PRS Transmission via Symbol Segmentation for Redcap Bandwidth
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Solution Overview
Problem
Reduced Capability NR devices (Redcap) face challenges in receiving Position Reference Signals (PRS) due to bandwidth limitations, which affects their ability to perform positioning measurements, and existing methods complicate the PRS transmission process by requiring differentiation between various types of user equipment (UE) based on their bandwidth capabilities.
Innovation Solution
The method involves dividing the PRS into different parts and transmitting them on separate symbols based on the bandwidth supported by the UE, allowing both Redcap and non-Redcap UEs to receive the PRS successfully, thereby simplifying the transmission process for the base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the base station sends the full bandwidth PRS, then positioning accuracy is improved, but Redcap UEs cannot receive it due to bandwidth limitations
Solution Approach 1:
The PRS is divided into multiple parts and transmitted on different symbols. Each part occupies a bandwidth that is compatible with Redcap UE capabilities, while collectively providing the full positioning measurement capability. This segmentation allows both Redcap and non-Redcap UEs to receive their respective portions successfully.
2Reliability
If the base station uses different transmission methods for different UE types, then each UE type can receive PRS optimally, but the transmission process becomes complex
Solution Approach 1:
A single PRS transmission method is designed that serves both Redcap and non-Redcap UEs universally. By dividing the PRS into parts transmitted on different symbols, the base station uses one unified approach that adapts to different UE bandwidth capabilities without requiring separate transmission procedures.
Data Source
AI summary
Embodiments of the present disclosure provide a method and an apparatus for transmitting a Position Reference Signal (PRS), and an electronic device and a storage medium. The method for receiving the position reference signal can include sending different parts of the PRS on different symbols according to a bandwidth supported by a UE of a predetermined type.