Patent ID: 6993333
Filing Date: 2006-01-31
Classification: H04L,H04W

Abstract:
1. A method of operating a first base station transmitter, the method comprising: i) operating the first base station transmitter to transmit into a first frequency band during a first period of time during which said first base station transmitter does not transmit into a second frequency band; ii) operating the first base station transmitter to transmit into a second frequency band during a second period of time which is shorter than said first period of time, said first base station transmitting into said second frequency band for a period of time which is less than 1/N the period of time it transmits into said first frequency band, where N is a positive value greater than 2, transmitting into the second frequency band during the second period of time including concentrating at least 60 percent of the transmitted power on one or more tones occupying less than one fifth of the second frequency band; and iii) repeating steps i and ii.