Remote PHY
Cable standards organisation Cablelabs is to release new specifications for distributed DOCSIS implementations over the summer, according to Karthik Sundaresan, principal architect.
In a blog posting, Sundaresan said that Cablelabs plans to release technical reports and specifications for different distributed CCAP architectures including Remote PHY and Remote MAC-PHY over the coming weeks.
Cablelabs has already published specs for Remote PHY – he layer of a system that handles the physical transmission of data – as MHAv2, an evolution of the older M-CMTS specification. This allows for an integrated CCAP to be separated into two components: the CCAP Core and the Remote PHY Device (RPD) and describes the interfaces between them.
Sundaresan said that a technical report of Remote MAC-PHY, which combines the PHY with the media access controller that handles the generation of data in a single device that sits at the edge of the network.
