METHOD AND APPARATUS FOR THE TRANSMISSION OF A CONTROL SIGNAL IN A RADIO COMMUNICATION SYSTEM

• US 20110142000A1
• Filed: 08/11/2009
• Published: 06/16/2011
• Est. Priority Date: 08/11/2008
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Dong Cheol, Kwak, Jin Sam, Noh, Min Seok, Ko, Hyun Soo, Moon, Sung Ho, Kwon, Yeong Hyeon, Koo, Ja Ho, Chung, Jae Hoon, Lee, Hyun Woo, Han, Seung Hee, Lee, Moon Il
• Granted Patent: US 8,848,629 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 25/4906 using binary codes
• CPC Class Codes: H04L 27/02 Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation H04L27/32 takes precedence
• CPC Class Codes: H04L 27/18 Phase-modulated carrier systems, i.e. using phase-shift keying H04L27/32 takes precedence
• CPC Class Codes: H04L 27/2602 Signal structure
• CPC Class Codes: H04L 27/2603 Signal structure ensuring backward compatibility with legacy system
• 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 5/0055 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 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The present invention provides a method and an apparatus for the transmission of control signal in a radio communication system. The method includes the steps of processing first control information on the basis of a first resource index to create a first control signal, processing second control information on the basis of a second resource index to create a second control signal, and transmitting the first control signal and the second control signal.

Claims

1. A method for control signal transmission performed by a user equipment in a radio communication system, the method comprising:

generating a first control signal by processing first control information based on a first resource index;

generating a second control signal by processing second control information based on a second resource index; and

transmitting the first control signal and the second control signal to a base station.

2. The method of claim 1, wherein the transmitting of the first control signal and the second control signal to the base station comprises:

generating a third control signal by phase-shifting the second control signal;

generating a fourth control signal by combining the first control signal and the third control signal; and

transmitting the fourth control signal.

3. The method of claim 1, wherein the first control information is control information for a first downlink carrier, and the second control information is control information for a second downlink carrier.

4. The method of claim 3, wherein the first control information and the second control information are transmitted on the same uplink carrier.

5. The method of claim 1, wherein the first control signal and the second control signal are transmitted concurrently.

6. The method of claim 1, wherein the first resource index and the second resource index are different from each other.

7. The method of claim 1, wherein the first resource index indicates a first cyclic shift index and a first resource block, and the second resource index indicate a second cyclic shift index and a second resource block.

8. The method of claim 7, wherein the generating of the first control signal comprises:

generating a first cyclically shifted sequence by cyclically shifting a base sequence by a first cyclic shift amount obtained from the first cyclic shift index;

generating a first modulated sequence based on the first cyclically shifted sequence and a first modulation symbol for the first control information; and

generating the first control signal after mapping the first modulated sequence to the first resource block,

wherein the generating of the second control signal comprises;

generating a second cyclically shifted sequence by cyclically shifting the base sequence by a second cyclic shift amount obtained from the second cyclic shift index;

generating a second modulated sequence based on the second cyclically shifted sequence and a second modulation symbol for the second control information; and

generating the second control signal after mapping the second modulated sequence to the second resource block.

9. The method of claim 1, wherein the first control information is a first acknowledgment (ACK)/non-acknowledgment (NACK) for first data received on a first downlink carrier, and the second control information is a second ACK/NACK for second data received on a second downlink carrier.

10. The method of claim 9, further comprising:

receiving the first data on the first downlink carrier; and

receiving the second data on the second downlink carrier.

11. A radio communication apparatus comprising:

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

a processor coupled to the RF unit and configured for generating a first control signal by processing first control information based on a first resource index, generating a second control signal by processing second control information based on a second resource index, and transmitting the first control signal and the second control signal to a base station.