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Doc.: IEEE 802.11-13/0290r0 SubmissionSlide 1 RAW Operation Improvement Date: 2013-03-18 Authors: NameAffiliationAddressPhoneEmail Yuan ZhouI2R1 Fusionopolis.

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Presentation on theme: "Doc.: IEEE 802.11-13/0290r0 SubmissionSlide 1 RAW Operation Improvement Date: 2013-03-18 Authors: NameAffiliationAddressPhoneEmail Yuan ZhouI2R1 Fusionopolis."— Presentation transcript:

1 doc.: IEEE 802.11-13/0290r0 SubmissionSlide 1 RAW Operation Improvement Date: 2013-03-18 Authors: NameAffiliationAddressPhoneEmail Yuan ZhouI2R1 Fusionopolis Way, Singapore +65 6408 2472yzhou@i2r.a-star.edu.sg Zander LeiI2R Shoukang ZhengI2R Haiguang WangI2R Yeow Wai LeongI2R ChaoChun Wang MediaTek chaochun.wang@mediatek.com James YeeMediaTek james.yee@mediatek.com Simone MerlinQualcomm 5775 Morehouse Dr, San Diego, CA 8588451243smerlin@qualcomm.com Minyoung ParkIntel Corp.minyoung.park@intel.com Jianhan LiuMediaTek jianhan.liu@mediatek.com Vish PonnampalamMediaTek vish.ponnampalam@mediatek.com James WangMediaTek james.wang@mediatek.com Y. Zhou, I2R March 2013

2 doc.: IEEE 802.11-13/0290r0 SubmissionSlide 2Y. Zhou, I2R NameAffiliationAddressPhoneEmail Huairong Shao Samsung Chiu NgoSamsungchiu.ngo@samsung.com Hongyuan ZhangMarvellHongyuan@marvell.com Su Khiong YongMarvellskyong@marvell.com Sudhir SrinivasaMarvellsudhirs@marvell.com Sayantan Choudhury Nokia2075 Allston Way, Suite 200, Berkeley, CA 94704 +1 510 599 9268 sayantan.choudhury@nokia.com Klaus DopplerNokia Chittabrata GhoshNokia Esa TuomaalaNokia Sun, Bo ZTE sun.bo1@zte.com.cn Lv, Kaiying ZTE lv.kaiying@zte.com.cn Tom TetzlaffIntel Corp.thomas.a.tetzlaff@intel.com Emily QiIntel Corp.emily.h.qi@intel.com Yongho SeokLG ElectronicsLG R&D Complex Anyang-Shi, Kyungki-Do, Korea +82-31-450-1947yongho.seok@lge.com Jinsoo ChoiLG Electronics Jeongki KimLG Electronics Jin Sam KwakLG Electronics March 2013

3 doc.: IEEE 802.11-13/0290r0 SubmissionSlide 3 NameAffiliationAddressPhoneEmail Matthew FischerBroadcom190 Mathilda Place, Sunnyvale, CA +1 408 543 3370mfischer@broadcom.com Eric WongBroadcomewong@broadcom.com Yong LiuBroadcomyongliu@broadcom.com Rojan ChitrakarPanasonicRojan.Chitrakar@sg.panasonic.com Ken MoriPanasonicMori.ken1@jp.panasonic.com Alfred AsterjadhiQualcomm Amin JafarianQualcomm Santosh AbrahamQualcomm Menzo WentinkQualcomm Hemanth SampathQualcomm VK JonesQualcomm Minho CheongETRI 138 Gajeongno, Yuseong-gu, Dajeon, Korea +82 42 860 5635 minho@etri.re.kr Jae Seung LeeETRI jasonlee@etri.re.kr Hyoungjin KwonETRI kwonjin@etri.re.kr Jaewoo ParkETRI parkjw@etri.re.kr Sok-kyu LeeETRI Sk-lee@etri.re.kr Y. Zhou, I2R March 2013

4 doc.: IEEE 802.11-13/0290r0 SubmissionSlide 4 NameAffiliationAddressPhoneEmail George CalcevHuaweiRolling Meadows, IL USAGeorge.Calcev@huawei.com Osama Aboul MagdHuaweiOsama.AboulMagd@huawei.com Young Hoon KwonHuaweiYounghoon.Kwon@huawei.com Betty ZhaoHuaweiBetty.Zhao@huawei.com David YangxunHuaweiDavid.Yangxun@huawei.com Bin ZhenHuaweiZhenBin@huawei.com Anna PantelidouRenesas Mobile Juho PirskanenRenesas Mobile Timo KoskelaRenesas Mobile Liwen ChuSTMicroelectronics George VlantisSTMicroelectronics Y. Zhou, I2R March 2013

5 doc.: IEEE 802.11-13/0290r0 Submission Introduction We propose one simple improvement to RAW PS-IE –Include 1-bit field in RAW PS-IE to reduce overall RAW PS-IE overhead Slide 5Y. Zhou, I2R March 2013

6 doc.: IEEE 802.11-13/0290r0 Submission Background: Current RAW-PS IE FeatureValueInterpretation Page IDTBD bitsIndicates the page index for hierarchical AID (based on hierarchical AID) of the allocated group Block OffsetTBD bitsAssuming 32 blocks per page, these bits indicate the starting block index of the allocated group Block RangeTBD bitsIndicates the number of blocks (starting from the block offset) for the allocated group RAW Start Time8 bitsDuration in TU from end of beacon transmission to RAW Start time RAW DurationTBD bits Duration of RAW in TU Access restricted to paged STA only 2 bitsBit 1: Set to 1 if only STA with their TIM bit set to 1 are allowed to perform UL transmissions Bit 2: Set to 1 if RAW is reserved for frames with duration smaller than slot duration, such as PS-Polls / trigger frames (ignored if Bit 1 is not set) Group/Resource allocation frame indication 1 bitSet to 1 to indicate if STAs need to wake up at the beginning of the RAW to receive group addressed frames such as resource allocation (format of the resource allocation frame TBD) Slot definitionTBD bitsInclude Slot duration signaling Slot assignment to STA Cross boundary transmissions allowed/not allowed Format is TBD Slide 6Y. Zhou, I2R March 2013

7 doc.: IEEE 802.11-13/0290r0 Submission Background: Current Multiple RAW Examples RAW1 P RAW2 D PP D D AID1 AID3 AID9 B First RAW can be used for slotted poll / trigger. Subsequent RAW(s) are used for scheduled data delivery. Two-RAW [1] Three-RAW [2] Slide 7Y. Zhou, I2R March 2013

8 doc.: IEEE 802.11-13/0290r0 Submission Problem Channel access for the same group of STAs may span across multiple RAWs. Each RAW is indicated by a single RAW assignment definition –Multiple RAW assignment definitions are needed to support multi-RAW operation Some information in these RAW assignment definitions is redundant –Page ID, block offset, and block range indicate the same RAW group of STAs and may be redundant Signaling overhead in RAW operation indication should be reduced Slide 8Y. Zhou, I2R March 2013

9 doc.: IEEE 802.11-13/0290r0 Submission Proposal Combine multiple RAW assignment definitions addressing the same group of STAs –Add one bit into each RAW assignment definition to indicate ‘same group’ Same group = 1: “RAW group” field is not present in the current RAW definition and the RAW group is the same as previous one Same group = 0: “RAW group” field is present, indicating different RAW group from previous one Element IDLengthRAW definition RAW 1 definitionRAW 2 definition…RAW N definition Same groupRAW groupRAW operating parameters Same group = 0 Same group = 1 Same groupRAW operating parameters Slide 9Y. Zhou, I2R March 2013

10 doc.: IEEE 802.11-13/0290r0 Submission Straw Poll Do you support to include 1-bit ‘same group’ indication in RAW parameter set IE as in slide 9 to combine multiple RAW definitions of the same group of STAs? –Y –N –A Slide 10Y. Zhou, I2R March 2013

11 doc.: IEEE 802.11-13/0290r0 Submission References [1] IEEE 802.11-12/0831r0: Uplink channel access general procedure. [2] IEEE 802.11-12/1308r0 : Uplink data indication [3] IEEE 802.11-12/1321r0 : RAW slot assignment Slide 11Y. Zhou, I2R March 2013

12 doc.: IEEE 802.11-13/0290r0 Submission Backups Slide 12Y. Zhou, I2R March 2013

13 doc.: IEEE 802.11-13/0290r0 Submission Background: Current Slot Assignment Examples RAW slot assignment based on RAW-PS IE [3] RA indication = 0 Slot Boundary Slot Boundary Slot Boundary Slot Boundary Slot Boundary Slot Boundary Beacon -TIM IE -RAW Parameter Set IE … Slot i RPS IE RAW1 P RAW2 D PP D D AID1 AID3 AID9 B RA = 1 RAW with resource allocation (RA) frame [1] Slide 13 Y. Zhou, I2R March 2013

14 doc.: IEEE 802.11-13/0290r0 Submission Overhead Reduction Savings for each RPS-IE: –AID range: 2 bytes E.g. Two-RAW operation: –Current: 2+8*2 = 18 bytes. –Proposed: 2+2+6*2=16 bytes. –Total saving: 2 bytes (11.1%) E.g. Three-RAW operation –Current: 2+8*3=26 bytes. –Proposed: 2+2+6*3 = 22 bytes. –Total saving: 4 bytes (15.4%) FeatureValue IE type8 bits IE length8 bits Page ID2 bits Block Offset5 bits Block Range5 bits Reserved4 bits RAW Start Time8 bits RAW Duration8 bits Channel8 bits Access restriction2 bits Group/RA frame indication1 bit Same group indication1 bits Slot definition12 bits AP doze8 bits Total:72 bits Number of bits used for calculation (for illustration ) 2 bytes 6 bytes Slide 14Y. Zhou, I2R March 2013

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