OFDM symbol design for different channel conditions and for backward compatibility with 1xEV-DO and NxEV-DO
US7944808B2 · kind B2 · utility
6Cited by
1References
8Claims
0Family size
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Key dates
| Filing date | Mar 23, 2007 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Mar 8, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2603
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for generating a transmission slot includes receiving a transmission slot that includes a plurality of data regions and a plurality of control regions, in which each of the data regions include digital spread spectrum data. The method further includes substituting each of the plurality of data regions with at least one OFDM symbol having variable duration, in which each of the at least one OFDM symbol has a cyclic prefix extension (CPE).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.