Uplink data indication in ndp ps poll
This presentation is the property of its rightful owner.
Sponsored Links
1 / 8

Uplink Data Indication in NDP PS-Poll PowerPoint PPT Presentation


  • 118 Views
  • Uploaded on
  • Presentation posted in: General

Uplink Data Indication in NDP PS-Poll. Authors:. Date: 2012-11-08. Authors:. Authors:. November 2012. Overview. 11ah focuses on power saving and frame overhead reduction NDP type control frames have been proposed in 11ah [1]

Download Presentation

Uplink Data Indication in NDP PS-Poll

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Uplink data indication in ndp ps poll

Uplink Data Indication in NDP PS-Poll

Authors:

Date: 2012-11-08

Sayantan Choudhury, Nokia


Uplink data indication in ndp ps poll

Authors:

Sayantan Choudhury, Nokia


Uplink data indication in ndp ps poll

Authors:

Sayantan Choudhury, Nokia


Overview

November 2012

Overview

  • 11ah focuses on power saving and frame overhead reduction

  • NDP type control frames have been proposed in 11ah [1]

    • NDP PS-Poll, NDP Probe Request, Short ACK, Short Block ACK and Short CTS

  • A new Restricted Access Window (RAW) based channel access procedure has been proposed [1]

    • STAs covered by the AID segment in the TIM are allowed to access channel within RAW

    • RAWs are aimed at facilitating channel access for a group of STAs

      • E.g., RAW1: polling period, RAW2, 3: data delivery period

    • NDP type control frames are suitable in RAWs

  • In this contribution, we propose to introduce an uplink data indication (UDI) signaling field in NDP PS-Poll frames to assist the APs in scheduling uplink channel access

Sayantan Choudhury, Nokia


Ndp udi signaling options

November 2012

NDP UDI Signaling Options

  • NDP PS-Poll proposed by Huawei [2]

    • Modify NDP PS-Poll by adding uplink data indication (UDI) field in SIG

      • For bandwidth =1MHz, use 1 bit uplink data indication

      • For bandwidth >= 2MHz , can use larger number of reserved bits (<= 8 bits out of 12 bits) in SIG to indicate quantity of UL data

  • NDP Trigger frame

    • Define NDP Trigger frame with UDI

      • Quantity of uplink data (<= 8 bits)

  • Using NDP PS-Poll is a better option since we can re-use existing frames

Sayantan Choudhury, Nokia


Conclusion

November 2012

Conclusion

  • Propose to introduce a signaling mechanism for stations with buffered uplink data to indicate the amount of buffered uplink data to the AP

    • Propose to add uplink data indication (UDI) field in NDP PS-Poll SIG

Sayantan Choudhury, Nokia


Straw poll

November 2012

Straw Poll

  • Do you support adding an uplink data indication (UDI) field to NDP PS-Poll frame ?

Sayantan Choudhury, Nokia


References

November 2012

References

  • “Proposed Specification Framework for TGah”, IEEE 802.11-11/1137r11

  • NDP Type PS-Poll frame, IEEE 802.11-12/848r0

Sayantan Choudhury, Nokia


  • Login