CN102378160B - Based on carrying establishing method and the system of this locality access - Google Patents

Based on carrying establishing method and the system of this locality access Download PDF

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Publication number
CN102378160B
CN102378160B CN201010262031.6A CN201010262031A CN102378160B CN 102378160 B CN102378160 B CN 102378160B CN 201010262031 A CN201010262031 A CN 201010262031A CN 102378160 B CN102378160 B CN 102378160B
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qos parameter
message
base station
network
amendment
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CN102378160A (en
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梁爽
周娜
周晓云
王静
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ZTE Corp
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ZTE Corp
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic or resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup

Abstract

The invention discloses a kind of carrying establishing method based on this locality access, comprise: in carrying foundation or modification process, local gateway checks the message transmitted between mobile management network element and base station, when determining to shunt business datum, revise the QoS parameter comprised in described message.The present invention discloses a kind of carrying based on this locality access realizing said method and set up system, comprise inspection unit, for setting up in carrying or in modification process, checking the message transmitted between mobile management network element and base station; Can determining unit, for determining shunt business datum according to the information in described message, triggering amendment unit and revising the QoS parameter comprised in described message during energy.Local gateway of the present invention, by intercepting and capturing and revising QoS parameter, makes local gateway completely to cordless communication network shielding, and achieves and effectively control the QoS parameter of streamed data, decreases to introduce streamed data and impact the data of base station.

Description

Based on carrying establishing method and the system of this locality access
Technical field
The present invention relates to the carrying establishing techniques of data service, particularly relate to a kind of carrying establishing method based on this locality access and system.
Background technology
In order to keep the third generation (3G, 3thGeneration) mobile communication system is 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, third generation partner program (3GPP, 3rdGenerationPartnershipProject,) standard operation group is just being devoted to the research of evolved packet system (EPS, EvolvedPacketSystem).Fig. 1 shows the structural representation of evolution grouping domain system, 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 (HSS, HomeSubscriberServer), Mobility Management Entity (MME, MobilityManagementEntity), Serving GPRS Support Node (SGSN, ServingGPRSSupportNode), policy charging rule function (PCRF, PolicyandChargingRuleFunction), gateway (S-GW, ServingGateway), packet data gateway (P-GW, and packet data network (PDN, PacketDataNetwork) PDNGateway).Detailed functions below:
Home subscriber server, is the permanent storage place of user contracting data, is positioned at the home network that user contracts.
Mobility Management Entity, the storage place of user contracting data in current network, be responsible for tracking under subscriber equipment (UE, UserEquipment) to the mobile management, user's idle pulley of the safety verification function of the Non-Access Stratum signaling management of network, subscriber equipment, subscriber equipment 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 subscriber equipment to the user plane bearer, subscriber equipment idle pulley 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 of counting user equipment use wireless network, and produces the ticket that subscriber equipment 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 (IP, InternetProtocol) address assignment, billing function, grouping packet filtering, policy control of subscriber equipment.
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 (QoS, QualityofService) tactful aspect rule in evolution system.
Wireless access network, by evolution base station (eNB, and 3G radio network controller (RNC E-UTRANNodeB), RadioNetworkControl) form, the transmitting-receiving of its primary responsibility wireless signal, by air interface and user equipment 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 (GGSN, GatewayGPRSSupportNode) directly carries out packet data network access by gn interface.
Home eNodeB (HNB, or the Home eNodeB (HeNB of evolution HomeNodeB), HomeeNodeN) 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 subscriber equipment etc.
Home eNodeB can be applied in 3G or Long Term Evolution (LTE, LongTermEvolution) mobile communications network.For the ease of managing Home eNodeB, introduce a new network element in a network, i.e. femto gateway (HNBGW, HomeNodeBGateway).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 3G home base station network Organization Chart, and as shown in Figure 2,3G 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.For 3G network, femto gateway must shield the impact introduced on subscriber equipment and network side after Home eNodeB.For LTE network, femto gateway is optional deployment, therefore, LTE femtocell and core net are connected with two kinds of modes, and one is that Home eNodeB is directly connected with core network element, and another kind is that Home eNodeB is connected with core network element by gateway, respectively as shown in Figure 3,4, wherein, Fig. 3 is the schematic diagram of one of the LTE femtocell network architecture, and Fig. 4 is the schematic diagram of the LTE femtocell network architecture two.Fig. 5 is the schematic diagram of the LTE femtocell network architecture three, as shown in Figure 5, for the scene introducing femto gateway shown in Fig. 4, femto gateway can not integrated user plane functions, user face is directly set up between Home eNodeB and core network user veil close, can make the flattening of user face like this, data transmission delay reduces.
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 and Fig. 7 sets forth the framework realizing above-mentioned local access function, and whether essential difference is embodied in exists femto gateway.Wherein, local access network closes the network being linked into external network (such as Internet) as this locality, address assignment, charging, grouping packet filtering, policy control, data distribution function, wireless access network applying portion (NAS/RANAP are provided, RadiosAccessNetworkApplicationPart) function such as message parse, network address translation (NAT, NetworkAddressTranslation), local IP access policybased routing and execution.This network element also can combine deployment with existing Home eNodeB or femto gateway as self-existent network element as a logical block when actual deployment.Local access architecture is realized for macrocellular, or there is no the access architecture of femto gateway, can be realized by the framework shown in Fig. 7.
In above-mentioned framework, in order to reduce the impact on existing network element, although local gateway is positioned at base station on the data path of core network gateway, not by base station and core network gateway perception.In addition mainly refer to the data distribution near wireless side as this locality access here, comprise local IP at present and connect and select the business such as IP shunting business, do not limit subsequent expansion.
When UE sets up carrying, base station and core net network can be held consultation to the QoS parameter of each self-supporting, to ensure that the business for UE request can be run in corresponding carrying.In prior art, UE sets up the process of carrying as shown in Figure 8, and present embodiment is for the process of establishing of UTRAN/GERAN, and the process of establishing of EUTRAN process of establishing and UTRAN/GERAN is similar.
Step 801, Packet Data Protocol (PDP, PacketDataProtocol) activation request initiated by subscriber equipment, and this non-access layer information is transmitted to SGSN via base station.
Step 802, the APN (APN, AccessPointName) that SGSN provides according to UE, for UE selects a suitable core network gateway.SGSN sends PDP activation request to core network gateway, wherein carries UE mark, PDP type, QoS information, the parameters such as charge information.If access general packet radio service (GPRS, GeneralPacketRadioService) network, then core network gateway is GGSN, if access evolution block core (EPC, EvolvedPacketCore) network, then core network gateway refers to SGW and PGW.The network of access is different, and message mutual between network element also can be different, but its effect is similar, is described here with the example that is described as accessing GRPS network, it will be appreciated by those skilled in the art that the processing mode in all the other networks is also substantially identical.
Step 803, core network gateway is verified the parameter of carrying in PDP activation request message, and authorizes the qos parameter carried in request.
Step 804, 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 805, SGSN sends load-bearing allocation request to base station, wherein carries the Mobile Subscriber International ISDN Number of UE, APN, the information such as qos parameter.
Step 806, if base station receives the qos parameter that core network gateway issues, then the process of wireless heterogeneous networks (RRC, RadioResourceControl) connection establishment is initiated in base station.
Step 807, base station returns RAB (RAB, RadioAccessBear) to SGSN and assigns response message.If set up many carryings simultaneously, then base station can return multiple RAN and assign response message.
Step 808, if base station cannot accept the qos parameter in RAB assignment message, then assigns in response message at the RAN returned and is indicated to SGSN.SGSN, according to this instruction, can select to issue new qos parameter.
Step 809, SGSN, according to whether setting up direct tunnel, judges whether to send PDP update request to core network gateway, if sent, then wherein carries 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 810, SGSN sends PDP activation response message to UE.
UE can pass through certain base station access network network, but according to different data distribution strategies, data flow may a part be flowed out by core net network, and a part is shunted away by local gateway.In above-mentioned framework, in order to reduce the impact on gateway architecture, avoid introducing local gateway to the impact of other network elements in existing framework as far as possible, especially on the impact of base station, thus the cost overhead that this function of saving operator deployment is brought, therefore base station and core network gateway not perception are positioned at the local gateway on data path, thus the qos parameter causing core network gateway and base station to control is inconsistent, especially, when streamed data amount is larger, excessive data may cause the data of core net to be affected even packet loss.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of carrying establishing method based on this locality access and system, in the network with local access network pass, UE also can be made to access smoothly.
For achieving the above object, technical scheme of the present invention is achieved in that
Based on a carrying establishing method for this locality access, comprising:
In carrying foundation or modification process, local gateway checks the message transmitted between mobile management network element and base station, when determining to shunt business datum, revises the QoS parameter comprised in described message.
Preferably, describedly determine that carrying out shunting to business datum is specially: can local gateway be determined shunt business datum according to the information of carrying in carrier policy and/or the message transmitted between described mobile management network element and base station.
Preferably, the QoS parameter comprised in the described message of described amendment is specially:
The QoS parameter of shunting business is determined according to the data transportation requirements of shunting business;
According to the QoS parameter of determined shunting business, amendment QoS parameter.
Preferably, in the message transmitted between mobile management network element and base station, also carry the QoS parameter that UE is signing, the QoS parameter that described local gateway makes amended QoS parameter contract without prejudice to described UE.
Preferably, described method also comprises:
Amended QoS parameter is placed in carrying association request message by described local gateway, and is transmitted to base station or mobility management unit.
Preferably, described mobile management network element is SGSN, and described carrying is set up or the process of amendment is that PDP activation request process or PDP revise request process; Described carrying association request message is RAB assignment request message or wireless access load-bearing allocation response message.
Preferably, described mobile management network element is MME, described carrying is set up or the process of amendment is PDN connection establishment process, or be attachment flow, or be the resource allocation process that terminal is initiated, or being the resource modifying process that terminal is initiated, or being the loading establishing process of network initiation, or is bearing modification process; Described carrying association request message is that UE initial context sets up request message, or sets up request message for RAB, or sets up response message for UE initial context, or sets up response message for RAB.
A system is set up in carrying based on this locality access, is applicable to GPRS network or EPC network; Described system comprises inspection unit, determining unit and amendment unit; Wherein,
Inspection unit, for setting up in carrying or in modification process, checking the message transmitted between mobile management network element and base station;
Can determining unit, for determining shunt business datum according to the information in described message, trigger amendment unit during energy;
Amendment unit, for revising the QoS parameter comprised in described message.
Preferably, can described determining unit be determined shunt business datum according to the information of carrying in carrier policy and/or the message transmitted between described mobile management network element and base station further.
Preferably, described amendment unit determines the QoS parameter of shunting business further according to the data transportation requirements of shunting business; According to the QoS parameter of determined shunting business, amendment QoS parameter.
Preferably, in the message transmitted between mobile management network element and base station, also carry the QoS parameter that UE is signing, the QoS parameter that described amended QoS parameter is contracted without prejudice to described UE.
Preferably, described system also comprises load bearing unit and retransmission unit; Wherein,
Load bearing unit, for the amended QoS parameter of described amendment unit being placed in carrying association request message, is transmitted to base station by retransmission unit.
Preferably, described mobile management network element is SGSN, and described carrying is set up or the process of amendment is that PDP activation request process or PDP revise request process; Described carrying association request message is that RAB assignment request message or RAB assign response message.
Preferably, described mobile management network element is MME, described carrying is set up or the process of amendment is PDN connection establishment process, or be attachment flow, or be the resource allocation process that terminal is initiated, or being the resource modifying process that terminal is initiated, or being the loading establishing process of network initiation, or is bearing modification process; Described carrying association request message is that UE initial context sets up request message, or sets up request message for RAB, or sets up response message for UE initial context, or sets up response message for RAB.
In the present invention, when initiating the radio bearer for UE, when network side is after present wireless bearing determines the QoS parameter of corresponding service bearer, before being sent to UE access base station again, be sent to local gateway and carry out data distribution whether judgement, when shunting business datum, local gateway will redefine QoS parameter for shunting business, and this QoS parameter is without prejudice to the QoS parameter in the subscription data of UE.Amended related news are sent to base station by local gateway, are carried out the carrying Establishing process of being correlated with by base station.In the present invention, local gateway, by intercepting and capturing and revising QoS parameter, makes local gateway completely to cordless communication network shielding, and achieves and effectively control the QoS parameter of streamed data, decreases to introduce streamed data and impact the data of base station.
Accompanying drawing explanation
Fig. 1 is the structural representation of evolution grouping domain system;
Fig. 2 is 3G home base station network configuration diagram;
Fig. 3 is the schematic diagram of one of the LTE femtocell network architecture;
Fig. 4 is the schematic diagram of the LTE femtocell network architecture two;
Fig. 5 is the schematic diagram of the LTE femtocell network architecture three;
Fig. 6 is the schematic diagram of one of the network architecture realizing local access;
Fig. 7 is the schematic diagram of the network architecture two realizing local access;
Fig. 8 is in prior art, and UTRAN accesses the process of PDP activation flow process;
Fig. 9 is the flow chart of the present invention's processing mode one of local gateway amendment QoS parameter when accessing GPRS network;
The flow chart of the processing mode two of local gateway amendment QoS parameter when Figure 10 the present invention accesses GPRS network;
The flow chart of the processing mode one of local gateway amendment QoS parameter when Figure 11 the present invention accesses EPC network;
Figure 12 is the flow chart of the present invention's processing mode two of local gateway amendment QoS parameter when accessing EPC network;
Figure 13 the present invention is based on the one composition structural representation that system is set up in the local carrying accessed.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, by the following examples also with reference to accompanying drawing, the present invention is described in more detail.
Fig. 9 is the flow chart of the present invention's processing mode one of local gateway amendment QoS parameter when accessing GPRS network, and as shown in Figure 9, do not limit base station type in present embodiment, namely base station can Home eNodeB, evolution base station or ordinary base station etc.For base station during flow process describes, be identical for processing modes such as Home eNodeB.Present embodiment goes for the situation that UTRAN/GERAN accesses GPRS network.And core network gateway refers to the GGSN/PGW being positioned at core net, this network element is unrelated to the invention, does not repeat here.Local gateway can be data distribution function (TOF) entity or NAT gateway in the present embodiment, but practical function is substantially identical, and the present embodiment is described for TOF entity.Be the scene of Home eNodeB for base station, may there is femto gateway in network, when there is femto gateway, the message between all Home eNodeB and mobile management net element all needs to carry out forwarding through femto gateway.Further, the message between Home eNodeB and local gateway, also can not can be sent by femto gateway by femto gateway.For the scene by femto gateway forwarding messages, femto gateway carries out transparent transmission to the message of process.
As shown in Figure 9, when the present invention accesses GPRS network, the handling process of local gateway amendment QoS parameter specifically comprises the following steps:
Step 901, PDP activation request initiated by subscriber equipment, and this non-access layer information is transmitted to SGSN via base station.
Step 902, the APN that SGSN provides according to UE, for UE selects a suitable core network gateway.SGSN sends PDP activation request to core network gateway, wherein carries UE mark, PDP type, QoS information, the parameters etc. such as charge information.
Step 903, core network gateway is verified the parameter of carrying in PDP activation request message, and authorizes the qos parameter carried in request.
Step 904, 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 905, SGSN judges whether to allow UE to set up local access service (including but not limited to that local IP access service or selected IP shunt business) according to the APN information that the CAMEL-Subscription-Information of UE and/or UE request connect, RAB assignment request message is sent to base station, wherein carry the Mobile Subscriber International ISDN Number of UE, APN, qos parameter, the information such as billing features parameter.Optionally wherein also need to carry signing QoS parameter, include but not limited to Maximum Bit Rate (MBR, MaximumBitRate), ensure the parameters such as bit rate (GBR, GuaranteedBitRate).
Step 906, TOF entity intercepts and captures the RAB assignment request message that SGSN sends, Mobile Subscriber International ISDN number (the MSISDN judging according to carrier policy and comprise in RAB assignment request message, MobileStationInternationalISDNNumber), APN and/or billing features information, whether judgement will will all carry, or some data in carrying are shunted.TOF entity, according to the data characteristic of selected shunting, determines the QoS parameter that streamed data needs, comprising but be not limited to Maximum Bit Rate, the QoS parameters such as RAB symmetry instruction (be used to indicate up-downgoing data whether symmetrical).TOF entity is revised from the QoS parameter RAB assignment request message according to the QoS parameter of streamed data.If optional step 905 has issued signing QoS parameter, then require that amended QoS parameter can not run counter to signing QoS parameter.The process of amendment is described for Maximum Bit Rate, Maximum Bit Rate in RAB assignment request is A, if issue the signing Maximum Bit Rate of UE in optional step 905, be assumed to be B, the Maximum Bit Rate that TOF entity determines streamed data is C, then in the amended RAB assignment message of TOF, Maximum Bit Rate is A+C.TOF requires C<B-A when the Maximum Bit Rate determining streamed data.In a word, all QoS parameters revised can not run counter to signing QoS parameter, and concrete amendment principle is arranged in advance by operator.
TOF entity needs to preserve the QoS parameter carried in former RAB assignment request message, and amended QoS parameter.
Step 907, the RAB assignment request message revised is sent to base station by TOF entity.
Step 908, 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 909, base station returns RAB to SGSN and assigns response message.If set up many carryings simultaneously, then base station can return multiple RAB and assign response message.
Step 910, if base station cannot accept the qos parameter in RAB assignment request message, then assigns in response message at the RAB returned and is indicated to SGSN.Optionally, TOF entity intercepts and captures this message, and whether recording carrying is successfully established.
Step 911, TOF entity forwards RAB to SGSN and assigns response message, and SGSN, according to this instruction, can select to issue new qos parameter.
If follow-up SGSN has issued new RAB assignment request message, then TOF entity has still needed intercept and capture and process according to the processing mode of step 906.
Step 912, SGSN, according to whether setting up direct tunnel, judges whether to send PDP update request to core network gateway, if sent, then wherein carries 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 913, SGSN sends PDP activation response message to UE.
This process is applicable to PDP activation, the secondary PDP activation that UE initiates, the PDP that network is initiated and time PDP activation flow process.
The flow chart of the processing mode two of local gateway amendment QoS parameter when Figure 10 the present invention accesses GPRS network, as shown in Figure 10, do not limit base station type in present embodiment, namely base station can Home eNodeB, evolution base station or ordinary base station etc.For base station during flow process describes, be identical for processing modes such as Home eNodeB.Present embodiment goes for the situation that UTRAN/GERAN accesses GPRS network.And core network gateway refers to the GGSN/PGW being positioned at core net, this network element is unrelated to the invention, does not repeat here.Local gateway can be data distribution function (TOF) entity or NAT gateway in the present embodiment, but practical function is substantially identical, and the present embodiment is described for TOF entity.Be the scene of Home eNodeB for base station, may there is femto gateway in network, when there is femto gateway, the message between all Home eNodeB and mobile management net element all needs to carry out forwarding through femto gateway.Further, the message between Home eNodeB and local gateway, also can not can be sent by femto gateway by femto gateway.For the scene by femto gateway forwarding messages, femto gateway carries out transparent transmission to the message of process.
As shown in Figure 10, when the present invention accesses GPRS network, the handling process of local gateway amendment QoS parameter specifically comprises the following steps:
Step 1001, PDP amendment request initiated by subscriber equipment, and this non-access layer information is transmitted to SGSN via base station.
Step 1002, SGSN judges whether to allow UE amendment according to the CAMEL-Subscription-Information that UE provides, if allowed, performs subsequent step.SGSN sends PDP amendment request to core network gateway, wherein carries the information such as the QoS parameter that UE asks.
Step 1003, core network gateway is verified the parameter of carrying in PDP modify request messages, and authorizes the qos parameter carried in request.
Step 1004, core network gateway returns PDP amendment response to SGSN, wherein carries the information such as the qos parameter of again authorizing.
Step 1005, SGSN judges whether to allow UE to set up local access service (including but not limited to that local IP access service or selected IP shunt business) according to the APN information that the CAMEL-Subscription-Information of UE and/or UE request connect, if allow to send RAB assignment request message to base station, wherein carry the Mobile Subscriber International ISDN Number of UE, APN, again qos parameter is authorized, the information such as billing features parameter.Optionally wherein also need to carry signing QoS parameter, include but not limited to MBR, the parameters such as GBR.
Step 1006, TOF entity intercepts and captures the RAB assignment request message that SGSN sends, the MSISDN judging according to carrier policy and comprise in RAB assignment request message, APN and/or billing features information, whether judgement will will all carry, or some data in carrying are shunted.TOF entity, according to the data characteristic of selected shunting, determines the QoS parameter that streamed data needs, comprising but be not limited to Maximum Bit Rate, the QoS parameters such as RAB symmetry instruction (be used to indicate up-downgoing data whether symmetrical).TOF entity is according to the QoS parameter of QoS parameter amendment from RAB assignment is asked of streamed data.If optional step 1005 has issued signing QoS parameter, then require that amended QoS parameter can not run counter to signing QoS parameter.The process of amendment is described for Maximum Bit Rate, Maximum Bit Rate in RAB assignment request message is A, if issue the signing Maximum Bit Rate of UE in optional step 1005, be assumed to be B, the Maximum Bit Rate that TOF entity determines streamed data is C, then in the amended RAB assignment message of TOF entity, Maximum Bit Rate is A+C.TOF entity requires C<B-A when the Maximum Bit Rate determining streamed data.
TOF entity needs to preserve the QoS parameter carried in former RAB assignment request message, and amended QoS parameter.
Step 1007, the RAB assignment request message revised is sent to base station by TOF entity.
Step 1008, 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 1009, base station returns RAB to SGSN and assigns response message.If set up many carryings simultaneously, then base station can return multiple RAB and assign response message.
Step 1010, if base station cannot accept the qos parameter in RAB assignment request message, then assigns in response message at the RAN returned and is indicated to SGSN.Optionally, TOF entity intercepts and captures this message, and whether recording carrying is successfully established.
Step 1011, TOF entity forwards RAB to SGSN and assigns response message SGSN according to this instruction, can select to issue new qos parameter.
If follow-up SGSN has issued new RAB assignment request message, then TOF entity has still needed intercept and capture and process according to the processing mode of step 1006.
Step 1012, SGSN, according to whether setting up direct tunnel, judges whether to send PDP update request to core network gateway, if sent, then wherein carries 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 1013, SGSN sends PDP to UE and revises response message.
This flow process is applicable to the PDP that PDP revises, SGSN the initiates amendment that UE initiates, the PDP amendment that GGSN initiates, the PDP modification process of HLR/HSS initiation.
The flow chart of the processing mode one of local gateway amendment QoS parameter when Figure 11 the present invention accesses EPC network, as shown in figure 11, present embodiment does not limit base station type, and namely base station can be Home eNodeB or ordinary base station.For base station during flow process describes, be identical on the impact of Home eNodeB.Present embodiment goes for the situation that UTRAN/EUTRAN accesses EPC network.For UTRAN/GERAN access, mobile management net element refers to SGSN; For EUTRAN access, mobile management net element refers to MME.Core network gateway refers to the SGW/PGW being positioned at core net.Local gateway can be TOF entity or NAT gateway in this embodiment, but practical function is similar.The present embodiment accesses EPC network with ETURAN, and base station is ordinary base station, and local gateway is NAT gateway is that example is described.Be the scene of Home eNodeB for base station, may there is femto gateway in network, when there is femto gateway, the message between all Home eNodeB and mobile management net element all needs to carry out forwarding through femto gateway.Further, the message between Home eNodeB and local gateway, also can not can be sent by femto gateway by femto gateway.For the scene by femto gateway forwarding messages, femto gateway carries out transparent transmission to the message of process.
As shown in figure 11, when the present invention accesses EPC network, the handling process of local gateway amendment QoS parameter specifically comprises the following steps:
Step 1101, the request of PDN connection establishment initiated by subscriber equipment, and this non-access layer information sends to MME via base station.
Step 1102, the APN that MME provides according to UE, for UE selects a suitable core network gateway.MME sends establishment session request to by SGW to PGW, wherein carries UE mark, PDN type, the QoS information that UE is signing, the parameters such as charge information.
Step 1103, PGW gateway is verified creating the parameter of carrying in conversation request message, and authorizes the signing qos parameter carried in request.
Step 1104, PGW returns establishment conversational response message by SGW to MME, wherein carries the tunnel end mark into UE distributes, the information such as the qos parameter of mandate.
Step 1105, MME judges whether to allow UE to set up local access service (including but not limited to that local IP access service or selected IP shunt business) according to the APN information that the CAMEL-Subscription-Information of UE and/or UE request connect, send UE initial context to base station and set up request message, or RAB sets up request message.Whether the mark of wherein carrying UE (includes but not limited to the Mobile Subscriber International ISDN Number/IMSI/S-TMSI of UE, and/or APN, and/or qos parameter, and/or billing features parameter, and/or allows to set up the information such as local connection.Optionally wherein also need to carry signing QoS parameter, include but not limited to the MBR of UE.The default bearing activation request needing to pass through UE is also carried in this message.
Whether send UE initial context request message, or RAB sets up request message, be that UE establishes S1 and connects according to MME.Establish S1 between MME and base station to connect, then issued RAB and set up request, otherwise issue the request of UE initial context.It is similar that what above-mentioned two message were carried relate to content of the present invention, and Rule of judgment is prior art.
Step 1106, local gateway intercepts and captures the UE initial context request message that MME sends, or RAB sets up request message, the MSISDN judging according to carrier policy and comprise in message, APN and/or billing features information, and/or whether allow to set up local connection, whether judgement will will all carry, or some data in carrying are shunted.Local gateway, according to the data characteristic of selected shunting, determines the QoS parameter that streamed data needs, comprising but be not limited to Maximum Bit Rate, the QoS parameters such as RAB symmetry instruction (be used to indicate up-downgoing data whether symmetrical).Local gateway is according to the QoS parameter amendment UE initial context request message of streamed data, or RAB sets up the QoS parameter in request message.If optional step 1105 has issued signing QoS parameter, then require that amended QoS parameter can not run counter to signing QoS parameter.The process of amendment is described for Maximum Bit Rate, UE initial context request message, or the RAB Maximum Bit Rate set up in request message is A, if issue the signing Maximum Bit Rate of UE in optional step 1105, be assumed to be B, the Maximum Bit Rate that local gateway determines streamed data is C, then it is A+C that Maximum Bit Rate in request is set up in local gateway amended UE initial context request, or RAB.Local gateway requires C<B-A when the Maximum Bit Rate determining streamed data.
Local gateway needs to preserve the request of former UE initial context, or RAB sets up the QoS parameter carried in request, and amended QoS parameter.
Local gateway also needs amendment MME to need to pass through the QoS parameter in the default bearing activation request of UE, and the QoS parameter of amendment is consistent with above-mentioned.
Step 1107, the UE initial context request that local gateway will be revised, or the RAB request of setting up sends to base station.
Step 1108, if base station receives the qos parameter that core network gateway issues, then the process of RRC connection establishment is initiated in base station.Otherwise request is set up in base station refusal carrying.
Step 1109, base station returns the response of UE initial context to MME, or RAB sets up response message.
Step 1110, optionally, local gateway intercepts and captures this message, and whether recording carrying is successfully established.Local gateway forwards to MME.UE initial context responds, or RAB sets up response message.
Step 1111, UE returns default bearing by base station to MME and activates response.Optionally, local gateway intercepts and captures this message, and whether recording carrying is successfully established.
Step 1112, MME sends to SGW and upgrades load bearing process, and the tunnel end mark of base station is sent to SGW.
This process is applicable to PDN establishment of connection in the attach process of UE initiation, is also applicable to independent PDN connection establishment process.
UTRAN/GERAN is accessed to the situation of EPC network, core network gateway is SGW and PGW, in addition UE to base station to the message of SGSN and Fig. 9 similar, and SGSN to the flow process of core net network and Figure 11 similar.Essential difference is if in step 909, and RNC instruction can not accept the QoS parameter that network issues, then SGSN can directly to core net network return deleting bearing command request or etc. to be retransmitted, and can not qos parameter be re-issued.Said process is existing known technology, does not repeat here.
Figure 12 is the flow chart of the present invention's processing mode two of local gateway amendment QoS parameter when accessing EPC network, and as shown in figure 12, present embodiment does not limit base station type, and namely base station can be Home eNodeB or ordinary base station.For base station during flow process describes, be identical on the impact of Home eNodeB.Present embodiment goes for the situation that UTRAN/EUTRAN accesses EPC network.For UTRAN/GERAN access, mobile management net element refers to SGSN; For EUTRAN access, mobile management net element refers to MME.Core network gateway refers to the SGW/PGW being positioned at core net.Local gateway can be TOF entity or NAT gateway in this embodiment, but practical function is similar.The present embodiment accesses EPC network with ETURAN, and base station is ordinary base station, and local gateway is NAT gateway is that example is described.Be the scene of Home eNodeB for base station, may there is femto gateway in network, when there is femto gateway, the message between all Home eNodeB and mobile management net element all needs to carry out forwarding through femto gateway.Further, the message between Home eNodeB and local gateway, also can not can be sent by femto gateway by femto gateway.For the scene by femto gateway forwarding messages, femto gateway carries out transparent transmission to the message of process.
As shown in figure 12, when the present invention accesses EPC network, the handling process of local gateway amendment QoS parameter specifically comprises the following steps:
Step 1201, PGW initiates to create carrying request, wherein carries the IMSI of UE, charging ID, the information such as QoS parameter, sends to MME by SGW.
Step 1202, MME judges whether to allow UE to set up local access service (including but not limited to that local IP access service or selected IP shunt business) according to the APN information that the CAMEL-Subscription-Information of UE and/or UE request connect, and sends RAB set up request message to base station.The mark of wherein carrying UE (includes but not limited to the Mobile Subscriber International ISDN Number/IMSI/S-TMSI of UE, and/or APN, and/or qos parameter (includes but not limited to the Maximum Bit Rate of UE, and/or carrying guarantee bit rate and Maximum Bit Rate), and/or billing features parameter, and/or whether allow to set up the information such as local connection.Optionally wherein also need to carry signing QoS parameter, include but not limited to UE Maximum Bit Rate (MBR).The dedicated bearer activation request needing to pass through UE is also carried in this message.
Step 1203, the RAB that local gateway intercepts and captures MME transmission sets up request message, the MSISDN judging according to carrier policy and comprise in message, APN and/or billing features information, and/or whether allow to set up local connection, whether judgement will will all carry, or some data in carrying are shunted.Local gateway, according to the data characteristic of selected shunting, determines the QoS parameter that streamed data needs, comprising but be not limited to Maximum Bit Rate, the QoS parameters such as RAB symmetry instruction (be used to indicate up-downgoing data whether symmetrical).Local gateway is according to the QoS parameter amendment UE initial context request of streamed data, or RAB sets up the QoS parameter in request.If optional step 1202 has issued signing QoS parameter, then require that amended QoS parameter can not run counter to signing QoS parameter.The process of amendment is described for Maximum Bit Rate, the request of UE initial context, or the Maximum Bit Rate that RAB sets up in request is A, if issue the signing Maximum Bit Rate of UE in optional step 1202, be assumed to be B, the Maximum Bit Rate that local gateway determines streamed data is C, then it is A+C that Maximum Bit Rate in request is set up in local gateway amended UE initial context request, or RAB.Local gateway requires C<B-A when the Maximum Bit Rate determining streamed data.
Local gateway needs to preserve the request of former UE initial context, or RAB sets up the QoS parameter carried in request, and amended QoS parameter.
Local gateway also needs amendment MME to need to pass through the QoS parameter in the default bearing activation request of UE, and the QoS parameter of amendment is consistent with above-mentioned.
Step 1204, the RAB revised is set up request message and sends to base station by local gateway.
Step 1205, if base station receives the qos parameter that core network gateway issues, then the process of RRC connection establishment is initiated in base station.Otherwise base station refusal RAB sets up request message.
Step 1206, base station returns RAB to MME and sets up response message.
Step 1207, optionally, local gateway intercepts and captures this message, and whether recording carrying is successfully established.Local gateway forwards UE initial context response message to MME, or RAB sets up response message.
Step 1208, UE returns dedicated bearer by base station to MME and activates response.Optionally, local gateway intercepts and captures this message, and whether recording carrying is successfully established.
Step 1209, MME sends to SGW and creates bearing response message, and the tunnel end mark of base station is sent to SGW.SGW forwards to PGW and creates bearing response message.
This process is equally applicable to the bearing modification process that PGW initiates, in this process, message in step 1201/1209 is more new bearer request, the message of step 1202/1204 is that RAB amendment request is wherein carried MME and passed through the message of UE for amendment carrying request, the message of step 1206/1207 is RAB amendment response, is amendment carrying response in step 1208.The implementation of the parameter local gateway that wherein the present invention relates to all with this embodiment in similar, do not repeat here.
This process is equally applicable to, the carrying foundation of the Resourse Distribute that UE initiates or the PGW initiation that the resource modifying process that UE initiates triggers or bearing modification process, or MME/HSS initiates carrying bearing modification process.
UTRAN/GERAN is accessed to the situation of EPC network, core network gateway is SGW and PGW, in addition UE to base station to the message of SGSN and Figure 10 similar, and SGSN to the flow process of core net network and Figure 12 similar.Essential difference is if in step 1009, and RNC instruction can not accept the QoS parameter that network issues, then SGSN can directly to core net network return deleting bearing command request or etc. to be retransmitted, and can not qos parameter be re-issued.Said process is existing known technology, does not repeat here.
The carrying that the present invention is based on local access is set up system and is applicable to GPRS network or EPC network.Figure 13 the present invention is based on the one composition structural representation that system is set up in the local carrying accessed, and as shown in figure 13, described system comprises inspection unit 130, determining unit 131 and amendment unit 132; Wherein,
Inspection unit 130, for setting up in carrying or in modification process, checking the message transmitted between mobile management network element and base station;
Can determining unit 131, for determining shunt business datum according to the information in described message, trigger amendment unit during energy;
Amendment unit 132, for revising the QoS parameter comprised in described message.
Can above-mentioned determining unit 131 be determined shunt business datum according to the information of carrying in carrier policy and/or the message transmitted between described mobile management network element and base station further.
Above-mentioned amendment unit 132 determines the QoS parameter of shunting business further according to the data transportation requirements of shunting business; According to the QoS parameter of determined shunting business, amendment QoS parameter.
Wherein, in the message transmitted between mobile management network element and base station, also carry the QoS parameter that UE is signing, the QoS parameter that described amended QoS parameter is contracted without prejudice to described UE.
On the basis of system shown in Figure 13, the carrying that the present invention is based on local access is set up system and is also comprised load bearing unit (not shown) and retransmission unit (not shown); Wherein,
Load bearing unit, for the amended QoS parameter of described amendment unit being placed in carrying association request message, is transmitted to base station by retransmission unit.
Above-mentioned mobile management network element is SGSN, and described carrying is set up or the process of amendment is that PDP activation request process or PDP revise request process; Described carrying association request message is RAB assignment request message.
Above-mentioned mobile management network element is MME, described carrying is set up or the process of amendment is PDN connection establishment process, or be attachment flow, or be the resource allocation process that terminal is initiated, or be the resource modifying process that terminal is initiated, or be the loading establishing process that network is initiated, or be bearing modification process; Described carrying association request message is that UE initial context sets up request message, or sets up request message for RAB, or sets up response message for UE initial context, or sets up response message for RAB.
Those skilled in the art are to be understood that, it is design for realizing the aforesaid carrying establishing method based on this locality access that system is set up in the carrying based on this locality access shown in Figure 13 of the present invention, and the practical function of above-mentioned each processing unit can refer to the associated description of preceding method and understands.The function of each processing unit in figure realizes by the program run on processor, also realizes by concrete logical circuit.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.

Claims (10)

1., based on a carrying establishing method for this locality access, it is characterized in that, described method comprises:
In carrying foundation or modification process, local gateway checks the message transmitted between mobile management network element and base station, when determining to shunt business datum, revises the QoS parameter comprised in described message;
The QoS parameter comprised in the described message of described amendment is specially: the QoS parameter determining shunting business according to the data transportation requirements of shunting business; According to the QoS parameter of determined shunting business, amendment QoS parameter;
The QoS parameter that user equipment (UE) is signing is also carried, the QoS parameter that described local gateway makes amended QoS parameter contract without prejudice to described UE in the message transmitted between described mobile management network element and base station.
2. method according to claim 1, it is characterized in that, describedly determine that carrying out shunting to business datum is specially: can local gateway be determined shunt business datum according to the information of carrying in carrier policy and/or the message transmitted between described mobile management network element and base station.
3. method according to claim 1, is characterized in that, described method also comprises:
Amended QoS parameter is placed in carrying association request message by described local gateway, and is transmitted to base station or mobile management network element.
4. method according to claim 3, is characterized in that, described mobile management network element is Serving GPRS Support Node SGSN, and described carrying is set up or the process of amendment is that packet data network PDP activation request process or PDP revise request process; Described carrying association request message is RAB RAB assignment request message or wireless access load-bearing allocation response message.
5. method according to claim 3, it is characterized in that, described mobile management network element is Mobility Management Entity MME, described carrying is set up or the process of amendment is PDN connection establishment process, or be attachment flow, or for terminal initiate resource allocation process, or for terminal initiation resource modifying process, or be the loading establishing process that network is initiated, or be bearing modification process; Described carrying association request message is that UE initial context sets up request message, or sets up request message for RAB, or sets up response message for UE initial context, or sets up response message for RAB.
6. a system is set up in the carrying based on this locality access, is applicable to GPRS network or EPC network; It is characterized in that, described system comprises inspection unit, determining unit and amendment unit; Wherein,
Inspection unit, for setting up in carrying or in modification process, checking the message transmitted between mobile management network element and base station;
Can determining unit, for determining shunt business datum according to the information in described message, trigger amendment unit during energy;
Amendment unit, for revising the QoS parameter comprised in described message;
Described amendment unit determines the QoS parameter of shunting business further according to the data transportation requirements of shunting business; According to the QoS parameter of determined shunting business, amendment QoS parameter;
The QoS parameter that UE is signing is also carried, the QoS parameter that described amended QoS parameter is contracted without prejudice to described UE in the message transmitted between mobile management network element and base station.
7. system according to claim 6, is characterized in that, can described determining unit be determined shunt business datum according to the information of carrying in carrier policy and/or the message transmitted between described mobile management network element and base station further.
8. system according to claim 6, is characterized in that, described system also comprises load bearing unit and retransmission unit; Wherein,
Load bearing unit, for the amended QoS parameter of described amendment unit being placed in carrying association request message, is transmitted to base station by retransmission unit.
9. system according to claim 8, is characterized in that, described mobile management network element is SGSN, and described carrying is set up or the process of amendment is that PDP activation request process or PDP revise request process; Described carrying association request message is that RAB assignment request message or RAB assign response message.
10. system according to claim 8, it is characterized in that, described mobile management network element is MME, described carrying is set up or the process of amendment is PDN connection establishment process, or be attachment flow, or for terminal initiate resource allocation process, or for terminal initiation resource modifying process, or be the loading establishing process that network is initiated, or be bearing modification process; Described carrying association request message is that UE initial context sets up request message, or sets up request message for RAB, or sets up response message for UE initial context, or sets up response message for RAB.
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