05673252 is referenced by 294 patents and cites 36 patents.

A method for communicating data between a central data terminal, a plurality of intermediate data terminals, a plurality of remote cell nodes, and a plurality of network service modules, using a plurality of frames with each frame having a plurality of channels. The plurality of intermediate data terminals transmit IDT-synchronization signals to the plurality of remote cell nodes on a first channel of the frame. The plurality of remote cell nodes transmit RCN-synchronization signals to the plurality of network service modules on a second channel of the frame. The network service modules transmit data from a plurality of physical devices, using radio waves, as NSM-packet signals to the plurality of remote cell nodes using a fourth channel of the frame. The plurality of remote cell nodes store the incoming NSM-packet signals and, responsive to a first polling signal transmitted in a third channel of the frame from a particular intermediate data terminal, transmit the NSM-packet signals to the intermediate data terminal as RCN-packet signals on a fifth channel of the frame. The intermediate data terminal in turn stores the RCN-packet signals received from the plurality of remote cell nodes and, responsive to a second polling signal transmitted from the central data terminal on a sixth channel of the frame, transmits the RCN-packet signals as an IDT-packet signal on a seventh channel of the frame to the central data terminal.

Title
Communications protocol for remote data generating stations
Application Number
480573
Publication Number
5673252
Application Date
May 26, 1995
Publication Date
September 30, 1997
Inventor
Erwin Holowick
Winnipeg
CA
Don Marcynuk
Winnipeg
CA
Dennis F Johnson
Winnipeg
CA
Agent
Patterson & Keough P A
Assignee
Itron
WA, US
IPC
H04J 3/16
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