1
Kenneth A Felix, Alton P Werronen, Thomas B Hart, Scott A Hardman, Thomas G Hulsebosch: Radio telephone system incorporating multiple time periods for communication transfer. Motorola, Richard A Sonnentag, Raymond A Jenski, Raymond J Warren, April 13, 1993: US05203010 (117 worldwide citation)

A cellular radiotelephone system transfers a call from a source base-site (200) to one target base-site (205,210). A source base-site (200) in the first RF coverage area (100) measures the signal strength (RSSI.sub.S) of a mobile (225), provides a forecasted signal strength (RSSI.sub.F) representing ...


2
Thomas G Hulsebosch: Target channel verification in a radiotelephone system. Motorola, Richard A Sonnentag, Raymond A Jenski, February 8, 1994: US05285447 (29 worldwide citation)

A radiotelephone system verifies the carrier/interference (C/I) of a selected target channel before handoff. The subscriber (125), communicating to a source base-station (130) on a source channel, measures the received signal strength indication (RSSI) of a target channel at a target base-station (1 ...


3
Thomas G Hulsebosch: Method and apparatus for measuring idle channel quality in an RF frequency sharing environment. Motorola, Kenneth A Haas, September 8, 1998: US05805982 (21 worldwide citation)

A method of measuring idle channel quality which includes the steps of performing a first signal quality measurement (200), comparing the measurement to a threshold (202), and keying the channel (204) in response to the comparison (202) when the signal quality measurement exceeds the threshold. An a ...


4
Thomas G Hulsebosch: Enhanced power level usage in a radiotelephone system. Motorola, Richard A Sonnentag, November 29, 1994: US05369786 (8 worldwide citation)

A radiotelephone system allows a subscriber unit (125) to transmit above a predetermined maximum power level. The maximum power level is set at a source base-station (130) and corresponds to the maximum power level a subscriber unit (125) can transmit at without subjecting neighboring target base-st ...


5
Thomas G Hulsebosch: Method and apparatus to mitigate interference caused by an overlay communication system. Motorola, Kenneth A Haas, September 1, 1998: US05802456 (6 worldwide citation)

A method and apparatus for mitigating interference in a communication system caused by an overlay system. The overlay system and the communication system utilize preferred channels (201-207). The communication system first utilizes a group of communication "preferred" channels (205 and 207) when ass ...


6
Thomas G Hulsebosch, Bruce Duysen: Method of allocating a new frequency plan in a communication system. Motorola, Jeffrey G Toler, Raymond J Warren, February 6, 1996: US05490137 (3 worldwide citation)

A new frequency plan is allocated in a communication system by first comparing (30) the channels in the old frequency plan with the channels in the new frequency plan to identify any problem channels that may exist (31). The system then attempts to clear any problem channels by reassigning (14) mobi ...