NR Carrier Phase Positioning with Phase Error Group Compensation
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Solution Overview
Problem
The impact of phase delays in different transmit/receive transmission channels of a base station/user equipment on 5G New Radio Carrier Phase Positioning (NR CPP) is not adequately addressed, hindering accurate positioning calculations.
Innovation Solution
A method and apparatus that involve obtaining phase measurements and differences in phase delays through phase error groups (PEGs) to correct and adjust phase measurements, using reception devices and core network nodes to enhance positioning accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If phase measurements are obtained from multiple transmit/receive channels for positioning, then positioning accuracy can be improved, but phase delay differences between different channels introduce measurement errors
Solution Approach 1:
The patent introduces phase error groups (PEGs) as intermediary entities that model and compensate for phase delay differences between different transmit/receive channels. Each PEG contains phase error parameters that act as mediators to correct the raw phase measurements, enabling accurate positioning while accounting for channel-specific phase delays
Solution Approach 2:
The patent changes the parameter representation by introducing phase error parameters associated with different PEGs. Instead of directly using raw phase measurements from multiple channels, the system transforms the measurements by applying parameter-based corrections (phase error parameters) that reflect the actual channel conditions, thereby improving measurement reliability
2Measurement precision
If phase error groups and phase error parameters are introduced to correct phase delays, then positioning accuracy is improved, but system complexity increases
Solution Approach 1:
The patent segments the phase error compensation process into distinct phase error groups (PEGs), where each PEG handles specific transmit/receive channel combinations. This segmentation allows the complex problem of multi-channel phase error compensation to be divided into manageable, independent units that can be processed separately and then combined
Solution Approach 2:
The patent performs preliminary action by pre-defining phase error groups and their associated phase error parameters before actual positioning measurements are taken. This preliminary setup organizes the compensation framework in advance, reducing the computational complexity during real-time positioning operations
Data Source
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AI summary
Provided in the present disclosure are an information transmission method and apparatus, a reception device, a core network node, and a transmission device. The method is executed by a reception device, and comprises: measuring a positioning reference signal from a transmission device according to a first phase error group (PEG) corresponding to the reception device, so as to acquire first information; and sending the first information to a core network node, wherein the first information comprises a phase measurement and/or a difference between phase delays.