Method and device for effective data radio transmission

Details Method and device for effective data radio transmission Method and device for effective data radio transmission

2006-07-18

2006-07-18

Nguyen, Chau (Department: 2661)

Multiplex communications

Duplex

Communication over free space

C370S337000, C370S347000

Reexamination Certificate

active

07079496

ABSTRACT:
The invention relates to a method and a device for digital data radiotransmission between a fixed station (1) and at least one mobile station (2, 3) at one or several carrier frequencies (F1, F2. . . ), wherein the data is transmitted in several time slots (Z1, Z2. . . ) according to the time-multiplex technique. A specific amount of time is required to change from one carrier frequency to another carrier frequency using a slow-hopping HF module. The data is transmitted in an active followed by an inactive time slot during which no data is transmitted and which is sufficient for the HF module to program the frequency for the following active time slot. According to the invention, an inactive time slot is shorter than an active time slot.

REFERENCES:
patent: 5390166 (1995-02-01), Rohani et al.
patent: 5452115 (1995-09-01), Tomioka
patent: 6434183 (2002-08-01), Kockmann et al.
patent: 2001/0043583 (2001-11-01), Sakoda et al.
patent: 0 767 551 (1997-04-01), None
patent: 2 295 930 (1996-06-01), None
Rasky et al., “Slow Frequency-Hop TDMA/CDMA for Macrocellular Personal Communications”, IEEE Personal Communications, pp. 26-35.

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