RELAY STATION DATA TRANSMISSION METHOD

• US 20120238202A1
• Filed: 11/02/2010
• Published: 09/20/2012
• Est. Priority Date: 11/16/2009
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation), Soongsil University Research Consortium Techno-Park
• Original Assignee: LG Electronics, Inc. (LG Corporation), Soongsil University Research Consortium Techno-Park
• Inventors: Kim, Hak Seong, Lee, Ki Ho, Kim, Ki Jun, Shin, Yo An, Kim, San Hae
• Granted Patent: US 9,066,365 B2
• Time in Patent Office: Days
• US Class Current: 455/7
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/542 using measured or perceived quality
• CPC Class Codes: H04W 84/047 using dedicated repeater stations

Abstract

A method of a relay node transmitting data is provided. The method includes receiving scheduling information about a backhaul link and data from a base station; receiving channel information about an access link from relay node user equipment; performing scheduling on the access link based on the scheduling information about the backhaul link and the channel information about the access link; and relaying the data to the relay node user equipment according to a result of the scheduling. The backhaul link means a link between the base station and the relay node, and the access link means a link between the relay node and the relay node user equipment.

Claims

1-9. -9. (canceled)

10. A method of a relay node transmitting data, the method comprising:

receiving scheduling information about a backhaul link and data from a base station;

receiving channel information about an access link from relay node user equipment;

performing scheduling on the access link based on the scheduling information about the backhaul link and the channel information about the access link; and

relaying the data to the relay node user equipment according to a result of the scheduling,

wherein the backhaul link means a link between the base station and the relay node, and the access link means a link between the relay node and the relay node user equipment.

11. The method of claim 10, wherein a radio resource zone where the relay node is able to communicate with the relay node user equipment and a radio resource zone where the relay node is able to communicate with the base station are allocated separately from a radio resource zone where the base station is able to communicate with macro user equipment, wherein the macro user equipment refers to user equipment communicating with the base station.

12. A method of a relay node transmitting data, the method comprising:

transmitting an access link channel measurement reference signal to a relay node user equipment;

receiving access link channel information about the access link channel measurement reference signal from the relay node user equipment;

generating scheduling information about an access link based on the access link channel information;

receiving a backhaul link channel measurement reference signal from a base station;

transmitting backhaul link channel information, obtained by measuring the backhaul link channel measurement reference signal, and scheduling information about the access link to the base station;

receiving data to be relayed to the relay node user equipment from the base station; and

transmitting the data to the relay node user equipment based on the scheduling information about the access link.

13. The method of claim 12, wherein a radio resource zone where the relay node is able to communicate with the base station and a radio resource zone where the relay node is able to communicate with the relay node user equipment overlap with a radio resource zone where the base station is able to communicate with the macro user equipment.

14. A method of a relay node transmitting data, the method comprising:

receiving a backhaul link channel measurement reference signal from a base station;

transmitting backhaul link channel information about backhaul link channel measurement reference signal to the base station;

transmitting an access link channel measurement reference signal to a relay node user equipment;

receiving macro scheduling information about a link between the base station and a macro user equipment, connected to the base station, and data to be relayed to the relay node user equipment from the base station;

receiving access link channel information about the access link channel measurement reference signal from the relay node user equipment;

performing scheduling on an access link based on the access link channel information and the macro scheduling information; and

transmitting the data to the relay node user equipment according to a result of the scheduling on the access link.

15. The method of claim 14, wherein a radio resource zone where the relay node is able to communicate with the base station and a radio resource zone where the relay node is able to communicate with the relay node user equipment overlap with a radio resource zone where the base station is able to communicate with the macro user equipment.

16. The method of claim 14, wherein a radio resource zone where the relay node is able to transmit a signal to the relay node user equipment is identical with a radio resource zone where the base station is able to transmit a signal to the macro user equipment.