Dynamic SSB Power Boosting for 5G Cell-Edge Coverage
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Solution Overview
Problem
Current 5G wireless networks experience reduced power density at cell edges due to wide beam SSB signal transmission, limiting coverage range.
Innovation Solution
A method involving an AI agent dynamically allocates physical resource blocks (PRBs) to adjust SSB signal power, increasing power density by reallocating PRBs based on received signal strength and UE location data, thereby extending the transmission range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If wide beam SSB signal transmission is used to provide increased coverage area, then coverage area is improved, but power density at cell edge is reduced
Solution Approach 1:
The patent dynamically adjusts SSB transmission parameters including power density and beam width based on real-time UE location and signal strength measurements. The network element modifies transmission characteristics adaptively, transitioning from static wide beam to dynamic beamforming that concentrates power where needed at cell edges while maintaining overall coverage area.
Solution Approach 2:
The patent applies different transmission power densities to different spatial regions. By identifying UEs at cell boundaries with weaker signal strength, the system locally increases power density for SSB transmissions targeted at these specific locations, while maintaining lower power density in well-covered areas, thus resolving the contradiction between overall coverage and edge power density.
2Length of moving object
If power density is increased at cell edge to improve coverage, then transmission range is extended, but overall power consumption increases
Solution Approach 1:
The patent applies power boosting selectively and partially - only to specific SSB transmissions targeted at UEs located at cell boundaries with weaker signal strength. The network element identifies which UEs need enhanced coverage and applies increased power density only to those specific transmissions rather than uniformly increasing power across all transmissions, thus extending transmission range for edge UEs without proportionally increasing overall power consumption.
Solution Approach 2:
The system uses feedback from UEs regarding their received signal strength and location information to automatically determine which transmissions require power adjustment. The network element self-regulates by monitoring UE conditions and autonomously adjusting SSB power density for boundary UEs, enabling extended transmission range only when and where needed based on actual service requirements.
Data Source
AI summary
Aspects of the subject disclosure may include, for example, a method in which a processing system receives data regarding an operating environment of a user equipment device located in a cell of a cellular communication network. The method also includes analyzing the data to determine a power adjustment for a control signal transmitted to the UE device using a set of physical resource blocks (PRBs); allocating, in accordance with the analyzing, a subset of the PRBs for transmission of an adjusted control signal with an adjusted power greater than an initial default power; and transmitting the adjusted control signal to the UE device using the subset of the PRBs with the adjusted power. Other embodiments are disclosed.