CN101090559B - Network side user entity selection method - Google Patents

Network side user entity selection method Download PDF

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Publication number
CN101090559B
CN101090559B CN200610082878XA CN200610082878A CN101090559B CN 101090559 B CN101090559 B CN 101090559B CN 200610082878X A CN200610082878X A CN 200610082878XA CN 200610082878 A CN200610082878 A CN 200610082878A CN 101090559 B CN101090559 B CN 101090559B
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subscriber equipment
tracking area
service
entity
information
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CN101090559A (en
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吴问付
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201110412237.7A priority Critical patent/CN102523570B/en
Priority to CN200610082878XA priority patent/CN101090559B/en
Priority to PCT/CN2007/001886 priority patent/WO2007147345A1/en
Publication of CN101090559A publication Critical patent/CN101090559A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/17—Selecting a data network PoA [Point of Attachment]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/52—Network services specially adapted for the location of the user terminal

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

Abstract

This invention discloses a selection method for user entities of network side including: a user device sends a service request to network side control entity, which gets the position information of said user device and selects a user entity of the network side to serve the user device, which provides an available service process method based on the network structure of separation of the control entity and user entity.

Description

A kind of network side user entity selection method
Technical field
The present invention relates to moving communicating field, relate in particular to a kind of network side user entity selection method.
Background technology
Existing GPRS (General Package Radio Service, GPRS)/universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS) network configuration as shown in Figure 1, adopted and the similar structure of second generation mobile communication system, comprise UMTS Terrestrial radio access network (UMTS Territorial Radio Access Network, UTRAN), GSM EDGE Radio Access Network (GSM/EDGE Radio Access Network, GERAN), core net (Core Network, CN) and user terminal (User Equipment, UE).Wherein, GERAN/UTRAN is used to realize all and wireless function associated, and CN handles that all voice calls are connected with data in the GPRS/UMTS system, and is used to realize and the exchange of external network and the function of route.CN from be divided in logic circuit commutative field (Circuit Switched Domain, CS) and packet-switched domain (Packet Switched Domain PS), supports speech and data service respectively.
The CS territory comprises Mobile Switching Center Server (MSC-Server), media gateway (MGW) and Gateway Mobile Switching Center server nodes such as (GMSC-Server).Wherein, MSC-Server is used to transmit the chain of command data in CS territory, realize mobile management, call out functions such as control and authentication ciphering, GMSC-Server is used to realize the calling control of GMSC and the chain of command function that mobility is controlled, and MGW is used to realize the transmission of user face data.
The PS territory comprises service universal grouping wireless business supporting node (SGSN) and ggsn nodes such as (GGSN).Wherein, GGSN mainly is responsible for and external network carries out interface, and simultaneously, GGSN also is responsible for realizing the transmission of user face data.Position and the MSC Server in CS territory of SGSN in the PS territory is similar, and its Core Feature is to realize functions such as routing forwarding, mobile management, session management and user profile storage.
(Home Location Register HLR) is used for storing user subscription information to attaching position register, and this equipment is all used in CS and PS territory.
3GPP is in order to strengthen the competitiveness of future network, studying a kind of brand-new evolution network framework, the Long Term Evolution (LTE) that comprises System Architecture Evolution (SAE) and Access Network, wherein the Access Network of evolution is called E-UTRAN, the packet core network framework of a kind of evolution of the prior art as shown in Figure 2, comprise Mobility Management Entity (Mobility Management Entity, MME), user entity (User PlaneEntity, UPE) and three logical functional entities of the user's face anchor point between the different access systems (Inter Access System Anchor, InterAS Anchor).Wherein, MME is responsible for the mobile management of chain of command, comprises the management of user's context and mobile status, and distributing user temporary identity sign etc. are corresponding to the control plane part of current GPRS/UMTS internal system SGSN; UPE is responsible for initiating paging for downlink data under the idle condition, and IP bearing parameter and the interior routing iinformation of network etc. are preserved in management, corresponding to the datum plane part of current GPRS/UMTS internal system SGSN and GGSN; Inter AS Anchor then serves as the user's face anchor point between different access systems.(Policy andCharging Rule Function PCRF) is used for policy control decision and flow based charging controlled function to the "Policy and Charging Rules Function entity.(Home Subscriber Server HSS) is used for storing user subscription information to home network server.
The realization flow that UE adheres in the regulation evolution block core net in present 3GPP TR 23.882 agreements as shown in Figure 3, comprising:
1, UE selects connecting system and network (Network Discovery and Access SystemSelection);
2, UE sends Attach Request message (Attach Request) to current MME/UPE;
If carry (before) log-on message of old side in 3 Attach Request messages, then current MME/UPE sends message (Send old registration information) is obtained the user to the MME/UPE of old side information;
4, old side MME/UPE sends user profile (Send user information) and gives current MME/UPE;
5, current MME/UPE carries out authentication (Authentication) to UE;
6, current MME/UPE is registered to (Register MME/UPE) among the HSS;
7, delete the information (Delete UE registration information) of UE at old side MME/UPE;
8, HSS confirms the registration (Confirm Registration) of current MME/UPE;
9, current MME/UPE selects an Inter AS Anchor (Selection of IntersystemMobility Anchor GW);
10, Inter AS Anchor uses the distributing IP address of UE to carry out the configuration of IP layer, and the user plane between UE and Inter ASAnchor is established, and default charging and policing rule are used;
11, current MME/UPE provides the QoS of default IP carrying to dispose wireless access network to evolution;
What 12, current MME/UPE accepted UE adheres to request (Attach Accept), and distributes the temporary mark of UE;
13, UE confirms to adhere to successfully (Attach Confirm).
By above flow process as can be seen, user's attachment flow is based on that MME/UPE describes in existing 23.882 agreements on same network entity, so be not described in the problem how MME in user's attaching process selects UPE.If MME/UPE is at same network entity, then the user adhere to or tracking area registration flow processs such as (Tracking Area Registration) in MME need to select a UPE to come be this user's service.
In addition, in existing UMTS system, a kind of single tunnel (One Tunnel) mechanism (be that data surface is directly handled in the UMTS system, and need not to handle by SGSN) has been proposed between UTRAN and GGSN, under this One Tunnel, need carry out GGSN and select.
Summary of the invention
The invention provides a kind of network side user entity selection method, realize improving and replenishing prior art.
The inventive method comprises:
A, subscriber equipment are initiated service request to network controls face entity;
B, described chain of command entity obtain the positional information of described subscriber equipment, and select a network side user entity to be this subscriber equipment service according to described positional information.
According to said method of the present invention, preserve the positional information and the corresponding relation that the network side user entity of service can be provided of subscriber equipment in advance at network side;
Among the described step B, after described chain of command entity obtains the positional information of subscriber equipment, inquire about described corresponding relation, the network side user entity of selecting a correspondence is this subscriber equipment service.
Described corresponding relation is kept in the network controls face entity or in any functional entity of network side.
The corresponding relation of described positional information and described user entity is:
The corresponding described user entity that service can be provided of positional information; Perhaps
The corresponding a plurality of described user entities that service can be provided of positional information.
When positional information is corresponding a plurality of when the described user entity of service can be provided, select one of them user entity according to the load sharing principle and be this subscriber equipment service.
According to said method of the present invention, in the described steps A, described subscriber equipment is initiated service request to evolvement network; The evolution Access Network sends the chain of command entity of service request from user to the evolvement network core net, the tracking area information of carrying this subscriber equipment;
Among the described step B, the chain of command entity of described evolvement network core net obtains the tracking area information at subscriber equipment place from described business request information, the tracking area information that inquiry is preserved and the corresponding relation of evolvement network core net user entity are selected an evolvement network core net user entity corresponding with this subscriber equipment place tracking area and are this subscriber equipment service.
According to said method of the present invention, described subscriber equipment initiates to adhere to request, tracing section updating request or handoff request to evolvement network.
According to said method of the present invention, in the described steps A, described subscriber equipment is initiated service request to the service universal grouping wireless business supporting node SGSN of universal mobile telecommunications system UMTS;
Among the described step B, described SGSN obtains the route district information at this subscriber equipment place from user's context, route district information that inquiry is preserved and the corresponding relation of ggsn GGSN are selected a GGSN corresponding with this route district, subscriber equipment place and are this subscriber equipment service.
According to said method of the present invention, in the described steps A, described subscriber equipment initiates to activate the PDP Context request to the SGSN of UMTS.
Beneficial effect of the present invention is as follows:
(1) adopts the present invention, when subscriber equipment when network controls face entity is initiated service request, obtain the positional information of this subscriber equipment by the chain of command entity, and select a network side user entity to serve for this subscriber equipment according to this subscriber equipment position.Therefore, the present invention is directed to the network architecture that the chain of command entity separates with user entity, a kind of feasible method for processing business is provided, is improving and replenishing prior art.
(2) adopt the inventive method, can preserve the positional information and the corresponding relation that the network side user entity of service can be provided of subscriber equipment in advance at network side; After the chain of command entity obtained the positional information of subscriber equipment, by the corresponding relation that inquiry is preserved, the network side user entity of selecting a correspondence was this subscriber equipment service.Wherein, positional information can corresponding a plurality of user entities that service can be provided, and select one of them user entity for this subscriber equipment service according to the load sharing principle, not only implementation method is simple, and can realize the user entity load sharing, improve Network disposal ability and performance.
(3) the inventive method can be applied to evolvement network, under MME and UPE separation architecture, provides that a kind of to select corresponding UPE by MME according to subscriber equipment place tracking area be the subscriber equipment service method.
(4) the inventive method can also be applied to the GGSN selection under the One Tunnel mechanism in the existing UMTS system.
Description of drawings
Fig. 1 is the GPRS/UMTS schematic network structure;
Fig. 2 is the packet core network configuration diagram of a kind of evolution in the prior art;
The realization flow figure that Fig. 3 adheres to for UE in the regulation evolution block core net in 3GPP TR 23.882 agreements;
Fig. 4 initiates to adhere to the flow chart of request for the embodiment of the invention one UE at evolvement network;
Fig. 5 is the embodiment of the invention two UE initiate the tracking area registration at evolvement network a flow chart;
Fig. 6 is the embodiment of the invention three UE initiate to activate the PDP Context request in the UMTS system a flow chart.
Embodiment
Network side user entity selection method provided by the invention comprises: user equipment (UE) is initiated service request to network controls face entity; The chain of command entity obtains the positional information of UE, and to select a network side user entity according to this UE positional information be its service.
In actual applications, can preserve the positional information and the corresponding relation that the network side user entity of service can be provided of UE in advance at network side; After the chain of command entity obtains the positional information of subscriber equipment, the corresponding relation that inquiry is preserved, the network side user entity of selecting a correspondence is this UE service.
The positional information of UE and can provide the corresponding relation of the network side user entity of service can be kept in the network controls face entity, or in any functional entity of network side.When positional information is corresponding a plurality of when the user entity of service can be provided, select one of them user entity according to the load sharing principle.
Said method of the present invention is described in detail with specific embodiment below in conjunction with accompanying drawing.
Embodiment one:
UE initiates to adhere to request in evolvement network, select UPE to be this UE service by MME.
Concrete signaling process comprises as shown in Figure 4:
1, UE selects connecting system and network (Network Discovery and Access SystemSelection);
2, UE sends the current MME of Attach Request message (Attach Request) to evolvement network; Tracking area (Trace Area) information that the wireless access network of evolution (Evolved RAN) carries this UE at the Attach Request message that sends UE during to current MME;
If carry (before the UE) log-on message of old side in 3 Attach Request messages, then current MME sends message (Send old registration information) is obtained the user to old side MME information;
4, old side MME sends user profile (Send user information) and gives current MME;
5, at current MME UE is carried out authentication (Authentication);
6, current MME is registered to (Register MME) among the HSS;
7, delete user's information (Delete UE registration information) at old side MME;
8, HSS confirms the registration (Confirm Registration) of current MME;
9, current MME selects the employed UPE of user (Selection of UPE) according to the positional information at user place; Concrete grammar is:
Current MME obtains the tracking area information at UE place from the Attach Request message that Evolved RAN sends, inquire about then this tracking area can by which UPE service (corresponding relation between tracking area and the UPE can be configured or dispose in other network side entity in MME, if the corresponding relation between tracking area and the UPE is configured in other network side entity, then current MME inquiry correspondent entity obtains the pairing UPE of tracking area);
MME selects a UPE to handle user's face of this UE according to Query Result; If a tracking area can be served by a plurality of UPE, then MME selects one of them UPE according to principles such as load sharings; Concrete load sharing principle (for example the UPE of preload minimum etc. is worked as in selection) the present invention do not limit this;
10, set up user plane between UE and UPE, Inter AS Anchor, default charging and policing rule is used (User Plane Route Configuration);
This step comprises:
MME sends and activates request message to the UPE that selects;
UPE selects an Inter AS Anchor;
UPE returns and activates response message to MME;
11, current MME provides the QoS of default IP carrying to dispose wireless access network (Configure IP Bearer QoS) to evolution;
What 12, MME accepted UE adheres to request (Attach Accept), and distributes the temporary mark of UE;
13, UE confirms to adhere to successfully (Attach Confirm).
Be to be example with UPE and Inter AS Anchor for network entity independently in the above-mentioned flow process, but the present invention does not limit other the network architecture, for example UPE and Inter AS Anchor are in a network entity.
Adopt the flow process shown in Figure 4 of the inventive method and the main difference of prior art attachment flow, be embodied in the step 9 of Fig. 4, carry out the selection of UPE by MME.
Embodiment two:
UE initiates the tracking area register requirement in evolvement network, select UPE to be this UE service by MME.
Concrete signaling process comprises as shown in Figure 5:
1, UE sends the MME of tracking area registration message to the evolvement network core net after tracking area variation or period tracking district renewal timer expiry take place; The tracking area information that Evolved RAN carries this UE at the tracking area registration message that sends UE during to MME;
2, MME selects the employed UPE of user (Selectionof UPE) according to the positional information at user place; Concrete grammar is:
MME obtains the tracking area information at UE place from the tracking area registration message that Evolved RAN sends, inquire about then this tracking area can by which UPE service (corresponding relation between tracking area and the UPE can be configured or dispose in other network side entity in MME, if the corresponding relation between tracking area and the UPE is configured in other network side entity, then MME inquiry correspondent entity obtains the pairing UPE of tracking area);
MME selects a UPE to handle user's face of this UE according to Query Result; If a tracking area can be served by a plurality of UPE, then MME selects one of them UPE according to principles such as load sharings; Concrete load sharing principle (for example the UPE of preload minimum etc. is worked as in selection) the present invention do not limit this;
If 3 UPE that select are inconsistent with the UPE in the original user's context, then MME sends and activates context request message to the UPE (being purpose UPE) that selects;
4, MME sends the deletion context request message to source UPE;
5, set up user plane between purpose UPE and the Inter AS Anchor;
6, purpose UPE sends and activates context response information to MME;
7, source UPE sends the deletion context response information to MME;
8, MME confirms user's tracking area registration.
Embodiment three:
UE initiates to activate the PDP Context request in the UMTS system, select GGSN to be this UE service by SGSN.
Determine that according to the positional information of UE user entity that UE uses also can be applied in the UMTS system of prior art in the GGSN selection under the One Tunnel mechanism.Concrete signaling process comprises as shown in Figure 6:
1, UE sends and " activates the PDP Context request information to SGSN;
2, SGSN selects employed GGSN according to the positional information at UE place, and following method is:
SGSN obtains route district (Route Area, RA) information at user place from the user's context that it is preserved;
SGSN inquires about this route district can by which GGSN service (corresponding relation between route district and the GGSN can be configured or dispose in other network entity in SGSN, if the corresponding relation between route district and the GGSN is configured in other network side entity, obtain the pairing GGSN in route district) by SGSN inquiry map network entity;
SGSN selects a GGSN to handle user's face of this UE according to Query Result.If a route district can be served by a plurality of GGSN, then SGSN selects one of them GGSN according to principles such as load sharings, and concrete load sharing principle (for example the GGSN of preload minimum etc. is worked as in selection) the present invention do not limit this;
3, SGSN sends and " creates the PDP Context request information to the GGSN that selects;
4, GGSN returns " creating the PDP Context response " message to SGSN;
5, SGSN assigns flow process (RAB Assignment) to set up RAB by RAB;
6, SGSN sends out and " revises the PDP Context request information and give GGSN;
7, GGSN returns " revising the PDP Context response " message and gives SGSN;
8, SGSN returns " activating PDP Context accepts " message and gives UE.
The present invention discloses under MME and evolution network framework that UPE separates with specific embodiment, and selecting corresponding UPE by MME according to UE place tracking area is the UE service method.
The inventive method also discloses in the existing UMTS system under the One Tunnel mechanism, and selecting GGSN by SGSN is the UE service method.
In sum, adopt the present invention, when subscriber equipment when network controls face entity is initiated service request, obtain the positional information of this subscriber equipment by the chain of command entity, and select a network side user entity to serve for this subscriber equipment according to this subscriber equipment position.Therefore, the present invention is directed to the network architecture that the chain of command entity separates with user entity, a kind of feasible business processing flow is provided, is improving and replenishing prior art.
Adopt the inventive method, can preserve the positional information and the corresponding relation that the network side user entity of service can be provided of subscriber equipment in advance at network side; After the chain of command entity obtained the positional information of subscriber equipment, by the corresponding relation that inquiry is preserved, the network side user entity of selecting a correspondence was this subscriber equipment service.Wherein, positional information can corresponding a plurality of user entities that service can be provided, and select one of them user entity according to the load sharing principle and be this subscriber equipment service, and implementation method is simple, and can realize the user entity load sharing, improve Network disposal ability and performance.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims (3)

1. a network side user entity selection method is characterized in that, comprising:
The tracking area information that the subscriber equipment that A, Mobility Management Entity MME reception wireless access network sends adheres to request and described subscriber equipment, or the tracking area information of tracking area registration message and described subscriber equipment;
B, described MME obtain the tracking area information of described subscriber equipment, and select an evolvement network core net user entity to be this subscriber equipment service according to described tracking area information.
Described step B specifically comprises:
Described MME configuration or other network side entity except that described MME dispose the corresponding relation between described tracking area information and the described evolvement network core net user entity, described corresponding relation is the corresponding described user entity that service can be provided of a tracking area information, perhaps the corresponding a plurality of described user entities that service can be provided of tracking area information;
After described MME obtains the tracking area information of subscriber equipment, inquire about described corresponding relation, the evolvement network core net user entity of selecting a correspondence is this subscriber equipment service;
Further, when tracking area information is corresponding a plurality of when the described user entity of service can be provided, select one of them user entity according to the load sharing principle and be this subscriber equipment service.
2. the method for claim 1 is characterized in that, described MME obtains the tracking area information of described subscriber equipment, and selects an evolvement network core net user entity to be this subscriber equipment service according to described tracking area information, specifically comprises:
Described MME from described adhere to the request or the tracking area registration message obtain the tracking area information at subscriber equipment place, inquire about the corresponding relation between described tracking area information and the described evolvement network core net user entity, select an evolvement network core net user entity corresponding and be this subscriber equipment service with this subscriber equipment place tracking area.
3. a network side user entity selection method is characterized in that, comprising:
A, service universal grouping wireless business supporting node SGSN receive the activation PDP Context request of subscriber equipment;
B, described SGSN obtain the route district information of described subscriber equipment from user's context, and are this subscriber equipment service according to ggsn GGSN of described route district Information Selection;
Described step B specifically comprises:
Described SGSN configuration or other network entity except that described SGSN dispose the corresponding relation of described route district's information and described GGSN, the corresponding relation of described route district's information and described GGSN is the corresponding described GGSN that service can be provided of route district information, the perhaps corresponding a plurality of described GGSN that service can be provided of route district information;
Described SGSN inquires about described corresponding relation after obtaining the route district information of subscriber equipment, and the GGSN that selects a correspondence is this subscriber equipment service;
Further, when a route district information is corresponding a plurality of when the described GGSN of service can be provided, select one of them GGSN according to the load sharing principle and be this subscriber equipment service.
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CN200610082878XA CN101090559B (en) 2006-06-15 2006-06-15 Network side user entity selection method
PCT/CN2007/001886 WO2007147345A1 (en) 2006-06-15 2007-06-15 A method for selecting the user plane entity in network side and the control plane entity

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