RMTC Framework for 5G Radio Resource Measurement Configuration
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Solution Overview
Problem
Current radio resource management in 5G networks faces challenges in efficiently configuring radio resource measurements across wireless communication systems with overlapping carriers of varying bandwidths, which affects data transmission quality and network capacity.
Innovation Solution
A radio resource management measurement and timing configuration (RMTC) framework is introduced, which includes lists of synchronization signal block and channel state information reference signal measurement configurations, allowing for flexible configuration of radio resource measurements based on carrier frequency, bandwidth, and numerology, enabling UEs to perform quality measurements such as RSRP, RSSI, and SIR.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a unified carrier bandwidth is required for all UEs, then network management is simplified, but adaptability to varying UE capabilities and carrier conditions is reduced
Solution Approach 1:
The patent segments the measurement configuration into multiple independent lists (SMTC list and CMTC list), where each list can be independently configured for different bandwidths and numerologies. This allows the network to provide tailored measurement configurations to different UEs based on their capabilities and carrier conditions, resolving the contradiction between simplified management and adaptability.
Solution Approach 2:
The patent introduces dynamic configurability where the network can adaptively select and configure different measurement parameters (such as ssb-Periodicity, csi-RS-Periodicity, measurement bandwidth) based on real-time carrier conditions and UE capabilities. This dynamic approach enables the system to maintain simplicity through automated adaptation while achieving versatility through conditional configuration.
2Measurement precision
If detailed measurement configurations are provided for all carrier conditions, then measurement precision is improved, but signaling overhead and system complexity increase
Solution Approach 1:
The patent applies local quality by providing specific measurement configurations tailored to local carrier conditions and UE capabilities. Each UE receives customized measurement configurations (SMTC/CMTC) appropriate to its specific operating context rather than a universal configuration, achieving high measurement precision without requiring all UEs to process complex universal configurations.
Solution Approach 2:
The patent utilizes parameter changes by allowing the network to dynamically adjust measurement parameters (bandwidth, periodicity, offsets) based on carrier conditions and UE capabilities. This enables precise measurements to be achieved through adaptive parameter selection rather than through complex fixed configurations, reducing overall system complexity while maintaining measurement accuracy.
3Adaptability or versatility
If all UEs support the same carrier bandwidth, then device compatibility is improved, but support for varying bandwidth requirements and numerologies is reduced
Solution Approach 1:
The patent achieves universality by creating a measurement framework that can handle multiple bandwidths and numerologies through a unified configuration structure. The SMTC and CMTC lists can accommodate different bandwidth configurations (e.g., 100MHz, 200MHz, 400MHz) and numerologies (15kHz, 30kHz, 60kHz SCS), allowing the same system to serve diverse UE capabilities reliably without requiring all UEs to support identical bandwidths.
Data Source
AI summary
A radio resource measurement (RRM) and timing configuration (TC) framework can facilitate efficient configuration of RRM measurements in wireless communications systems with variable carrier and transmission bandwidths. The RMTC can comprise a list of synchronization signal (SS) block measurement and timing configurations (SMTCs) and a list of channel state information reference signal (CSI-RS) measurement and timing configurations (CMTCs). A framework is proposed to allow for efficient signaling of measurement configurations in cellular wireless communications systems with overlapping carriers of varying bandwidths comprising carriers without synchronization signals as well as bandwidth parts covering parts of the spectrum of a carrier.