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Response to Comments on Proposal for IEEE 802.11ax and EUHT Submission to ITU for IMT-2020

This document presents a response to the comments on the proposal for IEEE 802.11ax and EUHT submission to ITU for IMT-2020. It discusses the background, summary, and recommendations regarding the joint submission.

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Response to Comments on Proposal for IEEE 802.11ax and EUHT Submission to ITU for IMT-2020

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  1. Jun Lei, Nufront Response to the comments on Proposal to Submit IEEE 802.11ax and EUHT to ITU for IMT-2020 • Date: 2019-05-13 Authors:

  2. Jun Lei, Nufront Abstract The response to the comments on Proposal to Submit IEEE 802.11ax and EUHT to ITU for IMT-2020 is presented. r1: update of the document r2: correction of header information

  3. Jun Lei, Nufront Abbreviation • RIT ( Radio Interface Technology) • URLLC（Ultra-Reliable and Low Latency Communications） • eMBB（enhanced Mobile Broadband） • mMTC (massive Machine Type Communication) • LMLC (Low Mobility Large Cell ) • NSA（Non-Standalone ） • EUHT（Enhanced Ultra High Throughput）

  4. Jun Lei, Nufront Outline Background Response to the comments on EUHT and 802.11ax joint submission to IMT-2020 Summary and Recommendations

  5. Jun Lei, Nufront Background • IMT-2020 requires the proposed technologies support 5 test environments: Indoor/Dense Urban /Rural eMBB, URLLC and mMTC. • 802.11ax alone is not able to meet all the requirements • The proposal to 3GPP about 802.11ax integration with 3GPP is rejected. • It was proposed that 802.11ax and EUHT are submitted to ITU as set of RIT of IMT-2020. [1] • Comments on the joint submission are made in [2], where concerns raised about the following issues: • ITU designation was not and will not help 802.11 in the market. • Too short time to prepare the required document, especially self-evaluation • EUHT is un-familiar to 802.11 members

  6. Jun Lei, Nufront ITU designation is beneficial to IEEE • In the past, 3GPP technologies are deployed in licensed band, while 802.11 works at unlicensed band • 3GPP LTE-V vs 802.11p • LTE-V prevail in at least China, maybe Europe. 802.11p deployment is postponed in US. • 3GPP LTE-U vs 802.11n/ac • LTE-U is already deployed in subway, port, industrial park in China • 3GPP NR-U vs 802.11ax • ? • Argument: Will WiFi still exist in 5G era? • After the ITU designation, the 11ax and EUHT can work at IMT-2020 band. The customer, both in consumer market and industrial market, can choose the most suitable 5G solution for themselves.

  7. Jun Lei, Nufront EUHT is ready for submission • The configurations in ITU evaluation are optional • The requirements are met under either configuration • Self evaluation of EUHT is complete • Work with experienced 3rd party universities • The required documents are ready • Technical Description • Self evaluation report • Link budget report • Requirements compliance report • Patent policy compliance declaration

  8. Jun Lei, Nufront Concerns about EUHT • EUHT is not proprietary technology. It has been announced as four industrial and standards in China. The full text is open to download and English version standard was provided in the previous contribution 11-19-0672-00. • EUHT was presented to IEEE in 2011 with the full text. IEEE conducted detailed  analysis. A lot of 802.11 members are familiar with the whole process. • The concerns raised after analysis were mostly about co-existence and the market replacement, which do not exist now since 802.11ax and EUHT will be deployed for different use cases. • As the joint submission, 802.11ax and EUHT are independent technologies. IEEE does not need to endorse EUHT.

  9. Jun Lei, Nufront 802.11ax and EUHT Are Complementary • Complementary in technical performance • EUHT: mobility and reliability. • 802.11ax: high throughput and low cost. • Complementary in market • EUHT: high speed rail, subway, industrial URLLC, .. • 802.11ax: consumer electronics, fixed wireless access, … • EUHT deployment will expand the WiFi use • WiFi products don’t need to support EUHT • The EUHT network in high speed rail and subway only provide the train-to-ground wireless link. The EUHT-WiFi gateway is needed to support the user terminals inside train, like cell phone, pad, computers. • In the future, 802.11ax and EUHT may merge into 802.11 family to form the beyond 5G standard. • But before that, it is important for IEEE to occupy the position in 5G standard and market

  10. Jun Lei, Nufront Summary and Recommendations • The joint submission is crucial for IEEE to secure the future. • EUHT is ready for submission. • We are happy to cooperate with other IEEE 802.11 members to complete the self-evaluation and documents of 802.11ax. • We are happy to further cooperate with other IEEE 802.11 members on the development of next generation wireless communication systems.

  11. Jun Lei, Nufront Reference • [1] IEEE 802.11-19/0625r0, Proposal to Cooperate to Submit 5G Standards • [2] IEEE 802.11-19/0855r1, comments on proposal to submit ieee 802-11ax and euht to itu for imt-2020

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