OFDM 시스템에서 동기채널의 코드 호핑을 이용하는 셀 탐색 방법
김일규, 김남일, 장갑석, 김영훈, 방승찬, 박형근
- 8542571 (2013.09.24)
- Provided are a cell search method, a forward link frame transmission method, an apparatus using the methods, and a forward link frame structure. The cell search apparatus includes a sync acquirer acquiring synchronization of sync channel symbols using a sync channel of a forward link, and a group detector detecting at least one hopping codeword element belonging to a hopping codeword of a target cell from a forward link signal containing sync channel symbols sequence-hopped using a hopping codeword corresponding to a code group to which a scrambling code of each cell belongs based on the acquired synchronization, and detecting a code group of the target cell based on the detected hopping codeword element, wherein the hopping codewords are orthogonal to a cyclic shift operation. Accordingly, a cell search time and the complexity of the cell search can be reduced.
- KSP 제안 키워드
- Cell search, Cyclic shift, Forward link, Frame structure, Search time, Shift Operation, search method, transmission method