Scalable space-frequency coding for MIMO systems
US7623441B1 · kind B1 · utility
25Cited by
2References
63Claims
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Key dates
| Filing date | Jan 28, 2004 |
| Grant date | Nov 24, 2009 |
| Priority date | — |
| Expiry date | Jun 17, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0044
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A transceiver in an N×N MIMO (Multiple-In-Multiple-Out) system includes a mode selection module to select a spatial multiplexing rate and a coding module to space frequency code OFDM (Orthogonal Frequency Division Multiplexing) symbols in response to the selected spatial multiplexing rate. The coding module maps data symbols to the transmit antennas for all data tones in the OFDM symbol. The tones may be mapped using different mapping permutations, which may be applied to the tones in a cyclical manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.