NCR Beam Measurement for Control-Link Interference Management
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Solution Overview
Problem
In wireless communication systems, the introduction of network-controlled repeaters (NCR) leads to interference between downlink reception and transmission beams, degrading the downlink reception performance in the control link of the NCR-MT.
Innovation Solution
The method involves the NCR-MT receiving measurement resource configuration information from a base station to measure interference values considering both the downlink reception beam in the control link and the downlink transmission beam in the access link, allowing the base station to appropriately limit the downlink transmission beam of the NCR-Fwd, thereby reducing interference impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the NCR-Fwd performs downlink transmission operation through the access link, then the communication capacity is improved, but the downlink reception performance in the control link of the NCR-MT is degraded due to interference
Solution Approach 1:
The patent segments the measurement process into multiple interference measurement resources, each associated with specific downlink transmission beams from different NCR-Fwd nodes. This allows the base station to measure and manage interference from each transmission beam separately, enabling selective beam management that maintains communication capacity while protecting control link reception performance
Solution Approach 2:
The patent implements a feedback mechanism where the NCR-MT measures interference on configured resources and reports these measurements to the base station. The base station uses this feedback information to make informed decisions about downlink transmission beam configuration, adjusting beams to avoid causing excessive interference to control link reception while maintaining access link communication capacity
2Measurement precision
If measurement resources are configured to measure interference from downlink transmission beams, then the interference management precision is improved, but the device complexity increases
Solution Approach 1:
The patent applies preliminary action by having the base station pre-configure multiple interference measurement resources before the NCR-MT performs measurements. Each measurement resource is pre-associated with specific downlink transmission beams, allowing the NCR-MT to efficiently measure interference without complex real-time resource allocation decisions, thus improving measurement precision while managing device complexity
Solution Approach 2:
The patent makes the interference measurement resources universal by designing them to be applicable across multiple NCR-Fwd nodes and multiple downlink transmission beams. This multi-functional measurement resource design allows a single set of measurement resources to serve multiple interference measurement purposes, reducing overall system complexity while maintaining precise interference measurement capabilities
Data Source
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AI summary
Provided are a method for operating a device in a wireless communication system, and a device for using the method. The method comprises: receiving, by NCT-MT of an NCR comprising the NCR-MT and NCR-Fwd, measurement resource configuration information from a base station, and measuring, by the NCR-MT, an interference value in a resource indicated by the measurement resource configuration information. The measurement resource configuration information comprises the resource for which the measurement is to be performed, and at least one of i) a downlink reception (DL Rx) beam in a control link (C-link) between the NCR-MT and the base station, and ii) a downlink transmission (DL Tx) beam in an access link between the NCR-Fwd and a terminal, the beams being related to the resource.