WO2013113183A1

WO2013113183A1 - Method, device, and system for sending trigger message

Info

Publication number: WO2013113183A1
Application number: PCT/CN2012/072958
Authority: WO
Inventors: 吴昊
Original assignee: 中兴通讯股份有限公司
Priority date: 2012-02-02
Filing date: 2012-03-23
Publication date: 2013-08-08
Also published as: CN103249012A; CN103249012B

Abstract

Disclosed are a method, device, and system for sending a trigger message. The method comprises: upon receiving a terminal trigger message sent by a machine type communication (MTC) application server, an interworking function (IWF) obtaining subscription information indicating whether the terminal subscribes to supporting packet service (PS) only, and according to the subscription information of the terminal, selecting a manner supported by the terminal to send the trigger message. The present invention selects the suitable message sending manner according to the message reception capability of the terminal, so as to ensure that the trigger message can be sent to the terminal, thereby avoiding failure in sending the trigger message and avoiding attempts after the failure in sending the trigger message.

Description

Method, device and system for transmitting trigger message

The present invention relates to a management technology of a machine type communication (MTC) terminal, and more particularly to a method, device and system for transmitting a trigger message to a terminal. Background technique

FIG. 1 is a schematic structural diagram of a cellular wireless communication system. As shown in FIG. 1 , the cellular wireless communication system is mainly composed of a core network (CN, Core Network), an access network (RAN, Radio Access Network), and a terminal. The core network is responsible for non-access layer transactions such as terminal location updates, etc. The core network is also the anchor point of the user plane. The access network includes a base station, or a base station and a base station controller, and the access network is responsible for access layer transactions, such as management of radio resources. The base stations may have physical or logical connections according to actual conditions, such as the base station 1 in FIG. And the connection between the base station 2, the base station 1 and the base station 3, and each base station can be connected to more than one core network node. A user equipment (UE, User Equipment) refers to various devices that can communicate with a cellular wireless communication network, such as a mobile phone or a notebook computer.

The mobility management unit (MME, Mobility Management Entity or Served GPRS Support Node (SGSN)) is the unit responsible for managing terminal access control, location information update, and handover in the core network. Non-access stratum signaling control of the core network to the terminal and the function of registering the terminal to the network.

The Home Subscriber Server (HSS) or the Home Location Register (HLR) is an entity in the core network that is responsible for storing identity information, authentication information, and authorization information of the user equipment. Depending on the situation, the HSS or HLR can be used to store the user's identity information and the binding information of the user and the user device, or only the user's identity information (the gateway can save the binding information of the user and the user device), or directly save the user device. of Identity Information. The HSS or HLR is also responsible for the user's subscription database, as well as the user's authentication and authorization. The service platform can query user or user device information from the HSS or HLR.

The MTC IWF (Machine Type Communication Inter-Working Function) is a connection entity set between the mobile communication network and the external public network, and can implement functions such as protocol conversion, address query, and information storage. The interoperable functional entity is connected to the external application server, and the internal connection can be connected to the HSS/HLR or to the MME/SGSN.

There are usually some services. For example, the monitoring management system needs to obtain monitoring data from the monitoring terminal. The application server is required to trigger the terminal to establish a connection with the application server, and report the data. After receiving the trigger message from the application server, the terminal needs to be able to respond immediately to establish a connection with the application server. At present, in order to meet the triggering requirement of the application server to the terminal, the existing solution sends the trigger information to the HSS through the application server, and then sends the trigger message to the MME or the SGSN through the HSS to query the MME or the SGSN of the service terminal, and then passes the non-access layer. The signaling is sent to the terminal, and the terminal establishes a connection with the application server according to the trigger message.

Considering the service unity of some terminals, such as a remote meter, which does not require voice services, it only needs to send the collected data and receive configuration information, and such terminals only need to support the packet service to meet the data transmission and reception requirements. As a result, the resource usage of the circuit service can be reduced, so that the operator can plan network resources more reasonably, thereby improving network capacity and service quality.

Generally, the services of the circuit switched domain include voice call and circuit switched domain short message service. The circuit switched domain short message service needs to allocate an additional service identifier to the terminal, and needs to occupy the identification resource. The services of the packet switched domain include data services, such as online browsing, online chat, online downloading, and the packet switched domain short message service. The packet switched domain short message does not need to use an additional service identifier and does not occupy the identification resource.

Considering that a terminal that only supports packet services cannot receive short messages from a circuit domain and can only receive short messages from a packet domain, there are various ways to send a trigger message to a terminal, including packet switched domain short message transmission, circuit switched domain short message. Send and non-access stratum (NAS, Non Access Stratum) In the prior art, the application server and the Inter-Working Function (IWF) do not know the capabilities of the terminal and the network when sending the trigger message, so the trigger message sent is Not necessarily received by the terminal. Summary of the invention

In view of this, the main object of the present invention is to provide a method, a device and a system for transmitting a trigger message, which can send a trigger message to the terminal according to the only packet-supporting service (PS only) subscription information of the terminal.

In order to achieve the above object, the technical solution of the present invention is achieved as follows:

A method for sending a trigger message includes:

After receiving the terminal trigger message sent by the machine type communication MTC application server, the interoperation function entity IWF obtains whether the terminal subscribes to the subscription information that only supports the packet service PS only, and selects the terminal to support according to the subscription information of the terminal. The way to send the trigger message. The IWF extracts the identification information of the terminal from the trigger message, and requests the subscription information of the terminal from the home application server HSS or the home subscriber location register HLR according to the identifier information of the terminal, according to the feedback of the HSS or the HLR. The subscription information of the terminal confirms whether the terminal is subscribed to PS only.

Preferably, the sending, according to the subscription information of the terminal, a trigger message sent by the terminal, is:

When the IWF determines that the terminal is subscribed to the PS only, the trigger message is sent to the mobility management entity MME or the serving GPRS support node SGSN, and the trigger is performed by the MME or the SGSN through non-access stratum NAS signaling. A message is sent to the terminal.

Preferably, the sending, according to the subscription information of the terminal, a trigger message sent by the terminal, is: When the IWF determines that the terminal is not subscribed to the PS only, the trigger message is sent to the short message service center SMS-SC, and the trigger message is encapsulated in the short message by the SMS-SC, and the The short message is sent to the mobile switching center MSC, and the trigger message is sent by the MSC to the terminal by using a short message.

A transmitting device for triggering a message, comprising a receiving unit, an obtaining unit and a sending unit, wherein:

a receiving unit, configured to receive a terminal trigger message sent by the MTC application server, where the sending unit is configured to send the trigger message according to the manner that the terminal subscription information is selected by the terminal.

Preferably, the obtaining unit includes an extracting module, a requesting module, and a confirming module, where: an extracting module is configured to extract identification information of the terminal from the trigger message; and a requesting module, configured to use, according to the identification information of the terminal Requesting subscription information of the terminal to the HSS or the HLR;

And an acknowledgment module, configured to confirm, according to the subscription information of the terminal that is fed back by the HSS or the HLR, whether the terminal is subscribed to the PS only.

Preferably, the sending unit is further configured to, when determining that the terminal is subscribed to the PS only, send the trigger message to the mobility management entity MME or the serving GPRS support node SGSN, and the MME or the SGSN is not connected. The inbound NAS signaling sends the trigger message to the terminal.

Preferably, the sending unit is further configured to, when determining that the terminal is not subscribed to the PS only, send the trigger message to the SMS-SC, where the trigger message is encapsulated in the short message by the SMS-SC. And sending the short message to the MSC, where the MSC sends the trigger message to the terminal by using a short message.

A sending system for triggering messages, including an IWF and an MTC application server, where: The IWF is configured to receive a terminal trigger message sent by the MTC application server, obtain whether the terminal subscribes to the subscription information of the PS only, and select the manner supported by the terminal to send the trigger message according to the subscription information of the terminal.

Preferably, the system further comprises: an HSS or an HLR;

The IWF is further configured to: extract the identification information of the terminal from the trigger message, request the subscription information of the terminal from the home application server HSS or the home subscriber location register HLR according to the identifier information of the terminal, according to the HSS or the HLR. The subscribed subscription information of the terminal confirms whether the terminal is subscribed to PS only.

Preferably, the system further includes: an MME or an SGSN;

The IWF is further configured to, when determining that the terminal is subscribed to the PS only, send the trigger message to the MME or the SGSN, where the trigger message is sent by the MME or the SGSN by using NAS signaling. terminal.

Preferably, the system further comprises an SMS-SC and an MSC;

The IWF is further configured to send the trigger message to the SMS-SC when the terminal is not subscribed to the PS only, and the trigger message is encapsulated in the short message by the SMS-SC, and Sending the short message to the MSC, and sending, by the MSC, the trigger message to the terminal by using a short message.

In the present invention, after receiving the terminal trigger message sent by the MTC application server, the IWF obtains whether the terminal subscribes to the subscription information of the PS only, and selects the manner supported by the terminal to send the trigger message according to the subscription information of the terminal. . The invention selects an appropriate message sending mode according to the message receiving capability supported by the terminal, ensures that the trigger message can be sent to the terminal, avoids the failure of sending the trigger message, and avoids multiple attempts after the trigger message is sent. DRAWINGS

1 is a schematic structural diagram of a cellular wireless communication system;

2 is a flowchart of a method for sending a trigger message according to an embodiment of the present invention; FIG. 3 is a schematic structural diagram of a device for sending a trigger message according to an embodiment of the present invention. detailed description

The basic idea of the present invention is: after receiving the terminal trigger message sent by the MTC application server, the IWF obtains whether the terminal subscribes to the PS only subscription information, and selects a manner supported by the terminal according to the subscription information of the terminal. The trigger message.

The present invention will be further described in detail below with reference to the accompanying drawings.

FIG. 2 is a flowchart of a method for sending a trigger message according to an embodiment of the present invention. As shown in FIG. 2, the method for sending a trigger message in this example includes the following steps:

Step 201: The MTC application server sends a trigger message to the MTC IWF.

When the MTC application server needs to obtain real-time data from the terminal, a trigger message is sent to

MTC Interoperability Functional Entity (MTC IWF). The trigger message contains the identifier of the terminal. Here the identity of the terminal is the external identity used outside the network.

Step 202: The MTC IWF determines the registration HSS or HLR of the terminal.

The MTC IWF local database stores the address or identifier of the HSS. The MTC IWF parses the trigger message. After reading the external identifier of the terminal in the trigger message, the external identifier of the terminal is included in the query information request signaling and sent to the HSS or HLR.

Step 203: The HSS or the HLR determines whether the terminal signs the PS only and notifies the IWF. After receiving the query information request signaling sent by the IWF, the HSS or the HLR obtains the external identifier of the terminal included in the signaling, queries the local database, and reads the subscription data of the terminal. If the subscription data includes "PS only", the query is in the query. The subscription data information of the information response signaling includes "PS only" to be sent to the IWF; if the subscription data does not include "PS only", the "PS only" is not included in the subscription data information of the inquiry information response signaling.

Step 204: When determining, by the IWF, that the terminal is subscribed to the PS only, the IWF sends a trigger message to the terminal. After receiving the query information response signaling sent by the HSS or the HLR, the IWF obtains the signaling The contract data, if the subscription data contains "PS only", the trigger message is sent to the MME or SGSN. The MME or the SGSN sends the trigger message to the terminal through the NAS signaling, and the NAS signaling used to send the trigger message may be "Downlink NAS transport," or "Downlink general NAS transport".

Step 205: The IWF determines that the terminal does not sign the PS only, and sends a trigger message to the terminal. If the subscription data does not contain "PS only", the IWF sends a trigger message to the SMS (SC-SC, Short Message Service - Service Centre). The SMS-SC adds the protocol header to the trigger message according to the short message protocol, and the packet is sent to the mobile switching center (MSC, Mobile Switching Center). The MSC sends a short message encapsulated with the trigger message to the terminal.

FIG. 3 is a schematic structural diagram of a device for sending a trigger message according to an embodiment of the present invention. As shown in FIG. 3, the device for transmitting a trigger message of the present example includes a receiving unit 30, an obtaining unit 31, and a sending unit 32, where:

The receiving unit 30 is configured to receive a terminal trigger message sent by the MTC application server, and the sending unit 32 is configured to send, according to the subscription information of the terminal, the trigger message sent by the terminal.

The acquisition unit 31 includes an extraction module (not shown in Fig. 3), a request module (not shown in Fig. 3), and a confirmation module (not shown in Fig. 3);

An extracting module, configured to extract identification information of the terminal from the trigger message, and a requesting module, configured to request, by the HSS or the HLR, the signing information of the terminal according to the identifier information of the terminal;

The sending unit 32 is further configured to: when determining that the terminal is subscribed to PS only, The trigger message is sent to the mobility management entity MME or the serving GPRS support node SGSN, and the trigger message is sent by the MME or the SGSN to the terminal through non-access stratum NAS signaling.

Or the sending unit 32 is further configured to send the trigger message to the SMS-SC when the terminal is not subscribed to the PS only, and the trigger message is encapsulated in the short message by the SMS-SC. And sending the short message to the MSC, where the MSC sends the trigger message to the terminal by using a short message.

It will be understood by those skilled in the art that the processing unit involved in the transmitting means of the trigger message of FIG. 3 and the functions of the processing module can be implemented by hardware circuits or by the processor executing the corresponding software. The functions of the above processing units and processing modules can be understood in conjunction with the related description of the foregoing method for transmitting a trigger message of the present invention.

The invention also describes a sending system for triggering messages, including an IWF and an MTC application server, wherein:

The IWF is configured to receive a terminal trigger message sent by the MTC application server, obtain the contract information of the PS only, and obtain the trigger message according to the subscription information of the terminal.

The system further includes: an HSS or an HLR;

The IWF is further configured to: extract the identification information of the terminal from the trigger message, request the subscription information of the terminal from the HSS or the HLR according to the identifier information of the terminal, and sign the subscription information of the terminal according to the HSS or the HLR. Confirm whether the terminal is signed to PS only.

The system further includes: an MME or an SGSN;

The IWF is further configured to: when determining the terminal subscription PS only, send the trigger message to the MME or the SGSN, and send, by the MME or the SGSN, the trigger message to the terminal by using NAS signaling.

The system also includes an SMS-SC and an MSC; The IWF is further configured to, when determining that the terminal is not subscribed to the PS only, send the trigger message to the SMS-SC, and the SMS-SC encapsulates the trigger message in a short message, and The short message is sent to the MSC, and the trigger message is sent by the MSC to the terminal by using a short message.

The triggering message sending system of the present invention is implemented by modifying some of the network element structures in the existing MTC communication system, and the system architecture can still be understood by referring to the existing network structure, and the system will not be described in detail. Architectural details.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Industrial applicability

The invention selects an appropriate message sending mode according to the message receiving capability supported by the terminal, ensures that the trigger message can be sent to the terminal, avoids the failure of sending the trigger message, and avoids multiple attempts after the failure of sending the trigger message.

Claims

Claim

A method for transmitting a trigger message, where the method includes:

After receiving the terminal trigger message sent by the machine type communication MTC application server, the interoperation function entity IWF obtains whether the terminal subscribes to the subscription information that only supports the packet service PS only, and selects the terminal to support according to the subscription information of the terminal. The way to send the trigger message.

2. The method according to claim 1, wherein the obtaining, by the terminal, whether the subscription information of the terminal is signed, is:

The IWF extracts the identification information of the terminal from the trigger message, and requests the subscription information of the terminal from the home application server HSS or the home subscriber location register HLR according to the identifier information of the terminal, according to the feedback of the HSS or the HLR. The subscription information of the terminal confirms whether the terminal is subscribed to PS only.

3. The method according to claim 1, wherein the sending a trigger message according to the subscription information of the terminal and the mode supported by the terminal is:

4. The method according to claim 1, wherein the sending a trigger message according to the subscription information of the terminal and the method supported by the terminal is:

When the IWF determines that the terminal is not subscribed to the PS only, the trigger message is sent to the short message service center SMS-SC, and the trigger message is encapsulated in the short message by the SMS-SC, and the The short message is sent to the mobile switching center MSC, and the trigger message is sent by the MSC to the terminal by using a short message.

A device for transmitting a trigger message, where the device includes a receiving unit, an obtaining unit, and a sending unit, where: a receiving unit, configured to receive a terminal trigger message sent by the MTC application server, where the sending unit is configured to send the trigger message in a manner supported by the terminal according to the subscription information of the terminal.

6. The apparatus according to claim 5, wherein the obtaining unit comprises an extracting module, a requesting module, and a confirming module; wherein:

The device according to claim 5, wherein the sending unit is further configured to send the trigger message to the mobility management entity MME or the serving GPRS support node SGSN when determining that the terminal subscribes to PS only And sending, by the MME or the SGSN, the trigger message to the terminal by using non-access stratum NAS signaling.

The device according to claim 5, wherein the sending unit is further configured to send the trigger message to the SMS-SC when determining that the terminal is not subscribed to the PS only, by the SMS-SC The trigger message is encapsulated in the short message, and the short message is sent to the MSC, and the trigger message is sent by the MSC to the terminal by using the short message.

A sending system for triggering a message, wherein the system comprises an IWF and an MTC application server, wherein:

10. The system of claim 9, wherein the system further comprises: an HSS or an HLR; The IWF is further configured to: extract the identification information of the terminal from the trigger message, request the subscription information of the terminal from the home application server HSS or the home subscriber location register HLR according to the identifier information of the terminal, according to the HSS or the HLR. The subscribed subscription information of the terminal confirms whether the terminal is subscribed to PS only.

The system according to claim 9, wherein the system further comprises: an MME or an SGSN;

12. The system according to claim 9, wherein the system further comprises an SMS-SC and an MSC;