Combined Data Encoding for Adaptive Control-Payload Decoding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication systems inefficiently use separate channels for control and payload data, leading to higher energy costs per bit for control data transmission and inefficient resource utilization due to poor performance of FEC schemes with short block lengths.
Innovation Solution
Encoding control and payload data together within a single message, using a shared high-level encoding scheme where control data contains decoding parameters for the payload, allowing partial decoding and adaptive parameter selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate channels are used for control data and payload data, then the receiver can decode control message to determine coding parameters, but the energy cost per bit for control data transmission is higher and resource utilization is inefficient
Solution Approach 1:
The patent combines control data and payload data into a single concatenated data stream that is encoded together using a single channel code. This merging eliminates the need for separate control and payload channels, allowing the payload to benefit from the longer block length of the combined code while the control data is embedded within the same codeword structure.
Solution Approach 2:
The patent segments the encoded codeword into a first part containing decoded control data and a second part containing payload data. The receiver decodes the first part to extract control parameters, then uses those parameters to decode the second part. This segmentation allows hierarchical decoding where control information is extracted first to enable subsequent payload decoding.
2Adaptability or versatility
If separate channels are used for control data and payload data, then the control message can be decoded to identify coding scheme, but the resource utilization is inefficient due to poor FEC performance with short block lengths
Solution Approach 1:
The patent merges control data and payload data into a single encoded stream, creating a longer effective block length for the channel code. This improves the performance of forward error correction since the code operates on a longer combined block rather than on the short control data alone, thereby improving resource utilization efficiency while maintaining coding scheme adaptability.
Solution Approach 2:
The patent changes the block length parameter of the channel code by concatenating control and payload data. This parameter change transforms the code from operating on short control blocks to operating on longer combined blocks, improving the code's error correction performance and resource efficiency while still allowing the control parameters to dictate the payload's specific coding parameters.
3Reliability
If control data is concatenated with payload data, then the block length increases improving FEC performance, but it is only possible to transmit control message relating to future payload data
Solution Approach 1:
The patent applies preliminary action by placing the control data at the beginning of the concatenated stream before the payload data. The receiver decodes this first part to obtain control parameters in advance, which are then used to decode the subsequent payload part. This preliminary decoding of control information enables the system to adapt to future payload requirements while maintaining the benefits of concatenated encoding.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A signal transmitter and a signal receiver for interpreting a received message, the receiver being configured to perform the steps of: decoding a first part of the message using a channel decoding scheme with a predefined set of decoding parameters to form a first data block; and subsequently decoding a second part of the message using the channel decoding scheme with decoding parameters that are at least partially dependent on the content of the first data block.