Multiplex communications – Wide area network – Packet switching
Patent
1994-09-09
1996-01-16
Marcelo, Melvin
Multiplex communications
Wide area network
Packet switching
3701101, 34082544, 34082549, 455 381, H04Q 712
Patent
active
054854636
ABSTRACT:
A time-division multiplexed paging system for transmitting multiple paging messages on the same frequency. A geographic area is divided into a plurality of cells having base stations that transmit radio frequency signals in the cells. Each base station is assigned a time slot at which paging messages may be transmitted. The assignment is made such that no base stations having overlapping radio frequency coverage areas transmit during the same time. A locate signal is simultaneously broadcast throughout a geographic area in order to locate a paging unit. Upon receipt of the locate signal, the paging unit transmits an acknowledge signal back to the paging system. The cell in which the paging unit is located is determined based upon the signal strength of the received acknowledged signal. A paging message is transmitted from the base station in the cell in which the paging unit is located during the time slot that is assigned to the base station.
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Glenayre Electronics, Inc.
Marcelo Melvin
LandOfFree
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