5G Multi-Connectivity QoE Measurement via Base Station Mediation
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Solution Overview
Problem
Current 5G networks lack effective mechanisms for quality of experience (QoE) measurement and resource allocation in multi-connectivity scenarios, particularly in scenarios where secondary base stations may not support QoE-related functionalities, leading to insufficient signaling and resource management for applications requiring QoE measurement and reporting.
Innovation Solution
A method is introduced where a first base station receives application layer messages with information elements associated with QoE measurement from a second base station, determines to add the second base station as a secondary node for dual connectivity, and allocates resources, transmitting configuration parameters to user equipment (UE) for QoE measurement and reporting, utilizing Xn messages and radio resource control (RRC) messages to manage QoE-related signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a first base station adds a second base station as a secondary node for dual connectivity operation, then multi-connectivity capability is improved, but the complexity of resource allocation and QoE measurement management increases
Solution Approach 1:
The patent segments the QoE measurement management into distinct components: QoE configuration parameters are separated from general radio resource configuration, and QoE measurement reports are handled through dedicated signaling mechanisms. This segmentation allows the first base station to manage QoE measurement for multiple UEs across different secondary nodes without overwhelming complexity, as each component can be independently configured and managed.
Solution Approach 2:
The patent introduces an intermediary mechanism in the form of dedicated information elements and signaling messages that facilitate QoE measurement management between base stations and UEs. These intermediaries standardize the exchange of QoE configuration parameters and measurement reports, simplifying the management complexity while enabling robust multi-connectivity operation.
2Reliability
If QoE measurement and reporting is implemented in dual connectivity scenarios, then quality of service for applications like streaming and VR/AR is improved, but signaling overhead and message processing complexity increase
Solution Approach 1:
The patent applies local quality by configuring QoE measurement parameters specifically for each secondary node and each UE based on their individual capabilities and requirements. Rather than applying uniform QoE measurement across all connections, the system tailors measurement configurations to local conditions, reducing unnecessary signaling overhead while maintaining high QoS for applications that require it.
Solution Approach 2:
The patent implements partial action by selectively enabling QoE measurement and reporting only when necessary and when supported by both the base station and UE. Not all dual connectivity connections require full QoE measurement, so the system applies QoE functionality partially based on application requirements, thereby reducing overall signaling overhead while maintaining service quality where needed.
3Adaptability or versatility
If the second base station supports limited QoE functionality, then deployment flexibility is improved, but the ability to perform comprehensive QoE measurement and resource allocation is reduced
Solution Approach 1:
The patent employs an intermediary approach where the first base station acts as a mediator that compensates for limited QoE functionality at the second base station. The first base station receives QoE configuration parameters, manages the QoE measurement process, and handles resource allocation decisions, thereby enabling comprehensive QoE measurement and resource allocation capability even when the second base station has limited local functionality.
Solution Approach 2:
The patent implements universality by designing the first base station to perform multiple functions: it manages QoE configuration for multiple UEs, coordinates resource allocation across different secondary nodes, and handles QoE measurement reporting. This multi-functional approach at the first base station ensures that limited QoE capabilities at individual secondary nodes do not compromise overall system reliability.
Data Source
AI summary
A method of multi-connectivity with quality of experience (QoE) measurement in 5G includes receiving, by a first base station (BS) from a. second BS, at least one application layer message comprising at least one information element (IE) associated with QoE measurement, determining, by the first BS and based on the at least one IE, to add the second BS as a secondary BS to allocate resources of the second BS for dual connectivity operation of a user equipment (UE), transmitting, by the first BS to the second BS, an addition request message indicating a request for radio resources of the second BS, receiving, by the first BS from the second BS, an addition request acknowledge message and transmitting, by the first BS to the UE, a reconfiguration message comprising configuration parameters of one or more cells of the second BS.