Terminal, radio communication method, and base station

By implementing a terminal with a transmitting unit for beam reporting and managing UL control information retransmission, the challenges of inadequate UE-initiated beam reporting in MIMO systems are addressed, improving communication quality and throughput.

WO2026140946A1PCT designated stage Publication Date: 2026-07-02NTT DOCOMO INC
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
NTT DOCOMO INC
Filing Date
2025-12-12
Publication Date
2026-07-02

AI Technical Summary

Technical Problem

Inadequate consideration of UE-initiated beam reporting (CSI measurement/reporting) for MIMO in future wireless communication systems may hinder lower latency communication, potentially compromising communication quality and throughput.

Method used

A terminal is equipped with a transmitting unit to send a first UL channel for beam reporting and a control unit to manage UL control information retransmission based on specific conditions, including the introduction of a new UCI type and clarification of UE operations to handle collisions and overlaps.

Benefits of technology

This approach enhances communication quality and throughput by enabling effective UE-initiated beam reporting, reducing latency, and ensuring proper control of UE operations in scenarios where UCI transmission is not possible.

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Abstract

A terminal according to one aspect of the present disclosure comprises a transmitting unit that transmits a first uplink (UL) channel that notifies a second UL channel for transmitting a beam report (UEIBR) initiated by the terminal, and a control unit that controls retransmission of UL control information (UCI) for the UEIBR if the UCI cannot be transmitted, wherein the control unit determines not to retransmit the UCI on the basis of a specific condition.
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