Method and system providing increased antenna functionality in a

Details Method and system providing increased antenna functionality in a Method and system providing increased antenna functionality in a

1997-04-08

1999-11-09

Miller, John W.

Telecommunications

Wireless distribution system

455 14, 455 22, 455 71, 455209, 455316, 455318, H04B 126, H04B 358

Patent

active

059830700

ABSTRACT:
A system and method for transmitting a radio frequency (RF) signal in a RF bandwidth over a low bandwidth medium, e.g., in-building unshielded twisted pair (UTP) cabling, which has a transmission bandwidth below the RF bandwidth. The system has a unit for receiving the RF signal and a global reference oscillator for distributing a global reference tone of high stability to the entire system. Local oscillators controlled by this global reference tone deliver RF reference tones of high stability required for mixing the RF signal to obtain an intermediate frequency (IF) signal which is fed through the low bandwidth medium to remote sites. A 10 base T cable network, often pre-existing in many building structures, provides a suitable, cost effective low bandwidth medium for such RF communication. Two of the four twisted pair cables of a UTP cable are sufficient to support bi-directional communication. The remaining twisted pair cables are used to control remote site antenna functions or support other types of communication services such as data LAN, video, wired voice, or other wireless services such as PCS or wireless LAN.

REFERENCES:
patent: 4959862 (1990-09-01), Davidov et al.
patent: 5046135 (1991-09-01), Hatcher
patent: 5109532 (1992-04-01), Petrovic et al.
patent: 5230086 (1993-07-01), Saul
patent: 5404570 (1995-04-01), Charas et al.
patent: 5603080 (1997-02-01), Kallander et al.

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