System and method for efficient delivery of data content

A method of delivering data in at least first and second categories of service, comprising:

• defining data sent to a plurality of client devices corresponding to the first category of service as mandatory data based upon a flag;
• defining additional data corresponding to the second category of service as optional data, wherein clients automatically receive content from the first category of service but must have subscriptions to receive specified content from the second category of service;
• subscribing the plurality of client devices to a multicast group corresponding to the mandatory data based upon the flag:
• transmitting the mandatory data from a data source to a network;
• relaying the mandatory data from the network to an access node;
• replicating the mandatory data at the access node;
• and
• sending the replicated mandatory data from the access node to the plurality of client devices, the plurality of client devices corresponding to a plurality of users that have not asked to receive the mandatory data.

A method of delivering data in at least first and second categories of service, comprising:

• establishing in a data source a carousel containing a plurality of data sets, wherein clients automatically receive data sets from the first category of service but must have subscriptions to receive data sets from the second category of service;
• transmitting a first data set of the plurality of data sets from the data source to a network;
• relaying the first data set from the network to an access node;
• replicating the first data set at the access node;
• sending the replicated first data set from the access node to a plurality of client devices;
• repeating the steps of transmitting, relaying, replicating and sending for at least a second data set of the plurality of data sets;
• and
• cycling back to the step of transmitting a first data set after completing the step of repeating for as least a second data set.