Radio Base Station Capability Filtering for Storage Limits
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Solution Overview
Problem
The increasing size of UE-EUTRA-Capability in LTE systems poses storage limitations in radio base stations and mobility management nodes, leading to issues during handover and call procedures, where the capability information exceeds storage capacity.
Innovation Solution
A mobile communication method where the radio base station acquires capability information from the mobile station, deletes unnecessary capabilities if the size exceeds storage limits, and notifies the mobility management node of the deleted or remaining capabilities, allowing for efficient communication control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the radio base station stores complete UE-EUTRA-Capability information, then communication control accuracy is improved, but storage capacity is exceeded
Solution Approach 1:
The patent extracts only the necessary capability information from the complete UE-EUTRA-Capability set. The base station identifies and retains only those capability parameters that are currently needed for communication control, discarding unnecessary ones. This extraction approach maintains communication control accuracy while reducing storage requirements.
Solution Approach 2:
The patent applies local quality by making the stored capability information context-specific rather than universally complete. The base station stores capability information tailored to the specific communication scenario and user requirements, rather than storing all possible capability parameters. This localized approach reduces storage while maintaining control accuracy for relevant operations.
2Reliability
If capability information is transmitted frequently, then communication control is maintained, but transmission overhead increases
Solution Approach 1:
The patent implements periodic action by transmitting capability information only at specific intervals or under specific conditions rather than continuously. The base station updates capability information periodically or when changes occur, reducing transmission frequency while maintaining adequate communication control. This approach balances control reliability with reduced transmission overhead.
Solution Approach 2:
The patent uses feedback mechanisms to determine when capability information transmission is necessary. The base station monitors communication status and user behavior, and only transmits updated capability information when feedback indicates a need for renewal. This feedback-driven approach maintains communication control while minimizing unnecessary transmissions and reducing overhead.
Data Source
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AI summary
Object is to perform appropriate communication control even if a size of "UE-EUTRA-Capability" is increased. A mobile communication method according to the present invention includes a mobile station (UE) notifying a radio base station (eNB) of "UE-EUTRA-Capability", the radio base station (eNB) deleting, when a size of the "UE-EUTRA-Capability" exceeds a size that can be stored in the radio base station (eNB) or a mobility management node (MME), a predetermined capability from the "UE-EUTRA-Capability", and the radio base station (eNB) notifying the mobility management node (MME) of a capability deleted from the "UE-EUTRA-Capability" or a remaining capability that is not deleted from the "UE-EUTRA-Capability".