Reducing peak-to-average power ratio in MIMO communication system
US12273166B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Apr 7, 2021 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | May 15, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2624
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for reducing peak-to-average power ratio, PAPR, in a Multiple Input Multiple Output, MIMO, communication system is disclosed. The method is performed in a precoder unit and includes: confining, by a differentiable cost function, power of a MIMO signal to be between a lower threshold, Plow, and an upper threshold, Pup, and applying a gradient method on the differentiable cost function until reaching a set power target for the MIMO signal, while keeping an Error Vector Magnitude, EVM, below a set EVM level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.