Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2005-05-31
2005-05-31
Tse, Young T. (Department: 2637)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S144000, C375S148000, C375S150000, C375S342000, C375S343000, C375S356000, C375S152000, C375S143000
Reexamination Certificate
active
06901104
ABSTRACT:
A wireless network is disclosed including at least one base station and a plurality of assigned terminals for exchanging user data and control data. The base station is arranged for transmitting the start time of at least one signaling sequence of at least terminal. For evaluating the signaling sequences transmitted by the terminals, the base station includes a device for correlating a received signaling sequence and for detecting the pulse evolving from a received and correlated signaling sequence. A terminal generates a signaling sequence by folding two code sequences.
REFERENCES:
patent: 5699389 (1997-12-01), Beladi et al.
patent: 6356607 (2002-03-01), Scott et al.
patent: 6504835 (2003-01-01), Menzel et al.
patent: 6546062 (2003-04-01), Du et al.
patent: WO 9823104 (1998-05-01), None
Du Yonggang
Herrmann Christoph
Koninklijke Philips Electronics , N.V.
Lugo David B.
Tse Young T.
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