Method and apparatus for receiving downlink and uplink radio resources in an unlicensed frequency band.

JP2026090475APending Publication Date: 2026-06-02WILUS INSTITUTE OF STANDARDS & TECHNOLOGY INC
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
WILUS INSTITUTE OF STANDARDS & TECHNOLOGY INC
Filing Date
2026-02-20
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing 5G communication systems face challenges in efficiently utilizing unlicensed frequency bands due to interference issues and resource allocation limitations, particularly in managing downlink and uplink channels in 3GPP NR systems, which affect communication quality and compatibility with existing unlicensed band equipment.

Method used

A method for resource setting and signal processing in unlicensed bands, involving the use of SS/PBCH block indices to identify resources for PDSCH and PRACH opportunities, and interpreting RB sets from DCI format for UL BWP, ensuring efficient resource allocation and minimizing overlap with idle periods.

Benefits of technology

Enables efficient transmission and reception of downlink and uplink data/control information over unlicensed bandwidth, reducing interference and enhancing communication quality in 3GPP NR systems, while ensuring compatibility with existing equipment.

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Abstract

The present invention provides a method and apparatus for configuring downlink and uplink radio resources in an unlicensed frequency band. [Solution] A method is disclosed that includes the steps of: receiving information from a base station indicating one or more SS / PBCH (synchronization signal / physical broadcast channel) block indices in the unlicensed band; and receiving downlink control information (DCI) from the base station that allocates resources for a physical downlink shared channel (PDSCH) in the unlicensed band. This enables efficient transmission of downlink and / or uplink data or control information over the unlicensed band.
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