Synchronized Dynamic Channel Sounder and Posture Capture for Millimeter Wave Radio Channel Suffered from Human Body Shadowing

Millimeter wave (mmW) band has been deployed in the fifth generation (5G) mobile communication system to realize the enhanced mobile broadband (eMBB) service. Systems at mmW points the main beam of the base station to the line-of-sight (LoS) toward the mobile stations but suffer from a deep fading due to human blockage. To predict the impact due to human blockage, a synchronized measurement system including dynamic channel sounding and motion capture is needed. This paper proposes the synchronization method between 2 different types of instruments by using a bottom trigger as the reference of time. For validation, the measurement of dynamic channel and motion capture, and the prediction of the channel gain based on uniform theory of diffraction (UTD) were done. The results show that the proposal matching the time stamps well. The proposal provides a reliable synchronization of channel sounder and motion capture for developing dynamic channel model.

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