PRS Configuration Signaling Overhead Reduction
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Solution Overview
Problem
The existing methods for transmitting positioning assistance information in 5G New Radio (NR) networks result in high signaling overhead due to the need to carry both preconfigured and on-demand positioning reference signal (PRS) configurations, leading to increased time delays and resource consumption.
Innovation Solution
A method where a network device transmits a set of PRS configurations to a terminal and indicates their usage, allowing the terminal to determine whether the configurations are preconfigured or on-demand, thereby reducing the need to carry both types of configurations in signaling, thus saving signaling resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If both preconfigured and on-demand PRS configurations are carried in signaling, then positioning assistance information can be fully provided, but signaling overhead increases
Solution Approach 1:
The patent extracts and separates the PRS configuration information from the general positioning assistance information. By introducing a specific field to indicate whether PRS configurations are preconfigured or on-demand, the system can selectively transmit only the necessary configuration types, reducing redundant signaling while maintaining complete positioning assistance information.
Solution Approach 2:
The patent segments the PRS configuration transmission into distinct categories (preconfigured and on-demand) with separate indication fields. This segmentation allows the network to transmit configuration information in a structured manner, enabling the terminal to process and apply the appropriate configuration type without requiring all possible configuration variants to be transmitted simultaneously.
2Adaptability or versatility
If both preconfigured and on-demand PRS configurations are transmitted, then positioning flexibility is maintained, but time delay increases
Solution Approach 1:
The patent implements preliminary action by preconfiguring PRS parameters in advance and marking them with a specific indication. This allows the terminal to use preconfigured parameters immediately without requiring real-time network response, thereby reducing time delay while maintaining the flexibility to switch to on-demand configurations when needed.
Solution Approach 2:
The patent introduces dynamic indication fields that allow the network to switch between preconfigured and on-demand PRS configuration modes based on real-time needs. This dynamic mechanism enables the system to adapt to changing positioning requirements while minimizing time delay by quickly transitioning between configuration types rather than transmitting all configurations simultaneously.
3Measurement precision
If comprehensive PRS configurations are carried in signaling, then positioning accuracy is ensured, but resource consumption increases
Solution Approach 1:
The patent applies local quality by providing different levels of PRS configuration detail based on the specific needs of each positioning scenario. Instead of transmitting all possible PRS configurations with full detail, the system transmits only the necessary configuration parameters for the current positioning task, reducing resource consumption while maintaining positioning accuracy for the specific application.
Solution Approach 2:
The patent implements partial action by transmitting only the essential PRS configuration information required for accurate positioning, rather than all possible configurations. The indication fields allow the terminal to understand which configurations are necessary, enabling selective processing that reduces energy consumption while ensuring positioning accuracy for the given scenario.
Data Source
AI summary
A method, apparatus and computer readable medium for improving utilization of a wireless network. The utilization of the wireless network is improved by: transmitting a set of positioning reference signal (PRS) configurations to a terminal; and indicating a usage of the set of PRS configurations to the terminal.