Gradual frequency plan revision methodology

Details Gradual frequency plan revision methodology Gradual frequency plan revision methodology

H - Electricity

04

Q

H04Q 7/36 (2006.01) H04Q 7/34 (2006.01)

Patent

CA 2362421

Utilizing a sequential local search optimization algorithm (30), a determination is made of the cell/transceiver retunes (32) needed to implement, given a current frequency plan, a better frequency plan for a certain cellular communications system. Each of the individual cell/transceiver retunes is evaluated (34) to determine if it meets certain save criteria, and if so, is saved as an intermediate frequency plan (74) in a sequence of saved intermediate frequency plans necessary to migrate from the current frequency plan to the determined near-optimal frequency plan. A sequential implementation (36) of these intermediate frequency plan revisions is then made to gradually reach, in a known and controlled manner, the better frequency plan.

A l'aide d'un algorithme d'optimisation de recherche locale s~quentielle (30), on d~termine les r~accords cellule/~metteur (32) n~cessaires pour appliquer, ~ partir d'un plan de fr~quences courant, un meilleur plan de fr~quences pour un certain syst­me de communication cellulaire. Chacun des r~accords cellule/~metteur est ~valu~ (34) pour d~terminer s'il satisfait ~ certains crit­res enregistr~s. Dans l'affirmative, il est enregistr~ comme un plan de fr~quences interm~diaire (74) dans une s~quence de plans de fr~quences interm~diaires m~moris~s n~cessaires pour migrer d'un plan de fr~quences courant ~ un plan de fr~quences optimal proche d~termin~. Ensuite, on r~alise une application s~quentielle (36) de ces r~visions de plans de fr~quences interm~diaires pour obtenir graduellement, d'une mani­re connue et contrÙl~e, le meilleur plan de fr~quences.

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