Scrambling Sequences for Wireless Networks

摘要

An integrated circuit includes logic configured to generate scrambling sequences, each based on a different scrambling seed, for a smart-utility-network data packet communication. A Hamming distance between any two scrambling sequences is half the length of a PSDU of the data packet or greater.

主权项

1. An integrated circuit, comprising:
logic configured to generate scrambling sequences, each based on a different scrambling seed, for a smart-utility-network data packet communication; wherein when a retransmission is requested for a packet, a scrambling sequence different from the last scrambling sequence is used in the retransmission of the packet; and wherein when retransmission is requested for a packet, a media access control (MAC) changes a scrambler seed by setting a scramble field to “00” when a physical layer (PHY) is initialized and thereafter increments the scrambler field using a 2-bit rollover counter.