Telecommunications – Carrier wave repeater or relay system – Portable or mobile repeater
Patent
1992-05-11
1995-06-06
Eisenzopf, Reinhard J.
Telecommunications
Carrier wave repeater or relay system
Portable or mobile repeater
455 332, 455 541, 455 62, H04Q 736
Patent
active
054230845
ABSTRACT:
A controller operates with a cellular communication system that transmits primary communications. The controller recovers a portion of the spectrum assigned to the primary communications for reuse in transmitting secondary communications. The primary communications' cells move in a predictable manner relative to a site at which the controller is located. The controller monitors primary communications to determine the current active cell. The identities of past active cells are saved so that a historical sequence of active cells is available. A map defining the relative orientation of cells is used with the historical sequence information to predict tracks through newly entered active cells. Based on this prediction, a recoverable cell is selected. Communication link parameters of the recoverable cell are used for secondary communications. The identity of the recoverable cell changes in response to changes in the identity of the active cell.
REFERENCES:
patent: 4578815 (1986-03-01), Persinotti
patent: 5019317 (1991-04-01), Schwendeman et al.
patent: 5161248 (1992-11-01), Bertiger et al.
patent: 5239671 (1993-08-01), Linquist et al.
patent: 5276908 (1994-01-01), Koohgoli
Eisenzopf Reinhard J.
Handy Robert M.
McGurk IV Harold C.
Motorola Inc.
Sobutka Philip J.
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