COMPUTING CYCLIC PREFIX LENGTH AND RECEIVER WINDOWING LENGTH USING INGRESS CONDITIONS IN AN OFDM SYSTEM

摘要

The disclosure relates to technology for selecting a cyclic prefix length and a downstream receiver window length in an OFDM signal of a cable modem termination system (CMTS). The CMTS receives ingress statistics for one or more ingress signals collected by one or more cable modems. A cyclic prefix length for downstream signal transmissions to the one or more cable modems is selected based on the collected ingress statistics, and an OFDM signal is transmitted to the one or more cable modems using the selected cyclic prefix length.