发明授权
US09215712B2 Method and system for iterative multiple frequency hypothesis testing with Cell-ID detection in an E-UTRA/LTE UE receiver 有权
用于在E-UTRA / LTE UE接收机中进行Cell-ID检测的迭代多频率假设检验的方法和系统

Method and system for iterative multiple frequency hypothesis testing with Cell-ID detection in an E-UTRA/LTE UE receiver
摘要:
A mobile device receives a signal comprising a PSS and a SSS. The mobile device performs iterative MFHT utilizing a reduced number of MFH branches. At each iteration, frequency offset estimation and Cell-ID detection are concurrently performed. An iteration starts with selecting initial frequency offsets spanning a frequency offset estimation range. The selected initial frequency offsets are placed in the MFH branches. A particular MFH branch with a maximum PSS correlation peak magnitude is selected at the iteration. A frequency offset estimate in the selected MFH branch is utilized for frequency control. The frequency offset estimation range utilized for the current iteration is reduced for the next iteration. A Cell-ID is declared if the Cell-ID is consistently detected not only within a particular iteration on the basis of having detected consistent cell ID information for the first and second halves of a radio frame, but also from iteration to iteration.
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