METHOD OF FORMING FRAME IN MULTI-HOP RELAY SYSTEM AND SYSTEM FOR IMPLEMENTING THE METHOD

• US 20080113616A1
• Filed: 10/31/2007
• Published: 05/15/2008
• Est. Priority Date: 11/10/2006
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: KIM, Young Il, LEE, Seok Jin, KIM, Ki Seok
• Granted Patent: US 7,920,826 B2
• Time in Patent Office: Days
• US Class Current: 455/7
• CPC Class Codes: H04B 7/155 Ground-based stations H04B7/204 takes precedence
• CPC Class Codes: H04B 7/2606 Arrangements for base station coverage control, e.g. by using relays in tunnels

Abstract

A method of forming a frame in a Mobile Multi-hop Relay (MMR) system, and a system for implementing the method are provided. In a multi-hop relay system, when a relay station of a specific layer receives data, the relay station receives data from both a higher layer and a lower layer. When the relay station transmits data, the relay station transmits data to both the higher layer and the lower layer. By doing so, data reception and data transmission are exclusively performed without interfering with each other, and the method and the system are easily applied to the multi-hop MMR system.

Claims

1. A method of forming a frame of a relay station in a multi-hop relay system having a plurality of layers, the method comprising:

setting the frame of the relay station for one of a receive zone for simultaneously receiving data from a higher layer and a lower layer, and for a transmit zone for simultaneously transmitting data to the higher layer and the lower layer.

2. The method of claim 1, further comprising, when the relay station is located at an odd layer from a base station:

setting the frame of the relay station for the receive zone in a downlink zone; and

setting the frame of the relay station for the transmit zone in an uplink zone.

3. The method of claim 1, further comprising, when the relay station is located at an even layer from a base station:

setting the frame of the relay station for the transmit zone in a downlink zone; and

setting the frame of the relay station for the receive zone in an uplink zone.

4. A relay station in a multi-hop relay system having a plurality of layers, the relay station setting a frame of the relay station for one of a receive zone for simultaneously receiving data from a higher layer and a lower layer, and for a transmit zone for simultaneously transmitting data to the higher layer and the lower layer.

5. The relay station of claim 4, when the relay station is located at an odd layer from a base station, the relay station setting the frame of the relay station for the receive zone in a downlink zone, and setting the frame of the relay station for the transmit zone in an uplink zone.

6. The relay station of claim 4, when the relay station is located at an even layer from a base station, the relay station setting the frame of the relay station for the transmit zone in a downlink zone, and setting the frame of the relay station for the receive zone in an uplink zone.