Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2006-03-14
2006-03-14
Lee, Andy (Department: 2663)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S509000, C375S149000, C375S150000
Reexamination Certificate
active
07012906
ABSTRACT:
The frame words of the preferred embodiment are especially suitable for frame synchronization and/or channel estimation. By adding the autocorrelation and cross-correlation functions of frame words, double maximum values equal in magnitude and opposite polarity at zero and middle shifts are obtained. This property can be used to slot- by-slot, double-check frame synchronization timing, single frame synchronization and/or channel estimation and allows reduction of the synchronization search time. Further, the present invention allows a simpler construction of a correlator circuit for a receiver.
REFERENCES:
patent: 5774462 (1998-06-01), Ishikawa et al.
patent: 5812593 (1998-09-01), Kaku
patent: 5889768 (1999-03-01), Storm et al.
patent: 5901180 (1999-05-01), Aslanis et al.
patent: 5978416 (1999-11-01), Watanabe et al.
patent: 5982763 (1999-11-01), Sato
patent: 6128486 (2000-10-01), Keskitalo et al.
patent: 6356605 (2002-03-01), Hosur et al.
patent: 6480526 (2002-11-01), Shoki et al.
patent: 10-505477 (1998-05-01), None
patent: 10327126 (1998-12-01), None
patent: WO 95/34154 (1995-05-01), None
patent: WO 97/02666 (1997-01-01), None
patent: WO 00/00912 (1998-06-01), None
patent: WO 00/05902 (1999-07-01), None
TS S1.11 V1.1.0, Mar. 1999, 3GPP “Physical Channels and Mapping of Transport Channels onto Physical Channels”, pp. 1-33.
TS 25.211 V2.0.1, Jun. 1999, 3GPP “Physical Channels and Mapping of Transport Channels onto Physical Channels”, pp. 1-41.
Kohno, Ryuji, Hideki Imai, Mitsutoshi Hatori, and Subbarayan Pasupathy, “Combination of an Adaptive Array Antenna and a Canceller or Interference for Direct-Sequence Spread-Spectrum Multiple-Access System,” IEEE Journal on Selected Areas in Communications vol. 8, No. 4, May 1990, pp. 675-682.
Kammeyer, K.D., “Nachrictenübertragung,” B.G. Teubner, Stuttgart, 1996, ISBN 3-519-16142-7, pp. 621-632.
Fleshner & Kim LLP
Lee Andy
LG Information & Communications Ltd.
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