FREQUENCY ERROR DETECTION WITH PBCH FREQUENCY HYPOTHESIS

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 tr...

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Bibliographische Detailangaben
Hauptverfasser: PADI, Vivek, MOTAMED, Mariam, MACDONALD, Joshua, MA, Juchuan, GOROKHOV, Alexei, XU, Huilin, XIE, Kai, MARTEEN, Alex, CHALLA, Raghu
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung: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.