Radio telecommunication system

Multiplex communications – Wide area network – Packet switching

Patent

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Details

455 69, 375285, H04B 7212

Patent

active

054369061

ABSTRACT:
A radio telecommunication system has radio channels, each radio channel including a plurality of slots generated by time division. The system encompasses a plurality of areas having a base station which sends a first signal over a predetermined slot of the slots. If the signal quality of the first signal received by a portable apparatus is less than a criterion, at last on of the non-used slots is designated. The portable apparatus sends a second signal over the predetermined slot and the designated slot.

REFERENCES:
patent: 4797947 (1989-01-01), Labedz
patent: 5128965 (1992-07-01), Henriksson
patent: 5323446 (1994-06-01), Kojima et al.
EIA/TIA Interim Standard--Cellular System Dual-Mode Mobil Station--Base Station Compatability Standard, Apr. 1992, pp. 59-66.

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