Data detection in MIMO systems with demodulation and tracking reference signals
US11323162B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2019 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | Jul 30, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03624
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
What is disclosed is a method for wireless communication comprising receiving a wireless communication via a receiver of the mobile communication device, deriving a demodulation reference signal from a first plurality of symbols of the wireless communication; creating a channel estimation matrix using the demodulation reference signal; inverting the channel estimation matrix to obtain a channel pseudo-inverse matrix; deriving a tracking reference signal from a second plurality of symbols of the wireless communication; calculating a phase shift for one or more additional symbols based on the tracking reference signal; determining a corrected channel pseudo-inverse matrix for the one or more additional symbols by adjusting the channel pseudo-inverse matrix according to the calculated phase shift; and controlling the receiver to accomplish data detection using the corrected channel pseudo-inverse matrix on one or more orthogonal frequency division multiplexing subcarriers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.