Synchronization in severe-fading environments
US12047892B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2021 |
| Grant date | Jul 23, 2024 |
| Priority date | — |
| Expiry date | Jun 11, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/0014
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Apparatus and associated methods relate to providing robust synchronization of a Radio-Frequency (RF) communication in a severe-fading environment. A first portion of a detected RF signal is auto-correlated with a second portion of the detected RF signal. The first and second portions are time-separated by the predetermined time delay separating the first and second code-sequences. A third portion of the detected RF signal is sync-correlated with a sync-sequence so as to generate a sync-correlation signal. The third portion is of the predetermined length of the sync sequence and includes the first and second portions of the detected RF signal used to generate the auto-correlation signal. The auto-correlation signal is multiplied by the sync-correlation signal so as to generate a combined synchronization signal. A peak in the combined synchronization signal is then detected. This peak can be indicative of a synchronization time of an authorized communication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.