Adaptive FEC Code Switching for UE-Specific Wireless Channels
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Solution Overview
Problem
Conventional wireless systems employ a fixed forward error correction (FEC) code scheme, which can lead to inefficiencies due to varying wireless channel conditions, resulting in suboptimal performance for different user equipment (UE) locations and communication channels.
Innovation Solution
A system that dynamically selects and reselects FEC codes based on real-time wireless system characteristics, such as UE location, channel conditions, and interference, allowing multiple FEC codes to be used concurrently for different UEs, enabling adaptive FEC coding to optimize communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed FEC code scheme is employed in conventional wireless systems, then system simplicity and ease of operation are maintained, but wireless network efficiency and communication performance deteriorate under varying channel conditions
Solution Approach 1:
The patent implements dynamic FEC code selection where the wireless system transitions from a static fixed FEC code scheme to a dynamic adaptive scheme. The system continuously monitors wireless channel conditions (such as signal-to-noise ratio, interference levels, and channel quality indicators) and selects appropriate FEC codes in real-time based on current conditions. This dynamic adaptation allows the system to optimize communication performance across varying channel conditions while maintaining manageable complexity through automated selection algorithms and pre-configured code libraries.
2Reliability
If a single FEC code (e.g., LDPC) is used for all UEs, then device complexity is reduced and ease of operation is improved, but performance reliability deteriorates for UEs in different location conditions
Solution Approach 1:
The patent applies local quality by selecting different FEC codes tailored to specific local channel conditions and UE locations. Instead of using a uniform FEC code across all user equipment, the system analyzes individual channel characteristics (such as distance from base station, interference patterns, and signal strength) and assigns optimal FEC codes to each UE based on its specific operating environment. This localized optimization ensures high reliability for each UE while the overall system manages multiple codes through centralized control and automated selection mechanisms.
3Productivity
If FEC code selection is dynamically adjusted based on wireless system characteristics, then communication efficiency and data throughput are improved, but system complexity and measurement precision requirements increase
Solution Approach 1:
The patent implements feedback mechanisms where the wireless system continuously monitors channel conditions (signal quality, interference levels, error rates) and uses this feedback information to dynamically select appropriate FEC codes. The system measures channel characteristics through standard wireless protocols and quality indicators, then feeds this information back to the FEC code selection algorithm. This closed-loop feedback approach enables automated adaptive code selection without requiring complex manual measurement procedures, as the system self-adjusts based on real-time performance data and channel quality metrics.
Data Source
AI summary
Selection of a forward error correction (FEC) code based on a wireless network characteristic is disclosed. The selection can facilitate changing from a first FEC code to a second FEC code in response to the wireless network characteristic changing. The selection can facilitate selection of FEC codes for user equipments (UEs) of a plurality of UEs, wherein the FEC codes can be the same or different FEC codes and can be employed among the plurality of UEs contemporaneously. Selected FEC codes can be applied to uplink and/or downlink channels. An embodiment can select an FEC code based on UE location. An embodiment can select an FEC code based on UE proximity to another device. An embodiment can select an FEC code based on channel signal to noise ratio. An embodiment can select an FEC code based on UE capability. An embodiment can determine a FEC code selection model.