Systems and methods for coding in broadband wireless communication systems to achieve maximum diversity in space, time and frequency
US7720168B2 · kind B2 · utility
28Cited by
1References
20Claims
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Key dates
| Filing date | May 26, 2005 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Jul 6, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0637
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Maximum diversity in multiple antenna distributed frequency broadband systems such as MIMO-OFDM is achievable through space-frequency (SF) and space-time-frequency (STF) coding. Full-rate full-diversity coding is achieved through a combination of maximal minimum product distance symbol set design and formation of codeword blocks. Full-diversity codes are also achieved which have reduced symbol transmission rates, such as through mapping of space-time (ST) codes to SF codes. The reduction in symbol rate may be offset by the fact that any ST code may be mapped to a full-diversity SF code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.