CN102480799A - Wireless communication network and method for informing machine-type communication equipment to be in off-line state - Google Patents
Wireless communication network and method for informing machine-type communication equipment to be in off-line state Download PDFInfo
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Abstract
The invention discloses a method for informing machine-type communication equipment (MTC UE) to be in an off-line state by a wireless communication network, comprising the following steps: the wireless communication network acquires MTC UE subscription information subscribed with accidental data transmission performance; when the network determines that the MTC UE data transmission is ended and determines the MTC UE to be subscribed with the accidental data transmission performance according to the acquired subscription information, the wireless communication network performs off-line operation to the MTC UE. The invention also discloses a wireless communication network. By adopting the scheme in the invention, the wireless communication network can perform the off-line operation to the MTC UE timely when the communication between the MTC UE subscribed with the accidental data transmission performance and a machine-type communication server is ended, so as to release the network resource and reduce the risk of network congestion.
Description
Technical field
The present invention relates to mobile communication technology, relate in particular to the method for a kind of cordless communication network and notice machine class communication equipment (MTC UE, Machine Type Communication Device) off-line thereof.
Background technology
In recent years, the communication between machine to machine (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 cordless communication 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-switched domain (UMTS PS, UniversalMobile Telecommunication system Packet Switch).As shown in Figure 1, comprise following network element in the network architecture of UMTS PS:
Radio Network System (RNS, Radio Network System) comprises NodeB and radio network controller (RNC, Radio Network Controller), and NodeB is that the terminal provides the connection of eating dishes without rice or wine; RNC is mainly used in managing radio resources and control NodeB, is connected through the Iub mouth between RNC and the NodeB, and the packet domain core network (Packet Core) of RNS access UMTS is passed through at the terminal;
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.
In Fig. 1, MTC UE need set up carry at GPRS network, through GPRS network to the MTCServer transmitting data information.
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 EPS is as shown in Figure 2 at present, and wherein, the network element that comprises in the wireless access network of evolution (E-RAN, EvolvedRadio Access Network) is: enode b (eNodeB, Evolved NodeB), and the access that is used to the user provides Radio Resource; PDN 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 (S-GW, 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.S-GW is the anchor point of 3GPP internal system user plane, and a user can only have a S-GW a moment.
Packet data network gateway (P-GW, 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 P-GW comprises that also strategy is implemented, charging is supported.The user can insert a plurality of PGW at synchronization.Strategy also is arranged in P-GW 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;
User-subscribed database (SPR, Subscription Profile Repository) is used to manage signatory strategy and PCC rule;
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, the IP address of P-GW.
Physically, S-GW and P-GW possibly unify, and EPC system user veil unit comprises S-GW and P-GW.
The machine class communication server (MTC Server, Machine Type Communication Server), main information gathering and the storage/work of being responsible for MTC UE such as processing, and can carry out necessary management to MTC UE.
MTC UE, similar with UE, usually be responsible for collecting the information of some collectors and insert core net through the RAN node, and with MTC Server interaction data.
In the prior art, when the change of the CAMEL-Subscription-Information of MTC UE, reason such as cordless communication network is unusual, MTC UE is limited, network need carry out off-line operation (Detach) to the terminal.
Fig. 3 describes in the prior art, and MTC UE has been attached to the EPS network, and network comprises following step to its process of carrying out off-line operation:
Step 101:MTC UE successfully is attached to the EPS network and sets up EPS and carries;
Step 102: when the EPS network carried out off-line operation to MTC UE, the MME of EPS network initiated the off-line request message to MTC UE, carries the off-line type;
Step 103:MME initiates deleting bearing message to S-GW simultaneously, the EPS bearer context information that the S-GW deletion is relevant with this MTC UE; S-GW sends deleting bearing message to P-GW, and all PDN that the P-GW deletion is relevant with this MTC UE connect, and P-GW/S-GW returns the deleting bearing response message to MME then;
Step 104: receive the off-line request of MME transmission as MTC UE after, can initiate the off-line acceptance response at any time and give MME;
Step 105: after MME receives off-line acceptance response and deleting bearing response, just initiate the S1 release message, discharge the signalling path of eNodeB, discharge the wireless signaling passage by eNodeB to MME to eNodeB.
Fig. 4 describes in the prior art, and MTC UE has been attached to GPRS network, and GPRS network comprises following step to its process of carrying out off-line operation:
Step 201:MTC UE successfully is attached to GPRS network and sets up PDP Context and carries;
Step 202: when GPRS network carried out off-line operation to MTC UE, the SGSN of GPRS network initiated the off-line request message to MTC UE, carries the off-line type;
Step 203:SGSN initiates deletion PDP Context request message to GGSN simultaneously, and all PDP Contexts that the GGSN deletion is relevant with this MTC UE connect, and GGSN returns deletion PDP Context response message to SGSN then;
Step 204: receive the off-line request of SGSN transmission as MTC UE after, can initiate the off-line acceptance response at any time and give SGSN;
Step 205: after SGSN receives that off-line acceptance response and deletion PDP Context respond, just initiate PS signaling connection release message, discharge the signalling path of RNS, discharge the wireless signaling passage by RNS to MME to RNS.
Existing 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 UE of different application has different characteristic, has Hypomobility, PS only attribute, accidental transfer of data etc. 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.Therefore need carry out Different system optimization to the MTC UE of different application, can be effectively to MTC UE manage, monitor, paying etc., and farthest effectively utilize Internet resources through the network optimization.
M2M UE has the multifrequency nature combination, and wherein accidental Data Transmission Feature is an one of which important characteristic.The demand of accidental transfer of data mainly solves the M2M UE network of relation optimization problem to signatory accidental Data Transmission Feature; This type of M2M UE is an off-line when flat; When itself and MTC Server need carry out data communication; The data of preserving like M2M UE have arrived the memory range upper limit that store predetermined is used, and M2M UE will initiatively be linked into cordless communication network and MTC Server communicates.After the transfer of data of this M2M UE and MTCServer successfully finished, through the network optimization, cordless communication network needed notice M2M UE off-line in time, to discharge the Internet resources that this M2M UE takies.When this M2M UE has data to upload, just insert once more, start another time transmission course.
In existing GPRS and the LTE network; There are three kinds of modes to carry out off-line operation to M2M UE; First kind of scheme is that M2M UE initiatively initiates off-line operation, and second kind of scheme is that MME/SGSN initiates off-line operation (flow process like Fig. 3 and Fig. 4 is described), and the third scheme is that HSS initiates off-line operation.The scene that M2MUE initiatively initiates mainly is shutdown, and SGSN/MME/HSS is scene such as mainly unusual based on signatory renewal, network, the network congestion of off-line operation M2M UE initiatively.Existing three kinds of modes all are to be directed against when cordless communication network takes place unusually or M2M UE shuts down M2M UE is carried out off-line operation; M2M UE for signatory accidental Data Transmission Feature in the scene of the normal operation of cordless communication network; Also there is not to make it at present after finishing, the technical scheme of in time this M2M UE being carried out off-line operation with MTC Server data communication.
Summary of the invention
In view of this; Main purpose of the present invention is to provide the method for a kind of cordless communication network and notice machine class communication equipment off-line thereof; Realize behind the MTC UE and MTC Server sign off of signatory accidental Data Transmission Feature; Cordless communication network in time carries out off-line operation to this MTC UE, releasing network resources, the risk of minimizing network congestion.
For achieving the above object, technical scheme of the present invention is achieved in that
The method of a kind of cordless communication network notice machine class communication equipment off-line provided by the invention, this method comprises:
Cordless communication network obtains the signatory CAMEL-Subscription-Information that the MTC UE of accidental Data Transmission Feature is arranged;
Confirm MTC UE DTD at cordless communication network, and when confirming that said MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, cordless communication network carries out off-line operation to said MTC UE.
In the such scheme; Said cordless communication network obtains the signatory CAMEL-Subscription-Information that the MTC UE of accidental Data Transmission Feature is arranged; For: the chain of command network element of cordless communication network is attached to the CAMEL-Subscription-Information of the MTC UE of cordless communication network from home domain data server network element download request, the CAMEL-Subscription-Information of said MTC UE comprises the signatory accidental Data Transmission Feature that said MTC UE is arranged; Said chain of command network element comprises the MME of EPS network or the SGSN of GPRS network; Said home domain data server network element comprises the HSS of EPS network or the HLR of GPRS network.
In the such scheme, said cordless communication network is confirmed MTC UE DTD, for: the chain of command network element of cordless communication network is confirmed MTC UE DTD through the signaling connection release message that the wireless side network element sends;
Perhaps; After the chain of command network element of cordless communication network receives the deletion media bearer request message of user plane network element transmission; Discharge said media bearer resource, and after the media bearer that detects said MTC UE is all by deletion, confirm MTC UE DTD; Said media bearer is that specialized media carries or default bearing.
In the such scheme, said chain of command network element receives before the deletion media bearer request message of user plane network element transmission, and this method also comprises: said user plane network element is confirmed the DTD of said media bearer between MTC UE and the MTC Server.
In the such scheme, said user plane network element is confirmed the DTD of said media bearer between MTC UE and the MTC Server, comprising:
If it is idle for a long time that the user plane network element detects said media bearer, just confirm the DTD of this media bearer;
Perhaps, MTC Server with MTC UE DTD after, send the DTD notification message to the user plane network element, after said user plane network element is received the DTD notification message, confirm the DTD of this media bearer;
Perhaps; MTC Server in the end carries the mark of DTD in packet header of end data packet; The user plane network element adopts deep-packet detection to packet; Detect from the packet header of packet whether the DTD mark is arranged,, just confirm the DTD of this media bearer if comprise this mark.
In the such scheme, said wireless side network element comprises: the eNodeB of EPS network or the RNS of GPRS network;
Said user plane network element comprises: the P-GW of EPS network or the GGSN of GPRS network.
In the such scheme, this method further comprises: notify said MTC UE to carry out before the off-line operation, start timer and delay time.
A kind of cordless communication network provided by the invention, this cordless communication network comprises: the chain of command network element is used to obtain the signatory CAMEL-Subscription-Information that the MTC UE of accidental Data Transmission Feature is arranged; At definite MTC UE DTD, and when confirming that said MTC UE is signatory accidental Data Transmission Feature is arranged, said MTC UE is carried out off-line operation according to the CAMEL-Subscription-Information that obtains.
In the such scheme, this cordless communication network further comprises home domain data server network element, is used to provide the CAMEL-Subscription-Information of MTC UE.
In the such scheme, this cordless communication network further comprises the wireless side network element, is used for sending the signaling connection release message to the chain of command network element;
Accordingly, said chain of command network element also is used for confirming MTC UE DTD through the signaling connection release message that the wireless side network element sends.
In the such scheme, this network further comprises the user plane network element, is used for confirming the DTD of said media bearer between MTC UE and the MTCServer, and sends deletion media bearer request message to the chain of command network element;
Accordingly, said chain of command network element, also be used to receive the deletion media bearer request message that the user plane network element sends after, discharge said media bearer resource, and detect said media bearer all by deletion after, confirm MTC UE DTD.
In the such scheme, said chain of command network element further also is used for starting timer and delaying time notifying before said MTC UE carries out off-line operation.
The method of a kind of cordless communication network provided by the invention and notice MTC UE off-line thereof, cordless communication network obtains the signatory CAMEL-Subscription-Information that the MTC UE of accidental Data Transmission Feature is arranged; Confirm MTC UE DTD at cordless communication network, and when confirming that said MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, cordless communication network carries out off-line operation to said MTC UE; So, can realize that cordless communication network in time carries out off-line operation to this MTC UE behind the MTC UE and MTC Server sign off of signatory accidental Data Transmission Feature, releasing network resources, the risk of minimizing network congestion.
Description of drawings
Fig. 1 is the network architecture sketch map of UMTS PS in the prior art;
Fig. 2 is the network architecture sketch map of SAE in the prior art;
Fig. 3 is in the prior art, and MTC UE has been attached to the EPS network, and the EPS network carries out the schematic flow sheet of off-line operation to it;
Fig. 4 is in the prior art, and MTC UE has been attached to GPRS network, and GPRS network carries out the schematic flow sheet of off-line operation to it;
Fig. 5 realizes the schematic flow sheet of the method for network notice MTC UE off-line for the present invention;
Fig. 6 is the structural representation of a kind of network provided by the invention;
Fig. 7 is the schematic flow sheet that the embodiment of the invention one realizes the method for MME notice MTC UE off-line;
Fig. 8 is the schematic flow sheet that the embodiment of the invention two realizes the method for SGSN notice MTC UE off-line;
Fig. 9 is the schematic flow sheet that the embodiment of the invention three realizes the method for MME notice MTC UE off-line;
Figure 10 is the schematic flow sheet that the embodiment of the invention four realizes the method for MME notice MTC UE off-line;
Figure 11 is the schematic flow sheet that the embodiment of the invention five realizes the method for MME notice MTC UE off-line;
Figure 12 is the schematic flow sheet that the embodiment of the invention six realizes the method for SGSN notice MTC UE off-line;
Figure 13 is the schematic flow sheet that the embodiment of the invention seven realizes the method for SGSN notice MTC UE off-line;
Figure 14 is the schematic flow sheet that the embodiment of the invention eight realizes the method for SGSN notice MTC UE off-line.
Embodiment
Basic thought of the present invention is: cordless communication network obtains the signatory CAMEL-Subscription-Information that the MTCUE of accidental Data Transmission Feature is arranged; Confirm MTC UE DTD at cordless communication network, and when confirming that said MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, cordless communication network carries out off-line operation to said MTC UE.
Through accompanying drawing and specific embodiment the present invention is done further detailed description below.
The present invention realizes the method for cordless communication network notice MTC UE off-line, and as shown in Figure 5, this method comprises following step:
Step 301: cordless communication network obtains the signatory CAMEL-Subscription-Information that the MTC UE of accidental Data Transmission Feature is arranged;
Concrete; When MTC UE request is attached to network; The chain of command network element of cordless communication network is downloaded the CAMEL-Subscription-Information of said MTC UE from home domain data server network element, comprising the signatory accidental Data Transmission Feature that said MTC UE is arranged in the CAMEL-Subscription-Information of said MTC UE; Said chain of command network element comprises the MME of EPS network or the SGSN of GPRS network etc.; Said home domain data server network element comprises the HSS of EPS network or the HLR of GPRS network etc.
Step 302: cordless communication network is confirmed MTC UE DTD;
Concrete, the chain of command network element of cordless communication network is confirmed MTC UE DTD through the signaling connection release message that the wireless side network element sends;
Perhaps; After the chain of command network element of cordless communication network receives the deletion media bearer request message of user plane network element transmission; Discharge said media bearer resource, and after the media bearer that detects said MTC UE is all by deletion, confirm MTC UE DTD; Said media bearer both can be that specialized media carries, and also can be default bearing.
Said user plane network element is before sending deletion media bearer request message; Comprise that also said user plane network element confirms the DTD of said media bearer between MTC UE and the MTC Server; Said user plane network element can adopt several data transmission detection mode to detect DTD to the transfer of data of said media bearer between MTC UE and the MTC Server, as:
Adopt the mode of bearer path idle-detection, that is: idle for a long time if the user plane network element detects said media bearer passage, just confirm the DTD on this media bearer;
Perhaps; Adopt the mode of MTC Server to the user plane network element notification data end of transmission; That is: MTCServer with MTC UE DTD after; Send the DTD notification message to the user plane network element, after said user plane network element is received the DTD notification message, confirm the DTD of this media bearer;
Perhaps; Adopt the user plane network element packet to be detected the mode of DTD mark; That is: MTCServer in the end carries the mark of DTD in packet header of end data packet, and the user plane network element adopts deep-packet detection to packet, and whether from the packet header of packet, detect has the DTD mark; If comprise this mark, just confirm the DTD of this media bearer;
In above-mentioned, said wireless side network element comprises: the eNodeB of EPS network or the RNS of GPRS network etc.; Said user plane network element comprises: the P-GW of EPS network or the GGSN of GPRS network etc.
Step 303: cordless communication network confirms according to the CAMEL-Subscription-Information that obtains that said MTC UE is signatory has accidental Data Transmission Feature, then said MTC UE is carried out off-line operation;
Further, this step also comprises: said MTC UE is carried out before the off-line operation, start timer and delay time, at the timer timing then, said MTC UE is carried out off-line operation.
In order to realize said method, the present invention also provides a kind of cordless communication network, and is as shown in Figure 6, and this cordless communication network comprises: chain of command network element 61 is used to obtain the signatory CAMEL-Subscription-Information that the MTC UE of accidental Data Transmission Feature is arranged; At definite MTC UE DTD, and when confirming that said MTC UE is signatory accidental Data Transmission Feature is arranged, said MTC UE is carried out off-line operation according to the CAMEL-Subscription-Information that obtains.
This cordless communication network further comprises home domain data server network element 62, is used to provide the CAMEL-Subscription-Information of MTC UE.
This cordless communication network further comprises wireless side network element 63, is used for sending the signaling connection release message to chain of command network element 61;
Accordingly, said chain of command network element 61 also is used for confirming MTC UE DTD through the signaling connection release message that wireless side network element 63 sends.
Or this cordless communication network further comprises user plane network element 64, is used for confirming the DTD of said media bearer between MTC UE and the MTC Server, and sends deletion media bearer request message to chain of command network element 61;
Said user plane network element 64 is confirmed the DTD of said media bearer between MTC UE and the MTC Server, and the mode of employing comprises: adopt the mode of bearer path idle-detection or adopt MTC Server to the mode of the user plane network element notification data end of transmission or adopt the user plane network element to the mode of packet detection DTD mark etc.;
Accordingly, said chain of command network element 61, also be used to receive the deletion media bearer request message that user plane network element 64 sends after, discharge said media bearer resource, and detect said media bearer all by deletion after, confirm MTC UE DTD.
Said chain of command network element 64 further also is used for starting timer and delaying time notifying before said MTC UE carries out off-line operation, at the timer timing then, said MTC UE is carried out off-line operation.
Specify the implementation procedure and the principle of method of the present invention below in conjunction with specific embodiment.
Embodiment one
In the present embodiment; When MTC UE asked to be attached to the EPS network first, MME downloaded the CAMEL-Subscription-Information of this MTC UE from HSS, and knowing according to said CAMEL-Subscription-Information that this MTC UE is signatory has an accidental Data Transmission Feature; The S1 that MME initiates according to the wireless side network element discharges request and confirms this MTC UE DTD; And after confirming that this MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, this MTC UE is carried out off-line operation, notify this MTC UE off-line.As shown in Figure 7, present embodiment realizes that the method for MME notice MTC UE off-line comprises following step:
Step 401:MTC UE initiates the network attachment request to eNodeB, carries the information such as network accessibility, APN of IMSI, UE therein, and eNodeB is that UE selects a MME, and attach request is forwarded to this MME;
Step 402:MME sends the authorization data request message that comprises IMSI to HSS, and HSS finds corresponding CAMEL-Subscription-Information according to IMSI, and returns the authorization data response message that comprises authentication vector to MME.MME carries out the legitimacy of the IMSI of authorizing procedure checking MTC UE, and carries out the safe mode flow process, to launch safe connection.
Step 403:MME sends position updating request to HSS, and HSS finds out the CAMEL-Subscription-Information of MTC UE according to the sign of MTC UE, sends to MME; MME receives said CAMEL-Subscription-Information, and whether inspection MTCUE is allowed access to network, returns to HSS and receives user's response;
Step 404:MME knows from CAMEL-Subscription-Information that this MTC UE is signatory has an accidental Data Transmission Feature; MME selects P-GW and S-GW according to APN afterwards; Send to S-GW/P-GW then and set up the default bearing request, carry the accidental Data Transmission Feature CAMEL-Subscription-Information of the address information of S-GW/P-GW, default bandwidth information, this MTC UE etc. in the request;
Step 405:P-GW is this MTC UE institute's configured strategy and charging regulation, decision information to PCRF/SPR request;
Further; If the signatory accidental Data Transmission Feature that this MTC UE is arranged of SPR can be downloaded to PCRF in this step, PCRF also can be through PCC rule response message; This characteristic information is issued P-GW, and promptly P-GW also can obtain the signatory information that accidental Data Transmission Feature is arranged of MTC UE from PCRF.
Step 406:P-GW sets up default bearer according to strategy and charging decision information that PCRF returns, and returns carrying to S-GW and set up response, sends the response that default bearing is set up by S-GW to MME;
Step 407:MME sends attachment response to eNodeB, shows that the request that is attached to network of MTC UE is received;
In this step, set up radio bearer between UE and the eNodeB, eNodeB notice MME attaching process is accomplished then, and MME accomplishes attaching process to S-GW new bearer more.
Step 408: when MTC UE and MTC Server need transmit data, according to media delivery type needs, network set up that specialized media carries or directly through default bearing, and MTC UE carries out transfer of data through media bearer or default bearing and MTC Server;
Step 409: after transfer of data between MTC UE and the MTC Server was accomplished, eNodeB sent S1 to MME and discharges request message, and request discharges and is connected with the signaling of MME;
Concrete, after transfer of data between MTC UE and the MTC Server is accomplished, because of wireless link channel free time for a long time; Can cause Radio Link Failure; Wireless side RAN will trigger Idle mechanism, triggers eNodeB and sends S1 release request message to MME, and request discharges and is connected with the signaling of MME; Or MTC UE is behind DTD, initiates RRC to eNodeB and connects the request of release, and eNodeB sends S1 to MME and discharges request message, and request discharges and is connected with the signaling of MME;
Step 410:MME confirms this MTC UE DTD after receiving that S1 discharges request message, returns S1 to eNodeB and discharges response message, discharges the signalling path of eNodeB to MME, discharges the wireless signaling passage by eNodeB;
Step 411:MME confirms according to the CAMEL-Subscription-Information of the MTC UE that obtains that this MTC UE is signatory has accidental Data Transmission Feature, according to carrier policy this MTC UE is carried out off-line operation;
Here, said carrier policy can be: start timer time-delay execution this MTC UE is carried out off-line operation; Or, do not delay time directly to carry out this MTC UE is carried out off-line operation;
Saidly carry out off-line operation; Comprise: MME initiates the off-line request message to MTC UE, carries off-line type and cause value, initiates deleting bearing message to S-GW simultaneously; The EPS bearer context information that the S-GW deletion is relevant with this MTC UE; And to P-GW transmission deleting bearing message, all PDN that the P-GW deletion is relevant with this MTC UE connect, and P-GW/S-GW returns the deleting bearing response message to MME then; Wherein, after MTC UE receives the off-line request that MME sends, can initiate the off-line acceptance response at any time and give MME, confirm MTC UE off-line.
Embodiment two
In the present embodiment; When MTC UE asked to be attached to GPRS network first, SGSN downloaded the CAMEL-Subscription-Information of this MTC UE from HLR, and knowing according to said CAMEL-Subscription-Information that this MTC UE is signatory has an accidental Data Transmission Feature; The PS signaling that SGSN sends according to the wireless side network element connects the request of release and confirms MTC UE DTD; And after confirming that this MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, this MTC UE is carried out off-line operation, notify this MTC UE off-line.As shown in Figure 8, present embodiment realizes that the method for SGSN notice MTC UE off-line comprises following step:
Step 501:MTC UE initiates Attach Request message through RNS to SGSN, carries parameters such as IMSI, and RNS is routed to SGSN with this message;
Step 502:SGSN carries out authentication to the HLR request to IMSI, and HLR downloads the authentication parameter according to IMSI, and SGSN carries out authentication and authentication to MTC UE;
Step 503:SGSN sends position updating request and gives HLR; Carry parameters such as SGSN number and address, IMSI; HLR will download to SGSN with the corresponding CAMEL-Subscription-Information of IMSI; SGSN carries out the access control inspection to MTC UE, and whether inspection MTC UE has region limits or insert restriction, notifies HLR then;
Step 504:SGSN is this MTC UE allocation packets temporarily moved subscriber identification number (P-TMSI; Packet-Temporate Mobile subscriber Identify); To adhere to then and accept message and send to MTCUE, carry the information such as P-TMSI of distributing into this MTC UE;
Step 505:, at first need in network, set up PDP Context and connect if MTC UE need carry out service interaction;
Concrete, if MTC UE need carry out service interaction, MTC UE application carrying out PDP context activation is created GTP and is carried, MTC UE issues SGSN with PDP context activating request, carries information such as PDP type, pdp address, APN.
Step 506:SGSN knows from CAMEL-Subscription-Information that this MTC UE is signatory has an accidental Data Transmission Feature; Find the address of GGSN according to APN; And PDP Context is created GTP tunnel sign (TEID for this reason; Tunnel Endpoint Identifier), send PDP Context request message, the accidental Data Transmission Feature information of carrying said MTC UE in this request message created to GGSN afterwards;
Step 507:GGSN is this MTC UE institute's configured strategy and charging regulation, decision information to PCRF/SPR request;
Further; If the signatory accidental Data Transmission Feature that this MTC UE is arranged of SPR in this step; Can download to PCRF; PCRF also can send to P-GW with this characteristic information through PCC rule response message, and promptly P-GW also can obtain the information of the signatory accidental Data Transmission Feature of MTC UE from PCRF.
Step 508:GGSN sets up PDP Context according to strategy and charging decision information that PCRF returns, and sends the establishment success response that PDP Context is set up to SGSN;
Step 509:SGSN sends PDP Context through RNS to MTC UE and successfully activates response; Set up radio bearer between MTC UE and the RAN; PDP Context is successfully set up, and GGSN sets up from PDP Context and knows the process that this MTC UE is signatory accidental Data Transmission Feature arranged;
Step 510: when MTC UE and MTC Server need transmit data, MTC UE carried out transfer of data through media channel and MTC Server;
Step 511: after transfer of data between MTC UE and the MTC Server was accomplished, RNS sent the PS signaling to SGSN and connects the release request message, and request discharges and is connected with the signaling of SGSN;
Concrete; After transfer of data between MTC UE and the MTC Server is accomplished; Idle for a long time because of the network wireless link channel, can cause Radio Link Failure, wireless side RAN will trigger Idle mechanism; Trigger RNS and send PS signaling connection release request message to SGSN, request discharges and is connected with the signaling of SGSN; Or MTC UE is behind DTD, sends RRC to RNS and connects the request of release, and RNS receives that RRC connects and discharge the request back and send the PS signaling to SGSN and connect and discharge request message that request discharges and is connected with the signaling of SGSN.
Step 512: after SGSN receives that the PS signaling connects the release request message, confirm this MTC UE DTD, return PS signaling connection release response message, discharge the PS signalling path of RNS, and discharge the wireless signaling passage by RNS to SGSN to RNS;
Step 513:SGSN confirms according to the CAMEL-Subscription-Information of the MTC UE that obtains that this MTC UE is signatory has accidental Data Transmission Feature, according to carrier policy this MTC UE is carried out off-line operation;
Here, said carrier policy can be: start timer time-delay execution this MTC UE is carried out off-line operation; Or not delaying time directly, this MTC UE of execution carries out off-line operation;
Said off-line operation; Comprise: SGSN sends the off-line request message to MTC UE, carries off-line type and cause value, sends deletion PDP Context message to GGSN simultaneously; All PDP Contexts that the GGSN deletion is relevant with this MTC UE return deletion PDP Context response message to SGSN then; Wherein, after MTC UE receives the off-line request that SGSN sends, can initiate the off-line acceptance response at any time and give SGSN, confirm MTC UE off-line.
Embodiment three
In the present embodiment; After MTC UE was attached to the EPS network, MME downloaded the CAMEL-Subscription-Information of this MTC UE from HSS, and knowing according to said CAMEL-Subscription-Information that this MTC UE is signatory has an accidental Data Transmission Feature; MTC UE sets up media bearer and MTC Server carries out transfer of data; When media bearer did not have transfer of data to be in Idle state, P-GW started the idle-detection timer, and timer overflows the back specified data end of transmission; The media bearer of this MTC UE of notice MME deletion; MME has deleted according to all media bearers of this MTC UE and has confirmed this MTC UE DTD, and after confirming that this MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, this MTC UE is carried out off-line operation.As shown in Figure 9, present embodiment realizes that the method for MME notice MTC UE off-line comprises following step:
Step 601:MTC UE successfully adheres at the EPS network, and has set up the EPS default bearing, and MME downloads the CAMEL-Subscription-Information of this MTC UE from HSS, and knowing that this MTC UE is signatory has an accidental Data Transmission Feature; P-GW obtains in setting up EPS default bearing process that this MTC UE is signatory to have accidental Data Transmission Feature information;
Step 602: when MTC UE and MTC Server need transmit data, network based media service type of EPS and APN set up specialized media and carry or adopt default bearing as media bearer between MTC UE and MTC Server;
Step 603:MTC UE carries out transfer of data through said media bearer and MTC Server;
Step 604: in the data transmission procedure; P-GW carries out idle-detection to said media bearer; When said media bearer does not have data traffic; P-GW starts the idle-detection timer, if overflowing said media bearer until timer does not still have flow, then P-GW confirms the DTD of MTC UE between said media bearer and MTCServer;
Step 605:P-GW sends the deleting bearing request to MME, notifies said media bearer idle, carries said MTC UE sign and bearing identification;
After step 606:MME receives deleting bearing message, discharge the resource that said media bearer distributes, and return the deleting bearing response message to P-GW, P-GW deletes said media bearer;
Step 607:MME has deleted according to all media bearers of this MTC UE and has confirmed this MTCUE DTD, and after confirming that this MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, this MTC UE is carried out off-line operation;
In this step; A corresponding PDN connects if said MTC UE has only an APN; MME need check that whether all media bearers in the said PDN connection are all deleted, if all media bearers of said MTC UE are all deleted, then confirm this MTC UE DTD; And after confirming that this MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, this MTC UE is carried out off-line operation;
If said MTC UE has a plurality of PDN to connect; A plurality of MTC Server have been connected; Then MME need check whether the media bearer that a plurality of PDN connect is all deleted, if all media bearers of said MTC UE are all deleted, then confirms said MTC UE DTD; And after confirming that said MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, notify this MTC UE to carry out off-line operation;
If MTC UE adopts default bearing to carry out data communication; When the default bearing of all PDN connections has all been deleted; MME confirms said MTC UE DTD; And after confirming that said MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, this MTC UE is carried out off-line operation;
Said off-line operation comprises: MME sends the off-line request message to MTC UE, carries off-line type and cause value, after MTC UE receives the off-line request message that MME sends, can send the off-line acceptance response at any time and give MME; After MME receives the off-line acceptance response, initiate the S1 release message to eNodeB, discharge the signalling path of eNodeB to MME, discharge the wireless signaling passage by eNodeB.
Embodiment four
In the present embodiment; After MTC UE was attached to the EPS network, MME downloaded the CAMEL-Subscription-Information of this MTC UE from HSS, and knowing according to said CAMEL-Subscription-Information that this MTC UE is signatory has an accidental Data Transmission Feature; MTC UE sets up media bearer and MTC Server carries out transfer of data; After the transfer of data of MTC Server end and MTC UE, said MTC Server sends the DTD notice to P-GW, and P-GW is according to the DTD notice specified data end of transmission; And the corresponding PDN of notice MME deletion connects; MME connects to have deleted according to all PDN of this MTC UE and confirms this MTC UE DTD, and after confirming that this MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, this MTC UE is carried out off-line operation.Shown in figure 10, present embodiment realizes that the method for MME notice MTC UE off-line comprises following step:
Step 701:MTC UE successfully adheres at the EPS network, and has set up the EPS default bearing, and MME downloads the CAMEL-Subscription-Information of this MTC UE from HSS, and knowing that this MTC UE is signatory has an accidental Data Transmission Feature; P-GW obtains in setting up EPS default bearing process that this MTC UE is signatory to have accidental Data Transmission Feature information;
Step 702: when MTC UE and MTC Server need transmit data, network based media service type of EPS and APN set up specialized media and carry or adopt default bearing as media bearer between MTC UE and MTC Server;
Step 703:MTC UE carries out transfer of data through said media bearer and MTC Server;
Step 704: after the transfer of data of MTC Server end and MTC UE, MTC Server sends the DTD notice to P-GW, carries parameters such as said MTC UE sign, APN, MTC Server address; P-GW confirms the DTD between MTC UE and the MTC Server according to the DTD notice of receiving;
Step 705:P-GW sends deletion PDN connection request message to MME, notifies said media bearer idle, carries said MTC UE sign and APN parameter etc.;
Step 706:MME discharges this PDN and connects bearing resource down after receiving deletion PDN connection request message, and returns deletion PDN connection response message to P-GW, and P-GW deletes and all carryings under this PDN is connected;
Step 707:MME connects to have deleted according to all PDN of this MTC UE and confirms this MTCUE DTD, and after confirming that this MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, this MTC UE is carried out off-line operation;
In this step; A corresponding PDN connects if this MTC UE has only an APN, and after this PDN connected deletion, MME confirmed this MTC UE DTD; And after confirming that this MTC UE is signatory accidental Data Transmission Feature arranged according to the CAMEL-Subscription-Information that obtains, to the off-line operation of this MTC UE;
If this MTC UE has a plurality of PDN to connect; A plurality of MTC Server have been connected; MME checks whether the media bearer that a plurality of PDN connect is all deleted, if all delete, then confirms this MTC UE DTD; And after confirming that this MTC UE is signatory accidental Data Transmission Feature arranged according to the CAMEL-Subscription-Information that obtains, to the off-line operation of this MTC UE;
Said off-line operation comprises: MME sends the off-line request message to MTC UE, carries off-line type and cause value; Receive the off-line request of MME transmission as MTC UE after, initiate the off-line acceptance response at any time and give MME; After MME receives the off-line acceptance response, initiate the S1 release message to eNodeB, discharge the signalling path of eNodeB to MME, discharge the wireless signaling passage by eNodeB.
Embodiment five
In the present embodiment, after MTC UE was attached to the EPS network, MME downloaded the CAMEL-Subscription-Information of this MTC UE from HSS; Know according to said CAMEL-Subscription-Information that this MTC UE is signatory accidental Data Transmission Feature arranged; MTC UE sets up media bearer and MTC Server carries out transfer of data, when MTC Server finishes the transfer of data with MTC UE, in the end carries a transfer of data end mark in the end data packet packet header; P-GW carries out deep-packet detection to the packet in this media bearer; In detecting packet packet header, carried the DTD mark, P-GW just confirms this media bearer DTD, notifies the MME deletion corresponding media bearer then; MME has deleted according to all media bearers of this MTC UE and has confirmed this MTC UE DTD, and after confirming that this MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, this MTC UE is carried out off-line operation.Shown in figure 11, present embodiment realizes that the method for MME notice MTC UE off-line comprises following step:
Step 801:MTC UE successfully adheres at the EPS network, and sets up the EPS default bearing, and MME downloads the CAMEL-Subscription-Information of this MTC UE from HSS, and knowing that this MTC UE is signatory has an accidental Data Transmission Feature; P-GW obtains in setting up load bearing process that this MTC UE is signatory to have accidental Data Transmission Feature information;
Step 802: when MTC UE and MTC Server need transmit data, network based media service type of EPS and APN set up specialized media and carry or adopt default bearing as media bearer between MTC UE and MTC Server;
Step 803:MTC UE carries out transfer of data through said media bearer and MTC Server, and P-GW carries out deep-packet detection to the packet in the media bearer of this MTC UE;
Step 804: when MTC Server finishes the transfer of data with MTC UE; MTC Server in the end carries the mark of DTD in packet header of end data packet; P-GW passes through deep-packet detection; Detect carry the DTD mark in packet header of packet after, just confirm between MTC UE and the MTCServer DTD at this media bearer;
Step 805:P-GW sends deletion media bearer request message to MME, carries parameters such as this media bearer sign, MTC UE sign, notifies this media bearer idle;
After step 806:MME receives the deleting bearing request message, discharge the resource that this media bearer distributes, and return the deleting bearing response message to P-GW, P-GW deletes this media bearer;
Step 807:MME has deleted according to all media bearers of this MTC UE and has confirmed this MTCUE DTD, and after confirming that this MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, this MTC UE is carried out off-line operation;
In this step; A corresponding PDN connects if said MTC UE has only an APN; MME need check that whether all media bearers in the said PDN connection are all deleted, if all media bearers of said MTC UE are all deleted, then confirm this MTC UE DTD; And after confirming that this MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, this MTC UE is carried out off-line operation;
If said MTC UE has a plurality of PDN to connect; A plurality of MTC Server have been connected; Then MME need check whether the media bearer that a plurality of PDN connect is all deleted, if all media bearers of said MTC UE are all deleted, then confirms said MTC UE DTD; And after confirming that said MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, this MTC UE is carried out off-line operation;
If MTC UE adopts default bearing to carry out data communication; When the default bearing of all PDN connections has all been deleted; MME confirms said MTC UE DTD; And after confirming that said MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, this MTC UE is carried out off-line operation;
Said off-line operation comprises: MME sends the off-line request message to MTC UE, carries off-line type and cause value, after MTC UE receives the off-line request message that MME sends, can send the off-line acceptance response at any time and give MME; After MME receives the off-line acceptance response, initiate the S1 release message to eNodeB, discharge the signalling path of eNodeB to MME, discharge the wireless signaling passage by eNodeB.
Embodiment six
In the present embodiment, MTC UE is attached to GPRS network, and sets up the PDP Context connection and carry out transfer of data with MTCServer; SGSN downloads the CAMEL-Subscription-Information of this MTC UE from HLR, and knowing according to said CAMEL-Subscription-Information that this MTC UE is signatory has an accidental Data Transmission Feature.Do not have transfer of data when PDP Context connects, when being in Idle state, GGSN starts the idle-detection timer, timer overflows the back specified data end of transmission, the PDP Context of this MTC UE of notice SGSN deletion connects; SGSN connects to have deleted according to all PDP Contexts of this MTC UE and confirms this MTC UE DTD, and after confirming that this MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, this MTC UE is carried out off-line operation.Shown in figure 12, present embodiment realizes that the method for SGSN notice MTC UE off-line comprises following step:
Step 901:MTC UE successfully is attached to the GPPS network, and sets up the PDP Context connection; SGSN downloads the CAMEL-Subscription-Information of this MTC UE from HLR, and knowing that this MTC UE is signatory has an accidental Data Transmission Feature; GGSN obtains in setting up the PDP Context connection procedure that this MTC UE is signatory to have accidental Data Transmission Feature information;
Step 902: when MTC UE and MTC Server need transmit data, network based media service type of GPPS and APN set up dedicated PDP context and are connected as media bearer or adopt the PDP Context of setting up first to connect as media bearer between MTC UE and MTC Server;
Step 903:MTC UE carries out transfer of data through said media bearer and MTC Server;
Step 904: in the data transmission procedure; GGSN carries out idle-detection to said media bearer; When this media bearer does not have the quantity flow; GGSN starts the idle-detection timer, if overflowing this media bearer until timer does not still have flow, then GGSN confirms the DTD between MTC UE and the MTC Server;
Step 905:GGSN sends the request of deletion PDP Context to SGSN, and it is idle to notify said PDP Context to connect, and carries said MTC UE sign and PDP Context connection identifier;
Step 906:SGSN discharges said PDP Context and connects the resource that takies after receiving deletion PDP Context request message, and returns deletion PDP Context response message to GGSN, and all PDP Contexts of this MTC UE of GGSN deletion connect;
Step 907:SGSN connects according to all PDP Contexts of this MTC UE and deletes, confirms this MTC UE DTD, and after confirming that this MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, this MTC UE is carried out off-line operation;
In this step, said off-line operation comprises: SGSN initiates the off-line request message to MTC UE, carries off-line type and cause value; Receive the off-line request of SGSN transmission as MTC UE after, initiate the off-line acceptance response at any time and give SGSN; After SGSN receives the off-line acceptance response, initiate PS signaling connection release message to RNS, discharge the PS signalling path of RNS to SGSN, discharge the wireless signaling passage by RNS.
Embodiment seven
In the present embodiment, MTC UE is attached to GPRS network, and sets up the PDP Context connection and carry out transfer of data with MTCServer; SGSN downloads the CAMEL-Subscription-Information of this MTC UE from HLR, and knowing according to said CAMEL-Subscription-Information that this MTC UE is signatory has an accidental Data Transmission Feature.After the transfer of data of MTC Server end and MTCUE, MTC Server is to GGSN transmission DTD notice, and GGSN notifies the specified data end of transmission according to DTD, and notifies SGSN to delete the PDP Context connection; SGSN connects to have deleted according to all PDP Contexts of this MTC UE and confirms this MTC UE DTD, and after confirming that this MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, this MTC UE is carried out off-line operation.Shown in figure 13, present embodiment comprises the following step of method that realizes SGSN notice MTCUE off-line:
Step 1001:MTC UE successfully is attached to GPRS network, and sets up the PDP Context connection; SGSN downloads the CAMEL-Subscription-Information of this MTC UE from HLR, and knowing that this MTC UE is signatory has an accidental Data Transmission Feature; GGSN obtains in setting up the PDP Context connection procedure that this MTC UE is signatory to have accidental Data Transmission Feature information;
Step 1002: when MTC UE and MTC Server need transmit data, GPRS network was connected as media bearer or adopts the PDP Context of setting up first to connect as media bearer setting up dedicated PDP context between MTC UE and the MTC Server according to media service type and APN;
Step 1003:MTC UE carries out transfer of data through said media bearer and MTC Server;
Step 1004: after the transfer of data of MTC Server end and MTC UE, MTC Server sends the DTD notice to GGSN, carries parameters such as this MTC UE sign, APN, MTC Server address; GGSN confirms the DTD between MTC UE and the MTC Server according to the DTD notice of receiving;
Step 1005:GGSN sends deletion PDP Context request message to SGSN, carries parameters such as this PDP Context connection identifier, MTC UE sign, and all PDP Contexts that this MTC UE of request deletion is corresponding connect;
Step 1006:SGSN discharges said PDP Context and connects the bearing resource that takies after receiving deletion PDP Context request message, and returns deletion PDP Context response message to GGSN, and all PDP Contexts of this MTC UE of GGSN deletion connect;
Step 1007:SGSN deletes according to all PDP Contexts connections of this MTC UE; Confirm this MTC UE DTD; And after confirming that this MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, this MTC UE is carried out off-line operation;
In this step, said off-line operation comprises: SGSN initiates the off-line request message to MTC UE, carries off-line type and cause value; Receive the off-line request of SGSN transmission as MTC UE after, initiate the off-line acceptance response at any time and give SGSN; After SGSN receives the off-line acceptance response, initiate PS signaling connection release message to RNS, discharge the PS signalling path of RNS to SGSN, discharge the wireless signaling passage by RNS.
Embodiment eight
In the present embodiment, MTC UE is attached to GPRS network, and sets up the PDP Context connection and carry out transfer of data with MTCServer; SGSN downloads the CAMEL-Subscription-Information of this MTC UE from HLR, and knowing according to said CAMEL-Subscription-Information that this MTC UE is signatory has an accidental Data Transmission Feature.When MTC Server finishes the transfer of data with MTCUE; In the end carry a transfer of data end mark in the end data packet packet header; GGSN carries out deep-packet detection to this PDP Context data in connection bag; In detecting packet packet header, carried the DTD mark, GGSN notifies the corresponding PDP Context of SGSN deletion to connect with regard to the specified data end of transmission then; SGSN connects according to all PDP Contexts of this MTC UE and deletes, and confirms this MTC UE DTD, and after confirming that this MTCUE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, this MTC UE is carried out off-line operation.Shown in figure 14, present embodiment realizes that the method for SGSN notice MTC UE off-line comprises following step:
Step 1101:MTC UE successfully is attached to the GPPS network, and sets up a PDP Context connection; SGSN downloads the CAMEL-Subscription-Information of this MTC UE from HLR, and knowing that this MTC UE is signatory has an accidental Data Transmission Feature; GGSN obtains in building load bearing process that this MTC UE is signatory to have accidental Data Transmission Feature information;
Step 1102: when MTC UE and MTC Server need transmit data, network based media service type of GPPS and APN set up dedicated PDP context and are connected as media bearer or adopt the PDP Context of setting up first to connect as media bearer between MTC UE and MTC Server;
Step 1103:MTC UE carries out transfer of data through said media bearer and MTC Server, and GGSN carries out deep-packet detection to the packet in the media bearer of this MTC UE;
Step 1104: when MTC Server finishes the transfer of data with MTC UE; MTC Server in the end carries the mark of DTD in packet header of end data packet; GGSN passes through deep-packet detection; Detect carry the DTD mark in packet header of packet after, just confirm between MTC UE and the MTCServer DTD at this media bearer;
Step 1105:GGSN sends the request of deletion PDP Context to SGSN, carries this MTC UE sign and PDP Context connection identifier parameter;
Step 1106:SGSN discharges said PDP Context and connects the resource that takies after receiving deletion PDP Context request message, and returns deletion PDP Context response message to GGSN, and all PDP Contexts of this MTC UE of GGSN deletion connect;
Step 1107:SGSN deletes according to all PDP Contexts connections of this MTC UE; Confirm this MTC UE DTD; And after confirming that this MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, this MTC UE is carried out off-line operation;
In this step, said off-line operation comprises: SGSN initiates the off-line request message to MTC UE, carries off-line type and cause value; Receive the off-line request of SGSN transmission as MTC UE after, initiate the off-line acceptance response at any time and give SGSN; After SGSN receives the off-line acceptance response, initiate PS signaling connection release message to RNS, discharge the PS signalling path of RNS to SGSN, discharge the wireless signaling passage by RNS.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. the method for cordless communication network notice machine class communication equipment off-line is characterized in that this method comprises:
Cordless communication network obtains the signatory CAMEL-Subscription-Information that the machine class communication equipment (MTC UE) of accidental Data Transmission Feature is arranged;
Confirm MTC UE DTD at cordless communication network, and when confirming that said MTC UE is signatory accidental Data Transmission Feature is arranged according to the CAMEL-Subscription-Information that obtains, cordless communication network carries out off-line operation to said MTC UE.
2. method according to claim 1; It is characterized in that; Said cordless communication network obtains the signatory CAMEL-Subscription-Information that the MTC UE of accidental Data Transmission Feature is arranged; For: the chain of command network element of cordless communication network is attached to the CAMEL-Subscription-Information of the MTC UE of cordless communication network from home domain data server network element download request, the CAMEL-Subscription-Information of said MTC UE comprises the signatory accidental Data Transmission Feature that said MTC UE is arranged; Said chain of command network element comprises the mobile management entity (MME) of evolved packet system (EPS) network or the Serving GPRS Support Node (SGSN) of GPRS (GPRS) network; Said home domain data server network element comprises the home subscriber server (HSS) of EPS network or the attaching position register (HLR) of GPRS network.
3. method according to claim 1 and 2; It is characterized in that; Said cordless communication network is confirmed MTC UE DTD, for: the chain of command network element of cordless communication network is confirmed MTC UE DTD through the signaling connection release message that the wireless side network element sends;
Perhaps; After the chain of command network element of cordless communication network receives the deletion media bearer request message of user plane network element transmission; Discharge said media bearer resource, and after the media bearer that detects said MTC UE is all by deletion, confirm MTC UE DTD; Said media bearer is that specialized media carries or default bearing.
4. method according to claim 3; It is characterized in that; Said chain of command network element receives before the deletion media bearer request message of user plane network element transmission, and this method also comprises: said user plane network element is confirmed the DTD of said media bearer between the MTC UE and the machine class communication server (MTC Server).
5. method according to claim 4 is characterized in that, said user plane network element is confirmed the DTD of said media bearer between MTC UE and the MTC Server, comprising:
If it is idle for a long time that the user plane network element detects said media bearer, just confirm the DTD of this media bearer;
Perhaps, MTC Server with MTC UE DTD after, send the DTD notification message to the user plane network element, after said user plane network element is received the DTD notification message, confirm the DTD of this media bearer;
Perhaps; MTC Server in the end carries the mark of DTD in packet header of end data packet; The user plane network element adopts deep-packet detection to packet; Detect from the packet header of packet whether the DTD mark is arranged,, just confirm the DTD of this media bearer if comprise this mark.
6. method according to claim 5 is characterized in that, said wireless side network element comprises: the Radio Network System (RNS) of enode b of EPS network (eNodeB) or GPRS network;
Said user plane network element comprises: the Gateway GPRS Support Node (GGSN) of EPS grouping of network data network gateway (P-GW) or GPRS network.
7. method according to claim 1 is characterized in that, this method further comprises: notify said MTC UE to carry out before the off-line operation, start timer and delay time.
8. a cordless communication network is characterized in that, this cordless communication network comprises: the chain of command network element is used to obtain the signatory CAMEL-Subscription-Information that the MTC UE of accidental Data Transmission Feature is arranged; At definite MTC UE DTD, and when confirming that said MTC UE is signatory accidental Data Transmission Feature is arranged, said MTC UE is carried out off-line operation according to the CAMEL-Subscription-Information that obtains.
9. cordless communication network according to claim 8 is characterized in that, this cordless communication network further comprises home domain data server network element, is used to provide the CAMEL-Subscription-Information of MTC UE.
10. cordless communication network according to claim 8 is characterized in that this cordless communication network further comprises the wireless side network element, is used for sending the signaling connection release message to the chain of command network element;
Accordingly, said chain of command network element also is used for confirming MTC UE DTD through the signaling connection release message that the wireless side network element sends.
11. cordless communication network according to claim 8; It is characterized in that; This network further comprises the user plane network element, is used for confirming the DTD of said media bearer between MTC UE and the MTC Server, and sends deletion media bearer request message to the chain of command network element;
Accordingly, said chain of command network element, also be used to receive the deletion media bearer request message that the user plane network element sends after, discharge said media bearer resource, and detect said media bearer all by deletion after, confirm MTC UE DTD.
12. cordless communication network according to claim 8 is characterized in that, said chain of command network element further also is used for starting timer and delaying time notifying before said MTC UE carries out off-line operation.
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| CN102480799B (en) | 2015-12-16 |
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