NUC Signaling and Capabilities Proposal
This document discusses the proposal for signaling and capabilities of non-uniform constellations (NUCs) in the IEEE 802.11 standard, highlighting their performance benefits, implementation complexities, and the need for distinguishing between transmission and reception capabilities.
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January 2017 doc.: IEEE 802.11-17/0057r0 Signaling and Capabilities for Non- Uniform Constellation Date: 2017/01/16 Authors: Name Affiliations Address Phone +49-711- 5858236 +49-711- 5858204 email thomas.handte@ sony.com dana.ciochina@ sony.com Thomas Handte Hedelfinger Str. 61, D-70327 Stuttgart, Germany Sony Europe Ltd Dana Ciochina Submission Slide 1 Thomas Handte, Dana Ciochina, Sony
January 2017 doc.: IEEE 802.11-17/0057r0 Introduction Non-uniform constellations (NUCs) have been shown to provide increased performance compared to uniform constellations (UCs) [1]-[4] 11ay SFD indicates support for NUC A 64-point non-uniform constellation shall be included in the 11ay specification , motioned in July 2016 However, there is no signaling for NUCs defined This presentation shows a NUC signaling and a NUC capabilities proposal Submission Slide 2 Thomas Handte, Dana Ciochina, Sony
January 2017 doc.: IEEE 802.11-17/0057r0 Aspects to consider NUC applies to higher order MCS only NUC gain is significant for constellation orders greater or equal than 16-QAM NUC does not replace uniform constellation (UC) EDMG devices will support UC for backwards compatibility All EDMG modes of operation shall benefit of NUC Decision on number of distinct NUCs and signal points not yet made Submission Slide 3 Thomas Handte, Dana Ciochina, Sony
January 2017 doc.: IEEE 802.11-17/0057r0 Capabilities Proposal The support of non-uniform constellation requires indication in EDMG capabilities Addition of NUC capability information to EDMG capabilities NUC implementation complexity is asymmetric between Tx and Rx A NUC mapper is much simpler than a NUC demapper We propose that NUC capability information shall distinguish between NUC transmission and NUC reception Submission Slide 4 Thomas Handte, Dana Ciochina, Sony
January 2017 doc.: IEEE 802.11-17/0057r0 Signaling Proposal A single bit in headers indicates the use of non-uniform constellation Add a NUC indication to EDMG-header-A Add a NUC indication to EDMG-header-B Users may have different NUC capabilities The NUC indication consists of a single bit If bit is set, NUC is used by transmitter It is valid for each addressed spatial stream (MIMO) The actual code rate and constellation size is signaled with the EDMG- MCS subfield in each header If the entry in a particular EDMG-MCS subfield does not support NUC, uniform constellation shall be applied Submission Slide 5 Thomas Handte, Dana Ciochina, Sony
January 2017 doc.: IEEE 802.11-17/0057r0 Signaling Proposal (cont.) Example Assume NUC support for 64-QAM Modulation NCBPS Repetition Code rate Data rate (Mbps) MCS index NUC indication value EDMG-MCS subfield value Applied modulation 1 2 3 4 5 6 7 8 9 /2-BPSK /2-BPSK /2-BPSK /2-BPSK /2-BPSK /2-BPSK /2-QPSK /2-QPSK /2-QPSK /2-QPSK /2-QPSK /2-16QAM /2-16QAM /2-16QAM /2-16QAM /2-16QAM /2-64QAM /2-64QAM /2-64QAM /2-64QAM 1 1 1 1 1 1 2 2 2 2 2 4 4 4 4 4 6 6 6 6 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1/2 1/2 5/8 3/4 13/16 7/8 1/2 5/8 3/4 13/16 7/8 1/2 5/8 3/4 13/16 7/8 5/8 3/4 13/16 7/8 385 770 962.5 1155 1251.25 1347.5 1540 1925 2310 2502.5 2695 3080 3850 4620 5005 5390 5775 6930 7507.5 8085 0 17 64-QAM UC with CR 5/8 1 17 64-QAM NUC with CR 5/8 0 / 1 14 16-QAM UC with CR 3/4 10 11 12 13 14 15 16 17 18 19 20 support NUC Submission Slide 6 Thomas Handte, Dana Ciochina, Sony
January 2017 doc.: IEEE 802.11-17/0057r0 Signaling Proposal (cont.) Advantages of NUC signaling in headers Flexible design independent of number of NUCs Agreed MCS table unchanged Signaling independent of actual mode of operation Same signaling for SU-SISO, SU-MIMO, MU-MIMO, MU-FDMA, channel aggregation Same signaling could also be applied in OFDM headers NUC could also be part of MCS table, however MCS table would change NUC would cause additional and redundant entries Limited space in MCS table for future enhancements (e.g. >64-QAM) More complex signaling of capabilities MCS signaling for SU-MIMO (>4 SS) needs to be revisited Submission Slide 7 Thomas Handte, Dana Ciochina, Sony
January 2017 doc.: IEEE 802.11-17/0057r0 Summary This presentation proposes A signaling for the transmitter to indicate use of non-uniform constellation Addition of a single bit in EDMG header-A and header-B Signaling is invariant with respect to 11ay modes of operation Addition of capability information for non-uniform constellation to the EDMG capabilities Capability information shall distinguish between NUC transmission and NUC reception Submission Slide 8 Thomas Handte, Dana Ciochina, Sony
January 2017 doc.: IEEE 802.11-17/0057r0 References [1] 11-15-0601-00-00ay Non-uniform Constellations for 64QAM. [2] 11-15-0835-00-00ay-potential-of-non-uniform-constellations-with- peak-power-constraint. [3] 11-16-0072-00-00ay-performance-of-non-uniform-constellations-in- presence-of-phase-noise. [4] 11-16-0955-00-00ay Non-Uniform HOM Constellations for 11ay Single Carrier Submission Slide 9 Thomas Handte, Dana Ciochina, Sony
January 2017 doc.: IEEE 802.11-17/0057r0 SP #1 Do you agree to add the following to the SFD: The EDMG core capabilities shall contain NUC capabilities which indicate support of NUC and differentiate between NUC transmission and reception. Y/N/A Submission Slide 10 Thomas Handte, Dana Ciochina, Sony
January 2017 doc.: IEEE 802.11-17/0057r0 SP #2 Do you agree to add the following to the SFD: EDMG header-A and header-B shall have an indication to signal use of non-uniform constellation. The indication consists of a single bit in each header and rules of slide #5 apply. Y/N/A Submission Slide 11 Thomas Handte, Dana Ciochina, Sony
