Telecommunications – Transmitter and receiver at separate stations
Patent
1993-10-04
1995-12-12
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at separate stations
455 561, 455 541, 455 531, 455 512, 379 59, 34082544, H04B 700
Patent
active
054758637
ABSTRACT:
A method of locating a portable communication unit (108) having a transmitter (852) for transmitting acknowledge back signals, consists of the steps of transmitting, to the portable communication unit (108) from the communication cell transmitters (104), an information signal which consists of a predetermined color code word which identifies a subset of the communication cells (500) for which radio coverage does not overlap; receiving an acknowledge back signal from the portable communication unit (108) consisting of a reported color code value determined from the color code word transmitted in the information signal; and analyzing the reported color code value to determine a cell location of the portable communication unit (108). The portable communication unit (108) operates within a radio communication system consisting of communication cells (500) and a paging terminal (110), wherein the communication cells (500) consist of transmitters (104) for transmitting information signals intended for reception by the portable communication unit (108).
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Lee, W., Mobile Cellular Telecommunications Systems, 1989 pp. 78-79.
Huang Jian C.
Simpson Floyd
Willard David F.
Eisenzopf Reinhard J.
Lamb James A.
Motorola Inc.
To Doris
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