Patent ID: 7974290

Claim:
A transmitter of a TDMA (time division multiple access) PON (passive optical network) OLT (optical line terminal) system configured to transmit downstream a larger amount of data from an OLT to an ONT (optical network terminal) than to transmit upstream an amount of data from the ONT to the OLT, the transmitter comprising: a packet processor configured to generate internal frames from downstream directed data and to transmit downstream the internal frames such that the internal frames include destination TDMA PON port information, frame identification information, and a bandwidth matching a maximum amount of downstream traffic; a switch configured to be able to transmit downstream the internal frames received from the packet processor to every TDMA PON MAC (medium access control) processors coupled to the switch; the TDMA PON MAC processors coupled to the switch, the TDMA PON MAC processors configured to be able to receive the internal frames transmitted from the switch and to convert the internal frames into TDMA PON frames; and optical transceivers configured to convert the TDMA PON frames output from the TDMA PON MAC processors into optical signals and configured to transmit the optical signals to the ONT at speeds corresponding to A/n wherein A corresponds the bandwidth of the internal frames and n corresponds to a ratio of downstream to upstream link speeds.