Patent ID: 9014282
Filing Date: 2015-04-21
Classification: H04J,H04L

Abstract:
1. A method comprising: frequency synchronizing a downstream Data Over Cable Service Interface Specification (DOCSIS) Timing Protocol (DTP) client in a DOCSIS network to an upstream DTP server in the DOCSIS network, including synchronizing a frequency of an interface on the DTP client to a downstream DOCSIS Quadrature Amplitude Modulation (QAM) carrier frequency from the DTP server; time synchronizing the DTP client to the DTP server based on DOCSIS timing information transmitted by the DTP server to the DTP client and based on one or more timing correction factors received at the DTP client; and generating, based on the frequency and time of the DTP client synchronized to the DTP server, a non-DOCSIS timing signal at the output of the DTP client.