Carrier frequency offset correction and doppler mitigation

    公开(公告)号:US11616664B2

    公开(公告)日:2023-03-28

    申请号:US17123193

    申请日:2020-12-16

    Abstract: Various strategies and devices for same are disclosed to correct for/mitigate frequency offset (such as due to differing accuracies between an oscillator of a transmitting device and an oscillator of a receiving device) and Doppler shift (such as due to a changing relative position between a receiving device and a transmitting device). These strategies may be employed in a MIMO setting, such as, e.g. a stationary base station and a plurality of terminal devices (e.g. user devices, mobile stations, etc.), in which the transmissions for each terminal device may be associated with a different frequency offset and a different Doppler shift.

    TIMING COMPENSATION FOR A TIMESTAMP COUNTER
    5.
    发明申请

    公开(公告)号:US20190042295A1

    公开(公告)日:2019-02-07

    申请号:US16024554

    申请日:2018-06-29

    Abstract: Particular embodiments described herein provide for an electronic device that can be configured to receive a request for a timestamp associated with a virtual machine, determine a current time from a timestamp counter, and subtract a timing compensation from the current time from the timestamp counter to create the timestamp, where the timing compensation includes an amount of time that execution of the virtual machine was suspended. In an example, a VM_EXIT instruction was used to suspend execution of the virtual machine and the timestamp counter was read before the VM_EXIT instruction was processed by a hypervisor.

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