Multi-Band Power Control for Coordinated Wi‑Fi Throughput
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Solution Overview
Problem
Transmission power control in coordinated communication systems, such as those defined by the IEEE 802.11be standard, has not been adequately addressed, leading to potential deterioration in performance and throughput when different transmission schemes are used across multiple bands.
Innovation Solution
Implementing independent transmission power control for each band based on specific transmission schemes, such as C-SR, C-OFDMA, and JT, allowing for the selection of higher Modulation and Coding Scheme (MCS) values and maintaining optimal throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If transmission power control is applied in coordinated communication, then communication efficiency is improved, but transmission power management complexity increases
Solution Approach 1:
The transmission power control mechanism is segmented by band, with each band independently managing its transmission power based on the selected transmission scheme. This allows C-SR bands to reduce power while C-OFDMA bands maintain optimal power levels, improving overall communication efficiency without creating system-wide complexity.
Solution Approach 2:
Different transmission power control strategies are applied to different bands based on their specific transmission scheme requirements. Each band receives tailored power management appropriate to its function, rather than a uniform approach, thereby optimizing communication efficiency while keeping individual band management simple.
2Adaptability or versatility
If different transmission schemes are used across multiple bands, then communication adaptability is improved, but throughput performance deteriorates
Solution Approach 1:
The system segments transmission power control by band, allowing each band to independently optimize its power levels according to its transmission scheme. This ensures that C-SR bands and C-OFDMA bands operate with appropriate power settings, maintaining high throughput while supporting multiple transmission schemes across different bands.
Solution Approach 2:
Each band is given tailored transmission power control appropriate to its specific transmission scheme, enabling the system to maintain high throughput performance while accommodating diverse transmission methods. The local optimization ensures that adaptability does not come at the cost of throughput.
3Object-affected harmful factors
If transmission power is reduced for coordinated communication, then interference is reduced, but signal strength may be insufficient
Solution Approach 1:
The transmission power control is segmented by band and transmission scheme, allowing C-SR bands to reduce power for interference reduction while C-OFDMA bands maintain sufficient signal strength. This segmented approach prevents the signal strength issue from affecting the entire system.
Solution Approach 2:
Different power reduction strategies are applied locally to different bands based on their transmission scheme requirements. This ensures that interference reduction is achieved where needed without compromising signal strength in bands that require it, optimizing the balance between harmful factors and signal quality.
Data Source
AI summary
The present invention improves the throughput of a communication system by means of a communication device comprising: a control circuit that performs transmission power control corresponding to a transmission scheme for each individual band included in multiple bands; and a transmitter/receiver circuit that transmits a signal using the multiple bands.