CN103621158A

CN103621158A - Network access method, network device access point device and mobility management entity device

Info

Publication number: CN103621158A
Application number: CN201280000780.9A
Authority: CN
Inventors: 李欢; 周青
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-06-26
Filing date: 2012-06-26
Publication date: 2014-03-05
Anticipated expiration: 2032-06-26
Also published as: WO2014000156A1; CN103621158B

Abstract

The present invention is applied to the technical field of communications, and provided are a network access method, a network device access point device and an MME device. The method comprises: a user equipment access point (UAP) obtaining a user identifier of user equipment (UE); sending to an MME a first PDN connection establishment request used for establishing a PDN connection for the UE, the first PDN connection establishment request containing the user identifier of the UE and a user identifier of the UAP; and receiving a first PDN connection establishment response sent by the MME, and establishing the context of the PDN connection of the UE, so that the UE can access a PDN via an allocated IP address, a mobile operator can separately charge or legally monitor each UE, and the UE can obtain resources allocated thereto by a mobile network through the allocated IP address and a QoS policy thereof, thereby increasing the security and the quality of service of the UE.

Description

Method for network access, network equipment access point apparatus and mobility management entity device

Technical field

The invention belongs to communication technical field, more particularly to method for network access, network equipment access point apparatus, mobility management entity device.

Background technology

In the prior art, in order to improve the stability and robustness of mobile network, some terminal devices can not only be used for user equipment（User Equipment, UE）For mobile communication, can also as wireless network WiFi（Wireless Fidelity, also known as 802.11b, Wireless Fidelity）Access point, these terminal devices are referred to as UE access points（UE Access Point, UAP）, and UE then can be by these UAP access to mobile network, for example, having the UE of mobile network's access capability and WiFi access capabilities simultaneously before UAP hot spot coverages are entered, UE can pass through mobile network（For example, 3GPP networks or non-3 GPP network）Establish Packet Data Network（Packet Data Network, PDN）Connection, and the service of mobile network's offer is provided.When UE enters UAP hot spot coverages, if mobile network base station signal weakens, UE can then continue to access network by UAP access to mobile network.

In specific communication process, after UE is by UAP access to mobile network, interacted when the packet of UE transmitting-receivings passes through UAP using UAP grouped data connection with external network, such as PDN.In this case, mobile network perceives the presence less than UE.Therefore, it is impossible to distribute independent resource for UE, it is difficult to ensure service quality（Quality of Service, QoS）.

Technical problem

The embodiment of the present invention provides method for network access, network equipment access point apparatus, mobility management entity device, to better ensure that UE carries out the service quality of network insertion by UAP.

Technical solution

On the one hand, the embodiments of the invention provide a kind of method for network access, this method includes：

User equipment access point UAP obtains user's mark of user equipment (UE)；

Request is set up to mobility management entity MME the first PDN connections sent for setting up the connection of grouped data network PDN for the UE, the user that user's mark comprising the UE and the UAP in request are set up in the first PDN connections identifies；

The first PDN connection establishment responses that the MME is sent are received, the PDN connection contexts of the UE are set up.

On the other hand, the embodiment of the present invention additionally provides a kind of user equipment access point apparatus, including：

User's mark acquiring unit, the user for obtaining user equipment (UE) identifies；

Messaging unit is set up in first connection, the first PDN connections for being sent to mobility management entity MME for setting up PDN connections for the UE, which are set up, asks, the user that user's mark comprising the UE and the UAP in request are set up in the first PDN connections identifies, and receives the first PDN connection establishment responses that the MME is sent；And

Connection establishment unit, the PDN connection contexts for setting up the UE.

On the other hand, the embodiment of the present invention additionally provides a kind of method for network access, and methods described includes：

Request is set up in the first PDN connections for setting up the connection of grouped data network PDN for user equipment (UE) that reception user equipment access point UAP is sent, user's mark comprising the UE and user's mark of the UAP in the first PDN connections foundation request；

Sent to packet data network PDN Gateway and create session request, user of the establishment session request comprising the UE identifies；

Receive the establishment session request response that the PDN Gateway is sent；

The PDN connection contexts of the PDN connections of the UE are set up, the first PDN connection establishment responses are sent to the UAP.

On the other hand, the embodiment of the present invention additionally provides a kind of mobility management entity device, including：

Messaging unit is set up in first connection, request is set up in the first PDN connections for setting up the connection of grouped data network PDN for user equipment (UE) for receiving user equipment access point UAP transmissions, user's mark comprising the UE and user's mark of the UAP in the first PDN connections foundation request；

Conversation message Transmit-Receive Unit is created, session request is created for being sent to PDN Gateway, the user that the establishment session request includes the UE identifies, the establishment session request response that the PDN Gateway is sent is received；And

Second connection establishment unit, the PDN connection contexts for setting up the UE；

Messaging unit is set up in first connection, is additionally operable to send the first PDN network connection establishment responses to the UAP.

Beneficial effect

By method and apparatus provided in an embodiment of the present invention, after UE sets up WiFi connections by WiFi attachments, UAP obtains UE user's mark, and sending PDN connections foundation to MME asks, and is that UE individually sets up PDN connections.Therefore, mobile network can distribute independent resource, including IP address, qos policy and charging regulation for UE, can better ensure that UE passes through the service quality after UAP access networks.Meanwhile, mobile network can be better achieved UE is managed independently.

Brief description of the drawings

Fig. 1 is the implementation process figure of method for network access provided in an embodiment of the present invention；

Fig. 2 is the implementation process figure of method for network access provided in an embodiment of the present invention；

Fig. 3 is the implementation process figure of method for network access provided in an embodiment of the present invention；

Fig. 4 is the implementation process figure of method for network access provided in an embodiment of the present invention；

Fig. 5 is the interaction diagrams of method for network access provided in an embodiment of the present invention；

Fig. 6 is the interaction diagrams of method for network access provided in an embodiment of the present invention；

Fig. 7 is the interaction diagrams of method for network access provided in an embodiment of the present invention；

Fig. 8 is the interaction diagrams of method for network access provided in an embodiment of the present invention；

Fig. 9 is the structural representation of user equipment access point apparatus provided in an embodiment of the present invention；

Figure 10 is the structural representation of user equipment access point apparatus provided in an embodiment of the present invention；

Figure 11 is the structural representation of user equipment access point apparatus provided in an embodiment of the present invention；

Figure 11 a are user's mark acquiring unit structural representations of the embodiment of the present invention；

Figure 12 is the structural representation of mobility management entity device provided in an embodiment of the present invention；

Figure 13 is the structural representation of mobility management entity device provided in an embodiment of the present invention；

Figure 14 is the structural representation of mobility management entity device provided in an embodiment of the present invention；

Figure 15 is the structural representation of mobility management entity device provided in an embodiment of the present invention.

Embodiments of the present invention

In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with drawings and Examples, the present invention will be described in further detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.

The core net of wireless evolution network mainly includes mobility management entity（Mobility Management Entity, MME）, gateway（Serving Gateway, SGW）, PDN Gateway（PDN Gateway, PGW）Three functives.Wherein, MME is responsible for the Non-Access Stratum between UAP/UE（Non-access Stratum, NAS）Signaling is encrypted, and is UAP/UE distribution interim subscriber identities, and the selection core network element such as SGW and PDN Gateway for example can correspond to current Universal Mobile Telecommunications System there is provided roaming, tracking, peace congruous function（Universal Mobile Telecommunications System, UMTS）Internal services GPRS Support Node（Serving GPRS SUPPORT NODE, SGSN）Control plane part.SGW is local evolved base station（evolved Node B, eNodeB）Between the mobility anchor point that switches, and provide Lawful Interception correlation function.PDN Gateway is then responsible for station address distribution, the execution of policy control and charging regulation and and Lawful Interception correlation function.Home network server（Home Subscriber Server, HSS）Subscription data for storing user.Policy charging rule function（Policy Charging Rule Function, PCRF）Strategy and charging control rule are provided.Embodiments of the invention can apply in the core net of wireless evolution network.

In the method for network access that the present invention implements offer, UE is linked into mobile network by UAP, is that UE sets up PDN connections, it is easy to ensure UE service quality.Mobile network can be 3GPP networks, non-3 GPP network etc..Can be WLAN connection, such as WiFi connections, WAPI between UE and UAP（Wireless LAN Authentication and Privacy Infrastructure, WLAN authentication and privacy infrastructure）Connection etc..

Fig. 1 shows the implementation process of method for network access provided in an embodiment of the present invention, and details are as follows：

In step S101, UAP obtains UE user's mark.

The user that UAP can obtain UE by the WLAN connection between UE identifies.In addition to user identifies, UAP can also obtain UE APN（Access Point Name, APN）, APN may be used to indicate the access point for the PDN connections that request is set up, and MME is then according to corresponding with the APN data gateway of APN searchings.

UE user's mark can be international mobile subscriber identity（International Mobile Subscriber Identification, IMSI）, mobile station International Integrated Services digital network（Integrated Services Digital Network, ISDN）Number（Mobile Station international ISDN Number, MSISDN）, The mobile machine identification in the world（International Mobile Equipment Identity, IMEI）, or medium education（Media Access Control, MAC）Address etc..

The user that acquisition request UE is set up in the PDN connections that UAP can be sent by receiving UE identifies, for example：UAP, which receives UE and set up by the 2nd PDN connections of WiFi linkup transmits, to be asked, and the 2nd PDN connections are set up the user comprising the UE in request and identified, or the user of the UE identifies APN with the UE.

Or, UAP, which can receive UE and be set up by the 3rd PDN connections of WiFi linkup transmits, to be asked, and the first mark comprising UE in request is set up in the 3rd PDN connections, or UE the first mark and APN, then UAP be designated UE distributing users according to the first of the UE and identify.

Alternatively, it is also possible to pass through extensible authentication protocol（Extensible Authentication Protocol, EAP）Request obtain UE user's mark, for example：UAP sends EAP Request to UE, and the EAP responses that reception UE is sent, the EAP responses include UE user's mark, or UE user identifies and APN.Or, UAP can send EAP Request to the UE, receive the EAP responses that UE is sent, and the EAP responses include UE the first mark, or UE the first mark and the APN, are UE distributing users mark.

In addition it is also possible to ask the user for carrying out obtaining UE to identify by dynamic host configuration protocol DHCP, such as：UAP receives the DHCP that UE is sended over（Dynamic Host Configuration Protocol, DHCP）Request, the DHCP request includes UE user's mark, or UE user's mark and UE APN；Or, UAP receives the DHCP requests that send over of UE, and the DHCP request includes UE the first mark, or UE the first mark and APN, be that UE distributing users are identified.

The first mark in the embodiment of the present invention can be UE MAC Address, and the IP address used in a wireless local area network etc. is identified.UAP can identify the UE in a mobile network without using first mark, but be designated UE according to first and distribute user's mark for mobile network.For example, when UE register and do not registered in a mobile network in UAP, the first mark can be UE MAC Address, and UAP can distribute an IMSI number for the UE, and the operation such as PDN connections is set up for UE for performing.

In step s 102, UAP sets up to MME the first PDN connections sent for setting up PDN connections for UE and asked, and the user that user's mark comprising UE and UAP in request are set up in the first PDN connections identifies.In the prior art, UAP can perform attachment, attachment removal, set up the existing procedures such as PDN connections in itself as a user equipment.When setting up UAP oneself PDN connections, user's mark that the user included in request is designated UAP oneself is set up in the PDN connections that UAP is sent to MME.Unlike the prior art, request is set up in the first PDN connections sent in a step 102, contains UE user's mark and UAP user identifies, the PDN connections for setting up UE.Herein, UAP user's mark is for notifying request is set up in the MME connections to be the message for having adhered to successful user equipment transmission, and UE user is identified for notifying MME to be that the UE sets up PDN connections.

In step s 103, UAP receives the first PDN connection establishment responses that MME is sent, and sets up UE PDN connection contexts.UAP establishes UE PDN connection contexts, that is, UAP is that UE establishes PDN connections.PDN connections context is used for characterizing corresponding PDN connections.The PDN is connected to UE and accesses PDN by UAP.

After the PDN connections for establishing UE, mobile network can utilize the PDN connection contexts of the UE, be that UE distributes independent resource, such as IP address, qos policy and charging regulation, service is accessed to the UE PDN for providing the qos requirement for meeting the UE, it is easy to ensure UE service quality.Meanwhile, UE is managed according to the PDN connection contexts set up for UE, so as to also ensure that Mobile Network Operator is managed independently to UE.

After the PDN connections for establishing UE over the mobile network by UAP, the PDN connections can be discharged when needing, for example, when UE leaves UAP hotspot range, UE sends connection release request to UAP or attachment removal is asked, PDN connection release requests are sent to MME so as to trigger UAP, or UAP actively sends PDN connection release requests to MME.UE PDN connections are discharged, can be realized by following step：

（a）UAP is identified to the MME users for sending user's mark comprising UE and UAP in the first PDN connection release requests, the first PDN connection release requests.First PDN connection release requests are used for the PDN connections for discharging UE.UAP user's mark is for notifying the MME requests to be the request that UAP is sent.

（b）UAP receives the first PDN connection release responses that MME is sent, and deletes UE PDN connection contexts.

In this embodiment it is possible to which independently the PDN connections to UE are managed.For example, when multiple UE establish PDN connections by UAP, when one of UE PDN connections need release, can individually discharge the connection of the UE, without influencing whether other UE, realize more flexible management.

On the basis of step S101 to step S103 is performed, when UAP will discharge the PDN connections of the UE, UAP can send attachment removal request to MME.For example, when UAP needs attachment removal as a user equipment in itself, in addition it is also necessary to the PDN connections for the UE that release has been connected.It can be achieved by the steps of：

（c）UAP sends attachment removal request to MME, and the user of user mark and UAP of the attachment removal request bag containing UE identifies, or, user's mark comprising UAP.The attachment removal request sent by UAP, can be used for the PDN connections for being released through the UE of UAP foundation.When user's mark comprising UE in attachment removal request and UAP user's mark, MME can identify the PDN connections for the UE for being released through UAP foundation according to UE user.When user of the attachment removal request bag containing UAP identifies, MME can be identified according to UAP user, be released through the UE of UAP foundation PDN connections.

（d）UAP receives the attachment removal received message that MME is sent.

（e）UAP deletes UE PDN connection contexts.

On the basis of step S101 to step S103 is performed, UE is set up after PDN connections by UAP, if UAP positions change, and can also be updated by position update flow come the position to UE.Location updating can be realized by following steps：

（f）UAP sends the position updating request of the position for updating UE to MME, and the position updating request includes UAP user's mark, or the mark of the user comprising UE and UAP user identify.When UAP position needs to update, UE position is also required to correspondingly update, the position updating request for updating UAP positions, while can also be the position updating request for updating UE position.

（g）UAP receives the location updating response that MME is sent.

In the embodiments described above, on the basis of step S101 to step S103, UE is set up after PDN connections over the mobile network by UAP, and UAP further can send PDN Connection Releases to MME or attachment removal is asked, to discharge the resource that UAP and MME are distributed as UE.When UE or UAP location updating, position updating request is sent to MME by UAP, UE or UAP position is updated in time.

It will be appreciated by persons skilled in the art that after UE PDN connections are established, before release UE PDN connections, it may be necessary to UE position is updated, it is also possible to UE position need not be updated.

Fig. 2 shows the flow of method for network access provided in an embodiment of the present invention, and MME receives UAP and set up for the PDN connections that UE is sent after request, is that UE sets up PDN connection contexts.The UAP corresponding with MME implementation process implementation process may be referred to Fig. 1 flow.

In step s 201, the first PDN connections for setting up PDN connections for UE of MME receptions UAP transmissions, which are set up, asks, user's mark comprising UE and UAP user's mark during the first PDN connections foundation is asked.

In step S202, MME is sent to PDN Gateway creates session request, and the user that the establishment session request includes UE identifies.

User's mark that MME can be set up according to the first PDN connections in request obtains UE subscription data from HSS, the APN selection PDN Gateway in subscription data.Or, when including the APN of the UE in the first PDN connection requests, then MME can select PDN Gateway according to the APN.Send and create session request via SGW to PDN Gateway, creating session request includes UE user's mark, can also include UE APN.

PDN Gateway is received after establishment session request, initiates IP connected reference networks（IP-Connectivity Access Network, IP-CAN）Session establishment, IP-CAN sessions are set up with PCRF, obtain strategy and charging control corresponding to UE PDN connections（Policy Charging Control, PCC）Rule, and UE PDN connection contexts are created, send and create session request response via SGW to MME.It can include distributing to UE IP address, QoS information etc. in establishment session request response.

In step S203, MME receives the establishment session request response that PDN Gateway is sent.

In step S204, MME sets up UE PDN connection contexts, and the first PDN connection establishment responses are sent to UAP.

After PDN connection contexts are established for UE, mobile network can be that UE distributes independent resource by UAP, such as IP address, qos policy and charging regulation, the PDN access services for meeting its qos requirement be provided to UE, it is easy to ensure UE service quality.Meanwhile, UE is managed according to the PDN connection contexts set up for UE, easily realizes that Mobile Network Operator is managed independently to UE.

Fig. 3 shows the flow for the method for network access that MME provided in an embodiment of the present invention is realized, details are as follows.The UAP corresponding with MME implementation process implementation process may be referred to Fig. 1 flow.

In step S301, request is set up in the first PDN connections for setting up PDN connections for UE that MME receives UAP transmissions, user's mark comprising UE and user's mark of the UAP during the first PDN connections foundation is asked.

In step s 302, MME is sent to PDN Gateway creates session request, and the user that the establishment session request includes UE identifies.

In step S303, MME receives the establishment session request response that PDN Gateway is sent.

In step s 304, MME sets up UE PDN connection contexts, and the first PDN connection establishment responses are sent to UAP.

In step S305, the incidence relation that MME is set up between UAP and UE using UAP user's mark and UE user's mark.

After step 305, step 306 or step 307 can be performed.

In step S306, MME receives the position updating request for the mark of the user comprising UAP that UAP is sent, and according to incidence relation, location updating is carried out to UE, location updating response message is sent to UAP.By step 306, in UAP location updatings, the position for the UE being associated is updated in time.In addition, when there is multiple UE to be associated with UAP, multiple UE PDN connections, saving signaling can be discharged by receiving an attachment removal message.

In step S307, MME receives the attachment removal request for the mark of the user comprising UAP that UAP is sent, and according to the incidence relation between the UAP and UE of foundation, discharges UE PDN connections, attachment removal received message is sent to UAP.By step 307, in UAP attachment removals, release is connected with the UE PDN of UAP associations, it is to avoid the waste of resource.In addition, when there is multiple UE to be associated with UAP, multiple UE PDN connections, saving signaling can be discharged by receiving an attachment removal message.

It is understood that can be after the position updating request for receiving UAP transmissions is updated to UE position, then receive attachment removal request UE PDN connections are discharged.

According to the incidence relation between the UAP and UE of foundation, release UE PDN connections can be accomplished in the following manner：

（1）MME is identified according to the incidence relation between UAP and UE and UAP user, it is determined that needing the UE of attachment removal user to identify, is sent to PDN Gateway and is deleted conversation request message, the user that the deletion conversation request message includes UE identifies.

（2）MME receives the deletion session request response that PDN Gateway is sent.

（3）MME deletes UE PDN connection contexts.

In embodiments of the present invention, MME is receiving when being asked comprising the attachment removal that UAP user identifies of UAP transmissions, according to the incidence relation between the UAP and UE of foundation, it may be determined that UE PDN connections are also required to release, so as to discharge UE PDN connections.

According to UAP and UE incidence relation, UE location updating can be accomplished in the following manner：

Identified according to the incidence relation between UAP and UE and UAP user, it is determined that needing the UE of location updating, the UAP included using position updating request location updating message updates UE positional information.

Fig. 4 shows the flow for the method for network access that MME provided in an embodiment of the present invention is realized, details are as follows：

In step S401, request is set up in the first PDN connections for setting up PDN connections for user equipment (UE) that MME receives UAP transmissions, user's mark comprising the UE and user's mark of the UAP during the first PDN connections foundation is asked.

In step S402, MME is sent to PDN Gateway creates session request, and the user that the establishment session request includes UE identifies.

In step S403, MME receives the establishment session request response that PDN Gateway is sent.

In step s 404, MME sets up UE PDN connection contexts, and the first PDN connection establishment responses are sent to UAP.

In step S405, MME receives the attachment removal request for being used to discharge UE PDN connections that UAP is sent, and the attachment removal request includes UAP user's mark and UE user identifies.

In step S406, MME discharges UE PDN connections.

In step S 407, MME sends attachment removal received message to UAP.

In the present embodiment, MME does not set up UAP and UE incidence relation.When MME receives the attachment removal request of user's mark comprising UAP and UE user's mark, identified according to UE user, discharge the PDN connections of the UE.MME also can carry out attachment removal in itself after attachment removal request is received to UAP.

In another embodiment of the present invention, MME is that UE is set up after PDN connection contexts by UAP, receive the first PDN connection release requests for being used to discharge the PDN connections of the UE of UAP transmissions, and the first user's mark comprising UE in PDN connection release requests and during UAP user's mark, MME discharges the first PDN connections of the UE, and sends the first PDN connection release responses to UAP.In this embodiment, the release of the PDN connections to UE is realized by sending PDN connection release requests.

In an alternative embodiment of the invention, MME is that UE is set up after PDN connection contexts by UAP, MME receives the position updating request for being used to update the position of the UE of UAP transmissions, and when the position updating request includes the position after UAP renewal, UAP user identifies and UE user identifies, use the position after UAP renewal, location updating is carried out to UE, location updating response message is sent to UAP.So, the location updating for the UE that PDN connections are set up by UAP is realized.

Fig. 5 shows the flow of method for network access provided in an embodiment of the present invention, and UAP adheres to over the mobile network, and establishes PDN connections, and UE is then connected by WiFi network attachment with UAP.Mobile network can be 3GPP networks or non-3 GPP network, and this is introduced exemplified by sentencing 3GPP networks.Details are as follows for each step in Fig. 5：

In step S501, the user that UAP obtains UE by WiFi connections identifies.

UE user's mark can be IMSI, MSISDN, IMEI, MAC Address etc., and APN may be used to indicate the access point for the PDN connections that request is set up, and PDN then finds corresponding data gateway according to APN.

In step S502, UAP sets up to MME the first PDN connections sent for setting up PDN connections for UE and asked, and the user that user's mark comprising the UE and the UAP in request are set up in the first PDN connections identifies.

Alternatively, the first PDN connection requests can use the NAS between UAP and MME to encapsulate and be sent to MME, although use the NAS between UAP and MME to encapsulate, but be not used to set up PDN connections for UAP oneself, but set up PDN connections for UE.

In step S503, MME identifies the subscription data that UE is obtained from HSS according to the UE received user.

In step S504, APNs of the MME in subscription data or the APN selection PDN Gateway in the first PDN connection requests send and create session request to SGW（It is not drawn into figure）, PDN Gateway is re-send to, including UE user's mark and/or UE APN.Alternatively, UAP user's mark can also be included by creating in session request.If also the user including UAP identifies in the establishment session request that PDN Gateway is received, PDN Gateway can set up the incidence relation that UAP user's mark and UE user identify, and UE bill is associated with UAP bill in subsequent charging.MME can also determine PDN Gateway according to the information of configuration, now, and MME just can be without carrying out step S503.

In step S505, PDN Gateway initiates IP-CAN Session establishment, IP-CAN sessions are set up with PCRF, obtain the corresponding PCC rules of UE PDN connections.

In step S506, PDN Gateway creates UE PDN connection contexts, sends and creates session request response via SGW to MME, wherein, the establishment session request can be including distributing to UE IP address in responding, the information such as QoS.

In step s 507, MME sends the first PDN connection establishment responses to UAP, and the first PDN, which sets up connection response, can include the IP address that PDN Gateway distributes to UE.

In embodiments of the present invention, after UE PDN connections are set up, if the PDN connection requests that MME is received in step S502 include UAP user's mark and UE user identifies, MME can set up UAP and UE incidence relation.MME gets up UAP and UE bindings, that is, associates.For example, UAP user's mark and UE user's mark binding can be got up.UAP user's mark can be IMSI, MSISDN, IMEI or MAC Address etc., and UE user's mark can be IMSI, MSISDN, IMEI or MAC Address etc..According to the incidence relation between UAP and UE, MME to UAP and can pass through the mobile management that merges of UE and session management that UAP accesses PDN.

In step S508, UAP is received after the first PDN connection responses, sets up UE PDN connection contexts.It is the information such as the IP address that PDN Gateway is UE distribution that can include in the PDN connection contexts.

In step S509, PDN Gateway can be that the IP address that UE is distributed is sent to UE by UAP.UE can use the IP address to receive or send packet, and UAP receives or forwarded UE packet from UE PDN connections using the IP address.Now, PDN Gateway can be forwarded, parsed, Lawful Interception and QoS of survice are controlled, so as to be easy to ensure UE service quality according to UE qos policy and PCC strategies etc. to UE packet data packages.Or, UAP is without being that the IP address that UE is distributed is sent to UE by PDN Gateway, and UAP uses network address translation（Network Address Translation, NAT）Mode is connected as the packet that UE is received or sent UE using UE PDN.For example, UAP is that UE is assigned with IP address in WiFi network, UE transmits packets to UAP using the UAP IP address distributed, and this IP address is converted into PDN by UAP again Network is the IP address that UE is distributed, and forwards the packet from the PDN connections for UE.Similarly, UAP receives the packet for being sent to UE from PDN connections, and the wherein packet includes the IP address distributed in PDN connection responses for UE, and it is the IP address that UE is distributed that this IP address is converted into UAP by UAP, and forwards the packet to UE.

UE user's mark is obtained in step S501 to be obtained in the following manner：

UAP, which receives UE and set up by the 2nd PDN connections of WiFi linkup transmits, to be asked, and the 2nd PDN connections are set up the user comprising UE in request and identified, or UE user identifies APN with UE；Or,

UAP, which receives UE and set up by the 3rd PDN connections of WiFi linkup transmits, to be asked, and the first mark comprising UE in request is set up in the 3rd PDN connections, or UE the first mark and UE APN, receive after the 3rd PDN connections foundation asks, be that UE distributing users are identified.

UAP is received after the first mark, is UE distributing users mark, and user mark can be mark globally unique between mark locally-unique on the UAP or difference UAP.If locally-unique mark, it can be identified by UAP and UE mark determines the UE globally uniquely jointly.For example, when follow-up MME sets up the context of PDN connections of the UE, being identified using UAP and UE mark determining the UE globally uniquely jointly.

Fig. 6 shows the flow of method for network access provided in an embodiment of the present invention, and UAP adheres to over the mobile network, and establishes PDN connections, and UE is then connected by WiFi network attachment with UAP.Mobile network can be 3GPP networks or non-3 GPP network, and this is introduced exemplified by sentencing 3GPP networks.UE authentication information can be obtained by way of interaction EAP message in the flow.

In step s 601, UAP sends EAP Request to UE.

In step S602, the EAP responses that UAP receptions UE is sent, EAP responses include UE user's mark, or UE user identifies and APN；Or,

Receive UE send EAP response, the EAP response include UE first mark, or UE first mark and APN, receive EAP response after, according to first be designated UE distributing users identify.

Step S603 to S609 is referred to step S502 to S508, will not be repeated here.

In step S610, UAP sends EAP success messages to UE, and it is the IP address that UE is distributed that the success message, which can include PDN Gateway, can not also be included.

UE can use PDN Gateway to be communicated for the UE IP address distributed, and NAT modes can also be used to be communicated, the explanation to step 509 is may refer to, here is omitted.In embodiments of the present invention, the security in data transmission procedure can be improved using EAP protocol.

Fig. 7 shows the flow of method for network access provided in an embodiment of the present invention, and UAP adheres to over the mobile network, and establishes PDN connections, and UE is then connected by WiFi network attachment with UAP.Mobile network can be 3GPP networks or non-3 GPP network, and this is introduced exemplified by sentencing 3GPP networks. UE authentication information can be obtained by way of interaction dhcp message in the flow.

In step s 701, the DHCP requests that send over of UE are received, the DHCP request includes UE user's mark, or UE user's mark and UE APN.

Alternatively, step S701 can be：Receive the DHCP requests that send over of UE, the DHCP request includes UE the first mark, or UE the first mark and UE APN, receive after DHCP request, first be designated UE distributing users according to this and identify.

Step S702 to S708 is referred to step S502 to S508 description, will not be repeated here.

In step S709, UAP sends dhcp response to UE.IP address of the PDN Gateway for UE distribution can be included in the dhcp response so that UE is communicated using the address.When using NAT modes, the IP address that UAP is UE distribution can also be included in the dhcp response.The description that may refer to for step S509 is described in detail.

Fig. 8 shows a kind of interaction flow of method for network access provided in an embodiment of the present invention, in the flow, and UE is attached to UAP by WiFi network, and the PDN that UAP is established between PDN Gateway is connected, also, is that UE also establishes PDN connections by UAP.The step of including to the flow, details are as follows：

In step S801, UAP sends attachment removal to MME and asked.

Alternatively, UAP can also send PDN connection release requests to MME.

The user that the connection release request or attachment removal request can include UAP identifies, or the mark of the user comprising UE and UAP user's mark.

It can be triggered by UAP itself that UAP, which sends attachment removal request or PDN connection release requests, can also send attachment removal request triggering UAP by UE to send attachment removal request or PDN connection release requests and trigger or UE sends PDN connection release requests triggering UAP and sends attachment removal request or PDN connection release requests.

In step S802, MME deletes conversation request message to UE PDN linkup transmits can be via SGW（It is not drawn into figure）To PDN Gateway.

When user's mark comprising UAP in the attachment removal request that UAP is sent but user's mark not comprising UE, MME can be identified according to the UAP included in the UAP and UE incidence relation that are locally created and attachment removal request user, it is determined that need delete PDN connections UE, for determination UE to MME send deletion session request.MME can also send the deletion session request for the UE in the UE user's mark and UAP user's mark in the case where UAP and UE incidence relation is locally created, not included in being asked according to attachment removal to MME.

In step S803, PDN Gateway initiates to terminate IP-CAN Conversation procedure, terminates IP-CAN sessions corresponding with the PDN connections set up between PCRF.

In step S804, PDN Gateway, which is sent, deletes session request response message via SGW to MME.

In step S805, MME deletes UE PDN connection contexts.

In step S806, MME sends attachment removal and accepts message to UAP, alternatively, and user that can be further comprising the UE associated with UAP in attachment removal received message identifies.

Alternatively, corresponding with step 801 transmission PDN connection release requests, MME can also send PDN connection release response message to UAP.

In step S807, UAP is locally deleted is connected contextual information with the UAP UE associated PDN.UAP can also discharge the WiFi interface-free resources between UE.

Alternatively, before the WiFi interface-free resources between release and UE, UAP sends PDN connection disconnections and responds to UE.

After UE PDN connections are established by UAP, if UE needs to disconnect PDN connections（For example, UE is disconnected when being connected with UAP WiFi or UAP attachment removals）, then PDN connection release requests can be sent to MME by UAP or attachment removal is asked, so as to discharge UE PDN connections, delete the resources of UE in a mobile network, realize the timely disconnection of UE PDN connections, release PDN is the system resource of its distribution, it is to avoid the waste of resource.

Fig. 9 shows the structural representation of user equipment access point apparatus provided in an embodiment of the present invention, and the device can be UAPs of the Fig. 1 into Fig. 8.For convenience of description, the part related to the embodiment of the present invention is illustrate only, including：

User's mark acquiring unit 901, the user for obtaining user equipment (UE) identifies.

Messaging unit 902 is set up in first connection, the first PDN connections for being sent to MME for setting up the connection of grouped data network PDN for the UE, which are set up, asks, the user that user's mark comprising the UE and the UAP in request are set up in the first PDN connections identifies, and receives the first PDN connection establishment responses that the MME is sent；And

Connection establishment unit 903, the PDN connection contexts for setting up the UE.

Unit 902 can be a kind of transceiver, and unit 903 can be a kind of processor.

The user equipment access point apparatus can also include：

Connection release message Transmit-Receive Unit 904, the first PDN connection release requests for sending the PDN connections for discharging the UE to the MME, user's mark comprising the UE and the UAP user identify in the first PDN connection release requests, receive the first PDN connection release responses that the MME is sent；And

Unit 905, the PDN connection contexts for deleting the UE are deleted in first connection.

Unit 904 can be a kind of transceiver, and unit 905 can be a kind of processor.

As shown in Figure 10, user equipment access point apparatus provided in an embodiment of the present invention can also include in addition to setting up messaging unit 902 and connection establishment unit 903 including the connection of foregoing user's mark acquiring unit 901, first：

Attachment removal messaging unit 906, attachment removal for sending from the PDN connections for discharging UE to the MME is asked, the user of user mark and the UAP of the attachment removal request bag containing the UE identifies, or, user's mark comprising the UAP, receives the attachment removal received message that the MME is sent；And

Unit 907, the PDN connection contexts for deleting the UE are deleted in second connection.

Unit 906 can be a kind of transceiver, and unit 907 can be a kind of processor.As shown in figure 11, user equipment access point apparatus provided in an embodiment of the present invention can also include in addition to setting up messaging unit 902 and connection establishment unit 903 including the connection of foregoing user's mark acquiring unit 901, first：

Location update message Transmit-Receive Unit 908, position updating request for sending from the position for updating the UE to the MME, the user comprising the UAP identifies in the position updating request, or user's mark and user's mark of the UAP comprising the UE, receive the location updating response that the MME is sent.Unit 908 can be a kind of transceiver.

In another embodiment of the invention, user equipment access point apparatus can also set up messaging unit 902, connection establishment unit 903, the connection of attachment removal messaging unit 906, second deletion unit 907 and location update message Transmit-Receive Unit 908 including the connection of user's mark acquiring unit 901, first simultaneously.

As shown in fig. 11a, user's mark acquiring unit 901 can include Figure 11 a neutron cells 9011 at least one subelement into subelement 9016.

First receiving subelement 9011, sets up request, the 2nd PDN connections are set up in request comprising user mark for receiving the 2nd PDN connections that the UE is sent.

Second receiving subelement 9012, request is set up for receiving the 3rd PDN connections that the UE is sent, the first mark for including the UE, or the first mark of the UE and the APN are set up in request in the 3rd PDN connections, and being designated the UE according to described first distributes user's mark.

First EAP message receives and dispatches subelement 9013, for sending EAP Request to the UE, receives the EAP responses that the UE is sent, and the EAP responses include user's mark, or user mark and the APN.

Second EAP message receives and dispatches subelement 9014, for sending EAP Request to the UE, the EAP responses that the UE is sent are received, the EAP responses include the first mark of the UE, or the first mark of the UE and the APN, it is designated the UE according to described first and distributes user's mark.

First dhcp message receives and dispatches subelement 9015, and for receiving the DHCP request that the UE is sent, the DHCP request includes user's mark.

Second dhcp message receives and dispatches subelement 9016, for receiving the DHCP request that the UE is sended over, and the DHCP request includes the first mark of the UE, and being designated the UE according to described first distributes user's mark.

Subelement 9011 to subelement 9016 can be respectively a kind of transceiver.

Interbehavior and corresponding technique effect between the behaviors of each component units of above-mentioned user equipment access point apparatus, each component units is corresponding with the description of the method for UAP execution in the embodiment of the method shown in Fig. 1 to Fig. 8, will not be repeated here.

Figure 12 shows the structural representation of mobility management entity device provided in an embodiment of the present invention, and the mobility management entity device can be MMEs of the Fig. 1 into Fig. 8.For convenience of description, the part related to the embodiment of the present invention is illustrate only, including：

Messaging unit 1201 is set up in first connection, the first PDN connections foundation request for being used to set up packet data network PDN connections for user equipment (UE) for receiving UAP transmissions, the authentication information for including the UE in request is set up in the first PDN connections, and the user that the authentication information includes the UE identifies；

Conversation message Transmit-Receive Unit 1202 is created, session request is created for being sent to PDN Gateway, the user that the establishment session request includes the UE identifies, the establishment session request response that the PDN Gateway is sent is received；And

Second connection establishment unit 1203, the PDN connection contexts for setting up the UE；

First connection sets up messaging unit 1201 and is additionally operable to send the first PDN connection establishment responses to the UAP.

Unit 1201 and unit 1202 can be respectively a kind of transceiver, and unit 1203 can be a kind of processor.

In another embodiment of the present invention, the mobility management entity device is except setting up messaging unit 1201 including the first foregoing connection, creating conversation message Transmit-Receive Unit 1202, the second connection establishment unit 1203, and the mobile management entity device can also include：

Incidence relation sets up unit 1204, the incidence relation set up for the user's mark and user's mark of the UE using the UAP between the UAP and the UE.Unit 1204 can be a kind of processor.

In another embodiment of the present invention, the mobility management entity device sets up unit 1204 except setting up messaging unit 1201 including the first foregoing connection, creating conversation message Transmit-Receive Unit 1202, the second connection establishment unit 1203 and incidence relation, and the mobility management entity device can also include：

Associated connection release 1205, the attachment removal request for receiving the mark of the user comprising the UAP that the UAP is sent, according to the incidence relation between the UAP and the UE, discharges the PDN connections of the UE.Unit 1205 can be realized by receiver and processor.

Relative position updating block 1206, the position updating request for receiving the mark of the user comprising the UAP that the UAP is sent, according to the incidence relation between the UAP and the UE, location updating is carried out to the UE.Unit 1206 can be realized by receiver and processor.

Wherein, associated connection releasing unit 1205 can include：

Attachment removal information receiving and transmitting subelement 12051 is associated, the attachment removal request for being used to discharge the PDN connections of the UE for receiving the mark of the user comprising the UAP that the UAP is sent sends attachment removal received message to the UAP；

Determination subelement 12052 is associated, for being identified according to the incidence relation and the UAP user, it is determined that needing to discharge the UE of PDN connections user's mark；

Associated deletion conversation message receives and dispatches subelement 12053, and conversation request message is deleted for being sent to the PDN Gateway, and the user that the deletion conversation request message includes the UE identifies, and receives the deletion session request response message that the PDN Gateway is sent；

Associated connection deletes subelement 12054, the PDN connection contexts for deleting the UE.

Subelement 12051 and subelement 12053 can be a kind of transceiver, and subelement 12052 and subelement 12054 can be a kind of processor.

Relative position updating block 1206 can include：

Relative position new information receives and dispatches subelement 12061, the position updating request for being used to update the position of the UE for receiving the mark of the user comprising the UAP that the UAP is sent, and location updating response message is sent to the UAP；

Relative position updates subelement 12062, for being identified according to the incidence relation and the UAP user, it is determined that needing the UE of location updating, the UAP included using the position updating request location updating message updates the positional information of the UE.

Subelement 12061 can be a kind of transceiver, and subelement 12062 can be a kind of processor.

As shown in figure 13, in another embodiment of the present invention, the mobility management entity device is except setting up messaging unit 1201 including the first foregoing connection, creating conversation message Transmit-Receive Unit 1202, the second connection establishment unit 1203, and the mobile management entity device can also include：

Connection release message Transmit-Receive Unit 1207, the user for receiving user's mark comprising the UE and the UAP in the first PDN connection release requests for being used to discharge the PDN connections of the UE that the UAP is sent, the first PDN connection release requests identifies；

Connection Release unit 1208, the PDN connections for discharging the UE；

Connection release message Transmit-Receive Unit 1207, is additionally operable to send the PDN connection release responses to the UAP.

Unit 1207 can be a kind of transceiver, and unit 1208 can be a kind of processor.

As shown in figure 14, in another embodiment of the present invention, the mobility management entity device is except setting up messaging unit 1201 including the first foregoing connection, creating conversation message Transmit-Receive Unit 1202, the second connection establishment unit 1203, and the mobility management entity device can also include：

Attachment removal messaging unit 1210, for receiving the attachment removal request for being used to discharge the PDN connections of the UE that the UAP is sent, the attachment removal request includes user's mark of the UAP and the user of the UE identifies；

Connection Release unit 1211, the PDN connections for discharging the UE；And

Attachment removal messaging unit 1210, is additionally operable to send attachment removal received message to the UAP.

Unit 1210 can be a kind of transceiver, and unit 1211 can be a kind of processor.Wherein, above-mentioned Connection Release unit 1208 and Connection Release unit 1211 can include respectively：

Conversation message transmitting-receiving subelement 12081 is deleted, conversation request message is deleted for being sent to PDN Gateway, the user that the deletion conversation request message includes the UE identifies, the deletion session request response message that the PDN Gateway is sent is received；And

Subelement 12082, the PDN connection contexts for deleting the UE are deleted in connection.

Subelement 12081 can be a kind of transceiver, and subelement 12082 can be a kind of processor.As shown in figure 15, in another embodiment of the present invention, the mobility management entity device is except setting up messaging unit 1201 including the first foregoing connection, creating conversation message Transmit-Receive Unit 1202, the second connection establishment unit 1203, and the mobility management entity device can also include：

Location update message Transmit-Receive Unit 1213, for receiving the position updating request for being used to update the position of the UE that the UAP is sent, the position updating request includes the position after the renewal of the UAP, user's mark of the UAP, and the UE user's mark；

Location updating unit 1214, for using the position after the renewal of the UAP, location updating to be carried out to the UE；And

Location update message Transmit-Receive Unit 1213, is additionally operable to send location updating response message to the UAP.

Unit 1213 can be a kind of transceiver, and unit 1214 can be a kind of processor.In the embodiment of the present invention, after request is set up in the MME PDN connections including UE authentication informations for receiving UAP transmissions, send PDN connections foundation to PDN Gateway and ask, be that UE sets up PDN connections.After the PDN connection establishment responses for receiving PDN Gateway transmission, set up UE PDN connection contexts, PDN connection establishment responses are sent to UAP, therefore mobile network can be that UE distributes independent resource by UAP, including IP address, qos policy and charging regulation etc., simultaneously, when present invention also offers a variety of UE PDN Connection Releases and the embodiment of location updating, the PDN Connection Releases and position updating process for the UE being connected to by UAP on PDN are realized.

The description of the method for the MME execution of interbehavior and corresponding technique effect with Fig. 1 into Fig. 8 embodiments of the method between the behaviors of each component units of above-mentioned mobility management entity device, each component units is corresponding, will not be repeated here.

One of ordinary skill in the art will appreciate that realizing all or part of step of above method embodiment can be completed by hardware, the hardware of correlation can also be instructed to complete by program, the all or part of unit or subelement of said apparatus embodiment can be completed by hardware, the hardware of correlation can also be instructed to complete by program, described program can be stored in a kind of computer-readable recording medium, storage medium mentioned above can be read-only storage, disk or CD etc..

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the invention etc., should be included in the scope of the protection.

Claims

A kind of method of network insertion, it is characterised in that including：

User equipment access point UAP obtains user's mark of user equipment (UE)；

Request is set up to mobility management entity MME the first PDN connections sent for setting up the connection of grouped data network PDN for the UE, the user that user's mark comprising the UE and the UAP in request are set up in the first PDN connections identifies；

The first PDN connection establishment responses that the MME is sent are received, the PDN connection contexts of the UE are set up.
According to the method described in claim 1, it is characterised in that further comprise：

The user comprising the UAP in the position updating request of the position for updating the UE, the position updating request is sent to the MME to identify, or the mark of the user comprising the UE and the UAP user identify；

Receive the location updating response that the MME is sent.
Method according to claim 1 or 2, it is characterised in that further comprise：

The user that user's mark comprising the UE and the UAP in the first PDN connection release requests of the PDN connections for discharging the UE, the first PDN connection release requests are sent to the MME identifies；

The first PDN connection release responses that the MME is sent are received, the PDN connection contexts of the UE are deleted.
Method according to claim 1 or 2, it is characterised in that further comprise：

The attachment removal request of the PDN connections for discharging the UE is sent to the MME, the user of user mark and the UAP of the attachment removal request bag containing the UE identifies, or, user's mark comprising the UAP；

Receive the attachment removal received message that the MME is sent；

Delete the context of the PDN connections of the UE.
According to any described method of Claims 1-4, it is characterised in that the authentication information of the acquisition UE, including：

The 2nd PDN connections foundation request that the UE is sent is received, user's mark comprising the UE in request is set up in the 2nd PDN connections；Or,

Request is set up in the 3rd PDN connections for receiving the UE transmissions, and the first mark of the UE is included in the 3rd PDN connections foundation request, and being designated the UE according to described first distributes user's mark.
According to any described method of Claims 1-4, it is characterised in that obtain the authentication information of the UE, including：

Extensible authentication protocol EAP Request is sent to the UE, the EAP responses that the UE is sent are received, the user comprising the UE identifies in the EAP responses；Or,

EAP Request is sent to the UE, the EAP responses of the UE transmissions are received, the EAP responses include the first mark of the UE, being designated the UE according to described first distributes user's mark.
According to any described method of Claims 1-4, it is characterised in that obtain the authentication information of the UE, including：

Receive in the dynamic host configuration protocol DHCP request that the UE is sent, the DHCP request and include user mark；Or,

The first mark comprising the UE in the dynamic host configuration protocol DHCP request that the UE is sent, the DHCP request is received, being designated the UE distribution user according to described first identifies.
A kind of user equipment access point apparatus, it is characterised in that described device includes：

User's mark acquiring unit, the user for obtaining user equipment (UE) identifies；

Messaging unit is set up in first connection, the first PDN connections for being sent to mobility management entity MME for setting up the connection of grouped data network PDN for the UE, which are set up, asks, the user that user's mark comprising the UE and the UAP in request are set up in the first PDN connections identifies, and receives the first PDN connection establishment responses that the MME is sent；And

Connection establishment unit, the PDN connection contexts for setting up the UE.
Device according to claim 8, it is characterised in that described device further comprises：

Connection release message Transmit-Receive Unit, the first PDN connection release requests for sending the PDN connections for discharging the UE to the MME, user's mark comprising the UE and the UAP user identify in the first PDN connection release requests, receive the first PDN connection release responses that the MME is sent；And

Unit, the PDN connection contexts for deleting the UE are deleted in first connection.
Device according to claim 8 or claim 9, it is characterised in that described device further comprises：

Attachment removal messaging unit, attachment removal for sending from the PDN connections for discharging the UE to the MME is asked, the user of user mark and the UAP of the attachment removal request bag containing the UE identifies, or, user's mark comprising the UAP, receives the attachment removal received message that the MME is sent；

Unit, the PDN connection contexts for deleting the UE are deleted in second connection.
Device as described in claim 8-10 is any, it is characterised in that described device further comprises：

Location update message Transmit-Receive Unit, position updating request for sending from the position for updating the UE to the MME, the user comprising the UAP identifies in the position updating request, or user's mark and user's mark of the UAP comprising the UE, receive the location updating response that the MME is sent.
Device as described in claim 8 to 11 is any, it is characterised in that user's mark acquiring unit includes：

First receiving subelement, sets up request, the 2nd PDN connections are set up in request comprising user mark for receiving the 2nd PDN connections that the UE is sent；Or,

Second receiving subelement, request is set up for receiving the 3rd PDN connections that the UE is sent, the first mark comprising the UE in the 3rd PDN connections foundation request, and being designated the UE according to described first distributes user's mark.
Equipment as described in claim 8 to 11 is any, it is characterised in that user's mark acquiring unit includes：

First EAP message receives and dispatches subelement, for sending EAP Request to the UE, receives the EAP responses that the UE is sent, and the EAP responses include user's mark；Or,

Second EAP message receives and dispatches subelement, for sending EAP Request to the UE, receives the EAP responses of the UE transmissions, and the EAP responses include the first mark of the UE, and being designated the UE according to described first distributes user's mark.
Device as described in claim 8 to 11 is any, it is characterised in that user's mark acquiring unit includes：

First dhcp message receives and dispatches subelement, and for receiving the DHCP request that the UE is sent, the DHCP request includes user's mark；Or,

Second dhcp message receives and dispatches subelement, for receiving the DHCP request that the UE is sent, and the DHCP request includes the first mark of the UE, and being designated the UE according to described first distributes user's mark.
A kind of method of network insertion, it is characterised in that including：

The first PDN connections foundation for setting up the connection of grouped data network PDN for user equipment (UE) of reception user equipment access point UAP transmissions is asked, and the user comprising the UE identifies user's mark with the UAP in the first PDN connections foundation request；

Sent to packet data network PDN Gateway and create session request, user of the establishment session request comprising the UE identifies；

Receive the establishment session request response that the PDN Gateway is sent；

The PDN connection contexts of the PDN connections of the UE are set up, the first PDN connection establishment responses are sent to the UAP.
Method according to claim 15, it is characterised in that further comprise：

The incidence relation set up using user's mark of the UAP and user's mark of the UE between the UAP and the UE.
Method according to claim 16, it is characterised in that further comprise：

The attachment removal request for being used to discharge the PDN connections of the UE for the mark of the user comprising the UAP that the UAP is sent is received, according to the incidence relation, the PDN connections of the UE is discharged, attachment removal received message is sent to the UAP；Or,

The position updating request for being used to update the position of the UE for the mark of the user comprising the UAP that the UAP is sent is received, according to the incidence relation, location updating is carried out to the UE, location updating response message is sent to the UAP.
Method as claimed in claim 17, it is characterised in that described according to the incidence relation, discharges the PDN connections of the UE, including：

Identified according to the incidence relation and the UAP user, it is determined that needing to discharge the UE of PDN connections user's mark, sent to the PDN Gateway and delete conversation request message, the user that the deletion conversation request message includes the UE identifies；

Receive the deletion session request response message that the PDN Gateway is sent；

Delete the PDN connection contexts of the UE.
Method as claimed in claim 17, it is characterised in that according to the incidence relation, location updating is carried out to the UE, including：

Identified according to the incidence relation and the UAP user, it is determined that needing the UE of location updating, the UAP included using the position updating request location updating message updates the positional information of the UE.
Method as claimed in claim 15, it is characterised in that further comprise：

The position updating request for being used to update the position of the UE that the UAP is sent is received, the position updating request includes user's mark of the position after the renewal of the UAP, user's mark of the UAP and the UE；

Using the position after the renewal of the UAP, location updating is carried out to the UE；

Location updating response message is sent to the UAP.
Method according to claim 15 or 20, it is characterised in that further comprise：

The user for receiving user's mark comprising the UE and the UAP in the first PDN connection release requests for being used to discharge the PDN connections of the UE that the UAP is sent, the first PDN connection release requests identifies；

Discharge the PDN connections of the UE；

PDN connection release responses are sent to the UAP.
Method as described in claim 15 or 20, it is characterised in that methods described further comprises：

The attachment removal request for being used to discharge the PDN connections of the UE that the UAP is sent is received, the user of user mark and the UE of the attachment removal request bag containing the UAP identifies；

Discharge the PDN connections of the UE；

Attachment removal received message is sent to the UAP.
Method as described in claim 21 or 22, it is characterised in that the PDN connections of the release UE, including：

Sent to the PDN Gateway and delete conversation request message, user of the deletion conversation request message comprising the UE identifies；

Receive the deletion session request response message that the PDN Gateway is sent；

Delete the PDN connection contexts of the UE.
A kind of mobility management entity device, it is characterised in that including：

Messaging unit is set up in first connection, request is set up in the first PDN connections for setting up the connection of grouped data network PDN for user equipment (UE) for receiving user equipment access point UAP transmissions, user's mark comprising the UE and user's mark of the UAP in the first PDN connections foundation request；

Conversation message Transmit-Receive Unit is created, session request is created for being sent to PDN Gateway, user of the establishment session request comprising the UE identifies, the establishment session request response that the PDN Gateway is sent is received；And

Second connection establishment unit, the PDN connection contexts for setting up the UE；

Messaging unit is set up in first connection, is additionally operable to send the first PDN connection establishment responses to the UAP.
Device as claimed in claim 24, it is characterised in that further comprise：

Incidence relation sets up unit, the incidence relation set up for the user's mark and user's mark of the UE using the UAP between the UAP and the UE.
Device as claimed in claim 25, it is characterised in that further comprise：

Associated connection releasing unit, the attachment removal request for being used to discharge the PDN connections of the UE for receiving the mark of the user comprising the UAP that the UAP is sent, according to the incidence relation, discharges the PDN connections of the UE；Or

Relative position updating block, the position updating request for being used to update the position of the UE for receiving the mark of the user comprising the UAP that the UAP is sent, according to the incidence relation, location updating is carried out to the UE.
Device as claimed in claim 26, it is characterised in that the associated connection releasing unit includes：

Attachment removal information receiving and transmitting subelement is associated, the attachment removal request for being used to discharge the PDN connections of the UE for receiving the mark of the user comprising the UAP that the UAP is sent sends attachment removal received message to the UAP；

Determination subelement is associated, for being identified according to the incidence relation and the UAP user, it is determined that needing to discharge the UE of PDN connections user's mark；

Associated deletion conversation message receives and dispatches subelement, and conversation request message is deleted for being sent to PDN Gateway, and the user that the deletion conversation request message includes the UE identifies, and receives the deletion session request response message that the PDN Gateway is sent；And

Associated connection deletes subelement, the PDN connection contexts for deleting the UE.
Device as claimed in claim 26, it is characterised in that the relative position updating block includes：

Relative position new information receives and dispatches subelement, the position updating request for being used to update the position of the UE for receiving the mark of the user comprising the UAP that the UAP is sent, and location updating response message is sent to the UAP；

Relative position updates subelement, for being identified according to the incidence relation and the UAP user, it is determined that needing the UE of location updating, the UAP included using the position updating request location updating message updates the positional information of the UE.
Device according to claim 24, it is characterised in that further comprise：

Connection release message Transmit-Receive Unit, the user for receiving user's mark comprising the UE and the UAP in the first PDN connection release requests for being used to discharge the PDN connections of the UE that the UAP is sent, the first PDN connection release requests identifies；

Connection Release unit, the PDN connections for discharging the UE；

The connection release message Transmit-Receive Unit, is additionally operable to send PDN connection release responses to the UAP.
Device according to claim 24, it is characterised in that further comprise：

Attachment removal messaging unit, for receiving the attachment removal request for being used to discharge the PDN connections of the UE that the UAP is sent, the attachment removal request includes user's mark of the UAP and the user of the UE identifies；

Connection Release unit, the PDN connections for discharging the UE；

The attachment removal messaging unit, is additionally operable to send attachment removal received message to the UAP.
Device as described in claim 29 or 30, it is characterised in that the Connection Release unit includes：

Conversation message transmitting-receiving subelement is deleted, conversation request message is deleted for being sent to PDN Gateway, the user that the deletion conversation request message includes the UE identifies, the deletion session request response message that the PDN Gateway is sent is received；And

Subelement, the PDN connection contexts for deleting the UE are deleted in connection.
Device as claimed in claim 24, it is characterised in that further comprise：

Location update message Transmit-Receive Unit, for receiving the position updating request for being used to update the position of the UE that the UAP is sent, the position updating request includes user's mark of the position after the renewal of the UAP, user's mark of the UAP and the UE；

Location updating unit, for using the position after the renewal of the UAP, location updating to be carried out to the UE；

The location update message Transmit-Receive Unit, is additionally operable to send location updating response message to the UAP.