RedCap Positioning Reference Signals With Multi-Bandwidth Hopping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently transmitting and receiving signals, particularly for reduced capability (RedCap) UEs, which require improved positioning accuracy and support for both legacy and RedCap UEs in next-generation communication systems.
Innovation Solution
A method and apparatus for transmitting and receiving signals in a wireless communication system, involving RedCap UEs, utilize assistance data to configure reference signals (RS) with specific bandwidths and frequency hopping, enabling effective communication of RS in multiple bandwidths and frequency layers, and reporting capabilities to enhance positioning accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If bandwidth is reduced for RedCap UEs, then device complexity and cost are reduced, but positioning accuracy deteriorates
Solution Approach 1:
The patent divides the frequency spectrum into multiple positioning frequency layers (PFLs), each with different bandwidth configurations. RedCap UEs can be assigned to specific PFLs with appropriate bandwidth allocations, segmenting the overall positioning system into multiple operational tiers that balance capability requirements with performance needs.
Solution Approach 2:
The patent implements dynamic frequency hopping across multiple bandwidths and PFLs for positioning reference signals. This allows the system to adaptively switch between different bandwidth configurations based on positioning accuracy requirements, enabling RedCap UEs to achieve improved positioning accuracy through temporal diversity rather than relying solely on wide instantaneous bandwidth.
2Measurement precision
If multiple bandwidths are configured for positioning, then positioning accuracy is improved, but device complexity and signal management become more difficult
Solution Approach 1:
The patent creates a universal positioning framework where multiple bandwidths and PFLs serve common positioning functions. The same positioning reference signal structure and measurement procedures are applied across different bandwidth configurations, allowing the system to achieve improved positioning accuracy through multi-bandwidth operation without proportionally increasing device complexity.
Solution Approach 2:
The patent performs preliminary configuration of assistance data containing PFL and bandwidth information before positioning measurements. This advance preparation allows UEs to efficiently manage multiple bandwidth configurations without real-time complexity, as the signal management framework is established beforehand through standardized signaling procedures.
3Reliability
If frequency hopping is implemented across multiple bandwidths, then positioning accuracy and reliability are improved, but time consumption and measurement complexity increase
Solution Approach 1:
The patent implements periodic frequency hopping patterns for positioning reference signals across multiple bandwidths and PFLs. This structured periodic approach allows UEs to efficiently track and measure signals at predictable intervals, improving positioning reliability through temporal diversity while minimizing measurement time through optimized hopping sequences and periodic measurement opportunities.
Data Source
AI summary
An embodiment relates to a next-generation wireless communication system for supporting a higher data transmission rate, etc. than that of a 4th generation (4G) wireless communication system. According to an embodiment, a method for transmitting and receiving signals in a wireless communication system and a device supporting same may be provided, and another embodiment may be provided.