상세정보
등록 이동통신시스템에서의 하향링크 신호구성 방법 및 그 장치와, 이를 이용한 동기화 셀 탐색 방법과 그 장치
- 출원번호
- 10577034 (2003.11.19)
- 공개번호
- 20070133386 (2007.06.14)
- 등록번호
- 7764593 (2010.07.27)
- 출원국
- 미국
- 협약과제
- 03MM1100, 4세대 이동통신 기술개발, 한기철
- 초록
- Disclosed is a downlink signal configuring method and device, and synchronization and cell search method and device using the same in a mobile communication system. A downlink frame has plural symbols into which pilot subcarriers are distributively arranged with respect to time and frequency axes. Initial symbol synchronization and initial frequency synchronization are estimated by using a position at which autocorrelation of a cyclic prefix of a downlink signal and a valid symbol of the downlink is maximized, and cell search and integer-times frequency synchronization are estimated by using pilot subcarriers included in the estimated symbol. Fine symbol synchronization, fine frequency synchronization, and downlink frame synchronization is estimated by using an estimated cell search result. Downlink frequency and time tracking is performed, cell tracking is performed by using a position set of pilot subcarriers inserted into the downlink frame, fine symbol synchronization tracking and fine frequency synchronization tracking are repeated by using the pilot subcarriers to perform the frequency and time tracking of the downlink frame.
- 패밀리
| 구분 | 특허 | 출원국 | KIPRIS |
|---|---|---|---|
| 등록 | 이동통신시스템에서의 하향링크 신호구성 방법 및 그 장치와, 이를 이용한 동기화 셀 탐색 방법과 그 장치 | 미국 |