Modulation Apparatus Odd Even Bit Segmentation Memory Reduction
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Solution Overview
Problem
Existing modulation methods in mobile communication systems require extensive shifting operations and occupy large memory spaces due to the need to match varying bit lengths for data sources and modulation formats, leading to inefficiencies and resource consumption.
Innovation Solution
A modulation method that extracts and separates odd and even bit data from each modulation unit based on position adjustment information, allowing for format adjustment and scaling of modulation parameters without extending them, thereby eliminating the need for shifting operations and reducing memory usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the data source is divided according to the number of bits required for modulating and table lookup is performed, then modulation can be implemented, but more shifting operations are required leading to slower speed and lower efficiency
Solution Approach 1:
The patent segments the bit data into odd-position bits and even-position bits, processing them separately through different lookup tables. This segmentation eliminates the need for shifting operations by directly accessing the appropriate bits and combining results, thereby improving modulation efficiency while reducing operational complexity.
Solution Approach 2:
The patent introduces intermediate lookup tables that store pre-computed modulation values for odd and even bit positions. These intermediate structures act as mediators that eliminate the need for real-time shifting operations, allowing direct retrieval and combination of modulation results, thus improving speed and efficiency.
2Adaptability or versatility
If modulation parameters are extended according to a format of a data source, then modulation can be implemented, but the extended modulation parameters occupy a large memory space consuming too many memory resources
Solution Approach 1:
The patent divides the modulation parameter storage into separate lookup tables for odd and even bit positions. Instead of extending modulation parameters to cover all possible data source formats, separate compact tables are created for each bit position type, reducing total memory occupancy while maintaining adaptability to different data formats.
Solution Approach 2:
The patent applies different lookup tables with locally optimized structures for odd and even bit positions. Each lookup table is tailored to its specific bit position requirements, avoiding the need for universally extended parameters. This local optimization reduces memory space while maintaining format compatibility through selective application.
Data Source
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AI summary
Provided is a modulation method. The method includes: acquiring position adjustment information and modulation information of to-be-modulated data; extracting bit data of each first modulation unit in the to-be-modulated data according to the position adjustment information to obtain first bit data on an odd bit and second bit data on an even bit of the each first modulation unit; performing a format adjustment on the extracted bit data according to the position adjustment information to obtain at least two groups of transition data with a same data length as the to-be-modulated data, where each second modulation unit in the transition data includes an extension bit and a data bit, and data on the data bit is configured to be the first bit data or the second bit data; determining from the modulation information a modulation parameter corresponding to each second modulation unit according to bit data of each second modulation unit in each group of transition data; and arranging, according to an arrangement sequence of second modulation units in each group of transition data, modulation parameters. Further provided are a modulation apparatus and a computer storage medium.