Communication system using OFDM for one direction and DSSS for another direction
US6940827B2 · kind B2 · utility
241Cited by
35References
54Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2001 |
| Grant date | Sep 6, 2005 |
| Priority date | — |
| Expiry date | May 17, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/54
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for wireless communication are described. In one embodiment, a method for communicating with a subscriber comprises transmitting orthogonal frequency domain multiplexing (OFDM) signals to the subscriber, and receiving direct-sequence spread spectrum (DSSS) signals from the subscriber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.