SBFD Resource Block Measurement for Full Duplex Interference Handling

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Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently performing measurements across subband non-overlapping full duplex configurations, particularly in managing interference and optimizing resource block utilization.

Innovation Solution

A Wireless Transmit/Receive Unit (WTRU) is configured to perform measurements on both uplink and non-uplink resource blocks within a subband non-overlapping full duplex configuration, determining and transmitting specific measurements to enhance communication efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If measurements are performed on all resource blocks in subband non-overlapping full duplex configuration, then measurement completeness is improved, but measurement precision deteriorates due to interference from simultaneous uplink and downlink transmissions

Engineering Contradiction:
Improvemeasurement precisionVSAvoidmeasurement complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments the resource blocks into uplink resource blocks and non-uplink resource blocks within the subband. The WTRU performs different measurement operations on each segment: determining a first measurement for uplink RBs and additional measurements for non-uplink RBs. This segmentation allows precise handling of interference-affected measurements while maintaining completeness of the overall measurement process.

Inventive Principle:
Principle #1Segmentation

2Productivity

If subband non-overlapping full duplex configuration is used, then resource block utilization is improved, but interference management becomes more difficult

Engineering Contradiction:
Improveresource block utilizationVSAvoidinterference
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by treating uplink resource blocks and non-uplink resource blocks differently in terms of measurement handling. Uplink RBs are acknowledged to have different interference characteristics and are measured separately with appropriate processing. This localized approach to measurement quality ensures that interference-affected measurements are properly managed while maintaining high resource block utilization through full duplex operation.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS20260074876A1Methods, architectures, apparatuses and systems for subband non-overlapping full duplex configuration
Publication Date: 2026.03.12 INTERDIGITAL PATENT HOLDINGS INC
  • US20260074876A1 patent drawing
  • US20260074876A1 patent drawing
  • US20260074876A1 patent drawing

AI summary

Procedures, methods, architectures, apparatuses, systems, devices, and computer program products for measurements in wireless systems. A Wireless Transfer/Receive Unit, WTRU, receives information indicative of an uplink, UL, subband, SB, receives an indication to perform a measurement on a first set of resource blocks, RBs, and a first set of symbols, wherein the first set of symbols include a first one or more subband non-overlapping full duplex, SBFD, symbol, on condition that the first set of RBs includes both RBs in the UL SB and RBs outside the UL SB, determines a first measurement for the RBs in the first set of RBs that are in the UL SB and at least one additional measurement for at least one RB in the first set of RBs that are outside the UL SB, and transmits a message including the first measurement and the at least one additional measurement.