CN101686522B - Method and device for processing routing optimization bearing - Google Patents

Method and device for processing routing optimization bearing Download PDF

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Publication number
CN101686522B
CN101686522B CN2008102114567A CN200810211456A CN101686522B CN 101686522 B CN101686522 B CN 101686522B CN 2008102114567 A CN2008102114567 A CN 2008102114567A CN 200810211456 A CN200810211456 A CN 200810211456A CN 101686522 B CN101686522 B CN 101686522B
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district
routing optimality
source
routing
target
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CN101686522A (en
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胡伟华
张进
吴问付
朱志明
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN2008102114567A priority Critical patent/CN101686522B/en
Priority to PCT/CN2009/073880 priority patent/WO2010031317A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H04W8/082—Mobility data transfer for traffic bypassing of mobility servers, e.g. location registers, home PLMNs or home agents
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]

Abstract

The embodiment of the invention provides a method for processing routing optimization bearing, which is suitable for a scene in which a terminal is moved from a routing optimization area of a source visiting place to a target routing optimization area and establishes routing optimization bearing in the routing optimization area of the source visiting place. The method comprises the following steps: determining that the terminal is moved from the routing optimization area of the source visiting place to the target routing optimization area or obtaining a notification of deleting the routing optimization bearing; and deleting the routing optimization bearing. The embodiment of the invention also provides a device for processing the routing optimization bearing and a regional communication network. In the embodiment of the invention, the routing optimization bearing can be deleted if a condition that the terminal establishing the routing optimization bearing in the routing optimization area of the source visiting place is moved from the routing optimization area of the source visiting place to the target routing optimization area is determined, so that service data transmission crossing the routing optimization areas can not occur, thereby saving resources between the routing optimization areas.

Description

The processing method of routing optimization bearing, device
Technical field
The present invention relates to wireless communication technology, relate in particular to the processing method of routing optimization bearing.
Background technology
At present, a public land mobile network (PLMN, Public Land Mobile Network) generally includes at least one Radio Access Network and at least one core net.Connect by backbone transport networks between the PLMN.A network element in the said core net provides the service that inserts external packet data network (PDN, Packet DataNetwork).Said PDN can be the packet data network of Internet, virtual private networks (VPN, Virtual PrivateNetwork), IP Multimedia System forms such as (IMS, IP Multimedia Subsystem).PDN is used to provide IP data services such as web page browsing (WWW), Internet Protocol telephone (VoIP, Voice overIP), instant messaging (IM), Video service, data download service.Generally have different Freight Basis between the different PLMN, also different access services can be provided.If the scope of a PLMN is excessive, PLMN can be divided into a plurality of different zones again so, and each zone all comprises at least one Radio Access Network and at least one core net.Generally also have different Freight Basis between these zones, yet different access services can be provided.Also connect between these zones by backbone transport networks.Describe conveniently for hereinafter, will comprise that here the zone of at least one Radio Access Network and at least one core net is referred to as the routing optimality district.For example, a PLMN can be called a routing optimality district, and the above-mentioned zone that PLMN comprises also can be called a routing optimality district, that is to say, a PLMN can comprise at least one routing optimality district.The mobile network institute region covered that the routing optimality district can be a country also can be zone that comprises wireless access network and core net among the mobile network of a country.
In the prior art; When a terminal in the routing optimality district of its ownership (generally speaking; Ownership place is meant that the user who uses the terminal is signatory and open the place of the service of moving with operator) in when needing data service that use PDN provides; The carrying that is used for service data transmission can be set up in this terminal in the routing optimality district of its ownership, like this, this terminal just can be through service data transmission between this carrying and the PDN.When this terminal moves to another routing optimality district (being commonly referred to as routing optimality district, visit ground); If service data transmission between these terminal needs and the PDN; Under normal conditions; The carrying that is used for service data transmission through the core net in the core net in the wireless access network in routing optimality district, visit ground, routing optimality district, visit ground and ownership place routing optimality district can be set up in the terminal, and inserts PDN through the core net in ownership place routing optimality district.This carrying is called as the carrying of non-routing optimality.Between the routing optimality district, use backbone transport networks to link to each other usually.Generally, the cost of backbone transport networks is higher, and cost of use is expensive.When the data service that PDN provided that the core net in the routing optimality district from visit ground inserts need be used in the terminal; This terminal can only in routing optimality district, visit ground, set up be used for service data transmission routing optimization bearing (promptly; Insert PDN from the core net in routing optimality district, visit ground); Like this; This terminal just can through routing optimization bearing with from service data transmission between the PDN of the core net access in visit ground routing optimality district; The carrying of originally in the routing optimality district of its ownership, setting up comes and the routing optimality district service data transmission of its ownership and need not to re-use, and has saved the Internet resources of the backbone transport networks that connects each routing optimality district, and has reduced the rate that use the services of roaming of striding the routing optimality district.
Inventor of the present invention finds in realizing process of the present invention: in the prior art; When this terminal when this routing optimality district, visit ground moves to another routing optimality district; If routing optimization bearing has been set up in routing optimality district, said visit ground in this terminal; Then this terminal can switch to said another routing optimality district with the routing optimization bearing of original visit ground routing optimality district foundation; And this carrying is connected to routing optimality district, said visit ground through wireless access network, the core net in said another routing optimality district, and inserts the PDN service data transmission, will take the resource of the backbone transport networks between the routing optimality district like this; Particularly when the quantity at such terminal especially for a long time, the transfer resource bandwidth between the routing optimality district that takies will be big especially.
Summary of the invention
The embodiment of the invention provides the processing method of routing optimization bearing, the network element that the mobile management function is provided, device; In order to move to another routing optimality district when the terminal of in routing optimality district, a visit ground, having set up routing optimization bearing from routing optimality district, said visit ground and the terminal needs and PDN between during service data transmission, the resource between the saving routing optimality district.
A kind of processing method of routing optimization bearing; Be applicable to that the terminal moves to target routing optimality district from routing optimality district, visit ground, source and the scene that routing optimization bearing is arranged is created in said terminal in routing optimality district, visit ground, said source; Comprise: confirm that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source, perhaps obtains the notice of deletion routing optimization bearing; Delete said routing optimization bearing.
A kind of processing unit of routing optimization bearing; Be applicable to that the terminal moves to target routing optimality district from routing optimality district, visit ground, source and the scene that routing optimization bearing is arranged is created in said terminal in routing optimality district, visit ground, said source; Comprise: detecting unit is used for confirming that routing optimality district, visit ground moves to target routing optimality district from the source at the terminal; Carry processing unit, be used for after said detecting unit confirms that the terminal moves to target routing optimality district from routing optimality district, visit ground, source, deleting the routing optimization bearing that create in routing optimality district, visit ground, said source at said terminal.
A kind of processing unit of routing optimization bearing comprises: the information receiving and transmitting unit, be used for when the terminal when routing optimality district, visit ground, source moves to target routing optimality district, obtain the notice of deletion routing optimization bearing; Carry processing unit, be used for after said information receiving and transmitting unit obtains the notice of deletion routing optimization bearing, delete the routing optimization bearing that create in routing optimality district, visit ground, said source at said terminal.
In an embodiment of the present invention; If after confirming in routing optimality district, visit ground, source, to have set up the terminal of routing optimization bearing and moving to target routing optimality district from routing optimality district, visit ground, said source; Then can delete routing optimization bearing; So just can not stride the business data transmission in routing optimality district, thereby save the resource between the routing optimality district.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of processing method of a kind of routing optimization bearing of the embodiment of the invention;
Fig. 2 is the configuration diagram of evolvement network;
Fig. 3 is the network architecture sketch map of UMTS/GPRS;
Fig. 4 is a kind of structural representation with network element of mobile management function of the embodiment of the invention;
Fig. 5 has the structural representation of the network element of mobile management function for the another kind of the embodiment of the invention;
Fig. 6 is the flow chart of processing method of the another kind of routing optimization bearing of the embodiment of the invention;
Fig. 7 is a kind of structural representation with network element of creating the route bearing function of the embodiment of the invention;
Fig. 8 has the structural representation of the network element of creating the route bearing function for the another kind of the embodiment of the invention;
Fig. 9 is the flow chart of processing method of the another kind of routing optimization bearing of the embodiment of the invention;
Figure 10 has the structural representation of the network element of mobile management function for the another kind of the embodiment of the invention;
Figure 11 has the structural representation of the network element of mobile management function for the another kind of the embodiment of the invention;
Figure 12 is the flow chart of in striding the TAU flow process in routing optimality district, handling routing optimization bearing of first preferred embodiment of the present invention;
Figure 13 is the flow chart of in striding the Relocation flow process in routing optimality district, handling routing optimization bearing of first preferred embodiment of the present invention;
Figure 14 is the flow chart of in striding the TAU flow process in routing optimality district, handling routing optimization bearing of second preferred embodiment of the present invention;
Figure 15 is the flow chart of in striding the Relocation flow process in routing optimality district, handling routing optimization bearing of second preferred embodiment of the present invention;
Figure 16 is the flow chart of in striding the TAU flow process in routing optimality district, handling routing optimization bearing of the 3rd preferred embodiment of the present invention;
Figure 17 is the flow chart of in striding the Relocation flow process in routing optimality district, handling routing optimization bearing of the 3rd preferred embodiment of the present invention;
Figure 18 is the flow chart of in striding the TAU flow process in routing optimality district, handling routing optimization bearing of the 4th preferred embodiment of the present invention;
Figure 19 is the flow chart of in striding the Relocation flow process in routing optimality district, handling routing optimization bearing of the 4th preferred embodiment of the present invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
At first processing method and the device to a kind of routing optimization bearing of the embodiment of the invention describes.
A kind of processing method of routing optimization bearing; Be applicable to that the terminal moves to target routing optimality district from routing optimality district, visit ground, source and the scene that routing optimization bearing is arranged is created in said terminal in routing optimality district, visit ground, said source; Comprise: confirm that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source, perhaps obtains the notice of deletion routing optimization bearing; Delete said routing optimization bearing.
The establishment in the network element with mobile management function in routing optimality district, visit ground, said source, the network element with mobile management function in said target routing optimality district or routing optimality district, visit ground, said source has the network element of routing optimization bearing can confirm that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source; The establishment in the network element with mobile management function in routing optimality district, visit ground, said source, the network element with mobile management function in said target routing optimality district or routing optimality district, visit ground, said source has the network element of routing optimization bearing can delete said routing optimization bearing.
Here the network element with mobile management function that reaches routing optimality district, visit ground, source hereinafter described for example is MME or the SGSN of source PLMN; The network element with mobile management function in target routing optimality district for example is MME or the SGSN of target P LMN, and it for example is S-GW or the GGSN of source PLMN that the establishment in routing optimality district, visit ground, source has the network element of routing optimization bearing.
The network element with mobile management function in routing optimality district, visit ground, said source confirms that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source and specifically can comprise: the network element with mobile management function in routing optimality district, visit ground, said source upgrades in the position receives the flow process that target has the handoff request message that the network element of mobile management function sends, and carries the sign in the routing optimality district at the network element place that said target has the mobile management function in the said handoff request message; The network element with mobile management function in routing optimality district, visit ground, said source has a network element place of mobile management function according to said target the sign in routing optimality district judges that network element that said target has a mobile management function is whether in the routing optimality district at the network element place with mobile management function in routing optimality district, visit ground, said source; If not, confirm that then said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source.Here reach the network element that hereinafter described target has the mobile management function and be positioned at the target routing optimality district that the terminal moves to, the network element that target has the mobile management function for example is target MME or target SGSN.
The network element with mobile management function in routing optimality district, visit ground, said source confirms that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source and specifically can comprise: the network element with mobile management function in routing optimality district, visit ground, said source upgrades flow process or the reorientation flow process in the position and obtains specific identifier, has mapping relations between said specific identifier and a routing optimality district; The network element with mobile management function in routing optimality district, visit ground, said source is according to the mapping relations between specific identifier and the routing optimality district; Obtain the sign in the routing optimality district that network element that the target corresponding with specific identifier have the mobile management function belongs to; And judge that network element that said target has a mobile management function is whether in the routing optimality district at the network element place with mobile management function in routing optimality district, visit ground, said source; If not, confirm that then said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source.
The notice that obtains the deletion routing optimization bearing specifically can for: the establishment in the network element with mobile management function in routing optimality district, visit ground, said source or routing optimality district, visit ground, said source has the network element of routing optimization bearing to obtain the notice of deletion routing optimization bearing; Deleting said routing optimization bearing is specially: the establishment in the network element with mobile management function in routing optimality district, visit ground, said source or routing optimality district, visit ground, said source has the network element of routing optimization bearing to delete said routing optimization bearing.
The network element with mobile management function in routing optimality district, visit ground, said source is deleted said routing optimization bearing and specifically can be comprised: the Mobility Management Entity MME in routing optimality district, visit ground, said source asks the S-GW in routing optimality district, visit ground, said source to delete said routing optimization bearing, and the SGSN in routing optimality district, visit ground, perhaps said source asks the PDP Context of the GGSN deletion routing optimality in routing optimality district, visit ground, said source.
The network element with mobile management function in said target routing optimality district confirms that routing optimality district, visit ground moves to said target routing optimality district and specifically can comprise from said source at said terminal: the network element with mobile management function in said target routing optimality district upgrades the request contexts response message that network element that the source of receiving the flow process has the mobile management function sends in the position, carries the sign in the routing optimality district at the network element place that said source has the mobile management function in the described request context response information; The network element with mobile management function in said target routing optimality district has a network element place of mobile management function according to said source the sign in routing optimality district judges that network element that said source has a mobile management function is whether in the routing optimality district at the network element place with mobile management function in said target routing optimality district; If not, confirm that then said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source.
The network element with mobile management function in said target routing optimality district confirms that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source and specifically can comprise: the network element with mobile management function in said target routing optimality district upgrades flow process or the reorientation flow process in the position and obtains specific identifier, has mapping relations between said specific identifier and a routing optimality district; The network element with mobile management function in said target routing optimality district is according to the mapping relations between specific identifier and the routing optimality district; Obtain the sign in the routing optimality district that network element that the source corresponding with specific identifier have the mobile management function belongs to; And judge that network element that said source has a mobile management function is whether in the routing optimality district at the network element place with mobile management function in said target routing optimality district; If not, confirm that then said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source.
The network element with mobile management function in said target routing optimality district is deleted said routing optimization bearing and specifically can be comprised: the network element with mobile management function in said target routing optimality district notifies the network element with mobile management function in routing optimality district, visit ground, said source to delete said routing optimization bearing, and the MME in perhaps said target routing optimality district notifies the said that part of route that switches to said target routing optimality district of the S-GW deletion in said target routing optimality district to carry.
The establishment in routing optimality district, visit ground, said source has notice that the network element of routing optimization bearing obtains the deletion routing optimization bearing specifically can obtain the notice of the deletion routing optimization bearing that the S-GW in routing optimality district, visit ground, said source sends for: the P-GW in routing optimality district, visit ground, said source, and the GGSN in routing optimality district, visit ground, perhaps said source obtains the notice of the deletion routing optimization bearing that the SGSN in routing optimality district, visit ground, said source sends.
The establishment in routing optimality district, visit ground, said source has the network element deletion routing optimization bearing of routing optimization bearing specifically can comprise: the establishment in routing optimality district, visit ground, said source has the network element of routing optimization bearing to initiate the deletion routing optimization bearing.In said method; If after confirming in routing optimality district, visit ground, source, to have set up the terminal of routing optimization bearing and moving to target routing optimality district from routing optimality district, visit ground, said source; Then can delete routing optimization bearing; So just can not stride the business data transmission in routing optimality district, thereby save the resource between the routing optimality district.
Except that the processing method of above-mentioned routing optimization bearing; The embodiment of the invention also provides a kind of processing unit of routing optimization bearing; Be applicable to that the terminal moves to target routing optimality district from routing optimality district, visit ground, source and the scene that routing optimization bearing is arranged is created in said terminal in routing optimality district, visit ground, said source; Comprise: detecting unit is used for confirming that routing optimality district, visit ground moves to target routing optimality district from the source at the terminal; Carry processing unit, be used for after said detecting unit confirms that the terminal moves to target routing optimality district from routing optimality district, visit ground, source, deleting the routing optimization bearing that create in routing optimality district, visit ground, said source at said terminal.
The processing unit of said routing optimization bearing can be arranged in the network element with mobile management function in routing optimality district, visit ground, said source; Said detecting unit can comprise: the information receiving and transmitting unit; Be used for upgrading flow process and receive that target has the handoff request message that the network element of mobile management function sends, carry the sign in the routing optimality district at the network element place that said target has the mobile management function in the said handoff request message in the position; Judging unit; Be used for judging that according to the sign in routing optimality district that said target has a network element place of mobile management function network element that said target has a mobile management function is whether in the routing optimality district at the network element place with mobile management function in routing optimality district, visit ground, said source; If not, confirm that then said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source.
The processing unit of said routing optimization bearing can be arranged in the network element with mobile management function in routing optimality district, visit ground, said source; Said detecting unit can comprise: the information receiving and transmitting unit; Be used for upgrading flow process or reorientation flow process and obtain specific identifier, have mapping relations between said specific identifier and a routing optimality district in the position; Judging unit; Be used for according to the mapping relations between specific identifier and the routing optimality district; Obtain the sign in the routing optimality district that network element that the target corresponding with specific identifier have the mobile management function belongs to; And judge that network element that said target has a mobile management function is whether in the routing optimality district at the network element place with mobile management function in routing optimality district, visit ground, said source; If not, confirm that then said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source.
The processing unit of said routing optimization bearing can be arranged among the MME or SGSN in routing optimality district, visit ground, said source; Said carrying processing unit can comprise: request unit; Be used to ask the S-GW in routing optimality district, visit ground, said source to delete said routing optimization bearing, perhaps ask the PDP Context of the GGSN deletion routing optimality in routing optimality district, visit ground, said source.
The processing unit of said routing optimization bearing can be arranged in the network element with mobile management function in said target routing optimality district; Said detecting unit can comprise: the information receiving and transmitting unit; Be used for upgrading the request contexts response message that network element that the flow process source of receiving has the mobile management function sends, carry the sign in the routing optimality district at the network element place that said source has the mobile management function in the described request context response information in the position; Judging unit; Be used for judging that according to the sign in routing optimality district that said source has a network element place of mobile management function network element that said source has a mobile management function is whether in the routing optimality district at the network element place with mobile management function in said target routing optimality district; If not, confirm that then said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source.
The processing unit of said routing optimization bearing can be arranged in the network element with mobile management function in said target routing optimality district; Said detecting unit can comprise: the information receiving and transmitting unit; Be used for upgrading flow process or reorientation flow process and obtain specific identifier, have mapping relations between said specific identifier and a routing optimality district in the position; Judging unit; Be used for according to the mapping relations between specific identifier and the routing optimality district; Obtain the sign in the routing optimality district that network element that the source corresponding with specific identifier have the mobile management function belongs to; And judge network element that said source has a mobile management function whether in the routing optimality district at the network element place with mobile management function in said target routing optimality district, if not, confirm that then said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source.
The processing unit of said routing optimization bearing can be arranged among the MME in said target routing optimality district; Said carrying processing unit can comprise: notification unit; Be used to notify the MME in routing optimality district, visit ground, said source to delete said routing optimization bearing, perhaps notify the said that part of route that switches to said target routing optimality district of S-GW deletion in said target routing optimality district to carry.
The establishment that the processing unit of said routing optimization bearing can be arranged on routing optimality district, visit ground, said source has in the network element of routing optimization bearing, and said carrying processing unit can comprise: initiate the unit, be used for initiating the deletion routing optimization bearing.
In said apparatus; After if detecting unit is confirmed in routing optimality district, visit ground, source, to have set up the terminal of routing optimization bearing and is moved to target routing optimality district from routing optimality district, visit ground, said source; Then carry processing unit and can delete routing optimization bearing; So just can not stride the business data transmission in routing optimality district, thereby save the resource between the routing optimality district.
The embodiment of the invention also provides the processing unit of another kind of routing optimization bearing, comprising: the information receiving and transmitting unit, be used for when the terminal when routing optimality district, visit ground, source moves to target routing optimality district, obtain the notice of deletion routing optimization bearing; Carry processing unit, be used for after said information receiving and transmitting unit obtains the notice of deletion routing optimization bearing, delete the routing optimization bearing that create in routing optimality district, visit ground, said source at said terminal.
The processing unit of said routing optimization bearing can be arranged in the network element with mobile management function in routing optimality district, visit ground, said source, and the notice of the deletion routing optimization bearing that said information receiving and transmitting unit obtains can be that the network element with mobile management function in said target routing optimality district sends.
The processing unit of said routing optimization bearing can be arranged among the MME or SGSN in routing optimality district, visit ground, said source; Said carrying processing unit can comprise: request unit; Be used to ask the S-GW in routing optimality district, visit ground, said source to delete said routing optimization bearing, perhaps ask the PDP Context of the GGSN deletion routing optimality in routing optimality district, visit ground, said source.
The processing unit of said routing optimization bearing can be arranged among the P-GW in routing optimality district, visit ground, said source, and the notice of the deletion routing optimization bearing that said information receiving and transmitting unit obtains can be that the S-GW in routing optimality district, visit ground, said source sends; The processing unit of said routing optimization bearing can be arranged among the GGSN in routing optimality district, visit ground, said source, and the notice of the deletion routing optimization bearing that said information receiving and transmitting unit obtains can be that the SGSN in routing optimality district, visit ground, said source sends.
The establishment that the processing unit of said routing optimization bearing can be arranged on routing optimality district, visit ground, said source has in the network element of routing optimization bearing, and said carrying processing unit can comprise: initiate the unit, be used for initiating the deletion routing optimization bearing.
In said apparatus; If the notice of deletion routing optimization bearing is received in the information receiving and transmitting unit; Then carry processing unit and can delete routing optimization bearing, so just can not stride the business data transmission in routing optimality district, thereby save the resource between the routing optimality district.
Below in conjunction with accompanying drawing, processing method and the device to the routing optimization bearing of the embodiment of the invention is elaborated respectively.
As shown in Figure 1, a kind of processing method of routing optimization bearing is applicable to that the terminal moves to target routing optimality district from routing optimality district, visit ground, source and the scene that routing optimization bearing is arranged is created in said terminal in routing optimality district, visit ground, said source, comprising:
Step S101: the network element with mobile management function in routing optimality district, visit ground, said source confirms that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source; The network element with mobile management function in routing optimality district, visit ground, perhaps said source is confirmed network element that the target of reorientation has the mobile management function in routing optimality district, visit ground, said source, and the network element with mobile management function in routing optimality district, visit ground, perhaps said source obtains the notice of the deletion routing optimization bearing that the network element in said target routing optimality district sends;
Step S102: the network element with mobile management function in routing optimality district, visit ground, said source notify visit ground, said source routing optimality the district and said terminal between create and have the network element of routing optimization bearing to delete said routing optimization bearing.
Method shown in Figure 1 can be applied to evolvement network.The framework of evolvement network is as shown in Figure 2, comprises the universal land radio access web (E-UTRAN, Evolved Universal Terrestrial RadioAccess Network) of evolution, is used to realize all and the wireless function associated of evolvement network; Mobile management network element (MME; Mobility Management Entity), is responsible for the mobile management of chain of command, comprises the management of user's context and mobile status; Distributing user temporary identity sign (TMSI, Temporary MobileSubscriber Identity) etc.; Gateway (S-GW, Serving Gateway) is the user plane anchor point between the 3GPP access network, stops the interface of E-TURAN; Grouped data network gateway (P-GW, Packet Data Network Gateway) is the user plane anchor point between 3GPP access network and the non-3 GPP access network network, and has interface between the external packet data network (PDN, Packet Data Network); Home subscriber server (HSS, Home Subscriber Server) is used for storing user subscription information.MME, S-GW, P-GW and HSS are usually as the network element of core net.If method shown in Figure 1 is applied to evolvement network; The network element with mobile management function in routing optimality district, visit ground, then said source is exactly the MME in routing optimality district, visit ground, source; Visit ground, said source routing optimality the district and said terminal between create the P-GW that the network element that routing optimization bearing is arranged is exactly routing optimality district, visit ground, source, the network element in target routing optimality district that sends the notice of deletion routing optimization bearing is exactly the MME in target routing optimality district.
The network element with mobile management function in routing optimality district, visit ground, said source notify visit ground, said source routing optimality the district and said terminal between create the network element that routing optimization bearing is arranged and delete said routing optimization bearing and specifically can comprise: the MME in routing optimality district, visit ground, said source can ask the S-GW in routing optimality district, visit ground, said source to delete said routing optimization bearing, and the S-GW by routing optimality district, visit ground, said source asks the P-GW in routing optimality district, visit ground, said source to delete said routing optimization bearing again.
Method shown in Figure 1 can be applied to professional (UMTS, Universal MobileTerrestrial Service) system in general mobile land or GPRS (GPRS, General Packet RadioService) system.The network architecture of UMTS/GPRS is as shown in Figure 3; Comprise: universal land radio access web (UTRAN; Universal Terrestrial Radio Access Network); Generally include a plurality of radio network controllers (RNC, Radio Network Controller) and Radio Transmission Node (NodeB), be used for realizing the wireless access function of UMTS system; GSM EDGE Radio Access Network (GERAN; GSM/EDGE Radio Access Network), generally include a plurality of base station controllers (BSC, BaseStation Controller) and base station (BS; Base Station), be used for realizing the wireless access function of gprs system; Service universal grouping wireless business supporting node (SGSN, Serving GPRSSupporting Node) is used for realizing the functions such as routing forwarding, mobile management, session management and user profile storage of GPRS/UMTS system; Ggsn (GGSN, Gateway GPRS Supporting Node) is used to connect outside PDN; Attaching position register (HLR, Home Location Register) is used to store the CAMEL-Subscription-Information of user about Network.SGSN, GGSN and HLR are usually as core net (CN, Core Network) network element.The framework and the flow process of gprs system have been described in the 3GPP TS23.060 standard.
If method shown in Figure 1 is applied to the UMTS/GPRS system; The network element with mobile management function in routing optimality district, visit ground, then said source is exactly the SGSN in routing optimality district, visit ground, source; Visit ground, said source routing optimality the district and said terminal between create the GGSN that the network element that routing optimization bearing is arranged is exactly routing optimality district, visit ground, source, the network element in target routing optimality district that sends the notice of deletion routing optimization bearing is exactly the SGSN in target routing optimality district.
The network element with mobile management function in routing optimality district, visit ground, said source notify visit ground, said source routing optimality the district and said terminal between create the network element that routing optimization bearing is arranged and delete said routing optimization bearing and specifically can comprise: the SGSN in routing optimality district, visit ground, said source asks packet data protocol (PDP, the Packet DataProtocol) context (Context) of the GGSN deletion routing optimality in routing optimality district, visit ground, said source.
In method shown in Figure 1; If the network element with mobile management function in routing optimality district, visit ground, said source is confirmed said terminal and is moved to said target routing optimality district from routing optimality district, visit ground, said source; The network element with mobile management function in routing optimality district, visit ground, perhaps said source confirms that network element that the target of reorientation has the mobile management function is in routing optimality district, visit ground, said source; The network element with mobile management function in routing optimality district, visit ground, perhaps said source obtains the notice of the deletion routing optimization bearing that the network element in said target routing optimality district sends; The network element with mobile management function in routing optimality district, visit ground, then said source notify visit ground, said source routing optimality the district and said terminal between create and have the network element of routing optimization bearing to delete said routing optimization bearing; So just can not stride the business data transmission in routing optimality district, thereby save the resource between the routing optimality district.
Method shown in Figure 1 can be realized by the network element of various ways.
It is as shown in Figure 4 that wherein a kind of has the network element of mobile management function; Be applicable to that the terminal moves to the establishment in routing optimality district, visit ground, said source of target routing optimality district, said terminal and has routing optimization bearing and said network element with mobile management function to be arranged on the scene in the routing optimality district, visit ground, said source from routing optimality district, visit ground, source; Comprise: detecting unit 401; Be used for confirming that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source, confirm that perhaps network element that the target of reorientation has the mobile management function is in routing optimality district, visit ground, said source; Notification unit 402; Be used for after said detecting unit 401 confirms that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source; Perhaps after said detecting unit confirms that network element that the target of reorientation has a mobile management function is not in routing optimality district, visit ground, said source, notify visit ground, said source routing optimality the district and said terminal between create and have the network element of routing optimization bearing to delete said routing optimization bearing.
In network element shown in Figure 4; If detecting unit is confirmed said terminal and is moved to said target routing optimality district from routing optimality district, visit ground, said source; The network element with mobile management function in routing optimality district, visit ground, perhaps said source confirms that network element that the target of reorientation has the mobile management function is in routing optimality district, visit ground, said source; The network element with mobile management function in routing optimality district, visit ground, perhaps said source obtains the notice of the deletion routing optimization bearing that the network element in said target routing optimality district sends; Then notification unit notify visit ground, said source routing optimality the district and said terminal between create and have the network element of routing optimization bearing to delete said routing optimization bearing; So just can not stride the business data transmission in routing optimality district, thereby save the resource between the routing optimality district.
It is as shown in Figure 5 that another kind has the network element of mobile management function; Be applicable to that the terminal moves to the establishment in routing optimality district, visit ground, said source of target routing optimality district, said terminal and has routing optimization bearing and said network element with mobile management function to be arranged on the scene in the routing optimality district, visit ground, said source from routing optimality district, visit ground, source; Comprise: obtain unit 501, be used to obtain the notice of the deletion routing optimization bearing that the network element in said target routing optimality district sends; Notification unit 502 is used for the said notice that obtains according to said acquisition unit 501, notify visit ground, said source routing optimality the district and said terminal between create and have the network element of routing optimization bearing to delete said routing optimization bearing.
In network element shown in Figure 5; If obtain the notice of the deletion routing optimization bearing that network element that the unit obtains said target routing optimality district sends; Then notification unit notify visit ground, said source routing optimality the district and said terminal between create and have the network element of routing optimization bearing to delete said routing optimization bearing; So just can not stride the business data transmission in routing optimality district, thereby save the resource between the routing optimality district.
Need to prove that Fig. 4 and the network element with mobile management function shown in Figure 5 are exactly MME, in the UMTS/GPRS system, are exactly SGSN in evolvement network.
The processing method of another kind of routing optimization bearing is as shown in Figure 6, is applicable to that the terminal moves to target routing optimality district from routing optimality district, visit ground, source and the scene that routing optimization bearing is arranged is created in said terminal in routing optimality district, visit ground, said source, comprising:
Step S601: visit ground, said source routing optimality the district and said terminal between create the network element that routing optimization bearing is arranged and confirm that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source, visit ground, perhaps said source routing optimality the district and said terminal between create the notice of the deletion routing optimization bearing that other network elements that the network element that routing optimization bearing is arranged obtains routing optimality district, visit ground, said source send;
Step S602: visit ground, said source routing optimality the district and said terminal between create and have the network element of routing optimization bearing to delete said routing optimization bearing.
If method shown in Figure 6 is applied to evolvement network; Visit ground, then said source routing optimality the district and said terminal between create the P-GW that the network element that routing optimization bearing is arranged is exactly routing optimality district, visit ground, source, other network elements in routing optimality district, visit ground, said source that send the notice of deletion routing optimization bearing are exactly the S-GW in routing optimality district, visit ground, said source.
If method shown in Figure 6 is applied to UMTS system or gprs system; Visit ground, then said source routing optimality the district and said terminal between create the GGSN that the network element that routing optimization bearing is arranged is exactly routing optimality district, visit ground, source, other network elements in routing optimality district, visit ground, said source that send the notice of deletion routing optimization bearing are exactly the SGSN in routing optimality district, visit ground, said source.
In method shown in Figure 6; If visit ground, source routing optimality the district and said terminal between create the network element that routing optimization bearing is arranged and confirm that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source; Visit ground, perhaps said source routing optimality the district and said terminal between create the notice of the deletion routing optimization bearing that other network elements that the network element that routing optimization bearing is arranged obtains routing optimality district, visit ground, said source send; Then visit ground, source routing optimality the district and said terminal between create and have the network element of routing optimization bearing to delete said routing optimization bearing; So just can not stride the business data transmission in routing optimality district, thereby save the resource between the routing optimality district.
Method shown in Figure 6 can be realized by the network element of various ways.
It is as shown in Figure 7 that wherein a kind of has the network element of creating the route bearing function; Be applicable to the terminal move to from routing optimality district, visit ground, source target routing optimality district, said terminal in routing optimality district, visit ground, said source and said have to create between the network element of creating the route bearing function routing optimization bearing is arranged, saidly have the network element of creating the route bearing function and be arranged on the scene in the routing optimality district, visit ground, said source; Comprise: detecting unit 701 is used for confirming that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source; Carry processing unit 702, be used for after said definite unit 701 confirms that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source, deleting said routing optimization bearing.
In network element shown in Figure 7; If detecting unit is confirmed said terminal and is moved to said target routing optimality district from routing optimality district, visit ground, said source; Then carry processing unit and delete said routing optimization bearing; So just can not stride the business data transmission in routing optimality district, thereby save the resource between the routing optimality district.It is as shown in Figure 8 that another kind has the network element of creating the route bearing function; Be applicable to the terminal move to from routing optimality district, visit ground, source target routing optimality district, said terminal in routing optimality district, visit ground, said source and said have to create between the network element of creating the route bearing function routing optimization bearing is arranged, saidly have the network element of creating the route bearing function and be arranged on the scene in the routing optimality district, visit ground, said source; Comprise: obtain unit 801, be used to obtain the notice of the deletion routing optimization bearing that other network elements in routing optimality district, visit ground, said source send; Carry processing unit 802, be used for said notice, delete said routing optimization bearing according to 801 acquisitions of said acquisition unit.
In network element shown in Figure 8; If obtain the notice of the deletion routing optimization bearing that other network elements that the unit obtains routing optimality district, visit ground, said source send; Then carry processing unit and delete said routing optimization bearing; So just can not stride the business data transmission in routing optimality district, thereby save the resource between the routing optimality district.
Need to prove that Fig. 7 and the network element with establishment route bearing function shown in Figure 8 are exactly P-GW, in the UMTS/GPRS system, are exactly GGSN in evolvement network.
Except that Fig. 1 and method shown in Figure 6; The embodiment of the invention also provides a kind of processing method of routing optimization bearing; This method is applicable to that the terminal moves to target routing optimality district from routing optimality district, visit ground, source and the scene that routing optimization bearing is arranged is created in said terminal in routing optimality district, visit ground, said source; As shown in Figure 9, comprising:
Step S901: the network element with mobile management function in said target routing optimality district confirms that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source;
Step S902: the network element with mobile management function in said target routing optimality district notifies the network element with mobile management function in routing optimality district, visit ground, said source to delete said routing optimization bearing, perhaps initiates to have switched in the said routing optimization bearing of deletion that part of route carrying in said target routing optimality district.
If method shown in Figure 9 is applied to evolvement network, the network element that then has the mobile management function is exactly MME.
The network element with mobile management function in said target routing optimality district is initiated to delete that part of route carrying that has switched to said target routing optimality district in the said routing optimization bearing and specifically can be comprised: the MME in said target routing optimality district asks the said that part of route that switches to said target routing optimality district of the S-GW deletion in said target routing optimality district to be carried; The said that part of route that switches to target routing optimality district of the S-GW deletion in said target routing optimality district is carried, and the P-GW in routing optimality district, notification source visit ground deletes said routing optimization bearing.
If method shown in Figure 9 is applied to UMTS system or gprs system, then the routing optimality district is exactly the routing optimality district, and the network element with mobile management function is exactly SGSN.
The network element with mobile management function in said target routing optimality district is initiated to delete that part of route carrying that has switched to said target routing optimality district in the said routing optimization bearing and specifically can be comprised: the SGSN deletion in said target routing optimality district has switched to the GTP tunnel in said target routing optimality district, and the GGSN in routing optimality district, notification source visit ground deletes the PDP Context of routing optimality.
In method shown in Figure 9; If the network element with mobile management function in target routing optimality district is confirmed said terminal and is moved to said target routing optimality district from routing optimality district, visit ground, said source; Then the network element with mobile management function in target routing optimality district notifies the network element with mobile management function in routing optimality district, visit ground, said source to delete said routing optimization bearing; Perhaps initiate to have switched in the said routing optimization bearing of deletion that part of route carrying in said target routing optimality district; So just can not stride the business data transmission in routing optimality district, thereby save the resource between the routing optimality district.
Method shown in Figure 9 can be realized by the network element of various ways.
It is shown in figure 10 that wherein a kind of has the network element of mobile management function; Be applicable to that the terminal moves to the establishment in routing optimality district, visit ground, said source of target routing optimality district, said terminal and has routing optimization bearing and said network element with mobile management function to be arranged on the scene in the said target routing optimality district from routing optimality district, visit ground, source; Comprise: detecting unit 1001 is used for confirming that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source; Notification unit 1002; Be used for after said detecting unit 1001 confirms that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source, notifying the network element with mobile management function in routing optimality district, visit ground, said source to delete said routing optimization bearing.
In network element shown in Figure 10; If detecting unit is confirmed said terminal and is moved to said target routing optimality district from routing optimality district, visit ground, said source; Then notification unit notifies the network element with mobile management function in routing optimality district, visit ground, said source to delete said routing optimization bearing; So just can not stride the business data transmission in routing optimality district, thereby save the resource between the routing optimality district.
It is shown in figure 11 that another kind has the network element of mobile management function; Be applicable to that the terminal moves to the establishment in routing optimality district, visit ground, said source of target routing optimality district, said terminal and has routing optimization bearing and said network element with mobile management function to be arranged on the scene in the said target routing optimality district from routing optimality district, visit ground, source; Comprise: detecting unit 1101 is used for confirming that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source; Carry processing unit 1102; Be used for after said detecting unit 1101 confirms that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source, initiating to delete that part of route that has switched to said target routing optimality district in the said routing optimization bearing and carrying.
In network element shown in Figure 11; If detecting unit is confirmed said terminal and is moved to said target routing optimality district from routing optimality district, visit ground, said source; Then carry processing unit and initiate to have switched in the said routing optimization bearing of deletion that part of route carrying in said target routing optimality district; So just can not stride the business data transmission in routing optimality district, thereby save the resource between the routing optimality district.
Need to prove that Figure 10 and the network element with mobile management function shown in Figure 11 are exactly MME, in the UMTS/GPRS system, are exactly SGSN in evolvement network.
Need to prove that also if above-mentioned all method embodiment and network element embodiment use or be arranged in evolvement network, UMTS system or the gprs system, then above-mentioned terminal just is meant subscriber equipment (UE, User Equipment).
For making those skilled in the art more clearly understand the embodiment of the invention, introduce several preferred embodiments below again.
First preferred embodiment
For evolvement network, UE adheres on the MME (source MME hereinafter referred to as) in routing optimality district, a visit ground, and on the P-GW (source P-GW hereinafter referred to as) in routing optimality district, visit ground, source, has created routing optimization bearing, comprises default bearer and particular bearer.Certainly, this UE also can create non-routing optimization bearing simultaneously on the P-GW in ownership place routing optimality district.If the MME (source MME hereinafter referred to as) in routing optimality district, visit ground, source detects UE and moves to other routing optimality districts (target routing optimality district hereinafter referred to as), then the S-GW (source S-GW hereinafter referred to as) in routing optimality district, notification source visit ground discharges the routing optimization bearing of UE.
Source MME detects UE, and to move to the mode in other routing optimality districts following:
1) source MME is at tracking area update (TAU; Trace Area Update) receives the handoff request message that the MME (target MME hereinafter referred to as) in other routing optimality districts sends in the flow process; Carry the sign in the routing optimality district at target MME place in the message, source MME judges that according to the sign in the routing optimality district at target MME place target MME is whether in the routing optimality district that source MME belongs to.
2) source MME obtains specific identifier (for example target following area identification TAI) in TAU flow process or reorientation (Relocation) flow process; Source MME is according to the mapping relations between specific identifier and the routing optimality district; Obtain the sign in the routing optimality district at the target MME corresponding place, and judge that target MME is whether in the routing optimality district that source MME belongs to specific identifier.
The flow process of in striding the TAU flow process in routing optimality district, handling routing optimization bearing is shown in figure 12, and concrete steps are following:
S1201.UE at the tracing area of finding to stride the routing optimality district after changing; E-UTRAN in target routing optimality district (E-UTRAN among Figure 12) sends the TAU request message; Carry the TAI and the global unique temporary identity (GUTI, Globally UniqueTemporary Identity) in routing optimality district, visit ground, source in the message.
The MME (target routing optimality district in Figure 12) of S1202.E-UTRAN in target routing optimality district sends the TAU request message, carries the GUTI in routing optimality district, visit ground, source in the message.GUTI includes the Mobile Network Code (MNC of MME Code, MME; Mobile Network Code) and Mobile Country Code MCC (MCC; Mobile Country Code), target routing optimality district can retrieve the corresponding MME of these information that comprises with GUTI according to GUTI.
S1203. target MME is according to the GUTI in routing optimality district, visit ground, source; Determine information that GUTI comprises corresponding be source MME; Concurrent referring to asks context message to give source MME, newly-increased sign of carrying the routing optimality district at target MME place in the message, the perhaps newly-increased target TAI that carries.
S1204. to go out target MME according to the label detection in the routing optimality district at target MME place be the routing optimality district that belongs to other to source MME; Perhaps; Source MME is according to target TAI and the TAI of source MME configuration and the mapping relations in routing optimality district; Detecting target MME is the routing optimality district that belongs to other, and perhaps, source MME is according to the sign of the MME of the sign (normally IP address) of target MME and source MME configuration and the mapping relations in routing optimality district; Obtain the sign in the routing optimality district at target MME place, and to detect target MME be the routing optimality district that belongs to other.
Simultaneously; Target MME is according to the sign (IMSI International Mobile Subscriber Identity (IMSI of UE of UE; International Mobile Subscriber Identity), Mobile Subscriber International ISDN number (MSISDN; Mobile Station International ISDN Number) or other network access Identifier, just can obtain the ownership routing optimality district information of UE by these signs), detect UE for roaming UE.
S1205a. source MME returns the message of request contexts response to target MME; Carry the IMSI of UE, the authentication five-tuple of UE (Authentication Quintets), non-routing optimization bearing context, S-GW signaling plane address, Tunnel End Point Identifier information such as (TEID, Tunnel End Indentifier) in the message.
S1205b. target MME sets up non-routing optimization bearing message to the target S-GW request of sending.Target S-GW sets up non-routing optimization bearing context, and notice is positioned at the context that the P-GW that belongs to the routing optimality district sets up non-routing optimization bearing.MME notifies HSS in location update message, upgrade the information of the MME at the UE place of preserving among the HSS.In addition, MME notice Radio Access Network network element is that the non-routing optimization bearing of UE keeps corresponding radio resource, and S-GW is the information such as TEID that non-routing optimization bearing distributes.。
S1206a. source MME is to all routing optimization bearings of source S-GW request deexcitation UE.S1206b. all routing optimization bearings of source S-GW request source P-GW deexcitation UE.S1206c. source P-GW initiates to delete the flow process of routing optimization bearing subsequently.Source P-GW sends deleting bearing message and gives source S-GW.Source S-GW deletion user's routing optimization bearing contextual information, and send deleting bearing message and give source MME.Source MME deletion user's routing optimization bearing contextual information, and notice Radio Access Network network element is deleted the Radio Resource that routing optimization bearing takies.
Need to prove that step 5 and 6 is separate, do not have ordinal relation.
In flow process shown in Figure 12; If it is the routing optimality district that belongs to other that source MME detects target MME; Then source MME is to all routing optimization bearings of source S-GW request deexcitation UE; All routing optimization bearings of source S-GW request source P-GW deexcitation UE so just can not striden the business data transmission in routing optimality district, thereby saved the resource between the routing optimality district.
The flow process of in striding the Relocation flow process in routing optimality district, handling routing optimization bearing is shown in figure 13, and concrete steps are following:
S1301. E-UTRAN (the target E-UTRAN hereinafter referred to as) decision-making in the E-UTRAN (source E-UTRAN hereinafter referred to as) in routing optimality district, source visit ground and target routing optimality district triggers the reorientation flow process of striding the routing optimality district.
S1302. source E-UTRAN sends handoff request (Handover Request) message to source MME, carries the information (TAI that comprises the TA that evolution base station (E-NodeB) sign and E-NodeB among the target E-UTRAN belong to) of target E-UTRAN in the message.Source MME is according to TAI and the TAI of source MME configuration and the mapping relations in routing optimality district at the place of the E-NodeB in the handoff request message; Obtain the information in target routing optimality district; Perhaps, source MME resolves the sign (normally IP address) that obtains target MME from TAI, perhaps; Source MME obtains the information in target routing optimality district according to the MME sign of source MME configuration and the mapping relations in routing optimality district.
If S1303. source MME detects the not routing optimality district at MME place in the source of target MME; And source MME is roaming UE according to the identification discovery UE of UE; And UE has set up routing optimization bearing on the P-GW of source; Then source MME sends re-positioning request (RelocationRequest) message to target MME, carries the information of target E-UTRAN, the non-routing optimization bearing contextual information of UE, address and the TEID of source S-GW in the message.
S1304. target MME sends handoff request message to target E-UTRAN, and target E-UTRAN is that the non-routing optimization bearing of UE keeps interface-free resources.
S1305. target E-UTRAN returns switching response message, and the interface-free resources that is indicated as the non-routing optimization bearing of UE reservation has kept completion.
S1306. target MME sends relocation response message and gives source MME.
S1307. source MME sends the message of deleting routing optimization bearing and gives source S-GW.
S1308. source S-GW sends the message of deleting routing optimization bearing and gives source P-GW.
S1309. source P-GW initiates the flow process of deletion routing optimization bearing.This flow process with S1206c in describe. the process that source P-GW initiates the deletion routing optimization bearing is identical.
S1310. source MME sends switching command to source E-UTRAN.
S1311. source E-UTRAN sends switching command to UE.
S1312.UE switches to target routing optimality district.
Need to prove, after source MME receives the relocation response message of target MME, initiate the non-routing optimization bearing of UE is switched to the flow process (comprising that notice UE switches to target routing optimality district) in target routing optimality district immediately.Source MME order UE switches to the Radio Access Network in target routing optimality district.After the target radio access network network element was received the switch acknowledgment message of UE, notification target MME UE had switched to target routing optimality district.Target MME sets up non-routing optimization bearing message to the target S-GW request of sending.Target S-GW sets up non-routing optimization bearing context, and notice is positioned at the context that the P-GW that belongs to the routing optimality district sets up non-routing optimization bearing.Target MME is after S-GW sets up completion routing optimization bearing context, and notice Radio Access Network network element S-GW is the information such as TEID that non-routing optimization bearing distributes.Target MME notifies HSS in location update message, upgrade the information of the MME at the UE place of preserving among the HSS.
In flow process shown in Figure 13; If source MME detects the not routing optimality district at MME place in the source of target MME; Then source MME sends the message of deleting routing optimization bearing and gives source S-GW; Source S-GW sends the message of deletion routing optimization bearing and gives source P-GW, so just can not stride the business data transmission in routing optimality district, thereby save the resource between the routing optimality district.
Second preferred embodiment
For gprs system; UE adheres on the SGSN (source SGSN hereinafter referred to as) in routing optimality district, visit ground, source; And on the GGSN (source GGSN hereinafter referred to as) in routing optimality district, visit ground, source, created GPRS Tunnel Protocol (GTP, the GPRS Tunnel Protocol) tunnel of routing optimality, because GTP tunnel is managed through PDP Context; So the GTP tunnel of creating routing optimality also can be equal to the PDP Context that is described as creating routing optimality.Certainly, UE also can create the PDP Context of non-routing optimality simultaneously on the GGSN in ownership place routing optimality district.If source SGSN detects UE and moves to target routing optimality district, the PDP Context of the routing optimality of the GGSN deexcitation UE in the notification source routing optimality district then.
Source SGSN detects UE, and to move to the mode in other routing optimality districts following:
1) source SGSN receives the RAU request message that the target SGSN in other routing optimality districts is sent in the RAU flow process; Carry the sign in the routing optimality district at target SGSN place in the message, source SGSN judges the target SGSN routing optimality district whether SGSN belongs in the source according to the sign in the routing optimality district at target SGSN place.
2) source SGSN obtains specific identifier (the for example sign of target Tracking Area Identifier RAI or SGSN) in RAU flow process or Relocation flow process; Source SGSN is according to the specific identifier of source SGSN configuration and the mapping relations between the routing optimality district; Obtain the sign in the routing optimality district at the target SGSN place corresponding, and judge the target SGSN routing optimality district whether SGSN belongs in the source with specific identifier.
The flow process of in striding the RAU flow process in routing optimality district, handling routing optimization bearing is shown in figure 14, and concrete steps are following:
After S1401.UE moves to target routing optimality district, send the RAU request message to target SGSN, carry information such as source RAI in the message through target UTRAN/GERAN.
S1402. target SGSN is sent the SGSN context request message to source SGSN, the newly-increased sign in target routing optimality district, the sign of target SGSN or the information of target RAI of carrying in the message.After source SGSN receives the SGSN context request message,, detect target SGSN and belong to other routing optimality districts according to the sign in the target routing optimality district in the message; Perhaps; Source SGSN is according to the sign and the mapping relations in routing optimality district of the SGSN of the sign of target SGSN and source SGSN configuration, obtains and the sign in the corresponding routing optimality of the sign district of target SGSN, belongs to other routing optimality districts thereby detect target SGSN; Perhaps; Source SGSN converts target RAI the sign of routing optimality district into according to target RAI and the RAI of source SGSN configuration and the mapping relations in routing optimality district, belongs to other routing optimality districts thereby detect target SGSN.Source SGSN also judges through the sign of UE whether UE is roaming UE.
If S1403. UE is roaming UE, and UE created the PDP Context of routing optimality on the GGSN of source, then source SGSN sends deletion PDP Context request message to source GGSN.
S1404. source GGSN deletes PDP Context, and returns deletion PDP Context response message to source SGSN.
S1405. source SGSN returns the SGSN context response information to target SGSN, carries the information of the PDP Context of the non-routing optimality that UE creates in the message.
S1406. target SGSN is sent to the GGSN in ownership place routing optimality district and is upgraded the PDP Context request message, and the PDP Context with request renewal GGSN switches to the GTP tunnel between source SGSN and the GGSN between target SGSN and the GGSN.
S1407. the GGSN in ownership place routing optimality district is the information of target SGSN with the information updating of the SGSN in the information of PDP Context, and returns renewal PDP Context response message to target SGSN.Target SGSN is returned the RAU renewal through UTRAN/GERAN to UE and is accepted message.UE accomplishes the process that switches to target routing optimality district.
S1408. target SGSN is returned RAU to UE and is accepted message.
In flow process shown in Figure 14; If detecting target SGSN, source SGSN belongs to other routing optimality districts; Then source SGSN sends deletion PDP Context request message to source GGSN; Source GGSN deletes PDP Context, so just can not stride the business data transmission in routing optimality district, thereby save the resource between the routing optimality district.
The flow process of in striding the Relocation flow process in routing optimality district, handling routing optimization bearing is shown in figure 15, and concrete steps are following:
S1501.UE and source UTRAN/GERAN decision-making reorientation.
S1502. source UTRAN/GERAN sends RELOCATION REQUEST message to source SGSN, carries the network element ID (the for example RNC of UTRAN sign) of target UTRAN/GERAN, the network element ID that source UTRAN/GERAN belongs to the routing optimality district, the Radio Resource control information that is used for reorientation in the message.
If S1503. source SGSN has disposed the network element ID of UTRAN/GERAN and the mapping relations in routing optimality district, then source SGSN can obtain the sign in routing optimality district at the network element place of the target UTRAN/GERAN corresponding with the network element ID of target UTRAN/GERAN.Source SGSN detects target SGSN and belongs to other routing optimality districts.Source SGSN belongs to roaming UE according to the label detection of UE to UE.Source SGSN detects UE according to the address of the GGSN in the PDP Context of UE or APN (APN, Access Point Name) and on the GGSN of source, creates the PDP Context that routing optimality is arranged.Source SGSN detects target SGSN according to the network element ID of target UTRAN/GERAN.Source SGSN is transmitted to target SGSN with RELOCATION REQUEST message, carries mobile management (MM, the Mobile Management) context of UE and the PDP Context of non-routing optimality in the reorientation message.
S1504. target SGSN is sent RELOCATION REQUEST message to target UTRAN/GERAN, carry in the message network element ID, the target UTRAN/GERAN of source UTRAN/GERAN network element ID, be used for the Radio Resource control information of reorientation.
S1505. target UTRAN/GERAN distributing radio resource, and return relocation response message to target SGSN.
S1506. target SGSN is returned relocation response message to source SGSN.If in step 3, source SGSN can't obtain the sign in target routing optimality district, then in relocation response message, can carry the sign in target routing optimality district.
S1507. source SGSN sends the reorientation command messages to source UTRAN/GERAN, carries the wireless resource information that target UTRAN/GERAN network element passes to source UTRAN/GERAN network element in the message.
S1508. UTRAN/GERAN indicating terminal in source reconfigures Radio Resource, comprises the notice terminal wireless resource information relevant with the network element of target UTRAN/GERAN.
S1509. source SGSN sends deletion PDP Context request message and gives source GGSN, is used to delete the PDP Context of routing optimality.This step and step 7 be order in no particular order.
S1510. behind the PDP Context of source GGSN deletion routing optimality, send deletion PDP Context response message and give source SGSN.
S1511.UE accomplishes message to target UTRAN/GERAN reported by network elements radio-resource-configuration.
S1512. target UTRAN/GERAN network element sends reorientation to target SGSN and accomplishes message.
S1513. target SGSN is sent reorientation to source SGSN and is accomplished message.
S1514. source SGSN sends and discharges the network element that connection message is given source UTRAN/GERAN, is used to discharge Radio Resource and is connected.
S1515. the network element of source UTRAN/GERAN returns and discharges connection response message to source SGSN.
S1516. source SGSN returns reorientation to target SGSN and accomplishes response message.
S1517. target SGSN is sent and is upgraded the GGSN that PDP Context message is given ownership place routing optimality district, is used to upgrade the PDP Context of non-routing optimality
S1518.GGSN upgrades the information relevant with SGSN in the PDP Context, the downlink service data of UE is transmitted to target SGSN, and returns renewal PDP Context response message.
In flow process shown in Figure 15; If detecting target SGSN, source SGSN belongs to other routing optimality districts; Then source SGSN sends deletion PDP Context request message and gives source GGSN; The PDP Context of source GGSN deletion routing optimality so just can not striden the business data transmission in routing optimality district, thereby saved the resource between the routing optimality district.
The 3rd preferred embodiment
For evolvement network, UE adheres on the MME of source, and on the P-GW of source, has created routing optimization bearing, comprises default bearer and particular bearer.Certainly, UE also can create non-routing optimization bearing simultaneously on the P-GW in ownership place routing optimality district.If target MME detects UE and moves to other routing optimality districts, then notification source MME discharges the routing optimization bearing of UE.
Target MME detects the method that UE moves to other routing optimality districts to be had:
1) target MME receives the request contexts response message that the MME in other routing optimality districts sends in the TAU flow process; Carry the sign in said other routing optimality districts in the message, whether the MME that target MME judges said other routing optimality districts according to the sign in said other routing optimality districts is in the routing optimality district at target MME place.
2) target MME obtains specific identifier (for example source TAI) in TAU flow process or Relocation flow process.Target MME obtains the sign in the routing optimality district at the source MME place corresponding with specific identifier, and judges that whether source MME is in target routing optimality district according to the specific identifier of target MME configuration and the mapping relations between the routing optimality district.
The flow process of in striding the TAU process in routing optimality district, handling routing optimization bearing is shown in figure 16, and concrete steps are following:
S1601.UE at the tracing area of finding to stride the routing optimality district after changing, the E-UTRAN in target routing optimality district (E-UTRAN shown in Figure 16) sends the TAU request message, carries the TAI and the GUTI in routing optimality district, visit ground, source in the message.
S1602.E-UTRAN sends the TAU request message to target MME, carries the GUTI in routing optimality district, visit ground, source in the message.GUTI includes MNC and the MCC of MME Code, MME, and target MME can retrieve the corresponding MME of these information that comprises with GUTI according to GUTI.
S1603a. target MME sends request contexts message to source MME.S1603b. source MME returns the message that request contexts responds to target MME, carries the sign in the routing optimality district at source MME place in the message, the perhaps newly-increased target TAI that carries.
S1604. to go out source MME according to the label detection in the routing optimality district at source MME place be the routing optimality district that belongs to other to target MME; Perhaps; Target MME is according to target TAI and the TAI of target MME configuration and the mapping relations in routing optimality district; The source MME of detecting is the routing optimality district that belongs to other, and perhaps, target MME is according to the sign of the MME of the sign (normally IP address) of source MME and target MME configuration and the mapping relations in routing optimality district; Obtain the sign in the routing optimality district at source MME place, and the source MME of detecting is the routing optimality district that belongs to other.
S1605a. target MME returns the request contexts confirmation to source MME, discharges the routing optimization bearing of UE with notification source MME.S1605b. source MME foundation and the position new technological process more of initiating non-routing optimization bearing subsequently.This flow process is identical with flow process among the S1205b.
S1606a. source MME is to all routing optimization bearings of source S-GW request deexcitation UE.
S1606b. all routing optimization bearings of source S-GW request source P-GW deexcitation UE.
S1606c. source P-GW initiates to delete the flow process of routing optimization bearing subsequently.It is identical that source P-GW among this flow process and the S1206c initiates deletion routing optimization bearing flow process.
It is pointed out that foundation and position that source MME in the step 5 initiates non-routing optimization bearing are more separate between new technological process and the step 6, do not have ordinal relation.
In flow process shown in Figure 16; If it is the routing optimality district that belongs to other that target MME detects source MME; Then target MME returns the request contexts confirmation to source MME; All routing optimization bearings that source MME asks deexcitation UE to source S-GW, all routing optimization bearings of source S-GW request source P-GW deexcitation UE, source P-GW initiates to delete the flow process of routing optimization bearing subsequently; So just can not stride the business data transmission in routing optimality district, thereby save the resource between the routing optimality district.
The flow process of in striding the Relocation flow process in routing optimality district, handling routing optimization bearing is shown in figure 17, and concrete steps are following:
S1701. source E-UTRAN and target E-UTRAN decision-making triggers the reorientation flow process of striding the routing optimality district.
S1702. source E-UTRAN sends handoff request (Handover Request) message to source MME, carries the information (TAI that comprises the TA that E-NodeB sign and E-NodeB among the E-UTRAN belong to) of target E-UTRAN in the message.
S1703. source MME sends re-positioning request (Relocation Request) message to target MME, carries the information (TAI that comprises the TA that E-NodeB sign and E-NodeB among the E-UTRAN belong to) of address and TEID and source E-UTRAN of non-routing optimization bearing contextual information, the source S-GW of target E-UTRAN information, UE in the message.Target MME obtains the sign in source routing optimization district according to TAI and the TAI of target MME configuration and the mapping relations between the routing optimality district of the TA at source E-UTRAN place.Perhaps, target MME resolves the sign (normally IP address) that obtains source MME from TAI, and target MME is according to the sign of the MME of target MME configuration and the sign that the mapping relations between the routing optimality district obtain source routing optimization district.Target MME detects source MME not in the routing optimality district at target MME place, and detects UE according to the sign (IMSI of UE, MSISDN or other network access Identifier) of UE and be roaming UE, and detects UE and on the P-GW of source, set up routing optimization bearing.
S1704. target MME sends handoff request message to target E-UTRAN, and target E-UTRAN is that the non-routing optimization bearing of UE keeps interface-free resources.
S1705. target E-UTRAN returns switching response message to target MME, and the interface-free resources that is indicated as the non-routing optimization bearing of UE reservation has kept completion.
S1706. target MME sends relocation response message and gives source MME, discharges the routing optimization bearing of UE with notification source MME.
S1707. source MME sends the message of deleting routing optimization bearing and gives source S-GW.
S1708. source S-GW sends the message of deleting routing optimization bearing and gives source P-GW.
S1709. source P-GW initiates the flow process of the carrying of deletion routing optimality.This flow process is identical with the flow process that routing optimization bearing is deleted in the source P-GW initiation among the S1206c.
S1710. source MME sends switching command to source E-UTRAN.
S1711. source E-UTRAN sends switching command to UE.
S1712.UE switches to target routing optimality district.
Need to prove, after source MME receives the relocation response message of target MME, initiate the non-routing optimization bearing of UE is switched to the flow process (comprising that notice UE switches to target routing optimality district) in target routing optimality district immediately.This flow process is identical with flow process among the S1312.
In flow process shown in Figure 17; If target MME detects source MME not in the routing optimality district at target MME place, then target MME sends relocation response message and gives source MME, and source MME sends the message of deletion routing optimization bearing and gives source S-GW; Source S-GW sends the message of deletion routing optimization bearing and gives source P-GW; Source P-GW initiates the flow process of the carrying of deletion routing optimality, so just can not stride the business data transmission in routing optimality district, thereby save the resource between the routing optimality district.
The 4th preferred embodiment
For gprs system, UE adheres on the SGSN of source, and on the GGSN of source, has created the PDP Context of routing optimality.Certainly, UE also can create the PDP Context of non-routing optimality simultaneously on the GGSN in ownership place routing optimality district.If target SGSN detects UE and moves to target routing optimality district, the PDP Context of the routing optimality of notification source GGSN deexcitation UE then.
Target SGSN detects UE, and to move to the mode in other routing optimality districts following:
1) target SGSN is received the context request response message that the SGSN in other routing optimality districts sends in the RAU flow process, carries the sign in routing optimality district in the message.Source SGSN judges the target SGSN routing optimality district whether SGSN belongs in the source according to the sign in the routing optimality district at target SGSN place.
2) target SGSN is obtained specific identifier (the for example sign of target RAI or SGSN) in RAU flow process or Relocation flow process.Target SGSN obtains the sign in the source routing optimization district corresponding with specific identifier according to the specific identifier and the mapping relations between the routing optimality district of target SGSN configuration, and judges that source SGSN is whether in routing optimality district that target SGSN belongs to.
The flow process of in striding the RAU flow process in routing optimality district, handling routing optimization bearing is shown in figure 18, and concrete steps are following:
After S1801.UE moves to target routing optimality district, send the RAU request message to target SGSN, carry information such as source RAI in the message through target UTRAN/GERAN.
S1802. target SGSN is sent the SGSN context request message to source SGSN.
If S1803. UE is roaming UE, and on the GGSN of source, created the PDP Context of routing optimality, then source SGSN sends deletion PDP Context request message to source GGSN.
S1804. source GGSN deletes PDP Context, and returns deletion PDP Context response message to source SGSN.
S1805. source SGSN returns the SGSN context response information to target SGSN, carries the PDP Context of the non-routing optimality of UE establishment in the message, the newly-increased sign in source routing optimization district, sign or the source RAI of source SGSN of carrying in the context.Target SGSN is received the SGSN context response information, and according to the sign in the source routing optimization district in the message, the source SGSN of detecting belongs to other routing optimality districts.Perhaps, target SGSN disposes the sign of SGSN and the mapping relations between the routing optimality district, the sign in the corresponding routing optimality of the sign district of target SGSN acquisition and source SGSN, thus the source SGSN of detecting belongs to other routing optimality districts.Perhaps, target SGSN disposes the mapping relations between RAI and the routing optimality district, and target SGSN is mapped as the routing optimality district with source RAI, and the source SGSN of detecting belongs to other routing optimality districts.Target SGSN judges through the sign of UE whether UE is roaming UE.
S1806. target SGSN is returned the SGSN context acknowledgement message to source SGSN, discharges the routing optimization bearing of UE with notification source SGSN.
S1807. target SGSN is sent to the GGSN in ownership place routing optimality district and is upgraded the PDP Context request message; PDP Context on the GGSN in request renewal ownership place routing optimality district switches to the GTP tunnel between source SGSN and the GGSN between target SGSN and the GGSN.
S1808. to upgrade the information of the SGSN in the corresponding PDP Context be the information of target SGSN to the GGSN in ownership place routing optimality district, and return to target SGSN and to upgrade the PDP Context response message.
S1809. target SGSN is returned RAU through UTRAN/GERAN to UE and is accepted message.UE accomplishes the process that switches to target routing optimality district.
In flow process shown in Figure 180; Target SGSN is sent the SGSN context request message to source SGSN, if UE is roaming UE, and on the GGSN of source, has created the PDP Context of routing optimality; Then source SGSN sends deletion PDP Context request message to source GGSN; Source GGSN deletes PDP Context, so just can not stride the business data transmission in routing optimality district, thereby save the resource between the routing optimality district.
The flow process of in striding the Relocation flow process in routing optimality district, handling routing optimization bearing is shown in figure 19, and concrete steps are following:
S1901.UE and source UTRAN/GERAN decision-making reorientation.
S1902. source UTRAN/GERAN sends RELOCATION REQUEST message to source SGSN, carries the network element ID (the for example sign of the RNC of UTRAN) of target UTRAN/GERAN, the network element ID that source UTRAN/GERAN belongs to the routing optimality district, the Radio Resource control information that is used for reorientation in the message.
S1903. source SGSN is transmitted to target SGSN with RELOCATION REQUEST message; Carry the MM context of UE and the PDP Context of non-routing optimality in the message; Also carry the network element ID (for example, the RNC of UTRAN sign) of source UTRAN/GERAN, the network element ID in routing optimality district, source UTRAN/GERAN place in the message.
S1904. target SGSN is sent RELOCATION REQUEST message to target UTRAN/GERAN, carry in the message network element ID, the target UTRAN/GERAN of source UTRAN/GERAN network element ID, be used for the Radio Resource control information of reorientation.
S1905. target UTRAN/GERAN distributing radio resource, and return relocation response message to target SGSN.
S1906. target SGSN is returned relocation response message to source SGSN, discharges the routing optimization bearing of UE with notification source SGSN.If in step 3, source SGSN can't obtain the sign in the routing optimality district at target SGSN place, then in relocation response message, can carry the sign in the routing optimality district at target SGSN place.If target SGSN has disposed the network element ID of source UTRAN/GERAN and the mapping relations between the routing optimality district, then target SGSN can obtain the sign in the source routing optimization district corresponding with network element ID.Target SGSN detects source SGSN and belongs to other routing optimality districts.Target SGSN belongs to roaming UE according to the label detection of UE to UE.Source SGSN detects UE has routing optimality on the GGSN of source PDP Context according to address or the APN of the GGSN in the PDP Context of UE.Target SGSN detects source SGSN according to the network element ID of source UTRAN/GERAN.
S1907. source SGSN sends the reorientation command messages to source UTRAN/GERAN, and the network element that carries target UTRAN/GERAN in the message passes to the wireless resource information of the network element of source UTRAN/GERAN.
S1908. UTRAN/GERAN indicating terminal in source reconfigures Radio Resource, comprises the notice terminal wireless resource information relevant with the network element of target UTRAN/GERAN.
S1909. source SGSN sends deletion PDP Context request message and gives source GGSN, with the PDP Context of notification source GGSN deletion routing optimality.This step and step 7 be order in no particular order.
S1910. behind the PDP Context of source GGSN deletion routing optimality, send deletion PDP Context response message and give source SGSN.
S1911.UE accomplishes message to the reported by network elements radio-resource-configuration of target UTRAN/GERAN.
S1912. the network element of target UTRAN/GERAN sends reorientation to target SGSN and accomplishes message.
S1913. target SGSN is sent reorientation to source SGSN and is accomplished message.
S1914. source SGSN sends and discharges the network element that connection message is given source UTRAN/GERAN, is used to discharge Radio Resource and is connected.
S1915. the network element of source UTRAN/GERAN returns and discharges connection response message to source SGSN.
S1916. source SGSN returns reorientation to target SGSN and accomplishes response message.
S1917. target SGSN is sent and is upgraded the GGSN that PDP Context message is given ownership place routing optimality district, is used to upgrade the PDP Context of non-routing optimality.
S1918. the GGSN in ownership place routing optimality district upgrades the information relevant with SGSN in the PDP Context, the downlink service data of UE is transmitted to target SGSN, and returns renewal PDP Context response message.
In flow process shown in Figure 19; Target SGSN is returned relocation response message to source SGSN, and with the routing optimization bearing of notification source SGSN release UE, source SGSN sends deletion PDP Context request message and gives source GGSN; PDP Context with notification source GGSN deletion routing optimality; The PDP Context of source GGSN deletion routing optimality so just can not striden the business data transmission in routing optimality district, thereby saved the resource between the routing optimality district.
Except that said method and device were provided, the embodiment of the invention also provided two kinds of zonal communication networks.
A kind of zonal communication network comprises: Access Network and core net; Said Access Network provides wireless access function, and wherein, said Access Network transmits control signaling and the business datum between terminal and the said core net; Said core net is used for confirming that the terminal moves to the notice that other zonal communication networks perhaps obtain the deletion routing optimization bearing from the zonal communication network at said core net self place, deletes the routing optimization bearing that create in the zonal communication network at said core net self place at said terminal.
Another kind of zonal communication network comprises: Access Network and core net; Said Access Network provides wireless access function, and wherein, said Access Network transmits control signaling and the business datum between terminal and the said core net; Said core net is used for confirming that the terminal moves to the zonal communication network that said core net self belongs to from another zonal communication network, deletes the routing optimization bearing that create in said another zonal communication network at said terminal.
Need to prove that in above-mentioned all embodiment, if a routing optimality district is a PLMN, the sign in routing optimality district is exactly the sign of PLMN so; If routing optimality district is a zone in the PLMN, the sign in routing optimality district is exactly the sign of PLMN and result after extension combines so, and wherein, extension can be regional sign.
In the prior art; After the terminal moves to other routing optimality districts from source routing optimization district; The routing optimization bearing of in source routing optimization district, creating can become the carrying of striding the routing optimality district; Because mobile operator need collect extra wandering fee usually to the carrying of striding the routing optimality district, so prior art can increase user's cost burden.But in all embodiment of the present invention, after the terminal moved to other routing optimality districts from source routing optimization district, the routing optimization bearing that deletion is created in source routing optimization district so just can not increase user's wandering fee.
In the prior art, after the terminal moved to other routing optimality districts from source routing optimization district, the routing optimization bearing of in source routing optimization district, creating can become the carrying of striding the routing optimality district, can cause the confusion of chargeing between the mobile operator like this.But in all embodiment of the present invention, after the terminal moved to other routing optimality districts from source routing optimization district, the routing optimization bearing that deletion is created in source routing optimization district had so just avoided taking place between the mobile operator confusion of chargeing.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method; Be to instruct relevant hardware to accomplish through computer program; Described program can be stored in the computer read/write memory medium; This program can comprise the flow process like the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-OnlyMemory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.

Claims (6)

1. the processing method of a routing optimization bearing is characterized in that, is applicable to that the terminal moves to target routing optimality district from routing optimality district, visit ground, source and the scene that routing optimization bearing is arranged is created in said terminal in routing optimality district, visit ground, said source, comprising:
The network element with mobile management function in routing optimality district, visit ground, said source or the network element with mobile management function in said target routing optimality district confirm that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source;
The network element with mobile management function in routing optimality district, visit ground, said source or the network element with mobile management function in said target routing optimality district are deleted said routing optimization bearing;
Wherein, the network element with mobile management function in routing optimality district, visit ground, said source confirms that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source and specifically comprises:
The network element with mobile management function in routing optimality district, visit ground, said source upgrades in the position receives in the flow process that target has the handoff request message that the network element of mobile management function sends, and carries the sign in the routing optimality district at the network element place that said target has the mobile management function in the said handoff request message; The network element with mobile management function in routing optimality district, visit ground, said source has a network element place of mobile management function according to said target the sign in routing optimality district judges that network element that said target has a mobile management function is whether in the routing optimality district at the network element place with mobile management function in routing optimality district, visit ground, said source; If not, confirm that then said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source; Perhaps,
The network element with mobile management function in routing optimality district, visit ground, said source upgrades in flow process or the reorientation flow process in the position and obtains specific identifier, has mapping relations between said specific identifier and a routing optimality district; The network element with mobile management function in routing optimality district, visit ground, said source is according to the mapping relations between specific identifier and the routing optimality district; Obtain the sign in the routing optimality district that network element that the target corresponding with specific identifier have the mobile management function belongs to; And judge that network element that said target has a mobile management function is whether in the routing optimality district at the network element place with mobile management function in routing optimality district, visit ground, said source; If not, confirm that then said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source;
The network element with mobile management function in said target routing optimality district confirms that said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source and specifically comprises:
The network element with mobile management function in said target routing optimality district upgrades the source of receiving in the flow process and visits the request contexts response message that the network element with mobile management function in routing optimality district, ground sends in the position, the sign in the routing optimality district at the network element place with mobile management function in routing optimality district with carrying the visit of said source in the described request context response information; Whether the network element with mobile management function that the network element with mobile management function in said target routing optimality district is judged routing optimality district, visit ground, said source according to the sign in the routing optimality district at the network element place with mobile management function in routing optimality district, visit ground, said source is in the routing optimality district at the network element place with mobile management function in said target routing optimality district; If not, confirm that then said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source; Perhaps,
The network element with mobile management function in said target routing optimality district upgrades in flow process or the reorientation flow process in the position and obtains specific identifier, has mapping relations between said specific identifier and a routing optimality district; The network element with mobile management function in said target routing optimality district is according to the mapping relations between specific identifier and the routing optimality district; Obtain the sign in routing optimality district at the network element place with mobile management function in routing optimality district, visit ground, the source corresponding with specific identifier; And whether the network element with mobile management function of judging routing optimality district, visit ground, said source is in the routing optimality district at the network element place with mobile management function in said target routing optimality district; If not, confirm that then said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source.
2. the processing method of routing optimization bearing as claimed in claim 1; It is characterized in that; The network element with mobile management function in routing optimality district, visit ground, said source is deleted said routing optimization bearing and specifically comprised: the Mobility Management Entity MME in routing optimality district, visit ground, said source asks the gateway S-GW in routing optimality district, visit ground, said source to delete said routing optimization bearing, and the service universal grouping wireless business supporting node SGSN in routing optimality district, visit ground, perhaps said source asks the packet data protocol PDP Context of the ggsn GGSN deletion routing optimality in routing optimality district, visit ground, said source.
3. the processing method of routing optimization bearing as claimed in claim 1; It is characterized in that; The network element with mobile management function in said target routing optimality district is deleted said routing optimization bearing and specifically comprised: the network element with mobile management function in said target routing optimality district notifies the network element with mobile management function in routing optimality district, visit ground, said source to delete said routing optimization bearing, and that part of route that the MME in perhaps said target routing optimality district notifies the S-GW deletion in said target routing optimality district to switch to said target routing optimality district is carried.
4. the processing unit of a routing optimization bearing is characterized in that, is applicable to that the terminal moves to target routing optimality district from routing optimality district, visit ground, source and the scene that routing optimization bearing is arranged is created in said terminal in routing optimality district, visit ground, said source, comprising:
Detecting unit is used for confirming that routing optimality district, visit ground moves to target routing optimality district from the source at the terminal;
Carry processing unit, be used for after said detecting unit confirms that the terminal moves to target routing optimality district from routing optimality district, visit ground, source, deleting the routing optimization bearing that create in routing optimality district, visit ground, said source at said terminal;
Wherein, the processing unit of said routing optimization bearing is arranged in the network element with mobile management function in routing optimality district, visit ground, said source, and said detecting unit comprises:
The information receiving and transmitting unit; Be used for upgrading flow process and receive that target has the handoff request message that the network element of mobile management function sends, carry the sign in the routing optimality district at the network element place that said target has the mobile management function in the said handoff request message in the position;
Judging unit; Be used for judging that according to the sign in routing optimality district that said target has a network element place of mobile management function network element that said target has a mobile management function is whether in the routing optimality district at the network element place with mobile management function in routing optimality district, visit ground, said source; If not, confirm that then said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source;
Perhaps, the processing unit of said routing optimization bearing is arranged in the network element with mobile management function in routing optimality district, visit ground, said source, and said detecting unit comprises:
The information receiving and transmitting unit is used for upgrading flow process or reorientation flow process in the position and obtains specific identifier, has mapping relations between said specific identifier and a routing optimality district;
Judging unit; Be used for according to the mapping relations between specific identifier and the routing optimality district; Obtain the sign in the routing optimality district that network element that the target corresponding with specific identifier have the mobile management function belongs to; And judge that network element that said target has a mobile management function is whether in the routing optimality district at the network element place with mobile management function in routing optimality district, visit ground, said source; If not, confirm that then said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source;
Perhaps, the processing unit of said routing optimization bearing is arranged in the network element with mobile management function in said target routing optimality district, and said detecting unit comprises:
The information receiving and transmitting unit; Be used for upgrading the flow process source of receiving and visit the request contexts response message that the network element with mobile management function in routing optimality district, ground sends, the sign in the routing optimality district at the network element place with mobile management function in routing optimality district with carrying the visit of said source in the described request context response information in the position;
Judging unit; Whether the network element with mobile management function that is used for judging routing optimality district, visit ground, said source according to the sign in the routing optimality district at the network element place with mobile management function in routing optimality district, visit ground, said source is in the routing optimality district at the network element place with mobile management function in said target routing optimality district; If not, confirm that then said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source;
Perhaps, the processing unit of said routing optimization bearing is arranged in the network element with mobile management function in said target routing optimality district, and said detecting unit comprises:
The information receiving and transmitting unit is used for upgrading flow process or reorientation flow process in the position and obtains specific identifier, has mapping relations between said specific identifier and a routing optimality district;
Judging unit; Be used for according to the mapping relations between specific identifier and the routing optimality district; Obtain the sign in routing optimality district at the network element place with mobile management function in routing optimality district, visit ground, the source corresponding with specific identifier; And whether the network element with mobile management function of judging routing optimality district, visit ground, said source is in the routing optimality district at the network element place with mobile management function in said target routing optimality district; If not, confirm that then said terminal moves to said target routing optimality district from routing optimality district, visit ground, said source.
5. the processing unit of routing optimization bearing as claimed in claim 4; It is characterized in that; The processing unit of said routing optimization bearing is arranged among the MME or SGSN in routing optimality district, visit ground, said source; Said carrying processing unit comprises: request unit, and be used to ask the S-GW in routing optimality district, visit ground, said source to delete said routing optimization bearing, perhaps ask the PDP Context of the GGSN deletion routing optimality in routing optimality district, visit ground, said source.
6. the processing unit of routing optimization bearing as claimed in claim 4; It is characterized in that; The processing unit of said routing optimization bearing is arranged among the MME in said target routing optimality district; Said carrying processing unit comprises: notification unit, and be used to notify the MME in routing optimality district, visit ground, said source to delete said routing optimization bearing, perhaps notify the S-GW in said target routing optimality district to delete that part of route carrying that switches to said target routing optimality district.
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