Method and apparatus for the transmission of a control signal in a radio communication system

• US 9,191,931 B2
• Filed: 08/20/2014
• Issued: 11/17/2015
• Est. Priority Date: 08/11/2008
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Han, Seung Hee, Lee, Moon Il, Kwon, Yeong Hyeon, Ko, Hyun Soo, Koo, Ja Ho, Kim, Dong Cheol, Chung, Jae Hoon, Moon, Sung Ho, Kwak, Jin Sam, Noh, Min Seok, Lee, Hyun Woo
• Primary Examiner(s): Jaroenchonwanit, Bunjob
• Application Number:
  US14/464,092
• Publication Number:
  US 20140362804A1
• Time in Patent Office: 454 Days
• Field of Search: None
• US Class Current: 1/1
• 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 transmitting, by a user equipment, an uplink control signal in a wireless communication system, wherein the wireless communication system uses a time division duplex (TDD) scheme, the method comprising:

receiving a first set of codewords through a first physical downlink shared channel (PDSCH), indicated by a first physical downlink control channel (PDCCH), on a first downlink (DL) carrier in carrier aggregation;

receiving a second set of codewords through a second PDSCH, indicated by a second PDCCH, on a second DL carrier in carrier aggregation;

obtaining a first resource based on the first PDCCH;

obtaining a second resource based on the second PDCCH; and

transmitting an uplink control signal on a single uplink (UL) carrier using at least one of the first resource and the second resource,

wherein the uplink control signal is based on first acknowledgement (ACK)/non-acknowledgement (NACK) information for the first set of codewords and second ACK/NACK information for the second set of codewords.

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

3. The method of claim 1, wherein the first resource is obtained based on a number of first control channel elements (CCE) used for the first PDCCH.

4. The method of claim 1, wherein the uplink control signal includes a quadrature phase shift keying (QPSK)-modulated symbol.

5. The method of claim 1, wherein the uplink control signal is 1-bit.

6. The method of claim 1, wherein the first ACK/NACK information is first representative ACK/NACK information of ACK/NACK information for the first set of codewords.

7. The method of claim 1, wherein the second ACK/NACK information is second representative ACK/NACK information of ACK/NACK information for the second set of codewords.

8. The method of claim 1, wherein the first set of codewords is received via a first plurality of subframes.

9. The method of claim 1, wherein the second set of codewords is received via a second plurality of subframes.

10. A user equipment in a wireless communication system, wherein the wireless communication system uses a time division duplex (TDD) scheme, the user equipment comprising:

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

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

receive a first set of codewords through a first physical downlink shared channel (PDSCH), indicated by a first physical downlink control channel (PDCCH), on a first downlink (DL) carrier in carrier aggregation;

receive a second set of codewords through a second PDSCH, indicated by a second PDCCH, on a second DL carrier in carrier aggregation;

obtain a first resource based on the first PDCCH;

obtain a second resource based on the second PDCCH; and

transmit an uplink control signal on a single uplink (UL) carrier using at least one of the first resource and the second resource,

wherein the uplink control signal is based on first acknowledgement (ACK)/non-acknowledgement (NACK) information for the first set of codewords and second ACK/NACK information for the second set of codewords.

11. The user equipment of claim 10, wherein the first resource and the second resource are different from each other.

12. The user equipment of claim 10, wherein the first resource is obtained based on a number of first control channel elements (CCE) used for the first PDCCH.

13. The user equipment of claim 10, wherein the uplink control signal includes a quadrature phase shift keying (QPSK)-modulated symbol.

14. The user equipment of claim 10, wherein the uplink control signal is 1-bit.

15. The user equipment of claim 10, wherein the first ACK/NACK information is first representative ACK/NACK information of ACK/NACK information for the first set of codewords.

16. The user equipment of claim 10, wherein the second ACK/NACK information is second representative ACK/NACK information of ACK/NACK information for the second set of codewords.

17. The user equipment of claim 10, wherein the first set of codewords is received via a first plurality of subframes.

18. The user equipment of claim 10, wherein the second set of codewords is received via a second plurality of subframes.