CN103781189B - The acquisition methods and device of ANDSF information - Google Patents
The acquisition methods and device of ANDSF information Download PDFInfo
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- CN103781189B CN103781189B CN201210410325.8A CN201210410325A CN103781189B CN 103781189 B CN103781189 B CN 103781189B CN 201210410325 A CN201210410325 A CN 201210410325A CN 103781189 B CN103781189 B CN 103781189B
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Abstract
The invention discloses the acquisition methods and device of a kind of ANDSF information, wherein this method comprises: information of the non-3 GPP access network trusty to grouped data network gateway request ANDSF；Non-3 GPP access network trusty receives the response message from PGW, wherein the information of above-mentioned ANDSF is carried in the response message.Through the invention, solve the problems, such as in the related technology non-3 GPP access network trusty how from EPC obtain ANDSF information, compared to the mode being in advance stored in ANDSF information in the above-mentioned non-3 GPP access network trusty as Dynamic Host Configuration Protocol server, the information of the ANDSF got from PGW is more accurate, and acquisition modes are more flexible reliable.
Description
Technical field
The present invention relates to the communications fields, in particular to a kind of access network discovery and selection function (Access
NetworkDiscovery and Selection Function, referred to as ANDSF) information acquisition methods and device.
Background technique
Third generation partner program (3rd Generation Partnership Project, referred to as 3GPP) evolution
Grouping system (Evolved Packet System, referred to as EPS) wirelessly connect by the Universal Mobile Communication System land of evolution
Network (EvolvedUniversal Terrestrial Radio Access Network, referred to as E-UTRAN), moving tube
Manage unit (MobilityManagement Entity, referred to as MME), gateway (Serving Gateway, referred to as S-
GW), grouped data network gateway (Packet Data Network Gateway, referred to as P-GW PDN GW), ownership are used
Family server (HomeSubscriber Server, referred to as HSS), "Policy and Charging Rules Function (Policy and
Charging Rules Function, referred to as PCRF) entity and other support nodes composition.
Fig. 1 be according to the packet-based core networks of the 3GPP evolution of the relevant technologies (Evolved Packet Core, referred to as
EPC configuration diagram), as shown in Figure 1, mobile management unit (MME) is responsible for mobile management, the processing of Non-Access Stratum signaling
With the related work of the control planes such as the management of user's mobile management context；S-GW is that the access gateway being connected with E-UTRAN is set
It is standby, data are forwarded between E-UTRAN and P-GW, and be responsible for caching the pending datas such as paging；P-GW is then EPS and divides
The borde gateway of group data network (Packet Data Network, referred to as PDN) is responsible for the access of PDN and in EPS and PDN
Between forward the functions such as data；PCRF is "Policy and Charging Rules Function entity, it is assisted by receiving interface Rx and carrier network
It discusses (Internet Protocol, referred to as IP) business network to be connected, business information is obtained, in addition, it passes through Gx/Gxa/Gxc
Interface is connected with the gateway in network, is responsible for initiating the foundation of IP carrying, guarantees the service quality of business datum
(Quality ofService, referred to as QoS), and carry out charging control.
Access network discovery and selection function (Access Network Discovery and Selection Function,
Referred to as ANDSF) as access anchor point, it can be realized Intelligent network-selecting, by the interaction of network and terminal, realize network insertion
It effectively shunts, meets the operation direction of the following multi-network cooperative.ANDSF generates strategy, and terminal user's selection is helped most preferably to access
Network formats realize the collaboration of plurality of access modes.
In the related art, ANDSF is proposed in Release-8.When user equipment (User equipment, abbreviation
When selecting network to be registered for UE), if existed simultaneously, 3GPP accesses net and non-3 GPP access network, EPS can be according to UE
Current location information provides available access network information or inter-system mobility strategy (Inter- to UE by ANDSF
System Mobility Policy, referred to as ISMP), the information that UE uses ANDSF to provide selects suitable access net to carry out
Registration.If existing simultaneously multiple non-3 GPP access networks, the location information that EPS can be current according to UE is mentioned by ANDSF to UE
The letter for using ANDSF to provide for routing policy between system (Inter-System Routing Policy, referred to as ISRP), UE
Breath selects suitable access net to be shunted.Fig. 2 is to pass through the framework that S14 interface is connected with UE according to the ANDSF of the relevant technologies
Schematic diagram, as shown in Fig. 2, ANDSF is connected by S14 interface with UE, which uses open mobile alliance device management
(OpenMobileAlliance Device Management, referred to as OMADM) agreement.
In the related art, ANDSF can solve the access network selection problem that 3GPP is switched to non-3 gpp, also can solve connect more
Enter the shunting routing problem of terminal.Such as: have and activate the UE(IP Flow Mobility of IP stream migration ability
CapableUE, referred to as IFOM capable UE), the UE(Multiple that has and activate multiple access PDN concatenation ability
Access PDNConnectivity capable UE, referred to as MAPCON capable UE), have and activate seamed WLAN
UE(Non-seamless WLAN the offload capable UE, referred to as NSWO capable UE of separation capacity) point
Flow routing problem.
There are two types of the method for user equipment discovery ANDSF is current: DNS query and DHCP method.For DHCP method, at present
Only support the discovery address H-ANDSF.In addition, user equipment can be respectively from roaming place V-ANDSF and ownership under roaming scence
Ground H-ANDSF obtains access net or other policy informations.
Proxy mobile IPv 6 agreement (Proxy Mobile IPv6, referred to as PMIPv6) is a kind of network-based movement
IP management agreement, PMIPv6 do not need mobile device and participate in any mobile management work, and it is mobile to be responsible for user equipment by network
Management, mobile device itself do not perceive the influence of three layers of mobile bring connection.For UE, regardless of it is mobile where, UE
All think oneself on home link Home Link.Fig. 3 is to be based on the PMIPv6 network architecture and right according to the 3GPP of the relevant technologies
The schematic diagram for the interface answered, as shown in figure 3, the key node of PMIPv6 and function are as follows:
LMA:Local MobilityAnchor, local mobile anchor.The home agent of mobile node (for example, UE)
(HomeAgent), the topological anchor point of the home address of UE manages the binding routing of mobile node.The PDN GW in 3GPP network
LMA function is provided, the data forwarding being responsible between UE and Packet Data Network.
MAG:Mobile Access Gateway, Mobile Access Gateway.The variation of mobile handoff bring network layer is shielded,
It acts on behalf of UE and completes the work that binding updates.In the 3GPP network architecture, corresponding network element gateway Serving GW (S5/8),
Non-3 gpp IP access net Trusted Non-3GPP IP Access (S2a) of trust, evolution packet data gateway ePDG
(S2b) MAG function is provided.
Pass through agent binding update messages (Proxy Binding Update, referred to as PBU) and generation between LMA and MAG
Mobile management is acted on behalf of in reason binding acknowledgement message (Proxy Binding Acknowledgement, referred to as PBA) realization.PBU by
MAG is sent to LMA, and PBA is sent to MAG by LMA, and two message are with message to appearance.MAG passes through PBU for the generation of oneself
The home address binding relationship of reason address and user equipment (UE) saves the corresponding relationship to LMA, LMA to which correct route forwards UE
Uplink and downlink message.PBU is mainly used for binding and updates, and the binding period updates, and cancels binding, corresponding LMA to MAG by sending
PBA message authentication PBU request.
Dynamic host configuration protocol (Dynamic Host Configuration Protocol, referred to as DHCP) provides
A kind of IP parameter automatically configures mechanism, and host can be that the host in network automatically configure IP parameter by DHCP protocol, such as
IP address, dns server address, default gateway address etc..DHCP operational mode is a kind of CS(Client-Server) mode,
I.e. network host runs dhcp client module, disposes Dynamic Host Configuration Protocol server, that is, DHCP Server module in corresponding network.DHCP
DHCP Relay repeater mode is also supported, for forwarding the dhcp message of user to Dynamic Host Configuration Protocol server.Host is not distinguished
DHCPRelay and Server, it is believed that dhcp message requests object, that is, DHCP Server.
In the 3GPP network architecture, S2a interface, which is defined, is connected to EPC(such as Fig. 1 by the non-3 gpp IP access net of trust
Shown in 3).Currently, WLAN (Wireless Local Area Network, referred to as WLAN) can be used as trust
Non-3 GPP access network EPC network is connected to by S2a interface, and S2a interface can support PMIPv6 or general packet
Radio Service Tunneling Protocol (General Packet Radio Service Tunnelling Protocol, referred to as GTP)
Network-based mobility management protocol.Under S2a scene, non-3 gpp IP accesses net as Dynamic Host Configuration Protocol server, and user equipment can be with
Pass through DHCPv4/v6(IPv4DHCP agreement and IPv6DHCP agreement) message to DHCPv4/v6 server (be herein non-3 gpp
IP accesses net, for example, WLAN trusty access net (Trusted WLAN Access Network, referred to as TWAN)) request
ANDSF address information etc..3GPP points out that IP parameter must be from PGW(LMA) it obtains, when non-3 gpp IP trusty accesses net conduct
When Dynamic Host Configuration Protocol server, since current PMIPv6 and GTP signaling does not support transmitting ANDSF information, non-3 gpp IP trusty is connect
Network (for example, TWAN), can not as Dynamic Host Configuration Protocol server to user equipment offer ANDSF information (for example, IP address and/or
Fully qualified domain name (Fully Qualified Domain Name, referred to as FQDN), also referred to as full name domain name).
Aiming at the problem that how non-3 GPP access network trusty in the related technology obtains ANDSF information from EPC, at present still
It does not put forward effective solutions.
Summary of the invention
Aiming at the problem that how non-3 GPP access network trusty in the related technology obtains ANDSF information from EPC, the present invention
The acquisition methods and device of a kind of ADNSF information are provided, at least to solve the above problems.
According to an aspect of the invention, there is provided a kind of acquisition methods of ANDSF information, comprising: trusty non-
3GPP accesses information of the net to PGW request ANDSF；The non-3 GPP access network trusty is received from the PGW's
Response message, wherein the information of the ANDSF is carried in the response message.
Preferably, non-3 GPP access network trusty to the information of PGW request ANDSF include: trusty non-
The information of PMIPv6 signaling or GTP signaling to PGW request ANDSF is crossed by 3GPP access Netcom.
Preferably, in non-3 GPP access network trusty by PMIPv6 signaling to the information of PGW request ANDSF
In the case of, non-3 GPP access network trusty includes: that the non-3 gpp trusty connects to the information of PGW request ANDSF
It networks and sends PBU message to PGW, wherein include the information element for being used to indicate the information of the ANDSF in the PBU message.
Preferably, the non-3 GPP access network trusty receives the response message from the PGW, wherein the sound
Answering the information that the ANDSF is carried in message includes: that the non-3 GPP access network trusty is received from the PGW
PBA message, wherein include the information element for being used to indicate the information of the ANDSF in the PBA message.
Preferably, non-3 GPP access network trusty by information from GTP signaling to PGW request ANDSF feelings
Under condition, non-3 GPP access network trusty to the information of PGW request ANDSF include: the non-3 GPP access trusty
Net to PGW transmission establishes conversation request message or modification bearing request message, wherein it is described establish conversation request message or
It include the information element for being used to indicate the information of the ANDSF in modification bearing request message.
Preferably, the non-3 GPP access network trusty receives the response message from the PGW, wherein the sound
Answering the information that the ANDSF is carried in message includes: that the non-3 GPP access network trusty receives building from the PGW
Vertical conversational response message or modification bearing response message, wherein described to establish conversational response message or modification carrying response
It include the information element for being used to indicate the information of the ANDSF in message.
Preferably, the information element of the information for being used to indicate the ANDSF includes: to be exclusively used in indicating the ANDSF
Information information element；Alternatively, being included in additional protocol config option information element.
Preferably, the information of the ANDSF includes at least one of: the IP address of the ANDSF, the ANDSF's
FQDN。
Preferably, the non-3 GPP access network trusty is TWAN.
Preferably, in non-3 GPP access network trusty to before the information of PGW request ANDSF, further includes: credible
The non-3 GPP access network appointed receives DHCPv6 message/DHCPv4 message from UE.
According to another aspect of the present invention, a kind of acquisition device of ANDSF information is additionally provided, is located at trusty non-
In 3GPP access net, comprising: module is obtained, for the information to PGW request ANDSF；First receiving module, for receiving
Response message from the PGW, wherein the information of the ANDSF is carried in the response message.
Preferably, in non-3 GPP access network trusty by PMIPv6 signaling to the information of PGW request ANDSF
In the case of, the acquisition module includes: the first transmission unit, for sending PBU message to PGW, wherein in the PBU message
Information element comprising being used to indicate the information of the ANDSF.
Preferably, non-3 GPP access network trusty by information from GTP signaling to PGW request ANDSF feelings
Under condition, the acquisition module includes: the second transmission unit, for establishing conversation request message or modification carrying to PGW transmission
Request message, wherein described to establish in conversation request message or modification bearing request message comprising being used to indicate the ANDSF
Information information element.
Preferably, described device further include: the second receiving module, for receive the DHCPv6 message from UE/
DHCPv4 message.
Through the invention, using non-3 GPP access network trusty to grouped data network gateway request ANDSF's
Information；Non-3 GPP access network trusty receives the response message from PGW, wherein carries in the response message above-mentioned
The mode of the information of ANDSF, solve in the related technology non-3 GPP access network trusty how from EPC obtain ANDSF information
The problem of, compared to ANDSF information is stored in the above-mentioned non-3 GPP access network trusty as Dynamic Host Configuration Protocol server in advance
The information of mode, the ANDSF got from PGW is more accurate, and acquisition modes are more flexible reliable.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the configuration diagram according to the 3GPP EPC of the relevant technologies；
Fig. 2 is to pass through the configuration diagram that S14 interface is connected with UE according to the ANDSF of the relevant technologies；
Fig. 3 is the schematic diagram according to the 3GPP of the relevant technologies based on the PMIPv6 network architecture and corresponding interface；
Fig. 4 is the flow chart of the acquisition methods of ANDSF information according to an embodiment of the present invention；
Fig. 5 is the structural block diagram of the acquisition device of ANDSF information according to an embodiment of the present invention；
Fig. 6 is the preferred structure block diagram according to an embodiment of the present invention for obtaining module；
Fig. 7 is the preferred structure block diagram of the acquisition device of ANDSF information according to an embodiment of the present invention；
Fig. 8 is that according to embodiments of the present invention one UE is initially attached to the stream of EPC by the non-3GPP access network trusted
Cheng Tu；
Fig. 9 be according to embodiments of the present invention two UE have been coupled to the non-3GPP access network of trust after, UE initiate
The flow chart of DHCP process request ANDSF parameter.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
The acquisition methods of a kind of access network discovery and selection function (ANDSF) information are present embodiments provided, Fig. 4 is basis
The flow chart of the acquisition methods of the ANDSF information of the embodiment of the present invention, as shown in figure 4, this method comprises the following steps:
Step S402, non-3 GPP access network (for example, TWAN) trusty are obtained to grouped data network gateway (PGW) request
Take the information of ANDSF；
Step S404, non-3 GPP access network trusty receive the response message from PGW, wherein in the response message
Carry the information of above-mentioned ANDSF.
The present embodiment through the above steps, information from non-3 GPP access network trusty to PGW request ANDSF, and
The information that ANDSF is got by receiving the response message that PGW is sent, realizes non-3 GPP access network trusty and obtains from EPC
The information for getting ANDSF, solves how non-3 GPP access network trusty in the related technology from EPC obtains ANDSF information
Problem, compared to the side being in advance stored in ANDSF information in the above-mentioned non-3 GPP access network trusty as Dynamic Host Configuration Protocol server
The information of formula, the ANDSF got from PGW is more accurate, and acquisition modes are more flexible reliable.
Preferably, the information of above-mentioned ANDSF may include but be not limited at least one of: IP address, FQDN, or
Other identifier.
Non-3 GPP access network trusty can be believed by PMIPv6 signaling or GTP as a preferred implementation manner,
Enable the information to PGW request ANDSF.In this way, the flexibility of scheme is improved.
Non-3 GPP access network trusty by above-mentioned signaling to PGW request ANDSF information in the case where, can be with
ANDSF information is obtained by using the mode of the information element for being used to indicate ANDSF information in above-mentioned signaling.
For example, non-3 gpp trusty connects by PMIPv6 signaling to PGW request ANDSF information
PBU message can be sent to PGW by networking, and include the information element for being used to indicate the information of ANDSF in the PBU message.
In this case, non-3 GPP access network trusty, which can receive, corresponds to above-mentioned PBU message from PGW
PBA message may include the information element for being used to indicate the information of ANDSF in the PBA message.
For another example by GTP signaling to PGW request ANDSF information, non-3 GPP access trusty
Net can to PGW send establish conversation request message perhaps modify bearing request message this establish conversation request message or
It include the information element for being used to indicate the information of ANDSF in modification bearing request message.
In this case, non-3 GPP access network trusty can receive from PGW establish conversational response message or
Person modifies bearing response message, may include and is used to indicate in establishing conversational response message or modification bearing response message
The information element of the information of ANDSF.
Preferably, the information element of the above-mentioned information for being used to indicate ANDSF can be the information for being exclusively used in instruction ANDSF
Information element；Alternatively, also may be embodied in additional protocol config option Additional PCO information element.
Preferably, non-3 GPP access network trusty can receive DHCPv6 message/DHCPv4 message from UE
In the case where, ANDSF information is obtained to PGW.Certainly, non-3 GPP access network trusty voluntarily can also obtain ANDSF to PGW
Information
Corresponding to the above method, a kind of acquisition device of ANDSF information is additionally provided in the present embodiment, is located at trusted
Non-3 GPP access network in, which had carried out explanation no longer for realizing above-described embodiment and preferred embodiment
It repeats.As used below, the combination of the software and/or hardware of predetermined function may be implemented in term " module ".Although following
Device described in embodiment is preferably realized with software, but the combined realization of hardware or software and hardware is also
It may and be contemplated.
Fig. 5 is the structural block diagram of the acquisition device of ANDSF information according to an embodiment of the present invention, as shown in figure 5, the device
Include: to obtain module 52 and the first receiving module 54, above-mentioned modules are described in detail below.
Module 52 is obtained, for the information to PGW request ANDSF；First receiving module 54, with acquisition 52 phase of module
Even, for receiving the response message from PGW, wherein carry the information of above-mentioned ANDSF in the response message.
The present embodiment is by above-mentioned module, and acquisition module 52 in non-3 GPP access network trusty is to PGW request
The information of ANDSF, and the information that the response message that PGW is sent gets ANDSF is received by the first receiving module 54, it realizes
Non-3 GPP access network trusty gets the information of ANDSF from EPC, solves non-3 GPP access trusty in the related technology
The problem of how net obtains ANDSF information from EPC, it is above-mentioned as Dynamic Host Configuration Protocol server compared in advance ANDSF information is stored in
The information of mode in non-3 GPP access network trusty, the ANDSF got from PGW is more accurate, and acquisition modes are cleverer
It is living reliable.
Fig. 6 is the preferred structure block diagram according to an embodiment of the present invention for obtaining module 52, as shown in fig. 6, trusty
Non-3 GPP access network by information from PMIPv6 signaling to PGW request ANDSF in the case where, obtain module 52 can wrap
It includes: the first transmission unit 522, for sending agent binding update messages PBU message to PGW, wherein include in the PBU message
It is used to indicate the information element of the information of ANDSF；Pass through GTP signaling to PGW request in non-3 GPP access network trusty
In the case where the information of ANDSF, obtaining module 52 also may include: the second transmission unit 524, establish meeting for sending to PGW
Talk about request message or modification bearing request message, wherein this is established in conversation request message or modification bearing request message
Information element comprising being used to indicate the information of ANDSF.
Fig. 7 is the preferred structure block diagram of the acquisition device of ANDSF information according to an embodiment of the present invention, as shown in fig. 7, should
Device can also include: the second receiving module 72, with obtain module 52 be connected, for receive the DHCPv6 message from UE/
DHCPv4 message.
It is illustrated below with reference to preferred embodiment, preferred embodiment below combines above-described embodiment and its preferred implementation
Mode.
In preferred embodiment below, a kind of method and system for obtaining ANDSF information is provided, to solve in 3GPP base
Under the scene of S2a interface, the non-3 gpp IP access net (for example, the WLAN access system (TWAN) trusted) of trust is used as DHCP
The problem of address ANDSF or mark (for example, IP address or FQDN) can not be provided when server for user equipment.
The non-3 gpp IP access net of trust can obtain the address ANDSF or mark by following signaling method:
One: S2a PMIPv6 of mode.
Non-3 gpp IP access net (for example, TWAN) of trust sends PBU message to P-GW, includes ANDSF in PBU message
The information element of information, to request the IP address and/or FQDN of ADNSF；P-GW includes in the PBA message for responding corresponding PBU
The IP address of ANDSF and/or the information element of FQDN are sent to non-3 gpp IP access net (for example, TWAN) of trust.
Two: S2a GTP of mode.
Non-3 gpp IP access net (for example, TWAN) of trust is established conversation request message/modification carrying to P-GW transmission and is asked
It asks, includes the information element of ANDSF information in the message, to request the IP address and/or FQDN of ADNSF；P-GW is establishing meeting
The information element for talking about the IP address and/or FQDN in response message/modification bearing response message comprising ANDSF, is sent to trust
Non-3 gpp IP access net (for example, TWAN).
Preferably, the information element for the ANDSF information for including in above-mentioned GTP PMIPv6 signaling can be special needle
Existing additional protocol config option also may be embodied in the ANDSF information element defined or ANDSF information
In (Additional PCO) information element.
Embodiment one
In the present embodiment, carried out for when describing non-3 GPP access network/TWAN that UE first pass is trusted and being connected to EPC
Illustrate, UE initiates DHCP process, request IP configuration to the non-3 GPP access network/TWAN for the trust for supporting DHCP Server function
The IP address of parameter and ANDSF, non-3 GPP access network/TWAN of trust is in the mistake with P-GW interaction PMIPv6 GTP signaling
Cheng Zhong obtains the IP address of ANDSF.
Fig. 8 be according to embodiments of the present invention one UE by trust non-3GPP access network (for example, trust WLAN connect
Enter network) it is initially attached to the flow chart of EPC, as shown in figure 8, the process may comprise steps of:
The distinctive process of non-3 gpp is executed between step S802:UE and the non-3 GPP access network (for example, TWAN) of trust.
Step S804:UE completes EAP authentication process.In the process, non-3 GPP access network trusty can carry out UE
The association of MAC Address and IMSI.
Step S806:UE sends Solicit(DHCPv6 message to non-3 GPP access network trusty)/DHCP
Discover(DHCPv4 message), the option comprising request ANDSF IP address in the message, APN information, request distribution IP
Location etc..
Step S808: non-3 GPP access network/TWAN trusty receives Solicit(DHCPv6 message)/DHCP
Discover(DHCPv4 message) after, it is sent to PDN GW and creates session request or agent binding update messages, in the message
The information element comprising ANDSF information that the present invention defines is carried, which can be the letter defined specifically for ANDSF
Element is ceased, is also possible in additional protocol config option (Additional PCO) information element.
The operation of IP-CAN session establishment is executed between step S810:PDN GW and PCRF.
Step S812:PDN GW updates the address PDN GW by AAA Server, to HSS.
Step S814:PDN GW sends creation conversational response to non-3 GPP access network trusty/TWAN or agency ties up
Determine confirmation message, in the message, ANDSF IP address is included in corresponding information element by PDN GW, the information element
It can be the information element defined specifically for ANDSF, be also possible at additional protocol config option (Additional PCO)
Information element.
Step S816-S818: non-3 GPP access network/TWAN of trust replys Advertise(DHCPv6 to UE)/
DHCPOffer(DHCPv4), the IP address of ANDSF is issued, IP address and/or other configurations parameter etc. are distributed；UE is to trusted
Non-3 GPP access network send DHCPv6request/DHCP request(DHCPv4) message.
It should be noted that step S816-S818 is dispensed in quick DHCP process.
Step S820: non-3 GPP access network/TWAN of trust replys Reply(DHCPv6 message to UE)/DHCPAck
(DHCPv4 message) issues the IP address of ANDSF, distributes IP address and/or other configurations parameter etc..
Embodiment two
It in the present embodiment, is illustrated so that UE is established by TWAN to EPC after packet data connection as an example, UE is to support
The TWAN of DHCP Server function initiates DHCP(v4/v6) IP address of process request ANDSF and/or other configurations parameter etc..
Fig. 9 be according to embodiments of the present invention two UE have been coupled to trust non-3GPP access network (for example, trust
WLAN accesses network) after, UE initiates the flow chart of DHCP process request ANDSF parameter, as shown in figure 9, the process may include
Following steps:
Step S902:UE sends Solicit(DHCPv6 message to non-3 GPP access network trusty)/DHCP
Discover(DHCPv4 message), it may include the option of request ANDSF IP address, dns server address option in the message
Etc. other parameters.
Step S904:TWAN receives Solicit(DHCPv6 message)/DHCP Discover(DHCPv4 message) after, to
PDN GW, which is sent, modifies carrying request or agent binding update messages, and that the carrying present invention defines in the message includes ANDSF
The information element of information, the information element can be the information element defined specifically for ANDSF, be also possible in additional protocol
In config option (Additional PCO) information element.
Step S906:PDN GW sends modification carrying response or proxy binding acknowledgment messages to TWAN, within the message,
ANDSF IP address is included in corresponding information element by PDN GW, which can be defines specifically for ANDSF
Information element, be also possible in additional protocol config option (Additional PCO) information element.
Step S908-S910:TWAN replys Advertise(DHCPv6 to UE)/DHCP Offer(DHCPv4), issue
The IP address of ANDSF；UE sends DHCPv6request/DHCP request(DHCPv4 to non-3 GPP access network trusty)
Message.
It should be noted that step S908-S910 is dispensed in quick DHCP process.
Step S912:TWAN replys Reply(DHCPv6 message to UE)/DHCP Ack(DHCPv4 message), issue ANDSF
IP address dns server address parameter etc..
In another embodiment, a kind of software is additionally provided, the software is for executing above-described embodiment and preferred reality
Apply technical solution described in example.
In another embodiment, a kind of storage medium is additionally provided, above-mentioned software is stored in the storage medium, it should
Storage medium includes but is not limited to CD, floppy disk, hard disk, scratch pad memory etc..
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein
Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (19)
1. the acquisition methods of a kind of access network discovery and selection function ANDSF information characterized by comprising
Non- third generation partner program non-3GPP trusty accesses net to grouped data network gateway PGW request
The information of ANDSF；
The non-3 GPP access network trusty receives the response message from the PGW, wherein carries in the response message
There is the information of the ANDSF；
Wherein, non-3 GPP access network trusty to the information of PGW request ANDSF include: non-3 GPP access trusty
Netcom crosses proxy mobile IPv 6 agreement PMIPv6 signaling or general packet wireless service tunnel protocol GTP signaling and requests to PGW
Obtain the information of ANDSF；
In the case where non-3 GPP access network trusty passes through information of the GTP signaling to PGW request ANDSF, trusted
Non-3 GPP access network to include: the non-3 GPP access network trusty to the information of PGW request ANDSF send to PGW
Establish conversation request message or modification bearing request message, wherein it is described establish conversation request message or modification carrying ask
Seek the information element in message comprising being used to indicate the information of the ANDSF.
2. the method according to claim 1, wherein passing through PMIPv6 signaling in non-3 GPP access network trusty
To PGW request ANDSF information in the case where, information of the non-3 GPP access network trusty to PGW request ANDSF
Include:
The non-3 GPP access network trusty sends agent binding update messages PBU message to PGW, wherein the PBU message
In comprising be used to indicate the ANDSF information information element.
3. according to the method described in claim 2, it is characterized in that, the non-3 GPP access network trusty is received from described
The response message of PGW, wherein the information that the ANDSF is carried in the response message includes:
The non-3 GPP access network trusty receives the proxy binding acknowledgment messages PBA message from the PGW, wherein institute
State the information element in PBA message comprising being used to indicate the information of the ANDSF.
4. the method according to claim 1, wherein the non-3 GPP access network trusty is received from described
The response message of PGW, wherein the information that the ANDSF is carried in the response message includes:
The non-3 GPP access network trusty, which is received, establishes conversational response message or modification carrying response from the PGW
Message, wherein described to establish conversational response message or modify the letter in bearing response message comprising being used to indicate the ANDSF
The information element of breath.
5. according to the method described in claim 2, it is characterized in that, the information word of the information for being used to indicate the ANDSF
Element includes:
It is exclusively used in indicating the information element of the information of the ANDSF；Alternatively,
Included in additional protocol config option Additional PCO information element.
6. according to the method described in claim 3, it is characterized in that, the information word of the information for being used to indicate the ANDSF
Element includes:
It is exclusively used in indicating the information element of the information of the ANDSF；Alternatively,
Included in additional protocol config option Additional PCO information element.
7. the method according to claim 1, wherein the information word of the information for being used to indicate the ANDSF
Element includes:
It is exclusively used in indicating the information element of the information of the ANDSF；Alternatively,
Included in additional protocol config option Additional PCO information element.
8. according to the method described in claim 4, it is characterized in that, the information word of the information for being used to indicate the ANDSF
Element includes:
It is exclusively used in indicating the information element of the information of the ANDSF；Alternatively,
Included in additional protocol config option Additional PCO information element.
9. method according to any one of claim 1 to 8, which is characterized in that the information of the ANDSF includes below extremely
It is one of few:
The IP address of the ANDSF, the fully qualified domain name FQDN of the ANDSF.
10. method according to any one of claim 1 to 8, which is characterized in that the non-3 GPP access network trusty
Net TWAN is accessed for WLAN trusty.
11. according to the method described in claim 9, it is characterized in that, the non-3 GPP access network trusty is trusty
WLAN access net TWAN.
12. method according to any one of claim 1 to 8, which is characterized in that non-3 GPP access network trusty to
Before the information of PGW request ANDSF, further includes:
Non-3 GPP access network trusty receive the dynamic host configuration protocol DHCP v6 message from user equipment (UE)/
DHCPv4 message.
13. according to the method described in claim 9, it is characterized in that, in non-3 GPP access network trusty to PGW request
Before the information of ANDSF, further includes:
Non-3 GPP access network trusty receive the dynamic host configuration protocol DHCP v6 message from user equipment (UE)/
DHCPv4 message.
14. according to the method described in claim 10, it is characterized in that, being obtained in non-3 GPP access network trusty to PGW request
Before taking the information of ANDSF, further includes:
Non-3 GPP access network trusty receive the dynamic host configuration protocol DHCP v6 message from user equipment (UE)/
DHCPv4 message.
15. according to the method for claim 11, which is characterized in that obtained in non-3 GPP access network trusty to PGW request
Before taking the information of ANDSF, further includes:
Non-3 GPP access network trusty receive the dynamic host configuration protocol DHCP v6 message from user equipment (UE)/
DHCPv4 message.
16. according to the method for claim 12, which is characterized in that obtained in non-3 GPP access network trusty to PGW request
Before taking the information of ANDSF, further includes:
Non-3 GPP access network trusty receive the dynamic host configuration protocol DHCP v6 message from user equipment (UE)/
DHCPv4 message.
17. the acquisition device of a kind of access network discovery and selection function ANDSF information is located at non-third generation cooperation partner trusty
With in plan non-3GPP access net characterized by comprising
Module is obtained, for the information to grouped data network gateway PGW request ANDSF；
First receiving module, for receiving the response message from the PGW, wherein carried in the response message described
The information of ANDSF；
Wherein, the acquisition module is also used to execute: by proxy mobile IPv 6 agreement PMIPv6 signaling or general packet without
Information of the line service tunnel protocol GTP signaling to PGW request ANDSF；
It is described to obtain in the case where non-3 GPP access network trusty passes through information of the GTP signaling to PGW request ANDSF
Modulus block includes: the second transmission unit, for establishing conversation request message or modification bearing request message to PGW transmission,
In, it is described to establish conversation request message or modify the letter in bearing request message comprising being used to indicate the information of the ANDSF
Cease element.
18. device according to claim 17, which is characterized in that believed in non-3 GPP access network trusty by PMIPv6
In the case where enabling the information to PGW request ANDSF, the acquisition module includes:
First transmission unit, for sending agent binding update messages PBU message to PGW, wherein include in the PBU message
It is used to indicate the information element of the information of the ANDSF.
19. device described in any one of 7 to 18 according to claim 1, which is characterized in that described device further include:
Second receiving module, for receiving dynamic host configuration protocol DHCP v6 message/DHCPv4 message from UE.
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| CN105722168B (en) * | 2014-12-02 | 2020-04-28 | 中兴通讯股份有限公司 | Method for acquiring PGW FQDN, Home PGW and system |
| US10425887B2 (en) * | 2015-11-10 | 2019-09-24 | Blackberry Limited | Gateway selection controlled by network |
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