18560865. NETWORK-ASSISTED SIGNALING FOR UPLINK DIGITAL PRE-DISTORTION (DPD) (Nokia Technologies Oy)
NETWORK-ASSISTED SIGNALING FOR UPLINK DIGITAL PRE-DISTORTION (DPD)
Organization Name
Inventor(s)
Athul Prasad of Naperville IL US
Amitabha Chosh of Naperville IL US
Gilsoo Lee of Naperville IL US
NETWORK-ASSISTED SIGNALING FOR UPLINK DIGITAL PRE-DISTORTION (DPD)
This abstract first appeared for US patent application 18560865 titled 'NETWORK-ASSISTED SIGNALING FOR UPLINK DIGITAL PRE-DISTORTION (DPD)
Original Abstract Submitted
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.