SRS ANTENNA SWITCHING INTERFERENCE MITIGATION

    公开(公告)号:US20250080306A1

    公开(公告)日:2025-03-06

    申请号:US18241823

    申请日:2023-09-01

    Applicant: Apple Inc.

    Abstract: Techniques described herein includes solutions for mitigating interference related to antenna switching. A user equipment (UE) may determine a potential for interference to data reception on a second frequency band due to antenna switching associated with transmission of reference signals on a first frequency band. In response to the determination, the UE may select one or more interference mitigation measures based on an operating mode of the UE and one or more UE parameters. An interference mitigation measure may include backing off on a reported value, such as a channel quality indicator (CQI), rank indicator (RI), or reference signal received power (RSRP). The interference mitigation measure may further include skipping reference signal transmission on the first frequency band and the antenna switching associated therewith.

    SYSTEMS, METHODS, AND DEVICES FOR DYNAMIC ADAPTION OF DIFFERENT ATTENNA CONFIGURATION COMMUNICATIONS

    公开(公告)号:US20240106610A1

    公开(公告)日:2024-03-28

    申请号:US18469819

    申请日:2023-09-19

    Applicant: Apple Inc.

    CPC classification number: H04L5/0053

    Abstract: The techniques provide solutions for a user equipment (UE) and base station to switch between T1R4 and 2T4R for sounding reference signals (SRS). The UE and base station may communicate SRS using 2T4R. The UE and/or base station may detect and evaluate a signal quality trigger and/or condition relating to switching from T2R4 to T1R4. The trigger and/or condition may correspond to a channel or radio frequency (RF) quality, conflicting or problematic band combinations used in a non-standalone (NSA) scenario, whether dedicated data subscription (DDS) subscriber identity module (SIM) or non-DDS SIM is being used in a dual SIM dual active (DSDA) scenario, etc. The UE and base station may either continue using T2R4 communications or switch to T1R4 communications based on the trigger and/or evaluation.

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