WO2012151981A1 - 发送mtc设备触发信息的方法、系统和目标用户设备 - Google Patents

发送mtc设备触发信息的方法、系统和目标用户设备 Download PDF

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Publication number
WO2012151981A1
WO2012151981A1 PCT/CN2011/083781 CN2011083781W WO2012151981A1 WO 2012151981 A1 WO2012151981 A1 WO 2012151981A1 CN 2011083781 W CN2011083781 W CN 2011083781W WO 2012151981 A1 WO2012151981 A1 WO 2012151981A1
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WO
WIPO (PCT)
Prior art keywords
mtc device
mtc
trigger information
target user
core network
Prior art date
Application number
PCT/CN2011/083781
Other languages
English (en)
French (fr)
Inventor
许辉
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP11865377.3A priority Critical patent/EP2750422A4/en
Priority to US13/989,294 priority patent/US9215550B2/en
Publication of WO2012151981A1 publication Critical patent/WO2012151981A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/34—Network arrangements or protocols for supporting network services or applications involving the movement of software or configuration parameters 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/20—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/618—Details of network addresses
    • H04L2101/654—International mobile subscriber identity [IMSI] numbers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/10—Mapping addresses of different types
    • H04L61/106—Mapping addresses of different types across networks, e.g. mapping telephone numbers to data network addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4588—Network directories; Name-to-address mapping containing mobile subscriber information, e.g. home subscriber server [HSS]

Definitions

  • the present invention relates to wireless communication technologies, and in particular, to a method, system and target user equipment for transmitting machine type communication (MTC) device trigger information.
  • MTC machine type communication
  • M2M Machine to Machine
  • M2M business appeared on the market and developed rapidly in the following years, becoming the focus of many communication equipment vendors and telecom operators. At present, the number of machines in the world is much larger than that of people, so it is possible to foresee the good market prospects of M2M technology.
  • the existing mobile communication networks are mainly designed for communication between people, and the communication between machines and machines, people and machines is insufficiently optimized.
  • how operators can provide M2M communication services at low cost is also the key to the successful deployment of M2M communication.
  • the solution should maximize the reuse of existing networks, reduce the impact of a large number of M2M communications on the network, and the complexity of operation and maintenance.
  • MTC Machine Type Communication
  • H2H Human to Human
  • MTC Machine to Machine and Machine
  • QoS quality of service
  • business model and other aspects are very different from the current H2H communication mode.
  • the EPS includes a radio access network (such as a UMTS (Universal Terrestrial Radio Access Network), an evolved UTRAN (E-UTRAN, Evolved UTRAN).
  • GSM/EDGE Radio Access Network GERAN, GSM/EDGE Radio Access Network
  • MME Mobile Management Entity
  • EPC Evolved Packet Core
  • PDN packet data network gateway
  • SGSN serving GPRS support node
  • eNB evolved node B
  • MTC device trigger (Device Trigger) is one of the basic requirements for the MTC system.
  • the problem of this requirement is: In order to control the communication of the MTC device, the polling can be initiated by the MTC server (Server). For the communication initiated by the MTC device, the MTC Server sometimes needs to poll the data from the MTC device. If the MTC server fails to query or the IP address of the MTC device is not available, the MTC server can use the MTC device to trigger communication with the MTC device. If the network cannot trigger the MTC device, the network reports to the MTC server that the MTC device trigger failed.
  • the MTC device trigger is implemented in 3GPP through the control plane signaling.
  • MTC device triggers include mobile originating (MO, Mobile Originated) and mobile called (MT, Mobile Terminating) A service that includes an MTC device to send or receive information.
  • MO Mobile Originated
  • MT Mobile Terminating
  • the proposed solution includes: transmitting the MTC device trigger information through the short message SMS, or sending the MTC device trigger information through the control plane signaling.
  • the MTC server sends control plane signaling including the trigger information of the MTC device to the network node, and the network node parses the MTC device trigger information in the control plane signaling, and then sends the MTC.
  • the device triggers information to the user equipment (UE, User Equipment).
  • UE User Equipment
  • the MTC architecture in 3GPP is shown in Figure 1.
  • the MTC application device that connects the MTC user (User) communicates with the MTC server through the API interface, or directly with the gateway GPRS in the 3GPP network through the Gi/SGi interface.
  • Support Node GGSN, Gateway GPRS Support Node
  • EPDG Packet Data Gateway
  • MTC server communicates with GGSN/PGW/EPDG through MTCi interface; GGSN/PGW/EPDG through Radio Access Network (RAN) and user Device (UE) communication;
  • the MTC server sends control plane signaling including MTC device trigger information to the MTC Interworking Function (MTC-IWF, MTC InterWorking Function) through the MTCsp interface or to the short message service-service center through the MTCsms interface ( SMS-SC (Short Message Service-Service Centre)/IP Short Message Service (IP-SM-GW, IP-Short-Message-Gateway)
  • SMS-SC Short Message Service-Service Centre
  • IP-SM-GW IP-Short-Message-Gateway
  • 2 is a trigger message sent by the MTC server to the SMS-SC/IP-SM-GW including the MTC device Schematic diagram of the control plane signaling of the information, wherein the MTC server directly sends the control plane signaling including the trigger information of the MTC device to the SMS-SC/IP-SM-GW through the MTCsms interface, and the SMS-SC/IP-SM-GW passes through The SMS-GMSC, SMS Router, MSC/VLR or SGSN transmits the MTC device trigger information and finally sends it to the UE.
  • the content of the trigger information of the MTC device is not determined, and the scheme for processing the trigger information of the MTC device in the 3GPP network node is not available, and the requirement for the transmission of the trigger information of the MTC device in the 3GPP network cannot be satisfied.
  • the main purpose of the present invention is to provide a method, a system, and a target user equipment for transmitting trigger information of an MTC device, to implement triggering of MTC device trigger information in a 3GPP network.
  • the method for transmitting trigger information of an MTC device includes: setting an MTC device trigger information content by the MTC server, and sending the MTC device trigger information to the network node device;
  • the network node device finds the core network device corresponding to the target user equipment, and will receive the
  • the MTC device trigger information is sent to the core network device
  • the core network device forwards the MTC device trigger information to the target user equipment by using the RAN; the target user equipment receives the MTC device trigger information, and sends an MTC device trigger information acknowledge message to the core network device.
  • the MTC device trigger information content includes: an MTC device identifier and an MTC device trigger valid time.
  • the MTC device identifier is an external identifier of the 3GPP network
  • the corresponding internal identifier of the 3GPP network is an international mobile subscriber identity (IMSI, Internal Mobile Subscriber)
  • the mapping between the external identifier and the internal identifier is through MTC IWF or HSS or
  • the MTC device trigger information content further includes at least one of the following: an application identifier, a priority of the MTC device trigger information, an MTC server IP address, a port, and an MTC device trigger count.
  • the sending the MTC device trigger information to the network node device is: deriving the 3GPP network internal identifier IMSI according to the MTC device identifier in the MTC device trigger information content, and finding the target user device according to the 3GPP network internal identifier IMSI.
  • the corresponding network node device sends the MTC device trigger information to the network node device.
  • the network node device searches for the core network device corresponding to the target user equipment, and sends the received MTC device trigger information to the core network device, as follows:
  • the network node device receives the trigger information of the MTC device, and the MTC device identifier in the triggering information content of the MTC device is modified into the internal identifier IMSI of the 3GPP network, and the core network device corresponding to the target user equipment is found by using the HSS or the HLR, and the MTC device is triggered. Information is sent to the core network device.
  • the method further includes: after the network node device fails to send the MTC device trigger information, retransmitting the MTC device trigger information.
  • the method further includes: determining, by the network node device, whether to delete the MTC device trigger information according to the MTC device trigger valid time in the MTC device trigger information content before retransmitting the MTC device trigger information.
  • the core network device forwards the MTC device trigger information to the target user equipment by using the radio access network as: the ongoing signaling connection or page message in the radio access network by the core network device. Or broadcasting a message system information block (SIB), forwarding the MTC device trigger information to the target user equipment.
  • SIB message system information block
  • the method further includes: when the priority of the triggering information of the MTC device in the triggering information content of the MTC device is urgent, the core network device immediately forwards the trigger information of the MTC device.
  • the method further includes: determining, by the core network device, whether to delete the MTC device trigger information according to the MTC device trigger validity time in the MTC device trigger information content before retransmitting the MTC device trigger information.
  • the method further includes: after the target user equipment sends an MTC device trigger information acknowledgement message to the core network device, the MTC device triggers the count information in the MTC device trigger information content to determine whether the trigger information of the MTC device is repeated, Request to establish a PDN connection or activate a Packet Data Protocol (PDP) context when it is repeated.
  • PDP Packet Data Protocol
  • the method further includes: the target user equipment establishes application layer communication with the MTC server according to the address and port information of the MTC server in the MTC device trigger information content.
  • the network node device is an MTC IWF or an HSS or an HLR or an SMS-SC or an IP-SM-GW;
  • the core network device is an MME or a Serving General Packet Radio Service Technology (GPRS) Support Node (SGSN) or a Short Message Service-Mobile Service Switch Center Gateway (SMS-GMSC) or a Short Message Service Router (SMS Router) or a Mobile Service Switching Center ( MSC).
  • GPRS General Packet Radio Service Technology
  • SGSN General Packet Radio Service Technology
  • SMS-GMSC Short Message Service-Mobile Service Switch Center Gateway
  • SMS Router Short Message Service Router
  • MSC Mobile Service Switching Center
  • the system provides a system for transmitting trigger information of an MTC device, where the system includes: an MTC server, a network node device, a core network device, and a target user device;
  • An MTC server configured to set an MTC device trigger information content, and send the MTC device trigger information to the network node device;
  • a network node device configured to find a core network device corresponding to the target user equipment, and send the received MTC device trigger information to the core network device;
  • a core network device configured to forward, by using a radio access network, the MTC device trigger information to a target user equipment
  • the target user equipment is configured to receive the trigger information of the MTC device, and send an MTC device trigger information acknowledgement message to the core network device.
  • the network node device is specifically configured to receive the trigger information of the MTC device, modify the MTC device identifier in the trigger information content of the MTC device to be the internal identifier IMSI of the 3GPP network, and find the core corresponding to the target user device by using the HSS or the HLR.
  • the network device sends the MTC device trigger information to the core network device.
  • the present invention provides a target user equipment, where the target user equipment includes a receiving unit and a sending unit, where
  • a receiving unit configured to receive MTC device trigger information sent by the core network device, where the content of the MTC device trigger information is set by the MTC server;
  • the present invention provides a method, a system, and a target user equipment for transmitting trigger information of an MTC device.
  • the MTC server sets an MTC device trigger information content, and sends the MTC device trigger information to a network node device.
  • the network node device finds the target user.
  • the core network device corresponding to the device sends the received trigger information of the MTC device to the core network device; the core network device forwards the trigger information of the MTC device to the target user device; and the target user device receives the trigger information of the MTC device,
  • the core network device sends an MTC device trigger information acknowledgement message.
  • the triggering information of the MTC device triggering information in the 3GPP network can be implemented, and the content of the trigger information of the MTC device and the processing scheme of the trigger information of the MTC device by the network node device are determined.
  • FIG. 1 is a schematic diagram of an MTC architecture in 3GPP in the prior art
  • FIG. 2 is a schematic diagram of the control plane signaling that the MTC server sends the trigger information including the MTC device by using the SMS-SC/IP-SM-GW in the prior art;
  • FIG. 3 is a schematic flowchart of a method for transmitting trigger information of an MTC device according to the present invention
  • FIG. 4 is a schematic structural diagram of a system for transmitting trigger information of an MTC device according to the present invention
  • FIG. 5 is a schematic diagram of a method for transmitting an MTC device according to an embodiment of the present invention
  • FIG. 6 is a schematic flowchart of a method for transmitting trigger information of an MTC device according to Embodiment 2 of the present invention.
  • the basic idea of the present invention is: the MTC server sets the MTC device trigger information content, and sends the MTC device trigger information to the network node device; the network node device finds the core network device corresponding to the target user device, and the received MTC device The trigger information is sent to the core network device; the core network device forwards the MTC device trigger information to the target user equipment by using the RAN; the target user equipment receives the MTC device trigger information, and sends an MTC device trigger information acknowledge message to the core network device.
  • the present invention implements a method for transmitting trigger information of an MTC device. As shown in FIG. 3, the method includes the following steps:
  • Step 101 The MTC server sets an MTC device trigger information content, and sends the MTC device trigger information to the network node device.
  • the MTC server sets the MTC device trigger information content, and derives the 3GPP network internal identifier IMSI according to the MTC device identifier in the MTC device trigger information content, and finds the network node device corresponding to the target user device according to the 3GPP network internal identifier IMSI. Transmitting MTC device trigger information to the network node device;
  • the MTC server is located outside the 3GPP network or in the 3GPP network;
  • the MTC device triggering information content includes: an MTC device identifier (Device ID) and an MTC device trigger validity time (validity timer); further, the MTC device triggers the information content
  • the method further includes at least one of the following: an application identifier (APP ID), a priority of the MTC device trigger information, an MTC server IP address, a port, an MTC device trigger count (counter), and the like;
  • the MTC device identifier is used to identify the target user equipment, the MTC device identifier is a 3GPP network external identifier, and the corresponding 3GPP network internal identifier is an IMSI, and the external identifier and
  • the triggering of the MTC device is performed on the target user equipment, and the MTC device identifier may also be a group ID (group ID); the MTC device trigger valid time is used to indicate the time when the MTC device trigger information is deleted; the application identifier is used to identify the target.
  • the priority of the triggering information of the MTC device is used to indicate whether the triggering information of the MTC device is urgent or general.
  • the IP address and port of the MTC server are used to identify the address and port of the MTC server that initiates the triggering information of the MTC device.
  • the MTC device trigger count is used to indicate whether it is a duplicate trigger request message.
  • the MTC server may further derive the 3GPP network according to the application identifier in the MTC device trigger information content.
  • the network node device is located in the 3GPP network and may be any one of the following: MTC-IWF, HSS/HLR, SMS-SC, IP-SM-GW.
  • Step 102 The network node device finds the core network device corresponding to the target user equipment, and sends the received MTC device trigger information to the core network device.
  • the network node device receives the trigger information of the MTC device, and the MTC device identifier in the triggering information content of the MTC device is modified into the internal identifier IMSI of the 3GPP network, and the core network device corresponding to the target user equipment is found by using the HSS or the HLR, and the The MTC device triggering information is sent to the core network device; when the network node device is the HSS/HLR, the HSS/HLR searches for the core network device corresponding to the target user device by using the local record;
  • the core network device is generally an MME or SGSN (MME/SGSN) or an SMS-GMSC or SMS Router or MSC;
  • the SMS-GMSC or the SMS Router or the MSC is the core network device corresponding to the SMS-SC or the IP-SM-GW when the MTC device trigger information is sent by using the SMS mode;
  • the step further includes: after the network node device fails to send the trigger information of the MTC device, Resending the MTC device triggering information; further, the network node device determines, according to the triggering validity time of the MTC device in the MTC device triggering information content, whether to delete the MTC device triggering information, that is, before retransmitting the MTC device triggering information, that is, When the triggering validity time of the MTC device is reached, the network node device deletes the trigger information of the MTC device, does not perform a retransmission operation, and notifies the MTC server.
  • Step 103 The core network device forwards, by using the RAN, the MTC device trigger information to the target user equipment.
  • the core network device forwards the MTC device trigger information to the target user equipment by using an ongoing signaling connection, or a paging message, or a broadcast message SIB in the RAN;
  • the signaling connection may be: a non-access stratum (NAS, Non Access Stratum) message process, such as a DOWNLINK GENERIC NAS TRANSPORT message and an UPLINK GENERIC NAS TRANSPORT message;
  • NAS Non Access Stratum
  • the RAN refers to an eNB;
  • the step further includes: the core network device determines, according to the priority of the triggering information of the MTC device in the information content of the MTC device, whether to immediately forward the trigger information of the MTC device, for example, when the priority of the trigger information of the MTC device is emergency, the core network device Forwarding the MTC device trigger information immediately;
  • the step of the core network device re-transmits the trigger information of the MTC device after the triggering information of the MTC device fails due to network congestion or overload; further, before the core network device retransmits the trigger information of the MTC device And determining, according to the triggering validity time of the MTC device in the triggering information content of the MTC device, whether to delete the triggering information of the MTC device, that is, when the triggering valid time of the MTC device is reached, the core network device deletes the trigger information of the MTC device, and does not perform retransmission. Operate, and notify the MTC server.
  • Step 104 The target user equipment receives the trigger information of the MTC device, and sends an MTC device trigger information acknowledgement message to the core network device.
  • the step further includes: the target user equipment sends an MTC device touch to the core network device.
  • the MTC device triggers the counting information in the MTC device to determine whether the MTC device trigger information is repeated. If yes, the process ends, otherwise the target user device may request to establish a PDN connection or activate a Packet Data Protocol (PDP). Context (PDN connection/PDP context), if the PDN connection already exists, there is no need to re-establish the PDN connection;
  • PDP Packet Data Protocol
  • the target user equipment establishes application layer communication with the MTC server according to the address and port information of the MTC server in the MTC device trigger information content.
  • the present invention further provides a system for transmitting trigger information of an MTC device.
  • the system includes: an MTC server 31, a network node device 32, a core network device 33, and a target user device 34.
  • the MTC server 31 is configured to set an MTC device trigger information content, and send the MTC device trigger information to the network node device 32;
  • the MTC server 31 is specifically configured to set an MTC device trigger information content, and derive a 3GPP network internal identifier IMSI according to the MTC device identifier in the MTC device trigger information content, and find a network node corresponding to the target user equipment according to the 3GPP network internal identifier IMSI.
  • the device 32, the MTC device trigger information is sent to the network node device 32;
  • the triggering information content of the MTC device includes: an MTC device identifier and an MTC device triggering effective time;
  • the MTC device trigger information content further includes at least one of the following: an application identifier, a priority of the MTC device trigger information, an MTC server IP address, a port, an MTC device trigger count, and the like;
  • the network node device 32 is configured to find the core network device 33 corresponding to the target user equipment 34, and send the received MTC device trigger information to the core network device 33;
  • the network node device 32 is specifically configured to receive the trigger information of the MTC device, and modify the MTC device identifier in the trigger information content of the MTC device to be the internal identifier of the 3GPP network (IMSI).
  • IMSI 3GPP network
  • the HSS/HLR finds the core network device 33 corresponding to the target user equipment 34, and sends the MTC device trigger information to the core network device 33;
  • the network node device 32 is further configured to resend the trigger information of the MTC device after the triggering information of the MTC device fails to be sent;
  • the network node device 32 is further configured to determine, according to an MTC device triggering valid time in the MTC device trigger information content, whether to delete the MTC device trigger information, before resending the MTC device trigger information;
  • the core network device 33 is configured to forward, by using the RAN, the MTC device trigger information to the target user equipment 34.
  • the core network device 34 is specifically configured to forward the MTC device trigger message to the target user equipment 34 by using an ongoing signaling connection, or a paging message, or a broadcast message SIB in the RAN, the core network device. And determining, according to the priority of the triggering information of the MTC device in the information content of the MTC device, whether to immediately forward the trigger information of the MTC device;
  • the core network device 33 is further configured to resend the MTC device trigger information after failing to send the MTC device trigger information due to network congestion or overload;
  • the core network device 33 is further configured to: determine, according to the triggering validity time of the MTC device in the trigger information content of the MTC device, whether to delete the trigger information of the MTC device, before resending the MTC device trigger information;
  • the target user equipment 34 is configured to receive the MTC device trigger information, and send an MTC device trigger information confirmation message to the core network device 33.
  • the target user equipment 34 is further configured to: after the MTC device trigger information acknowledgement message is sent to the core network device 33, determine, by the MTC device triggering the MTC device trigger count information in the information content, whether the trigger information of the MTC device is repeated, and if yes, the process End, otherwise the target user
  • the device 34 requests to establish a PDN connection or activate a PDP context, and if the PDN connection already exists, the PDN connection is not re-established.
  • the target user equipment 34 includes a receiving unit 341 and a sending unit 342.
  • the receiving unit 341 is configured to receive MTC device trigger information sent by the core network device 33, where the content of the MTC device trigger information is set by the MTC server 31.
  • the sending unit 342 is configured to send the MTC device trigger information confirmation to the core network device 33.
  • the present invention further provides a target user equipment. As shown in FIG. 4, the target user equipment 34 includes a receiving unit 341 and a sending unit. 342 , where
  • the receiving unit 341 is configured to receive MTC device trigger information sent by the core network device 33, where the content of the MTC device trigger information is set by the MTC server 31.
  • the sending unit 342 is configured to send the MTC device trigger information to the core network device 33.
  • This example implements a method for transmitting trigger information of an MTC device by using a scenario in which the trigger information of the MTC device is sent through the MTC IWF. As shown in FIG. 5, the method includes the following steps:
  • Step 201 The MTC server sets an MTC device trigger information content.
  • the MTC device trigger information content includes: an MTC device identifier, and an MTC device trigger valid time;
  • the MTC device trigger information content further includes at least one of the following: an application identifier, a priority of the MTC device trigger information, an MTC server IP address, a port, an MTC device trigger count, and the like;
  • Step 202 The MTC server sends the MTC device trigger information to the MTC IWF. Specifically, the MTC server sends the MTC device trigger information to the MTC IWF through the MTCsp interface, and the MTC device trigger information passes the control signal on the MTCsp interface. Order bearing.
  • Step 203 The MTC IWF searches for an MME/SGSN corresponding to the target user equipment.
  • the MTC IWF changes the MTC device identifier in the MTC device trigger information to the 3GPP network internal identifier IMSI, and obtains the MME/SGSN corresponding to the target user equipment by using the HSS/HLR query;
  • a communication interface is established between the MTC IWF and the HSS/HLR.
  • Step 204 The MTC IWF sends the MTC device trigger information to the MME/SGSN.
  • the MTC IWF immediately sends the MTC device trigger information to the MME/SGSN. Otherwise, the MTC IWF waits for the UE to register to the MME/SGSN and then sends the MTC device trigger information.
  • the MTC IWF When the MTC IWF sends the MTC device trigger information to the MME/SGSN, the MTC IWF retransmits the MTC device trigger information. It should be noted that before the MTC IWF retransmits the MTC device trigger information, the MTC IWF needs to determine whether the MTC device trigger valid time is Timeout, if yes, the MTC IWF stops resending, deletes the MTC device trigger information record, and notifies the MTC server.
  • Step 205 The MME/SGSN determines, according to the triggering information content of the MTC device, whether to immediately forward the trigger information of the MTC device, if yes, go to step 206, otherwise go to step 210.
  • the MME/SGSN may trigger information according to the MTC device.
  • the MTC device in the content triggers the priority of the information, and determines whether the trigger information needs to be forwarded immediately. When the priority is urgent, it needs to be sent immediately. If the priority is normal, step 210 is performed.
  • Step 206 The MME/SGSN sends the MTC device trigger information to the target user equipment by using the RAN.
  • the target user equipment may be any one of the following: a UE, a mobile device, a mobile station, and the like; and the target user equipment is generally configured with a function of supporting the MTC feature;
  • the MTC device trigger information is sent through an ongoing signaling connection, or a paging message, or a broadcast message SIB bearer;
  • the signaling connection may be a dedicated NAS message procedure;
  • the MME/SGSN when the MME/SGSN fails to send the MTC device trigger information to the UE through the RAN, for example, when the MTC device trigger information fails due to network congestion/overload, the MME/SGSN retransmits the MTC device trigger information; here, in the MME Before the SGSN retransmits the trigger information of the MTC device, the MME/SGSN determines whether the MTC device trigger valid time expires. If yes, the MME/SGSN stops resending, deletes the MTC device trigger information record, and notifies the MTC IWF, and further, the MTC IWF notification MTC server.
  • Step 207 The target user equipment receives the trigger information of the MTC device, and sends an MTC device trigger information acknowledgement message to the MME/SGSN.
  • the step further includes: after the target user equipment sends the MTC device trigger information acknowledgement message to the MME/SGSN, the MTC device triggers the count information in the MTC device trigger information content to determine whether the MTC device trigger information is repeated, and if yes, the process ends. Otherwise, the target user equipment requests to establish a PDN connection or activate a PDP context;
  • the target user equipment establishes application layer communication with the MTC server according to the address and port information of the MTC server in the MTC device trigger information content.
  • Step 208 The MME/SGSN deletes the trigger information record of the MTC device, and notifies the MTC IWF MTC device that the trigger information is received by the target user equipment.
  • the MME and the SGSN may send the acknowledge message that the MTC IWF MTC device trigger information target user equipment has received to the MTC IWF at the same time or separately.
  • Step 210 the MME/SGSN sends the MTC device trigger information to the target user equipment in the next NAS signaling process, and step 207 is performed;
  • the NAS signaling process may be any of the following message processes: an Attach process, a TAU/RAU process, and the like.
  • the method for transmitting the trigger information of the MTC device is implemented in the scenario that the trigger information of the MTC device is sent by the HSS/HLR. As shown in FIG. 6, the method includes the following steps: Step 301: The MTC server sets the trigger information content of the MTC device. ;
  • This step is the same as step 201 and will not be described here.
  • Step 302 the MTC server sends the MTC device trigger information to the HSS/HLR.
  • Step 303 The HLR/HSS searches for the MME/SGSN corresponding to the target user equipment.
  • the HSS/HLR changes the MTC device identifier in the trigger information of the MTC device to the internal identifier IMSI of the 3GPP network, and obtains the MME/SGSN corresponding to the target user equipment by using a local record query.
  • Step 304 The HSS/HLR sends the MTC device trigger information to the MME/SGSN.
  • the HSS/HLR immediately sends the MTC device trigger information to the MME/ SGSN, otherwise the HSS/HLR waits for the UE to register with the MME/SGSN and then sends the MTC device trigger information;
  • the HSS/HLR When the HSS/HLR fails to send the MTC device trigger information to the MME/SGSN, the HSS/HLR retransmits the MTC device trigger information; it should be noted that the HSS/HLR needs to determine the MTC device before the HSS/HLR retransmits the MTC device trigger information. Whether the trigger valid time expires, if If yes, the HSS/HLR stops resending, deletes the MTC device trigger information record, and notifies the MTC server.
  • Step 305 The MME/SGSN determines whether to immediately forward the MTC device trigger information according to the MTC device trigger information content. If yes, go to step 306. Otherwise, go to step 310. Specifically, the MME/SGSN may trigger information according to the MTC device. The MTC device in the content triggers the priority of the information, and determines whether the trigger information needs to be forwarded immediately. When the priority is urgent, it needs to be sent immediately. If the priority is normal, step 310 is performed.
  • Step 306 The MME/SGSN sends the MTC device trigger information to the target user equipment by using the RAN.
  • This step is the same as step 206 and will not be described here.
  • Step 307 The target user equipment receives the trigger information of the MTC device, and sends an MTC device trigger information acknowledgement message to the MME/SGSN. This step is the same as step 207, and details are not described herein.
  • the HSS/HLR deletes the trigger information record of the MTC device, and the process ends.
  • the HSS/HLR receives the acknowledgment message received by the target user equipment of the MMC device triggering information of the MME and/or the SGSN, and then deletes the local MTC device trigger information. recording.
  • Step 310 The MME/SGSN sends the MTC device triggering information to the target user equipment in the next NAS signaling process, and performs step 307. This step is the same as step 210, and is not described here.
  • the triggering information of the MTC device in the 3GPP network can be implemented, and the content of the trigger information of the MTC device and the processing scheme of the trigger information of the MTC device by the network node device are determined.

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Abstract

本发明公开了一种发送MTC设备触发信息的方法，MTC服务器设置MTC设备触发信息内容，并将MTC设备触发信息发送到网络节点设备；网络节点设备查找到目标用户设备对应的核心网设备，将接收到的MTC设备触发信息发送到所述核心网设备；核心网设备通过无线接入网向目标用户设备转发所述MTC设备触发信息；目标用户设备接收所述MTC设备触发信息，向核心网设备发送MTC设备触发信息确认消息；本发明同时还公开了一种发送MTC设备触发信息的系统和目标用户设备，通过本发明的方案，能够实现3GPP网络中MTC设备触发信息的发送，确定了MTC设备触发信息的内容和网络节点设备对MTC设备触发信息的处理方案。

Description

发送 MTC设备触发信息的方法、 系统和目标用户设备 技术领域
本发明涉及无线通信技术， 尤其涉及一种发送机器类型通信（MTC ) 设备触发信息的方法、 系统和目标用户设备。 背景技术
M2M ( Machine to Machine )指机器之间建立连接的所有技术和手段。 M2M 理念在上个世纪九十年代就出现了， 但是只停留在理论阶段。 2000 年以后， 随着移动通信技术的发展， 以移动通信技术实现机器设备的联网 成为可能。 2002年左右 M2M业务就在市场上出现， 并在随后的几年迅速 发展， 成为了众多通信设备商和电信运营商的关注焦点。 目前全球的机器 数量比人的数量要多很多， 因此可以预见到 M2M技术的良好的市场前景。
对 M2M通信应用场景研究表明在移动网络上提供 M2M通信具有潜在 的市场前景。但 M2M业务对系统提出了很多新的要求， 为了增强移动网络 在这方面的竟争力， 有必要对现有的移动网络进行优化， 来更有效的支持 M2M通信。
现有的移动通信网络主要针对人与人的通信进行设计， 而对机器与机 器，人与机器的通信则优化不足。此外，运营商如何能够以低成本提供 M2M 通信服务， 也是 M2M通信部署成功的关键。
基于以上情况，有必要研究移动网络支持 M2M通信的解决方案，解决 方案要最大限度重用现有网络，降低大量 M2M通信对网络造成的影响以及 运营维护的复杂度。
目前电信市场竟争日趋激烈， 资费不断下降， 运营商利润空间不断减 小， 以人为基础的通信市场正在趋于饱和， M2M对运营商来说是全新的发 展机遇。
为了有效地利用移动网络资源， 第三代合作伙伴计划 （3GPP , 3rd Generation Partnership Project )提出了机器类型通信 ( MTC, Machine Type Communication ), 即机器^机器（ Machine to Machine )、机器 ^人 ( Machine to Man )进行通讯的业务，其业务范围远远超出了以往人对人（ H2H, Human to Human )之间的通讯， MTC在接入控制、计费、安全性、服务质量（QoS, Quality of Service )、业务模式等方面与现在的 H2H通讯模式有很大的区别。
3GPP演进分组系统（ EPS, Evolved Packet System )架构中， EPS包括 了无线接入网 （如 UMTS陆地无线接入网 （UTRAN, Universal Terrestrial Radio Access Network )、 演进的 UTRAN ( E-UTRAN, Evolved UTRAN )、 GSM/EDGE无线接入网络 ( GERAN, GSM/EDGE Radio Access Network ) ) 和核心网， 如在演进分组核心网 （EPC, Evolved Packet Core ) 中有移动管 理实体（MME )、 服务网关（ Serving Gateway )、 分组数据网 （PDN ) 网关 ( PGW, PDN Gateway )等网元， 在 GPRS核心网中包括服务 GPRS支持 节点（ SGSN )等网元；在 E-UTRAN中包括演进的节点 B( eNB, evolved Node B )。
MTC设备触发（Device Trigger )是对 MTC系统的基本要求之一， 该 要求所关注的问题是： 为了控制 MTC设备的通信， 可以采用由 MTC服务 器（ Server )发起轮询 ( poll )的方式进行通信，对于 MTC设备发起的通信， 有时也需要 MTC Server从 MTC设备 poll数据。 如果 MTC服务器查询失 败或者 MTC设备的 IP地址不可用， 则 MTC服务器可以使用 MTC设备触 发来与 MTC设备建立通信。如果网络不能触发 MTC设备， 则网络向 MTC 服务器报告 MTC设备触发失败， MTC设备触发在 3GPP中通过控制面信 令实现。
MTC设备触发包括移动主叫（ MO, Mobile Originated )和移动被叫（ MT, Mobile Terminating ) 业务， 即包括 MTC设备发送或者接收信息。
为了实现 MTC设备触发请求的有效传输， 已提出的方案包括： 通过短 信 SMS发送 MTC设备触发信息，或者通过控制面信令发送 MTC设备触发 信息。 对于通过控制面信令发送 MTC设备触发信息的方式， MTC服务器 发送包含 MTC设备触发信息的控制面信令到网络节点， 网络节点将控制面 信令中的 MTC设备触发信息解析处理， 然后发送 MTC设备触发信息到用 户设备（UE, User Equipment )。 3GPP中的 MTC架构如图 1所示， 在用户 面， 连接 MTC用户 （ User ) 的 MTC应用设备 ( Application )通过 API接 口与 MTC服务器通信， 或者通过 Gi/SGi接口直接与 3GPP网络中的网关 GPRS支持节点 （GGSN, Gateway GPRS Support Node ) /PGW/演进分组数 据网关（EPDG )通信； MTC服务器通过 MTCi接口与 GGSN/PGW/EPDG 通信； GGSN/PGW/EPDG通过无线接入网（ RAN )与用户设备 ( UE )通信； 在控制面， MTC服务器通过 MTCsp接口向 MTC互联功能（ MTC-IWF, MTC InterWorking Function )发送包含 MTC设备触发信息的控制面信令或 通过 MTCsms 接口向短信业务-业务中心 （ SMS-SC , Short Message Service-Service Centre )/IP短信网关（ IP-SM-GW, IP-Short-Message-Gateway ) 发送包含 MTC 设备触发信息的控制 面信令， MTC-IWF 或 SMS-SC/IP-SM-GW将控制面信令发送到 MME/SGSN或短信业务-移动业 务交换中心网关 （ SMS-GMSC, Gateway MSC For Short Message Service ) 或短信业务路由器 （ SMS Router ) 或移动业务交换中心 （ MSC , Mobile-services Switching Centre )或拜访位置寄存器（ VLR ),进而通过 RAN 发送到 UE; 其中， MME/SGSN还可以通过 Gr/S6a/S6d接口从归属用户服 务器 （HSS , Home Subscriber Server ) 或归属位置寄存器 （ HLR, Home Location Register ) ( HSS/HLR )获得所述控制面信令。
图 2为 MTC服务器通 SMS-SC/IP-SM-GW发送包含 MTC设备触发信 息的控制面信令的示意图， 其中， MTC服务器通过 MTCsms接口直接发送 包含 MTC 设备触发信息的控制面信令到 SMS-SC/IP-SM-GW , SMS-SC/IP-SM-GW依次通过 SMS-GMSC、 SMS Router、 MSC/VLR或 SGSN 传送 MTC设备触发信息， 并最终发送到 UE。
但目前在 3GPP的 MTC架构的控制面， MTC设备触发信息的内容没 有确定， 还没有对 MTC设备触发信息在 3GPP网络节点处理的方案， 不能 满足 MTC设备触发信息在 3GPP网络中的传输的要求。 发明内容
有鉴于此，本发明的主要目的在于提供一种发送 MTC设备触发信息的 方法、系统和目标用户设备，实现 3GPP网络中 MTC设备触发信息的发送。
为达到上述目的， 本发明的技术方案是这样实现的：
本发明提供的一种发送 MTC设备触发信息的方法， 该方法包括： MTC服务器设置 MTC设备触发信息内容，并将 MTC设备触发信息发 送到网络节点设备；
网络节点设备查找到目标用户设备对应的核心网设备， 将接收到的
MTC设备触发信息发送到所述核心网设备；
核心网设备通过 RAN向目标用户设备转发所述 MTC设备触发信息； 目标用户设备接收所述 MTC设备触发信息， 向核心网设备发送 MTC 设备触发信息确认消息。
上述方案中，所述 MTC设备触发信息内容包括： MTC设备标识和 MTC 设备触发有效时间。
上述方案中，所述 MTC设备标识为 3GPP网络外部标识，对应的 3GPP 网络内部标识为国际移动用户识别 （ IMSI , Internal Mobile Subscriber
Identifier ), 所述外部标识和内部标识之间的映射通过 MTC IWF或 HSS或
HLR完成。 上述方案中， 所述 MTC设备触发信息内容还包括以下至少一种： 应用 标识、 MTC设备触发信息的优先级、 MTC服务器 IP地址、 端口、 MTC设 备触发计数。
上述方案中， 所述将所述 MTC设备触发信息发送到网络节点设备为： 根据 MTC设备触发信息内容中的 MTC设备标识推导出 3GPP网络内部标 识 IMSI,根据 3GPP网络内部标识 IMSI查找到目标用户设备对应的网络节 点设备， 将所述 MTC设备触发信息发送到所述网络节点设备。
上述方案中， 所述网络节点设备查找到目标用户设备对应的核心网设 备， 将接收到的 MTC设备触发信息发送到所述核心网设备， 为：
网络节点设备接收 MTC设备触发信息， 将 MTC设备触发信息内容中 的 MTC设备标识修改为 3GPP网络内部标识 IMSI,通过 HSS或 HLR查找 到目标用户设备对应的核心网设备，并将所述 MTC设备触发信息发送到所 述核心网设备。
上述方案中， 该方法进一步包括： 网络节点设备在发送所述 MTC设备 触发信息失败后， 重发所述 MTC设备触发信息。
上述方案中， 该方法进一步包括： 网络节点设备在重发所述 MTC设备 触发信息之前， 根据 MTC设备触发信息内容中的 MTC设备触发有效时间 确定是否删除所述 MTC设备触发信息。
上述方案中， 所述核心网设备通过无线接入网向目标用户设备转发所 述 MTC设备触发信息为：核心网设备通过无线接入网中正在进行的信令连 接、 或寻呼 （page ) 消息、 或广播消息系统信息块（SIB ), 向目标用户设 备转发所述 MTC设备触发信息。
上述方案中， 该方法进一步包括： 核心网设备根据 MTC设备触发信息 内容中的 MTC设备触发信息的优先级为紧急时， 立即转发所述 MTC设备 触发信息。 上述方案中， 该方法进一步包括： 核心网设备在重发所述 MTC设备触 发信息之前， 根据 MTC设备触发信息内容中的 MTC设备触发有效时间确 定是否删除所述 MTC设备触发信息。
上述方案中， 该方法进一步包括： 所述目标用户设备向核心网设备发 送 MTC设备触发信息确认消息之后， 通过 MTC设备触发信息内容中的 MTC设备触发计数信息判断 MTC设备触发信息是否重复， 在不重复时请 求建立 PDN连接或激活分组数据协议 ( PDP )上下文。
上述方案中， 该方法进一步包括： 所述目标用户设备根据 MTC设备触 发信息内容中的 MTC服务器的地址、 端口信息与 MTC服务器建立应用层 通信。
上述方案中，所述网络节点设备为 MTC IWF或 HSS或 HLR或 SMS-SC 或 IP-SM-GW;
所述核心网设备为 MME或服务通用分组无线服务技术（GPRS ) 支持 节点 （SGSN ) 或短信业务-移动业务交换中心网关 （SMS-GMSC )或短信 业务路由器（SMS Router )或移动业务交换中心 （ MSC )。
本发明提供的一种发送 MTC设备触发信息的系统，该系统包括： MTC 服务器、 网络节点设备、 核心网设备、 目标用户设备； 其中，
MTC服务器， 用于设置 MTC设备触发信息内容， 并将 MTC设备触发 信息发送到网络节点设备；
网络节点设备， 用于查找到目标用户设备对应的核心网设备， 将接收 到的 MTC设备触发信息发送到所述核心网设备；
核心网设备，用于通过无线接入网向目标用户设备转发所述 MTC设备 触发信息；
目标用户设备， 用于接收所述 MTC设备触发信息， 向核心网设备发送 MTC设备触发信息确认消息。 上述方案中， 所述网络节点设备， 具体用于接收 MTC设备触发信息， 将 MTC设备触发信息内容中的 MTC设备标识修改为 3GPP网络内部标识 IMSI, 通过 HSS或 HLR查找到目标用户设备对应的核心网设备， 并将所 述 MTC设备触发信息发送到所述核心网设备。
本发明提供的一种目标用户设备， 该目标用户设备包括接收单元和发 送单元， 其中，
接收单元，用于接收核心网设备发送的 MTC设备触发信息，所述 MTC 设备触发信息的内容由 MTC服务器设置；
发送单元， 用于向核心网设备发送 MTC设备触发信息确认消息。 本发明提供了一种发送 MTC设备触发信息的方法、 系统和目标用户设 备， MTC服务器设置 MTC设备触发信息内容， 并将所述 MTC设备触发信 息发送到网络节点设备； 网络节点设备查找到目标用户设备对应的核心网 设备， 将接收到的 MTC设备触发信息发送到所述核心网设备； 核心网设备 向目标用户设备转发所述 MTC设备触发信息；目标用户设备接收所述 MTC 设备触发信息， 向核心网设备发送 MTC设备触发信息确认消息； 如此， 能 够实现 3GPP网络中 MTC设备触发信息的发送， 确定了 MTC设备触发信 息的内容和网络节点设备对 MTC设备触发信息的处理方案。 附图说明
图 1为现有技术中 3GPP中的 MTC架构示意图；
图 2为现有技术中 MTC服务器通 SMS-SC/IP-SM-GW发送包含 MTC 设备触发信息的控制面信令的示意图；
图 3为本发明实现一种发送 MTC设备触发信息的方法的流程示意图； 图 4为本发明实现一种发送 MTC设备触发信息的系统的结构示意图； 图 5为本发明实施例一实现发送 MTC设备触发信息的方法的流程示意 图； 图 6为本发明实施例二实现发送 MTC设备触发信息的方法的流程示意 图。 具体实施方式
本发明的基本思想是： MTC服务器设置 MTC设备触发信息内容， 并 将所述 MTC设备触发信息发送到网络节点设备； 网络节点设备查找到目标 用户设备对应的核心网设备，将接收到的 MTC设备触发信息发送到所述核 心网设备； 核心网设备通过 RAN向目标用户设备转发所述 MTC设备触发 信息； 目标用户设备接收所述 MTC设备触发信息，向核心网设备发送 MTC 设备触发信息确认消息。
下面通过附图及具体实施例对本发明做进一步的详细说明。
本发明实现一种发送 MTC设备触发信息的方法， 如图 3所示， 该方法 包括以下几个步驟：
步驟 101 , MTC服务器设置 MTC设备触发信息内容， 并将所述 MTC 设备触发信息发送到网络节点设备；
具体的， MTC服务器设置 MTC设备触发信息内容，根据 MTC设备触 发信息内容中的 MTC设备标识推导出 3GPP网络内部标识 IMSI,根据 3GPP 网络内部标识 IMSI查找到目标用户设备对应的网络节点设备，将所述 MTC 设备触发信息发送到所述网络节点设备；
所述 MTC服务器位于 3GPP网络外或 3GPP网络中； 所述 MTC设备 触发信息内容包括： MTC设备标识（ Device ID )和 MTC设备触发有效时 间 （validity timer ); 进一步的， 所述 MTC设备触发信息内容还包括以下至 少一种： 应用标识（APP ID )、 MTC设备触发信息的优先级、 MTC服务器 IP地址、 端口、 MTC设备触发计数（ counter )等；
其中， MTC设备标识用于标识目标用户设备， 所述 MTC设备标识为 3GPP网络外部标识，对应的 3GPP网络内部标识为 IMSI, 所述外部标识和 了实现对多个目标用户设备的 MTC设备触发， 所述 MTC设备标识还可以 是组标识（ group ID ); MTC设备触发有效时间用于指示删除 MTC设备触 发信息的时间； 应用标识用于标识目标用户设备上需要的签约应用； MTC 设备触发信息的优先级用于表明该 MTC设备触发信息是否为紧急或一般； MTC服务器 IP地址、 端口用于标识发起 MTC设备触发信息的 MTC服务 器的地址、 端口； MTC设备触发计数用于指示是否为重复的 trigger请求信 进一步的， 在 MTC设备触发信息内容中包含应用标识时， 所述 MTC 服务器还可以根据 MTC设备触发信息内容中的应用标识推导出 3GPP网络 内部标识 IMSI;
所述网络节点设备位于 3GPP 网络中， 可以为以下任意一种： MTC-IWF, HSS/HLR, SMS-SC、 IP-SM-GW。
步驟 102, 网络节点设备查找到目标用户设备对应的核心网设备， 将接 收到的 MTC设备触发信息发送到所述核心网设备；
具体的， 网络节点设备接收 MTC设备触发信息， 将 MTC设备触发信 息内容中的 MTC设备标识修改为 3GPP网络内部标识 IMSI, 通过 HSS或 HLR查找到目标用户设备对应的核心网设备， 并将所述 MTC设备触发信 息发送到所述核心网设备； 所述网络节点设备为 HSS/HLR 时， HSS/HLR 通过本地记录查找到目标用户设备对应的核心网设备；
所述核心网设备一般是 MME或 SGSN ( MME/SGSN )或 SMS-GMSC 或 SMS Router或 MSC;
其中， SMS-GMSC或 SMS Router或 MSC为采用 SMS方式发送 MTC 设备触发信息时， SMS-SC或 IP-SM-GW对应的核心网设备；
本步驟还包括： 网络节点设备在发送所述 MTC设备触发信息失败后， 重发所述 MTC设备触发信息； 进一步的， 网络节点设备在重发所述 MTC 设备触发信息之前， 根据 MTC设备触发信息内容中的 MTC设备触发有效 时间确定是否删除所述 MTC设备触发信息， 即达到所述 MTC设备触发有 效时间时， 网络节点设备删除所述 MTC设备触发信息， 不进行重发操作， 并通知 MTC服务器。
步驟 103 , 核心网设备通过 RAN向目标用户设备转发所述 MTC设备 触发信息；
具体的，核心网设备通过 RAN中正在进行的信令连接、或寻呼（ age ) 消息、 或广播消息 SIB, 向目标用户设备转发所述 MTC设备触发信息； 所 述信令连接可以是： 专用非接入层（NAS, Non Access Stratum )消息过程， 如 DOWNLINK GENERIC NAS TRANSPORT消息和 UPLINK GENERIC NAS TRANSPORT消息； 所述 RAN是指 eNB；
本步驟进一步包括:核心网设备根据 MTC设备触发信息内容中的 MTC 设备触发信息的优先级， 确定是否立即转发所述 MTC设备触发信息， 如 MTC设备触发信息的优先级为紧急时， 核心网设备立即转发所述 MTC设 备触发信息；
本步驟还包括： 核心网设备在因为网络拥塞或过载导致发送所述 MTC 设备触发信息失败后， 重发所述 MTC设备触发信息； 进一步的， 核心网设 备在重发所述 MTC设备触发信息之前， 根据 MTC设备触发信息内容中的 MTC设备触发有效时间确定是否删除所述 MTC设备触发信息， 即达到所 述 MTC设备触发有效时间时， 核心网设备删除所述 MTC设备触发信息， 不进行重发操作， 并通知 MTC服务器。
步驟 104, 目标用户设备接收所述 MTC设备触发信息， 向核心网设备 发送 MTC设备触发信息确认消息；
本步驟进一步包括：所述目标用户设备向核心网设备发送 MTC设备触 发信息确认消息之后， 通过 MTC设备触发信息内容中的 MTC设备触发计 数信息判断 MTC设备触发信息是否重复， 如果是则流程结束， 否则目标用 户设备可以请求建立 PDN连接或激活分组数据协议 ( PDP )上下文（PDN connection/PDP context ), 如果 PDN连接已存在， 则不需要重新建立 PDN 连接；
进一步的， 所述目标用户设备根据 MTC设备触发信息内容中的 MTC 服务器的地址、 端口信息与 MTC服务器建立应用层通信。
为了实现上述方法， 本发明还提供一种发送 MTC设备触发信息的系 统， 如图 4所示， 该系统包括： MTC服务器 31、 网络节点设备 32、 核心 网设备 33、 目标用户设备 34; 其中，
MTC服务器 31 , 用于设置 MTC设备触发信息内容， 并将所述 MTC 设备触发信息发送到网络节点设备 32;
所述 MTC服务器 31 , 具体用于设置 MTC设备触发信息内容， 根据 MTC设备触发信息内容中的 MTC设备标识推导出 3GPP 网络内部标识 IMSI, 根据 3GPP网络内部标识 IMSI查找到目标用户设备对应的网络节点 设备 32, 将所述 MTC设备触发信息发送到所述网络节点设备 32;
所述 MTC设备触发信息内容包括： MTC设备标识和 MTC设备触发有 效时间；
进一步的， 所述 MTC设备触发信息内容还包括以下至少一种： 应用标 识、 MTC设备触发信息的优先级、 MTC服务器 IP地址、 端口、 MTC设备 触发计数等；
网络节点设备 32 , 用于查找到目标用户设备 34对应的核心网设备 33 , 将接收到的 MTC设备触发信息发送到所述核心网设备 33;
所述网络节点设备 32, 具体用于接收 MTC设备触发信息， 将 MTC设 备触发信息内容中的 MTC设备标识修改为 3GPP网络内部标识 IMSI,通过 HSS/HLR查找到目标用户设备 34对应的核心网设备 33 ,并将所述 MTC设 备触发信息发送到所述核心网设备 33;
所述网络节点设备 32, 进一步用于在发送所述 MTC设备触发信息失 败后， 重发所述 MTC设备触发信息；
进一步的， 所述网络节点设备 32, 还用于在重发所述 MTC设备触发 信息之前， 根据 MTC设备触发信息内容中的 MTC设备触发有效时间确定 是否删除所述 MTC设备触发信息；
核心网设备 33 , 用于通过 RAN向目标用户设备 34转发所述 MTC设 备触发信息；
所述核心网设备 34,具体用于通过 RAN中正在进行的信令连接、或寻 呼消息、 或广播消息 SIB, 向目标用户设备 34转发所述 MTC设备触发信 进一步的， 所述核心网设备 33 , 还用于根据 MTC设备触发信息内容 中的 MTC设备触发信息的优先级， 确定是否立即转发所述 MTC设备触发 信息；
所述核心网设备 33 ,还用于在因为网络拥塞或过载导致发送所述 MTC 设备触发信息失败后， 重发所述 MTC设备触发信息；
进一步的， 所述核心网设备 33 , 还用于在重发所述 MTC设备触发信 息之前， 根据 MTC设备触发信息内容中的 MTC设备触发有效时间确定是 否删除所述 MTC设备触发信息；
目标用户设备 34, 用于接收所述 MTC设备触发信息， 向核心网设备 33发送 MTC设备触发信息确认消息；
所述目标用户设备 34, 还用于在向核心网设备 33发送 MTC设备触发 信息确认消息之后， 通过 MTC设备触发信息内容中的 MTC设备触发计数 信息判断 MTC设备触发信息是否重复， 如果是则流程结束， 否则目标用户 设备 34请求建立 PDN连接或激活 PDP上下文，如果 PDN连接已存在， 则 不重新建立 PDN连接。
所述目标用户设备 34包括接收单元 341和发送单元 342, 其中， 接收单元 341 , 用于接收核心网设备 33发送的 MTC设备触发信息， 所述 MTC设备触发信息的内容由 MTC服务器 31设置；
发送单元 342, 用于向核心网设备 33发送 MTC设备触发信息确认消 基于上述系统， 本发明还提供一种目标用户设备， 如图 4所示， 该目 标用户设备 34包括接收单元 341和发送单元 342 , 其中，
接收单元 341 , 用于接收核心网设备 33发送的 MTC设备触发信息， 所述 MTC设备触发信息的内容由 MTC服务器 31设置；
发送单元 342, 用于向核心网设备 33发送 MTC设备触发信息确认消
实施例一
本实例针对 MTC设备触发信息通过 MTC IWF发送的场景， 实现发送 MTC设备触发信息的方法， 如图 5所示， 该方法包括以下几个步驟：
步驟 201， MTC服务器设置 MTC设备触发信息内容；
本步驟中， 所述 MTC设备触发信息内容包括： MTC设备标识、 MTC 设备触发有效时间；
进一步的， 所述 MTC设备触发信息内容还包括以下至少一种： 应用标 识、 MTC设备触发信息的优先级、 MTC服务器 IP地址、 端口、 MTC设备 触发计数等；
所述 MTC服务器根据 MTC设备触发信息中的 MTC设备标识和 /或应 用标识推导出 3GPP网络内部标识 IMSI, 根据 3GPP网络内部标识查找到 目标用户设备对应的 MTC IWF。
步驟 202, MTC服务器发送所述 MTC设备触发信息到 MTC IWF; 具体的，所述 MTC服务器通过 MTCsp接口发送所述 MTC设备触发信 息到 MTC IWF;所述 MTC设备触发信息通过 MTCsp接口上的控制信令承 载。
步驟 203 , MTC IWF查找目标用户设备对应的 MME/SGSN;
具体的， 所述 MTC IWF将 MTC设备触发信息中的 MTC设备标识改 为 3GPP网络内部标识 IMSI,并通过 HSS/HLR查询得到目标用户设备对应 的 MME/SGSN;
这里， 所述 MTC IWF和 HSS/HLR之间建立有通信接口。
步驟 204 , MTC IWF将 MTC设备触发信息发送到所述 MME/SGSN; 本步驟中，如果所述 MME/SGSN正在服务目标用户设备，则 MTC IWF 立即发送 MTC设备触发信息到所述 MME/SGSN, 否则 MTC IWF等待 UE 注册到所述 MME/SGSN后再发送 MTC设备触发信息；
当 MTC IWF向 MME/SGSN发送 MTC设备触发信息失败时， MTC IWF 重发 MTC设备触发信息； 需要指出的是， 在 MTC IWF重发 MTC设备触 发信息之前， MTC IWF需要判断 MTC设备触发有效时间是否超时， 如果 是则 MTC IWF停止重发， 删除 MTC设备触发信息记录， 并通知 MTC服 务器。
步驟 205 , 所述 MME/SGSN根据 MTC设备触发信息内容判断是否立 即转发 MTC设备触发信息， 如果是， 则执行步驟 206, 否则执行步驟 210; 具体的，所述 MME/SGSN可以根据 MTC设备触发信息内容中的 MTC 设备触发信息的优先级， 判断是否需要立即转发 trigger信息， 当所述优先 级为紧急时， 需要立即发送， 执行步驟 206, 优先级为一般时， 执行步驟 210。 步驟 206, MME/SGSN通过 RAN向目标用户设备发送 MTC设备触发 信息；
所述目标用户设备可以是以下任意一种： UE、 移动设备 （Mobile Equipment )、 移动台 （ Mobile Station )等； 所述目标用户设备一般配置有支 持 MTC特性的功能；
所述 MTC设备触发信息通过正在进行的信令连接、 或寻呼消息、 或广 播消息 SIB承载发送； 所述信令连接可以是专用 NAS消息过程；
进一步的，当 MME/SGSN通过 RAN向 UE发送 MTC设备触发信息失 败时， 例如由于网络拥塞 /过载导致发送 MTC设备触发信息失败时， 所述 MME/SGSN重发 MTC设备触发信息； 这里， 在 MME/SGSN重发 MTC设 备触发信息之前， MME/SGSN判断 MTC设备触发有效时间是否超时， 如 果是则 MME/SGSN停止重发，删除 MTC设备触发信息记录， 并通知 MTC IWF, 进一步的， MTC IWF通知 MTC服务器。
步驟 207 , 目标用户设备接收所述 MTC设备触发信息，向 MME/SGSN 发送 MTC设备触发信息确认消息；
本步驟进一步包括： 所述目标用户设备向 MME/SGSN发送 MTC设备 触发信息确认消息之后， 通过 MTC设备触发信息内容中的 MTC设备触发 计数信息判断 MTC设备触发信息是否重复， 如果是则流程结束， 否则目标 用户设备请求建立 PDN连接或激活 PDP上下文；
进一步的， 所述目标用户设备根据 MTC设备触发信息内容中的 MTC 服务器的地址、 端口信息与 MTC服务器建立应用层通信。
步驟 208, MME/SGSN删除 MTC设备触发信息记录，并通知 MTC IWF MTC设备触发信息目标用户设备已接收；
这里 ,所述 MME和 SGSN可能同时或分别向 MTC IWF发送 MTC IWF MTC设备触发信息目标用户设备已接收的确认消息。 步驟 209, MTC IWF删除 MTC设备触发信息记录， 流程结束； 所述 MTC IWF收到 MME和 /或 SGSN的 MTC设备触发信息目标用户 设备已接收的确认消息后， 删除本地的 trigger信息记录。
步驟 210, MME/SGSN在下一次 NAS信令过程发送 MTC设备触发信 息到目标用户设备， 执行步驟 207;
所述 NAS 信令过程可以是以下任意一种消息过程： Attach 过程、 TAU/RAU过程等。
实施例二
本实施例针对 MTC设备触发信息通过 HSS/HLR发送的场景， 实现发 送 MTC设备触发信息的方法， 如图 6所示， 该方法包括以下几个步驟： 步驟 301， MTC服务器设置 MTC设备触发信息内容；
本步驟与步驟 201相同， 此处不再赘述。
步驟 302, MTC服务器发送 MTC设备触发信息到 HSS/HLR;
所述 MTC服务器和 HSS/HLR之间存在接口。
步驟 303 , HLR/HSS查找目标用户设备对应的 MME/SGSN;
具体的， 所述 HSS/HLR将 MTC设备触发信息中的 MTC设备标识改 为 3GPP网络内部标识 IMSI, 并通过本地记录查询得到目标用户设备对应 的 MME/SGSN。
步驟 304 , HSS/HLR将 MTC设备触发信息发送到所述 MME/SGSN; 本步驟中，如果所述 MME/SGSN正在服务目标用户设备，则 HSS/HLR 立即发送 MTC设备触发信息到所述 MME/SGSN, 否则 HSS/HLR等待 UE 注册到所述 MME/SGSN后再发送 MTC设备触发信息；
当 HSS/HLR向 MME/SGSN发送 MTC设备触发信息失败时， HSS/HLR 重发 MTC设备触发信息； 需要指出的是， 在 HSS/HLR重发 MTC设备触 发信息之前， HSS/HLR需要判断 MTC设备触发有效时间是否超时， 如果 是则 HSS/HLR停止重发， 删除 MTC设备触发信息记录， 并通知 MTC服 务器。
步驟 305, 所述 MME/SGSN根据 MTC设备触发信息内容判断是否立 即转发 MTC设备触发信息， 如果是， 则执行步驟 306, 否则执行步驟 310; 具体的，所述 MME/SGSN可以根据 MTC设备触发信息内容中的 MTC 设备触发信息的优先级， 判断是否需要立即转发 trigger信息， 当所述优先 级为紧急时， 需要立即发送， 执行步驟 306, 优先级为一般时， 执行步驟 310。
步驟 306, MME/SGSN通过 RAN向目标用户设备发送 MTC设备触发 信息；
本步驟与步驟 206相同， 此处不再赘述。
步驟 307, 目标用户设备接收所述 MTC设备触发信息，向 MME/SGSN 发送 MTC设备触发信息确认消息；本步驟与步驟 207相同，此处不再赘述； 步驟 308, MME/SGSN删除 MTC设备触发信息记录，并通知 HSS/HLR MTC设备触发信息目标用户设备已接收；
步驟 309, HSS/HLR删除 MTC设备触发信息记录， 流程结束； 所述 HSS/HLR收到 MME和 /或 SGSN的 MTC设备触发信息目标用户 设备已接收的确认消息后， 删除本地的 MTC设备触发信息记录。
步驟 310, MME/SGSN在下一次 NAS信令过程发送 MTC设备触发信 息到目标用户设备，执行步驟 307;本步驟与步驟 210相同，此处不再赘述。
通过上述方案， 能够实现 3GPP网络中 MTC设备触发信息的发送， 确 定了 MTC设备触发信息的内容和网络节点设备对 MTC设备触发信息的处 理方案。
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保 护范围。

Claims

权利要求书
1、一种发送机器类型通信（MTC )设备触发信息的方法， 其特征在于， 该方法包括：
MTC服务器设置 MTC设备触发（ trigger )信息内容， 并将 MTC设备 触发信息发送到网络节点设备；
网络节点设备查找到目标用户设备对应的核心网设备， 将接收到的 MTC设备触发信息发送到所述核心网设备；
核心网设备通过无线接入网（RAN )向目标用户设备转发所述 MTC设 备触发信息；
目标用户设备接收所述 MTC设备触发信息， 向核心网设备发送 MTC 设备触发信息确认消息。
2、 根据权利要求 1所述的方法， 其特征在于， 所述 MTC设备触发信 息内容包括： MTC设备标识和 MTC设备触发有效时间。
3、 根据权利要求 2所述的方法， 其特征在于， 所述 MTC设备标识为 第三代合作伙伴计划 （3GPP ) 网络外部标识， 对应的 3GPP网络内部标识 为国际移动用户识别 （IMSI ), 所述外部标识和内部标识之间的映射通过 MTC互联功能（MTC IWF )或归属用户服务器（HSS )或归属位置寄存器
( HLR ) 完成。
4、 根据权利要求 3所述的方法， 其特征在于， 所述 MTC设备触发信 息内容还包括以下至少一种：应用标识、 MTC设备触发信息的优先级、 MTC 服务器 IP地址、 端口、 MTC设备触发计数。
5、 根据权利要求 4所述的方法， 其特征在于， 所述将所述 MTC设备 触发信息发送到网络节点设备为： 根据 MTC设备触发信息内容中的 MTC 设备标识推导出 3 GPP网络内部标识 IMSI , 根据 3 GPP网络内部标识 IMSI 查找到目标用户设备对应的网络节点设备，将所述 MTC设备触发信息发送 到所述网络节点设备。
6、 根据权利要求 4所述的方法， 其特征在于， 所述网络节点设备查找 到目标用户设备对应的核心网设备，将接收到的 MTC设备触发信息发送到 所述核心网设备， 为：
网络节点设备接收 MTC设备触发信息， 将 MTC设备触发信息内容中 的 MTC设备标识修改为 3GPP网络内部标识 IMSI,通过 HSS或 HLR查找 到目标用户设备对应的核心网设备，并将所述 MTC设备触发信息发送到所 述核心网设备。
7、 根据权利要求 6所述的方法， 其特征在于， 该方法进一步包括： 网 络节点设备在发送所述 MTC设备触发信息失败后， 重发所述 MTC设备触 发信息。
8、 根据权利要求 7所述的方法， 其特征在于， 该方法进一步包括： 网 络节点设备在重发所述 MTC设备触发信息之前， 根据 MTC设备触发信息 内容中的 MTC设备触发有效时间确定是否删除所述 MTC设备触发信息。
9、 根据权利要求 4所述的方法， 其特征在于， 所述核心网设备通过无 线接入网向目标用户设备转发所述 MTC设备触发信息为：核心网设备通过 无线接入网中正在进行的信令连接、 或寻呼（page )消息、 或广播消息系统 信息块（ SIB )， 向目标用户设备转发所述 MTC设备触发信息。
10、 根据权利要求 9所述的方法， 其特征在于， 该方法进一步包括： 核心网设备根据 MTC设备触发信息内容中的 MTC设备触发信息的优先级 为紧急时， 立即转发所述 MTC设备触发信息。
11、 根据权利要求 9所述的方法， 其特征在于， 该方法进一步包括： 核心网设备在重发所述 MTC设备触发信息之前， 根据 MTC设备触发信息 内容中的 MTC设备触发有效时间确定是否删除所述 MTC设备触发信息。
12、 根据权利要求 4所述的方法， 其特征在于， 该方法进一步包括： 所述目标用户设备向核心网设备发送 MTC设备触发信息确认消息之后，通 过 MTC设备触发信息内容中的 MTC设备触发计数信息判断 MTC设备触 发信息是否重复， 在不重复时请求建立分组数据网 （PDN )连接或激活分 组数据协议 ( PDP )上下文。
13、 根据权利要求 4所述的方法， 其特征在于， 该方法进一步包括： 所述目标用户设备根据 MTC设备触发信息内容中的 MTC服务器的地址、 端口信息与 MTC服务器建立应用层通信。
14、 根据权利要求 1至 13任一项所述的方法， 其特征在于，
所述网络节点设备为 MTC IWF或 HSS或 HLR或短信业务-业务中心 ( SMS-SC )或 IP短信网关 ( IP-SM-GW );
所述核心网设备为移动管理实体（MME )或服务通用分组无线服务技 术 （ GPRS ) 支持节点 （ SGSN ) 或短信业务-移动业务交换中心网关 ( SMS-GMSC ) 或短信业务路由器 （SMS Router ) 或移动业务交换中心 ( MSC )。
15、 一种发送 MTC设备触发信息的系统， 其特征在于， 该系统包括： MTC服务器、 网络节点设备、 核心网设备、 目标用户设备； 其中，
MTC服务器， 用于设置 MTC设备触发信息内容， 并将 MTC设备触发 信息发送到网络节点设备；
网络节点设备， 用于查找到目标用户设备对应的核心网设备， 将接收 到的 MTC设备触发信息发送到所述核心网设备；
核心网设备，用于通过无线接入网向目标用户设备转发所述 MTC设备 触发信息；
目标用户设备， 用于接收所述 MTC设备触发信息， 向核心网设备发送 MTC设备触发信息确认消息。
16、 根据权利要求 15所述的系统， 其特征在于， 所述网络节点设备， 具体用于接收 MTC设备触发信息， 将 MTC设备触发信息内容中的 MTC 设备标识修改为 3GPP网络内部标识 IMSI, 通过 HSS或 HLR查找到目标 用户设备对应的核心网设备，并将所述 MTC设备触发信息发送到所述核心 网设备。
17、 根据权利要求 15所述的系统， 其特征在于， 所述目标用户设备包 括接收单元和发送单元， 其中，
接收单元， 用于接收核心网设备发送的 MTC设备触发信息； 发送单元， 用于向核心网设备发送 MTC设备触发信息确认消息。
18、 一种目标用户设备， 其特征在于， 该目标用户设备包括接收单元 和发送单元， 其中，
接收单元，用于接收核心网设备发送的 MTC设备触发信息，所述 MTC 设备触发信息的内容由 MTC服务器设置；
发送单元， 用于向核心网设备发送 MTC设备触发信息确认消息。
PCT/CN2011/083781 2011-08-24 2011-12-09 发送mtc设备触发信息的方法、系统和目标用户设备 WO2012151981A1 (zh)

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