公开(公告)号：US20250112599A1

公开(公告)日：2025-04-03

申请号：US18560865

申请日：2022-06-15

Applicant: Nokia Technologies Oy

Inventor： Jun TAN ,  Athul PRASAD ,  Amitabha CHOSH ,  Gilsoo LEE ,  Jie CHEN

IPC: H03F1/32 ,  H04B1/04

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.