Two-Step Feedback for XR Data Frame Transmission Reliability
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Solution Overview
Problem
Extended reality (XR) technologies face reliability issues due to fluctuations in wireless communication channels, leading to frame freezing and erratic displays, particularly in wireless communication scenarios where high transmission rate and low latency are required.
Innovation Solution
A communication method involving a two-step feedback mechanism where a terminal device sends indication information to adjust reference frames and data units for subsequent data frame encoding, avoiding the use of successfully transmitted data frames, thereby improving data transmission reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless communication is used for XR services, then connection flexibility and mobility are improved, but transmission reliability deteriorates due to channel fluctuations
Solution Approach 1:
The patent implements a two-step feedback mechanism where the terminal device first sends indication information about unsuccessfully received communication data blocks, and subsequently sends detailed indication information about specific data units within those blocks. This feedback enables the network device to identify and adjust reference frames and data units, preventing error propagation and improving transmission reliability while maintaining wireless connection flexibility
Solution Approach 2:
The patent performs preliminary identification and adjustment of reference frames and data units before they are used for subsequent encoding. By detecting transmission failures early through the two-step feedback mechanism and adjusting reference data beforehand, the system prevents error propagation to future frames, thereby improving reliability without sacrificing wireless adaptability
2Reliability
If reference frames are adjusted in real-time, then data transmission reliability is improved, but communication delay increases
Solution Approach 1:
The patent applies partial action by implementing a two-step feedback mechanism that provides progressively detailed information rather than complete immediate feedback. The first step identifies failed data blocks, and the second step identifies specific data units within those blocks. This gradual approach enables timely reference frame adjustment with reduced processing overhead compared to waiting for complete error identification, thus improving reliability while minimizing delay
Data Source
AI summary
This application provides a wireless communication method and a communication apparatus. The method includes a terminal device receives a data frame from a second device by using a first device, and notifies the first device when the terminal device determines that a communication data block from the first device is not successfully received. After determining a protocol data packet corresponding to the communication data block, the first device notifies the second device that the first protocol data packet is not successfully transmitted. After determining a data unit that is in the data frame and that corresponds to the communication data block, the terminal device notifies the second device through second-step feedback.