Head-End Gateway Relationship
The RG will enable multiple, digital communication services over various broadband access networks to enter the home and small businesses in the coming years. The RG Group recommends that each access network provide outbound (to the home) and inbound (return path) digital channels using the data communication protoco to support multiple virtual circuits between residential customer premises equipment (CPE) and remote services. Given the predominance of video data outbound to the home, it may be preferable to separate this traffic from all other services, by using separate frequency bands. This is an aspect to be established during the detailed standardization process of the RG.
At the head-end of the access network, means must be provided for multiplexing the various services onto the channels provided by the access networks. Much, if not all, of these means can be provided b data communication switches in conjunction with re-synchronizers for video streams. There must be provisions in the RG itself to multiplex various channels from different service providers.
The head-end is also the access point for the service provider's network management system, and may also act as a firewall for secure access to public data networks. The possibility does exist to move security functions into the RG.