Method of improving efficiency of radio channel usage in overlap

Details Method of improving efficiency of radio channel usage in overlap Method of improving efficiency of radio channel usage in overlap

1996-12-04

1999-06-22

Hsu, Alpus H.

Multiplex communications

Communication over free space

Repeater

370321, 370354, 471 381, 471 391, 455 131, G06F 1100, H04B 7185, H04B 7216, H04J 1302

Patent

active

059149442

ABSTRACT:
A method is described for transmitting a signal over a wireless communications channel, the communications channel being common to primary and secondary communications systems that have at least partially overlapping areas of coverage. The primary system has a low duty cycle and transmits random bursts having a characteristic first duration. The method involves transmitting bursts on the secondary system, which have a duration at least equal to three times the first duration and contain forward error correcting codes to permit data contained therein to be recovered in the event of a collision with a burst on the primary system. The bursts on the secondary system have an intensity sufficiently below the intensity of the bursts on the primary system to avoid interference therewith.

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