METHOD, SYSTEM AND APPARATUS FOR SYNCHRONIZING STREAM BETWEEN BEARER CONTROL LAYER AND BEARER LAYER DEVICES

• US 20080232346A1
• Filed: 04/23/2008
• Published: 09/25/2008
• Est. Priority Date: 10/24/2005
• 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: E, Wei, XU, Rui
• Granted Patent: US 8,160,052 B2
• Time in Patent Office: Days
• US Class Current: 370/350
• CPC Class Codes: H04L 41/5019 Ensuring fulfilment of SLA
• CPC Class Codes: H04L 47/781 Centralised allocation of resources
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment

Abstract

A method, a system and an apparatus for synchronizing the stream between the bearer control layer and bearer layer devices. Bearer layer device returns information corresponding to the stream synchronizing information distributed by the resource manager RM of the bearer control layer back to the resource manager RM (101, 102); when the resource manager RM determines that there is information needed to be synchronized included in the information returned by bearer layer device (103), it compares the information with the one held by itself (105), and performs synchronization to the information within the bearer layer devices that need to be synchronized according to the result of the comparison.

Claims

1. A method for synchronizing a stream between devices of a bearer control layer and a bearer layer, comprising:

returning, by a bearer layer device, a corresponding stream record to a resource manager RM on a bearer control layer in response to stream synchronization information sent from the resource manager RM; and

comparing, by the resource manager RM, a stream record stored in the resource manager RM with the stream record returned from the bearer device, and performing a stream synchronization process on to-be-synchronized information in the bearer layer device in accordance with a comparison result.

2. The method according to claim 1, wherein the process of returning by the bear device stream information to the RM comprises:

sending, by the resource manager RM, the stream synchronization information in a stream synchronization request message to the bearer layer device; and

returning, by the bearer layer device, the corresponding stream record to the resource manager RM in response to the stream synchronization information.

3. The method according to claim 1, wherein the process of returning by the bear device stream information to the RM comprises:

sending, by the resource manager RM, to the bearer layer device the stream synchronization information in a stream synchronization request message carrying flag information of a stream to be synchronized; and

checking, by the bear device, to determine whether a stream carrying the flag information is present, and if there is no stream carrying the flag information, returning an end message to the resource manager RM;

if a stream carrying the flag information is present, selecting and returning the stream record carrying the flag information to the resource manager RM.

4. The method according to claim 1, wherein the process of returning by the bear device stream information to the RM comprises:

sending, by the resource manager RM, to the bearer layer device a policy dispatch message carrying the information to be stream synchronized; and

returning, by the bearer layer device, the corresponding stream record to the resource manager RM in response to the stream synchronization information.

5. The method according to claim 1, wherein the process of returning by the bear device stream information to the RM comprises:

sending, by the resource manager RM, to the bearer layer device a policy dispatch message carrying the information to be stream synchronized, the information to be stream synchronized carrying flag information of a stream to be synchronized; and

checking, by the bearer layer device, to determine whether a stream carrying the flag information is present, and if there is no stream carrying the flag information, returning an end message to the resource manager RM;

if a stream carrying the flag information is present, selecting and returning the stream record carrying the flag information to the resource manager RM.

6. The method according to claim 2, wherein the process of returning by the bear device stream information to the RM further comprises:

returning, by the bearer layer device, an end message to the resource manager RM after returning the stream record to the resource manager RM; and

determining, by the resource manager RM, an end of returning the stream record from the bearer layer device in accordance with the received end message.

7. The method according to claim 1, wherein the process of performing the synchronization process by the resource manager RM comprises:

receiving, by the resource manager RM, the stream record returned from the bearer layer device, searching stream records stored in the resource manager RM for the stream record returned from the bearer layer device, and if the stream record returned from the bearer layer device is absent, instructing the bear device to delete the corresponding stream record;

if the stream record returned from the bearer layer device is present, comparing corresponding stream record stored in the resource manager RM with the stream record returned from the bearer layer device, and if they are inconsistent, sending the corresponding stream record to the bearer layer device and instructing the bearer layer device to update the corresponding stream record;

if they are consistent, performing no process.

8. The method according to claim 7, further comprising:

performing, by the bearer layer device, a deletion or update process in response to the received instruction, and returning processing result information to the resource manager RM.

9. The method according to claim 8, further comprising:

receiving, by the resource manager RM, the processing result information returned from the bearer layer device, if it is determined from the processing result information that the bearer layer device has synchronized the corresponding stream record successfully, ending the synchronization process;

if it is determined from the processing result information that the bearer layer device has not synchronized the corresponding stream record successfully, continuing with sending new stream synchronization information to the bearer layer device.

10. A system for synchronizing a stream between devices of a bearer control layer and a bearer layer, comprising a bearer layer device and a resource manager RM, wherein the RM comprises a request module and a determination module and the comprises a response module and a synchronization processing module;

wherein

the request module is adapted to send stream synchronization information to the bear device;

the response module is adapted to return a corresponding stream record to the RM in response to the stream synchronization information sent from the request module;

the determination module is adapted to compare the stream record returned from the response module with a stream record stored in the RM and to instruct the bear device to perform a stream synchronization process in accordance with a comparison result; and

the synchronization processing module is adapted to perform the stream synchronization process on to-be-synchronized information in the bear device in accordance with the instruction from the determination module.

11. The system according to claim 10, wherein when the stream synchronization information sent from the request module comprises flag information of a stream to be synchronized, the response module returns a corresponding stream record to the RM in accordance with the received flag information of the stream;

and when the stream synchronization information sent from the request module comprises no flag information of a stream to be synchronized, the response module returns all stream records stored in the response module to the RM.

12. The system according to claim 11, wherein the response module returns an end message to the resource manager RM after returning the stream record to the RM, and the response module returns an end message to the resource manager RM upon determining that the flag information of the stream sent from the request module is absent in the stream records stored in the bear device.

13. The system according to claim 11, wherein upon determining that the stream record returned from the response module is absent in the stream records stored in the RM, the determination module instructs the synchronization processing module to delete the corresponding stream record;

and upon determining that the stream record returned from the response module is present in the stream records stored in the RM, the determination module compares the returned stream record with the corresponding stream record stored in the RM, and if they are inconsistent, the determination module sends the corresponding stream record to the synchronization processing module and instructs the synchronization processing module to update the corresponding stream record;

if they are consistent, the determination module performs no process.

14. The system according to claim 13, wherein the synchronization processing module returns processing result information to the RM at the end of the synchronization process, and the request module receives the processing result information returned from the bearer layer device and if it is determined from the processing result information that the bearer layer device has synchronized the corresponding stream record successfully, ends the synchronization process;

if it is determined from the processing result information that the bearer layer device has not synchronized the corresponding stream record successfully, the request module continues with sending new stream synchronization information.

15. A resource manager RM, comprising a request module and a determination module, wherein

the request module is adapted to send stream synchronization information to a bear device;

and

the determination module is adapted to compare a stream record returned from the bear device with a stream record stored in the RM and to instruct the bear device to perform a stream synchronization process in accordance with a comparison result.

16. A bearer layer device, comprising a response module and a synchronization processing module, wherein:

the response module is adapted to return a corresponding stream record to a resource manager RM in response to the stream synchronization information sent from the RM; and

the synchronization processing module is adapted to perform a stream synchronization process on to-be-synchronized information in the bear device in accordance with an instruction from the resource manager RM.