5G User Equipment System Information Request Mechanism
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Solution Overview
Problem
5G user equipment is limited in obtaining system information due to default return of primary cell data from base stations, which restricts service capabilities when required system information is not available.
Innovation Solution
A method where user equipment determines the necessary cell for system information, sends a request message to the base station with indication information, and receives the corresponding system information, allowing for non-primary and secondary cell group data transmission through specific radio resource control messages and time windows.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the base station returns system information of the primary cell by default, then the system information transmission process is simplified, but the user equipment cannot obtain system information of other cells which limits service capabilities
Solution Approach 1:
The patent makes the system information transmission dynamic by allowing user equipment to request information from specific cells based on service needs. The base station adapts its response by identifying the requested cell from the request message and returning system information from that specific cell rather than always defaulting to the primary cell, thus balancing operational simplicity with service versatility.
2Adaptability or versatility
If the base station transmits system information of requested cell, then the user equipment can obtain required information for diverse services, but the request-response mechanism increases signaling overhead
Solution Approach 1:
The patent extracts only the necessary system information from the requested cell and returns it specifically to the user equipment through a targeted response message. This extraction approach avoids transmitting unnecessary system information from other cells, reducing signaling overhead while still providing the required service support.
Data Source
AI summary
Embodiments of the present disclosure provide a system information reception method applied to user equipment. The method includes: determining a cell corresponding to system information to be obtained; transmitting a request message to a base station for requesting the system information of the cell, where the request message includes indication information of the cell; and receiving the system information of the cell transmitted by the base station.