Radio communication system, radio base-station apparatus, mobile radio-station apparatus, radio zone assignment method, and radio communication method
US6956813B2 · kind B2 · utility
47Cited by
5References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 12, 2001 |
| Grant date | Oct 18, 2005 |
| Priority date | — |
| Expiry date | Sep 2, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/0453
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A plurality of frequency-channels are provided, each composed of an OFDM multi-carrier. The OFDM sub-carrier of each channel is orthogonal to the sub-carrier of any other channel, so that two or more channels may be considered to transmit the same OFDM signal. Further, a sub-area that uses two or more channels is provided in each service area in which a base station is located at the center and assigned with a basic-frequency channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.