Doc.:IEEE 802.11-09/0536r0 Submission May 11th, 2009 Slide 1 OBSS issue in 802.11ac Authors: Date: 2009-05-11.

Slides:

Advertisements

Similar presentations

Doc.: IEEE /1464r0 Submission November 2011 Yasuhiko Inoue (NTT), et. al.Slide 1 The better spectrum utilization for the future WLAN standardization.

Advertisements

Doc.: IEEE /0871r0 Submission Jul 2013 Timo Koskela, Renesas Mobile CorporationSlide 1 Discussion on Potential Techniques for HEW Date:

Submission doc.: IEEE /1225r1 Considerations on CCA for OBSS Opearation in ax Date: Slide 1Huawei Authors:

Doc.: IEEE /0543r0 Submission May 2015 TG ax Scenarios Proposed additions for frequency re-use Date: Authors: Graham Smith, SR TechnologiesSlide.

Doc.:IEEE /1159r1 Submission Laurent Cariou Sept, 2010 Slide 1 Non contiguous additional bandwidth mode Date:

Doc.: IEEE /1207r1 Submission Imad Jamil (Orange)Slide 1 OBSS reuse mechanism which preserves fairness Date: Authors: September 2014.

Submission doc.: IEEE /0353r1 March 2015 Jinsoo Ahn, Yonsei UniversitySlide 1 OFDMA Non-contiguous Channel Utilization Date: Authors:

Discussion on OFDMA in IEEE ax

Submission doc.: IEEE /0623r1 May 2015 Guido R. Hiertz, Ericsson et al.Slide 1 TGax simulation scenario “Box 5” – calibration results Date:

Submission doc.: IEEE 11-12/279r0 March 2012 Jarkko Kneckt, NokiaSlide ai simulations Date: Authors:

Doc.: IEEE /0107 Jan 2014 SubmissionYonggang Fang et. al. (ZTE) HEW Evaluation Metrics Date: Slide 1 Authors: NameAffiliationAddress .

Submission doc.: IEEE /870r2 July 2015 Guido R. Hiertz et al., EricssonSlide ax in 2.4 GHz Date: Authors:

Submission doc.: IEEE 11-10/1293r0 November 2010 B. A. Hirantha Sithira Abeysekera, NTT Performance evaluation of MU-RTS under OBSS environment Slide 1.

Doc. No. IEEE hew-r1 Submission July 2013 Klaus Doppler, NokiaSlide 1 Evaluation Criteria and Simulation Scenarios Date: July 16, 2013 Authors:

Submission doc.: IEEE /1179r0 September 2014 Gwangzeen Ko, ETRISlide 1 Considerations for Partial Band Interference between WLAN Systems Date:

Doc.: IEEE /0831r0 Submission July 2010 Yusuke Asai (NTT)Slide 1 Frame Sequence of Interference Management Using Beamforming Technique in OBSS.

Doc.: IEEE /0065r0 Submission January 2014 William Carney, SONYSlide 1 Comments on Draft HEW PAR Date: Authors:

Doc.: IEEE /0068r0 Submission Discussions on the better resource utilization for the next generation WLANs January 2012 Yasuhiko Inoue (NTT),

Doc.: IEEE /1207r0 Submission Imad Jamil (Orange)Slide 1 OBSS reuse mechanism which preserves fairness Date: Authors: September 2014.

Doc.:IEEE /0630r1 Submission May 14th, 2009 NamesSlide 1 Importance of Overlapped BSS issue in ac Authors:

Submission doc.: IEEE /1289r2 Michelle Gong, IntelSlide 1 RTS/CTS Operation for Wider Bandwidth Date: Authors: Nov

Doc.: IEEE /0542r0 SubmissionSimone Merlin, QualcommSlide 1 HEW Scenarios and Goals Date: Authors: May 2013.

July 2009 Minho Cheong, ETRI and Peter Loc, RalinkSlide 1 Supporting Document for TGac Evaluation Methodology Authors: doc.:IEEE /0838r0 Submission.

Doc.: IEEE /0161r1 Submission doc.: IEEE /1031r0 Measurement results for OBSS in home network scenarios Date: September 2009.

Discussion on ax functional requirements

Doc.: IEEE /1086r0 SubmissionSlide 1 Date: Authors: Improved Virtual Carrier Sensing Mechanism for 45GHz Sep ZTE Corp.

Doc.: IEEE /0341r2 Submission March 2011 MediaTek, Inc Slide 1 Usage Cases for ah Date: Authors:

Doc.:IEEE /0134r0 Submission Laurent Cariou January 18, 2010 Slide 1 Fast session transfer use cases Authors: Date:

Doc.: IEEE /0787r1 Submission MU with Frequency Domain Multiplexing July 2010 ChaoChun Wang et al, MediaTekSlide 1 Authors:

Doc.: IEEE /0161r1 Submission doc.: IEEE /1032r0 Slide 1 Simulation Scenario for OBSS in Home Network Date: Authors: September.

Doc.: IEEE /0778r0 Submission Zhendong Luo, CATR July MHz PHY Transmission Date: Authors: Slide 1.

DL-OFDMA Procedure in IEEE ax

Performance Evaluation for 11ac

Proposed basis for PAR discussion

Requirements Discussion

Verifying 11ax’s PAR by UL MU-MIMO

CCA schemes for the 120MHz spectrum in China

TPC combined with channel allocation method for OBSS environment

Month Year doc.: IEEE yy/xxxxr0 May 2010

Consideration on Interference Management in OBSS

January 2012 Discussions on the better resource utilization for the next generation WLANs Date: January 17th, 2012 Authors: Name Affiliations Address Phone.

Home Network Simulation Scenario with OBSS

System Capacity Evaluation in OBSS Environment at 5 GHz band

Importance of Overlapped BSS issue in ac

Below 6GHz 11vht PAR scope and purpose discussion

Evaluation of the saturation of the 5GHz band

Terminology for AP Coordination

Evaluation of the saturation of the 5GHz band

Consideration on Interference Management in OBSS

OBSS issue and simulation scenarios in TGac

Terminology for AP Coordination

Comparison of Draft Spec Framework Documents

Month Year doc.: IEEE yy/xxxxr0 May 2010

Consideration on Interference Management in OBSS

Terminology for AP Coordination

Month Year doc.: IEEE yy/xxxxr0 May 2010

Efficient Frequency Spectrum Utilization

MU with Frequency Domain Multiplexing

RTS&CTS Exchange in wideband transmission

AP Coordination in EHT Date: Authors: Name Affiliations

System Capacity Evaluation in OBSS Environment at 5 GHz band

VHT - SG Date: Authors: July 2007 Month Year

120 MHz PHY Transmission Date: Authors: January 2010

Strawmodel ac Specification Framework

Enterprise Simulation Scenario

Enterprise Simulation Scenario

Month Year doc.: IEEE yy/xxxxr0 May 2010

AP Coordination in EHT Date: Authors: Name Affiliations

Proposed basis for PAR discussion

CCA schemes for the 120MHz spectrum in China

Presentation transcript:

doc.:IEEE /0536r0 Submission May 11th, 2009 Slide 1 OBSS issue in ac Authors: Date:

doc.:IEEE /0536r0 Submission May 11th, 2009 Slide 2 Introduction More than 1 GBps throughput with multiple STAs and more than 500Mbps throughput for each STA are required in 11ac. Following new technologies are likely to be used –Higher order MIMO (> 4x4) –Spatial Division Multiple Access (SDMA) with more than 4 AP antennas –Larger Bandwidth (80 MHz mode) –Multi frequency channel Use multiple 20 MHz channels across multiple users. Increase in the number of APs / STAs is expected.

doc.:IEEE /0536r0 Submission May 11th, 2009 Slide 3 Background Giga-bit wired network is proliferating. Giga-bit wireless access is very attractive for both the very high data rate services such as IP-TV. Efficient aggregation function is attractive for low data rate services also such as VoIP services Year Throughput (Mbps) Ethernet 1Base-T 10Base-T 100Base-T 1000Base-T 10GBase-T USB WPAN USB1.0 USB1.1 USB2.0 USB b a n ac WLAN 11ac is expected to cover from low data rate services to very high data rate services. Further increase in the throughput might be expected.

doc.:IEEE /0536r0 Submission May 11th, 2009 Slide 4 Proliferation of WLANs AP ac AP Large increase in the number of APs / STAs is expected.

doc.:IEEE /0536r0 Submission May 11th, 2009 Slide MHz mode Over size MIMO SDMA/OFDMA Others Number of available channels in 5GHz band 20MHz mode 40MHz mode 80MHz mode Frequency band allocation in Japan Only 4 channels can be used for 80MHz mode while 9 / 19 channels are available for 40 / 20 MHz mode.

doc.:IEEE /0536r0 Submission May 11th, 2009 Slide 6 OBSS in ac OBSS scenario is more likely to happen in 11ac compared to 11n due to limited. We think addressing OBSS issue in TGac is important because it highly relates to the spatial domain control. Example: Excessive NAV setting might affect throughput in the adjacent BSS. AP1 STA11 AP2 STA21STA22 Overlapped BSS BSS1BSS2 IEEE802.11acIEEE802.11a/n/ac

doc.:IEEE /0536r0 Submission May 11th, 2009 Slide 7 Possible Simulation Scenario Example of Evaluation Conditions –Number of APs = 2 Case 0: AP1:11n, AP2:11n Case 1: AP1:11ac, AP2: 11n Case 2: AP1: 11ac, AP2: 11ac –Location of APs: T.B.D. –Location of STAs: T.B.D. –Traffic from AP to STAs: T.B.D. –Traffic from STAs to AP: T.B.D. –Channel model type applied : T.B.D. Possible Requirements –Case 1 and Case2: Throughput at each AP must be equal to or higher than that of case 0. We think OBSS situation should be included in “Functional Requirements and Evaluation Methodology. ” AP1 STA11 AP2 STA21STA22 Overlapped BSS BSS1BSS2 IEEE802.11acIEEE802.11a/n/ac

doc.:IEEE /0536r0 Submission May 11th, 2009 Slide 8 Conclusions Large number of APs / STAs is expected in ac. OBSS is more likely to happen in ac compared to n. We propose addressing for OBSS issue in TGac. We also suggest the following functional requirement. “802.11ac shall maintain or increase throughput of each BSS in OBSS when some of a/n BSSs are replaced by ac BSSs.”