WO2015154459A1

WO2015154459A1 - Notification method and device for change of subscribed resource

Info

Publication number: WO2015154459A1
Application number: PCT/CN2014/091044
Authority: WO
Inventors: 谢芳; 卢忱; 吴昊
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-07-14
Filing date: 2014-11-13
Publication date: 2015-10-15
Also published as: CN105323743A

Abstract

Provided are a notification method and device for the change of a subscribed resource. The method comprises: detecting whether a subscribed resource and/or a sub-resource of the subscribed resource are/is changed; and when the subscribed resource and/or the sub-resource are/is changed, according to an effective subscription range of a subscriber of the subscribed resource, sending a notification message to the subscriber, wherein the effective subscription range comprises the subscribed resource and/or the sub-resource. By means of the present invention, the problem in the related art that if a plurality of sub-resources are nested below one resource and the subscriber needs to acquire notification messages of the changes of all resources and sub-resources thereof, a CSE where the subscribed resources are located consumes a large number of storage resources due to the fact that subscribed resources need to be created for sub-resources of each resource is solved, thereby saving storage resources.

Description

Method and device for subscribing to resource change notification

Technical field

The present invention relates to the field of communications, and in particular, to a method and apparatus for subscribing to resource change notifications.

Background technique

The Internet of Things (M2M) communication network consists 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 or one public service entity. The application entity is a logical unit that executes an actual M2M application, and the public service entity is a logical unit that manages and services the application.

In the M2M system architecture, the application node is the end execution node, such as a smart meter, a temperature measurement and control sensor, a fire alarm, a smart home appliance, etc., and the intermediate node is a middleware that connects the end execution node to the network side server, such as a gateway, and a base. The node is a server on the network side, and the application entity registered on the base node is usually a management software or management platform of the M2M service provider.

The communication between the M2M applications is realized through the interaction between the public service entity service environment CAMEL (Camel Service Environment referred to as CSE), and the premise of the communication is that the M2M application first needs to be registered in the local CSE, and FIG. 1 is according to the related technology. In the M2M system architecture diagram, as shown in Figure 1, the application entity on the application node needs to register the CSE on the intermediate node, then the CSE on the intermediate node is the local CSE of the application entity on the application node, and then can communicate through the CSE. The interaction of the M2M application is implemented, as shown in the related art in the related art M2M system architecture diagram.

The application node is a physical entity, and the application entity AE is a logical unit, which is a logical unit that actually executes an application on the physical entity of the application node.

When the application entity is registered on the local CSE, the application entity needs to provide a security certificate that can identify its own legality and provide it to the local CSE for authentication. Only the authentication can be registered in the local CSE, and the application entity also needs to provide the application entity recommendation. Register the name for the local CSE reference.

The registered application entity AE can also create an application-related resource on the local CSE as a sub-resource of the application resource. For example, the local CSE creates a resource “application” after the AE is registered, and the application can also be applied to the resource in order to save the application data. "Create a resource "container" under which the resource "container" is used to store AE-related data. The AE can subscribe to the message of whether a resource has changed. The resource being subscribed to is in the attribute or sub When the resource is changed, for example, the value of the attribute is modified, the sub-resource is deleted, or the sub-resource is newly created, and the CSE where the resource is located may send a notification message to the AE to inform that the resource of interest is modified. The subscription to the resource is implemented by the AE creating a sub-resource of type "subscriPN24145tion" under the resource that the CSE wants to subscribe to.

In the prior art, in order to prevent the subscriber from receiving a large number of notification messages, the subscription is only valid for the current resource, and when the attribute of the sub-resource of the sub-resource is modified, or the sub-resource of the sub-resource is deleted or created. , no notification message will be sent.

Under the prior art mechanism, if multiple multiple sub-resources are nested under one resource, and the subscribing party needs to obtain the change notification message of all resources and their sub-resources, it is necessary to create a sub-resource for each resource. Subscribing to resources, resulting in the CSE where the resources are located consumes a large amount of storage resources.

Summary of the invention

The present invention provides a method and an apparatus for subscribing to a resource change notification, so as to at least solve the related art, if a plurality of sub-resources are nested under one resource, and the subscriber needs to obtain a change notification message of all resources and sub-resources thereof, Each resource's sub-resource creates a subscription resource, which causes the CSE where the resource is located to consume a large amount of storage resources.

According to an aspect of the present invention, a method for subscribing to a resource change notification includes: detecting whether a sub-resource of a subscribed resource and/or the subscribed resource changes; when the subscribed resource and/or the When the child resource sends a change, the notification message is sent to the subscriber according to the subscription validity range of the subscriber of the subscribed resource, where the subscription valid scope includes: the subscribed resource and/or the child resource.

Further, sending a notification message to the subscribing party according to a subscription valid range of the subscribing resource of the subscribed resource, including at least one of: when the subscription valid range is the subscribed resource, in the subscribed Sending the notification message to the subscriber when the resource changes; when the subscription validity range is the sub-resource, sending the notification message to the sub-subscribe when the sub-resource changes; When the subscription valid range is the subscribed resource and the sub-resource, when the subscribed resource and/or the sub-resource change, the notification message is sent to the subscribing party.

Further, the notification message carries indication information indicating that the changed subscription resource is the subscribed resource and/or the sub-resource.

Further, detecting whether the subscribed resource and/or the sub-resource of the subscribed resource changes, including at least one of: detecting whether the attribute of the sub-resource and/or the sub-resource of the subscribed resource is changed; detecting Whether the subscribing resource and/or the sub-resource of the subscribed resource is deleted; whether the subscribed resource and/or the sub-resource of the subscribed resource create a new sub-resource.

Further, before detecting whether the subscribed resource and/or the sub-resource of the subscribed resource is changed, the method further includes: receiving a request message for creating a subscription resource sent by the subscribing party, where the request message carries the The subscription valid range of the subscription resource; setting the subscription validity range carried in the request message to the subscriber's subscription valid range.

Further, the subscribed resource and the sub-resource are M2M application resources.

According to another aspect of the present invention, an apparatus for subscribing to a resource change notification includes: a detecting module configured to detect whether a sub-resource of a subscribed resource and/or the subscribed resource changes; a sending module, configured to When the subscribed resource and/or the sub-resource sends a change, sending a notification message to the subscribing party according to a subscription valid range of the subscribing party of the subscribed resource, where the subscription valid range includes: Subscribed to resources and/or the sub-resources.

Further, the sending module includes: a first sending unit, configured to send the notification to the subscribing party when the subscribed resource changes, when the subscription valid range is the subscribed resource a second sending unit, configured to send the notification message to the subscribing party when the sub-resource changes when the sub-resource is changed, and the third sending unit is configured to be When the subscription valid range is the subscribed resource and the sub-resource, when the subscribed resource and/or the sub-resource change, the notification message is sent to the subscribing party; wherein the notification The message carries the indication information indicating that the changed subscription resource is the subscribed resource and/or the sub-resource.

Further, the detecting module includes: a first detecting unit, configured to detect whether the attribute of the subscribed resource and/or the sub-resource of the subscribed resource is changed; and the second detecting unit is configured to detect the subscribed resource and/or Whether the sub-resource of the subscribed resource is deleted; the third detecting unit is configured to be a sub-resource and/or a sub-resource of the sub-resource to create a new sub-resource.

Further, the method further includes: a receiving module, configured to receive a request message for creating a subscription resource sent by the subscriber, where the request message carries a subscription valid range of the subscription resource; and a setting module is configured to: The subscription validity range carried in the request message is set to the subscription valid range of the subscriber.

The embodiment of the present invention adopts a manner of sending a notification message to a subscribing party according to a subscription effective range of a subscriber of the subscribed resource when the subscription resource and/or the sub-resource change is sent, wherein the subscription valid scope includes: the subscribed resource And/or a sub-resource, that is, selecting a valid range of sending a notification message according to a valid range of the subscription resource, thereby eliminating the need to send a notification message for each subscribing resource, and solving the related art if a resource is under When a plurality of sub-resources are nested and the subscriber needs to obtain the change notification message of all the resources and their sub-resources, a sub-resource is created for each sub-resource of each resource, and the CSE where the sub-resource is located consumes a large amount of storage resources. The problem saves storage resources.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a structural diagram of an M2M system according to the related art;

2 is a flowchart of a method for subscribing to a resource change notification according to an embodiment of the present invention;

FIG. 3 is a structural block diagram of a subscription resource change notification apparatus according to an embodiment of the present invention; FIG.

4 is a block diagram 1 of an optional structure of a subscription resource change notification device according to an embodiment of the present invention;

FIG. 5 is a block diagram 2 of an optional structure of a subscription resource change notification apparatus according to an embodiment of the present invention; FIG.

FIG. 6 is a block diagram 3 of an optional structure of a subscription resource change notification apparatus according to an embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

In this embodiment, a method for subscribing to a resource change notification is provided. FIG. 2 is a flowchart of a method for subscribing to a resource change notification according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps:

Step S202: detecting whether the sub-resource of the subscribed resource and/or the subscribed resource changes;

Step S204: When the subscription resource and/or the sub-resource change is sent, the notification message is sent to the subscribing party according to the subscription valid range of the subscribing resource of the subscribed resource, where the subscription valid scope includes: the subscribed resource and/or the subscribed resource. Child resources.

Through the above steps, the manner in which the notification message is sent to the subscriber according to the subscription validity range of the subscriber of the subscribed resource is adopted, wherein the subscription effective scope includes: the manner of being subscribed to the resource and/or the sub-resource, and solving one of the related technologies. Multiple sub-resources are nested under the resource, and the subscriber needs to get all the resources and their sub-resources. When the notification message is changed, a subscription resource needs to be created for each resource of the resource, and the CSE where the subscription resource is located consumes a large amount of storage resources, thereby saving storage resources.

Optionally, the notification message is sent to the subscriber according to the subscription validity range of the subscriber of the subscribed resource, including at least one of the following: when the subscription valid scope is the subscribed resource, to the subscriber when the subscribed resource changes Sending a notification message; when the subscription valid range is a child resource, sending a notification message to the subscriber when the child resource changes; when the subscription validity range is the subscribed resource and the child resource, when the subscribed resource and/or the child resource changes , send a notification message to the subscriber.

Optionally, the notification message carries the indication information that the subscription resource that is changed is the subscribed resource and/or the sub-resource.

Optionally, detecting whether the sub-resource of the subscribed resource and/or the subscribed resource changes, including at least one of: detecting whether the attribute of the sub-resource and/or the sub-resource of the subscribed resource is changed; detecting Whether the subscribed resource and/or the sub-resource of the subscribed resource is deleted; whether the subscribed resource and/or the sub-resource of the subscribed resource create a new sub-resource.

Optionally, before detecting whether the sub-resource of the subscribed resource and/or the subscribed resource is changed, the method further includes: receiving a request message for creating a subscription resource sent by the subscribing party, where the request message carries a subscription valid range of the subscription resource; Set the subscription validity range carried in the request message to the subscriber's subscription validity range.

Optionally, the subscribed resource and the sub-resource are M2M application resources.

In the embodiment, a device for subscribing to the resource change notification is provided, and the device is used to implement the foregoing embodiment and the optional implementation manner, and details are not described herein. As used below, the term "module" can implement software for a predetermined function.

FIG. 3 is a structural block diagram of a subscription resource change notification apparatus according to an embodiment of the present invention. As shown in FIG. 3, the apparatus includes: a detection module 32 configured to detect whether a sub-resource of a subscribed resource and/or a subscribed resource changes. The sending module 34 is coupled to the detecting module 32, and is configured to send a notification message to the subscriber according to the subscription valid range of the subscriber of the subscribed resource when the subscription resource and/or the sub-resource is changed, wherein the subscription valid range includes : Subscribed to resources and/or sub-resources.

FIG. 4 is a block diagram of an optional structure of a subscription resource change notification apparatus according to an embodiment of the present invention. As shown in FIG. 4, the sending module 34 includes: a first sending unit 42 configured to: when the subscription valid range is a subscribed resource, Sending a notification message to the subscribing party when the subscribed resource is changed; the second sending unit 44 is coupled to the first sending unit 42 and is configured to be configured to the subscribing party when the sub-resource changes when the subscription valid range is a sub-resource Sending a notification message; the third sending unit 46 is coupled to the second sending unit 44, and is configured to send a notification to the subscriber when the subscribed resource and/or the sub-resource change when the subscription valid range is the subscribed resource and the sub-resource a message; wherein the notification message carries indication information indicating that the changed subscription resource is a subscribed resource and/or a sub-resource.

FIG. 5 is a block diagram 2 of an optional structure of a subscription resource change notification apparatus according to an embodiment of the present invention. As shown in FIG. 5, the detection module 32 includes: a first detection unit 52 configured to detect a subscribed resource and/or a subscribed resource. Whether the attribute of the sub-resource is changed; the second detecting unit 54 is coupled to the first detecting unit 52, and is configured to detect whether the sub-resource of the subscribed resource and/or the subscribed resource is deleted; the third detecting unit 56 and the second detecting Unit 54 is coupled to set up to be a sub-resource that is subscribed to the resource and/or sub-resourced to create a new sub-resource.

FIG. 6 is a block diagram 3 of an optional structure of a device for subscribing to a resource change notification according to an embodiment of the present invention. As shown in FIG. 6, the device includes: a receiving module 62, configured to receive a subscriber, in addition to the module of FIG. a request message for creating a subscription resource, wherein the request message carries a subscription validity range of the subscription resource; the setting module 64 is coupled to the receiving module 62, and is configured to set the subscription validity range carried in the request message to the subscription validity range of the subscriber. .

The embodiments of the present invention are described below in conjunction with alternative embodiments.

An optional embodiment of the present invention provides a notification method for subscribing to a resource change, so that the subscriber can specify a valid range of the subscription resource, thereby implementing a beneficial effect of reducing resource creation and saving storage space for the above scenario.

The method of an alternative embodiment of the present invention includes:

Step S302: The subscription initiator sends a request to create a subscription resource to the CSE. The request to create a subscription resource includes the following parameters and their values: the address of the subscribed resource, the valid range of the subscription: the value of the subscription valid range is “global” or “local”, And the notification sending address;

Step S304: After verifying that the request originator has the right to create a subscription resource, the CSE creates a sub-resource under the sub-subscribed resource: subscribes to the resource, and creates an attribute “subscription valid range” for the subscription resource, and the value is set to create a subscription resource request. The value of the parameter subscription valid range, and the attribute "notification sending address" is created for the subscription resource, and the value is set to the value of the notification sending address in the subscription resource request;

Step S306: If the value of the attribute "subscription valid range" is "global", when the attribute value of the subscribed resource is changed, or the sub-resource of the subscribed resource is deleted, or the sub-resource is created by the subscribed resource, or is subscribed The attribute value of each level of the resource of the resource is changed, or the child resource of each level of the sub-resource of the subscribed resource is deleted, or When each sub-resource of the subscribed resource creates a new sub-resource, the CSE sends a notification message to the destination address in the attribute "Notification Send Address".

Step S308: If the value of the attribute "subscription valid range" is "local", when the attribute value of the subscribed resource is changed, or the sub-resource of the subscribed resource is deleted, or the sub-resource is created by the sub-resource, the CSE sends The notification message goes to the destination address in the attribute "Notification Send Address".

Alternative embodiment 1:

Step S402: The application entity AE sends a create resource request, requesting to create an application resource on the CSE;

Step S404: The CSE creates a resource "application";

Step S406: The AE sends a create resource request, and requests to create a container resource under the resource “application” on the CSE;

Step S408: The CSE creates a sub-resource "container" under the resource "application";

Step S410: The AE sends a create resource request, and requests to create an instance resource under the resource “container” on the CSE.

Step S412: The CSE creates a sub-resource "instance" under the resource "container";

Step S414: The AE, as a subscription initiator, sends a request for creating a resource, requesting to create a subscription resource on the CSE, where the request includes: (1) resource type: subscription; (2) subscribed resource address: \\CSE\application; (3) ) Subscription valid range: global (4) notification sending address: " \\AE1 ";

Step S416: According to the subscribed resource address in the request, the CSE creates a subscription type resource “Subscription 1” under the resource “Apply”, and sets a property “Subscription Validity Range” for the resource “Subscription”, and the value is set to “global”. Set the attribute "notification sending address" for the resource "subscription", and its value is set to "\\AE1";

Step S418: When the resource "application", or the resource "container", or the attribute value of the resource "instance" is changed, or its sub-resource is deleted, or when a new sub-resource is created, the CSE sends a notification message to the attribute "notification". The destination address in the "send address".

Alternative embodiment 2:

Step S502: The application entity AE sends a create resource request, requesting to create an application resource on the CSE;

Step S504: The CSE creates a resource "application";

Step S506: The AE sends a create resource request, and requests to create a container resource under the resource “application” on the CSE;

Step S508: The CSE creates a sub-resource "container" under the resource "application";

Step S510: The AE sends a create resource request, requesting to create an instance resource under the resource “container” on the CSE;

Step S512: The CSE creates a sub-resource "instance" under the resource "container";

Step S514: The AE, as a subscription initiator, sends a create resource request, requesting to create a subscription resource on the CSE, where the request includes: (1) resource type: subscription; (2) subscribed resource address: \\CSE\application; (3) ) Subscription valid range: local (4) notification sending address: \\AE1;

Step S516: According to the subscribed resource address in the request, the CSE creates a subscription type resource “Subscription 1” under the resource “Apply”, and sets a property “Subscription Validity Range” for the resource “Subscription”, and the value is set to “local”. Set the property "Notification Send Address" for the resource "Subscription" with the value set to " \\AE1 ".

Step S518: When the attribute value of the resource "application" is changed, or its sub-resource is deleted, or when a new sub-resource is created, the CSE sends a notification message to the target address in the attribute "notification sending address".

The CSE does not send a notification message when the attribute values of the resource "container" and the resource "instance" change, or their child resources are deleted, or when a new child resource is created.

The notification message is sent to the subscriber by using the steps of the foregoing optional embodiment, and the notification message is sent to the subscriber when the subscription validity range is global, and the notification message is sent when the subscription resource and its sub-resources are changed. To the subscriber; when the subscription valid range is local, the notification message is sent to the subscriber only when the subscription sub-resource is changed. Through the above steps, the subscriber can select the effective range of the subscription resource according to the need, thereby reducing the subscription resource creation and saving the storage space.

Industrial applicability

The embodiment of the present invention adopts a manner of sending a notification message to a subscribing party according to a subscription effective range of a subscriber of the subscribed resource when the subscription resource and/or the sub-resource change is sent, wherein the subscription valid scope includes: the subscribed resource And/or the sub-resources, that is, the effective range of sending the notification message is selected according to the valid range of the subscription resource, so that the method for sending the notification message for each sub-resource is not needed, and the related technology is configured to nest multiple sub-resources under one resource. And when the subscriber needs to get the change notification message for all resources and their sub-resources, A subscription resource is created for each resource's child resources, and the CSE where the subscription resource is located consumes a large amount of storage resources, thereby saving storage resources.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only an alternative 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.

Claims

A method of subscribing to resource change notifications, including:

Detecting whether the subscribed resource and/or the sub-resource of the subscribed resource changes;

When the subscribed resource and/or the sub-resource sends a change, sending a notification message to the subscribing party according to a subscription valid range of the subscribing party of the subscribed resource, where the subscription valid range includes: Subscribed to resources and/or the sub-resources.
The method of claim 1, wherein the notification message is sent to the subscriber according to a subscription validity range of the subscriber of the subscribed resource, including at least one of the following:

When the subscription valid range is the subscribed resource, sending the notification message to the subscribing party if the subscribed resource changes;

When the subscription valid range is the sub-resource, sending the notification message to the subscribing party when the sub-resource changes;

And when the subscription valid range is the subscribed resource and the sub-resource, when the subscribed resource and/or the sub-resource change, the notification message is sent to the subscribing party.
The method according to claim 2, wherein the notification message carries indication information indicating that the changed subscription resource is the subscribed resource and/or the sub-resource.
The method of claim 1, wherein detecting whether the subscribed resource and/or the sub-resource of the subscribed resource has changed comprises at least one of:

Detecting whether the attribute of the subscribed resource and/or the sub-resource of the subscribed resource is changed;

Detecting whether the subscribed resource and/or the sub-resource of the subscribed resource is deleted;

Whether the subscribed resource and/or the sub-resource of the subscribed resource creates a new sub-resource.
The method of claim 1, wherein before detecting whether the subscribed resource and/or the sub-resource of the subscribed resource changes, the method further comprises:

Receiving a request message for creating a subscription resource sent by the subscriber, where the request message carries a subscription valid range of the subscription resource;

Setting a subscription validity range carried in the request message to a subscription valid range of the subscriber.
The method of claim 4, wherein the subscribed resource and the sub-resource are M2M application resources.
A device for subscribing to resource change notifications, including:

a detecting module, configured to detect whether a sub-resource of the subscribed resource and/or the subscribed resource changes;

a sending module, configured to send a notification message to the subscriber according to a subscription validity range of the subscriber of the subscribed resource, when the subscribed resource and/or the sub-resource sends a change, where the subscription is valid The scope includes: the subscribed resource and/or the sub-resource.
The apparatus of claim 7 wherein said transmitting module comprises

a first sending unit, configured to: when the subscription valid range is the subscribed resource, send the notification message to the subscribing party if the subscribed resource changes;

a second sending unit, configured to send the notification message to the subscribing party when the sub-resource changes when the subscription valid range is the sub-resource;

a third sending unit, configured to: when the subscription valid range is the subscribed resource and the sub-resource, send the location to the sub-subscribe when the subscribed resource and/or the sub-resource change Notification message

The notification message carries indication information indicating that the changed subscription resource is the subscribed resource and/or the sub-resource.
The apparatus of claim 7 wherein said detecting module comprises:

a first detecting unit, configured to detect whether the attribute of the subscribed resource and/or the sub-resource of the subscribed resource is changed;

a second detecting unit, configured to detect whether the subscribed resource and/or the sub-resource of the subscribed resource is deleted;

The third detecting unit is configured to be a sub-resource and/or a sub-resource of the subscribed resource to create a new sub-resource.
The apparatus according to claim 7, further comprising:

a receiving module, configured to receive a request message for creating a subscription resource sent by the subscriber, where the request message carries a subscription valid range of the subscription resource;

And a setting module, configured to set a subscription validity range carried in the request message to a subscription valid range of the subscriber.