Enabling STA-to-STA Communication in IEEE 802.11
Explore the potential of multi-hop relay and neighbor STA discovery for enhancing robustness and reducing latency in consumer devices within the IEEE 802.11 framework. Learn about proactive STA-to-STA link setup and neighbor STA discovery methods to improve network efficiency.
Download Presentation
Please find below an Image/Link to download the presentation.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author. If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.
You are allowed to download the files provided on this website for personal or commercial use, subject to the condition that they are used lawfully. All files are the property of their respective owners.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.
E N D
Presentation Transcript
September 2018 doc.: IEEE 802.11-18/1572r0 Enabling STA to STA communication Date: 2018-09-11 Name Affiliation Address Phone Email Kazuyuki Sakoda Sony 1730 N. First Street, San Jose CA 95112 kazuyuki.sakoda(at)sony.com Mohamed Abouelseoud Mohamed.Abouelseoud(at)so ny.com Morteza Hashemi Morteza.Hashemi(at)sony.co m Kazuyuki Sakoda (Sony) Submission Slide 1
September 2018 doc.: IEEE 802.11-18/1572r0 Overview Robustness and latency are critical for consumer devices use cases As discussed in 11-18/1571, we think multi-hop relay can help mitigating blockage issue of 60GHz communication To allow such network operation, 802.11ay STA should be able to communicate with STA in its neighborhood in addition to AP/PCP that it associates to We further think that distribution network concept introduced in 11- 17/1321 is beneficial to form such a network. In distribution network, it is desirable that STA can find its neighbor STAs This contribution presents a suggested method to enable neighbor STA discovery efficiently Kazuyuki Sakoda (Sony) Submission Slide 2
September 2018 doc.: IEEE 802.11-18/1572r0 STA to STA use case example STA1 STA1 Case A: Case B: AP STA2 Blocker Blocker STA2 AP STA1 STA1 Blocker Blocker AP STA2 STA2 AP Here, we assume 1 BSS operation for simplicity. If we try to leverage path diversity effect, the link between STA1 and STA2 needs to be available even when the traffic is not ongoing Kazuyuki Sakoda (Sony) Submission Slide 3
September 2018 doc.: IEEE 802.11-18/1572r0 STA to STA communication in DMG BSS There are sufficient tools to enable STA to STA link set up already The Information Request/Response frames and Relay Search Request/Response frames are usable to collect other STA s information AP can allocate SP with IsInitiatorTXSS subfield equal to 1, so that a STA triggers TX SSW to another STA, which helps initial BF and STA discovery Kazuyuki Sakoda (Sony) Submission Slide 4
September 2018 doc.: IEEE 802.11-18/1572r0 Enabling STA to STA communication STA to STA link set up needs to be done in proactive fashion Ideally, a STA should perform neighbor STA discovery at the time of joining BSS It should be beneficial if AP/PCP can kick STA to STA TX SSW when a new STA joins a BSS, i.e., AP asks STA1 to perform SSW toward STA2 STA2: newly joining BSS STA2: newly joining BSS Discover each other Joining BSS STA1: existing STA in the BSS TXSS Ask to perform TXSS STA1: existing STA in the BSS AP AP Kazuyuki Sakoda (Sony) Submission Slide 5
September 2018 doc.: IEEE 802.11-18/1572r0 Neighbor STA discovery The following sequence enables STA discovery at the time of joining BSS STA2 (New STA) AP STA1 (Existing STA) Ask to perform TXSS STA 1 Joining BSS (Existing STA) Asking to perform TXSS TXSS AP DMG discovery signal to STA2 (TXSS) Joining BSS STA 2 (New STA) Kazuyuki Sakoda (Sony) Submission Slide 6
September 2018 doc.: IEEE 802.11-18/1572r0 Recap: multi-band discovery assistance This STA discovery is similar to multi-band discovery assistance Multi-band discovery assistance enables on-demand SSW at the time of joining BSS STA2 (New STA) AP DMG Discovery Asst. Request AP Lower band signal mmW band signal DMG Discovery Asst. Response STA 2 (New STA) DMG discovery signal to STA2 (TXSS) Kazuyuki Sakoda (Sony) Submission Slide 7
September 2018 doc.: IEEE 802.11-18/1572r0 Combined use of discovery assistance STA2 (New STA) AP STA1 It would be beneficial if we can perform both discovery process altogether (Existing STA) DMG Discovery Asst. Request DMG Discovery Asst. Request STA 1 (Existing STA) DMG Discovery Asst. Response AP DMG discovery signal to STA2 (TXSS) STA 2 (New STA) DMG discovery signal to STA2 (TXSS) Kazuyuki Sakoda (Sony) Submission Slide 8
September 2018 doc.: IEEE 802.11-18/1572r0 Summary It is beneficial that 802.11ay STA can kick neighbor STA discovery and STA-STA link set up process efficiently There are many existing components to enable STA to STA communication We should be able to enable STA discovery with minimal changes to the specification Define a container of the signal asking TXSS (Announce frame or Information Request/Response frame) AP and STA behavior relating to discovery TXSS allocation Kazuyuki Sakoda (Sony) Submission Slide 9
September 2018 doc.: IEEE 802.11-18/1572r0 References [1] Draft P802.11ay D2.0 [2] IEEE 802.11-18/1571, Benefits of multi-hop communications in 802.11ay , Morteza Hashemi, et.al. [3] IEEE 802.11-17/1321r0 Features for mmW Distribution Network Use Case , Djordje Tujkovic, et.al. Kazuyuki Sakoda (Sony) Submission Slide 10
