COOPERATIVE COMMUNICATION PROCESSING METHOD, ENB, AND SYSTEM

• US 20150230142A1
• Filed: 04/24/2015
• Published: 08/13/2015
• Est. Priority Date: 10/24/2012
• 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: YANG, Fei, LI, Yue, GUO, Xiaolong
• Granted Patent: US 9,717,026 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04W 36/00837 Determination of triggering parameters for hand-off
• CPC Class Codes: H04W 36/008375 based on historical data
• CPC Class Codes: H04W 36/03 Reselecting a link using a direct mode connection
• CPC Class Codes: H04W 36/38 by fixed network equipment
• CPC Class Codes: H04W 76/30 Connection release

Abstract

Embodiments of the present invention provide a cooperative communication processing method, the method includes: acquiring report information of a first communication device, where the first communication device is a supporting device or a benefited device; and if it is determined, according to the report information of the first communication device, that the first communication device needs to perform a communication handover, executing the following steps: sending a connection configuration message to the first communication device, so that the first communication device releases a cooperative bearer context between the first communication device and a source eNB; and sending a connection configuration message to a second communication device. According to the present invention, release or maintenance processing of a cooperative relationship between cooperative communication devices in a communication handover process can be implemented.

Claims

1. A cooperative communication processing method, wherein the method comprises:

acquiring report information of a first communication device, wherein the first communication device is a supporting device or a benefited device; and

if it is determined, according to the report information of the first communication device, that the first communication device needs to perform a handover, executing the following steps;

sending a connection configuration message to the first communication device, so that the first communication device releases a cooperative bearer context between the first communication device and a source eNB; and

sending a connection configuration message to a second communication device, so that the second communication device releases a cooperative bearer context between the second communication device and the first communication device and a cooperative bearer context between the second communication device and the source eNB, wherein the second communication device is a cooperative communication device of the first communication device.

2. The method according to claim 1, wherein after it is determined, according to the report information of the first communication device, that the first communication device needs to perform the handover, and before the sending a connection configuration message to the first communication device, the method further comprises:

determining that all bearer contexts of the first communication device are cooperative bearer contexts.

3. The method according to claim 1, wherein after it is determined, according to the report information of the first communication device, that the first communication device needs to perform the handover, and before the sending a connection configuration message to the first communication device, the method further comprises:

confirming that a bearer context of the first communication device comprises a non-cooperative bearer context;

sending a handover request message to a handover target eNB of the first communication device, wherein the handover request message comprises a first bearer context between the source eNB and the first communication device, and the first bearer context comprises a non-cooperative bearer context between the source eNB and the first communication device; and

receiving a handover request acknowledge message from the handover target eNB of the first communication device, wherein the handover acknowledge message comprises a second bearer context that is allocated to the first communication device according to the first bearer context by the handover target eNB of the first communication device; and

the sending a connection configuration message to the first communication device comprises;

sending the connection configuration message to the first communication device, wherein the connection configuration message carries the second bearer context that is allocated to the first communication device by the handover target eNB of the first communication device, so that the first communication device initiates a random access procedure to the handover target eNB of the first communication device according to the second bearer context that is allocated to the first communication device by the handover target eNB of the first communication device.

4. The method according to claim 3, wherein the first bearer context further comprises the cooperative bearer context between the source eNB and the first communication device.

5. The method according to claim 1, wherein before the sending a connection configuration message to the first communication device, the method further comprises:

sending a handover request message to a handover target eNB of the first communication device, wherein the handover request message comprises a first bearer context between the source eNB and the first communication device, and the first bearer context comprises the cooperative bearer context and a non-cooperative bearer context between the source eNB and the first communication device; and

receiving a handover acknowledge message from the handover target eNB of the first communication device, wherein the handover acknowledge message comprises a second bearer context that is allocated to the first communication device according to the first bearer context by the handover target eNB of the first communication device; and

the sending a connection configuration message to the first communication device comprises;

sending the connection configuration message to the first communication device, wherein the connection configuration message carries the second bearer context that is allocated to the first communication device by the handover target eNB of the first communication device, so that the first communication device initiates a random access procedure to the handover target eNB of the first communication device according to the second bearer context that is allocated to the first communication device by the handover target eNB of the first communication device.

6. The method according to claim 3, wherein before the sending a connection configuration message to a second communication device, the method further comprises:

after the handover acknowledge message is received from the handover target eNB of the first communication device, when a first time interval reaches a threshold, confirming that the second communication device is still served by the source base station.

7. The method according to claim 3, wherein the handover acknowledge message further comprises a eNB identifier of the handover target eNB of the first communication device and a radio network temporary identifier that is allocated to the first communication device by the handover target eNB of the first communication device, and the method further comprises:

saving, in the cooperative bearer context between the source eNB and the second communication device that is saved in the source eNB, the eNB identifier of the handover target eNB of the first communication device and the radio network temporary identifier that is allocated to the first communication device by the handover target eNB of the first communication device.

8. The method according to claim 7, wherein the method further comprises:

acquiring report information of the second communication device;

determining, according to the acquired report information of the second communication device, whether the second communication device needs to perform handover processing; and

if the second communication device needs to perform the handover processing, sending a handover request message to a handover target eNB of the second communication device, wherein the handover request message comprises the bearer context between the source eNB and the second communication device, the eNB identifier of the handover target eNB of the first communication device, and the radio network temporary identifier that is allocated to the first communication device by the handover target eNB of the first communication device.

9. A source eNB for implementing cooperative communication processing, wherein the source eNB comprises:

a report information acquiring module, configured to acquire report information of a first communication device, wherein the first communication device is a supporting device or a benefited device, and a cooperative communication device of the first communication device is a second communication device;

a handover confirming module, configured to determine, according to the report information of the first communication device acquired by the report information acquiring module, whether the first communication device needs to perform a handover;

a first configuring module, configured to send a connection configuration message to the first communication device when the handover confirming module determines that the first communication device needs to perform the handover, so that the first communication device releases a cooperative bearer context between the first communication device and the source eNB; and

a second configuring module, configured to send a connection configuration message to the second communication device when the handover confirming module confirms that the first communication device needs to perform the handover, so that the second communication device releases a cooperative bearer context between the second communication device and the first communication device and a cooperative bearer context between the second communication device and the source eNB.

10. The source eNB according to claim 9, wherein the source eNB further comprises:

a cooperative bearer context determining module, configured to confirm that all bearer contexts of the first communication device are cooperative bearer contexts, when the handover confirming module confirms that the first communication device needs to perform the handover.

11. The source eNB according to claim 9, wherein the source eNB further comprises:

a cooperative bearer determining module, configured to confirm that a bearer context of the first communication device comprises a non-cooperative bearer context, when the handover confirming module confirms that the first communication device needs to perform the handover;

a handover request sending module, configured to send a handover request message to a handover target eNB of the first communication device when the cooperative bearer determining module confirms that the bearer context of the first communication device comprises a non-cooperative bearer context, wherein the handover request message comprises a first bearer context between the source eNB and the first communication device, and the first bearer context comprises a non-cooperative bearer context between the source eNB and the first communication device; and

a handover acknowledge receiving module, configured to receive a handover acknowledge message from the handover target eNB of the first communication device, wherein the handover acknowledge message comprises a second bearer context that is allocated to the first communication device according to the first bearer context by the handover target eNB of the first communication device;

wherein

the first configuring module is specifically configured to;

when the cooperative bearer determining module determines that the bearer context of the first communication device comprises a non-cooperative bearer context, send the connection configuration message to the first communication device, wherein the connection configuration message carries the second bearer context that is allocated to the first communication device by the handover target eNB of the first communication device and received by the handover acknowledge receiving module, so that the first communication device initiates a random access procedure to the handover target eNB of the first communication device according to the second bearer context that is allocated to the first communication device by the handover target eNB of the first communication device.

12. The source eNB according to claim 11, wherein the handover request message sent by the handover request sending module to the handover target eNB of the first communication device further comprises the cooperative bearer context between the source eNB and the first communication device.

13. The source eNB according to claim 9, wherein the source eNB further comprises:

a handover request sending module, configured to send a handover request message to a handover target eNB of the first communication device, wherein the handover request message comprises a first bearer context between the source eNB and the first communication device, and the first bearer context comprises the cooperative bearer context and a non-cooperative bearer context between the source eNB and the first communication device; and

a handover acknowledge receiving module, configured to receive a handover acknowledge message from the handover target eNB of the first communication device, wherein the handover acknowledge message comprises a second bearer context that is allocated to the first communication device according to the first bearer context by the handover target eNB of the first communication device;

wherein

the first configuring module is specifically configured to;

send the connection configuration message to the first communication device, wherein the connection configuration message carries the second bearer context that is allocated to the first communication device by the handover target eNB of the first communication device and received by the handover acknowledge receiving module, so that the first communication device initiates a random access procedure to the handover target eNB of the first communication device according to the second bearer context that is allocated to the first communication device by the handover target eNB of the first communication device.

14. The source eNB according to claim 11, wherein the source eNB further comprises:

a first determining module, configured to;

after the handover acknowledge receiving module receives the handover acknowledge message from the handover target eNB of the first communication device, when a first time interval reaches a threshold, determine whether the second communication device is still served by the source eNB, and if the second communication device is still served by the source eNB, trigger the second configuring module to send the connection configuration message to the second communication device.

15. The source eNB according to claim 11, wherein the handover acknowledge message received by the handover acknowledge receiving module further comprises a eNB identifier of the handover target eNB of the first communication device and a radio network temporary identifier that is allocated to the first communication device by the handover target eNB of the first communication device, and the source eNB further comprises:

a radio network temporary identifier saving module, configured to save, in the bearer context between the source eNB and the second communication device that is saved in the source eNB, the eNB identifier of the handover target eNB of the first communication device and the radio network temporary identifier that is allocated to the first communication device by the handover target eNB of the first communication device.

16. A cooperative communication processing method, wherein the method comprises:

sending, by a first communication device, report information to a source eNB, so that the source eNB confirms, according to the report information, that the first communication device needs to perform a handover, wherein the first communication device is a supporting device or a benefited device;

receiving, by the first communication device, a connection configuration message from the source eNB after the source eNB confirms that the first communication device needs to perform the handover; and

releasing, by the first communication device, a cooperative bearer context between the first communication device and the source eNB according to the connection configuration message.

17. The cooperative communication processing method according to claim 16, wherein the method further comprises:

releasing, by the first communication device, a cooperative bearer context between the first communication device and a second communication device according to the connection configuration message, wherein the second communication device is a cooperative communication device of the first communication device.

18. A communication device, wherein the communication device is a supporting device or a benefited device, and the communication device comprises:

a report information sending module, configured to send report information to a source eNB, so that the source eNB confirms, according to the report information, that the communication device needs to perform a handover;

a connection configuration acquiring module, configured to acquire a connection configuration message from the source eNB after the source eNB confirms that the communication device needs to perform the handover; and

a bearer context releasing module, configured to release a cooperative bearer context between the communication device and the source eNB according to the connection configuration message that is acquired by the connection configuration acquiring module.

19. The communication device according to claim 18, wherein the bearer releasing module is further configured to release a cooperative bearer context between the communication device and a second communication device according to the connection configuration message, wherein the second communication device is a cooperative communication device of the communication device.