LTE User Equipment MBMS Counting Response Validation
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Solution Overview
Problem
In LTE communication systems, user equipment faces challenges in accurately responding to MBMS counting requests across different public land mobile networks, leading to potential errors in resource allocation and incorrect responses during inter-PLMN handovers, especially when the registered PLMN identity is not valid in the new serving cell.
Innovation Solution
A method where user equipment receives network identifier values from a primary access node, compares them with its registered network identifier, and responds only if they match, performing a tracking area update when necessary to ensure accurate responses to MBMS counting requests, thereby preventing erroneous associations and ensuring valid PLMN identity checks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If user equipment responds to MBMS counting requests from any PLMN, then counting coverage is improved, but response accuracy deteriorates due to invalid PLMN identity associations
Solution Approach 1:
The patent applies local quality by making the counting response behavior specific to the local PLMN context. The UE checks whether the PLMN identity in the counting request matches its registered PLMN identity before responding, thereby adapting the response behavior to the local network identity context rather than responding universally to all counting requests.
Solution Approach 2:
The patent implements feedback by having the UE continuously monitor and compare the PLMN identity in received counting requests against its registered PLMN identity. This feedback mechanism ensures that the UE only responds when the PLMN identities match, preventing erroneous responses during inter-PLMN handovers while maintaining accurate counting coverage within the registered PLMN.
2Measurement precision
If user equipment performs PLMN identity verification before responding, then response accuracy is improved, but processing time increases due to additional verification steps
Solution Approach 1:
The patent applies preliminary action by having the UE perform PLMN identity verification before responding to counting requests. The UE checks whether the PLMN identity in the received counting request matches its registered PLMN identity as a preliminary step, ensuring that only valid counting requests receive responses. This preliminary verification prevents erroneous responses while maintaining efficient processing by avoiding unnecessary response generation.
3Duration of action of stationary object
If user equipment responds to counting requests during inter-PLMN handover, then service continuity is improved, but resource allocation accuracy deteriorates due to invalid PLMN associations
Solution Approach 1:
The patent applies local quality by making the counting response behavior specific to the local PLMN context. During inter-PLMN handover, the UE checks whether the PLMN identity in the counting request matches its currently registered PLMN identity. This ensures that resource allocation and counting responses are accurate for the current serving PLMN while preventing erroneous associations with previous or foreign PLMNs, thereby maintaining both service continuity and resource allocation accuracy.
Data Source
AI summary
A method comprising: receiving a first message at a user equipment from a first apparatus; receiving from a primary access node at least one network identifier value; comparing a user equipment registered network identifier value to the at least one network identifier value from the primary access node; and responding to the first message dependent on the user equipment registered network identifier value being equal to any primary access node network identifier value.