SFN 기반 고속철 이동무선백홀 네트워크를 위한 다중 CP 기반 프레임 구조 및 이를 활용한 RU 선택 및 핸드오버 방법
김준형, 회빙, 노고산, 정희상, 김영진, 김일규
- ZL201711043113.X (2020.11.03)
16MF1200, (통합)초연결 스마트 서비스를 위한 5G 이동통신 핵심기술개발,
- The invention relates to a radio unit selecting method and a frame setting method, and provides a radio unit selecting method used for a base station including a digital unit in a mobile radio backhaul network for a highly moving object carrying a vehicle terminal. When the first radio unit communicates with the vehicle terminal by utilizing CP of the first length among multiple radio units, the base station measures the distance between the vehicle terminal and the first radio unit. If the distance is smaller than a first threshold, the base station selects a second radio unit to be moved among the rest radio units in the multiple radio units. Moreover, the length of CP used by the first radio unit and the second radio unit is set by the base station to the third length between the secondlength and the first length. If the signal intensity of the first radio unit is smaller than a second threshold, the CP used by the second radio unit is set as the first length by the base station.