Method for Uplink Transmitting Control Information

• US 20110134747A1
• Filed: 08/11/2009
• Published: 06/09/2011
• 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, Han, Seung Hee, Lee, Moon Il, Moon, Sung Ho, Kwon, Yeong Hyeon, Chung, Jae Hoon, Lee, Hyun Woo
• Granted Patent: US 8,681,697 B2
• Time in Patent Office: Days
• US Class Current: 370/208
• CPC Class Codes: H04B 7/0632 Channel quality parameters, e.g. channel quality indicator [CQI]
• CPC Class Codes: H04B 7/0639 Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
• CPC Class Codes: H04L 1/0028 Formatting
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver

Abstract

A method for uplink transmitting control information from a user equipment in a wireless communication system comprises selecting a specific point among a plurality of points distributed into a symbol space, corresponding to control information, the symbol space including a modulation dimension and a sequence dimension; mapping a signal corresponding to the specific point with a control channel including single carrier-frequency division multiple access (SC-FDMA) symbols; and transmitting the control channel. Preferably, the specific point belongs to the sequence dimension.

Claims

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

selecting a specific point among a plurality of points distributed into a symbol space, each point corresponding to control information, the symbol space including a modulation dimension and a sequence dimension;

mapping a signal corresponding to the specific point with a control channel included in a subframe, the subframe including a plurality of single carrier-frequency division multiple access (SC-FDMA) symbols; and

transmitting the control channel.

2. The method of claim 1, wherein the control information includes at least one of acknowledgement/non-acknowledgement (ACK/NACK), a channel quality indicator (CQI), a precoding matrix index (PMI), and a rank indicator (RI).

3. The method of claim 2, wherein the control information is the CQI.

4. The method of claim 1, wherein the specific point belongs to the sequence dimension.

5. The method of claim 1, wherein the modulation dimension includes at least one of phase and amplitude of a signal.

6. The method of claim 5, wherein the modulation dimension includes n-PSK (phase shift keying), or n-QAM (Quadrature Amplitude Modulation), n indicating 8, 16, 32, or 64.

7. The method of claim 1, wherein the sequence dimension includes orthogonal sequence, quasi-orthogonal sequence, or pseudo noise (PN) sequence.

8. The method of claim 7, wherein the sequence dimension includes Zadoff-Chu (ZC) sequence, constant amplitude zero autocorrelation waveform (CAZAC) sequence, walsh sequence, and discrete fourier transform (DFT) sequence.

9. The method of claim 1, wherein the symbol region further includes a frequency dimension.

10. The method of claim 9, wherein the frequency dimension includes a subcarrier group, a channel, a subband, or a hopping pattern.

11. The method of claim 1, wherein the subframe comprises two slots, and the control channel is generated on one resource block per slot.

12. The method of claim 11, wherein the two slots use resource blocks located in different locations of the frequency region.

13. The method of claim 1, wherein the user equipment receives a service from an arbitrary node that can be optionally turned on/off.

14. The method of claim 13, wherein the arbitrary node includes a femto cell or pico cell.