Accumulation Methods for System Information Windows in IoT
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In IoT systems, user equipment (UE) faces challenges in decoding System Information Blocks (SIBs) within SI windows due to updates in the same modification period without explicit indication, leading to over-accumulation and unsuccessful decoding of SIBs, particularly in Non-terrestrial networks (NTN).
Innovation Solution
The method involves receiving an indication from a network node to determine a set of SI windows in a modification period, using default values or mapping rules based on bit values to accurately accumulate SIBs, and transmitting this information through SIB1, RRC signaling, or paging, ensuring correct accumulation and decoding of updated SIBs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE accumulates SIBs across multiple SI windows without explicit indication, then coverage enhancement is achieved, but the UE cannot detect SIB updates in the same modification period leading to over-accumulation and decoding failure
Solution Approach 1:
The patent introduces an intermediary indication mechanism (via SIB1 or RRC signaling) that mediates between the network's SIB update actions and the UE's accumulation behavior. This intermediary provides the UE with explicit information about which SI windows contain updated SIBs, allowing the UE to adjust its accumulation strategy accordingly and avoid decoding failures while maintaining coverage enhancement benefits.
Solution Approach 2:
The patent implements a feedback mechanism where the network provides indication information to the UE about SIB update status. This feedback allows the UE to understand whether SIB parameters have been updated in the current modification period and adjust its accumulation behavior accordingly, preventing both over-accumulation and missed updates.
2Use of energy by moving object
If the UE performs SIB accumulation across all SI windows in a modification period, then coverage enhancement is achieved, but the UE cannot distinguish between updated and non-updated SIBs leading to unnecessary accumulation
Solution Approach 1:
The patent applies preliminary action by providing the UE with indication information about SIB updates before the UE performs accumulation. This allows the UE to pre-determine which SI windows need to be accumulated based on the update status, avoiding unnecessary energy consumption on windows that don't contain updated SIBs while ensuring updated SIBs are properly received.
3Productivity
If the network transmits SIB updates without explicit indication in the same modification period, then transmission efficiency is improved, but the UE cannot detect the updates leading to decoding failures
Solution Approach 1:
The patent introduces an intermediary indication mechanism (via SIB1 or RRC signaling) that mediates between the network's SIB update actions and the UE's accumulation behavior. This intermediary provides the UE with explicit information about which SI windows contain updated SIBs, allowing the UE to adjust its accumulation strategy accordingly and avoid decoding failures while maintaining coverage enhancement benefits.
Data Source
AI summary
Accumulation methods for system information (SI) windows are provided. The accumulation method for SI windows may include the following steps. The transceiver of an apparatus may receive an indication from a network node. The processor of the apparatus may determine a set of SI windows in a modification period based on the indication. The processor may perform an accumulation over the SI windows in the set of SI windows.