wowslider.com

會議議程

業界專家演講
演 講 者：黃合淇 博士
聯發科技 通信系統設計事業部總經理

演講主題：5G NR and Wi-Fi 6: Opportunities, Challenges and Endgame?

演講時間：2020年1月15日 14:10~14:50（7F義大演講廳）


Abstract
5G NR (new radio) and Wi-Fi 6 (802.11ax) are the latest versions of the commonly used wireless communication standards to aim at the massive-scale commercialization in 2020. 5G NR is being designed to fulfil the needs of 3 major areas: eMBB (extended mobile broadband), URLLC (ultra reliable and low-latency communication) and mMTC (massive machine type communication). The vision of Wi-Fi 6 is to provide more robust co-existence of multiple devices in smart home, and enable the feasibility of managing Wi-Fi networks to have better user experiences in densely populated environments.

In this speech, their evolutionary paths will be introduced and the corresponding time line and key features will be highlighted. The comparison of these two communication standards will be illustrated from the aspects of technologies, and business opportunities and challenges. In the meanwhile, the present and future use scenarios will be examined to emulate the feasibility of adopting 5G NR and Wi-Fi 6 systems, respectively. The analysis indicates that either of 5G NR using licensed spectrum or Wi-Fi 6 operating on unlicensed spectrum performs its own functions to fulfill the corresponding applications well. Both 5G NR and Wi-Fi 6 are built from the similar foundation and will co-exist to support different use cases, like those past days.

Due to the rare licensed spectrum resource, 3GPP people have studied the possibility to explore the unlicensed spectrum. Wi-Fi technologies have utilized the ISM bands of 2.4 GHz and 5 GHz for years. Right now, the band at sub 7GHz, one candidate of the unlicensed spectrum, receives the attention from Wi-Fi 6 and 5G NR to explore the new business opportunities. 5G NR operating on unlicensed spectrum only intends to replace Wi-Fi technologies which have proved an ideal system for indoor wireless connectivity considering the reasonable cost to deploy, maintain and scale. Maybe someday once the equipment of 5G NR is not costly compared to Wi-Fi 6 solutions, 5G NR operating on the unlicensed spectrum might break the balance.


Biography
Ho-Chi Hwang received a Ph.D. degree in 1999 from Department of Electronics Engineering and Institute of Electronics, National Chiao-Tung University, Taiwan. From 1998 to 2000, he served as a researcher at Industrial Technology Research Institute (ITRI), Taiwan. He joined Mediatek after leaving ITRI, and he is now the General Manager of Communication System Design.

He leads research teams in contributing to IEEE and 3GPP standardization and product teams to develop the physical layer works for the cellular 2/3/4/5G and connectivity Wi-Fi products in MediaTek from design scratch to implementation. His research area consists of digital baseband design for transmitter and receiver, like channel estimation and equalization, and DSP architecture and firmware optimization methodology. He is also interested in digital signal processing for handling RF impairments and antenna issues at the hand-held communication devices.