Using a Frequency Error Estimate of a First Radio Access Technology (RAT) for a Second RAT

摘要

Performing detection of a synchronization beacon. The UE may include a first radio which supports, e.g., simultaneously, a first radio access technology (RAT) and a second RAT. The UE may perform transmission according to the first RAT on the first radio with a base station. The UE may receive a request to perform a tune-away to detect a synchronization beacon on the second RAT. The synchronization beacon may repetitively occur in successive first time periods. The UE may repeatedly perform a search for the synchronization beacon in different sub-portions over successive first time periods. The search may be repeatedly performed until the synchronization beacon is located in a respective sub-portion of one of the successive time periods.

主权项

1. An apparatus for configuration within a user equipment device (UE) comprising a first radio, wherein the first radio is configurable to operate according to a first radio access technology (RAT) and a second RAT, comprising:
one or more processing elements, configured to:
operate the first radio of the UE according to the first RAT;operate the first radio according to the second RAT, wherein the first radio has a lesser frequency of sleep and wake-up cycles when operating according to the first RAT than when operating according to the second RAT, wherein the first radio uses a first clock for each of the first RAT and the second RATwhen the radio is operating according to the first RAT, perform a frequency error estimate (FEE) of the first clock and adjusting the first clock based on the FEE, wherein performing the FEE and adjusting the first clock when operating according to the first RAT operates to reduce a frequency of the radio performing a FEE and adjusting the first clock when operating according to the second RAT.