Method and apparatus for producing delay of a carrier signal for

Details Method and apparatus for producing delay of a carrier signal for Method and apparatus for producing delay of a carrier signal for

1997-05-05

1999-09-14

Trost, William G.

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

4552771, H04Q 720

Patent

active

059536594

ABSTRACT:
A method and apparatus for implementing spatial diversity utilizing coaxial interconnections between a plurality of receivers, transmitters and radiating elements in a communication system is disclosed. The long coaxial line used for feeding associated receive antennas is used for creating delay of a signal for implementing downlink diversity. Similarly, the long coaxial lines used for feeding associated transmit antennas are used for creating delay of a signal for implementing uplink diversity. The method and apparatus, in particular, further includes utilization of at least one of the radiating elements for receiving a signal and transmitting a delayed version of a signal to be transmitted.

REFERENCES:
patent: 4361905 (1982-11-01), Etherington et al.
patent: 4710944 (1987-12-01), Nossen
patent: 5180998 (1993-01-01), Willems
patent: 5280472 (1994-01-01), Gilhousen et al.
patent: 5437055 (1995-07-01), Wheatley, III.

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