发明名称 |
FREQUENCY AND TIME SYNCHRONIZATION METHODS AND APPARATUS |
摘要 |
Methods and apparatus for have frequency offset estimation and cell search in radio communication systems take into account the time-frequency correlation properties of reference and synchronization signals in such systems. This reduces the probability of misdetection of the physical layer cell ID and frequency offset by accounting for time-frequency ambiguities and evaluating correlation signal peaks in the frequency domain, saving signal processing time and making initial cell search considerably faster. Also, lower-grade and hence cheaper oscillators can be used without causing problems in the user's experience with a receiver, such as a cellular telephone. |
申请公布号 |
WO2011054794(A1) |
申请公布日期 |
2011.05.12 |
申请号 |
WO2010EP66590 |
申请日期 |
2010.11.02 |
申请人 |
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL);AXMON, JOAKIM;LINDOFF, BENGT |
发明人 |
AXMON, JOAKIM;LINDOFF, BENGT |
分类号 |
H04L7/04;H04B7/26;H04W56/00 |
主分类号 |
H04L7/04 |
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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