5G Measurement Configuration Across BWP Switching for Neighbor Detection
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Solution Overview
Problem
The complexity of inter-frequency or inter-RAT neighboring cell measurement during BWP switching in 5G networks due to varying BWP configurations and SSB availability poses challenges for terminal devices, necessitating improved measurement configuration methods.
Innovation Solution
The terminal device determines the effectiveness of existing measurement windows based on DCI information, allowing it to switch between measurement window-free and measurement window-based methods during BWP changes, and receives new measurement window configurations as needed to ensure accurate neighboring cell detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the terminal device uses measurement window measurement manner to measure inter-frequency or inter-RAT neighboring cells, then measurement accuracy is improved, but power consumption increases and measurement flexibility decreases
Solution Approach 1:
The patent implements dynamic switching between measurement window measurement manner and measurement window-free measurement manner based on BWP configuration and SSB availability. The terminal device determines whether to use measurement windows by checking DCI indication information and comparing SSB frequencies with BWP frequency ranges, allowing flexible adaptation to different scenarios to reduce unnecessary power consumption while maintaining measurement accuracy when needed
Solution Approach 2:
The patent changes the measurement configuration parameters dynamically based on BWP switching. When BWP configuration changes or SSB availability changes, the terminal device adjusts whether to use measurement windows by interpreting DCI indication information, thereby optimizing the balance between measurement accuracy and power consumption according to current network conditions
2Adaptability or versatility
If the terminal device configures measurement windows for each BWP, then measurement flexibility during BWP switching is improved, but device complexity and configuration overhead increase
Solution Approach 1:
The patent implements a unified measurement window configuration mechanism that serves multiple BWPs. The network device configures measurement windows that can be applied across different BWPs, and the terminal device determines applicability through DCI indication information. This universal approach allows the same measurement window configuration to serve multiple purposes and BWPs, reducing the need for separate configurations for each BWP
Solution Approach 2:
The patent introduces DCI indication information as an intermediary mechanism to manage measurement window configurations. Instead of directly configuring separate measurement windows for each BWP, the system uses DCI to indicate whether existing measurement window configurations should be applied to current BWP. This intermediary simplifies the configuration management by providing a centralized control mechanism
3Reliability
If the terminal device continuously monitors all BWPs for SSB, then measurement completeness is improved, but processing complexity and power consumption increase
Solution Approach 1:
The patent implements local quality monitoring by checking SSB availability only in the currently active BWP. The terminal device determines whether to use measurement windows by comparing the SSB frequency with the frequency range of the active BWP, rather than continuously monitoring all BWPs. This localized approach reduces processing complexity while ensuring reliable detection of neighboring cells in the relevant frequency range
Solution Approach 2:
The terminal device performs self-determination of measurement configuration needs by autonomously comparing SSB frequency information with active BWP frequency ranges and interpreting DCI indication information. This self-service mechanism eliminates the need for continuous network instructions and complex centralized monitoring, reducing processing complexity while maintaining detection reliability
Data Source
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AI summary
This application provides a measurement configuration method and apparatus, where the method includes: A network device determines that a BWP occupied by a terminal device is switched from a first BWP to a second BWP; and the network device sends first information to the terminal device, where the first information indicates whether configuration information of a first measurement window takes effect when the terminal device occupies the second BWP, and the first measurement window is configured for the first BWP. In the foregoing method, the terminal device can determine, by using the first information, a measurement manner to measure an inter-frequency or inter-RAT neighboring cell after BWP switching.