Measurement Configuration File Transfer in Wireless Networks
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Solution Overview
Problem
In wireless communication networks, the existing solutions for transferring Quality of Experience (QoE) measurement configuration files are inefficient, as large files are repeatedly sent to user equipment (UE) when it transitions between idle and connected modes, wasting resources and consuming unnecessary bandwidth, especially since these files often remain unchanged.
Innovation Solution
A combined control-plane/user-plane solution where the measurement configuration file is stored on an Application Measurements Server (AMS) and only the address is sent to the UE, allowing it to fetch the file over the user plane when needed, reducing redundant transmissions and conserving resources by comparing the address and delaying fetches until a streaming session starts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the measurement configuration file is sent to the UE every time it transitions from idle to connected mode, then the UE can perform measurements, but network resources are wasted due to redundant transmissions of unchanged files
Solution Approach 1:
The patent extracts the measurement configuration file from the control plane signaling path and stores it separately on the UE. Only a reference or pointer to the file is transmitted through control plane messages, while the actual file content is retrieved from a pre-configured location, eliminating redundant transmissions.
Solution Approach 2:
The measurement configuration file is downloaded and stored on the UE in advance, before it is actually needed for measurements. This preliminary action ensures the file is already available on the UE when the UE transitions to connected mode, eliminating the need for repeated transmissions.
2Reliability
If the measurement configuration file is transmitted over the control plane, then it can be delivered reliably, but large files consume excessive signaling resources and bandwidth
Solution Approach 1:
The patent segments the measurement configuration delivery process into two parts: (1) control plane transmission of a small reference/pointer to the configuration file, and (2) user plane retrieval of the actual large configuration file from a server using the received reference. This segmentation allows reliable control plane signaling while avoiding excessive control plane data transmission.
Solution Approach 2:
The patent introduces a server as an intermediary that stores the measurement configuration files. The control plane only needs to communicate with this intermediary to obtain a reference, and the actual file transfer occurs between the intermediary and the UE, reducing control plane signaling volume.
3Quantity of substance
If the configuration file is cleared when UE enters idle mode, then memory is freed, but the file must be resent upon reconnection even if unchanged
Solution Approach 1:
The measurement configuration file is downloaded and stored on the UE in advance, before it is actually needed for measurements. This preliminary action ensures the file is already available on the UE when the UE transitions to connected mode, eliminating the need for repeated transmissions.
Solution Approach 2:
The patent creates a local copy of the measurement configuration file on the UE's storage. This copy persists across idle mode transitions, allowing the UE to reuse the configuration without requiring retransmission from the network, while still allowing the network to update the file on the server when changes are made.
Data Source
AI summary
Methods and related user equipment are described in which the UE receives a measurement configuration message via a radio network node, the measurement configuration message comprising location information associated with a measurement configuration file, and in which the UE retrieves the measurement configuration file from a server using the received location information.