Subtractive multicarrier CDMA access methods and systems

Details Subtractive multicarrier CDMA access methods and systems Subtractive multicarrier CDMA access methods and systems

1996-02-29

1998-08-04

Olms, Douglas W.

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via code word channels

370320, 370335, 370342, 375205, H04J 1300

Patent

active

057905495

ABSTRACT:
Apparatuses and methods for practicing subtractive multi-carrier CDMA techniques are disclosed. A channel is divided into a plurality of contiguous subchannels, wherein in each subchannel an amount of spreading is reduced in accordance with the number of subchannels. The channel can be divided into a Plurality of timeslots and a fraction of the total number of conversations sharing the channel can be allocated to each timeslot. A radio communications device, using such a method, can employ one timeslot for transmission and another time slot for reception.

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