CN103546884A - Machine type communication system, and method and devices for transmitting data of machine type communication system - Google Patents

Machine type communication system, and method and devices for transmitting data of machine type communication system Download PDF

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Publication number
CN103546884A
CN103546884A CN201210237774.7A CN201210237774A CN103546884A CN 103546884 A CN103546884 A CN 103546884A CN 201210237774 A CN201210237774 A CN 201210237774A CN 103546884 A CN103546884 A CN 103546884A
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mtc
iwf
former
message
terminal
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CN201210237774.7A
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CN103546884B (en
Inventor
王胡成
艾明
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Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/02Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08Mobility data transfer
    • H04W8/10Mobility data transfer between location register and external networks

Abstract

An embodiment of the invention discloses a machine type communication (MTC) system, and a method and devices for transmitting data of the machine type communication system, and relates to the field of wireless communication. The machine type communication system, the method and the devices are used for reducing signaling interaction among different public land mobile networks (PLMN) so as to save signaling resources. The machine type communication system, the method and the devices have the advantages that an original MTC internetworking function (MTC-IWF) server in a home public land mobile network (HPLMN) accesses proxy MTC-IWF server in visited public land mobile networks VPLMN, so that the data can be transmitted among the original MTC internetworking function MTC-IWF server and core network control devices in the VPLMN, establishment and maintenance on connections among the original MTC-IWF server in the HPLMN and the various core network control devices in the VPLMN can be omitted, signaling interaction among the different PLMN is reduced, and the signaling resources can be saved.

Description

Machine type communication system and data transmission method thereof and equipment
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of machine type communication system and data transmission method and equipment.
Background technology
At present at third generation collaborative project (Third Generation Partnership Project, 3GPP) in the network architecture, introduce machine type communication (Machine Type Communications, MTC) framework, service capability server (Services Capability Server wherein, SCS) and between 3GPP core net, to have increased new node be MTC interlink server (Interworking Function, MTC-IWF), the Main Function of MTC-IWF is to MTC server (server) shielding 3GPP topology of networks, interface with 3GPP network is provided.
As shown in Figure 1, SCS only has connection with the MTC-IWF of local public land mobile network (Home Public Land Mobile Network, HPLMN) to the framework of MTC system, and MTCsp interface is the interface of the MTC-IWF of SCS and HPLMN.The MTC-IWF of HPLMN and visit public land mobile network (Visited Public Land Mobile Network, VPLMN) Serving GPRS Support Node (Serving GPRS Support Node, SGSN), Mobility Management Entity (Mobility Management Entity, MME), between mobile services switching centre (Mobile Services Switching Center, MSC), can there is roaming interface T5a, T5b, T5c.In Fig. 1, UE is terminal (User Equipment), RAN is Radio Access Network (Radio Access Network), S-GW is gateway (Serving GateWay), IP-SM-GW is IP short messaging gateway (IP-Short Message-GateWay), SMC-SC/GMSC/IWMSC is Short Message Service service center/gateway media switching center/interoperability media exchange center, SME is Short Message Entity (Short Message Entity), CDF is charging data function entity (Charging Data Function), CGF is charging gateway function body (Charging Gateway Function), HSS is home signature user server (Home Subscriber Server), GGSN is Gateway GPRS Support Node (Gateway GPRS Support Node), P-GW is packet data gateway (Packet Data Network-Gateway), AS is application server (Application Server).
In 3GPP TS23.682 standard, for the triggering terminal flow process based on T4 Interface realization under roaming scence, formed as drawn a conclusion, as shown in Figure 2, specifically described as follows:
Step 1, SCS are in needs triggering terminal, so that terminal and network side are when establish a communications link, if SCS does not have the detailed contact details of MTC-IWF, use the outside sign of terminal from name server (Directory Name Service, DNS) inquiry, to obtain IP address and the port numbers of MTC-IWF.
Step 2, SCS be to MTC-IWF transmitting terminal triggering request, the information such as the outside sign that comprises terminal in this terminal triggering request, life cycle, priority and SCS ID.
Step 3, MTC-IWF check that the whether authorized transmission of SCS triggers message and whether SCS exceeds quota or the speed of submitting trigger request to.If the inspection of MTC-IWF failure, returns to error reporting and ends flow process.
Step 4, MTC-IWF send user information request (Subscriber Information Request) message to HSS, to check whether SCS is authorized to send and trigger message to counterpart terminal, and obtain the sign of the IMSI of terminal and the current service node (serving node) of terminal.
Step 5, HSS send user profile response (Subscriber Information Response) message to SCS.If the reason in user profile response message (cause) value indication SCS does not allow to send and trigger message or there is no effective CAMEL-Subscription-Information to counterpart terminal, MTC-IWF sends failed message to SCS and ends flow process.
Step 6a, MTC-IWF select to trigger the transmission means of message, if selected T5 terminal to trigger transmission of messages mode, MTC-IWF carries out T5 terminal and triggers transmission of messages flow process.
If step 6b T5 terminal triggers the failure of transmission of messages flow process, or select T4 terminal to trigger transmission of messages mode, MTC-IWF carries out T4 terminal and triggers transmission of messages flow process.
Step 7, MTC-IWF trigger report to SCS transmitting terminal, and the cause value in terminal triggering report indicates trigger request and is accepted, is transmitted or bust this.
Step 8, terminal are when receiving that terminal triggers (Device Trigger) message, according to the content in triggering load (Trigger payload) territory in this message, carry out certain operations, comprise at once or the communication process of initiation after a while and SCS or application server (AS).
Visible, in prior art, UE is when roaming state, if AS need to trigger UE, AS can be by SCS the MTC-IWF transmitting terminal triggering request to HPLMN, when terminal triggering request arrives after MTC-IWF, MTC-IWF obtains the current service node of terminal by inquiry HSS, then by service node, terminal being triggered to message sends, the connection that now need to set up T5a/T5b/T5c interface between the MTC-IWF of HPLMN and the SGSN/MME/MSC of VPLMN, can cause following 2 problems like this:
The MTC-IWF of the first, HPLMN need to set up and the too many SGSN/MME/MSC of maintenance and VPLMN between be connected, cause the signaling of MTC-IWF of HPLMN and the expense of resource larger.
Second, certain service node that passes through VPLMN as the MTC-IWF of HPLMN triggers after UE failure, the service node of this VPLMN need to be passed failed message back the MTC-IWF of HPLMN, then MTC-IWF ability retry carries out the triggering of terminal by other serving node of VPLMN, cause like this between different PLMN Signalling exchange frequently, waste signal resource.
Summary of the invention
The embodiment of the present invention provides a kind of machine type communication system and data transmission method and equipment, for reducing the Signalling exchange between different PLMN, to save signal resource.
A MTC communication system, this system comprises:
Be arranged on service capability server SCS and the former MTC interlink server MTC-IWF of local public land mobile network HPLMN, and be arranged on visit public land mobile network VPLMN act on behalf of MTC-IWF and core net control appliance; Wherein, described former MTC-IWF is connected with the described MTC-IWF of agency with described SCS, and the described MTC-IWF of agency is also connected with described core net control appliance;
Described former MTC-IWF, for sending to the described MTC-IWF of agency by the downstream message from described SCS receiving; The upstream message from the described MTC-IWF of agency receiving is sent to described SCS;
The described MTC-IWF that acts on behalf of, for sending to described core net control appliance by the downstream message from described former MTC-IWF receiving; The upstream message from described core net control appliance receiving is sent to described former MTC-IWF;
Described core net control appliance, for sending the downstream message from the described MTC-IWF of agency receiving; The upstream message that the terminal receiving is sent sends to the described MTC-IWF of agency.
A MTC-IWF, this former MTC-IWF comprises:
Downlink transfer unit, for by the downstream message from SCS receiving, sends to and acts on behalf of MTC-IWF; The MTC-IWF arranging in the HPLMN that this former MTC-IWF is terminal, the described MTC-IWF of agency is the MTC-IWF arranging in the VPLMN at the current place of terminal;
Uplink unit, for sending to described SCS by the upstream message from the described MTC-IWF of agency receiving.
A MTC-IWF, this is acted on behalf of MTC-IWF and comprises:
Downlink transfer unit, for sending to core net control appliance by the downstream message from former MTC-IWF receiving; The MTC-IWF arranging in the HPLMN that described former MTC-IWF is terminal, this acts on behalf of MTC-IWF is the MTC-IWF arranging in the VPLMN at the current place of terminal;
Uplink unit, for sending to described former MTC-IWF by the upstream message from core net control appliance receiving.
A control appliance, this core net control appliance comprises:
Downlink transfer unit, for sending the downstream message from acting on behalf of MTC-IWF receiving; The described MTC-IWF of agency is the MTC-IWF arranging in the VPLMN at the current place of terminal;
Uplink unit, sends to the described MTC-IWF of agency for the upstream message that the terminal receiving is sent.
A data transmission method under roaming scence, the method comprises:
Be arranged on former MTC-IWF in HPLMN by the downstream message from SCS receiving, send to and act on behalf of MTC-IWF; The described MTC-IWF of agency is the MTC-IWF arranging in the VPLMN at the current place of terminal; And,
Described former MTC-IWF sends to described SCS by the upstream message from the described MTC-IWF of agency receiving.
A data transmission method under roaming scence, the method comprises:
The MTC-IWF that acts on behalf of being arranged in VPLMN sends to core net control appliance by the downstream message from former MTC-IWF receiving; The MTC-IWF arranging in the HPLMN that described former MTC-IWF is terminal;
The described MTC-IWF of agency sends to described former MTC-IWF by the upstream message from core net control appliance receiving.
A data transmission method under roaming scence, the method comprises:
Core net control appliance sends the downstream message from acting on behalf of MTC-IWF receiving; The described MTC-IWF of agency is the MTC-IWF arranging in the VPLMN at the current place of terminal;
The upstream message that described core net control appliance sends the terminal receiving sends to the described MTC-IWF of agency.
In the scheme that the embodiment of the present invention provides, in VPLMN, increase to arrange and act on behalf of MTC-IWF, former MTC-IWF in HPLMN sends to the core net control appliance in VPLMN by acting on behalf of MTC-IWF by downstream message, core net control appliance in VPLMN sends to former MTC-IWF by acting on behalf of MTC-IWF by upstream message, also be that former MTC-IWF in HPLMN carries out transfer of data by the core net control appliance of acting on behalf of in MTC-IWF and VPLMN, former MTC-IWF in visible HPLMN does not need to set up with safeguarding and be connected with each core net control appliance in VPLMN, thereby reduced the Signalling exchange between different PLMN, saved signal resource.
Accompanying drawing explanation
Fig. 1 is MTC system architecture schematic diagram of the prior art;
Fig. 2 is that terminal of the prior art triggers schematic flow sheet;
The MTC system configuration schematic diagram that Fig. 3 provides for the embodiment of the present invention;
The structural representation of the former MTC-IWF that Fig. 4 provides for the embodiment of the present invention;
The structural representation of acting on behalf of MTC-IWF that Fig. 5 provides for the embodiment of the present invention;
The structural representation of the core net control appliance that Fig. 6 provides for the embodiment of the present invention;
The transfer of data flow process schematic diagram of the former MTC-IWF side that Fig. 7 provides for the embodiment of the present invention;
The transfer of data flow process schematic diagram of acting on behalf of MTC-IWF side that Fig. 8 provides for the embodiment of the present invention;
The transfer of data flow process schematic diagram of the core net control appliance side that Fig. 9 provides for the embodiment of the present invention.
Embodiment
In order to reduce the Signalling exchange between different PLMN, to save signal resource, the embodiment of the present invention provides a kind of MTC communication system.In native system, in VPLMN, increase to arrange and act on behalf of MTC-IWF, the MTC-IWF in HPLMN be former MTC-IWF by acting on behalf of MTC-IWF, carry out transfer of data with the core net control appliance in VPLMN.
Referring to Fig. 3, the MTC communication system that the embodiment of the present invention provides, comprising: be arranged on SCS30 and the former MTC-IWF31 of HPLMN, and be arranged on VPLMN act on behalf of MTC-IWF31 and core net control appliance 33; Wherein, former MTC-IWF31 and SCS30 with act on behalf of MTC-IWF32 and be connected, act on behalf of MTC-IWF32 and also for example, be connected with Short Message Service Center (SMC-SC/GMSC/IWMSC) with core net control appliance 33; Herein, the PLMN that HPLMN is endpoint registration, VPLMN is the PLMN at the current place of terminal.Concrete:
Former MTC-IWF31, for sending to and act on behalf of MTC-IWF32 from downstream message SCS30, that need to send to terminal what receiving; The upstream message from acting on behalf of MTC-IWF receiving is sent to SCS;
Act on behalf of MTC-IWF32, for the downstream message from former MTC-IWF31 receiving is sent to core net control appliance 33; The upstream message from core net control appliance 33 receiving is sent to former MTC-IWF31;
Core net control appliance 33, for sending the downstream message from acting on behalf of MTC-IWF32 receiving; The upstream message that the terminal receiving is sent sends to acts on behalf of MTC-IWF32.Here, core net control appliance bag can comprise one or more in MSC, MME, SGSN.
Further, this system also comprises the home signature user server (HSS) 34 being connected with former MTC-IWF31;
Accordingly, former MTC-IWF31 also for: before sending to from downstream message SCS30, that need to send to terminal of receiving acted on behalf of to MTC-IWF32, from HSS34, obtain the information of the service node of this terminal, according to the information of the service node obtaining, judge that whether this terminal is in roaming state, when being judged as YES, downstream message is sent to and acts on behalf of MTC-IWF32, when being judged as NO, according to existing procedure, send downstream message.It should be noted that, the service node of terminal is the one or more core net control appliances in the PLMN at the current place of terminal; According to the information of the service node obtaining judge this terminal whether the method in roaming state be: if the core net control appliance that the service node of this terminal is HPLMN, this terminal is in roaming state, otherwise this terminal is in roaming state.
Further, former MTC-IWF31 also for: before downstream message sent to acting on behalf of MTC-IWF32, according to the information of the service node obtaining, search the information of acting on behalf of MTC-IWF (for example address information) of serving this service node in VPLMN, and according to the information finding, downstream message is sent to and acts on behalf of MTC-IWF32.Here, according to the information of the service node obtaining, search the information of acting on behalf of MTC-IWF of serving this service node in VPLMN, can be specifically the information of acting on behalf of MTC-IWF of serving this service node from dns lookup VPLMN, now need the information of acting on behalf of MTC-IWF of configuration service each core net control appliance in VPLMN in DNS in advance; Or, can be also from local configuration information, to search the information of acting on behalf of MTC-IWF of serving this service node in VPLMN, now need in advance the information of acting on behalf of MTC-IWF at local configuration service each core net control appliance in VPLMN.
Further, former MTC-IWF31 also for: before downstream message is sent to acting on behalf of MTC-IWF32, for example, using the information of the core net control appliance of the service node as terminal (address information), be carried in downstream message;
Accordingly, act on behalf of MTC-IWF32 also for: before the downstream message from former MTC-IWF31 receiving is sent to core net control appliance 33, the information (for example address information) that obtains core net control appliance by resolving downstream message, the information obtaining according to parsing sends to core net control appliance 33 by downstream message.
Further, core net control appliance 33 also for: before the upstream message that the terminal receiving is sent sends to and acts on behalf of MTC-IWF32, according to the international mobile subscriber identification code of this terminal of carrying in upstream message (IMSI), judge that whether this terminal is in roaming state, when being judged as YES, upstream message is sent to and acts on behalf of MTC-IWF32, when being judged as NO, according to existing procedure, send upstream message.
Further, core net control appliance 33 also for: before upstream message sent to acting on behalf of MTC-IWF32, from local configuration information, search the information of acting on behalf of MTC-IWF (for example address information) of serving this core net control appliance, and according to the information finding, upstream message is sent to and acts on behalf of MTC-IWF32.
Further, act on behalf of MTC-IWF32 also for: before the upstream message from core net control appliance 33 receiving is sent to former MTC-IWF31, according to the relevant information of carrying in upstream message, search the information of the former MTC-IWF arranging in the HPLMN of terminal, and according to the information finding, described upstream message is sent to described former MTC-IWF31; Here, according to the relevant information of carrying in upstream message, search the information of the former MTC-IWF arranging in the HPLMN of terminal, can be specifically outside sign or other information (such as the total quality domain name (FQDN) of MTC-IWF) according to the terminal of carrying in upstream message, the information of the former MTC-IWF arranging from the HPLMN of dns lookup terminal, or, the information of searching the former MTC-IWF arranging in the HPLMN of terminal from local configuration information.
Act on behalf of MTC-IWF32 for: for example, by acting on behalf of the interface (Tpm interface) of having set up between MTC-IWF32 and former MTC-IWF31, the upstream message from core net control appliance 33 receiving is sent to former MTC-IWF31; This interface is to acting on behalf of the interface of setting up when MTC-IWF32 sends downstream message at former MTC-IWF31.
Downstream message in the present invention can be that terminal triggers message etc.; Upstream message can be that the terminal of this terminal triggering message is triggered to report etc.
Receive terminal and trigger after report acting on behalf of MTC-IWF32, if trigger according to this terminal the bust this that report judgement terminal triggers message, this terminal is not triggered to report and send to the former MTC-IWF31 in HPLMN, but reselect other core net control appliances, and by the core net control appliance reselecting, terminal is triggered to message and send, thereby avoided that the terminal of bust this is triggered to report and sent to the former MTC-IWF31 in HPLMN, further reduce the signalling between different PLMN, saved signal resource.If trigger according to this terminal the transmission success that report judgement terminal triggers message, this terminal triggered to report and send to the former MTC-IWF31 in HPLMN.
Referring to Fig. 4, the embodiment of the present invention provides a kind of former MTC-IWF, and this former MTC-IWF comprises:
Downlink transfer unit 40, for by receive from downstream message SCS, that need to send to terminal, send to and act on behalf of MTC-IWF; The MTC-IWF arranging in the HPLMN that this former MTC-IWF is terminal, acting on behalf of MTC-IWF is the MTC-IWF arranging in the VPLMN at the current place of terminal;
Uplink unit 41, for sending to SCS by the upstream message from acting on behalf of MTC-IWF receiving.
Further, this former MTC-IWF also comprises:
Roaming judging unit 42, before in downlink transfer unit, downstream message being sent to and acting on behalf of MTC-IWF, obtains the information of the service node of terminal from HSS, according to the information of the service node obtaining, judge that whether terminal is in roaming state;
Described downlink transfer unit 40 for: when roaming being judged as YES of judging unit, downstream message is sent to and acts on behalf of MTC-IWF; When being judged as NO, according to existing procedure, send downstream message.It should be noted that, the service node of terminal is the one or more core net control appliances in the PLMN at the current place of terminal; According to the information of the service node obtaining judge this terminal whether the method in roaming state be: if the core net control appliance that the service node of this terminal is HPLMN, this terminal is in roaming state, otherwise this terminal is in roaming state.
Further, this former MTC-IWF also comprises:
Information searching unit 43, for before downstream message being sent in downlink transfer unit and acting on behalf of MTC-IWF, the information of the service node obtaining according to roaming judging unit, searches the information of acting on behalf of MTC-IWF of serving this service node in VPLMN; Here, according to the information of the service node obtaining, searching the information of acting on behalf of MTC-IWF of serving this service node in VPLMN, can be specifically the information of acting on behalf of MTC-IWF of serving this service node from dns lookup VPLMN; Or, can be also from local configuration information, to search the information of acting on behalf of MTC-IWF of serving this service node in VPLMN.
Accordingly, downlink transfer unit 40 for: the information finding according to information searching unit, sends to downstream message to act on behalf of MTC-IWF.
Further, downlink transfer unit 40 also for:
Before downstream message is sent to acting on behalf of MTC-IWF, the information using the core net control appliance of the service node as terminal, is carried in downstream message, for follow-up downstream message transmission.
Referring to Fig. 5, the embodiment of the present invention provides a kind of MTC-IWF of agency, and this is acted on behalf of MTC-IWF and comprises:
Downlink transfer unit 50, for sending to core net control appliance by the downstream message from former MTC-IWF receiving; Former MTC-IWF is the MTC-IWF arranging in the HPLMN of terminal, and acting on behalf of MTC-IWF is the MTC-IWF arranging in the VPLMN at the current place of terminal;
Uplink unit 51, for sending to former MTC-IWF by the upstream message from core net control appliance receiving.
Further, this is acted on behalf of MTC-IWF and also comprises:
Message parse unit 52, before the downstream message from former MTC-IWF receiving being sent to core net control appliance in downlink transfer unit, obtains the information of core net control appliance by resolving downstream message;
Accordingly, downlink transfer unit 50 for: the information obtaining according to message parse unit resolves, sends to core net control appliance by downstream message.
Further, this is acted on behalf of MTC-IWF and also comprises:
Information searching unit 53, for before uplink unit sends to former MTC-IWF by the upstream message from core net control appliance receiving, according to the relevant information of carrying in upstream message, search the information of the former MTC-IWF arranging in the HPLMN of this terminal; Here, according to the relevant information of carrying in upstream message, search the information of the former MTC-IWF arranging in the HPLMN of terminal, can be specifically outside sign or other information (such as the FQDN of MTC-IWF) according to the terminal of carrying in upstream message, the information of the former MTC-IWF arranging from the HPLMN of dns lookup terminal, or, the information of searching the former MTC-IWF arranging in the HPLMN of terminal from local configuration information.Accordingly, uplink unit 51, for the information finding according to information searching unit, sends to described former MTC-IWF by upstream message.Or,
Uplink unit 51 for: by this, act on behalf of the interface of having set up between MTC-IWF and former MTC-IWF, the upstream message from core net control appliance receiving sent to former MTC-IWF; This interface is to this, to act on behalf of the interface of setting up when MTC-IWF sends downstream message at former MTC-IWF.
The upstream message receiving in the uplink unit 51 of acting on behalf of MTC-IWF is that terminal triggers while reporting, if trigger according to this terminal the bust this that report judgement terminal triggers message, this terminal is not triggered to report and send to the former MTC-IWF in HPLMN, but reselect other core net control appliances, and by the core net control appliance reselecting, terminal is triggered to message and send, thereby avoided that the terminal of bust this is triggered to report and sent to the former MTC-IWF in HPLMN, further reduced the signalling between different PLMN, saved signal resource.If trigger according to this terminal the transmission success that report judgement terminal triggers message, this terminal triggered to report and send to the former MTC-IWF in HPLMN.
Referring to Fig. 6, the embodiment of the present invention provides a kind of core net control appliance, and this core net control appliance comprises:
Downlink transfer unit 60, for sending the downstream message from acting on behalf of MTC-IWF receiving according to existing method; Acting on behalf of MTC-IWF is the MTC-IWF arranging in the VPLMN at the current place of terminal;
Uplink unit 61, sends to and acts on behalf of MTC-IWF for the upstream message that the terminal receiving is sent.
Further, this core net control appliance also comprises:
Roaming judging unit 62, before sending to and act on behalf of MTC-IWF, according to the IMSI of this terminal of carrying in upstream message, judges that whether terminal is in roaming state for the upstream message the terminal receiving is sent;
Uplink unit 61 for: when roaming being judged as YES of judging unit, upstream message is sent to and acts on behalf of MTC-IWF, when being judged as NO, according to existing procedure, send upstream message.
Further, this core net control appliance also comprises:
The information of acting on behalf of MTC-IWF of serving this core net control appliance for before upstream message being sent in uplink unit and acting on behalf of MTC-IWF, is searched in information searching unit 63 from local configuration information;
Accordingly, uplink unit 61 for: the information finding according to information searching unit, sends to upstream message to act on behalf of MTC-IWF.
Referring to Fig. 7, the embodiment of the present invention provides for the data transmission method under the roaming scence of former MTC-IWF, comprises the following steps:
Step 70: be arranged on former MTC-IWF in HPLMN by the downstream message from SCS receiving, send to and act on behalf of MTC-IWF; Acting on behalf of MTC-IWF is the MTC-IWF arranging in the VPLMN at the current place of terminal;
Step 71: former MTC-IWF sends to described SCS by the upstream message from acting on behalf of MTC-IWF receiving.
It should be noted that between step 70 and step 71, there is no strict time sequencing, is also that step 71 can, in the rear execution of step 70, can, in the front execution of step 70, can also be also to carry out with step 70 simultaneously.
Preferably, in step 70, former MTC-IWF in being arranged on the HPLMN of terminal is by the downstream message from SCS receiving, before sending to and acting on behalf of MTC-IWF, former MTC-IWF obtains the information of the service node of terminal from HSS, according to the information of the service node obtaining, judge that whether terminal is in roaming state; When judging terminal in roaming state, downstream message is sent to and acts on behalf of MTC-IWF.
Concrete, in step 70, downstream message is sent to and acts on behalf of MTC-IWF, be implemented as follows: according to the information of the service node obtaining, search the information of acting on behalf of MTC-IWF of serving this service node in VPLMN; According to the information finding, downstream message is sent to and acts on behalf of MTC-IWF.
Preferably, before downstream message is sent to acting on behalf of MTC-IWF, the information using the core net control appliance of the service node as terminal, is carried in downstream message.
Referring to Fig. 8, the embodiment of the present invention provides for the data transmission method of acting on behalf of under the roaming scence of MTC-IWF, comprises the following steps:
Step 80: the MTC-IWF that acts on behalf of being arranged in VPLMN sends to core net control appliance by the downstream message from former MTC-IWF receiving; Former MTC-IWF is the MTC-IWF arranging in the HPLMN of terminal;
Step 81: act on behalf of MTC-IWF the upstream message from core net control appliance receiving is sent to former MTC-IWF.
It should be noted that between step 80 and step 81, there is no strict time sequencing, is also that step 81 can, in step execution after 80s, can, in the front execution of step 80, can also be also to carry out with step 80 simultaneously.
Concrete, in step 80, acting on behalf of before MTC-IWF sends to core net control appliance by the downstream message from former MTC-IWF receiving, by resolving downstream message, obtain the information of core net control appliance; The information obtaining according to parsing, sends to core net control appliance by downstream message.
Concrete, in step 81, act on behalf of MTC-IWF the upstream message from core net control appliance receiving is sent to former MTC-IWF, be implemented as follows: act on behalf of MTC-IWF according to the relevant information of carrying in upstream message, search the information of the former MTC-IWF arranging in the HPLMN of this terminal; According to the information finding, upstream message is sent to described former MTC-IWF; Or,
Act on behalf of MTC-IWF and act on behalf of by this interface of having set up between MTC-IWF and former MTC-IWF, the upstream message from core net control appliance receiving is sent to former MTC-IWF; This interface is to this, to act on behalf of the interface of setting up when MTC-IWF sends downstream message at described former MTC-IWF.
Acting on behalf of upstream message that MTC-IWF receives, be that terminal is while triggering report, if trigger according to this terminal the bust this that report judgement terminal triggers message, this terminal is not triggered to report and send to the former MTC-IWF in HPLMN, but reselect other core net control appliances, and by the core net control appliance reselecting, terminal is triggered to message and send, thereby avoided that the terminal of bust this is triggered to report and sent to the former MTC-IWF in HPLMN, further reduce the signalling between different PLMN, saved signal resource.If trigger according to this terminal the transmission success that report judgement terminal triggers message, this terminal triggered to report and send to the former MTC-IWF in HPLMN.
Referring to Fig. 9, the embodiment of the present invention provides for the data transmission method under the roaming scence of core net control appliance, comprises the following steps:
Step 90: core net control appliance sends the downstream message from acting on behalf of MTC-IWF receiving; Acting on behalf of MTC-IWF is the MTC-IWF arranging in the VPLMN at the current place of terminal;
Step 91: the upstream message that core net control appliance sends the terminal receiving sends to acts on behalf of MTC-IWF.
Preferably, before the upstream message of at core net control appliance, the terminal receiving being sent in step 91 sends to and acts on behalf of MTC-IWF, according to the IMSI of this terminal of carrying in upstream message, judge that whether terminal is in roaming state; When judging terminal in roaming state, upstream message is sent to and acts on behalf of MTC-IWF.
Concrete, the upstream message that in step 91, core network control control equipment sends the terminal receiving sends to acts on behalf of MTC-IWF, is implemented as follows: from local configuration information, search the information of acting on behalf of MTC-IWF of serving this core net control appliance; According to the information finding, upstream message is sent to and acts on behalf of MTC-IWF.
At downstream message, be that terminal triggers message, upstream message triggers report for terminal being triggered to the terminal of message, concrete agreement flow process is as follows:
The former MTC-IWF of step 1, HPLMN receives that from Tsp interface terminal triggers message, finds the information of the service node of current UE, and determines that according to the information finding whether UE is in roaming state in HSS according to prior art;
Step 2, when former MTC-IWF determines UE in roaming state, according to the ID of service node, search the information of acting on behalf of MTC-IWF of serving this service node in VPLMN;
Step 3, former MTC-IWF trigger message by terminal and pass to and act on behalf of MTC-IWF;
Step 4, act on behalf of the method that MTC-IWF triggers UE according to existing MTC-IWF and come transmitting terminal to trigger message;
Step 5, act on behalf of MTC-IWF the terminal received from SGSN/MME/MSC is triggered to the MTC-IWF that report sends to HPLMN.
Embodiment mono-:
Concrete steps are as follows:
Step 1, on DNS for the core net control appliance in this PLMN is the information of SGSN/MME/MSC Configuration Agent MTC-IWF;
The former MTC-IWF of step 2, HPLMN receives that from Tsp interface terminal triggers message, finds the information of the service node of current UE, and determines that according to the information finding whether UE is in roaming state in HSS according to prior art;
Step 3, when former MTC-IWF determines UE in roaming state, according to the ID of service node, search the information of acting on behalf of MTC-IWF of serving this service node in VPLMN;
Step 4, former MTC-IWF, by carrying the terminal trigger message of the information of service node, are passed to and are acted on behalf of MTC-IWF by Tpm interface;
Step 5, act on behalf of the method that MTC-IWF triggers UE according to existing MTC-IWF and come transmitting terminal to trigger message;
Step 6, act on behalf of MTC-IWF the terminal received from SGSN/MME/MSC is triggered to report, before passing to by the Tpm interface of having set up, receive that terminal triggers the former MTC-IWF of the HPLMN of message.
Embodiment bis-:
Step 1, with step 1-step 5 of embodiment mono-;
Step 2, act on behalf of MTC-IWF and (for example: the FQDN of MTC-IWF) search the former MTC-IWF of the HPLMN of terminal, and terminal is triggered to report pass to this former MTC-IWF trigger the outside sign of the terminal report or other information according to the terminal received from SGSN/MME/MSC.
To sum up, beneficial effect of the present invention comprises:
In the scheme that the embodiment of the present invention provides, in VPLMN, increase to arrange and act on behalf of MTC-IWF, former MTC-IWF in HPLMN sends to the core net control appliance in VPLMN by acting on behalf of MTC-IWF by downstream message, core net control appliance in VPLMN sends to former MTC-IWF by acting on behalf of MTC-IWF by upstream message, also be that former MTC-IWF in HPLMN carries out transfer of data by the core net control appliance of acting on behalf of in MTC-IWF and VPLMN, former MTC-IWF in visible HPLMN does not need to set up with safeguarding and be connected with each core net control appliance in VPLMN, thereby reduced the Signalling exchange between different PLMN, saved signal resource.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be in computer program instructions realization flow figure and/or block diagram each flow process and/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction of carrying out by the processor of computer or other programmable data processing device is produced for realizing the device in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame on computer or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.

Claims (31)

1. a machine type communication MTC system, is characterized in that, this system comprises:
Be arranged on service capability server SCS and the former MTC interlink server MTC-IWF of local public land mobile network HPLMN, and be arranged on visit public land mobile network VPLMN act on behalf of MTC-IWF and core net control appliance; Wherein, described former MTC-IWF is connected with the described MTC-IWF of agency with described SCS, and the described MTC-IWF of agency is also connected with described core net control appliance;
Described former MTC-IWF, for sending to the described MTC-IWF of agency by the downstream message from described SCS receiving; The upstream message from the described MTC-IWF of agency receiving is sent to described SCS;
The described MTC-IWF that acts on behalf of, for sending to described core net control appliance by the downstream message from described former MTC-IWF receiving; The upstream message from described core net control appliance receiving is sent to described former MTC-IWF;
Described core net control appliance, for sending the downstream message from the described MTC-IWF of agency receiving; The upstream message that the terminal receiving is sent sends to the described MTC-IWF of agency.
2. the system as claimed in claim 1, is characterized in that, this system also comprises the home signature user server HSS being connected with described former MTC-IWF;
Described former MTC-IWF also for: before the downstream message from described SCS receiving is sent to the described MTC-IWF of agency, from described HSS, obtain the information of the service node of described terminal, according to the information of the service node obtaining, judge that whether described terminal is in roaming state, when being judged as YES, described downstream message is sent to the described MTC-IWF of agency.
3. system as claimed in claim 2, is characterized in that, described former MTC-IWF also for:
Before described downstream message is sent to the described MTC-IWF of agency, according to the information of the service node obtaining, search the information of acting on behalf of MTC-IWF of serving this service node in VPLMN, and according to the information finding, described downstream message is sent to the described MTC-IWF of agency.
4. system as claimed in claim 2, is characterized in that, described former MTC-IWF also for:
Before described downstream message is sent to the described MTC-IWF of agency, using the information of the core net control appliance of the service node as described terminal, be carried in described downstream message;
Described act on behalf of MTC-IWF also for:
Before the downstream message from described former MTC-IWF receiving is sent to described core net control appliance, by resolving described downstream message, obtain the information of core net control appliance, the information obtaining according to parsing sends to described core net control appliance by described downstream message.
5. the system as claimed in claim 1, is characterized in that, described core net control appliance also for:
Before the upstream message that the terminal receiving is sent sends to the described MTC-IWF of agency, according to the international mobile subscriber identification code IMSI of this terminal of carrying in described upstream message, judge that whether described terminal is in roaming state, when being judged as YES, described upstream message is sent to the described MTC-IWF of agency.
6. system as claimed in claim 5, is characterized in that, described core net control appliance also for:
Before described upstream message is sent to the described MTC-IWF of agency, from local configuration information, search the information of acting on behalf of MTC-IWF of serving this core net control appliance, and according to the information finding, described upstream message is sent to the described MTC-IWF of agency.
7. the system as claimed in claim 1, is characterized in that, described act on behalf of MTC-IWF also for:
Before the upstream message from described core net control appliance receiving is sent to described former MTC-IWF, according to the relevant information of carrying in described upstream message, search the information of the former MTC-IWF arranging in the HPLMN of described terminal, and according to the information finding, described upstream message is sent to described former MTC-IWF.
8. the system as claimed in claim 1, is characterized in that, described act on behalf of MTC-IWF for:
Interface by having set up between the described MTC-IWF of agency and described former MTC-IWF, sends to described former MTC-IWF by the upstream message from described core net control appliance receiving; Described interface is set up when the described MTC-IWF of agency sends downstream message at described former MTC-IWF.
9. as the system as described in arbitrary in claim 1-8, it is characterized in that, described downstream message is that terminal triggers message; Described upstream message is described terminal to be triggered to the terminal triggering report of message.
10. a former MTC-IWF, is characterized in that, this former MTC-IWF comprises:
Downlink transfer unit, for by the downstream message from SCS receiving, sends to and acts on behalf of MTC-IWF; The MTC-IWF arranging in the HPLMN that this former MTC-IWF is terminal, the described MTC-IWF of agency is the MTC-IWF arranging in the VPLMN at the current place of terminal;
Uplink unit, for sending to described SCS by the upstream message from the described MTC-IWF of agency receiving.
11. former MTC-IWF as claimed in claim 10, is characterized in that, this former MTC-IWF also comprises:
Roaming judging unit, before described downlink transfer unit sends to the described MTC-IWF of agency by described downstream message, obtains the information of the service node of described terminal from HSS, according to the information of the service node obtaining, judge that whether described terminal is in roaming state;
Described downlink transfer unit is used for: when being judged as YES of described roaming judging unit, described downstream message is sent to the described MTC-IWF of agency.
12. former MTC-IWF as claimed in claim 11, is characterized in that, this former MTC-IWF also comprises:
Information searching unit, for before described downlink transfer unit sends to the described MTC-IWF of agency by described downstream message, the information of the service node obtaining according to described roaming judging unit, searches the information of acting on behalf of MTC-IWF of serving this service node in VPLMN;
Described downlink transfer unit is used for: the information finding according to described information searching unit, sends to the described MTC-IWF of agency by described downstream message.
13. former MTC-IWF as claimed in claim 11, is characterized in that, described downlink transfer unit also for:
Before described downstream message is sent to the described MTC-IWF of agency, the information using the core net control appliance of the service node as described terminal, is carried in described downstream message.
Act on behalf of MTC-IWF for 14. 1 kinds, it is characterized in that, this is acted on behalf of MTC-IWF and comprises:
Downlink transfer unit, for sending to core net control appliance by the downstream message from former MTC-IWF receiving; The MTC-IWF arranging in the HPLMN that described former MTC-IWF is terminal, this acts on behalf of MTC-IWF is the MTC-IWF arranging in the VPLMN at the current place of terminal;
Uplink unit, for sending to described former MTC-IWF by the upstream message from core net control appliance receiving.
15. MTC-IWF that act on behalf of as claimed in claim 14, is characterized in that, this is acted on behalf of MTC-IWF and also comprises:
Message parse unit, before the downstream message from former MTC-IWF receiving being sent to core net control appliance in described downlink transfer unit, obtains the information of core net control appliance by resolving described downstream message;
Described downlink transfer unit is used for: the information obtaining according to described message parse unit resolves, sends to core net control appliance by described downstream message.
16. MTC-IWF that act on behalf of as claimed in claim 14, is characterized in that, this is acted on behalf of MTC-IWF and also comprises:
Information searching unit, for before described uplink unit sends to described former MTC-IWF by the upstream message from core net control appliance receiving, according to the relevant information of carrying in described upstream message, search the information of the former MTC-IWF arranging in the HPLMN of this terminal;
Described uplink unit, for the information finding according to described information searching unit, sends to described former MTC-IWF by described upstream message.
17. MTC-IWF that act on behalf of as claimed in claim 14, is characterized in that, described uplink unit is used for:
By this, act on behalf of the interface of having set up between MTC-IWF and described former MTC-IWF, the upstream message from core net control appliance receiving is sent to described former MTC-IWF; Described interface is acted on behalf of when MTC-IWF sends downstream message and is set up to this at described former MTC-IWF.
18. 1 kinds of core net control appliances, is characterized in that, this core net control appliance comprises:
Downlink transfer unit, for sending the downstream message from acting on behalf of MTC-IWF receiving; The described MTC-IWF of agency is the MTC-IWF arranging in the VPLMN at the current place of terminal;
Uplink unit, sends to the described MTC-IWF of agency for the upstream message that the terminal receiving is sent.
19. core net control appliances as claimed in claim 18, is characterized in that, this core net control appliance also comprises:
Roaming judging unit, before sending to the described MTC-IWF of agency, according to the international mobile subscriber identification code IMSI of this terminal of carrying in described upstream message, judges that whether described terminal is in roaming state for the upstream message the terminal receiving is sent;
Described uplink unit is used for: when being judged as YES of described roaming judging unit, described upstream message is sent to the described MTC-IWF of agency.
20. core net control appliances as claimed in claim 19, is characterized in that, this core net control appliance also comprises:
The information of acting on behalf of MTC-IWF of serving this core net control appliance before described upstream message being sent to the described MTC-IWF of agency in described uplink unit, is searched in information searching unit from local configuration information;
Described uplink unit is used for: the information finding according to described information searching unit, sends to the described MTC-IWF of agency by described upstream message.
Data transmission method under 21. 1 kinds of roaming scences, is characterized in that, the method comprises:
Be arranged on former MTC-IWF in HPLMN by the downstream message from SCS receiving, send to and act on behalf of MTC-IWF; The described MTC-IWF of agency is the MTC-IWF arranging in the VPLMN at the current place of terminal; And,
Described former MTC-IWF sends to described SCS by the upstream message from the described MTC-IWF of agency receiving.
22. methods as claimed in claim 21, it is characterized in that, former MTC-IWF in being arranged on HPLMN is by the downstream message from SCS receiving, before sending to and acting on behalf of MTC-IWF, further comprise: described former MTC-IWF obtains the information of the service node of described terminal from HSS, according to the information of the service node obtaining, judge that whether described terminal is in roaming state;
Described former MTC-IWF, by the downstream message from SCS receiving, sends to and acts on behalf of MTC-IWF, specifically comprises: when judging described terminal in roaming state, described downstream message is sent to the described MTC-IWF of agency.
23. methods as claimed in claim 22, is characterized in that, described described downstream message are sent to the described MTC-IWF of agency, specifically comprise:
According to the information of the service node obtaining, search the information of acting on behalf of MTC-IWF of serving this service node in VPLMN; According to the information finding, described downstream message is sent to the described MTC-IWF of agency.
24. methods as claimed in claim 22, is characterized in that, further comprise:
Before described downstream message is sent to the described MTC-IWF of agency, the information using the core net control appliance of the service node as described terminal, is carried in described downstream message.
Data transmission method under 25. 1 kinds of roaming scences, is characterized in that, the method comprises:
The MTC-IWF that acts on behalf of being arranged in VPLMN sends to core net control appliance by the downstream message from former MTC-IWF receiving; The MTC-IWF arranging in the HPLMN that described former MTC-IWF is terminal;
The described MTC-IWF of agency sends to described former MTC-IWF by the upstream message from core net control appliance receiving.
26. methods as claimed in claim 25, it is characterized in that, before the described MTC-IWF of agency sends to core net control appliance by the downstream message from former MTC-IWF receiving, further comprise: the information that obtains core net control appliance by resolving described downstream message;
The described MTC-IWF of agency sends to core net control appliance by the downstream message from former MTC-IWF receiving, and specifically comprises: the information that the described MTC-IWF of agency obtains according to parsing, sends to core net control appliance by described downstream message.
27. methods as claimed in claim 25, is characterized in that, the described MTC-IWF of agency sends to described former MTC-IWF by the upstream message from core net control appliance receiving, and specifically comprises:
The described MTC-IWF of agency, according to the relevant information of carrying in described upstream message, searches the information of the former MTC-IWF arranging in the HPLMN of this terminal; According to the information finding, described upstream message is sent to described former MTC-IWF.
28. methods as claimed in claim 25, is characterized in that, the described MTC-IWF of agency sends to described former MTC-IWF by the upstream message from core net control appliance receiving, and specifically comprises:
The described MTC-IWF of agency acts on behalf of by this interface of having set up between MTC-IWF and described former MTC-IWF, and the upstream message from core net control appliance receiving is sent to described former MTC-IWF; Described interface is acted on behalf of when MTC-IWF sends downstream message and is set up to this at described former MTC-IWF.
Data transmission method under 29. 1 kinds of roaming scences, is characterized in that, the method comprises:
Core net control appliance sends the downstream message from acting on behalf of MTC-IWF receiving; The described MTC-IWF of agency is the MTC-IWF arranging in the VPLMN at the current place of terminal;
The upstream message that described core net control appliance sends the terminal receiving sends to the described MTC-IWF of agency.
30. methods as claimed in claim 29, it is characterized in that, before the upstream message of the terminal receiving being sent at described core net control appliance sends to the described MTC-IWF of agency, further comprise: according to the international mobile subscriber identification code IMSI of this terminal of carrying in described upstream message, judge that whether described terminal is in roaming state;
The upstream message that described core net control appliance sends the terminal receiving sends to the described MTC-IWF of agency, specifically comprises: when judging described terminal in roaming state, described upstream message is sent to the described MTC-IWF of agency.
31. methods as claimed in claim 29, is characterized in that, the upstream message that described core net control appliance sends the terminal receiving sends to the described MTC-IWF of agency, specifically comprises:
From local configuration information, search the information of acting on behalf of MTC-IWF of serving this core net control appliance; According to the information finding, described upstream message is sent to the described MTC-IWF of agency.
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