Mobile telecommunications system having an expanded operational

Details Mobile telecommunications system having an expanded operational Mobile telecommunications system having an expanded operational

1992-07-15

1995-04-18

Eisenzopf, Reinhard J.

Telecommunications

Carrier wave repeater or relay system

Portable or mobile repeater

455 16, 455 25, 455 541, H04B 7155

Patent

active

054086795

ABSTRACT:
A mobile telecommunication system comprises a base station connected to a public communication network and having a non-directional antenna for broadcasting at a first frequency over a first operational zone and for receiving a radio transmission at a second frequency, a relay station provided outside the first operational zone and having a directional antenna directed to the non-directional antenna of the base station for receiving the broadcast therefrom and for transmitting thereto at the second frequency, the relay station further having a non-directional antenna for broadcasting at a third frequency over a second operational zone and for receiving a radio transmission at a fourth frequency, and a mobile terminal movable between the first and second operational zones. The mobile terminal receives the broadcast from either of the base station and the relay station at either of the first and third frequencies and transmit at either of the second and fourth frequencies, wherein the mobile terminal monitors the strength of electric field of the broadcast from the base station and the relay station and selects the station to which the mobile terminal communicates in response to the strength of the electric field.

REFERENCES:
patent: 2421017 (1947-05-01), Deloraine et al.
patent: 4484353 (1984-11-01), Flottes et al.
patent: 4539706 (1985-09-01), Mears et al.
patent: 4677687 (1987-06-01), Matsuo
patent: 4972456 (1990-11-01), Kaczmarek et al.
patent: 5081671 (1992-01-01), Raith et al.
patent: 5129096 (1992-07-01), Burns
patent: 5152002 (1992-09-01), Leslie et al.
patent: 5231632 (1993-07-01), Yamao et al.
Report of the CCIR, 1990.
Microwave Telecommunications by Takashi Matsumoto, 2.1.4 Use of Frequency (Jan. 25, 1966).

Affiliated with

Also associated with

Rating

Mobile telecommunications system having an expanded operational does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mobile telecommunications system having an expanded operational , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mobile telecommunications system having an expanded operational will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-75036