Brady Volpe, John Downey, Jason Miller (Cisco) and Flavio Marcon (Effigis) discuss how OFDM Upstream Data Profile (OUDP) test burst in cable modems are used in the measurement of cable leakage tests in high-split cable plant. • What is leakage testing and why do we need it? • How is leakage testing done today • What is high-split and why are we do we need it? • Why can’t we do leakage testing the same way we have been in a high split system? • What is OUDP?
What is a cable modem’s OUDP? What’s an IUC? What’s a DBC? If you already know these initialisms that is awesome. If you don’t, that is fine too. DOCSIS 3.1 introduced OFDMA for more efficient upstream data transfer. In this article, I’ll cover how an impairment will cause the CMTS to change a single CM’s OUDP IUC using a DBC transaction. I will also hopefully help you understand what the heck I just said.What are cable modem profiles?Let us start the discussion with orthogonal frequency division multiple access
