Wireless Interleaver Parameter Adaptation for Channel Congestion
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Solution Overview
Problem
Wireless communication networks face inefficiencies due to interference and congestion, particularly in systems with multiple devices sharing the same network, leading to suboptimal link usage and communication congestion.
Innovation Solution
The implementation of a system that selects between dual sub-carrier modulation (DCM) and non-DCM modes, applying specific interleaver parameters to optimize data transmission based on resource unit sizes, modulation and coding schemes, and spatial streams, supporting features like space-time block coding and multi-user multiple-input-multiple-output (MU-MIMO).
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple devices share the same wireless network, then network coverage and device connectivity are improved, but communication congestion and interference increase
Solution Approach 1:
The patent segments the frequency spectrum into multiple resource units (RUs) with different sizes, allowing simultaneous allocation to different devices. This segmentation enables multiple devices to share the network without causing congestion, as each device receives dedicated frequency resources rather than competing for the same channel.
Solution Approach 2:
The system dynamically selects interleaver parameters based on the dual sub-carrier modulation mode and resource unit configuration. This dynamic adaptation allows the system to optimize communication efficiency for each device's specific allocation, preventing interference while maintaining high productivity across the network.
2Reliability
If dual sub-carrier modulation mode is selected, then resistance to narrowband interference is improved, but device complexity increases
Solution Approach 1:
The patent changes the modulation parameter by selecting between dual sub-carrier modulation and non-DCM modes based on channel conditions. When narrowband interference is detected, the system switches to dual sub-carrier modulation with specific interleaver parameters, providing interference resistance without permanently increasing device complexity.
Solution Approach 2:
The system dynamically adjusts the modulation mode and interleaver parameters based on the selected dual sub-carrier modulation mode. This dynamic parameter adjustment allows the device to maintain low complexity under normal conditions while achieving high reliability when interference resistance is needed.
3Productivity
If interleaver parameters are optimized for specific resource unit sizes, then data transmission efficiency is improved, but system complexity increases
Solution Approach 1:
The patent defines specific interleaver parameters for different resource unit sizes (e.g., 26, 52, 106, 242, 484, 996 tones). The system changes these parameters based on the allocated RU size, optimizing transmission efficiency for each configuration while managing complexity through standardized parameter sets.
Solution Approach 2:
The interleaver parameter selection mechanism serves multiple functions: it optimizes for different RU sizes, adapts to dual sub-carrier modulation mode, and maintains compatibility with various spatial stream configurations. This universal parameter management approach improves efficiency across all scenarios without proportionally increasing system complexity.
Data Source
AI summary
Methods and apparatuses for providing wireless messages can include, for example, an apparatus configured to provide wireless communication. The apparatus includes a memory that stores instructions and a processor coupled with the memory and configured to execute the instructions to select a dual sub-carrier modulation (DCM) mode or a non-DCM mode. The processor is further configured to select one or more interleaver parameters based on the selection of the DCM mode or the non-DCM mode. The processor is further configured to select a first set of interleaver parameters when the DCM mode is selected and a second set of interleaver parameters, different than the first set of interleaver parameters, when the non-DCM mode is selected. The processor is further configured to apply the one or more interleaver parameters to interleave data of a message. The processor is further configured to provide the message for transmission to a receiving device.