Invention Grant
US08542571B2 Cell search method, forward link frame transmission method, apparatus using the same and forward link frame structure
有权
小区搜索方法,前向链路帧传输方法,使用相同和前向链路帧结构的装置
- Patent Title: Cell search method, forward link frame transmission method, apparatus using the same and forward link frame structure
- Patent Title (中): 小区搜索方法,前向链路帧传输方法,使用相同和前向链路帧结构的装置
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Application No.: US12093284Application Date: 2006-11-10
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Publication No.: US08542571B2Publication Date: 2013-09-24
- Inventor: Il-Gyu Kim , Hyeong-Geun Park , Nam-Il Kim , Kap-Seok Chang , Young-Hoon Kim , Seung-Chan Bang
- Applicant: Il-Gyu Kim , Hyeong-Geun Park , Nam-Il Kim , Kap-Seok Chang , Young-Hoon Kim , Seung-Chan Bang
- Applicant Address: KR Daejeon KR Seongnam-Si, Gyeonggi-Do KR Seoul
- Assignee: Electronics and Telecommunications Research Institute,KT Corporation,SK Telecom., Co., Ltd
- Current Assignee: Electronics and Telecommunications Research Institute,KT Corporation,SK Telecom., Co., Ltd
- Current Assignee Address: KR Daejeon KR Seongnam-Si, Gyeonggi-Do KR Seoul
- Agency: Kile Park Reed & Houtteman PLLC
- Priority: KR10-2005-0107474 20051110; KR10-2006-0074308 20060807
- International Application: PCT/KR2006/004692 WO 20061110
- International Announcement: WO2007/055526 WO 20070518
- Main IPC: H04L27/30
- IPC: H04L27/30

Abstract:
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.
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