Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via frequency channels
Patent
1996-02-26
1999-11-16
Jung, Min
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via frequency channels
455103, 4552771, H04J 100
Patent
active
059870370
ABSTRACT:
Disclosed is a multiple-beam transmitting system for use in a wireless telecommunication system, including a radio transmitter assembly, which can be situated at the bottom of a base station tower, and a transmitter subassembly that can be situated atop the base station tower. The radio transmitter assembly is operative to modulate and frequency translate a plurality of input information-bearing signals. The signals are then combined to form a first FDM signal, which can then be routed to the transmitter subassembly via a single FDM cable running up the tower. The transmitter subassembly includes a power splitter for splitting the first FDM signal into a plurality of second FDM signals and a plurality of frequency translators, each for frequency translating one of the second FDM signals. Each frequency translator thereby places at least one of the information-bearing signals within a predetermined translated frequency band. A multiple-beam-antenna radiates a plurality of antenna beams, with each antenna beam transmitting at least one of the information-bearing signals placed by an associated frequency translator within the translated frequency band. A multiple beam receiving system can be employed to receive incoming signals from wireless terminals.
REFERENCES:
patent: 5048116 (1991-09-01), Schaeffer
patent: 5396489 (1995-03-01), Harrison
patent: 5563610 (1996-10-01), Reudink
patent: 5579341 (1996-11-01), Smith et al.
patent: 5602555 (1997-02-01), Searle et al.
patent: 5604462 (1997-02-01), Gans et al.
patent: 5631898 (1997-05-01), Dent
H. Foster et al., Butler Network Extension To Any Number of Antenna Ports, IEEE Transactions on Antennas and Propagations, Nov. 1970, pp. 818-820.
R. Johnson, Antenna Engineering Handbook, McGraw Hill Publishing Co., 3rd edition, 1993, pp. 20-59 to 20-60.
Jung Min
Lucent Technologies - Inc.
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