Power ramping methods for message (Msg.) 1 transmission/retransmission of a random access (RA) procedure in multi-beam systems
회빙, 정희상, 김일규, 김준형, 노고산, 김영진, 최성우
- 10499349 (2019.12.03)
17HF1600, (통합)초연결 스마트 서비스를 위한 5G 이동통신 핵심기술개발,
- A method and user equipment for transmitting a message of a random access procedure in a multi-beam system includes: transmitting and retransmitting a message 1 of the RA procedure through a first beam of a plurality of transmission beams of the UE based on power ramping; and retransmitting, if one or more Msg. 2 (RAR) is not successfully received corresponding to the message 1 transmission/retransmission, the message 1 through a second beam of the plurality of transmission beams after switching the first beam to the second beam at a second power level which is the same as or higher than a first power level of the first beam.
- KSP 제안 키워드
- Multi-beam, Power Levels, Random Access, Random Access Procedure, User equipment(UE), access procedure