System and method for trasmitting/receving a signal in a communication system

• US 20090225694A1
• Filed: 03/05/2009
• Published: 09/10/2009
• Est. Priority Date: 03/05/2008
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Choi, Jin-Ghoo, Kim, Jong-In, Han, Seung-Hee, Park, Chi-Hyun
• Granted Patent: US 8,824,379 B2
• Time in Patent Office: Days
• US Class Current: 370/315
• CPC Class Codes: H04B 7/2606 Arrangements for base station coverage control, e.g. by using relays in tunnels

Abstract

Disclosed is a system and method for transmitting/receiving a signal in a communication system. In the system and method, a base station transmits data to a first relay station, which is connected directly thereto from among relay stations belonging to a first relay station group, through a first frame interval, and transmits data to a second relay station, which is connected directly thereto from among relay stations belonging to a second relay station group, through a second frame interval subsequent to the first frame interval. In the first frame interval or the second frame interval where no data is received from the base station, each of the first and second relay stations transmits data to a next relay station connected directly thereto within the same relay station group, and communicates data with a mobile station in direct communication therewith.

Claims

1. A method of transmitting/receiving a signal in a communication system, the method comprising the steps of:

transmitting, by a Base Station (BS), data to a first Relay Station (RS) that is connected directly to the BS from among RSs belonging to a first RS group, through a first frame interval, and transmitting data to a second RS that is connected directly to the BS from among RSs belonging to a second RS group, through a second frame interval subsequent to the first frame interval; and

in the first or second frame interval where no data is received from the BS, transmitting, by each of the first and second RSs, data to a next RS that is connected directly to the first BS or the second RS from among RSs within the same RS group, and communicating data with a Mobile Station (MS) that is directly communicated with the first RS or the second RS.

2. The method as claimed in claim 1, wherein, in the first frame interval, a first frame of the BS comprises a first preamble section including a first preamble, a first MAP section including data burst allocation information for the first RS and data burst allocation information for an MS in direct communication with the BS, a first data burst section including a data burst to be transmitted from the BS to the first RS, and a second data burst section including a data burst to be transmitted from the BS to the MS or a data burst received from the MS to the BS;

and

in the second frame interval, a second frame of the BS comprises a second preamble section including a second preamble, a second MAP section including data burst allocation information for the second RS and data burst allocation information for the MS, a third data burst section including a data burst to be transmitted from the BS to the second RS, and a fourth data burst section including a data burst to be transmitted from the BS to the MS or a data burst received from the MS to the BS.

3. The method as claimed in claim 2, further comprising the step of one of transmitting, by the first RS, a data burst to at least one first MS in direct communication with the first RS, and receiving a data burst from the first MS by using the second data burst section excluding a predetermined transmit/receive transition gap (TTG).

4. The method as claimed in claim 3, further comprising the step of transmitting, by the first RS, a third frame to the first MS and a third RS, which is in direct communication with the first RS, in the second frame interval,

wherein the third frame comprises a first preamble section including the first preamble, a third MAP section including data burst allocation information for the third RS and data burst allocation information for the first MS, a fifth data burst section including a data burst to be transmitted from the first RS to the third RS, and a sixth data burst section including a data burst to be transmitted from the first RS to the first MS or a data burst received from the first MS to the first RS.

5. The method as claimed in claim 2, further comprising the step of transmitting, by the second RS, a fourth frame to a fourth RS and at least one second MS, which are in direct communication with the second RS, in the first frame interval,

wherein the fourth frame comprises a second preamble section including the second preamble, a fourth MAP section including data burst allocation information for the fourth RS and data burst allocation information for the second MS, a seventh data burst section including a data burst to be transmitted from the second RS to the fourth RS, and an eighth data burst section including a data burst to be transmitted from the second RS to the second MS or a data burst received from the second MS to the second RS.

6. The method as claimed in claim 5, further comprising the step of one of transmitting, by the second RS, a data burst to the second MS, and receiving a data burst from the second MS by using the fourth data burst section of the second frame excluding a predetermined TTG.

7. The method as claimed in claim 4, further comprising the step of transmitting, by the third RS, a fifth frame to a fifth RS and at least one third MS, which are in direct communication with the third RS, in the first frame interval,

wherein the fifth frame comprises a first preamble section including the first preamble, a fifth MAP section including data burst allocation information for the fifth RS and data burst allocation information for the third MS, a ninth data burst section including a data burst to be transmitted from the third RS to the fifth RS, and a tenth data burst section including a data burst to be transmitted from the third RS to the third MS or a data burst received from the third MS to the third RS.

8. The method as claimed in claim 7, further comprising the step of one of transmitting, by the third RS, a data burst to the third MS, and receiving a data burst from the third MS by using the sixth data burst section of the third frame excluding a predetermined TTG.

9. The method as claimed in claim 6, further comprising the step of transmitting, by the forth RS, a data burst to at least one fourth MS in direct communication with the fourth RS, or receiving a data burst from the fourth MS by using the eighth data burst section of the fourth frame excluding a predetermined TTG.

10. The method as claimed in claim 9, further comprising the step of transmitting, by the forth RS, a sixth frame from to the fourth MS and a sixth RS, which is in direct communication with the fourth RS, in the second frame interval,

wherein the sixth frame comprises a first preamble section including the first preamble, a sixth MAP section including data burst allocation information for the sixth RS and data burst allocation information for the fourth MS, an eleventh data burst section including a data burst to be transmitted from the fourth RS to the sixth RS, and a twelfth data burst section including a data burst to be transmitted from the fourth RS to the fourth MS or a data burst received from the fourth MS to the fourth RS.

11. The method as claimed in claim 8, further comprising the step of one of transmitting, by the fifth RS, a data burst to at least one fifth MS in direct communication with the fifth RS, and receiving a data burst from the fifth MS by using the tenth data burst section of the fifth frame excluding a predetermined TTG.

12. The method as claimed in claim 10, further comprising the step of one of transmitting, by the sixth RS, a data burst to at least one sixth MS in direct communication with the sixth RS, and receiving a data burst from the sixth MS by using the twelfth data burst section of the sixth frame excluding a predetermined TTG.

13. A system for transmitting/receiving a signal in a communication system, the system comprising:

a Base Station (BS) for transmitting data to a first Relay Station (RS) that is connected directly the BS from among RSs belonging to a first RS group, through a first frame interval, and transmitting data to a second RS, which is connected directly the BS from among RSs belonging to a second RS group, through a second frame interval subsequent to the first frame interval; and

each of the first and second RSs, in the first frame interval or the second frame interval where no data is received from the BS, transmits data to a next RS, which is connected directly to the first BS or the second BS from among RSs within the same RS group, and communicates data with a Mobile Station (MS) that is directly communicated with the first RS or the second RS.

14. The system as claimed in claim 13, wherein, in the first frame interval, a first frame of the BS comprises a first preamble section including a first preamble, a first MAP section including data burst allocation information for the first RS and data burst allocation information for an MS in direct communication with the BS, a first data burst section including a data burst to be transmitted from the BS to the first RS, and a second data burst section including a data burst to be transmitted from the BS to the MS or a data burst received from the MS to the BS;

and

in the second frame interval, a second frame of the BS comprises a second preamble section including a second preamble, a second MAP section including data burst allocation information for the second RS and data burst allocation information for the MS, a third data burst section including a data burst to be transmitted from the BS to the second RS, and a fourth data burst section including a data burst to be transmitted from the BS to the MS or a data burst received from the MS to the BS.

15. The system as claimed in claim 14, wherein the first RS transmits a data burst to at least one first MS in direct communication with the first RS, or receives a data burst from the first MS by using the second data burst section excluding a predetermined transmit/receive transition gap (TTG).

16. The system as claimed in claim 15, wherein the first RS transmits a third frame to the first MS and a third RS, which is in direct communication with the first RS, in the second frame interval;

and

wherein the third frame comprises a first preamble section including the first preamble, a third MAP section including data burst allocation information for the third RS and data burst allocation information for the first MS, a fifth data burst section including a data burst to be transmitted from the first RS to the third RS, and a sixth data burst section including a data burst to be transmitted from the first RS to the first MS or a data burst received from the first MS to the first RS.

17. The system as claimed in claim 14, wherein the second RS transmits a fourth frame to a fourth RS and at least one second MS, which are in direct communication with the second RS, in the first frame interval;

and

wherein the fourth frame comprises a second preamble section including the second preamble, a fourth MAP section including data burst allocation information for the fourth RS and data burst allocation information for the second MS, a seventh data burst section including a data burst to be transmitted from the second RS to the fourth RS, and an eighth data burst section including a data burst to be transmitted from the second RS to the second MS or a data burst received from the second MS to the second RS.

18. The system as claimed in claim 17, wherein the second RS transmits a data burst to the second MS, or receives a data burst from the second MS by using the fourth data burst section of the second frame excluding a predetermined TTG.

19. The system as claimed in claim 16, wherein the third RS transmits a fifth frame to a fifth RS and at least one third RS, which are in direct communication with the third RS, in the first frame interval;

and

wherein the fifth frame comprises a first preamble section including the first preamble, a fifth MAP section including data burst allocation information for the fifth RS and data burst allocation information for the third MS, a ninth data burst section including a data burst to be transmitted from the third RS to the fifth RS, and a tenth data burst section including a data burst to be transmitted from the third RS to the third MS or a data burst received from the third MS to the third RS.

20. The system as claimed in claim 19, wherein the third RS transmits a data burst to the third MS, or receives a data burst from the third MS by using the sixth data burst section of the third frame excluding a predetermined TTG.

21. The system as claimed in claim 18, wherein the fourth RS transmits a data burst to at least one fourth MS in direct communication with the fourth RS, or receives a data burst from the fourth MS by using the eighth data burst section of the fourth frame excluding a predetermined TTG.

22. The system as claimed in claim 21, wherein the fourth RS transmits a sixth frame to the fourth MS and a sixth RS, which is in direct communication with the fourth RS, in the second frame interval;

and

wherein the sixth frame comprises a first preamble section including the first preamble, a sixth MAP section including data burst allocation information for the sixth RS and data burst allocation information for the fourth MS, an eleventh data burst section including a data burst to be transmitted from the fourth RS to the sixth RS, and a twelfth data burst section including a data burst to be transmitted from the fourth RS to the fourth MS or a data burst received from the fourth MS to the fourth RS.

23. The system as claimed in claim 20, wherein the fifth RS transmits a data burst to at least one fifth MS in direct communication with the fifth RS, or receives a data burst from the fifth MS by using the tenth data burst section of the fifth frame excluding a predetermined TTG.

24. The system as claimed in claim 22, wherein the sixth RS transmits a data burst to at least one sixth MS in direct communication with the sixth RS, or receives a data burst from the sixth MS by using the twelfth data burst section of the sixth frame excluding a predetermined TTG.