Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Patent
1997-12-10
1999-10-12
Hsu, Alpus H.
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
370342, 370515, 375200, 375365, H04B 7216, H04B 1500, H04J 300, H04L 700
Patent
active
059663731
ABSTRACT:
Disclosed is a method for transmitting information in a CDMA communication system, the method including steps of (a) multiplexing data and control information into a data stream; (b) encoding the data stream to form a stream of encoded I/Q symbol pairs; (c) inserting synchronization information into the stream of encoded I/Q symbol pairs; and (d) spreading the encoded I/Q symbol pairs and the inserted synchronization information using a same pseudonoise (pn) spreading code prior to transmission as a frame. The preferred frame structure includes an unencoded synchronization field followed by a plurality of multi-byte data fields. Individual ones of the plurality of data fields are separated by a control message field. Individual ones of the control message fields contain a single byte of a multi-byte control message frame.
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Butterfield Lee A
Giallorenzi Thomas R
Griffin Dan M.
Harris Johnny M
Hurst Michael J
Hsu Alpus H.
L-3 Communications Corporation
Qureshi Afsar M.
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