Mobile Base Station Transmit Power Control for Variable Backbone Capacity
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Solution Overview
Problem
Conventional mobile communication systems fail to maintain quality of service when backbone capacity is insufficient, leading to a bottleneck phenomenon and degraded user satisfaction, as they do not consider backbone capacity in determining transmit power.
Innovation Solution
An apparatus and method for transmit power control in a mobile Base Station (BS) that determines the link state and capacity of both the BS and the mobile communication terminal, adjusting transmit power based on backbone capacity to prevent bottlenecks by lowering power when backbone capacity is insufficient, using a receiver and transmit power manager to manage power levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If transmit power is increased to improve link performance between BS and mobile terminal, then link capacity is improved, but backbone bottleneck phenomenon worsens when backbone capacity is insufficient
Solution Approach 1:
The patent dynamically adjusts the transmit power parameter of the base station based on the relationship between backbone capacity and service capacity. When backbone capacity is insufficient, the system reduces transmit power to prevent backbone overload, while maintaining adequate link performance through controlled parameter modification.
Solution Approach 2:
The system implements a feedback mechanism where the base station continuously monitors backbone capacity and service capacity, compares them, and adjusts transmit power accordingly. This closed-loop control ensures that link performance is optimized without causing backbone bottleneck phenomena.
2Object-affected harmful factors
If transmit power is controlled to reduce interference to neighboring BSs and terminals, then interference is reduced, but service quality deteriorates when backbone capacity is insufficient
Solution Approach 1:
The patent modifies the transmit power parameter based on backbone capacity conditions. By adjusting power levels dynamically, the system reduces interference to neighboring cells while maintaining sufficient service quality through controlled parameter modification rather than uniform power reduction.
Solution Approach 2:
The system applies different power control strategies locally - reducing power only when and where backbone capacity is insufficient, while maintaining higher power levels in areas with adequate backbone capacity. This localized approach preserves service quality while reducing unnecessary interference.
3Quantity of substance
If many mobile terminals access a BS with low backbone capacity, then user coverage is expanded, but quality of service degrades due to backbone bottleneck
Solution Approach 1:
The patent dynamically adjusts transmit power based on the number of connected terminals and backbone capacity. When many terminals connect to a BS with limited backbone capacity, the system reduces power to prevent overload, thereby maintaining service quality while still supporting user coverage through intelligent parameter modification.
Data Source
AI summary
An apparatus and method for power control of a mobile BS of variable backbone capacity. The method includes determining a link state and capacity of a backbone of the BS, and determining a link state and service capacity between the BS and a mobile communication terminal. The method also includes, if the capacity of the backbone is less than the service capacity, setting the backbone capacity similar to the service capacity by lowering a transmit power of the BS by a predefined value.