Wireless Sample Compression for High-Rate RF Data Links
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Solution Overview
Problem
The complexity and size of data transfer links in wireless communication apparatuses increase with higher transfer rates, making it challenging to efficiently manage and process high-speed data in 5G communication systems, which require wider frequency bands than previous technologies like LTE.
Innovation Solution
A wireless communication apparatus with a data compressor that compresses digital sample signals based on their probability distribution, using techniques like floating point conversion and LSB truncation, to optimize data transfer and reduce the size of the data transfer link, accompanied by a decompressor to restore the signals for processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the transfer rate of wireless communication apparatus is increased to provide high-speed data service, then the data capacity increases, but the structure of the data transfer link becomes more complicated and the size increases
Solution Approach 1:
The patent extracts and removes redundant information from the digital sample signal through compression techniques. By identifying and eliminating repetitive patterns and less significant bits (LSB truncation), the system reduces the data volume that needs to be transmitted, thereby simplifying the data transfer link structure while maintaining high transfer rates.
Solution Approach 2:
The patent changes the parameter representation of data by converting digital sample values from their original format to a compressed format. This involves changing the precision parameters (truncating LSBs) and encoding parameters (run-length encoding of repetitive values), which reduces the bit width required for transmission and simplifies the overall data transfer link.
2Productivity
If the data capacity to be transferred within a certain time is increased, then the transfer rate increases, but the size of the data transfer link increases
Solution Approach 1:
The compression apparatus extracts and removes redundant data elements from the signal stream. By identifying repetitive sample values and representing them with fewer bits (run-length encoding), and by removing less significant bits that contribute minimally to signal quality, the system increases data capacity without proportionally increasing the physical size of the transfer link.
Solution Approach 2:
The patent segments the digital sample signal into groups of consecutive identical or similar values. By processing these segments separately and applying compression techniques to each segment, the system efficiently packs more information into the same physical transmission medium, increasing capacity without expanding link size.
Data Source
AI summary
A wireless communication apparatus includes a radio frequency integrated circuit (RFIC) configured to receive an input signal to generate a digital sample signal from the input signal, a data compressor configured to compress the digital sample signal according to a compression manner based on a data probability distribution of the input signal varying based on a receivable signal amplitude range of the RFIC, a data decompressor configured to decompress the compressed digital sample signal on the basis of a decompression manner corresponding to the compression manner to generate a decompressed digital sample signal, a data transfer link configured to transfer the compressed digital sample signal to the data decompressor, and a processor configured to process the decompressed digital sample signal.