WO2017011975A1 - 一种无线通信网络的接入方法及相关装置 - Google Patents

一种无线通信网络的接入方法及相关装置 Download PDF

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Publication number
WO2017011975A1
WO2017011975A1 PCT/CN2015/084470 CN2015084470W WO2017011975A1 WO 2017011975 A1 WO2017011975 A1 WO 2017011975A1 CN 2015084470 W CN2015084470 W CN 2015084470W WO 2017011975 A1 WO2017011975 A1 WO 2017011975A1
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mme
access network
3gpp access
original
identifier
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PCT/CN2015/084470
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English (en)
French (fr)
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李欢
于游洋
靳维生
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华为技术有限公司
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Priority to PCT/CN2015/084470 priority Critical patent/WO2017011975A1/zh
Priority to CN201580027213.6A priority patent/CN107925861B/zh
Publication of WO2017011975A1 publication Critical patent/WO2017011975A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/04—Registration at HLR or HSS [Home Subscriber Server]

Definitions

  • the present invention relates to the field of communications, and in particular, to an access method and related apparatus for a wireless communication network.
  • the third-party partner (English name: 3rd Generation Partnership Project, English abbreviation: 3GPP) established the long-term evolution of mobile communication network (English term: Long Term Evolution, English abbreviation: LTE) plan at the end of 2004, and guides the evolution plan.
  • a new mobile communication network architecture is defined.
  • the architecture is flatter than the second generation (English full name: Second Generation, 2G) network and the third generation (English full name: Third Generation, English abbreviation: 3G) network, and only retains the packet exchange (English full name: Packet Switching, the English abbreviation: PS) domain, can also be called the evolved packet system (English full name: Evolved Packet System, English abbreviation: EPS).
  • the core network of the new mobile communication network namely the evolved packet core network (English full name: Evolved Packet Core Network, English abbreviation: EPC) not only supports 3GPP access technology, but also supports non-3GPP (Non 3GPP) access technology, such as code.
  • EPC evolved packet core network
  • Multiple Access 2000 English full name: Code Division Multiple Access 2000, English abbreviation: CDMA2000
  • Global Interoperability for Microwave Access English
  • Wireless Local Area Network English name: Wireless Local Area Networks, English abbreviation: WLAN.
  • the core network of the 3GPP wireless evolution network mainly includes the mobility management network element (English full name: Mobility Management Entity, English abbreviation: MME), service gateway (English full name: Serving Gateway, English abbreviation: SGW), packet data network gateway (English) Full name: Public-Data Network Gateway, English abbreviation: P-GW) Three logical functions, in which the MME is responsible for the non-access stratum (English name: Non-access stratum, English abbreviation: NAS) between the user equipment and the user equipment.
  • MME Mobility Management Entity
  • SGW Serving Gateway
  • P-GW Packet Control Network Gateway
  • SGW is a local base station (English name: Evolved Node B, English)
  • PGW is responsible for user address allocation, policy control, execution of charging rules, and lawful interception related functions.
  • the trusted non-3GPP access network accesses through the S2a interface with the P-GW, and the non-trusted non-3GPP access network passes the evolved packet data.
  • the ePDG is responsible for forwarding or allocating the mobile IP address of the UE, registering the local IP address of the UE, and binding the mobile IP address of the UE with the local IP address.
  • the authentication, authorization, and accounting server (English name: Authentication, Authorization, Accounting server, English abbreviation: AAA server) is used to sign the user server with the home (English full name: Home Subscriber Server, English)
  • the abbreviation: HSS implements the authentication and authorization operation for the UE, and registers the P-GW identification information used for the connection of each public data network (Public Data Network, English abbreviation: PDN) established by the UE to the HSS.
  • PDN public Data Network
  • the 3GPP AAA server Deploying a 3GPP AAA server, and combining the 3GPP AAA Server function with the MME network element in the existing EPC, but after the 3GPP AAA Server function is fused to the MME, when the UE accesses from the non-3GPP access network and the 3GPP access network respectively In the 3GPP core network, since the access device of the non-3GPP access network and the access network device of the 3GPP access network each have a mechanism of separately selecting the MME, when the UE accesses the 3GPP core network from the non-3GPP access network, The 3GPP access network device selects one MME for management, and when the UE accesses the 3GPP core network from the 3GPP access network, the 3GPP access network device also selects one MME for management, and the non-3GPP access network access device and The MMEs selected by the access network devices of the 3GPP access network are likely to be different. Therefore, the UE can not implement unified control of 3GPP access and non-3GPP access
  • the embodiments of the present invention provide an access method and related device of a wireless communication network, which can implement unified control of 3GPP access and non-3GPP access by the UE, and improve user experience.
  • a first aspect of the embodiments of the present invention provides a method for accessing a wireless communication network, including:
  • the gateway of the non-third generation partner program 3GPP access network receives the access request message sent by the user equipment UE, the UE has accessed the 3GPP access network, and the original mobility management network element MME provides the UE with the service;
  • the gateway of the non-3GPP access network selects a new MME to serve the UE;
  • the gateway of the non-3GPP access network sends an authentication and authorization request message to the new MME;
  • the gateway of the non-3GPP access network receives the response message sent by the new MME, where the response message includes an identifier of the original MME;
  • the gateway of the non-3GPP access network selects the original MME as the UE according to the identifier of the original MME;
  • the gateway of the non-3GPP access network establishes a session with the original MME.
  • the access request message includes dual access indication information, where the authentication and authorization request message includes the dual connection Indication information;
  • the dual access indication information is used to indicate that the UE accesses the 3GPP access network and the non-3GPP access network at the same time.
  • a second aspect of the embodiments of the present invention provides a method for accessing a wireless communication network, where the method is used for a user equipment UE to access a non-3rd generation partnership plan 3GPP access network, and the UE has access to a 3GPP access network.
  • the original mobility management network element MME provides the UE with the service through the 3GPP access network, and the original MME has been registered to the home subscriber server HSS, including:
  • the HSS sends the identifier of the original MME to the non-3GPP through the new MME.
  • Gateways that access the network include:
  • the HSS sends the identifier of the original MME to the gateway of the non-3GPP access network by using the new MME.
  • the authentication and authorization request message includes the dual access indication information, where the dual access indication information And configured to indicate that the UE accesses the 3GPP access network and the non-3GPP access network at the same time;
  • the gateway that sends the identifier of the original MME to the non-3GPP access network by using the new MME includes:
  • the HSS obtains the identifier of the original MME according to the dual access indication information, and sends the identifier of the original MME to the gateway of the non-3GPP access network by using the new MME;
  • the HSS obtains the identifier of the original MME according to the dual access indication information, and sends a reselection indication and an identifier of the original MME to the gateway of the non-3GPP access network by using the new MME.
  • a third aspect of the embodiments of the present invention provides a method for accessing a wireless communication network, where the method is used for a user equipment UE to access a non-3rd generation partnership plan 3GPP access network, and the UE has access to a 3GPP access network.
  • the original mobility management network element MME serves the UE through the 3GPP access network, and the original MME has been registered to the home subscriber server HSS, including:
  • the new MME sends a response message to the gateway of the non-3GPP access network, where the response message includes an identifier of the original MME, to indicate that the gateway of the non-3GPP access network selects the location according to the identifier of the original MME. Describe the original MME.
  • a fourth aspect of the embodiments of the present invention provides a method for accessing a wireless communication network, where the method is used for a user equipment UE to access a third generation partner plan 3GPP access network, and the UE has access to a non-3GPP access network.
  • the original mobility management network element MME provides the UE with the service through the non-3GPP access network, and the original MME is registered to the home subscriber server HSS, and the method includes:
  • the HSS sends the identifier of the original MME to the new MME, so that the new MME sends according to the identifier of the original MME. Reselecting the indication to the original MME to instruct the original MME to send a termination session request to the gateway of the non-3GPP access network.
  • the re-selection indication is attached to a context request message sent by the new MME to the original MME, where the weight is
  • the selection indication is a reselection indication signaling, where the reselection indication signaling carries an identifier of the new MME, or the reselection indication is an identifier of the new MME;
  • the terminating session request carries an identifier of the new MME, so that the gateway of the non-3GPP access network terminates the session with the original MME and selects the new MME according to the identifier of the new MME.
  • the method further includes :
  • the HSS sends a deregistration message to the original MME, and cancels the registration information of the original MME.
  • a fifth aspect of the embodiments of the present invention provides a method for accessing a wireless communication network, where the method is used for a user equipment UE to access a third generation partnership plan 3GPP access network, and the UE has access to a non-3GPP access network.
  • the original mobility management network element MME provides the UE with the service through the non-3GPP access network, and the original MME has been registered to the home subscriber server HSS, including:
  • the original MME receives a context request message sent by the new MME, where the context request message carries a reselection indication and an identifier of the new MME, where the new MME is when the UE accesses the 3GPP access network.
  • the MME selected by the base station for the UE;
  • the gateway And sending, by the original MME, a termination session request to the gateway of the non-3GPP access network according to the reselection indication, where the termination session request carries an identifier of the new MME, so that the non-3GPP access network
  • the gateway terminates the session with the original MME and establishes a session with the new MME according to the terminating session request.
  • the method further includes:
  • the original MME sends the context content of the UE to the new MME.
  • a sixth aspect of the embodiments of the present invention provides a method for accessing a wireless communication network, where the method is used for a user equipment UE to access a third generation partner plan 3GPP access network, and the UE has access to a non-3GPP access network.
  • the original mobility management network element MME provides the UE with the service through the non-3GPP access network, and the original MME has been registered to the home subscriber server HSS, including:
  • the gateway of the non-3GPP access network receives the termination session request sent by the original MME, where the termination session request carries the identifier of the new MME, and the new MME is when the UE accesses the 3GPP access network.
  • the gateway of the non-3GPP access network disconnects the session with the original MME according to the termination session request;
  • the gateway of the non-3GPP access network selects the new MME according to the identifier of the new MME;
  • the gateway of the non-3GPP access network establishes a session with the new MME.
  • a seventh aspect of the embodiments of the present invention provides a method for accessing a wireless communication network, including:
  • the user equipment UE acquires the identifier of the original mobility management network element MME that provides the UE with the service through the first access network, and the original MME has the authentication and authorization function of the non-3th generation partner plan 3GPP access network;
  • the UE sends an access request message to the second access network, where the access request message includes an identifier of the original MME, and the identifier of the original MME is used by the device of the second access network to select a target MME.
  • the first access network is a 3GPP access network
  • the second access network is a non-3GPP access network.
  • the device of the second access network is a gateway of a non-3GPP access network; or
  • the first access device is a non-3GPP access network
  • the second access network is a 3GPP access network
  • the device of the second access network is a base station eNodeB.
  • the UE acquires the UE by using the first access network.
  • the identifier of the original MME of the service includes:
  • the UE receives the identifier of the original MME sent by the original MME.
  • the identifier that the UE receives the MME sent by the original MME includes: the UE Receiving, by the original MME, the identifier information of the UE, where the identifier information of the UE includes an identifier of the original MME.
  • the eighth aspect of the embodiments of the present invention provides a gateway of a non-3th generation partnership plan 3GPP access network, including:
  • a receiving unit configured to receive an access request message sent by the user equipment UE, where the UE has accessed the 3GPP access network, and the original mobility management network element MME provides a service for the UE;
  • a processing unit configured to: after receiving the access request message, the receiving unit selects a new MME to serve the UE;
  • a sending unit configured to send an authentication and authorization request message to the new MME
  • the receiving unit is further configured to receive a response message sent by the new MME, where the response message includes an identifier of the original MME;
  • the processing unit is further configured to select the original MME to serve the UE according to the identifier of the original MME;
  • the processing unit is further configured to establish a session with the original MME.
  • the access request message includes dual access indication information, where the authentication and authorization request message includes the double Access indication information;
  • the dual access indication information is used to indicate that the UE accesses the 3GPP access network and the non-3GPP access network at the same time.
  • a ninth aspect of the embodiment of the present invention provides a home subscriber server HSS, where the HSS is used for a user equipment UE to access a non-3rd generation partnership plan 3GPP access network, and the UE has access to a 3GPP access network, and the original mobility
  • the management network element MME provides the UE with the service through the 3GPP access network, and the original MME has been registered to the HSS, including:
  • a receiving unit configured to receive, by using a new MME, an authentication and authorization request message sent by a gateway of the non-3GPP access network, where the new MME sends the UE to the non-3GPP access network. Selected after the access request message;
  • a sending unit configured to send the identifier of the original MME to the gateway of the non-3GPP access network by using the new MME, so that the gateway of the non-3GPP access network selects the identifier according to the identifier of the original MME
  • the original MME establishes a session with the original MME.
  • the sending unit is specifically configured to:
  • the sending unit sends the identifier of the original MME to the gateway of the non-3GPP access network by using the new MME.
  • the authentication and authorization request message includes the dual access indication information;
  • the dual access indication information is used to indicate that the UE accesses the 3GPP access network and the non-3GPP access network at the same time;
  • the sending unit is further specifically configured to:
  • the re-selection indication and the identifier of the original MME are sent by the new MME to the gateway of the non-3GPP access network.
  • a tenth aspect of the embodiments of the present invention provides a mobility management network element MME, where the MME is a new MME, and the new MME is used by the user equipment UE to access a non-3rd generation partnership plan 3GPP access network, where the UE has already Accessing the 3GPP access network, the original MME serving the UE through the 3GPP access network, and the original MME has been registered to the home subscriber server HSS, including:
  • a receiving unit configured to receive an authentication and authorization request message sent by the gateway of the non-3GPP access network
  • a sending unit configured to send the authentication and authorization request message to the HSS
  • the receiving unit is further configured to receive an identifier of the original MME sent by the HSS;
  • the sending unit is further configured to send a response message to the gateway of the non-3GPP access network, where the response message includes an identifier of the original MME, to indicate that the gateway of the non-3GPP access network is configured according to the original MME.
  • the identifier is selected for the original MME.
  • An eleventh embodiment of the present invention provides a home subscriber server HSS, where the HSS is used.
  • the user equipment UE accesses the third generation partnership plan 3GPP access network, the UE has access to the non-3GPP access network, and the original mobility management network element MME provides the UE with the service through the non-3GPP access network, and The original MME has been registered to the HSS, including:
  • a receiving unit configured to receive an authentication and authorization request message sent by the new MME, where the authentication request message is sent by the new MME according to an access request message sent by the UE through the 3GPP access network;
  • a sending unit configured to: when the new MME is different from the original MME that is registered by the HSS, send the identifier of the original MME to the new MME, so that the new MME is configured according to the original MME.
  • the identifier sends a reselection indication to the original MME to instruct the original MME to send a termination session request to the gateway of the non-3GPP access network.
  • the reselection indication is attached to a context request message sent by the new MME to the original MME.
  • the reselection indication is a reselection indication signaling, where the reselection indication signaling carries an identifier of the new MME, or the reselection indication is an identifier of the new MME;
  • the terminating session request carries an identifier of the new MME, so that the gateway of the non-3GPP access network terminates the session with the original MME and selects the new MME according to the identifier of the new MME.
  • the HSS further includes a storage unit, configured to store Said new MME;
  • the sending unit is further configured to:
  • the storage unit After the storage unit stores the new MME, the unregistered message is sent to the original MME, and the registration information of the original MME is cancelled.
  • a twelfth aspect of the embodiments of the present invention provides a mobility management network element MME, where the MME is an original MME, and the original MME is used by the user equipment UE to access a third generation partnership plan 3GPP access network, where the UE has Accessing the non-3GPP access network, the original MME provides the UE with the service through the non-3GPP access network, and the original MME is registered to the home subscriber server HSS, and the original MME includes:
  • a receiving unit configured to receive a context request message sent by the new MME, where the context request message carries a reselection indication and an identifier of the new MME, where the new MME is in the UE access station The MME selected by the base station for the UE when the 3GPP access network is described;
  • a sending unit configured to send a termination session request to the gateway of the non-3GPP access network according to the reselection indication, where the termination session request carries an identifier of the new MME, so that the non-3GPP access network
  • the gateway terminates the session with the original MME and establishes a session with the new MME according to the terminating session request.
  • the sending unit is further configured to:
  • the receiving unit After receiving the context request message sent by the new MME, the receiving unit sends the context content of the UE to the new MME.
  • a thirteenth aspect of the embodiments of the present invention provides a gateway of a non-3th generation partnership plan 3GPP access network, where the gateway is used for a user equipment UE to access a 3GPP access network, and the UE has access to a non-3GPP access network.
  • the original mobility management network element MME provides the UE with the service through the non-3GPP access network, and the original MME has been registered to the home subscriber server HSS, including:
  • a receiving unit configured to receive a termination session request sent by the original MME, where the termination session request carries an identifier of a new MME, where the new MME is used by the base station when the UE accesses the 3GPP access network Said MME selected by the UE;
  • a processing unit configured to disconnect the session with the original MME according to the terminating session request
  • the processing unit is further configured to select the new MME according to the identifier of the new MME;
  • the processing unit is further configured to establish a session with the new MME.
  • a fourteenth aspect of the embodiments of the present invention provides a user equipment UE, including:
  • a processing unit configured to acquire an identifier of an original mobility management network element MME that provides a service to the UE by using a first access network, where the original MME has an authentication and authorization function of a non-3th generation partner plan 3GPP access network;
  • a sending unit configured to send an access request message to the second access network, where the access request message includes an identifier of the original MME, where the identifier of the original MME is used for a device selection target of the second access network MME.
  • the first access network is a 3GPP access network
  • the second access network is a non-3GPP connection.
  • the device of the second access network is a gateway of a non-3GPP access network;
  • the first access device is a non-3GPP access network
  • the second access network is a 3GPP access network
  • the device of the second access network is a base station eNodeB.
  • the UE further includes:
  • a receiving unit configured to receive an identifier of the original MME sent by the original MME.
  • the receiving unit is specifically configured to:
  • the gateway of the non-3GPP access network determines the new MME served by the UE, and the gateway of the non-3GPP access network receives the new MME.
  • a response message the response message includes an identifier of the original MME, and the gateway of the non-3GPP access network selects the original MME to serve the UE according to the identifier of the original MME, so that the non-3GPP connection is ensured.
  • the MME accessed by the network is the same as the MME accessed by the 3GPP access network, and the MME selected by the UE in the dual-access network under the converged network architecture is the same, which improves the user experience.
  • FIG. 1 is a schematic diagram of an access method of a wireless communication network according to an embodiment of the present invention
  • FIG. 2 is another schematic diagram of an access method of a wireless communication network according to an embodiment of the present invention.
  • FIG. 3 is another schematic diagram of an access method of a wireless communication network according to an embodiment of the present invention.
  • FIG. 4 is another schematic diagram of an access method of a wireless communication network according to an embodiment of the present invention.
  • FIG. 5 is another schematic diagram of a method for accessing a wireless communication network according to an embodiment of the present invention.
  • FIG. 6 is another schematic diagram of an access method of a wireless communication network according to an embodiment of the present invention.
  • FIG. 7 is another schematic diagram of an access method of a wireless communication network according to an embodiment of the present invention.
  • FIG. 8 is another schematic diagram of an access method of a wireless communication network according to an embodiment of the present invention.
  • FIG. 9 is another schematic diagram of an access method of a wireless communication network according to an embodiment of the present invention.
  • FIG. 10 is another schematic diagram of an access method of a wireless communication network according to an embodiment of the present invention.
  • FIG. 11 is another schematic diagram of an access method of a wireless communication network according to an embodiment of the present invention.
  • FIG. 12 is a schematic diagram of a gateway of a non-3th generation partnership plan 3GPP access network according to an embodiment of the present invention.
  • FIG. 13 is a schematic diagram of a home subscriber server HSS according to an embodiment of the present invention.
  • FIG. 14 is a schematic diagram of a mobility management network element MME according to an embodiment of the present invention.
  • FIG. 15 is another schematic diagram of a home subscriber server HSS according to an embodiment of the present invention.
  • FIG. 16 is another schematic diagram of a mobility management network element MME according to an embodiment of the present invention.
  • 17 is another schematic diagram of a gateway of a non-3th generation partnership plan 3GPP access network according to an embodiment of the present invention.
  • FIG. 18 is a schematic diagram of a user equipment UE in an embodiment of the present invention.
  • 19 is another schematic diagram of a gateway of a non-3th generation partnership plan 3GPP access network according to an embodiment of the present invention.
  • FIG. 20 is another schematic diagram of a home subscriber server HSS according to an embodiment of the present invention.
  • FIG. 21 is another schematic diagram of a mobility management network element MME according to an embodiment of the present invention.
  • FIG. 22 is another schematic diagram of a user equipment UE in an embodiment of the present invention.
  • the invention discloses a method for accessing a wireless communication network.
  • the method for accessing a wireless communication network provided by the present invention is described in detail below with reference to FIG. 1 .
  • the gateway of the 3GPP access network of the non-3rd generation partner program receives the access request message sent by the user equipment UE, the UE has accessed the 3GPP access network, and the original mobility management network element MME serves the UE. ;
  • the UE accessing the 3GPP access network or the non-3GPP access network must have an access sequence.
  • the 3GPP access network selects an original MME to serve the UE, and since the core network does not exist, the existing MME is already registered. Different MMEs, so when selecting the MME, the 3GPP access network does not need to consider selecting the MME that has already been registered, and only needs to determine the selected MME.
  • the original MME selected supports the authentication and authorization function of the non-3rd Generation Partnership Project 3GPP access network.
  • the home subscriber server HSS stores the original MME determined by the gateway of the 3GPP access network.
  • an access request message is sent to the gateway of the non-3GPP access network.
  • the gateway of the non-3GPP access network selects a new MME to serve the UE.
  • the non-3GPP access network and the 3GPP access network are mutually independent access networks
  • the non-3GPP access network and the 3GPP access network each have a mechanism for separately selecting an MME, so when After receiving the access request message sent by the UE, the gateway of the non-3GPP access network selects the new MME to serve the UE, and the new MME combines the authentication and authorization function of the 3GPP access network.
  • the gateway of the non-3GPP access network sends an authentication and authorization request message to the new MME.
  • the gateway of the non-3GPP access network After the new MME is selected by the gateway of the non-3GPP access network, data communication with the new MME is required, and before the data communication between the two is implemented, the gateway of the non-3GPP access network needs to be sent. An authentication and authorization request message is sent to the new MME, and after the new MME replies to the gateway response message of the non-3GPP access network, the gateway of the non-3GPP access network can implement data with the new MME. Communication.
  • the gateway of the non-3GPP access network receives a response message sent by the new MME, where the response message includes an identifier of the original MME, and the identifier of the original MME is received by the home subscriber server HSS.
  • the authentication and authorization request message sent by the new MME and determining that the original MME has been registered in the HSS, and then sent to the new MME;
  • the new MME After receiving the authentication and authorization request message sent by the gateway of the non-3GPP access network, the new MME forwards the authentication and authorization request message to the home subscriber server HSS, and the HSS receives the After the authentication and authorization request message is forwarded by the new MME, it is determined whether the original MME that has been registered is stored in the HSS, and if yes, the determined by the gateway of the non-3GPP access network And the new MME is different from the original MME determined by the 3GPP access network, and sends the identifier of the original MME that has been registered to the new MME, indicating that the gateway of the non-3GPP access network is reselected. The MME selects the original MME according to the identifier of the original MME.
  • the gateway of the non-3GPP access network selects the original MME as the UE according to the identifier of the original MME.
  • the gateway of the non-3GPP access network After the gateway of the non-3GPP access network receives the response message including the identifier of the original MME, the original MME is selected to serve the UE according to the identifier of the original MME, to ensure that the UE is connected.
  • the non-3GPP access network is the same as the MME used by the UE to access the 3GPP access network, and unified control is implemented.
  • the gateway of the non-3GPP access network establishes a session with the original MME.
  • the gateway of the non-3GPP access network selects the original MME to serve the UE, a session needs to be established with the original MME, so that the service of the non-3GPP access network also passes the original MME. Connected to the UE.
  • the gateway of the non-3GPP access network selects a new MME served by the UE, and the gateway of the non-3GPP access network receives the response message sent by the new MME, where the response message includes the original
  • the MME identifies that the gateway of the non-3GPP access network selects the original MME to serve the UE according to the identifier of the original MME, so that the MME and the 3GPP access accessed by the non-3GPP access network are ensured.
  • the MMEs connected to the network are the same, which realizes that the MMEs selected by the UE in the dual-access network under the converged network architecture are the same, and the user experience is improved.
  • the HSS determines that the original MME has been registered in the HSS, and triggers a reselection procedure to indicate a gateway of the non-3GPP access network.
  • the MME is reselected.
  • the authentication and authorization request message may further include dual access indication information, so that the HSS receives the dual connection.
  • the reselection process is triggered.
  • FIG. 2 another embodiment of the method for accessing a wireless communication network in the embodiment of the present invention includes:
  • the gateway of the non-3GPP access network receives the access request message sent by the user equipment UE, the UE has accessed the 3GPP access network, and the original MME serves the UE; the access request message further includes Access indication information;
  • the access request message may be the Internet Key Exchange Second Version IKEv2 signaling or the Wireless LAN Control Protocol WLCP signaling.
  • the UE determines, before sending the access request message, whether the UE is already Accessing the 3GPP access network, if yes, indicating that the UE is currently performing dual network access, and the UE may send a dual access indication information to the non-3GPP access network, optionally
  • the dual access indication information may be attached to the gateway of the non-3GPP access network in the access request message.
  • the gateway of the non-3GPP access network selects a new MME to serve the UE.
  • the gateway of the non-3GPP access network sends an authentication and authorization request message to the new MME.
  • the authentication and authorization request message includes the dual access indication information, where the dual access indication information is used. Instructing the UE to simultaneously access a 3GPP access network and a non-3GPP access network;
  • the HSS After the HSS receives the dual access indication information, it is not necessary to determine whether the original MME that has been registered is stored in the HSS, but directly triggers a reselection process, and passes the identifier of the original MME.
  • the new MME sends the gateway to the non-3GPP access network, or the HSS sends a reselection indication and the identifier of the original MME to the gateway of the non-3GPP access network by using the new MME. In this way, the HSS does not need to determine whether the original MME that has been registered is stored in the HSS, but directly triggers a reselection procedure, which reduces the waiting time of the UE.
  • the gateway of the non-3GPP access network receives the identifier of the original MME, and then selects the original MME according to the identifier of the original MME, the HSS does not need to be separately sent. And the re-selection indication is sent to the new MME, and the HSS separately sends a reselection indication to the new MME, where the gateway of the non-3GPP access network is used according to the original MME. The identity of the original MME is selected.
  • the gateway of the non-3GPP access network receives a response message sent by the new MME, where the response message includes an identifier of the original MME, and the identifier of the original MME is received by the home subscriber server HSS.
  • a reselection indication where the reselection indication is used to indicate that the gateway of the non-3GPP access network reselects the MME;
  • the gateway of the non-3GPP access network is configured according to the reselection indication and the original MME. Identifying that the original MME is serving the UE;
  • the gateway of the non-3GPP access network establishes a session with the original MME.
  • the UE when the UE accesses the non-3GPP access network, it determines whether the 3GPP access network has been accessed, and if so, sends the dual access indication information to the gateway of the non-3GPP access network.
  • the gateway of the non-GPP access network sends the dual access indication information to the HSS through the new MME, so that the HSS directly triggers the reselection process after receiving the dual access indication information, so that only the UE is needed.
  • the reselection process can be triggered, and the The waiting time of the UE improves the efficiency of network communication.
  • another embodiment of a method for accessing a wireless communication access network in an embodiment of the present invention includes:
  • the home subscriber server HSS receives the authentication and authorization request message sent by the gateway of the non-3GPP access network by using the new MME, where the new MME receives the access sent by the UE by the non-3GPP access network. Selected after requesting the message;
  • the user equipment UE has access to the 3GPP access network, and the original mobility management network element MME serves the UE through the 3GPP access network, and the original MME has been registered to the home subscriber server HSS, when the UE accesses
  • the UE sends an access request message to the gateway of the non-3GPP access network, and the gateway of the non-3GPP access network selects one to support non-3GPP access.
  • the new MME of the authentication and authorization function of the network provides a service for the UE, and sends an authentication and authorization request message to the new MME.
  • the new MME passes the Declaring and encapsulating the authentication and authorization request message, and sending the authentication and authorization request message to the HSS.
  • the HSS sends the identifier of the original MME to the gateway of the non-3GPP access network by using the new MME, so that the gateway of the non-3GPP access network selects the identifier according to the identifier of the original MME.
  • the original MME and establishes a session with the original MME;
  • the original MME Since the UE has accessed the 3GPP access network, the original MME provides services for the UE through the 3GPP access network, and the original MME has been registered in the HSS, so when After the HSS receives the authentication and authorization request message sent by the new MME, the original MME is configured to make the gateway of the non-3GPP access network select the same as the MME determined by the 3GPP access network.
  • the identifier is sent by the new MME, and the identifier of the original MME is sent by the new MME to the gateway of the non-3GPP access network, so that the gateway of the non-3GPP access network selects according to the identifier of the original MME.
  • the original MME establishes a session with the original MME, so that the non-3GPP access network and the 3GPP access network select the same MME to provide services for the UE.
  • the HSS receives the authentication and authorization request message sent by the gateway of the non-3GPP access network by using the new MME, and the HSS sends the identifier of the original MME to the non-3GPP access network by using the new MME.
  • the MME that is accessed by the non-3GPP access network is the same as the MME that is accessed by the 3GPP access network, and the MME selected by the UE in the dual-access network under the converged network architecture is the same. , to improve the user experience.
  • the HSS is configured to send the identifier of the original MME to the gateway of the non-3GPP access network through the new MME.
  • the HSS may determine that the new MME is different from the original MME, and then And the identifier of the original MME is sent to the gateway of the non-3GPP access network by the new MME; or the HHS further receives the dual access indication information included in the authentication and authorization request information, The HSS sends the identifier of the original MME to the gateway of the non-3GPP access network by using the new MME according to the dual access indication information, which is specifically described below.
  • the wireless device in the embodiment of the present invention Another embodiment of a method for accessing a communication access network includes:
  • the home subscriber server HSS receives the authentication and authorization request message sent by the gateway of the non-3GPP access network by using the new MME, where the new MME receives the access sent by the UE by the non-3GPP access network. Selected after requesting the message;
  • the HSS sends the identifier of the original MME to the gateway of the non-3GPP access network by using the new MME, so that the non-3GPP access is performed.
  • the gateway of the network selects the original MME according to the identifier of the original MME, and establishes a session with the original MME;
  • the original MME may be searched for, and it is determined whether the new MME is the same as the original MME. If not, the HSS is different. Sending, by the new MME, the identifier of the original MME to the non-3GPP access A gateway of the network to cause the gateway of the non-3GPP access network to perform reselection.
  • the authentication and authorization request message includes dual access indication information, where the dual access indication information is used to indicate that the UE accesses the 3GPP access network and the non-3GPP access network at the same time;
  • Step 402 The HSS obtains the identifier of the original MME according to the dual access indication information, and sends the identifier of the original MME to the gateway of the non-3GPP access network by using the new MME; or ,
  • the HSS obtains the identifier of the original MME according to the dual access indication information, and sends a reselection indication and an identifier of the original MME to the gateway of the non-3GPP access network by using the new MME.
  • the UE When the UE accesses the non-3GPP access network, it may determine whether the current access is dual-access, and if so, may send a dual access indication information, where the dual access indication information may be included in the UE.
  • the gateway of the non-3GPP access network In the access request message sent to the gateway of the non-3GPP access network, the gateway of the non-3GPP access network carries the dual access indication information in the authentication and authorization request message, and passes the The new MME is sent to the HSS, so that when the HSS receives the dual access indication information, the original MME is directly searched, and the identifier of the original MME is sent through the new MME.
  • a gateway to the non-3GPP access network In the access request message sent to the gateway of the non-3GPP access network, the gateway of the non-3GPP access network carries the dual access indication information in the authentication and authorization request message, and passes the The new MME is sent to the HSS, so that when the HSS receives the dual access indication information, the original MME
  • the new MME is selected according to the identifier of the original MME; if not, The HSS may also send a reselection indication and an identifier of the original MME to the gateway of the non-3GPP access network by using the new MME, so that the gateway of the non-3GPP access network is selected according to the reselection. Instructing to select the original MME.
  • another embodiment of a method for accessing a wireless communication access network in an embodiment of the present invention includes:
  • the new MME receives an authentication and authorization request message sent by a gateway of the non-3GPP access network.
  • the user equipment UE has access to the non-3rd generation partner plan 3GPP access network, the original mobility management network element MME serves the UE through the 3GPP access network, and the original MME has been registered to the home subscriber server HSS.
  • the UE accesses the 3GPP access network
  • the UE sends an access request message to the gateway of the non-3GPP access network, and the gateway of the non-3GPP access network selects to support the non-3GPP access network.
  • the new MME of the authentication and authorization function provides a service to the UE, and The new MME sends an authentication and authorization request message.
  • the new MME sends the authentication and authorization request message to the HSS.
  • the new MME receives an identifier of the original MME that is sent by the HSS.
  • the HSS Since the UE is already connected to the 3GPP access network, and the original MME that provides the UE by the 3GPP access network is already stored in the HSS, when the HSS receives the new MME, After the authentication and authorization request message, the identifier of the original MME is sent to the new MME.
  • the new MME sends a response message to the gateway of the non-3GPP access network, where the response message includes an identifier of the original MME, to indicate that the gateway of the non-3GPP access network is configured according to the identifier of the original MME. Selecting the original MME;
  • the new MME After receiving the identifier of the original MME sent by the HSS, the new MME sends a response message of the authentication and authorization request to the gateway of the non-3GPP access network, and the response message includes Determining an identity of the original MME, to indicate that the gateway of the non-3GPP access network selects the original MME according to the identifier of the original MME.
  • the new MME receives the authentication and authorization request message sent by the gateway of the non-3GPP access network, the new MME sends the authentication and authorization request message to the HSS, and the new MME receives the HSS.
  • the MME is the same as the MME accessed by the 3GPP access network, and implements the same MME selected by the UE in the dual-access network under the converged network architecture, thereby improving the user experience.
  • another embodiment of an access method of a wireless communication access network in an embodiment of the present invention includes:
  • the embodiment of the present invention is used for the user equipment UE to access the third generation partner plan 3GPP access network, the UE has accessed the non-3GPP access network, and the original mobility management network element MME is used by the non-3GPP access network.
  • the UE provides a service, and the original MME has been registered to the home subscriber server HSS.
  • the HSS receives an authentication and authorization request message sent by the new MME, where the authentication request message is sent by the new MME according to an access request message sent by the UE through the 3GPP access network. ;
  • the foregoing embodiments describe the implementation manners of the gateway reselection MME of the non-3GPP access network when the UE first accesses the 3GPP access network and then accesses the non-3GPP access network, and in actual applications, the foregoing The UE may also access the non-3GPP access network first, and then access the 3GPP access network.
  • the non-3GPP access network determines that an original MME serves the UE, and when the UE accesses the 3GPP access network, the The 3GPP access network also determines that a new MME serves the UE, and the gateway of the 3GPP access network sends an authentication request message to the new MME, and the new MME sends the authentication request message.
  • the HSS is used to store the new MME.
  • the HSS sends the identifier of the original MME to the new MME, so that the new MME is configured according to the identifier of the original MME.
  • the HSS may further determine whether the new MME is the same as the original MME stored in the HSS, and if not, indicating that the gateway of the non-3GPP access network needs to be indicated. Reselect MME.
  • the HSS first stores the new MME, and then sends the identifier of the original MME to the new MME.
  • the new MME is first accessed by the UE.
  • the gateway of the network reselects the MME, the gateway of the non-3GPP access network needs to terminate the session with the original MME, and the new MME may also acquire the original MME to perform a session with the non-3GPP access network.
  • the context information of the UE is stored, so the new MME may send a context request message to the original MME, the context request message carries the identifier of the new MME, and the original MME sends a termination session.
  • the termination session request Requesting the gateway of the non-3GPP access network, the termination session request further carrying the identifier of the new MME, so that the gateway of the non-3GPP access network can select the new MME according to the identifier of the new MME .
  • the reselection indication may be a reselection indication signaling, which is used to explicitly indicate that the original MME sends a session termination request to the gateway of the non-3GPP access network, indicating the non-3GPP access network.
  • the gateway performs reselection; the reselection indication may also be the identifier of the new MME, through the association After the original MME receives the identifier of the new MME, the original MME sends the identifier of the new MME to the gateway of the non-3GPP access network, and terminates the session with the gateway of the non-3GPP access network. And indicating that the gateway of the non-3GPP access network performs reselection of the MME.
  • Optional step 603 The HSS sends a deregistration message to the original MME, where the registration information of the original MME is cancelled.
  • the original MME is registered, because the HSS has sent the identifier of the original MME to the new MME, and causes the original MME to indicate that the gateway of the non-3GPP access network performs reselection of the MME.
  • the information stored in the HSS has no value. Therefore, the HSS can send a deregistration message to the original MME to cancel the registration information of the original MME, save the storage space of the HSS, and avoid the storage space.
  • the HSS receives the authentication and authorization request message sent by the new MME, where the authentication request message is sent by the new MME according to the access request message sent by the UE through the 3GPP access network, if The new MME is different from the original MME that is registered by the HSS, and the HSS sends the identifier of the original MME to the new MME, so that the new MME sends a reselection indication according to the identifier of the original MME.
  • the original MME instructing the original MME to send a termination session request to the gateway of the non-3GPP access network, so that the gateway of the non-3GPP access network terminates the session with the original MME and according to the new
  • the identity of the MME selects the new MME and establishes a session.
  • the gateway of the non-3GPP access network determines an original MME, and establishes a session connection.
  • the 3GPP connects.
  • the network access also determines a new MME, and when the HSS determines that the new MME is different from the original MME, it triggers a reselection procedure, so that the gateway of the non-3GPP access network disconnects the original MME. a session between the MMEs, and selecting the new MME according to the identifier of the new MME, to ensure that the MME selected by the gateway of the non-3GPP access network is the same as the MME selected by the 3GPP access network, and the MME is improved. user experience.
  • another embodiment of an access method of a wireless communication network in an embodiment of the present invention includes:
  • the embodiment of the present invention is used for the user equipment UE to access the third generation partnership plan 3GPP access network,
  • the UE has accessed the non-3GPP access network, and the original mobility management network element MME provides services for the UE through the non-3GPP access network, and the original MME has been registered to the home subscriber server HSS.
  • the original MME receives a context request message sent by a new MME, where the context request message carries a reselection indication and an identifier of the new MME, where the new MME accesses the 3GPP access network in the UE.
  • the MME selected by the base station for the UE;
  • the HSS determines that the original MME that is already stored in the HSS is different from the new MME, sends an identifier of the original MME to the new MME, where the new MME receives the identifier of the original MME. Then, the address of the original MME is obtained according to the identifier of the original MME, and a request message is sent to the original MME, where the context request message carries a reselection indication and an identifier of the new MME. And causing the original MME to end a session with the gateway of the non-3GPP access network, and instructing the gateway of the non-3GPP access network to perform reselection of the MME.
  • the original MME sends the context content of the UE to the new MME.
  • the original MME may send the context content of the UE to the new MME to ensure that the original MME has established a connection with the gateway of the non-3GPP access network.
  • the integrity of the data can be ensured when the gateway of the non-3GPP access network accesses the new MME.
  • the original MME sends a termination session request to the non-3GPP access gateway according to the reselection indication, where the termination session request carries an identifier of the new MME, so that the non-3GPP access network
  • the gateway terminates the session with the original MME and establishes a session with the new MME;
  • the original MME After receiving the reselection indication, the original MME sends a termination session request to the gateway of the non-3GPP access network to request the gateway of the non-3GPP access network to terminate the session with the original MME. And the identifier of the new MME is further included in the termination session request, to indicate that the gateway of the non-3GPP access network selects the new MME according to the identifier of the new MME.
  • the re-selection process may be triggered when the gateway of the non-3GPP access network receives the termination session request sent by the original MME and the identifier of the new MME, so that the non-3GPP is enabled.
  • the gateway of the access network selects the new MME according to the identifier of the new MME, and may also send the re-selection indication to the original MME after sending the termination session request and the identifier of the new MME.
  • the gateway of the non-3GPP access network instructs the gateway of the non-3GPP access network to select the new MME according to the identifier of the new MME.
  • the original MME receives the context request message sent by the new MME, where the context request message carries a reselection indication and an identifier of the new MME, and the original MME sends a termination according to the reselection indication.
  • the session request is sent to the gateway of the non-3GPP access network, and the termination session request carries the identifier of the new MME, such that the gateway of the non-3GPP access network receives the termination session request, and then the gateway Terminating the session with the original MME and selecting the new MME according to the identifier of the new MME and establishing a session, so that the MME selected by the gateway of the non-3GPP access network and the gateway of the 3GPP access network are selected
  • the same MME improves the user experience.
  • another embodiment of an access method of a wireless communication network in an embodiment of the present invention includes:
  • the embodiment of the present invention is used for the user equipment UE to access the third generation partner plan 3GPP access network, the UE has accessed the non-3GPP access network, and the original mobility management network element MME is used by the non-3GPP access network.
  • the UE provides a service, and the original MME has been registered to the home subscriber server HSS.
  • the gateway of the non-3GPP access network receives a termination session request sent by the original MME, where the termination session request carries an identifier of a new MME, where the new MME accesses the 3GPP access in the UE.
  • the MME selected by the base station for the UE in the network time;
  • the gateway of the non-3GPP access network disconnects the session with the original MME according to the terminating session request.
  • the termination session request carries the identifier of the new MME, that is, the gateway indicating the non-3GPP access network according to the new MME, because the gateway of the non-3GPP access network has established a session with the original MME. To identify the reselection MME, the session with the original MME needs to be terminated.
  • the gateway of the non-3GPP access network selects the new MME according to the identifier of the new MME.
  • the MME selected by the non-3GPP access network is selected according to the identifier of the new MME.
  • the new MME is selected according to the identifier of the new MME.
  • the gateway of the non-3GPP access network establishes a session with the new MME.
  • the gateway of the non-3GPP access network receives the termination session request sent by the original MME, where the termination session request carries the identifier of the new MME, and the new MME is in the office.
  • the gateway of the access network selects the new MME according to the identifier of the new MME, and the gateway of the non-3GPP access network establishes a session with the new MME, so that the gateway selected by the non-3GPP access network selects
  • the MME is the same as the MME selected by the gateway of the 3GPP access network, which improves the user experience.
  • another embodiment of an access method of a wireless communication network in an embodiment of the present invention includes:
  • the user equipment UE acquires an identifier of an original mobility management network element MME that provides services for the UE by using a first access network, where the original MME has an authentication and authorization function of a non-3th generation partner plan 3GPP access network.
  • the foregoing embodiment describes that the UE accesses a first access network first, the first access network determines a new MME, and the UE accesses the second access network, and the second access network determines.
  • the original MME when the HSS determines that the new MME determined by the first access network is different from the original MME determined by the second access network, instructs the first access network or the second access network to perform reselection of the MME.
  • the MME determined by the first access network is the same as the MME determined by the second access network, and unified control of the UE is implemented.
  • the MME that is determined by the device of the first access network indicates the device selection of the second access network.
  • the MME does not need to select an MME by the second access network, and avoids the subsequent reselection process.
  • the identifier of the original MME determined by the device of the first access network is obtained, when the UE accesses the second access network. And instructing the second access network to select a target MME according to the identifier of the original MME.
  • the UE sends an access request message to the second access network, where the access request message includes an identifier of the original MME, and the identifier of the original MME is used by the device of the second access network according to the Select the target MME;
  • the access request message needs to be sent to the second access network, and in the access request message, the original MME needs to be included. Identifying, to indicate that the device of the second access network selects the target MME according to the identifier of the original MME, and prevents the device of the second access network from selecting the MME by itself, in order to enable the device of the second access network choose
  • the MME is the same as the MME selected by the device in the first access network, and the target MME selected by the second access network according to the identifier of the original MME is the original MME.
  • the user equipment UE acquires the identifier of the original mobility management network element MME that provides the service to the UE through the first access network, and the original MME has the certification of the non-3rd generation partnership plan 3GPP access network. And an authorization function, the UE sends an access request message to the second access network, where the access request message includes an identifier of the original MME, and the identifier of the original MME is used for device selection of the second access network Target MME.
  • the target MME is selected according to the identifier of the original MME, and the device of the second access network is prevented from selecting the MME by itself, causing the second access network to be
  • the MME selected by the device is different from the MME selected by the device in the first access network, and unified control of the first access network and the second access network by the UE is implemented.
  • the UE accesses the first access network, the UE acquires the identifier of the original MME, and the UE sends an access request message to the second access network, where the access request message includes the The identity of the original MME.
  • the first access network may be a 3GPP access network
  • the second access network may be a non-3GPP access network, which is specifically described below.
  • the wireless communication network in the embodiment of the present invention Another embodiment of the access method includes:
  • the user equipment UE performs a tracking area update TAU procedure or a 3GPP internal handover procedure, so that the UE selects a most suitable original MME, where the most suitable original MME is the MME that is closest to the UE and has idle load. ;
  • the TAU process or the 3GPP internal handover process is performed first.
  • a TAU procedure may be performed, so that the 3GPP access network to which the UE can connect is the best access network; when the UE and the 3GPP access network process the connected state.
  • the most suitable original MME is switched, and the most suitable original MME is the MME that is closest to the UE and has idle load.
  • the UE receives the identifier of the original MME sent by the original MME, where the original MME has an authentication and authorization function of a non-3GPP access network, and the original MME is determined by the base station eNodeB to serve the UE.
  • the original MME may allocate an identifier to the UE, where the identifier information may be a GUTI value, where the GUTI value includes the identifier of the original MME,
  • the UE is caused to store the GUTI value.
  • the UE sends an access request message to a non-3GPP access network, where the access request message includes an identifier of the original MME, where the identifier of the original MME is used by the UE to access the non-3GPP access
  • the gateway that accesses the network selects the target MME according to the identifier of the original MME;
  • the first access network is a 3GPP access network
  • the second access network is a non-3GPP access network; before the UE accesses the 3GPP access network, the UE performs a TAU process or a 3GPP internal handover process.
  • the original MME currently selected by the UE is the most suitable MME, which improves the network communication efficiency of the UE.
  • the first access network is a 3GPP access network
  • the second access network is a non-3GPP access network
  • the first access network may also be a non-3GPP access network
  • the second connection The access network may be a 3GPP access network, and is specifically described below.
  • another embodiment of the method for accessing a wireless communication network in the embodiment of the present invention includes:
  • the UE sends an access request message to a gateway of the non-3GPP access network.
  • the access request message may be an Internet Key Exchange Second Version IKEv2 signaling or a Wireless LAN Control Protocol WLCP signaling. Used to ensure the security of the data signaling communication between the non-3GPP access network and the UE.
  • the UE receives the response information sent by the original MME, where the original MME is the MME selected by the gateway of the non-3GPP access network, and the response information is received by the home subscriber server HSS for the authentication sent by the MME. Sending the message to the MME, the response message is used to indicate that the UE successfully accesses the non-3GPP access network;
  • the authentication request message is sent to the original MME, so that the MME forwards the authentication request message to the HSS, and the HSS receives the After the authentication request message is sent, the response message is sent to the UE by the original MME, indicating that the UE successfully accesses the non-3GPP access network.
  • the UE receives an identifier of the original MME sent by the original MME, where the original MME has an authentication and authorization function of a non-3GPP access network, and the original MME is accessed by a non-3GPP.
  • the gateway of the network determines to serve the UE;
  • the UE sends an access request message to a 3GPP access network, where the access request message includes an identifier of the original MME, and the identifier of the original MME is used by a base station eNodeB of the 3GPP access network according to the The identity of the original MME selects the target MME;
  • the first access network is a non-3GPP access network
  • the second access network is a 3GPP access network
  • the UE sends the encryption protocol first when accessing the non-3GPP access network.
  • the access request message is sent to the gateway of the non-3GPP access network to ensure the security of the data signaling communication between the non-3GPP access network and the UE, and the security of the UE for wireless network communication is improved.
  • an embodiment of a gateway of a non-3th generation partnership plan 3GPP access network in the embodiment of the present invention includes:
  • the receiving unit 1201 is configured to receive an access request message sent by the user equipment UE, where the UE has accessed the 3GPP access network, and the original mobility management network element MME provides a service for the UE.
  • the processing unit 1202 is configured to: after receiving the access request message, the receiving unit 1201 selects a new MME to serve the UE;
  • the sending unit 1203 is configured to send an authentication and authorization request message to the new MME.
  • the receiving unit 1201 is further configured to receive a response message sent by the new MME, where the response message includes an identifier of the original MME.
  • the processing unit 1202 is further configured to: select, according to the identifier of the original MME, the original MME to serve the UE;
  • the processing unit 1202 is further configured to establish a session with the original MME;
  • the access request message includes dual access indication information
  • the authentication and The authorization request message includes the dual access indication information, where the dual access indication information is used to indicate that the UE accesses the 3GPP access network and the non-3GPP access network simultaneously
  • an embodiment of a home subscriber server HSS in the embodiment of the present invention includes:
  • the receiving unit 1301 is configured to receive, by using the new MME, an authentication and authorization request message sent by the gateway of the non-3GPP access network, where the new MME receives the access sent by the UE by the non-3GPP access network. Selected after requesting the message;
  • the sending unit 1302 is configured to send, by using the new MME, the identifier of the original MME to the gateway of the non-3GPP access network, so that the gateway of the non-3GPP access network selects the identifier according to the identifier of the original MME. Determining the original MME and establishing a session with the original MME;
  • the sending unit 1302 is specifically configured to:
  • the sending unit sends the identifier of the original MME to the gateway of the non-3GPP access network by using the new MME;
  • the authentication and authorization request message includes the dual access indication information, where the dual access indication information is used to indicate that the UE accesses the 3GPP access network and the non-3GPP access network at the same time;
  • the HSS further includes a processing unit 1303, and the sending unit 1302 is further specifically configured to:
  • the processing unit 1303 After the processing unit 1303 acquires the identifier of the original MME according to the dual access indication information, the identifier of the original MME is sent to the gateway of the non-3GPP access network by using the new MME; or
  • the processing unit 1303 After the processing unit 1303 acquires the identifier of the original MME according to the dual access indication information, the re-selection indication and the identifier of the original MME are sent by the new MME to the gateway of the non-3GPP access network.
  • an embodiment of the mobility management network element MME in the embodiment of the present invention includes:
  • the MME is a new MME.
  • the receiving unit 1401 is configured to receive the authentication and authorization sent by the gateway of the non-3GPP access network. Ask for news;
  • the sending unit 1402 is configured to send the authentication and authorization request message to the HSS;
  • the receiving unit is further configured to receive an identifier of the original MME sent by the HSS;
  • the sending unit 1402 is further configured to send a response message to the gateway of the non-3GPP access network, where the response message includes an identifier of the original MME, to indicate that the gateway of the non-3GPP access network is configured according to the original MME. Identification of the original MME;
  • another embodiment of the home subscriber server HSS in the embodiment of the present invention includes:
  • the embodiment of the present invention is used for the user equipment UE to access the third generation partner plan 3GPP access network, the UE has accessed the non-3GPP access network, and the original mobility management network element MME is used by the non-3GPP access network.
  • the UE provides a service, and the original MME has been registered to the home subscriber server HSS.
  • the receiving unit 1501 is configured to receive an authentication and authorization request message sent by the new MME, where the authentication request message is sent by the new MME according to an access request message sent by the UE through the 3GPP access network;
  • the sending unit 1502 is configured to: when the new MME is different from the original MME that is registered by the HSS, send the identifier of the original MME to the new MME, so that the new MME is configured according to the original MME.
  • the identifier of the MME sends a reselection indication to the original MME, to indicate that the original MME sends a termination session request to the gateway of the non-3GPP access network;
  • the reselection indication is attached to a context request message sent by the new MME to the original MME, where the reselection indication is reselection indication signaling, and the reselection indication signaling is carried. Having the identifier of the new MME, or the reselection indication is an identifier of the new MME; the termination session request carries an identifier of the new MME, so that the gateway of the non-3GPP access network terminates Determining the session of the original MME and selecting the new MME according to the identity of the new MME.
  • the HSS further includes a storage unit 1503, configured to store the new MME;
  • the sending unit 1502 is further configured to:
  • the storage unit 1503 After the storage unit 1503 stores the new MME, sending a deregistration message to the original MME, and canceling registration information of the original MME;
  • another embodiment of the mobility management network element MME in the embodiment of the present invention includes:
  • the MME is an original MME.
  • the embodiment of the present invention is used for the user equipment UE to access the third generation partner plan 3GPP access network, the UE has accessed the non-3GPP access network, and the original mobility management network element MME is used by the non-3GPP access network.
  • the UE provides a service, and the original MME has been registered to the home subscriber server HSS.
  • the receiving unit 1601 is configured to receive a context request message sent by the new MME, where the context request message carries a reselection indication and an identifier of the new MME, where the new MME accesses the 3GPP access network at the UE The MME selected by the base station for the UE;
  • the sending unit 1602 is configured to send, according to the reselection indication, a gateway that terminates the session request to the non-3GPP access network, where the termination session request carries an identifier of the new MME, so that the non-3GPP access
  • the gateway of the network terminates the session with the original MME according to the termination session request and establishes a session with the new MME;
  • the sending unit 1602 is further configured to: after the receiving unit receives the context request message sent by the new MME, send the context content of the UE to the new MME;
  • another embodiment of a gateway of a non-3th generation partnership plan 3GPP access network in the embodiment of the present invention includes:
  • the embodiment of the present invention is used for the user equipment UE to access the third generation partner plan 3GPP access network, the UE has accessed the non-3GPP access network, and the original mobility management network element MME is used by the non-3GPP access network.
  • the UE provides a service, and the original MME has been registered to the home subscriber server HSS.
  • the receiving unit 1701 is configured to receive a termination session request sent by the original MME, where the termination The session request carries the identifier of the new MME, and the new MME is the MME selected by the base station for the UE when the UE accesses the 3GPP access network;
  • the processing unit 1702 is configured to disconnect the session with the original MME according to the terminating session request;
  • the processing unit 1702 is further configured to select the new MME according to the identifier of the new MME;
  • the processing unit 1702 is further configured to establish a session with the new MME.
  • an embodiment of the user equipment UE in the embodiment of the present invention includes:
  • the processing unit 1801 is configured to acquire an identifier of an original mobility management network element MME that provides services for the UE by using a first access network, where the original MME has an authentication and authorization function of a non-3rd generation partnership plan 3GPP access network;
  • the sending unit 1802 is configured to send an access request message to the second access network, where the access request message includes an identifier of the original MME, and the identifier of the original MME is used for device selection of the second access network.
  • Target MME
  • the first access network is a 3GPP access network
  • the second access network is a non-3GPP access network
  • the device of the second access network is a non-3GPP access network.
  • the processing unit 1801 is further configured to perform a tracking area update TAU procedure or a 3GPP internal handover procedure, so that the UE selects a most suitable original MME, where the most suitable original MME is the closest to the UE and the load is idle.
  • MME tracking area update
  • 3GPP internal handover procedure so that the UE selects a most suitable original MME, where the most suitable original MME is the closest to the UE and the load is idle.
  • the UE further includes: a receiving unit 1803, configured to receive an identifier of the original MME sent by the original MME.
  • the receiving unit 1803 is specifically configured to: receive the identifier information of the UE that is sent by the original MME, where the identifier information of the UE includes an identifier of the original MME.
  • the first access device is a non-3GPP access network
  • the second access The network is a 3GPP access network
  • the device of the second access network is a base station eNodeB.
  • the receiving unit 1803 is further configured to: receive the response information sent by the original MME, where the original MME is the MME selected by the gateway of the non-3GPP access network, and the response information is sent by the home subscriber server HSS to the MME.
  • the authentication request message is sent to the MME, and the response message is used to indicate that the UE successfully accesses the non-3GPP access network;
  • FIG. 12 and FIG. 17 illustrates the specific structure of the gateway device of the non-3th generation partner plan 3GPP access network from the perspective of the functional unit, and the following is an example of the hardware from the perspective of the embodiment shown in FIG.
  • the specific structure of the gateway device of the 3GPP access network is described:
  • the gateway device includes a communication interface 1902, a processor 1903, and a memory 1904.
  • the gateway device may have more or less components than those shown in FIG. 19, may combine two or more components, or may have different component configurations or settings, and each component may include Hardware, software, or a combination of hardware and software implementations of one or more signal processing and/or application specific integrated circuits.
  • the communication interface 1902 is configured to receive an access request message sent by the UE, where the UE has access to the 3GPP access network, and the original mobility management network element MME provides a service for the UE.
  • the processor 1903 is configured to: after receiving the access request message, the communication interface 1902 selects a new MME to serve the UE;
  • the processor 1903 is further configured to send, by using the communication interface 1902, an authentication and authorization request message to the new MME;
  • the communication interface 1902 is further configured to receive a response message sent by the new MME, where the response message includes an identifier of the original MME.
  • the processor 1903 is further configured to select the original MME to serve the UE according to the identifier of the original MME;
  • the processor 1903 is further configured to establish a session with the original MME.
  • the communication interface 1902 can include one or more interfaces.
  • the receiver 1902 is further configured to receive, sent by the original MME. Terminating a session request, the termination session request carrying an identifier of a new MME, where the new MME is an MME selected by the base station for the UE when the UE accesses the 3GPP access network;
  • the processor 1903 is further configured to disconnect the session with the original MME according to the terminating session request;
  • the processor 1903 is further configured to select the new MME according to the identifier of the new MME;
  • the processor 1903 is further configured to establish a session with the new MME.
  • FIG. 13 and FIG. 15 illustrates the specific structure of the home subscriber server HSS device from the perspective of the functional unit.
  • the specific structure of the HSS device is described from the hardware point of view below with reference to the embodiment shown in FIG. 20:
  • the gateway device includes a communication interface 2002, a processor 2003, and a memory 2004.
  • the HSS device may have more or less components than those shown in FIG. 20, may combine two or more components, or may have different component configurations or settings, and each component may include Hardware, software, or a combination of hardware and software implementations of one or more signal processing and/or application specific integrated circuits.
  • the communication interface 2002 is configured to receive, by using the new MME, an authentication and authorization request message sent by the gateway of the non-3GPP access network, where the new MME receives the access sent by the UE by the non-3GPP access network. Selected after requesting the message;
  • the processor 2003 is configured to send, by using the communication interface 2002, the identifier of the original MME to the gateway of the non-3GPP access network by using the new MME, so that the gateway of the non-3GPP access network is configured according to the The identity of the original MME selects the original MME, and establishes a session with the original MME;
  • processor 2003 is specifically configured to:
  • the authentication and authorization request message includes the dual access indication information, where the dual access indication information is used to indicate that the UE accesses the 3GPP access network and the non-3GPP access network at the same time;
  • the processor 2003 is further specifically configured to:
  • the processor 2003 acquires the identifier of the original MME according to the dual access indication information
  • the identifier of the original MME is sent to the new MME through the communication interface 2002.
  • a gateway of the non-3GPP access network or,
  • the processor 2003 After the processor 2003 acquires the identifier of the original MME according to the dual access indication information, the re-selection indication and the identifier of the original MME are sent to the non-3GPP through the communication interface 2002 by using the new MME. Gateway to the access network.
  • the communication interface 2002 is further configured to receive an authentication and authorization request message sent by the new MME, where the authentication request message is used by the new MME according to the UE through the 3GPP access network.
  • the sent access request message is sent;
  • the processor 2003 is further configured to: when the new MME is different from the original MME that is registered by the HSS, send the identifier of the original MME to the new MME by using the communication interface 2002, so that Sending, by the original MME, the reselection indication to the original MME according to the identifier of the original MME, to indicate that the original MME sends a termination session request to the gateway of the non-3GPP access network;
  • the reselection indication is attached to a context request message sent by the new MME to the original MME, where the reselection indication is reselection indication signaling, and the reselection indication signaling is carried. Having the identifier of the new MME, or the reselection indication is an identifier of the new MME; the termination session request carries an identifier of the new MME, so that the gateway of the non-3GPP access network terminates Determining the session of the original MME and selecting the new MME according to the identity of the new MME.
  • the storage unit 2004 is configured to store the new MME.
  • the processor 2003 is further configured to:
  • the unregistered message is sent to the original MME through the communication interface 2002, and the registration information of the original MME is cancelled.
  • the communication interface 2002 can include one or more interfaces.
  • FIG. 14 and FIG. 16 illustrates the specific structure of the mobility management network element MME device from the perspective of the functional unit.
  • the specific structure of the MME device is described from the hardware point of view below with reference to the embodiment shown in FIG. 21 . :
  • the MME device includes a communication interface 2102, a processor 2103, and a memory 2104.
  • the MME device may have more or less components than those shown in FIG. 21, may combine two or more components, or may have different component configurations or settings, and each component may include Hardware or software including one or more signal processing and/or application specific integrated circuits Or a combination of hardware and software implementation.
  • the MME is a new MME.
  • the communication interface 2102 is configured to receive an authentication and authorization request message sent by a gateway of the non-3GPP access network.
  • the processor 2103 is configured to send, by using the communication interface 2102, the authentication and authorization request message to the HSS;
  • the communication interface 2102 is further configured to receive an identifier of the original MME sent by the HSS;
  • the processor 2103 is further configured to send, by using the communication interface 2102, a response message to the gateway of the non-3GPP access network, where the response message includes an identifier of the original MME, to indicate the non-3GPP access network.
  • the gateway selects the original MME according to the identifier of the original MME;
  • the MME is an original MME.
  • the communication interface 2102 is further configured to receive a context request message sent by the new MME, where the context request message carries a reselection indication and an identifier of the new MME, where the new MME accesses the 3GPP interface
  • the MME selected by the base station for the UE when entering the network;
  • the processor 2103 is further configured to send, according to the reselection indication, a termination session request to the gateway of the non-3GPP access network by using the communication interface 2102, where the termination session request carries the identifier of the new MME, So that the gateway of the non-3GPP access network terminates the session with the original MME according to the termination session request and establishes a session with the new MME;
  • the processor 2103 is further configured to send the context content of the UE to the new MME by using the communication interface 2102 after receiving the context request message sent by the new MME.
  • FIG. 18 illustrates the specific structure of the user equipment UE from the perspective of the functional unit.
  • the specific structure of the UE is described from the hardware point of view below with reference to the embodiment shown in FIG. 22:
  • the UE includes a transmitter 2201, a receiver 2202, a processor 2203, and a memory 2204.
  • the UE according to an embodiment of the present invention may have more or less components than those shown in FIG. 22, may combine two or more components, or may have different component configurations or settings, and each component may include one Hardware, software, or hardware, or multiple signal processing and/or application specific integrated circuits Combined with software implementation.
  • the processor 2203 is configured to obtain an identifier of an original mobility management network element MME that provides services for the UE by using a first access network, where the original MME has an authentication and authorization function of a non-3th generation partner plan 3GPP access network;
  • the transmitter 2201 is configured to send an access request message to the second access network, where the access request message includes an identifier of the original MME, and the identifier of the original MME is used for device selection of the second access network.
  • Target MME
  • the first access network is a 3GPP access network
  • the second access network is a non-3GPP access network
  • the device of the second access network is a non-3GPP access network.
  • the processor 2203 is further configured to perform a tracking area update TAU procedure or a 3GPP internal handover procedure, so that the UE selects a most suitable original MME, where the most suitable original MME is the closest to the UE and the load is idle.
  • MME tracking area update
  • 3GPP internal handover procedure so that the UE selects a most suitable original MME, where the most suitable original MME is the closest to the UE and the load is idle.
  • the receiver 2202 is configured to receive an identifier of the original MME sent by the original MME.
  • the receiver 2202 is specifically configured to: receive the identifier information of the UE that is sent by the original MME, where the identifier information of the UE includes an identifier of the original MME.
  • the first access device is a non-3GPP access network
  • the second access network is a 3GPP access network
  • the device of the second access network is a base station eNodeB.
  • the receiver 2202 is further configured to: receive response information sent by the original MME, where the original MME is an MME selected by a gateway of the non-3GPP access network, and the response information is received by the home subscriber server HSS.
  • the MME sends an authentication request message to the MME, where the response message is used to indicate that the UE successfully accesses the non-3GPP access network.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, actual There may be additional divisions at present, for example multiple units or components may be combined or integrated into another system, or some features may be omitted or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit. Specifically, it can be implemented by means of software and necessary general hardware.
  • the general-purpose hardware includes a general-purpose integrated circuit, a general-purpose CPU, a general-purpose memory, a general-purpose component, and the like, and of course, the dedicated hardware includes an application-specific integrated circuit, a dedicated CPU, and a dedicated memory. , special components, etc. to achieve.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (English: Read-Only Memory, abbreviated as ROM), a random access memory (English: Random Access Memory, abbreviated as RAM), a magnetic disk or an optical disk, and the like.
  • ROM Read-Only Memory
  • RAM Random Access Memory

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Abstract

本发明实施例提供了一种无线通信网络的接入方法，包括：非3GPP接入网的网关确定为所述UE服务的新MME，所述非3GPP接入网的网关接收所述新MME发送的响应消息，所述响应消息包含所述原MME的标识，所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME为所述UE服务，这样，则保证了非3GPP接入网所接入的MME与3GPP接入网所接入的MME相同，实现了UE在融合网络构架下在进行双接入网络时所选择的MME相同，提高了用户的体验。

Description

一种无线通信网络的接入方法及相关装置 技术领域
本发明涉及通信领域，特别是一种无线通信网络的接入方法及相关装置。
背景技术
第三方合作伙伴(英文全称：3rd Generation Partnership Project，英文缩写：3GPP)在2004年底制定了移动通信网络的长期演进(英文全称：Long Term Evolution，英文缩写：LTE)计划，在此演进计划的指导下，定义了新的移动通信网络架构。该架构比第二代(英文全称：Second Generation，英文缩写：2G)网络和第三代(英文全称：Third Generation，英文缩写：3G)网络更加扁平化，并且只保留了分组交换(英文全称：Packet Switching，英文缩写：PS)域，因此也可称之为演进的分组系统(英文全称：Evolved Packet System，英文缩写：EPS)。该新的移动通信网络的核心网即演进的分组核心网(英文全称：Evolved Packet Core Network，英文缩写：EPC)不但支持3GPP接入技术，还支持非3GPP(Non 3GPP)接入技术，如码分多址2000(英文全称：Code Division Multiple Access 2000，英文缩写：CDMA2000)、全球微波互联接入(英文全称：Worldwide Interoperability for Microwave Access，英文缩写：WiMAX)和无线局域网络(英文全称：Wireless Local Area Networks，英文缩写：WLAN)。3GPP的无线演进网络的核心网主要包含移动性管理网元(英文全称：Mobility Management Entity，英文缩写：MME)、服务网关(英文全称：Serving Gateway，英文缩写：SGW)、分组数据网网关(英文全称：Public-Data Network Gateway，英文缩写：P-GW)三个逻辑功能体，其中的MME负责与用户设备之间的非接入层(英文全称：Non-access stratum，英文缩写：NAS)信令传输和NAS信令加密、为用户设备分配临时身份标识、选择SGW和P-GW等核心网网元以及提供漫游、跟踪、安全等功能；SGW是本地基站(英文全称：Evolved Node B，英文缩写：eNB)之间切换的移动性锚点，并提供合法监听相关功能；PGW则负责用户地址分配、策略控制、计费规则的执行以及合法监听相关功能。
在现有的网络构架中，当用户设备(英文全称：User Equipment，英文缩 写：UE)通过非3GPP接入网接入3GPP核心网时，可信非3GPP接入网通过与P-GW之间的S2a接口接入，非可信非3GPP接入网通过演进的分组数据网关(英文全称：Evolved Packet Data Gateway，英文缩写：ePDG)与P-GW之间的S2b接口接入。其中ePDG负责转发或分配UE的移动IP地址，注册UE的本地IP地址，并将UE的移动IP地址和本地IP地址进行绑定。从非3GPP接入网接入的时候，验证、授权和记账服务器(英文全称：Authentication、Authorization、Accounting server，英文缩写：AAA server)通过与归属签约用户服务器(英文全称：Home Subscriber Server，英文缩写：HSS)的交互实现对UE的鉴权授权操作，将UE建立的每个公共数据网(英文全称：Public Data Network，英文缩写：PDN)连接所用的P-GW标识信息注册到HSS中。当UE在3GPP接入网和非3GPP接入网络之间移动时，就可以通过HSS中注册的PGW ID找到相同的P-GW建立PDN连接，保持IP地址不变，即可保证业务连续性。
从上述内容可知，UE从非3GPP接入网接入至3GPP核心网的过程需要3GPP AAA Server的参与，与UE从3GPP接入网接入3GPP核心网的流程是完全独立的，可以实现不用单独部署3GPP AAA server，而将3GPP AAA Server功能与现有EPC中MME网元相融合，但是即使将3GPP AAA Server功能融合至MME后，当UE从非3GPP接入网和3GPP接入网分别接入3GPP核心网时，由于非3GPP接入网的接入设备与3GPP接入网的接入网设备均具有单独选择MME的机制，所以UE在从非3GPP接入网接入3GPP核心网时，非3GPP接入网设备会选择一个MME进行管理，而UE在从3GPP接入网接入3GPP核心网时，3GPP接入网设备也会选择一个MME进行管理，非3GPP接入网的接入设备与3GPP接入网的接入网设备分别所选择的MME极有可能是不相同的，这样，便无法实现UE对3GPP接入和非3GPP接入统一控制，影响了用户体验。
发明内容
有鉴于此，本发明实施例提供一种无线通信网络的接入方法及相关装置，可实现UE对3GPP接入和非3GPP接入统一控制，提高用户体验。
本发明实施例第一方面提供一种无线通信网络的接入方法，包括：
非第三代伙伴计划3GPP接入网的网关接收用户设备UE发送的接入请求消息，所述UE已接入3GPP接入网，且原移动性管理网元MME为所述UE提供服务；
所述非3GPP接入网的网关接收到所述接入请求消息后，选择新MME为所述UE服务；
所述非3GPP接入网的网关发送鉴权与授权请求消息给所述新MME；
所述非3GPP接入网的网关接收所述新MME发送的响应消息，所述响应消息包含所述原MME的标识；
所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME为所述UE服务；
所述非3GPP接入网的网关建立与所述原MME的会话。
结合本发明实施例第一方面，本发明实施例第一方面的第一种实现方式中，所述接入请求消息包括双接入指示信息，所述鉴权与授权请求消息包含所述双接入指示信息；
其中，所述双接入指示信息用于指示所述UE同时接入3GPP接入网和非3GPP接入网。
本发明实施例第二方面提供一种无线通信网络的接入方法，所述方法用于用户设备UE接入非第三代伙伴计划3GPP接入网，所述UE已经接入3GPP接入网，原移动性管理网元MME通过所述3GPP接入网为所述UE提供服务，且所述原MME已注册到归属用户服务器HSS，包括：
所述HSS通过新MME接收到所述非3GPP接入网的网关发送的鉴权与授权请求消息，所述新MME为所述非3GPP接入网接收到所述UE发送的接入请求消息后所选择的；
所述HSS将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关，以使得所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME，并与所述原MME建立会话。
结合本发明实施例第二方面，本发明实施例第二方面的第一种实现方式中，所述HSS将所述原MME的标识通过所述新MME发送给所述非3GPP接 入网的网关包括：
若所述新MME与所述原MME不同，则所述HSS将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关。
结合本发明实施例第二方面，本发明实施例第二方面的第二种实现方式中，所述鉴权与授权请求消息包含所述双接入指示信息；其中，所述双接入指示信息用于指示所述UE同时接入3GPP接入网和非3GPP接入网；
所述HSS将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关包括：
所述HSS根据所述双接入指示信息获取所述原MME的标识，并将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关；或者，
所述HSS根据所述双接入指示信息获取所述原MME的标识，并通过所述新MME发送重选指示以及所述原MME的标识给所述非3GPP接入网的网关。
本发明实施例第三方面提供一种无线通信网络的接入方法，所述方法用于用户设备UE接入非第三代伙伴计划3GPP接入网，所述UE已经接入3GPP接入网，原移动性管理网元MME通过所述3GPP接入网为所述UE服务，且所述原MME已注册到归属用户服务器HSS，包括：
所述新MME接收所述非3GPP接入网的网关发送的鉴权与授权请求消息；
所述新MME将所述鉴权与授权请求消息发送给所述HSS；
所述新MME接收所述HSS发送的所述原MME的标识；
所述新MME发送响应消息给所述非3GPP接入网的网关，所述响应消息包含所述原MME的标识，以指示所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME。
本发明实施例第四方面提供一种无线通信网络的接入方法，所述方法用于用户设备UE接入第三代伙伴计划3GPP接入网，所述UE已接入非3GPP接入网，原移动性管理网元MME通过所述非3GPP接入网为所述UE提供服务，且所述原MME已注册到归属用户服务器HSS，所述方法包括：
所述HSS接收新MME发送的鉴权与授权请求消息，所述鉴权请求消息 是由所述新MME根据所述UE通过所述3GPP接入网发送的接入请求消息发送的；
若所述新MME与所述HSS已注册的所述原MME不同，则所述HSS将所述原MME的标识发送给所述新MME，以使得所述新MME根据所述原MME的标识发送重选指示给所述原MME，以指示所述原MME发送终止会话请求给所述非3GPP接入网的网关。
结合本发明实施例第四方面，本发明实施例第四方面的第一种实现方式中，所述重选指示依附在所述新MME发送给所述原MME的上下文请求消息内，所述重选指示为重选指示信令，所述重选指示信令携带有所述新MME的标识，或者，所述重选指示为所述新MME的标识；
所述终止会话请求携带所述新MME的标识，以使得所述非3GPP接入网的网关终止与所述原MME的会话并根据所述新MME的标识选择所述新MME。
结合本发明实施例第四方面或第四方面的第一种实现方式，本发明实施例第四方面的第二种实现方式中，当所述HSS存储所述新MME之后，所述方法还包括：
所述HSS发送取消注册消息给所述原MME，取消所述原MME的注册信息。
本发明实施例第五方面提供一种无线通信网络的接入方法，所述方法用于用户设备UE接入第三代伙伴计划3GPP接入网，所述UE已接入非3GPP接入网，原移动性管理网元MME通过所述非3GPP接入网为所述UE提供服务，且所述原MME已注册到归属用户服务器HSS，包括：
所述原MME接收新MME发送的上下文请求消息，所述上下文请求消息携带有重选指示和所述新MME的标识，所述新MME为在所述UE接入所述3GPP接入网时由基站为所述UE选择的MME；
所述原MME根据所述重选指示，发送终止会话请求给所述非3GPP接入网的网关，所述终止会话请求携带有所述新MME的标识，以使得所述非3GPP接入网的网关根据所述终止会话请求终止与所述原MME的会话并建立与所述新MME的会话。
结合本发明实施例第五方面，本发明实施例第五方面的第一种实现方式中，在所述原MME接收所述新MME发送的上下文请求消息后，所述方法还包括：
所述原MME将所述UE的上下文内容发送给所述新MME。
本发明实施例第六方面提供一种无线通信网络的接入方法，所述方法用于用户设备UE接入第三代伙伴计划3GPP接入网，所述UE已接入非3GPP接入网，原移动性管理网元MME通过所述非3GPP接入网为所述UE提供服务，且所述原MME已注册到归属用户服务器HSS，包括：
所述非3GPP接入网的网关接收所述原MME发送的终止会话请求，所述终止会话请求携带有新MME的标识，所述新MME为在所述UE接入所述3GPP接入网时由基站为所述UE选择的MME；
所述非3GPP接入网的网关根据所述终止会话请求断开与所述原MME的会话；
所述非3GPP接入网的网关根据所述新MME的标识选择所述新MME；
所述非3GPP接入网的网关与所述新MME建立会话。
本发明实施例第七方面提供一种无线通信网络的接入方法，包括：
用户设备UE获取通过第一接入网为所述UE提供服务的原移动性管理网元MME的标识，所述原MME具备非第三代伙伴计划3GPP接入网的认证授权功能；
所述UE发送接入请求消息给第二接入网，所述接入请求消息包含所述原MME的标识，所述原MME的标识用于所述第二接入网的设备选择目标MME。
结合本发明实施例第七方面，本发明实施例第七方面的第一种实现方式中，所述第一接入网为3GPP接入网，所述第二接入网为非3GPP接入网，所述第二接入网的设备为非3GPP接入网的网关；或者，
所述第一接入设备为非3GPP接入网，所述第二接入网为3GPP接入网，所述第二接入网的设备为基站eNodeB。
结合本发明实施例第七方面或第七方面的第一种实现方式，本发明实施例第七方面的第二种实现方式中，所述UE获取通过第一接入网为所述UE提供 服务的所述原MME的标识包括：
所述UE接收所述原MME发送的所述原MME的标识。
结合本发明实施例第七方面的第二种实现方式，本发明实施例第七方面的第三种实现方式中，所述UE接收所述原MME发送的所述MME的标识包括：所述UE接收所述原MME发送的所述UE的标识信息，所述UE的标识信息包含所述原MME的标识。
本发明实施例第八方面提供一种非第三代伙伴计划3GPP接入网的网关，包括：
接收单元，用于接收用户设备UE发送的接入请求消息，所述UE已接入3GPP接入网，且原移动性管理网元MME为所述UE提供服务；
处理单元，用于所述接收单元接收到所述接入请求消息后，选择新MME为所述UE服务；
发送单元，用于发送鉴权与授权请求消息给所述新MME；
所述接收单元还用于接收所述新MME发送的响应消息，所述响应消息包含所述原MME的标识；
所述处理单元还用于根据所述原MME的标识选择所述原MME为所述UE服务；
所述处理单元还用于建立与所述原MME的会话。
结合本发明实施例第八方面，本发明实施例中第八方面的第一种实现方式中，所述接入请求消息包括双接入指示信息，所述鉴权与授权请求消息包含所述双接入指示信息；
其中，所述双接入指示信息用于指示所述UE同时接入3GPP接入网和非3GPP接入网。
本发明实施例第九方面提供一种归属用户服务器HSS，所述HSS用于用户设备UE接入非第三代伙伴计划3GPP接入网，所述UE已经接入3GPP接入网，原移动性管理网元MME通过所述3GPP接入网为所述UE提供服务，且所述原MME已注册到所述HSS，包括：
接收单元，用于通过新MME接收到所述非3GPP接入网的网关发送的鉴权与授权请求消息，所述新MME为所述非3GPP接入网接收到所述UE发送 的接入请求消息后所选择的；
发送单元，用于将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关，以使得所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME，并与所述原MME建立会话。
结合本发明实施例第九方面，本发明实施例第九方面的第一种实现方式中，所述发送单元具体用于：
若所述新MME与所述原MME不同，则所述发送单元将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关。
结合本发明实施例第九方面的第一种实现方式，本发明实施例第九方面的第二种实现方式中，所述鉴权与授权请求消息包含所述双接入指示信息；其中，所述双接入指示信息用于指示所述UE同时接入3GPP接入网和非3GPP接入网；
所述发送单元具体还用于：
当根据所述双接入指示信息获取所述原MME的标识之后，将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关；或者，
当根据所述双接入指示信息获取所述原MME的标识之后，通过所述新MME发送重选指示以及所述原MME的标识给所述非3GPP接入网的网关。
本发明实施例第十方面提供一种移动性管理网元MME，所述MME为新MME，所述新MME用于用户设备UE接入非第三代伙伴计划3GPP接入网，所述UE已经接入3GPP接入网，原MME通过所述3GPP接入网为所述UE服务，且所述原MME已注册到归属用户服务器HSS，包括：
接收单元，用于接收所述非3GPP接入网的网关发送的鉴权与授权请求消息；
发送单元，用于将所述鉴权与授权请求消息发送给所述HSS；
所述接收单元还用于接收所述HSS发送的所述原MME的标识；
所述发送单元还用于发送响应消息给所述非3GPP接入网的网关，所述响应消息包含所述原MME的标识，以指示所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME。
本发明实施例第十一方面提供一种归属用户服务器HSS，所述HSS用于 用户设备UE接入第三代伙伴计划3GPP接入网，所述UE已接入非3GPP接入网，原移动性管理网元MME通过所述非3GPP接入网为所述UE提供服务，且所述原MME已注册到HSS，包括：
接收单元，用于接收新MME发送的鉴权与授权请求消息，所述鉴权请求消息是由所述新MME根据所述UE通过所述3GPP接入网发送的接入请求消息发送的；
发送单元，用于当所述新MME与所述HSS已注册的所述原MME不同时，则将所述原MME的标识发送给所述新MME，以使得所述新MME根据所述原MME的标识发送重选指示给所述原MME，以指示所述原MME发送终止会话请求给所述非3GPP接入网的网关。
结合本发明实施例第十一方面，本发明实施例第十一方面的第一种实现方式中，所述重选指示依附在所述新MME发送给所述原MME的上下文请求消息内，所述重选指示为重选指示信令，所述重选指示信令携带有所述新MME的标识，或者，所述重选指示为所述新MME的标识；
所述终止会话请求携带所述新MME的标识，以使得所述非3GPP接入网的网关终止与所述原MME的会话并根据所述新MME的标识选择所述新MME。
结合本发明实施例第十一方面或第十一方面的第一种实现方式，本发明实施例中第十一方面的第二种实现方式中，所述HSS还包括存储单元，用于存储所述新MME；
所述发送单元还用于：
当所述存储单元存储所述新MME之后，则发送取消注册消息给所述原MME，取消所述原MME的注册信息。
本发明实施例第十二方面提供一种移动性管理网元MME，所述MME为原MME，所述原MME用于用户设备UE接入第三代伙伴计划3GPP接入网，所述UE已接入非3GPP接入网，原MME通过所述非3GPP接入网为所述UE提供服务，且所述原MME已注册到归属用户服务器HSS，所述原MME包括：
接收单元，用于接收新MME发送的上下文请求消息，所述上下文请求消息携带有重选指示和所述新MME的标识，所述新MME为在所述UE接入所 述3GPP接入网时由基站为所述UE选择的MME；
发送单元，用于根据所述重选指示，发送终止会话请求给所述非3GPP接入网的网关，所述终止会话请求携带有所述新MME的标识，以使得所述非3GPP接入网的网关根据所述终止会话请求终止与所述原MME的会话并建立与所述新MME的会话。
结合本发明实施例第十二方面，本发明实施例第十二方面的第一种实现方式中，所述发送单元还用于：
在所述接收单元接收所述新MME发送的上下文请求消息后，将所述UE的上下文内容发送给所述新MME。
本发明实施例第十三方面提供一种非第三代伙伴计划3GPP接入网的网关，所述网关用于用户设备UE接入3GPP接入网，所述UE已接入非3GPP接入网，原移动性管理网元MME通过所述非3GPP接入网为所述UE提供服务，且所述原MME已注册到归属用户服务器HSS，包括：
接收单元，用于接收所述原MME发送的终止会话请求，所述终止会话请求携带有新MME的标识，所述新MME为在所述UE接入所述3GPP接入网时由基站为所述UE选择的MME；
处理单元，用于根据所述终止会话请求断开与所述原MME的会话；
所述处理单元还用于根据所述新MME的标识选择所述新MME；
所述处理单元还用于与所述新MME建立会话。
本发明实施例第十四方面提供一种用户设备UE，包括：
处理单元，用于获取通过第一接入网为所述UE提供服务的原移动性管理网元MME的标识，所述原MME具备非第三代伙伴计划3GPP接入网的认证授权功能；
发送单元，用于发送接入请求消息给第二接入网，所述接入请求消息包含所述原MME的标识，所述原MME的标识用于所述第二接入网的设备选择目标MME。
结合本发明实施例第十四方面，本发明实施例第十四方面的第一种实现方式中，所述第一接入网为3GPP接入网，所述第二接入网为非3GPP接入网，所述第二接入网的设备为非3GPP接入网的网关；或者，
所述第一接入设备为非3GPP接入网，所述第二接入网为3GPP接入网，所述第二接入网的设备为基站eNodeB。
结合本发明实施例第十四方面或第十四方面的第一种实现方式，本发明实施例第十四方面的第二种实现方式中，所述UE还包括：
接收单元，用于接收所述原MME发送的所述原MME的标识。
结合本发明实施例第十四方面的第二种实现方式，本发明实施例中第十四方面的第三种实现方式中，所述接收单元具体用于：
接收所述原MME发送的所述UE的标识信息，所述UE的标识信息包含所述原MME的标识。
本发明实施例提供的一种无线通信网络的接入方法中：非3GPP接入网的网关确定为所述UE服务的新MME，所述非3GPP接入网的网关接收所述新MME发送的响应消息，所述响应消息包含所述原MME的标识，所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME为所述UE服务，这样，则保证了非3GPP接入网所接入的MME与3GPP接入网所接入的MME相同，实现了UE在融合网络构架下在进行双接入网络时所选择的MME相同，提高了用户的体验。
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为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例中无线通信网络的接入方法的一个示意图；
图2为本发明实施例中无线通信网络的接入方法的另一个示意图；
图3为本发明实施例中无线通信网络的接入方法的另一个示意图；
图4为本发明实施例中无线通信网络的接入方法的另一个示意图；
图5为本发明实施例中无线通信网络的接入方法的另一个示意图；
图6为本发明实施例中无线通信网络的接入方法的另一个示意图；
图7为本发明实施例中无线通信网络的接入方法的另一个示意图；
图8为本发明实施例中无线通信网络的接入方法的另一个示意图；
图9为本发明实施例中无线通信网络的接入方法的另一个示意图；
图10为本发明实施例中无线通信网络的接入方法的另一个示意图；
图11为本发明实施例中无线通信网络的接入方法的另一个示意图；
图12为本发明实施例中非第三代伙伴计划3GPP接入网的网关的一个示意图；
图13为本发明实施例中归属用户服务器HSS的一个示意图；
图14为本发明实施例中移动性管理网元MME的一个示意图；
图15为本发明实施例中归属用户服务器HSS的另一个示意图；
图16为本发明实施例中移动性管理网元MME的另一个示意图；
图17为本发明实施例中非第三代伙伴计划3GPP接入网的网关的另一个示意图；
图18为本发明实施例中用户设备UE的一个示意图；
图19为本发明实施例中非第三代伙伴计划3GPP接入网的网关的另一个示意图；
图20为本发明实施例中归属用户服务器HSS的另一个示意图；
图21为本发明实施例中移动性管理网元MME的另一个示意图；
图22为本发明实施例中用户设备UE的另一个示意图。
具体实施方式
本发明公开了一种无线通信网络的接入方法，以下参照图1所示对本发明所提供的一种无线通信网络的接入方法进行详细说明。
101、非第三代伙伴计划3GPP接入网的网关接收用户设备UE发送的接入请求消息，所述UE已接入3GPP接入网，且由原移动性管理网元MME为所述UE服务；
用户设备UE需接入3GPP接入网与非3GPP接入网时，所述UE接入3GPP接入网或非3GPP接入网必定有一个接入顺序。当所述UE已经接入3GPP接入网时，所述3GPP接入网则会选择一个原MME为所述UE服务，而由于此时核心网中并没有存在已经注册了且与所述原MME不同MME，所以3GPP接入网在选择MME时，不需要考虑选择已经注册了MME，只需要确定所选 择的所述原MME支持非第三代伙伴计划3GPP接入网的认证授权功能。当所述UE接入所述3GPP接入网时，归属用户服务器HSS会存储所述3GPP接入网的网关所确定的所述原MME。
当所述UE需要接入所述非3GPP接入网时，则会向所述非3GPP接入网的网关发送接入请求消息。
102、所述非3GPP接入网的网关接收到所述接入请求后，选择新MME为所述UE服务；
由于所述非3GPP接入网与所述3GPP接入网均为互相独立的接入网，所述非3GPP接入网与所述3GPP接入网均具备单独选择MME的机制，所以当所述非3GPP接入网的网关接收到所述UE发送的接入请求消息后，则会选择所述新MME为所述UE服务，而所述新MME融合了3GPP接入网的认证授权功能。
103、所述非3GPP接入网的网关发送鉴权与授权请求消息给所述新MME；
在所述非3GPP接入网的网关选择了所述新MME后，则需要与所述新MME进行数据通信，而在实现两者间数据通信之前，所述非3GPP接入网的网关需要发送鉴权与授权请求消息给所述新MME，而在所述新MME回复给所述非3GPP接入网的网关响应消息后，所述非3GPP接入网的网关才能与所述新MME实现数据通信。
104、所述非3GPP接入网的网关接收所述新MME发送的响应消息，所述响应消息包含所述原MME的标识，所述原MME的标识由归属用户服务器HSS在接收到的所述新MME发送的所述鉴权与授权请求消息，且确定所述原MME已在所述HSS内注册之后发送给所述新MME；
当所述新MME接收到所述非3GPP接入网的网关发送的鉴权与授权请求消息后，则会转发所述鉴权与授权请求消息给归属用户服务器HSS，所述HSS接收到所述新MME转发的所述鉴权与授权请求消息后，会判断所述HSS内是否存储有已经注册了的所述原MME，若是，则表示所述非3GPP接入网的网关所确定的所述新MME与所述3GPP接入网所确定的所述原MME不相同，则会发送已经注册了的所述原MME的标识给所述新MME，指示所述非3GPP接入网的网关重选MME，并根据所述原MME的标识选择所述原MME。
105、所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME为所述UE服务；
当所述非3GPP接入网的网关接收到包含所述原MME的标识的响应消息后，则会根据所述原MME的标识选择所述原MME为所述UE服务，以保证所述UE接入所述非3GPP接入网与所述UE接入所述3GPP接入网所使用的MME相同，实现了统一控制。
106、所述非3GPP接入网的网关建立与所述原MME的会话；
当所述非3GPP接入网的网关选择所述原MME为所述UE服务后，则需要与所述原MME建立会话，这样，使得所述非3GPP接入网的业务也通过所述原MME与所述UE连接。
本发明实施例中，非3GPP接入网的网关选择为所述UE服务的新MME，所述非3GPP接入网的网关接收所述新MME发送的响应消息，所述响应消息包含所述原MME的标识，所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME为所述UE服务，这样，则保证了非3GPP接入网所接入的MME与3GPP接入网所接入的MME相同，实现了UE在融合网络构架下在进行双接入网络时所选择的MME相同，提高了用户的体验。
上述实施例描述了HSS在接收到新MME转发的鉴权与授权请求消息后，判断所述HSS内存储有已经注册了的原MME时，则触发重选流程，指示非3GPP接入网的网关重选MME，在实际应用中，当判断UE已经接入到3GPP接入网时，则所述鉴权与授权请求消息还可以包括双接入指示信息，使得所述HSS接收到所述双接入指示信息后，则会触发重选流程。下面进行具体描述，参照图2所示，本发明实施例中无线通信网络的接入方法的另一实施例包括：
201、非3GPP接入网的网关接收用户设备UE发送的接入请求消息，所述UE已接入3GPP接入网，且由原MME为所述UE服务；所述接入请求消息还包括双接入指示信息；
为了保证所述非3GPP接入网与所述UE在进行数据信令通信的安全，所述接入请求消息可以为因特网密钥交换第二版本IKEv2信令或者无线局域网控制协议WLCP信令。
可选的，所述UE在发送所述接入请求消息之前，先判断所述UE是否已 经接入到所述3GPP接入网，若是，则表示所述UE当前是在进行网络双接入，所述UE则可以发送一个双接入指示信息给所述非3GPP接入网，可选的，所述双接入指示信息可以依附在所述接入请求消息中发送给所述非3GPP接入网的网关。
202、所述非3GPP接入网的网关接收到所述接入请求后，选择新MME为所述UE服务；
详细内容参照S102所述。
203、所述非3GPP接入网的网关发送鉴权与授权请求消息给所述新MME；所述鉴权与授权请求消息包含所述双接入指示信息，所述双接入指示信息用于指示所述UE同时接入3GPP接入网和非3GPP接入网；
当所述HSS接收到所述双接入指示信息后，则无需判断所述HSS内是否存储有已经注册了的所述原MME，而直接触发重选流程，将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关，或者，所述HSS通过所述新MME发送重选指示以及所述原MME的标识给所述非3GPP接入网的网关。这样，所述HSS无需判断所述HSS内是否存储有已经注册了的所述原MME，而直接触发重选流程，减少了所述UE的等待时间。
需要说明的是，可以约定所述非3GPP接入网的网关接收到所述原MME的标识之后，则会根据所述原MME的标识选择所述原MME时，则所述HSS不需要单独发送一条重选指示给所述新MME，也可以不做此约定，则所述HSS单独发送一条重选指示给所述新MME，用于指示所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME。
204、所述非3GPP接入网的网关接收所述新MME发送的响应消息，所述响应消息包含所述原MME的标识，所述原MME的标识由归属用户服务器HSS在接收到的所述新MME发送的所述鉴权与授权请求消息，且确定所述原MME已在所述HSS内注册之后发送给所述新MME；所述响应消息还包含所述HSS发送给所述新MME的重选指示，所述重选指示用于指示所述非3GPP接入网的网关重选MME；
详细内容参照S104所述。
205、所述非3GPP接入网的网关根据所述重选指示以及所述原MME的 标识选择所述原MME为所述UE服务；
详细内容参照S105所述。
206、所述非3GPP接入网的网关建立与所述原MME的会话；
详细内容参照S106所述。
本发明实施例中，UE在接入非3GPP接入网时，则判断是否已经接入到3GPP接入网，若是，则发送双接入指示信息给所述非3GPP接入网的网关，所述非GPP接入网的网关通过新MME将所述双接入指示信息发送给HSS，使得所述HSS接收到所述双接入指示信息后直接触发重选流程，这样，只需所述UE在接入所述非3GPP接入网时判断是否已经接入到所述3GPP接入网，而无需所述HSS判断是否存储有已经注册了的原MME，则能够触发重选流程，减少了所述UE的等待时间，提高了网络通信的效率。
参照图3所示，本发明实施例中无线通信接入网络的接入方法的另一实施例包括：
301、归属用户服务器HSS通过新MME接收到所述非3GPP接入网的网关发送的鉴权与授权请求消息，所述新MME为所述非3GPP接入网接收到所述UE发送的接入请求消息后所选择的；
用户设备UE已经接入3GPP接入网，原移动性管理网元MME通过所述3GPP接入网为所述UE服务，且所述原MME已注册到归属用户服务器HSS，当所述UE接入非第三代伙伴计划3GPP接入网时，所述UE会发送接入请求消息给所述非3GPP接入网的网关，所述非3GPP接入网的网关则会选择一个支持非3GPP接入网的认证授权功能的所述新MME为所述UE提供服务，并给所述新MME发送鉴权与授权请求消息，所述新MME接收到所述鉴权与授权请求消息后，通过对所述鉴权与授权请求消息的解析与封装，将所述鉴权与授权请求消息发送给所述HSS。
302、所述HSS将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关，以使得所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME，并与所述原MME建立会话；
由于所述UE已经接入所述3GPP接入网，原MME通过所述3GPP接入网为所述UE提供服务，且所述原MME已注册到所述HSS内，所以当所述 HSS接收到所述新MME发送的鉴权与授权请求消息后，为了让所述非3GPP接入网的网关选择与所述3GPP接入网所确定的MME相同，则会将所述原MME的标识发送所述新MME，并由所述新MME将所述原MME的标识发送给所述非3GPP接入网的网关，使得所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME，并与所述原MME建立会话，实现所述非3GPP接入网以及所述3GPP接入网选择同样的MME为所述UE提供服务。
本发明实施例中，HSS通过新MME接收到非3GPP接入网的网关发送的鉴权与授权请求消息，所述HSS将原MME的标识通过所述新MME发送给所述非3GPP接入网的网关，这样，则保证了非3GPP接入网所接入的MME与3GPP接入网所接入的MME相同，实现了UE在融合网络构架下在进行双接入网络时所选择的MME相同，提高了用户的体验。
上述实施例中，描述了HSS将原MME的标识通过新MME发送给非3GPP接入网的网关，在实际应用中，所述HSS可以判断所述新MME与所述原MME不同，则将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关；或者，所述HHS还接收到所述鉴权与授权请求信息中包含的双接入指示信息，则所述HSS根据所述双接入指示信息将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关，下面进行具体描述，参照图4所示，本发明实施例中无线通信接入网络的接入方法的另一实施例包括：
401、归属用户服务器HSS通过新MME接收到所述非3GPP接入网的网关发送的鉴权与授权请求消息，所述新MME为所述非3GPP接入网接收到所述UE发送的接入请求消息后所选择的；
详细内容参照S301所述。
402、若所述新MME与所述原MME不同，则所述HSS将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关，以使得所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME，并与所述原MME建立会话；
当所述HSS接收到所述新MME发送的鉴权与授权请求消息后，则可以搜索到所述原MME，并判断所述新MME与所述原MME是否相同，若不同，则所述HSS将所述原MME的标识通过所述新MME发送给所述非3GPP接入 网的网关，以使得所述非3GPP接入网的网关进行重选。
可选的，所述鉴权与授权请求消息包含双接入指示信息；其中，所述双接入指示信息用于指示所述UE同时接入3GPP接入网和非3GPP接入网；
步骤402可以为：所述HSS根据所述双接入指示信息获取所述原MME的标识，并将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关；或者，
所述HSS根据所述双接入指示信息获取所述原MME的标识，并通过所述新MME发送重选指示以及所述原MME的标识给所述非3GPP接入网的网关。
当UE在接入所述非3GPP接入网时，可以判断当前接入是否网络双接入，若是，则可以发送一个双接入指示信息，所述双接入指示信息可以包括在所述UE发送给所述非3GPP接入网的网关的接入请求消息内，所述非3GPP接入网的网关将所述双接入指示信息携带在所述鉴权与授权请求消息内，并通过所述新MME发送给所述HSS，这样，当所述HSS接收到所述双接入指示信息后，则会直接搜索到所述原MME，并将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关。
需要说明的是，可以通过协议约定当所述非3GPP接入网的网关接收到所述原MME的标识后，则会根据所述原MME的标识选择所述新MME；若不做此约定，那么所述HSS也可以通过所述新MME发送重选指示以及所述原MME的标识给所述非3GPP接入网的网关，这样，使得所述非3GPP接入网的网关根据所述重选指示选择所述原MME。
参照图5所示，本发明实施例中无线通信接入网络的接入方法的另一实施例包括：
501、新MME接收非3GPP接入网的网关发送的鉴权与授权请求消息；
用户设备UE已经接入非第三代伙伴计划3GPP接入网，原移动性管理网元MME通过所述3GPP接入网为所述UE服务，且所述原MME已注册到归属用户服务器HSS，当所述UE接入3GPP接入网时，所述UE会发送接入请求消息给所述非3GPP接入网的网关，所述非3GPP接入网的网关则会选择支持非3GPP接入网的认证授权功能的所述新MME为所述UE提供服务，并向 所述新MME发送鉴权与授权请求消息。
502、所述新MME将所述鉴权与授权请求消息发送给所述HSS；
503、所述新MME接收所述HSS发送的所述原MME的标识；
由于所述UE已经连接所述3GPP接入网，并且所述HSS内已经存储有通过所述3GPP接入网为所述UE提供服务的原MME，所以当所述HSS接收到所述新MME发送的鉴权与授权请求消息后，则会将所述原MME的标识发送给所述新MME。
504、所述新MME发送响应消息给所述非3GPP接入网的网关，所述响应消息包含所述原MME的标识，以指示所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME；
所述新MME接收到所述HSS发送的所述原MME的标识后，则会发送所述鉴权与授权请求的响应消息给所述非3GPP接入网的网关，所述响应消息包含有所述原MME的标识，以指示所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME。
本发明实施例中，新MME接收非3GPP接入网的网关发送的鉴权与授权请求消息，所述新MME将所述鉴权与授权请求消息发送给HSS，所述新MME接收所述HSS发送的原MME的标识，所述新MME发送响应消息给所述非3GPP接入网的网关，所述响应消息包含所述原MME的标识，这样，则保证了非3GPP接入网所接入的MME与3GPP接入网所接入的MME相同，实现了UE在融合网络构架下在进行双接入网络时所选择的MME相同，提高了用户的体验。
参照图6所示，本发明实施例中无线通信接入网络的接入方法的另一实施例包括：
本发明实施例用于用户设备UE接入第三代伙伴计划3GPP接入网，所述UE已接入非3GPP接入网，原移动性管理网元MME通过所述非3GPP接入网为所述UE提供服务，且所述原MME已注册到归属用户服务器HSS。
601、所述HSS接收所述新MME发送的鉴权与授权请求消息，所述鉴权请求消息是由所述新MME根据所述UE通过所述3GPP接入网发送的接入请求消息发送的；
上述实施例所描述的均是UE先接入了3GPP接入网，再接入非3GPP接入网时，进行非3GPP接入网的网关重选MME的实现方式，而实际应用中，所述UE也可以先接入所述非3GPP接入网，再接入所述3GPP接入网。在所述UE接入所述非3GPP接入网时，所述非3GPP接入网会确定一个原MME为所述UE服务，而当所述UE接入所述3GPP接入网时，所述3GPP接入网也会确定一个新MME为所述UE服务，并且所述3GPP接入网的网关会发送鉴权请求消息给所述新MME，所述新MME则会发送所述鉴权请求消息给HSS，用于所述HSS存储所述新MME。
602、若所述新MME与所述HSS注册的所述原MME不同，则所述HSS将所述原MME的标识发送给所述新MME，以使得所述新MME根据所述原MME的标识发送重选指示给所述原MME，以指示所述原MME发送终止会话请求给所述非3GPP接入网的网关；
当所述HSS接收到所述鉴权请求消息后，还可以判断所述新MME与所述HSS内存储的原MME是否相同，若否，则表示需要指示所述非3GPP接入网的网关进行重选MME。
具体的，所述HSS先存储所述新MME，再将所述原MME的标识发给所述新MME，所述新MME接收到所述原MME的标识后，由于所述UE首先接入的是所述原MME对应的所述非3GPP接入网，所以所述非3GPP接入网的网关已经与所述原MME已经建立连接并进行了互相会话，那么当需要指示所述非3GPP接入网的网关重选MME时，则需要所述非3GPP接入网的网关与所述原MME先终止会话，所述新MME也可以获取所述原MME通过与所述非3GPP接入网进行会话时所存储的所述UE的上下文内容，所以所述新MME可以发送上下文请求消息给所述原MME，所述上下文请求消息携带有所述新MME的标识，所述原MME则会发送终止会话请求给所述非3GPP接入网的网关，所述终止会话请求还携带有所述新MME的标识，使得所述非3GPP接入网的网关能够根据所述新MME的标识选择所述新MME。
需要说明的是，所述重选指示可以是一条重选指示信令，用于明确指示所述原MME发送会话终止请求给所述非3GPP接入网的网关，指示所述非3GPP接入网的网关进行重选；所述重选指示也可以是所述新MME的标识，通过协 议约定所述原MME接收到所述新MME的标识后，则将所述新MME的标识发送给所述非3GPP接入网的网关，并终止与所述非3GPP接入网的网关的会话，指示所述非3GPP接入网的网关进行重选MME。
可选步骤603、所述HSS发送取消注册消息给所述原MME，用于取消所述原MME的注册信息；
可选的，由于所述HSS已经发送所述原MME的标识给所述新MME，并且使得所述原MME指示所述非3GPP接入网的网关进行重选MME，则所述原MME的注册信息存储在所述HSS内已经没有价值了，所以，所述HSS可以发送取消注册消息给所述原MME，以取消掉所述原MME的注册信息，节省所述HSS的存储空间，也避免了所述UE断开与所述3GPP接入网后，再次接入所述3GPP接入网时，造成不必要的判断流程，提高了所述UE接入3GPP接入网的效率。
本发明实施例中，HSS接收新MME发送的鉴权与授权请求消息，所述鉴权请求消息是由所述新MME根据UE通过3GPP接入网发送的接入请求消息发送的，若所述新MME与所述HSS注册的所述原MME不同，则所述HSS将所述原MME的标识发送给所述新MME，以使得所述新MME根据所述原MME的标识发送重选指示给所述原MME，以指示所述原MME发送终止会话请求给所述非3GPP接入网的网关，以使得所述非3GPP接入网的网关终止与所述原MME的会话并根据所述新MME的标识选择所述新MME并建立会话。这样，UE先接入非3GPP接入网时，所述非3GPP接入网的网关确定了一个原MME，并且建立了会话连接，所述UE再接入3GPP接入网时，所述3GPP接入网也确定了一个新MME，而当所述HSS判断所述新MME与所述原MME不相同时，则会触发重选流程，使得所述非3GPP接入网的网关断开所述原MME之间的会话，并根据所述新MME的标识选择所述新MME，以保证所述非3GPP接入网的网关所选择的MME与所述3GPP接入网所选择的MME相同，提高了用户体验。
参照图7所示，本发明实施例中无线通信网络的接入方法的另一实施例包括：
本发明实施例用于用户设备UE接入第三代伙伴计划3GPP接入网，所述 UE已接入非3GPP接入网，原移动性管理网元MME通过所述非3GPP接入网为所述UE提供服务，且所述原MME已注册到归属用户服务器HSS。
701、所述原MME接收新MME发送的上下文请求消息，所述上下文请求消息携带有重选指示和所述新MME的标识，所述新MME为在所述UE接入所述3GPP接入网时由基站为所述UE选择的MME；
所述HSS确定所述HSS内已经存储的所述原MME与所述新MME不同时，则将所述原MME的标识发送给所述新MME，所述新MME接收到所述原MME的标识之后，则会根据所述原MME的标识获取所述原MME的地址，并发送山下文请求消息给所述原MME，所述上下文请求消息携带有重选指示和所述新MME的标识，以使得所述原MME结束与所述非3GPP接入网的网关的会话，并指示所述非3GPP接入网的网关进行重选MME。
可选步骤702、所述原MME将所述UE的上下文内容发送给所述新MME；
由于所述原MME已经与所述非3GPP接入网的网关建立了连接并可能进行了会话，所以所述原MME则可以将所述UE的上下文内容发送给所述新MME，以保证所述非3GPP接入网的网关接入到所述新MME时能保证数据的完整性。
703、所述原MME根据所述重选指示，发送终止会话请求给所述非所述3GPP接入网关，所述终止会话请求携带有所述新MME的标识，以使得非3GPP接入网的网关终止与所述原MME的会话并建立与所述新MME的会话；
当所述原MME接收到所述重选指示后，则会发送终止会话请求给所述非3GPP接入网的网关，以请求所述非3GPP接入网的网关终止与所述原MME的会话，所述终止会话请求内还携带所述新MME的标识，以指示所述非3GPP接入网的网关根据所述新MME的标识选择所述新MME。
可选的，可以通过协议约定，当所述非3GPP接入网的网关接收到所述原MME发送的终止会话请求以及新MME的标识后，则会触发重选流程，以使得所述非3GPP接入网的网关根据所述新MME的标识选择所述新MME；也可以是所述原MME在发送了所述终止会话请求以及所述新MME的标识后，再发送一个重选指示给所述非3GPP接入网的网关，指示所述非3GPP接入网的网关根据所述新MME的标识选择所述新MME。
本发明实施例中，原MME接收所述新MME发送的上下文请求消息，所述上下文请求消息携带有重选指示和所述新MME的标识，所述原MME根据所述重选指示，发送终止会话请求给所述非3GPP接入网的网关，所述终止会话请求携带有所述新MME的标识，这样，所述非3GPP接入网的网关接收到所述终止会话请求后，则的网关终止与所述原MME的会话并根据所述新MME的标识选择所述新MME并建立会话，使得所述非3GPP接入网的网关所选择的MME与所述3GPP接入网的网关所选择的MME相同，提高了用户体验。
参照图8所示，本发明实施例中无线通信网络的接入方法的另一实施例包括：
本发明实施例用于用户设备UE接入第三代伙伴计划3GPP接入网，所述UE已接入非3GPP接入网，原移动性管理网元MME通过所述非3GPP接入网为所述UE提供服务，且所述原MME已注册到归属用户服务器HSS。
801、所述非3GPP接入网的网关接收所述原MME发送的终止会话请求，所述终止会话请求携带有新MME的标识，所述新MME为在所述UE接入所述3GPP接入网时由基站为所述UE选择的MME；
802、所述非3GPP接入网的网关根据所述终止会话请求断开与所述原MME的会话；
由于所述非3GPP接入网的网关与所述原MME已经建立会话，所述终止会话请求携带有所述新MME的标识，即指示所述非3GPP接入网的网关根据所述新MME的标识重选MME，则需要终止与所述原MME的会话。
803、所述非3GPP接入网的网关根据所述新MME的标识选择所述新MME；
为了使得所述非3GPP接入网所选择的MME与所述3GPP接入网所选择的MME相同，所以在所述非3GPP接入网进行重选MME时，则根据所述新MME的标识选择所述新MME。
804、所述非3GPP接入网的网关与所述新MME建立会话。
本发明实施例中，所述非3GPP接入网的网关接收所述原MME发送的终止会话请求，所述终止会话请求携带有新MME的标识，所述新MME为在所 述UE接入所述3GPP接入网时由基站为所述UE选择的MME，所述非3GPP接入网的网关根据所述终止会话请求断开与所述原MME的会话，所述非3GPP接入网的网关根据所述新MME的标识选择所述新MME，所述非3GPP接入网的网关与所述新MME建立会话，这样，使得所述非3GPP接入网的网关所选择的MME与所述3GPP接入网的网关所选择的MME相同，提高了用户体验。
参照图9所示，本发明实施例中无线通信网络的接入方法的另一实施例包括：
901、用户设备UE获取通过第一接入网为所述UE提供服务的原移动性管理网元MME的标识，所述原MME具备非第三代伙伴计划3GPP接入网的认证授权功能；
上述实施例所描述的均为所述UE先接入一个第一接入网，第一接入网确定了新MME，所述UE再接入第二接入网，第二接入网确定了原MME，再根据HSS判断第一接入网所确定的新MME与第二接入网所确定的原MME不相同时，指示第一接入网或第二接入网进行重选MME，以实现第一接入网所确定的MME与第二接入网所确定的MME相同，实现UE的统一控制。在实际应用中，还能通过UE在接入了第一接入网后，接入第二接入网时，根据第一接入网的设备所确定的MME指示第二接入网的设备选择所述MME，无需第二接入网自行选择一个MME，也避免了后续的重选流程。
所以，所述UE在接入所述第一接入网时，则获取所述第一接入网的设备所确定的原MME的标识，用于当所述UE接入第二接入网时，指示所述第二接入网根据所述原MME的标识选择目标MME。
902、所述UE发送接入请求消息给第二接入网，所述接入请求消息包含所述原MME的标识，所述原MME的标识用于所述第二接入网的设备根据所选择目标MME；
当所述UE需要接入所述第二接入网时，则需要发送接入请求消息给所述第二接入网，而在所述接入请求消息内，则需要包含所述原MME的标识，以指示所述第二接入网的设备根据所述原MME的标识选择目标MME，避免所述第二接入网的设备自行选择MME，为了使得所述第二接入网的设备所选择 的MME与所述第一接入网的设备所选择的MME相同，所述第二接入网根据所述原MME的标识所选择的目标MME即为所述原MME。
本发明实施例中，用户设备UE获取通过第一接入网为所述UE提供服务的原移动性管理网元MME的标识，所述原MME具备非第三代伙伴计划3GPP接入网的认证授权功能，所述UE发送接入请求消息给第二接入网，所述接入请求消息包含所述原MME的标识，所述原MME的标识用于所述第二接入网的设备选择目标MME。这样，所述UE接入所述第二接入网时，根据所述原MME的标识选择目标MME，避免所述第二接入网的设备自行选择MME，造成所述第二接入网的设备所选择的MME与所述第一接入网的设备所选择的MME不相同，实现了所述UE对所述第一接入网以及所述第二接入网的统一控制。
上述实施例描述了UE接入第一接入网，所述UE获取所述原MME的标识，所述UE发送接入请求消息给第二接入网，所述接入请求消息内包含所述原MME的标识。在实际应用中，第一接入网可以为3GPP接入网，第二接入网可以为非3GPP接入网，下面进行具体描述，参照图10所示，本发明实施例中无线通信网络的接入方法的另一实施例包括：
1001、所述用户设备UE执行跟踪区更新TAU流程或3GPP内部切换流程，以使得所述UE选择最合适的原MME，所述最合适的原MME为距离所述UE最近的且负载空闲的MME；
由于所述UE通常为移动设备，而UE在移动的过程中，需要进行MME的切换，为了保证所述UE在接入3GPP接入网时，所确定的原MME为最合适的MME，则需要先执行TAU流程或3GPP内部切换流程。当所述UE为空闲态时，则可以执行TAU流程，以使得所述UE能够连接的3GPP接入网为最佳的接入网；当所述UE与所述3GPP接入网处理连接态时，则可以根据测试周围的MME的距离，切换到最合适的原MME，所述最合适的原MME为距离所述UE最近且负载空闲的MME。
1002、所述UE接收所述原MME发送的所述原MME的标识，所述原MME具备非3GPP接入网的认证授权功能，且所述原MME由基站eNodeB确定为所述UE服务；
可选的，当所述UE接入所述原MME后，所述原MME可以给UE分配一个标识信息，所述标识信息可以为GUTI值，该GUTI值中包括所述原MME的标识，以使得UE存储该GUTI值。
1003、所述UE发送接入请求消息给非3GPP接入网，所述接入请求消息内包含所述原MME的标识，所述原MME的标识用于所述UE接入所述非3GPP接入网的网关根据所述原MME的标识选择所述目标MME；
详细内容参照S902所述。
本发明实施例中，第一接入网为3GPP接入网，第二接入网为非3GPP接入网；UE在接入所述3GPP接入网之前，先执行TAU流程或者3GPP内部切换流程，使得所述UE当前所选择的原MME为最合适的MME，提高了所述UE的网络通信效率。
上述实施例描述了第一接入网为3GPP接入网，第二接入网为非3GPP接入网，在实际应用中，第一接入网也可以为非3GPP接入网，第二接入网可以为3GPP接入网，下面进行具体描述，参照图11所示，本发明实施例中无线通信网络的接入方法的另一实施例包括：
1101、所述UE发送接入请求消息给所述非3GPP接入网的网关；
可选的，所述接入请求消息可以为因特网密钥交换第二版本IKEv2信令或者无线局域网控制协议WLCP信令。用于为了保证所述非3GPP接入网与所述UE在进行数据信令通信的安全。
1102、所述UE接收原MME发送的响应信息，所述原MME为所述非3GPP接入网的网关所选择的MME，所述响应信息由归属用户服务器HSS接收到所述MME发送的鉴权请求消息后发送给所述MME，所述响应消息用于指示所述UE成功接入非3GPP接入网；
在所述UE接入所述非3GPP接入网的过程中，需要发送鉴权请求消息给所述原MME，使得所述MME转发所述鉴权请求消息给HSS，所述HSS接收到所述鉴权请求消息后，则会发送响应消息通过所述原MME转发给所述UE，指示所述UE成功接入到所述非3GPP接入网。
1103、所述UE接收所述原MME发送的所述原MME的标识，所述原MME具备非3GPP接入网的认证授权功能，且所述原MME由非3GPP接入 网的网关确定为所述UE服务；
详细内容参照S1002所述。
1104、所述UE发送接入请求消息给3GPP接入网，所述接入请求消息包含所述原MME的标识，所述原MME的标识用于所述3GPP接入网的基站eNodeB根据所述原MME的标识选择目标MME；
详细内容参照S1003所述。
本发明实施例中，第一接入网为非3GPP接入网，第二接入网为3GPP接入网，所述UE在接入所述非3GPP接入网时，先发送用于加密协议的接入请求消息给所述非3GPP接入网的网关，保证了所述非3GPP接入网与所述UE在进行数据信令通信的安全，提高了UE进行无线网络通信的安全性。
参照图12所示，本发明实施例中非第三代伙伴计划3GPP接入网的网关的一个实施例包括：
接收单元1201，用于接收用户设备UE发送的接入请求消息，所述UE已接入3GPP接入网，且原移动性管理网元MME为所述UE提供服务；
详细内容参照S101所述。
处理单元1202，用于所述接收单元1201接收到所述接入请求消息后，选择新MME为所述UE服务；
详细内容参照S102所述。
发送单元1203，用于发送鉴权与授权请求消息给所述新MME；
详细内容参照S103所述。
所述接收单元1201还用于接收所述新MME发送的响应消息，所述响应消息包含所述原MME的标识；
详细内容参照S104所述。
所述处理单元1202还用于根据所述原MME的标识选择所述原MME为所述UE服务；
详细内容参照S105所述。
所述处理单元1202还用于建立与所述原MME的会话；
详细内容参照S106所述。
在另一个实施例中，所述接入请求消息包括双接入指示信息，所述鉴权与 授权请求消息包含所述双接入指示信息；其中，所述双接入指示信息用于指示所述UE同时接入3GPP接入网和非3GPP接入网
详细内容参照S201以及S203所述。
参照图13所示，本发明实施例中归属用户服务器HSS的一个实施例包括：
接收单元1301，用于通过新MME接收到所述非3GPP接入网的网关发送的鉴权与授权请求消息，所述新MME为所述非3GPP接入网接收到所述UE发送的接入请求消息后所选择的；
详细内容参照S301所述。
发送单元1302，用于将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关，以使得所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME，并与所述原MME建立会话；
详细内容参照S302所述。
在另一个实施例中，所述发送单元1302具体用于：
若所述新MME与所述原MME不同，则所述发送单元将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关；
所述鉴权与授权请求消息包含所述双接入指示信息；其中，所述双接入指示信息用于指示所述UE同时接入3GPP接入网和非3GPP接入网；
所述HSS还包括处理单元1303，所述发送单元1302具体还用于：
当所述处理单元1303根据所述双接入指示信息获取所述原MME的标识之后，将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关；或者，
当所述处理单元1303根据所述双接入指示信息获取所述原MME的标识之后，通过所述新MME发送重选指示以及所述原MME的标识给所述非3GPP接入网的网关。
详细内容参照S402所述。
参照图14所示，本发明实施例中移动性管理网元MME的一个实施例包括：
本发明实施例中所述MME为新MME。
接收单元1401，用于接收所述非3GPP接入网的网关发送的鉴权与授权请 求消息；
详细内容参照S501所述。
发送单元1402，用于将所述鉴权与授权请求消息发送给所述HSS；
所述接收单元还用于接收所述HSS发送的所述原MME的标识；
详细内容参照S503所述。
所述发送单元1402还用于发送响应消息给所述非3GPP接入网的网关，所述响应消息包含所述原MME的标识，以指示所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME；
详细内容参照S504所述。
参照图15所示，本发明实施例中归属用户服务器HSS的另一实施例包括：
本发明实施例用于用户设备UE接入第三代伙伴计划3GPP接入网，所述UE已接入非3GPP接入网，原移动性管理网元MME通过所述非3GPP接入网为所述UE提供服务，且所述原MME已注册到归属用户服务器HSS。
接收单元1501，用于接收新MME发送的鉴权与授权请求消息，所述鉴权请求消息是由所述新MME根据所述UE通过所述3GPP接入网发送的接入请求消息发送的；
详细内容参照S601所述。
发送单元1502，用于当所述新MME与所述HSS已注册的所述原MME不同时，则将所述原MME的标识发送给所述新MME，以使得所述新MME根据所述原MME的标识发送重选指示给所述原MME，以指示所述原MME发送终止会话请求给所述非3GPP接入网的网关；
在另一个实施例中，所述重选指示依附在所述新MME发送给所述原MME的上下文请求消息内，所述重选指示为重选指示信令，所述重选指示信令携带有所述新MME的标识，或者，所述重选指示为所述新MME的标识；所述终止会话请求携带所述新MME的标识，以使得所述非3GPP接入网的网关终止与所述原MME的会话并根据所述新MME的标识选择所述新MME。
详细内容参照S602所述。
在另一个实施例中，所述HSS还包括存储单元1503，用于存储所述新MME；
所述发送单元1502还用于：
当所述存储单元1503存储所述新MME之后，则发送取消注册消息给所述原MME，取消所述原MME的注册信息；
详细内容参照S603所述。
参照图16所示，本发明实施例中移动性管理网元MME的另一实施例包括：
本发明实施例中所述MME为原MME。
本发明实施例用于用户设备UE接入第三代伙伴计划3GPP接入网，所述UE已接入非3GPP接入网，原移动性管理网元MME通过所述非3GPP接入网为所述UE提供服务，且所述原MME已注册到归属用户服务器HSS。
接收单元1601，用于接收新MME发送的上下文请求消息，所述上下文请求消息携带有重选指示和所述新MME的标识，所述新MME为在所述UE接入所述3GPP接入网时由基站为所述UE选择的MME；
详细内容参照S701所述。
发送单元1602，用于根据所述重选指示，发送终止会话请求给所述非3GPP接入网的网关，所述终止会话请求携带有所述新MME的标识，以使得所述非3GPP接入网的网关根据所述终止会话请求终止与所述原MME的会话并建立与所述新MME的会话；
详细内容参照S703所述。
在另一个实施例中，所述发送单元1602还用于：在所述接收单元接收所述新MME发送的上下文请求消息后，将所述UE的上下文内容发送给所述新MME；
详细内容参照S702所述。
参照图17所示，本发明实施例中非第三代伙伴计划3GPP接入网的网关的另一实施例包括：
本发明实施例用于用户设备UE接入第三代伙伴计划3GPP接入网，所述UE已接入非3GPP接入网，原移动性管理网元MME通过所述非3GPP接入网为所述UE提供服务，且所述原MME已注册到归属用户服务器HSS。
接收单元1701，用于接收所述原MME发送的终止会话请求，所述终止 会话请求携带有新MME的标识，所述新MME为在所述UE接入所述3GPP接入网时由基站为所述UE选择的MME；
详细参照S801所述。
处理单元1702，用于根据所述终止会话请求断开与所述原MME的会话；
详细内容参照S802所述。
所述处理单元1702还用于根据所述新MME的标识选择所述新MME；
详细内容参照S803所述。
所述处理单元1702还用于与所述新MME建立会话。
参照图18所示，本发明实施例中用户设备UE的一个实施例包括：
处理单元1801，用于获取通过第一接入网为所述UE提供服务的原移动性管理网元MME的标识，所述原MME具备非第三代伙伴计划3GPP接入网的认证授权功能；
详细内容参照S901所述。
发送单元1802，用于发送接入请求消息给第二接入网，所述接入请求消息包含所述原MME的标识，所述原MME的标识用于所述第二接入网的设备选择目标MME；
详细内容参照S902所述。
在另一个实施例中，所述第一接入网为3GPP接入网，所述第二接入网为非3GPP接入网，所述第二接入网的设备为非3GPP接入网的网关；
所述处理单元1801还用于执行跟踪区更新TAU流程或3GPP内部切换流程，以使得所述UE选择最合适的原MME，所述最合适的原MME为距离所述UE最近的且负载空闲的MME；
详细内容参照S1001所述。
所述UE还包括：接收单元1803，用于接收所述原MME发送的所述原MME的标识。
所述接收单元1803具体用于：接收所述原MME发送的所述UE的标识信息，所述UE的标识信息包含所述原MME的标识。
详细内容参照S1002所述。
在另一个实施例中，所述第一接入设备为非3GPP接入网，所述第二接入 网为3GPP接入网，所述第二接入网的设备为基站eNodeB。
接收单元1803具体还用于：接收原MME发送的响应信息，所述原MME为所述非3GPP接入网的网关所选择的MME，所述响应信息由归属用户服务器HSS接收到所述MME发送的鉴权请求消息后发送给所述MME，所述响应消息用于指示所述UE成功接入非3GPP接入网；
详细内容参照S1102所述。
图12、图17所示的实施例从功能单元的角度对非第三代伙伴计划3GPP接入网的网关设备的具体结构进行了说明，以下结合图19所示的实施例从硬件角度对非3GPP接入网的网关设备的具体结构进行说明：
如图19所示，该网关设备包括：通信接口1902、处理器1903和存储器1904。
本发明实施例涉及的网关设备可以具有比图19所示出的更多或更少的部件，可以组合两个或更多个部件，或者可以具有不同的部件配置或设置，各个部件可以在包括一个或多个信号处理和/或专用集成电路在内的硬件、软件或硬件和软件的组合实现。
通信接口1902，用于接收UE发送的接入请求消息，所述UE已接入3GPP接入网，且原移动性管理网元MME为所述UE提供服务；
处理器1903，用于通信接口1902接收到所述接入请求消息后，选择新MME为所述UE服务；
处理器1903，还用于通过通信接口1902发送鉴权与授权请求消息给所述新MME；
所述通信接口1902，还用于接收所述新MME发送的响应消息，所述响应消息包含所述原MME的标识；
所述处理器1903还用于根据所述原MME的标识选择所述原MME为所述UE服务；
所述处理器1903还用于建立与所述原MME的会话。
其中，所述通信接口1902可以包含一个或多个接口。
在另一个实施例中，所述接收器1902，还用于接收所述原MME发送的 终止会话请求，所述终止会话请求携带有新MME的标识，所述新MME为在所述UE接入所述3GPP接入网时由基站为所述UE选择的MME；
所述处理器1903还用于根据所述终止会话请求断开与所述原MME的会话；
所述处理器1903还用于根据所述新MME的标识选择所述新MME；
所述处理器1903还用于与所述新MME建立会话。
图13、图15所示的实施例从功能单元的角度对归属用户服务器HSS设备的具体结构进行了说明，以下结合图20所示的实施例从硬件角度对HSS设备的具体结构进行说明：
如图20所示，该网关设备包括：通信接口2002、处理器2003和存储器2004。
本发明实施例涉及的HSS设备可以具有比图20所示出的更多或更少的部件，可以组合两个或更多个部件，或者可以具有不同的部件配置或设置，各个部件可以在包括一个或多个信号处理和/或专用集成电路在内的硬件、软件或硬件和软件的组合实现。
通信接口2002，用于通过新MME接收到所述非3GPP接入网的网关发送的鉴权与授权请求消息，所述新MME为所述非3GPP接入网接收到所述UE发送的接入请求消息后所选择的；
处理器2003，用于通过所述通信接口2002将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关，以使得所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME，并与所述原MME建立会话；
在另一个实施例中，所述处理器2003具体用于：
若所述新MME与所述原MME不同，则通过所述通信接口2002将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关；
所述鉴权与授权请求消息包含所述双接入指示信息；其中，所述双接入指示信息用于指示所述UE同时接入3GPP接入网和非3GPP接入网；
所述处理器2003具体还用于：
当所述处理器2003根据所述双接入指示信息获取所述原MME的标识之后，通过所述通信接口2002将所述原MME的标识通过所述新MME发送给 所述非3GPP接入网的网关；或者，
当所述处理器2003根据所述双接入指示信息获取所述原MME的标识之后，通过所述通信接口2002通过所述新MME发送重选指示以及所述原MME的标识给所述非3GPP接入网的网关。
在另一个实施例中，所述通信接口2002还用于接收新MME发送的鉴权与授权请求消息，所述鉴权请求消息是由所述新MME根据所述UE通过所述3GPP接入网发送的接入请求消息发送的；
所述处理器2003还用于当所述新MME与所述HSS已注册的所述原MME不同时，则通过所述通信接口2002将所述原MME的标识发送给所述新MME，以使得所述新MME根据所述原MME的标识发送重选指示给所述原MME，以指示所述原MME发送终止会话请求给所述非3GPP接入网的网关；
在另一个实施例中，所述重选指示依附在所述新MME发送给所述原MME的上下文请求消息内，所述重选指示为重选指示信令，所述重选指示信令携带有所述新MME的标识，或者，所述重选指示为所述新MME的标识；所述终止会话请求携带所述新MME的标识，以使得所述非3GPP接入网的网关终止与所述原MME的会话并根据所述新MME的标识选择所述新MME。
在另一个实施例中，所述存储单元2004，用于存储所述新MME；
所述处理器2003还用于：
当所述存储器2004存储所述新MME之后，则通过所述通信接口2002发送取消注册消息给所述原MME，取消所述原MME的注册信息。
其中，通信接口2002可以包含一个或多个接口。
图14、图16所示的实施例从功能单元的角度对移动性管理网元MME设备的具体结构进行了说明，以下结合图21所示的实施例从硬件角度对MME设备的具体结构进行说明：
如图21所示，该MME设备包括：通信接口2102、处理器2103和存储器2104。
本发明实施例涉及的MME设备可以具有比图21所示出的更多或更少的部件，可以组合两个或更多个部件，或者可以具有不同的部件配置或设置，各个部件可以在包括一个或多个信号处理和/或专用集成电路在内的硬件、软件 或硬件和软件的组合实现。
本发明实施例中所述MME为新MME。
通信接口2102，用于接收非3GPP接入网的网关发送的鉴权与授权请求消息；
处理器2103，用于通过所述通信接口2102将所述鉴权与授权请求消息发送给所述HSS；
所述通信接口2102还用于接收所述HSS发送的所述原MME的标识；
详细内容参照S503所述。
所述处理器2103还用于通过所述通信接口2102发送响应消息给所述非3GPP接入网的网关，所述响应消息包含所述原MME的标识，以指示所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME；
在另一个实施例中，所述MME为原MME。
所述通信接口2102还用于接收新MME发送的上下文请求消息，所述上下文请求消息携带有重选指示和所述新MME的标识，所述新MME为在所述UE接入所述3GPP接入网时由基站为所述UE选择的MME；
所述处理器2103还用于根据所述重选指示，通过所述通信接口2102发送终止会话请求给所述非3GPP接入网的网关，所述终止会话请求携带有所述新MME的标识，以使得所述非3GPP接入网的网关根据所述终止会话请求终止与所述原MME的会话并建立与所述新MME的会话；
在另一个实施例中，所述处理器2103还用于在接收所述新MME发送的上下文请求消息后，通过所述通信接口2102将所述UE的上下文内容发送给所述新MME。
图18所示的实施例从功能单元的角度对用户设备UE的具体结构进行了说明，以下结合图22所示的实施例从硬件角度对UE的具体结构进行说明：
如图22所示，该UE包括：发射器2201、接收器2202、处理器2203和存储器2204。
本发明实施例涉及的UE可以具有比图22所示出的更多或更少的部件，可以组合两个或更多个部件，或者可以具有不同的部件配置或设置，各个部件可以在包括一个或多个信号处理和/或专用集成电路在内的硬件、软件或硬件 和软件的组合实现。
处理器2203，用于获取通过第一接入网为所述UE提供服务的原移动性管理网元MME的标识，所述原MME具备非第三代伙伴计划3GPP接入网的认证授权功能；
发射器2201，用于发送接入请求消息给第二接入网，所述接入请求消息包含所述原MME的标识，所述原MME的标识用于所述第二接入网的设备选择目标MME；
在另一个实施例中，所述第一接入网为3GPP接入网，所述第二接入网为非3GPP接入网，所述第二接入网的设备为非3GPP接入网的网关；
所述处理器2203还用于执行跟踪区更新TAU流程或3GPP内部切换流程，以使得所述UE选择最合适的原MME，所述最合适的原MME为距离所述UE最近的且负载空闲的MME；
所述接收器2202，用于接收所述原MME发送的所述原MME的标识。
所述接收器2202具体用于：接收所述原MME发送的所述UE的标识信息，所述UE的标识信息包含所述原MME的标识。
在另一个实施例中，所述第一接入设备为非3GPP接入网，所述第二接入网为3GPP接入网，所述第二接入网的设备为基站eNodeB。
所述接收器2202具体还用于：接收原MME发送的响应信息，所述原MME为所述非3GPP接入网的网关所选择的MME，所述响应信息由归属用户服务器HSS接收到所述MME发送的鉴权请求消息后发送给所述MME，所述响应消息用于指示所述UE成功接入非3GPP接入网。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
所属领域的技术人员可以清楚地了解到，为了描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实 现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口、装置或单元的间接耦合或通信连接，也可以是电的，机械的或其它的形式连接。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本发明实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以是两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。具体的，可以借助软件加必需的通用硬件的方式来实现，通用硬件包括通用集成电路、通用CPU、通用存储器、通用元器件等，当然也可以通过专用硬件包括专用集成电路、专用CPU、专用存储器、专用元器件等来实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分，或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(英文：Read-Only Memory，简称为ROM)、随机存取存储器(英文：Random Access Memory，简称为RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进 行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (32)

  1. 一种无线通信网络的接入方法，其特征在于，所述方法包括：
    非第三代伙伴计划3GPP接入网的网关接收用户设备UE发送的接入请求消息，所述UE已接入3GPP接入网，且原移动性管理网元MME为所述UE提供服务；
    所述非3GPP接入网的网关接收到所述接入请求消息后，选择新MME为所述UE服务；
    所述非3GPP接入网的网关发送鉴权与授权请求消息给所述新MME；
    所述非3GPP接入网的网关接收所述新MME发送的响应消息，所述响应消息包含所述原MME的标识；
    所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME为所述UE服务；
    所述非3GPP接入网的网关建立与所述原MME的会话。
  2. 根据权利要求1所述的方法，其特征在于，所述接入请求消息包括双接入指示信息，所述鉴权与授权请求消息包含所述双接入指示信息；
    其中，所述双接入指示信息用于指示所述UE同时接入3GPP接入网和非3GPP接入网。
  3. 一种无线通信网络的接入方法，其特征在于，所述方法用于用户设备UE接入非第三代伙伴计划3GPP接入网，所述UE已经接入3GPP接入网，原移动性管理网元MME通过所述3GPP接入网为所述UE提供服务，且所述原MME已注册到归属用户服务器HSS，所述方法包括：
    所述HSS通过新MME接收到所述非3GPP接入网的网关发送的鉴权与授权请求消息，所述新MME为所述非3GPP接入网接收到所述UE发送的接入请求消息后所选择的；
    所述HSS将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关，以使得所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME，并与所述原MME建立会话。
  4. 根据权利要求3所述的方法，其特征在于，所述HSS将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关包括：
    若所述新MME与所述原MME不同，则所述HSS将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关。
  5. 根据权利要求3所述的方法，其特征在于，所述鉴权与授权请求消息包含所述双接入指示信息；其中，所述双接入指示信息用于指示所述UE同时接入3GPP接入网和非3GPP接入网；
    所述HSS将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关包括：
    所述HSS根据所述双接入指示信息获取所述原MME的标识，并将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关；或者，
    所述HSS根据所述双接入指示信息获取所述原MME的标识，并通过所述新MME发送重选指示以及所述原MME的标识给所述非3GPP接入网的网关。
  6. 一种无线通信网络的接入方法，其特征在于，所述方法用于用户设备UE接入非第三代伙伴计划3GPP接入网，所述UE已经接入3GPP接入网，原移动性管理网元MME通过所述3GPP接入网为所述UE服务，且所述原MME已注册到归属用户服务器HSS，所述方法包括：
    所述新MME接收所述非3GPP接入网的网关发送的鉴权与授权请求消息；
    所述新MME将所述鉴权与授权请求消息发送给所述HSS；
    所述新MME接收所述HSS发送的所述原MME的标识；
    所述新MME发送响应消息给所述非3GPP接入网的网关，所述响应消息包含所述原MME的标识，以指示所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME。
  7. 一种无线通信网络的接入方法，其特征在于，所述方法用于用户设备UE接入第三代伙伴计划3GPP接入网，所述UE已接入非3GPP接入网，原移动性管理网元MME通过所述非3GPP接入网为所述UE提供服务，且所述原MME已注册到归属用户服务器HSS，所述方法包括：
    所述HSS接收新MME发送的鉴权与授权请求消息，所述鉴权请求消息是由所述新MME根据所述UE通过所述3GPP接入网发送的接入请求消息发 送的；
    若所述新MME与所述HSS已注册的所述原MME不同，则所述HSS将所述原MME的标识发送给所述新MME，以使得所述新MME根据所述原MME的标识发送重选指示给所述原MME，以指示所述原MME发送终止会话请求给所述非3GPP接入网的网关。
  8. 根据权利要求7所述的方法，其特征在于，所述重选指示依附在所述新MME发送给所述原MME的上下文请求消息内，所述重选指示为重选指示信令，所述重选指示信令携带有所述新MME的标识，或者，所述重选指示为所述新MME的标识；
    所述终止会话请求携带所述新MME的标识，以使得所述非3GPP接入网的网关终止与所述原MME的会话并根据所述新MME的标识选择所述新MME。
  9. 根据权利要求7或8所述的方法，其特征在于，当所述HSS存储所述新MME之后，所述方法还包括：
    所述HSS发送取消注册消息给所述原MME，取消所述原MME的注册信息。
  10. 一种无线通信网络的接入方法，其特征在于，所述方法用于用户设备UE接入第三代伙伴计划3GPP接入网，所述UE已接入非3GPP接入网，原移动性管理网元MME通过所述非3GPP接入网为所述UE提供服务，且所述原MME已注册到归属用户服务器HSS，所述方法包括：
    所述原MME接收新MME发送的上下文请求消息，所述上下文请求消息携带有重选指示和所述新MME的标识，所述新MME为在所述UE接入所述3GPP接入网时由基站为所述UE选择的MME；
    所述原MME根据所述重选指示，发送终止会话请求给所述非3GPP接入网的网关，所述终止会话请求携带有所述新MME的标识，以使得所述非3GPP接入网的网关根据所述终止会话请求终止与所述原MME的会话并建立与所述新MME的会话。
  11. 根据权利要求10所述的方法，其特征在于，在所述原MME接收所述新MME发送的上下文请求消息后，所述方法还包括：
    所述原MME将所述UE的上下文内容发送给所述新MME。
  12. 一种无线通信网络的接入方法，其特征在于，所述方法用于用户设备UE接入第三代伙伴计划3GPP接入网，所述UE已接入非3GPP接入网，原移动性管理网元MME通过所述非3GPP接入网为所述UE提供服务，且所述原MME已注册到归属用户服务器HSS，所述方法包括：
    所述非3GPP接入网的网关接收所述原MME发送的终止会话请求，所述终止会话请求携带有新MME的标识，所述新MME为在所述UE接入所述3GPP接入网时由基站为所述UE选择的MME；
    所述非3GPP接入网的网关根据所述终止会话请求断开与所述原MME的会话；
    所述非3GPP接入网的网关根据所述新MME的标识选择所述新MME；
    所述非3GPP接入网的网关与所述新MME建立会话。
  13. 一种无线通信网络的接入方法，其特征在于，所述方法包括：
    用户设备UE获取通过第一接入网为所述UE提供服务的原移动性管理网元MME的标识，所述原MME具备非第三代伙伴计划3GPP接入网的认证授权功能；
    所述UE发送接入请求消息给第二接入网，所述接入请求消息包含所述原MME的标识，所述原MME的标识用于所述第二接入网的设备选择目标MME。
  14. 根据权利要求13所述的方法，其特征在于，所述第一接入网为3GPP接入网，所述第二接入网为非3GPP接入网，所述第二接入网的设备为非3GPP接入网的网关；或者，
    所述第一接入设备为非3GPP接入网，所述第二接入网为3GPP接入网，所述第二接入网的设备为基站eNodeB。
  15. 根据权利要求13或14所述的方法，其特征在于，所述UE获取通过第一接入网为所述UE提供服务的所述原MME的标识包括：
    所述UE接收所述原MME发送的所述原MME的标识。
  16. 根据权利要求15所述的方法，其特征在于，所述UE接收所述原MME发送的所述MME的标识包括：所述UE接收所述原MME发送的所述UE的 标识信息，所述UE的标识信息包含所述原MME的标识。
  17. 一种非第三代伙伴计划3GPP接入网的网关，其特征在于，所述网关包括：
    接收单元，用于接收用户设备UE发送的接入请求消息，所述UE已接入3GPP接入网，且原移动性管理网元MME为所述UE提供服务；
    处理单元，用于所述接收单元接收到所述接入请求消息后，选择新MME为所述UE服务；
    发送单元，用于发送鉴权与授权请求消息给所述新MME；
    所述接收单元还用于接收所述新MME发送的响应消息，所述响应消息包含所述原MME的标识；
    所述处理单元还用于根据所述原MME的标识选择所述原MME为所述UE服务；
    所述处理单元还用于建立与所述原MME的会话。
  18. 根据权利要求17所述的网关，其特征在于，所述接入请求消息包括双接入指示信息，所述鉴权与授权请求消息包含所述双接入指示信息；
    其中，所述双接入指示信息用于指示所述UE同时接入3GPP接入网和非3GPP接入网。
  19. 一种归属用户服务器HSS，其特征在于，所述HSS用于用户设备UE接入非第三代伙伴计划3GPP接入网，所述UE已经接入3GPP接入网，原移动性管理网元MME通过所述3GPP接入网为所述UE提供服务，且所述原MME已注册到所述HSS，所述HSS包括：
    接收单元，用于通过新MME接收到所述非3GPP接入网的网关发送的鉴权与授权请求消息，所述新MME为所述非3GPP接入网接收到所述UE发送的接入请求消息后所选择的；
    发送单元，用于将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关，以使得所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME，并与所述原MME建立会话。
  20. 根据权利要求19所述的HSS，其特征在于，所述发送单元具体用于：
    若所述新MME与所述原MME不同，则所述发送单元将所述原MME的 标识通过所述新MME发送给所述非3GPP接入网的网关。
  21. 根据权利要求19所述的HSS，其特征在于，所述鉴权与授权请求消息包含所述双接入指示信息；其中，所述双接入指示信息用于指示所述UE同时接入3GPP接入网和非3GPP接入网；
    所述发送单元具体还用于：
    当根据所述双接入指示信息获取所述原MME的标识之后，将所述原MME的标识通过所述新MME发送给所述非3GPP接入网的网关；或者，
    当根据所述双接入指示信息获取所述原MME的标识之后，通过所述新MME发送重选指示以及所述原MME的标识给所述非3GPP接入网的网关。
  22. 一种移动性管理网元MME，当所述MME为新MME时，其特征在于，所述新MME用于用户设备UE接入非第三代伙伴计划3GPP接入网，所述UE已经接入3GPP接入网，原MME通过所述3GPP接入网为所述UE服务，且所述原MME已注册到归属用户服务器HSS，所述新MME包括：
    接收单元，用于接收所述非3GPP接入网的网关发送的鉴权与授权请求消息；
    发送单元，用于将所述鉴权与授权请求消息发送给所述HSS；
    所述接收单元还用于接收所述HSS发送的所述原MME的标识；
    所述发送单元还用于发送响应消息给所述非3GPP接入网的网关，所述响应消息包含所述原MME的标识，以指示所述非3GPP接入网的网关根据所述原MME的标识选择所述原MME。
  23. 一种归属用户服务器HSS，其特征在于，所述HSS用于用户设备UE接入第三代伙伴计划3GPP接入网，所述UE已接入非3GPP接入网，原移动性管理网元MME通过所述非3GPP接入网为所述UE提供服务，且所述原MME已注册到HSS，所述HSS包括：
    接收单元，用于接收新MME发送的鉴权与授权请求消息，所述鉴权请求消息是由所述新MME根据所述UE通过所述3GPP接入网发送的接入请求消息发送的；
    发送单元，用于当所述新MME与所述HSS已注册的所述原MME不同时，则将所述原MME的标识发送给所述新MME，以使得所述新MME根据所述 原MME的标识发送重选指示给所述原MME，以指示所述原MME发送终止会话请求给所述非3GPP接入网的网关。
  24. 根据权利要求23所述的HSS，其特征在于，所述重选指示依附在所述新MME发送给所述原MME的上下文请求消息内，所述重选指示为重选指示信令，所述重选指示信令携带有所述新MME的标识，或者，所述重选指示为所述新MME的标识；
    所述终止会话请求携带所述新MME的标识，以使得所述非3GPP接入网的网关终止与所述原MME的会话并根据所述新MME的标识选择所述新MME。
  25. 根据权利要求23或24所述的HSS，其特征在于，所述HSS还包括存储单元，用于存储所述新MME；
    所述发送单元还用于：
    当所述存储单元存储所述新MME之后，则发送取消注册消息给所述原MME，取消所述原MME的注册信息。
  26. 一种移动性管理网元MME，当所述MME为原MME时，其特征在于，所述原MME用于用户设备UE接入第三代伙伴计划3GPP接入网，所述UE已接入非3GPP接入网，原MME通过所述非3GPP接入网为所述UE提供服务，且所述原MME已注册到归属用户服务器HSS，所述原MME包括：
    接收单元，用于接收新MME发送的上下文请求消息，所述上下文请求消息携带有重选指示和所述新MME的标识，所述新MME为在所述UE接入所述3GPP接入网时由基站为所述UE选择的MME；
    发送单元，用于根据所述重选指示，发送终止会话请求给所述非3GPP接入网的网关，所述终止会话请求携带有所述新MME的标识，以使得所述非3GPP接入网的网关根据所述终止会话请求终止与所述原MME的会话并建立与所述新MME的会话。
  27. 根据权利要求26所述的原MME，其特征在于，所述发送单元还用于：
    在所述接收单元接收所述新MME发送的上下文请求消息后，将所述UE的上下文内容发送给所述新MME。
  28. 一种非第三代伙伴计划3GPP接入网的网关，其特征在于，所述网关用于用户设备UE接入3GPP接入网，所述UE已接入非3GPP接入网，原移动性管理网元MME通过所述非3GPP接入网为所述UE提供服务，且所述原MME已注册到归属用户服务器HSS，所述网关包括：
    接收单元，用于接收所述原MME发送的终止会话请求，所述终止会话请求携带有新MME的标识，所述新MME为在所述UE接入所述3GPP接入网时由基站为所述UE选择的MME；
    处理单元，用于根据所述终止会话请求断开与所述原MME的会话；
    所述处理单元还用于根据所述新MME的标识选择所述新MME；
    所述处理单元还用于与所述新MME建立会话。
  29. 一种用户设备UE，其特征在于，所述UE包括：
    处理单元，用于获取通过第一接入网为所述UE提供服务的原移动性管理网元MME的标识，所述原MME具备非第三代伙伴计划3GPP接入网的认证授权功能；
    发送单元，用于发送接入请求消息给第二接入网，所述接入请求消息包含所述原MME的标识，所述原MME的标识用于所述第二接入网的设备选择目标MME。
  30. 根据权利要求29所述的UE，其特征在于，所述第一接入网为3GPP接入网，所述第二接入网为非3GPP接入网，所述第二接入网的设备为非3GPP接入网的网关；或者，
    所述第一接入设备为非3GPP接入网，所述第二接入网为3GPP接入网，所述第二接入网的设备为基站eNodeB。
  31. 根据权利要求29或30所述的UE，其特征在于，所述UE还包括：
    接收单元，用于接收所述原MME发送的所述原MME的标识。
  32. 根据权利要求31所述的UE，其特征在于，所述接收单元具体用于：
    接收所述原MME发送的所述UE的标识信息，所述UE的标识信息包含所述原MME的标识。
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