Spatial Grid Power Control for Safer High-Throughput Downlinks
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Solution Overview
Problem
Current network devices face low transmit power utilization due to extensive overall transmit power control, affecting downlink channel quality, received signal-to-noise ratio, and downlink throughput, especially in large-bandwidth multi-user scenarios, while also failing to meet safety requirements for electromagnetic radiation.
Innovation Solution
The network device divides space into spatial grids, using them as a granularity to control transmit power, enabling power sharing, reduction, or beam suppression to ensure power does not exceed grid-specific thresholds, thereby improving utilization and meeting safety requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If extensive overall transmit power control is performed on a cell, then safety requirements for radio wave electromagnetic radiation are met, but transmit power utilization is low
Solution Approach 1:
The patent divides the cell coverage area into multiple spatial grids based on angle ranges. Each spatial grid is independently controlled with its own power threshold, allowing fine-grained power management. This segmentation enables the system to apply power control only where necessary rather than uniformly across the entire cell, thus improving power utilization while maintaining safety compliance.
Solution Approach 2:
Different power thresholds are assigned to different spatial grids based on their specific characteristics and safety requirements. The network device determines appropriate power thresholds for each spatial grid independently, allowing local optimization of power allocation. This ensures that power is allocated efficiently in each spatial region while meeting electromagnetic radiation safety standards.
2Productivity
If transmit power is increased to improve downlink throughput, then user experience improves, but power resource limitation becomes more prominent
Solution Approach 1:
The network device dynamically adjusts the power thresholds for different spatial grids based on real-time conditions including bandwidth, user quantity, and service requirements. This dynamic adjustment allows the system to optimize power allocation for high throughput scenarios while managing overall power resources effectively, adapting to changing network conditions without exceeding power limits.
Solution Approach 2:
The patent changes the power threshold parameter for each spatial grid according to specific network conditions such as bandwidth size, user density, and service type. By adjusting these parameters dynamically, the system can achieve high downlink throughput in scenarios requiring it while conserving power resources in other scenarios, effectively resolving the contradiction between throughput and power availability.
3Speed
If transmit power is increased to meet low-latency real-time performance requirements, then service quality improves, but power resource limitation becomes more prominent
Solution Approach 1:
The spatial grid segmentation allows the system to allocate higher power to specific grids serving low-latency services when needed, rather than uniformly increasing power across all grids. This targeted power allocation enables the system to meet real-time performance requirements for specific services while managing overall power resources efficiently.
Solution Approach 2:
The network device can dynamically adjust power thresholds for spatial grids serving time-sensitive services to meet low-latency requirements. By changing power parameters selectively based on service type and urgency, the system achieves high-speed real-time performance where needed without depleting overall power resources.
Data Source
AI summary
The present disclosure relates to transmit power control methods and apparatuses. In one example method, a network device determines a transmit power threshold corresponding to a spatial grid. The network device schedules a resource block (RB) or a carrier of one or more terminal devices corresponding to the spatial grid to control a transmit power corresponding to the spatial grid to be less than or equal to the transmit power threshold corresponding to the spatial grid.