公开(公告)号：US09686750B2

公开(公告)日：2017-06-20

申请号：US13623807

申请日：2012-09-20

Applicant: Apple Inc.

Inventor： Zhu Ji ,  Jason Shi ,  Johnson Sebini ,  Navid Damji ,  Li Su

IPC: H04L12/26 ,  H04W52/02 ,  H04W76/04

CPC classification number: H04W52/0283 ,  H04W76/28 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/146 ,  Y02D70/24 ,  Y02D70/25

Abstract: Methods and apparatus for adaptively adjusting temporal parameters such as e.g., wake-up times of digital tracking algorithms (such as timing, frequency and power control). In one exemplary embodiment, wake-up times for tracking loops are based on success/error metrics (e.g., Block Error Rate (BLER), Bit Error Rate (BER), Packet Error Rate (PER), Cyclic Redundancy Checks (CRC), etc.) of one or more previous discontinuous reception (DRX) cycles. In a second embodiment, wake-up times for tracking loops are based on residual frequency and timing errors, etc.