Methods and apparatuses to support aperiodic CSI for AIML systems

By configuring CSI reports with periodic and aperiodic resources and updating beam measurements, the inefficiencies of traditional beam management are addressed, leading to improved accuracy and reduced overhead and latency in AIML-based wireless communication systems.

WO2026136639A1PCT designated stage Publication Date: 2026-06-25INTERDIGITAL PATENT HOLDINGS INC
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
INTERDIGITAL PATENT HOLDINGS INC
Filing Date
2025-12-18
Publication Date
2026-06-25

AI Technical Summary

Technical Problem

Traditional beam management in wireless communication systems involves transmitting and measuring all beams, which is inefficient and leads to high overhead and latency, especially in artificial intelligence machine learning (AIML) based downlink (DL) transmit (Tx) beam prediction.

Method used

Configuring channel state information (CSI) reports for AIML systems using periodic, semi-persistent, and aperiodic resources, activating a subset of aperiodic report configurations, and updating beam measurements based on aperiodic CSI reference signal (RS) measurements to optimize beam prediction and reduce overhead and latency.

Benefits of technology

Improves beam prediction accuracy and reduces overhead and latency by selectively transmitting reference signals and using AIML models to estimate beam qualities, enhancing the efficiency of beam management in wireless networks.

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Abstract

A wireless transmit / receive unit (WTRU) may receive configuration information associated with one or more of a first type of report configurations, a second type of report configurations, or an input set of beams. The configuration information may include a report quantity parameter and one or more thresholds. The WTRU may determine one or more predicted beams based on one or more measured first RSs. The WTRU may activate one or more second type of report configurations based on one or more of a determined prediction quality or determined probability information associated with the one or more predicted beams. The WTRU may activate one or more RS resource sets associated with the activated one or more second type of report configurations based on one or more of an active beam or an overlap between RSs associated with the second type of report configuration and RSs associated with the predicted beams.
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