Mobile Rate Control for Video Streaming
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current mobile wireless devices and networks lack the ability to dynamically adjust video streaming quality in response to changes in radio transport channel capacity, leading to suboptimal video playback experiences due to reduced frame rates and buffer overflow issues.
Innovation Solution
Implementing a method for mobile wireless devices to request and adjust radio transport channel capacity on-demand, using performance monitoring and radio resource management to increase encoding rates when channel conditions improve, thereby maintaining or enhancing video quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the video encoding rate is increased to improve video quality, then the video bit rate increases, but the transmission capacity of the radio transport channel is exceeded causing buffer overflow and video loss
Solution Approach 1:
The patent implements dynamic adjustment of the video encoding rate based on real-time radio transport channel capacity measurements. The system continuously monitors channel conditions and adjusts the encoding rate accordingly, allowing the system to adapt between high quality (when channel capacity is high) and reliable transmission (when channel capacity is low), thereby resolving the contradiction between video quality and buffer overflow prevention
Solution Approach 2:
The patent employs a feedback mechanism where the video player monitors buffer status and radio transport channel capacity, then sends control signals back to the video encoder. This closed-loop feedback system enables the encoder to adjust its output rate based on actual channel conditions, preventing buffer overflow while maintaining high video quality when possible
2Reliability
If the video encoding rate is decreased to prevent buffer overflow, then the transmission reliability improves, but the video playback frame rate decreases making video viewing experience poor
Solution Approach 1:
The system dynamically adjusts the encoding rate based on real-time channel capacity measurements, allowing it to operate at high rates when channel conditions permit (ensuring good playback quality) and reduce rates only when necessary to prevent buffer overflow (maintaining transmission reliability), thus resolving the contradiction between transmission stability and playback quality
Solution Approach 2:
The patent changes the encoding rate parameter dynamically based on measured radio transport channel capacity. By continuously monitoring channel conditions and adjusting the encoding rate parameter accordingly, the system can maintain high video quality when channel capacity is high and prevent buffer overflow when channel capacity is low, resolving the contradiction between reliability and productivity
3Manufacturing precision
If the radio transport channel capacity is increased to support higher encoding rates, then the video quality improves, but the channel capacity is a limited resource that may be exhausted
Solution Approach 1:
The patent implements dynamic adaptation of the encoding rate to the available radio transport channel capacity. The system continuously measures channel capacity and adjusts the encoding rate accordingly, allowing the system to maximize video quality when channel capacity is available while avoiding exhaustion of the limited channel resource, thus resolving the contradiction between video quality and channel capacity utilization
Solution Approach 2:
The system performs self-adjustment by automatically monitoring its own buffer status and channel conditions, then autonomously adjusting the encoding rate without external intervention. This self-service mechanism enables the system to optimize video quality while respecting the limited channel capacity, resolving the contradiction between quality and adaptability
Data Source
AI summary
A system for a mobile wireless communications device configured to stream video to a peer device over a mobile wireless network, the device configured to increase the radio channel capacity between the wireless communication devices and the network to allow faster video encoding and transmission. The video transmitting device receives measurements on radio conditions related to the radio channels carrying the video and determines if the radio conditions can support an increased channel capacity. If so, the transmitting device sends a request to the network to increase capacity on the radio channels. If the network determines that the other resources transporting the video can support an increase in traffic resulting from an increase in the radio channel capacity, then the network sends orders to carry out a radio channel capacity increase.