TDMA radio terminal capable of adjusting transmit timing by...

Details TDMA radio terminal capable of adjusting transmit timing by... TDMA radio terminal capable of adjusting transmit timing by...

2006-02-14

2006-02-14

Ho, Duc (Department: 2665)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S519000

Reexamination Certificate

active

06999440

ABSTRACT:
A TDMA radio terminal comprises a transmitter portion and a receiver portion. A reference signal is launched in the transmitter portion while tuning the receiver portion. At the same time, an internal delay counter is started. The counter counts clock pulses till the reference signal returns through the receiver portion. Letting this pulse count be Nd, a transmission wait time is Nt−Nd. Nt is a transmit timing at the antenna. The Nd counting operation may be triggered by a power on or a signal from a controller. Method for determining the transmission wait time in the production site is also disclosed.

REFERENCES:
patent: 4346470 (1982-08-01), Alvarez et al.
patent: 5363373 (1994-11-01), Nakahara et al.
patent: 5379299 (1995-01-01), Schwartz
patent: 6463049 (2002-10-01), Abe et al.
patent: 0 690 593 (1996-01-01), None
patent: 0 911 993 (1999-04-01), None
patent: WO 96 13914 (1996-05-01), None

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