PRECISION TIMING IN A DATA OVER CABLE SERVICE INTERFACE SPECIFICATION (DOCSIS) SYSTEM
摘要
An accurate non-Data Over Cable Service Interface Specification (non-DOCSIS) clock signal is generated at the downstream output of a DOCSIS network. In one example method, a downstream DOCSIS Timing Protocol (DTP) client in the DOCSIS network is frequency synchronized to an upstream DTP server in the DOCSIS network. DOCSIS timing information, along with one or more timing correction factors received at the DTP client, is used to time synchronize the DTP client to the DTP server. Based on the time and frequency synchronization between the DTP server and the DTP client, the clock signal is generated at the output of the DTP client in accordance with the non-DOCSIS timing protocol.
申请公布号
WO2012166569(A1)
申请公布日期
2012.12.06
申请号
WO2012US39504
申请日期
2012.05.25
申请人
CISCO TECHNOLOGY, INC.;CHAPMAN, JOHN, T.;CHOPRA, RAKESH;MONTINI, LAURENT;OVERCASH, MICHAEL
发明人
CHAPMAN, JOHN, T.;CHOPRA, RAKESH;MONTINI, LAURENT;OVERCASH, MICHAEL