSC receive handover request, read SGSN address wherein, and preserve, then send handover request by prior art to target BS C/RNC.
After MSC preserves SGSN address, if follow-up described terminal occurs in rSRVCC switching, after MSC receives the handover request from BSC/RNC, judge whether carry SGSN address in this handover request, if so, then the direct SGSN address according to carrying in this handover request sends the handover request of CS territory to PS territory to SGSN; Otherwise MSC reads in self the SGSN address of the preservation being described terminal in CS handoff procedure, and send the handover request of CS territory to PS territory according to the SGSN address of this reading to SGSN.
Step 304 follow-up in Fig. 3 is to 306, the process of the mutual switching request response of target BS C/RNC and MSC, UE and switching command is same as the prior art, specific implementation, with reference to the relevant programme in current published various scheme or standard agreement, repeats no more here.
In the present embodiment, by in the handoff procedure of CS territory, MSC receives the SGSN address from source BSC/RNC, and preserve this SGSN address, in follow-up rSRVCC handoff procedure, MSC sends the handover request of CS territory to PS territory according to this SGSN address, thus the access transfer that can realize in rSRVCC handoff procedure prepares flow process.
Switching handling method embodiment 4:
Be illustrated in figure 4 the flow chart of the present embodiment, in the flow process of the present embodiment, signaling process is substantially the same manner as Example 3, difference is only, in step 402, source BSC/RNC carries the SGSN address of preserving in self by the transparentcontainer in handover request, then MSC in step 403, can by handover request transparent transmission transparentcontainer to target BS C/RNC, after target BS C/RNC receives the handover request from MSC, from transparentcontainer, obtain SGSN address also for described terminal is preserved.
Then when follow-up described terminal there occurs rSRVCC switching, the SGSN address of preserving for described terminal in self can be reported MSC by handover request by above-mentioned target BS C/RNC, thus improve the success rate of the SGSN address of MSC acquisition UE in follow-up rSRVCC handoff procedure, also namely improve and realize the success rate that access transfer prepares flow process.
In the present embodiment, if after the CS territory shown in Fig. 4 has switched, UE has initiated location area updating flow process in the above-mentioned target BS C/RNC process of access, then above-mentioned target BS C/RNC can adopt the SGSN address obtained in location area updating flow process to cover the SGSN address obtained by the flow process of Fig. 4, thus guarantee in rSRVCC flow process, SGSN address up-to-date for UE can be reported MSC by BSC/RNC.
One of ordinary skill in the art will appreciate that, the all or part of step realized in said method execution mode is that the hardware that can carry out instruction relevant by program has come, described program can be stored in computer read/write memory medium, this program, when performing, can comprise the aforementioned content that the present invention is based on each execution mode of communication means of MIP technology.Here the alleged storage medium obtained, as: ROM/RAM, magnetic disc, CD etc.
Network equipment embodiment:
The network equipment that the present embodiment provides can be BSC or RNC.As shown in Figure 5, the network equipment that the present embodiment provides comprises:
First processing module 51, for obtaining the SGSN address for described first terminal preservation in self in the CS territory handoff procedure of first terminal;
Transceiver module 52, for sending to MSC by the CS territory handoff procedure of described first terminal by the SGSN address that described processing module 51 obtains.
The present embodiment is by the CS territory handoff procedure of terminal, the SGSN address be kept in BSC/RNC is supplied to MSC, thus MSC can directly preserve or by being transmitted to target BS C/RNC, make in the rSRVCC handoff procedure of terminal, MSC can obtain the SGSN address of terminal, thus realizes access transfer preparation flow process.
As shown in Figure 6, described first processing module can comprise:
Determining submodule 511, for determining in first terminal handoff procedure whether target BS C/RNC and this BSC/RNC is in same RA, notifying to obtain submodule 512 when determining and being in same RA;
Described acquisition submodule 512, for according to the described notice determining submodule, obtains the SGSN address for described first terminal preservation in self.
As shown in Figure 7, the network equipment that the present embodiment provides may further include:
Second processing module 53, for preserving the SGSN address that transceiver module 51 receives for the second terminal, and in described second terminal rSRVCC handoff procedure, from the SGSN address self being read as the second terminal preservation, and sends to MSC by described transceiver module;
Described transceiver module 51 is further used for the SGSN address from MSC in reception second terminal CS handoff procedure.
Further realizing of the present embodiment can with reference to the part realization relating to BSC/RNC in above-mentioned each embodiment of the method.
Mobile switching centre's embodiment:
The mobile switching centre that the present embodiment provides as shown in Figure 8, comprising:
Transceiver module 81, in terminal CS handoff procedure, receives the SGSN address from source BSC/RNC, and in described terminal rSRVCC handoff procedure, sends the handover request of CS territory to PS territory according to the SGSN address that processing module 82 provides to SGSN;
Processing module 82, for preserving the SGSN address that described transceiver module 81 receives, and in described terminal rSRVCC handoff procedure, is supplied to transceiver module by the SGSN address that self preserves.
In the present embodiment, the SGSN address from source BSC/RNC is directly preserved by MSC in the handoff procedure of terminal CS territory, or this address is transmitted to target BS C/RNC, thus MSC can obtain SGSN address from self or from BSC/RNC in the rSRVCC handoff procedure of terminal, achieve access transfer and prepare flow process.
As shown in Figure 9, described transceiver module 81 may be used for receiving the handover request for rSRVCC from BSC/RNC further; Then described processing module 82 can comprise:
First processing module 821, for preserving the SGSN address that described transceiver module 81 receives, and carrying out in rSRVCC process in described terminal, according to the notice from the second processing module 822, the SGSN address of self preserving being supplied to transceiver module 81;
Second processing module 822, for the handover request received according to described transceiver module 81, judges whether comprise SGSN address in this request, if so, then the SGSN address in this handover request is supplied to transceiver module 81; Otherwise, notify the first processing module 821.
Further realizing of the present embodiment can with reference to the part realization relating to MSC in above-mentioned each embodiment of the method.
Network processing system embodiment:
As shown in Figure 10, the network system that the present embodiment provides comprises:
Source BSC/RNC1001, in the handoff procedure of terminal CS territory, obtaining in self is the SGSN address that described terminal is preserved, and this SGSN address is sent to MSC1002.
Source BSC/RNC1001 when determining self and target BS C/RNC is in same RA, can just perform the step obtaining SGSN address; If determine that self and target BS C/RNC are not in same RA, perform the existing flow process switched across RA.
MSC1002, for receiving and preserving described SGSN address, or after receiving described SGSN address, is sent and is transmitted to target BS C/RNC.
Described MSC1002 may be used for further in the rSRVCC handoff procedure of described terminal, from self reading described SGSN address, or the SGSN address received from described target BS C/RNC, and send the handover request of CS territory to PS territory according to the SGSN address of reading or receive to SGSN.
Described MSC1002 may be used for receiving from BSC/RNC's further, after the handover request of rSRVCC, judge whether comprise SGSN address in this handover request, if so, then send the handover request of CS territory to PS territory according to the SGSN address in this handover request to SGSN; Otherwise, read SGSN address from self described in just performing, and send CS territory to the handover request in PS territory according to this SGSN address to SGSN.
The further realization of the present embodiment can with reference to above-mentioned each embodiment of the method.
In the present embodiment, by in the handoff procedure of CS territory, SGSN address is sent to MSC by source BSC/RNC, MSC is made directly to obtain SGSN address, thus improve the success rate of the SGSN address of MSC acquisition UE in follow-up rSRVCC handoff procedure, also namely improve and realize the success rate that access transfer prepares flow process; Or by MSC, the SGSN address from source BSC/RNC is sent to target BS C/RNC further, thus target BS C/RNC can prepare to send it to MSC in flow process in the access transfer of follow-up rSRVCC, improve MSC in follow-up rSRVCC handoff procedure and obtain the success rate of the SGSN address of UE, also namely improve and realize the success rate that access transfer prepares flow process.
Further, source BSC/RNC is determining target BS C/RNC and self is being in same RA, thus when the SGSN address of switching terminal can not change, just SGSN address is supplied to MSC or is transferred to target BS C/RNC by MSC, decrease unnecessary information transmission, save network traffics.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (16)
1. a switching handling method, is characterized in that, the method comprises:
In the handoff procedure of terminating circuit CS territory, it is the services package switching network support node SGSN address that described terminal is preserved that source base station controller BSC/ radio network controller (RNC) obtains in self;
Described SGSN address is sent to moving exchanging center MSC by source BSC/RNC in the handoff procedure of described CS territory;
After described MSC receives described SGSN address, described SGSN address is transmitted to target BS C/RNC, preserves described SGSN address to make described target BS C/RNC;
Described SGSN address sends to MSC to comprise by described source BSC/RNC in the handoff procedure of CS territory:
Described source BSC/RNC carries described SGSN address to MSC by sending to the transparent transmission container transparentcontainer in the handover request of MSC;
Then SGSN address is transmitted to target BS C/RNC by described MSC, to make described target BS C/RNC preserve described SGSN address, comprising:
Described MSC is by transparentcontainer described in the handover request transparent transmission that sends to described target BS C/RNC, after the handover request received from described MSC to make described target BS C/RNC, from described transparentcontainer, obtain described SGSN address and preserve.
2. method according to claim 1, is characterized in that, when described source BSC/RNC determines the target BS C/RNC that described CS territory switches and source BSC/RNC is in same Route Area RA, and the step of the acquisition SGSN address described in execution.
3. method according to claim 1 and 2, is characterized in that, after described MSC receives described SGSN address, preserves described SGSN address.
4. method according to claim 3, is characterized in that, described MSC comprises after preserving described SGSN address further:
In the reverse injection of described terminal frequently continuous voice call rSRVCC handoff procedure, described MSC from self reading described SGSN address, and sends the handover request of CS territory to packet switched ps domain according to this SGSN address to SGSN.
5. method according to claim 4, is characterized in that, described MSC takes a step forward comprise from self reading described SGSN address:
Described MSC receives from BSC/RNC, for the handover request of rSRVCC;
Described MSC judges whether comprise SGSN address in the described handover request received, and if so, then sends the handover request of CS territory to PS territory according to the SGSN address in this handover request to SGSN; Otherwise, described in execution from the step self reading described SGSN address.
6. method according to claim 1, is characterized in that, described target BS C/RNC comprises after preserving described SGSN address further:
In described terminal rSRVCC handoff procedure, in the handover request that described target BS C/RNC sends to MSC, carry the described SGSN address of self preserving;
The MSC receiving described handover request sends the handover request of CS territory to PS territory according to described SGSN address to SGSN.
7. a switching handling method, is characterized in that, the method comprises:
In the handoff procedure of terminal CS territory, MSC receives the SGSN address from source BSC/RNC, and preserves this address; After described MSC receives described SGSN address, described SGSN address is transmitted to target BS C/RNC, preserves described SGSN address to make described target BS C/RNC;
In described terminal rSRVCC handoff procedure, described MSC reads the described SGSN address that self preserves, and sends the handover request of CS territory to PS territory according to this address to SGSN;
SGSN address is transmitted to target BS C/RNC by wherein said MSC, to make described target BS C/RNC preserve described SGSN address, comprising:
Described MSC is by sending to the handover request transparent transmission transparentcontainer of described target BS C/RNC, after the handover request received from described MSC to make described target BS C/RNC, from described transparentcontainer, obtain described SGSN address and preserve.
8. method according to claim 7, is characterized in that, described MSC reads the described SGSN address of self preserving and takes a step forward and comprise:
Described MSC receive from BSC/RNC, for the handover request of rSRVCC;
Described MSC judges whether comprise SGSN address in the described handover request received, and if so, then sends the handover request of CS territory to PS territory according to the SGSN address in this handover request to SGSN; Otherwise, described in execution from the step self reading described SGSN address.
9. a network equipment, this network equipment is base station controller or radio network controller, it is characterized in that, this network equipment comprises:
First processing module, for obtaining self as source BSC/RNC in the handoff procedure of first terminal CS territory, is the SGSN address that described first terminal is preserved;
Transceiver module, for sending to MSC by the SGSN address described processing module obtained in the handoff procedure of described first terminal CS territory;
Comprise further:
Second processing module, for preserving the SGSN address that transceiver module receives for the second terminal, and in described second terminal rSRVCC handoff procedure, from the SGSN address self being read as the second terminal preservation, and sends to MSC by described transceiver module;
Described transceiver module is further used for the SGSN address from MSC in the handoff procedure of reception second terminal CS territory; The wherein said SGSN address from MSC is that described MSC is by sending to the handover request transparent transmission transparentcontainer of the described network equipment, after the handover request received from described MSC to make the described network equipment, from described transparentcontainer, obtain described SGSN address and preserve.
10. the network equipment according to claim 9, is characterized in that, described first processing module comprises:
Determining submodule, for determining whether target BS C/RNC and this BSC/RNC is in same RA in the handoff procedure of first terminal CS territory, notifying to obtain submodule when determining and being in same RA;
Described acquisition submodule, for according to the described notice determining submodule, obtains the SGSN address for described first terminal preservation in self.
11. 1 kinds of mobile switching centres, is characterized in that, comprising:
Transceiver module, in terminal CS handoff procedure, receives the SGSN address from source BSC/RNC, and in described terminal rSRVCC handoff procedure, sends the handover request of CS territory to PS territory according to the SGSN address that processing module provides to SGSN;
Processing module, for preserving the SGSN address of described transceiver module reception or this address being transmitted to target BS C/RNC, and in described terminal rSRVCC handoff procedure, is supplied to transceiver module by the SGSN address that self preserves;
Wherein said this address is transmitted to target BS C/RNC, comprises:
By sending to the handover request transparent transmission transparentcontainer of described target BS C/RNC, after the handover request received from described moving exchanging center MSC to make described target BS C/RNC, from described transparentcontainer, obtain described SGSN address and preserve.
12. mobile switching centres according to claim 11, is characterized in that, described transceiver module is further used for receiving the handover request for rSRVCC from BSC/RNC;
Described processing module comprises:
First processing module, for preserving the SGSN address that described transceiver module receives, and carrying out in rSRVCC process in described terminal, according to the notice from the second processing module, the SGSN address of self preserving being supplied to transceiver module;
Second processing module, for the handover request received according to described transceiver module, judges whether comprise SGSN address in this request, if so, then the SGSN address in this handover request is supplied to transceiver module; Otherwise, notify the first processing module.
13. 1 kinds of network systems, is characterized in that, comprising:
Source BSC/RNC, in the handoff procedure of terminal CS territory, obtaining in self is the SGSN address that described terminal is preserved, and this SGSN address is sent to MSC;
MSC, for receiving and preserving described SGSN address, or after receiving described SGSN address, is sent and is transmitted to target BS C/RNC;
Wherein said transmission is transmitted to target BS C/RNC, comprising:
By sending to the handover request transparent transmission transparentcontainer of described target BS C/RNC, after the handover request received from described MSC to make described target BS C/RNC, from described transparentcontainer, obtain described SGSN address and preserve.
14. network systems according to claim 13, it is characterized in that, described source BSC/RNC is when determining target BS C/RNC and source BSC/RNC is in same RA, and just obtaining in self is the SGSN address that described terminal is preserved, and this SGSN address is sent to MSC.
15. network systems according to claim 13 or 14, is characterized in that,
Described MSC is further used in described terminal rSRVCC handoff procedure, from self reading described SGSN address, or the SGSN address received from described target BS C/RNC, and send the handover request of CS territory to PS territory according to the SGSN address of reading or receive to SGSN.
16. network systems according to claim 15, is characterized in that,
Described MSC be further used for receive from BSC/RNC, for the handover request of rSRVCC after, judge whether comprise SGSN address in this handover request, if so, then the handover request of CS territory to PS territory is sent according to the SGSN address in this handover request to SGSN; Otherwise, read SGSN address from self described in just performing, and send CS territory to the handover request in PS territory according to this SGSN address to SGSN.
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