Invention Grant
US07991083B2 Method and system for detecting preambles in a multi-cell system
有权
用于在多小区系统中检测前导码的方法和系统
- Patent Title: Method and system for detecting preambles in a multi-cell system
- Patent Title (中): 用于在多小区系统中检测前导码的方法和系统
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Application No.: US11605600Application Date: 2006-11-28
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Publication No.: US07991083B2Publication Date: 2011-08-02
- Inventor: Yanxin Na , Hang Jin
- Applicant: Yanxin Na , Hang Jin
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Main IPC: H04L27/06
- IPC: H04L27/06
Abstract:
A method and system is provided for detecting preambles in a multi-cell communication system. The method detects preambles reliably even in the presence of interference caused by multiple cells reusing the same frequency in the multi-cell communication system. After receiving a signal in the receiving period, the time domain signal is sampled and transformed into the frequency domain vector. The correlation vector is calculated with the frequency domain vector and pseudonoise code of the wireless station. The presence of a preamble is verified if the value in the correlation vector exceeds a predetermined threshold.
Public/Granted literature
- US20070297540A1 Method and system for detecting preambles in a multi-cell system Public/Granted day:2007-12-27
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