A train position based beam switching mechanism in high speed railway scenario

According to the medium and long term development planning of railway networks, China will built “eight vertical and horizontal” high speed railway network during 13th five-year. With the rapid development of mobile smart terminals, the rail dedicated communication system using GSM-R system cannot satisfy the passengers' communication requirement. As high frequency communication has been considered in 3GPP new radio to achieve higher capacity, this paper studies the high-speed communication using 60GHz millimeter wave. In this paper, we propose a beam switching mechanism based on train position information in high speed railway scenario. The proposed mechanism can realize fast intra-TRP/inter-TRP beam switching and the simulation result demonstrates Gigabit data rate can be provided for passengers.