Doc.: IEEE 802.11-10/1054-00 Submission September 2010 James Wang, MediatekSlide 1 Wide Band OBSS Friendly PSMP Date: 2010, September 13 Authors:

Slides:



Advertisements
Similar presentations
Doc.: IEEE /0315r1 Submission Mar 2008 Hart (Cisco Systems) Slide 1 Coexistence Mechanisms at 5 GHz Date: Authors:
Advertisements

Doc.: IEEE /0798r1 Submission July 2008 L. Chu Etc.Slide 1 HT Features in Mesh Network Date: Authors:
Doc.: IEEE / Submission September 2010 James Wang, MediaTekSlide 1 PSMP-Based MU-MIMO Communications Date: 2010, September 14 Authors:
Discussion on OFDMA in HEW
Doc.: IEEE /1464r0 Submission November 2011 Yasuhiko Inoue (NTT), et. al.Slide 1 The better spectrum utilization for the future WLAN standardization.
Submission doc.: IEEE /0091r1 January 2015 Woojin Ahn, Yonsei UniversitySlide 1 UL-OFDMA procedure in IEEE ax Date: Authors:
Beamformed HE PPDU Date: Authors: May 2015 Month Year
Submission doc.: IEEE /0354r1 March 2015 Woojin Ahn, Yonsei Univ.Slide 1 Bandwidth granularity on UL-OFDMA data allocation Date: Authors:
Submission doc.: IEEE /0091r0 January 2015 Woojin Ahn, Yonsei Univ.Slide 1 UL-OFDMA procedure in IEEE ax Date: Authors:
Doc.: IEEE /1431r1 Submission September 2014 Issues on UL-OFDMA Transmission Date: Authors: Slide 1.
Doc.: IEEE /1211r0 Submission September 2014 Yongho Seok, NEWRACOM Ack Procedure for OFDMA Date: Authors: Slide 1.
Uplink Multi-User MIMO Protocol Design
Doc.: IEEE 11-14/1229r1 Submission Dynamic OFDM Symbol Duration September 2014 Alan Jauh et. al., MediaTekSlide 1 Date: Authors:
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 /1208r1 September 2014 Jinsoo Ahn, Yonsei UniversitySlide 1 MAC considerations on ax OFDMA Date: Authors:
Doc.: IEEE /1303r5 Submission November 2010 Jarkko Kneckt (Nokia)Slide 1 Overlapping BSS Co-Existence Date: Authors:
Doc.: IEEE /1126r0 Submission September 2012 Krishna Sayana, SamsungSlide 1 Wi-Fi for Hotspot Deployments and Cellular Offload Date:
Submission doc.: IEEE /870r2 July 2015 Guido R. Hiertz et al., EricssonSlide ax in 2.4 GHz Date: Authors:
September 2013 doc.: IEEE 11-13/1105r0 Submission Meng Yang (CATR) Discussion on Access Mechanism for HEW Date: Authors: NameAffiliationsAddressPhone .
Doc.: IEEE /0831r0 Submission July 2010 Yusuke Asai (NTT)Slide 1 Frame Sequence of Interference Management Using Beamforming Technique in OBSS.
Submission Vida Ferdowsi, NewracomSlide 1 doc.: IEEE /0856r0July 2015 Compressed Uplink Trigger Frame Date: Authors:
Doc.: IEEE /0068r0 Submission Discussions on the better resource utilization for the next generation WLANs January 2012 Yasuhiko Inoue (NTT),
Submission doc.: IEEE 11-13/1395r2 Simultaneous Transmission Technologies for HEW Date: November 2013 Koichi Ishihara, NTTSlide 1.
Doc.: IEEE SubmissionSlide 1 Interleavers for 160MHz Transmission Date: Authors: Mediatek.
Submission doc.: IEEE /1289r2 Michelle Gong, IntelSlide 1 RTS/CTS Operation for Wider Bandwidth Date: Authors: Nov
Submission doc.: IEEE /1265r1 November 2015 Slide 1 RTS*/CTS* for UL/DL OFDMA Control Date: Authors: NameAffiliationAddressPhone .
Doc.: IEEE /0877r0 Submission July 2013 James Wang (MediaTek)Slide 1 HEW Beamforming Enhancements Date: Authors:
Doc.: IEEE /0079r0 Submission Interference Signalling Enhancements Date: xx Mar 2010 Allan Thomson, Cisco SystemsSlide 1 Authors:
Doc.: IEEE /1149r0 Submission September 2010 Jarkko Kneckt, Nokia CorporationSlide 1 Operation rules for > 40MHz Bandwidth Date: Authors:
Doc.: IEEE /0097r0 SubmissionJarkko Kneckt (Nokia)Slide 1 Bandwidth Specific TXOP Limits Date: Authors: January 2011.
Doc.: IEEE /0066r0 Submission January 2015 Yongho Seok, NEWRACOM Downlink OFDMA Protocol Design Date: Authors: Slide 1.
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 /0384r0 Submission Discussion on DL-OFDMA Sub-channel Indication Method Mar 2015 Yu Cai (Lenovo)Slide 1 Date: Authors:
Doc.: IEEE /0624r2 SubmissionLiwen Chu Etc.Slide 1 Scheduled Medium Access For Large Low Power BSS Date: Authors: Date: May, 2012.
Submission doc.: IEEE /0407r1 March 2012 Sudheer Grandhi, InterDigital CommunicationsSlide 1 Considerations for PSMP Enhancements Date:
Doc.:IEEE /1385r0 Submission Sep Brian Hart, Cisco SystemsSlide 1 Making the Quiet Channel Element Work for 11a/11n Clients Date:
Doc.: IEEE /0787r1 Submission MU with Frequency Domain Multiplexing July 2010 ChaoChun Wang et al, MediaTekSlide 1 Authors:
Submission doc.: IEEE /1116r1 September 2015 Jinsoo Ahn, Yonsei UniversitySlide 1 Trigger Frame Channel Access Date: Authors:
Submission doc.: IEEE 11-15/1060r0 September 2015 Eric Wong (Apple)Slide 1 Receive Operating Mode Indication for Power Save Date: Authors:
Doc.: IEEE /0107r2 SubmissionLiwen Chu Etc.Slide 1 Channel Bandwidth Indication and Negotiation Date: Authors: Date: Jan, 2012.
Virtual CS during UL MU Date: Authors: March 2017
Regulatory Classes for 80 MHz Channel
BSS Load Information Element for 11ax
Month Year doc.: IEEE yy/xxxxr0 May 2010
GAPA - Efficient, More Reliable Multicast
January 2012 Discussions on the better resource utilization for the next generation WLANs Date: January 17th, 2012 Authors: Name Affiliations Address Phone.
Channel Selection and Management for 11ac
120MHz channelization solution
Channel Selection and Management for 11ac
Fair Quiet for DFS Date: Authors: February 2008
Overlapping BSS Co-Existence
Overlapping BSS Co-Existence
GAPA - Efficient, More Reliable Multicast
Month Year doc.: IEEE yy/xxxxr0 May 2010
Month Year doc.: IEEE yy/xxxxr0 May 2010
MU-MIMO support for Heterogeneous Devices
HT Features in Mesh Network
Overlapping BSS Co-Existence
MU with Frequency Domain Multiplexing
RTS&CTS Exchange in wideband transmission
LB97 Coex: Duplicate DSSS
120 MHz PHY Transmission Date: Authors: January 2010
Interference Signalling Enhancements
Channelization for China’s Spectrum
Reserving STA Date: Authors: January 2011 January 2011
Month Year doc.: IEEE yy/xxxxr0 May 2010
BSS Load Information Element for 11ax
LC MAC submission – follow up
Presentation transcript:

doc.: IEEE / Submission September 2010 James Wang, MediatekSlide 1 Wide Band OBSS Friendly PSMP Date: 2010, September 13 Authors:

doc.: IEEE / Submission September 2010 James Wang, MediatekSlide 2 Abstract PSMP is an optional low power scheduling mechanism for 11n The proposal extends the PSMP in 11n to the wide band 11ac channel The proposal introduces several OBSS friendly and capacity enhancement features.

doc.: IEEE / Submission PSMP Background Power Save Multi-Poll (PSMP) was introduced in n –Provide a low power scheduling mechanism –Use a duplicate non-HT (OFDM) waveform for 40MHz channel to set up protection period against legacy devices –Provide (downlink and uplink) scheduling information in the PSMP frame James Wang, MediaTek3 PSMP PSMP-DTT STA1 PSMP-DTT STA2 PSMP-DTT STA3 PSMP-UTT STA1 PSMP-DownlinkPSMP-Uplink AP STA1 STA2 STA3 PSMP-UTT STA2 PSMP-UTT STA3

doc.: IEEE / Submission PSMP Pros and Cons Pros –Allows maximum power saving of clients, especially in enterprise and hotspot environments –Hotspot is growing more and more important as a use case, as operators seek to offload mobile phone data traffic to WiFi –A good differentiator for AP vendors since the basic features have become commodities –Client complexity is low; a basic implementation can simply extend the fixed SIFS response to programmable UTT Cons –AP complexity is significant, but not daunting, comparable to scheduling of TSpec and also can be considered as an extension of QoS capabilities This proposal can takes advantage of PSMP support in 11n devices when available, but does not depend on it James Wang, MediaTek4

doc.: IEEE / Submission Motivation and Potential Issues for Wide Band PSMP Wide band extension of PSMP in 11ac is desirable –Allow high bandwidth and low power PSMP operation –Natural transition for 11n PSMP implementation –Support of low power operation becomes more important as more the mobile devices, such as smart phones, incorporate WiFi Issues associated with wide band PSMP –OBSS issues become more severe with wide band channel –Not full BSS bandwidth will be used since 11ac BSS most likely will comprise n and 11ac STAs It is desirable to use bandwidth more prudently in wide band PSMP, i.e., to make it more OBSS friendly James Wang, MediaTek5

doc.: IEEE / Submission Wide band PSMP Waveforms Proposed wide band TGac extension of PSMP waveform is to replicate the “40MHz 11n PSMP waveform” in each 40MHz subchannel James Wang, MediaTek6 Frequency 40MHz duplicate non-HT (OFDM) Waveform 80MHz PSMP Waveform Frequency 160MHz PSMP Waveform 40MHz duplicate non-HT (OFDM) Waveform

doc.: IEEE / Submission Proposed 11ac OBSS PSMP Features Feature 1: Allow different sub-channels to have different (protection) lengths –Release the unused duration to OBSS Feature 2: Allow selected (instead of all) subchannel(s) to be used –AP and STA transmit only using selected subchannel(s) based on traffic requirements and STA capability, not occupy the entire BSS bandwidth James Wang, MediaTek7

doc.: IEEE / Submission Higher OBSS Usage James Wang, MediaTek8 8 Secondary Subchannel Primary Subchannel PSMP Frame 80 MHz Bursts 40 MHz Bursts Duration for the Primary Subchannel Duration for the Secondary Subchannel Release Unused Duration Tertiary Subchannel Quantenary Subchannel Release Unused Subchannels BSS Channel Width Feature 1 and 2 allow release of unused subchannels and unused duration for OBSS use

doc.: IEEE / Submission Capacity Enhancement PSMP Feature Feature 3: During PSMP, allows FDM ref1 (Frequency Division Multiplexing) use of sub-channels –While transmission to 11n device in the primary subchannel, also allows simultaneous transmission to 11ac STAs in the non-primary channels –Allows simultaneous transmisson of multiple 11ac STAs signals in different subchannels James Wang, MediaTek9 9 Secondary Subchannel Primary Subchannel PSMP Frame 40/80/120 MHz Bursts to 11ac 40 MHz Bursts to 11n and 11ac Quarternary Subchannel Tertiary Subchannel

doc.: IEEE / Submission What Available for Signaling NAV setting: Duration ID -> set up protection against legacy STAs “PSMP Sequence Duration” subfield (10 bits) in the PSMP Parameter Set field -> allows indication of different durations for different subchannels “Reserved” subfield (6 bits) in PSMP STA Info field -> allow subchannel selection on a per STA basis Replicate the waveform only in selected subchannel(s) James Wang, MediaTek10

doc.: IEEE / Submission September 2010 James Wang, MediatekSlide 11 Summary A wide band PSMP scheme which extends the 11n PSMP to 11ac is presented A wide band PSMP waveform constructed from replicating the 40MHz PSMP waveform in each of the subchannel is introduced Two OBSS friendly features promoting higher OBSS usage in the unused PSMP subchannel(s) and unused PSMP subchannel duration(s) are discussed One capacity enhancing feature using FDM or OFDMA is discussed Possible signaling methods are presented

doc.: IEEE / Submission September 2010 James Wang., MediatekSlide 12 References [1] ac, Brian Hart, Cisco “DL-OFDMA for Mixed Clients”

doc.: IEEE / Submission Strawpoll #1 Are you interested in extending 11n PSMP to wide band (>40MHz) 11ac channel as an optional feature in 11ac ? –Yes: –No: –Abstain: James Wang, MediaTek13

doc.: IEEE / Submission Strawpoll #2 Are you interested in enhancing higher OBSS usage during PSMP using the proposed features (1 and 2) ? –Yes: –No: –Abstain: James Wang, MediaTek14