SIB1 Scheduling List Modification for Wireless System Information Updates
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently updating system information blocks (SIBs) at user equipment (UE), leading to reduced efficiency and accuracy of information transmission, especially when channel conditions deteriorate.
Innovation Solution
A method where a base station transmits a change message to a UE indicating changes in system information, modifies the scheduling information list in SIB1 to prioritize changed SIBs, and transmits the updated SIBs based on the modified list, ensuring that changed SIBs are transmitted before unchanged ones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If system information blocks are transmitted in a fixed order, then the transmission process is simple and stable, but the probability of correct reception decreases when channel conditions deteriorate
Solution Approach 1:
The patent implements dynamic scheduling of SIB transmission by modifying the scheduling information list in SIB1 to reflect current channel conditions. When channel quality deteriorates, the base station adjusts the transmission order of SIBs to prioritize critical updated information, transforming the static transmission schedule into an adaptive dynamic system that responds to real-time channel state changes.
Solution Approach 2:
The patent changes the transmission parameters of SIBs by modifying the scheduling information list, specifically altering the transmission order and timing of different SIBs. This parameter adjustment allows critical SIBs to be transmitted during periods of better channel quality, thereby improving reception reliability without requiring a complete redesign of the transmission framework.
2Productivity
If changed SIBs are transmitted later in the sequence, then the transmission schedule is easier to manage, but the efficiency of information transmission decreases
Solution Approach 1:
The patent applies preliminary action by proactively modifying the scheduling information list in SIB1 before transmitting updated SIBs. The base station identifies which SIBs need updating and pre-arranges their transmission order in the scheduling list, ensuring that critical updated information is transmitted first. This preliminary configuration optimizes transmission efficiency before the actual data transfer begins.
Solution Approach 2:
The patent implements feedback mechanisms where the base station monitors channel conditions and SIB update requirements, then adjusts the scheduling information list accordingly. This feedback loop ensures that the transmission schedule continuously adapts to current network conditions, prioritizing updated SIBs when they are most likely to be successfully received, thereby improving overall transmission efficiency.
3Measurement precision
If all SIBs are transmitted with equal priority, then the transmission process is simpler, but the accuracy of information transmission decreases under deteriorating channel conditions
Solution Approach 1:
The patent applies local quality by assigning different priorities to different SIBs based on their specific characteristics and importance. Instead of treating all SIBs uniformly, the scheduling information list in SIB1 contains differentiated priority indicators for each SIB, allowing critical updated information to be transmitted with higher priority during deteriorating channel conditions, thereby improving transmission accuracy for the most important data.
Data Source
AI summary
A method, a base station, and a user equipment (UE) for wireless communication are disclosed. The method includes communicating a change message between a base station and a UE indicating that system information is to be changed, the system information including a plurality of system information blocks (SIBs); modifying a scheduling information list included in a system information block type1 (SIB1) of the plurality of SIBs; communicating the SIB1 to the UE; and communicating other SIBs other than the SIB1 among the plurality of SIBs to the UE based on a transmission order of the other SIBs determined by the modified scheduling information list. In some embodiments, the change message may indicate that at least one SIB of the other SIBs is changed.