Staggered resource sets of tracking reference signals for channel status information for the use of positioning
Patent Information
- Application Number
- DE602019063754
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2019-11-11
- Filing Date
- 2019-11-12
- Publication Date
- 2024-12-18
- Estimated Expiration
- 2039-11-12
AI Technical Summary
Current 5G wireless communication systems face challenges in accurately determining the position of user equipment (UE) due to aliasing effects when using comb-4 patterns for channel state information reference signals (CSI-RS), which can lead to incorrect time-of-arrival measurements and affect positioning accuracy.
The proposed solution involves configuring multiple CSI-RS resource sets with staggered subcarrier offsets and spacings to combine individual detection results, reducing aliasing effects and improving positioning-related quantity determination, such as time-of-arrival, time difference-of-arrival, and received signal time difference, by correlating reference signals transmitted from the same antenna port or quasi-co-located signals.
This approach enhances the accuracy of position estimation by effectively removing aliasing effects and improving the precision of positioning-related measurements, leading to more reliable UE location determination.