PHYSICAL (PHY) LAYER SECURITY MODES
    202.
    发明公开

    公开(公告)号:US20240349040A1

    公开(公告)日:2024-10-17

    申请号:US18292054

    申请日:2022-08-17

    CPC classification number: H04W12/03

    Abstract: Certain aspects of the present disclosure provide techniques for securing physical (PHY) layer communications. Certain aspects relate to a method for wireless communication by a user equipment (UE). In some examples, the method includes receiving, from a wireless communication device, an indication of a mode of a plurality of modes for use for secure communication over a physical (PHY) channel, wherein each of the plurality of modes is associated with one or more of: one or more types of signals to secure using one or more secret keys; or one or more techniques to secure communication using the one or more secret keys. In some examples, the method includes communicating over the PHY channel in accordance with the mode.

    IDENTIFICATION OF A SLOT FOR SOUNDING SIGNAL TRANSMISSION

    公开(公告)号:US20240297770A1

    公开(公告)日:2024-09-05

    申请号:US18262565

    申请日:2021-03-27

    CPC classification number: H04L5/0094 H04L5/0051 H04L5/0096

    Abstract: A user equipment (UE) may be configured to transmit sounding reference signals to sound over ports of a channel. The UE may be configured to receive a message to trigger transmission of at least one sounding reference signal (SRS) of at least one SRS resource set for sounding over an active bandwidth part (BWP) in an upcoming slot, the upcoming slot being offset by a number of available slots from a reference slot indicated by the message. The UE may be further configured to detect a gap in which operation for the active BWP is suspended occurring before the transmission of the at least one SRS of the at least one SRS resource set is complete.

    METHODS AND APPARATUS FOR MAINTAINING TRANSMISSION INTEGRITY AND AUTHENTICITY THROUGH CHANNEL MEASUREMENTS AND REPORTING

    公开(公告)号:US20240259799A1

    公开(公告)日:2024-08-01

    申请号:US18289197

    申请日:2022-05-02

    CPC classification number: H04W12/06 H04W12/121

    Abstract: The connection between a user equipment (UE) and a base station may be authenticated in the physical layer, and the presence of an unauthorized intervening device may be identified based on predicted measurement values of downlink reference signals and the actual measurement values for the current downlink reference signals. The predicted measurement values are produced based on previous measurements of downlink reference signals that are known to be received from the base station, e.g., after upper layer initial authentication. The predicted values may be for positioning measurements, channel measurements, or velocity or direction of travel measurements, or a combination thereof. A difference between the predicted and actual measurement values indicates that the previously received reference signals and the currently received reference signals are not from the same entity, and thus, an intervening entity is likely present in the communication channel performing a man in the middle or replay attack.

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