Method and device for trigger management of a common service entity (CSE) and a network element of bearer network

1. A method for trigger management of a Common Service Entity (CSE), comprising:

sending, by the CSE, a trigger request to a network element of a bearer network, wherein the trigger request carries the following information: a trigger message, an external identifier of the CSE, an identifier of a triggered device and a resource identifier of a trigger resource corresponding to the trigger request;

receiving, by the CSE, a trigger response, which corresponds to the trigger request, sent by the network element of the bearer network; and

updating, by the CSE, a first attribute of the trigger resource according to the trigger response.

2. The method as claimed in claim 1 , wherein before the CSE sends the trigger request to the network element of the bearer network, the method comprises:

creating, by the CSE, the trigger resource, and setting, by the CSE, the first attribute for the trigger resource, wherein the first attribute comprises at least one of: the identifier of the triggered device, the resource identifier of the trigger resource, and a trigger status of the trigger resource.

3. The method as claimed in claim 1 , wherein the trigger request further carries at least one of the following information: validity time and a priority indicator;

or the resource identifier of the trigger resource comprises one of: a reference number, and a name of the trigger resource, wherein the reference number is a set of serial numbers used for uniquely identifying the trigger resource.

4. The method as claimed in claim 2 , wherein the first attribute further comprises at least one of: validity time of the trigger message in the bearer network, a priority indicator of the trigger message, and backoff time for re-sending the trigger message;

or further comprising: creating, by the CSE, a trigger policy resource, and setting, by the CSE, a second attribute for the trigger policy resource, wherein the trigger policy resource is a common resource of the trigger resource, and the second attribute comprises: validity time of the trigger message in the bearer network, a priority indicator of the trigger message, and backoff time for re-sending the trigger message;

or the trigger response carries the following information: the resource identifier of the trigger resource and a request status.

5. The method as claimed in claim 2 , further comprising:

after the trigger status changes, sending, by the CSE, a notification message to an Application Entity (AE).

6. The method as claimed in claim 4 , wherein updating, by the CSE, the first attribute of the trigger resource according to the trigger response comprises:

when the request status indicates success, setting, by the CSE according to the resource identifier, the trigger status as being confirmed by the bearer network or backoff-for-trigger; and

when the request status indicates that a sending frequency of the trigger message exceeds a standard or when the request status indicates network overloading, setting, by the CSE according to the resource identifier, the trigger status as backoff-for-trigger.

7. The method as claimed in claim 4 , wherein updating, by the CSE, the first attribute of the trigger resource according to the trigger response comprises:

setting, by the CSE according to the resource identifier, the trigger status as failure when the request status indicates one of the following information: a temporary error, an invalid load, an invalid device identifier, an invalid CSE identifier, non-authorized, invalid validity time, service unavailability and quota exceeding.

8. The method as claimed in claim 6 , further comprising: when the trigger status is backoff-for-trigger and the first attribute comprises backoff time, starting, by the CSE, a timer, and when the timer reaches the backoff time, re-sending, by the CSE, the trigger request.

9. The method as claimed in claim 6 , wherein updating, by the CSE, the first attribute of the trigger resource according to the trigger response comprises:

when the request status indicates success, updating, by the CSE, the first attribute according to a received trigger sending report sent by the network element of the bearer network.

10. The method as claimed in claim 9 , wherein the trigger sending report carries the following information:

the resource identifier of the trigger resource and a sending result of the trigger message.

11. The method as claimed in claim 10 , wherein updating, by the CSE, the first attribute according to the received trigger sending report sent by the network element of the bearer network comprises: when the sending result indicates success, setting, by the CSE, the trigger status as success;

or setting, by the CSE, the first attribute according to the received trigger sending report sent by the network element of the bearer network comprises: setting, by the CSE, the trigger status as failure when the sending result indicates one of the following information: expiration of the trigger message, a temporary error and incapability of sending.

12. The method as claimed in claim 11 , further comprising:

when the trigger status is set as failure, deleting, by the CSE, the trigger resource or re-sending the trigger request.

13. A method for trigger management of a Common Service Entity (CSE) of a service layer, comprising:

receiving, by a network element of a bearer network, a trigger request from a CSE, wherein the trigger request carries the following information: a trigger message, an external identifier of the CSE, an identifier of a triggered device and a resource identifier of a trigger resource corresponding to the trigger request; and

sending, by the network element of the bearer network, a trigger response corresponding to the trigger request to the CSE, wherein the trigger response is used for updating a first attribute of the trigger resource.

14. The method as claimed in claim 13 , wherein the first attribute comprises at least one of:

a device identifier of the triggered device, the resource identifier of the trigger resource, a trigger status of the trigger resource.

15. The method as claimed in claim 13 , wherein the trigger response carries the following information:

the resource identifier of the trigger resource and a request status.

16. A device for trigger management of a Common Service Entity (CSE), applied to a CSE, the device comprising:

a sending component, configured to send a trigger request to a network element of a bearer network, wherein the trigger request carries the following information: a trigger message, an external identifier of the CSE, an identifier of a triggered device and a resource identifier of a trigger resource corresponding to the trigger request;

a receiving component, configured to receive a trigger response, which corresponds to the trigger request, sent by the network element of the bearer network; and

an updating component, configured to update a first attribute of the trigger resource according to the trigger response.

17. The device as claimed in claim 16 , further comprising:

a creation component, configured to create the trigger resource, and set the first attribute for the trigger resource, wherein the first attribute comprises at least one of: the identifier of the triggered device, the resource identifier of the trigger resource, and a trigger status of the trigger resource.

18. A Common Service Entity (CSE), comprising: the device as claimed in claim 16 .

19. A device for trigger management of a Common Service Entity (CSE), comprising:

a receiving component, configured to receive a trigger request from a CSE, wherein the trigger request carries the following information: a trigger message, an external identifier of the CSE, an identifier of a triggered device and a resource identifier of a trigger resource corresponding to the trigger request; and

a sending component, configured to send a trigger response corresponding to the trigger request to the CSE, wherein the trigger response is used for updating a first attribute of the trigger resource.

20. A network element of a bearer network, comprising: the device as claimed in claim 19 .