Radio Base Station MDT Subscriber Approval Check
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Solution Overview
Problem
In LTE systems, MDT measurements cannot be initiated without subscriber approval, and existing systems lack the capability to determine if a target mobile station UE is approved for performing these measurements.
Innovation Solution
A mobile communication method and radio base station configuration where the radio base station receives an approval check request from an operation and maintenance server, which then queries a mobility management node or subscriber management server to verify if the target mobile station UE is approved for MDT measurements, ensuring that measurements are only initiated after approval is confirmed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If MDT measurement process is initiated without subscriber approval check, then measurement execution is simplified and faster, but subscriber privacy is violated and operational integrity is compromised
Solution Approach 1:
The patent implements preliminary action by performing subscriber approval checks before initiating the MDT measurement process. The radio base station queries the mobility management node or subscriber management server to verify subscriber permission status in advance, ensuring that measurements are only started when the subscriber is approved. This preliminary verification mechanism resolves the contradiction by establishing permission compliance before measurement execution, thereby maintaining both operational integrity and measurement productivity.
2Reliability
If approval check mechanism is added to verify subscriber permission, then operational integrity is improved, but system complexity increases
Solution Approach 1:
The patent applies the intermediary principle by introducing a query mechanism that involves the mobility management node or subscriber management server as intermediaries between the radio base station and the subscriber approval information. Instead of storing approval information locally in the radio base station, the system queries these intermediary nodes to obtain permission status. This approach improves operational integrity through centralized permission management while minimizing the complexity increase in the radio base station by leveraging existing network infrastructure.
3Adaptability or versatility
If MDT is configured for all UEs without selection criteria, then measurement coverage is maximized, but unnecessary measurements increase resource consumption
Solution Approach 1:
The patent implements local quality by applying different treatment to different UEs based on their individual approval status and characteristics. Instead of uniformly configuring MDT for all UEs, the system selectively activates MDT only for approved subscribers who meet the criteria. This selective approach maximizes measurement coverage for relevant UEs while avoiding unnecessary energy consumption from measurements initiated for unauthorized or unsuitable subscribers, thereby resolving the contradiction between measurement coverage and energy efficiency.
Data Source
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AI summary
A mobile communication method according to the present invention includes: a step of transmitting, by an operation and maintenance server EM, "MDT config" to a radio base station eNB; a step of selecting, by the radio base station eNB, a target mobile station UE on the basis of the "MDT config"; a step of inquiring, by the radio base station eNB, of a mobility management node MME or a subscriber management node HSS about whether the target mobile station UE is approved for performing an MDT measurement process; and a step of instructing, by the radio base station eNB, the target mobile station UE to perform the MDT measurement process when the target mobile station UE is approved for performing the MDT measurement process.