Method and Apparatus for Transmitting Control Information in a Wireless Communication System

• US 20130077593A1
• Filed: 06/07/2011
• Published: 03/28/2013
• Est. Priority Date: 06/07/2010
• Status: Abandoned Application

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Han, Seunghee, Moon, Sungho, Chung, Jaehoon, Ko, Hyunsoo, Noh, Minseok, Lee, Moonil
• Application Number:
  US13/702,414
• Publication Number:
  US 20130077593A1
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0079 Formats for control data H04L1/16 takes precedence; training sequences H04L25/00 and H04L27/00
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0057 Physical resource allocation for CQI
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network

Abstract

The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting control information in a wireless communication system and to an apparatus for the method, wherein the method comprises a step of receiving a plurality of scheduling information for transmission using a plurality of physical uplink shared channels (PUSCHs), and a step of transmitting uplink control information (UCI) through one PUSCH among the plurality of PUSCHs, if the transmission using the plurality of PUSCHs is present in the subframe which requires a UCI transmission. If a PUSCH transmission is present on a primary resource in the subframe, the UCI is transmitted through the PUSCH of the primary resource. If a PUSCH transmission is not present on the primary resource in the subframe, the UCI is transmitted through the PUSCH of the secondary resource having the smallest index among a plurality of secondary resources on which PUSCH transmissions are present.

Claims

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

receiving a plurality of scheduling information for transmission of a plurality of physical uplink shared channels (PUSCHs); and

transmitting uplink control information (UCI) through one PUSCH among the plurality of PUSCHs, if the transmission of the plurality of PUSCHs is present in a subframe which requires UCI transmission,

wherein, if there is a PUSCH transmission on a primary resource in the subframe, the UCI is transmitted through the PUSCH of the primary resource, and

wherein, if there is no PUSCH transmission on the primary resource in the subframe, the UCI is transmitted through the PUSCH of the secondary resource having the smallest index among a plurality of secondary resources on which PUSCH transmissions are present.

2. The method of claim 1, wherein the primary resource corresponds to a primary component carrier (PCC), and the secondary resource corresponds to a secondary component carrier (SCC).

3. The method of claim 1, wherein the UCI includes at least one of periodic channel status information (CSI) and acknowledgement/negative acknowledgement (ACK/NACK).

4. The method of claim 1, wherein the index is a logical index used for CC identification, and is configured through radio resource control (RRC) signaling.

5. The method of claim 1, further comprising:

transmitting the UCI through a physical uplink control channel (PUCCH) if the subframe, which requires the UCI transmission, is different from the subframe where the transmission of the plurality of PUSCHs is present.

6. A user equipment configured to transmit control information in a wireless communication system, the user equipment comprising:

a radio frequency (RF) unit; and

a processor,

wherein the processor configured to receive a plurality of scheduling information for transmission of a plurality of physical uplink shared channels (PUSCHs), and transmit uplink control information (UCI) through one PUSCH among the plurality of PUSCHs, if the transmission of the plurality of PUSCHs is present in a subframe which requires UCI transmission,

wherein, if there is a PUSCH transmission on a primary resource in the subframe, the UCI is transmitted through the PUSCH of the primary resource, and

wherein, if there is no PUSCH transmission on the primary resource in the subframe, the UCI is transmitted through the PUSCH of the secondary resource having the smallest index among a plurality of secondary resources on which PUSCH transmissions are present.

7. The user equipment of claim 6, wherein the primary resource corresponds to a primary component carrier (PCC), and the secondary resource corresponds to a secondary component carrier (SCC).

8. The user equipment of claim 6, wherein the UCI includes at least one of periodic channel status information (CSI) and acknowledgement/negative acknowledgement (ACK/NACK).

9. The user equipment of claim 6, wherein the index is a logical index used for CC identification, and is configured through radio resource control (RRC) signaling.

10. The user equipment of claim 6, configured to transmit the UCI through a physical uplink control channel (PUCCH) if the subframe, which requires the UCI transmission, is different from the subframe where the transmission of the plurality of PUSCHs is present.