Association mappings between synchronization signal (SS) blocks and physical random access channel (PRACH) resources and designs of 4-step random access (RA) procedure in multi-beam systems
회빙, 정희상, 김일규, 김준형, 노고산, 김영진, 최성우
- 10827530 (2020.11.03)
17HF1600, (통합)초연결 스마트 서비스를 위한 5G 이동통신 핵심기술개발,
- A method for transmitting and receiving a message for a random access (RA) between user equipment (UE) and a base station in a multi beam system includes: transmitting a synchronization signal (SS) block including a synchronization signal by performing beam sweeping for a multi beam; receiving a message 1 of an RA procedure from the UE; determining an optimal transmission beam to be used to transmit a message 2 of the RA procedure based on information about an association mapping between the SS block and a physical random access channel (PRACH) which is used to transmit the message 1; and transmitting the message 2 by using the optimal transmission beam.
- KSP 제안 키워드
- Beam sweeping, Multi-beam, Physical random access channel(PRACH), Random Access, Random access channel(RACH), User equipment(UE), base station(BS), optimal transmission, synchronization signal