Multi-beam antenna arrays for base stations in which the channel follows the mobile unit
US5890067A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1996 |
| Grant date | Mar 30, 1999 |
| Priority date | — |
| Expiry date | Jun 26, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W16/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Cells in a radio telephone scheme are covered by beam-spots generated by multi-beam antenna system. Forward communication channels follow mobile units as they move between beam-spots. Additionally, each cell is divided into zones based on the mobile traffic patterns within the cell. Typically, there will be a high density zone covered by many, small area beam-spots, a medium density zone covered by two or three medium sized beam-spots, and a low density zone covered by one large beam-spot. As the mobile traffic patterns change throughout the day, multi-beam antenna dynamically reconfigures the zone and beam-spot layout for each cell, thereby keeping a nearly optimal zone and beam-spot configuration despite varying mobile traffic patterns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.