Uplink Scheduling Synchronization for Low-Latency Deterministic Communication
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Solution Overview
Problem
Existing communication systems experience high latency in deterministic media transmission due to inefficient synchronization of air interface scheduling resources, leading to suboptimal user experience.
Innovation Solution
A communication apparatus adjusts the periodicity and start moment of scheduling resources based on received parameter information to align with air interface scheduling, reducing latency by ensuring timely data processing and transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional communication protocols are used, then device compatibility is maintained, but communication efficiency deteriorates due to excessive header information and redundant acknowledgments
Solution Approach 1:
The patent extracts and removes unnecessary header information and redundant acknowledgment mechanisms from the conventional communication protocol. By taking out only the essential data transmission components and eliminating verbose protocol elements, the communication efficiency is improved while maintaining sufficient device compatibility.
Solution Approach 2:
Instead of following the conventional approach of sending complete header information with every data packet, the patent inverts the strategy by using minimal headers and relying on context-aware interpretation. The receiving device reconstructs full protocol information from abbreviated transmissions, reversing the traditional information flow pattern.
2Reliability
If detailed error checking and retransmission protocols are implemented, then communication reliability is improved, but communication speed deteriorates due to frequent stop-and-wait cycles
Solution Approach 1:
The patent merges multiple communication operations into continuous streams rather than separate stop-and-wait cycles. Error checking and data transmission are combined into overlapping windows where multiple packets can be in transit simultaneously, maintaining reliability through cumulative verification while eliminating idle waiting periods that reduce speed.
Solution Approach 2:
The receiving device performs preliminary processing and validation of incoming data packets before full acknowledgment is required. By pre-checking error conditions and preparing for potential retransmissions in advance, the system maintains high reliability while reducing the frequency and duration of communication stoppages.
Data Source
Figure 1A~1B
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AI summary
This application provides a communication method, apparatus, and system. The method includes: A communication apparatus receives first parameter information of an air interface scheduling resource allocated by an access network device accessed by a terminal device, where the first parameter information includes a length of a first periodicity and a first start moment; The communication apparatus determines, based on the first parameter information, second parameter information of a scheduling resource required for processing first uplink data, where the second parameter information includes a length of a second periodicity and a second start moment. Based on the foregoing solution, the communication apparatus receives the first parameter information of the air interface scheduling resource, and adjusts, based on the first parameter information, a periodicity and/or a start moment for locally processing the uplink data, so that an end-to-end latency is reduced, and a latency variation of a deterministic service is reduced, thereby improving user experience.