Massive MIMO robust precoding transmission method
US11177863B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2017 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Dec 24, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/3912
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A massive multiple-input multiple-output (MIMO) robust precoding transmission method under imperfect channel state information (CSI), wherein the imperfect CSI obtained by the base station (BS) side of the massive MIMO system is modeled as an a posteriori statistical channel model including channel mean and channel variance information. The model considers the effects of channel estimation error, channel aging and spatial correlation. The BS performs the robust precoding transmission by using the a posteriori statistical channel model, so that the universality problem of the massive MIMO to various typical moving scenarios can be solved, and high spectral efficiency is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.