Systems and methods to enhance spatial diversity in distributed-input distributed-output wireless systems
US9685997B2 · kind B2 · utility
33Cited by
93References
36Claims
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Key dates
| Filing date | May 18, 2012 |
| Grant date | Jun 20, 2017 |
| Priority date | — |
| Expiry date | May 18, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0691
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems and methods are described for enhancing the channel spatial diversity in a multiple antenna system (MAS) with multi-user (MU) transmissions (“MU-MAS”), by exploiting channel selectivity indicators. The proposed methods are: i) antenna selection; ii) user selection; iii) transmit power balancing. All three methods, or any combination of those, are shown to provide significant performance gains in DIDO systems in practical propagation scenarios.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.