Radio Parameter Control for Dead Zone Detection and Optimization
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Solution Overview
Problem
Existing wireless communication systems fail to effectively optimize radio parameters in base stations, particularly in areas with dead zones created by obstacles like high-rise buildings, leading to incomplete cell optimization.
Innovation Solution
A method and apparatus that analyze data from both connected and idle state radio terminals to detect dead zones and control radio parameters, such as transmission power and antenna tilt angles, to improve coverage in these areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If cell optimization control is uniformly performed based on radio quality information from connected state terminals, then optimization process is simple, but dead zones are not eliminated and optimization is incomplete
Solution Approach 1:
The patent changes the parameter of terminal state inclusion from only connected state to both connected and idle states. By incorporating idle state terminals into the measurement and reporting process, the system achieves more complete coverage including dead zones, while maintaining automated operation through parameter-based control.
Solution Approach 2:
The patent segments the terminal population into connected state terminals and idle state terminals, with each group performing measurements and reporting according to their specific characteristics. This segmentation allows the system to leverage the unique advantages of each state: connected terminals provide real-time feedback while idle terminals provide coverage in dead zones.
2Device complexity
If radio parameter optimization is performed without considering dead zones, then control complexity is low, but coverage optimization is insufficient
Solution Approach 1:
The patent implements a feedback mechanism where idle state terminals measure radio quality in dead zones and report this information to the base station. The base station uses this feedback to automatically adjust transmission power and other parameters, eliminating the need for complex manual control while improving coverage in previously unserved areas.
Solution Approach 2:
The system enables self-service optimization where the network automatically detects dead zones through idle terminal measurements and adjusts its own parameters without external intervention. This maintains low control complexity while achieving comprehensive coverage optimization.
3Device complexity
If only connected state terminals are used for measurement, then measurement processing is simple, but measurement coverage is incomplete
Solution Approach 1:
The patent makes the measurement system universal by enabling both connected and idle state terminals to participate in radio quality measurement. Each terminal type contributes measurements according to its operational state, creating a multi-functional measurement system that achieves complete spatial coverage without proportionally increasing processing complexity.
Data Source
AI summary
A method and an apparatus for controlling a radio parameter, as well as a network operation management apparatus and a radio base station, are provided that enable optimization control taking a dead zone into consideration. A radio parameter control apparatus (10) for controlling a radio parameter of a radio base station (20) includes a measured data analysis section (101) that analyzes data measured by a plurality of radio terminals including a radio terminal in idle state to detect a dead zone in a radio cell, and a radio parameter control section (102) that controls the radio parameter of the radio base station based on information regarding the dead zone.