Cellular network handoff modeling

Details Cellular network handoff modeling Cellular network handoff modeling

2007-02-20

2007-02-20

Urban, Edward F. (Department: 2618)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S443000, C370S331000

Reexamination Certificate

active

10670467

ABSTRACT:
Disclosed is a system for evaluating the performance of cellular network handoff decisions. One embodiment of this system includes the steps of: creating a reference cellular network description; creating reduced geometric structures from the reference cellular network description; representing a general trajectory for a mobile unit in the reference cellular network description; approximating the general trajectory with a piecewise path having a multitude of handoff decision points; selecting a handoff mechanism; selecting handoff parameters; creating a discrete-time formulation characterizing handoff behaviors; and calculating at least one handoff performance metric. The handoff performance metrics may include assignment probabilities; handoff probabilities; a mean number of handoff value; a crossover point; and overall signaling load incurred by a handoff mechanism.

REFERENCES:
patent: 6597673 (2003-07-01), Nobuyasu et al.
patent: 6711408 (2004-03-01), Raith
patent: 2005/0048978 (2005-03-01), Santhoff et al.
patent: 2005/0079878 (2005-04-01), Smith et al.

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