RMSI Detection Window Alignment for Accurate NR System Information
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Solution Overview
Problem
Existing technologies do not provide a clear method for detecting Remaining Minimum System Information (RMSI) based on a small window in New Radio (NR) communication systems.
Innovation Solution
A method for determining the time index and duration of an RMSI detection window using offset information, allowing a terminal device to accurately locate and receive RMSI by aligning with a reference location within an RMSI detection period, and a network device to send RMSI accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If RMSI transmission is configured based on a small window, then the detection complexity and time consumption are reduced, but the method for detecting RMSI based on a small window is not provided in the prior art
Solution Approach 1:
The RMSI detection process is segmented into discrete detection windows within an RMSI detection period. Each detection window represents a specific time interval where RMSI can be detected, allowing the terminal to systematically search through time segments rather than continuously monitoring, thus reducing detection time while providing a clear operational method
Solution Approach 2:
The locations of RMSI detection windows are pre-determined based on offset information and reference locations before actual RMSI detection. This preliminary configuration of detection window positions and durations enables the terminal to efficiently locate RMSI without trial-and-error searching, solving both the time loss and method clarity issues
2Measurement precision
If the RMSI detection window location is determined using offset information and reference locations, then the detection accuracy is improved, but the system complexity increases
Solution Approach 1:
The terminal device autonomously determines the locations of RMSI detection windows by itself using offset information and reference location relationships, without requiring complex network coordination or additional signaling. The terminal uses its own processing capabilities to calculate detection window positions based on predefined rules, improving detection accuracy while avoiding increased system complexity
Solution Approach 2:
Offset information serves as an intermediary parameter that simplifies the relationship between reference locations and actual RMSI detection window locations. Instead of directly configuring complex timing relationships, the offset acts as a mediator that the terminal can easily process to achieve accurate detection window positioning
Data Source
AI summary
A communication method and a related apparatus. The communication method includes determining, based on a starting location of a first remaining minimum system information RMSI detection window and a time index of a synchronization signal (SS)/physical broadcast channel (PBCH) block, a starting location of an RMSI detection window corresponding to a terminal device, where a value of the starting location of the RMSI detection window is one of four possible values of the starting location of the RMSI detection window, and receiving the RMSI based on the starting location of the RMSI detection window.