RACH-less recovery from radio link failure (RLF) based on RLF predictions

The WTRU uses AI/ML to predict RLF and perform early synchronization with a target cell, minimizing data loss and interruption by preparing for efficient RRC re-establishment, thus addressing the costs and inefficiencies of preemptive recovery actions.

WO2026136545A1PCT designated stage Publication Date: 2026-06-25INTERDIGITAL PATENT HOLDINGS INC
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
INTERDIGITAL PATENT HOLDINGS INC
Filing Date
2025-12-17
Publication Date
2026-06-25

Smart Images

  • Figure US2025060116_25062026_PF_FP_ABST
    Figure US2025060116_25062026_PF_FP_ABST
Patent Text Reader

Abstract

A wireless transmit / receive unit (WTRU) comprises a processor configured to send capability information related to radio link failure (RLF) prediction based on an artificial intelligence (AI) / machine learning (ML) model, receive configuration information associated with radio link monitoring (RLM) and RLF detection and prediction, wherein the configuration information comprises an early synchronization configuration associated with a target cell for RLF recovery. The processor may predict radio link failure of a serving cell of the WTRU at a predicted RLF time, perform early synchronization with the target cell based on the early synchronization configuration, detect a RLF of the serving cell at the predicted RLF time or within a time window that includes the predicted RFL time, and perform a recovery of a connection via the target cell.
Need to check novelty before this filing date? Find Prior Art