<p>A two-way communication system for communication between a system network and a mobile unit. The system network includes a plurality of base transmitters and base receivers included in the network. The base transmitters are divided into tonal assignments and broadcast in simulcast using multi-carrier modulation techniques. The system network controls the base transmitters to broadcast in simulcast during both systemwide and tonal time intervals. The system network dynamically alters zone boundaries to maximize information throughput. The system also uses a mobile unit which receives messages from the network and transmits messages to the network. The mobile unit includes a switch that allows a user to request the network to retransmit a received message that contains errors.</p>
申请公布号
CA2442424(A1)
申请公布日期
1994.05.26
申请号
CA19932442424
申请日期
1993.11.12
申请人
MOBILE TELECOMMUNICATION TECHNOLOGIES
发明人
ROEHR, WALTER CHARLES JR.;CAMERON, DENNIS WAYNE;PETROVIC, RADE;BHAGAT, JAI P.;GARAHI, MASOOD;ACKERMAN, DAVID W.;HAYS, WILLIAM D.