Dynamic Uplink Power Control for Wireless Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The deployment of high-power wireless devices in areas designed for low-power devices leads to uplink interference and power mismatches, degrading system performance and increasing unnecessary power consumption due to uncontrolled transmit power levels.
Innovation Solution
Implementing a system that dynamically controls the uplink transmission power of wireless devices by activating or deactivating a high-power transmission mode based on changes in network topology and signal level measurements from access nodes, allowing for real-time adjustments of power classes to minimize interference and optimize power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-power class wireless devices are deployed in areas designed for low-power wireless devices, then the throughput of high-power wireless devices is enhanced, but the uplink link budget for low-power wireless devices is degraded due to power mismatches and uplink interference
Solution Approach 1:
The patent implements dynamic power class adjustment where wireless devices can switch between high-power and low-power modes based on real-time network conditions. The network controller monitors signal levels and device locations, then dynamically reconfigures the power class of wireless devices to match the local deployment scenario, preventing high-power devices from causing interference in low-power zones while maintaining high throughput where appropriate
Solution Approach 2:
The patent changes the power class parameter of wireless devices based on measured signal levels and network topology. When a high-power device detects strong signals from neighboring access nodes or determines it is in a low-power deployment area, the system adjusts the transmit power parameter down to match the local requirements, thereby eliminating the harmful interference effect while preserving connectivity
2Area of stationary object
If wireless devices transmit at maximum allowable power levels, then coverage and throughput are enhanced, but unnecessary power consumption increases when high-power mode is not needed
Solution Approach 1:
The system dynamically adjusts the transmit power of wireless devices based on real-time assessments of network conditions, device location, and coverage requirements. Instead of operating at fixed maximum power levels, devices switch between power modes as needed, consuming high power only when actually required for coverage extension and maintaining low power consumption during normal operation in adequately covered areas
Solution Approach 2:
Wireless devices autonomously monitor their own signal conditions and network environment, then self-adjust their transmit power levels without requiring continuous network control commands. The devices can independently determine when to switch between high and low power modes based on measured signal strengths and known deployment parameters, reducing unnecessary power consumption while maintaining adequate coverage
3Device complexity
If fixed power classes are assigned to wireless devices, then device complexity is reduced, but adaptability to different network topologies and deployment scenarios is limited
Solution Approach 1:
The patent introduces dynamic power class switching capability that allows wireless devices to adapt their power configuration in real-time based on network conditions. The system maintains simple fixed power class definitions but adds a dynamic selection layer that automatically chooses the appropriate power class based on measured signal levels, device location, and network deployment type, thereby achieving adaptability without significantly increasing device complexity
Solution Approach 2:
The system changes the effective power class parameter of wireless devices based on detected network conditions and deployment scenarios. By monitoring signal levels from neighboring access nodes and determining whether the device is in a high-power or low-power deployment area, the system adjusts the transmit power parameter to match the appropriate power class, enabling adaptability to different network topologies while building on simple fixed power class foundations
Data Source
AI summary
Controlling the uplink transmission power includes dynamically activating and deactivating a high-power transmission mode of the wireless devices in response to changes in a network topology, such as presence or absence of different types of access nodes, and signal level measurements of reference signals transmitted from said different types of access nodes. Such dynamic control of the uplink transmission power in real time minimizes interference that may be caused to uplink transmissions of other wireless devices in the network, and mitigates unnecessary power consumption for wireless devices capable of utilizing the high-power mode.