System with modulated signal to compensate frequency errors in LTE signals
US12119922B2 · kind B2 · utility
0Cited by
7References
20Claims
0Family size
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Key dates
| Filing date | Jan 25, 2023 |
| Grant date | Oct 15, 2024 |
| Priority date | — |
| Expiry date | Jan 25, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W56/005
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A satellite communication system leverages the carrier offset detection capability of the demodulator contained in an on-board modem of M&C channel. The modem detects the frequency error Δf introduced in the signal path from the output of the base station at ground to the output of baseband conversion on the satellite, by analyzing the baseband signal at the baseband conversion to estimate the received carrier f′c and subtracting it the from the expected frequency (fc).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.