Telecommunications – Transmitter and receiver at separate stations – Single message via plural carrier wave transmission
Patent
1990-11-02
1994-01-04
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at separate stations
Single message via plural carrier wave transmission
455 331, 455 541, 455 671, H04B 726
Patent
active
052769119
ABSTRACT:
In a cellular radiotelephone communication system, there is provided a method and apparatus for reducing contention between a plurality of mobile units requesting system resources comprising the steps of A) receiving access requests from at least one of the plurality of mobile units, B) determining the number of attempted access requests (access request count); and C) altering system resources as a function of the access request count in order to reduce the likelihood of contending mobile units. An alternative embodiment suggests deriving timing advance information as well as access request count, correlating the access request count to the timing advance information, and altering system resources as a function of the correlation in order to reduce the likelihood of contention. Yet another embodiment suggests that the mobile unit take independent action, based upon its access request count, in order to reduce the likelihood of contention.
REFERENCES:
patent: 4887265 (1989-12-01), Felix
patent: 4905302 (1990-02-01), Childress et al.
Dominiak Douglas C.
Flanders Mary B.
Levine Stephen N.
Eisenzopf Reinhard J.
Hillman Val Jean F.
Motorola Inc.
Pham Chi
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