发明名称 |
FAST UPLINK RANGING SYSTEM AND METHOD IN MOBILE COMMUNICATION SYSTEM |
摘要 |
<p>The present invention relates to a fast uplink ranging system and method in a mobile communication system. According to the present invention, a fast uplink ranging system transmits two pairs of ranging codes having the same value at locations spaced by half of FFT pointers. The fast uplink ranging system calculates a correlation value using the received two pairs of ranging codes. An order in which complex exponential twiddle factors for removing complex exponential terms corresponding to a time delay are searched is determined using the correlation value. Therefore, it is possible to reduce a time required for searching a timing error of a terminal using non-periodic symmetry of complex exponential twiddle factors corresponding to the timing error, compared with a known method of searching a complex exponential twiddle factor.</p> |
申请公布号 |
WO2008069389(A2) |
申请公布日期 |
2008.06.12 |
申请号 |
WO2007KR03073 |
申请日期 |
2007.06.25 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE;SAMSUNG ELECTRONICS CO., LTD.;MOON, YOUNG-JIN;KIM, YOUNG-IL |
发明人 |
MOON, YOUNG-JIN;KIM, YOUNG-IL |
分类号 |
H04Q7/38;H04J3/06;H04L27/26 |
主分类号 |
H04Q7/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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