NR CORESET Valid-Region Decoding for Narrow-Band Access

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Solution Overview

Problem

Existing NR network-based communication systems do not effectively support narrow-band communication by considering CORESET configurations in initial access, limiting versatility and efficiency.

Innovation Solution

A method for a UE to identify a valid region in a CORESET and decode a portion of it using pointing information, and a serving cell to generate and provide this information, allowing efficient narrow-band communication by allocating a narrow band for communication and generating pointing information indicating the valid region in the CORESET.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a minimum bandwidth is defined for CORESET in initial access, then communication reliability is ensured, but adaptability to narrow-band communication is limited

Engineering Contradiction:

Improveadaptability to narrow-band communicationVSAvoidcommunication reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The CORESET is segmented into a first region covering the full CORESET bandwidth and a second region covering only the narrow band. This allows the UE to focus decoding efforts on the relevant narrow band portion (second region) while the gNB maintains the full CORESET structure for reliability. The segmentation enables narrow-band adaptability without compromising the overall reliability of the communication system.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the CORESET are assigned different qualities or purposes: the first region maintains full bandwidth coverage for reliable control signaling, while the second region is optimized for narrow-band communication. This local differentiation allows the system to simultaneously support both reliable communication and narrow-band adaptability by treating different parts of the CORESET differently.

Inventive Principle:

Principle #3Local quality

2Use of energy by moving object

If the UE decodes the entire CORESET, then communication reliability is maintained, but energy consumption increases

Engineering Contradiction:

Improveenergy consumptionVSAvoidcommunication reliability

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The patent extracts the narrow band portion (second region) from the full CORESET for targeted decoding by the UE. Instead of decoding the entire CORESET, the UE only decodes the relevant narrow band region, significantly reducing energy consumption while maintaining communication reliability through the preserved first region that ensures reliable control signaling.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The UE performs partial decoding by focusing only on the narrow band portion (second region) rather than decoding the entire CORESET. This partial action is sufficient for narrow-band communication needs and reduces energy consumption, while the first region provides excessive coverage that ensures reliability even when the second region is decoded selectively.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS12531706B2User equipment and serving cell performing communication based on new radio network, and operating methods thereof

Publication Date: 2026.01.20 SAMSUNG ELECTRONICS CO LTD

AI summary

An operating method of a user equipment performing new radio (NR) network-based communication with a serving cell in a narrow band includes receiving a CORESET and pointing information from the serving cell, the pointing information indicating a valid region in a region of the CORESET, identifying the valid region in the CORESET, based on the pointing information, selectively decoding a portion of the CORESET, the portion of the CORESET corresponding to the valid region, and obtaining downlink control information (DCI) based on a result of the decoding.