Patent EP0647979A2 successfully refreshed from Google Patents.
EP0647979A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Base station antenna arrangement
Assignee: Nortel Networks Ltd
•
Filing: 1994-07-21
•
Granted: —
•
Expires: 2014-07-21
Abstract
Abstract An antenna for a base station comprising a plurality of antenna arrays (40; Fig. 6a) each capable of forming a multiplicity of separate overlapping narrow beams in azimuth, the arrays being positioned such that the beams formed by the arrays provide a coverage in azimuth wider than each array. Means are provided for selecting (72, 80, 82; Fig. 6b) for a given call more than one of the best received signals from the multiplicity of narrow overlapping beams and for combining the selected signals to form a single receive signal input for an r.f. transceiver for the given call.
Inventors
- 👤 Peter John Chrystie
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 13:28
CPC Classifications
H; H04; H04W; H04W16/00; H04W16/24; H04W16/28; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/24; H01Q1/241; H01Q1/246; H01Q25/00; H04B; H04B7/00; H04B7/02; H04B7/04; H04B7/0408; H04W52/00; H04W52/04; H04W52/06; H04W52/14; H04W52/143; H04W52/30; H04W52/34; H04W52/343; H04W52/36; H04W52/367
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
An antenna comprising a plurality of layered antenna arrays (40; Fig. 6a) each capable of forming a multiplicity of separate overlapping narrow beams in azimuth, the arrays being positioned such that the beams provide a coverage in azimuth wider than each array; characterised in that the antenna includes selecting means for selecting (72, 80, 82; Fig. 6b) for a given call more than one of the best received signals from the multiplicity of narrow overlapping beams; and means for combining the selected signals to form a single receive signal input for the r.f. transceiver for the given call.
Claim 2
Dependent Claim
104 words
An antenna according to claim 1 further including azimuth beamforming means (44, 46; Fig 6a) for each array; a plurality of r.f. transceivers (84; Fig 6b) each for transmitting and receiving r.f. signals for one or more calls; switching matrix means (78, 82; Fig. 6b) for connecting each transceiver with one or other of the arrays via the beamforming means; control means (80; Fig. 6b, 64; Fig. 6a) for controlling the switch matrix means whereby a particular transceiver is connected to a particular array, via the beamforming means, to exchange r.f. signals with a remote station located in the area covered by the antenna.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.