IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
13–16 September 2021 // Virtual Conference // By 6G Flagship

3GPP NR Positioning: standard and key techniques


Dr. Yi Wang,
Huawei Technologies Co., Ltd., Shanghai

Dr. Yi Wang [SM’11] is currently a research expert at Huawei Technologies Co., Ltd. in Shanghai, and is leading 5G positioning and sensing research including standard and algorithms. He received the M.S.E.E and Ph.D degrees in information engineering department from Beijing University of Posts & Telecommunications, China, in 1997 and 2000 respectively. He has worked at Tsinghua University and the University of Kiel in Germany as post-doctor. Since 2005 he joined Huawei Technologies Co., Ltd. he led a series of research projects including beyond 3G, superposition coding for LTE-advanced system, distributed antenna system, cloud RAN, massive MIMO, 5G mmWave communications, and 5G positioning and sensing. Dr. Yi Wang owns 200+ patents and 90+ publications. Many patents have been realized in LTE product or used in 3GPP and IEEE802.11 standards. He has been involved in a series of research organizations including Moible VCE, WWRF, 3GPP, IEEE802, and IEEE conferences

Dr. Su Huang,
Huawei Technologies Co., Ltd., Shanghai

Dr. Su Huang received bachelor degree and Ph.D from the department of Electronic Engineering at Tsinghua University, Beijing, China, in 2010 and 2015, respectively. He is currently working as the senior engineer in Huawei Technologies Co. Ltd. His major researching area is 5G physical layer including radio access scheme, MIMO, positioning based on LTE/NR radio access network, UE power saving, and 5G V2X. He is also the 3GPP RAN1 standard delegate from Huawei on NR positioning. Prior to Huawei, Dr. Huang had been in UNISOC/Spreadtrum Communications for three years, when he was the leading delegate of 3GPP RAN1 on waveform and MIMO.


User positioning in wireless network is of increasing importance for public security, commercial services, and the applications in vertical industry. 5G started its industrial standard in 3GPP in Release 16 which was studied during 2018 –2020. 5G positioning has an aggressive positioning targets including wide range of accuracy from meter-level to cm-level accuracy, latency from seconds to milliseconds level, and IOT device with very low power consumption. The considered scenarios cover general indoor and outdoor, industrial factory, and V2X etc. So it is of interests to audiences to take attention to the new emerging 5G positioning standard and the key techniques before 5G positioning iswidely applied in commercial markets.

Structure and content

  1. 3GPP standards on positioningoverview
    1. 3GPP NR positioning time line
    2. Use case, requirements, and KPI
    3. Network architecture for positioning
  2. Rel-16 RAN standards
    1. RAN1 perspective
    2. RAN2perspective
    3. RAN3 perspective
    4. RAN4 perspectivee)RAN5 perspective (just started)
  3. Positioning Techniques
    1. TDOA and angle based positioning
    2. Particle-swarm optimization based positioning
    3. AI-based positioning
    4. Multipath-assisted positioning
    5. Sidelink positioning
    6. Cooperative positioningg)RRC-IDLE/INACTIVE positioning
  4. Summary