UE SIB Configuration Selection Logic
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Solution Overview
Problem
In LTE wireless communication systems, user equipment (UE) faces challenges in determining which configuration to apply from received system information blocks (SIBs) for communication functions, as legacy and enhanced coverage SIBs are transmitted for the same function without clear guidance.
Innovation Solution
A communication device with a processing unit that receives legacy and enhanced coverage SIBs and applies the appropriate configuration based on its complexity or capabilities, switching between them as needed for the same communication function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the UE receives both legacy SIB and EC SIB with configurations for the same communication function, then the UE has multiple configuration options available, but the UE cannot determine which configuration should be applied
Solution Approach 1:
The patent uses different SIB types (legacy SIB vs. EC SIB) as distinct identifiers, analogous to different colors, to indicate different configuration sets. The UE identifies which configuration to apply by recognizing the SIB type, providing clear visual (informational) distinction between configuration options without requiring complex selection logic
Solution Approach 2:
The patent segments the system information into distinct SIB types (legacy SIB and EC SIB), each containing configurations for specific UE categories. This segmentation allows the UE to quickly identify applicable configurations by SIB type rather than searching through all received configurations, resolving the ambiguity in configuration selection
2Reliability
If the network transmits both legacy SIB and EC SIB for the same communication function, then enhanced coverage support is provided, but the UE faces complexity in handling and selecting configurations
Solution Approach 1:
The patent applies local quality by associating specific SIB types with specific UE categories (legacy SIB for normal UEs, EC SIB for coverage-enhanced UEs). Each UE type has its own dedicated configuration source, eliminating the need for complex comparison and selection logic while maintaining reliable support for both UE categories
Solution Approach 2:
The UE automatically determines which configuration to apply based on its own capabilities and the SIB type it receives, without requiring complex network signaling or additional selection procedures. The system enables self-service configuration selection where the UE independently identifies and applies the appropriate configuration based on its category
Data Source
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AI summary
A communication device for handling system information comprises a storage unit for storing instructions and a processing means coupled to the storage unit. The processing means is configured to execute the instructions stored in the storage unit. The instructions comprise receiving at least one legacy system information block (SIB) including at least one first configuration in a cell; receiving at least one enhanced coverage (EC) SIB including at least one second configuration in the cell; and applying the at least one second configuration instead of the at least one first configuration, when the communication device is a low complexity communication device or is configured to apply the at least one EC SIB instead of the at least one legacy SIB wherein the at least one first configuration and the at least one second configuration are transmitted for a same communication function.