Network-Side SLA Mapping for Rapid Bit Rate Scaling
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Solution Overview
Problem
Existing networks lack an effective solution to quickly fill the pipeline and implement traffic stimulation to improve resource utilization.
Innovation Solution
A communication method involving a data analysis network element that obtains a mapping relationship between bit rates and service level agreement (SLA) information, determining target SLA information for a higher bit rate, and sends this information to a network element to adjust policies, thereby increasing the bit rate of a service.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adaptive bit rate streaming technology is used to adjust video stream quality based on real-time network conditions, then video playback quality and reliability are improved, but the complexity of the player client increases due to the need for multiple encoders and continuous monitoring
Solution Approach 1:
The patent extracts the bit rate determination logic from the player client and relocates it to the network side (PCC/PCRF). The network element now performs the complex analysis of network conditions and automatically selects the appropriate bit rate, eliminating the need for multiple encoders and continuous monitoring in the player client.
Solution Approach 2:
The patent implements a feedback mechanism where the player client reports actual playback quality and network conditions to the network element, which then adjusts the bit rate accordingly. This closed-loop feedback system allows the network to dynamically optimize video quality without increasing client-side complexity.
2Productivity
If the player client continuously monitors network conditions and switches between video streams with different bit rates, then resource utilization is improved, but the latency and processing time increase due to continuous monitoring and switching operations
Solution Approach 1:
The patent applies preliminary action by having the network element pre-configure multiple bit rate streams and prepare the bit rate switching logic in advance. When quality adjustment is needed, the network can quickly switch between pre-prepared streams without requiring the player client to perform complex real-time analysis and switching operations.
3Adaptability or versatility
If multiple video streams with different bit rates are prepared and switched between based on network conditions, then service adaptability is improved, but the device complexity and memory requirements increase
Solution Approach 1:
The patent extracts the stream management functionality from the player client to the network element. The network side now handles the complexity of preparing, managing, and switching between multiple bit rate streams, while the player client only needs to receive and play the selected stream, significantly reducing memory requirements on the client side.
Data Source
AI summary
A communication method and a communication apparatus. A data analysis network element may obtain a correspondence between a plurality of bit rates and a plurality of pieces of service level agreement SLA information; determine, based on a target bit rate of a first service, target SLA information corresponding to the first service; and send the target SLA information to a first network element. The first network element determines a policy for increasing a current bit rate of the first service to the target bit rate. The bit rate of the first service can be quickly increased, thereby improving resource utilization.