Status of IEEE 802.11 HEW Study Group

High Efficiency WLAN (HEW)

Osama Aboul-Magd (Huawei Technologies), Chair

Yasuhiko Inoue (NTT), Recording Secretary


The High Efficiency WLAN Study Group (HEW SG) is a study group within IEEE 802.11 working group that will consider the improvement of spectrum efficiency to enhance the system throughput/area in high density scenarios of APs and/or STAs.


The study group was created based on the following straw poll and motion:

<Straw Poll>

Do you support starting a new study group called ghigh efficiency WLANh to enhance 802.11 PHY and MAC in 2.4 and 5GHz with a focus on:

l  Improving spectrum efficiency and area throughput

l  Improving real world performance in indoor and outdoor deployments

Ø  in the presence of interfering sources, dense heterogeneous networks

Ø  in moderate to heavy user loaded APs



Request approval by IEEE 802 LMSC to form an 802.11 Study Group to consider High-efficiency WLAN [as described in doc 11-13-0339r2] with the intent of creating a PAR and five criteria.


March 2014 – Beijing, China

HEW study group had seven sessions during the week.

































Main documents

l  Agenda: 11-14/0219r4, HEW SG March 2014 Meeting Agenda

l  Closing report: 11-14/0457r0, HEW SG March 2014 Closing Report

l  Draft minutes: 11-14/0380r0, March 2014 Beijing Meeting Minutes



1.        The group approved minutes from the January 2014 Los Angeles meeting and teleconferences on February 6th 2014 and February 13th 2014.

l  11-14/0199r0, January 2014 Los Angeles Meeting Minutes

l  11-14/0229r2, Minutes from the teleconference on February 6th, 2014

l  11-14/0242r0, Minutes from the teleconference on February 13th, 2014


2.        Addressed comments related to the PAR and CSD received from individuals and other IEEE 802 WGs. Resolutions of comments are contained in the following document:



3.        Updated the PAR and the CSD documents based on received comments:




4.        The group passed motions to approve revised PAR and CSD documents, and SG extension.

l  Revised PAR (11-14/0165r1):         Y/N/A = 94/0/1,   Pass

l  Revised CSD (11-14/0169r1):         Y/N/A = 97/0/1,   Pass

l  SG extension:                                  Y/N/A = 105/0/0, Pass

l  HEW SG has completed its work and the IEEE standard board approved 802.11ax project.


5.        The group received more than 30 submissions in the categories of simulation scenarios, evaluation methodologies, channel models, functional requirements, technologies and selection procedure.@Following submissions have been presented and discussed during the week.

l  11-13/1359r1, gHEW-Evaluation-Methodologyh Ron Porat (Broadcom)

l  11-14/0112r1, gWi-Fi interference measurements in Korea - part IIh, Minho Cheong (NEWRACOM)

l  11-14/0113r1, gModeling of additional channel loss in dense WLAN environmentsh, Minho Cheong (NEWRACOM)

l  11-14/0294r2, gDSC Channel Selection and Legacy Sharingh Graham Smith (DSP Group)

l  11-14/0301r0, gMulticast Considerations for HEWh, Eisuke Sakai (Sony Corporation)

l  11-14/0306r0, gDiscussions on HEW Functional Requirementsh, Lei Wang (Marvell)

l  11-14/0307r0, gPHY Calibration Resultsh, Nihar Jindal (Broadcom)

l  11-14/0328r2, gDense Apartment Complex Throughput Calculationsh, Graham Smith (DSP Group)

l  11-14/0329r0, gChannel Models for different links in Simulationsh, Kaushik Josiam (Samsung)

l  11-14/0330r3, gHEW PHY Abstractionh, Sameer Vermani (Qualcomm)

l  11-14/0335r0, gInstantaneous SINR Calibration for System Simulationh, Yakun Sun (Marvell)

l  11-14/0336r0, gCalibration of Long-Term SINR for System Simulatorh Yakun Sun (Marvell)

l  11-14/0339r0, gA simplified STR Mechanismh, Raja Banerjea (CSR)

l  11-14/0340r0, gA simplified STR Mechanism – MACh, Raja Banerjea (CSR)

l  11-14/0342r0, gShort Packet Optimizationsh, Naveen Kakani (CSR, Inc)

l  11-14/0345r1, gJoint Coding and Modulation Diversity with RBD pre-coding for next generation WLANh, Zhanji Wu (BUPT)

l  11-14/0350r0, gSuggestion on Evaluation Methodologyh, Jinyoung Chun (LG Electronics)

l  11-14/0352r0, gDiscussion on power save mode for real time traffich, Giwon Park (LG Electronics)

l  11-14/0353r0, gSuggestion on PHY Abstraction for Evaluation Methodologyh, Dongguk Lim (LG Electronics)

l  11-14/0355r0, gSimulation Scenario 1 Revisedh, Simone Merlin (Qualcomm)

l  11-14/0356r0, gCalibration of System Level Simulatorsh, Jarkko Kneckt (Nokia)

l  11-14/0357r0, gUtilizing Unused Resources for Simultaneous Transmissionsh, Jarkko Kneckt (Nokia).

l  11-14/0365r0, gExtended Intra-Vehicle Channel Modelh, Igal Kotzer (General Motors)

l  11-14/0372r2, gSystem level simulations on increased spatial reuseh, Liwen Chu (Marvell)

l  11-14/0373r1, gEnergy Efficiency in HEWh, Pingping Xu, Wei Wang (Southeast University )

l  11-14/0381r0, gStadium scenario for HEWh, Johan Soder, Filip Mestanov (Ericsson AB)

l  11-14/0383r0, hConsiderations on evaluation methodology for candidate HEW PHY&MAC techniquesh, Le Liu (Huawei)

l  11-14/0385r0, gSimulation Methodology and Calibrationh, Gwen Barriac (Qualcomm)

l  11-14/0386r0, gDiscussions on MCS selectionh , Tianyu Wu (MediaTek)

l  11-14/0392r0, gTraffic Separation Scheme for Optimizing WLANs using PHY and MAC optionsh, Takayuki Nishio (Kyoto University)

l  11-14/0393r0, gPossible Indoor Channel Models for HEW System Simulationsh, Leif Wilhelmsson (Ericsson AB).

l  11-14/0419r0, g802.11ax Spec Development Process Proposalh, Rolf de Vegt (Qualcomm)


Goals for May 2014

l  Meet as a new TG and will have officer elections.

l  Continue the work on simulation scenarios, evaluation methodologies, channel models, and function requirements.



l  One teleconference planned before the May 2014 session.

²  Thursday,     April 17th,            10:00 – 12:00 (ET)

²  Details to be announced.


January 2014 – Los Angeles, CA

HEW study group had nine sessions during the week.

































Main documents

l  Agenda: 11-13/1506r5, HEW SG January 2014 Meeting Agenda

l  Closing report: 11-14/0187r0, HEW SG January 2014 Closing Report

l  Draft minutes: 11-14/0199r0, January 2014 Los Angeles Meeting Minutes



1.        The group approved minutes from the November 2013 Dallas meeting and teleconferences on December 4th 2013, December 18th 2013 and January 8th, 2014..

l  11-13/1465r1, November 2013 Dallas Meeting Minutes

l  11-13/1495r0, Minutes from the teleconference on December 4th, 2013

l  11-13/1532r1, Minutes from the teleconference on December 18th, 2013

l  11-14/0024r1, Minutes from the teleconference on January 8th, 2014


2.        The group resolved open issues related to the PAR and CSD.


3.        The group received 28 submissions that were categorized into (1) PAR and 5 Criteria related submissions, and (2) Best Effort submissions. Best Effort submissions basically related to simulation scenario and evaluation methodology.

l  PAR and 5 Criteria related submissions

²  11-13/1410r6, g802.11 HEW Draft PAR and 5Ch, Osama Aboul-Magd and All

²  11-13/1489r5, gAirport Capacity Analysish, Graham Smith (DSP Group)

²  11-14/0026r1, gthoughts on hew parh, Yong Liu (Apple)

²  11-14/0045r2, gE-Education Analysish, Graham Smith (DSP Group)

²  11-14/0058r1, gPico Cell Use Case Analysis g, Graham Smith (DSP Group)

²  11-14/0061r0, gSome findings from real world measurementh, Katsuo Yunoki (KDDI Labs)

²  11-14/0065r1, gComments on Draft HEW PARh, Bill Carney (SONY)

²  11-14/0101r2, gComments on 802.11 HEW Draft PAR & 5Ch, Rakesh Taori (Samsung Electronics)

²  11-14/0106r0, gDiscussion on HEW PARh, Kiseon Ryu (LG Electronics)

²  11-14/0119r2, gSuggested PAR Changesh, James Yee (MediaTek)

²  11-14/0163r1, gRaising the PARh, Mat Fischer (Broadcom)


l  Best Effort submissions

²  11-14/0043r2, gPHY abstraction in system level simulation for HEW studyh, Fei Tong (Samsung)

²  11-14/0051r0, gWireless Office with Interferenceh, David Xun Yang (Huawei)

²  11-14/0053r0, gFurther Considerations on Calibration of System Level Simulationh, Jiayin Zhang (Huawei)

²  11-14/0056r1, gTraffic Model on Virtual Desktop Infrastructureh, Yingpei Lin (Huawei)

²  11-14/0059r1, gIntegrated System Level Simulationh, Jun Luo (Huawei)

²  11-14/0063r0, gDesign Challenges for 802.11 HEW Radiosh, Yu Cai (Huawei)

²  11-14/0070r0, gJoint MAC/PHY Evaluation Methodologyh, Kaushik Josiam (Samsung)

²  11-14/0082r0, gImproved Spatial Reuse Feasibility – Part Ih, Ron Porat (Broadcom)

²  11-14/0083r0, gImproved Spatial Reuse Feasibility – Part IIh, Ron Porat (Broadcom)

²  11-14/0086r2, gOutdoor AP Measurement in Tokyoh, Tsugu Aoki (Toshiba)

²  11-14/0088r0, gIntra-Vehicular Channel Modelh, Igal Kotzer (General Motors)

²  11-14/0095r0, gOFDM-IDMA Uplink Communicationh, Leonardo Lanante (Kyushu Inst. Of Tech)

²  11-14/0107r0, gHEW Evaluation Metricsh, Yonggang Fang (ZTETX)

²  11-14/0116r1, gLong-Term SINR Calibration for System Level Simulationh, Yakun Sun (Marvell)

²  11-14/0117r0, gPHY Abstraction for HEW System Level Simulationh, Yakun Sun (Marvell)

²  11-14/0118r0, gConsideration on System Level Simulationh, Jinsoo Chio (LG Electronics)


4.        The group passed motions to approve PAR and CSD.

l  PAR: 11-14/0165r0, IEEE 802.11 HEW SG Proposed PAR

l  CSD: 11-14/0169r0, IEEE 802.11 HEW SG Proposed CSD


Goals for the March 2014 Meeting

l  Resolve comments expected from EC members and other IEEE 802 WGs

l  Continue with presentations relevant to the SG topics.

²  Simulation scenarios

²  Evaluation Methodologies

²  Channel Models

²  Technology

²  etc.



The group agreed to have four teleconferences before the March 2014 meeting.

l  Thursday, February 6th, 2014: 20:00 – 22:00 (ET)

l  Thursday, February 13th, 2014: 10:00 – 12:00 (ET)

l  Thursday, February 20th, 2014: 10:00 – 12:00 (ET)

l  Thursday, February 27th, 2014: 20:00 – 22:00 (ET)


November 2013 – Dallas, TX

HEW study group had ten sessions during the week.




























Main documents

l  Agenda: 11-13/1263r5, HEW SG November 2013 Meeting Agenda

l  Closing report: 11-13/1476r1, HEW SG November 2013 Closing Report

l  Draft minutes: 11-13/1465r1, November 2013 Dallas Meeting Minutes



1.        The group approved minutes from the September 2013 Nanjing meeting and teleconferences on October 3rd and October 30th, 2013.

l  11-13/1117r1, September 2013 Nanjing Meeting Minutes

l  11-13/1275r1, Minutes from the teleconference on October 3rd , 2013

l  11-13/1303r0, Minutes from the teleconference on October 30th, 2013


2.        The group received more than 40 submissions that were categorized into three categories, i.e., (1) Channel Mode/Simulation Scenarios and Evaluation Methodologies, (2) MAC/PHY technologies and (3) PAR proposals. Following submissions were presented during the week.

l  Channel Models, Simulation Scenarios and Evaluation Methodologies

²  11-13/1001r5, gHEW SG Simulation Scenariosh, Simone Merlin (Qualcomm)

²  11-13/1305r0, gSimplification on HEW traffic modelsh, Bill Carney (Sony)

²  11-13/1334r5, 11-13/1335r4, gVideo Traffic Modelingh, Guiqing Li (Intel)

²  11-13/1359r0, gHEW Evaluation Methodologyh, Ron Porat (Broadcom)

²  11-13/1370r0, gLTE OOB Interference to 2.4 GHz Bandg, Yonggang Fang (ZTE TX)

²  11-13/1376r3, gDiscussions on Penetration Lossh, Jianhan Liu (MediaTek)

²  11-13/1380r0, gOutdoor Channel Model Simulation Follow-uph, Hongyuan Zhang (Marvell)

²  11-13/1383r0, gSystem Level Simulation Parametersh, Wookbong Lee (LG Electronics)


²  11-13/1387r1, gHEW channel modeling for system level simulationh, Yan Zhang (Marvell)

²  11-13/1390r0, gPHY Abstraction for HEW System Level Simulationsh, Yakun Sun (Marvell)

²  11-13/1391r0, gAbout SINR conversion for PHY Abstractionh, Yakun Sun (Marvell)

²  11-13/1392r0, gMethodology of Calibrating System Level Simulation Resultsh, Yakun Sun (Marvell)

²  11-13/1401r0, gSystem Level Assessments for Outdoor HEW Deploymentsh, Kaushik Josiam (Samsung)

²  11-13/1406r0, gTraffic Modeling for HEW Simulationsh, Huai-Rong Shao (Samsung)

²  11-13/1407r0, gSimulation based study of QoEh, Chao-Chun Wang (MediaTek)

²  11-13/1412r0, gHow to use simulation scenarios in HEWg, Minho Cheong (ETIR)

²  11-13/1419r1, gModifications to ITU Channel Model to Support 160MHz bandwidth of operationh, Shahrnaz Azizi (Intel)

²  11-13/1420r1, gHEW Considerations for the Vehicular Environmenth, Igal Kotzer (General Motors)

²  11-13/1438r0, gTraffic Observation and Study on Virtual Desktop Infrastructureh, Phillip Barber (Huawei Technologies)

²  11-13/1456r1, gConsiderations on WFA feedbackg, Simone Merlin (Qualcomm)


l  MAC/PHY Technologies

²  11-13/1325r5, gIEEE 802.11ai overviewh, Hiroshi Mano (ATRD), chair of TGai

²  11-13/1349r0, gAccess Control Enhancementh, Katsuo Yunoki (KDDI)

²  11-13/1375r1, gSummary and Discussions of Proposals on Potential PHY Technologies in HEWh, Jianhan Liu (MediaTek)

²  11-13/1377r0, gDL efficiency enhancement in high density networkh, Kiseon Ryu (LG Electronics)

²  11-13/1382r0, gDiscussion on OFDMA in HEWh, Jinsoo Choi (LG Electronics)

²  11-13/1386r2, gImproving WLAN Efficiency and QoE – A Top Down Approachh, Veli-Pekka Kentonen (7 Signals)

²  11-13/1388r0, gUL MU-MIMO transmissionh, Jinyoung Chun (LG)

²  11-13/1395r2, gSimultaneous Transmission Technologies for HEWh, Koichi Ishihara (NTT)

²  11-13/1409r0, gDual Wi-Fi: Dual Channel Wi-Fi for Congested WLANs with Asymmetric Traffic Loadsh, Adriana Flores (Rice University)

²  11-13/1421r1, gSTR Radios and STR Media Accessh, Phillip Levis (Stanford University)

²  11-13/1440r0, gArgos | Practical Masive-MIMOh, Clayton Shepard (Rice University)


l  PAR proposals

²  11-13/1331r2, gProposed direction and priorities for HEWh, Guido R. Hiertz (Ericsson)

²  11-13/1333r0, gPower Efficiency PAR Requirementsh, Chris Hansen (Covariant)

²  11-13/1366r3, gSome propositions to progress towards the PAR definitionh, Laurent Cariou (Orange)

²  11-13/1361r0, gDiscussion to derive HEW Functional Requirementsh, Yasunao Misawa (KDDI)

²  11-13/1389r1, gDiscussion on HEW PARh, HanGyu Cho (LG Electronics)

²  11-13/1397r0, gRenewing 2.4 GHzh, Brian Hart (Cisco Systems)

²  11-13/1398r0, gRequirements for HEWh, Akira Yamada (NTT DOCOMO)

²  11-13/1404r0, gSome Thoughts on PARh, and 11-13/1405r0, gHEW PARh, Eldad Perahia (Intel)

²  11-13/1450r0, gSummary of PAR Discussionsh, Osama Aboul-Magd (HEW SG chair)

²  11-13/1470r1 and 11-13/1471r1, g802.11 HEW proposed basis for PAR discussionh, Laurent Cariou (Orange)


3.        Discussed the WFA feedback on prioritization of the usage cases and approved a liaison letter back to WFA.

l  Feedback from Wi-Fi Alliance:

²  11-13/1443r0, Liaison from Wi-Fi Alliance - HEW Use Cases

l  Approved a liaison document to Wi-Fi Alliance:

²  11-13/1446r0, IEEE 802.11 Liaison to WFA on Prioritization of High Efficiency WLAN (HEW) Usage Scenarios


4.        Started the discussion on the PAR.

5.        The group passed a motion to extend the study group by 136/0/2.


Goals for the January 2014

l  Progress the work on the PAR and 5C.



The group agreed to have three teleconferences before the January 2014 meeting.

l  Wednesday, December 4th, 2013: 10:00 – 12:00 (ET)

l  Wednesday, December 18th, 2013: 20:00 – 22:00 (ET)

l  Wednesday, January 8th, 2014: 10:00 – 12:00 (ET)


September 2013 – Nanjing, China


HEW study group had nine sessions during the week.

































Main documents

l  Agenda: 11-13/0951r7

l  Closing report: 11-13/1231r1

l  Draft minutes: 11-13/1117r1



1.        The group approved minutes from the Geneva meeting and teleconference on August 28th, 2013.

l  11-13/0861r1, Minutes from face-to-face meeting in Geneva, July 2013

l  11-13/1003r0, Minutes from the teleconference on August 28th, 2013

2.        50 submissions in the following categories were received and presented during the week.

l  Channel Models (CM)

²  11-13/0996r2, gOutdoor Channel Model Candidates for HEWh, Kaushik Josiam (Samsung)

²  11-13/1113r0, gChannel Modeling for Dense Wi-Fi Environmentsg, Minho Cheong (ETRI)

²  11-13/1125r3, gHEW Outdoor Channel Model Discussionsh, Hongyuan Zhang (Marvell)

²  11-13/1135r4, gSummary of HEW Channel Modelsh, Jianhan Liu (MediaTek)

²  11-13/1146r1, gUpdate on HEW Channel Modelh, Shahrnaz Azizi (Intel Corp)


l  Simulation Scenarios/Simulation Methodologies (SS/SM)

²  11-13/1000r2, gSimulation Scenariosh, Simone Merlin (Qualcomm)

²  11-13/1001r2, gSimulation Scenarios Document Templateh, Simone Merlin (Qualcomm)

²  11-13/1079r0, gOutdoor Stadium Simulation Details Discussionh, Joseph Levy (InterDigital)

²  11-13/1080r0, gMarkov Modeling of the Channel for HEW System Level Simulationsh, Joseph Levy (InterDigital)

²  11-13/1081r0, gHEW Simulation Methodologyh, Sayantan Choudhury (Nokia).

²  11-13/1083r0, gHEW SG Unified Simulation Scenariosh, David Xun Yang (Huawei)

²  11-13/1114r1, gSimulation Scenario for unplanned Wi-Fi Networkh, Jae Seung Lee (ETRI)

²  11-13/1123r1, gCapacity Simulation of High Density Indoor WLAN Systemsh, Filip Mestanov (Ericsson AB)

²  11-13/1133r0, gVirtual Desktop Infrastructure (VDI)h, Yingpei Lin (Huawei Technologies)

²  11-13/1153r0, gSimulation Scenario Proposalh, Laurent Cariou (Orange)

²  11-13/1159r1, gVideo Performance Requirements and Simulation Parametersh, Guoqing Li (Intel)

²  11-13/1162r1, gVideo Application Categories and Characteristicsh, Guoqing Li (Intel)

²  11-13/1176r0, gSome Simulation Scenarios for HEWh, Reza Hedayat (Cisco)


l  Evaluation Methodologies (EM)

²  11-13/1051r1, gEvaluation Methodologyh, Ron Porat (Broadcom)

²  11-13-1054r1, gHEW Evaluation Metrics Suggestionsh, Yonggang Fang (ZTETX)

²  11-13/1059r0, gPHY Abstraction for HEW Evaluation Methodologyh, Dongguk Lim (LG Electronics)

²  11-13/1131r0, gPHY Abstraction for HEW System Level Simulationh, Jiayin Zhang (Huawei Technologies)

²  11-13/1137r2, gThe Definition of Performance Metrics for HEWh, Haui-Rong Shao (Samsung)

²  11-13/1144r1, gSimplified Traffic Model Based on Aggregated Network Statisticsh, William Carney (Sony)

²  11-13/1158r0, gVideo Traffic and Applications for HEWh, William Carney (Sony)


l  Functional Requirements (FR)

²  11-13/1097r0, gFunctional Requirements for HEW PARh, Minho Cheong (ETRI)

²  11-13/1116r0, gDiscussion on HEW Functional Requirementsh, Jinsoo Choi (LG Electronics)


l  MAC/PHY Technologies (TECH)

²  11-13/1046r2, gDiscussion for Massive MIMO for HEWh, Zhigang Wen (BUPT)

²  11-13/1056r1, gEnhancement on resource utilization in OBSS environmenth, Giwon Park (LG Electronics)

²  11-13/1058r0, gEfficient wider bandwidth operationh, Kiseon Ryu (LG Electronics)

²  11-13/1061r0, gMulticast Transmission for HEWh, Jeongki Kim (LG electronics)

²  11-13/1073r1, gAccess Control Enhancementg, Katsuo Yunoki (KDDI Labs)

²  11-13/1074r0, gOccupied air time calculation for doc.1073r0h, Katsuo Yunoki (KDDI R&D Laboratories)

²  11-13/1077r1, gEDCA Enhancements for HEWh, Hui Zhao (BUPT)

²  11-13/1089r1, gD2D Technology for HEWh, Xiang Gao (BUPT)

²  11-13/1090r2, gNon-linear pre-coding MIMO Scheme for next generation WLANh, Xiang Gao (BUPT)

²  11-13/1105r0, gDiscussion on Access Mechanism for HEWh, Meng Yang (CATR)

²  11-13/1122r1, gConsiderations for In-Band Simultaneous Transmit and Receive (STR) feature in HEWh, Rakesh Taori (Samsung Electronics)

²  11-13/1126r0, gBeamforming under OBSS Interferenceh, Hongyuan Zhang (Marvell)

²  11-13/1168r0, gRequirements on WLAN Ad Pushh, Hui Tian (BUPT)

²  11-13/1169r0, gWLAN Cellular Offload in High Speed Moving Environmenth, Hui Tian (BUPT)

²  11-13/1154r0, gDL-MU-MIMO Transmission with Unequal Bandwidthh, Yongming Huang (Southeast University)

²  11-13/1155r0, gSpace Division Multiplex for OBSS Interference Suppressionh, Yongming Huang (Southeast University)

²  11-13/1156r0, gTXOP Redundancy  NAV Clearh, Yongming Huang (Southeast University)

²  11-13/1157r3, gFeasibility of Coordination Transmission for HEWh, Yunzhou Li (Tsunghua University)


l  General (GEN)

²  11-13/1057r0, gLegacy support on HEW frame structureh, Wookbong Lee (LG electronics)

²  11-13/1100r0, gHEW SG Progress Reviewh, Osama Aboul-Magd (HEW SG)

²  11-13/1115r0, gPossible vision of the HEW-driven Wi-Fi 2020h, Minho Cheong (ETRI)

²  11-13/1163r0, gPAR and 5C: Comments based on 11nh, Sean Coffey (RealTek)

²  11-13/1164r1, gSome PAR and 5C Requirementsh, Paul Lambert (Marvell)


3.        Straw Polls

Several straw polls were conducted to sense the group consensus on topics related to simulation scenarios, evaluation methodologies and channel models.


4.        Timeline

The group reviewed the timeline. No changes.


5.        Teleconferences

The HEW SG agreed to have three teleconferences before the November 2013 session.

l  Wednesday, October 9th, 2013: 10:00 – 12:00 (ET)

l  Wednesday, October 17th, 2013: 00:01 – 02:00 (ET)

l  Wednesday, October 30th, 2013: 10:00 – 12:00 (ET)


Goals for the November 2013

l  Hear presentations addressing SS/SM/EM/FR/CM/TECH

Ø  Attempt to consolidate documents related to the above areas of discussion.

Ø  Priority will be given to presentations with consolidated views

l  Start discussion on PAR related issues

l  Motion for SG extension

l  WFA feedback on the usage cases


July 2013 – Geneva, Switzerland


HEW study group had nine sessions during the week.


Main documents

l  Agenda: 11-13/0664r5

l  Closing report: 11-13/0922r0

l  Draft minutes: 11-13/0861r0



1.        The group approved minutes from the face-to-face meeting in Waikoloa, HI and teleconferences held on June 5th and June 19th.

l  11-13/0560r2, May 2013 Waikoloa meeting minutes

l  11-13/0663r1, Teleconference minutes 20130605

l  11-13/0704r0, Teleconference minutes 20130619

2.        The group received over 35 submissions in areas of (1) Usage Models/Use Cases, (2) Functional Requirements, (3) Simulation Scenarios and Evaluation Methodology, (4) MAC/PHY techniques as listed below.

l  Usage Models/Use Cases

²  11-13/0657r3, gHEW SG usage models and requirements - Liaison with WFAh Laurent Cariou (Orange)

²  11-13/0795r0, gHEW Usage Scenarios Categorizationh, Eldad Perahia (Intel)

²  11-13/0802r1, gProposed re-categorization of the HEW usage modelsh, Yasuhiko Inoue (NTT)

²  11-13/0761r0, gInterference Control Use Case for HEWh, Fang Xie (CMCC)

²  11-13/0836r0, gHEW Usage Models for Backhauls and Floor Automationg, Minho Cheong (ETRI)


l  Functional Requirements

²  11-13/0787r0, gFollow up requirementsh, Wu Tianyu (Huawei)

²  11-13/0850r0, gQuantitative QoE Requirements for HEWh, Huai-Rong Shao (Samsung)

²  11-13/0798r1, gFunctional Requirements in HEWh, Jinsoo Choi (LG Electronics)

²  11-13/0840r1, gHEW Functional Requirements Follow-up (Preliminary Version for Study Group discussions)h, Minho Cheong (ETRI)


l  Simulation Scenarios and Evaluation Methodology

²  11-13/0723r1, gHEW SG Evaluation Methodology Overviewh, Minyoung Park (Intel)

²  11-13/0756r1, gHEW Channel Modelh, Vinko Erceg (Broadcom)

²  11-13/0858r0, gEnhanced Channel Model for HEWh, Shahrnaz Azizi (Intel)

²  11-13/0728r1, gNetwork Optimization for Expected HEW Traffic Patternsh, Bill Carney (Sony)

²  11-13/0869r0, gSimulation scenarios and metrics for HEWh, Thomas Derham (Orange)

²  11-13/0872r1, gClarifications on outdoor deploymentsh, Laurent Cariou (Orange)

²  11-13/0847r1, gEvaluation Criteria and Simulation Scenariosh Klaus Doppler (Nokia)

²  11-13/0786r0, gDiscussion on System Level Simulation Methodologyh Wu Tianyu (Huawei)

²  11-13/0757r1, gEvaluation Methodology and Simulation Scenariosh Nihar Jindal (Broadcom)

²  11-13/0805r2, gOn Definition of Dense Networks and Performance Metrich, Jianhan Liu (MediaTek)

²  11-13/0800r1, gHEW Study Group Documentationh, Hemanth Sampath (Qualcomm)

²  11-13/0837r0, gConsideration for HEW Evaluation Methodologyh, Minho Cheong (ETRI)


l  MAC/PHY techniques

²  11-13/0768r0, gTD-uCSMAh, Riccard Scopigno (ISMB)

²  11-13/0843r0, gFurther Evaluation on outdoor Wi-Fih, Wookbong Lee (LG Electronics)

²  11-13/0852r0, gPotential approach to improve WLAN BSS edge performanceh, Juho Pirskanen (Renesas Mobile)

²  11-13/0871r0, gDiscussion on Potential Techniques for HEWh, Timo Koskela (Renesas Mobile)

²  11-13/0877r0, gHEW Beamforming Enhancementsh, James Wang (MediaTek)

²  11-13/0764r1, gFull-duplex Technology for HEWh, Andre Bourdoux (IMEC)

²  11-13/0765r2, gFull-duplex is an emerging radio paradigm that has the potential to improve the efficiency of future WLANsh, Hongliang Bian (China Telecom)

²  11-13/0712r1, gA Brief Time of Historyh, Larry Taylor (DTC)

²  11-13/0801r1, gIssues of Low Rate Transmissionsh, Akira Kishida (NTT)

²  11-13/0758r0, gPossible Approaches for HEWh, Katsuo Yunoki (KDDI Labs)

²  11-13/0849r1, gNew Techniques: Enabling Real World Improvement By Exposing Internal MAC stateh, Brian Hart (Cisco)

²  11-13/0854r1, gConsideration on Efficiency Enhancementh, SangHyun Chang (Samsung)

²  11-13/0865r2, gVideo Data Rate for HEWh, Huai-Rong Shao (Samsung)

²  11-13/0878r0, gEfficiency enhancement for dense WLAN environmenth, Jeongki Kim (LG Electronics)


3.        The group approved document 11-13/0657r6 as HEW SG initial draft of Usage Models and to send it to Wi-Fi Alliance asking for prioritization of the use cases and additional feedbacks.


4.        The group also approved a liaison letter to the Wi-Fi Alliance contained in the document 11-13/902r1.


5.        The group passed motion to extend the SG.


6.        The group discusses the timeline.

Ø  May 2013:           Initial meeting

Ø  July 2013:            Presentations, SG extension

Ø  September 2013:  Presentations

Ø  November 2013:  Presentations, Initial PAR & 5C, SG extension

Ø  January 2014:      Presentations, Final version of PAR and 5C, WG approval

Ø  March 2014:        Presentations, EC approval of PAR and 5C

Ø  May – June 2014:              NesCom approval

Ø  July 2014:            TG starts


7.        Teleconferences

The group agreed to have two teleconferences before the September 2013 meeting.

l  Wednesday, August 7th, 2013: 10:00 – 12:00 (ET)

l  Wednesday, August 28th, 2013: 20:00 – 22:00 (ET)


Next steps

During the September 2013 meeting, the HEW SG continues discussions on issues related to:

l  Usage Models/Use Cases

l  Functional Requirements

l  Feasibility

l  Scope and Process


May 2013 – Waikoloa, HI


Main documents

l Agenda: 11-13/0400r4

l Closing report: 11-13/0624r0

l Draft minutes: 11-13/0560r2



1.        The group decided leadership structure to have one chairperson and one secretary.

Ÿ  Osama Aboul-Magd (Huawei Technologies) was elected as the chair of the HEW SG.

Ÿ  Yasuhiko Inoue (NTT) was elected as the recording secretary of the HEW SG.


2.        The group received 22 submissions as listed below.

Ÿ  Usage Models/Use Cases:

²  11-13/0514r0, gHEW Usage Scenarios and Applicationsh, Eldad Perahia (Intel)

²  11-13/0538r0, gDense apartment building use case for HEWh, Klaus Doppler (Nokia)

²  11-13/0554r0, gUse Casesh, Minho Cheong (ETRI)

²  11-13/0567r0, gProposed HEW Usage Modelsh, Yasuhiko Inoue (NTT)

²  11-13/0527r2, gUsage Models for Next Generationh, David Xun Yang (Huawei) and James Wang (MediaTek)

²  11-13/0534r1, gDirection and Use Cases for HEWh, HanGyu Cho (LG Electronics)

²  11-13/0563r0, gD2D Technology for HEWh, Zhanji Wu (BUPT) – not presented


Ÿ  Problem Statements:

²  11-13/0505r0, gMAC Efficiency Analysis for HEW SGh, Minyoung Park (Intel)

²  11-13/0545r1, gWLAN QoE, End User Perspective Opportunities to Improveh, Veli-Pekka Ketonen (7 signals)

²  11-13/0523r2, gUnderstanding Current Situation of Public Wi-Fi Usage – Possible Requirements for HEW –g, Katsuo Yunoki (KDDI Labs)

²  11-13/0539r0, gEfficient Frequency Spectrum Utilizationh, Yongho Seok (LG Electronics)

²  11-13/0544r3, gDiscussions on 11ac PHY efficiencyh, Jianhan Liu (MediaTek)

²  11-13/0536r0, gHEW SG PHY Considerations For Outdoor Environmenth, Wookbong Lee (LG Electronics)

²  11-13/0576r3, gPerformance Evaluation for 11ach, Wu Tianyu (Huawei Technologies)

²  11-13/0556r1, gWi-Fi interference measurements in Korea – Part 1h, Minho Cheong (ETRI)

²  11-13/0549r0, gA perspective on what any High Efficiency Wireless TG should and should not doh, Brian Hart (Cisco Systems)


Ÿ  Requirements:

²  11-13/0524r2, gHEW Finctional Requirementsh, Wu Tianyu (Huawei Technologies)

²  11-13/0555r2, gConsiderations on Functional Requirements for HEWh, Minho Cheoung (ETRI)


Ÿ  Scenarios and Metrics

²  11-13/0503r0, gDiscussion on Basic Technical Aspects for HEWh, Juho Pirskanen  (Renesas Mobile)

²  11-13/0542r0, gHEW Scenarios and Goalsh, Simone Merlin (Qualcomm)

²  11-13/0486r1, gHEW – Metrics, Targets and Simulation Scenariosh, Ron Porat (Broadcom)

²  11-13/0520r1, gHEW scenarios and evaluation metricsh, Thomas Derham (Orange)


Ÿ  Technical Feasibility

²  11-13/0558r1, gCoexistence and Optimization of Wireless LAN: Time,  Frequency, Space, Power, and Loadh, Jim Lansford (CSR)


3.        Liaison to the Wi-Fi Alliance

Ÿ    The group agreed to ask the Wi-Fi Alliance for input about priority of the use cases.

Ÿ    Laurent Cariou (Orange) volunteers to develop the use case document.


4.        Project planning

Ÿ    The group discussed about the project plan based on the submission 11-13/0616r2 by Phil Barber (Huawei)

Ÿ    Discussion to be continued in the July meeting.


5.        Teleconferences

Ÿ    The group agreed to have two teleconferences before the July 2013 Plenary to develop a use case document to be shared with the Wi-Fi Alliance.

²   June 5th: 10:00 – 12:00 (ET)

²   June 19th: 20:00 – 22:00 (ET)


Next Steps

l  During July 2013 session, the HEW SG will continue discussions on:

Ø  Usage Cases

Ø  Functional Requirements

Ø  Feasibility

Ø  Scope and Process


Related documents

Documents referenced in the motion that led to the creation of the study group


Press release document







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