Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2006-07-14
2011-11-01
Edouard, Patrick (Department: 2617)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S342000, C370S343000, C370S344000, C370S345000
Reexamination Certificate
active
08050236
ABSTRACT:
A wireless communication system is disclosed comprising a communications network; and a plurality of base transceiver stations (BTS) coupled to the communications network. At one of the BTS is adapted to send traffic data modulated onto orthogonal frequency division multiplexing (OFDM) tones to mobile units, and send control data modulated onto code division multiplexing (CDM) codes to the mobile units. The BTS may be further adapted to send pilot data modulated onto OFDM tones to the mobile units. The transmission of the data may be compatible with HSDPA and/or IP Wireless protocols. Because the modulation scheme for the traffic data is OFDM instead of CDM, higher throughputs may be achieved in an HSDPA and/or IP Wireless-based wireless communication systems.
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Edouard Patrick
Ho Huy
Nextel Communications Inc.
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