SC-FDMA 시스템에서 ACK/NAK 채널의 다중접속 구조
고영조, 박형근, 장갑석, 이효석, 김일규, 김영훈, 방승찬
- 10225824 (2019.03.05)
- When a plurality of terminals share the same resources in a wireless communication system, and when control information such as acknowledgement/negative acknowledgement (ACK/NAK) information or scheduling information is transmitted, a method of efficiently performing code division multiplexing (CDM) is required to distinguish the plurality of terminals. In particular, it is necessary to develop a method by which a code sequence of CDM can be selected and used according to each cell condition. Provided is a method of forming a signal in a wireless communication system in which a plurality of terminals commonly share frequency and time resources. The method includes the operations of receiving condition information in a cell; selecting one of a plurality of time domain orthogonal sequences having different lengths, according to the condition information; and allocating the selected time domain orthogonal sequence to a control signal symbol block.
- KSP 제안 키워드
- Communication system, Condition information, Control Signal, Negative acknowledgement, Orthogonal sequence, Scheduling information, Single carrier Frequency Division Multiple Access(SCFDMA), Wireless communication system, code division multiplexing, division multiplexing, time-domain, wireless communication