Differentiated Data Transmission for Video Frame Prioritization
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Solution Overview
Problem
Current data transmission methods in video coding standards fail to distinguish between different frame types, leading to severe impact on video decoding quality when network congestion occurs, as all frames use the same configuration parameters, resulting in invalid transmission and poor video quality.
Innovation Solution
Implementing a data transmission method that differentiates between I-frames, P-frames, and B-frames based on their importance, using distinct configuration parameters for each, such as HARQ parameters and discard timers, to prioritize the transmission of critical I-frames and allow for more flexible retransmission and timing settings for less critical P-frames and B-frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If all video frames use the same configuration parameter in transmission, then transmission simplicity is maintained, but transmission reliability of critical frames deteriorates
Solution Approach 1:
The patent segments video frames into different types (I-frames, P-frames, B-frames) based on their importance to video decoding. I-frames are identified as critical frames that require higher transmission reliability, while P and B frames are considered less critical. This segmentation enables differentiated transmission strategies for different frame types, resolving the contradiction between transmission simplicity and reliability.
Solution Approach 2:
The patent applies local quality by assigning different configuration parameters (such as HARQ retransmission counts, priority levels, and scheduling weights) to different frame types based on their local importance characteristics. Critical I-frames receive higher priority and more robust transmission parameters, while less critical P and B frames use standard parameters, thereby improving overall transmission reliability without excessive complexity.
2Device complexity
If uniform transmission parameters are used for all frames, then network resource allocation is simplified, but video decoding quality deteriorates under network congestion
Solution Approach 1:
The patent implements dynamic transmission parameter adjustment based on frame type and network conditions. The base station dynamically assigns different priorities, HARQ configurations, and scheduling weights to I-frames, P-frames, and B-frames. This dynamic approach allows the system to adapt to network congestion by prioritizing critical I-frames, thereby maintaining video decoding quality without requiring complex manual configuration.
Solution Approach 2:
The patent changes transmission parameters (priority level, HARQ retransmission count, scheduling weight) based on the identified frame type. I-frames are assigned higher priority and increased retransmission attempts, while P and B frames use standard parameters. This parameter differentiation ensures that critical frames maintain high decoding quality even under network congestion, while avoiding uniform complexity in resource allocation.
3Reliability
If critical I-frames are prioritized with higher retransmission attempts, then transmission reliability of I-frames improves, but network resource consumption increases
Solution Approach 1:
The patent applies partial action by providing enhanced retransmission resources only to critical I-frames that truly need them, rather than uniformly increasing resources for all frame types. P-frames and B-frames use standard or reduced retransmission attempts. This selective approach improves I-frame reliability while minimizing unnecessary network resource consumption on less critical frames.
Solution Approach 2:
The patent changes the HARQ retransmission parameter and scheduling priority specifically for I-frames, increasing them to ensure reliable delivery. For P and B frames, standard or lower parameters are used. This parameter differentiation allows the system to achieve high I-frame reliability without proportionally increasing overall network resource consumption, as the enhanced parameters are applied only where necessary.
Data Source
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Figure 2a
Figure 2b~2d
AI summary
Embodiments of the present invention relate to the field of data transmission, and provide a data transmission method, a communications device, a terminal, and a base station. In this way, different configuration parameters are configured for data packets having different importance, so that an important data packet is ensured at a high priority. The method includes: determining, by a communications device, an attribute of a data packet to be transmitted, where the attribute of the data packet is used to indicate importance of the data packet; and transmitting, by the communications device, the data packet by using a configuration parameter corresponding to the attribute of the data packet. The embodiments of the present invention are applied to a data transmission scenario.