CN101656994B

CN101656994B - Method for switching services and allocating network resources, network node and mobile management entity device

Info

Publication number: CN101656994B
Application number: CN200810118457.7A
Authority: CN
Inventors: 于益俊; 孙晓姬
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2008-08-22
Filing date: 2008-08-22
Publication date: 2014-11-05
Anticipated expiration: 2028-08-22
Also published as: CN101656994A; WO2010020176A1

Abstract

The embodiment of the invention provides a method for switching services and allocating network resources, a network node and a mobile management entity device. When a terminal performs service switching, a source side access network indicates the amount of switching requests to be received by the current switching at a target side network by carrying switching request amount marks in the switching requests, and after knowing the amount of the switching requests according to the switching request amount marks and receiving the switching request with a corresponding amount, the target side network allocates the network resources in a unified mode to avoid allocation errors of the network resources, thereby ensuring the terminal to finish the service switching successfully and improving the switching success ratio.

Description

Business is switched and Resource Allocation in Networks method, network node and mobile management entity device

Technical field

The embodiment of the present invention relates to communication technical field, relates in particular to a kind of business and switches and Resource Allocation in Networks method, network node and mobile management entity device.

Background technology

In existing network, terminal (User Equipment; Hereinafter to be referred as: UE) at universal mobile telecommunications system (Universal Mobile Telecommunications System; Be called for short: UMTS) land radio access web (Evolved UMTS Terrestrial Radio Accemm Network; Hereinafter to be referred as: when eUTRAN) network carries out speech business, if need to be switched to for example GERAN network of target side network or UTRAN network due to the movement of UE time, and target side network has dual-transfer mode (Dual Transfer Mode; Be called for short: DTM) or PS switch (be called for short PSHO) ability, mobile management entity (Mobility Management Entity; Hereinafter to be referred as: MME) speech business of UE can be switched to target side network together with non-voice service.For speech business, send a handover request to (the Mobile Switching Center of target side mobile switching centre by MME; Hereinafter to be referred as: MSC), target side MSC sends a handover request to target side RNS (Radio Network Subsystem; Be called for short: RNS) be GERAN or UTRAN; For non-voice service, send a handover request to target SGSN by MME, by GPRS serving GPRS support node (Serving GPRS Supporting Node; Be called for short: SGSN) sending a handover request to target side RNS is GERAN or UTRAN, and in handoff procedure, target side RNS is receiving after a handover request, need to wait for an other handover request, then distribute interface-free resources unitedly.

But when UE carries out for example single connecting system voice continuity (SingleRadio VCC in eUTRAN, hereinafter to be referred as: SRVCC) in the process of business, because the movement of UE need to be switched to for example GERAN network of target side network or UTRAN network, when functional entity eNodeB in eUTRAN will initiate to switch in judgement, because speech business and non-voice service share an interface at eUTRAN network, so cannot receive whether need to wait for another one handover request after the handover request of same UE by carrying out notification target RNS to outgoing interface linking number, distribute interface-free resources unitedly according to " CSrelocation " and " PS relocation " these two handover request.

Inventor finds realizing in process of the present invention: in prior art because speech business and non-voice service share an interface in eUTRAN network, therefore source Access Network switches and will have a handover request information about current business according to UE interface quantity indicating target side RNS, but in fact current business switching has two handover request information.Be switched to from eUTRAN network at UE the process that GERAN or UTRAN network carry out for example SRVCC business, target side RNS is owing to not knowing that this business switching has two handover request message, therefore receiving after a handover request message, just carry out immediately Resource Allocation in Networks, can cause so up-to-date switching response message to cover, resource is distributed inconsistent or is repeated, and even causes handoff failure, handover success rate is low, affects QoS.

Summary of the invention

The embodiment of the present invention provides a kind of business to switch and Resource Allocation in Networks method, network node and mobile management entity device, in order to solve in the process that in prior art, terminal is roamed between heterogeneous networks, the defects such as business handover success rate is low, realize according to the ability of target side network, inform the handover request number information that target side RNC switches about current business, so that target side network unified distribution Internet resources, improve business handover success rate.

The embodiment of the present invention provides a kind of business switch method, comprising:

Source access network is the bearer types with the business that will switch according to the ability of described target side network, send the first handover request message to described target side network, described the first handover request message carries handover request quantity mark, described handover request quantity mark be used to indicate described target side network receive with the handover request of described handover request quantity mark respective amount after distribute Internet resources unitedly for terminal.

The embodiment of the present invention also provides a kind of business switch method, comprising:

After the second handover request message that source Mobility Management Entity reception sources side access network sends, bearer types according to the ability of described target side network with the business that will switch, send the 3rd handover request message to described target side network, described the 3rd handover request message carries handover request quantity mark, described handover request quantity mark be used to indicate described target side network receive with the handover request of described handover request quantity mark respective amount after distribute Internet resources unitedly for terminal.

The embodiment of the present invention also provides a kind of Resource Allocation in Networks method, comprising:

Target side access network receiving target side shifting switching center or target side GPRS serving GPRS support node handover request that send, that initiated by source access network, described handover request comprises handover request quantity mark;

Described target side access network obtains the quantity information of the handover request that will receive according to described handover request quantity mark, be terminal unified distribution Internet resources.

The embodiment of the present invention provides a kind of Resource Allocation in Networks method again, comprising:

Target side access network is successively receiving after target side mobile switching centre and target side GPRS serving GPRS support node handover request that send, that initiated by source access network, is terminal unified distribution Internet resources according to receive two handover request;

Described target side access network to after the handover request that receives respond and return response message, described response message comprises resource information sign, and described resource information sign comprises that for its received response message that carries described resource information sign of notification source side shifting management entity described target side network is the network resource information of described terminal unified distribution.

The embodiment of the present invention provides a kind of apparatus for network node again, comprising:

The first judge module, for knowing that terminal will carry out business from source network to target side network switches, judge the support information of professional ability and the support information of dual-transfer mode ability or data field switching capability of described target side network, and the bearer types of the business that will switch existence;

The first sending module, be used for according to the judged result of described the first judge module, send the first handover request message to described target side network, described the first handover request message carries handover request quantity mark, described handover request quantity mark be used to indicate described target side network receive with the handover request of described handover request quantity mark respective amount after be described terminal unified distribution Internet resources.

The embodiment of the present invention provides a kind of mobile management entity device again, comprising:

The second judge module, for receiving after the second handover request message of source access network transmission, judge the support information of professional ability and the support information of dual-transfer mode ability or data field switching capability of described target side network, and the bearer types of the business that will switch existence;

The second sending module, be used for according to the judged result of described the second judge module, send the 3rd handover request message to described target side network, described the 3rd handover request message carries handover request quantity mark, and described handover request quantity mark is used to indicate described target side network and distributes Internet resources unitedly for terminal receiving after identifying corresponding handover request with described handover request quantity.

The first receiver module, for the handover request of receiving target side shifting switching center or the business switching that send, that initiated by source access network of target side GPRS serving GPRS support node, described handover request comprises handover request quantity mark;

First resource distribution module, for obtain the quantity information of the handover request that will receive according to described handover request quantity mark, is terminal unified distribution Internet resources.

The second receiver module, for the handover request of receiving target side shifting switching center and the business switching that send, that initiated by source access network of target side GPRS serving GPRS support node;

Secondary resource distribution module is described terminal unified distribution Internet resources after the handover request of switching for the business that receives target side mobile switching centre and the transmission of target side GPRS serving GPRS support node in described the second receiver module priority;

Respond module, for to after the handover request that receives respond and return response message, described response message comprises resource information sign, and described resource information sign comprises that for its received response message that carries described resource information sign of notification source side shifting management entity described target side network is the network resource information of described terminal unified distribution.

The 3rd receiver module, the response message of the handover request that the described mobile management entity device returning for receiving target side network sends;

The 3rd judge module, be used for judging whether described response message comprises resource information sign, described resource information sign is for notifying its received response message that carries described resource information sign of described Mobility Management Entity to comprise that described target side network is the network resource information of terminal unified distribution;

Processing module, if judge that for described the 3rd judge module described response message comprises described resource information sign, send switching command message to source access network, described switching command message is included as the network resource information of described terminal unified distribution.

The business that the embodiment of the present invention provides is switched and Resource Allocation in Networks method, network node and mobile management entity device, when terminal carrying out service switches, source network or source MME are by the quantity of the handover request of carrying handover request quantity mark indicating target side network will receive about current switching in handover request, target side network is being learnt handover request quantity and is receiving after the handover request of respective amount according to handover request quantity mark, for terminal unified distribution Internet resources, avoid occurring Resource Allocation in Networks mistake, thereby ensure that terminal is successfully completed business and switches, improve handover success rate.

Brief description of the drawings

Fig. 1 is radio gradual network structure schematic diagram;

Fig. 2 is SRVCC system architecture schematic diagram;

Fig. 3 is business switch method embodiment mono-flow chart of the present invention;

Fig. 4 is business switch method embodiment bis-signaling process figure of the present invention;

Fig. 5 is business switch method embodiment tri-flow charts of the present invention;

Fig. 6 is business switch method embodiment tetra-signaling process figure of the present invention;

Fig. 7 is business switch method embodiment five signaling process figure of the present invention;

Fig. 8 is resource allocation methods embodiment mono-flow chart of the present invention;

Fig. 9 is resource allocation methods embodiment bis-flow charts of the present invention;

Figure 10 is resource allocation methods embodiment tri-signaling process figure of the present invention;

Figure 11 is a kind of apparatus for network node example structure of the present invention schematic diagram;

Figure 12 is a kind of mobile management entity device example structure of the present invention schematic diagram;

Figure 13 is the another kind of apparatus for network node example structure of the present invention schematic diagram;

Figure 14 is another apparatus for network node example structure schematic diagram of the present invention;

Figure 15 is the another kind of mobile management entity device example structure of the present invention figure.

Embodiment

Further illustrate the technical scheme of the embodiment of the present invention below in conjunction with the drawings and specific embodiments.

Fig. 1 is radio gradual network structure schematic diagram, third generation collaborative project (3rd GenerationPartnership Project; Hereinafter to be referred as: 3GPP) in order to strengthen the competitiveness of future network, built a kind of new evolvement network, as shown in Figure 1, its system comprises that eUTRAN network is for realizing all and the wireless relevant function of evolvement network; Mobile management network element (MobilityManagement Entity; Hereinafter to be referred as: MME), be responsible for the mobile management of chain of command, comprise user's context and mobile status management, distributing user temporary identity mark etc.; Service gateway entity (Serving Gateway; Hereinafter to be referred as: SGW), be the user's face anchor point between 3GPP access network, stop the interface of E-TURAN; Grouped data network gateway entity (Packet Data NetworkGateway; Hereinafter to be referred as: PGW) be the user's face anchor point between 3GPP access network and non-3 GPP access network network, stop and external packet data network (Packet Data Network; Hereinafter to be referred as: interface PDN)."Policy and Charging Rules Function entity (Policy and Charging RuleFunction; Hereinafter to be referred as: PCRF) determine and flow based charging control function for policy control.Home network server (Home Subscriber Server; Hereinafter to be referred as: HSS) for storing user subscription information.

Fig. 2 is SRVCC system architecture schematic diagram, as shown in Figure 2, in order to ensure the continuity of speech business, needs enhanced MSC function, and the MSC mentioning in following examples refers to for the MSC after SRVCC upgrading service.In SRVCC system, the Main Function of MSC is to help voice continuity between single access voice terminal (Single Radio UE) completing circuit territory (being called for short CS territory) and data field (being called for short PS territory); VCC-AS is IP multimedia system (IP Multimedia Subsystem; Be called for short: the functional entity switching for helping through territory IMS); Wherein the interface between MME and MSC is SV interface, and this interface does not have SGs interface function, and user can not register a user in MSC by combined registering flow process at eUTRAN network.In the time that UE carries out SRVCC business, MME sends message informing MSC and carries out territory switching, and now MSC needs to carry out speech business and routes to IMS territory to carry out territory switching.

UE carries out in the process of SRVCC business at source network, because moving, UE progressively enters into target side network from source network, now to ensure that carried out SRVCC business is not subject to interrupt disturbing, SRVCC business to be switched to target side network from source network, because speech business and non-voice service in source access network eUTRAN share an interface, and in target side access network GERAN or UTRAN speech business and non-voice service respectively by CS territory and the carrying of PS territory, therefore while proceeding to the business switching of target side network, target side network will receive two handover request, for example can be respectively CS territory handover request and PS territory handover request, target side network is successfully receiving after two handover request the Internet resources in two territories to terminal distribution uniformly, for carrying out, SRVCC business is used.But target side network in advance and do not know to have two handover request about current switching, therefore for fear of target side network error ground allocation of network resources, the embodiment of the present invention provides following settling mode, ensure that target side network is terminal distribution Internet resources exactly, ensure business handover success.Following examples only switch to example and describe to carry out SRVCC business, but the present invention is not limited to this business realizing.

The settling mode that some embodiment of business switch method of the present invention provide is that source access network learns that terminal will carry out business from source network to target side network switches, bearer types according to the ability of described target side network with the business that will switch, bearer types can comprise voice bearer and non-voice carrying, send and in the first handover request message, increase a handover request quantity mark to described target side network, this handover request quantity mark can indicating target side network receive with the handover request of described handover request quantity mark respective amount after be terminal distribution Internet resources, Fig. 3 is business switch method embodiment mono-flow chart of the present invention, as shown in Figure 3, the method comprises:

Step 100, source access network learns that terminal will carry out business from described source network to target side network switches, judge the support information of professional ability and the support information of dual-transfer mode ability or data field switching capability of described target side network, and the bearer types of the business that will switch;

Terminal is carried out in the process of SRVCC business in source network, will carry out at any time the measurement of network signal and send measurement report to source network, source access network eUTRAN learns that according to the measurement report of the terminal that receives the business that terminal will be carried out from source network to target side network switches; After learning and will switching, eUTRAN will judge whether target side network supports SRVCC professional ability, and whether target side network support DTM or PSHO ability, then according to quality of service type mark (the QoS Class Identifier setting up in service quality (Qos) parameter of carrying; Hereinafter to be referred as: QCI) judge that whether this business exists voice bearer and non-voice carrying simultaneously, then correspondingly processes according to above judged result.

Step 101, send the first handover request message to described target side network, described the first handover request message carries handover request quantity mark, described handover request quantity mark be used to indicate described target side network receive with the handover request of described handover request quantity mark respective amount after be described terminal unified distribution Internet resources.

EUTRAN makes corresponding operating according to the judged result of various information, comprises following several situation:

The first situation, eUTRAN judges that terminal will carry out business from source network to target side network switches, if judgement learns that target side network has corresponding SRVCC professional ability, and there are DTM or PSHO ability, and judgement learns that the service bearer that will switch exists voice bearer and non-voice carrying simultaneously according to QCI, send the first handover request message to target side network, described the first handover request message carries handover request quantity mark, it is described terminal distribution Internet resources receiving after two handover request corresponding with described handover request quantity mark that described handover request quantity mark is used to indicate described target side network.Two wherein said handover request can be respectively CS handover request and PS handover request, and wherein CS handover request is that target side access network GERAN or UTRAN receive target side MSC and send, and solicited message comprises handover request quantity mark; PS handover request is that the target side SGSN that target side access network GERAN or UTRAN receive sends, and also comprises handover request quantity mark in solicited message.Which handover request no matter target side access network GERAN or UTRAN first receive all can know the indication information about handover request quantity, and is terminal unified distribution Internet resources receiving after two handover request.

The second situation, eUTRAN learns that according to solicited message terminal will carry out business from source network to target side network switches, if judgement learns that described target side network has DTM or PSHO ability, but without corresponding SRVCC professional ability, send the first handover request message to target side network, described the first handover request message carries handover request quantity mark, and it is described terminal distribution Internet resources receiving after a handover request corresponding with described handover request quantity mark that described handover request quantity mark is used to indicate target side Access Network.For example target side Access Network GERAN or UTRAN are receiving after the PS handover request that comprises handover request quantity mark that target side SGSN sends, learn that current switching only has PS territory to switch, therefore receiving after the handover request of PS territory, just directly carrying out Resource Allocation in Networks.

The third situation, eUTRAN judges that according to measurement report terminal need to carry out the switching from source network to target side network, if judgement learns that target side network has corresponding SRVCC professional ability, and there are DTM or PSHO ability, and judgement learns that the business that will switch exists voice bearer or non-voice carrying according to QCI, send the first handover request message to target side network, described the first handover request message carries handover request quantity mark, it is described terminal distribution Internet resources receiving after a handover request corresponding with described handover request quantity mark that described handover request quantity mark is used to indicate target side Access Network.Target side Access Network GERAN or UTRAN, receiving after the handover request that comprises handover request quantity mark, learn that current switching only has a handover request, are therefore receiving after this handover request, just directly carry out Resource Allocation in Networks.In above three kinds of situations, eUTRAN all sends handover request message by source Mobility Management Entity to target side network.

The 4th kind of situation, eUTRAN judges that according to measurement report terminal will carry out business from source network to target side network and switch, if judgement learns that target side network has corresponding SRVCC professional ability, but without DTM or PSHO ability, and judgement learns that the service bearer that will switch only exists non-voice carrying, now can not switch according to QCI.

Also have other analogue, will not enumerate herein.

Fig. 4 is business switch method embodiment bis-signaling process figure of the present invention, and as shown in Figure 4, the method comprises:

Step 201, UE send measurement report to source connecting system eUTRAN;

Step 202, eUTRAN send handover request message to source MME;

If eUTRAN judges that according to measurement report need to initiate SRVCC switches, and target side network support DTM or PDHO ability, and eUTRAN judges that according to QCI parameter business exists voice bearer and non-voice carrying simultaneously, eUTRAN can carry a cell bank switching number of request quantitative character in " Sourceto Target Transparent Container " parameter in transmission container parameter to carry out indicating target side RNS be that the current existence of GERAN or UTRAN comprises " CS relocation " and " PS relocation " two switchings, target side RNS is receiving that after a handover request, another one handover request is waited in meeting, thereby distribution interface-free resources, in " HandvoerRequired " message that eUTRAN sends, carry " Source to Target Transparent Container " and " SRVCCindication " parameter, wherein in " Source to Target Transparent Container " parameter, carry parameter and carry out two handover request of the current existence of indicating target RNS,

Step 203a, source MME distinguish voice bearer and non-voice carrying according to QCI parameter, and " SRVCC indication " indication information sending according to eUTRAN sends " Forwardrelocation Req " message to MSC server, carries VDN, MSISDN, " Sourceto Target Transparent Container " and " MM Context " parameter in message;

Step 203b, MSC server send " Prepare HO Req " message to target side MSC;

Step 203c, target side MSC initiate " CS relocation " flow process, and target side MSC sends " Relocation Request " message, carry that " Source to Target Transparent Container ' parameter is to target side RNS.Target side RNS is according to the handover request quantity mark of carrying in " Source to TargetTransparent Container " parameter of step 202, and two handover request of current existence are learnt in judgement;

Step 204a, source MME send " Forward Relocation Req " message to target side SGSN, initiate " PS relocation ", carry " Source to Target TransparentContainer " and " MM Context " in message;

Step 204b, target side SGSN send " Relocation Request " message to target side RNS, carry " Source to Target Transparent Container " in message;

Target side RNS is according to the handover request quantity mark of carrying in " Source to Target Transparent Container " parameter in step 202, and two handover request of current existence are learnt in judgement.

It should be noted, step 203a and step 204a there is no sequencing, and these two message of step 203c and step 204b not necessarily which bar first arrive target side RNS, but the indication information that target side RNS can carry according to source eUTRAN judges to receive after a handover request, whether to need to wait for that an other handover request comes coordinated allocation PS and CS resource.

Step 205a, target side RNS coordinated allocation PS and CS resource, and send " RelocationRequest Acknowledge " message, carry " Target to Source Transparent Container " to target side SGSN;

Step 205b, target side SGSN send Forward Relocation Response message, carry " Target to Source Transparent Container " message to source MME;

Step 206a, target side RNS send " Relocation Request Acknowledge " message, carry " Target to Source Transparent Container " to target side MSC;

Merit attention is, after the complete PS of target side RNS coordinated allocation and CS resource, to send handover acknowledge request message and send handover acknowledge request message without sequencing to target side MSC to target side SGSN.

Step 206b, target side MSC send " Prepare Handover Response " message to MSC server;

Step 206c, the circuit of setting up between target side MSC and the media gateway (MGW) of MSC server association connect;

Step 207, MSC server are initiated to the territory switching in IMS territory, upgrade access leg, and now descending VOIP packet forwards from CS access leg;

Step 208, MSC server send " Forward Relocation Response " and carry " Target to Source Transparent Container " cell to source MME;

Step 209, synchronous two handover request of source MME, send " Handover Command " message to eUTRAN, carries " Target to Source Transparent Container " in message;

Step 2010, eUTRAN send " Handover from eUTRAN Command " message and, to UE, impel UE to be switched to aiming field;

Step 2011, UE are switched to aiming field, and switching completes.

In above embodiment, eNodeB in source access network is in the time determining to initiate to switch, if judging target side network, eNodeB has SRVCC and DTM/PSHO ability, and according to QCI parameter there is voice bearer and the carrying of other non-voices in judgement, in " Source to TargetTransparent Container ", carry parameter and carry out two switchings about this UE of notification target side RNS existence: one is " CS relocation ", and one is " PS relocation ".Target side RNS in the time receiving a handover request, thereby can wait for that another one handover request synchronously distributes CS resource and PS resource, be successfully completed switching.Otherwise, if target side network do not support SRVCC or do not support DTM or PSHO ability or do not have voice bearer or do not exist under the condition of non-voice carrying, eUTRAN carries a parameter and carrys out current of indicating target side RNS and have a handover request about this UE in " Source to Target Transparent Container ".

In above embodiment, eUTRAN can adopt various ways to send to target side Access Network transmission handover request quantity mark, for example comprise that eUTRAN sends described the first handover request message to target side Access Network, described the first handoff request message is drawn together transmission container parameter, described handover request quantity mark is stored in the newly-increased cell of described transmission container parameter, and above-described embodiment adopts this kind of send mode exactly; Can also be that eUTRAN sends described the first handover request message to target side Access Network, described the first handoff request message be drawn together transmission container parameter, and described handover request quantity mark is stored in the interface linking number cell in described transmission container parameter; Can be that eUTRAN sends described the first handover request message to GERAN or UTRAN again, described the first handoff request message be drawn together transmission container parameter and described handover request quantity mark.

In the business switch method that the present embodiment provides, when the terminal of carrying out SRVCC business is switched to GERAN or UTRAN by eUTRAN network, the handover request quantity mark that target side RNS can send according to source network, for different switchings, for example only there is " CS relocation " or only have " PSrelocation " or have the type such as " CS relocation " and " PS relocation " simultaneously, distribute corresponding Internet resources, avoid occurring Resource Allocation in Networks mistake, thereby ensure that terminal is successfully completed business and switches, improve handover success rate.

The settling mode that other embodiment of business switch method of the present invention provide is that the business that source MME reception sources side access network will carry out from source network to target side network according to terminal is switched the second handover request message sending, bearer types according to the ability of target side network with the business that will switch, send the 3rd handover request message to target side network, and in the 3rd handover request message, increase a handover request quantity mark, this handover request quantity mark can indicating target side network receive with the handover request of described handover request quantity mark respective amount after distribute Internet resources unitedly for terminal, Fig. 5 is business switch method embodiment tri-flow charts of the present invention, as shown in Figure 5, the method comprises:

Step 300, source MME receives the second handover request message that eUTRAN sends;

Terminal sends measurement report to eUTRAN, and eUTRAN judge that according to the measurement report of the terminal that receives terminal will carry out the business switching from source network to target side network; After learning and will switching, eUTRAN will send the second handover request message to source MME.

Step 301, source MME is according to the support information of the support information of the professional ability of target side network and DTM or PSHO ability, and according to the bearer types information of QCI judgement (voice bearer or non-voice carrying), send the 3rd handover request message to target side network, described the 3rd handover request message carries handover request quantity mark, described handover request quantity mark be used to indicate described target side network receive with the handover request of described handover request quantity mark respective amount after be described terminal distribution Internet resources.

Source MME receives after the second handover request message of eUTRAN transmission, the professional ability sending according to eUTRAN, and target side network support DTM or PSHO ability, according to quality of service type mark QCI, judgement learns that the business that will switch exists voice bearer and non-voice carrying simultaneously, send the 3rd handover request message to target side network, described the 3rd handover request message carries handover request quantity mark, it is described terminal unified distribution Internet resources receiving after two handover request corresponding with described handover request quantity mark that described handover request quantity mark is used to indicate described target side network.Two handover request corresponding to wherein said handover request quantity mark comprise CS handover request and PS handover request.Source MME has included handover request quantity mark in the forwarding handover request sending to MSC server and target side SGSN respectively, that is to say and in the process that switch in the CS territory of initiating and switch in PS territory, all carry handover request quantity mark, target side network can learn from two handover request that receive that current business switching needs the handover request quantity information receiving.

Also have, source MME receives after the second handover request message of eUTRAN transmission, if judgement learns that target side network has dual-transfer mode ability or data field switching capability, but without corresponding professional ability, send the 3rd handover request message to target side network, described the 3rd handover request message carries handover request quantity mark, and it is described terminal distribution Internet resources receiving after a handover request corresponding with described handover request quantity mark that described handover request quantity mark is used to indicate described target side network, have again, source MME receives after the second handover request message of eUTRAN transmission, if judgement learns that target side network has corresponding professional ability, and there are dual-transfer mode ability or data field switching capability, and learn that according to described quality of service type mark the business that will switch exists voice bearer or non-voice carrying, send the 3rd handover request message to target side network, described the 3rd handover request message carries handover request quantity mark, it is described terminal distribution Internet resources receiving after a handover request corresponding with described handover request quantity mark that described handover request quantity mark is used to indicate described target side network.

The mode that source MME increases handover request quantity mark in handover request can have multiple, for example can utilize the second handoff request message to draw together transmission container parameter (" Source to targetTransparent Container " parameter) carries, source MME receives after described the second handover request message, described handover request quantity mark is stored in cell newly-increased in described transmission container parameter, send the 3rd handover request message to target side network, described the 3rd handoff request message is drawn together the transmission container parameter that stores described handover request quantity mark.Can also be that source MME receives after described the second handover request message, described handover request quantity mark is stored in transmission container parameter in interface linking number cell, for example parameter " Iu connection number " is revised as to 2, send the 3rd handover request message to described target side network, described the 3rd handoff request message is drawn together the transmission container parameter that stores described handover request quantity mark.Can also be handover request quantity mark not to be stored in transmission container parameter, but source MME carries handover request quantity mark by an independent cell, source MME receives after described the second handover request message, send the 3rd handover request message to target side network, described the 3rd handoff request message is drawn together described handover request quantity mark and transmission container parameter.

Fig. 6 is business switch method embodiment tetra-signaling process figure of the present invention, and as shown in Figure 6, the method comprises:

Measurement report is sent to eUTRAN by step 401, UE;

Step 402, eUTRAN send " Handover Required " message informing source MME, carry " Source to Target Transparent Container " and " SRVCC indication " parameter in message;

Step 403a, source MME judge and have voice bearer and non-voice carrying according to QCI parameter, and " SRVCC indication " indication information sending according to eUTRAN, and target side network support DTM or PSHO ability, source MME unpacks " Source to Target TransparentContainer ", and a newly-increased indication information is that handover request quantity identifies to inform target side network in this cell.Source MME sends " Forward relocation Req " message to MSC server, carries VDN, MSISDN, " Source to Target Transparent Container " and " MMContext " parameter in message;

Step 403b, MSC server send " Prepare HO Req " message to target side MSC;

Step 403c, target side MSC initiate " CS relocation " flow process.Target side MSC sends " Relocation Request " message, and carrying " Source to Target Transparent Container " parameter is GERAN or UTRAN to target side RNS.Target side RNS, according to the indication information carrying in " Sourceto Target Transparent Container " parameter in step 403a, judges two handover request of current existence;

Step 404a, source MME unpack " Source to Target Transparent Container ", and a newly-increased indication information is that handover request quantity identifies to inform target side RNS in this cell, two handover request of current existence are also packed this information in " Source to target Transparent Container ".And source MME sends " Forward Relocation Req " message to target side SGSN, initiates PS reloction, carries " Source to Target Transparent Container " and " MMContext " in message;

Step 404b, target side SGSN send " Relocation Request " message to target side RNS, carry " Source to Target Transparent Container " in message;

Target side RNS, according to the indication information carrying in " Source to Target Transparent Container " parameter, judges two handover request of current existence.

It should be noted, step 403a and step 404a there is no sequencing, and these two message of step 403c and step 404b not necessarily which bar first arrive target side RNS, but the indication information that target side RNS can carry according to source eUTRAN judges to receive after a handover request, whether to need to wait for that an other handover request comes coordinated allocation PS and CS resource.

Step 405a, target side RNS coordinated allocation PS and CS resource, and send " RelocationRequest Acknowledge " message, carry " Target to Source Transparent Container " to target side SGSN;

Step 405b, target side SGSN send " Forward Relocation Response " message, carry " Target to Source Transparent Container " message to source MME;

Step 406a, target side RNS send " Relocation Request Acknowledge " message, carry " Target to Source Transparent Container " to target side MSC;

Step 406b, target side MSC send " Prepare Handover Response " message to MSC server;

Step 406c, the circuit of setting up between target side MSC and the MGW of MSC server association connect;

Step 407, MSC server are initiated to the territory switching in IMS territory, upgrade access leg, and now descending VOIP packet forwards from CS access leg;

Step 408, MSC server send " Forward Relocation Response " and carry " Targetto Source Transparent Container " cell to source MME;

Step 409, synchronous two handover request of source MME, send " Handover Command " message to eUTRAN, carries " Target to Source Transparent Container " in message;

Step 4010, eUTRAN send " Handover from eUTRAN Command " message and, to UE, impel UE to be switched to aiming field;

Step 4011, UE are switched to aiming field, and switching completes.

In " Source to target Transparent Container ", carry handover request quantity to identify current existence of indicating target side RNS " CS relocation " different with " PSrelocation " from the above embodiments by eUTRAN, the method that the present embodiment provides is that the indication information that provides handover request quantity mark by source MME is informed that target side RNS is current and had multiple handover request, in the business switch method that the present embodiment provides, when the terminal of carrying out SRVCC business is switched to target side network by source network, the handover request quantity mark that target side RNS can send according to source MME, for different switchings, distribute corresponding Internet resources, avoid occurring Resource Allocation in Networks mistake, thereby ensure that terminal is successfully completed business and switches, improve handover success rate.

Fig. 7 is business switch method embodiment five signaling process figure of the present invention, and as shown in Figure 7, the method comprises:

Measurement report is sent to eUTRAN by step 501, UE;

Step 502, eUTRAN send " Handover Required " message informing source MME, carry " Source to Target Transparent Container " and " SRVCC indication " parameter in message;

Step 503a, source MME judge and have voice bearer and non-voice carrying according to QCI parameter, and " SRVCC indication " indication information sending according to eUTRAN, and target side network is not supported DTM or PSHO ability, source MME sends " Forward relocation Req " message to MSC server, in message, carry VDN, MSISDN, " Source to Target TransparentContainer ", " MM Context " and " Handover number " parameter.Wherein " Handovernumber " parameter is handover request quantity mark, is that source MME is used for the current message of only having one " CS relocation " of notification target side RNS, only has a handover request, does not have " PSrelocation ".

Step 503b, MSC server send " Prepare HO Req " message to target side MSC, in message, carry " Handover number " parameter and be used for that notification target side RNS is current only has one " CSrelocation ", only have a handover request, do not have " PS relocation ".

Step 503c, target side MSC initiate " CS relocation " flow process; Target side MSC sends " Relocation Request " message, carries " Source to Target Transparent Container " and " Handover number " parameter to target side RNS.Target side RNS receives after this information, knows to only have " CS relocation " according to " Handover number ", and Resources allocation is proceeded follow-up " CS relocation " flow process immediately;

Step 504a, target side RNS send " Relocation Request Acknowledge " message, carry " Target to Source Transparent Container " to target side MSC;

Step 504b, target side MSC send " Prepare Handover Response " message to MSC server;

Step 504c, the circuit of setting up between target side MSC and the MGW of MSC server association connect;

Step 505, MSC server are initiated to the territory switching in IMS territory, upgrade access leg, and now descending VOIP packet forwards from CS access leg;

Step 506, MSC server send " Forward Relocation Response " and carry " Targetto Source Transparent Container " cell to source MME;

Step 507, synchronous two handover request of source MME, send " Handover Command " message to eUTRAN, carries " Target to Source Transparent Container " in message;

Step 508, eUTRAN send " Handover from eUTRAN Command " message and, to UE, impel UE to be switched to aiming field;

Step 509, UE are switched to aiming field, and switching completes.

The method that the present embodiment provides and last embodiment are similar, all the number of handovers that existed to target side RNS mono-cell instruction current system by source MME, difference is in last embodiment to bring target side RNS during source MME is packaged in this indication information " Source to Target Transparent Container ", and the present embodiment source MME sends target side RNS by an independent cell to from source MME, in the business switch method that the present embodiment provides, when the terminal of carrying out SRVCC business is switched to target side network by source network, the handover request quantity mark that target side RNS can send according to source MME, for different switchings, distribute corresponding Internet resources, avoid occurring Resource Allocation in Networks mistake, thereby ensure that terminal is successfully completed business and switches, improve handover success rate.

Send after handover request to target side network at source access network, if switching, current business has two handover request, target side network can be unified to coordinate for terminal distribution Internet resources after two handover request of reception, Fig. 8 is resource allocation methods embodiment mono-flow chart of the present invention, as shown in Figure 8, the method comprises:

Step 600, target side access network receiving target side MSC or target side SGSN handover request that send, that initiated by source access network, described handover request comprises handover request quantity mark;

Source access network can adopt above-mentioned implementation in the handover request that sends to target side network, to carry handover request quantity mark, and can indicating target side access network to be GERAN or UTRAN will receive and the quantity of handover request described handover request quantity mark.Target side MSC sends CS handover request to GERAN or UTRAN, send PS handover request, and handover request is all initiated by target side SGSN to GERAN or UTRAN by source access network.

Step 601, target side access network obtains the quantity information of the handover request that will receive according to described handover request quantity mark, be terminal distribution Internet resources.

If target side access network GERAN or UTRAN learn two handover request of reception according to handover request quantity mark, GERAN or UTRAN wait for and receive after the handover request of another transmission in target side MSC and target side SGSN, for described terminal unified distribution Internet resources, that is to say when GERAN or UTRAN are by the handover request quantity mark in the handover request first receiving, when having learnt after two handover request, wait for and receive a rear handover request, and after a handover request, unify to coordinate as terminal distribution Internet resources after receiving.Wherein two received handover request of GERAN or UTRAN are to comprise target side access network receiving target side MSC terminal that send, that initiated by the source network handover request that enterprising industry business is switched in CS territory from described source network to described target side network, and target side network receiving target side SGSN terminal that send, that initiated by the source network handover request that enterprising industry business is switched in PS territory from source network to target side network.

If target side access network is learnt and will be received a handover request according to handover request quantity mark, target side access network is directly described terminal distribution Internet resources, that is to say when GERAN or UTRAN are by the handover request quantity mark in the handover request receiving, only having after a handover request when learning, is directly terminal distribution Internet resources.

In the resource allocation methods that the present embodiment provides, when the terminal of carrying out SRVCC business is switched to target side network by source network, target side RNS can identify according to handover request quantity, for different switchings, distribute corresponding Internet resources, avoid occurring Resource Allocation in Networks mistake, thereby ensure that terminal is successfully completed business and switches, improve handover success rate.

Fig. 9 is resource allocation methods embodiment bis-flow charts of the present invention, and as shown in Figure 9, the method comprises:

Step 700, target side access network, successively receiving after target side mobile switching centre and target side GPRS serving GPRS support node handover request that send, that initiated by source access network, is distributed unitedly Internet resources according to receive two handover request by holding;

In the time that terminal will be carried out the business switching from source network to target side network, source access network is initiated handover request, and send CS handover request and PS handover request to target side network respectively via target MSC and target SGSN, certainly the time of these two handover request arrival target side access network GERAN or UTRAN inconsistent, successively arrive.When GERAN or UTRAN receive after two handover request, be terminal unified distribution Internet resources according to handover request.

Step 701, target side access network to after the handover request that receives respond and return response message, described response message comprises resource information sign.

GERAN or UTRAN receive after a handover request, be its allocation of network resources immediately, and receive Article 2 handover request according to pre-conditioned wait, after the rear handover request of reception, GERAN or UTRAN will be in responding this handover request, in response message, increase described resource information sign, this resource information sign is for notifying its received response message that carries resource information sign of source MME to comprise that target side network is the network resource information of described terminal unified distribution.Resource information sign can adopt various ways to carry, for example target side access network to after the handover request that receives respond and return response message, described response message comprises transmission container parameter, and described resource information sign is stored in the newly-increased cell of transmission container parameter; Can also be target side access network to after the handover request that receives respond and return response message, described response message comprises transmission container parameter and described resource information sign.And GERAN or UTRAN be that the network resource information of terminal unified distribution can be stored in described transmission container parameter, bring source network.

When response message turns back to source MME, the response message that source MME receiving target side network returns, and judge in response message, whether to comprise resource information sign, send switching command message if having to source access network eUTRAN, described switching command message is included as the unified allocation of network resources information of described terminal; The response message that source MME receiving target side network returns, and judge in response message whether comprise resource information sign, if do not abandon this response message, and wait for next bar response information that target side network returns.Be in particular and receive after a bar response information as source MME, if find, this response message comprises resource information sign, think that this bar response information is the up-to-date response of target side network to handover request, and comprising there being the network resource information that the required target side network of source network is terminal distribution, and send switching command message to source access network; If current received response message comprises resource information sign, source MME abandons this bar response information, and waits for the rear bar response information that receiving target side network sends.

Figure 10 is resource allocation methods embodiment tri-signaling process figure of the present invention, and as shown in figure 10, the method comprises:

Step 801, UE send measurement report to source connecting system eUTRAN;

Step 802, eUTRAN send " Handover Required " message informing source MME, carry " Source to Target Transparent Container " and " SRVCC indication " parameter in message;

Step 803a, source MME distinguish voice bearer and non-voice carrying according to QCI parameter, and " SRVCC indication " indication information sending according to eUTRAN sends " Forward relocationReq " message to MSC server, in message, carry VDN, MSISDN, " Source to TargetTransparent Container " and " MM Context " parameter;

Step 803b, MSC server send " Prepare HO Req " message to target side MSC;

Step 803c, target side MSC initiate " CS relocation " flow process; Target side MSC sends " Relocation Request " message, and parameter is to target side RNS to carry " Source to Target Transparent Container ", and target side RNS distributes CS Internet resources immediately;

Step 804a, source MME send " Forward Relocation Req " message to target side SGSN, initiate " PS reloction ", carry " Source to Target Transparent Container " and " MM Context " in message;

Step 804b, target side SGSN send " Relocation Request " message to target side RNS, carry " Source to Target Transparent Container " in message, and target side RNS distributes PS Internet resources immediately;

It should be noted, step 803a and step 804a there is no sequencing, and for step 803c and step 804b, no matter target side RNS first receives " CS relocation req " still " PS relocationreq ", for latter one " Relocation Request ", target side RNS can be in conjunction with " CS relocation " and " PS relocation " unified distribution resource, and in packing " Target to Source TransparentContainer ", " Updated " mark of increase is resource information sign, represent the Internet resources of this information with two handover request,

Step 805a, target side RNS send " Relocation Request Acknowledge ", carry " Target to Source Transparent Container " to target side SGSN;

Step 805b, target SGSN send " Forward Relocation Response " message, carry " Target to Source Transparent Container " message to source MME;

Step 806a, target side RNS send " Relocation Request Acknowledge " message, carry " Target to Source Transparent Container " to target side MSC;

Step 806b, Target MSC send " Prepare Handover Response " message to MSCServer.

Step 806c, the circuit of setting up between target side MSC and the MGW of MSC server association connect;

Step 807, MSC server are initiated to the territory switching in IMS territory, upgrade access leg, and now descending VOIP packet forwards from CS access leg;

Step 808, MSC server send " Forward Relocation Response ", carry " Targetto Source Transparent Container " cell to source MME;

Step 809, source MME are owing to having sent before two handover request, so message that source MME can wait for up-to-date " Forward Relocation Rsp " is the message bag that comprises " Updated " flag in " Target to Source TransparentContainer " cell, receive after up-to-date " ForwardRelocation Rsp ", source MME sends " Handover Command " message to source eUTRAN, carries " Target to Source Transparent Container " parameter in message; If do not comprise " Updated " flag in " Forward Reloation Rsp " message of receiving, source MME can abandon this message, continues to wait for up-to-date message bag;

Step 8010, eUTRAN send " Handover from eUTRAN Command " message and, to UE, impel UE to be switched to aiming field;

Step 8011, UE are switched to aiming field, and switching completes.

In another resource allocation methods embodiment provided by the invention, UE is in the time occurring eUTRAN to GERAN or UTRAN switching, if there is " CS relocation " and " PS relocation " in source network simultaneously, target side RNS is receiving after second handover request, target side RNS meeting coordinated allocation CS and PS resource, and described " Updated " mark is stored in " Relocation Request Ack " message as an individual cells, target side network by this information band to source MME, this renewal mark represents that carrying information entrained in the message of this mark is the resource information that combines " CSrelocation " and " PS relocation ".Source MME is sending after two " Forward relocation req " message, and message that source MME can wait for up-to-date " ForwardRelocation Rsp " has been carried " Updated " mark, and information is sent to source eUTRAN; If source MME receives that not comprising " Updated " in " Forward Relocation Rsp " message of receiving at first identifies, abandon this message bag, wait has " Forward Relocation Rsp " message of " Updated " mark, otherwise, if source MME receives that comprising " Updated " in " ForwardRelocation Rsp " message identifies at first, source MME directly sends " HOCommand " message to source network eUTRAN, follow-up another " ForwardRelocation Rsp " message of receiving this UE, source MME can discard.

Resource allocation methods embodiment provided by the invention, when the terminal of carrying out SRVCC business is switched to target side network by source network, target side RNS increases resource information sign in the response message of the rear handover request receiving, in order to represent that this information combines as terminal unified distribution Internet resources; Whether source MME comprises resource information sign according to response message again and response message is screened, and ensures that for terminal provides target side network be the Internet resources of its distribution, ensures carrying out smoothly of terminal traffic switching, guarantees business handover success.

One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, aforesaid program can be stored in a computer read/write memory medium, this program, in the time carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.

Figure 11 is a kind of apparatus for network node example structure of the present invention schematic diagram, as shown in figure 11, this apparatus for network node comprises the first judge module 11 and the first sending module 12, wherein the first judge module 11 is for knowing that terminal will carry out business from source network to target side network switches, judge the support information of professional ability and the support information of dual-transfer mode ability or data field switching capability of described target side network, and the bearer types of the business that will switch existence; The first sending module 12 is for according to the judged result of described the first judge module, send the first handover request message to described target side network, described the first handover request message carries handover request quantity mark, described handover request quantity mark be used to indicate described target side network receive with the handover request of described handover request quantity mark respective amount after be described terminal unified distribution Internet resources.

Terminal is carried out in the process of business in eUTRAN, will carry out at any time the measurement of network signal and send measurement report to eUTRAN, in eUTRAN, apparatus for network node learns that according to the measurement report of the terminal that receives terminal will carry out being switched to from source network the business of target side network and switch; After learning and will switching, judge by the first judge module 11 whether target side network supports SRVCC professional ability, and whether target side network supports DTM or PSHO ability, judge according to QCI parameter whether this business exists voice bearer and non-voice carrying simultaneously again, then the first sending module 12 is correspondingly processed according to the judged result of the first judge module 11, do not support SRVCC ability if judge target side network, and target side network support PSHO, can the current switching of notification target side RNS only there is a handover request in eUTRAN; If judge target side network support SRVCC ability, and target side network support DTM/PSHO ability, but source network eUTRAN network only has voice bearer by the judgement of QCI parameter or only has other non-voice carryings, and now apparatus for network node also can the current switching of notification target side RNS only have a handover request in handover request; If judge target side network support SRVCC ability, but do not support DTM/PSHO ability, and eUTRAN only has non-voice carrying by the judgement of QCI parameter, now can not switch.

The first sending module 12 sends handover request quantity mark can adopt various ways, specifically realize multiple send mode corresponding to multiple function sub-modules, the first sending module 12 can comprise with any one or its combination in lower module, comprise the first transmission submodule 121, second sends submodule 122 and the 3rd sends submodule 123, wherein first send submodule 121 for send described the first handover request message to described target side network, described the first handoff request message is drawn together transmission container parameter, described handover request quantity mark is stored in the newly-increased cell of described transmission container parameter, second sends submodule 122 for send described the first handover request message to described target side network, described the first handoff request message is drawn together transmission container parameter, and described handover request quantity mark is stored in the interface linking number cell in described transmission container parameter, the 3rd sends submodule 123 for send described the first handover request message to described target side network, and described the first handoff request message is drawn together transmission container parameter and described handover request quantity mark.As from the foregoing, it is that " Source to Target Transparent Container " parameter is carried by transmission container parameter that the first transmission submodule 121 and second sends submodule 122, both can be to increase therein a cell newly to carry, can be also to carry by a cell in original parameter.The 3rd send submodule 123 be using handover request quantity mark as one independently cell send together with transmission container parameter.

The apparatus for network node that the present embodiment provides can be the eNodeB in source access network, when the terminal of carrying out SRVCC business is switched to target side network by source network, eNodeB sends the handover request of the handover request quantity mark carrying to target side RNS by source MME, target side RNS can be according to this handover request quantity mark, for different switchings, for example only there is " CS relocation " or only have " PS relocation " or have the type such as " CS relocation " and " PS relocation " simultaneously, distribute corresponding Internet resources, avoid occurring Resource Allocation in Networks mistake, thereby ensure that terminal is successfully completed business and switches, improve handover success rate.

Figure 12 is a kind of mobile management entity device example structure of the present invention schematic diagram, as shown in figure 12, this mobile management entity device comprises the second judge module 21 and the second sending module 22, wherein the second judge module 21 is for receiving after the second handover request message of source access network transmission, judge the support information of professional ability and the support information of dual-transfer mode ability or data field switching capability of described target side network, and the bearer types of the business that will switch existence; The second sending module 22 is for according to the judged result of described the second judge module, send the 3rd handover request message to described target side network, described the 3rd handover request message carries handover request quantity mark, and described handover request quantity mark is used to indicate described target side network and distributes Internet resources unitedly for terminal receiving after identifying corresponding handover request with described handover request quantity.

Particularly, terminal is carried out in the process of SRVCC business in eUTRAN, will carry out at any time the measurement of network signal and send measurement report as the solicited message that will carry out business switching to eUTRAN, eUTRAN learns that according to the measurement report of the terminal that receives terminal will carry out being switched to from source network the business of target side network and switch; After learning and will switching, eUTRAN will send the second handover request message to source MME.

Source MME receives the business that eUTRAN will carry out being switched to from source network target side network according to terminal and switches the second handover request message sending, if the second judge module 21 judgements learn that target side network has corresponding professional ability, and there are DTM or PSHO ability, and according to quality of service type mark QCI, judgement learns that the business that will switch exists voice bearer and non-voice carrying simultaneously, and the second sending module 22 sends the first handover request message to GERAN or UTRAN.Source MME has included handover request quantity mark in the forwarding handover request sending to target side MSC and target side SGSN respectively, that is to say and in the process that switch in the CS territory of initiating and switch in PS territory, all carry handover request quantity mark, target side network can learn from two handover request that receive that current business switching needs the handover request quantity information receiving.

The second sending module 22 sends handover request quantity mark can adopt various ways, specifically realize multiple send mode corresponding to multiple function sub-modules, the second sending module 22 can comprise with any one or its combination in lower module and comprises that the 4th sends submodule 221, the 5th sends submodule 222 and the 6th sends submodule 223, wherein the 4th send submodule 221 for receiving after described the second handover request message, described handover request quantity mark is stored in cell newly-increased in the transmission container parameter that described the second handoff request message draws together, send the 3rd handover request message to described target side network, described the 3rd handoff request message is drawn together the transmission container parameter that stores described handover request quantity mark, the 5th sends submodule 222 for receiving after described the second handover request message, described handover request quantity mark is stored in the interface linking number cell in the transmission container parameter that described the second handoff request message draws together, send the 3rd handover request message to described target side network, described the 3rd handoff request message is drawn together the transmission container parameter that stores described handover request quantity mark, the 6th sends submodule 223 for receiving after described the second handover request message, send the 3rd handover request message to described target side network, described the 3rd handoff request message is drawn together the transmission container parameter that described handover request quantity identifies and described the second handover request message comprises.As from the foregoing, it is that " Source to Target Transparent Container " parameter is carried by transmission container parameter that the 4th transmission submodule 221 and the 5th sends submodule 222, both can be to increase therein a cell newly to carry, can be also to carry by a cell in original parameter.The 6th send submodule 223 be using handover request quantity mark as one independently cell send together with transmission container parameter.

The indication information that provides handover request quantity mark by source MME in the present embodiment is informed that target side RNS is current and is had multiple handover request, when terminal is switched to target side network by source network, the handover request quantity mark that target side RNS can send according to source MME, for different switchings, distribute corresponding Internet resources, avoid occurring Resource Allocation in Networks mistake, thereby ensure that terminal is successfully completed business and switches, improve handover success rate.

Figure 13 is the another kind of apparatus for network node example structure of the present invention schematic diagram, as shown in figure 13, this apparatus for network node comprises the first receiver module 31 and first resource distribution module 32, wherein the first receiver module 31 is for the handover request of receiving target side shifting switching center or the business switching that send, that initiated by source access network of target side GPRS serving GPRS support node, and described handover request comprises handover request quantity mark; First resource distribution module 32, for obtain the quantity information of the handover request that will receive according to described handover request quantity mark, is terminal unified distribution Internet resources.

Particularly, be arranged at the first receiver module 31 in the apparatus for network node on target side network, after the first arrival apparatus for network node handover request that receiving target side MSC or target side SGSN send, get the handover request quantity mark in handover request, and learn that according to handover request quantity mark current business switches the quantity of the handover request that will receive by first resource distribution module 32, if first resource distribution module 32 is learnt two handover request of reception according to handover request quantity mark, will wait for and receive after the handover request of another transmission in target side MSC and target side SGSN, for terminal unified distribution Internet resources.If target side network identifies and learns and will receive a handover request according to handover request quantity, first resource distribution module 32 is directly terminal distribution Internet resources.Above-mentioned situation can be respectively by first resource distribution module 32 for learning after two handover request of reception according to described handover request quantity mark, after described the first receiver module receives the handover request of another transmission in described target side mobile switching centre and described target side GPRS serving GPRS support node, for the first distribution sub module 321 of described terminal distribution Internet resources with for learning and will receive after a handover request according to described handover request quantity mark, directly for the second distribution sub module 322 of described terminal distribution Internet resources completes.

In the apparatus for network node that the present embodiment provides, when terminal is switched to target side network by source network, apparatus for network node can identify according to handover request quantity, for different switchings, distribute corresponding Internet resources, avoid occurring Resource Allocation in Networks mistake, thereby ensure that terminal is successfully completed business and switches, improve handover success rate.

Figure 14 is another apparatus for network node example structure schematic diagram of the present invention, as shown in figure 14, this apparatus for network node comprises the second receiver module 41, Secondary resource distribution module 42 and respond module 43, and wherein the second receiver module 41 is for the handover request of receiving target side shifting switching center and the business switching that send, that initiated by source access network of target side GPRS serving GPRS support node; After the handover request that Secondary resource distribution module 42 is switched for the business that receives target side mobile switching centre and the transmission of target side GPRS serving GPRS support node in described the second receiver module priority, be described terminal unified distribution Internet resources; Respond module 43 for to after the handover request that receives respond and return response message, described response message comprises resource information sign, and described resource information sign comprises that for its received response message that carries described resource information sign of notification source side shifting management entity described target side network is the network resource information of described terminal unified distribution.

Particularly, in the time that terminal will be carried out the business switching from source network to target side network, source access network is initiated handover request, and send CS handover request and PS handover request to target side network respectively via target side MSC and target side SGSN, certainly the time of these two handover request arrival target side access network GERAN or UTRAN inconsistent, successively arrive.When the second receiver module 41 that is positioned at the apparatus for network node on GERAN or UTRAN receives after Article 1 handover request, will be Internet resources corresponding to described terminal distribution according to described handover request immediately; And receiving after two handover request, then be that terminal is distributed Internet resources unitedly by Secondary resource distribution module 42 according to handover request, for example comprise CS resource and PS resource.Respond module 43 increases resource information sign in the response message that the handover request finally receiving is responded, this bar response information of notice source network is the up-to-date response message of target side network, and source network carries out follow-up terminal traffic switching flow after receiving this bar response information.Respond module 43 is carried resource information sign in response message can adopt various ways, respond module 43 comprises the submodule of corresponding function, for example comprise for to after the handover request that receives respond and return response message, described response message comprises transmission container parameter, described resource information sign be stored in first in the newly-increased cell of transmission container parameter response submodule 431 and for to after the handover request that receives respond and return response message, described response message comprises the second response submodule 432 of transmission container parameter and described resource information sign.

The apparatus for network node that the embodiment of the present invention provides, when terminal is switched to target side network by source network, this apparatus for network node increases resource information sign in the response message of the rear handover request receiving, in order to represent that this information combines as terminal distribution internet resource; Whether source MME comprises resource information sign according to response message again and response message is screened, and ensures that for terminal provides target side network be the Internet resources of its distribution, ensures carrying out smoothly of terminal traffic switching, guarantees business handover success.

Figure 15 is the another kind of mobile management entity device example structure of the present invention figure, as shown in figure 15, this mobile management entity device comprises the 3rd receiver module 51, the 3rd judge module 52 and processing module 53, the response message of the handover request that the described mobile management entity device that wherein the 3rd receiver module 51 returns for receiving target side network sends; The 3rd judge module 52 is for judging whether described response message comprises resource information sign, and described resource information sign is for notifying its received response message that carries described resource information sign of described Mobility Management Entity to comprise that described target side network is the network resource information of terminal unified distribution; If processing module 53 judges that for described the 3rd judge module described response message comprises described resource information sign, send switching command message to source access network, described switching command message is included as the network resource information of described terminal unified distribution.

Particularly, in the time of terminal carrying out service, the MME being positioned on source network sends after handover request to target side network, receive by the 3rd receiver module 51 in MME the response message of returning, then judge by the 3rd judge module 52 whether the response message receiving includes resource information sign, when the resource information sign that includes target side network and return, send switching command message by processing module 53 to source apparatus for network node, carry the Internet resources that target network network is terminal distribution, the business that completes terminal is switched.Do not comprise resource information sign if the 3rd judge module 52 judges in received response message, processing module 53 is abandoned this response message, and waits for next bar response information that receiving target side network returns.

The mobile management entity device that the embodiment of the present invention provides, in the time that terminal is switched to target side network by source network, in the response message that MME can return according to the target side network receiving, whether comprise resource information sign and response message is screened, ensure to be the Internet resources of its distribution for terminal provides target side network, ensure carrying out smoothly of terminal traffic switching, guarantee business handover success.

Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; 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

1. a business switch method, it is characterized in that comprising: source access network is the bearer types with the business that will switch according to the ability of target side network, send the first handover request message to described target side network, described the first handover request message carries handover request quantity mark, described handover request quantity mark be used to indicate described target side network receive with the handover request of described handover request quantity mark respective amount after distribute Internet resources unitedly for terminal;

Described according to the bearer types of the ability of described target side network and the business that will switch, sending the first handoff request message to described target side network draws together: according to the support information of the support information of the professional ability of described target side network and dual-transfer mode ability or data field switching capability, and the bearer types of the business that will switch, send the first handover request message to described target side network.

2. business switch method according to claim 1, it is characterized in that described according to the support information of the support information of the professional ability of described target side network and dual-transfer mode ability or data field switching capability, and the bearer types of the business that will switch, send the first handoff request message to described target side network and draw together:

If described target side network has corresponding professional ability, and there are dual-transfer mode ability or data field switching capability, and learn that according to quality of service type mark the business that will switch exists voice bearer and non-voice carrying simultaneously, send the first handover request message to described target side network, described the first handover request message carries handover request quantity mark, and it is described terminal unified distribution Internet resources receiving after two handover request corresponding with described handover request quantity mark that described handover request quantity mark is used to indicate described target side network; Or

If described target side network has dual-transfer mode ability or data field switching capability, but without corresponding professional ability, send the first handover request message to described target side network, described the first handover request message carries handover request quantity mark, and it is described terminal distribution Internet resources receiving after a handover request corresponding with described handover request quantity mark that described handover request quantity mark is used to indicate described target side network; Or

If described target side network has corresponding professional ability, and there are dual-transfer mode ability or data field switching capability, and learn that according to described quality of service type mark the business that will switch exists voice bearer or non-voice carrying, send the first handover request message to described target side network, described the first handover request message carries handover request quantity mark, and it is described terminal distribution Internet resources receiving after a handover request corresponding with described handover request quantity mark that described handover request quantity mark is used to indicate described target side network.

3. business switch method according to claim 2, is characterized in that two handover request corresponding to described and described handover request quantity mark comprise: circuit domain handover request and data field handover request.

4. according to the arbitrary business switch method described in claims 1 to 3, it is characterized in that describedly sending the first handover request message to described target side network, described the first handover request message carries handover request quantity mark and comprises:

Described source access network sends described the first handover request message to described target side network, and described the first handoff request message is drawn together transmission container parameter, and described handover request quantity mark is stored in the newly-increased cell of described transmission container parameter; Or

Described source access network sends described the first handover request message to described target side network, and described the first handoff request message is drawn together transmission container parameter, and described handover request quantity mark is stored in the interface linking number cell in described transmission container parameter; Or

Described source access network sends described the first handover request message to described target side network, and described the first handoff request message is drawn together transmission container parameter and described handover request quantity mark.

5. a business switch method, it is characterized in that comprising: after the second handover request message that source Mobility Management Entity reception sources side access network sends, bearer types according to the ability of target side network with the business that will switch, send the 3rd handover request message to described target side network, described the 3rd handover request message carries handover request quantity mark, described handover request quantity mark be used to indicate described target side network receive with the handover request of described handover request quantity mark respective amount after distribute Internet resources unitedly for terminal;

Described according to the bearer types of the ability of described target side network and the business that will switch, sending the 3rd handoff request message to described target side network draws together: according to the support information of the support information of the professional ability of described target side network and dual-transfer mode ability or data field switching capability, and the bearer types of the business that will switch, send the 3rd handover request message to described target side network.

6. business switch method according to claim 5, it is characterized in that described according to the support information of the support information of the professional ability of described target side network and dual-transfer mode ability or data field switching capability, and the bearer types of the business that will switch, send the 3rd handoff request message to described target side network and draw together:

If described target side network has corresponding professional ability, and there are dual-transfer mode ability or data field switching capability, and learn that according to quality of service type mark the business that will switch exists voice bearer and non-voice carrying simultaneously, send the 3rd handover request message to described target side network, described the 3rd handover request message carries handover request quantity mark, and it is described terminal unified distribution Internet resources receiving after two handover request corresponding with described handover request quantity mark that described handover request quantity mark is used to indicate described target side network; Or

If described target side network has dual-transfer mode ability or data field switching capability, but without corresponding professional ability, send the 3rd handover request message to described target side network, described the 3rd handover request message carries handover request quantity mark, and it is described terminal distribution Internet resources receiving after a handover request corresponding with described handover request quantity mark that described handover request quantity mark is used to indicate described target side network; Or

If described target side network has corresponding professional ability, and there are dual-transfer mode ability or data field switching capability, and learn that according to described quality of service type mark the business that will switch exists voice bearer or non-voice carrying, send the 3rd handover request message to described target side network, described the 3rd handover request message carries handover request quantity mark, and it is described terminal distribution Internet resources receiving after a handover request corresponding with described handover request quantity mark that described handover request quantity mark is used to indicate described target side network.

7. business switch method according to claim 6, is characterized in that two handover request corresponding to described and described handover request quantity mark comprise circuit domain handover request and data field handover request.

8. according to the business switch method described in claim 6 or 7, it is characterized in that described method also comprises:

Described the second handoff request message is drawn together transmission container parameter, described source Mobility Management Entity receives after described the second handover request message, described handover request quantity mark is stored in cell newly-increased in described transmission container parameter, send the 3rd handover request message to described target side network, described the 3rd handoff request message is drawn together the transmission container parameter that stores described handover request quantity mark; Or

Described the second handoff request message is drawn together transmission container parameter, described source Mobility Management Entity receives after described the second handover request message, described handover request quantity mark is stored in described transmission container parameter in interface linking number cell, send the 3rd handover request message to described target side network, described the 3rd handoff request message is drawn together the transmission container parameter that stores described handover request quantity mark; Or

Described the second handoff request message is drawn together transmission container parameter, described source Mobility Management Entity receives after described the second handover request message, send the 3rd handover request message to described target side network, described the 3rd handoff request message is drawn together described handover request quantity mark and described transmission container parameter.

9. a Resource Allocation in Networks method, is characterized in that comprising:

Target side access network receiving target side shifting switching center or target side GPRS serving GPRS support node handover request that send, that initiated by source access network, described handover request comprises handover request quantity mark; Described handover request is according to the support information of the support information of the professional ability of described target side network and dual-transfer mode ability or data field switching capability, and the request of the bearer types of the business that will switch transmission;

10. Resource Allocation in Networks method according to claim 9, is characterized in that described target side access network obtains the quantity information of the handover request that will receive according to described handover request quantity mark, for terminal unified distribution Internet resources comprise:

If described target side access network is learnt two handover request of reception according to described handover request quantity mark, described target side access network, receiving after the handover request of another transmission in described target side mobile switching centre and described target side GPRS serving GPRS support node, is described terminal unified distribution Internet resources; Or

If described target side access network identifies and learns and will receive a handover request according to described handover request quantity, described target side network is directly described terminal distribution Internet resources.

11. according to the Resource Allocation in Networks method described in claim 9 or 10, it is characterized in that described target side access network receiving target side shifting switching center or target side GPRS serving GPRS support node handover request that send, that initiated by source access network comprises:

Described target side access network receives the described target side mobile switching centre handover request of switching in the enterprising industry business of circuit domain from described source network to described target side network that send, that initiated by source access network; Or

Described target side access network receives the handover request of switching in the enterprising industry business of data field from described source network to described target side network that described target side GPRS serving GPRS support node sends, initiated by source access network.

12. 1 kinds of Resource Allocation in Networks methods, is characterized in that comprising:

13. Resource Allocation in Networks methods according to claim 12, it is characterized in that described target side access network to after the handover request that receives respond and return response message, described response message comprises that resource information sign comprises:

Described target side access network to after the handover request that receives respond and return response message, described response message comprises transmission container parameter, described resource information sign is stored in the newly-increased cell of transmission container parameter; Or

Described target side access network to after the handover request that receives respond and return response message, described response message comprises transmission container parameter and described resource information sign.

14. according to the Resource Allocation in Networks method described in claim 12 or 13, it is characterized in that described method also comprises:

Described source Mobility Management Entity receives the response message that described target side network returns, and judge in described response message, whether to comprise described resource information sign, send switching command message if having to described source access network, described switching command message is included as the network resource information of described terminal unified distribution.

15. Resource Allocation in Networks methods according to claim 14, is characterized in that described method also comprises:

Described source Mobility Management Entity receives the response message that described target side network returns, and judge in described response message, whether to comprise described resource information sign, if do not abandon this response message, and wait for next bar response information that described target side network returns.

16. 1 kinds of apparatus for network node, is characterized in that comprising:

17. apparatus for network node according to claim 16, is characterized in that described the first sending module comprises following any one or its combination:

First sends submodule, and for send described the first handover request message to described target side network, described the first handoff request message is drawn together transmission container parameter, and described handover request quantity mark is stored in the newly-increased cell of described transmission container parameter;

Second sends submodule, for sending described the first handover request message to described target side network, described the first handoff request message is drawn together transmission container parameter, and described handover request quantity mark is stored in the interface linking number cell in described transmission container parameter;

The 3rd sends submodule, and for send described the first handover request message to described target side network, described the first handoff request message is drawn together transmission container parameter and described handover request quantity mark.

18. 1 kinds of mobile management entity devices, is characterized in that comprising:

The second judge module, for receiving after the second handover request message of source access network transmission, judge the support information of professional ability and the support information of dual-transfer mode ability or data field switching capability of target side network, and the bearer types of the business that will switch existence;

19. mobile management entity devices according to claim 18, is characterized in that described the second sending module comprises following any one or its combination:

The 4th sends submodule, for receiving after described the second handover request message, described handover request quantity mark is stored in cell newly-increased in the transmission container parameter that described the second handoff request message draws together, send the 3rd handover request message to described target side network, described the 3rd handoff request message is drawn together the transmission container parameter that stores described handover request quantity mark;

The 5th sends submodule, for receiving after described the second handover request message, described handover request quantity mark is stored in the interface linking number cell in the transmission container parameter that described the second handoff request message draws together, send the 3rd handover request message to described target side network, described the 3rd handoff request message is drawn together the transmission container parameter that stores described handover request quantity mark;

The 6th sends submodule, for receiving after described the second handover request message, send the 3rd handover request message to described target side network, described the 3rd handoff request message is drawn together the transmission container parameter that described handover request quantity identifies and described the second handover request message comprises.

20. 1 kinds of apparatus for network node, is characterized in that comprising:

The first receiver module, for the handover request of receiving target side shifting switching center or the business switching that send, that initiated by source access network of target side GPRS serving GPRS support node, described handover request comprises handover request quantity mark; Described handover request is according to the support information of the support information of the professional ability of described target side network and dual-transfer mode ability or data field switching capability, and the request of the bearer types of the business that will switch transmission;

21. apparatus for network node according to claim 20, is characterized in that described first resource distribution module comprises:

The first distribution sub module, for learning after two handover request of reception according to described handover request quantity mark, after described the first receiver module receives the handover request of another transmission in described target side mobile switching centre and described target side GPRS serving GPRS support node, be described terminal unified distribution Internet resources; Or

The second distribution sub module, for learning and will receive after a handover request according to described handover request quantity mark, is directly described terminal distribution Internet resources.

22. 1 kinds of apparatus for network node, is characterized in that comprising:

Secondary resource distribution module is terminal unified distribution Internet resources after the handover request of switching for the business that receives target side mobile switching centre and the transmission of target side GPRS serving GPRS support node in described the second receiver module priority;

23. apparatus for network node according to claim 22, is characterized in that described respond module comprises:

The first response submodule, for to after the handover request that receives respond and return response message, described response message comprises transmission container parameter, described resource information sign is stored in the newly-increased cell of transmission container parameter; Or

The second response submodule, for to after the handover request that receives respond and return response message, described response message comprises transmission container parameter and described resource information sign.

24. 1 kinds of mobile management entity devices, is characterized in that comprising:

25. mobile management entity devices according to claim 24, it is characterized in that described processing module also for, if judging, described the 3rd judge module in described response message, do not comprise described resource information sign, abandon described response message, and wait for next bar response information that described target side network returns.