Sensing Data Transmission With Incremental Change Extraction
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Solution Overview
Problem
In multi-device joint sensing scenarios, there is a significant amount of redundancy in sensing data due to overlapping sensing areas, leading to high consumption of air interface resources for data transmission.
Innovation Solution
A data transmission method that involves a first apparatus processing sensed data based on reference data stored in a second apparatus to extract incremental and deleted data, using quantization and compression techniques to reduce the amount of data reported, thereby minimizing air interface resource consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If sensing data is transmitted without compression, then data completeness is maintained, but air interface resource consumption increases
Solution Approach 1:
The patent extracts only the changed portions (incremental data and deleted data) from the complete sensing data. The first apparatus compares current sensing data with reference data from the second apparatus, identifies differences, and transmits only these differences. This extraction principle reduces the quantity of transmitted data while maintaining data completeness for the fusion center to reconstruct the full sensing information.
2Measurement precision
If all sensing data is reported, then data accuracy is maintained, but transmission overhead increases
Solution Approach 1:
The patent applies the extraction principle by identifying and transmitting only the incremental data (newly appeared objects or changed attributes) and deleted data (disappeared objects). This ensures data accuracy for changed portions while avoiding transmission of unchanged redundant data, thereby reducing transmission overhead and time.
Solution Approach 2:
The second apparatus performs preliminary action by storing reference sensing data in advance. This pre-stored reference data enables the first apparatus to perform efficient comparison and identify only the changed portions, reducing the amount of data that needs to be transmitted while maintaining accuracy.
3Quantity of substance
If redundant sensing data is transmitted, then data completeness is ensured, but resource efficiency decreases
Solution Approach 1:
The patent extracts and transmits only the essential changed information (incremental and deleted data) rather than transmitting all redundant sensing data. The second apparatus uses its stored reference data to identify what has changed, ensuring data completeness for the changed portions while improving resource efficiency by eliminating redundant transmissions.
Data Source
AI summary
This application relates to methods and apparatuses for data transmission. In an example method, a first apparatus receives first information, processes first data based on the first information to obtain second data, and sends the second data to a second apparatus, where the first information indicates reference data that is of a first sensing area and that is stored in the second apparatus, the first data includes data sensed by the first apparatus in the first sensing area, and the second data includes data that is in the first data and that is changed compared with the first information.