Motorola Corporation

Kenneth J. Crisler

Anthony Patrick Van Den Heuvel

Theodore Saltzberg

Lawrence M. Mohl

Daehyoung Hong

Michael Dale Kotzin

Michael D Kotzin

Thomas V D'Amico

Kenneth J Crisler

Anthony P Van Den Heuvel

Brian K Johnson

Lawrence M Mohl

A TDMA communication system (100) comprises a two-way subscriber unit (112') and at least two base stations (104b and 104c). The subscriber unit monitors the strengths of signals (114') received from the base stations. As the subscriber unit roams within the area serviced by the communication system, the received signal strength will vary as the subscriber unit moves nearer to or farther from the base station that is transmitting the call. When the subscriber unit moves out of the range of the base station, the subscriber unit determines, based on certain predetermined criteria, with which base station to communicate.

Channel acquistion and handoff method and apparatus for a TDMA

A communication system that provides TDM and FDM communications between communication units. At least two control slots are provided in each TDM frame window to provide communication control information such as channel assignment information.

Multiple control slot TDM/FDM communication system

Growing community of inventors

Chicago, IL, United States of America

Theodore Saltzberg