Video Data Transmission Selective Compression for Wireless Systems
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Solution Overview
Problem
Compression of video data in wireless communication systems can lead to increased data size, causing memory overflow and bus collisions, and degrading radio resource efficiency, contrary to the purpose of compression.
Innovation Solution
A method and apparatus for selectively compressing video data based on packet size, using a control unit to determine whether to compress data and processing received data as either raw or compressed, with a modulation and coding scheme (MCS) level selection based on data size, and indicating whether data is compressed or raw in packet headers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If video data is compressed in wireless communication systems, then data size is reduced for transmission efficiency, but data size may increase due to compression overhead causing memory overflow and bus collisions
Solution Approach 1:
The patent implements dynamic selection between compressed and raw data formats based on real-time conditions. The transmitting node determines whether to compress video data by evaluating current system state, and the receiving node dynamically processes data based on the received format indication in packet headers. This dynamic adaptation resolves the contradiction by allowing the system to switch between compression modes to avoid memory overflow while maintaining transmission efficiency.
Solution Approach 2:
The patent changes the parameter of data format (compressed vs. raw) based on transmission requirements. By modifying the compression state parameter and indicating it through packet headers, the system can adapt data size to avoid overwhelming memory buffers and prevent bus collisions, while still achieving overall transmission efficiency improvement.
2Productivity
If compression is applied to video data, then transmission bandwidth efficiency is improved, but radio resource efficiency degrades due to increased packet size
Solution Approach 1:
The patent dynamically adjusts the compression application based on video data characteristics and transmission conditions. By selectively compressing only when beneficial and indicating the format to the receiver, the system optimizes the trade-off between bandwidth efficiency and radio resource consumption, avoiding unnecessary compression overhead that would waste radio resources.
Solution Approach 2:
The patent modifies the compression parameter (applied vs. not applied) based on real-time assessment of video content and channel conditions. This parameter change allows the system to achieve bandwidth efficiency improvement only when compression is actually beneficial, preventing radio resource degradation from unnecessary compression operations.
3Quantity of substance
If raw data is transmitted without compression, then data size increases requiring more bandwidth, but transmission reliability is maintained
Solution Approach 1:
The patent implements dynamic format selection where the transmitting node decides whether to send compressed or raw data based on current video characteristics and channel conditions. The receiving node uses format indications in packet headers to appropriately process the data. This dynamic approach allows the system to use raw data transmission when compression would be inefficient, thereby reducing unnecessary bandwidth consumption while maintaining transmission reliability.
Data Source
AI summary
Video data transmission in a communication system is provided. A method for operating a transmitting node includes generating a packet comprising data selected from compressed data and raw data based on a data size, and transmitting the packet.