Method and apparatus for allocating an uplink carrier for transmitting uplink control information in a wireless communication system

Patent metadata

Field	Value
Publication number	US-9301286-B2
Application number	US-201013388921-A
Country	US
Kind code	B2
Filing date	Aug 17, 2010
Priority date	Aug 17, 2009
Publication date	Mar 29, 2016
Grant date	Mar 29, 2016

Abstract

The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for allocating an uplink carrier for transmitting uplink control information in a wireless communication system that supports carrier aggregation. According to one embodiment of the present invention, a method for transmitting uplink control information in a wireless communication system that supports carrier aggregation of M (M≧1) uplink component carriers comprises: a step of receiving setup information on a primary uplink component carrier, from among said M uplink component carriers, via which one or more pieces of uplink control information are to be transmitted; a step of multiplexing said one or more pieces of uplink control information; and a step of transmitting the multiplexed uplink control information through the primary uplink component carrier.

First claim

The invention claimed is:

1. A method for transmitting uplink control information in a wireless communication system supporting carrier aggregation of M uplink component carriers, where M is an integer greater than one, the method comprising:
receiving configuration information for an uplink primary component carrier; multiplexing ACK/NACK information with a scheduling request (SR); and
transmitting, in a single subframe, the multiplexed information through the uplink primary component carrier among the M uplink component carriers,
wherein the uplink primary component carrier is an uplink component carrier for transmitting the multiplexed information through a physical uplink control channel (PUCCH) among the M uplink component carriers,
wherein the transmission of the multiplexed information through the PUCCH is allowed only through the uplink primary component carrier, and is not allowed through uplink component carriers other than the uplink primary component carrier, and
wherein the PUCCH is not simultaneously transmitted along with a physical uplink shared channel (PUSCH) in a single subframe.

2. The method of claim 1 , wherein the uplink primary component carrier is configured as a single uplink transmission entity-specific uplink component carrier.

3. The method of claim 1 , wherein the configuration information is received through RRC signaling or L1/L2 control signaling.

4. The method of claim 1 , wherein the configuration information is information directly configuring the uplink primary component carrier, or information being indirectly derived from information configuring a downlink primary component carrier.

5. A user equipment for transmitting uplink control information in a wireless communication system supporting carrier aggregation of M uplink component carriers, where M is an integer greater than one, the user equipment comprising: a receiving unit configured to receive downlink signals; a transmitting unit configured to transmit uplink signals; and
a processing unit configured to be connected to the receiving unit and the transmitting unit and to control operations of the user equipment,
wherein the processor is further configured to:
receive configuration information for an uplink primary component carrier, by using the receiving unit,
multiplex ACK/NACK information with a scheduling request (SR), and
transmit, in a single subframe, the multiplexed information through the uplink primary component carrier among the M uplink component carriers, by using the transmitting unit,
wherein the uplink primary component carrier is an uplink component carrier for transmitting the multiplexed information through a physical uplink control channel (PUCCH) among the M uplink component carriers,
wherein transmission of the multiplexed information through the PUCCH is allowed only through the uplink primary component carrier, and is not allowed through uplink component carriers other than the uplink primary component carrier, and
wherein the PUCCH is not simultaneously transmitted along with a physical uplink shared channel (PUSCH) in a single subframe.

Assignees

• Chung Jae Hoon
• Moon Sung Ho
• Han Seung Hee
• Kim So Yeon
• Lg Electronics Inc

Inventors

• Chung Jae Hoon
• Moon Sung Ho
• Han Seung Hee
• Kim So Yeon

Classifications

• H04W72/21 Primary

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04L5/0055 Primary

  Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861) · CPC title

• H04W72/00

  Local resource management · CPC title

• H04W72/0453

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title

• H04L5/0057

  Physical resource allocation for CQI · CPC title