Joint-Coded Wireless Link for Mixed QoS Traffic Decoding
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Solution Overview
Problem
Existing wireless communication technologies face challenges in supporting multiple services with diverse quality of service (QoS) requirements over a single wireless link, particularly in 6G networks, due to varying latency and reliability needs.
Innovation Solution
Implementing joint coding of data streams with error correction codes, allowing for self-decodable blocks and flexible HARQ processes, along with mixed traffic cooperation to manage pre-emption and HARQ feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple services with diverse QoS requirements are transmitted over a single wireless link, then resource utilization is improved, but reliability deteriorates due to varying latency and reliability needs
Solution Approach 1:
The data stream is segmented into multiple code blocks, where at least one code block is self-decodable. This segmentation allows the receiving end to decode critical data independently without waiting for the entire joint coded data, thereby maintaining high reliability for time-sensitive services while still utilizing shared wireless resources efficiently.
Solution Approach 2:
Different code blocks within the joint coded data have different decoding characteristics. At least one code block is designed to be self-decodable with local quality properties, meaning it can be decoded independently with sufficient reliability for its specific service requirements, while other code blocks may rely on joint decoding for optimal performance.
2Productivity
If joint coding is applied to multiple data streams, then transmission efficiency is improved, but decoding complexity increases
Solution Approach 1:
The joint coded data is divided into multiple code blocks with different decoding dependencies. This segmentation reduces decoding complexity by allowing the receiver to attempt independent decoding of self-decodable blocks first, only proceeding to more complex joint decoding when necessary, thereby managing computational complexity while maintaining transmission efficiency.
Solution Approach 2:
The decoding process is made dynamic by allowing flexible selection between independent decoding and joint decoding based on channel conditions and service requirements. The system can adaptively choose the appropriate decoding strategy for different code blocks, optimizing the balance between complexity and performance.
3Loss of time
If self-decodable code blocks are used, then latency is reduced through independent decoding, but coding overhead increases
Solution Approach 1:
Instead of making all code blocks self-decodable (excessive action), the patent applies self-decodable structure only to at least one code block (partial action). This partial application reduces coding overhead compared to full self-decodable schemes while still achieving latency reduction for critical data that requires independent decoding.
Data Source
AI summary
Provided are a wireless communication method and related products. The method includes: receiving, by a terminal device, first data from a network device on a first resource, where the first data includes second data and third data which are jointly coded; performing, by the terminal device, decoding on the received first data to obtain the first data.