METHOD OF CONTROLLING FEEDBACK CHANNEL IN COMMUNICATION SYSTEM COMPRISING AT LEAST ONE RELAY STATION

• US 20100260095A1
• Filed: 07/30/2008
• Published: 10/14/2010
• Est. Priority Date: 07/30/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Ryu, Ki Seon, Youn, Ae Ran, Kim, Yong Ho
• Granted Patent: US 8,305,952 B2
• Time in Patent Office: Days
• US Class Current: 370/315
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0029 Reduction of the amount of signalling, e.g. retention of useful signalling or differential signalling power control H04W52/04
• CPC Class Codes: H04L 2001/0097 Relays
• CPC Class Codes: H04L 27/2601 Multicarrier modulation systems
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports

Abstract

A method for controlling a feedback channel in a communication system including a relay station (RS) is disclosed. In a method for controlling transmission/reception of a channel quality information feedback in a wireless communication system including a relay station (RS), the RS receives total channel quality information from a mobile station (MS), transmits the channel quality information to a base station (BS), receives a delta CQI from the mobile station (MS), and transmits the delta CQI to the base station (BS) according to control information.

Claims

1. A feedback control method for channel quality information of a relay station (RS) in a wireless communication system including the relay station (RS) comprising:

receiving total channel quality information from a mobile station (MS) via a first uplink channel resource area;

transmitting the channel quality information to a base station via a third uplink channel resource area; and

receiving delta information of the channel quality information from the mobile station (MS) via a second uplink channel resource area.

2. The feedback control method according to claim 1, further comprising:

transmitting the delta information of the channel quality to the base station (BS) via a fourth uplink channel resource.

3. The feedback control method according to claim 1, further comprising:

analyzing at least one of the channel quality information and the delta information to acquire control information, and transmitting the acquired control information to the base station (BS) via a fifth uplink channel resource.

4. The feedback control method according to claim 1, further comprising:

transmitting data, in which at least one of the channel quality information and delta information of the channel quality information is reflected, to the mobile station (MS).

5. The feedback control method according to claim 1, further comprising:

transmitting control information, in which at least one of the channel quality information and delta information of the channel quality information is reflected, to the mobile station (MS).

6. A feedback control method for channel quality information of a mobile station (MS) for supporting a wireless communication system including a relay station (RS) comprising:

transmitting total channel quality information to a relay station via a first uplink channel resource area; and

transmitting delta information of the channel quality information to the relay station (RS) via a second uplink channel resource area.

7. The feedback control method according to claim 6, further comprising:

receiving data in which at least one of the channel quality information and delta information of the channel quality information is reflected.

8. The feedback control method according to claim 6, further comprising:

receiving control information in which at least one of the channel quality information and delta information of the channel quality information is reflected.

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

transmitting the channel quality information or delta information of the channel quality information to a base station (BS) according to the control information.

10. The feedback control method according to claim 8, further comprising:

transmitting the channel quality information or delta information of the channel quality information according to the control information, and receiving associated control information or data via a third relay station newly connected.