Microsoft Technology Licensing, LLC

Crsc Research & Design Institute Group Co., Ltd.

Huan Ding

Guoying Wang

Fan Li

Jun Hong Zhao

Chunshui Zhao

Zhen Liu

Bing Yan

Zhiyu Li

Xuejian Li

Zhenyu Sun

Yanwen Xu

Xianliang Lv

Guiyan Zheng

Shengwen Zhang

Feng Ye

Zhenghui Mu

Guoying Sun

Fusong Zhang

Guang Chen

Bangfeng Cheng

Guanglun Yang

A user device is equipped with one or more sensors that collect data relating to a movement of a user having the user device. An estimated area within which a starting location of the user device is located is determined based on one or more signals received from adjacent signal sources. A plurality of candidate locations is identified within the estimated area as the potential starting location of the user device. Map information of surrounding area that covers the estimated area is also obtained. One or more candidate locations are filtered out depending on whether they could have experienced the movement based on the map information. When one or more re-starting conditions have met during the movement, a then starting location of the user device needs to be determined.

Determining user device's starting location

Growing community of inventors

Beijing, China

Huan Ding