Terminal Control of Extended System Information Windows
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Solution Overview
Problem
Existing systems face challenges in scheduling extended system information, necessitating a method for terminals to correctly obtain system information in LTE and NR wireless communication systems.
Innovation Solution
A terminal equipped with a receiver to receive first system information and a controller to acquire lists for scheduling second system information, determining a window start position based on these lists, enabling the reception of extended system information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If system information is extended for functional enhancement, then the system information can include more features and capabilities, but the scheduling complexity increases and terminals may fail to obtain system information correctly
Solution Approach 1:
The system information is divided into multiple SIBs (System Information Blocks) with different types and priorities. Each SIB can be scheduled independently, allowing the terminal to acquire information in a structured manner. The scheduling is segmented into different occasions and windows based on the SIB type and system information extension status.
Solution Approach 2:
The patent introduces a new dimension for scheduling by adding a third list (pos-schedulingInfoList) alongside the existing first list (schedulingInfoList) and second list (schedulingInfoList-v15xy). This multi-list structure creates an additional organizational dimension that helps manage the complexity of extended system information scheduling without increasing the burden on individual lists.
2Adaptability or versatility
If multiple lists are used for scheduling system information, then the scheduling flexibility and coverage are improved, but the terminal processing complexity increases
Solution Approach 1:
The terminal performs preliminary actions by first acquiring the first system information (SIB1) which contains the scheduling configuration. Based on this initial information, the terminal determines whether system information is extended and then selectively acquires only the necessary additional lists (second and third lists) and corresponding SIBs. This staged approach reduces the overall processing complexity compared to acquiring all information at once.
Solution Approach 2:
The patent implements dynamic scheduling where the terminal adapts its acquisition behavior based on the system information extension status. The controller determines whether to acquire the second and third lists based on the first system information, creating a dynamic rather than static acquisition process. This allows the system to adjust the processing complexity based on actual needs.
3Reliability
If the terminal acquires all system information lists, then complete system information is obtained, but the acquisition time and resource consumption increase
Solution Approach 1:
The terminal performs partial action by acquiring only the necessary system information lists based on the extension status. When system information is not extended, the terminal acquires only the first list. When extended, it acquires the first, second, and third lists. This partial acquisition approach ensures completeness when needed while reducing time consumption when extension is not required.
Solution Approach 2:
The patent changes the acquisition parameters dynamically based on the system information extension status. The controller adjusts which lists to acquire (first list only, or first plus second and third lists) based on the determined extension state. This parameter change approach optimizes the balance between acquisition completeness and time consumption.
Data Source
AI summary
A terminal includes a receiver configured to receive first system information from a base station; and a controller configured to acquire, from the first system information, a first list, a second list, and a third list for scheduling second system information other than the first system information, and to determine a start position of a window for acquiring the second system information, based on the first list, the second list, and the third list, wherein the receiver receives the second system information from the base station in the window.