Apple Inc.

David Öhmann

Amir Farajidana

Sami M Almalfouh

Hongbo Yan

Shengshan Cui

Systems and methods are provided for a user equipment (UE) to perform frequency offset (FO) delta tracking. For an anchor component carrier (CC), the UE wakes up to perform tracking updates on a plurality of successive DRX cycles. For the non-anchor CC, the UE determines a minimum update interval &#x394;t, and schedules wake-ups on a first subset of the plurality of successive DRX cycles based on the minimum update interval &#x394;t. For the first subset of the plurality of successive DRX cycles with scheduled wake-ups, the UE performs the tracking updates on the non-anchor CC and updates an FO delta between the anchor CC and the non-anchor CC. For a second subset of the plurality of successive DRX cycles without the scheduled wake-ups on the non-anchor CC, the UE applies the FO delta to correct for a frequency error.

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Bavaria-Bayern, Germany

David Öhmann