Packet detector

摘要

There are several exemplary ways to more efficiently communicate an out-of-domain seed to a receiver—in a first technique, the seed can be indicated in the header portion or data portion of a packet. For example, the header portion of the packet could contain one or more bit fields that indicate the value of the LFSR seed used for the preamble portion of the packet. The receiver would learn the out-of-domain seed after receiving a first out-of-domain packet and decoding the header portion of that packet. After learning the out-of-domain seed, the receiver could send a packet indicating the value of the out-of-domain seed to the local master. The local master could then transmit the value of the out-of-domain seed in the header portion or data portion of a local MAP frame.

主权项

1. A method of OFDM communication comprising:
receiving, by a transceiver, a packet including a header portion and preamble portion, wherein:
the preamble portion includes a plurality of OFDM symbols that were modulated using a constellation scrambler,the header portion of the packet contains one or more bit fields that contain information that can be used to determine a value of a seed that was used to generate the preamble portion of the packet, andthe value of the seed is used to determine whether the packet is an out-of-domain packet or an in-domain packet.