Multi-beam antenna system for cellular radio base stations
US6167286A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1997 |
| Grant date | Dec 26, 2000 |
| Priority date | — |
| Expiry date | Jun 5, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/088
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A base transceiver station operating a sectorized cell of a cellular radio system operates a plurality of narrow uplink main receive beams, and one or a plurality of uplink diversity received beams. A scanning means scans each of the uplink main receive beams to locate a communications channel on the main uplink beams. A diversity receiver receives a diverse beam signal from the diverse beam(s), which is compared with a beam signal received from a main uplink beam, and the main beam signal from the main beam, or a diverse beam signal from the diversity antenna is selected, depending on the comparative signal to noise ratio and signal strength of the main beam signal and diversity beam signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.