Dual-Connectivity SRB Release for Measurement Configuration Cleanup

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Solution Overview

Problem

Existing wireless communication systems face challenges in handling measurement configurations and signaling radio bearers (SRBs) when a communication device disconnects from a secondary node (SN) in dual connectivity scenarios.

Innovation Solution

A communication device and network method that involves establishing and managing measurement configurations and SRBs by configuring and releasing them appropriately in response to RRC messages, ensuring seamless dual connectivity by maintaining or releasing SRBs and measurement configurations based on connection status.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If measurement configuration and SRB are maintained after SN disconnection, then measurement continuity is preserved, but system complexity and power consumption increase

Engineering Contradiction:

Improvemeasurement continuityVSAvoidconfiguration management complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by detecting SN disconnection status and proactively releasing associated measurement configurations and SRBs before they cause interference or consume unnecessary power. The system preemptively cleans up configurations based on connection status changes, preventing the accumulation of invalid configurations that would increase device complexity.

Inventive Principle:

Principle #10Preliminary action

2Loss of energy

If measurement configuration and SRB are released after SN disconnection, then power consumption and interference are reduced, but measurement data loss occurs

Engineering Contradiction:

Improvepower consumptionVSAvoidmeasurement data

Core Design Contradiction:

Loss of energyVSLoss of information

Solution Approach 1:

The patent implements feedback mechanisms where the system continuously monitors SN connection status and provides feedback signals to trigger appropriate actions. When disconnection is detected, feedback triggers the release of measurement configurations and SRBs. This closed-loop approach ensures configurations are maintained only when needed and released when the SN is disconnected, optimizing power consumption while preserving measurement data during active connections.

Inventive Principle:

Principle #23Feedback

Data Source

PatentEP3410816B1Device, network and methods for handling measurement configuration and signaling radio bearer

Publication Date: 2026.03.25 HTC CORP

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AI summary

A communication device for handling a measurement configuration in a SRB comprises at least one storage device for storing instructions and at least one processing circuit coupled to the at least one storage device. The at least one processing circuit is configured to execute the instructions stored in the at least one storage device. The instructions comprise establishing a first SRB; receiving a first measurement configuration from the first BS; transmitting a first measurement report to the first BS; receiving a first RRC message from the first BS; establishing a second SRB; receiving a second measurement configuration from the second BS; transmitting a second measurement report to the second BS; receiving a second RRC message from the first BS; and releasing the second measurement configuration and the second SRB, in response to the second RRC message.