Video Data Substream Mapping for Priority QoS Transmission
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Solution Overview
Problem
Existing video transmission schemes fail to provide better quality of service (QoS) for data of high importance, especially in constrained transmission resources, leading to unreliable transmission of critical video data.
Innovation Solution
The video data is split into at least two substreams based on a mapping relationship between data importance and a substream, with different bearers assigned for transmission to ensure reliable transmission of high-importance data by using different processing methods for each substream.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If video data is transmitted using a single bearer without differentiation, then the transmission system is simple, but the reliability of high-importance data cannot be ensured
Solution Approach 1:
The patent segments video data into different importance levels (high importance and low importance) and transmits them through separate bearers with different QoS parameters. This segmentation allows critical data to receive prioritized treatment while maintaining system manageability through clear classification rules based on frame types and macroblock categories.
Solution Approach 2:
The patent applies local quality by assigning different QoS characteristics to different portions of video data based on their importance. High-importance data (I-frames, P-frames with important macroblocks) receives higher reliability guarantees through dedicated bearers with appropriate QoS parameters, while low-importance data uses standard bearers, optimizing overall system performance.
2Reliability
If all video data is transmitted with the same priority, then the transmission process is simple, but the quality of service for critical data cannot be improved
Solution Approach 1:
The patent divides video data into segmented importance categories (high and low) with clear classification criteria based on frame types and macroblock characteristics. This segmentation enables differentiated QoS treatment while maintaining relatively simple classification logic that can be implemented through standard video coding knowledge.
Solution Approach 2:
The patent changes the QoS parameters of bearers based on data importance classification. High-importance data is mapped to bearers with higher reliability parameters and appropriate QoS settings, while low-importance data uses bearers with standard parameters, allowing flexible adaptation of transmission characteristics to data requirements.
3Quantity of substance
If video compression is applied to reduce data amount, then transmission bandwidth is reduced, but the ability to prioritize high-importance data is lost
Solution Approach 1:
The patent maintains segmentation capability after compression by classifying compressed video data into importance categories based on frame types (I-frame, P-frame, B-frame) and macroblock characteristics. This segmentation preserves the ability to identify and prioritize high-importance data even in compressed form, enabling differentiated QoS treatment throughout the transmission process.
Data Source
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AI summary
A video service transmission method and apparatus in the field of communications technologies are provided, where data in a video data frame can be split into at least two substreams based on a mapping relationship between data importance and a substream, and the data of the at least two substreams is mapped, based on port numbers corresponding to the at least two substreams, to bearers corresponding to the at least two substreams, for transmission. Because a network can use different processing methods for data on different bearers, reliable transmission of video data frames of high importance can be ensured with priority by using the video service transmission method and apparatus, so as to improve service experience of video users in a scenario of constrained transmission resources.