상세정보
등록 직교 주파수 분할 다중 접속 시스템의 상향 링크 레인징 시스템 및 레인징 방법
- 출원번호
- 10971787 (2004.10.21)
- 공개번호
- 20050141474 (2005.06.30)
- 등록번호
- 7359366 (2008.04.15)
- 출원국
- 미국
- 초록
- Disclosed is a ranging system and method in an OFDMA system. The ranging system includes complex exponential twiddle storage units for respectively storing complex exponential twiddle factors corresponding to a timing error, complex multipliers for respectively complex-multiplying the complex exponential twiddle factors by received uplink ranging data, code correlators for respectively correlating the outputs of the complex multipliers and ranging codes, and threshold comparators for respectively comparing the outputs of the code correlators with a threshold.
- KSP 제안 키워드
- Complex Exponential, Twiddle Factor, ranging system, timing error