Submission doc.: IEEE 802.11-14/1487r0 November 2014 Amichai Sanderovich, QualcommSlide 1 NG60 Channel model challenges Date: 2014-11-04 Authors:

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Submission doc.: IEEE /1487r0 November 2014 Amichai Sanderovich, QualcommSlide 1 NG60 Channel model challenges Date: Authors:

Submission doc.: IEEE /1487r0November 2014 Amichai Sanderovich, QualcommSlide 2 NG60 features required by the channel model Channel bonding Multiple streams MIMO Multi-users channel (MU-MIMO): focus on DL-MU- MIMO Interference and dense deployment Outdoor channel

Submission doc.: IEEE /1487r0November 2014 Amichai Sanderovich, QualcommSlide 3 Channel Bonding Non-ideal antenna frequency responses Reflection, penetration and diffraction mmWave are often frequency dependent due to the small wavelength RF circuitry, including the shifters and combiners, have some frequency response Extremely high BW in channel model distinguishes different paths (>4cm apart)  More time-domain coefficients are deterministic Outdoor frequency response depends on medium absorption Outdoor channel with Doppler spreads/fast fading

Submission doc.: IEEE /1487r0November 2014 Amichai Sanderovich, QualcommSlide 4 MIMO/MU-MIMO in the channel model SISO model focuses on the largest singular value MIMO model should predict several singular values and provide correlation between streams, thus model should be extended with Reflections with higher order (3rd were noticed in indoor measurements) Diffraction, especially for NLOS, provides higher rank to the channel matrix Polarity characterization of reflections is required if polarity is to be used for spatial multiplication Antenna array intimately connected to the model: Coupling between subassemblies (S21), and between chains Subassembly patterns: Antenna elements pattern: patch, dipole, Yagi-Uda, combinations RF control circuits: phase resolution, gain resolution Array configuration algorithms included in model SVD which is approximated by the RF circuitry Max SNR approximated by the RF circuitry Max SINR approximated by the RF circuitry Polarity separation of the array Outdoor vs. indoor antennas Outdoor arrays are more directional

Submission doc.: IEEE /1487r0November 2014 Amichai Sanderovich, QualcommSlide 5 Summary NG60 channel model is required for evaluations of specifications Channel model should be verified with measurements corresponding to the different scenarios Channel model should account for the unique challenges posed by the NG60, presented in this presentation