Systems and methods for distributing content over multiple bandwidth mediums in a service provider network

摘要

Systems and methods for distributing content over various mediums in a service provider network are disclosed. Such mediums may include an optical fiber and a cable line having a bandwidth less than that associated with the optical fiber. In certain embodiments herein, content may be distributed over the cable line, or relatively low bandwidth medium, according to characteristics of the optical fiber, or relatively high bandwidth medium. In one embodiment, data packets may be scheduled using first in first out (FIFO) scheduling for distribution over the cable line using Orthogonal Frequency Division Multiplexing (OFDM). Using this approach, increased bandwidths may be achieved over cable lines. Additionally, certain embodiments herein are directed to maintaining a forward/reverse channel split, which may exist in a PON, over a cable line. Further, certain embodiments herein may relate to dynamic allocation of subcarriers in an OFDM signal in response to changes in quality of service.

主权项

1. A system comprising:
at least one memory configured to store computer-executable instructions; and at least one processor configured to access the at least one memory and execute the computer-executable instructions to: receive, over a first medium having a first bandwidth capacity, one or more PON packets; determine one or more first subcarriers in an OFDM signal for carrying the one or more PON packets; schedule the one or more PON packets, wherein the scheduling comprises encoding the one or more PON packets onto the one or more first subcarriers according to a scheduling technique; distribute the OFDM signal over a second medium, wherein the second medium comprises a second bandwidth that is less than the first bandwidth; receive, over the first medium, a map message comprising information associated with a change in quality of service for a customer premise equipment; and in response to identifying the change in quality of service, allocate one or more second subcarriers in the OFDM signal for carrying one or more additional data packets to the customer premise equipment.