Sectorized cellular mobile radio system with sector signalling a

Telecommunications – Transmitter and receiver at separate stations

Patent

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455 341, 455 531, H04Q 700

Patent

active

057747903

ABSTRACT:
A cellular mobile radio system comprises cells divided into P sectors each having its own timebase. The system uses time division multiple access and accordingly transmission is effected in bursts each transmitted during a time slot, or channel time slot, of predetermined rank relative to a reference of the timebase of the sector concerned. N time slots form a frame which repeats periodically. A control channel is reserved for each sector for transmitting signalling and control data, a different control channel being associated with each sector. The timebase of each sector is shifted a predetermined number of time slots relative to the timebases of the other sectors of the same cell. The offsets are such that the control channels relating to each sector are conveyed at different times.

REFERENCES:
patent: 5185739 (1993-02-01), Spear
patent: 5228029 (1993-07-01), Kotzin

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