Method For Device Capability Negotiation, Method, System And Device For Synchronization

• US 20090144434A1
• Filed: 09/30/2008
• Published: 06/04/2009
• Est. Priority Date: 03/30/2006
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Tian, Linyi, Kang, Jiao, Guo, Xiangzhou
• Granted Patent: US 8,051,186 B2
• Time in Patent Office: Days
• US Class Current: 709/228
• CPC Class Codes: H04L 41/00 Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
• CPC Class Codes: H04L 41/0213 Standardised network management protocols, e.g. simple network management protocol [SNMP]
• CPC Class Codes: H04L 41/12 Discovery or management of network topologies
• CPC Class Codes: H04L 67/1095 Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
• CPC Class Codes: H04L 69/24 Negotiation of communication capabilities

Abstract

Method for device capability negotiation, and method, system and device for synchronization. The synchronization system includes a synchronization server and a synchronization client. The synchronization server or the synchronization client is adapted to skip the device capability negotiation and directly perform a synchronization with the synchronization server and the synchronization client when the negotiated device capability or status ID, or the status ID indicating that the device capability has not been changed and has been stored. The method for device capability negotiation includes receiving an operation request carrying a parameter requesting a device capability negotiation; determining that the session is a device capability negotiation session according to the parameter requesting the device capability negotiation, carried by the request; returning a response and performing the device capability negotiation; storing results of the device capability negotiation. Embodiments of the present invention can improve the synchronization efficiency.

Claims

1. A method for synchronization comprising:

receiving, by a first device, a request for data synchronization from a second device;

skipping a device capability negotiation and performing a synchronization operation when the negotiated device capability has not been changed or has been stored after a previous device capability negotiation.

2. The method of claim 1, further comprising:

returning, by the first device, to the second device a response requesting performing a device capability negotiation when the negotiated device capability, or a status ID indicating that the device capability has been changed, is determined have not been stored.

3. The method of claim 2, wherein the performing a device capability negotiation comprises:

performing a device capability negotiation via a device capability operation session or a device management (DM) protocol.

4. A method for device capability negotiation, comprising:

receiving an operation request, the operation request carries a parameter requesting a device capability negotiation;

determining that a session is a device capability negotiation session according to the parameter requesting a device capability negotiation, carried by the operation request;

returning a response and performing the device capability negotiation; and

storing results of the device capability negotiation.

5. The method of claim 4, wherein the receiving the operation request comprises receiving the operation request through a device capability operation session.

6. The method of claim 5, wherein:

the parameter requesting a device capability negotiation is;

a data type indicative of negotiating all of the device capability, a data type carrying the information of negotiating the associated device capability, a URI specifying the device capability to be negotiated, or an expression specifying the device capability to be negotiated; and

the performing the device capability negotiation refers to performing negotiation according to the parameter.

7. The method of claim 6, wherein the operation request includes add, update, delete or query commands, and when the parameter is the URI specifying the device capability to be negotiated, the manner used for a device capability negotiation comprises:

acquiring the device capability via operation commands of XCAP protocol according to the URI.

8. The method of claim 4, wherein:

the initiating the device management procedure, sending the operation request and informing the DM server to acquire the client device capability comprise;

reading data to which a configured synchronization management object of a synchronization client corresponds and acquiring device capability of a synchronization client to be reported;

sending a request for initial session connection to the DM server and carrying the synchronization client device capability in the request for initial session connection;

or

initiating a request for initial session connection to the DM server and carrying in the request for initial session connection a client synchronization management object identifier requiring the DM server to acquire;

issuing an operation command, by the DM server, according to the received client synchronization management object identifier;

reading data to which the configured client synchronization management object corresponds according to the operation command and acquiring the client device capability to be reported;

sending response information to the request for initial session connection to the DM server and carrying the client device capability in the response information.

9. The method of claim 4, further comprising:

configuring a status ID indicating that the a device capability negotiation is no longer needed when the device capability has not been changed or has been stored.

10. A system for synchronization, comprising a synchronization server and a synchronization client, wherein the synchronization server or synchronization client is adapted to skip a device capability negotiation and directly perform a synchronization operation with the synchronization server and the synchronization client when the negotiated device capability has not been changed or has been stored.

11. The system of claim 10, wherein the synchronization server further comprises:

a receiving unit adapted to receive a request for a device capability negotiation from the synchronization client; and

a negotiation unit adapted to perform the device capability negotiation, before the synchronization, and after receiving the request for a device capability negotiation and returning response information.

12. A device for synchronization, comprising:

a configuration unit adapted to store negotiated device capability, or a status ID indicating that the device capability has not been changed; and

a synchronization-triggering unit adapted to skip the device capability negotiation process and directly trigger a synchronization operation when the negotiated device capability has not been changed or has been stored.

13. A server for synchronization, comprising:

a request receiving unit adapted to receive in a session an operation request carrying a parameter requesting a device capability negotiation;

a session type determination unit adapted to determine that the session is a device capability negotiation session according to the parameter requesting the device capability negotiation, carried by the operation request;

a negotiation unit adapted to perform the device capability negotiation after the session is determined to be a device capability negotiation session; and

a session control unit adapted to store the results of the device capability negotiation.

14. The server of claim 13, further comprising a status register and a negotiation control unit, wherein

the status register is adapted to store information indicating whether or not to perform a device capability negotiation;

the negotiation control unit is adapted to control the negotiation unit to perform or not perform the device capability negotiation according to the information indicating whether or not to perform the device capability negotiation.

15. A server, comprising:

a request receiving unit adapted to receive in a session an operation request carrying a parameter requesting a device capability negotiation, wherein the parameter carries information for acquiring the device capability of the server;

a session type determination unit adapted to determine that the session is a device capability negotiation session according to the parameter requesting the device capability negotiation, carried by the operation request; and

a negotiation unit adapted to deliver device capability down to a synchronization client after the session is determined to be a device capability negotiation session and inform the synchronization client to store the results of the device capability negotiation.

16. A system for synchronization, comprising:

a synchronization server, a synchronization client, a DM client and a DM server, wherein

the synchronization client is adapted to interact with the synchronization server to complete a data synchronization operation and store the data of synchronization client;

or, adapted to send a request for a device capability negotiation to the DM client, or receive the device capability of the synchronization server from the DM client, or perform authentication with the DM client;

the DM client is adapted to acquire, from a defined DM management tree, a client synchronization management object for storing the client device capability and send to the DM server an operation request carrying a request requesting a device capability negotiation;

or, send to the synchronization client the synchronization server device capability from the DM server or synchronization server device capability in a server synchronization management object;

the DM server is adapted to send to the synchronization server a client device capability in the client synchronization management object from the DM client;

or, adapted to directly send the server device capability from the synchronization server to the DM client or as the server synchronization management object to the DM client;

the synchronization server is adapted to receive the client device capability from the DM server, or request for the device capability of the client via the DM server, or send its own device capability to the DM server.

17. A method for synchronization, comprising:

initiating, by a synchronization client, an operation request towards a synchronization server;

performing synchronization if the synchronization server determines that the received operation request is a request for data synchronization and device capability or status ID, or the status ID indicating that the device capability has not been changed; and

performing a device capability negotiation if the synchronization server determines that the received operation request is a request for a device capability negotiation.

18. The method of claim 17, further comprising:

returning, to the synchronization client, a response requesting a device capability negotiation if the synchronization server determines that the received operation request is a request for data synchronization and confirms that the device capability has not been changed or has not been stored, and performing the device capability negotiation according to the returned device capability from the client, and performing synchronization.