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Doc.: IEEE 802.11-10/1255r0 Submission TX Mask for Noncontiguous 160 MHz Date: 2010-11-07 Youhan Kim et al.Slide 1 Authors: November 2010.

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Presentation on theme: "Doc.: IEEE 802.11-10/1255r0 Submission TX Mask for Noncontiguous 160 MHz Date: 2010-11-07 Youhan Kim et al.Slide 1 Authors: November 2010."— Presentation transcript:

1 doc.: IEEE /1255r0 Submission TX Mask for Noncontiguous 160 MHz Date: Youhan Kim et al.Slide 1 Authors: November 2010

2 doc.: IEEE /1255r0 Submission 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 November 2010 Youhan Kim et al.Slide 2

3 doc.: IEEE /1255r0 Submission 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 November 2010 Youhan Kim et al.Slide 3 80 MHz For example, what is the exact TX spectral mask here? 80 MHz Mask

4 doc.: IEEE /1255r0 Submission 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 where NOT {(-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. Slide 4

5 doc.: IEEE /1255r0 Submission Mask Construction Example 1 November 2010 Youhan Kim et al.Slide 5 80 MHz Blue: 80 MHz Mask Step 1: Sum mask where overlapping at -40 dBr ~ -20 dBr Step 2: Max. mask for everywhere else except -20 dBr ~ 0 dBr Step 3: Linear interpolation for -20 dBr ~ 0 dBr region -20 dBr -40 dBr -20 dBr -40 dBr -20 dBr -40 dBr 80 MHz

6 doc.: IEEE /1255r0 Submission Mask Construction Example 2 November 2010 Youhan Kim et al.Slide 6 80 MHz Blue: 80 MHz Mask Step 1: Sum mask where overlapping at -40 dBr ~ -20 dBr Step 2: Max. mask for everywhere else except -20 dBr ~ 0 dBr Step 3: Linear interpolation for -20 dBr ~ 0 dBr region -20 dBr -40 dBr -20 dBr -40 dBr -20 dBr -40 dBr

7 doc.: IEEE /1255r0 Submission Mask with 80 MHz Gap Between Segments Youhan Kim et al.Slide dBr -40 dBr -25 dBr -0 dBr -28 dBr November MHz 160 MHz 80 MHz

8 doc.: IEEE /1255r0 Submission Pre-Motion Do you support the transmit spectral mask for noncontiguous 160 MHz transmissions as described on slide 5, and to edit the specification framework document (11-09/0992) accordingly? November 2010 Youhan Kim et al.Slide 8

9 doc.: IEEE /1255r0 Submission References [1] Porat, R. et al., Spectral Mask and Flatness, IEEE /1109r1, Sep [2] Stacey, R. et al., Specification Framework for TGac, IEEE /0992r15, Sep November 2010 Youhan Kim et al.Slide 9

10 doc.: IEEE /1255r0 Submission Backup November 2010 Youhan Kim et al.Slide 10

11 doc.: IEEE /1255r0 Submission 80 MHz Channels November 2010 Youhan Kim et al.Slide IEEE channel # 80 MHz Available only in US


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