Communications: electrical – Continuously variable indicating – With meter reading
Patent
1986-02-18
1988-03-08
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
455 33, 379 60, H04Q 900
Patent
active
047301872
ABSTRACT:
The method and apparatus for interfacing between a cell site controller, a cell system controller, and the radio transceivers of a cellular radiotelephone system is disclosed. To convey control information to the radio transceivers, the cell site controller enables one of a redundant pair of control data buses to a selected transceiver by placing an enable signal on the enable line unique to the selected transceiver. Control data is then coupled to the common enabled control data bus for conveyance to the selected transceiver. The transceiver mutes the message data port it may be using and transponds the control data information it receives. When the enable signal is removed, the transceiver unmutes the message data port. Program information is transferred between the cell system controller and cell site controllers as memory blocks which may be retransferred upon detection of a checksum mismatch.
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Bonta Jeff D.
Lev Valy
Menich Barry J.
Tayloe Daniel R.
Wood Daniel E.
Hackbart Rolland R.
Jenski Raymond A.
Motorola Inc.
Yusko Donald J.
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