METHOD FOR TRANSMITTING CONTROL SIGNAL USING EFFICIENT MULTIPLEXING

• US 20100111031A1
• Filed: 10/29/2009
• Published: 05/06/2010
• Est. Priority Date: 10/02/2006
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Jung Hoon, Jeong, Seong Hoon, Kim, Ki Jun, Seo, Dong Youn, Kim, Bong Hoe, Yun, Young Woo, Ahn, Joon Kui, Yoon, Suk Hyon, Kim, Hak Seong, Choi, Sung Duk
• Granted Patent: US 7,995,553 B2
• Time in Patent Office: Days
• US Class Current: 370/330
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/1858 Transmission or retransmission of more than one copy of acknowledgement message
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0026 Division using four or more dimensions
• 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: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A method of transmitting a control signal using efficient multiplexing is disclosed. The present invention includes the steps of multiplexing a plurality of 1-bit control signals within a prescribed time-frequency domain by code division multiple access (CDMA) and transmitting the multiplexed control signals, wherein a plurality of the 1-hit control signals include a plurality of the 1-bit control signals for a specific transmitting side. Accordingly, reliability on 1-bit control signal transmission can be enhanced.

Claims

1-11. -11. (canceled)

12. A method of transmitting ACK/NACK signals, the method comprising:

repeating each of the ACK/NACK signals by a predetermined numbers;

multiplexing each bits from the repeated ACK/NACK signals by a Code Division Multiple Access (CDMA) scheme at different time-frequency domains different from each bits of the repeated ACK/NACK signals within a prescribed time-frequency domain; and

transmitting the multiplexed ACK/NACK signals,

wherein the ACK/NACK signals are discriminated by orthogonal or pseudo-orthogonal codes used for multiplexing of each of the ACK/NACK signals.

13. The method of claim 12, wherein a number of ACK/NACK signals correspond to a number of the orthogonal or pseudo-orthogonal codes used for multiplexing of each of the ACK/NACK signals.

14. The method of claim 12, wherein the multiplexed ACK/NACK signals are mapped to different frequency regions within a single OFDM symbol zone, when a time zone used for transmitting the multiplexed ACK/NACK signals is the single OFDM symbol zone.

15. The method of claim 12, wherein the multiplexed ACK/NACK signals are mapped to different frequency regions within a plurality of OFDM symbol zones different from each of the plurality of OFDM symbol zones, when a time zone used for transmitting the multiplexed ACK/NACK signals is the plurality of OFDM symbol zones.

16. A method of transmitting signals, the method comprising:

generating N bit control signals by repeating each of ACK/NACK signals;

multiplexing each bits from the N bit control signals by a Code Division Multiple Access (CDMA) scheme at different time-frequency domains per each bits from the N bit control signals within prescribed time-frequency domains; and

transmitting the multiplexed N bit control signals,

wherein the ACK/NACK signals are discriminated by orthogonal or pseudo-orthogonal codes used for multiplexing each bits from the N bit control signals, and

wherein a number of ACK/NACK signals is twice as many as a number of orthogonal or pseudo-orthogonal codes.

17. The method of claim 16, wherein the number of orthogonal or pseudo-orthogonal codes corresponds to a size of the prescribed time-frequency domains.

18. The method of claim 17, wherein the number of ACK/NACK signals multiplexed within the prescribed time-frequency domains is twice as many as a size of the prescribed time-frequency domains.