LTE UE Radio Resource Configuration Update Integrity
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Solution Overview
Problem
In LTE mobile communication systems, when a UE in connected mode receives updated system information, it may mistakenly overwrite dedicated radio resource configurations with common radio resource configurations, leading to issues with wireless connections.
Innovation Solution
A mobile communication device configured in connected mode receives broadcast system information and determines whether common radio resources include dedicated radio resources, applying only the configurations of common radio resources that do not overlap with dedicated resources to prevent overwriting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a UE in connected mode receives updated system information and applies common radio resource configurations, then the system information is kept up-to-date, but the dedicated radio resource configurations may be mistakenly overwritten
Solution Approach 1:
The patent segments the radio resource configurations into two distinct categories: common radio resources (CRBs) and dedicated radio resources (DRBs). This segmentation is achieved by identifying resource blocks and comparing their allocation patterns - CRBs follow a systematic allocation pattern while DRBs have dedicated assignments. By separating these configurations, the UE can selectively apply updates only to CRBs while preserving DRB configurations, thus maintaining reliability while enabling system information updates.
Solution Approach 2:
The patent introduces an intermediary mechanism in the form of a configuration management module that acts as a mediator between the received system information and the existing radio resource configurations. This intermediary compares the incoming common radio resource configurations with existing dedicated configurations, identifies overlaps, and selectively applies only non-conflicting updates. This mediator prevents direct overwriting while still allowing necessary system information updates to proceed.
2Reliability
If the UE applies all received system information configurations, then the system information remains current, but connection errors may occur due to overwriting dedicated resources
Solution Approach 1:
The patent implements a feedback mechanism where the UE continuously monitors the status of radio resource configurations and compares received system information with existing configurations. When an update is received, the system provides feedback by identifying which configurations are common vs. dedicated, and selectively applies updates only where appropriate. This feedback loop ensures that dedicated configurations are preserved while common configurations remain current, maintaining both connection stability and information currency.
Solution Approach 2:
Before applying system information updates, the patent performs preliminary actions by pre-identifying and protecting dedicated radio resource configurations. The system预先 marks DRBs as protected configurations and establishes exclusion rules that prevent overwriting. This preliminary protection mechanism ensures that when system information updates arrive, the UE can immediately apply safe updates without risking connection stability, thus maintaining both reliability and information currency.
Data Source
AI summary
A mobile communication device with a wireless module and a controller module is provided. The wireless module performs wireless transceiving to and from a service network. The controller module, configured in a connected mode according to configurations of at least one dedicated radio resource, receives a broadcast system information indicating configurations of common radio resources from the service network via the wireless module, and determines whether the common radio resources comprise at least one of the dedicated radio resource. Also, the controller module applies the configurations of the common radio resources, except for the dedicated radio resource comprised in the common radio resources, in response to the common radio resources comprising at least one of the dedicated radio resource.


