Cellular communications system
US6405044B1 · kind B1 · utility
50Cited by
9References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1999 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Aug 30, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/14
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention relates particularly to fixed wireless access networks and provides a cellular communication network which serves directional subscribers while reducing co-frequency interference substantially uniformly across the network. The network comprises a plurality of base stations arranged to form sectored cells using a plurality of carrier frequencies, where sectors carrying common frequencies are directionally mis-aligned and arranged such that the polarization of said frequencies are varied with respect to each other across the network in order to reduce co-frequency interference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.