CN102056141B - System and method for realizing local access - Google Patents

System and method for realizing local access Download PDF

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Publication number
CN102056141B
CN102056141B CN2009102368680A CN200910236868A CN102056141B CN 102056141 B CN102056141 B CN 102056141B CN 2009102368680 A CN2009102368680 A CN 2009102368680A CN 200910236868 A CN200910236868 A CN 200910236868A CN 102056141 B CN102056141 B CN 102056141B
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station system
local
base station
family base
local gateway
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CN102056141A (en
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游世林
蔡继燕
梁爽
周娜
宗在峰
王静
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2010/071233 priority patent/WO2010145241A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/12—Reselecting a serving backbone network switching or routing node
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16—Gateway arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/045—Interfaces between hierarchically different network devices between access point and backbone network device

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a system and method for realizing local access, which are used for solving the problem of gateway selection in the local access. The method comprises the following steps of: storing a mapping relation between a macro station system/a family base station system and a locate gateway corresponding to the macro station system/the family base station system into an added local access control server; updating the mapping relation through an A2 interface or an A3 interface; and obtaining an address of the local gateway from the local access control server and establishing the corresponding local access connection when user equipment establishes local access connection. In the invention, because the centralized management of the mapping relation between the macro station system/the family base station system and the corresponding locate gateway corresponding to the macro station system/the family base station system is realized, a corresponding updating mechanism is established and the correct gateway selection is facilitated when the local connection is established, the gateway selection problem in the local access is solved.

Description

A kind of system and method for realizing local access
Technical field
The present invention relates to moving communicating field, be specifically related to a kind of system and method for realizing local 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).Fig. 1 is the structural representation of existing packet domain (PS) and evolution packet domain (EPS) system and the schematic diagram of corresponding home network, and as shown in Figure 1, whole system is divided into wireless access network and core net two parts.In wireless access system, the PS system comprises base-station node (NodeB, be called for short NB) and radio network controller (Radio NetworkController, abbreviation RNC) two parts, corresponding family base station system comprises Home eNodeB node (HomeNodeB, be called for short HNB) and two parts of Home eNodeB node gateway (HNB Gateway is called for short HNB GW); EPS comprises base-station node (the evolved NodeB of evolution, be called for short eNB), corresponding family base station system comprises evolution Home eNodeB node (HeNB), also can there be evolution femto gateway (HeNB GW) in evolution family base station system for EPS, be used for the converging of HeNB reduced the signaling of core net is impacted.In core net, home subscriber server (Home Subscriber Server is referred to as HSS) belongs to PS system and EPS system.The PS system comprises Serving GPRS Support Node (ServingGPRS Support Node is referred to as SGSN) and GPRS gateway node (Gateway GPRSSupporting Node is called for short GGSN) in addition.The EPS system also comprises mobility management unit (MobilityManagement Entity, referred to as MME), support Serving GPRS Support Node (general designation is called SGSN), policy charging rule function (the Policy and Charging Rule Function of S4 interface, referred to as PCRF), gateway (Serving Gateway, referred to as S-GW) and packet data gateway (PDNGateway is referred to as P-GW).PS network and EPS network can be linked in Internet.Also there is Home eNodeB management system (HMS) in family base station system.Below detailed functions:
Base-station node and radio network controller are UTRAN (Universal Terrestrial RadioAccess Network, the universal land radio access web) radio reception devices of 3G, and HNB and HNB GW are corresponding Home eNodeB access devices.
The base-station node of evolution is E-UTRAN (Evolved UTRAN, the universal land radio access web of evolution) be the wireless access network of evolution, be follow-on wireless access network, higher up-downgoing speed can be provided, lower transmission delay and more reliable wireless transmission.HeNB or HeNB GW are corresponding Home eNodeB access devices.
Home subscriber server is the permanent storage place of user contracting data, is positioned at the home network that the user contracts.
Mobility management unit, be user contracting data at the storage place of current network, be responsible for the Non-Access Stratum signaling management of terminal to network, the safety verification function of terminal, mobile management, the tracking under user's idle pulley and paging management function and the bearer management of terminal.
Serving GPRS Support Node, it is the business support point of GERAN (GSM EDGE Radio Access Network) and UTRAN user access core network network, similar with mobility management unit on function, be responsible for user's the functions such as position renewal, paging management and bearer management.
Gateway 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, function, Lawful Interception and packet routing and the forwarding capability of network side initiating business request; Gateway is responsible for the situation that the counting user terminal is used wireless network, and produces the ticket that terminal is used wireless network, sends charging gateway to.
Packet data gateway, it is the gateway of evolution system and this system's external packet data network, it is connected on internet and packet data network, the functions such as Internet protocol (Internet Protocol is referred to as the IP) address assignment of responsible terminal, billing function, grouping packet filtering, policy control.
GPRS gateway node and packet data gateway function are approximate, it is connected on internet and packet data network, the functions such as Internet protocol (Internet Protocol is referred to as the IP) address assignment of responsible terminal, billing function, grouping packet filtering, policy control.
Policy charging rule functional entity is the server of being responsible for providing charging control, online credit control, thresholding control, service quality (Quality of Service is referred to as QoS) tactful aspect rule in evolution system.
Serving GPRS Support Node can support and gateway between the S4 interface, and and mobility management unit between adopt the GTPv2 agreement to carry out intercommunication.And it is different for the SGSN that supports the 3G core net.This moment, SGSN adopted gn interface to be connected with MME, and the GTPv1 agreement is adopted in intercommunication.SGSN can not be connected with gateway, is connected to Gateway GPRS Support Node (Gateway GPRSSupport Node is called for short GGSN) by gn interface and directly carries out the packet data network access.
Complete the automatic configuration of Home eNodeB by TR069 (subscriber terminal equipment wide area network management agreement) agreement between Home eNodeB management system (HMS) and Home eNodeB, be that Home eNodeB obtains configuration parameter from the Home eNodeB management system, complete the basic configuration of Home eNodeB, guarantee the normal operation of Home eNodeB.
Home eNodeB (Home NodeB, referred to as HNB) or the Home eNodeB (HomeeNodeN of evolution, be called for short HeNB) be that a class is small-sized, lower powered base station, dedicated resources as the certain user, being deployed in the private sites such as family, group, company or school uses, mainly in order higher service rate to be provided to the user and to reduce and use the needed expense of high rate services, making up simultaneously the deficiency that existing distributed cellular radio communication system covers.The advantage of Home eNodeB is economical, convenient, low-power output, plug and play, broadband access, only needs to use single-mode terminal etc.
Home eNodeB can be applied in 3G (3 Generation, the third generation) or LTE (Long TermEvolution, Long Term Evolution) mobile communications network.For the ease of Home eNodeB is managed, new network element, i.e. a femto gateway have been introduced in network.The function that femto gateway is mainly carried out is: the fail safe of checking Home eNodeB, maintenance management is carried out in the operation of Home eNodeB, and according to Carrier Requirements configuration and control Home eNodeB, be responsible for the data message of exchcange core net and Home eNodeB.The 3G Home eNodeB is connected to femto gateway by the Iuh interface of new definition, and femto gateway is provided to IuPS and the IuCs interface of core network packet-domain and circuit domain.The essential deployment of femto gateway is used for shielding the impact of introducing after Home eNodeB terminal and network side for 3G network.The optional deployment of femto gateway for the LTE network, so LTE Home eNodeB and core net be connected with dual mode, a kind of is that Home eNodeB directly is connected with core network element, another kind is that Home eNodeB is connected with core network element by gateway.Femto gateway can not integrated user plane functions, directly sets up user's face between Home eNodeB and core net user plane gateway, can make like this flattening of user's face, and data transmission delay reduces.
For convenience of description, we are referred to as family base station system with family base station system and the LTE family base station system of 3G, and the E-UTRAN of the UTRAN of 3G access and LTE is accessed the grand station system that is referred to as.Fig. 2 introduction be the system that existing network is realized local access.Be that family base station system and grand station system can also support local IP access function except supporting by the access of mobile core network.Relatively existing PS and EPS system dispose the functional entity that a local gateway realizes local access function or add a local gateway in the system/family base station system of grand station near near grand station system/family base station system and realize local access function.The relative PS of described local gateway system is similar to the partial function of the GGSN an of this locality, makes the user can directly be linked into from this locality home network, enterprise network or the Internet.And relative EPS system, local gateway is equivalent to the partial function of the packet data gateway an of this locality, or the partial function of local packet data gateway and local service gateway, can make equally the user directly be linked into home network, enterprise network or the Internet from this locality.Be equivalent to the effect of the SGSN of PS system for mobility management unit, be equivalent to the effect of the MME of EPS system, the core net gateway is equivalent to the effect of the GGSN of PS system, is equivalent to the S-GW of EPS system and the effect of P-GW.Other network elements HSS, HMS describe identical with existing 3G and LTE system.
For local access function, having is contracted by the user directly accesses the situation of home network or enterprise network or the Internet by local gateway at family base station system, also has by grand station system to be linked into the situation of the Internet or enterprise network by local gateway.Generally by the user at the signing local access function of HSS, carry out local access function by local gateway.But for grand station system, also can pass through carrier policy, such as the core network load ability determines that the roamer carries out local access function, in this case, the user is not perception.
Fig. 3 be prior art on the basis of Fig. 2 system, the initial access of user is carried out core net and is connected and set up process flow diagram.The present embodiment concrete steps are described below:
Step 301, the user needs to set up RRC (Radio Resource Control, Radio Resource is controlled) and connects the carrying as signaling message or business datum before communicating.
Step 302, the user sends initialization NAS (Non-Access-Stratum, Non-Access Stratum) message and carries out attach operation.
Step 303, grand station system/family base station system is issued mobility management unit with initial user message, and forwards NAS message to mobility management unit, carries base station mode information.
Step 304, mobility management unit is opened authentication and safe procedures, and the user is verified.
Step 305, mobility management unit request HSS carries out the position to be upgraded;
Step 306, HSS responds the position to mobility management unit and upgrades response, carries the relevant CAMEL-Subscription-Information of local access;
Step 307, mobility management unit sends the session establishment request to the core net gateway, carries out core net and connects foundation.
Step 308 receives the message that mobility management unit sends, and after the core net gateway establishes the core net connection, sends the session establishment response to mobility management unit.
Step 309, mobility management unit is initiated initial context to grand station system/family base station system and is set up request.
Step 310 is carried out RRC and is connected layoutprocedure.
Step 311, grand station system/family base station system is replied the mobility management unit initial context and is set up response.
Step 312, terminal sends direct-sending message to grand station system/family base station system, comprises and adheres to the information of completing.
Step 313, grand station system/family base station system send to adhere to mobility management unit completes message.
Step 314, mobility management unit is to core net gateway requests new bearer more.
Step 315, the core net gateway sends the bearer update response message to mobility management unit.
In process was set up in above-mentioned core net connection, Mobility Management Entity can pass through the Information Selection core net gateways such as APN (Access PointName, APN), simultaneously, and can be by the selection of the mechanism realizations such as network topology structure to the core net gateway.Connect when grand station system/family base station system in the situation of a plurality of local gateways and core net gateway, existing gateway selects mechanism can't select correct local gateway to carry out local access.Simultaneously because local access function can provide service for domestic consumer or enterprise customer, the therefore corresponding relative core net gateway of local gateway is smaller, also may be arranged in domestic consumer's family or enterprise, like this with regard to the management of inconvenient operator to its state.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of system and method for realizing local access, is used for solving the selection problem of local access gateway.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of system that realizes local access comprises mobile management unit, grand station system/family base station system, local gateway, also comprises:
Local accessing control server is used for preserving the mapping relations between grand station system/family base station system and its corresponding local gateway;
Interface between described local accessing control server and mobile management unit is the A1 interface, is used for when setting up local the connection mobile management unit and obtains the local gateway address from described local accessing control server;
Interface between the described local accessing control server local gateway corresponding with grand station system/family base station system is the A2 interface, when changing for the mapping relations between grand station system/family base station system local gateway corresponding with it, upgrade its mapping relations to local accessing control server request.
Further, described system also comprises the Home eNodeB management system; Interface between described local accessing control server and Home eNodeB management system is the A3 interface;
If described local gateway and described family base station system close when establishing, the interface between described local accessing control server and described Home eNodeB is also the A3 interface;
Described A3 interface is used for Home eNodeB by the Home eNodeB management system or directly sends to described local accessing control server the message of setting up or upgrading family base station system and local gateway mapping relations, asks described local accessing control server to set up or upgrade the mapping relations of family base station system and local gateway.
Further, described mapping relations are the mapping relations of setting up between the address information of the identify label of grand station system cell sign, Route Distinguisher, tracking sign, grand station system or grand station alliance identification information and local gateway; The mapping relations of perhaps setting up between the address information for the closed subscriber group identity of the positional information of family base station system, grand station system identification information that family base station system is corresponding, family base station system or family base station system IP address information and local gateway.
Further, the grand station system identification information of the correspondence of described family base station system is that described grand station system broadcasts is to grand station system cell sign, Route Distinguisher or the tracking identification information of family base station system.
further, subscriber equipment is adhering to, when setting up the PDN connection or setting up PDP Context, if described mobile management unit is signing according to the user or local access strategy judgement needs operator are set up local the connection, described mobile management unit by described A1 interface to local accessing control server request local gateway address, described local accessing control server finds corresponding local gateway address that it is fed back to described mobile management unit according to described grand station system/family base station system of preserving and mapping relations between local gateway, described mobile management unit is according to local connection of described local gateway address foundation that obtains.
Further, described local gateway address can be the address list of a local gateway, and described mobile management unit selects a local gateway address to be used for setting up local the connection from described address list.
Further, the change mapping relations of the increase, deletion or the newly-increased local gateway that comprise grand station system corresponding to local gateway and grand station system of the mapping relations between the local gateway that described grand station system/family base station system is corresponding with it; Or also comprise increase, deletion or the newly-increased local gateway of family base station system corresponding to local gateway or corresponding femto gateway and the mapping relations of family base station system or femto gateway.
Further, described A3 interface can adopt the TR069 agreement.
Based on said method, the present invention also proposes a kind of method that realizes local access, and described method is specially:
The newly-increased local accessing control server that is used for preserving the mapping relations between grand station system/family base station system and its corresponding local gateway; Subscriber equipment obtains the address of local gateway from described local accessing control server when setting up local access connection, and set up corresponding this locality access connection.
Further, notify described local accessing control server to upgrade after the mapping relations between the local gateway that described grand station system/family base station system is corresponding with it change or change corresponding mapping relations.
Further, described grand station system/family base station system upgrades grand station system/family base station system that described local accessing control server preserves and the mapping relations between its corresponding local gateway by A2 interface or A3 interface.
further, the step that subscriber equipment is set up local access connection is specially: subscriber equipment is adhering to, when setting up the PDN connection or setting up PDP Context, if described mobile management unit is signing according to the user or local access strategy judgement needs operator are set up local the connection, described mobile management unit by described A1 interface to local accessing control server request local gateway address, described local accessing control server finds corresponding local gateway address that it is fed back to described mobile management unit according to described grand station system/family base station system of preserving and mapping relations between local gateway, described mobile management unit is according to local connection of described local gateway address foundation that obtains.
Further, the change mapping relations of the increase, deletion or the newly-increased local gateway that comprise grand station system corresponding to local gateway and grand station system of the mapping relations between the local gateway that described grand station system/family base station system is corresponding with it; Or the mapping relations of the increase, deletion or the newly-increased local gateway that also comprise family base station system corresponding to local gateway or corresponding femto gateway and family base station system or corresponding femto gateway.
Further, described mapping relations are the mapping relations of setting up between the address information of the identify label of grand station system cell sign, Route Distinguisher, tracking sign, grand station system or grand station alliance identification information and local gateway; The mapping relations of perhaps setting up between the address information for the closed subscriber group identity of the positional information of family base station system, grand station system identification information that family base station system is corresponding, family base station system or family base station system IP address information and local gateway.
Further, the grand station system identification information of the correspondence of described family base station system is that described grand station system broadcasts is to grand station system cell sign, Route Distinguisher or the tracking identification information of family base station system.
The present invention is kept at the mapping relations between grand station system/family base station system and its corresponding local gateway in newly-increased local accessing control server, and upgrade described mapping relations by A2 interface or A3 interface, subscriber equipment obtains the address of local gateway from described local accessing control server when setting up local access connection, and set up corresponding this locality access connection.Because the present invention has realized centralized management to the mapping relations between grand station system/family base station system and its corresponding local gateway, and set up corresponding update mechanism, therefore be convenient to connect in this locality and carry out correct gateway selection when setting up, thereby solved gateway selection problem in local access.
Description of drawings
Fig. 1 is the structural representation of existing packet domain (PS) and evolution packet domain (EPS) system and the schematic diagram of corresponding home network;
Fig. 2 is the existing network architecture schematic diagram of realizing local access;
Fig. 3 is that prior art carries out based on initial access of the network structure user of Fig. 2 the flow chart that core net connects the process of setting up;
Fig. 4 is the network architecture diagram schematic diagram that the present invention realizes local access;
Fig. 5 is the flow chart that A2 Interface realization of the present invention upgrades local gateway and family base station system/grand station system map relation;
Fig. 6 is the flow chart that A3 Interface realization of the present invention upgrades local gateway and family base station system mapping relations;
Fig. 7 is in the attaching process of A1 interface of the present invention, and mobile management unit is selected the execution mode of local gateway;
Fig. 8 is that the PDN connection of A1 interface of the present invention is set up in process, and mobile management unit is selected the execution mode of local gateway;
Fig. 9 is in the pdp context activation of A1 interface of the present invention, and mobile management unit is selected the execution mode of local gateway.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
The invention provides a kind of system that realizes local access, as shown in Figure 4.System with respect to the local access of realization of Fig. 2 of prior art has increased a local accessing control server.Described local accessing control server is used for preserving grand station system and its corresponding local gateway mapping relations and/or family base station system and its corresponding local gateway mapping relations.Described mapping relations refer to by grand station system cell sign or Route Distinguisher or follow the tracks of sign or the address information of the identify label of grand station system or grand station alliance identification information and local gateway between the mapping relations set up; Or the mapping relations of setting up between the address information by the closed subscriber group identity of the positional information of family base station system or grand station system identification information corresponding to family base station system or family base station system or family base station system IP address information and local gateway.The address information of described local gateway can be the IP address of local gateway.The grand station system identification information that described family base station system is corresponding is that grand station system broadcasts is to grand station system cell sign or Route Distinguisher or the tracking identification information of family base station system.
The interface of described local accessing control server and mobile management unit is the A1 interface, and mobile management unit is to local accessing control server acquisition local gateway address when setting up local the connection to be used for the user, and the A1 interface is based on existing diameter agreement.described user is when adhering to or set up the PDN connection or set up PDP Context, when local access strategy judgement needs signing according to the user when mobile management unit or operator are set up local the connection, mobile management unit by described A1 interface to local accessing control server request local gateway address, the address that local accessing control server finds local gateway according to grand station system/family base station system of preserving and local gateway mapping relations, provide the local gateway address to mobile management unit, mobile management unit is according to local connection of local gateway address foundation that obtains.Described local gateway address can be also the address list of a local gateway, if list, mobile management unit selects one of them local gateway to set up local the connection.
Interface between local gateway corresponding to the local gateway that described local accessing control server is corresponding with grand station system or Home eNodeB is the A2 interface, and the A2 interface is based on existing diameter agreement.Described A2 interface is used for upgrading its mapping relations to local accessing control server request when system/family base station system local gateway mapping relations corresponding with it in grand station change.Described mapping relations change increase, deletion or the newly-increased local gateway of the grand station system that comprises local gateway and the mapping relations of grand station system perhaps also comprise the mapping relations of increase, deletion or newly-increased local gateway and the family base station system of the corresponding family base station system of local gateway.The family base station system that described local gateway is corresponding also can refer to the corresponding relation between local gateway and femto gateway, namely close when establishing when local gateway and Home eNodeB, adopt A3 interface described below to upgrade the mapping relations of family base station system and local gateway.
Between described local accessing control server and Home eNodeB management system, interface is the A3 interface, perhaps and the interface between Home eNodeB be also the A3 interface.Described A3 interface adopts existing TR069 agreement.When family's base station system and corresponding local gateway close when establishing and family base station system when powering on, Home eNodeB passes through HMS or directly sends to local accessing control server the message of setting up or upgrading family base station system and local gateway mapping relations, and the mapping relations of correspondence are set up or upgraded to local accessing control server.
It is identical with the prior art Network Element Function that other of system of the present invention are not described network element.
The present invention also provides a kind of method that realizes local access, and is as extremely shown in Figure 9 in Fig. 5.The basic thought of this method is: in time notify local accessing control server when grand station system/family base station system local gateway corresponding with it changes.Set up local access when connecting when service needed occurs the user, to grand station system corresponding to local accessing control server request user or the local gateway of family base station system.
Fig. 5 is the flow chart that A2 Interface realization of the present invention upgrades local gateway and family base station system/grand station system map relation, and detailed process is described below:
Step 501, the mapping relations of local gateway and family base station system/grand station system change.Described mapping relations change the grand station system that comprises local gateway increase, deletion or newly-increased local gateway and grand station system mapping relations or also comprise the mapping relations of increase, deletion or newly-increased local gateway and the family base station system of the corresponding family base station system of local gateway.The corresponding family base station system of described local gateway also can refer to the corresponding relation between the gateway of local gateway and Home eNodeB.
Step 502, family base station system/grand station system/local gateway sends local gateway Notification of Changes message to local accessing control server, and described message is carried local gateway and family base station system/grand station system map relation.
Described mapping relations refer to by grand station system cell sign or Route Distinguisher or follow the tracks of sign or mapping relations that the address information of the identify label of grand station system or grand station alliance identification information and local gateway is set up; Or the mapping relations of being set up by the address information of the closed subscriber group identity of the positional information of family base station system or grand station system identification information corresponding to family base station system or family base station system or family base station system IP address information and local gateway.The address information of described local gateway can be the IP address of local gateway.The grand station system identification information that described family base station system is corresponding refers to grand station system broadcasts to grand station system cell sign or the Route Distinguisher of family base station system or follows the tracks of identification information.
Described local gateway and the family base station system/grand station system map relation of carrying can also be the information that local gateway and family base station system/grand station system map relation change.The description that described change information changes as mapping relations as described in step 501.
Step 503, after local accessing control server is received described message, the mapping relations table of the information updating of carrying according to this message or change local gateway and family base station system/grand station system is to family base station system/grand station system/local gateway loopback local gateway Notification of Changes acknowledgement message.
If there is not the A2 interface in the local accessing control server local gateway corresponding with family base station system, namely family base station system and local gateway close when establishing, and adopt following A 3 Interface realizations to upgrade local gateway and family base station system mapping relations.
Fig. 6 is the flow chart that A3 Interface realization of the present invention upgrades local gateway and family base station system mapping relations, and detailed process is described below:
The start that powers on of step 601, Home eNodeB.
Step 602, family base station system/local gateway sends the TR069 configuration request message to HMS, and described message is carried relevant local gateway parameter and the relevant parameter of Home eNodeB.
Step S602, if family base station system/local gateway and local accessing control server are direct-connected, family base station system/local gateway sends TR069 local gateway notification message to local accessing control server, and described message is carried local gateway and family base station system mapping relations.
Step 603 after HMS receives step 602 message, is set up and is carried local gateway and family base station system mapping relations parameter according to described message and send local gateway Notification of Changes message to local accessing control server.
The mapping relations table of local gateway and family base station system is upgraded or changed to step 604 after local accessing control server is received described message, according to above-mentioned entrained information,, to HMS loopback local gateway Notification of Changes acknowledgement message.
Step 605, to family base station system/local gateway loopback TR069 configuration response message, described message is carried the configuration parameter of family base station system to HMS.
Step S605, the local accessing control server of corresponding step S602 is to family base station system/local gateway loopback TR069 local gateway notice acknowledgement message.
Fig. 7 is in the attaching process of A1 interface of the present invention, and mobile management unit is selected the execution mode of local gateway.Detailed process is described below:
Step 701 when the user starts shooting, is initiated attaching process and is registered in core net, namely sends Attach Request message by grand station system/family base station system to mobile management unit;
In this step, non-access layer information (being Attach Request message) is encapsulated in by the base station in the initialization user message of S1 interface and brings mobile management unit, wherein, whether grand station system/family base station system also can support the ability of local access to inform core net.
Step 702, after mobile management unit is received above-mentioned Attach Request message, if the contextual information of this UE not in discovering network, perhaps this Attach Request message does not have integrity protection, perhaps this Attach Request message integrity protection failure, mobile management unit is carried out the authentication process to this UE;
Step 703 step 704, when UE above-mentioned adhere to request in request set up locally-attached information, perhaps the PCO (protocol configuration option) that provides of UE and/or APN are through encrypting, and mobile management unit obtains PCO and/or APN information by the base station to UE;
Step 705, if the CAMEL-Subscription-Information of this UE not in mobile management unit sends to home subscriber server and upgrades location request message, request obtains the CAMEL-Subscription-Information of this UE;
Whether step 706, mobile management unit contract according to UE, and this locality is accessed or carrier policy determines whether that this UE sets up local connection, if so, enters step 707, supposes in this flow process that it need to be that UE sets up local connection that mobile management unit judges.
Step 707, mobile management unit sends the local gateway inquiry request message to local accessing control server, and described message is carried grand station system/family base station system parameter.System/the family base station system parameter can be residential quarter, Route Area or the tracking area identification of grand station system/family base station system at described grand station, it can be also grand station system/family base station system sign, can be also grand station system/family base station system positional information, can be even the closed subscriber group identity of Home eNodeB for family base station system.
Step 708, after local accessing control server is received message, according to carrying grand station system/family base station system parameter query after corresponding local gateway, return to local gateway query requests response message to mobile management unit, described message is carried the local gateway address.Described local gateway address can be also the address list of a local gateway, if list, mobile management unit selects one of them local gateway to set up follow-up this locality connection.
Step 709～step 710, mobile management unit send to local gateway and create the carrying request, wherein carry the termination point of a tunnel sign information such as (Tunnel Endpoint Identifier, TEID) of identification information and the chain of command of UE; Local gateway creates the carrying response to the mobile management unit feedback after receiving and creating the carrying request.
Step 711, mobile management unit sends initial context to grand station system/family base station system and sets up request, comprises in this request to send to adhering to of UE to accept message.
Step 712～step 713 is carried out RRC between grand station system/family base station system and UE and is connected foundation;
In this process, grand station system/family base station system is accepted message by the RRC request of setting up with adhering to of mobile management unit transmission and is sent to UE.
Step 714, grand station system/family base station system receives above-mentioned initial context and sets up request, returns to initial context to mobile management unit and sets up response;
Step 715～step 716, UE returns to adhere to mobile management unit by grand station system/family base station system and completes message;
Fig. 8 is that the PDN connection of A1 interface of the present invention is set up in process, and mobile management unit is selected the execution mode of IAD.Detailed process is described below:
Step 801, UE initiates PDN by grand station system/family base station system to mobile management unit and connects the request of foundation, carries UE in request and wishes the APN link information set up;
In this step, non-access layer information (be PDN connect set up request) is encapsulated in by grand station system/family base station system in the initialization user message of S1 interface and brings mobile management unit, and whether grand station system/family base station system can also support the ability of local access to inform core net.
Step 802, mobile management unit is received above-mentioned PDN connection request, according to UE whether signing local access or carrier policy determine whether that this UE sets up local the connection, if, enter step 803, in this flow process, the judgement of hypothesis mobile management unit need to be set up local the connection for UE.
Step 803, mobile management unit sends the local gateway inquiry request message to local accessing control server, and described message is carried grand station system/family base station system parameter.System/the family base station system parameter can be residential quarter, Route Area or the tracking area identification of grand station system/family base station system at described grand station, it can be also grand station system/family base station system sign, can be also grand station system/family base station system positional information, can be even the closed subscriber group identity of Home eNodeB for family base station system.
Step 804, after local accessing control server is received message, according to carrying grand station system/family base station system parameter query after corresponding local gateway, return to local gateway query requests response message to mobile management unit, described message is carried the local gateway address.Described local gateway address can be also the address list of a local gateway, if list, mobile management unit selects one of them local gateway to set up follow-up this locality connection.
Step 805～step 806, mobile management unit sends to local gateway carrying request, the information such as TEID of wherein carrying identification information and the chain of command of UE of creating; Local gateway creates the carrying response to the mobile management unit feedback after receiving and creating the carrying request.
Step 807, mobile management unit send initial context and set up request to the base station, comprise the default bearing activation request that sends to UE in this request.
Step 808～step 809 is carried out RRC between grand station system/family base station system and UE and is connected foundation;
In this process, the base station sends to UE by the RRC request of setting up with the default bearing request of setting up.
Step 810, grand station system/family base station system returns to initial context to mobile management unit and sets up response;
Step 811～step 812, UE returns to default bearing to mobile management unit and sets up response;
Fig. 9 is in the pdp context activation of A1 interface of the present invention, and mobile management unit is selected the execution mode of local gateway.Detailed process is described below:
Step 901, terminal are initiated the PDP activation request, carry UE in request and wish the APN link information set up;
In this step, non-access layer information (PDP activation request) brings mobile management unit via grand station system/family base station system, and whether the base station can also will support the ability of local access to inform core net.
Whether step 902, mobile management unit contract according to UE, and this locality is accessed or carrier policy determines whether that this UE sets up local connection, if so, enters step 903, supposes in this flow process that it need to be that UE sets up local connection that mobile management unit judges;
Step 903, mobile management unit sends the local gateway inquiry request message to local accessing control server, and described message is carried grand station system/family base station system parameter.System/the family base station system parameter can be residential quarter, Route Area or the tracking area identification of grand station system/family base station system at described grand station, it can be also grand station system/family base station system sign, can be also grand station system/family base station system positional information, can be even the closed subscriber group identity of Home eNodeB for family base station system.
Step 904, after local accessing control server is received message, according to carrying grand station system/family base station system parameter query after corresponding local gateway, return to local gateway query requests response message to mobile management unit, described message is carried the local gateway address.Described local gateway address can be also the address list of a local gateway, if list, mobile management unit selects one of them local gateway to set up follow-up this locality connection.
Step 905～step 906, mobile management unit sends to local gateway the request of carrying request/PDP Context, the information such as TEID of wherein carrying identification information and the chain of command of UE of creating; Local gateway creates the response of carrying response/PDP Context to the mobile management unit feedback after receiving and creating the request of carrying request/PDP Context.
Step 907, mobile management unit returns to PDP to UE and activates response, sends to UE via grand station system/family base station system;
The applicable UTRAN/GERAN user of above-mentioned flow process carries out PDP context activation and time pdp context activation.
More than describe a kind of system and method for local access, adopted the present invention can facilitate operator to management and the control of this locality access.
The above is only preferred embodiment of the present invention, is not for limiting protection scope of the present invention.

Claims (13)

1. a system that realizes local access, comprise mobile management unit, grand station system/family base station system, local gateway, it is characterized in that, also comprises:
Local accessing control server is used for preserving the mapping relations between grand station system/family base station system and its corresponding local gateway;
Interface between described local accessing control server and mobile management unit is the A1 interface, is used for when setting up local the connection mobile management unit and obtains the local gateway address from described local accessing control server;
Interface between the described local accessing control server local gateway corresponding with grand station system/family base station system is the A2 interface, when changing for the mapping relations between grand station system/family base station system local gateway corresponding with it, upgrade its mapping relations to local accessing control server request.
2. system according to claim 1, is characterized in that, the described system that realizes that this locality is accessed also comprises the Home eNodeB management system; Interface between described local accessing control server and Home eNodeB management system is the A3 interface;
If described local gateway and described family base station system close when establishing, the interface between described local accessing control server and described Home eNodeB is also the A3 interface;
Described A3 interface is used for Home eNodeB by the Home eNodeB management system or directly sends to described local accessing control server the message of setting up or upgrading family base station system and local gateway mapping relations, asks described local accessing control server to set up or upgrade the mapping relations of family base station system and local gateway.
3. system according to claim 1 and 2, it is characterized in that, described mapping relations are the mapping relations of setting up between the address information of the identify label of grand station system cell sign, Route Distinguisher, tracking sign, grand station system or grand station alliance identification information and local gateway; The mapping relations of perhaps setting up between the address information for the closed subscriber group identity of the positional information of family base station system, grand station system identification information that family base station system is corresponding, family base station system or family base station system IP address information and local gateway.
4. system according to claim 3, is characterized in that, the grand station system identification information of the correspondence of described family base station system is that described grand station system broadcasts is to grand station system cell sign, Route Distinguisher or the tracking identification information of family base station system.
5. system according to claim 1, it is characterized in that, subscriber equipment is adhering to, when setting up the PDN connection or setting up PDP Context, if described mobile management unit is signing according to the user or local access strategy judgement needs operator are set up local the connection, described mobile management unit by described A1 interface to local accessing control server request local gateway address, described local accessing control server finds corresponding local gateway address that it is fed back to described mobile management unit according to described grand station system/family base station system of preserving and mapping relations between local gateway, described mobile management unit is according to local connection of described local gateway address foundation that obtains.
6. system according to claim 5, is characterized in that, described local gateway address is the address list of a local gateway, and described mobile management unit selects a local gateway address to be used for setting up local the connection from described address list.
7. system according to claim 1 and 2, it is characterized in that the change mapping relations of the increase, deletion or the newly-increased local gateway that comprise grand station system corresponding to local gateway and grand station system of the mapping relations between described grand station system/family base station system local gateway corresponding with it; Or also comprise increase, deletion or the newly-increased local gateway of family base station system corresponding to local gateway or corresponding femto gateway and the mapping relations of family base station system or femto gateway.
8. system according to claim 2, is characterized in that, described A3 interface adopts the TR069 agreement.
9. a method that realizes local access, is characterized in that, the newly-increased local accessing control server that is used for preserving the mapping relations between grand station system/family base station system and its corresponding local gateway; Subscriber equipment obtains the address of local gateway from described local accessing control server when setting up local access connection, and set up corresponding this locality access connection;
Notify described local accessing control server to upgrade after mapping relations between described grand station system/family base station system local gateway corresponding with it change or change corresponding mapping relations;
Interface between the described local accessing control server local gateway corresponding with described grand station system/family base station system is the A2 interface, and the interface between described local accessing control server and Home eNodeB management system is the A3 interface; If the local gateway that family base station system is corresponding and described family base station system close when establishing, the interface between described local accessing control server and described Home eNodeB is also the A3 interface;
Described grand station system/family base station system upgrades the grand station system/family base station system of described local accessing control server preservation and the mapping relations between its corresponding local gateway by A2 interface or A3 interface.
10. method according to claim 9, it is characterized in that, the step that subscriber equipment is set up local access connection is specially: subscriber equipment is adhering to, when setting up the PDN connection or setting up PDP Context, if mobile management unit is signing according to the user or local access strategy judgement needs operator are set up local the connection, described mobile management unit passes through the A1 interface to local accessing control server request local gateway address, described local accessing control server finds corresponding local gateway address that it is fed back to described mobile management unit according to described grand station system/family base station system of preserving and mapping relations between local gateway, described mobile management unit is according to local connection of described local gateway address foundation that obtains.
11. method according to claim 9, it is characterized in that the change mapping relations of the increase, deletion or the newly-increased local gateway that comprise grand station system corresponding to local gateway and grand station system of the mapping relations between described grand station system/family base station system local gateway corresponding with it; Or the mapping relations of the increase, deletion or the newly-increased local gateway that also comprise family base station system corresponding to local gateway or corresponding femto gateway and family base station system or corresponding femto gateway.
12. method according to claim 9, it is characterized in that, described mapping relations are the mapping relations of setting up between the address information of the identify label of grand station system cell sign, Route Distinguisher, tracking sign, grand station system or grand station alliance identification information and local gateway; The mapping relations of perhaps setting up between the address information for the closed subscriber group identity of the positional information of family base station system, grand station system identification information that family base station system is corresponding, family base station system or family base station system IP address information and local gateway.
13. method according to claim 12 is characterized in that, the grand station system identification information of the correspondence of described family base station system is that described grand station system broadcasts is to grand station system cell sign, Route Distinguisher or the tracking identification information of family base station system.
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