CONNECTION SETTING METHOD AND APPARATUS FOR CLIENT COOPERATION IN WIRELESS COMMUNICATION SYSTEM

• US 20140179326A1
• Filed: 05/24/2012
• Published: 06/26/2014
• Est. Priority Date: 05/26/2011
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Cho, Hee Jeong, Lee, Eun Jong, Yuk, Young Soo
• Granted Patent: US 9,572,005 B2
• Time in Patent Office: Days
• US Class Current: 455/445
• CPC Class Codes: H04W 40/22 using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
• CPC Class Codes: H04W 52/0203 in the radio access network or backbone network of wireless communication networks
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 76/38 triggered by timers
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Provided are a connection setting method and apparatus for client cooperation in a wireless communication system. A base station and a source device search for at least one candidate cooperative device for the source device. The base station determines whether a list of candidate cooperative devices for the source device is valid. The source device is connected to a recommended candidate cooperative device selected from the list of candidate cooperative devices. At this stage, the base station and the source device are connected through a first system, and the base station and the recommended candidate cooperative device are connected through a second system.

Claims

1. A method for setting, by a base station, a connection for client cooperation in a wireless communication system, the method comprising:

searching for at least one candidate cooperative device for a source device;

receiving a first activation request message from the source device;

determining whether a list of candidate cooperative devices for the source device is valid;

transmitting a second activation request message to a recommended candidate cooperative device selected from the list of candidate cooperative devices;

receiving an activation response message as a response to the second activation request message from the recommended candidate cooperative device; and

transmitting an activation command message including a result of an activation request of the source device,

wherein the base station and the source device are connected to each other through a first system, and

wherein the base station and the recommended candidate cooperative device are connected to each other through a second system.

2. The method of claim 1, wherein the activation request message includes at least one of the list of candidate cooperative devices for the source device, a list of neighbor devices for the source device, the latest timestamp of the list of candidate cooperative devices for the source device, location information of the source device, and an indicator of whether a connection between the base station and the source device through a first system is maintained.

3. The method of claim 1, wherein the recommend candidate cooperative device is selected based on at least one of the list of candidate cooperative devices for the source device, location of the source device, a total number of the source devices, and moving speed of the source device.

4. The method of claim 1, wherein, if the result of the activation request of the source device is successful, the activation command message includes at least one of multi-RAT information of the recommended candidate cooperative device, multi-RAT random access time, and an indicator of whether a connection between the base station and the source device through a first system is maintained.

5. The method of claim 1, if the list of candidate cooperative devices for the source device is not valid, and the list of candidate cooperative device for the source device is received through the first activation request message, further comprising:

determining whether at least one candidate cooperative device within the list of candidate cooperative devices for the source device is suitable for performing client cooperation.

6. The method of claim 1, further comprising:

receiving a connection complete request message from the source device and the recommended candidate cooperative device; and

transmitting a connection complete response message as a response to the connection complete request message to the source device and the recommended candidate cooperative device.

7. The method of claim 1, wherein the first system is one of the institute of electrical and electronics engineers (IEEE) 802.16, IEEE 802.16m, IEEE 802.20, evolved-UMTS terrestrial radio access (E-UTRA), 3^rd generation partnership project (3GPP) long-term evolution (LTE), or 3GPP LTE-A (advanced), and

wherein the second system is IEEE 802.11.

8. A method for setting, by a source device, a connection for client cooperation in a wireless communication system, the method comprising:

searching for at least one candidate cooperative device for the source device;

transmitting an activation request message to a base station; and

receiving from the base station an activation command message including a result of an activation request of the source device,

wherein the base station and the source device are connected to each other through a first system.

9. The method of claim 8, wherein the activation request message includes at least one of a list of candidate cooperative devices for the source device, a list of neighbor devices for the source device, the latest timestamp of the list of candidate cooperative devices for the source device, location information of the source device, and an indicator of whether a connection between the base station and the source device through a first system is maintained.

10. The method of claim 8, wherein, if the result of the activation request of the source device is successful, the activation command message includes at least one of multi-RAT information of a recommended candidate cooperative device, multi-RAT random access time, and an indicator of whether a connection between the base station and the source device through a first system is maintained.

11. The method of claim 8, further comprising:

performing an authentication and an association procedure with a recommended candidate cooperative device selected by the base station through a second system;

transmitting a connection complete request message to the base station; and

receiving a connection complete response message as a response to the connection complete request message from the base station.

12. The method of claim 8, wherein the first system is one of the institute of electrical and electronics engineers (IEEE) 802.16, IEEE 802.16m, IEEE 802.20, evolved-UMTS terrestrial radio access (E-UTRA), 3^rd generation partnership project (3GPP) long-term evolution (LTE), or 3GPP LTE-A (advanced), and

wherein the second system is IEEE 802.11.

13. A method for setting, by a base station, a connection for client cooperation in a wireless communication system, the method comprising:

transmitting a first activation request message to a source device;

receiving a first activation response message as a response to the first activation request message from the source device;

selecting a recommended candidate cooperative device from a list of candidate cooperative devices;

transmitting a second activation request message to the recommended candidate cooperative device;

receiving a second activation response message as a response to the second activation request message from the recommended candidate cooperative device; and

transmitting an activation command message including a result of an activation request of the base station,

wherein the base station and the source device are connected to each other through a first system, and

wherein the base station and the recommended candidate cooperative device are connected to each other through a second system.

14. The method of claim 13, further comprising

searching at least one candidate cooperative device for the source device after transmitting the first activation request message.

15. The method of claim 13, wherein the first activation response message includes at least one of the list of candidate cooperative devices for the source device, a list of neighbor devices for the source device, the latest timestamp of the list of candidate cooperative devices for the source device, location information of the source device, and an indicator of whether a connection between the base station and the source device through a first system is maintained.