Patent ID: 6442143
Filing Date: 2002-08-27
Classification: H04B,H04L

Abstract:
A method for maintaining the quality of a signal transmission over a signal path extending between a pair of stations, said method comprising the steps of;sensing the strength of at least a portion of the received signal resulting from traversal of said path in a first direction, deerning the signal not to have faded if the signal level remains above a predetermined threshold, and deeming the signal to have faded if the signal level drops below said predetermined threshold; estimating the signal quality of said received signal, and deeming the signal to be of poor quality if the quality drops below a predetermined threshold; if the signal level is indicative of a fade, and the signal quality is poor, maintaining the same information rate while increasing the coding gain in at least said first direction; if the signal level is not indicative of a fade, and the signal quality is poor, deeming the poor signal quality to be attributable to interference, and changing at least one of the slot and the frequency of the channel, while maintaining the bearer rate and coding.