发明名称 |
Method for setting cyclic shift considering frequency offset |
摘要 |
A method for establishing a cyclic shift sequence to provide against the frequency offset is disclosed. The method calculates a distance between a channel response position of the sequence and an alias channel response position caused by a frequency offset, calculates the number of cyclic shifts per group according to the calculated distance, and establishes the cyclic shift (CS)- applying interval. This method easily establishes a cyclic shift (CS) interval at a specific location having no overlapping by considering a channel response of a reception (Rx) sequence and an alias location of this reception (Rx) sequence, although a reception (Rx) signal is shifted by a channel delay spreading or a propagation delay irrespective of categories of a domain generating a sequence, so that it can greatly reduce the number of the detection errors and the false alarm rate. And, if a sequence of the cyclic shift (CS) is allocated to a cell having a frequency offset of more than a predetermined level, the present invention can minimize the influence of a frequency offset on a high-mobility cell.
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申请公布号 |
EP1944935(A2) |
申请公布日期 |
2008.07.16 |
申请号 |
EP20080000117 |
申请日期 |
2008.01.04 |
申请人 |
LG ELECTRONICS, INC. |
发明人 |
HAN, SEUNG HEE;NOH, MIN SEOK;KWON, YEONG HYEON;LEE, HYUN WOO;KIM, DONG CHEOL;KWAK, JIN SAM;VUJCIC, DRAGAN |
分类号 |
H04L27/26;H04J13/00 |
主分类号 |
H04L27/26 |
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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