Apparatus for radio local loop system

Details Apparatus for radio local loop system Apparatus for radio local loop system

1996-09-30

1998-09-01

Tarcza, Thomas H.

Cryptography

Key management

Having particular key generator

455403, 455550, 455560, 455561, H04L 900

Patent

active

058021779

ABSTRACT:
Apparatus for a radio local loop for a telecommunications system, such as a base station (1) or a subscriber station (2), comprises a first unit (4, 13), which includes call processing and speech transcoding/encryption apparatus (8, 17), and which can be housed in a friendly environment, such as within a telephone exchange or within a subscriber's premises, and a comparatively rugged second unit (3, 14) which includes a modem (11, 22) and radio transceiver (12, 23), and which can be housed, in the case of a base station, at a site remote from the exchange, but central for the subscribers which it is to serve, and in the case of a subscriber station on the outside of the subscriber's premises. The first and second units are linked by a base-band link (5, 15).

REFERENCES:
patent: 4890315 (1989-12-01), Bendixen et al.
patent: 5555258 (1996-09-01), Snelling et al.
patent: 5592555 (1997-01-01), Stewart
patent: 5654979 (1997-08-01), Levin et al.
patent: 5724661 (1998-03-01), Nagashima

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