Neighbor Cell Measurement Scheduling Across Mixed Subcarrier Spacing
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Solution Overview
Problem
The increasing sophistication of wireless devices in wireless communication systems leads to challenges in ensuring accurate signal transmission and reception while minimizing power consumption, particularly during neighbor cell measurements, which can result in inefficient network behavior and resource waste.
Innovation Solution
Configuring wireless devices to perform neighbor cell measurements concurrently with serving cell communications by selecting reference signals based on considerations such as subcarrier spacing, frequency range, beam configuration, and signal type, and allowing for a temporary pause in serving cell communication if timing differences are significant.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If wireless devices perform neighbor cell measurements concurrently with serving cell communications, then measurement accuracy and network efficiency are improved, but device complexity and power consumption increase
Solution Approach 1:
The patent segments the reception process by separating reference signal reception for neighbor cell measurements from regular serving cell communications. The device selectively receives reference signals during specific time resources when neighbor cell measurements are configured, while maintaining normal communication resources. This segmentation allows accurate measurements without requiring the device to handle all signals simultaneously, thus reducing complexity while preserving measurement precision.
Solution Approach 2:
The patent implements dynamic resource allocation where the device adaptively adjusts its reception behavior based on measurement configuration. When neighbor cell measurements are configured, the device dynamically selects which reference signals to receive and pauses serving cell communications during measurement periods. This dynamic approach optimizes measurement accuracy while managing device complexity through context-aware resource management.
2Productivity
If wireless devices perform neighbor cell measurements concurrently with serving cell communications, then network efficiency is improved, but power consumption increases
Solution Approach 1:
The patent employs periodic action by configuring neighbor cell measurements at specific time intervals rather than continuously. The device receives reference signals during designated measurement periods and pauses serving cell communications during these intervals. This periodic measurement approach maintains network efficiency by ensuring regular neighbor cell assessment while reducing overall power consumption compared to continuous simultaneous reception of all signals.
Solution Approach 2:
The patent ensures continuity of useful action by maintaining serving cell communications during periods when neighbor cell measurements are not configured. The device seamlessly switches between measurement modes and communication modes, ensuring that communication resources are fully utilized during non-measurement periods. This approach maintains network productivity while minimizing unnecessary power consumption by avoiding continuous measurement activities.
3Reliability
If wireless devices selectively receive reference signals based on subcarrier spacing and timing differences, then unexpected behavior is minimized, but device complexity increases
Solution Approach 1:
The patent applies parameter changes by adjusting device reception behavior based on specific signal parameters such as subcarrier spacing and timing differences. The device evaluates these parameters to determine whether to receive reference signals for neighbor cell measurements or maintain serving cell communications. This parameter-driven approach ensures predictable and reliable behavior by following defined rules for signal selection, while managing complexity through systematic parameter evaluation rather than arbitrary decisions.
Data Source
AI summary
This disclosure relates to techniques for aligning wireless device and cellular network expectations and behavior in conjunction with neighbor cell measurements in a wireless communication system. A wireless device may determine that a reference signal is configured for a neighbor cell measurement when communication with the serving cell is also configured. The wireless device may determine whether the reference signal for the neighbor cell measurement is configured with same or different subcarrier spacing as the communication with the serving cell. The wireless device may select one or more of the reference signal for the neighbor cell measurement or the communication with the serving cell to receive based at least in part on whether the reference signal for the neighbor cell measurement is configured with same or different subcarrier spacing as the communication with the serving cell.