Communication system, base station apparatus, communication...

Details Communication system, base station apparatus, communication... Communication system, base station apparatus, communication...

2007-04-10

2007-04-10

Harper, Kevin C. (Department: 2616)

Multiplex communications

Generalized orthogonal or special mathematical techniques

C370S328000, C370S343000, C370S468000, C370S480000

Reexamination Certificate

active

09403312

ABSTRACT:
In carrying out bidirectional communication with a base station device, one frame is prescribed for each predetermined time period Tf and a plurality of time slots are formed in one frame. In slots T1, T2, . . . , Tn of an uplink period Tu, communication of a down link from the base station device to a communication terminal device is carried out by using a multi-carrier signal having data dispersed to m units of subcarriers for transmission (where m is an integer not smaller than 2), and communication of an up link from the communication terminal device to the base station is carried out by using a multi-carrier signal having data dispersed to j units of subcarriers for transmission (where j is an integer smaller than m) or a multi-carrier signal having data dispersed to m units of subcarriers for transmission.

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