CN103313243A - Method and system supporting accessing of wireless local area network - Google Patents

Method and system supporting accessing of wireless local area network Download PDF

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Publication number
CN103313243A
CN103313243A CN2012100571066A CN201210057106A CN103313243A CN 103313243 A CN103313243 A CN 103313243A CN 2012100571066 A CN2012100571066 A CN 2012100571066A CN 201210057106 A CN201210057106 A CN 201210057106A CN 103313243 A CN103313243 A CN 103313243A
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China
Prior art keywords
local area
wireless local
area network
wlan
via node
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Granted
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CN2012100571066A
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CN103313243B (en
Inventor
梁爽
朱春晖
陈淑
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ZTE Corp
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ZTE Corp
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Priority to CN201210057106.6A priority Critical patent/CN103313243B/en
Priority to PCT/CN2013/071727 priority patent/WO2013131427A1/en
Publication of CN103313243A publication Critical patent/CN103313243A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/0892—Network architectures or network communication protocols for network security for authentication of entities by using authentication-authorization-accounting [AAA] servers or protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Abstract

The invention provides a method supporting accessing of a wireless local area network. The method comprises the following steps: a relay node of a wireless local area network is accessed to a network through a base station; wireless local area network connection between an access controller and user equipment is established through the relay node of the wireless local area network; the access controller interacts with an authentication authorization charging server to complete authentication of the user equipment; and after receiving an address request of the user equipment, the access controller selects a core network gateway, acquires an IP address assigned by the core network gateway for the user equipment and sends the IP address to the user equipment. The invention further provides a system supporting accessing of the wireless local area network.

Description

A kind of method and system of supporting the WLAN (wireless local area network) access
Technical field
The present invention relates to moving communicating field, be specifically related to the method and system of a kind of support WLAN (Wireless Local Area Network, WLAN (wireless local area network)) access.
Background technology
In order to keep 3-G (Generation Three mobile communication system) in the competitiveness of the communications field, for the user provides that speed is faster, time delay is lower, Extraordinary Mobile Communication Service more, simultaneously, reduce the operation cost of operator, 3GPP (3rd Generation Partnership Project, third generation partner program) the standard operation group just is being devoted to the evolved packet system research of (Evolved Packet System is called for short EPS).
Whole EPS system as shown in Figure 1, mainly comprise E-UTRAN (Evolved Universal Terrestrial Radio Access Network, the universal terrestrial access network of evolution) and EPC (Evolved Packet Core, the packet-based core networks of evolution) two parts.The EPC of this system can support the user from GERAN (GSM EDGE radio access network, GSM EDGE wireless access network) and the access of UTRAN (Universal Terrestrial Radio Access Network, universal land radio access web).
In the EPC packet-based core networks, comprised HSS (Home Subscriber Server, the home subscriber data server), MME (Mobility Management Entity, mobility management unit), S-GW (Serving Gateway, gateway), PGW (PDN Gateway, grouped data network gateway), SGSN (Serving GPRS Support Node, Serving GPRS Support Node) and PCRF (Policy and Charging Enforcement Function, strategy and charging regulation function entity), wherein:
HSS is the permanent storage place of user contracting data, is positioned at the home network that the user contracts;
MME be user contracting data at the storage place of current network, be responsible for NAS layer (Non-Access Stratum, the Non-Access Stratum) signaling management of terminal to network, tracking and paging management function and the bearer management under user's idle pulley;
S-GW is the gateway that core net arrives wireless system, is responsible for terminal to the user plane bearer of core net, the data buffer storage under the terminal idle pulley, the function of network side initiating business request, legal eavesdropping and packet routing and forwarding capability;
PGW is the grouping domain system (EPS) of evolution and the gateway of this system's external network, the functions such as the IP address assignment of responsible terminal, billing function, grouping packet filtering, application of policies.
SGSN is the business support point that GERAN and UTRAN user access the EPC network, and is similar with MME on the function, is responsible for user's the functions such as position renewal, paging management and bearer management.
PCRF is responsible for providing policy control and charging regulation to PCEF.
In above-mentioned framework, although EUTRAN can provide access bandwidth at a high speed, because EUTRAN belongs to emerging access technology, support in the market that the terminal quantity of EUTRAN is considerably less.And the mass data that a large amount of intelligent terminals bring is professional, also can't obtain to satisfy from supporting the UTRAN/GERAN access.This present situation causes a large amount of LTE networks of disposing of operator to bring very large income for it.
Yet the most intelligent terminals in the existing market can both be crossed support WLAN access, and the free WLAN technology of frequency range also can provide the very high transmission rate of eating dishes without rice or wine.If can be for the WLAN terminal provides access in the EUTRAN system of LTE, operator just can add the LTE network by attracting a large amount of WLAN terminals so, thereby accelerates the capital input repayment.The scene schematic diagram that operator wishes to support the WLAN access by LTE as shown in Figure 2.
Yet the logical architecture of existing network can not be realized this demand of operator.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method and system of the WLAN of support access, realizes WLAN terminal access LTE system.
In order to address the above problem, the invention provides a kind of method of supporting the WLAN (wireless local area network) access, comprising:
The WLAN (wireless local area network) via node is by the base station access network network; Access controller is set up WLAN (wireless local area network) by described WLAN (wireless local area network) via node with subscriber equipment and is connected;
Described access controller and authentication and authorization charging server are mutual, finish the authentication process to described subscriber equipment;
After described access controller receives the Address requests of described subscriber equipment, select the core net gateway, obtaining described core gateway is the IP address of described user equipment allocation, and described IP address is sent to described subscriber equipment.
Further, said method also can have following characteristics, and described method also comprises:
Described authentication and authorization charging server and home location server are mutual, finish the registration of described subscriber equipment, and obtain the CAMEL-Subscription-Information of described subscriber equipment.
Further, said method also can have following characteristics, and described WLAN (wireless local area network) via node comprises by the base station access network network:
Described WLAN (wireless local area network) via node obtains configuration information as the ordinary terminal access network;
Described WLAN (wireless local area network) via node is set up data as the ordinary terminal access network and is connected.
Further, said method also can have following characteristics, and described method also comprises, sets up in the data connection procedure as the ordinary terminal access network at described WLAN (wireless local area network) via node:
Mobile management unit is the gateway that described WLAN (wireless local area network) trunk node selection is positioned at described base station; Perhaps, described mobile management unit is described WLAN (wireless local area network) trunk node selection gateway according to type and/or the subscription data of described WLAN (wireless local area network) via node.
Further, said method also can have following characteristics, and described access controller is positioned at described base station.
Further, said method also can have following characteristics, and described method also comprises,
Described base station is received from after the described WLAN (wireless local area network) via node message, is sent to its inner access controller according to type of message; Perhaps, be transmitted to mobile management unit or core net gateway or the authentication and authorization charging server of described WLAN (wireless local area network) via node.
Further, said method also can have following characteristics, and described access controller is positioned at described WLAN (wireless local area network) via node.
Further, said method also can have following characteristics, described method also comprises, after described base station receives message from described WLAN (wireless local area network) via node, be transmitted to mobile management unit or core net gateway or the authentication and authorization charging server of described WLAN (wireless local area network) via node according to type of message.
Further, said method also can have following characteristics, described access controller is stand-alone network elements, links to each other with described authentication and authorization charging server with described base station, described core net gateway, and described access controller is mutual by described base station and described WLAN (wireless local area network) via node.
Further, said method also can have following characteristics, described method also comprises, described base station is transmitted to the mobile management unit of described WLAN (wireless local area network) via node or the access controller of core net gateway or authentication and authorization charging server or described subscriber equipment according to type of message after receiving message from described WLAN (wireless local area network) via node.
The present invention also provides a kind of system that supports the WLAN (wireless local area network) access, comprising: WLAN (wireless local area network) via node, base station and access controller, wherein:
Described WLAN (wireless local area network) via node is used for: by described base station access network network;
Described access controller is used for: set up WLAN (wireless local area network) by described WLAN (wireless local area network) via node with subscriber equipment and be connected; And, mutual with authentication and authorization charging server, finish the authentication process to described subscriber equipment; And, receive the Address requests of described subscriber equipment after, select the core net gateway, the IP address that to obtain described core net gateway be described user equipment allocation sends to described subscriber equipment with described IP address.
Further, said system also can have following characteristics, and described WLAN (wireless local area network) via node comprises by described base station access network network: described WLAN (wireless local area network) via node obtains configuration information as the ordinary terminal access network; And, set up data as the ordinary terminal access network and connect.
Further, said system also can have following characteristics, and described access controller is positioned at described base station.
Further, said system also can have following characteristics,
Described base station also is used for: receive from after the described WLAN (wireless local area network) via node message, send to its inner access controller according to type of message; Perhaps, be transmitted to mobile management unit or core net gateway or the authentication and authorization charging server of described WLAN (wireless local area network) via node.
Further, said system also can have following characteristics, and described access controller is positioned at described WLAN (wireless local area network) via node.
Further, said system also can have following characteristics,
Described base station also is used for, receive the message from described WLAN (wireless local area network) via node after, be transmitted to mobile management unit or core net gateway or the authentication and authorization charging server of described WLAN (wireless local area network) via node according to type of message.
Further, said system also can have following characteristics,
Described access controller is stand-alone network elements, links to each other with described authentication and authorization charging server with described base station, described core net gateway, and described access controller is mutual by described base station and described WLAN (wireless local area network) via node.
Further, said system also can have following characteristics,
Described base station also is used for, after receiving the message from described WLAN (wireless local area network) via node, be transmitted to the mobile management unit of described WLAN (wireless local area network) via node or the access controller of core net gateway or authentication and authorization charging server or described subscriber equipment according to type of message.
Description of drawings
Fig. 1 is the structural representation of evolution grouping domain system;
Fig. 2 is the application scenarios that the operator that disposed LTE wishes to attract WLAN user;
Fig. 3 utilizes the present invention, realizes the framework one of operator's demand;
Fig. 4 utilizes the present invention, realizes the framework two of operator's demand;
Fig. 5 utilizes the present invention, realizes the framework three of operator's demand;
Fig. 6 utilizes the present invention, and WRN realizes the flow chart of network insertion;
Fig. 7 is based on framework one of the present invention, realizes the flow chart of WLAN access network;
Fig. 8 is based on framework two of the present invention, realizes the flow chart of WLAN access network;
Fig. 9 is based on framework three of the present invention, realizes the flow chart of WLAN access network.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawing embodiments of the invention are elaborated.Need to prove, in the situation that do not conflict, the embodiment among the application and the feature among the embodiment be combination in any mutually.
ENB in following three frameworks can be for ordinary base station or also can be base station from home, but the function that provides all is similarly, therefore describes all take eNB as example.
In addition, this framework is equally applicable to WLAN and is linked into 3G network, namely with the backhaul of 3G network as WLAN.This moment is in the framework of the present embodiment, MME can be understood as SGSN, PGW can be understood as GGSN (Gateway GPRS Support Node, Gateway GPRS Support Node), eNB can be understood as RNC (Radio Network Controller, radio network controller) or NB (Node B, Node B).If eNB is interpreted as RNC, then RNC is integrated the GW of WRN (gateway), and can connect NB or HNB, and the message that this moment, WRN was dealt into RNC need to be routed to RNC by NB or HNB.
Fig. 3 utilizes the present invention, realizes the framework one of WLAN access.
In this framework, comprise following network element: HSS, MME, AAA server (Authentication Authorization and Account server, authentication and authorization charging server), PGW, eNB (eNodeB, the Node B of enhancing), WRN (WLAN Relay Node, the WLAN (wireless local area network) via node), the WLAN terminal, wherein:
WRN provides the access of eating dishes without rice or wine of WLAN for the WLAN terminal, WLAN AP (Access Point, access point) function namely is provided, and for the EPS network, is linked into eNB as ordinary terminal.
ENB, except technology (for WRN provides access) related in the prior art is provided, also integrated WRN is as the GW function of ordinary terminal access, comprise the IP address assignment of being responsible for WRN, billing function, grouping packet filtering, application of policies, with the functions such as the configuration management network element of WRN links to each other.
In addition, in this framework, eNB may be also integrated for supporting AC (the Access Controller of WLAN terminal, access controller) function, this function comprises the control to AP, for the WLAN terminal provides different qos policys, realize the authentication of WLAN terminal, realize that the filtration of packet is transmitted.
MME except technology (for WRN provides access) related in the prior art is provided, also needs WRN is carried out special authentication and/or authentication, can not be pretended to be to guarantee WRN.
HSS is except providing technology (be WRN, the WLAN terminal is preserved signatory relevant data, authentication vector etc.) related in the prior art.Also may need WRN is preserved special signatory, perhaps carry out the process of special authentication, to guarantee providing professional by specific WRN as the WLAN terminal.
AAA server is for the WLAN terminal provides the authentication function.
PGW, for the WLAN terminal provides the user bearer path, packet routing and forwarding capability, Lawful Interception, the functions such as the IP address assignment of terminal, billing function, grouping packet filtering, application of policies.This network element may be independent PGW, also may be to close the PGW that establishes with SGW.For the latter, two network elements be logic independently, also can divide to be arranged, divide situation about being arranged for two network elements, can come to connect for WLAN user sets up PDN with GTP or PMIP agreement between two network elements, this flow process be prior art, does not further give unnecessary details in the present invention.
In this framework, when WRN accesses as ordinary terminal, its signaling paths be WRN＜--〉eNB＜--〉MME＜--HSS, its user's face (data) path be WRN＜--eNB.WLAN terminal when access, its authentication signaling paths be WLANUE＜--〉WRN＜--〉eNB＜--〉AAA server＜--HSS, its user's face set up and data path be WLAN UE＜--〉WRN＜--〉eNB＜--PGW.
Fig. 4 utilizes the present invention, realizes the framework two of operator's demand.
The basic thought of this framework and framework one are similar, and main difference is the position of AC, and the logic function of AC is positioned at WRN.
In this framework, when WRN accessed as ordinary terminal, its signaling paths was identical with framework one with user's face (data) path.WLAN terminal when access, its authentication signaling paths with and user's face is set up and data path is also similar with framework one, but certain difference is arranged.This moment is different as function and framework one that the eNB of one of path node provides.In framework one, because the integrated function of AC among the eNB, so eNB receives the related data packets of WLAN, all needs wherein integrated AC to process.And in framework two, eNB does not need the content of message is carried out concrete processing, but only according to protocol type or the information such as destination address or port numbers of packet, determines to send to AAA server, perhaps PGW, perhaps MME.
Fig. 5 utilizes the present invention, realizes the framework three of operator's demand.
The basic thought of this framework and framework one are similar, and main difference is the position of AC, AC as one independently logical block be positioned at the rear end of eNB.
In this framework, when WRN accessed as ordinary terminal, its signaling paths was identical with framework one with user's face (data) path.WLAN terminal when access, its authentication signaling paths be WLANUE＜--〉WRN＜--〉eNB＜--〉AC＜--〉AAA server＜--HSS, its user's face set up and data path be WLAN UE＜--〉WRN＜--〉eNB＜--〉AC＜--PGW.At this moment, the function of eNB and framework two are similar, namely do not need the content of message is carried out concrete processing, but only according to protocol type or the information such as destination address or port numbers of packet, decision sends to AAA server, perhaps PGW, perhaps, MME, perhaps, AC.
The embodiment of the invention provides a kind of method of supporting the WLAN (wireless local area network) access, comprising:
The WLAN (wireless local area network) via node is by the base station access network network; Access controller is set up WLAN (wireless local area network) by described WLAN (wireless local area network) via node with subscriber equipment and is connected;
Described access controller and authentication and authorization charging server are mutual, finish the authentication process to described subscriber equipment;
After described access controller receives the Address requests of described subscriber equipment, select the core net gateway, obtaining described core gateway is the IP address of described user equipment allocation, and described IP address is sent to described subscriber equipment.
Wherein, described method also comprises:
Described authentication and authorization charging server and home location server are mutual, finish the registration of described subscriber equipment, and obtain the CAMEL-Subscription-Information of described subscriber equipment.
Wherein, described WLAN (wireless local area network) via node comprises by the base station access network network:
Described WLAN (wireless local area network) via node obtains configuration information as the ordinary terminal access network;
Described WLAN (wireless local area network) via node is set up data as the ordinary terminal access network and is connected.
Wherein, described method also comprises, sets up in the data connection procedure as the ordinary terminal access network at described WLAN (wireless local area network) via node:
Mobile management unit is the gateway that described WLAN (wireless local area network) trunk node selection is positioned at described base station; Perhaps, described mobile management unit is described WLAN (wireless local area network) trunk node selection gateway according to type and/or the subscription data of described WLAN (wireless local area network) via node.
In the embodiment of the invention, it is from the message of WRN as ordinary terminal that message need to be distinguished in the base station, or the message relevant with WLAN UE, processes accordingly.Wherein, for the message of WLAN UE, if when AC is integrated in the base station, need to sends to inner integrated AC and process; When AC is stand-alone network elements, need to sends to AC and process.
Wherein, when described access controller was positioned at described base station, described base station was received from after the described WLAN (wireless local area network) via node message, is sent to its inner access controller according to type of message; Perhaps, be transmitted to mobile management unit or core net gateway or the authentication and authorization charging server of described WLAN (wireless local area network) via node.
Wherein, when described access controller is positioned at described WLAN (wireless local area network) via node, after described base station receives message from described WLAN (wireless local area network) via node, be transmitted to mobile management unit or core net gateway or the authentication and authorization charging server of described WLAN (wireless local area network) via node according to type of message.
Wherein, described access controller is stand-alone network elements, links to each other with described authentication and authorization charging server with described base station, described core net gateway, and described access controller is mutual by described base station and described WLAN (wireless local area network) via node.At this moment, described base station is transmitted to the mobile management unit of described WLAN (wireless local area network) via node or the access controller of core net gateway or authentication and authorization charging server or described subscriber equipment according to type of message after receiving message from described WLAN (wireless local area network) via node.
ENB among following embodiment Fig. 6～Fig. 9 can be ordinary base station, perhaps HeNB (base station from home).But flow process and message all are similar, and the function of finishing is also similar, among the following embodiment, describe as an example of eNB example.
In addition, this several flow charts and framework also are applicable to the situation that WLAN UE is linked into 3G network.In the 3G network situation, MME can be understood as SGSN, and PGW/GW can be understood as GGSN, and eNB can be understood as RNC or NB.HSS also can be HLR.If eNB is interpreted as RNC, then RNC the is integrated GW of WRN, and can connect NB or HNB, the message that this moment, WRN was dealt into RNC need to be routed to RNC by NB or HNB.
Fig. 6 utilizes the present invention, and WRN realizes the flow chart of network insertion.
Step 600, WRN in this access procedure, can select to support eNB and/or the MME of WRN function as common UE access network, also can select not support eNB and the MME of WRN function, because this process has nothing different from the access procedure of ordinary terminal.But connecting, the PDN that sets up in this course needs to be connected in the operation and managed network element of WRN, to guarantee that WRN can obtain correct configuration information from it.This configuration information comprises but is not limited to: the eNB tabulation that WRN can access, whether the band information of WRN access allows to provide WLAN access indication etc.WRN stores above-mentioned configuration information, and carries out local attachment removal flow process.
If WRN this locality has configured above-mentioned information, execution in step 600.
Step 601 according to the information of obtaining in the step 600, is selected suitable eNB access, and the eNB of WRN function is supported in access again.
If comprise the eNB tabulation that can access in the configuration information, then WRN may be according to the resident eNB of this Information Selection;
If do not comprise the eNB tabulation that can access in the configuration information, and allow WRN to provide the WLAN access (can pass through the indication in the configuration information, perhaps do not giving tacit consent to support in the indication), then whether WRN may support the WRN function to select resident eNB by eNB in this step, and whether eNB supports the WRN function, can indicate by the enhancing broadcast of eating dishes without rice or wine.
In order to select to support the MME of WRN, WRN also needs to indicate eNB, and whether it is WRN, is used for being different from ordinary terminal, eNB and then select the MME of support WRN function for WRN.And whether MME supports the WRN function, can the eNB starting up, perhaps notify to eNB in the MME config update process.
Step 602, if there is not user's contextual information in the network, perhaps Attach Request message does not have integrity protection, perhaps integrity protection failure, MME carries out the authentication process to the user so.
Step 603 if there is not user's subscription data among the MME, so just sends to HSS and upgrades location request message, comprising information such as mobility management unit sign, user ID, updating types.HSS sends to MME to user contracting data in upgrading the position response message, comprising the indication of WRN, whether allow WRN access indication.
Step 604, after checking was passed through, MME was integrated in GW on the eNB for its selection.
Step 605, MME sets up request message by initial context will send to the base station for carrying and the qos parameter thereof that WRN sets up, and adhere to accept message and also be encapsulated in this message and issue the user.Adhere to and accept to carry in the message casual user's sign that MME distributes to WRN, and set up bearer context request for WRN.
Step 606, eNB sets up corresponding empty port load-supporting according to the beared information of core net indication.
Step 607, successfully set up empty port load-supporting after, eNB replys initial context to MME and sets up response message.
Step 608, WRN returns registration by eNB to MME and finishes message.
In this embodiment Fig. 6, if there is not the GW of integrated WRN on the eNB, namely the base station module in the base station and GW module are physical entities independently, and then MME can select mechanism by existing GW, for WRN selects suitable GW, and connect by the PDN that existing mechanism is established to GW.
In following embodiment Fig. 7～Fig. 9, terminal connects and can obtain by DHCP request triggering AC, also can trigger by route request information, and subsequent descriptions is take dhcp message as example.If route request information triggers, then AC returns advertising of route message.
In addition, in following embodiment Fig. 7～Fig. 9, if the base station of implementing among Fig. 6 separate with GW, the message between so following WRN and the base station, all be WRN＜--〉base station＜--GW.
Fig. 7 is based on framework one of the present invention, realizes the flow chart of WLAN access network.
Step 700, UE and WRN, eNB finish the connection flow process of WLAN, comprise the discovery of wlan network in this process, with being connected between the AC.These processes and existing WLAN access is similar, and the message that different is between AP and the AC is that the radio bearer that WRN sets up is delivered by among embodiment Fig. 6.After eNB receives above-mentioned message, give inner integrated AC with it and process.
The message relevant with UE that all need to deliver to eNB according to following processing: WRN of following all message of between WRN and eNB, delivering in like manner, eNB need to judge that this message is that UE is relevant or WRN is relevant, if UE is correlated with and transfers to inner AC and process; And the message relevant with UE that eNB delivers to WRN, WRN need to judge this message be relevant with UE or with only be correlated with oneself, thereby judge whether that delivery is to UE.This mode repeats no more in following step.
The EAP identifying procedure after the UE access, if eNB supports EAP (Extensible Authentication Protocol, extended authentication agreement) authentication, can be triggered to UE in step 701～705.Wherein, UE carries the sign of UE to eNB in EAP-RSP/Identity message.AC among the eNB sends to AAA server with the sign of UE.
Step 706, selectable AAA server may trigger the sign of again obtaining UE.
Step 707～708, AAA server obtains authentication vector to HSS.
Step 709～711, AAA server and eNB (AC) and the EAP flow process of UE according to standard finish the authentication process to UE.
Step 712, AAA server and HSS are mutual, finish the registration of UE, and obtain the subscription data of UE.
Step 713, UE finishes the config update with AC.
Step 714～715, UE initiates dhcp process, obtains the address and set up PDN to connect.UE can obtain IPv4 or IPv6 address decision initiation DHCPv4 or DHCPv6 process according to hope.This request is issued eNB via WRN.The APN information that may comprise the desired access of UE in this message.
Step 716, eNB is that UE selects PGW.And to its transmission PDN connection foundation request.If this interface uses PMIP message, then this message is the Binding Update request message of PMIP.If this interface uses GTP message, then this message is for creating conversation request message.The effect of this message is to connect for UE sets up PDN, does not limit to protocol type.
If UE has carried APN information, then eNB (AC) is that UE selects PGW according to APN information.If UE does not carry, AC comes to select a PGW for UE according to this locality configuration or according to the information of obtaining from AAA.These information can be PGW addresses, or APN information, and AC selects PGW according to the mode that these APN information exchanges are crossed DNS.AC can obtain this information in the AAA of step 711 (EAP-Success) message.
PGW may close with SGW and establish, and perhaps the two sets up separately, sees the explanation of embodiment Fig. 3.
Step 717, optional, PGW is after UE connects, with APN and oneself address notification to HSS;
Step 718, PGW sends the PDN connection establishment response to eNB.If this interface uses PMIP message, then this message is the Binding Update response of PMIP.If this interface uses GTP message, then this message is for creating conversational response message.The effect of this message is that notice is finished PDN connection foundation, does not limit to protocol type.Wherein carry the QoS that distributes into UE, and the IP address.
Step 719～720, eNB sends dhcp response message, the IP address of wherein carrying UE by WRN to UE.
Fig. 8 is based on framework two of the present invention, realizes the flow chart of WLAN access network.
This flow process and Fig. 7 are similar, but because framework is different, some difference are arranged also.Difference is:
Because AC is positioned at WRN, the authentication that therefore AC initiates among the former cause eNB, the encapsulation of EAP message and AAA message, the dhcp message termination, carrying is set up to trigger and all is positioned at WRN, but not eNB.
In addition, described in framework two, eNB does not need the content of message is carried out concrete processing, but only according to protocol type or the information such as destination address or port numbers of packet, determine to send to AAA server, perhaps PGW, perhaps MME, other repeat no more.
Fig. 9 is based on framework three of the present invention, realizes the flow chart of WLAN access network.
This flow process and Fig. 7 are similar, but because framework is different, some difference are arranged also.Difference is:
Because the AC conduct is network element deployment independently, the authentication that therefore AC initiates among the former cause eNB, the encapsulation of EAP message and AAA message, the dhcp message termination, carrying foundation triggers and all is positioned at this AC, but not is positioned at eNB.
In addition, described in framework three, eNB does not need the content of message is carried out concrete processing, according to type of message message is sent to AAA server, and MME or PGW perhaps, send to AC.Other repeat no more.Type of message can comprise protocol type or destination address or the port number information of packet.
The embodiment of the invention also provides a kind of system that supports the WLAN (wireless local area network) access, comprising: WLAN (wireless local area network) via node, base station and access controller, wherein:
Described WLAN (wireless local area network) via node is used for: by described base station access network network;
Described access controller is used for: set up WLAN (wireless local area network) by described WLAN (wireless local area network) via node with subscriber equipment and be connected; And, mutual with authentication and authorization charging server, finish the authentication process to described subscriber equipment; And, receive the Address requests of described subscriber equipment after, select the core net gateway, the IP address that to obtain described core net gateway be described user equipment allocation sends to described subscriber equipment with described IP address.
Wherein, described WLAN (wireless local area network) via node comprises by described base station access network network: described WLAN (wireless local area network) via node obtains configuration information as the ordinary terminal access network; And, set up data as the ordinary terminal access network and connect.
Wherein, described access controller is positioned at described base station.Described base station also is used for: receive from after the described WLAN (wireless local area network) via node message, send to its inner access controller according to type of message; Perhaps, be transmitted to mobile management unit or core net gateway or the authentication and authorization charging server of described WLAN (wireless local area network) via node.
Wherein, described access controller is positioned at described WLAN (wireless local area network) via node.Described base station also is used for, receive the message from described WLAN (wireless local area network) via node after, be transmitted to mobile management unit or core net gateway or the authentication and authorization charging server of described WLAN (wireless local area network) via node according to type of message.
Wherein, described access controller is stand-alone network elements, links to each other with described authentication and authorization charging server with described base station, described core net gateway, and described access controller is mutual by described base station and described WLAN (wireless local area network) via node.Described base station also is used for, after receiving the message from described WLAN (wireless local area network) via node, be transmitted to the mobile management unit of described WLAN (wireless local area network) via node or the access controller of core net gateway or authentication and authorization charging server or described subscriber equipment according to type of message.
One of ordinary skill in the art will appreciate that all or part of step in the said method can come the instruction related hardware to finish by program, described program can be stored in the computer-readable recording medium, such as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.

Claims (18)

1. a method of supporting the WLAN (wireless local area network) access is characterized in that, comprising:
The WLAN (wireless local area network) via node is by the base station access network network; Access controller is set up WLAN (wireless local area network) by described WLAN (wireless local area network) via node with subscriber equipment and is connected;
Described access controller and authentication and authorization charging server are mutual, finish the authentication process to described subscriber equipment;
After described access controller receives the Address requests of described subscriber equipment, select the core net gateway, obtaining described core gateway is the IP address of described user equipment allocation, and described IP address is sent to described subscriber equipment.
2. the method for claim 1 is characterized in that, described method also comprises:
Described authentication and authorization charging server and home location server are mutual, finish the registration of described subscriber equipment, and obtain the CAMEL-Subscription-Information of described subscriber equipment.
3. the method for claim 1 is characterized in that, described WLAN (wireless local area network) via node comprises by the base station access network network:
Described WLAN (wireless local area network) via node obtains configuration information as the ordinary terminal access network;
Described WLAN (wireless local area network) via node is set up data as the ordinary terminal access network and is connected.
4. method as claimed in claim 3 is characterized in that, described method also comprises, sets up in the data connection procedure as the ordinary terminal access network at described WLAN (wireless local area network) via node:
Mobile management unit is the gateway that described WLAN (wireless local area network) trunk node selection is positioned at described base station; Perhaps, described mobile management unit is described WLAN (wireless local area network) trunk node selection gateway according to type and/or the subscription data of described WLAN (wireless local area network) via node.
5. such as the arbitrary described method of claim 1 to 4, it is characterized in that, described access controller is positioned at described base station.
6. method as claimed in claim 5 is characterized in that, described method also comprises,
Described base station is received from after the described WLAN (wireless local area network) via node message, is sent to its inner access controller according to type of message; Perhaps, be transmitted to mobile management unit or core net gateway or the authentication and authorization charging server of described WLAN (wireless local area network) via node.
7. such as the arbitrary described method of claim 1 to 4, it is characterized in that, described access controller is positioned at described WLAN (wireless local area network) via node.
8. method as claimed in claim 7, it is characterized in that, described method also comprises, after described base station receives message from described WLAN (wireless local area network) via node, be transmitted to mobile management unit or core net gateway or the authentication and authorization charging server of described WLAN (wireless local area network) via node according to type of message.
9. such as the arbitrary described method of claim 1 to 4, it is characterized in that, described access controller is stand-alone network elements, links to each other with described authentication and authorization charging server with described base station, described core net gateway, and described access controller is mutual by described base station and described WLAN (wireless local area network) via node.
10. method as claimed in claim 9, it is characterized in that, described method also comprises, described base station is transmitted to the mobile management unit of described WLAN (wireless local area network) via node or the access controller of core net gateway or authentication and authorization charging server or described subscriber equipment according to type of message after receiving message from described WLAN (wireless local area network) via node.
11. a system that supports the WLAN (wireless local area network) access is characterized in that, comprising: WLAN (wireless local area network) via node, base station and access controller, wherein:
Described WLAN (wireless local area network) via node is used for: by described base station access network network;
Described access controller is used for: set up WLAN (wireless local area network) by described WLAN (wireless local area network) via node with subscriber equipment and be connected; And, mutual with authentication and authorization charging server, finish the authentication process to described subscriber equipment; And, receive the Address requests of described subscriber equipment after, select the core net gateway, the IP address that to obtain described core net gateway be described user equipment allocation sends to described subscriber equipment with described IP address.
12. system as claimed in claim 11 is characterized in that, described WLAN (wireless local area network) via node comprises by described base station access network network: described WLAN (wireless local area network) via node obtains configuration information as the ordinary terminal access network; And, set up data as the ordinary terminal access network and connect.
13. such as claim 11 or 12 described systems, it is characterized in that, described access controller is positioned at described base station.
14. system as claimed in claim 13 is characterized in that,
Described base station also is used for: receive from after the described WLAN (wireless local area network) via node message, send to its inner access controller according to type of message; Perhaps, be transmitted to mobile management unit or core net gateway or the authentication and authorization charging server of described WLAN (wireless local area network) via node.
15. such as claim 11 or 12 described systems, it is characterized in that, described access controller is positioned at described WLAN (wireless local area network) via node.
16. system as claimed in claim 15, it is characterized in that, described base station also is used for, after receiving the message from described WLAN (wireless local area network) via node, be transmitted to mobile management unit or core net gateway or the authentication and authorization charging server of described WLAN (wireless local area network) via node according to type of message.
17. such as claim 11 or 12 described systems, it is characterized in that, described access controller is stand-alone network elements, links to each other with described authentication and authorization charging server with described base station, described core net gateway, and described access controller is mutual by described base station and described WLAN (wireless local area network) via node.
18. system as claimed in claim 17, it is characterized in that, described base station also is used for, after receiving the message from described WLAN (wireless local area network) via node, be transmitted to the mobile management unit of described WLAN (wireless local area network) via node or the access controller of core net gateway or authentication and authorization charging server or described subscriber equipment according to type of message.
CN201210057106.6A 2012-03-06 2012-03-06 A kind of method and system for supporting WLAN to access Expired - Fee Related CN103313243B (en)

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