| 摘要 |
Apparatuses and methods for practising 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 time slots and a fraction of the total number of conversations sharing the channel can be allocated to each time slot. A radio communications device, using such a method, can employ one time slot for transmission and another time slot for reception.
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