Dynamic Transmit Power Limiting for Wireless Base Stations
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Solution Overview
Problem
High noise levels on the receive side of radio or base stations, often caused by multiple devices transmitting at high power, can impair signal decoding and network performance, necessitating a method to limit device transmit power effectively.
Innovation Solution
A system and method that dynamically assess noise levels at a base station, requiring devices to limit their transmit power when noise exceeds a threshold, with adjustments based on carrier aggregation capabilities and device location, using an antenna array and processors to manage communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If devices transmit at high power to maintain communication quality, then signal strength is improved, but noise level on the receive side increases
Solution Approach 1:
The patent implements dynamic transmit power management where the base station continuously monitors noise levels and adjusts device transmit power in real-time. When noise exceeds a threshold, the base station sends power reduction commands to specific devices, and when noise is acceptable, it allows devices to transmit at higher power. This dynamic adjustment resolves the contradiction by adapting power levels to current network conditions rather than using fixed high power transmission.
Solution Approach 2:
The system employs a feedback mechanism where the base station measures uplink noise levels, determines which devices are contributing to excessive noise, and sends control messages back to those devices instructing them to reduce transmit power. The base station continues to monitor noise and adjusts power limits dynamically based on the feedback loop, resolving the contradiction between maintaining signal strength and controlling noise.
2Object-affected harmful factors
If device transmit power is limited to reduce noise, then noise level is reduced, but communication quality may deteriorate
Solution Approach 1:
The patent applies local quality by selectively limiting transmit power only for specific devices that are causing excessive noise, rather than uniformly reducing power for all devices. The base station identifies individual devices contributing to high noise levels and sends power reduction commands only to those devices, while other devices continue transmitting at optimal power levels. This selective approach maintains overall communication quality while reducing noise from problematic devices.
Solution Approach 2:
The system changes the transmit power parameter dynamically based on network conditions. When a device is identified as causing excessive noise, its power parameter is reduced to a specific limit. When the device moves to a different location or network conditions improve, the power limit is adjusted or removed. This parameter change strategy ensures communication quality is maintained by adapting power levels to actual needs rather than applying fixed restrictions.
3Productivity
If noise level monitoring and power limiting is implemented, then network performance is improved, but system complexity increases
Solution Approach 1:
The patent implements a self-service approach where the base station autonomously performs noise level monitoring, device identification, and power limit management without requiring complex coordination between multiple network entities. The base station uses its existing measurement capabilities to detect high noise levels, identifies contributing devices based on their uplink transmissions, and directly controls their power levels through standard control messages. This self-service implementation improves network performance while minimizing additional system complexity.
Data Source
AI summary
Methods and systems are provided for limiting transmit power for one or more devices associated with a wireless telecommunications network. The methods can include determining if a noise level is at or above a threshold value. The methods can also include requiring one or more devices to limit transmit power on communications to the base station.