may 2015 submission doc.: 05-15-1082-05-00aj shiwen he, haiming wang ppdu format for ieee 802.11aj...
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May 2015
Submission
doc.: 05-15-1082-05-00aj
Shiwen He, Haiming Wang
PPDU Format for IEEE 802.11aj (45GHz)
Authors/contributors:
Date: 2015-05-19Presenter: Shiwen HE
Slide 1
Name Company Address Phone Email
Shiwen HE
Southeast University (SEU)
2 Sipailou, Nanjing 210096, China
+86-25-5209 1653-3121 (ext.)
Haiming WANG +86-25-5209 1653-301 (ext.)
Yongming HUANG
Guangshi YU [email protected]
Luxi YANG [email protected]
Wei HONG +86-25-5209 1650
Bo SUN ZTE [email protected]
May 2015
Submission
doc.: 05-15-1082-05-00aj
Shiwen He, Haiming Wang
Abstract
• This presentation describes the Control/SC/OFDM PHY PPDU format for IEEE 802.11aj (45GHz).
Slide 2
May 2015
Submission
doc.: 05-15-1082-05-00aj
Shiwen He, Haiming Wang
Control PHY PPDU Format• The control PHY PPDU frame is composed of the QMG
control PHY STF, QMG control PHY CEF, QMG control PHY SIG, QMG control PHY Data field, and possibly AGC and TRN-R/T subfields.
• The QMG Control PHY Short Training field (STF) is composed of a series repetitions of the sequence ZCZ of length 256.
• The QMG Control PHY Channel Estimation field (CEF) is illustrated as following figure for 540 MHz channel.
Slide 3
DataSIG AGC subfields TRN-R/T subfieldsCEFSTF
+Z256-Z256 -Z256-Z256
May 2015
Submission
doc.: 05-15-1082-05-00aj
Shiwen He, Haiming Wang
SC PHY PPDU Format• A SC PPDU frame is composed of the QMG SC PHY STF, the QMG SC
PHY CEF, the QMG SC PHY SIG field, the optional QMG SC PHY SCTF, the SC data block and the optional training fields
• The QMG SC PHY Short Training field (STF) is composed of a series repetitions of the sequence ZCZ of length 256.
• The QMG SC PHY Channel Estimation field (CEF) is illustrated in Figure 1 and Figure 2 for 540 MHz channel bandwidth and 1080 MHz channel bandwidth, respectively.
• The optional training fields may be used for Beam-forming of SC
Slide 4
BLK... AGC subfields TRN-R/T subfieldsBLKSCTFSIGCEFSTF
Figure 1 CEF for QMG SC PHY 540 MHz Channel Bandwidth
Figure 2 CEF for QMG SC PHY 1080 MHz Channel Bandwidth
+Z256-Z256 -Z256+Z256
+Z256-Z256 +Z256+Z256
May 2015
Submission
doc.: 05-15-1082-05-00aj
Shiwen He, Haiming Wang
-800 -600 -400 -200 0 200 400 600 800-100
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SC PHY PPDU Format
• Note: All fields in a SC PPDU frame are transmitted with SC transmission. For 1080MHz SC transmission, the STF fields, the CEF fields and the SIG fields are transmitted with duplicated style and the corresponding mask of the spectrum is illustrated in Figure 3.
Slide 5
Figure 3 Spectrum mask in duplicated transmission for 1080 MHz Channel Bandwidth
May 2015
Submission
doc.: 05-15-1082-05-00aj
Shiwen He, Haiming Wang
-800 -600 -400 -200 0 200 400 600 800-90
-80
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SC PHY PPDU Format• For 1080MHz SC transmission, the SCTF and the Data
fields are transmitted on the 1080MHz channel where SCTF is composed of a series repetitions of the ZCZ sequence of length 512 prepended a 128 CP.
• SCTF is only used for SC 1080MHz channel transmission and the mask of the spectrum is illustrated in Figure 4.
Slide 6
Figure 4 Spectrum mask in QMG PHY SCTF transmission for 1080 MHz Channel Bandwidth
May 2015
Submission
doc.: 05-15-1082-05-00aj
Shiwen He, Haiming Wang
OFDM PPDU Format• An OFDM PHY PPDU frame is composed of the OFDM PHY STF fields, the
OFDM PHY CEF field, the QMG OFDM PHY SIG field, the OFDM Long Training Field (MCTF), OFDM symbols and the optional training fields
• The QMG OFDM PHY Short Training field (STF) is composed of a series repetitions of the ZCZ sequence of length 256.
• The QMG OFDM PHY Channel Estimation field (CEF) is illustrated in Figure 5 and Figure 6 for 540 MHz channel bandwidth and 1080 MHz channel bandwidth, respectively.
• The STF, CEF and SIG are transmitted with SC modulation. For 1080MHz channel bandwidth, the STF, CEF and SIG are transmitted with duplicated method and SC modulation
• The optional training fields may be used for Beam-forming of OFDM
Slide 7
Figure 5 CEF for QMG OFDM PHY 540 MHz Channel Bandwidth
Figure 6 CEF for QMG OFDM PHY 1080 MHz Channel Bandwidth
Sym... AGC subfields TRN-R/T subfieldsSymMCTFSIGCEFSTF
-Z256-Z256 +Z256+Z256
-Z256-Z256 +Z256-Z256
May 2015
Submission
doc.: 05-15-1082-05-00aj
Shiwen He, Haiming Wang
Thanks for your attention.
Slide 8