System and method for channel-adaptive error-resilient transmission to multiple transceivers

摘要

In a passive optical network, a downstream transmission rate from an OLT to multiple ONTs can be optimized by matching a transmission scheme for frames addressed to a channel to the downstream transmission characteristics of the channel. An FEC coding can be made channel dependent so that channels with low error rates can use minimal protection, and therefore minimal overhead, while channels with high input bit error rates can use the level of FEC coding required to produce a desired output bit error rate.

主权项

1. A method, comprising:
determining downstream transmission characteristics for at least one channel between at least one optical line termination device and a plurality of optical network units, wherein determining the downstream transmission characteristics of the at least one channel comprises: applying a forward error correction code to one or more frames transmitted downstream on the at least one channel; and counting a number of errors corrected in the one or more frames; configuring at least one transmission scheme for the at least one channel, the transmission scheme dependent on the downstream transmission characteristics of the at least one channel; and performing downstream transmissions from the at least one optical line termination device on the at least one channel.