CN102595373A

CN102595373A - Method and system capable of achieving mobile management to MTC terminals

Info

Publication number: CN102595373A
Application number: CN2011100083091A
Authority: CN
Inventors: 谢宝国; 李志军
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2011-01-14
Filing date: 2011-01-14
Publication date: 2012-07-18
Anticipated expiration: 2031-01-14
Also published as: WO2012094957A1; CN102595373B

Abstract

The invention discloses a method and a system capable of achieving mobile management to MTC (Machine Type Communication) terminals. The method comprises the steps as follows: a terminal access proxy gateway (MTC GW) replaces MTC terminals and a 3GPP network to carry out mobile management signaling alternation; and the 3GPP network carries out the mobile management to the MTC terminals. Therefore, the 3GPP network can achieve access identification, attachment, position update, wireless access point switching, attachment removing and other mobile management of the MTC terminals, and resources in the 3GPP network, which are occupied by the MTC terminals are saved.

Description

A kind of mobility management method and system are carried out in the MTC terminal

Technical field

The present invention relates to moving communicating field, be meant especially and a kind of mobility management method and system carried out in the MTC terminal.

Background technology

Communication between machine to machine in recent years (M2M, Machine to Machine) business begins to be applied gradually, like application such as logistics system, remote meter reading, Smart Homes.M2M service provider uses existing wireless network, carries out the M2M business like PS networks such as GPRS (GPRS, General Packet Radio service) network, evolved packet system (EPS, Evolved Packet System) networks.With interpersonal communication (H2H, Human to Human) business evident difference property is arranged because of M2M is professional, need carry out necessary optimization, to obtain best network management and network communication quality existing network.

GPRS network is a second generation mobile communications network based on packet switch; Arrived 3-G (Generation Three mobile communication system); GPRS is evolved to UMTS packet switching (UMTS PS, Universal MobileTelecommunication system Packet Switch) territory.Be illustrated in figure 1 as the network architecture of UMTS PS, comprise following network element in this network architecture:

Radio Network System (RNS, Radio Network system) comprises NodeB and RNC among the RNS, NodeB is that the terminal provides the connection of eating dishes without rice or wine; RNC (Radio Network Controller) is a radio network controller, is mainly used in managing radio resources and control NodeB.Be connected through the Iub mouth between RNC and the NodeB, the packet domain core network (Packet Core) of UMTS is inserted at the terminal through RNS;

Serving GPRS Support Node (SGSN, Serving GPRS Support Node) is used to preserve user's route zone position information, is responsible for safety and access control; SGSN links to each other with RNS through the Iu mouth;

Gateway GPRS Support Node (GGSN, Gateway GPRS support Node), the gateway function that is used for being responsible for the IP address of distributing terminals and arrives external network links to each other with SGSN through the Gn mouth in inside;

Attaching position register (HLR, Home Location Register) is used to preserve user's the subscription data and the SGSN address at current place, links to each other with SGSN through the Gr mouth, links to each other with GGSN through the Gc mouth;

Packet data network (PDN, Packet Data Network) is used to the user packet-based service network is provided, and links to each other with GGSN through the Gi mouth.

MTC Server is the M2M application server, and being used to the user provides M2M to use, and links to each other with GGSN through the MTCi interface.

In Fig. 1, Machine Type communication (MTC, Machine Type Communication) UE need be through GPRS network to MTC Server transmitting data information.GPRS network is set up RNC to the tunnel between the GGSN for this transmission, and (GPRS), data message is realized reliable transmission through GTP tunnel for GTP, GPRS Tunneling Protocol based on tunnel protocol in the tunnel.

Along with the development of wireless broad band technology, operation layer is increasingly high to performance requirements such as the bandwidth of transport layer, time delays.For improving its network performance; Reduce networking and operation cost; 3GPP is devoted to the research of System Architecture Evolution (SAE, System Architecture Evolution), and purpose is the Packet Based Network (EPC that makes evolution; Evolved Packet Core) can provide higher transmission rate, shorter transmission delay, optimization to divide into groups; And the mobile management between the access network of UTRAN (E-UTRAN, Evolved UTRAN), UTRAN, WLAN (WLAN, Wireless Local Area Network) and other non-3GPP of support evolution.

The framework of SAE is as shown in Figure 2 at present, wherein, and the wireless access network (E-RAN of evolution; EvolvedRadio Access Network) network element that comprises in is enode b (eNodeB; Evolved NodeB), belong to the RNS system, the access that is used to the user provides Radio Resource; Packet Data Network (PDN, PacketData Network) provides professional network for the user; EPC provides lower delay, and allows more wireless access system to insert, and it comprises following network element:

Mobile management entity (MME, Mobility Management Entity) is the chain of command functional entity; The server of interim storaging user data; Be in charge of and store the context (such as ID, mobility management states, user security parameters etc.) of subscriber equipment (UE, User Equipment), for the user distributes temporary mark; When UE quarters at this tracing area or this network, be responsible for this user is carried out authentication.

Gateway (SGW, Serving Gateway) is a user entity, is responsible for the user face data route and handles, and termination is in the downlink data of the UE of free time (ECM_IDLE) state.The SAE of management and storage UE carries (bearer) context, such as IP bearer service parameter and network internal routing iinformation etc.SGW is the anchor point of 3GPP internal system user plane, and a user can only have a SGW a moment.

Packet data network gateway (PGW, PDN Gateway) is to be responsible for the gateway that UE inserts PDN, and distributing user IP address also is the mobility anchor point of 3GPP and non-3GPP connecting system, and the function of PGW comprises that also strategy is implemented, charging is supported.The user can insert a plurality of PGW at synchronization.Strategy also is arranged in PGW with the enforcement functional entity (PCEF, Policy and Charging Enforcement Function) that charges.

Strategy and charging regulation function entity (PCRF, Policy and Charging Rules Function) are responsible for to PCEF policy control and charging regulation being provided.

Home subscriber server (HSS; Home Subscriber Server); Be responsible for the permanent storage user contracting data, the content of HSS storage comprises the international mobile subscriber identity (IMSI, InternationalMobile Subscriber Identification) of UE and the IP address of PGW.

Physically, SGW and PGW possibly unify, and EPC system user veil unit comprises SGW and PGW.

MTC Server is used to the user provides M2M to use, and links to each other with PGW through the MTCi interface.MTC Server mainly is responsible for information gathering and the storage/work such as processing to MTC equipment, and can carry out necessary management to MTC equipment (MTC UE).

MTC UE and UE are similar, be responsible for to collect the information of some collectors and insert core net through the RAN node, and with MTC Server interaction data.

In Fig. 2, MTC UE need be through the EPS network to MTC Server transmitting data information.The EPS network is set up SGW to the GTP tunnel between the PGW for this transmission, and data message is realized reliable transmission through GTP tunnel.

Fig. 3 is in the prior art, and MTC UE is linked into the EPS network, carries out the mobility management process of network attachment, IP carrying foundation, may further comprise the steps:

Step 101; MTC UE is in order to be linked into the PS network; Comprise GPRS network and EPS network; Initiate attach request to RNS Radio Access Network (comprising eNodeB or RNC), carried the terminal iidentification IMSI of MTCUE, the network accessibility of MTC UE and the information such as indication of request distributing IP therein;

RNS selects a MME/SGSN (MME or SGSN) of service for it for MTC UE, and attach request is forwarded to this MME/SGSN;

Step 102; MME/SGSN sends authorization data request (containing IMSI) to HSS; HSS at first judges the subscription data that IMSI is corresponding, is put on the blacklist if search less than any signatory perhaps IMSI, and then HSS returns the authorization data response and carries error reason to MME/SGSN; If find the corresponding subscription data of IMSI, then HSS returns authorization data response (containing authentication vector) to MME/SGSN;

MME/SGSN carries out the legitimacy of authorizing procedure with verification terminal IMSI, and carries out the safe mode flow process to launch safe connection.

Step 103, MME/SGSN sends position updating request to the HSS of home network, carries the sign of MME and the sign of MTC UE in the message, to inform the current zone of being inserted of MTC UE; HSS finds out contracted user's data of MTC UE according to the sign of MTC UE, sends to MME/SGSN.Mainly comprise in contracted user's data: information such as default APN (APN, Access Point Name), amount of bandwidth;

MME/SGSN receives user data, and whether inspection MTC UE is allowed access to network, returns to HSS and receives user's response; If MME/SGSN finds MTC UE problems such as roaming restriction or access restriction are arranged, MME/SGSN will forbid that MTC UE adheres to, and notice HSS.

Step 104, MME/SGSN selects a PGW/GGSN (PGW or GGSN) according to acquiescence APN for MTC UE, and sends the request of carrying of setting up to it.In this request, carry sign, the MME/SGSN of MTC UE sign, be the information such as indication, default bandwidth information and PGW/GGSN address of MTC UE distributing IP address;

If necessary, PGW/GGSN distributes institute's configured strategy and charging rule decision information to the PCRF request for this MTC UE;

Strategy that PGW/GGSN returns according to PCRF and the PCC of charging rule decision information or static configuration strategy are set up PS and are carried, and return to carry to MME/SGSN and set up response;

Step 105; MME/SGSN preserves bearer context Bearer context; Sending initial context to RNS then is provided with request or adheres to acceptance response; The request that is attached to network that shows MTC UE is accepted, carries APN, PS Bearer ID, PGW/GGSN address and tunnel port-mark (TEID, TunnelEndpoint Identifier);

Step 106, RNS sends RRC to MTC UE and connects reconfiguration request, and open corresponding ports.In RRC connection reconfiguration request, carried: PS Bearer ID, PGW/GGSN address, APN, the IP address of distributing to MTC UE, bandwidth information etc.;

MTC UE sends radio bearer to RNS and reshuffles response, sets up radio bearer;

Step 107, RNS sends the initial context response to MME/SGSN, comprises TEID and the address information of RNS in this message, is used to send downlink data and gives MTC UE.

Step 108, MTC UE sends and adheres to completion message, carries PS Bearer ID, and notice MME/SGSN attaching process is accomplished;

Step 109, MME sends more new bearer request to PGW/GGSN, notifies TEID sign and address into the RNS of MTC UE service, gets through data feedback channel.PGW/GGSN sends more new bearer response to MME/SGSN, the bearer update success.

Fig. 4 is in the prior art, and MTC UE has been linked into the EPS network, when MTC UE occurrence positions moves, carries out the mobility management process that the network site is upgraded, and may further comprise the steps:

Step 201, when MTC UE when the 3GPP network is moved, move to the zone of new MME/SGSN management by the zone of source MME/SGSN management.MTC UE need carry out the position to be upgraded.MTC UE initiates the TAU position updating request to new MME/SGSN, carries the information such as network capabilities, PS Bearer state of sign, the MTC UE of MTC UE;

Step 202; New MME/SGSN obtains the address of source MME/SGSN according to the sign of MTC UE; And send the context request obtain MTC UE to source MME/SGSN; Comprise information such as the sign of MTC UE, new MME/SGSN address therein, request source MME/SGSN issues new MME/SGSN with all contextual informations of MTC UE;

After source MME/SGSN receives the context request of obtaining MTC UE, the contextual information of MTC UE is issued new MME/SGSN;

Step 203, new MME/SGSN is to the request of PGW/GGSN starting update load bearing, and all carryings that this MTC UE sets up are upgraded in request, and PGW/GGSN need upgrade the corresponding bearer context of this MTC UE, as upgrading the TEID of the MME/SGSN in the bearer context.Return more new bearer response to new MME/SGSN then;

Step 204, new MME/SGSN initiates position updating request to HSS, information such as the positional information of carrying MTC UE and new MME/SGSN address, HSS upgrades and preserves.

Step 205, HSS initiates the deletion user data requests to source MME/SGSN, all information of this MTC UE that MME/SGSN deletion in source is preserved;

Step 206, HSS upgrades response to new MME/SGSN home position, and contracted user's data of MTC UE are issued new MME/SGSN, and contracted user's data comprise information such as APN and the bandwidth of MTC UE;

Step 207, new MME/SGSN sends TAU and accepts message to MTC UE, and MTC UE success has been carried out the position renewal on target (newly) network.

Fig. 5 is in the prior art, and MTC UE has been linked into the EPS network, when MTC UE needs off-line, like shutdown, carries out the mobility management process of internet off-line, may further comprise the steps:

Step 301, MTC UE initiates the flow process from the 3GPP internet off-line.MTC UE sends the off-line request to MME/SGSN, comprises the information such as sign of MTC UE in the message;

Step 302, after MME/SGSN receives the off-line request of MTC UE initiation, the relevant contextual information of this MTC UE of MME/SGSN deletion;

Then, MME/SGSN sends the deleting bearing request through SGW to PGW/GGSN, carries the LBI sign, and the PDN of this MTC UE of request deletion connects.SGW and GGSN/PGW connect according to the PDN of this MTC UE of LBI deletion, discharge the bearing resource that distributes.PGW/GGSN returns the deleting load-bearing success response to MME/SGSN.

Step 303, MME/SGSN returns the off-line request to MTC UE and accepts message, and notice MTC UE network carries out off-line operation to it.

Step 304, MME/SGSN sends PS to RNS and connects release command, and notice RNS discharges PS and connects, and RNS discharges wireless related resource.RNS sends the PS connection release message to MTC UE, discharges the interface-free resources with MTC UE.

The M2M business is the application and the service of core, networking with the machine terminal intelligent interaction.It adopts the intelligence machine terminal, through wireless network transmissions information, is the informatization resolve scheme that the client provides, and is used to satisfy the information system requirement of client to aspects such as monitoring, command scheduling, data acquisition and measurements.

The communication object of M2M is a machine, can be the people with machine between communicate by letter, communicate by letter the different intelligent communication between terminals between machine and the server.The MTC equipment of different application has different characteristic, has Hypomobility, PS only attribute like lifter apparatus such as elevators, and keep watch on, alert device except that having Hypomobility, PS only, also have attributes such as low transfer of data and high availability.Therefore need carry out Different system optimization to the MTC equipment of different application, can be effectively to MTC equipment manage, monitor, paying etc.

Use in the influence research to the PS network optimization at M2M, propose a kind of new scene, see Fig. 6.Fig. 6 is the scene of an Internet of Things, and it is described Internet of Things and is divided into three layers: tip layer, network layer and application layer.The tip layer mainly is meant sensor network, and sensor node adopts the short distance interconnection technique, and like the interconnection of bluetooth, ZigBee, WLAN, RFID technology realization local network, short distance can reach hundreds of rice or go up km apart from maximum.Sensor node is used for the data of collecting sensor, and gives MTC Server through the network layer transmission with the transfer of data of gathering, like the application of remote meter reading class.

In Fig. 6, for sensor node, much be the terminal that does not have the 3GPP network communications capability, be called non-MTC terminal, because realize that from cost and technology it is unrealistic that sensor node all disposes the 3GPP communications module.Therefore need have a 3GPP network terminal to insert agent equipment at local tip network, be MTC GW in the drawings, is called the terminal and inserts proxy gateway.Communication capacity between the existing tip network node of MTC GW also has 3GPP network communications capability and terminal and inserts agent capability, and the signaling and the data that need to realize local network are carried out adaptive to the signaling and the data of 3GPP network.

Scene for Fig. 6; In the tip network; The terminal both possibly be not have the 3GPP communication capacity also not have the terminal of 3GPP user identity, and possibly be does not have the 3GPP communication capacity but terminal (non-MTC UE) that the 3GPP user identity is arranged yet, as had SIM but do not have the 3GPP communications module; It also possibly be terminal (MTC UE) with 3GPP communication capacity; When MTC UE roams into the tip network area that this MTC GW manages from other zone,, need be linked into the 3GPP network through this MTC GW at local network according to terminal strategy or network notice.Or some sensor node just has the 3GPP communication capacity, when MTC GW is unusual, can directly be linked into the 3GPP network, realizes the transmission with MTC Server.

Therefore, act on behalf of the scene that the tip network terminal inserts the 3GPP network to MTC GW, prior art does not insert the corresponding mobile management flow process of proxy gateway as terminal in the tip network to MTC GW.As far as the 3GPP network; How at first need to solve the problem with mobile management is inserted at MTC GW each MTC terminal of agency (comprising MTC UE and non-MTC UE); Therefore need the mobile management flow process of existing PS network be optimized, to satisfy the demand of the MTC terminal being carried out access control and mobile management through MTC GW.

Summary of the invention

In view of this; Main purpose of the present invention is to provide a kind of mobility management method and system is carried out in the MTC terminal; To MTC GW in the tip network scene that is linked into the 3GPP network is acted on behalf of at the MTC terminal, can be solved the problem how the 3GPP network carries out mobile management through MTC GW to the MTC terminal of inserting.

In order to achieve the above object, technical scheme of the present invention is achieved in that

The invention provides and a kind of mobility management method is carried out at the MTC terminal, this method comprises:

The terminal is inserted proxy gateway (MTC GW) and is replaced Machine Type communication (MTC) terminal and 3GPP network to carry out the mobile management Signalling exchange; The 3GPP network carries out mobile management through MTC GW to the MTC terminal.

Further, said MTC terminal comprises the MTC UE with 3GPP communication capacity and does not have the 3GPP communication capacity but have the non-MTC UE of 3GPP network user identity.

Further, MTC GW replaces MTC terminal and 3GPP network to carry out before the mobile management Signalling exchange, and this method also comprises:

When said MTC GW is linked into the 3GPP network first; After mobile management network element in the 3GPP network gets access to contracted user's data of said MTC GW, discern said MTC GW according to terminal access agent capability signatory in said contracted user's data and have terminal access agent capability.

Further, when said MTC terminal request was linked into the 3GPP network through MTC GW, said mobile management Signalling exchange and said mobile management specifically comprised:

MTC GW sends to the access request at MTC terminal the mobile management network element of 3GPP network; Said mobile management network element carries out authentication to the MTC terminal, and by the authorization data of said MTC GW transparent transmission MTCUE and mobile management network element and vector;

Said mobile management network element is preserved the HSS that the address of the sign of MTC GW and address, said mobile management network element sends to the MTC terminal attaching related with MTC GW;

Said authentication through and when allowing the MTC terminal to insert the 3GPP network; Said mobile management network element is preserved the contextual information at MTC terminal and is carried out relatedly with MTC GW, and in said mobile management network element, upgrades the linked list at MTC GW and MTC terminal.

Further, after said MTC terminal was linked into the 3GPP network through MTC GW, this method also comprised: said MTC GW is that the default APN (APN) of said MTC terminal unit contractual is set up corresponding packet data network (PDN) connection.

Further, pass through MTC GW when the 3GPP network requests is switched WAP when said MTC terminal, said mobile management Signalling exchange and said mobile management specifically comprise:

MTC GW sends to the renewal WAP request at MTC terminal the mobile management network element of 3GPP network;

Said mobile management network element carries out the contextual information at MTC terminal and MTC GW related, and in said mobile management network element, upgrades the linked list at MTC GW and MTC terminal;

Said mobile management network element discharges the relevant bearing resource in said MTC terminal.

Further, after WAP had been switched through MTC GW in said MTC terminal, this method also comprised: the APN that said MTC GW is said MTC terminal unit contractual sets up corresponding PDN and connects.

Further, when the management area of MTC GW mobile management network element from the source moves to the management area of new mobile management network element, carry out the position when upgrading, said mobile management Signalling exchange and said mobile management specifically comprise:

New mobile management network element obtains contextual information from MTC GW to the source mobile management network element, MTCGW and the linked list at MTC terminal and with the contextual information at the related MTC terminal of MTC GW; And request 3GPP network upgrades all carryings that MTC GW sets up;

Said new mobile management network element sends to HSS with the related MTC terminal attaching of MTC GW with the sign of MTC GW and address and the address of new mobile management network element and upgrades and preserve;

New mobile management network element identification MTC GW has the terminal and inserts agent capability.

Further, when said MTC terminal request through MTC GW during from the 3GPP internet off-line, or said MTC terminal when moving out MTC GW management regional, said mobile management Signalling exchange and said mobile management specifically comprise:

MTC GW sends to the off-line request at MTC terminal the mobile management network element of 3GPP network; The contextual information at said mobile management network element deletion MTC terminal and MTC terminal are related with MTC GW's, and send the off-line notice through MTC GW to the MTC terminal.

Further, behind the off-line of said MTC terminal, this method also comprises:

When the APN that confirms said MTC terminal unit contractual did not have related other MTC terminal, MTC GW initiated PDN to the 3GPP network and connects deexcitation, deletes the corresponding PDN of said APN and connects.

Further, preserved the said MTC terminal information related among the said MTC GW with self.

The present invention also provides a kind of system that mobile management is carried out at the MTC terminal, and this system comprises: proxy gateway (MTC GW) and 3GPP network are inserted in MTC terminal, terminal; Wherein:

Said MTC GW is used to replace said MTC terminal and 3GPP network to carry out the mobile management Signalling exchange;

The 3GPP network is used for through said MTC GW mobile management being carried out at said MTC terminal.

Further; The 3GPP network comprises mobile management network element; Be used for when MTC GW is linked into the 3GPP network first; After getting access to contracted user's data of said MTC GW, discern said MTC GW according to terminal access agent capability signatory in said contracted user's data and have terminal access agent capability;

Said mobile management network element also is used for when the 3GPP network is inserted through MTC GW in the MTC terminal, the contextual information and the MTC GW at MTC terminal is carried out related, and safeguards the linked list at MTC GW and MTC terminal.

Further, said MTC GW also is used for preserving related said MTC terminal information with self, comprises the sign at MTC terminal, the attachment state at MTC terminal and the APN of MTC terminal unit contractual at least.

Among the present invention, the MTC terminal is inserted proxy gateway (MTC GW) through the terminal of tip network and is linked among the 3GPP, discharges the resource that the MTC terminal takies at the 3PGG network, and uses MTC GW to carry out data communication at the bearing resource and the MTC Server of 3GPP network.The 3GPP network can through MTC GW to the MTC terminal realize access authentication, adhere to, a series of mobile management such as position renewal, WAP switching, attachment removal; Practiced thrift the resource that each MTC terminal takies at the 3GPP network; And the 3GPP network can carry out other process optimization through said MTC GW; Like terminal monitoring and off-line triggering etc., has significant optimization effect.

Description of drawings

Fig. 1 is a GPRS network system architecture sketch map in the prior art;

Fig. 2 is an EPS network system architecture sketch map in the prior art;

Fig. 3 is attached to 3GPP PS network and sets up the flow chart that carries for MTC UE in the prior art;

Fig. 4 carries out the flow chart that the position is upgraded for MTC UE in the prior art at 3GPP PS network;

The flow chart that Fig. 5 carries out attachment removal for MTC UE in the prior art from 3GPP PS network;

Fig. 6 is a kind of M2M applied scene figure;

Fig. 7 is the present invention

Fig. 8 is linked into the flow chart of 3GPP network first for MTC GW among the present invention;

Fig. 9 among the present invention in the 3GPP network during off-line, MTC UE inserts, realizes being attached to the flow chart of 3GPP network through MTC GW;

Figure 10 among the present invention in the 3GPP network when online, MTC UE inserts, realizes being attached to the flow chart of 3GPP network through MTC GW;

Figure 11 carries out the flow chart that the position is upgraded for MTC GW among the present invention in the 3GPP network;

Figure 12 realizes the flow chart from the attachment removal of 3GPP network for MTC UE among the present invention through MTC GW.

Embodiment

Below in conjunction with accompanying drawing and specific embodiment technical scheme of the present invention is further set forth in detail.

Among the present invention; According to the M2M application demand; The MTC terminal is acted on behalf of the scene that is linked into the 3GPP network to the MTC GW in the tip network; Solved the 3GPP network and how the problem of mobile management carried out at the MTC terminal of its access through MTC GW, as adhere to, relevant mobile management and access controls such as access point switching, position renewal, attachment removal, satisfied the demand of carrying out mobile management when the MTCGW of MTC terminal through the tip network inserts the 3GPP network.

As shown in Figure 7, the present invention carries out mobility management method to the terminal and comprises:

Step 1, MTC GW replaces MTC terminal and 3GPP network to carry out the mobile management Signalling exchange

Step 2, the 3GPP network carries out mobile management through MTC GW to the MTC terminal.

Wherein, the MTC terminal non-MTC UE that comprises MTC UE and do not have the 3GPP communication capacity with 3GPP communication capacity.

Concrete; MTC GW replaces MTC terminal and 3GPP network to carry out before the mobile management Signalling exchange; This method also comprises: when MTC GW is linked into the 3GPP network first; After mobility management unit (referring to the mobility management unit for MTC GW service) gets access to contracted user's data of MTC GW, insert this MTC GW of agent capability identification according to terminal signatory in contracted user's data and have terminal access agent capability.Specifically explain through subsequent implementation example one.

When the MTC terminal request was linked into the 3GPP network through MTC GW, said mobile management Signalling exchange and said mobile management specifically comprised: MTC GW sends to the access request at MTC terminal the mobile management network element (MME or SGSN) of 3GPP network; Mobile management network element carries out authentication to the MTC terminal, and by the authorization data of MTC GW transparent transmission MTC UE and mobile management network element and vector; Said mobile management network element is preserved the HSS that the address of the sign of MTC GW and address, said mobile management network element sends to the MTC terminal attaching related with MTC GW; Authentication through and when allowing the MTC terminal to insert the 3GPP network, mobile management network element is preserved the contextual information at MTC terminal and is carried out relatedly with MTC GW, and in mobile management network element, upgrades the linked list at MTC GW and MTC terminal.After the MTC terminal is linked into the 3GPP network through MTC GW: when confirming that not APN to the MTC terminal unit contractual sets up PDN and connects, the PDN connection that MTC GW is corresponding for this APN sets up.Specifically explain through subsequent implementation example two.

When MTC GW is passed through when the 3GPP network requests is switched WAP in the MTC terminal; Said mobile management Signalling exchange and said mobile management specifically comprise: MTC GW sends to the renewal WAP request at MTC terminal the mobile management network element of 3GPP network; Mobile management network element carries out the contextual information at MTC terminal and MTC GW related, and in mobile management network element, upgrades the linked list at MTC GW and MTC terminal; Mobile management network element discharges the relevant bearing resource in MTC terminal.After WAP had been switched through MTC GW in the MTC terminal, this method also comprised: when confirming that not APN to the MTC terminal unit contractual sets up PDN and connects, and the PDN connection that MTC GW is corresponding for this APN sets up.Specifically explain through subsequent implementation example three.

Move to the management area of new mobile management network element when the management area of MTC GW mobile management network element from the source; When carrying out the position renewal; Said mobile management Signalling exchange and said mobile management specifically comprise: new mobile management network element obtains contextual information from MTC GW to the source mobile management network element, MTC GW and the linked list at MTC terminal and with the contextual information at the related MTC terminal of MTC GW; And request 3GPP network upgrades all carryings that MTC GW sets up; New mobile management network element sends to HSS with the related MTC terminal attaching of MTC GW with the sign of MTC GW and address and the new address of mobile management network element and upgrades and preserve; New mobile management network element identification MTC GW has the terminal and inserts agent capability.Specifically explain through subsequent implementation example four.

When MTC terminal request when during from the 3GPP internet off-line or MTC terminal moves out MTC GW management regional through MTC GW; Said mobile management Signalling exchange and said mobile management specifically comprise: MTC GW sends to the off-line request at MTC terminal the mobile management network element of 3GPP network; The contextual information at mobile management network element deletion MTC terminal and MTC terminal are related with MTC GW's, and send the off-line notice through MTC GW to the MTC terminal.Behind the off-line of MTC terminal: when confirming not to be associated with other MTC terminal under the APN of MTC terminal unit contractual, MTC GW initiates PDN to the 3GPP network and connects deexcitation, deletes the corresponding PDN of this APN and connects.Specifically explain through subsequent implementation example five.

In addition, also preserved the MTC terminal information related among the MTC GW, comprised the sign at MTC terminal, the attachment state at MTC terminal and the APN of MTC terminal unit contractual at least with self.

Come the concrete method of the present invention of setting forth through concrete embodiment below, wherein the MTC terminal is example with MTCUE, is identical to non-MTC UE with mobility management process to MTC UE.

Embodiment one

As shown in Figure 8, MTC GW both had been the terminal proxy gateway of tip network, also was the terminal of 3GPP network simultaneously.When MTC GW when initially being linked into the 3GPP network; Agent capability is inserted at the terminal that the 3GPP network needs authentication MTCGW to have the tip network; And according to the signatory a plurality of APN of MTC GW; Set up many PDN interface channels, MTC GW can adopt different PDN interface channels like this, and the sensor node (being MTC UE among the figure) of the different MTC Server of ownership is connected with MTC Server.Specifically comprise:

Step 401; MTC GW is in order to be linked into the 3GPP network; Comprise GPRS network and EPS network; Need initiate attach request to RNS Radio Access Network (eNodeB or RNC), wherein carry the sign (being IMSI) of MTCGW, the network accessibility of MTC GW, the indication of asking distributing IP and terminal and inserted information such as agent capability.

RNS selects a MME/SGSN (MME or SGSN) of service for it for MTC GW; And attach request is forwarded to this MME/SGSN, simultaneously the indication of the network accessibility of the sign (IMSI) of MTC GW and MTC GW and request distributing IP and terminal are inserted information such as agent capability and also carried to MME/SGSN.

Step 402; MME/SGSN sends authorization data request (IMSI that comprises MTC GW) to the HSS of MTC GW home network; HSS at first judges contracted user's data that this IMSI is corresponding; Be put on the blacklist if search less than any signatory perhaps IMSI, then HSS returns the authorization data response and carries error reason to MME/SGSN; If find the corresponding subscription data of IMSI, then HSS returns authorization data response (comprising authentication vector) to MME/SGSN;

MME/SGSN carries out the legitimacy of authorizing procedure with the IMSI of checking MTC GW, and carries out the safe mode flow process to launch safe connection.

Step 403, MME/SGSN sends position updating request to the HSS of MTC GW home network, wherein carries the sign of MME/SGSN and the sign (IMSI) of MTC GW, informs the current zone of inserting of MTC GW to HSS; HSS finds out contracted user's data according to the sign (IMSI) of MTC GW, sends to MME/SGSN.Mainly comprise in contracted user's data: information such as APN, bandwidth;

For MTC GW; Because of it is the terminal access agent equipment of tip network; Contracting has tip network node agent capability (promptly referring to terminal access agent capability); Optional, required a plurality of APN and the address of PGW when the tip network node (being sensor node) of also can contracting connects with different MTC Server;

MME/SGSN receives contracted user's data of MTC GW, when inspection MTC GW is allowed access to network, returns acceptance response to HSS; If MME/SGSN finds MTC GW problems such as roaming restriction or access restriction are arranged, MME/SGSN will forbid that MTC GW adheres to, and notice HSS.

Step 404, for MTC GW, MME/SGSN need be according to its contracted user's data; Whether inspection MTC GW has the terminal is inserted agent capability; If have, then to discern MTC GW and have terminal access agent capability, follow-up other MTC terminal can be linked into the 3GPP network through this MTC GW.

Step 405, MME/SGSN selects a PGW/GGSN according to acquiescence APN for MTC GW, and sends the request of carrying of setting up to it.In this request, carry sign (IMSI), the MME/SGSN of MTC GW sign, be the indication of MTC GW distributing IP address, default bandwidth information, PGW/GGSN address etc.;

If necessary, PGW/GGSN can issue the qos policy that disposed for this MTC GW and charging regulation, decision information to PCRF request;

Qos policy that PGW/GGSN returns according to PCRF and the PCC of charge information or static configuration strategy are set up PS and are carried, and return to carry to MME/SGSN and set up response;

Step 406; MME/SGSN preserves bearer context (Bearer context); Sending initial context to RNS then is provided with request or adheres to acceptance response; The request that is attached to network that shows MTC GW is accepted, wherein carries APN, PS carries ID (PS Bearer ID), PGW/GGSN address and TEID;

Step 407, RNS sends RRC to MTC GW and connects reconfiguration request, and open corresponding ports.Carried in the RRC connection reconfiguration request: PS Bearer ID, PGW/GGSN address, APN, the IP address of distributing to MTC GW, bandwidth information etc., MTC GW preserves like important informations such as APN, its own IP address, bandwidth, PS Bearer ID at local terminal;

MTC GW sends the RRC connection to RNS and reshuffles response;

Step 408, RNS sends the initial context response to MME/SGSN, wherein comprises TEID and the address information of RNS, is used to send downlink data and gives MTC GW.

Step 409, MTC GW sends and adheres to completion message, carries PS Bearer ID, and notice MME/SGSN attaching process is accomplished;

Step 410, MME sends more new bearer request to PGW/GGSN, informs to TEID and the address of the RNS of MTC GW service to PGW/GGSN, gets through data feedback channel.PGW/GGSN sends more new bearer response to MME/SGSN, the bearer update success;

Step 411, MTC GW has disposed a plurality of APN as tip network terminal proxy gateway on it, and the sensor node that is used in the tip network connects different MTC Server.Therefore, MTC GW need set up many PDN connections.

MTC GW sends the PDN connection request to MME/SGSN, carries information such as APN, PDN type, PCO parameter, and the indication of PDN type is IPv4 or IPv6 Address requests, and PCO is the information set of terminal and PGW/GGSN transmission transparent data.

Step 412, whether MME/SGSN inspection APN is legal, if legal, then distributes a PS BearerID, sends to PGW/GGSN then and sets up the request of carrying, carries the information such as sign (IMSI), APN, APN-AMBR Maximum Bit Rate, PCO parameter of MTC GW;

PGW/GGSN creates a new data inlet; Setting up a PS corresponding with APN carries; And return carrying to MME/SGSN and set up response, carry the chain of command of corresponding PS Bearer ID, PGW/GGSN address and distribution and the TEID of user plane, information such as PCO parameter;

Step 413; MME/SGSN preserves bearer context; Send to carry to RNS then message is set; Comprise the PDN that MME/SGSN sends to MTC GW in this message and accept message, accept to have carried in the message parameters such as APN, PCO parameter, PS Bearer ID at PDN, show that MTC GW sets up many PDN connection requests and accepted.In carrying TEID, the PDN connection of carrying Bearer qos parameter, PGW/GGSN user plane inlet in the message are set simultaneously and accept information such as indication;

Step 414, RNS sends RRC to MTC GW and connects reconfiguration request, and open corresponding ports, has carried PDN in the RRC connection reconfiguration request and has accepted message to MTC GW;

MTC GW sends the RRC connection to RNS and reshuffles response, sets up corresponding radio bearer;

Step 415, RNS sends to carry to MME/SGSN response is set, and wherein comprises TEID and the address information of RNS, is used to send downlink data and gives MTC GW.

Step 416, MTC GW sends PDN and connects completion message, carries PS Bearer ID, and notice MME/SGSN PDN connects the process of setting up to be accomplished;

Step 417, MME sends more new bearer request to PGW/GGSN, notifies TEID and address into the RNS of MTC GW service, gets through data feedback channel.PGW/GGSN sends more new bearer response to MME/SGSN, the bearer update success.

Embodiment two

As shown in Figure 9, MTC GW has been linked into the 3GPP network as the terminal proxy gateway of tip network.When MTC UE is in off-line state at the 3GPP network, moves to the management area of MTC GW, and set up local the connection with MTC GW at the tip network, MTC UE knows that MTC GW has terminal access agent capability.When MTC UE need be when MTC Server communicates by letter, MTC UE is linked into the 3GPP network through MTC GW, and the 3GPP network is responsible for MTC UE is carried out authentication.The contextual information that MME/SGSN is responsible for MTC GW is related with the contextual information of MTC UE, and safeguards MTC GW and the tabulation of MTC UE corresponding relationship.MTC GW connects according to the signatory APN decision establishment PDN corresponding with this APN of MTC UE.Specifically comprise:

Step 501, the MTC UE of off-line moves to the zone of MTC GW management in the 3GPP network, or the MTC UE of this off-line just was deployed in the zone of MTC GW originally, and the 3GPP network insertion state that this moment, MTC UE kept is an off-line.MTC UE and MTC GW set up local the connection at the tip network, as adopting wireless connect technologies such as ZigBee, bluetooth, WLAN, and accept management and the agency of MTC GW at local network, and MTC GW notifies the UE to MTC with its 3GPP terminal access agent capability.

When MTC UE need set up data communication with MTC Server, MTC UE need initiate to insert request to MTC GW through the local network signaling, and request is linked into the 3GPP network through MTC GW.

Step 502, MTC GW initiates the NAS request to the RNS Radio Access Network, carries the access request (comprise MTC UE request and insert indication, the sign (IMSI) of MTC UE, the information such as network accessibility of MTC UE) of MTC UE therein;

RNS will insert request through the NAS request and be forwarded to the MME/SGSN that MTC GW adheres to, and simultaneously MTC UE request access indication, the sign (IMSI) of MTC UE, the information such as network accessibility of MTC UE also carried to this MME/SGSN;

Step 503, MME/SGSN learns it is that MTC UE is linked into network through MTC GW request from the NAS request, at first MTC UE is carried out authentication.

MME/SGSN sends authorization data request (IMSI that contains MTC UE) to the HSS of this MTC UE ownership; HSS at first judges contracted user's data that IMSI is corresponding; Be put on the blacklist if search less than any signatory perhaps IMSI, then HSS returns the authorization data response and carries error reason to MME/SGSN; If find the corresponding contracted user's data of IMSI, then HSS returns authorization data response message (containing authentication vector) to MME/SGSN;

MME/SGSN carries out the legitimacy of authorizing procedure with verification terminal IMSI to MTC UE, and carries out the safe mode flow process to launch safe connection.

The authorization data of MTC GW transparent transmission MTC UE and MME/SGSN and vector carry out in the authentication process at the 3GPP network through MTC GW at MTC UE, and MTC GW only accomplishes the conversion of signaling protocol of signaling and the local network of 3GPP network.

The transmission security of MTC GW and MTC UE is provided by local tip network, and the transmission security of MTC GW and MME/SGSN is responsible for by the 3GPP network.

Step 504; MME/SGSN sends position updating request to the HSS of MTC UE ownership; The information such as sign of sign and address, MTC UE of carrying address, the MTC GW of MME/SGSN in the message are to inform the current zone of being inserted of MTC UE; HSS preserves the information such as sign and address of address, the MTC GW of MME/SGSN, and finds out contracted user's data of MTC UE according to the sign of MTC UE, sends to MME/SGSN.Mainly comprise information such as APN, bandwidth in contracted user's data;

MME/SGSN receives contracted user's data of MTC UE, and inspection MTC UE is allowed access to network, returns to HSS and accepts user's response; If MME/SGSN finds MTC UE problems such as roaming restriction or access restriction are arranged, MME/SGSN will forbid that this MTC UE adheres to, and notice HSS.

Step 505, MME/SGSN preserves the contextual information of MTC UE, and carries out relatedly with MTC GW, for example, in the contextual information of MTC UE, increases the sign of " access way: MTC GW acts on behalf of access " and MTC GW.In MME/SGSN, safeguard the linked list of MTC GW and MTC UE, for example, the corresponding relation of the IMSI that preserves MTC GW in the linked list and the IMSI of a plurality of related MTC UE, linked list can be placed in the contextual information of MTC GW, or maintenance separately.

Step 506, MME/SGSN returns NAS response to MTC GW, carries MTC UE and adheres to and receive information to MTC GW, wherein comprises the part contracted user's information that MTC UE inserts indication, MTC UE of accepting, like APN etc.

Step 507, MTC GW need initiate 3GPP network insertion response to MTC UE through the local network signaling, and notice MTC UE is linked into the 3GPP network through MTC GW.

Step 508, MTC UE changes to the attachment state through MTC GW with 3GPP network insertion state after receiving the 3GPP network insertion response of MTC GW;

Step 509, relevant informations such as the APN of MTC GW preservation MTC UE, terminal iidentification (IMSI), attachment state, and check and set up the PDN connection for the signatory APN of MTC UE whether, if not, MTC GW need connect for this APN set up PDN.If, because of MTC GW for this APN has set up the PDN connection, the transfer of data of this MTC UE is can be directly just passable on the corresponding PDN link channel of this APN, does not need to set up new PDN again and connects;

Step 510; If MTC GW does not set up the PDN connection to the signatory APN of MTC UE; MTC GW adopts the APN of this MTC UE to send the PDN connection request to MME/SGSN; Carry information such as APN, PDN type, PCO parameter, the indication of PDN type is IPv4 or IPv6 Address requests, and PCO is the information set of terminal and PDN GW/GGSN transmission transparent data.

Step 511; Whether APN is legal in the MME/SGSN inspection, if not in the subscription data of MTC GW, searches the APN CAMEL-Subscription-Information in the MTC UE contextual information of the MTC GW association of arriving; If it is legal; Then distribute a PS Bearer ID,, carry the information such as sign (IMSI), APN, APN-AMBR Maximum Bit Rate, PCO parameter of MTCGW then to the PGW/GGSN request of send to set up carrying;

Step 512; MME/SGSN preserves bearer context; Send to carry to RNS then message is set; Comprise the PDN that MME/SGSN sends to MTC GW in this message and accept message, accept to have carried in the message parameters such as APN, PCO parameter, PS Bearer ID at PDN, show that MTC GW sets up many PDN connection requests and accepted.In carrying TEID, the PDN connection of carrying Bearer qos parameter, PGW/GGSN user plane inlet in the message are set simultaneously and accept information such as indication;

Step 513, RNS sends RRC to MTC GW and connects reconfiguration request, and open corresponding ports.Carried PDN in the RRC connection reconfiguration request and accepted message to MTC GW;

Step 514, RNS sends to carry to MME/SGSN response message is set, and wherein comprises TEID and the address information of RNS, is used to send downlink data and gives MTC GW.

Step 515, MTC GW sends PDN and connects completion message, carries PS Bearer ID, and notice MME/SGSN PDN connects the process of setting up to be accomplished;

Step 516, MME sends more new bearer request to PGW/GGSN, notifies TEID and address into the RNS of MTC GW service, gets through data feedback channel.PGW/GGSN sends more new bearer response to MME/SGSN, the bearer update success.

Embodiment three

Shown in figure 10, MTC GW has been linked into the 3GPP network as the terminal proxy gateway of tip network.When MTC UE is in line states at the 3GPP network, moves to the management area of MTC GW, and set up local the connection at the tip network with MTC GW.MTC UE inserts through home network proxy as preferential according to strategy, need WAP be switched to MTC GW from the 3GPP network.This MTC UE is connected to the MTC GW of local network; And know that MTC GW has the terminal and inserts agent capability; Just switch WAP to the 3GPP network requests through this MTC GW; The 3GPP network carries out this MTC UE and MTC GW related, and is released in the radio bearer resources and the core net bearing resource of 3GPP network.Specifically comprise:

Step 601, online MTC UE moves to the zone of MTC GW management in the 3GPP network, and the 3GPP network insertion state that this moment, MTC UE kept is online.MTC UE and MTC GW set up local the connection at the tip network, as adopting wireless connect technologies such as ZigBee, bluetooth, WLAN, and accept management and the agency of MTC GW at local network, and MTC GW notifies the UE to MTC with its terminal access agent capability.

MTC UE is according to strategy; Insert through home network proxy as preferential; Need WAP be switched to MTC GW from the 3GPP network; MTC UE need initiate to upgrade the WAP request to MTC GW through the local network signaling, and request release is connected with the 3GPP network, changes into through MTC GW and is linked into the 3GPP network.

Step 602, MTC GW initiates the NAS request to the RNS Radio Access Network, comprises the renewal WAP request that MTC UE initiates therein, the sign information such as (IMSI) of carrying MTC UE in the request message;

RNS will ask the renewal WAP request of MTC UE is forwarded to the MME/SGSN that MTC GW adheres to through NAS, and the important informations such as sign with MTC UE also carry to this MME/SGSN simultaneously;

Step 603, MME/SGSN sends position updating request to the HSS of MTC UE ownership, notifies the HSS to MTC UE ownership with the information such as sign of the sign of MTCGW and address, SGSN/MME address, MTC UE, and HSS preserves sign and the address information of MTC GW.

Step 604, MME/SGSN carries out the contextual information of this MTC UE and MTC GW related, for example, in the contextual information of MTC UE, increases the sign of " access way: MTC GW acts on behalf of access " and MTC GW.In MME/SGSN, upgrade the linked list of MTC GW and MTC UE, this MTC UE changes into being acted on behalf of by MTC GW and is linked into the 3GPP network.

Step 605, MME/SGSN discharges the relevant bearing resource of MTCUE, and is concrete: initiate the deleting bearing request to PGW/GGSN, all carryings that the request deletion is set up for this MTC UE.Concrete: SGW and the PGW/GGSN deletion bearer context corresponding with this MTC UE, and discharge the bearing resource that distributes.Return the deleting bearing response to MME/SGSN then;

Step 606, MME/SGSN returns the NAS signaling response to MTC GW, carries MTC UE renewal WAP and receives information to MTC GW, wherein comprises and upgrades the part CAMEL-Subscription-Information that WAP is accepted indication, MTC UE, like information such as APN.

Step 607, MTC GW preserves the relevant information of MTC UE, and returns the response of renewal WAP through the local network signaling to MTC UE, and notice MTC UE has upgraded WAP, and MTC UE can be linked into the 3GPP network through MTC GW.

Step 608; After MTC UE receives the renewal WAP response of MTC GW; The 3GPP network initiatively discharges Radio Resource and wireless connections; Concrete: MME/SGSN sends to RNS and connects release command, and notice RNS discharges the wireless connections of this MTC UE, and RNS discharges the Radio Resource of distributing to this MTC UE.RNS sends the RRC connection release message to MTC UE, discharges the interface-free resources of distributing to this MTC UE.

Perhaps, after MTC UE received the renewal WAP response of MTC GW, notice 3GPP network discharges Radio Resource and wireless connections, and is concrete: MTC UE discharged wireless connections to the RNS request, and RNS discharges wireless connections and Radio Resource, and notice MME/SGSN.

After MTC UE receives the renewal WAP response of MTC GW, when discharging the wireless connections Radio Resource, 3GPP network insertion state changed to through MTC GW insert;

Step 609, the APN whether inspection MTC GW has contracted for MTC UE has set up the PDN connection, if not, MTC GW need connect for this APN set up PDN.If, because of MTC GW for this APN has set up the PDN connection, the transfer of data of this MTC UE is can be directly just passable on the corresponding PDN link channel of this APN, does not need to set up new PDN again and connects;

The signatory APN of MTC UE is set up PDN connect, be step 610～616 that its realization is identical with step 510～516, repeats no more here.

Embodiment four

Shown in figure 11, MTC GW has been linked into the 3GPP network as the terminal proxy gateway of tip network.When MTC GW has taken place to move, move to new MME/SGSN zone.MTC GW need initiate the TAU request; Source MME/SGSN need need issue new MME/SGSN with contextual information, the linked list of the contextual information of MTC GW and related with it MTC UE, and the HSS that MTC GW ownership is issued in sign and the address of new MME/SGSN address, MTC GW upgrades.Proxy gateway is inserted at the terminal that new this MTC GW of MME/SGSN identification is the tip network, safeguards that this MTCGW is related with the agency of MTC UE, and the maintenance association tabulation.

Step 701, when MTC GW when the 3GPP network is moved, move to the zone of new MME/SGSN management by the zone of source MME/SGSN management.MTC GW need carry out the position to be upgraded.MTCGW initiates the TAU position updating request to new MME/SGSN, carries the information such as network capabilities, PS Bearer state of sign, the MTC GW of MTC GW;

Step 702; New MME/SGSN obtains the address of source MME/SGSN; And send the context request obtain MTC GW to source MME/SGSN; Comprise information such as the sign of MTC GW, new MME/SGSN address therein, request source MME/SGSN issues new MME/SGSN with all contextual informations of MTC GW;

After source MME/SGSN receives the context request of obtaining MTC GW, the linked list of contextual information, MTC GW and the MTC UE of MTC GW, the contextual information of MTC UE are all issued new MME/SGSN;

Step 703, new MME/SGSN is to the request of PGW/GGSN starting update load bearing, and all carryings that this MTC GW sets up are upgraded in request, and PGW/GGSN need upgrade the corresponding bearer context of this MTC GW, as upgrading the TEID of the MME/SGSN in the bearer context.Return more new bearer response to new MME/SGSN then;

Step 704, new MME/SGSN initiates position updating request to the HSS of MTC GW ownership, carries the positional information of MTC GW and the information such as address of new MME/SGSN, and HSS upgrades and preserves.

Simultaneously, new MME/SGSN initiates position updating request to the HSS of all MTC UE ownership of MTC GW agency, carries the address of MTC GW and the information such as address of new MME/SGSN, and HSS upgrades and preserves.

Step 705, the HSS of MTC GW ownership initiates the deletion user data requests to source MME/SGSN, all information of all information of this MTC GW of source MME/SGSN deletion and related MTC UE;

Step 706, the HSS of MTC GW ownership upgrades response to new MME/SGSN home position, and contracted user's data of MTC GW are issued new MME/SGSN, and contracted user's data comprise the terminal and insert information such as agent capability indication, APN;

Step 707, new MME/SGSN is the terminal access proxy gateway of tip network according to contracted user's information Recognition MTC GW of MTC GW, follow-up needs are safeguarded the linked list of MTC GW and MTC UE.

Step 708, new MME/SGSN sends TAU and accepts message to MTC GW, MTC GW success on objective network, having carried out position renewal.

Embodiment five

Shown in figure 12, MTC GW inserts the agency as the terminal of tip network and has been linked into the 3GPP network, and MTC UE has been linked into the 3GPP network through MTC GW.If MTC UE moves out the zone of MTC GW management; Or MTC UE according to tactful needs from the 3GPP internet off-line; MTC GW just replaces MTC UE to initiate the off-line request of MTC UE to the 3GPP network; The context of this MTC UE of MME/SGSN deletion, and with the incidence relation of MTC GW, and this terminal off-line of notice HSS.Specifically comprise:

Step 801; Be linked in the scene of 3GPP network through MTC GW at MTC UE; According to terminal strategy or configuration, sent data like MTC UE, MTC UE need break off and being connected of 3GPP network; MTC UE need initiate the off-line request to MTC GW through the local network signaling, and this MTC UE of request release is connected with the 3GPP network;

Perhaps, step 802, MTC UE has moved out the zone of MTC GW management, and this moment, MTC GW need replace this MTC UE to initiate the off-line request, and this MTC UE of request release is connected with the 3GPP network.

Step 803, MTC GW sends the NAS request to MME/SGSN, and the off-line request of carrying MTC UE comprises the information such as sign of MTC UE in the off-line request;

Step 804 after MME/SGSN receives the off-line request, is notified the HSS of this MTC UE ownership, and MTC UE has applied for off-line;

Step 805, the contextual information of this MTC UE of MME/SGSN deletion, and related with MTC GW, MTC UE no longer acts on behalf of through this MTC GW;

Step 806, MME/SGSN returns the NAS response to MTC GW, carries the MTC UE notification message of off-line (carrying off-line acceptance or the indication of off-line notice).

Step 807, MTC GW sends the off-line notice through the local network signaling to MTC UE, and notice MTC UE is at the 3GPP internet off-line.

Step 808, MTC UE change 3GPP network state is an off-line.

Whether step 809 is associated with other MTC UE under the APN that the MTC UE of MTC GW inspection application off-line contracts, if also have other MTC UE to use the corresponding PDN of this APN to connect link, MTC GW does not connect deexcitation with regard to not initiating PDN.If there is not other MTC UE to be connected to the 3GPP network under this APN, then MTC GW need initiate PDN connection deexcitation, deletes the corresponding PDN of this APN and connects;

Step 810, MTC GW sends PDN according to the signatory APN of this MTC UE to MME/SGSN and connects the deexcitation request, carries information such as LBI (bearing identification), APN, and LBI is used to identify the default bearing that this PDN connects, and APN is used to discern this PDN and connects.

Step 811, MME/SGSN decision discharge this PDN and connect, and MME/SGSN sends PDN to PGW/GGSN and connects the deletion request, wherein carries LBI, and is concrete: SGW, PGW/GGSN connect according to this PDN of LBI deletion, discharge the bearing resource that distributes.PGW/GGSN returns PDN to MME/SGSN and connects the deletion success response.

Step 812, MME/SGSN sends deexcitation carrying request to RNS, and all carryings under this PDN of request deexcitation connects are carried LBI during deexcitation is carried and asked or APN identifies, all bearing resources under this PDN of RNS deletion connects.

Step 813, RNS sends RRC to MTC GW and connects reconfiguration request, wherein carries the deexcitation bearer context request.The contextual information of all carryings under this PDN of MTC GW deletion connects sends the RRC connection then and reshuffles response to RNS.

Step 814, it is corresponding that RNS returns the deexcitation carrying to MME/SGSN, confirms deexcitation carrying completion;

Step 815, after deexcitation was carried, MTC GW sent the deexcitation carrying through the NAS signaling to RNS and accepts message, and RNS accepts message with this deexcitation carrying and issues MME/SGSN.

In order to realize said method, the present invention also provides a kind of system that mobile management is carried out at the MTC terminal, comprising: MTC terminal, MTC GW and 3GPP network; Wherein:

MTC GW is used to replace MTC terminal and 3GPP network to carry out the mobile management Signalling exchange; The 3GPP network is used for through MTC GW mobile management being carried out at the MTC terminal.

Comprise mobile management network element in the 3GPP network; Be used for when MTC GW is linked into the 3GPP network first; After getting access to contracted user's data of MTC GW, insert agent capability identification MTC GW according to terminal signatory in contracted user's data and have terminal access agent capability;

Mobile management network element also is used for when the 3GPP network is inserted through MTC GW in the MTC terminal, the contextual information and the MTC GW at MTC terminal is carried out related, and safeguards the linked list at MTC GW and MTC terminal.

MTC GW also is used to preserve the MTC terminal information related with self, comprises the sign at MTC terminal, the attachment state at MTC terminal and the APN of MTC terminal unit contractual at least.

The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.

Claims

1. one kind is carried out mobility management method to the MTC terminal, it is characterized in that this method comprises:

2. according to claim 1 is said mobility management method is carried out at the MTC terminal, it is characterized in that, said MTC terminal comprises the MTC UE with 3GPP communication capacity and does not have the 3GPP communication capacity but have the non-MTC UE of 3GPP network user identity.

3. according to claim 1 is said mobility management method is carried out at the MTC terminal, it is characterized in that, MTC GW replaces MTC terminal and 3GPP network to carry out before the mobile management Signalling exchange, and this method also comprises:

4. according to claim 3 is said mobility management method is carried out at the MTC terminal, it is characterized in that, when said MTC terminal request was linked into the 3GPP network through MTC GW, said mobile management Signalling exchange and said mobile management specifically comprised:

5. according to claim 4 is said mobility management method is carried out at the MTC terminal; It is characterized in that; After said MTC terminal was linked into the 3GPP network through MTC GW, this method also comprised: said MTC GW is that the default APN (APN) of said MTC terminal unit contractual is set up corresponding packet data network (PDN) connection.

6. according to claim 3 is said mobility management method is carried out at the MTC terminal; It is characterized in that; Pass through MTC GW when the 3GPP network requests is switched WAP when said MTC terminal, said mobile management Signalling exchange and said mobile management specifically comprise:

7. according to claim 6 is said mobility management method is carried out at the MTC terminal; It is characterized in that; After WAP had been switched through MTC GW in said MTC terminal, this method also comprised: the APN that said MTC GW is said MTC terminal unit contractual sets up corresponding PDN and connects.

8. according to claim 3 is said mobility management method is carried out at the MTC terminal; It is characterized in that; Move to the management area of new mobile management network element when the management area of MTC GW mobile management network element from the source; When carrying out the position renewal, said mobile management Signalling exchange and said mobile management specifically comprise:

9. according to claim 3 is said mobility management method is carried out at the MTC terminal; It is characterized in that; When said MTC terminal request through MTC GW during from the 3GPP internet off-line, or said MTC terminal when moving out MTC GW management regional; Said mobile management Signalling exchange and said mobile management specifically comprise:

10. according to claim 9 is said mobility management method is carried out at the MTC terminal, it is characterized in that, behind the off-line of said MTC terminal, this method also comprises:

11. said mobility management method is carried out at the MTC terminal according to arbitrary in the claim 1 to 10, it is characterized in that:

Preserved the said MTC terminal information related among the said MTC GW with self.

12. the system that mobile management is carried out at the MTC terminal is characterized in that, this system comprises: proxy gateway (MTC GW) and 3GPP network are inserted in MTC terminal, terminal; Wherein:

13. the system according to mobile management is carried out at the said MTC of claim 12 terminal is characterized in that, said MTC terminal comprises the MTC UE with 3GPP communication capacity and does not have the 3GPP communication capacity but have the non-MTC UE of 3GPP network user identity.

14. the system that carries out mobile management according to the said MTC of claim 13 terminal; It is characterized in that; The 3GPP network comprises mobile management network element; Be used for when MTC GW is linked into the 3GPP network first, get access to contracted user's data of said MTC GW after, insert agent capability according to terminal signatory in said contracted user's data and discern said MTC GW and have the terminal and insert agent capability;

15. the system that carries out mobile management in the terminal according to arbitrary said MTC in the claim 12 to 14; It is characterized in that; Said MTC GW also is used for preserving related said MTC terminal information with self, comprises the sign at MTC terminal, the attachment state at MTC terminal and the APN of MTC terminal unit contractual at least.