Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Patent
1996-09-27
1999-04-06
Pham, Chi H.
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
370342, 34087002, 379106, H04B 7216
Patent
active
058927581
ABSTRACT:
A concentrated subscriber wireless remote telemetry system which uses low-cost remote communication devices operating on existing wireless communication systems in order to provide real-time reading and control of remote devices. The metering system comprises at least one powerline remote metering device which collects and forwards telemetry data to an associated wireless remote telemetry device. The wireless remote telemetry device relays the telemetry data to a central controller over existing wireless communication systems, such as cellular base stations, using existing communication standards. The wireless remote metering device transmits various messages over a shared random access channel to the central controller. The central controller transmits messages to the wireless remote metering unit over a paging channel. The wireless remote metering unit may operate in a half-duplex mode only. Furthermore, the wireless remote metering unit may provide a gateway to advanced consumer services at the remote location.
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Brown Charles D.
Martin Roger W.
Miller Russell B.
Nguyen Steven
Pham Chi H.
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