Compressed Packet Formatting With Pointer Count Indicators
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Solution Overview
Problem
In wireless communication systems, there is a challenge in efficiently formatting data packets for compression, particularly in distinguishing between compressed and uncompressed portions, which affects transmission efficiency and decompression reliability.
Innovation Solution
The method involves identifying duplicate data strings within data packets, replacing them with pointers, and including an indicator to denote the number of pointers, thereby creating a compressed data packet that efficiently differentiates between pointer information and literal data, improving decompression efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If data packets are compressed by replacing duplicate data strings with pointers, then packet size is reduced and transmission efficiency is improved, but the complexity of formatting and distinguishing compressed portions increases
Solution Approach 1:
The data packet is segmented into distinct portions: a header section containing the indicator value that specifies the number of pointers, and a body section containing the compressed data with pointer replacements. This segmentation allows the receiving device to systematically process the packet by first reading the indicator and then using it to guide the decompression process, thereby managing complexity through structured division.
Solution Approach 2:
The patent introduces a new parameter (the indicator value specifying the number of pointers) that changes the state of the data packet from uncompressed to compressed. This parameter change provides a clear marker that enables the receiving device to distinguish between compressed and uncompressed portions without requiring complex formatting logic, thus reducing the perceived complexity while maintaining compression benefits.
2Reliability
If an indicator specifying the number of pointers is included in the compressed packet, then decompression reliability is improved, but the overhead of the compressed packet increases
Solution Approach 1:
The patent applies partial action by including only the essential indicator information (the count of pointers) without adding redundant metadata or extensive formatting structures. This minimal overhead approach provides sufficient information for reliable decompression while avoiding excessive packet size increase, striking a balance between reliability and overhead.
3Productivity
If duplicate data strings are replaced with pointers, then transmission efficiency is improved, but the difficulty of identifying and processing compressed portions increases
Solution Approach 1:
The patent uses the indicator in the header as a form of 'signal change' that visually (in data terms) marks the transition from uncompressed to compressed portions. The indicator value acts as a clear marker that tells the receiving device how many pointer replacements to expect, making it easy to identify and process compressed portions without confusion, thus maintaining high transmission efficiency while reducing identification difficulty.
Data Source
AI summary
Methods and apparatus are described for formatting a compressed data packet. The methods and apparatus include identifying a first data string within a data packet that was previously stored at a first memory location in a compressor memory, and generating a first pointer that references the first memory location in the compressor memory. Further, these aspects optionally include identifying a second data string within the data packet that was not previously stored in the compressor memory. Additionally, these aspects include creating a compressed data packet by replacing the first data string with the first pointer and copying the second data string, and including an indicator corresponding to a number of pointers in the data packet.