1차 동기채널과 2차 동기채널이 TDM으로 구성된 OFDM 셀 탐색 방법
김일규, 고영조, 박형근, 장갑석, 이효석, 이준환, 김영훈, 방승찬
- 8817770 (2014.08.26)
06MM1400, 3G Evolution 무선전송 기술 개발,
- Provided are a sync channel of a forward link, a common pilot channel structure, and an initial cell search method and an adjacent cell search method for handover in a cellular system using orthogonal frequency division multiplexing (OFDM). A cell search method in an OFDM cellular system in which a primary sync channel and a secondary sync channel are configured based on time division multiplexing (TDM) includes acquiring sync block synchronization and a primary sync channel sequence number using a primary sync channel symbol included in a frame received by a terminal, detecting a boundary of the frame and a scrambling code group using the sync block and a secondary sync channel symbol included in the frame received by the terminal, and acquiring a scrambling code using the primary sync channel sequence number and the scrambling code group, thereby reducing cell search time with low complexity.
- KSP 제안 키워드
- Cell search, Cellular system, Channel structure, Forward link, Frequency division, Frequency division multiplexing, OFDM systems, Orthogonal frequency division Multiplexing(OFDM), Pilot channel, Search time, Sequence number, Time division multiplexing, division multiplexing, low-complexity, search method, time division