System and method for reducing interference in OFDM channels
US9876531B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2016 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Jun 22, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2691
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for signal processing in a cable modem termination system (CMTS) is provided. A CMTS receiver in communication with a plurality of cable modems at a upstream signal or a cable modem receiver in communication with the CMTS at a downstream signal. A plurality of Advanced Time Division Multiple Access (“ATDMA”) channel processors include a filter for recovering an ATDMA signal and a Orthogonal Frequency Division Multiplexing (“OFDM”) channel processor includes a filter for processing a combined OFDM and ATDMA signal. A summation module subtracts the ATDMA signal from the combined ATDMA and OFDM signal to obtain a clean OFDM signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.