CN102547861B - data distribution method and local gateway - Google Patents
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- CN102547861B CN102547861B CN201010578726.5A CN201010578726A CN102547861B CN 102547861 B CN102547861 B CN 102547861B CN 201010578726 A CN201010578726 A CN 201010578726A CN 102547861 B CN102547861 B CN 102547861B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- 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
- H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
Abstract
The invention discloses a kind of data distribution method and local gateway, the method comprises: request is set up in the carrying that local gateway receives from mobile management unit/selection administrative unit, and wherein carrying request of setting up sets up carrying for asking; Local gateway, according to the strategy preset, is shunted the data in carrying.The present invention, while guarantee well introduces local connection business, avoids a large amount of upgradings of the network equipment.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of data distribution method and local gateway.
Background technology
In order to keep 3-G (Generation Three mobile communication system) in the competitiveness of the communications field, for user provides the Mobile Communication Service that speed is faster, time delay is lower, more personalized, simultaneously, reduce the operation cost of operator, 3GPP (3rdGenerationPartnershipProject, third generation partner program) standard operation group is just being devoted to the research of evolved packet system (EvolvedPacketSystem, be called for short EPS).
Fig. 1 is the schematic diagram of the evolution grouping domain system structure according to correlation technique, and as shown in Figure 1, whole EPS is divided into wireless access network and core net two parts.In the core network, contain home subscriber server (HomeSubscriberServer, referred to as HSS), Mobility Management Entity (MobilityManagementEntity, referred to as MME), Serving GPRS Support Node (ServingGPRSSupportNode, referred to as SGSN), policy charging rule function (PolicyandChargingRuleFunction, referred to as PCRF), gateway (ServingGateway, referred to as S-GW), packet data gateway (PDNGateway, referred to as P-GW) and packet data network (PacketDataNetwork, packet data network).In order to support the intercommunication of EPS network and existing gateway, the network element in this network also supports IAD GPRS Support Node (GatewayGPRSServingNode, referred to as GGSN).Functions is described below in detail.
Home subscriber server, is the permanent storage place of user contracting data, is positioned at the home network that user contracts.
Mobility Management Entity, be the storage place of user contracting data in current network, be responsible for tracking under the Non-Access Stratum signaling management of terminal to network, the safety verification function of terminal, the mobile management of terminal, user's idle pulley and paging management function and bearer management.
Serving GPRS Support Node is the business support point of GERAN and UTRAN user access core network network, functionally similar with Mobility Management Entity, is responsible for the functions such as the location updating of user, paging management and bearer management.
Gateway is the gateway that core net arrives wireless system, the data buffer storage under responsible terminal to the user plane bearer, terminal idle mode of core net, the function of network side initiating business request, Lawful Interception and packet routing and forwarding capability; Gateway is responsible for the situation that counting user terminal uses wireless network, and produces the ticket that terminal uses wireless network, sends charging gateway to.
Packet data gateway, it is the gateway of evolution system and this its exterior packet data network, it is connected on internet and packet data network, be responsible for the function such as Internet protocol (InternetProtocol, referred to as IP) address assignment, billing function, grouping packet filtering, policy control of terminal.
Gateway GPRS Support Node, it is the gateway node in GPRS network, it is connected on internet and packet data network, is responsible for the function such as Internet protocol (InternetProtocol, referred to as IP) address assignment, billing function, grouping packet filtering, policy control of terminal.
Packet data network is the IP operation network of operator, this network by the core net of operator for user provides IP to serve.
Policy charging rule functional entity is the server being responsible for providing charging control, online diameter credit control, thresholding control, service quality (QualtyofService, referred to as QoS) tactful aspect rule in evolution system.
Wireless access network, by evolution base station (E-UTRANNodeB, be called for short eNB) and 3G radio network controller (RadioNetworkControl, be called for short RNC) composition, the transmitting-receiving of its primary responsibility wireless signal, by air interface and terminal contact, the Radio Resource of management air interface, scheduling of resource, access control.
Above-mentioned Serving GPRS Support Node is the SGSN upgraded, and can support the S4 interface between gateway, and and adopts GTPv2 agreement to carry out intercommunication between mobility management unit.And for supporting that the PS territory network architecture and Fig. 1 are different the SGSN of 3G core net.Now SGSN and MME adopts gn interface to be connected, and intercommunication adopts GTPv1 agreement.SGSN can not be connected with gateway, is connected to Gateway GPRS Support Node (GatewayGPRSSupportNode is called for short GGSN) directly carries out packet data network access by gn interface.
Home eNodeB (HomeNodeB, referred to as HNB) or the Home eNodeB (HomeeNodeN of evolution, be called for short HeNB) be small-sized, the lower powered base station of a class, as the dedicated resources of certain user, be deployed in the private sites such as family, group, company or school to use, mainly in order to provide higher service rate to user and reduce the expense used required for high rate services, make up the deficiency that existing distributed cellular radio communication system covers simultaneously.The advantage of Home eNodeB is economical, convenient, low-power output, plug and play, broadband access, use single-mode terminal etc.
Home eNodeB can be applied in 3G (3Generation, the third generation) or LTE (LongTermEvolution, Long Term Evolution) mobile communications network.For the ease of managing Home eNodeB, introduce new network element, i.e. a femto gateway in a network.The function that femto gateway mainly performs is: the fail safe of checking Home eNodeB, carries out maintenance management to the operation of Home eNodeB, according to Carrier Requirements configuration and control Home eNodeB, is responsible for the data message of exchcange core net and Home eNodeB.Fig. 2 is the schematic diagram of the 3G home base station network framework according to correlation technique, and 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 3G network is used for shielding the impact introduced on terminal and network side after Home eNodeB.
Fig. 3 is one of schematic diagram of home base station network framework according to correlation technique, Fig. 4 is the schematic diagram two of the home base station network framework according to correlation technique, Fig. 5 is the schematic diagram three of the home base station network framework according to correlation technique, for the optional deployment of femto gateway LTE network, therefore LTE femtocell and core net are connected with two kinds of modes, one is that Home eNodeB is directly connected with core network element, another kind is that Home eNodeB is connected with core network element by gateway, as shown in Figure 3,4.For the scene introducing femto gateway shown in Fig. 4, femto gateway can not integrated user plane functions, directly sets up user face, can make the flattening of user face like this between Home eNodeB and core network user veil close, data transmission delay reduces, as shown in Figure 5.
Home eNodeB is except supporting by except the access of mobile core network, local IP access function can also be supported, Home eNodeB possess local IP access capability and user contract allow local IP access condition under, this locality access of user to other IP devices of home network or internet can be realized.By local access function, the shunting of Internet data service can be realized, reduce core net load, and can not be forwarded by core net for the access of home network device, transfer of data convenient and efficient.Local IP access function also can use on macrocellular, main application and Home eNodeB similar, be more be applied in local IP to access this scene of Internet, object reduces core net load.
Fig. 6 is the schematic diagram of the network architecture according to the local access of the realization of correlation technique, and Fig. 6 sets forth the framework realizing above-mentioned local access function.Wherein, local access network closes the network being linked into external network (such as internet) as this locality, provides the functions such as address assignment, charging, grouping packet filtering, policy control.This network element is advised itself and existing base station from home or base stations united deployment when actual deployment as a logic unit module.For the scene of base station from home access, in network, also home base-station gateway may be there is, for there being the scene of home base-station gateway can on data path.
Fig. 7 is the flow chart setting up PDN or activation PDP Context according to correlation technique, as shown in Figure 7, accesses GPRS network illustrate how strategy issues for UE, and access EPC network is similar process, comprises following step S701 to step S711.
Step S701, terminal initiates PDP activation request, and this non-access layer information brings SGSN via base station.In this message, carried terminal wishes the APN information accessed.
The APN information that step S702, SGSN provide according to terminal, builds DNS query request message, to DNS query can GGSN address.
Step S703, DNS return query response message according to storage information to SGSN, wherein comprise available GGSN address information.One or more GGSN address can be comprised in this information.
Step S704, SGSN select GGSN from the GGSN address returned or address list.
Step S705, SGSN send PDP activation request to core network gateway, wherein carry UE mark, PDP type, QoS information, the parameters such as charge information.If access GPRS network, then core network gateway is GGSN, if access EPC network, then core network gateway refers to SGW and PGW.The network of access is different, and message is different, but acts on similar, is described as example here with what access GRPS network.
Step S706, core network gateway is verified the parameter of carrying in PDP activation request message, and authorizes the qos parameter carried in request.Core network gateway returns PDP activation response to SGSN, wherein carries the tunnel end mark into UE distributes, the information such as the qos parameter of mandate.
Step S707, SGSN send load-bearing allocation request to base station, wherein carry the Mobile Subscriber International ISDN Number of UE, APN, the information such as qos parameter.
Step S708, if base station receives the qos parameter that core network gateway issues, then the process of RRC connection establishment is initiated in base station.
Step S709, base station returns RAB to SGSN and assigns response message.If set up many carryings simultaneously, then base station can return multiple RAN and assign response message.If base station cannot accept the qos parameter in RAB assignment message, then assign in response message at the RAN returned and be indicated to SGSN.SGSN, according to this instruction, can select to issue new qos parameter.
Step S710, SGSN, according to whether setting up direct tunnel, judge whether to send PDP update request to core network gateway, if sent, then wherein carry the tunnel end mark of base station.If the QoS that QoS and before core network gateway issue is inconsistent, then SGSN is by PDP renewal process notice core network gateway.
Step S711, SGSN return PDP activation response to terminal, wherein carry the information such as the qos parameter of mandate.
Owing to applying for many years in GPRS network actual deployment, therefore there is a large amount of SGSN and GGSN equipment in present communication network, in order to both a large amount of upgrade of network apparatus can be avoided, local connection business can well be introduced again, the present invention proposes a kind of new network architecture, and support local connection business by reasonable disposition related network elements.
Summary of the invention
For in correlation technique when expanding local connection business, need the problem of upgrading to the network equipment accordingly and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of data distribution method and local gateway, to solve the problem.
To achieve these goals, according to an aspect of the present invention, a kind of data distribution method is provided.
Data distribution method according to the present invention comprises: request is set up in the carrying that local gateway receives from mobile management unit/selection administrative unit, and wherein carrying request of setting up sets up carrying for asking; Local gateway, according to the strategy preset, is shunted the data in carrying.
Further, local gateway, according to the strategy preset, is shunted the partial data in the data in carrying.
Further, at local gateway according to the strategy preset, after partial data in data in carrying is shunted, said method also comprises: local gateway sends carrying to core network gateway and sets up request, wherein the carrying request of setting up comprises the QoS parameter of the non-streamed data in non-streamed data mark and the data in carrying, and non-streamed data mark is used to indicate non-streamed data.
Further, the strategy preset comprises one of following: the local pre-configured strategy of local gateway; Local gateway is in advance from the strategy that other network elements obtain.
Further, mobile management unit comprises one of following: mobile management entity, service universal packet wireless business business support node.
Further, carrying foundation request comprises one of following: create session request, create PDP Context request.
To achieve these goals, according to another aspect of the present invention, a kind of local gateway is provided.
Local gateway according to the present invention comprises: receiver module, sets up request for the carrying received from mobile management unit/selection administrative unit, and wherein carrying request of setting up sets up carrying for asking; Diverter module, for according to the strategy preset, shunts the data in carrying.
Further, diverter module comprises: shunting submodule, for according to the strategy preset, shunts the partial data in the data in carrying.
Further, local gateway also comprises: sending module, request is set up for sending carrying to core network gateway, wherein the carrying request of setting up comprises the QoS parameter of the non-streamed data in non-streamed data mark and the data in carrying, and non-streamed data mark is used to indicate non-streamed data.
Further, local gateway also comprises: configuration module, at local collocation strategy; Acquisition module, for from other network element acquisition strategies.
The present invention is shunted data by local gateway, solve in correlation technique when expand local connection business time, need the problem of accordingly network equipment being upgraded, thus while guarantee well introduces local connection business, avoid a large amount of upgradings of the network equipment.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the evolution grouping domain system structure according to correlation technique;
Fig. 2 is the schematic diagram of the 3G home base station network framework according to correlation technique;
Fig. 3 is one of schematic diagram of home base station network framework according to correlation technique;
Fig. 4 is the schematic diagram two of the home base station network framework according to correlation technique;
Fig. 5 is the schematic diagram three of the home base station network framework according to correlation technique;
Fig. 6 is the schematic diagram of the network architecture according to the local access of the realization of correlation technique;
Fig. 7 is the flow chart setting up PDN or activation PDP Context according to correlation technique;
Fig. 8 is the flow chart of the data distribution method according to the embodiment of the present invention;
Fig. 9 is one of schematic diagram of the network architecture accessed according to this locality of the embodiment of the present invention,
Figure 10 is the schematic diagram two of the network architecture accessed according to this locality of the embodiment of the present invention;
Figure 11 is one of interaction diagrams accessed according to this locality of the embodiment of the present invention;
Figure 12 is the interaction diagrams two accessed according to this locality of the embodiment of the present invention;
Figure 13 is the structured flowchart of the local network management according to the embodiment of the present invention;
Figure 14 is the structured flowchart of local network management according to the preferred embodiment of the invention.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Embodiments provide a kind of data distribution method.Fig. 8 is the flow chart of the data distribution method according to the embodiment of the present invention, comprises following step S802 to step S804.
Step S802, request is set up in the carrying that local gateway receives from mobile management unit/selection administrative unit, and wherein carrying request of setting up sets up carrying for asking.
Step S804, local gateway, according to the strategy preset, is shunted the data in carrying.
In correlation technique, when expanding local connection business, need to upgrade to the network equipment with satisfied expansion needs accordingly.In the embodiment of the present invention, by local gateway, data are shunted, thus the processing pressure of the network equipment can be reduced, and then while guarantee well introduces local connection business, avoid a large amount of upgradings of the network equipment.
Preferably, local gateway, according to the strategy preset, is shunted the partial data in the data in carrying.
Preferably, at local gateway according to the strategy preset, after partial data in data in carrying is shunted, said method also comprises: local gateway sends carrying to core network gateway and sets up request, wherein the carrying request of setting up comprises the QoS parameter of the non-streamed data in non-streamed data mark and the data in carrying, and non-streamed data mark is used to indicate non-streamed data.
Preferably, this carrying request of setting up can also comprise service quality (QualityofService, referred to as QoS) parameter.
Preferably, the strategy preset comprises one of following: the local pre-configured strategy of local gateway; Local gateway is in advance from the strategy that other network elements obtain.
Preferably, mobile management unit comprises one of following: mobile management entity, service universal packet wireless business business support node.
Particularly, at the packet-based core networks (EvolvedPacketCore of evolution, referred to as EPC) in system, above-mentioned mobile management unit is mobile management entity (MobileManagementEntity, be called for short MME) or service universal packet wireless business business support node (ServingGeneralpacketradioserviceSupportNode, referred to as SGSN); In GPRS (GeneralPacketRadioService, referred to as GPRS) system, above-mentioned mobile management unit is SGSN.
Preferably, carrying foundation request comprises one of following: create session request, create PDP Context request.
Particularly, in EPC system, above-mentioned carrying sets up request for creating session request; In gprs system, above-mentioned carrying sets up request for creating PDP Context request.
Be described in detail below in conjunction with the implementation procedure of example to the embodiment of the present invention.
Fig. 9 is one of schematic diagram of the network architecture accessed according to this locality of the embodiment of the present invention.
This framework is applicable to terminal and accesses EPC network from GERAN/UTRAN/EUTRAN.This execution mode does not limit base station type, i.e. base station from home or ordinary base station.For UTRAN/GERAN access, base station from home/base station is HNB/RNC, and mobile management unit is SGSN.For EUTRAN access, base station from home/base station is HeNB/eNB, and mobile management unit is MME.For the scene of base station from home, may there is home base-station gateway in network, if there is home base-station gateway, the message between so all base station from home and mobile management unit all needs through home base-station gateway.Message between further base station from home and local gateway, also can not pass through home base-station gateway by home base-station gateway.For the scene by home base-station gateway forwarding messages, home base-station gateway carries out transparent transmission to the message of process, and the process of transparent transmission is unrelated to the invention, does not repeat here.Core network gateway in the present embodiment refers to SGW and PGW, or PGW.Compared with prior art, local gateway can according to the strategy of this locality configuration, or from the strategy of other network element Dynamic Acquisitions, determine the partial data in this carrying or PDP Context to shunt.For the data do not shunted in this carrying or PDP Context (i.e. core network data), local gateway needs to set up core net for it and connects.
Administrative unit is selected to introduce local connection business to the amendment of existing mobile management unit for shielding.
For mobile management unit, select administrative unit to be a core network gateway, mobile management unit is merely able to choose selection administrative unit by APN and/or positional information.Administrative unit is selected to be responsible for selecting local gateway, and/or core network gateway.
For core network gateway, local gateway sends the similar mobility management unit of mode of message, therefore can accomplish not affect core network gateway and existing mobility management unit.
On the other hand, in existing network, most of terminal does not support that set up multiple PDN connects simultaneously, therefore can meet existing local streamed data in same PDN connection/carrying by this implementation, can have core network data again.
Figure 10 is the schematic diagram two of the network architecture accessed according to this locality of the embodiment of the present invention.
This framework is applicable to terminal and accesses GPRS network from GERAN/UTRAN.This execution mode does not limit base station type, i.e. base station from home or ordinary base station.For UTRAN/GERAN access, base station from home/base station is HNB/RNC, and mobile management unit is SGSN.For the scene of base station from home, may there is home base-station gateway in network, if there is home base-station gateway, the message between so all base station from home and mobile management unit all needs through home base-station gateway.Message between further base station from home and local gateway, also can not pass through home base-station gateway by home base-station gateway.For the scene by home base-station gateway forwarding messages, home base-station gateway carries out transparent transmission to the message of process, and the process of transparent transmission is unrelated to the invention, does not repeat here.Core network gateway in the present embodiment refers to GGSN.
Compared with prior art, local gateway can according to the strategy of this locality configuration, or from the strategy decision of other network element Dynamic Acquisitions will, the partial data in this carrying or PDP Context is shunted.For the data do not shunted in this carrying or PDP Context (i.e. core network data), local gateway needs to set up core net for it and connects.
Administrative unit is selected to introduce local connection business to the amendment of existing mobile management unit for shielding.
For mobile management unit, select administrative unit to be a core network gateway, mobile management unit is merely able to choose selection administrative unit by APN and/or positional information.Administrative unit is selected to be responsible for selecting local gateway, and/or core network gateway.
In addition, local gateway or selection administrative unit can also with completing protocol conversion function, namely GTPv1 message and GTPv2 message conversion is completed, namely SGSN sends GTPv1 message to local gateway/selection administrative unit, but selects administrative unit to select not limit GGSN or PGW when core network gateway.
For core network gateway, local gateway sends the similar mobility management unit of mode of message, therefore can accomplish not affect core network gateway and existing mobility management unit.
On the other hand, in existing network, most of terminal does not support that set up multiple PDN connects simultaneously, therefore can meet existing local streamed data in same PDN connection/carrying by this implementation, can have core network data again.
Figure 11 is one of interaction diagrams accessed according to this locality of the embodiment of the present invention.This flow chart is based on the framework described in Fig. 9 or Figure 10.
Step S1101, terminal initiates PDP activation request, and this non-access layer information brings SGSN via base station.In this message, carried terminal wishes the APN information accessed.
The APN information that step S1102, SGSN provide according to terminal, builds DNS query request message, to DNS query can GGSN address.
Be set in dns server, if build DNS query request according to APN information, be then merely able to query selection administrative unit address.
Step S1103, DNS return query response message according to storage information to SGSN, wherein comprise available selection administrative unit address information.Can be comprised one or more in this information and select administrative unit address.
Step S1104, SGSN select administrative unit from the selection administrative unit address returned or address list.SGSN sends to selection administrative unit and creates PDP Context request, wherein carries UE mark, PDP type, QoS information, charge information, APN, the parameters such as the positional information of terminal.Wherein positional information can including but not limited to the Routing Area Identifier being UE, cell ID, and CSG identifies, Base Station Identification, Access Network title etc.
Step S1105, the APN selecting administrative unit to provide according to terminal and/or positional information, and/or label, build DNS query request message, to DNS query can local gateway address, and/or core network gateway address.
Step S1106, dns server is according to the corresponding address information of the inquiry of inquiry request.
Step S1107, dns server returns query response message, wherein comprises available selection local gateway information and/or core network gateway information.One or more address can be comprised in this information.
Step S1108, selects administrative unit to select local gateway address from the local gateway address returned or address list.Select administrative unit to send to local gateway and create PDP Context request, wherein carry UE mark, PDP type, QoS information, charge information, APN, the parameters such as the positional information of terminal.If also queried core network gateway address in step S1105, then also comprise core network gateway information in this request.
Step S1109, local gateway according to static configuration, or from the strategy of other network element Dynamic Acquisitions, determines the partial data in this carrying or PDP Context to shunt.For the data do not shunted in this carrying or PDP Context (i.e. core network data), local gateway needs to set up core net for it and connects, and supposes branching part here, therefore needs to perform step S1110 ~ step S1111.Local gateway according to whether carrying core network gateway address in the message of step S1108 judges whether to perform DNS query process.If carried, then without the need to performing DNS query process, otherwise local gateway needs to inquire about core network gateway address, describes similar, do not repeat here in query script and step S1105.
Step S1110, local gateway sends to core network gateway and creates PDP Context request, wherein carries UE mark, PDP type, the mark of non-streamed data and QoS information, charge information, APN, the parameters such as the positional information of terminal.
Step S1111, core network gateway is verified creating the parameter of carrying in PDP Context request message, and authorizes the qos parameter carried in request.Core network gateway returns to local gateway and creates PDP Context response, wherein carries the tunnel end mark into UE distributes, the information such as the qos parameter of mandate.
Step S1112 ~ step S1113, for streamed data, local gateway creates the parameter of carrying in PDP Context request message and verifies, and authorizes the qos parameter carried in request.Local gateway returns the response of establishment PDP Context by selecting administrative unit to local gateway, wherein carries the tunnel end mark into UE distributes, the information such as the qos parameter of mandate.If perform step S1110 ~ step S1111, then the QoS of this qos parameter QoS and core network data of comprising streamed data gathers.
Step S1114, performs the residue flow process of PDP activation, similarly to the prior art, does not repeat here.
Above-mentioned flow process describes based on the framework of Figure 10, if describe based on the framework of Fig. 9, similar with next embodiment, do not repeat here.
Figure 12 is the interaction diagrams two accessed according to this locality of the embodiment of the present invention, and this flow chart is based on the framework described in Fig. 9.
Step S1201, terminal initiates attach request, or the request of PDN connection establishment, and this non-access layer information brings SGSN via base station.In this message, carried terminal wishes the APN information accessed.If occur in attach process in step S1201, then the acquisition of APN information is after setting up secure connection, and this process is that prior art does not repeat here.
Step S1202, the APN information that mobile management unit provides according to terminal, builds DNS query request message, to DNS query can core network gateway address.
Be set in dns server, if build DNS query request according to positional information, be then merely able to query selection administrative unit address.
Wherein positional information, includes but not limited to Routing Area Identifier, cell ID, Base Station Identification, tracking area identification.
Step S1203, DNS return query response message according to storage information to mobility management unit, wherein comprise available selection administrative unit address information.Can be comprised one or more in this information and select administrative unit address.
Step S1204, mobility management unit selects administrative unit from the selection administrative unit address returned or address list.Mobility management unit sends to selection administrative unit and creates conversation request message, wherein carries UE mark, PDP type, QoS information, charge information, APN, the parameters such as the positional information of terminal.Wherein positional information can including but not limited to the Routing Area Identifier being UE, cell ID, Base Station Identification, and CSG identifies, Access Network title etc.Optionally can also carry core net PGW address.
Step S1205, the APN selecting administrative unit to provide according to terminal and/or positional information, and/or label, build DNS query request message, to DNS query can local gateway address.In this step, select administrative unit according to positional information and APN, local gateway address can be inquired about.This step by once or repeatedly having inquired about, only can describe once, but not limiting number of times here.
Step S1206, dns server returns query response message, wherein comprises available selection local gateway information.One or more address can be comprised in this information.
Step S1207, selects administrative unit to select local gateway address from the local gateway address returned or address list.Select administrative unit to send to local gateway and create session request, wherein carry UE mark, PDP type, QoS information, charge information, APN, the parameters such as the positional information of terminal.
Step S1208, local gateway is according to static configuration, or the routing policy of Dynamic Acquisition determines the partial data in this carrying or PDP Context to shunt.For the data do not shunted in this carrying or PDP Context (i.e. core network data), local gateway needs to set up core net for it and connects, and supposes branching part here, therefore needs to perform step S1210 to step S1211.
Step S1209, local gateway sends to core network gateway and creates session request, wherein carries UE mark, PDP type, the mark of non-streamed data and QoS information, charge information, APN, the parameters such as the positional information of terminal.
Step S1210, core network gateway is verified creating the parameter of carrying in PDP Context request message, and authorizes the qos parameter carried in request.Core network gateway returns establishment conversational response to local gateway, wherein carries the tunnel end mark into UE distributes, the information such as the qos parameter of mandate.
Step S1211 ~ step S1112, if judge it is need shunting and do not perform step S1209 ~ step S1110 in step S1208, then the parameter of carrying in local gateway establishment conversation request message is verified, and authorizes the qos parameter carried in request.Local gateway returns establishment conversational response by selecting administrative unit to local gateway, wherein carries the tunnel end mark into UE distributes, the information such as the qos parameter of mandate.If perform step S1209 ~ step S1210, then the QoS of this qos parameter QoS and core network data of comprising streamed data gathers.
Step S1213, performs PDN connection establishment, or the residue flow process of attach, similarly to the prior art, does not repeat here.
It should be noted that, can perform in the computer system of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing, and, although show logical order in flow charts, but in some cases, can be different from the step shown or described by order execution herein.
Embodiments provide a kind of local gateway, this local gateway may be used for realizing above-mentioned data distribution method.Figure 13 is the structured flowchart of the local network management according to the embodiment of the present invention, as shown in figure 13, comprises receiver module 1302 and diverter module 1304.
Receiver module 1302, sets up request for the carrying received from mobile management unit/selection administrative unit, and wherein carrying request of setting up sets up carrying for asking; Diverter module 1304, for according to the strategy preset, asked data in the carrying of setting up to be shunted in the carrying foundation request receive to receiver module 1302.
Preferably, diverter module 1304 comprises: shunting submodule 13042, for according to the strategy preset, shunts the partial data in the data in carrying.
Figure 14 is the structured flowchart of local gateway according to the preferred embodiment of the invention.
Preferably, local gateway also comprises: sending module 1306, be connected to diverter module 1304, request is set up for sending carrying to core network gateway, wherein the carrying request of setting up comprises the QoS parameter of the non-streamed data in non-streamed data mark and the data in carrying, and non-streamed data mark is used to indicate the data that the diverter module 1304 in the data in carrying is not shunted.
Preferably, local gateway also comprises: configuration module 1308, is connected to diverter module 1304, at local collocation strategy; Acquisition module 1309, is connected to diverter module 1304, for from other network element acquisition strategies.
It should be noted that, the local gateway described in device embodiment corresponds to above-mentioned embodiment of the method, and its concrete implementation procedure carried out detailed description in embodiment of the method, did not repeat them here.
In sum, according to the abovementioned embodiments of the present invention, a kind of data distribution method and local gateway is provided.By local gateway, data are shunted, solve in correlation technique when expand local connection business time, need the problem of accordingly network equipment being upgraded, thus while guarantee well introduces local connection business, avoid a large amount of upgradings of the network equipment.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a data distribution method, is characterized in that, comprising:
Local gateway receives from selecting the carrying of administrative unit to set up request, and wherein said carrying is set up request and set up carrying for asking;
Described local gateway, according to the strategy preset, is shunted the data in described carrying;
Wherein, mobile management unit can choose selection administrative unit by APN and/or positional information, selects administrative unit to be responsible for selecting local gateway, and/or core network gateway;
Wherein, described local gateway, according to the strategy preset, is shunted the partial data in the data in described carrying;
Wherein, at described local gateway according to the strategy preset, after shunting the partial data in the data in described carrying, described method also comprises:
Described local gateway sends described carrying to core network gateway and sets up request, the wherein said carrying request of setting up comprises the QoS parameter of the non-streamed data in the data in non-streamed data mark and described carrying, non-streamed data described in described non-streamed data mark is used to indicate.
2. method according to claim 1, is characterized in that, described in the strategy that presets comprise one of following:
The local pre-configured strategy of described local gateway;
Described local gateway is in advance from the strategy that other network elements obtain.
3. method according to claim 1, is characterized in that, described mobile management unit comprises one of following:
Mobile management entity, service universal packet wireless business business support node.
4. method according to claim 1, is characterized in that, described carrying foundation request comprises one of following:
Create session request, create PDP Context request.
5. a local gateway, is characterized in that, comprising:
Receiver module, for receiving from selecting the carrying of administrative unit to set up request, wherein said carrying is set up request and is set up carrying for asking;
Diverter module, for according to the strategy preset, shunts the data in described carrying;
Sending module, request is set up for sending described carrying to core network gateway, the wherein said carrying request of setting up comprises the QoS parameter of the non-streamed data in the data in non-streamed data mark and described carrying, non-streamed data described in described non-streamed data mark is used to indicate;
Wherein, mobile management unit is merely able to choose selection administrative unit by APN and/or positional information, selects administrative unit to be responsible for selecting local gateway, and/or core network gateway;
Wherein, described diverter module comprises:
Shunting submodule, for according to the strategy preset, shunts the partial data in the data in described carrying.
6. local gateway according to claim 5, is characterized in that, also comprises:
Configuration module, for configuring described strategy in this locality;
Acquisition module, for obtaining described strategy from other network elements.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010578726.5A CN102547861B (en) | 2010-12-08 | 2010-12-08 | data distribution method and local gateway |
| PCT/CN2011/083350 WO2012075907A1 (en) | 2010-12-08 | 2011-12-02 | Data distribution method and local gateway |
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| CN201010578726.5A CN102547861B (en) | 2010-12-08 | 2010-12-08 | data distribution method and local gateway |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104756541B (en) * | 2013-05-15 | 2019-02-05 | 华为技术有限公司 | A kind of shunt method and equipment of wireless network |
| CN105591864B (en) * | 2014-10-23 | 2019-01-18 | 中国电信股份有限公司 | Shunt method and system, the BAS Broadband Access Server of wireless local network user data |
| CN105847242A (en) | 2016-03-17 | 2016-08-10 | 北京佰才邦技术有限公司 | Data interception method and device based on local unloading |
| CN105847241A (en) * | 2016-03-17 | 2016-08-10 | 北京佰才邦技术有限公司 | Data interception method based on local unloading, local gateway and interception gateway |
| CN107333295B (en) * | 2017-06-09 | 2021-04-06 | 京信通信系统（中国）有限公司 | Data distribution method and gateway |
| CN112218334B (en) * | 2019-07-09 | 2023-07-04 | 中国移动通信集团安徽有限公司 | Dynamic optimization method and device for core network load and computing equipment |
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