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TX Mask for Noncontiguous 160 MHz

TX Mask for Noncontiguous 160 MHz. Authors:. Date: 2010-11-08. Background. TX mask for 20, 40, 80 and contiguous 160 MHz transmissions has been adopted [1, 2] Remaining is TX mask for noncontiguous 160 MHz transmissions. Basic Concept.

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TX Mask for Noncontiguous 160 MHz

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  1. TX Mask for Noncontiguous 160 MHz Authors: Date: 2010-11-08 Youhan Kim et al.

  2. Background • TX mask for 20, 40, 80 and contiguous 160 MHz transmissions has been adopted [1, 2] • Remaining is TX mask for noncontiguous 160 MHz transmissions Youhan Kim et al.

  3. Basic Concept • Propose that each segment meets the TX mask for 80 MHz transmissions • Natural since each segment is 80 MHz wide • Some details to think about 80 MHz 80 MHz 80 MHz Mask For example, what is the exact TX spectral mask here? Youhan Kim et al.

  4. Proposed Mask • Place two 80 MHz TX masks, one for each segment • v1 = Mask value of one 80 MHz mask • v2 = Mask value of the other 80 MHz mask • For frequencies where(-40 dBr < v1 < -20 dBr) and (-40 dBr < v2 < -20 dBr) • Mask value = v1 + v2 (sum in linear domain) • For frequencies whereNOT {(-20 dBr < v1 < 0 dBr) or (-20 dBr < v2 < 0 dBr)} • Mask value = max(v1, v2) • For all other frequencies • Mask value = linearly interpolate (in dB domain) Atheros Communications, Inc.

  5. Mask Construction Example 1 Blue: 80 MHz Mask • Step 1: Sum mask where overlapping at -40 dBr ~ -20 dBr 80 MHz 80 MHz -20 dBr -40 dBr • Step 2: Max. mask for everywhere else except -20 dBr ~ 0 dBr -20 dBr -40 dBr • Step 3: Linear interpolation for -20 dBr ~ 0 dBr region -20 dBr -40 dBr Youhan Kim et al.

  6. Mask Construction Example 2 Blue: 80 MHz Mask • Step 1: Sum mask where overlapping at -40 dBr ~ -20 dBr 80 MHz 80 MHz -20 dBr -40 dBr • Step 2: Max. mask for everywhere else except -20 dBr ~ 0 dBr -20 dBr -40 dBr • Step 3: Linear interpolation for -20 dBr ~ 0 dBr region -20 dBr -40 dBr Youhan Kim et al.

  7. Mask with 80 MHz Gap Between Segments 80 MHz 80 MHz 80 MHz -0 dBr -20 dBr -25 dBr -28 dBr -40 dBr 160 MHz Youhan Kim et al.

  8. Pre-Motion • Do you support the transmit spectral mask for noncontiguous 160 MHz transmissions as described on slide 4, and to edit the specification framework document (11-09/0992) accordingly? Youhan Kim et al.

  9. References [1] Porat, R. et al., Spectral Mask and Flatness, IEEE 802.11-10/1109r1, Sep. 2010 [2] Stacey, R. et al., Specification Framework for TGac, IEEE 802.11-09/0992r15, Sep. 2010 Youhan Kim et al.

  10. Backup Youhan Kim et al.

  11. 80 MHz Channels 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140 144 149 153 157 161 165 IEEE channel # 80 MHz Available only in US Youhan Kim et al.

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