METHOD FOR TRANSMITTING RELAY NODE-SPECIFIC CONTROL CHANNEL

• US 20110096717A1
• Filed: 10/08/2009
• Published: 04/28/2011
• Est. Priority Date: 10/10/2008
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Cheon, Byeong Geol, Kim, Ki Jun, Kim, Eun Sun
• Granted Patent: US 8,761,059 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
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0073 Allocation arrangements that take into account other cell interferences for intercell interference mitigation or co-ordination in orthogonal multiplex systems H04J11/005

Abstract

A method for transmitting a downlink signal in a Frequency Division (FD) type base station is disclosed. The method includes transmitting a second downlink control channel specific to a second base station, when a first downlink control channel specific to a first base station is completely transmitted on a entire frequency band in a subframe, in a remaining region except a predetermined transmission region of a first downlink shared channel specific to the first base station in the subframe; and transmitting a second downlink shared channel including data of the RN in the remaining region, when the second downlink control channel is completely transmitted.

Claims

1. A method for transmitting a downlink signal in a Frequency Division (FD) type base station, the method comprising:

transmitting a second downlink control channel specific to a second base station, when a first downlink control channel specific to a first base station is completely transmitted on a entire frequency band in a subframe, in a remaining region except a predetermined transmission region of a first downlink shared channel specific to a first base station in the subframe; and

transmitting a second downlink shared channel including data of a second base station in the remaining region, when the second downlink control channel is completely transmitted.

2. The method according to claim 1, wherein the first downlink control channel includes information about a second downlink shared channel to be transmitted after a predetermined number of subframes.

3. The method according to claim 1, wherein information about a predetermined subframe shared between the first base station and the second base station in Frequency Division Multiplexing (FDM) or Time Division Multiplexing (TDM) is transmitted in advance to a User Equipment (UE).

4. The method according to claim 1, wherein the first base station is a Macro eNB and the second base station is Home eNB.

5. The method according to claim 1, wherein the second base station is a relay node.

6. A method for transmitting a downlink signal in a Frequency Division (FD) type base station, the method comprising:

transmitting a second downlink control channel specific to a second base station in a remaining region except a predetermined transmission region of a first downlink control channel specific to a first base station, at the same timing when the first downlink control channel is transmitted; and

transmitting a second downlink shared channel including data of the second base station in the remaining region, when a first downlink shared channel specific to the first base station is transmitted.

7. The method according to claim 6, wherein the first downlink control channel includes information about a second downlink shared channel to be transmitted after a predetermined number of subframes.

8. The method according to claim 6, wherein a second base station shares an interleaver with a first base station and a predetermined region of the interleaver is reserved for the second base station.

9. The method according to claim 6, wherein the second base station shares control channel elements with the first base station and part of the control channel elements are reserved for the second base station.

10. The method according to claim 6, wherein the first base station is a Macro eNB and the second base station is Home eNB.

11. The method according to claim 6, wherein the second base station is a relay node.

12. A method for transmitting a downlink signal in a Frequency Division (FD) type base station, the method comprising:

transmitting a second downlink control channel specific to a second base station in a remaining region except a first region for transmission of a first downlink control channel specific to a first base station; and

transmitting a second downlink shared channel including data of the second base station in a remaining region except a second region for transmission of a first downlink shared channel specific to the first base station, when the second downlink control channel is completely transmitted,

wherein bandwidths of the first downlink shared channel and the second downlink shared channel are variable in every subframe, and

wherein bandwidths of the first downlink control channel and the second downlink control channel are fixed in every subframe.

13. The method according to claim 12, wherein the first downlink control channel includes information about a second downlink shared channel to be transmitted after a predetermined number of subframes.

14. The method according to claim 12, wherein the first base station is a Macro eNB and the second base station is Home eNB.

15. The method according to claim 12, wherein the second base station is a relay node.

16. A method for transmitting a downlink signal in a Frequency Division (FD) type base station, the method comprising:

transmitting a second downlink control channel specific to a second base station in at least two regions except a predetermined region for transmission of a first downlink control channel specific to a first base station; and

transmitting a second downlink shared channel including data of the second base station in the at least two regions, when the second downlink control channel is completely transmitted.

17. The method according to claim 16, wherein the first downlink control channel includes information about a second downlink shared channel to be transmitted after a predetermined number of subframes.

18. The method according to claim 16, wherein the first base station is a Macro eNB and the second base station is Home eNB.

19. The method according to claim 16, wherein the second base station is a relay node.