OFDM transmitter and OFDM receiver
US7480235B2 · kind B2 · utility
8Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2004 |
| Grant date | Jan 20, 2009 |
| Priority date | — |
| Expiry date | Jul 22, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0007
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An OFDM transmitter transmits an OFDM signal by a frame having a plurality of transmission symbol periods constituted of an effective symbol period for transmitting an information bit and a guard interval. The OFDM transmitter includes a guard interval length decider configured to decide a guard interval length in accordance with a feedback signal from an OFDM receiver; and a guard interval length changer configured to change a guard interval length in each transmission symbol period, in accordance with a decided guard interval length without changing a frame length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.