Wi-Fi 6的多用户技术

doi:10.11959/j.issn.1000-0801.2021065

Abstract

Abstract:

Wi-Fi 6 was the new name of IEEE 802.11ax by the Wi-Fi Alliance to facilitate the promotion of new Wi-Fi technology.Wi-Fi 6 technology focused on improving multi-user performance and efficiency in dense deployment scenario.Introducing OFDMA, UL MU-MIMO and other multi-user collaboration technologies, greatly increases system capacity and reduces transmission delay.The principles of OFDMA, MU-MIMO, MU-RTS/CTS technologies were described, the communication process in multi-user scenario was introduced in detail, and the UL and DL simultaneous user numbers of Wi-Fi 6 were analyzed in theory.Finally, the application potential of Wi-Fi 6 were discussed.

Key words: Wi-Fi 6, OFDMA, MU-MIMO, multi-user

CLC Number:

TN925

Jiaojiao WANG, Zhen SHAO, Guojin HUANG. Multi-user coordination technology[J]. Telecommunications Science, 2021, 37(4): 132-139.

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[1]	凌毓 . Wi-Fi 6技术解读及其对5G发展的影响分析[J]. 信息通信, 2020,33(2): 268-269.
	LING Y . Interpretation of Wi-Fi 6 technology and analysis of its impact on the development of 5G[J]. Information ＆Communications, 2020,33(2): 268-269.
[2]	IEEE P802. 11.Proposed 802.11ax Functional Requirements:IEEE 802.11-14/1009r2[Z]. 2014.
[3]	郑磊 . Wi-Fi 6与5G技术的性能对比与应用分析[J]. 科技创新导报, 2019,16(16): 144-151.
	ZHENG L . Performance comparison and application analysis of WiFi6 and 5G technologies[J]. Science and Technology Innovation Herald, 2019,16(16): 144-151.
[4]	高波, 潘毅明, 黄国瑾 . 基于城域组网的运营级WLAN组网技术[J]. 电信科学, 2015,31(10): 199-203.
	GAO B , PAN Y M , HUANG G J . Technology of WLAN in operation level based on metropolitan area network[J]. Telecommunications Science, 2015,31(10): 199-203.
[5]	一文带你彻底了解什么是Wi-Fi 6[Z]. 2020.
	An article will give you a thorough understanding of Wi-Fi 6[Z]. 2020.
[6]	赵辰, 李云洲, 许希斌 ,等. 全双工 WLAN 的吞吐量性能分析[J]. 电信科学, 2016,32(6): 83-92.
	ZHAO C , LI Y Z , XU X B ,et al. Analysis of the throughput in full-duplex WLAN[J]. Telecommunications Science, 2016,32(6): 83-92.
[7]	Draft Standard for information technology-telecommunications and information exchange between systems local and metropolitan area networks—specific requirements,part 11:wireless LAN medium access control (MAC) and physical layer (PHY) specifications,amendment 1:enhancements for high efficiency WLAN[Z]. 2019.
[8]	Wi-Fi ALLIANCE. Wi-Fi certified 6th test plan version 1.0.Wi-Fi alliance[Z]. 2019.

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RU 类型	20 MHz	40 MHz	80 MHz	80+80 MHz和160 MHz
26子载波 RU	9	18	37	74
52子载波RU	4	8	16	32
106子载波RU	2	4	8	16
242子载波RU	1	2	4	8
484子载波RU	N/A	1	2	4
996子载波RU	N/A	N/A	1	2
2×996子载波RU	N/A	N/A	N/A	1

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