Communication-line-quality estimating apparatus, transmitter, and receiver
US9686052B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 18, 2013 |
| Grant date | Jun 20, 2017 |
| Priority date | — |
| Expiry date | Nov 18, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03414
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communication-line-quality estimating apparatus of which a receiver receives from a transmitter a signal including known signals whose phase relation is known between the transmitter and the receiver. The communication-line-quality estimating apparatus includes a pilot adding unit that cumulatively adds up and averages a power value of a noise component calculated by addition or subtraction in a specified combination of the known signals, a first power calculating unit, a first averaging processing unit, a second power calculating unit that cumulatively adds up and averages a power value of the known signals, a second averaging processing unit, and a power-ratio calculating unit that estimates communication line quality using a noise signal power value input from the first averaging processing unit and a reception signal power value input from the second averaging processing unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.