Reference Signal Muting Configuration for Wireless Positioning
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Solution Overview
Problem
Current methods for managing reference signal muting in wireless communication networks are inefficient, particularly in non-uniform environments, as they require complex configurations and lack standardized approaches, leading to increased UE complexity and suboptimal positioning performance.
Innovation Solution
Defining muting configurations using a combination of a muting sequence and a reference point, allowing for differentiated muting occasions across cells, and enabling signaling to propagate and optimize muting configurations among cells, reducing the need for predefined patterns and blind detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complex predefined muting configurations are used for reference signals, then positioning performance can be improved, but UE complexity and configuration complexity increase
Solution Approach 1:
The patent uses a base muting sequence that can be copied and applied across multiple cells with different reference points. Instead of defining unique complex muting configurations for each cell, the same base sequence is reused and shifted in time, reducing UE complexity while maintaining positioning performance through coordinated muting across cells.
Solution Approach 2:
The patent changes the time parameter (reference point) of the muting sequence for different cells while keeping the base sequence structure the same. This allows the system to achieve differentiated muting patterns across cells without increasing the fundamental complexity of the muting configuration that the UE must process.
2Object-affected harmful factors
If cell-specific predefined muting patterns are implemented, then interference management can be improved, but signaling complexity and configuration overhead increase
Solution Approach 1:
The base muting sequence serves multiple functions: it provides interference management for all cells using the sequence, establishes a standardized pattern that UEs can efficiently process, and reduces signaling overhead through reuse. The universal base sequence is adapted to different cells through simple time-shifting based on reference points, rather than requiring unique sequences for each cell.
Solution Approach 2:
The muting configuration is segmented into a reusable base sequence component and a cell-specific reference point component. This segmentation allows the base sequence to be defined once and reused across multiple cells, reducing signaling overhead, while the reference points provide the necessary cell-specific differentiation for interference management.
3Stability of the object's composition
If standardized muting configuration approaches are adopted, then network coordination can be improved, but flexibility in non-uniform environments may be reduced
Solution Approach 1:
The patent introduces dynamics by allowing different reference points to be assigned to different cells based on their specific environmental conditions and interference patterns. While the base muting sequence structure remains standardized for network coordination, the reference points can be dynamically adjusted to adapt to non-uniform environments, combining standardization with flexibility.
Data Source
AI summary
The present invention provides a muting configuration for reference signal (RS) transmission as a pattern defined by at least the combination of a muting sequence and a reference point. Muting occasions for a given wireless communication network cell (20) thus are differentiated from another cell by use of a different muting sequence, a different reference point, or both. Moreover, in one or more embodiments, the present invention provides for the use of a common muting sequence or reference point across cells (20), with muting occasions being differentiated between cells (20) through use of different reference points (in the case of a common muting sequence), or through use of different muting sequences (in the case of a common reference point), or different sequences and different reference points. Such arrangements simplify the signaling needed to control or indicate the muting configuration in use in the cells of interest, provide an advantageous basis for propagating muting configurations among cells (20), eliminate the need for predefined muting configurations, and the need for blind detection of muting by wireless communication apparatuses (14), such as UEs.