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
- 专利标题: Method and system for iterative multiple frequency hypothesis testing with Cell-ID detection in an E-UTRA/LTE UE receiver
- 专利标题(中): 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
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申请号: US13758526申请日: 2013-02-04
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公开(公告)号: US09215712B2公开(公告)日: 2015-12-15
- 发明人: Francis Swarts , Mark Kent
- 申请人: Broadcom Corporation
- 申请人地址: US CA Irvine
- 专利权人: Broadcom Corporation
- 当前专利权人: Broadcom Corporation
- 当前专利权人地址: US CA Irvine
- 代理机构: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- 主分类号: H04W72/04
- IPC分类号: H04W72/04 ; H04L27/26 ; H04J11/00 ; H04W4/00 ; H04L27/00
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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