Method and apparatus for transmitting uplink control information

• US 8,787,277 B2
• Filed: 02/09/2010
• Issued: 07/22/2014
• Est. Priority Date: 02/09/2009
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Hak Seong, Kim, Byoung Hoon, Seo, Han Byul, Lee, Dae Won
• Primary Examiner(s): Zhao, Wei
• Application Number:
  US13/148,389
• Publication Number:
  US 20110310821A1
• Time in Patent Office: 1,624 Days
• Field of Search: 370/329, 370/338
• US Class Current: 370/329
• CPC Class Codes: H04B 7/15542 Selecting at relay station its transmit and receive resources selection of wireless resources by user or terminal H04W72/02; arrangements affording multiple use of the transmission path by two-dimensional division of the resources H04L5/0003, or by allocating sub-channels H04L5/003
• CPC Class Codes: H04B 7/2606 Arrangements for base station coverage control, e.g. by using relays in tunnels
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04W 4/00 Services specially adapted for wireless communication networks; Facilities therefor
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A method of transmitting uplink control information of a user equipment in a wireless communication system is provided. The method includes: receiving reserved resource information that indicates a radio resource capable of transmitting the uplink control information; receiving a block subframe indicator that indicates a radio resource for transmitting a signal from a relay station to a base station; comparing a transmission-reserved subframe indicated by the reserved resource information with a block subframe indicated by the block subframe indicator; and transmitting the uplink control information in the transmission-reserved subframe if the transmission-reserved subframe does not overlap with the block subframe.

Claims

1. A method for transmitting uplink control information of a user equipment in a wireless communication system, the method comprising:

receiving reserved resource information that indicates a plurality of transmission-reserved subframes, each of the transmission-reserved subframes being periodically configured to transmit uplink control information;

receiving a block subframe indicator that indicates a block subframe for transmitting a signal from a relay station to a base station;

comparing the plurality of transmission-reserved subframes indicated by the reserved resource information with the block subframe indicated by the block subframe indicator;

selecting a transmission-reserved subframe which does not coincide with the block subframe among the plurality of transmission-reserved subframes; and

transmitting the uplink control information in the selected transmission-reserved subframe.

2. The method of claim 1, further comprising receiving a collision mode indicator, wherein the collision mode indicator indicates any one of a collision-enabled mode for allowing overlapping between the transmission-reserved subframe and the block subframe and a collision-disabled mode for not allowing overlapping between the transmission-reserved subframe and the block subframe.

3. The method of claim 2, wherein the receiving of the block subframe indicator and the comparing of the plurality of transmission-reserved subframes are performed only when the collision mode indicator indicates the collision-enabled mode.

4. The method of claim 1, wherein the reserved resource information includes information on a transmission periodicity for the plurality of transmission-reserved subframes and a subframe offset value.

5. The method of claim 4, further comprising receiving a reserved resource information modification indicator that modifies the reserved resource information, wherein the reserved resource information modification indicator modifies at least one of the transmission periodicity and the subframe offset value.

6. The method of claim 1, wherein the reserved resource information is transmitted by using a signal of a layer higher than a physical layer.

7. The method of claim 1, wherein the block subframe indicator is transmitted by using a physical layer signal or a signal of a layer higher than a physical layer.

8. The method of claim 7, wherein if the block subframe indicator is transmitted by using the physical layer signal, the block subframe indicator is transmitted through a physical downlink control channel (PDCCH) included in the transmission-reserved subframe.

9. The method of claim 1, wherein if the uplink control information is a hybrid automatic repeat request (HARQ) acknowledgement (ACK)/negative acknowledgement (NACK), the reserved resource information includes an ACK/NACK repetition indicator that indicates whether HARQ ACK/NACK transmission is repeated in consecutive subframes and information that indicates an HARQ ACK/NACK repetition duration.

10. The method of claim 9, wherein if the ACK/NACK repetition indicator indicates ACK/NACK repetition, the ACK/NACK is transmitted in the selected transmission-reserved subframe.

11. The method of claim 1, wherein the uplink control information includes at least one of a scheduling request, channel feedback information for feeding back a channel state, a sounding reference signal, and an HARQ ACK/NACK.

12. An apparatus comprising:

a radio frequency (RF) unit for transmitting and receiving a radio signal; and

a processor coupled to the RF, unit and configured to;

receive reserved resource information that indicates a plurality of transmission-reserved subframes, each of the transmission-reserved subframes being periodically configured to transmit uplink control information,

receive a block subframe indicator that indicates a block subframe for transmitting a signal from a relay station to a base station,

compare the plurality of transmission-reserved subframes indicated by the reserved resource information with the block subframe indicated by the block subframe indicator,

transmit the uplink control information in a selected transmission-reserved subframe among the plurality of transmission-reserved subframes, and

select a transmission-reserved subframe which does not coincide with the block subframe among the plurality of transmission-reserved subframes,

wherein the selected transmission-reserved subframe is a subframe which does not overlap with the block subframe.