NETWORK-ASSISTED SIGNALING FOR UPLINK DIGITAL PRE-DISTORTION (DPD)
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United States of America
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Issued Date -
Apr 3, 2025
app pub date -
Jun 15, 2022
filing date -
Jun 15, 2022
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Abstract
Systems, methods, apparatuses, and computer program products for network-assisted signaling for uplink digital pre-distortion (DPD). A gNB may use an uplink reference signal (RS) to measure a user equipment's (UE's) power amplifier (PA) nonlinearity, where the UE may transmit its UE-specific RS with maximum transmit (Tx) power at a PA measurement window in the uplink. The gNB may train an artificial intelligence-based model to approximate the pre-distortion function (with PA parameters). The gNB may signal DPD-related information, and the UE may determine (and adjust) its DPD function based on the gNB signalling.
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