Frequency hopping ofdma method using symbols of comb pattern
US7542504B2 · kind B2 · utility
46Cited by
7References
31Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 26, 2002 |
| Grant date | Jun 2, 2009 |
| Priority date | — |
| Expiry date | Sep 7, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0226
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Method for providing frequency-hopping OFDMA using symbols of comb patter, the method including the steps of: a) assigning frequency domain signal X(k) of comb pattern (comb symbol, k is frequency index) to modulated data sequence, the comb symbol comprising predetermined number of sub carriers (sub carrier group) which are placed with predetermined interval in the whole available frequency band; b) getting the comb symbol hopped for the comb symbol to have independent frequency offset; and c) inverse fast fourier transforming the comb symbol to time domain signal x(n) (n is time index) and transmitting the signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.