6 GHz Access Point Power Control for Fixed-Service Interference
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Solution Overview
Problem
In wireless communication systems, particularly 5G networks, interference between access points and fixed service devices transmitting in the same frequency band is a challenge due to the lack of effective methods to determine and manage transmission power based on the spatial relationship and potential interference zones, leading to reduced spectral efficiency and increased latency.
Innovation Solution
A control apparatus determines the horizontal and vertical location of a wireless communication device to assess its position relative to Radio Access Technology devices, adjusting transmission power to avoid interference by identifying potential interference zones and ensuring compliance with regulatory requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If access points transmit in the 6 GHz band without power control, then data transfer speeds and connectivity are improved, but interference with fixed service devices increases
Solution Approach 1:
The system dynamically changes the transmission power parameter of access points based on their spatial relationship with fixed service devices. By adjusting power levels according to location and height, the system maintains high data transfer speeds while reducing interference with licensed fixed service operations.
Solution Approach 2:
The system implements a feedback mechanism where the controller receives information about fixed service device locations and heights, then adjusts access point transmission power accordingly. This closed-loop control ensures interference is minimized while maintaining network performance.
2Illumination intensity
If transmission power is increased to improve coverage, then signal strength is improved, but interference with other devices increases
Solution Approach 1:
The system applies different transmission power levels to different access points based on their local spatial characteristics. Access points closer to fixed service devices or at heights that could cause interference use lower power, while those in suitable locations can operate at higher power for better coverage.
Solution Approach 2:
The system incorporates the vertical dimension (height) into power control decisions. By considering the altitude of both access points and fixed service devices, the system can allow higher transmission power when vertical separation reduces interference risk, thereby improving coverage without harmful effects.
3Reliability
If automatic frequency coordination is implemented, then interference management is improved, but system complexity increases
Solution Approach 1:
The system introduces a controller as an intermediary that centralizes the complex interference management functions. This controller receives location and height information, determines appropriate power levels, and communicates decisions to access points, simplifying the architecture while improving interference management reliability.
Solution Approach 2:
The system performs preliminary determination of transmission power levels based on pre-collected location and height data before actual transmission begins. This advance planning reduces real-time computational complexity while maintaining reliable interference management.
Data Source
AI summary
A method of controlling wireless communication device operation, the method comprising: determining a height of a wireless communication device in response to a horizontal location of the wireless communication device corresponding to a potential transmission regulation zone; determining, based on the horizontal location of the wireless communication device and the height of the wireless communication device, whether the wireless communication device is disposed in a transmission regulation zone relative to a first RAT device (first Radio Access Technology device) and a second RAT device; and providing, based on whether the wireless communication device is disposed in the transmission regulation zone, an indication of transmission power for wireless signal transmission by the wireless communication device.