Directing a subscriber toward a destination within an SDMA mobil

Details Directing a subscriber toward a destination within an SDMA mobil Directing a subscriber toward a destination within an SDMA mobil

1996-06-27

1998-02-24

Crosland, Donnie L.

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

455425, 340990, 3644441, 3644493, 3644495, H04B 100, G01C 2100

Patent

active

057220832

ABSTRACT:
A process for directing a subscriber toward a destination within an SDMA mobile radio network, and a processor-controlled facility (BSC) which operates accordingly are proposed. This facility contains a communications interface unit (IF1) for receiving a message that specifies a destination (DES) desired by a subscriber, and a microprocessor which determines the current location (LOC) of the subscriber by evaluating directional and distance information (.alpha., R). The processor-controlled facility (MSC) furthermore contains communications interface unit (IF2) whereby it retrieves information (INFO) from a data base (DB), which defines a route from the location (LOC) to the destination (DES). This information is transmitted in summary form to the subscriber's mobile radio terminal (MS).

REFERENCES:
patent: 4954958 (1990-09-01), Savage et al.
patent: 5187810 (1993-02-01), Yoneyama et al.
patent: 5543789 (1996-08-01), Behr et al.
patent: 5648768 (1997-07-01), Bouve
"Die Elektronischen Beifahrer", Funkschau, May, 1988, pp. 46-48.
"CARIN, a Car Information and Navigation System", M. Thoone, Philips Technical Review, vol. 43, No. 11/12, Dec. 1987, pp. 317-329.

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