FDMA Channel signaling

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Presentation transcript:

FDMA Channel signaling May 2018 FDMA Channel signaling Date: 2018-05-07 Authors: Name Affiliation Address Phone Email Suhwook Kim LG Electronics 19, Yangjae-daero 11gil, Seocho-gu, Seoul 137-130, Korea   suhwook.kim@lge.com Taewon Song taewon.song@lge.com Jeongki Kim jeongki.kim@lge.com Kiseon Ryu kiseon.ryu@lge.com Jinsoo Choi js.choi@lge.com Suhwook Kim, LG Electronics

May 2018 Introduction We have discussed and passed a motion about FDMA transmission So we will address channel signaling for FDMA transmission Suhwook Kim, LG Electronics

FDMA We had a passed motion for FDMA transmission [1] May 2018 FDMA We had a passed motion for FDMA transmission [1] WUR PPDU can be transmitted in multiple channels WUR STAs are distributed in multiple channels Each WUR STA may only receive WUR PPDU through the allocated WUR channel Suhwook Kim, LG Electronics

Channel signaling for FDMA May 2018 Channel signaling for FDMA We should define following signaling for FDMA transmission WUR operating channel indication WUR beacon channel indication WUR channel switch indication Suhwook Kim, LG Electronics

WUR operating channel indication May 2018 WUR operating channel indication A WUR STA has to be allocated in one of WUR channel before it begins WUR operation We already define WUR channel field in WUR Operation element [2] So we can use this field to support FDMA transmission AP allocates different channels to each STA Suhwook Kim, LG Electronics

WUR beacon channel indication May 2018 WUR beacon channel indication WUR beacon channel indication is highly relevant to how WUR beacon frame is transmitted Issue on WUR beacon transmission is addressed in another submission [3] If WUR beacon is transmitted in one WUR channel only, WUR beacon channel should be indicated to WUR STA If WUR channel is same as PCR channel, WUR beacon will be transmitted on primary channel of PCR If WUR channel is different with PCR channel, WUR beacon channel shall be indicated Suhwook Kim, LG Electronics

WUR channel switch indication May 2018 WUR channel switch indication There are several reasons why an AP may change WUR channel PCR channel has been changed Poor performance on a current FDMA channel Regrouping for WUR STA We already have signaling for channel switch CSA (Channel Switch Announcement) element Suhwook Kim, LG Electronics

Channel Switch Announcement May 2018 Channel Switch Announcement Channel Switch Mode 0: No restriction on transmission until a channel switch 1: No transmission until a channel switch New Channel Number: the number of the channel after the channel switch Channel Switch Count: the number of TBTTs until the channel switch Suhwook Kim, LG Electronics

Proposed CSA modification May 2018 Proposed CSA modification Add new value in Channel Switch Mode field for WUR Value 2: WUR channel switch New Channel Number: the number of the WUR channel after the channel switch (when CSM value is 2) Channel Switch Count: the number of TWBTTs until the channel switch (when CSM value is 2) Suhwook Kim, LG Electronics

May 2018 Summary In this submission, we address channel signaling issue in FDMA transmission WUR operating channel can be easily indicated through WUR mode signaling If WUR channel is different with PCR channel, WUR beacon channel shall be indicated WUR channel switch indication can be indicated through modified CSA element Suhwook Kim, LG Electronics

May 2018 References [1] 11-17-1625-06-00ba-efficient-fdma-transmission-schemes-for-wur-wlan.pptx [2] IEEE P802.11ba™/D0.2 [3] 11-18-0716-00-00ba-WUR-Beacon-transmission.pptx Suhwook Kim, LG Electronics

Straw poll 1 Do you support following sentence? May 2018 Straw poll 1 Do you support following sentence? If WUR channel is different with PCR channel, the channel to which WUR beacon frame is transmitted shall be indicated to WUR STAs Suhwook Kim, LG Electronics

Straw poll 2 Do you support following sentences? May 2018 Straw poll 2 Do you support following sentences? 11ba spec shall define a mechanism to indicate channel switch information for WUR STA Suhwook Kim, LG Electronics

Straw poll 3 Do you support WUR channel switch signaling in slide 9? May 2018 Straw poll 3 Do you support WUR channel switch signaling in slide 9? Suhwook Kim, LG Electronics