Spatial EIRP Masks for Wireless Interference Management
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Solution Overview
Problem
Existing wireless communication systems face challenges in managing interference effectively, particularly in heterogeneous networks with varying transmit power levels and coverage areas, which can lead to inefficient use of resources and potential interference issues.
Innovation Solution
The implementation of effective isotropic radiated power (EIRP) masks that are determined based on spatial angles and EIRP masks to manage interference by setting transmission limits, ensuring compliance with regulatory requirements and optimizing communication performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional wireless communication systems operate with fixed transmit power levels, then system simplicity is maintained, but interference management effectiveness deteriorates
Solution Approach 1:
The patent implements dynamic transmit power adjustment based on spatial angle information. The system transitions from fixed power levels to variable power control where the base station adjusts transmit power according to the angular position of user equipment, enabling adaptive interference management while maintaining communication quality.
Solution Approach 2:
The patent applies different transmit power levels to different spatial directions. By associating power control with spatial angles, the system creates local quality variations where users in specific angular regions receive tailored power levels, optimizing interference management for each spatial sector rather than applying uniform power control.
2Object-affected harmful factors
If EIRP masks are implemented with spatial angle dependency, then interference management improves, but computational complexity increases
Solution Approach 1:
The patent segments the spatial sphere into discrete angular regions or sectors. By dividing the continuous spatial space into manageable angular segments, the system can apply EIRP masks to specific regions without requiring complex calculations across the entire sphere, reducing computational burden while maintaining effective interference management.
Solution Approach 2:
The patent changes the parameter space from absolute transmit power to EIRP (Effective Isotropic Radiated Power) with spatial angle dependency. This parameter transformation allows the system to manage interference by controlling radiated power in different directions rather than simply adjusting total transmit power, providing more precise interference control with manageable complexity.
3Area of stationary object
If transmit power is increased to improve coverage area, then communication range expands, but interference with other systems increases
Solution Approach 1:
The patent applies local quality control by providing different power levels to different spatial regions. Users in the desired service area receive sufficient power for good coverage, while users in directions that would cause interference to other systems receive reduced power levels, achieving coverage expansion without proportionally increasing interference.
Solution Approach 2:
The system dynamically adjusts transmit power based on the spatial angle of the receiving device. Rather than using a fixed high power level that provides maximum coverage but causes maximum interference, the system dynamically reduces power for angles where interference would occur, maintaining coverage where needed while mitigating interference elsewhere.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may determine an effective isotropic radiated power (EIRP) limit for a communication to be transmitted by the network node, based at least in part on an EIRP mask and a spatial angle associated with the communication. The network node may transmit the communication in accordance with the EIRP limit. Numerous other aspects are described.