Pilot signal in an FDMA communication system

Details Pilot signal in an FDMA communication system Pilot signal in an FDMA communication system

2011-08-16

2011-08-16

Cho, Un C (Department: 2617)

Multiplex communications

Generalized orthogonal or special mathematical techniques

Fourier transform

C370S208000, C370S537000, C370S319000, C455S067160, C455S131000, C455S070000, C708S403000, C708S404000, C708S421000, C708S290000

Reexamination Certificate

active

08000228

ABSTRACT:
Methods (500, 800) and corresponding systems (100, 200, 300, 400, 900) for generating a pilot symbol (330) include providing an M-point parallel transform sequence that is a discrete Fourier transform of a CAZAC sequence (312, 504-508). The M-point parallel transform sequence (312) is distributed (316, 510) to a set of M subcarriers among N subcarriers to form an N-point frequency-domain sequence (318) wherein the M subcarriers are evenly spaced apart. An N-point inverse fast Fourier transform (320, 512) is performed to convert the N-point frequency-domain sequence to an N-point time-domain sequence (322). The N-point time-domain sequence is converted (324, 514) to a serial sequence (326), and a cyclic prefix is added (328, 516) to the serial sequence to form a pilot symbol (330).

REFERENCES:
patent: 6937558 (2005-08-01), Wakutsu
patent: 2004/0240569 (2004-12-01), Rudowicz et al.
patent: 2005/0099939 (2005-05-01), Huh et al.
patent: 2005/0157801 (2005-07-01), Gore et al.
patent: 2007/0004465 (2007-01-01), Papasakellariou et al.
patent: 2007/0041311 (2007-02-01), Baum et al.
patent: 2007/0041404 (2007-02-01), Palanki et al.
patent: 2007/0183386 (2007-08-01), Muharemovic et al.
Texas Instruments, Uplink Pilot in EUTRA SC-FDMA, San diego, USA, R-051062, Oct. 10, 2005.
Popovic; Generalized Chirp-Like Polyphase Sequences With Optimum Correlation Properties; IEEE, vol. 38, No. 4 Jul. 1992, pp. 1406-1409.
On Allocation of Uplink Pilot Sub-Channels in EUTRA SC-FDMA; TX Instruments; London, UK; Aug. 29-Sep. 2, 2005 R1-050822.
On Uplink Pilot in EUTRA SC-FDMA; TX Instruments; Sandiego, USA;Oct. 10-14, 2005; R1-051062.
Consideration on SC-FDMA Pilot Design; Freescale Semiconductor; Seoul Korea; Nov. 7-11, 2005; Tdoc R1-051370.
Consideration on SC-FDMA Pilot Design; Freescale Semiconductor; Seoul Korea; Nov. 7-11, 2005; Tdoc R1-051557.
EUTRA SC-FDMA Uplink Pilot/Reference Signal Design & TP; Motorola; Athens Greece; Mar. 27-31, 2006 R1-060878 p. 1-5.

Affiliated with

Also associated with

Rating

Pilot signal in an FDMA communication system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pilot signal in an FDMA communication system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pilot signal in an FDMA communication system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2681993