SELECTIVE CELLULAR INTERFERENCE MITIGATION FOR GNSS

    公开(公告)号:US20230091349A1

    公开(公告)日:2023-03-23

    申请号:US17700115

    申请日:2022-03-21

    申请人: Apple Inc.

    IPC分类号: H04W74/08 H04L5/00 H04W72/04

    摘要: User equipment (UE) may determine a probability that a cellular network may allocate a resource block to the UE having a frequency that, when a cellular transmitter of the UE transmits a radio frequency (RF) signal using the resource block, a harmonic signal may be generated that interferes with a global navigation satellite systems (GNSS) signal received by a GNSS receiver of the UE. The probability may be determined based on a number of factors that may impact resource block allocation, including a location of the UE, a current date and/or time, a historical allocation of resource blocks (which may be crowdsourced), a client type associated with a signal to be transmitted, a signal environment at the UE, real world conditions, and so on. Based on the probability, the UE may selectively perform a mitigation procedure or transmit an RF signal without performing the mitigation procedure.

    Apparatus, systems and methods for system selection and reselection

    公开(公告)号:US10104589B2

    公开(公告)日:2018-10-16

    申请号:US15091316

    申请日:2016-04-05

    申请人: APPLE INC.

    摘要: Described herein are apparatus, systems and methods for opportunistic system selection and reselection to avoid jammer desense intermodulation distortion. A method may comprise, at a user equipment (“UE”), identifying a list of frequencies and bands available to a cellular modem of the UE for one of system selection and system reselection, identifying a subset of the list of frequencies and bands based on an operation of a non-cellular wireless communication component of the UE, storing the subset of the list of frequencies and bands in a graylist, and performing, by the cellular modem, a search for one of the system selection and the system reselection based on the graylist.