Invention Grant
- Patent Title: Frequency error detection with PBCH frequency hypothesis
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Application No.: US14799515Application Date: 2015-07-14
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Publication No.: US10244426B2Publication Date: 2019-03-26
- Inventor: Huilin Xu , Alexei Gorokhov , Mariam Motamed , Raghu Challa , Joshua MacDonald , Kai Xie , Vivek Padi , Alex Mateen , Juchuan Ma
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: Qualcomm Incorporated
- Current Assignee: Qualcomm Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Arent Fox, LLP
- Main IPC: H04L27/00
- IPC: H04L27/00 ; H04L27/26 ; H04W28/02 ; H04W56/00 ; H04W76/28

Abstract:
Aspects of frequency error detection with Physical Broadcast CHannel (PBCH) frequency hypothesis are described. For example, a method and apparatus are disclosed for frequency tracking in a user equipment (UE) may include detecting a change in frequency that exceeds a pull-in range of a frequency tracking loop (FTL) of the UE. The method and apparatus may also include identifying a tracking recovery frequency in response to the change in frequency being detected, wherein the tracking recover frequency is identified from a set of frequency hypotheses and based on decoding of the PBCH received by the UE. The method and apparatus may further include updating the FTL with the tracking recovery frequency.
Public/Granted literature
- US20160057653A1 FREQUENCY ERROR DETECTION WITH PBCH FREQUENCY HYPOTHESIS Public/Granted day:2016-02-25
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