Encoder Bit Parsing With Uneven Allocation for Flexible MCS Selection
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Solution Overview
Problem
Existing wireless communication systems face limitations in bit distribution among multiple encoders, leading to reduced flexibility in modulation and coding scheme (MCS) index selection due to the requirement for even bit allocation, which results in the exclusion of certain MCS indices that would produce non-integer values in bit calculations.
Innovation Solution
Implementing uneven bit distribution methods that allow for a first number of data bits to be distributed to each encoder in a subset, except for the last encoder, which receives a different number of bits, based on the determined number of symbols, enabling the use of a broader range of MCS indices by ensuring only the total data bits per symbol are integers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If even bit allocation is used among multiple encoders, then the bit distribution is simple and uniform, but the flexibility in MCS index selection is reduced
Solution Approach 1:
The patent applies asymmetry by transitioning from even bit allocation to uneven bit allocation among encoders. Specifically, the last encoder in the sequence receives a different number of bits (N_DBPS mod N_ES) compared to the other encoders, which receive equal portions. This asymmetric distribution enables support for a broader range of MCS indices that would otherwise produce non-integer bit values, thereby improving adaptability without significantly increasing system complexity
Solution Approach 2:
The patent changes the bit allocation parameter from uniform to non-uniform distribution. By modifying how bits are distributed among encoders - specifically allowing the last encoder to receive N_DBPS mod N_ES bits while others receive equal portions - the system can accommodate a wider range of MCS indices. This parameter change resolves the contradiction by enabling greater flexibility in MCS selection while maintaining a relatively simple distribution mechanism
2Productivity
If a broader range of MCS indices is supported, then data transmission efficiency is improved, but the bit distribution calculation becomes more complex
Solution Approach 1:
The patent changes the bit allocation parameter from uniform to non-uniform distribution. By modifying how bits are distributed among encoders - specifically allowing the last encoder to receive N_DBPS mod N_ES bits while others receive equal portions - the system can accommodate a wider range of MCS indices. This parameter change resolves the contradiction by enabling greater flexibility in MCS selection while maintaining a relatively simple distribution mechanism
Solution Approach 2:
The patent introduces dynamic bit distribution where the number of bits assigned to each encoder can vary based on the total number of data bits and the number of encoders available. The last encoder dynamically receives the remainder bits (N_DBPS mod N_ES), allowing the system to adapt to different transmission scenarios and MCS indices, thereby improving productivity while keeping the calculation method straightforward
Data Source
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AI summary
A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, an apparatus is configured determine a number of symbols in a data field. The apparatus is configured to distribute a first number of data bits to each encoder in a subset of encoders in a set of encoders based on the determined number of symbols. The apparatus is configured to distribute a second number of data bits to a last encoder in the set of encoders based on the determined number of symbols. The apparatus is configured to transmit data to a second wireless device. The data is encoded based on the distributed first and second number of data bits.