Introduction to Enhanced Ultra High Throughput (EUHT) Standard
Explore the EUHT standard through this document providing insights into new features for Ultra-Reliable and Low Latency Communications (URLLC) and massive Machine Type Communication (mMTC) scenarios. The document covers the outline of the EUHT standard, features for URLLC and mMTC, background information, and an overview of the MAC layer. Discover how EUHT aims to enhance high-speed wireless communications with improved functionalities and performance.
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April 2019 doc.: IEEE 802.11-19/0672r0 EUHT standards introduction Date: 2019-04-20 Authors: Name Shenfa Liu Affiliations Address Nufront Phone 8610- 82150688 email Shenfa.liu@nufront.com Tsinghua Science Park, 100084, Beijing, China Tsinghua Science Park, 100084, Beijing, China Tsinghua Science Park, 100084, Beijing, China Tsinghua Science Park, 100084, Beijing, China li.yang@nufront.com Li Yang Nufront 8610- 82150688 Ted.lei@nufront.com Jun Lei Nufront 8610- 82150688 Fei.liu@nufront.com Fei Liu Nufront 8610- 82150688 Submission Slide 1 Shenfa Liu, Nufront
April 2019 doc.: IEEE 802.11-19/0672r0 Abstract This document is a brief introduction to the EUHT standard and includes new features for URLLC and mMTC scenarios. Submission Slide 2 Shenfa Liu, Nufront
April 2019 doc.: IEEE 802.11-19/0672r0 Abbreviation URLLC Ultra-Reliable and Low Latency Communications mMTC (massive Machine Type Communication) EUHT Enhanced Ultra High Throughput Submission Slide 3 Shenfa Liu, Nufront
April 2019 doc.: IEEE 802.11-19/0672r0 Topics Background Part I: EUHT standard outline EUHT MAC Layer Overview QoS Guaranteed fast and flexible scheduling EUHT PHY transmitter Part II: Features for URLLC Features for mMTC Submission Slide 4 Shenfa Liu, Nufront
April 2019 doc.: IEEE 802.11-19/0672r0 Background The attached reference document is the translated version of Chinese industry standard, which is announced in 2012. Complete EUHT technical description is provided in the document, which included features of MAC and PHY layers. It should be noted that there are many new features added in EUHT system since 2012. For example, More bandwidth/SC interval options, More LDPC code options, Higher and Lower MCS, Finer OFDMA, Seamless Handover, Multiple Connection etc. We are translating the new features and will update the document ASAP. Submission Slide 5 Shenfa Liu, Nufront
April 2019 doc.: IEEE 802.11-19/0672r0 EUHT standard outline Chapter 1~4 Scope, Normative Reference , Definitions and Abbreviations Chapter 5 System Reference Model Chapter 6 EUHT Standard Overview of MAC services Chapter 7 MAC frame format Chapter 8 MAC layer functions Chapter 9 PHY specifications Submission Slide 6 Slide 6 Shenfa Liu, Nufront
April 2019 doc.: IEEE 802.11-19/0672r0 EUHT MAC Layer Overview Data and Control Plane A centralized Scheduling MAC mechanism guaranteed the High MAC efficiency in multiple users scenarios Adaptation layer for QoS classification and the encryption and decryption of upper layer packets Extremely low overhead MAC layer (6bytes) in MAC MPDU G-MPDU aggregation for high throughput Instant-ACK /feedback for low latency Submission Slide 7 Shenfa Liu, Nufront
April 2019 doc.: IEEE 802.11-19/0672r0 QoS guaranteed fast and flexible scheduling DL packets queues QoS guaranteed for different service requirement.(priority QoS scheduling ) Scheduler UL CAP Base on QoS scheduling Channel Est Queue Info Low complexity and fast scheduling Scheduler Base on QoS scheduling STA Channel Est Fast channel state info feedback for fast link adaptation and scheduling UL packets queues The flexible resources allocation during the Frame. Support a minimum resource to ONE ofdm symbol. . Submission Slide 8 Shenfa Liu, Nufront
April 2019 doc.: IEEE 802.11-19/0672r0 EUHT PHY Transmitter Adaptive pilot mode for different STA channel conditions Pilot for phase tracking BCC LDPC Bit stream spatial mapping with high spatial diversity gain Get frequency diversity gain 1344bits 2688bits 5376bits DL/ UL MU MIMO (SDMA) Channel Coding Spatial stream ST stream Antenna port Const ellatio n mapp er Time &freq uency alloca tion Interl ever IF FT Wind owing Pilot CP Rate Matc hing Codin g Scra mbler Strea m Space -time codin g Preco ding Parser Rate Matc hing Codin g Scra mbler Const ellatio n mapp er Time &freq uency alloca tion Interl ever IF FT Wind owing Pilot CP Code rate of 5/8, 7/8 for optimized link adaptation in mid-high SNR region DL: S/L-Preamble, DL-SCH UL: UL-SCH, UL-SRCH, UL- RACH Frame Controller 256QAM->1024QAM UEQM for different stream TDMA and OFDMA resource allocation Submission Slide 9 Shenfa Liu, Nufront
April 2019 doc.: IEEE 802.11-19/0672r0 Features for URLLC More bandwidth/SC interval options 20/40/80MHz 10/20/40 MHz 8/16/32 MHz 78.125KHz 39.0625KHz 31.25KHz More CP options 1.6/3.2us More LDPC code options new LDPC code for 448 bits Higher and Lower MCS 1024QAM Seamless Handover Multiple Connection Frequency, Adaptation layer for multiple connections Submission Slide 10 Shenfa Liu, Nufront
April 2019 doc.: IEEE 802.11-19/0672r0 Features for mMTC More bandwidth/SC interval options Finer OFDMA minimum frequency resource allocation unit is 16 subcarriers High sleep ratio and long sleep duration Submission Slide 11 Shenfa Liu, Nufront
April 2019 doc.: IEEE 802.11-19/0672r0 Summary Gives a brief introduction to the existing EUHT standards . New features for URLLC and mMTC scenarios in EUHT system. Submission Slide 12 Shenfa Liu, Nufront
April 2019 doc.: IEEE 802.11-19/0672r0 Reference Submission Slide 13 Shenfa Liu, Nufront
