Patent ID: 8078101
Filing Date: 2011-12-13
Classification: H04B,H04Q,H04W

Abstract:
1. A satellite radiotelephone system comprising: a space-based component that is configured to communicate with radiotelephones; and a wireless terrestrial network that is configured to transmit wireless communications to a radiotelephone over an uplink satellite radiotelephone frequency and to receive wireless communications from the radiotelephone over the uplink satellite radiotelephone frequency; wherein the wireless terrestrial network is further configured to communicate with the radiotelephone in a time-division duplex mode, wherein a first time interval is used to transmit wireless communications to the radiotelephone over the uplink satellite radiotelephone frequency and wherein a second time interval, that does not overlap with the first time interval, is used to receive wireless communications from the radiotelephone over the uplink satellite radiotelephone frequency.