Dynamic Measurement Gaps for CSI-RS Positioning and Sensing
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Solution Overview
Problem
Existing wireless communications systems lack support for measurement gaps necessary for CSI-RS measurements used in hybrid services such as positioning and sensing, limiting their ability to utilize CSI-RS for these applications.
Innovation Solution
Enhanced measurement gap configurations are introduced to facilitate CSI-RS measurements for positioning and sensing operations, aligning the measurement gap parameters with RS configurations, allowing for inter-frequency and intra-frequency measurements, and supporting joint communication and tracking operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If measurement gap configurations are not provided for CSI-RS measurements, then existing wireless communication systems can operate with standard configurations, but they cannot perform positioning and sensing operations using CSI-RS
Solution Approach 1:
The measurement gap configuration is made dynamic and adaptable through separate configuration parameters that can be independently adjusted for different service types (positioning, sensing, communication). The configuration includes dynamic timing parameters such as window periodicity, window length, and window offset that can be adjusted based on specific operational requirements, allowing the system to adapt to different measurement needs without being constrained by fixed structures
Solution Approach 2:
The measurement gap configuration is segmented into distinct components: measurement gap configuration parameters, RS resource configuration parameters, and timing configuration parameters. This segmentation allows each component to be optimized independently for specific functions (communication, positioning, sensing) while maintaining overall system coherence, enabling versatile service support without overwhelming complexity
2Measurement precision
If measurement gap parameters are aligned with RS configurations for inter-frequency and intra-frequency measurements, then measurement accuracy for hybrid services is improved, but configuration complexity increases
Solution Approach 1:
The invention employs parameter changes by introducing specific measurement gap configuration parameters (window periodicity, window length, window offset) that can be adjusted to align with RS configurations. These parameter changes enable precise control over measurement timing and duration, allowing the system to optimize measurement accuracy for both inter-frequency and intra-frequency measurements while maintaining configurable flexibility
Solution Approach 2:
The measurement gap configuration framework is designed with universal applicability across multiple service types (communication, positioning, sensing) and measurement types (inter-frequency, intra-frequency). The same configuration structure supports diverse measurement scenarios through parameter adjustment, reducing the need for separate specialized configurations and managing complexity through unified design
3Adaptability or versatility
If measurement gaps are introduced for target tracking measurements, then positioning and sensing operations become possible, but time resources for communication are reduced
Solution Approach 1:
The measurement gap configuration employs periodic action through the window periodicity parameter, which defines the periodic interval at which measurement windows occur. This periodic structure allows the system to allocate time resources efficiently by confining measurements to specific periodic intervals, thereby minimizing continuous time loss while enabling necessary positioning and sensing operations through structured, periodic measurement opportunities
Solution Approach 2:
The measurement gap configuration is made dynamic through adjustable parameters (window length, window periodicity, window offset) that can be optimized based on service requirements. This dynamic configuration allows the system to adapt measurement time consumption to actual needs, minimizing time loss for communication by adjusting measurement window characteristics rather than allocating fixed, excessive measurement time
Data Source
AI summary
Various aspects of the present disclosure relate to enhancing measurement gap configurations for measurement entities, such as user equipment (UEs) performing positioning, sensing, or other target tracking services or measurement operations. For example, a UE may be configured to perform positioning/sensing measurements based on a measurement gap that is enhanced for the measurements (e.g., a measurement gap time period and/or periodicity), where a measurement gap configuration is aligned with a reference signal configuration. The measurement gap may be associated with parameters that facilitate use of the reference signal for both communication and target tracking (e.g., positioning, sensing).