Access Point Signal Strength Control for Joint Beamforming
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Solution Overview
Problem
In wireless communication systems using joint beamforming (JB), the effective use of resources is hindered when the reception intensity of radio waves from different access points (APs) varies, leading to inefficient resource consumption and limited signal improvement.
Innovation Solution
A control apparatus that obtains reception information on signal strength from stations (STAs) to determine optimal communication parameters for joint beamforming, ensuring efficient use of resources by aligning signal strengths and optimizing communication settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If joint beamforming is performed by multiple APs transmitting simultaneously on the same frequency channel, then the reachable distance of signals is improved, but system resources are wastefully consumed when reception intensity varies significantly among APs
Solution Approach 1:
The patent changes the parameter of signal transmission by selectively enabling or disabling participation of individual APs in joint beamforming based on their reception intensity at the target STA. This parameter change allows the system to adapt resource allocation dynamically, avoiding wasteful transmission from APs with poor signal conditions while maintaining the cooperative transmission benefit for APs with good signal conditions.
2Productivity
If multiple APs perform joint beamforming without signal strength identification, then collaborative transmission is achieved, but efficiency deteriorates due to unnecessary resource consumption from APs with poor reception intensity
Solution Approach 1:
The patent performs preliminary identification of reception intensity for each AP at the target STA before executing joint beamforming. This preliminary action allows the system to pre-determine which APs should participate in the collaborative transmission, ensuring that only APs with adequate signal strength are selected. This prevents wasteful resource consumption during the actual transmission phase while maintaining high collaborative transmission efficiency.
Data Source
AI summary
An access point AP includes at least one memory that stores a set of instructions, and at least one processor that executes the instructions to obtain a first communication quality between another AP and a station STA and a second communication quality between the AP and the STA, and communicate with the STA by using joint beamforming, JB, in coordination with the other AP in a case where a difference between the first communication quality and the second communication quality does not exceed a first threshold value.