CN103548387A - Switchover processing method, mobility management network element, and wireless access network element and system - Google Patents

Switchover processing method, mobility management network element, and wireless access network element and system Download PDF

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Publication number
CN103548387A
CN103548387A CN201180002286.1A CN201180002286A CN103548387A CN 103548387 A CN103548387 A CN 103548387A CN 201180002286 A CN201180002286 A CN 201180002286A CN 103548387 A CN103548387 A CN 103548387A
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network
user equipment
packet data
source
target
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CN201180002286.1A
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CN103548387B (en
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陆峰
朱奋勤
张艳平
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • 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

Abstract

The present invention relates to a switchover processing method, a mobility management network element, and a wireless access network element and system. The method includes: a source mobility management network element receives a first source to target transparent container sent by a source wireless access network element, the first source to target transparent container containing bearer information about a local access IP network packet data network connection of user equipment; judging that the local access IP network packet data network connection of the user equipment can send the first source to target transparent container and the bearer information about the local access IP network packet data network connection of the user equipment to a target wireless access network element when the target wireless access network element is retained, wherein the local access IP network packet data network connection of the user equipment is a local IP access (LIPA) packet data network connection or a selected IP traffic offload (SIPTO) packet data network connection. The present invention achieves the mobility of LIPA and SIPTO.

Description

Switchover processing method, mobility management network element, and wireless access network element and system
Method, mobile management network element, wireless access network element and the systems technology field of process switching
The present invention relates to communication technical field, more particularly to a kind of method of process switching, mobile management network element, wirelessly people's network element and system are connect.Background technology
Local IP accesses (Local IP Access, LIPA) are a kind of data distribution technologies, based on home evolved node B（Home evolved Node B) network or Home eNodeB（Home Node B) network proposition.Home evolved node B and Home eNodeB are referred to as H (e) NB in the application.User equipment (User Equipment, UE other IP devices in family or enterprise network) can be directly accessed by H (e) NB, user plane without passing through mobile operator networks, for the core network of operator, this partial service is directly to be shunted away from H (e) NB, so as to alleviate the load and transmission cost of core network.When user uses LIPA business, UE needs to set up a Packet Data Network（Packet Data Network, PDN) connection, referred to as local IP accessing group datas net（LIPA PDN) connection.
Selection IP traffic is dredged（Selected IP Traffic Offload, SIPTO) it is similar with LIPA, user can directly access specific IP network, such as Internet by H (e) NB.Equally, when user uses SIPTO business, UE needs to set up a PDN connection, referred to as SIPTO PDN connections.
When a user equipment is moving, the user equipment may be moved to another H (e) NB service range from H (e) NB service range.Now, in order to keep the continuity of business, the PDN connections that wireless access network element is set up in source need to continue reservation in Target Wireless wireless access network element.
At present, LIPA and SIPTO do not support mobility, i.e., when user equipment is moved to target H (e) NB from source H (e) NB, do not support LIPA PDN connections and SIPTO PDN connections being switched to target H (e) NB.The content of the invention
The embodiment of the present invention provides a kind of method of process switching, mobile management network element, wireless access network element and system, and ambulant problem is not supported to solve LIPA and SIPTO. The embodiment of the present invention provides a kind of method of process switching, including：
Source mobile management network element receives the radio bearer information that the first source of source wireless access network element transmission is connected to target clear container, local access IP network Packet Data Network of first source to target clear container comprising user equipment；
The mobile management network element judges that the local access IP network Packet Data Network connection of the user equipment can be when target radio access network retains, first source is sent to the RAB information of the local access IP network Packet Data Network connection of target clear container and the user equipment to target radio access network, so that target radio access network sets up carrying for the local access IP network Packet Data Network connection of the user equipment；Wherein, the local access IP network Packet Data Network of the user equipment is connected as LIPA PDN connections or SIPTO PDN connections.
The embodiment of the present invention also provides a kind of mobile management network element, including：
Receiving module, for receiving the radio bearer information that the first source that source wireless access network element is sent is connected to target clear container, local access IP network Packet Data Network of first source to target clear container comprising user equipment；
Judge module, for judging that the local access IP network Packet Data Network of the user equipment connects and can retained in target radio access network；
Sending module, for sending first source to the RAB information of the local access IP network packet datas net connection of target clear container and the user equipment to target radio access network, so that target radio access network sets up carrying for the local access IP network Packet Data Network connection of the user equipment；
The judge module judges that the local access IP network Packet Data Network connection of the user equipment can be when target radio access network retains, and sending module sends first source to the RAB information of the local access IP network Packet Data Network connection of target clear container and the user equipment to target radio access network；Wherein, the local access IP network Packet Data Network of the user equipment be connected as LIPA PDN connections or
SIPTO PDN connections.
The embodiment of the present invention also provides a kind of wireless access network element, including：
Sending module, for sending the first source to target clear container to mobile management network element, the radio bearer letter that local access IP network Packet Data Network of first source to target clear container comprising user equipment connects Breath, so that the local access IP network Packet Data Network connection of the user equipment is switched to target radio access network by the mobile management network element；
Wherein, the local access IP network Packet Data Network of the user equipment is connected as LIPA PDN connections or SIPTO PDN connections.
The embodiment of the present invention also provides a kind of system of process switching, including：
Wireless access network element, for sending the radio bearer information that the first source is connected to target clear container, local access IP network Packet Data Network of first source to target clear container comprising user equipment；
Mobile management network element, for receiving first source to target clear container, judge that the local access IP network Packet Data Network connection of the user equipment can be when target radio access network retains, first source is sent to the RAB information of the local access IP network Packet Data Network connection of target clear container and the user equipment to the target radio access network, so that the target radio access network sets up carrying for the local access IP network Packet Data Network connection of the user equipment；
Wherein, the local access IP network Packet Data Network of the user equipment is connected as LIPA PDN connections or SIPTO PDN connections.
Embodiments of the invention are by determining that target radio access network can retain the local access IP network Packet Data Network connection of user equipment, and then send comprising user equipment local access IP network Packet Data Network connect radio bearer information source to target clear container and user equipment local access IP network Packet Data Network connection RAB information to target radio access network, realize LIPA and SIPT0 mobility.Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, cylinder will be made to the required accompanying drawing used in embodiment or description of the prior art below singly to introduce, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of system architecture schematic diagram of the embodiment of the present invention；
Fig. 2 is the schematic diagram of the first Femtoce l l system of the embodiment of the present invention； Fig. 3 is the schematic diagram of the first switching flow of the embodiment of the present invention；
Fig. 4 is the schematic diagram of second of switching flow of the embodiment of the present invention；
Fig. 5 is the method flow block diagram of the first process switching provided in an embodiment of the present invention；
Fig. 6 is the schematic diagram of second of Femtoce l l system of the embodiment of the present invention；
Fig. 7 is the method flow schematic diagram of second of process switching provided in an embodiment of the present invention；
Fig. 8 is the method flow schematic diagram of the third process switching provided in an embodiment of the present invention；
Fig. 9 is the method flow schematic diagram of the 4th kind of process switching provided in an embodiment of the present invention；
Figure 10 is a kind of schematic diagram of mobile management network element provided in an embodiment of the present invention；
Figure 11 is a kind of schematic diagram of wireless access network element provided in an embodiment of the present invention；
Figure 12 is a kind of system schematic of process switching provided in an embodiment of the present invention.Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not paid belongs to the scope of protection of the invention.
The network architecture and business scenario of following examples description of the present invention are for the technical scheme of the more clear explanation embodiment of the present invention, the restriction for technical scheme provided in an embodiment of the present invention is not constituted, those of ordinary skill in the art understand, with the differentiation and the appearance of new business scene of the network architecture, technical scheme provided in an embodiment of the present invention is equally applicable for similar technical problem.
Below with femtocell（Femtoce l l) illustrate exemplified by technology.
Femtoce l l are a kind of general terms of low-consumption wireless access point technology, using the frequency spectrum of authorization, connect wireless terminal, and the terminal device such as can be mobile phone, tablet personal computer utilizes the Digital Subscriber Line of domestic household（Dig i ta l Subscr iber L ine, DSL), cable broadband access method accesses mobile operator network.
The purpose of Femtoce l l systems application is to solve blind spot area and shadow region that some signals are difficult to cover, such as the region such as tunnel, underground garage, underpass, market place builet below the ground, high-rise low layer and top layer, also Commercial center, traffic main artery, recreation center, the signal covering of the traffic hot spot region of conference centre can be solved, the communication blocking rate in these regions can be reduced and improve communication quality, also the intermediate layer of skyscraper is often deployed in, it is possible to prevente effectively from the frequent switching of mobile phone even call drop.
A kind of framework for giving family's access system with Femtocell technologies exemplary Fig. 1.As shown in figure 1, user equipment can access wireless family access point, such as：Home eNodeB（Home NodeB, HNB), home evolved node B（Home evolved NodeB,) or family's non-3 gpp WAP (Home non-3GPP Wireless Access Point HeNB, Home non-3GPP WAP), wherein 3GPP is third generation partner program, i.e. the cylinder of 3rd Generation Partnership Project claims.HNB is to operate in UMTS Terrestrial radio access network（UMTS terrestrial radio access network, UTRAN) frequency language wireless family access point, the cylinder that wherein UMTS is Universal Mobile Telecommunications System claims.HeNB is the wireless family access point of UMTS Terrestrial radio access network (Evolved UMTS terrestrial radio access network, the E-UTRAN) frequency spectrum for operating in evolution.Home non-3GPP WAP are the wireless family access point for operating in non-3GPP network spectrums, wherein non -3GPP networks can be CDMA access (Code Division Multiple Access, CDMA) network, World Interoperability for Microwave Access, WiMax（Worldwide Interoperability for Microwave Access, Wimax) network, WLAN (Wireless Local Area Network, WLAN) network or high speed packet data (High Rate Packet Data, HRPD) network etc..HNB and HeNB is referred to as H (e) NB in the application.
In Fig. 1, femto gateway（Home NodeB Gateway, HNB GW), home evolved node B gateway（Home evolved NodeB Gateway, HeNB GW) and family's non-3 gpp WAP gateway (Home non-3GPP Wireless Access Point Gateway, Home non-3GPP WAP GW) be wireless family access point Gateway Network Element, be connected respectively by generic IP access network with HNB, HeNB and Home non-3GPP WAP.One of ordinary skill in the art will appreciate that in other family's access system frameworks, wireless family access point can be joined directly together with the network element in mobile network.
Also include in Fig. 1：Mobile management entity in E-UTRAN（Mobility Management Entity ME), the non-3 gpp in Serving GPRS Support Node (Serving GPRS Supporting Node, SGSN) and non-3GPP networks in GPRS (General Packet Radio Service)/UMTS Gateway.Non-3 gpp gateway in non-3GPP networks, can be the evolution packet data gateway (Evolved Packet Data Gateway, EPDG) in WLAN, the access business network gateway in Wimax（Access Service Network Gateway, ASN GW), the access gateway (Access Gateway, AGW) in CDMA and the high-speed packet data services gateway in HRPD（HRPD Serving Gateway, HSGW) etc..
In Fig. 1, ownership data server can be home subscriber server（Home Subscriber Server, HSS) or attaching position register（Home Location Register, HLR), the signing information for storing UE.Certification, authorize accounting server（Authentication Authorization and Accounting Server, AAA Server) it is used to perform access authentication, mandate and billing function to UE.
Specific wireless family access point is accessed in order to limit UE, closed user group is introduced（Closed Subscriber Group, CSG) mechanism.One CSG region allows signing CSG UE accesses, and access is limited to unsigned CSG UE.One CSG region is with a CSG identifier（CSG ID) identify, each CSG regions include one or several cells, and the cell in same CSG regions has identical CSG ID.For a UE, it is allowed to which the CSG ID in its all CSG region accessed constitute UE permission CSG lists（Allowed CSG List), also referred to as CSG whitelist（CSG White List), the CSG white lists are included in UE subscription data and configuration is in UE.After UE access networks, mobile management network element will obtain UE subscription data from ownership data server, so as to know the information such as UE Allowed CSG List, CSG Access Controls are carried out to UE.Wherein, mobile management network element can be MME or SGSN, and ownership data server can be HSS or HLR,.
When UE is accessed by H (e) NB, if UE accesses specific IP network, such as Internet, SIPT0 technologies can be used, data transmission is directly carried out with Internet by H (e) NB, without the core net by operator, effective shunting of business is realized；In addition, in order to attract clients, operator also introduces L I PA technologies so that user can access other IP devices for being similarly in local home or business network, such as printer, facsimile machine etc. by H (e) NB.
Technical scheme provided in an embodiment of the present invention is understood in order to clearer, below by taking the Femtocell that the H enterprises of hypothesis dispose as an example.
As shown in Fig. 2 the enterprise includes region, region B and region C, belong to same local home network Network（Local Home Network, cylinder claims LHN).Region A includes H (e) NB141 and H (e) NB142, and region B includes H (e) NB143 and H (e) NB144, and region C includes H (e) NB145 and H (e) NB146.Region A H (e) NB141 and H (e) NB142 access H (e) NB GW111, region B H (e) NB143 and H (e) NB144 accesses H (e) NB GW112, region C H (e) NB145 and H (e) NB146 access H (e) NB GW113.H (e) NB GW111 and H (e) NB GW112 access mobile management network element 101, H (e) NB GW113 access mobile management network elements 102.Region A, region B and region C H (e) NB can access enterprises IP network 121 and Internetl22.Wherein, enterprises IP network 121 includes the equipment such as printer 131 and facsimile machine 132.
It should be understood by one skilled in the art that when access network is 2G/3G networks, WAP is HNB, and mobile management network element is SGSN;When access network is LTE network, WAP is HeNB, and mobile management network element is MME.
As shown in Fig. 2 user equipment 151 accesses H (e) NB146, and enterprises IP network 121 is accessed by H (e) NB146.Now, setting up has LIPA PDN connections 161.
As shown in Fig. 1, when user equipment 151 is moved in the C of region, when switching to H (e) NB145 from H (e) NB146, because prior art does not support LIPA mobility, LIPAP gangsters connection 161 can not retain in target radio access network H (e) NB145, and LIPA P gangsters connection 161 will be deactivated in moving process.
Equally, as shown in Fig. 2 working as user equipment 151 accesses H (e) NB146, and when accessing Internetl22 by H (e) NB146, foundation has SIPTO PDN connections 162.User equipment 151 is switched to after H (e) NB145 from H (e) NB146, because prior art does not support SIPT0 mobility, SIPTO P gangsters connection 162 can not retain in target radio access network H (e) NB145, and SIPTO P gangsters connection 162 will be deactivated in moving process.
There are LIPA P gangsters to connect 161 assuming that user equipment 151 is set up, the idiographic flow that user equipment 151 switches to H (e) NB145 from H (e) NB146 is as shown in Figure 3.When user equipment 151 switches to H (e) NB145 from H (e) NB146, H (e) NB146 are source wireless access network element, and H (e) NB145 are target radio access network.Because H (e) NB146 and H (e) NB145 are linked into mobile management network element 102, so the mobile management network element of source and the mobile management network element of target side are all mobile management network element 102. 201 :H (e) NB146 carry out decision-making switching；
H (e) NB146 as source H (e) NB, the target radio access network of decision-making switching, the target radio access network for needing to switch is determined according to measurement report, determines that user equipment 151 will be switched to target radio access network H (e) NB145 here.
202:H (e) NB146 send switching demand（HO Requi red) message is to mobile management network element 102;If user equipment 151 has LIPA P gangsters connection, before switching flow is initiated, H (e) NB146 need the flow for initiating to deactivate LIPA P gangsters connection.The UE contextual informations that H (e) NB146 can be locally stored according to it discriminate whether there is LIPA P gangsters connection.
UE LIPA P gangsters are connected to after source is deactivated, and H (e) NB146 build a source to target clear container（Source to Target Transparent Conta iner), and the source to target clear container is sent to mobile management network element 102 included in handoff requirement message.The radio bearer information for Packet Data Network's connection that the source needs to create to target clear container comprising target radio access network, the radio bearer information for Packet Data Network's connection that the source needs to create to the target radio access network that target clear container is included does not include the radio bearer information of above-mentioned LIPA PDN connections, i.e. the radio bearer information of the LIPA PDN connections 161 of user equipment 151 will not be comprised in the source into target clear container.Wherein, source to target clear container be a kind of cell, the cell is transparent for the network element of core net, i.e. for the network element of core net, the type of the cell can be recognized, the particular content of the cell or can not need not be parsed, and the network element of core net can not modify to the cell.Radio bearer information is to set up radio bearer between user equipment and wireless access network element to need the information such as the information used, including wireless heterogeneous networks container and switching type.
203:Mobile management network element 102 sends handover request (HO Reques t) message to H (e) NB145;The source received to target clear container, and RAB list is included in the handover request message that mobile management network element 102 is sent.Wherein, the RAB information for the user equipment Packet Data Network connection that RAB list needs to create comprising target radio access network, but not include the RAB information of LIPA P gangsters connection 161；When mobile management network element is gangster E, the RAB list is E_RABs To Be Setup Li s t, when mobile management network element is SGSN, and the RAB list is RABs To Be Setup Li s t.RAB information is wireless access network element and gateway Between set up carrying and need the information used, including carrying mark, GPRS Tunnel Protocol（GPRS Tunneling Protocol, GTP) information such as Tunnel Identifier and service quality.
204:H (e) NB145 send handover request response（HO Request Ack) to mobile management network element
102;
H (e) NB145 are set up according to the source received to target clear container and RAB list and carried, if creating successfully, and the RAB information for creating successful RAB is included in handoff request acknowledgment message.Assuming that the RAB information that includes of radio bearer information and RAB list that source is included to target clear container can not --- correspondence, handoff failure can be caused under 2G/3G networks, under LTE networks, HeNB145 can only create radio bearer information and RAB information --- corresponding radio bearer and wireless access 7 are carried.
205:Mobile management network element 102 sends switching command（HO Command) message is to H (e) NB146.
H (e) MB146, which are received, performs follow-up switching action after switching command message.
Similarly, if UE, which is set up, SIPTO P gangsters connection, in switching flow, prior art does not support SIPTO mobility, i.e. SIPTO P gangsters connection can not continue to retain in target radio access network yet.
It can be seen that, under the scene that user equipment has that LIPA P gangsters connect or SIPTO P gangsters connect, prior art does not support LIPA or SIPTO mobility, i.e. LIPA PDN connections or SIPTO PDN connections can not continue to retain in target radio access network.
Assuming that user equipment 151 is accessed in H (e) NB145, user equipment 151 is connected with LIPA P gangsters, user equipment 151 from region C be moved to region B when, H (e) NB145 are source wireless access network element, H (e) NB144 are target radio access network, because H (e) NB145 access mobile management network element 102, H (e) NB144 access mobile management network element 101, so mobile management network element 102 is source mobile management network element, mobile management network element 101 is target mobility management network element.
Idiographic flow is as shown in Figure 4：
301:H (e) NB145 carry out decision-making switching；
Step 301 is similar with step 201, and H (e) NB145 determine that user equipment 151 will be switched to target radio access network H (e) NB144.
302:H (e) NB145 send handoff requirement message to mobile management network element 102； Step 302 is similar with step 202, and the source that H (e) NB145 are built to target clear container does not include the radio bearer information that the LIPA P gangsters of user equipment 151 connect.
303 :Mobile management network element 102 sends forwarding re-positioning request（Forward Re locat ion Reques t) message is to mobile management network element 101;
The forwarding relocation request message is containing the source received to target clear container and Packet Data Network (Packet Data Ne twork, P gangsters）Context；The P gangsters context does not include the RAB information that the LIPA P gangsters of user equipment 151 connect.
304:Mobile management network element 101 sends handover request message to H (e) NB145;
Step 304 is similar with step 203, source to target clear container and RAB list is included in handover request message, the RAB list is built according to the P gangsters context of acquisition, due to the RAB information that the LIPA P gangsters not comprising user equipment 151 connect in PDN contexts, so the RAB list RAB information that equally the LIPA P gangsters not comprising user equipment 151 connect.
305 :H (e) NB145 send handoff request acknowledgment message to mobile management network element 101;
H (e) NB145 receive source to after target clear container and RAB list, set up radio bearer and RAB, and handoff request acknowledgment message is sent after being successfully established to mobile management network element 101.
306:Mobile management network element 101 sends forwarding relocation response message to mobile management network element 102;
307:Mobile management network element 102 sends switching command message to H (e) NB146;
H (e) NB146, which are received, performs switching action after switching command message.
It can be seen that, in the movement across mobile management network element, prior art does not support still LIPA mobility, i.e. LIPA P gangsters connection can not continue to retain in target radio access network.Equally, in the movement across mobile management network element, prior art does not support SIPT0 mobility yet.
To sum up, prior art does not support LIPA and SIPT0 mobility.
By analyzing above mentioned problem Producing reason, the ambulant reason for causing not support LIPA is that the radio bearer information that source wireless access network element and source mobile management network element do not connect the LIPA P gangsters of user equipment and RAB information transmission arrive target radio access network, causes target radio access network can not be set up for the LIPA P gangsters connection of user equipment and carries.
Specifically, the source that H (e) NB of source are built does not include what LIPA P gangsters connected to target clear container Text or packet data protocol（Packet Data Protocol, PDP) context does not include the RAB information that LIPA P gangsters connect, and the mobile management network element of target side does not include the RAB information that LIPA P gangsters connect similarly to the RAB list that H (e) NB of target side are sent.
Further, in the transmittance process of carrying information, if the RAB information that source is included to the radio bearer information in target clear container and RAB list can not --- correspondence, part load creating failure can be caused, if target radio access network is unsatisfactory for LIPA P gangster's establishment of connection conditions of user equipment, the establishment failure of part carrying is also resulted in, and then may result in the failure of whole switching flow.
Understand, cause not support that SIPT0 ambulant reason is similar.
In order to solve the above problems, as shown in figure 5, the embodiment of the present invention provides a kind of method of process switching, including：
401 :Source mobile management network element receives the first source that source wireless access network element sends to target clear container, the radio bearer information that first source is connected to local access IP network Packet Data Network of the target clear container comprising user equipment, the local access IP network packet data nets of the user equipment are connected as LIPA P gangsters connection or SIPTO P gangsters connection；
402:The mobile management network element judges that can the local access IP network packet datas net connection of the user equipment retain in target radio access network；
403:If the local access IP network packet datas net connection of the user equipment can retain in the target radio access network, the source mobile management network element sends first source to the RAB information of the local access IP network packet datas net connection of target clear container and the user equipment to the target radio access network, so that the target radio access network sets up carrying for the local access IP network Packet Data Network connection of the user equipment.
In embodiments of the present invention, LIPA P gangsters connection or SIPTO P gangsters connection are referred to as locally accessing the connection of IP network packet datas net, therefore, and local access I P network packet data nets are connected as LIPA P gangsters connection or SIPTO P gangsters connection.
In embodiments of the present invention, source mobile management network element is while first source that receives is to target clear container, can also receive the second source of source wireless access network element transmission to target clear container, second source to mesh Mark the radio bearer information that other Packet Data Networks of transparent vessel comprising user equipment connect, the radio bearer information of local access IP network Packet Data Network connection not comprising the user equipment, if the local access IP network Packet Data Network connection of the user equipment can not retain in the target radio access network, RAB information that second source connected to other Packet Data Networks of target clear container and the user equipment is sent to the target radio access network, so that the target radio access network sets up carrying for other Packet Data Networks connection of the user equipment, the local access IP network Packet Data Network that other Packet Data Networks connection does not include the user equipment connects.
Other Packet Data Networks in the embodiment of the present invention are connected as other all Packet Data Network's connections of the local access IP network Packet Data Network connection of exclusion of user equipment.
In the method for above-mentioned process switching, the first source to target clear container includes the local access of user equipment
The radio bearer information of IP network Packet Data Network connection refers to the radio bearer information for containing all local access IP network packet datas net connections of user equipment, and the situation of the radio bearer information of the local access IP network Packet Data Network connection of customer equipment part is contained in the absence of the first source to target clear container；The radio bearer information that the local access IP network Packet Data Network that second source does not include user equipment to target clear container connects refers to the radio bearer information for not including any local access IP network Packet Data Network connection of user equipment.Here first and second are not offered as sequencing, are for distinguishing two sources to target clear container, will not obscure.
Source mobile management network element receives the first source to being judged after target clear container, whether can in target radio access network retain, and decide whether the first source of transmission to target clear container to target radio access network according to the result of judgement if judging the local access IP network Packet Data Network connection of user equipment.When judging that target radio access network can retain the local access IP network Packet Data Network connection of user equipment, the first source of the radio bearer information that the local access IP network Packet Data Network comprising the user equipment connects is sent to the RAB information of the local access IP network Packet Data Network connection of target clear container and user equipment to target radio access network, so that wireless 7 information carrying breath and wireless access 7 that the source that target radio access network is received is included to target clear container list the information carrying of wireless access 7 breath --- the correspondence that table is included, successfully create the carrying of local access IP network Packet Data Network connection, realize LIPA and SIPT0 mobility.
Above-mentioned source mobile management network element judges that the local access IP network Packet Data Network connection of user equipment is The no premise that can retain in target radio access network is that target radio access network can physically or mechanically realize the function of creating the connection of local access IP network Packet Data Network, if target radio access network physically with enterprises IP Network Isolations, or the function of realizing local access IP network packet datas net connection is not present in target radio access network, also LIPA and S IPT0 to be solved of embodiment of the present invention mobility problem is just not present, therefore, can the local access IP network Packet Data Network for the judging user equipment connection of the embodiment of the present invention retain in target radio access network refers to：On the premise of target radio access network can physically or mechanically create the connection of local access IP network Packet Data Network, judge whether target access network member can meet the condition for the local access IP network Packet Data Network connection for creating the user equipment.
When user equipment is carried out across the switching of mobile management network element, the RAB information that source mobile management network element is sent into P gangster's contexts of the mobile management network element of target side or the Packet Data Network of the access IP networks comprising user equipment connects in PDP Context, the RAB information of Packet Data Network's connection of access IP network comprising above-mentioned user equipment in the RAB list that target mobility management network element is sent to target radio access network, with the RAB information of Packet Data Network's connection of the radio bearer information of Packet Data Network's connection of the access IP network of realizing the user equipment that the source that target radio access network is received is included to target clear container and the access IP network of the user equipment that includes of RAB list can --- correspondence.
Those of ordinary skill in the art understand, with the development of the network architecture, from now on it is possible that new mobile management network element and the wireless access network element of new support LIPA or SIPT0 technology, so method provided in an embodiment of the present invention is not defined to the source wireless access network element being related in method, target radio access network, source mobile management network element and target mobility management network element.
The switching method of the embodiment of the present invention, the first source that source wireless access network element sends is received to target clear container by source mobile management network element, radio bearer information of first source to Packet Data Network's connection of access IP network of the target clear container comprising user equipment, and source mobile management network element sends RAB information that the first source connected to the Packet Data Network of the access IP network of target clear container and user equipment to target radio access network, so that target radio access network sets up carrying for the local access IP network Packet Data Network connection of user equipment, realize LIPA and SIPT0 mobility.
The explanation implemented below in case of user equipment is set up and has LIPA P gangsters connection. In some scenarios, under the scene such as having had been moved off local home network in user equipment or have left LIPA authorized region, source wireless access network element can not effectively judge whether the local access IP network packet datas net connection of user equipment can retain in target radio access network, so source wireless access network element can not targetedly build source to target clear container, i.e. it cannot be determined whether into target clear container, the LIPA P gangsters comprising user equipment connect in source, therefore source wireless access network element needs to create two sources to target clear container, send to source mobile management network element, judged by source mobile management network element, whether judge the LIPA P gangsters connection of user equipment can retain in target radio access network, and select one of source to be sent to target clear container to target radio access network according to judged result.First source includes the radio bearer information of all Packet Data Network's connections of user equipment to target clear container, the radio bearer information that i.e. not only other Packet Data Networks comprising user equipment connect, the radio bearer information that also the LIPA P gangsters comprising user equipment connect, second source is to the radio bearer information of all other Packet Data Networks connections of the target clear container comprising user equipment, the radio bearer information that the LIPA P gangsters not comprising user equipment connect.Wherein, the radio bearer information that first source is connected to LIPA P gangsters of the target clear container comprising user equipment refers to the radio bearer information for containing all LIPA P gangsters connections of user equipment, and the situation of the radio bearer information of the LIPA P gangsters connection of customer equipment part is contained in the absence of the first source to target clear container；The radio bearer information that the LIPA P gangsters that second source does not include user equipment to target clear container connect refers to the radio bearer information for not including any L I P A P gangsters connection of user equipment.
Because target radio access network can only handle a source to target clear container, so needing to be judged on the mobile management network element of source, whether can in target radio access network retain, and select suitable source to be sent to target clear container to target radio access network according to the result of judgement if judging the LIPA P gangsters connection of user equipment.When judging that target radio access network can retain the LIPA P gangsters connection of user equipment, the first source of the radio bearer information connected comprising the LIPA P gangsters is sent to target clear container to target radio access network, when judging that target radio access network can not retain the LIPA P gangsters connection of user equipment, the second source for not including the radio bearer information that the LIPA P gangsters connect is sent to target clear container to target radio access network.
In the case where there are user equipment multiple LIPA P gangsters to connect, can source mobile management network element is connected in the LIPA P gangsters for judging user equipment when target radio access network retains, it is necessary to judge user equipment Can all L I P A P gangsters connections retain in target radio access network, when whole L I P A P gangsters connection of user equipment can retain in target radio access network, the first source is selected to be transmitted to target clear container, otherwise, the second source of selection is transmitted to target clear container.
While source mobile management network element sends the first source to target clear container to target radio access network, the wireless access information carrying that the RAB information and other Packet Data Networks for also needing to send the LIPA P gangsters connection of user equipment are connected is ceased to target radio access network, so that the RAB information that radio bearer information and RAB list that the source that target radio access network is received is included to target clear container are included --- correspondence, the carrying and the connection of other Packet Data Networks that success connects for LIPA P gangsters create carrying, realize LIPA mobility.In the case where there are user equipment multiple LIPA P gangsters to connect, the RAB information for sending the LIPA P gangsters connection of user equipment refers to the RAB information for sending all LIPA P gangsters connections of user equipment.
It is corresponding, while source mobile management network element sends the second source to target clear container to target radio access network, also need to send the RAB information of other Packet Data Networks connection of user equipment to target radio access network, so that wireless 7 information carrying breath and wireless access 7 that the source that target radio access network is received is included to target clear container list the information carrying of wireless access 7 breath --- the correspondence that table is included, successfully carrying is created for other Packet Data Networks connection of user equipment.
When user equipment is carried out across the switching of mobile management network element, the RAB information that source mobile management network element is sent into P gangster's contexts of the mobile management network element of target side or the LIPA P gangsters comprising user equipment connect in PDP Context, the RAB information that the LIPA P gangsters comprising above-mentioned user equipment connect in the RAB list that target mobility management network element is sent to H (e) NB of target side, with realize radio bearer information and the user equipment that includes of RAB list that the LIPA P gangsters for the user equipment that the source that target radio access network is received is included to target clear container connect LIPA P gangsters connection RAB information can --- correspondence.
It can be seen that, according to the situation of different movements, the RAB information of the Packet Data Network of transmission source to target clear container and user equipment connection, which is divided into, to be sent directly to target radio access network and receives and sends to target radio access network.When target radio access network and source wireless access network element access same mobile management network element, transmission refers to be sent directly to target radio access network to target radio access network； When the mobile management network element that target radio access network is different with the access of source wireless access network element, transmission is received and sent to target radio access network between referring to target radio access network, first send to target mobility management network element, then sent by target mobility management network element to target radio access network.
Understand, SIPT0 it is ambulant implement with LIPA it is ambulant implement it is similar.
To sum up, process switching method provided in an embodiment of the present invention, the first source that source wireless access network element sends is received to target clear container by source mobile management network element, radio bearer information of first source to Packet Data Network's connection of access IP network of the target clear container comprising user equipment, and source mobile management network element sends the first source and ceased to the wireless access information carrying of Packet Data Network's connection of target clear container and the access IP network of user equipment to target radio access network, so that target radio access network sets up carrying for the local access IP network Packet Data Network connection of user equipment, realize LIPA and SIPT0 mobility.
Further, target radio access network can retain the local access IP network Packet Data Network connection of user equipment, and target radio access network can not retain the local access IP network Packet Data Network of user equipment and be connected with following several schemes：
1) target radio access network and source wireless access network element are in the case of the local home network of identical, target radio access network can retain the local access IP network Packet Data Network connection of user equipment, and otherwise target radio access network can not retain the local access IP network Packet Data Network connection of user equipment.
Target radio access network and source wireless access network element show that target radio access network and source wireless access network element belong to same network in the local home network of identical, in reality scene, it can be the network of an enterprise, network of one school etc., therefore when user equipment is moved in same network, it is necessary to ensure the mobility of the local access IP network Packet Data Network connection of user equipment；When target radio access network and source wireless access network element belong to different networks, may be from the Network Mobility of an enterprise of certain building office block to the network of another enterprise in reality scene, therefore when user equipment is moved to another network, it should not continue to retain the local access IP network Packet Data Network connection of the user equipment.
Judge that target radio access network and source wireless access network element, whether in the local home network of identical, can be identified by local home network（LHN ID) judged, i.e., when the LHN ID of target radio access network and the LHN ID of source wireless access network element are identical, represent, in the local home network of identical, otherwise to represent in different local home networks.Those of ordinary skill in the art understand, with the development of technology, it is also possible to go out Other existing equivalent modes judge that target radio access network and source wireless access network element, whether in the local home network of identical, are not construed as limiting herein.
Source mobile management network element can know the LHN ID of the target radio access network and/or LHN ID of source wireless access network element by a variety of methods, include following several ways：The LHN ID for the target radio access network that source wireless access network element is sent to the source mobile management network element and/or LHN ID of source wireless access network element;Or, source mobile management network element is according to being locally configured information, and the cell ID of target radio access network and/or the cell ID of source wireless access network element know corresponding LHN ID.
Explained below in specific scene.As shown in Fig. 6, under original state, user equipment 151 is accessed in H (e) NB145, and user equipment 151 has LIPA P gangsters connection 501, assuming that user equipment 151 is continued to move to, H (e) NB144 are switched to from H (e) NB145.Idiographic flow is as shown in Figure 7：
601 :H (e) NB145 carry out decision-making switching；
H (e) NB145 as source H (e) NB, the target radio access network of decision-making switching, the target radio access network for needing to switch is determined according to measurement report, determines that user equipment 151 will be switched to target radio access network H (e) NB144 here.
602:H (e) NB145 send handoff requirement message to mobile management network element 102;
H (e) NB145 build the first source to target clear container and the second source to target clear container.The radio bearer information that first source is connected to other Packet Data Networks of transparent vessel comprising user equipment 151, the radio bearer information of the LIPA P gangsters connection 501 also comprising user equipment 151；The radio bearer information that second source is connected to other Packet Data Networks of target clear container comprising user equipment 151, the radio bearer information of the LIPA P gangsters connection 501 not comprising user equipment 151.First source of above-mentioned structure is comprised in handoff requirement message to target clear container to target clear container and the second source and sent to mobile management network element 102, in order to which whether mobile management network element 102 can retain LIPA P gangsters connection 501 according to target radio access network, to select corresponding source to be sent to target clear container to target radio access network.
Wherein, handoff requirement message can also include source wireless access network element H (e) NB145 LHN ID and/or CSG ID.
603:Whether mobile management network element 102 judges H (e) NB144 and H (e) NB145 in same local home network； Mobile management network element 102 judges whether H (e) NB144 LHN ID and H (e) NB145 LHN ID are identical, represent that H (e) NB144 and H (e) NB145 belongs to same local home network if identical, otherwise represent to be not belonging to same local home network.Wherein, source mobile management network element can know the LHN ID of source wireless access network element by handoff requirement message message;Or, source mobile management network element according to being locally configured information, and source wireless access network element cell ID（Cell ID) or CSG ID know corresponding LHN ID.On the other hand, source mobile management network element can be according to being locally configured information, and the cell ID or CSG ID of target radio access network know corresponding LHN ID.
604:Mobile management network element 102 sends and forwards relocation request message to mobile management network element 101;Forward in RELOCATION REQUEST message comprising a source to target clear container and P gangster's contexts.If H (e) NB144 and H (e) NB145 belong to same local home network, the RAB information of 501 RAB information and other Packet Data Networks connection of user equipment is then connected comprising LIPAP gangsters in P gangster's contexts comprising the first source to target clear container in forwarding RELOCATION REQUEST message；If H (e) NB144 and H (e) NB145 are not belonging to same local home network, then the second source to target clear container is included in forwarding RELOCATION REQUEST message, the RAB information that other Packet Data Networks comprising user equipment connect in P gangster's contexts, the RAB information not comprising LIPA P gangsters connection 501.
If H (e) NB144 and H (e) NB145 are not belonging to same local home network, mobile management network element 102 initiates the deactivation flow of LIPA P gangsters connection 501, the bearer context of the LIPA P gangsters connection 501 of UE and network side is deleted, network side can be the network elements such as P_GW, gangster ￡, SGSN and H (e) NB.The deactivation flow that mobile management network element 102 is initiated is also referred to as P gangsters connection and deactivates flow, including：The gateway of mobile management network element 102 sends to packet data gateway and deletes conversation request message, deletes the default bearer comprising LIPA connections 501 in conversation request message and identifies；Packet data gateway is sent to mobile management network element 102 by gateway and deletes conversational response message；Mobile management network element 102 sends to H (e) NB and deactivates bearing request message；H (e) NB send wireless heterogeneous networks reconfiguration message to UE, so that user equipment discharges resource.
605:Mobile management network element 101 sends handover request message to H (e) NB144;
Comprising the source received to target clear container and RAB list in handover request message, the RAB list is built according to the P gangsters context received, i.e., ought receive the first source to target clear , can be comprising the first source to target clear container in handover request message during container, according to P gangster's contexts, RAB list can connect 501 RAB information comprising L I P A P gangsters；When second source that receives is to target clear container, comprising the second source to target clear container in handover request message, RAB list does not include the RAB information that LIPA P gangsters connect 501.
606:H (e) NB144 send handoff request acknowledgment message to mobile management network element 101;
When H (e) NB144 have received the first source to target clear container, the LIPA P gangsters that H (e) NB144 can be in the radio bearer information and RAB list in the first source to the LIPA P gangsters connection 501 in target clear container connect 501 RAB information to connect the carrying between the carrying and wireless access network element and the gateway that create between user equipment and wireless access network element for LIPA P gangsters.As shown in Fig. 6, H (e) NB establish LIPA PDN connections 501, that is, realize movement of the LIPA PDN connections 501 from H (e) NB145 to H (e) NB144；When H (e) NB144 have received the second source to target clear container, due to all not including the carrying information that LIPA P gangsters connect 501 in the second source to target clear container and RAB list, therefore H (e) NB144 will not create carrying for LIPA P gangsters connection.
607:Mobile management network element 101 sends forwarding relocation response message to mobile management network element 102;
608 :Mobile management network element 102 sends switching command message to H (e) NB145.
H (e) NB145, which are received, performs switching action after switching command message.
It can be seen that, mobile management network element 102 is by judging source wireless access network element H (e) NB145 and target radio access network H (e) NB144 in the local home network of identical, and then the first source is sent to target clear container and the RAB information of LIPA PDN connections 501 to target radio access network H (e) NB144, target radio access network H (e) NB144 are that LIPA PDN connections 501 create corresponding carrying, LIPA P gangsters connection 501 is moved to H (e) NB144 from H (e) NB145, realize LIPA mobility.
Those of ordinary skill in the art are understood, in above-mentioned concrete scene, if user equipment 151 has SIPT0 PDN connections, SIPT0 mobility can be also realized with the method for the embodiment of the present invention.
Scheme 1) it is applied to the situation that user equipment foundation has SIPTO P gangsters connection or LIPA P gangsters to connect, following scheme, it is adaptable to which user equipment sets up the situation for there are LIPA P gangsters to connect.
When the local access IP network Packet Data Network of user equipment is connected as LIPA P gangsters connection, on the basis of the first scheme, further, target radio access network can be judged by closed user group Whether the local access IP network Packet Data Network connection of user equipment can be retained.Scheme is as follows：
2) when user equipment, which is set up, LIPA P gangsters connection, the closed user group of target radio access network and source wireless access network element where the local home network of identical and user equipment allow to access target radio access network（CSG in the case of), target radio access network can retain the LIPA P gangsters connection of user equipment；When target radio access network and source wireless access network element are in the local home network of identical, but user equipment do not allow access target radio access network where CSG in the case of, target radio access network can not retain user equipment LIPA P gangsters connection.
On the premise of target radio access network and source wireless access network element belong to same network, needed for security or business, can determine whether whether user equipment has permission the CSG into target radio access network.In reality scene, an enterprise may be divided into multiple areas, for example, research and develop area, Office Area etc., for security consideration, enterprises IP network can only be accessed in research and development area by researching and developing the user equipment in area, and can not access Office Area to access enterprises IP network.Therefore, when user equipment is moved in same network, determine whether whether user equipment allows the CSG accessed where target radio access network, as the CSG where user equipment allows access target radio access network, it is necessary to keep the LIPA P gangsters connection of user equipment in target radio access network；As the CSG where user equipment does not allow access target radio access network, it should not continue to keep the LIPA P gangsters connection of user equipment.
Judge whether user equipment allows the CSG accessed where target radio access network, whether can belong in the license closed user group list (Al lowed CSG Li s t) of user equipment to realize by the CSG ID where judging target radio access network, i.e. when the CSG ID where target radio access network are in the Al lowed CSG Li s t of user equipment, represent that user equipment allows the CSG accessed where target radio access network, otherwise represent that user equipment does not allow the CSG accessed where target radio access network.Mobile management network element can according to being locally configured, wireless access network element it is electric in start when the information that is reported to mobile management network element or the mark of local home network obtain CSG ID, mobile management network element can also obtain the Al lowed CSG Li s t of user equipment from home subscriber server, be not construed as limiting herein.With the development of technology, it is also possible to occur by other equivalent modes judge user equipment whether allow access target radio access network where CSG, be not construed as limiting herein.
Explained below in specific scene.Here illustrate or using Fig. 6 scene, such as Fig. 6 It is shown, under original state, user equipment 151 is accessed in H (e) NB145, and user equipment 151 has LIPA PDN connections 501, assuming that user equipment 151 is continued to move to, H (e) NB 144 are switched to from H (e) NB145.Assuming that the CSG ID in C areas are different from the CSG ID in B areas, idiographic flow is as shown in Figure 8：
701:H (e) NB145 carry out decision-making switching；
H (e) NB145 as source H (e) NB, the target radio access network of decision-making switching, the target radio access network for needing to switch is determined according to measurement report, determines that user equipment 151 will be switched to target radio access network H (e) NB144 here.
702:H (e) NB145 send handoff requirement message to mobile management network element 102;
H (e) NB145 build the first source to target clear container and the second source to target clear container.First source contains the radio bearer information of other Packet Data Networks connection of user equipment 151 to transparent vessel, the radio bearer information of the LIPA P gangsters connection 501 also comprising user equipment 151；The radio bearer information that second source is connected to other Packet Data Networks of target clear container comprising user equipment 151, the radio bearer information of the LIPA P gangsters connection 501 not comprising user equipment 151.First source of above-mentioned structure is comprised in handoff requirement message to target clear container to target clear container and the second source and sent to mobile management network element 102, in order to which whether mobile management network element 102 can retain LIPA P gangsters connection 501 according to target radio access network, to select corresponding source to be sent to target clear container to target radio access network.
Wherein, handoff requirement message can also include source wireless access network element H (e) NB145 LHN ID and/or CSG ID, and/or H (e) NB144 (i.e. target radio access networks）LHN ID and/or CSG ID.
Wherein, it can also include before step 702 is performed：Source wireless access network element knows the LHN ID of target radio access network and the LHN ID of source wireless access network element, if H (e) NB144 LHN ID and H (e) NB145 LHN ID are identical, then triggering performs step 702, if or H (e) NB144 LHN ID and H (e) NB145 LHN ID are differed, a source for not including the carrying that LIPA P gangsters connect then only is built to transparent vessel, the mobile management network element of source is sent to, now follow-up execution step is referring specifically to step 202.
703:Mobile management network element 102 judge H (e) NB144 and H (e) NB145 whether same local home network and judge user equipment 151 whether allow to access H (e) NB144 where CSG;
Specifically, mobile management network element 102 judges H (e) NB144 LHN ID and H (e) NB145 LHN Whether ID is identical, represents that H (e) NB144 and H (e) NB145 belongs to same local home network if identical, otherwise represents to be not belonging to same local home network.Wherein, source mobile management network element can know the LHN ID of source wireless access network element by handoff requirement message message;Or, source mobile management network element according to being locally configured information, and source wireless access network element cell ID（Cell ID) or CSG ID know corresponding LHN ID.Equally, source mobile management network element can know the LHN ID of target side wireless access network element by handoff requirement message message;Or, source mobile management network element is according to being locally configured information, and the cell ID or CSG ID of target radio access network know corresponding LHN ID.
Whether mobile management network element 102 judges H (e) NB144 CSG ID in the Allowed CSG List of user equipment 151, if including H (e) NB144 CSG ID in the Allowed CSG List of user equipment 151, then represent that user equipment 151 allows the CSG accessed where H (e) NB144, otherwise represent that user equipment 151 does not allow the CSG accessed where H (e) NB144.
704:Mobile management network element 102 sends and forwards relocation request message to mobile management network element 101;Forward in RELOCATION REQUEST message comprising a source to target clear container and P gangster's contexts.If H (e) NB144 and H (e) NB145 belong to same local home network and user equipment 151 allows the CSG where access H (e) NB144, the RAB information of 501 RAB information and other Packet Data Networks connection of user equipment is then connected comprising LIPA P gangsters in P gangster's contexts comprising the first source to target clear container in forwarding RELOCATION REQUEST message；If H (e) NB144 and H (e) NB145 belong to same local home network, but user equipment 151 does not allow the CSG accessed where H (e) NB144, then the second source to target clear container is included in forwarding RELOCATION REQUEST message, the RAB information that other Packet Data Networks comprising user equipment connect in P gangster's contexts, the wireless access 7 not comprising L I PA P gangsters connection 501 | information carrying ceases.
If H (e) NB144 and H (e) NB145 are not belonging to same local home network and user equipment 151 does not allow the CSG where access H (e) NB144, mobile management network element 102 initiates the deactivation flow of LIPA P gangsters connection 501, the load context of the LIPA P gangsters connection 501 of UE and network side is deleted, network side can be the network elements such as P-GW, gangster ￡, SGSN and H (e) NB.The deactivation flow that mobile management network element 102 is initiated is also referred to as P gangsters connection and deactivates flow, including：The gateway of mobile management network element 102 sends to packet data gateway and deletes conversation request message, deletes lacking comprising LIPA connections 501 in conversation request message Save carrying mark；Packet data gateway is sent to mobile management network element 102 by gateway and deletes conversational response message；Mobile management network element 102 sends to H (e) NB and deactivates bearing request message；H (e) NB send wireless heterogeneous networks reconfiguration message to UE, so that user equipment discharges resource.
705:Mobile management network element 101 sends handover request message to H (e) NB144;
The source received to target clear container and RAB list is included in handover request message, the RAB list is built according to the P gangsters context received, i.e. when first source that receives is to target clear container, the first source to target clear container can be included in handover request message, according to P gangster's contexts, RAB list can connect 501 RAB information comprising L I P A P gangsters；When second source that receives is to target clear container, comprising the second source to target clear container in handover request message, RAB list does not include the RAB information that LIPA P gangsters connect 501.
706:H (e) NB144 send handoff request acknowledgment message to mobile management network element 101;
When H (e) NB144 have received the first source to target clear container, H (e) NB144 can connect the RAB information of the LIPA P gangsters connection 501 in 501 radio bearer information and RAB list to connect the carrying between the carrying and wireless access network element and the gateway that create between user equipment and wireless access network element for LIPA P gangsters according to the first source to the LIPA P gangsters in target clear container, as shown in Fig. 6, H (e) NB establish LIPA PDN connections 501, , realize movement of the LIPA PDN connections 501 from H (e) NB145 to H (e) NB144；When H (e) NB144 have received the second source to target clear container, due to all not including the carrying information that LIPA P gangsters connect 501 in the second source to target clear container and RAB list, therefore H (e) NB144 will not create carrying for LIPA P gangsters connection.
707:Mobile management network element 101 sends forwarding relocation response message to mobile management network element 102;
708:Mobile management network element 102 sends switching command message to H (e) NB145.
H (e) NB145, which are received, performs switching action after switching command message.
It can be seen that, mobile management network element 102 is by judging CSGs of source wireless access network element H (e) NB145 and target radio access network H (e) NB144 where the local home network of identical and user equipment 151 allow to access target radio access network H (e) NB144, and then the first source is sent to target clear container and the RAB information of LIPA PDN connections 501 to target radio access network H (e) NB144, target radio access network H (e) NB144 are that LIPA PDN connections 501 create corresponding carrying, by LIPA PDN connections 501 from H (e) NB145 are moved to H (e) NB144, realize LIPA mobility.
Further, the situation that user equipment is moved in same CSG is a kind of special circumstances for the closed user group for judging target radio access network and source wireless access network element where the local home network of identical and user equipment allow to access target radio access network, i.e. user equipment is moved in same CSG, it necessarily disclosure satisfy that above-mentioned Rule of judgment, therefore, by judging that the CSG ID of source wireless access network element are identical with the CSG ID of target radio access network, target radio access network and source wireless access network element are met in the local home network of identical and user equipment allows the condition of access target radio access network.
In scheme 2) on the basis of, further, it can judge whether target radio access network can retain the local access IP network Packet Data Network connection of user equipment by Access Point Name.Scheme is as follows：
3) when user equipment, which is set up, LIPA P gangsters connection, the Access Point Name of the CSG and user equipment of target radio access network and source wireless access network element where the local home network of identical, user equipment allow access target radio access network LIPA P gangsters connection（Acces s Point Name, APN) allow in the case where the CSG where target radio access network is accessed, target radio access network can retain the L I PA P gangsters connection of user equipment；CSG where target radio access network and source wireless access network element allow to access target radio access network in the local home network of identical and user equipment, but in the case that the Access Point Name APN of the LIPA P gangsters of user equipment connection is not in the CSG accesses where target radio access network, target radio access network can not retain the LIPA P gangsters connection of user equipment；
Belong to same network in target radio access network and source wireless access network element, and on the premise of user equipment is had permission into CSG where target radio access network, whether allow in target radio access network where CSG access, it is possible to achieve the control accessed for enterprises IP network if determining whether the APN of the LIPA P gangsters connection access of user equipment.For example：Enterprises IP network is divided into printer network and facsimile machine network, researching and developing area can only access printer network, Office Area can be with access printer network and facsimile machine network, when user equipment has the LIPA P gangsters connection for being connected to facsimile machine network in Office Area, it is moved to behind research and development area, LIPA P gangsters connection will not be continued to retain, and user equipment can be controlled for the access control of printer network and facsimile machine network by APN identification.Therefore, when the APN of the LIPA P gangsters connection access of user equipment also allows access in the CSG where target radio access network, then need to keep the LIPA P gangsters connection of user equipment in target radio access network；Accessed when the LIPA P gangsters connection of user equipment APN does not allow access in the CSG where target radio access network, then should not continue to retain the LIPA PDN connections of user equipment.
Whether judge the APN of the LIPA P gangsters connection of user equipment allows access in the CSG where target radio access network, the APN that can be connected by whether containing the LIPA P gangsters of user equipment in the corresponding APN lists of the CSG where judging target radio access network is realized, as the APN that the LIPA P gangsters that user equipment is contained in the corresponding APN lists of the CSG where target radio access network connect, represent the APN of the LIPA P gangsters connection of user equipment allows access in the CSG where target radio access network, otherwise represent the APN of the LIPA P gangsters connection of user equipment does not allow access in the CSG where target radio access network.Mobile management network element can obtain the corresponding APN lists of some CSG from home subscriber server, be not construed as limiting herein.With the development of technology herein, it is also possible to occur judging whether the APN of LIPA PDN connections allows access in the CSG where target radio access network by other equivalent modes, be not construed as limiting.
Explained below in specific scene.Here illustrate or using Fig. 6 scene, as shown in Fig. 6, under original state, user equipment 151 is accessed in H (e) NB145, and user equipment 151 has LIPA P gangsters connection 501, user equipment 151 accesses enterprises IP network 121 by LIPA P gangsters connection 501, to use the printer that it is internal, assuming that user equipment 151 is continued to move to, H (e) NB144 are switched to from H (e) NB1450Assuming that the CSG ID in C areas are different from the CSG ID in B areas, idiographic flow is as shown in Figure 9：
801 :H (e) NB145 carry out decision-making switching；
H (e) NB145 as source H (e) NB, the target radio access network of decision-making switching, the target radio access network for needing to switch is determined according to measurement report, determines that user equipment 151 will be switched to target radio access network H (e) NB144 here.
802:H (e) NB145 send handoff requirement message to mobile management network element 102;
H (e) NB145 build the first source to target clear container and the second source to target clear container.First source contains the radio bearer information of other Packet Data Networks connection of user equipment 151 to transparent vessel, the radio bearer information of the LIPA P gangsters connection 501 also comprising user equipment 151；The radio bearer information that second source is connected to other Packet Data Networks of target clear container comprising user equipment 151, the radio bearer information of the LIPA P gangsters connection 501 not comprising user equipment 151.First source of above-mentioned structure is to target clear container and Two sources are comprised in handoff requirement message to target clear container to be sent to mobile management network element 102, in order to which whether mobile management network element 102 can retain LIPA P gangsters connection 501 according to target radio access network, to select corresponding source to be sent to target clear container to target radio access network.
Wherein, handoff requirement message can also include source wireless access network element H (e) NB145 (LHN ID and/or CSG ID, and/or H (e) NB144 (i.e. target radio access networks）LHN ID and/or CSG ID.
Wherein, it can also include before step 802 is performed：Source wireless access network element knows the LHN ID of target radio access network and the LHN ID of source wireless access network element, if H (e) NB144 LHN ID and H (e) NB145 LHN ID are identical, then triggering performs step 802, if or H (e) NB144 LHN ID and H (e) NB145 LHN ID are differed, a source for not including the carrying that LIPA P gangsters connect then only is built to transparent vessel, the mobile management network element of source is sent to, follow-up execution step is referring specifically to step 202.
803:Mobile management network element 102 judge H (e) NB144 and H (e) NB145 whether in same local home network, judge whether user equipment 151 allows to access the CSG where H (e) NB144 and judge that LIPA PDN be connecteds whether 501 APN allows to access in the CSG where H (e) NB144；
Specifically, mobile management network element 102 judges whether H (e) NB144 LHN ID and H (e) NB145 LHN ID are identical, represent that H (e) NB144 and H (e) NB145 belongs to same local home network if identical, otherwise represent to be not belonging to same local home network.Wherein, source mobile management network element can know the LHN ID of source wireless access network element by handoff requirement message message;Or, source mobile management network element according to being locally configured information, and source wireless access network element cell ID（Cell ID) or CSG ID know corresponding LHN ID.Equally, source mobile management network element can know the LHN ID of target side wireless access network element by handoff requirement message message;Or, source mobile management network element is according to being locally configured information, and the cell ID or CSG ID of target radio access network know corresponding LHN ID.
Whether mobile management network element 102 judges H (e) NB144 CSG ID in the Allowed CSG List of user equipment 151, if including H (e) NB144 CSG ID in the Allowed CSG List of user equipment 151, then represent that user equipment 151 allows the CSG accessed where H (e) NB144, otherwise represent that user equipment 151 does not allow the CSG accessed where H (e) NB144.
Whether mobile management network element 102 judges the APN of LIPA PDN connections 501 where H (e) NB144 The corresponding APN lists of CSG in, if the APN of LIPA PDN connections 501 is in the corresponding APN lists of CSG where H (e) NB144, then represent the APN of LIPA PDN connections 501 allows access in CSG where H (e) NB144, otherwise, represent the APN of IPA P gangsters connection 501 does not allow access in CSG where H (e) NB144.
804 :Mobile management network element 102 sends and forwards relocation request message to mobile management network element 101;Forward in RELOCATION REQUEST message comprising a source to target clear container and P gangster's contexts.If H (e) NB144 and H (e) NB145 belong to same local home network, user equipment 151 allow access H (e) NB144 where CSG and LIPA PDN connections 501 APN allow in the CSG where H (e) NB144 access, then comprising the first source to target clear container in forwarding RELOCATION REQUEST message, the RAB information of other Packet Data Networks connection of the RAB information comprising LIPA PDN connections 501 and user equipment in P gangster's contexts；If H (e) NB144 and H (e) NB145 belong to same local home network and user equipment 151 allows the CSG where access H (e) NB144, but the APN of L IPA P gangsters connection 501 does not allow access in the CSG where H (e) NB144, then the second source to target clear container is included in forwarding RELOCATION REQUEST message, the RAB information that other Packet Data Networks comprising user equipment connect in P gangster's contexts, the RAB information not comprising LIPA P gangsters connection 501.
If the APN that H (e) NB144 and H (e) NB145 are not belonging to same local home network, user equipment 151 and do not allow CSG the and LIPA P gangsters where accessing H (e) NB144 to connect 501 is accessed not in the CSG where H (e) NB144, mobile management network element 102 initiates the deactivation flow of LIPA P gangsters connection 501, the load context of the L IPA PDN connections 501 of UE and network side is deleted, network side can be the network elements such as P-GW, MME, SGSN and H (e) NB.The deactivation flow that mobile management network element 102 is initiated is also referred to as P gangsters connection and deactivates flow, including：The gateway of mobile management network element 102 sends to packet data gateway and deletes conversation request message, deletes the default bearer comprising LIPA connections 501 in conversation request message and identifies；Packet data gateway is sent to mobile management network element 102 by gateway and deletes conversational response message；Mobile management network element 102 sends to H (e) NB and deactivates bearing request message；H (e) NB send wireless heterogeneous networks reconfiguration message to UE, so that user equipment discharges resource.
805 :Mobile management network element 101 sends handover request message to H (e) NB144;
The source received to target clear container and RAB list, the nothing is included in handover request message Line access bearer list is built according to the P gangsters context received, i.e. when first source that receives is to target clear container, the first source to target clear container can be included in handover request message, according to P gangster's contexts, RAB list can connect 501 RAB information comprising L I P A P gangsters；When second source that receives is to target clear container, comprising the second source to target clear container in handover request message, RAB list does not include the RAB information that LIPA P gangsters connect 501.
806:H (e) NB144 send handoff request acknowledgment message to mobile management network element 101;
When H (e) NB144 have received the first source to target clear container, H (e) NB144 can connect the RAB information of the LIPA P gangsters connection 501 in 501 radio bearer information and RAB list to connect the carrying between the carrying and wireless access network element and the gateway that create between user equipment and wireless access network element for LIPA P gangsters according to the first source to the LIPA P gangsters in target clear container, as shown in Fig. 6, H (e) NB establish LIPA PDN connections 501, , realize movement of the LIPA PDN connections 501 from H (e) NB145 to H (e) NB144；When H (e) NB144 have received the second source to target clear container, due to all not including the carrying information that LIPA P gangsters connect 501 in the second source to target clear container and RAB list, therefore H (e) NB144 will not create carrying for LIPA P gangsters connection.
807:Mobile management network element 101 sends forwarding relocation response message to mobile management network element 102;
808:Mobile management network element 102 sends switching command message to H (e) NB145.
H (e) NB145, which are received, performs switching action after switching command message.
It can be seen that, mobile management network element 102 is by judging source wireless access network element H (e) NB145 and target radio access network H (e) NB144 in the local home network of identical, the APN that user equipment 151 allows CSG the and LIPA P gangsters where accessing target radio access network H (e) NB144 to connect 501 allows access in the CSG where H (e) NB144, and then send the first source and connect 501 RAB information to target radio access network H (e) NB144 to target clear container and LIPA P gangsters, target radio access network H (e) NB144 are that LIPA PDN connections 501 create corresponding carrying, LIPA PDN connections 501 are moved to H (e) NB144 from H (e) NB145, realize LIPA mobility.
In such scheme, when user equipment, which is set up, SIPT0P gangsters connection, scheme 1 can be used) judged, judge whether target radio access network can retain the SIPTO P gangsters connection of user equipment；When user equipment, which is set up, LIPA P gangsters connection, scheme 1 can be used) to 3) appointing --- individual scheme judged, Judge whether target radio access network can retain the LIPA P gangsters connection of user equipment；Scheme provided in an embodiment of the present invention is not related to user equipment while setting up the scene for having LIPA P gangsters connection and S IPTO PDN connections.
To sum up, process switching method provided in an embodiment of the present invention, the first source that source wireless access network element sends is received to target clear container by source mobile management network element, radio bearer information of first source to Packet Data Network's connection of access IP network of the target clear container comprising user equipment, and source mobile management network element sends RAB information that the first source connected to the Packet Data Network of the access IP network of target clear container and user equipment to target radio access network, so that the RAB information that radio bearer information and RAB list that the source that target radio access network is received is included to target clear container are included is corresponded, successfully create the carrying of local access IP network Packet Data Network connection, realize LIPA and S IPT0 mobility..
Corresponding mobile management network element 102 can be provided by the present embodiment in the structural representation for the mobile management network element that Figure 10 provides for another embodiment of the present invention, the corresponding source mobile management network element of above-mentioned Fig. 5 and Fig. 7, Fig. 8 and Fig. 9 mobile management network element is realized.
As shown in Figure 10, the mobile management network element 900 that the present embodiment is provided includes receiving module 901, judge module 902 and sending module 903.Wherein, receiving module 901 is used to receive the radio bearer information that the first source of source wireless access network element transmission is connected to target clear container, local access IP network Packet Data Network of first source to target clear container comprising user equipment；Judge module 902 is used to judge that can the local access I P network packet datas net connection of the user equipment to retain in target radio access network；Sending module 903 is ceased to the target radio access network for sending the wireless access information carrying that first source is connected to the local access IP network Packet Data Network of target clear container and the user equipment, so as to local access IP network Packet Data Network connection foundation carrying of the target radio access network for the user equipment；When judge module 902 judges that the local access IP network Packet Data Network connection of the user equipment can retain in the target radio access network, sending module 903 sends first source to the RAB information of the local access IP network Packet Data Network connection of target clear container and the user equipment to the target radio access network；The local access IP network Packet Data Network of the user equipment is connected as LIPA P gangsters connection or S IPTO P gangsters connection.
Further, the judge module 902 in the present embodiment includes the first judge module 9021, and whether first judge module 9021 is used to judge target radio access network and the source wireless access network element in identical LHN; When the first judge module 9021 judges target radio access network and source wireless access network element in identical LHN, judge module 902 is that the local access IP network Packet Data Network connection for judging the user equipment can retain in the target radio access network.
Further, when user equipment, which is set up, LIPA P gangsters connection, judge module 902 in the present embodiment also includes the second judge module 9022, and second judge module 9022 is used to judge whether user equipment permits the CSG accessed where target radio access network;As the CSG where the first judge module 9021 judges that target radio access network and source wireless access network element judge that user equipment license accesses the target radio access network in identical LHN and the second judge module 9022, judge module 902 is that the LIPA P gangsters connection for judging the user equipment can retain in the target radio access network.
Further, when user equipment, which is set up, LIPA P gangsters connection, judge module 902 in the present embodiment also includes the 3rd judge module 9023, and whether the APN that the 3rd judge module 9023 is used for the LIPA P gangsters connection for judging user equipment is licensed the CSG accessed where target radio access network;As the CSG where the CSG and the 3rd judge module 9023 where the first judge module 9021 judges that target radio access network and source wireless access network element judge the user equipment license access target radio access network in identical LHN, the second judge module 9022 judge that the APN of the LIPA P gangsters connection of the user equipment is licensed access target radio access network, judge module 902 is that the L IPA P gangsters connection for judging the user equipment can retain in the target radio access network.
CSG where target radio access network is identical with the CSG where the wireless access network element of source, it is a kind of special circumstances of target radio access network and source wireless access network element in the CSG where same LHN and user equipment license access target radio access network, therefore for this special circumstances, when user equipment, which is set up, L I P A P gangsters connection, judge module 902 in the present embodiment includes the 4th judge module 9024, whether the 4th judge module 9024 is used to judge target radio access network and source wireless access network element in identical CSG;When the 4th judge module 9024 judges target radio access network and source wireless access network element in identical CSG, judge module 902 is that the LIPA P gangsters connection for judging the user equipment can retain in the target radio access network.
Further, the sending module 903 of the present embodiment is additionally operable to the RAB information in the local access IP network Packet Data Network connection in first source that sends to target clear container and user equipment to Target Wireless While access network element, the RAB information of other Packet Data Networks connection of user equipment is sent to target radio access network, radio bearer information of first source to other Packet Data Networks connection of the target clear container also including user equipment, wherein, other Packet Data Networks connection does not include the local access of user equipment
IP network Packet Data Network connect, so as to target radio access network for user equipment local access IP network Packet Data Network connection set up carrying while, also can user equipment other Packet Data Networks connection set up carrying.
Mobile management network element 900 provided in an embodiment of the present invention, by determining that target radio access network can retain the local access IP network Packet Data Network connection of user equipment, and then the source of the radio bearer information that the local access IP network Packet Data Network comprising user equipment connects is sent to the RAB information of the local access IP network packet datas net connection of target clear container and user equipment to target radio access network, so that the RAB information that radio bearer information and RAB list that the source that target radio access network is received is included to target clear container are included --- correspondence, successfully create the carrying of local access IP network Packet Data Network connection, realize LIPA and SIPT0 mobility.
The structural representation for the wireless access network element that Figure 11 provides for another embodiment of the present invention, corresponding source wireless access network element H (e) NB145 is as shown in figure 11 in the corresponding source wireless access network element of above-mentioned Fig. 5 and Fig. 7, Fig. 8 and Fig. 9, the wireless access network element 1000 of the embodiment of the present invention, including：Sending module 1001, for the first source of transmission to target clear container to mobile management network element, the radio bearer information that first source is connected to local access IP network Packet Data Network of the target clear container comprising user equipment, so that the local access IP network Packet Data Network connection of the user equipment is switched to target radio access network by the mobile management network element；The local access IP network packet data nets of the user equipment are connected as LIPA P gangsters connection or SIPTO PDN connections.
Further, sending module 1001 is additionally operable to, while first source that sends is to target clear container to mobile management network element, the second source is sent to target clear container to the mobile management network element, the radio bearer information that second source is connected to other Packet Data Networks of target clear container comprising the user equipment, the radio bearer information of local access IP network Packet Data Network connection not comprising the user equipment, the local access IP network Packet Data Network that other Packet Data Networks connection does not include the user equipment connects, so as to mobility Other Packet Data Networks connection of user equipment can be switched to target radio access network by managed network element.Wireless access network element 1000 provided in an embodiment of the present invention, the source for the radio bearer information that the local access IP network packet datas net comprising user equipment is connected is sent to target clear container, so that the local access IP network Packet Data Network connection of the user equipment is switched to target radio access network by mobile management network element, LIPA and S IPT0 mobility is realized.
The system of corresponding H (e) NB145 and mobile management network element 102 composition can have the system that the present embodiment is provided to realize in the structural representation of the system for the process switching that Figure 12 provides for another embodiment of the present invention, above-mentioned Fig. 7, Fig. 8 and Fig. 9.
As shown in figure 12, the system for the process switching that the present embodiment is provided, including：Wireless access network element 1 101 and mobile management network element 11 02.Wherein, wireless access network element 1101 is used to send the radio bearer information that the first source is connected to target clear container, local access IP network Packet Data Network of first source to target clear container comprising user equipment；Mobile management network element 1102, for receiving first source to target clear container, can the local access IP network Packet Data Network connection of the user equipment be judged retain in target radio access network, if the local access IP network Packet Data Network connection of the user equipment can retain in the target radio access network, first source is sent to cease to the target radio access network to the wireless access information carrying of the local access IP network Packet Data Network connection of target clear container and the user equipment, so that the target radio access network sets up carrying for the local access IP network Packet Data Network connection of the user equipment；The local access IP network Packet Data Network of the user equipment is connected as LIPA PDN connections or S IPTO P gangsters connection.
Whether mobile management network element 1 102 can judge that can the local access IP network Packet Data Network connection of the user equipment retain in target radio access network by judging target radio access network and the source wireless access network element in identical LHN, therefore, mobile management network element 102 can be specifically for, first source is received to target clear container, judge target radio access network and the source wireless access network element whether in identical LHN, if the target radio access network and the source wireless access network element are in identical LHN, first source is sent to cease to the target radio access network to the wireless access information carrying of the local access IP network Packet Data Network connection of target clear container and the user equipment, so that the target radio access network sets up carrying for the local access IP network Packet Data Network connection of the user equipment.
When user equipment set up have L IPA P gangsters connection when, mobile management network element 1102 judge target without Whether line access member and the source wireless access network element are on the basis of identical LHN, can by judge user equipment whether permit access target radio access network where CSG come judge the user equipment local access IP network Packet Data Network connect can retain in target radio access network, therefore, mobile management network element 102 can be specifically for, first source is received to target clear container, judge target radio access network and the source wireless access network element whether in identical LHN, judge whether the user equipment permits the CSG accessed where the target radio access network, if the CSG of the target radio access network and the source wireless access network element where identical LHN and user equipment license access the target radio access network, RAB information that first source connected to the local access IP network Packet Data Network of target clear container and the user equipment is sent to the target radio access network, so that the target radio access network sets up carrying for the local access IP network Packet Data Network connection of the user equipment.
When user equipment, which is set up, LIPA P gangsters connection,Mobile management network element 1102 judge target radio access network and the source wireless access network element whether identical LHN and judge user equipment whether permit access target radio access network where CSG on the basis of,By judge user equipment LIPA P gangsters connect APN whether be licensed access the target radio access network where CSG come judge the user equipment local access IP network Packet Data Network connect can retain in target radio access network,Therefore,The mobile management network element,Can be specifically for receiving first source to target clear container,Judge target radio access network and the source wireless access network element whether in identical LHN,Judge whether the user equipment permits the CSG accessed where target radio access network,Judge whether the APN of LIPA P gangsters connection is licensed the CSG accessed where the target radio access network,If the target radio access network and the source wireless access network element are in identical LHN,The APN of CSG and LIPA P gangsters connection where the user equipment license access target radio access network are licensed the CSG accessed where the target radio access network,RAB information that first source connected to the local access IP network Packet Data Network of target clear container and the user equipment is sent to the target radio access network,So that the target radio access network sets up carrying for the local access I P network packet datas net connection of the user equipment.
CSG where target radio access network is identical with the CSG where the wireless access network element of source, it is a kind of special circumstances of target radio access network and source wireless access network element in the CSG where same LHN and user equipment license access target radio access network, therefore for this special circumstances, when user equipment is set up When having LIPA P gangsters connection, mobile management network element 1102 in the present embodiment can be specifically for receiving first source to target clear container, judge target radio access network and the source wireless access network element whether in identical CSG, if the target radio access network and the source wireless access network element are in identical CSG, first source is sent to cease to the target radio access network to the wireless access information carrying of the local access IP network Packet Data Network connection of target clear container and the user equipment, so that the target radio access network sets up carrying for the local access IP network Packet Data Network connection of the user equipment.
In order that other Packet Data Networks connection of wireless access network element switching user equipment while the local access IP network Packet Data Network connection of user equipment is switched, mobile management network element 1102, also particularly useful for, while RAB information to target radio access network that first source is connected to the local access IP network Packet Data Network of target clear container and the user equipment is sent, the RAB information of other Packet Data Networks connection of the user equipment is sent to the target radio access network, radio bearer information of first source to other Packet Data Networks connection of the target clear container also including the user equipment, wherein, the local access IP network Packet Data Network that other Packet Data Networks connection does not include the user equipment connects.
System provided in an embodiment of the present invention, first source is created to target clear container by wireless access network element, and determine that target radio access network can retain the local access IP network packet datas net connection of user equipment by mobile management network element, and then the source of the radio bearer information of local access IP network Packet Data Network connection of the transmission comprising user equipment is ceased to target radio access network to the wireless access information carrying of the local access IP network Packet Data Network connection connection of target clear container and user equipment, so that the RAB information that radio bearer information and RAB list that the source that target radio access network is received is included to target clear container are included --- correspondence, successfully create the carrying of local access IP network Packet Data Network connection, realize LIPA and SIPT0 mobility.
One of ordinary skill in the art will appreciate that：Accompanying drawing is necessary to module or flow in the schematic diagram of one embodiment, accompanying drawing not necessarily implements the present invention.
One of ordinary skill in the art will appreciate that：The module in mobile management network element in embodiment can be distributed in the mobile management network element of embodiment according to embodiment description.The module of above-described embodiment can be merged into a module, can also be further split into multiple submodule.
One of ordinary skill in the art will appreciate that：Realize that all or part of step of above method embodiment can To be completed by the related hardware of programmed instruction, foregoing program can be stored in a computer read/write memory medium, and the program upon execution, performs the step of including above method embodiment；And foregoing storage medium includes：R0M, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although the present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in previous embodiment, or carry out equivalent substitution to which part technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the spirit and scope of technical scheme of the embodiment of the present invention.

Claims (27)

  1. Claims
    1st, a kind of method of process switching, it is characterised in that including：
    Source mobile management network element receives the radio bearer information that the first source of source wireless access network element transmission is connected to target clear container, local access IP network Packet Data Network of first source to target clear container comprising user equipment；
    The mobile management network element judges that the local access IP network Packet Data Network connection of the user equipment can be when target radio access network retains, first source is sent to the RAB information of the local access IP network Packet Data Network connection of target clear container and the user equipment to the target radio access network, so that the target radio access network sets up carrying for the local access IP network Packet Data Network connection of the user equipment；
    Wherein, the local access IP network Packet Data Network of the user equipment is connected as local IP accessing group datas net（LIPA PDN) connect or select IP traffic to dredge Packet Data Network（SIPTO PDN) connection.
    2nd, the method as described in claim 1, it is characterised in that
    The mobile management network element judges that the local access IP network Packet Data Network connection of the user equipment can retain in target radio access network：The mobile management network element judges the target radio access network and the source wireless access network element in the local home network of identical（LHN ) .
    3rd, method as claimed in claim 2, it is characterised in that
    The mobile management network element judges that the target radio access network and the source wireless access network element are specially in identical LHN：The mobile management network element judges the local home network mark of the target radio access network（LHN ID) it is identical with the LHN ID of the source wireless access network element.
    4th, method as claimed in claim 2, it is characterised in that when the local access IP network packet data nets of the user equipment are connected as LIP A PDN connections,
    The mobile management network element judges that the local access IP network Packet Data Network connection of the user equipment can retain in target radio access network, including：The mobile management network element judges the closed user group where the user equipment license access target radio access network（CSG ) .
    5th, method as claimed in claim 4, it is characterised in that
    The mobile management network element judges the user equipment license access target radio access network institute CSG, including：The mobile management network element judges the closed user group mark of the target radio access network（CSG ID) in the license closed user group list of the user equipment（Allowed CSG List) in.
    6th, method as claimed in claim 4, it is characterised in that when the local access IP network packet data nets of the user equipment are connected as LIP A PDN connections,
    The mobile management network element judges that the local access IP network Packet Data Network connection of the user equipment can retain in target radio access network, including：The mobile management network element judges that the Access Point Name (APN) of the LIPA PDN connections is licensed the CSG accessed where the target radio access network.
    7th, method as claimed in claim 6, it is characterised in that
    The mobile management network element judges the CSG that the APN of the LIPA PDN connections is licensed where access target radio access network, including：The mobile management network element judges the APN of the LIPA PDN connections in the corresponding Access Point Name lists of CSG where the target radio access network（APN List) in.
    8th, the method as described in claim 1, it is characterised in that when the local access IP network packet data nets of the user equipment are connected as LIPA PDN connections,
    The mobile management network element judges that the local access IP network Packet Data Network connection of the user equipment can retain in target radio access network, including：The mobile management network element judges the target radio access network and the source wireless access network element in identical CSG.
    9th, method as claimed in claim 8, it is characterised in that
    The mobile management network element judges target radio access network and the source wireless access network element in identical CSG, including：The mobile management network element judges that the CSG ID of the target radio access network are identical with the CSG ID of the source wireless access network element.
    10th, the method as described in claim 1-9 is any, it is characterised in that methods described also includes：While the source mobile management network element sends RAB information to the target radio access network that first source is connected to the local access IP network Packet Data Network of target clear container and the user equipment, the source mobile management network element sends the RAB information of other Packet Data Networks connection of the user equipment to the target radio access network, radio bearer information of first source to other Packet Data Networks connection of the target clear container also including the user equipment, wherein, other Packet Data Networks connection The local access IP network Packet Data Network for not including the user equipment connects.
    11st, the method as described in claim 1-9 is any, it is characterized in that, the source mobile management network element sends first source to the RAB information of the local access IP network Packet Data Network connection of target clear container and the user equipment to the target radio access network, including：Send the RAB information that first source is connected to the local access IP network Packet Data Network of target clear container and the user equipment；
    If the target mobility management network element have selected new gateway, Tunnel Identifier of the RAB packet containing the new gateway distribution of the local access IP network Packet Data Network connection of the user equipment for the local access IP network Packet Data Network connection of the user equipment.
    12nd, the method as described in claim 1-10 is any, it is characterised in that methods described also includes：Source mobile management network element receives the second source that source wireless access network element sends to target clear container, the radio bearer information that second source is connected to other Packet Data Networks of target clear container comprising user equipment, the radio bearer information of the local access IP network Packet Data Network connection not comprising the user equipment；If the local access IP network Packet Data Network connection of the user equipment can not retain in the target radio access network, RAB information that second source connected to other Packet Data Networks of target clear container and the user equipment is sent to the target radio access network, so that the target radio access network sets up carrying for other Packet Data Networks connection of the user equipment, the local access IP network Packet Data Network that other Packet Data Networks connection does not include the user equipment connects.
    13rd, method as claimed in claim 12, it is characterised in that methods described also includes：Before carrying information to the target radio access network that transmission second source is connected to other Packet Data Networks of target clear container and the user equipment, the source mobile management network element deactivates the local access IP network Packet Data Network connection of the user equipment.
    14th, a kind of mobile management network element, it is characterised in that including：
    Receiving module, for receiving the radio bearer information that the first source that source wireless access network element is sent is connected to target clear container, local access IP network Packet Data Network of first source to target clear container comprising user equipment； Judge module, for judging that the local access IP network Packet Data Network of the user equipment connects and can retained in target radio access network；
    Sending module, for sending first source to the RAB information of the local access IP network Packet Data Network connection of target clear container and the user equipment to the target radio access network, so that the target radio access network sets up carrying for the local access IP network Packet Data Network connection of the user equipment；
    The judge module judges that the local access IP network Packet Data Network connection of the user equipment can be when the target radio access network retains, the RAB information that sending module transmission first source to the local access IP network Packet Data Network of target clear container and the user equipment is connected to the target radio access network；
    Wherein, the local access IP network Packet Data Network of the user equipment is connected as LIPA PDN connections or SIPTO PDN connections.
    15th, mobile management network element as claimed in claim 14, it is characterised in that
    The judge module includes the first judge module, and first judge module is used to judge the target radio access network and the source wireless access network element in identical LHN;
    The judge module judges that the local access IP network Packet Data Network connection of the user equipment can retain in the target radio access network, including：First judge module judges the target radio access network and the source wireless access network element in identical LHN.
    16th, mobile management network element as claimed in claim 15, it is characterised in that when the local access IP network Packet Data Network of the user equipment is connected as LIPA PDN connections,
    The judge module also includes the second judge module, and second judge module is used to judge the CSG where the user equipment license access target radio access network;
    The judge module judges that the local access IP network Packet Data Network connection of the user equipment can retain in the target radio access network, in addition to：Second judge module judges the CSG where the user equipment license access target radio access network.
    17th, mobile management network element as claimed in claim 16, it is characterised in that when the local access IP network Packet Data Network of the user equipment is connected as LIPA PDN connections, The judge module also includes the 3rd judge module, and the 3rd judge module is used to judge that the APN of the LIPA PDN connections to be licensed the CSG accessed where the target radio access network;
    The judge module judges that the local access IP network Packet Data Network connection of the user equipment can retain in the target radio access network, in addition to：3rd judge module judges that the APN of the LIPA PDN connections is licensed the CSG accessed where the target radio access network.
    18th, mobile management network element as claimed in claim 14, characterized in that, when the local access IP network Packet Data Network of the user equipment is connected as LIPA PDN connections,
    The judge module includes the 4th judge module, and the 4th judge module is used to judge the target radio access network and the source wireless access network element in identical CSG;
    The judge module judges that the local access IP network Packet Data Network connection of the user equipment can retain in the target radio access network, including：4th module judges the target radio access network and the source wireless access network element in identical CSG.
    19th, the mobile management network element as described in claim 14-18 is any, it is characterised in that
    The sending module is additionally operable to, while RAB information to the target radio access network that first source is connected to the local access IP network Packet Data Network of target clear container and the user equipment is sent, the RAB information of other Packet Data Networks connection of the user equipment is sent to the target radio access network, radio bearer information of first source to other Packet Data Networks connection of the target clear container also including the user equipment, wherein, the local access IP network Packet Data Network that other Packet Data Networks connection does not include the user equipment connects.
    20th, a kind of wireless access network element, it is characterised in that including：
    Sending module, for the first source of transmission to target clear container to mobile management network element, the radio bearer information that first source is connected to local access IP network Packet Data Network of the target clear container comprising user equipment, so that the local access IP network Packet Data Network connection of the user equipment is switched to target radio access network by the mobile management network element；
    Wherein, the local access IP network Packet Data Network of the user equipment is connected as LIPA PDN connections or SIPTO PDN connections.
    21st, wireless access network element as claimed in claim 20, it is characterised in that The sending module, it is additionally operable to, while first source is sent to target clear container to mobile management network element, the second source is sent to target clear container to the mobile management network element, the radio bearer information that second source is connected to other Packet Data Networks of target clear container comprising the user equipment, the radio bearer information of local access IP network Packet Data Network connection not comprising the user equipment, the local access IP network Packet Data Network that other Packet Data Networks connection does not include the user equipment connects.
    22nd, a kind of system of process switching, it is characterised in that including：
    Wireless access network element, for sending the radio bearer information that the first source is connected to target clear container, local access IP network Packet Data Network of first source to target clear container comprising user equipment；
    Mobile management network element, for receiving first source to target clear container, judge that the local access IP network Packet Data Network connection of the user equipment can be when target radio access network retains, first source is sent to the RAB information of the local access IP network Packet Data Network connection of target clear container and the user equipment to the target radio access network, so that the target radio access network sets up carrying for the local access IP network Packet Data Network connection of the user equipment；
    Wherein, the local access IP network Packet Data Network of the user equipment is connected as LIPA PDN connections or SIPTO PDN connections.
    23rd, the system as claimed in claim 22, it is characterised in that
    The mobile management network element, specifically for receiving first source to target clear container, judge the target radio access network and the source wireless access network element in identical LHN, first source is sent to the RAB information of the local access IP network Packet Data Network connection of target clear container and the user equipment to the target radio access network, so that the target radio access network sets up carrying for the local access IP network Packet Data Network connection of the user equipment.
    24th, system as claimed in claim 23, it is characterised in that when the local access IP network packet data nets of the user equipment are connected as LIP A PDN connections,
    The mobile management network element, specifically for receiving first source to target clear container, the target radio access network and the source wireless access network element are judged in the CSG where identical LHN and the user equipment license access target radio access network, send first source to the RAB information of the local access IP network Packet Data Network connection of target clear container and the user equipment to the mesh Wireless access network element is marked, so that the target radio access network sets up carrying for the local access IP network Packet Data Network connection of the user equipment.
    25th, system as claimed in claim 24, it is characterised in that when the local access IP network packet data nets of the user equipment are connected as LIP A PDN connections,
    The mobile management network element, specifically for receiving first source to target clear container, judge the target radio access network and the source wireless access network element in identical LHN, when the Α Ρ Ν of CSG and the LIPA PDN connections where the user equipment license access target radio access network are licensed the CSG where the access target radio access network, RAB information that first source connected to the local access IP network Packet Data Network of target clear container and the user equipment is sent to the target radio access network, so that the target radio access network sets up carrying for the local access IP network Packet Data Network connection of the user equipment.
    26th, the system as claimed in claim 22, it is characterised in that when the local access IP network packet data nets of the user equipment are connected as LIPA PDN connections,
    The mobile management network element, specifically for receiving first source to target clear container, judge the target radio access network and the source wireless access network element in identical CSG, first source is sent to the RAB information of the local access IP network Packet Data Network connection of target clear container and the user equipment to the target radio access network, so that the target radio access network sets up carrying for the local access IP network Packet Data Network connection of the user equipment.
    27th, the system as described in claim 22-26 is any, it is characterised in that
    The mobile management network element, also particularly useful for, while RAB information to the target radio access network that first source is connected to the local access IP network Packet Data Network of target clear container and the user equipment is sent, the RAB information of other Packet Data Networks connection of the user equipment is sent to the target radio access network, radio bearer information of first source to other Packet Data Networks connection of the target clear container also including the user equipment, wherein, the local access IP network Packet Data Network that other Packet Data Networks connection does not include the user equipment connects.
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