Terminal Power Control for Triggered P2P AP Interference
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Solution Overview
Problem
Existing methods have not comprehensively addressed interference suppression with an access point due to inter-terminal communication in IEEE 802.11be, particularly in scenarios involving Triggered P2P links.
Innovation Solution
A terminal performs transmit power control for a second link to another terminal based on parameters relevant to a first link to an access point, using a method that includes configuring the transmit power for P2P links to minimize interference with the access point by adjusting the power levels to match or be less than the target received signal strength indicator (RSSI) of the access point.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If inter-terminal communication is performed in IEEE 802.11be, then communication flexibility and throughput are improved, but interference with the access point increases
Solution Approach 1:
The terminal adjusts transmission parameters including power spectral density, transmit power, and modulation and coding scheme (MCS) based on channel quality information and interference conditions. The terminal calculates path loss for both the access point link and inter-terminal link, then determines transmission power to maintain communication quality while limiting interference to the access point below a threshold level.
2Reliability
If transmit power for P2P link is increased, then communication reliability between terminals is improved, but interference with access point increases
Solution Approach 1:
The terminal dynamically adjusts transmit power based on calculated path loss and channel conditions. By determining the appropriate power level that achieves reliable communication while keeping interference below the access point threshold, the system maintains reliability without excessive interference.
Solution Approach 2:
The system uses channel quality information and interference measurements to adjust transmission parameters. The terminal receives feedback about channel conditions and modifies its transmit power and modulation scheme accordingly to maintain reliable communication while controlling interference.
3Object-affected harmful factors
If transmit power is reduced to minimize interference, then interference with access point is suppressed, but communication quality between terminals deteriorates
Solution Approach 1:
The terminal adjusts multiple parameters including power spectral density, transmit power, and MCS based on channel quality information. By optimizing the combination of these parameters rather than simply reducing power, the system maintains communication quality while suppressing interference.
Solution Approach 2:
The system dynamically adjusts transmission parameters based on real-time channel conditions and interference levels. Rather than using a fixed low power level, the terminal adapts its transmission characteristics to maintain quality while controlling interference under varying conditions.
Data Source
AI summary
The objective of the present invention is to suppress interference on an access point as a result of terminal-to-terminal communication. This terminal is provided with: a control circuit which performs transmission power control of a second link with another terminal, on the basis of a parameter relating to the state of a first link with an access point; and a transmitting circuit which transmits signals in accordance with the transmission power control.