GNSS Positioning Integrity Signaling for 5G Wireless Systems
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G and beyond, face challenges in efficiently transmitting positioning integrity information, leading to redundant and frequent signal transmissions that increase overhead and complexity, especially in scenarios requiring low latency and high reliability like URLLC and mMTC.
Innovation Solution
The method involves a positioning integrity calculating entity and a decision entity that utilize a reduced transmission approach by determining a protection level (PL) value based on key performance indicators (KPIs) and only transmitting essential values, employing one-shot, periodic, or event-triggered modes to minimize redundant data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If positioning integrity information is transmitted frequently to ensure reliability, then positioning reliability is improved, but signal overhead and system complexity increase
Solution Approach 1:
The patent implements periodic transmission of positioning integrity information based on configured intervals rather than continuous transmission. The location server transmits positioning integrity data at predetermined periodic intervals, reducing the frequency of transmissions while maintaining reliability requirements. This periodic action eliminates redundant transmissions and reduces signal overhead compared to continuous or frequent transmission approaches.
Solution Approach 2:
The patent employs parameter changes by dynamically adjusting transmission parameters such as transmission interval, protection level thresholds, and reporting conditions based on current positioning requirements and network conditions. The system modifies these parameters to optimize the balance between reliability and overhead reduction, transmitting only when necessary and at appropriate intervals rather than using fixed frequent transmission schedules.
2Measurement precision
If positioning integrity information is transmitted continuously to maintain accuracy, then positioning accuracy is improved, but time consumption and latency increase
Solution Approach 1:
The patent uses periodic transmission at configured intervals rather than continuous transmission to maintain positioning accuracy. The location server transmits positioning integrity information at predetermined periodic intervals, which is sufficient to maintain accuracy requirements while significantly reducing time consumption compared to continuous transmission. This periodic approach eliminates unnecessary transmissions that would consume time without providing additional accuracy benefits.
Solution Approach 2:
The patent implements feedback mechanisms where the location server receives positioning information from the UE and adjusts transmission timing based on feedback conditions. The system transmits positioning integrity data in response to specific feedback triggers such as changes in positioning quality, movement detection, or threshold violations, rather than continuously transmitting regardless of actual positioning needs. This feedback-driven approach reduces time consumption while maintaining accuracy.
3Loss of information
If all positioning integrity data is transmitted to ensure completeness, then information completeness is improved, but data volume and processing complexity increase
Solution Approach 1:
The patent extracts and transmits only the essential positioning integrity information rather than all available data. The location server selectively transmits positioning integrity data based on configured parameters such as protection levels, transmission intervals, and relevance to current positioning operations. This extraction approach ensures that only necessary information is transmitted, reducing data volume and processing complexity while maintaining information completeness for positioning purposes.
Solution Approach 2:
The patent applies local quality by transmitting positioning integrity information with varying levels of detail based on local requirements. The system adjusts the quantity and type of transmitted data according to specific positioning scenarios, UE capabilities, and network conditions. Rather than uniformly transmitting all positioning data, the system tailors the information transmission to local needs, reducing overall data volume and processing complexity while ensuring completeness where required.
Data Source
AI summary
The disclosure relates to a fifth generation (5G) or sixth generation (6G) communication system for supporting higher data rates. A method performed by a user equipment (UE) in a wireless communication system is provided. The method may include: transmitting, to a location server, capability information of the UE related to global navigation satellite system (GNSS) positioning integrity (PI); receiving information about one or more key performance indicators (KPIs) from the location server; and transmitting, to the location server, resultant information about the GNSS PI, based on the one or more KPIs.