Radio communication system
US6141335A · kind A · utility
114Cited by
8References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1997 |
| Grant date | Oct 31, 2000 |
| Priority date | — |
| Expiry date | Dec 4, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q25/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a cellular radio communication system including a plurality of base stations and a plurality of terminals in which one cell is divided into a plurality of sectors, each of the base stations transmits and receives control information by an omnidirectional beam and transmits and receives traffic information by a directional beam. Alternatively, each of the base stations transmits and receives control information by a directional beam with a time difference of the same control information in a plurality of sectors within one cell and transmits and receives traffic information by a directional beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.