Discussion on IEEE 802.11-23/1534r1 AMP IoT PAR
Explore the insights regarding the IEEE 802.11-23/1534r1 AMP IoT PAR discussions, including operational frequency bands, low power standards, and proposed modifications for ambient powered devices. Delve into the challenges and considerations for backward compatibility and coexistence with existing WLAN technologies.
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Sept. 2023 doc.: IEEE 802.11-23/1534r1 Discussion on AMP IoT PAR Date: 2023-09-08 Authors: Name Affiliations Address Phone Email You-Wei Chen You-Wei.Chen@mediatek.com Mediatek Inc. 2840 Junction Ave. San Jose, CA, 95134 Jianhan Liu Thomas Pare Rui Cao Dong Wei NXP Hongyuan Zhang Submission Slide 1 You-Wei Chen, Mediatek Inc.
Sept. 2023 doc.: IEEE 802.11-23/1534r1 Introduction Operation frequency bands and backward compatibility concern from WLAN were discussed in PAR. This document provides our view of AMP PAR. Submission Slide 2 You-Wei Chen, Mediatek Inc.
Sept. 2023 doc.: IEEE 802.11-23/1534r1 Current Low Power Standard in 2.4GHz In 2.4GHz, 11ba did not gain much market adoption. Another low power standard based on 11ba may face the same challenge. 11ba achieves an active receiver power consumption of less than one milliwatt. The reasons for 11ba not gaining market adoption can be complicated. We think it has little thing to do with 11ba designs. Therefore, a modified or enhanced version of 11ba may not overcome the market barrier. Submission Slide 3 You-Wei Chen, Mediatek Inc.
Sept. 2023 doc.: IEEE 802.11-23/1534r1 On Operational Frequency Bands For a new 802.11 amendment, we need to ensure the coexistence and backward compatibility with existing devices in 2.4GHz. New AMP energy harvesting waveform in 2.4GHz can cause coexistence issue. A low power AMP STA transmitting without 20MHz legacy preamble can cause backward compatibility issue. Existing 11be/11ax/11ac/11n/11b can be used by any AMP devices. New MAC protocols can be introduced to enable AMP IoT transmissions in 2.4GHz. In sub-1GHz, there is less coexistence concern and propagation loss in sub- 1GHz is smaller than in 2.4GHz, which benefits to AMP device. Submission Slide 4 You-Wei Chen, Mediatek Inc.
Sept. 2023 doc.: IEEE 802.11-23/1534r1 Straw Poll: Suggested PAR This amendment defines modifications to both the IEEE 802.11 Medium Access Control layer (MAC) and Physical Layers (PHY) to enable operation of ambient powered (AMP) devices by defining: - new mode of RF energy harvesting in sub-1GHz. - at least one mode of wake up and data communication link in sub-1GHz - at least one mode of wake up and data communication link in 2.4GHz with only MAC layer amendments. - at least one mode of positioning function. This amendment shall provide coexistence and backward compatibility with deployed devices compliant with IEEE Std 802.11 -2020 and operating in the same band. Submission Slide 5 You-Wei Chen, Mediatek Inc.
