Access Network Feedback for Timely Congestion Status Reporting
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Solution Overview
Problem
When network congestion occurs, the application function (AF) network element fails to receive timely updates about the resolution of congestion, leading to suboptimal rate adjustments and degraded user experience.
Innovation Solution
Implementing methods and apparatuses in access network devices to promptly notify the AF of network status changes, including congestion information, to facilitate timely adjustments in transmission policies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the AF adjusts rate based on congestion status, then network congestion is relieved, but user experience is degraded when switching occurs and target base station is no longer congested
Solution Approach 1:
The patent implements a feedback mechanism where the access network device actively notifies the AF of congestion status changes. When switching occurs and the target base station is no longer congested, the access network device sends notification information to the AF, enabling the AF to adjust the rate accordingly. This feedback loop resolves the contradiction by ensuring the AF has real-time information about congestion status to make appropriate rate adjustments.
Solution Approach 2:
The patent applies preliminary action by having the access network device proactively notify the AF before the AF makes incorrect rate adjustments. The notification is sent at the moment of switching occurrence, allowing the AF to prepare for rate adjustment in advance rather than reacting after degradation has already occurred.
2Loss of time
If the AF cannot be notified in time of network status changes, then rate adjustment is delayed, but user experience is degraded
Solution Approach 1:
The access network device establishes a feedback mechanism that actively notifies the AF of network status changes. The notification is triggered at the moment of switching occurrence, providing real-time feedback about congestion status changes. This ensures the AF receives timely information to adjust rates promptly, eliminating delays in rate adjustment.
3Loss of information
If network status information is not reported timely, then the AF continues using outdated rate adjustment policies, but user experience deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the access network device actively notifies the AF of network status changes. When switching occurs and the target base station is no longer congested, the access network device sends notification information to the AF, enabling the AF to adjust the rate accordingly. This feedback loop resolves the contradiction by ensuring the AF has real-time information about congestion status to make appropriate rate adjustments.
Solution Approach 2:
The patent applies preliminary action by having the access network device proactively notify the AF before the AF makes incorrect rate adjustments. The notification is sent at the moment of switching occurrence, allowing the AF to prepare for rate adjustment in advance rather than reacting after degradation has already occurred.
Data Source
AI summary
This application discloses a communication method, apparatus, and system, and a storage medium. If a first access network device determines that switching occurs, the first access network device sends network status information. This improves timeliness of reporting the network status information.