Patent ID: 7304963

Claim:
A method for switching between multiple communication channels in a network of transceiver nodes spread over a predetermined geographic area, the method comprising the steps of: providing a plurality of communication channels; defining a recurring TDMA frame that consists of a specified number of timeslots, wherein each timeslot of said recurring TDMA frame has a unique identification number; defining for each transceiver node a common function that assigns one communication channel from said plurality of communication channels to a given input combination, wherein said given input combination comprises a timeslot identification number uniquely identifying a timeslot in said recurring TDMA frame, and a set of space coordinates uniquely identifying a location within said predetermined geographic area; and performing the following steps for each one of said transceiver nodes: periodically obtaining the identification number of a current timeslot within said recurring TDMA frame; periodically identifying the set of space coordinates uniquely identifying the current location of said each one of said transceiver nodes; and switching said each one of said transceiver nodes to the communication channel assigned by said common function to the input combination comprising the periodically obtained identification number of a current timeslot within said recurring TDMA frame and the periodically identified set of space coordinates uniquely identifying the current location of said each one of said transceiver nodes.