US Patent Application 17659421. L1 SECURITY BY ADDING ARTIFICIAL AM/PM simplified abstract

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L1 SECURITY BY ADDING ARTIFICIAL AM/PM

Organization Name

QUALCOMM Incorporated


Inventor(s)

Igor Gutman of Hod HaSharon (IL)


Yavuz Yapici of Florham Park NJ (US)


Tao Luo of San Diego CA (US)


L1 SECURITY BY ADDING ARTIFICIAL AM/PM - A simplified explanation of the abstract

  • This abstract for appeared for US patent application number 17659421 Titled 'L1 SECURITY BY ADDING ARTIFICIAL AM/PM'

Simplified Explanation

The abstract describes a method for a network node and a user equipment (UE) to handle AM/PM (amplitude-to-phase modulation) impairments in a wireless communication system. The network node selects a reference AM/PM impairment signature and transmits it to the UE through a security signal. The network node also sends at least one reference signal to the UE via a downlink channel, which includes added AM/PM impairment based on the reference signature. The UE receives the reference signal and estimates the AM/PM impairment signature. It then compares the estimated signature with the reference signature and decides whether to keep or discard the associated downlink channel slot based on the match.


Original Abstract Submitted

A network node may select a reference AM/PM impairment signature. The network node may transmit, to a UE, a first indication of the reference AM/PM impairment signature via a security signal. The network node may transmit, to the UE, at least one reference signal via a downlink channel. The at least one reference signal may include added AM/PM impairment based on the reference AM/PM impairment signature. The UE may receive, from a transmitter, at least one reference signal via a downlink channel. The UE may estimate an AM/PM impairment signature in the at least one reference signal. The UE may identify whether the estimated AM/PM impairment signature matches a reference AM/PM impairment signature. Further, the UE may maintain or discard at least one slot associated with the downlink channel based on whether the estimated AM/PM impairment signature matches the reference AM/PM impairment signature.