PERSONAL COMMUNICATIONS DEVICE FOR MULTIPLE COMMUNICATIONS SYSTEMS

摘要

A portable communications device (PCD) for communications with two or more communications systems including a power unit, a transceiver unit and a control unit. The power unit is for powering the communications device so as to enable it to be portable. The transceiver unit includes a local unit for communicating with a local communications system and a satellite unit for communicating with a satellite communications system. The control unit is for controlling communications by the local unit and the satellite unit. The control unit includes a sensing algorithm for sensing requests for communications, a selection algorithm for automatically selecting the local unit or the satellite unit for communications. A software controlled transceiver unit is used together with parameter algorithms for automatically controlling communications and modifying the system budget.

主权项

1. A portable communications device (PCD) for communications with two or more communications systems comprising,
a power unit for powering the portable communications device, a transceiver unit including,
a local unit for communicating with a local communications system,a satellite unit for communicating with a satellite communications system, a control unit for controlling communications by the local unit and the satellite unit, the control unit including,
a sensing algorithm for sensing requests for communications,a selection algorithm for automatically selecting the local unit or the satellite unit for communications.