Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2000-05-31
2008-10-28
Burd, Kevin M (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
Reexamination Certificate
active
07443906
ABSTRACT:
A method for converting source data to a channel-modulated signal having a plurality of pairs of in-phase (I) and quadrature-phase (Q) data in a mobile station, wherein the mobile station uses at least one channel, includes the steps of: a) encoding the source data to generate at least one data part and a control part; b) generating at least one spreading code to be allocated to the channel, wherein each spreading code is selected on the basis of a data rate of the data part and the control part and spreading codes are selected so that two consecutive pairs of the I and Q data are correspondent to two points located on same point or symmetrical with respect to a zero point on a phase domain; and c) spreading the control part and the data part by using the spreading code, to thereby generate the channel-modulated signal. The method is capable of improving a power efficiency of a mobile station by reducing a peak-to-average power ratio in a mobile communication system.
REFERENCES:
patent: 5416797 (1995-05-01), Gilhousen et al.
patent: 5546424 (1996-08-01), Miyake
patent: 5566164 (1996-10-01), Ohlson
patent: 5602833 (1997-02-01), Zehavi
patent: 5619526 (1997-04-01), Kim et al.
patent: 5638362 (1997-06-01), Dohi et al.
patent: 5734647 (1998-03-01), Yoshida et al.
patent: 5818867 (1998-10-01), Rasmussen et al.
patent: 5870378 (1999-02-01), Huang et al.
patent: 5930230 (1999-07-01), Odenwalder et al.
patent: 5966373 (1999-10-01), Stephenson et al.
patent: 5991284 (1999-11-01), Willenegger et al.
patent: 6009091 (1999-12-01), Stewart et al.
patent: 6028888 (2000-02-01), Roux
patent: 6047306 (2000-04-01), Hikita et al.
patent: 6097712 (2000-08-01), Secord et al.
patent: 6108369 (2000-08-01), Ovesjo et al.
patent: 6122310 (2000-09-01), Ziemer et al.
patent: 6246697 (2001-06-01), Whinnett et al.
patent: 6246976 (2001-06-01), Mukaigawa et al.
patent: 6381229 (2002-04-01), Narvinger et al.
patent: 6519278 (2003-02-01), Hiramatsu
patent: 6560194 (2003-05-01), Gourgue et al.
patent: 0 783 210 (1997-07-01), None
patent: 0814581 (1997-12-01), None
patent: 0155510 (1998-07-01), None
patent: 10-0298340 (2001-05-01), None
patent: WO92/17011 (1992-10-01), None
patent: WO95/03652 (1995-02-01), None
patent: WO95/12937 (1995-05-01), None
patent: WO-97/33400 (1997-09-01), None
patent: WO-97/45970 (1997-12-01), None
patent: WO97/47098 (1997-12-01), None
Shim, et al.;Spectrally Efficient Modulation and Spreading Scheme for CDMA Systems;Nov. 12, 1998 Electronics Letters; vol. 34, pp. 2210-2211.
JaeRyong Shim and SeungChan Bang; Spectrally efficient modulation and spreading scheme for CDMA systems;Elctronics Letters;Nov. 12, 1998; vol. 34, No. 23 ; pp. 2210-2211.
Edited by Matsushita;UTRA Physical Layer Description, TDD parts for public operation; Layer 1 Expert Group meeting, Bocholt May 18-20; Nov. 13, 1998; pp. 1-27.
CSEM/Pro Telecom, et al., “FMA-Frames Multiple Access A Harmonized Concept for UMTS/IMT-2000; FMA2-Wideband CDMDA”, Homepage: http:WWW.de.infowin.org/ACTS/RUS/PROJECTS/FRAMES, pp. 1-14.
Birgenheier, Raymond a.; “Overview of Code-Domain Power, Timing, and Phase Measurements”; Hewlett-Packard Journal: vol. 47, No. 1, pp.73-93; (Feb. 1996).
Ericsson, “Uplink channelization code allocation in UTRA/FDD, Decision”, TSG-RAN Working Group 1 meeting #6, TSGR 1#6(99)845, Espoo, Finland, Jul. 13-16, 1999, pp. 1-6.
ETRI, “Channelization code allocation in uplink multi-code transmissions. Decision”, TSG-RAN Working Group 1 meeting #6, TSGR 1#6(99)826, Espoo, Finland, Jul. 13-16, 1999, pp. 1-6.
3rdGeneration Partnership Project (3GPP), Technical Specification Group (TSG), Radio Access Network (RAN); Working Group 1 (WG1); Spreading and Modulation (FDD), TS 25.213, V2.0.0 (Apr. 1999), pp. 1-26.
3rdGeneration Partnership Project (3GPP), Technical Specification Group (TSG), Radio Access Network (RAN); Working Group 1 (WG1); Spreading and Modulation (FDD), TS 25.213, V2.1.0 (Jun. 1999), pp. 1-26.
Bang Seung-Chan
Chae Jong-Suk
Kim Jae-Heung
Kim Jung-Im
Kim Tae-Joong
Burd Kevin M
Electronics and Telecommunications Research Institute
Hunton & Williams LLP
LandOfFree
Apparatus and method for modulating data message by... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for modulating data message by..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for modulating data message by... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4016016