Patent ID: 9369206
Filing Date: 2016-06-14
CPC Classification: H04B,H04L,H04Q

Claim Text:
1. An Ethernet Passive Optical Network over Coax (EPoC) PHY transmitter, comprising: a bit loading table containing respective symbol bit loading for each of a plurality of sub-carriers; a symbol mapper configured to receive a bit stream and, for each sub-carrier of the plurality of sub-carriers, to: determine whether or not the sub-carrier is used, if the sub-carrier is not used, assign zero bits of the bit stream to the sub-carrier, if the sub-carrier is used, determine whether or not the sub-carrier is reserved for data, and if the sub-carrier is reserved for data, assign one or more bits of the bit stream to the sub-carrier based on the respective symbol bit loading for the sub-carrier; and a plurality of multi-subcarrier modulators associated respectively with a plurality of channels, the plurality of channels formed by respective subsets of the plurality of sub-carriers, and configured to modulate the plurality of channels respectively to generate a plurality of respective multi-subcarrier modulated signals for reception in parallel by a single EPoC PHY receiver to recover the bit stream.