CN102480799B - A kind of method of cordless communication network and notice equipment for machine type communication off-line thereof - Google Patents

A kind of method of cordless communication network and notice equipment for machine type communication off-line thereof Download PDF

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CN102480799B
CN102480799B CN201010558394.4A CN201010558394A CN102480799B CN 102480799 B CN102480799 B CN 102480799B CN 201010558394 A CN201010558394 A CN 201010558394A CN 102480799 B CN102480799 B CN 102480799B
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mtcue
network
dtd
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cordless communication
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CN102480799A (en
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谢宝国
李勉
李志军
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ZTE Corp
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ZTE Corp
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Abstract

Do you the invention discloses a kind of cordless communication network notice equipment for machine type communication (MTC? UE) method of off-line, does cordless communication network obtain the signing MTC having sporadic data transmission characteristic? the CAMEL-Subscription-Information of UE; MTC is determined at network? UE DTD, and determine described MTC according to the CAMEL-Subscription-Information obtained? is cordless communication network to described MTC when UE contracts and has sporadic data transmission characteristic? UE carries out off-line operation; The present invention also discloses a kind of cordless communication network, pass through the solution of the present invention, can the MTC when signing sporadic data transmission characteristic be realized? after UE and machine type communication server communication terminate, is cordless communication network in time to this MTC? UE carries out off-line operation, releasing network resources, reduces the risk of network congestion.

Description

A kind of method of cordless communication network and notice equipment for machine type communication off-line thereof
Technical field
The present invention relates to mobile communication technology, particularly relate to a kind of method of cordless communication network and notice equipment for machine type communication (MTCUE, MachineTypeCommunicationDevice) off-line thereof.
Background technology
In recent years, communication (M2M, the MachinetoMachine) business between machine to machine starts to be applied gradually, as application such as logistics system, remote meter reading, Smart Homes.M2M service provider uses existing cordless communication network, as GPRS (GPRS, GeneralPacketRadioService) the PS network such as network, evolved packet system (EPS, EvolvedPacketSystem) network carries out M2M business.Because M2M business and interpersonal communication (H2H, HumantoHuman) business have obvious otherness, need to carry out necessary optimization to existing network, to obtain best network management and network communications quality.
GPRS network is a Generation Mobile Telecommunication System network based on packet switch, arrive 3-G (Generation Three mobile communication system), GPRS is evolved to universal mobile telecommunications system packet-switched domain (UMTSPS, UniversalMobileTelecommunicationsystemPacketSwitch).As shown in Figure 1, following network element is comprised in the network architecture of UMTSPS:
Radio Network System (RNS, RadioNetworkSystem), comprises NodeB and radio network controller (RNC, RadioNetworkController), and NodeB eats dishes without rice or wine to connect for terminal provides; RNC is mainly used in managing radio resources and control NodeB, is connected between RNC and NodeB by Iub mouth, and terminal accesses the packet domain core network (PacketCore) of UMTS by RNS;
Serving GPRS Support Node (SGSN, ServingGPRSSupportNode), for preserving the Route Area positional information of user, is responsible for safety and access control; SGSN is connected with RNS by Iu mouth;
Gateway GPRS Support Node (GGSN, GatewayGPRSsupportNode), the IP address for responsible distributing terminals and the gateway function to external network, be connected with SGSN by Gn mouth in inside;
Attaching position register (HLR, HomeLocationRegister), for the SGSN address of the subscription data and current place of preserving user, is connected with SGSN by Gr mouth, is connected by Gc mouth with GGSN;
Packet data network (PDN, PacketDataNetwork), for providing packet-based service network for user, is connected with GGSN by Gi mouth.
In FIG, MTCUE needs to set up carrying, by GPRS network to MTCServer transmitting data information in GPRS network.
Along with the development of wireless broad band technology, the performance requirement such as bandwidth, time delay of operation layer to transport layer is more and more higher.For improving its network performance, reduce networking and operation cost, 3GPP is devoted to System Architecture Evolution (SAE, SystemArchitectureEvolution) research, object is the Packet Based Network (EPC making evolution, EvolvedPacketCore) higher transmission rate, shorter transmission delay can be provided, optimize grouping, and support the UTRAN (E-UTRAN of evolution, mobile management between the access network of EvolvedUTRAN), UTRAN, WLAN (wireless local area network) (WLAN, WirelessLocalAreaNetwork) and other non-3 gpp.
The framework of current EPS as shown in Figure 2, wherein, the network element comprised in the wireless access network (E-RAN, EvolvedRadioAccessNetwork) of evolution is: enode b (eNodeB, EvolvedNodeB), Radio Resource is provided for the access for user; PDN is for user provides the network of business; EPC provides lower delay, and allows more wireless access system to access, and it comprises following network element:
Mobile management entity (MME, MobilityManagementEntity), it is chain of command functional entity, the server of interim storage user data, be in charge of and store the context (such as user ID, mobility management states, user security parameters etc.) of subscriber equipment (UE, UserEquipment), for user distributes temporary mark, when UE quarters at this tracing area or this network, be responsible for carrying out authentication to this user.
Gateway (S-GW, ServingGateway) is a user entity, is responsible for user face data route processing, 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 in 3GPP internal system user face, and a user can only have a S-GW a moment.
Packet data network gateway (P-GW, PDNGateway), be the gateway that responsible UE accesses PDN, distributing user IP address is also the mobility anchor point of 3GPP and non-3 GPP access system, and the function of P-GW also comprises strategy enforcement, charging support.User can access multiple PGW at synchronization.Strategy and charging are implemented functional entity (PCEF, PolicyandChargingEnforcementFunction) and are also arranged in P-GW.
Strategy and charging regulation function entity (PCRF, PolicyandChargingRulesFunction), be responsible for providing policy control and charging regulation to PCEF;
User-subscribed database (SPR, SubscriptionProfileRepository), for managing signing strategy and PCC rule;
Home subscriber server (HSS, HomeSubscriberServer), be responsible for permanent storage user contracting data, the content that HSS stores comprises the international mobile subscriber identity (IMSI, InternationalMobileSubscriberIdentification) of UE, the IP address of P-GW.
Physically, S-GW and P-GW may unify, and EPC system user veil unit comprises S-GW and P-GW.
Machine type communication server (MTCServer, MachineTypeCommunicationServer), primary responsibility to work such as the information gathering of MTCUE and data stores/processes, and can carry out necessary management to MTCUE.
MTCUE, similar with UE, be usually responsible for collecting some collectors information and by RAN node core network access, and with MTCServer interaction data.
In prior art, when the CAMEL-Subscription-Information of MTCUE change, the reason such as cordless communication network is abnormal, MTCUE is limited, network needs to carry out off-line operation (Detach) to terminal.
Fig. 3 describes in prior art, and MTCUE has been attached to EPS network, and network carries out the process of off-line operation to it, comprises following step:
Step 101:MTCUE is successfully attached to EPS network and sets up EPS carrying;
Step 102: when EPS network carries out off-line operation to MTCUE, the MME of EPS network initiates off-line request message to MTCUE, carries off-line type;
Step 103:MME initiates deleting bearing message to S-GW simultaneously, and S-GW deletes the EPS bearer context information relevant to this MTCUE; S-GW sends deleting bearing message to P-GW, and P-GW deletes all PDNs relevant to this MTCUE and connects, and then P-GW/S-GW returns deleting bearing response message to MME;
Step 104: after MTCUE receives the off-line request of MME transmission, off-line acceptance response can be initiated at any time to MME;
Step 105: after MME receives off-line acceptance response and deleting bearing responds, just initiates S1 release message to eNodeB, and the signalling path of release eNodeB to MME, discharges wireless signaling passage by eNodeB.
Fig. 4 describes in prior art, and MTCUE is attached to GPRS network, and GPRS network carries out the process of off-line operation to it, comprises following step:
Step 201:MTCUE is successfully attached to GPRS network and sets up PDP Context carrying;
Step 202: when GPRS network carries out off-line operation to MTCUE, the SGSN of GPRS network initiates off-line request message to MTCUE, carries off-line type;
Step 203:SGSN initiates to delete PDP Context request message to GGSN simultaneously, and GGSN deletes all PDP Contexts relevant to this MTCUE and connects, and then GGSN returns to SGSN and deletes PDP Context response message;
Step 204: after MTCUE receives the off-line request of SGSN transmission, off-line acceptance response can be initiated at any time to SGSN;
Step 205: after SGSN receives off-line acceptance response and deletion PDP Context responds, just initiate PS signaling connection release message to RNS, the signalling path of release RNS to MME, discharges wireless signaling passage by RNS.
Existing M2M business with machine terminal intelligent interaction be core, the application of networking and service.It adopts intelligent machine terminal, by wireless network transmissions information, is the informatization resolve scheme that client provides, for meeting the information system requirement of client to aspects such as monitoring, command scheduling, data acquisition and measurements.
The communication object of M2M is Machine To Machine, can be the communication between human and computer, the communication between machine and server, the communication between different intelligent terminal.The MTCUE of different application has different characteristics, as the lifter apparatus such as elevator have Hypomobility, PSonly attribute, sporadic data transmission etc., and monitor, alert device except there is Hypomobility, PSonly, also there is the attributes such as low transfer of data.Therefore need the MTCUE for different application to carry out different system optimizations, effectively can manage MTCUE, monitor, paying etc., and farthest effectively utilize Internet resources by the network optimization.
M2MUE has multifrequency nature combination, and wherein sporadic data transmission characteristic is an one important feature.The demand of sporadic data transmission mainly solves the M2MUE network of relation optimization problem for signing sporadic data transmission characteristic, this type of M2MUE is off-line time flat, when itself and MTCServer need to carry out data communication, data as M2MUE preservation have arrived the memory range upper limit that store predetermined uses, and M2MUE will initiatively be linked into cordless communication network and communicate with MTCServer.After the transfer of data of this M2MUE and MTCServer successfully terminates, by the network optimization, cordless communication network needs notice M2MUE off-line in time, to discharge the Internet resources that this M2MUE takies.Just again access when this M2MUE has data to need to upload, start another transmitting procedure.
In existing GPRS and LTE network, there are three kinds of modes can carry out off-line operation to M2MUE, the first scheme is that M2MUE initiatively initiates off-line operation, first scheme is that MME/SGSN initiates off-line operation (flow process as Fig. 3 and Fig. 4 describes), and the third scheme is that HSS initiates off-line operation.The scene that M2MUE initiatively initiates mainly is shut down, and M2MUE is mainly based on the signing scene such as renewal, Network Abnormal, network congestion in SGSN/MME/HSS active off-line operation.Existing three kinds of modes are all carry out off-line operation for when cordless communication network generation exception or M2MUE shutdown to M2MUE; for the M2MUE of sporadic data transmission characteristic signing in the scene normally run at cordless communication network; also do not have to make it after terminating with MTCServer data communication at present, in time this M2MUE is carried out to the technical scheme of off-line operation.
Summary of the invention
In view of this, main purpose of the present invention is a kind of method providing cordless communication network and notice equipment for machine type communication off-line thereof, realize after MTCUE and the MTCServer sign off of signing sporadic data transmission characteristic, cordless communication network carries out off-line operation to this MTCUE in time, releasing network resources, reduces the risk of 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 equipment for machine type communication off-line provided by the invention, the method comprises:
Cordless communication network obtains the signing CAMEL-Subscription-Information having the MTCUE of sporadic data transmission characteristic;
Determine MTCUE DTD at cordless communication network, and when determining that described MTCUE is signing have a sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, cordless communication network carries out off-line operation to described MTCUE.
In such scheme, described cordless communication network obtains the signing CAMEL-Subscription-Information having the MTCUE of sporadic data transmission characteristic, for the chain of command network element of: cordless communication network to be attached to the CAMEL-Subscription-Information of the MTCUE of cordless communication network from home domain data server network element download request, the CAMEL-Subscription-Information of described MTCUE comprises the signing sporadic data transmission characteristic having described MTCUE; Described chain of command network element comprises the MME of EPS network or the SGSN of GPRS network; Described home domain data server network element comprises the HSS of EPS network or the HLR of GPRS network.
In such scheme, described cordless communication network determines MTCUE DTD, for: the signaling connection release message that the chain of command network element of cordless communication network is sent by wireless side network element determines MTCUE DTD;
Or, after the chain of command network element of cordless communication network receives the deletion media bearer request message that user's veil unit sends, discharge described media bearer resource, and after the media bearer described MTCUE being detected is all deleted, determine MTCUE DTD; Described media bearer is specialized media carrying or default bearing.
In such scheme, before described chain of command network element receives the deletion media bearer request message of user's veil unit transmission, the method also comprises: described user's veil unit determines the DTD of described media bearer between MTCUE and MTCServer.
In such scheme, described user's veil unit determines the DTD of described media bearer between MTCUE and MTCServer, comprising:
If user's veil unit detects that described media bearer is idle for a long time, just determine the DTD of this media bearer;
Or, MTCServer with MTCUE DTD after, to user's veil, unit sends DTD notification message, after described user's veil unit receives DTD notification message, determines the DTD of this media bearer;
Or, the mark of DTD is carried in the packet header of MTCServer in the end end data packet, user's veil unit adopts deep-packet detection to packet, detect from the packet header of packet and whether have DTD to mark, if comprise this mark, just determine the DTD of this media bearer.
In such scheme, described wireless side network element comprises: the eNodeB of EPS network or the RNS of GPRS network;
Described user's veil unit comprises: the P-GW of EPS network or the GGSN of GPRS network.
In such scheme, the method comprises further: before notifying that described MTCUE carries out off-line operation, starts timer and carries out time delay.
A kind of cordless communication network provided by the invention, this cordless communication network comprises: chain of command network element, for obtaining the signing CAMEL-Subscription-Information having the MTCUE of sporadic data transmission characteristic; Determining MTCUE DTD, and when determining that described MTCUE is signing have a sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, off-line operation is being carried out to described MTCUE.
In such scheme, this cordless communication network comprises home domain data server network element further, for providing the CAMEL-Subscription-Information of MTCUE.
In such scheme, this cordless communication network further comprises wireless side network element, for sending signaling connection release message to chain of command network element;
Accordingly, described chain of command network element, the signaling connection release message also for being sent by wireless side network element determines MTCUE DTD.
In such scheme, this network further comprises user's veil unit, for determining the DTD of described media bearer between MTCUE and MTCServer, and sends deletion media bearer request message to chain of command network element;
Accordingly, described chain of command network element, also for after receiving deletion media bearer request message that user's veil unit sends, discharges described media bearer resource, and after detecting that described media bearer is all deleted, determines MTCUE DTD.
In such scheme, described chain of command network element, further also for before notifying that described MTCUE carries out off-line operation, starts timer and carries out time delay.
The method of a kind of cordless communication network provided by the invention and notice MTCUE off-line thereof, cordless communication network obtains the signing CAMEL-Subscription-Information having the MTCUE of sporadic data transmission characteristic; Determine MTCUE DTD at cordless communication network, and when determining that described MTCUE is signing have a sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, cordless communication network carries out off-line operation to described MTCUE; So, can realize after MTCUE and the MTCServer sign off of signing sporadic data transmission characteristic, cordless communication network carries out off-line operation to this MTCUE in time, releasing network resources, reduces the risk of network congestion.
Accompanying drawing explanation
Fig. 1 is the network architecture schematic diagram of UMTSPS in prior art;
Fig. 2 is the network architecture schematic diagram of SAE in prior art;
Fig. 3 is in prior art, and MTCUE has been attached to EPS network, and EPS network carries out the schematic flow sheet of off-line operation to it;
Fig. 4 is that in prior art, MTCUE is attached to GPRS network, and GPRS network carries out the schematic flow sheet of off-line operation to it;
Fig. 5 is the schematic flow sheet that the present invention realizes the method for network advertisement MTCUE off-line;
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 present invention one realizes that MME notifies the method for MTCUE off-line;
Fig. 8 is the schematic flow sheet that the embodiment of the present invention two realizes that SGSN notifies the method for MTCUE off-line;
Fig. 9 is the schematic flow sheet that the embodiment of the present invention three realizes that MME notifies the method for MTCUE off-line;
Figure 10 is the schematic flow sheet that the embodiment of the present invention four realizes that MME notifies the method for MTCUE off-line;
Figure 11 is the schematic flow sheet that the embodiment of the present invention five realizes that MME notifies the method for MTCUE off-line;
Figure 12 is the schematic flow sheet that the embodiment of the present invention six realizes that SGSN notifies the method for MTCUE off-line;
Figure 13 is the schematic flow sheet that the embodiment of the present invention seven realizes that SGSN notifies the method for MTCUE off-line;
Figure 14 is the schematic flow sheet that the embodiment of the present invention eight realizes that SGSN notifies the method for MTCUE off-line.
Embodiment
Basic thought of the present invention is: cordless communication network obtains the signing CAMEL-Subscription-Information having the MTCUE of sporadic data transmission characteristic; Determine MTCUE DTD at cordless communication network, and when determining that described MTCUE is signing have a sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, cordless communication network carries out off-line operation to described MTCUE.
Below by drawings and the specific embodiments, the present invention is described in further detail.
The present invention realizes the method for cordless communication network notice MTCUE off-line, and as shown in Figure 5, the method comprises following step:
Step 301: cordless communication network obtains the signing CAMEL-Subscription-Information having the MTCUE of sporadic data transmission characteristic;
Concrete, when MTCUE request is attached to network, the chain of command network element of cordless communication network downloads the CAMEL-Subscription-Information of described MTCUE from home domain data server network element, the CAMEL-Subscription-Information of described MTCUE comprises the signing sporadic data transmission characteristic having described MTCUE; Described chain of command network element comprises the MME of EPS network or the SGSN etc. of GPRS network; Described home domain data server network element comprises the HSS of EPS network or the HLR etc. of GPRS network.
Step 302: cordless communication network determines MTCUE DTD;
Concrete, the signaling connection release message that the chain of command network element of cordless communication network is sent by wireless side network element determines MTCUE DTD;
Or, after the chain of command network element of cordless communication network receives the deletion media bearer request message that user's veil unit sends, discharge described media bearer resource, and after the media bearer described MTCUE being detected is all deleted, determine MTCUE DTD; Described media bearer both can be specialized media carrying, also can be default bearing.
Described user's veil unit is before media bearer request message is deleted in transmission, also comprise the DTD that described user's veil unit determines described media bearer between MTCUE and MTCServer, described user's veil unit can adopt several data to transmit detection mode to detect DTD to the transfer of data of media bearer described between MTCUE and MTCServer, as:
Adopt the mode of bearer path idle-detection, if that is: user's veil unit detects that described media bearer passage is idle for a long time, just determine the DTD on this media bearer;
Or, adopt MTCServer to the mode of user's veil unit notification data end of transmission, that is: MTCServer with MTCUE DTD after, to user's veil, unit sends DTD notification message, after described user's veil unit receives DTD notification message, determine the DTD of this media bearer;
Or, user's veil unit is adopted packet to be detected to the mode of DTD mark, that is: the mark of DTD is carried in the packet header of MTCServer in the end end data packet, user's veil unit adopts deep-packet detection to packet, detect from the packet header of packet and whether have DTD to mark, if comprise this mark, just determine the DTD of this media bearer;
In above-mentioned, described wireless side network element comprises: the eNodeB of EPS network or the RNS etc. of GPRS network; Described user's veil unit comprises: the P-GW of EPS network or the GGSN etc. of GPRS network.
Step 303: according to the CAMEL-Subscription-Information obtained, cordless communication network determines that described MTCUE is signing sporadic data transmission characteristic, then carry out off-line operation to described MTCUE;
Further, this step also comprises: before carrying out off-line operation to described MTCUE, starts timer and carries out time delay, at timer then, carry out off-line operation to described MTCUE.
In order to realize said method, the present invention also provides a kind of cordless communication network, and as shown in Figure 6, this cordless communication network comprises: chain of command network element 61, for obtaining the signing CAMEL-Subscription-Information having the MTCUE of sporadic data transmission characteristic; Determining MTCUE DTD, and when determining that described MTCUE is signing have a sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, off-line operation is being carried out to described MTCUE.
This cordless communication network comprises home domain data server network element 62 further, for providing the CAMEL-Subscription-Information of MTCUE.
This cordless communication network further comprises wireless side network element 63, for sending signaling connection release message to chain of command network element 61;
Accordingly, described chain of command network element 61, the signaling connection release message also for being sent by wireless side network element 63 determines MTCUE DTD.
Or this cordless communication network further comprises user's veil unit 64, for determining the DTD of described media bearer between MTCUE and MTCServer, and send deletion media bearer request message to chain of command network element 61;
Described user's veil unit 64 determines the DTD of described media bearer between MTCUE and MTCServer, and the mode of employing comprises: adopt the mode of bearer path idle-detection or adopt MTCServer to the mode of user's veil unit notification data end of transmission or adopt the first mode etc. packet being detected to DTD mark of user's veil;
Accordingly, described chain of command network element 61, also for after receiving deletion media bearer request message that user's veil unit 64 sends, discharges described media bearer resource, and after detecting that described media bearer is all deleted, determines MTCUE DTD.
Described chain of command network element 64, further also for before notifying that described MTCUE carries out off-line operation, starts timer and carries out time delay, at timer then, carry out off-line operation to described MTCUE.
Implementation procedure and the principle of method of the present invention is described in detail below in conjunction with specific embodiment.
Embodiment one
In the present embodiment, when MTCUE asks to be attached to EPS network first, MME downloads the CAMEL-Subscription-Information of this MTCUE from HSS, know that this MTCUE is signing according to described CAMEL-Subscription-Information and have sporadic data transmission characteristic, MME determines this MTCUE DTD according to the S1 releasing request that wireless side network element is initiated, and after determining that this MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, off-line operation is carried out to this MTCUE, notifies this MTCUE off-line.As shown in Figure 7, the present embodiment realizes MME and notifies that the method for MTCUE off-line comprises following step:
Step 401:MTCUE initiates network attachment request to eNodeB, and carry the information such as the network accessibility of IMSI, UE, APN wherein, eNodeB is that UE selects a MME, and will adhere to request forward to this MME;
Step 402:MME sends the authorization data request message comprising IMSI to HSS, HSS finds corresponding CAMEL-Subscription-Information according to IMSI, and returns the authorization data response message comprising authentication vector to MME.MME performs the legitimacy of the IMSI of authorizing procedure checking MTCUE, and performs safe mode flow process, to enable secure connection.
Step 403:MME sends position updating request to HSS, and HSS goes out the CAMEL-Subscription-Information of MTCUE according to the identifier lookup of MTCUE, sends to MME; MME receives described CAMEL-Subscription-Information, checks whether MTCUE is allowed access to network, returns receive user's response to HSS;
Step 404:MME knows that from CAMEL-Subscription-Information this MTCUE is signing sporadic data transmission characteristic, MME selects P-GW and S-GW according to APN afterwards, then send to S-GW/P-GW and set up default bearer request, in request, carry the sporadic data transmission characteristic CAMEL-Subscription-Information etc. of the address information of S-GW/P-GW, default bandwidth information, this MTCUE;
The strategy that step 405:P-GW configures for this MTCUE to PCRF/SPR request and charging regulation, decision information;
Further, if SPR contracts the sporadic data transmission characteristic of this MTCUE in this step, can download also can by PCC rule response message to PCRF, PCRF, this characteristic information is issued P-GW, and namely P-GW also can obtain MTCUE from PCRF and to contract the information of sporadic data transmission characteristic.
The strategy that step 406:P-GW returns according to PCRF and charging decisions information, set up default bearer, and return carrying to S-GW and set up response, sends the response that default bearing sets up by S-GW to MME;
Step 407:MME sends attachment response to eNodeB, shows that the request being attached to network of MTCUE is received;
In this step, set up radio bearer between UE and eNodeB, then eNodeB notifies that MME attaching process completes, and MME, to S-GW more new bearer, completes attaching process.
Step 408: when MTCUE and MTCServer needs transmission data, according to media transmission types needs, network sets up specialized media carrying or directly by default bearing, and MTCUE carries out transfer of data by media bearer or default bearing and MTCServer;
Step 409: after transfer of data completes between MTCUE and MTCServer, eNodeB sends S1 releasing request message to MME, and request release is connected with the signaling of MME;
Concrete, after between MTCUE and MTCServer, transfer of data completes, because wireless link channel is idle for a long time, Radio Link Failure can be caused, wireless side RAN will trigger Idle mechanism, and trigger eNodeB and send S1 releasing request message to MME, request release is connected with the signaling of MME; Or MTCUE is after DTD, initiate the request of RRC Connection Release to eNodeB, eNodeB sends S1 releasing request message to MME, and request release is connected with the signaling of MME;
After step 410:MME receives S1 releasing request message, determine this MTCUE DTD, return S1 discharge response message to eNodeB, the signalling path of release eNodeB to MME, discharges wireless signaling passage by eNodeB;
According to the CAMEL-Subscription-Information of the MTCUE obtained, step 411:MME determines that this MTCUE is signing sporadic data transmission characteristic, carries out off-line operation according to carrier policy to this MTCUE;
Here, described carrier policy can be: start timer time delay execution and carry out off-line operation to this MTCUE; Or not time delay directly performs carries out off-line operation to this MTCUE;
Describedly carry out off-line operation, comprise: MME initiates off-line request message to MTCUE, carry off-line type and cause value, initiate deleting bearing message to S-GW simultaneously, S-GW deletes the EPS bearer context information relevant to this MTCUE, and sending deleting bearing message to P-GW, P-GW deletes all PDNs relevant to this MTCUE and connects, and then P-GW/S-GW returns deleting bearing response message to MME; Wherein, after MTCUE receives the off-line request of MME transmission, off-line acceptance response can be initiated at any time to MME, confirm MTCUE off-line.
Embodiment two
In the present embodiment, when MTCUE asks to be attached to GPRS network first, SGSN downloads the CAMEL-Subscription-Information of this MTCUE from HLR, know that this MTCUE is signing according to described CAMEL-Subscription-Information and have sporadic data transmission characteristic, MTCUE DTD is determined in the PS signaling Connection Release request that SGSN sends according to wireless side network element, and after determining that this MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, off-line operation is carried out to this MTCUE, notifies this MTCUE off-line.As shown in Figure 8, the present embodiment realizes SGSN and notifies that the method for MTCUE off-line comprises following step:
Step 501:MTCUE initiates Attach Request message by RNS to SGSN, carries the parameters such as IMSI, RNS by this Message routing to SGSN;
Step 502:SGSN carries out authentication to HLR request to IMSI, and HLR downloads authentication parameter according to IMSI, and SGSN carries out authentication and certification to MTCUE;
Step 503:SGSN sends position updating request to HLR, carry SGSN number and the parameter such as address, IMSI, the CAMEL-Subscription-Information corresponding with IMSI is downloaded and is carried out access control inspection to SGSN, SGSN to MTCUE by HLR, check whether MTCUE has region limits or access restriction, then notifies HLR;
Step 504:SGSN is this MTCUE allocation packets temporarily moved subscriber identification number (P-TMSI, Packet-TemporateMobilesubscriberIdentify), then attachment is accepted message and send to MTCUE, carry the information such as the P-TMSI distributed for this MTCUE;
Step 505: if MTCUE needs to carry out service interaction, first needs to set up PDP Context in a network and connects;
Concrete, if MTCUE needs to carry out service interaction, PDP context activation is carried out in MTCUE application, and create GTP carrying, the request of activation PDP Context is issued SGSN by MTCUE, carries the information such as PDP type, pdp address, APN.
Step 506:SGSN knows that from CAMEL-Subscription-Information this MTCUE is signing sporadic data transmission characteristic, the address of GGSN is found according to APN, and PDP Context creates GTP tunnel mark (TEID for this reason, TunnelEndpointIdentifier), rear transmission to GGSN create PDP Context request message, carry the sporadic data transmission characteristic information of described MTCUE in this request message;
The strategy that step 507:GGSN configures for this MTCUE to PCRF/SPR request and charging regulation, decision information;
Further, if SPR contracts the sporadic data transmission characteristic of this MTCUE in this step, can download also can by PCC rule response message to PCRF, PCRF, this characteristic information is sent to P-GW, and namely P-GW also can obtain the information of the sporadic data transmission characteristic that MTCUE contracts from PCRF.
The strategy that step 508:GGSN returns according to PCRF and charging decisions information, set up PDP Context, and send to SGSN the establishment success response that PDP Context sets up;
Step 509:SGSN sends the response of PDP Context successful activation by RNS to MTCUE, radio bearer is set up between MTCUE and RAN, PDP Context is successfully set up, and GGSN is known that from PDP Context process of establishing this MTCUE is signing and had sporadic data transmission characteristic;
Step 510: when MTCUE and MTCServer needs transmission data, MTCUE carries out transfer of data by media channel and MTCServer;
Step 511: after transfer of data completes between MTCUE and MTCServer, RNS sends PS signaling Connection Release request message to SGSN, and request release is connected with the signaling of SGSN;
Concrete, after between MTCUE and MTCServer, transfer of data completes, because network radio link passage is idle for a long time, Radio Link Failure can be caused, wireless side RAN will trigger Idle mechanism, trigger RNS and send PS signaling Connection Release request message to SGSN, request release is connected with the signaling of SGSN; Or MTCUE is after DTD, send the request of RRC Connection Release to RNS, send PS signaling Connection Release request message to SGSN after RNS receives the request of RRC Connection Release, request release is connected with the signaling of SGSN.
Step 512: after SGSN receives PS signaling Connection Release request message, determine this MTCUE DTD, returns PS signaling connection release response message to RNS, the PS signalling path of release RNS to SGSN, and discharges wireless signaling passage by RNS;
According to the CAMEL-Subscription-Information of the MTCUE obtained, step 513:SGSN determines that this MTCUE is signing sporadic data transmission characteristic, carries out off-line operation according to carrier policy to this MTCUE;
Here, described carrier policy can be: start timer time delay execution and carry out off-line operation to this MTCUE; Or not time delay directly performs this MTCUE and carries out off-line operation;
Described off-line operation, comprise: SGSN sends off-line request message to MTCUE, carries off-line type and cause value, send to GGSN simultaneously and delete PDP Context message, GGSN deletes all PDP Contexts relevant to this MTCUE, then returns to SGSN and deletes PDP Context response message; Wherein, after MTCUE receives the off-line request of SGSN transmission, off-line acceptance response can be initiated at any time to SGSN, confirm MTCUE off-line.
Embodiment three
In the present embodiment, after MTCUE is attached to EPS network, MME downloads the CAMEL-Subscription-Information of this MTCUE from HSS, know that this MTCUE is signing according to described CAMEL-Subscription-Information and have sporadic data transmission characteristic, MTCUE sets up media bearer and MTCServer carries out transfer of data, when media bearer does not have transfer of data to be in Idle state, P-GW starts idle-detection timer, timer determines DTD after overflowing, notice MME deletes the media bearer of this MTCUE, MME has deleted according to all media bearers of this MTCUE and has determined this MTCUE DTD, and after determining that this MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, off-line operation is carried out to this MTCUE.As shown in Figure 9, the present embodiment realizes MME and notifies that the method for MTCUE off-line comprises following step:
Step 601:MTCUE successfully adheres at EPS network, and establishes EPS default bearing, and MME downloads the CAMEL-Subscription-Information of this MTCUE from HSS, and knowing that this MTCUE is signing has sporadic data transmission characteristic; P-GW obtains that this MTCUE is signing sporadic data transmission characteristic information setting up in EPS default bearing process;
Step 602: when MTCUE and MTCServer needs transmission data, EPS network is set up specialized media carrying according to media service type and APN or is adopted default bearing as media bearer between MTCUE and MTCServer;
Step 603:MTCUE carries out transfer of data by described media bearer and MTCServer;
Step 604: in data transmission procedure, P-GW carries out idle-detection to described media bearer, when described media bearer does not have data traffic, P-GW starts idle-detection timer, if until timer overflows described media bearer still do not have flow, then P-GW determines the DTD of MTCUE between described media bearer and MTCServer;
Step 605:P-GW sends deleting bearing request to MME, notifies that described media bearer is idle, carries described MTCUE and identifies and bearing identification;
After step 606:MME receives deleting bearing message, discharge the resource that described media bearer distributes, and return deleting bearing response message to P-GW, P-GW deletes described media bearer;
Step 607:MME has deleted according to all media bearers of this MTCUE and has determined this MTCUE DTD, and after determining that this MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, carries out off-line operation to this MTCUE;
In this step, if described MTCUE only has the PDN connection that an APN is corresponding, MME needs to check whether all media bearers in described PDN connection are deleted all, if all media bearers of described MTCUE are deleted all, then determine this MTCUE DTD, and after determining that this MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, off-line operation is carried out to this MTCUE;
If described MTCUE has multiple PDN to connect, be connected to multiple MTCServer, then MME needs to check whether the media bearer that multiple PDN connects is deleted all, if all media bearers of described MTCUE are deleted all, then determine described MTCUE DTD, and after determining that described MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, notify that this MTCUE carries out off-line operation;
If MTCUE adopts default bearing to carry out data communication, when the default bearing that all PDN connect is deleted all, MME determines described MTCUE DTD, and after determining that described MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, carries out off-line operation to this MTCUE;
Described off-line operation, comprising: MME sends off-line request message to MTCUE, carries off-line type and cause value, after MTCUE receives the off-line request message of MME transmission, can send off-line acceptance response at any time to MME; After MME receives off-line acceptance response, initiate S1 release message to eNodeB, the signalling path of release eNodeB to MME, discharges wireless signaling passage by eNodeB.
Embodiment four
In the present embodiment, after MTCUE is attached to EPS network, MME downloads the CAMEL-Subscription-Information of this MTCUE from HSS, know that this MTCUE is signing according to described CAMEL-Subscription-Information and have sporadic data transmission characteristic, MTCUE sets up media bearer and MTCServer carries out transfer of data, when after the transfer of data that MTCServer terminates with MTCUE, described MTCServer sends DTD notice to P-GW, P-GW determines DTD according to DTD notice, and notify that MME deletes corresponding PDN and connects, MME has deleted according to all PDN connections of this MTCUE and has determined this MTCUE DTD, and after determining that this MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, off-line operation is carried out to this MTCUE.As shown in Figure 10, the present embodiment realizes MME and notifies that the method for MTCUE off-line comprises following step:
Step 701:MTCUE successfully adheres at EPS network, and establishes EPS default bearing, and MME downloads the CAMEL-Subscription-Information of this MTCUE from HSS, and knowing that this MTCUE is signing has sporadic data transmission characteristic; P-GW obtains that this MTCUE is signing sporadic data transmission characteristic information setting up in EPS default bearing process;
Step 702: when MTCUE and MTCServer needs transmission data, EPS network is set up specialized media carrying according to media service type and APN or is adopted default bearing as media bearer between MTCUE and MTCServer;
Step 703:MTCUE carries out transfer of data by described media bearer and MTCServer;
Step 704: when after the transfer of data that MTCServer terminates with MTCUE, MTCServer sends DTD notice to P-GW, carries the parameters such as described MTCUE mark, APN, MTCServer address; P-GW, according to the DTD notice received, determines the DTD between MTCUE and MTCServer;
Step 705:P-GW sends to MME and deletes PDN connection request message, notifies that described media bearer is idle, carries described MTCUE and identifies and APN parameter etc.;
Step 706:MME discharges the bearing resource under this PDN connection after receiving and deleting PDN connection request message, and returns deletion PDN connection response message to P-GW, and P-GW deletes all carryings under being connected with this PDN;
Step 707:MME connects to have deleted according to all PDN of this MTCUE and determines this MTCUE DTD, and after determining that this MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, carries out off-line operation to this MTCUE;
In this step, if this MTCUE only has the PDN connection that an APN is corresponding, after this PDN connects deletion, MME determines this MTCUE DTD, and after determining that this MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, to the off-line operation of this MTCUE;
If this MTCUE has multiple PDN to connect, be connected to multiple MTCServer, MME checks whether the media bearer that multiple PDN connects is deleted all, if all delete, then determine this MTCUE DTD, and after determining that this MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, to the off-line operation of this MTCUE;
Described off-line operation, comprising: MME sends off-line request message to MTCUE, carries off-line type and cause value; After MTCUE receives the off-line request of MME transmission, initiate off-line acceptance response at any time to MME; After MME receives off-line acceptance response, initiate S1 release message to eNodeB, the signalling path of release eNodeB to MME, discharges wireless signaling passage by eNodeB.
Embodiment five
In the present embodiment, after MTCUE is attached to EPS network, MME downloads the CAMEL-Subscription-Information of this MTCUE from HSS, know that this MTCUE is signing according to described CAMEL-Subscription-Information and have sporadic data transmission characteristic, MTCUE sets up media bearer and MTCServer carries out transfer of data, when MTCServer terminates the transfer of data with MTCUE, in the end carry a transfer of data end mark in end data packet packet header, P-GW carries out deep-packet detection to the packet in this media bearer, DTD mark is carried when detecting in packet header, P-GW just determines this media bearer DTD, then notify that MME deletes corresponding media bearer, MME has deleted according to all media bearers of this MTCUE and has determined this MTCUE DTD, and after determining that this MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, carries out off-line operation to this MTCUE.As shown in figure 11, the present embodiment realizes MME and notifies that the method for MTCUE off-line comprises following step:
Step 801:MTCUE successfully adheres at EPS network, and sets up EPS default bearing, and MME downloads the CAMEL-Subscription-Information of this MTCUE from HSS, and knowing that this MTCUE is signing has sporadic data transmission characteristic; P-GW obtains that this MTCUE is signing sporadic data transmission characteristic information setting up in load bearing process;
Step 802: when MTCUE and MTCServer needs transmission data, EPS network is set up specialized media carrying according to media service type and APN or is adopted default bearing as media bearer between MTCUE and MTCServer;
Step 803:MTCUE carries out transfer of data by described media bearer and MTCServer, and P-GW carries out deep-packet detection to the packet in the media bearer of this MTCUE;
Step 804: when MTCServer terminates the transfer of data with MTCUE, the mark of DTD is carried in the packet header of MTCServer in the end end data packet, P-GW passes through deep-packet detection, detect in the packet header of packet after carrying DTD mark, just determine the DTD at this media bearer between MTCUE and MTCServer;
Step 805:P-GW sends to MME and deletes media bearer request message, carries the parameters such as this media bearer mark, MTCUE mark, notifies that this media bearer is idle;
After step 806:MME receives deleting bearing request message, discharge the resource that this media bearer distributes, and return 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 MTCUE and has determined this MTCUE DTD, and after determining that this MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, carries out off-line operation to this MTCUE;
In this step, if described MTCUE only has the PDN connection that an APN is corresponding, MME needs to check whether all media bearers in described PDN connection are deleted all, if all media bearers of described MTCUE are deleted all, then determine this MTCUE DTD, and after determining that this MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, off-line operation is carried out to this MTCUE;
If described MTCUE has multiple PDN to connect, be connected to multiple MTCServer, then MME needs to check whether the media bearer that multiple PDN connects is deleted all, if all media bearers of described MTCUE are deleted all, then determine described MTCUE DTD, and after determining that described MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, off-line operation is carried out to this MTCUE;
If MTCUE adopts default bearing to carry out data communication, when the default bearing that all PDN connect is deleted all, MME determines described MTCUE DTD, and after determining that described MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, carries out off-line operation to this MTCUE;
Described off-line operation, comprising: MME sends off-line request message to MTCUE, carries off-line type and cause value, after MTCUE receives the off-line request message of MME transmission, can send off-line acceptance response at any time to MME; After MME receives off-line acceptance response, initiate S1 release message to eNodeB, the signalling path of release eNodeB to MME, discharges wireless signaling passage by eNodeB.
Embodiment six
In the present embodiment, MTCUE is attached to GPRS network, and set up PDP Context connect with MTCServer carry out transfer of data; SGSN downloads the CAMEL-Subscription-Information of this MTCUE from HLR, and knowing that this MTCUE is signing according to described CAMEL-Subscription-Information has sporadic data transmission characteristic.There is no transfer of data when PDP Context connects, when being in Idle state, GGSN starts idle-detection timer, and timer determines DTD after overflowing, and the PDP Context that notice SGSN deletes this MTCUE connects; SGSN connects to have deleted according to all PDP Contexts of this MTCUE and determines this MTCUE DTD, and after determining that this MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, carries out off-line operation to this MTCUE.As shown in figure 12, the present embodiment realizes SGSN and notifies that the method for MTCUE off-line comprises following step:
Step 901:MTCUE is successfully attached to GPPS network, and sets up PDP Context connection; SGSN downloads the CAMEL-Subscription-Information of this MTCUE from HLR, and knowing that this MTCUE is signing has sporadic data transmission characteristic; GGSN obtains that this MTCUE is signing sporadic data transmission characteristic information setting up in PDP Context connection procedure;
Step 902: when MTCUE and MTCServer needs transmission data, GPPS network is set up dedicated PDP context according to media service type and APN and is connected as media bearer or adopt the PDP Context set up first to connect as media bearer between MTCUE and MTCServer;
Step 903:MTCUE carries out transfer of data by described media bearer and MTCServer;
Step 904: in data transmission procedure, GGSN carries out idle-detection to described media bearer, when this media bearer does not have quantity flow, GGSN starts idle-detection timer, if until timer overflows this media bearer still do not have flow, then GGSN determines the DTD between MTCUE and MTCServer;
Step 905:GGSN sends to SGSN and deletes PDP Context request, notifies that described PDP Context connects idle, carries described MTCUE and identify and PDP Context connection identifier;
Step 906:SGSN discharges described PDP Context and connects the resource taken after receiving and deleting PDP Context request message, and returns deletion PDP Context response message to GGSN, and all PDP Contexts that GGSN deletes this MTCUE connect;
Step 907:SGSN connects according to all PDP Contexts of this MTCUE and deletes, and determines this MTCUE DTD, and after determining that this MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, carries out off-line operation to this MTCUE;
In this step, described off-line operation, comprising: SGSN initiates off-line request message to MTCUE, carries off-line type and cause value; After MTCUE receives the off-line request of SGSN transmission, initiate off-line acceptance response at any time to SGSN; After SGSN receives off-line acceptance response, initiate PS signaling connection release message to RNS, the PS signalling path of release RNS to SGSN, discharges wireless signaling passage by RNS.
Embodiment seven
In the present embodiment, MTCUE is attached to GPRS network, and set up PDP Context connect with MTCServer carry out transfer of data; SGSN downloads the CAMEL-Subscription-Information of this MTCUE from HLR, and knowing that this MTCUE is signing according to described CAMEL-Subscription-Information has sporadic data transmission characteristic.When after the transfer of data that MTCServer terminates with MTCUE, MTCServer sends DTD notice to GGSN, and GGSN determines DTD according to DTD notice, and notifies that SGSN deletes PDP Context and connects; SGSN connects to have deleted according to all PDP Contexts of this MTCUE and determines this MTCUE DTD, and after determining that this MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, carries out off-line operation to this MTCUE.As shown in figure 13, the present embodiment comprises the following step of method realizing SGSN notice MTCUE off-line:
Step 1001:MTCUE is successfully attached to GPRS network, and sets up PDP Context connection; SGSN downloads the CAMEL-Subscription-Information of this MTCUE from HLR, and knowing that this MTCUE is signing has sporadic data transmission characteristic; GGSN obtains that this MTCUE is signing sporadic data transmission characteristic information setting up in PDP Context connection procedure;
Step 1002: when MTCUE and MTCServer needs transmission data, GPRS network is set up dedicated PDP context according to media service type and APN and is connected as media bearer or adopt the PDP Context set up first to connect as media bearer between MTCUE and MTCServer;
Step 1003:MTCUE carries out transfer of data by described media bearer and MTCServer;
Step 1004: when after the transfer of data that MTCServer terminates with MTCUE, MTCServer sends DTD notice to GGSN, carries the parameters such as this MTCUE mark, APN, MTCServer address; GGSN, according to the DTD notice received, determines the DTD between MTCUE and MTCServer;
Step 1005:GGSN sends to SGSN and deletes PDP Context request message, carries the parameter such as this PDP Context connection identifier, MTCUE mark, and all PDP Contexts that request deletes this MTCUE corresponding connect;
Step 1006:SGSN discharges described PDP Context and connects the bearing resource taken after receiving and deleting PDP Context request message, and returns deletion PDP Context response message to GGSN, and all PDP Contexts that GGSN deletes this MTCUE connect;
Step 1007:SGSN connects according to all PDP Contexts of this MTCUE and deletes, and determines this MTCUE DTD, and after determining that this MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, carries out off-line operation to this MTCUE;
In this step, described off-line operation, comprising: SGSN initiates off-line request message to MTCUE, carries off-line type and cause value; After MTCUE receives the off-line request of SGSN transmission, initiate off-line acceptance response at any time to SGSN; After SGSN receives off-line acceptance response, initiate PS signaling connection release message to RNS, the PS signalling path of release RNS to SGSN, discharges wireless signaling passage by RNS.
Embodiment eight
In the present embodiment, MTCUE is attached to GPRS network, and set up PDP Context connect with MTCServer carry out transfer of data; SGSN downloads the CAMEL-Subscription-Information of this MTCUE from HLR, and knowing that this MTCUE is signing according to described CAMEL-Subscription-Information has sporadic data transmission characteristic.When MTCServer terminates the transfer of data with MTCUE, in the end carry a transfer of data end mark in end data packet packet header, GGSN carries out deep-packet detection to the packet in the connection of this PDP Context, DTD mark is carried when detecting in packet header, GGSN just determines DTD, then notifies that SGSN deletes corresponding PDP Context and connects; SGSN connects according to all PDP Contexts of this MTCUE and deletes, and determines this MTCUE DTD, and after determining that this MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, carries out off-line operation to this MTCUE.As shown in figure 14, the present embodiment realizes SGSN and notifies that the method for MTCUE off-line comprises following step:
Step 1101:MTCUE is successfully attached to GPPS network, and sets up a PDP Context connection; SGSN downloads the CAMEL-Subscription-Information of this MTCUE from HLR, and knowing that this MTCUE is signing has sporadic data transmission characteristic; GGSN obtains that this MTCUE is signing sporadic data transmission characteristic information building in load bearing process;
Step 1102: when MTCUE and MTCServer needs transmission data, GPPS network is set up dedicated PDP context according to media service type and APN and is connected as media bearer or adopt the PDP Context set up first to connect as media bearer between MTCUE and MTCServer;
Step 1103:MTCUE carries out transfer of data by described media bearer and MTCServer, and GGSN carries out deep-packet detection to the packet in the media bearer of this MTCUE;
Step 1104: when MTCServer terminates the transfer of data with MTCUE, the mark of DTD is carried in the packet header of MTCServer in the end end data packet, GGSN passes through deep-packet detection, detect in the packet header of packet after carrying DTD mark, just determine the DTD at this media bearer between MTCUE and MTCServer;
Step 1105:GGSN sends to SGSN and deletes PDP Context request, carries this MTCUE and identifies and PDP Context connection identifier parameter;
Step 1106:SGSN discharges described PDP Context and connects the resource taken after receiving and deleting PDP Context request message, and returns deletion PDP Context response message to GGSN, and all PDP Contexts that GGSN deletes this MTCUE connect;
Step 1107:SGSN connects according to all PDP Contexts of this MTCUE and deletes, and determines this MTCUE DTD, and after determining that this MTCUE is signing have sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, carries out off-line operation to this MTCUE;
In this step, described off-line operation, comprising: SGSN initiates off-line request message to MTCUE, carries off-line type and cause value; After MTCUE receives the off-line request of SGSN transmission, initiate off-line acceptance response at any time to SGSN; After SGSN receives off-line acceptance response, initiate PS signaling connection release message to RNS, the PS signalling path of release RNS to SGSN, discharges wireless signaling passage by RNS.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (11)

1. a method for cordless communication network notice equipment for machine type communication off-line, it is characterized in that, the method comprises:
The chain of command network element of cordless communication network is attached to the CAMEL-Subscription-Information of the equipment for machine type communication (MTCUE) of cordless communication network from home domain data server network element download request, the CAMEL-Subscription-Information of described MTCUE comprises the signing sporadic data transmission characteristic having described MTCUE;
Determine MTCUE DTD at cordless communication network, and when determining that described MTCUE is signing have a sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, cordless communication network carries out off-line operation to described MTCUE.
2. method according to claim 1, it is characterized in that, described 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; Described 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, described cordless communication network determines MTCUE DTD, for: the signaling connection release message that the chain of command network element of cordless communication network is sent by wireless side network element determines MTCUE DTD;
Or, after the chain of command network element of cordless communication network receives the deletion media bearer request message that user's veil unit sends, discharge described media bearer resource, and after the media bearer described MTCUE being detected is all deleted, determine MTCUE DTD; Described media bearer is specialized media carrying or default bearing.
4. method according to claim 3, it is characterized in that, before described chain of command network element receives the deletion media bearer request message of user's veil unit transmission, the method also comprises: described user's veil unit determines the DTD of described media bearer between MTCUE and machine type communication server (MTCServer).
5. method according to claim 4, is characterized in that, described user's veil unit determines the DTD of described media bearer between MTCUE and MTCServer, comprising:
If user's veil unit detects that described media bearer is idle for a long time, just determine the DTD of this media bearer;
Or, MTCServer with MTCUE DTD after, to user's veil, unit sends DTD notification message, after described user's veil unit receives DTD notification message, determines the DTD of this media bearer;
Or, the mark of DTD is carried in the packet header of MTCServer in the end end data packet, user's veil unit adopts deep-packet detection to packet, detect from the packet header of packet and whether have DTD to mark, if comprise this mark, just determine the DTD of this media bearer.
6. method according to claim 5, is characterized in that, described wireless side network element comprises: the enode b (eNodeB) of EPS network or the Radio Network System (RNS) of GPRS network;
Described user's veil unit comprises: the packet data network gateway (P-GW) of EPS network or the Gateway GPRS Support Node (GGSN) of GPRS network.
7. method according to claim 1, is characterized in that, the method comprises further: before notifying that described MTCUE carries out off-line operation, starts timer and carries out time delay.
8. a cordless communication network, it is characterized in that, this cordless communication network comprises: chain of command network element, for being attached to the CAMEL-Subscription-Information of the MTCUE of cordless communication network from home domain data server network element download request, the CAMEL-Subscription-Information of described MTCUE comprises the signing sporadic data transmission characteristic having described MTCUE; And determining MTCUE DTD, and when determining that described MTCUE is signing have a sporadic data transmission characteristic according to the CAMEL-Subscription-Information obtained, off-line operation is carried out to described MTCUE.
9. cordless communication network according to claim 8, is characterized in that, this cordless communication network further comprises wireless side network element, for sending signaling connection release message to chain of command network element;
Accordingly, described chain of command network element, the signaling connection release message also for being sent by wireless side network element determines MTCUE DTD.
10. cordless communication network according to claim 8, it is characterized in that, this network further comprises user's veil unit, for determining the DTD of media bearer between MTCUE and MTCServer, and sends deletion media bearer request message to chain of command network element;
Accordingly, described chain of command network element, also for after receiving deletion media bearer request message that user's veil unit sends, discharges described media bearer resource, and after detecting that described media bearer is all deleted, determines MTCUE DTD.
11. cordless communication networks according to claim 8, is characterized in that, described chain of command network element, further also for before notifying that described MTCUE carries out off-line operation, start timer and carry out time delay.
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