WO2016082492A1

WO2016082492A1 - Method for notifying original resource, and corresponding node

Info

Publication number: WO2016082492A1
Application number: PCT/CN2015/079401
Authority: WO
Inventors: 吴昊
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-11-28
Filing date: 2015-05-20
Publication date: 2016-06-02
Also published as: CN105635936A

Abstract

A method for notifying an original resource, and a corresponding node. A local common service entity (CSE) sends a notified resource creation request to remote CSEs which are not notified yet, according to a notification request of an application entity (AE) for the original resource, and starting a timer; if the local CSE receives a success response indicating the successful creation of the notified resource, the local CSE will add the address of the notified resource contained in the success response into a "notified" attribute of the original resource; if the local CSE receives the responses of all remote CSEs which include a success response before the timer is out of time, the timer will be stopped, and a response carrying a current value of the "notified" attribute will be returned to the AE; and if the local CSE receives the success responses of some of the remote CSEs when the timer is out of time, the response carrying a current value of the "notified" attribute will be sent to the AE. The local CSE of the technical solution of the present invention can notify an original resource on an AE onto a remote CSE and return a notification result to the AE in time, thereby avoiding the waste of resources.

Description

Method for original resource notification and corresponding node

Technical field

This document relates to the field of Machine Type Communication (MTC), and more specifically, to a method for managing original resources and corresponding nodes.

Background technique

Figure 1 is a schematic diagram of the M2M system architecture. As shown in the figure, the M2M communication network is composed of various M2M nodes and bearer networks. The M2M nodes communicate with each other through a bearer network. An M2M node includes at least one application entity (AE) or one public service entity (CSE). AE is the logical unit that performs the actual M2M application, and CSE is the logical unit that manages and services the application.

The M2M node in the M2M system architecture includes an application node, an intermediate node, and a base node, wherein the application node is an end execution node, such as a smart meter, a temperature measurement and control sensor, a fire alarm, a smart home appliance, etc.; the intermediate node is a connection end execution The middleware of the node to the network side server, such as a gateway; the base node is the server on the network side.

The communication between the M2M applications is realized through the interaction between the CSEs. The M2M applications are connected to the CSE through the X interface, and the CSEs communicate through the Y interface. The premise of the communication is that the M2M application first needs to be registered in the local CSE, and then In order to realize the interaction of M2M applications through communication between CSEs.

The AE needs to register with the CSE on the intermediate node to join the M2M network, thereby serving as an application node of the M2M system. At this time, the CSE on the intermediate node is called the registration CSE of the AE or the local CSE, and the CSE on the base node is called the remote CSE of the AE.

In practical applications, the AE related resources on the application node need to be registered to the CSE on the application node, and do not need to be registered to the CSE of the intermediate node and the CSE of the basic node. In related technologies, for example, the application on the basic node needs to find an application. When an application is applied to a node, it is necessary to send a request to all intermediate nodes connected to the base node, and the intermediate node forwards the query request to each application node, which not only consumes a large amount of network resources, but also takes a long time.

Summary of the invention

In view of this, the technical problem to be solved by the present invention is to provide a method for original resource notification and corresponding nodes to avoid waste of resources.

In order to solve the above problems, the following technical solutions are adopted:

A method of original resource notification, including:

The local public service entity CSE sends a request for creating an announcement resource to the remote CSE that has not been advertised according to the notification request of the application entity AE to the original resource, and starts a timer;

If the local CSE receives a successful response indicating that the resource creation success is successful, the address of the advertisement resource included in the local CSE is added to the “advertisement to” attribute of the original resource;

If the local CSE receives a response from all remote CSEs before the timer expires, and all of the responses include a successful response, stopping the timer and returning a first response to the AE, the first response Contains the current value of the "advertised to" attribute;

If the local CSE receives a successful response from a partial remote CSE when the timer expires, a second response is returned to the AE, the second response containing the current value of the "advertised to" attribute.

Optionally, if the local CSE receives a response from all remote CSEs before the timer expires, but not all of the responses include a successful response or none of the responses include a successful response, the timing is stopped. Returning the second response to the AE, the second response indicating that the notification fails;

If the timer expires, the local CSE does not receive any response from the remote CSE, or receives a response from some remote CSEs, but not all responses include a successful response or all responses do not include a successful response. Returning the second response to the AE, the second response indicating that the notification failed.

Optionally, the timing duration of the timer is set by the local CSE.

Optionally, the notification request includes a time parameter.

The method further includes the local CSE setting a timing duration of the timer according to a value of the time parameter.

Optionally, the advertisement parameter in the advertisement request includes a list of remote CSE identifiers;

The "advertised to" attribute includes address information of an advertisement resource created by each remote CSE successfully advertised for the original resource, where the address information includes a remote CSE identifier;

Before the step of the local public service entity CSE transmitting an advertisement resource request to the remote CSE that has not been advertised, the local public service entity CSE further includes: the local CSE identifying the remote CSE in the local The remote CSE that exists in the list but does not exist in the "advertised to" attribute is determined to be the remote CSE that is not advertised.

A public service entity CSE, the public service entity CSE includes a request module, a storage module, and a response module, where:

The requesting module is configured to: according to the notification request of the application entity AE registered by the CSE to the original resource, send a request for creating an advertisement resource to the remote CSE that has not been advertised, and start a timer;

The storage module is configured to: save a value of an "advertised to" attribute of the original resource;

The response module is configured to: when receiving a successful response indicating that the advertisement resource is successfully created, add an address of the advertisement resource included in the original resource to the “advertisement to” attribute of the original resource;

If the response of all remote CSEs is received before the timer expires, and all responses include a successful response, stopping the timer and returning a first response to the AE, the first response including The current value of the "advertise to" attribute;

If the timer expires, a successful response is returned from the partial remote CSE, and a second response is returned to the AE, the second response containing the current value of the "advertised to" attribute.

Optionally, the response module is further configured to:

If the response of all remote CSEs is received before the timer expires, but not all responses include a successful response or all responses do not include a successful response, then the timer is stopped, to the AE Returning the second response, the second response indicating that the notification failed;

If the timer expires, no response received by any remote CSE is received, or a response from a remote CSE is received, but not all responses include a successful response or all responses do not include a successful response, then The AE returns the second response, the second response indicating that the notification failed.

Optionally, the CSE further includes a configuration module, where

The configuration module is configured to: set a timing duration of the timer.

Optionally, the configuration module is configured to set a timing duration of the timer as follows:

And setting a timing duration of the timer according to a value of a time parameter carried in the notification request.

Optionally,

The "advertisement to" attribute of the original resource saved by the storage module includes address information of an advertisement resource created by the remote CSE for the original resource, and the address information includes a remote CSE identifier;

The announcement parameter in the notification request includes a list of remote CSE identifiers;

The requesting module is further configured to: identify a remote CSE that exists in the list and that does not exist in the "advertised to" attribute, and determines the remote CSE that is not advertised.

A machine-to-machine M2M node, including any of the above-described public service entities CSE.

A computer program comprising program instructions that, when executed by a public service entity CSE, cause the CSE to perform any of the methods of authenticating the original resource.

A carrier carrying the computer program.

The method for the original resource advertisement and the corresponding node, the local CSE can advertise the original resource on the AE to the remote CSE, and return the notification result to the AE in time to avoid resource waste.

BRIEF abstract

Figure 1 is an architectural diagram of an M2M system;

2 is a flowchart of an original resource notification method according to an embodiment of the present invention; and

3 is a block diagram of an M2M node in accordance with an embodiment of the present invention.

Preferred embodiment of the invention

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

As shown in FIG. 2, the method for the original resource advertisement in this embodiment includes:

Step 110: The local CSE sends an advertisement resource request to the remote CSE that has not been advertised according to the notification request of the application entity AE to the original resource, and starts a timer.

The local CSE is the CSE registered by the AE. The advertisement request sent by the AE carries an advertisement parameter, where the advertisement parameter includes a list of remote CSE identifiers, where the remote CSE identifier is an identifier of the remote CSE that the AE wishes to advertise.

An "advertisement to" attribute of the original resource is saved on the local CSE, and the address information of the advertisement resource created by the remote CSE for the original resource is successfully included, and the address information includes the remote CSE identifier (successfully notified to The identity of the remote CSE). These address information is the value of the "advertise to" attribute.

The local CSE may determine that the remote CSE that is present in the list and that does not exist in the "advertised to" attribute is determined to be the remote CSE that is not advertised.

Preferably, the local CSE can set the timing duration of the timer by itself. Preferably, the notification request further includes a time parameter, and the local CSE sets the timing duration of the timer according to the value of the time parameter.

Step 120: If the local CSE receives a successful response indicating that the resource creation is successful, the local CSE adds the address of the advertisement resource included in the original resource to the “advertised to” attribute of the original resource.

After receiving the request for the advertised resource, the remote CSE creates an advertised resource for the original resource. If the advertised resource is successfully created, the remote CSE returns a successful response indicating that the advertised resource is successfully created. The successful response includes the remote CSE. The address of the advertisement resource created by the original resource is a Uniform Resource Identifier ("URI"). If the CSE receives a successful response from the remote CSE, the original resource is successfully advertised to the remote CSE, and thus the "advertised to" attribute of the original resource needs to be updated.

Step 130: The local CSE returns a corresponding response to the AE according to the response of the received remote CSE.

specifically:

If the local CSE receives a response from all remote CSEs and includes a successful response before the timer expires, stopping the timer and returning a response to the AE, the response including the current value of the "advertised to" attribute;

If the local CSE receives a successful response returned by the partial remote CSE when the timer expires, a response is returned to the AE, the response including the current value of the "advertised to" attribute;

If the local CSE receives a response from all remote CSEs before the timer expires, but the response is not successful, the timer is stopped, and a response is returned to the AE, the response indicating that the notification fails, and the response may also include The current value of the "advertised to" attribute, except that the current value has not changed before the announcement;

If the timer expires, the local CSE does not receive any response from the remote CSE or receives a response from the remote CSE but does not respond successfully, then returns a response to the AE indicating that the notification failed, at this time The response may also contain the current value of the "advertised to" attribute, except that the current value does not change relative to this announcement.

The above process is that when the timer expires, the local CSE has not received a response from a remote CSE, and the advertisement of the remote CSE is considered to have failed.

Correspondingly, the machine-to-machine M2M node provided by this embodiment includes a public service entity CSE, and the public service entity CSE includes:

The requesting module 10 is configured to: according to the notification request of the application entity AE registered by the CSE to the original resource, send a request for creating an announcement resource to the remote CSE that has not been advertised, and start a timer;

The storage module 20 is configured to: save a value of an "announce to" attribute of the original resource;

The response module 30 is configured to: when receiving a successful response indicating that the advertisement resource is successfully created, add an address of the advertisement resource included in the original resource to the “advertisement to” attribute of the original resource, and set it to:

If the local CSE receives a successful response from a partial remote CSE when the timer expires, a response is returned to the AE, the response including the current value of the "advertised to" attribute.

Preferably, the response module 30 is further configured to:

If the local CSE receives a response from all remote CSEs but does not respond successfully before the timer expires, stopping the timer and returning a response to the AE indicating that the advertisement failed or contains the "advertised to" attribute Current value

If the local CSE does not receive any response from the remote CSE or receives a response from the remote CSE but does not respond successfully, the response is returned to the AE, the response indicating that the notification failed or contains the The current value of the "advertise to" attribute.

Preferably,

The M2M node further includes: a configuration module, configured to: set a timing duration of the timer, or set a timing duration of the timer according to a value of a time parameter carried in the notification request.

Preferably,

The requesting module sends a request to create an announcement resource to the remote CSE that has not been advertised according to the notification request for the original resource, where the notification parameter in the notification request includes a list of remote CSE identifiers, and the request module will remote CSE A remote CSE that is identified in the list but does not exist in the "advertised to" attribute is determined to be the remote CSE that is not advertised.

Here is an example to illustrate:

The application entity AE1 sends an advertisement request to the local CSE, requesting to advertise the resource "Resource-AE1" to the designated remote CSE, the notification request includes:

Notification parameters: This parameter contains a list of one or more remote CSE identifiers, for example:

{

CSE1,

CSE2,

CSE3,

CSE4,

CSE5

}

The notification request may also include a time parameter.

The original resource "Resource-AE1" on the local CSE contains the attribute "advertised to", and the "advertised to" attribute is used to store the address information of the announcement resource created by the remote CSE successfully advertised for the original resource "Resource-AE1" (at the remote). The address on the CSE).

In this example, the value of the Announce To property of the original resource "Resource-AE1" is as follows:

Notice to

{

URI1: CSE1-ID.m2mserviceprovider.com\Rsource-AE1-Annc (address of the resource advertised to CSE1),

URI2: CSE2-ID.m2mserviceprovider.com\Rsource-AE1-Annc (address of the resource advertised to CSE2)

};

In this example, the "CSE-ID" field is the "CSE1-ID" in the above URI1 and the "CSE2-ID" in the URI2, and the remote CSE identifier, that is, the identifier of the remote CSE1 and the identifier of the remote CSE2, are stored.

After receiving the notification request of the AE1, the local CSE reads the list of remote CSE identifiers included in the advertisement parameter, and checks whether the attribute "advertisement to" of the local resource "Resource-AE1" contains the remote CSE identifier in the list, that is, the list is The remote CSE identifier is compared with the "cse-id" field of the URI in the attribute "advertised to" to see if the same value exists.

The remote CSE identifier that is not included in the attribute "advertised to" is the remote CSE that has not been successfully advertised. The local CSE sends a request to create an advertisement resource to the remote CSE, where the creation advertisement resource request includes: the original resource "Resource- The URI of AE1"; and the search tag of the original resource "Resource-AE1".

The local CSE starts the timer T1 after sending the advertised resource request message. If the request message sent by the AE to the local CSE includes a time parameter, the value of T1 is set to the value of the time parameter, if the AE is sent to the local CSE. If the time parameter is not included in the request message, the local CSE sets the value of T1 by itself, for example, according to the default value set locally;

After receiving the advertised resource request message, the remote CSE can verify whether the local CSE that sends the advertised resource request has the corresponding privilege. If the verification succeeds, the advertised resource "Resource-AE1-Annc" is created for the original resource "Resource-AE1". Set the attributes "original resource link" and "tag" for the resource, and save the received URI of the original resource "Resource-AE1" as the value of the attribute "original resource link", and the original resource "Resource-AE1" will be received. The search tag is saved as the value of the attribute "tag";

After the remote CSE creates the advertisement resource successfully, it returns a success response indicating that the advertisement resource is successfully created to the local CSE. The success response includes the URI of the resource “Resource-AE1-Annc” on the remote CSE; if the remote CSE fails to create the advertisement resource, A failure response is returned to the local CSE.

After receiving the successful response before T1 expires, the local CSE updates the "advertisement to" attribute of the resource "Resource-AE1", and adds the URI of the advertisement resource "Resource-AE1-Annc" included in the response message to the resource "Resource". -AE1" in the "Notification to" attribute. For a remote CSE whose T1 has not received its successful response, the local CSE determines that the notification to the remote CSE has failed.

If the local CSE receives a response from all remote CSEs and contains a successful response before T1 expires, the timer T1 is stopped and a response is sent to the AE, the response including the current value of the "advertised to" attribute;

If the local CSE receives all the responses of the remote CSE but does not respond successfully before T1 expires, the timer T1 is stopped, and a response is sent to the AE, indicating that the notification fails;

If the local CSE receives a successful response from a portion of the remote CSE when T1 expires, a response is sent to the AE, the response including the current value of the "advertised to" attribute;

If, at time T1, the local CSE does not receive any response from the remote CSE or receives a response from a portion of the remote CSE but does not respond successfully, a response is sent to the AE indicating that the notification failed.

The embodiment of the invention further discloses a computer program, comprising program instructions, when the program instruction is executed by the public service entity CSE, so that the CSE can perform the method of any of the foregoing original resource notifications.

The embodiment of the invention also discloses a carrier carrying the computer program.

One of ordinary skill in the art will appreciate that all or a portion of the steps described above can be accomplished by a program that instructs the associated hardware, such as a read-only memory, a magnetic or optical disk, and the like. Optionally, all or part of the steps of the foregoing embodiments may also be implemented by using one or more integrated circuits. Accordingly, each module/unit in the foregoing embodiment may be implemented in the form of hardware, or may be implemented by using a software function module. Formal realization. The invention is not limited to any specific form of combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

The method for the original resource advertisement and the corresponding node, the local CSE can advertise the original resource on the AE to the remote CSE, and return the notification result to the AE in time to avoid resource waste. Therefore, the present invention has strong industrial applicability.

Claims

A method of original resource notification, including:

The local public service entity CSE sends a request for creating an announcement resource to the remote CSE that has not been advertised according to the notification request of the application entity AE to the original resource, and starts a timer;

If the local CSE receives a successful response indicating that the resource creation success is successful, the address of the advertisement resource included in the local CSE is added to the “advertisement to” attribute of the original resource;

If the local CSE receives a response from all remote CSEs before the timer expires, and all of the responses include a successful response, stopping the timer and returning a first response to the AE, the first response Contains the current value of the "advertised to" attribute;

If the local CSE receives a successful response from a partial remote CSE when the timer expires, a second response is returned to the AE, the second response containing the current value of the "advertised to" attribute.
The method of claim 1 of claim 1 wherein:

If the local CSE receives a response from all remote CSEs before the timer expires, but not all responses include a successful response or all responses do not include a successful response, then the timer is stopped. Said AE returns said second response, said second response indicating that the notification failed;

If the timer expires, the local CSE does not receive any response from the remote CSE, or receives a response from some remote CSEs, but not all responses include a successful response or all responses do not include a successful response. Returning the second response to the AE, the second response indicating that the notification failed.
A method of original resource notification according to claim 1 or 2, wherein:

The timer duration of the timer is set by the local CSE.
A method of original resource notification according to claim 1 or 2, wherein:

The notification request includes a time parameter,

The method further includes the local CSE setting a timing duration of the timer according to a value of the time parameter.
A method of original resource notification according to claim 1 or 2, wherein:

The announcement parameter in the notification request includes a list of remote CSE identifiers;

The "advertised to" attribute includes address information of an advertisement resource created by each remote CSE successfully advertised for the original resource, where the address information includes a remote CSE identifier;

Before the step of the local public service entity CSE transmitting an advertisement resource request to the remote CSE that has not been advertised, the local public service entity CSE further includes: the local CSE identifying the remote CSE in the local The remote CSE that exists in the list but does not exist in the "advertised to" attribute is determined to be the remote CSE that is not advertised.
A public service entity CSE, the public service entity CSE includes a request module, a storage module, and a response module, where:

The requesting module is configured to: according to the notification request of the application entity AE registered by the CSE to the original resource, send a request for creating an advertisement resource to the remote CSE that has not been advertised, and start a timer;

The storage module is configured to: save a value of an "advertised to" attribute of the original resource;

The response module is configured to: when receiving a successful response indicating that the advertisement resource is successfully created, add an address of the advertisement resource included in the original resource to the “advertisement to” attribute of the original resource;

If the response of all remote CSEs is received before the timer expires, and all responses include a successful response, stopping the timer and returning a first response to the AE, the first response including The current value of the "advertise to" attribute;

If the timer expires, a successful response is returned from the partial remote CSE, and a second response is returned to the AE, the second response containing the current value of the "advertised to" attribute.
The CSE of claim 5 wherein said response module is further configured to:

If the response of all remote CSEs is received before the timer expires, but not all responses include a successful response or all responses do not include a successful response, then the timer is stopped, to the AE Returning the second response, the second response indicating that the notification failed;

If the timer expires, no response received by any remote CSE is received, or a response from a remote CSE is received, but not all responses include a successful response or all responses. None of the successful responses are included, and the second response is returned to the AE, the second response indicating that the notification failed.
The CSE of claim 6 or 7, the CSE further comprising a configuration module, wherein

The configuration module is configured to: set a timing duration of the timer.
The CSE of claim 8 wherein said configuration module is configured to set a timing duration of said timer as follows:

And setting a timing duration of the timer according to a value of a time parameter carried in the notification request.
The CSE of claim 6 or 7, wherein:

The "advertisement to" attribute of the original resource saved by the storage module includes address information of an advertisement resource created by the remote CSE for the original resource, and the address information includes a remote CSE identifier;

The announcement parameter in the notification request includes a list of remote CSE identifiers;

The requesting module is further configured to: identify a remote CSE that exists in the list and that does not exist in the "advertised to" attribute, and determines the remote CSE that is not advertised.
A machine-to-machine M2M node comprising a public service entity CSE as claimed in any one of claims 6-10.
A computer program comprising program instructions that, when executed by a public service entity CSE, cause the CSE to perform the method of authenticating resource information as claimed in any one of claims 1-5.
A carrier carrying a computer program as claimed in claim 12.