Multiple antenna transmission with variable diversity gain
US9768846B2 · kind B2 · utility
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12References
28Claims
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Assignee
Inventor
Key dates
| Filing date | Apr 25, 2016 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Apr 30, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0678
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A MIMO transmitter including a modulator, a demultiplexer arranged to divide the information into one or more demux streams for transmission over different ones of the channels, and a diversity splitter to derive one or more sub-streams of the same information. A decorrelator such as a scrambler decorrelates the sub-streams before or after the modulation. In use, the arrangement is configurable to vary a ratio of demultiplexing and of diversity splitting. This balances between the gains from diversity and spatial multiplexing, without needing major changes to the transmit and receive processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.