CN103796249A - Method for unloading flow of regional service core network in femtocell system - Google Patents
Method for unloading flow of regional service core network in femtocell system Download PDFInfo
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Abstract
The invention discloses a method for unloading flow of a regional service core network in a femtocell system. The method aims to reduce the flow of the core network. The method comprises the steps that 1) a user initiates a service request to a femtocell, and the femtocell judges the service type according to request information; 2) the user initiates an Internet data service request, and a reliable network element of the core network decides to carry out Internet data service core network flow division or not; 3) the user initiates a regional service request, the reliable network element of the core network judges the fact that the current network environment can meet regional service needs according to the request information and current network environment information, and the regional service data of the user cannot pass through the core network; 4) the user initiates the regional service request, the reliable network element of the core network judges the fact that the current network environment cannot meet the regional service needs according to the request information and the current network environment information, and the regional service data of the user can pass through the core network; 5) the user initiates a non-regional service request, and the non-regional service request is borne by a gateway of the core network.
Description
Technical field
The present invention relates to a kind of method of family base station system flow unloading, or rather, the present invention relates to the method for area business core net flow unloading in a kind of family base station system.
Background technology
Evolved packet system (EPS, Evolved Packet System) by core net (EPC, Evolved Packet Core), base station (eNode B) and subscriber equipment (UE) 3 part compositions.Wherein: core network signalling processing section is called Mobility Management Entity (MME, Mobile Management Entity), and data processing section is called gateway (S-GW); Access Network part is responsible in base station, also referred to as Universal Terrestrial Radio Access Network (E-UTRAN, Evolved Universal Terrestrial Radio Access Network); Subscriber equipment refers to subscriber terminal equipment.
Home eNodeB is a kind of small-sized, low-power cellular basestation, is mainly deployed in the indoor place such as family and office, uses the needed expense of high rate services for user provides higher service rate and reduces, and realizes the indoor covering of wireless network simultaneously.Home eNodeB has material benefit, convenient, low-power is exported, the feature of plug and play.In evolved packet system (EPS) frame system, Home eNodeB exists two kinds of modes to be connected with core net: the first is that the GPRS support node (SGSN, Serving GPRS Support Node) of Home eNodeB directly and in core net connects; The second is that Home eNodeB is directly connected with the Mobility Management Entity in core net by femto gateway.Interface between Home eNodeB and femto gateway is designated as S1-U, interface between femto gateway and Mobility Management Entity is designated as S1-G interface, interface between Home eNodeB and Mobility Management Entity is designated as S1-MMR interface, and these three interfaces all adopt the signaling process of S1 interface in prior art.In evolved packet system (EPS) network, as the SCTP(Stream Control Transmission Protocol between Home eNodeB and Mobility Management Entity) be connected and set up after, Home eNodeB and core net are set up message and are completed the information exchange of base station and core net by S1 interface.
At present, be linked into by Home eNodeB in Internet network of network framework at subscriber equipment (UE), the IP bag that subscriber equipment (UE) sends is by gateway GPRS supporting node (GGSN) (GGSN, Gateway GPRS Support Node) or packet data gateway (PGW, PDN Gateway) send to outside IP network.By at the integrated packet data gateway of family's inside of base station (PGW) network element and gateway (SGW, Serving Gateway) function of network element, be called local packet data gateway (L-PGW, Local PGW) and local service gateway (L-SGW, Local SGW), can realize local IP access (LIPA, Local IP Access).Subscriber equipment (UE) is linked into after Home eNodeB, user level, the IP packet that subscriber equipment (UE) sends is by the local packet data gateway (L-PGW of Home eNodeB, Local PGW) or local GGSN(L-GGSN, Local GGSN) directly send in Internet.Control plane, user service signaling flow process still needs to process by Mobility Management Entity/GPRS support node (MME/SGSN) of core net.
At present, be linked into by macro base station in Internet network of network framework at subscriber equipment (UE), the IP bag that subscriber equipment (UE) sends sends to outside IP network by packet wireless business gateway support node (GGSN) or packet data gateway (PGW, PDN Gateway).Near user, dispose gateway device in distributed mode, as GGSN or PGW, thereby allow user's data to carry out route from the nearer node of geography/logic, realize selectivity IP data distribution (Selected IP Traffic Offload, SIPTO).Subscriber equipment (UE) is linked into after macro base station, user level, and the IP packet that subscriber equipment (UE) sends directly sends in Internet by the nearer gateway device GGSN of macro base station geography/logic or PGW.Control plane, user service signaling flow process still needs to process by the MME/SGSN of core net.
What the data distribution based on local IP access (LIPA) and selectivity IP data distribution (SIPTO) mainly unloaded at present is Internet data service and family and/or the enterprises IP packet that sends to external IP network.But telex network behavior presents probability region on geographical position, Client-initiated communication request service source address and destination address logically and/or physically occur in same local area network (LAN) and/or the nearer regional extent of route distance with greater probability.At present, this partial service, after Home eNodeB, is still carried by core net.
Summary of the invention
Technical problem to be solved by this invention be overcome in prior art, exist in the situation that current network can meet subregion QoS of survice demand, still through core net carrying, cause unnecessary wasting of resources problem, be and reduce core net flow, area business core net flow discharging method in a kind of family base station system is provided.
For solving the problems of the technologies described above, the present invention adopts following technical scheme to realize: in described family base station system, the step of area business core net flow discharging method is as follows:
1. user is to Home eNodeB initiating business request, and Home eNodeB judges this type of service according to service requesting information;
2. user initiates Internet data service request, the reliable network element of core net receives after the Internet data service request of Home eNodeB forwarding, judge according to Internet data service solicited message whether this business meets local IP access or selectivity IP data distribution application conditions, determine whether user level carries out the shunting of Internet data service core net;
3. user's initiated area service request, the reliable network element of core net, according to area business solicited message and current network environmental information, judges that current network environment can meet area business demand, user area business datum will not passed through core net;
4. user's initiated area service request, the reliable network element of core net, according to area business solicited message and current network environmental information, judges that current network environment can not meet area business demand, user area business datum will be passed through core net;
5. user initiates non-area business request, and non-area business carries by core net gateway.
User described in technical scheme is to Home eNodeB initiating business request, and Home eNodeB judges that according to service requesting information the step of this type of service is as follows:
1) definition type of service
(1) when customer service destination address is external IP network, this kind of business is called Internet data service;
(2) all the other business are non-Internet data service;
Non-Internet data service is divided into again area business and non-area business: when customer service source address and destination address logic and/or physically in same local area network (LAN) or route distance when nearer, this kind of business is called area business; When customer service source address and destination address logic and/or physically not in same local area network (LAN) or route distance time far away, this kind of business is called non-area business;
2) user is to Home eNodeB initiating business request, and service request comprises: QoS of survice index, comprise service source address and destination address simultaneously, and described QoS index comprises time delay sensitivity, bandwidth demand, packet loss;
3) Home eNodeB judges this type of service according to the service source address in customer service request and destination address information;
4) customer service request is transmitted to the reliable network element of core net by Home eNodeB.
User described in technical scheme initiates Internet data service request, the reliable network element of core net receives after the Internet data service request of Home eNodeB forwarding, judge according to Internet data service request whether this service request meets LIPA technology or SIPTO technology application conditions, determine whether user level carries out the shunting of Internet data service core net, and concrete steps are as follows:
1) the reliable network element of core net receives the Internet data service request that Home eNodeB forwards, service requesting information comprises Internet data service QoS index, comprise Internet data service source address and destination address, described QoS index comprises time delay sensitivity, bandwidth demand, packet loss simultaneously;
2) the reliable network element of core net receives after the Internet data service request of Home eNodeB forwarding, at control plane, judge that according to Internet data service request this business meets LIPA technology or SIPTO technology application conditions, determine that user plane carries out the shunting of Internet data service core net;
In user level, the Internet data service that user sends directly sends in Internet by L-PGW or the local GGSN of Home eNodeB;
3) the reliable network element of core net receives after the Internet data service request of Home eNodeB forwarding, at control plane, judge that according to Internet data service solicited message this business does not meet LIPA technology or SIPTO technology application conditions, determine that user plane does not carry out the shunting of Internet data service core net;
In user level, the Internet data service that user sends sends in Internet by PGW or the GGSN of core net.
User's initiated area service request described in technical scheme, the reliable network element of core net is according to area business solicited message and current network environmental information, judge that current network environment can meet area business demand, user area business datum will not passed through core net, and concrete steps are as follows:
1) the reliable network element of core net receives the area business request that Home eNodeB forwards, area business request comprises area business QoS index, comprise area business source address and destination address, described QoS index comprises time delay sensitivity, bandwidth demand, packet loss simultaneously.The reliable network element of core net instructs Home eNodeB or Control Server to generate current network environmental information;
2) the reliable network element of core net receives after the area business request that Home eNodeB forwards, at control plane, the reliable network element of core net to source address base station or Control Server and destination address base station or Control Server send the request of current network environmental information;
3) source address base station or Control Server and destination address base station or Control Server receive after the network environment solicited message that above-mentioned reliable network element sends, according to current network environment generation current network environmental information;
Current network environmental information comprises: load of base station situation, base station to the available bandwidth of miscellaneous service and in current network the average delay of miscellaneous service;
4) source address base station or Control Server and destination address base station or Control Server are uploaded to the reliable network element of core net by its place network of network environmental information respectively;
5) the reliable network element of core net is according to customer service solicited message and source address base station or Control Server, destination address base station or Control Server place network of network environmental information, judge that current network environment can meet area business demand, user area business datum will not passed through core net, the unloading of feasible region business core net;
6) up at user plane, user by area business Packet Generation to source Home eNodeB;
7) source Home eNodeB routes to object Home eNodeB by area business packet by its place back haul link;
8) descending at user plane, object Home eNodeB routes to source Home eNodeB by area business packet by its place back haul link;
9) source Home eNodeB by wireless channel by area business Packet Generation to user.
The reliable network element of core net described in technical scheme, according to area business solicited message and current network environmental information, judges that current network environment can not meet area business demand, and user area business datum will be by core net, and concrete steps are as follows:
1) user is to Home eNodeB initiated area service request, Home eNodeB Relay Region service request is to the reliable network element of core net, area business request comprises area business QoS index, comprise area business source address and destination address, described QoS index comprises time delay sensitivity, bandwidth demand, packet loss simultaneously;
2) the reliable network element of core net, according to user area service requesting information and current network environmental information, judges that current network environment does not meet area business demand, and user area business datum will, by core net, not carried out the unloading of area business core net;
3) up at user plane, user by area business Packet Generation to source Home eNodeB;
4) source Home eNodeB arrives area business Packet Generation PGW or the reliable network element of SGSN core net of core net;
5) descending at user plane, the PGW of core net or the reliable network element of SGSN core net by area business Packet Generation to source Home eNodeB;
6) source Home eNodeB by wireless channel by area business Packet Generation to user.
User described in technical scheme initiates non-area business request, and non-area business carries by core net gateway, and concrete steps are as follows:
1) user initiates non-area business request to Home eNodeB, Home eNodeB forwards non-area business request to the reliable network element of core net, non-area business request comprises: non-area business QoS index, comprise non-area business source address and destination address, described QoS index comprises time delay sensitivity, bandwidth demand, packet loss simultaneously;
2) the reliable network element of core net is selected user plane core net carrying gateway according to non-area business solicited message;
3) up at user plane, user by non-area business Packet Generation to source Home eNodeB;
4) source Home eNodeB arrives non-area business Packet Generation PGW or the reliable network element of SGSN core net of core net;
5) descending at user plane, the PGW of core net or the reliable network element of SGSN core net by non-area business Packet Generation to source Home eNodeB;
6) source Home eNodeB by wireless channel by non-area business Packet Generation to user.
Compared with prior art the invention has the beneficial effects as follows:
1. the present invention has reduced core net flow: Home eNodeB is divided different service types according to customer service solicited message, and the reliable network element of core net is according to different business QoS demand and current network environment, determination data flow path direction.Guaranteeing in customer service QoS situation, realizing subregion business core net flow unloading.
2. the present invention has strengthened customer service Quality of experience: in the time of user's initiated area service request, the reliable network element of core net is according to customer service solicited message and source address base station or Control Server, destination address base station or Control Server place network of network environmental information, judge that current network environment can meet business demand, area business data will not passed through core net, reduce area business propagation delay time, reduced the signaling traffic load of core net.Operator can, by resources of core network maximum using, for valuable business provides better service, strengthen customer service Quality of experience.
The present invention for operator based on Home eNodeB develop more area applications provide may: in family base station system of the present invention, the method for area business core net flow unloading meets the development trend of future communications network soft switch, realizes separating of control plane and user plane.When current network environment can meet area business demand, user plane data will not pass through core net, reduce the operation cost of operator's area business, and operator develops more area applications based on Home eNodeB can increase user's viscosity.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated:
Fig. 1 is the flow chart of area business core net flow discharging method in family base station system of the present invention.
Fig. 2 is that in family base station system of the present invention, Home eNodeB differentiated service type forwards customer service request flow chart.
Fig. 3 is that in family base station system of the present invention, the reliable network element of core net obtains area business current network environmental information and judges whether current network environment meets the flow chart of area business demand.
Fig. 4 is the flow chart of area business core net flow discharging method in family base station system of the present invention.
Fig. 5 is that in family base station system of the present invention, area business passes through the flow chart of core net gateway bearing method.
Fig. 6 is that in family base station system of the present invention, non-area business passes through the flow chart of core net gateway bearing method.
Embodiment
Below in conjunction with accompanying drawing, the present invention is explained in detail:
Area business core net flow discharging method in a kind of family base station system, its step is as follows:
1. user is to Home eNodeB initiating business request, and Home eNodeB judges this type of service according to service requesting information
1) definition type of service: when customer service destination address is external IP network, this kind of business is called Internet data service, and all the other business are non-Internet data service.Non-Internet data service is divided into again area business and non-area business.When customer service source address and destination address logic and/or physically in same local area network (LAN) or route distance when nearer, this kind of business is called area business; When customer service source address and destination address logic and/or physically not in same local area network (LAN) or route distance time far away, this kind of business is called non-area business.
2) consult Fig. 2, user is to Home eNodeB initiating business request, and service request comprises: QoS of survice index, comprise service source address and destination address simultaneously, and described QoS index comprises time delay sensitivity, bandwidth demand, packet loss.
Home eNodeB is for being deployed in the indoor place such as family and office, for user provides small-sized, the low-power cellular basestation of indoor access service.Home eNodeB is connected with telecommunications core network by its place Internet back haul link (Internet Backhaul), thereby uses the needed expense of high rate services for user provides higher service rate reduction.
3) Home eNodeB judges this type of service according to the service source address in customer service solicited message and destination address information.
When customer service destination address is external IP network, this kind of business is called Internet data service.When customer service destination address is not external IP network, this kind of business is called non-Internet data service.Non-Internet data service can be divided into again area business and non-area business.When customer service source address and destination address are in logic and/or physically in same local area network (LAN) or route distance when nearer, this kind of business is called area business; When customer service source address and destination address be not in logic and/or physically in same local area network (LAN) or route distance time far away, this kind of business is called non-area business.
4) customer service request is transmitted to the reliable network element of core net by Home eNodeB.
There is information interaction in the reliable network element of core net and Home eNodeB, carries out resource distribution according to user business request information, determines service-user panel data flow path direction.
Reliable network element is mobile management entity, and/or femto gateway, and/or Home eNodeB management system.
2, user initiates Internet data service request, the reliable network element of core net receives after the Internet data service request of Home eNodeB forwarding, judge according to Internet data service solicited message whether this service request meets LIPA technology or SIPTO technology application conditions, determine whether user level carries out the shunting of Internet data service core net.Concrete steps are as follows:
1) the reliable network element of core net receives the Internet data service request that Home eNodeB forwards, service requesting information comprises: Internet data service QoS index, comprise Internet data service source address and destination address, described QoS index comprises time delay sensitivity, bandwidth demand, packet loss simultaneously.
2) the reliable network element of core net receives after the Internet data service request of Home eNodeB forwarding, at control plane, judge that according to Internet data service solicited message this business meets LIPA technology or SIPTO technology application conditions, determine that user plane carries out the shunting of Internet data service core net.
In user level, the Internet data service that user sends is by L-PGW or the local GGSN(L-GGSN of Home eNodeB, Local GGSN) directly send in Internet.
3) the reliable network element of core net receives after the Internet data service request of Home eNodeB forwarding, at control plane, judge that according to Internet data service solicited message this business does not meet LIPA technology or SIPTO technology application conditions, determine that user plane does not carry out the shunting of Internet data service core net.
In user level, the Internet data service that user sends sends in Internet by PGW or the GGSN of core net.
3, user's initiated area service request, the reliable network element of core net, according to area business solicited message and current network environmental information, judges whether current network environment can meet area business demand.Consult Fig. 3, idiographic flow is as follows:
1) the reliable network element of core net receives the area business request that Home eNodeB forwards, area business request comprises: area business QoS index, comprise area business source address and destination address, described QoS index comprises time delay sensitivity, bandwidth demand, packet loss simultaneously.The reliable network element of core net instructs Home eNodeB or Control Server to generate current network environmental information.
2) the reliable network element of core net receives after the area business request that Home eNodeB forwards, at control plane, the reliable network element of core net to source address base station or Control Server and destination address base station or Control Server send the request of current network environmental information.
3) source address base station or Control Server and destination address base station or Control Server receive after the network environment solicited message that above-mentioned reliable network element sends, according to current network environment generation current network environmental information.
Current network environmental information comprises: load of base station situation, base station to the available bandwidth of miscellaneous service and in current network the average delay of miscellaneous service.
4) source address base station or Control Server and destination address base station or Control Server are uploaded to the reliable network element of core net by its place network of network environmental information respectively.
5) the reliable network element of core net, according to customer service solicited message and source address base station or Control Server, destination address base station or Control Server place network of network environmental information, judges whether current network environment can meet area business demand.
4, the reliable network element of core net, according to area business solicited message and current network environmental information, judges that current network environment can meet area business demand, and user area business datum will not passed through core net.Consult Fig. 4, idiographic flow is as follows:
1) user is to Home eNodeB initiated area service request, Home eNodeB Relay Region service request is to the reliable network element of core net, area business request comprises: area business QoS index, comprise area business source address and destination address, described QoS index comprises time delay sensitivity, bandwidth demand, packet loss simultaneously.
2) the reliable network element of core net, according to user area service requesting information and current network environmental information, judges that current network environment can meet area business demand, and user area business datum will not passed through core net, the unloading of feasible region business core net.
3) up at user plane, user by area business Packet Generation to source Home eNodeB.
4) source Home eNodeB routes to object Home eNodeB by area business packet by its place back haul link.
5) descending at user plane, object Home eNodeB routes to source Home eNodeB by area business packet by its place back haul link.
6) source Home eNodeB by wireless channel by area business Packet Generation to user.
5, the reliable network element of core net, according to area business solicited message and current network environmental information, judges that current network environment can not meet area business demand, and user area business datum will be passed through core net.Consult Fig. 5, idiographic flow is as follows:
1) user is to Home eNodeB initiated area service request, Home eNodeB Relay Region service request is to the reliable network element of core net, area business request comprises: area business QoS index, comprise area business source address and destination address, described QoS index comprises time delay sensitivity, bandwidth demand, packet loss simultaneously.
2) the reliable network element of core net, according to customer service solicited message and current network environmental information, judges that current network environment does not meet area business demand, and user area business datum will, by core net, not carried out the unloading of area business core net.
3) up at user plane, user by area business Packet Generation to source Home eNodeB.
4) source Home eNodeB arrives area business Packet Generation PGW or the reliable network element of SGSN core net of core net.
5) descending at user plane, the PGW of core net or the reliable network element of SGSN core net by area business Packet Generation to source Home eNodeB.
6) source Home eNodeB by wireless channel by area business Packet Generation to user.
6, user initiates non-area business request, and non-area business carries by core net gateway.Consult Fig. 6, idiographic flow is as follows:
1) user initiates non-area business request to Home eNodeB, Home eNodeB forwards non-area business request to the reliable network element of core net, non-area business request comprises: non-area business QoS index, comprise non-area business source address and destination address, described QoS index comprises time delay sensitivity, bandwidth demand, packet loss simultaneously.
2) the reliable network element of core net is selected user plane core net carrying gateway according to non-area business solicited message.
3) up at user plane, user by non-area business Packet Generation to source Home eNodeB.
4) source Home eNodeB arrives non-area business Packet Generation PGW or the reliable network element of SGSN core net of core net.
5) descending at user plane, the PGW of core net or the reliable network element of SGSN core net by non-area business Packet Generation to source Home eNodeB.
6) source Home eNodeB by wireless channel by non-area business Packet Generation to user.
Finally should be noted that, above case study on implementation is the unrestricted technical scheme of the present invention in order to explanation only, although the present invention is had been described in detail with reference to above-mentioned case study on implementation, those of ordinary skill in the art is to be understood that, still can the present invention be modified or be replaced on an equal basis, and not depart from the spirit and scope of the present invention.
Claims (6)
1. an area business core net flow discharging method in family base station system, is characterized in that, in described family base station system, the step of area business core net flow discharging method is as follows:
1) user is to Home eNodeB initiating business request, and Home eNodeB judges this type of service according to service requesting information;
2) user initiates Internet data service request, the reliable network element of core net receives after the Internet data service request of Home eNodeB forwarding, judge according to Internet data service solicited message whether this business meets local IP access or selectivity IP data distribution application conditions, determine whether user level carries out the shunting of Internet data service core net;
3) user's initiated area service request, the reliable network element of core net, according to area business solicited message and current network environmental information, judges that current network environment can meet area business demand, user area business datum will not passed through core net;
4) user's initiated area service request, the reliable network element of core net, according to area business solicited message and current network environmental information, judges that current network environment can not meet area business demand, user area business datum will be passed through core net;
5) user initiates non-area business request, and non-area business carries by core net gateway.
2. according to area business core net flow discharging method in family base station system claimed in claim 1, it is characterized in that, described user is to Home eNodeB initiating business request, and Home eNodeB judges that according to service requesting information the step of this type of service is as follows:
1) definition type of service
(1) when customer service destination address is external IP network, this kind of business is called Internet data service;
(2) all the other business are non-Internet data service;
Non-Internet data service is divided into again area business and non-area business: when customer service source address and destination address logic and/or physically in same local area network (LAN) or route distance when nearer, this kind of business is called area business; When customer service source address and destination address logic and/or physically not in same local area network (LAN) or route distance time far away, this kind of business is called non-area business;
2) user is to Home eNodeB initiating business request, and service request comprises: QoS of survice index, comprise service source address and destination address simultaneously, and described QoS index comprises time delay sensitivity, bandwidth demand, packet loss;
3) Home eNodeB judges this type of service according to the service source address in customer service request and destination address information;
4) customer service request is transmitted to the reliable network element of core net by Home eNodeB.
3. according to area business core net flow discharging method in family base station system claimed in claim 1, it is characterized in that, described user initiates Internet data service request, the reliable network element of core net receives after the Internet data service request of Home eNodeB forwarding, judge according to Internet data service request whether this service request meets LIPA technology or SIPTO technology application conditions, determine whether user level carries out the shunting of Internet data service core net, and concrete steps are as follows:
1) the reliable network element of core net receives the Internet data service request that Home eNodeB forwards, service requesting information comprises Internet data service QoS index, comprise Internet data service source address and destination address, described QoS index comprises time delay sensitivity, bandwidth demand, packet loss simultaneously;
2) the reliable network element of core net receives after the Internet data service request of Home eNodeB forwarding, at control plane, judge that according to Internet data service request this business meets LIPA technology or SIPTO technology application conditions, determine that user plane carries out the shunting of Internet data service core net;
In user level, the Internet data service that user sends directly sends in Internet by L-PGW or the local GGSN of Home eNodeB;
3) the reliable network element of core net receives after the Internet data service request of Home eNodeB forwarding, at control plane, judge that according to Internet data service solicited message this business does not meet LIPA technology or SIPTO technology application conditions, determine that user plane does not carry out the shunting of Internet data service core net;
In user level, the Internet data service that user sends sends in Internet by PGW or the GGSN of core net.
4. according to area business core net flow discharging method in family base station system claimed in claim 1, it is characterized in that, described user's initiated area service request, the reliable network element of core net is according to area business request and current network environmental information, judge that current network environment can meet area business demand, user area business datum will not passed through core net, and concrete steps are as follows:
1) the reliable network element of core net receives the area business request that Home eNodeB forwards, area business request comprises area business QoS index, comprise area business source address and destination address simultaneously, described QoS index comprises time delay sensitivity, bandwidth demand, packet loss, and the reliable network element of core net instructs Home eNodeB or Control Server to generate current network environmental information;
2) the reliable network element of core net receives after the area business request that Home eNodeB forwards, at control plane, the reliable network element of core net to source address base station or Control Server and destination address base station or Control Server send the request of current network environmental information;
3) source address base station or Control Server and destination address base station or Control Server receive after the network environment solicited message that above-mentioned reliable network element sends, according to current network environment generation current network environmental information;
Current network environmental information comprises: load of base station situation, base station to the available bandwidth of miscellaneous service and in current network the average delay of miscellaneous service;
4) source address base station or Control Server and destination address base station or Control Server are uploaded to the reliable network element of core net by its place network of network environmental information respectively;
5) the reliable network element of core net is according to customer service solicited message and source address base station or Control Server, destination address base station or Control Server place network of network environmental information, judge that current network environment can meet area business demand, user area business datum will not passed through core net, the unloading of feasible region business core net;
6) up at user plane, user by area business Packet Generation to source Home eNodeB;
7) source Home eNodeB routes to object Home eNodeB by area business packet by its place back haul link;
8) descending at user plane, object Home eNodeB routes to source Home eNodeB by area business packet by its place back haul link;
9) source Home eNodeB by wireless channel by area business Packet Generation to user.
5. according to area business core net flow discharging method in family base station system claimed in claim 1, it is characterized in that, the reliable network element of described core net is according to area business solicited message and current network environmental information, judge that current network environment can not meet area business demand, user area business datum will be by core net, and concrete steps are as follows:
1) user is to Home eNodeB initiated area service request, Home eNodeB Relay Region service request is to the reliable network element of core net, area business request comprises area business QoS index, comprise area business source address and destination address, described QoS index comprises time delay sensitivity, bandwidth demand, packet loss simultaneously;
2) the reliable network element of core net, according to user area service requesting information and current network environmental information, judges that current network environment does not meet area business demand, and user area business datum will, by core net, not carried out the unloading of area business core net;
3) up at user plane, user by area business Packet Generation to source Home eNodeB;
4) source Home eNodeB arrives area business Packet Generation PGW or the reliable network element of SGSN core net of core net;
5) descending at user plane, the PGW of core net or the reliable network element of SGSN core net by area business Packet Generation to source Home eNodeB;
6) source Home eNodeB by wireless channel by area business Packet Generation to user.
6. according to area business core net flow discharging method in family base station system claimed in claim 1, it is characterized in that, described user initiates non-area business request, and non-area business carries by core net gateway, and concrete steps are as follows:
1) user initiates non-area business request to Home eNodeB, Home eNodeB forwards non-area business request to the reliable network element of core net, non-area business request comprises: non-area business QoS index, comprise non-area business source address and destination address, described QoS index comprises time delay sensitivity, bandwidth demand, packet loss simultaneously;
2) the reliable network element of core net is selected user plane core net carrying gateway according to non-area business solicited message;
3) up at user plane, user by non-area business Packet Generation to source Home eNodeB;
4) source Home eNodeB arrives non-area business Packet Generation PGW or the reliable network element of SGSN core net of core net;
5) descending at user plane, the PGW of core net or the reliable network element of SGSN core net by non-area business Packet Generation to source Home eNodeB;
6) source Home eNodeB by wireless channel by non-area business Packet Generation to user.
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