256 QAM Mapping Date: 2010-07-12 Authors: Month Year doc.: IEEE 802.11-yy/xxxxr0 256 QAM Mapping Date: 2010-07-12 Authors: Slide 1 Joseph Lauer et.al, Broadcom John Doe, Some Company

Introduction Bit labeling for BPSK, QPSK, 16 QAM, and 64 QAM defined in 802.11 standard has the following characeritics: Independent Gray coding on I & Q axis I bits followed by Q bits Most negative symbol value corresponds to all 0’s Need to specify mapping for 256 QAM We propose simply to extrapolate from already defined constellations in 802.11n 4 bit Gray coding for each dimension Joseph Lauer et.al, Broadcom

Corresponding 256 QAM Constellation Joseph Lauer et.al, Broadcom

Straw Poll Do you accept the 256 QAM constellation mapping as shown on Slide 3 of this document to be included into the Specification Framework document 11-09/0992 ? Joseph Lauer et.al, Broadcom

Motion Move to accept the 256 QAM constellation mapping as shown on Slide 3 of this document to be included into the Specification Framework document 11-09/0992 . Joseph Lauer et.al, Broadcom