WLAN-LTE Aggregation Measurement Reporting Control
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Solution Overview
Problem
Current wireless communications networks face challenges in determining when and how to send measurement reports across different radio access technologies, leading to inconsistent measurement reporting and increased signaling overhead, which degrades network performance.
Innovation Solution
A method where a wireless communications device determines which radio access network nodes to include in measurement reports based on an indication from a network node, such as an eNB, using a mobility set to differentiate between serving and neighboring WLANs, thereby standardizing measurement reporting conditions across devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If wireless communications devices send measurement reports for all detected radio access network nodes, then measurement completeness is improved, but signaling overhead increases and network performance degrades
Solution Approach 1:
The patent applies local quality by differentiating between serving WLANs and neighboring WLANs, applying different measurement reporting rules to different types of networks. Devices only report measurements for neighboring WLANs that are not in the mobility set, while serving WLANs in the mobility set are excluded from reporting. This selective approach reduces unnecessary signaling overhead while maintaining essential measurement completeness for handover decisions.
2Adaptability or versatility
If wireless communications devices use different criteria to determine serving and neighboring WLANs, then device autonomy is improved, but measurement reporting consistency deteriorates
Solution Approach 1:
The patent applies preliminary action by having the network node (eNB) pre-configure the mobility set of WLANs for each device before measurement reporting. This pre-configuration establishes clear, consistent criteria for what constitutes a serving WLAN versus a neighboring WLAN, eliminating ambiguity and ensuring all devices in the same network context use identical reporting rules. The device autonomously executes measurements based on these pre-defined criteria, maintaining both device autonomy and reporting consistency.
3Productivity
If wireless communications networks integrate multiple radio access technologies, then network capacity is improved, but measurement reporting complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the set of detected WLANs into distinct categories: serving WLANs (those in the mobility set) and neighboring WLANs (those not in the mobility set). This segmentation simplifies the measurement reporting process by applying different rules to each segment - serving WLANs are monitored but not reported, while neighboring WLANs are both monitored and reported. This clear division reduces the complexity of determining what to report in multi-RAT environments.
Data Source
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AI summary
A method performed by a wireless communications device for measurement reporting associated with a first wireless communications network to a network node operating in a second wireless communications network. The first and second wireless communications networks operate according to different RATs. The wireless communications device receives an indication of one or more radio access network nodes operating in the first wireless communications network, among which one or more radio access network nodes a mobility of the wireless communications device is restricted. The wireless communications device further determines which radio access network nodes operating in the first wireless communications network are to be used for measurement reporting to the network node, based on the indication of the one or more radio access network nodes among which the mobility of the wireless communications device is restricted in the first wireless communications network.