Non-Contiguous Sub-Band Allocation for Wireless Interference Reduction
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Solution Overview
Problem
Wireless communication networks face inefficiencies due to device interference and congestion, particularly in scenarios with multiple devices, leading to suboptimal link usage and communication congestion.
Innovation Solution
A communication device and method that allocate and utilize non-contiguous or contiguous sub-bands of wireless communication channels for concurrent data transmission, employing independent encoding and separate resource allocation to improve transmission efficiency, including the use of Fast Fourier Transform (FFT) units and physical layer data units (PPDUs) to manage channel resources effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple devices transmit data over wireless channels, then network capacity and data throughput increase, but device interference and communication congestion worsen
Solution Approach 1:
The wireless channel is segmented into multiple sub-bands (first sub-band and second sub-band) that are allocated to different devices for concurrent transmission. This frequency division segmentation allows multiple devices to transmit simultaneously without interfering with each other, thereby increasing network throughput while reducing device interference.
2Ease of operation
If contiguous sub-bands are allocated to devices, then resource allocation simplicity is improved, but resource utilization efficiency deteriorates due to fragmentation
Solution Approach 1:
The system dynamically changes the allocation parameters by providing both contiguous and non-contiguous sub-band allocation options. Contiguous allocation (first option) maintains simplicity for devices needing large continuous bandwidth, while non-contiguous allocation (second option) improves resource utilization by allowing devices to use scattered available frequency resources, reducing fragmentation waste.
3Productivity
If non-contiguous sub-bands are allocated to devices, then resource utilization efficiency is improved by reducing fragmentation, but device complexity increases
Solution Approach 1:
The transmission processing is segmented into independent parallel paths for each sub-band. Multiple encoders independently encode data for different sub-bands, and multiple inverse FFT units independently process each sub-band. This segmentation allows non-contiguous sub-band allocation to improve resource utilization while keeping each processing unit relatively simple, as the overall complexity is distributed across parallel independent processors.
4Reliability
If separate encoders are used for each sub-band, then transmission independence and reliability are improved, but device complexity increases
Solution Approach 1:
The encoding function is segmented into multiple independent encoders, each dedicated to a specific sub-band. This segmentation improves reliability by isolating encoding failures to individual sub-bands rather than affecting the entire transmission. The complexity increase is acceptable as each encoder is a standardized component, and the modular structure allows for efficient implementation and maintenance.
Data Source
AI summary
Methods and apparatuses can be disclosed for communicating over a wireless communication network. One communication device includes a processor configured to allocate, or receive allocation of, at least a portion of a first sub-band of a channel and at least a portion of a second sub-band of the channel for use by the communication device. The communication device further includes a plurality of encoders configured to independently encode first and second data for wireless transmission over the first and second sub-bands, respectively. The communication device further includes a transmitter configured to transmit the independently encoded first and second data over the first and second sub-bands, respectively.