Centralized Transmission Power Adjustment for 5G IoT Networks
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Solution Overview
Problem
Current methods for adjusting transmission power in mobile communication systems often lead to frequent handovers and coverage holes, limiting user equipment (UE) throughput due to inadequate incorporation of channel information and rapid traffic changes.
Innovation Solution
A method and apparatus for adjusting real-time data transmission power and transmission points in a mobile communication system, where the transmission power for data is adjusted independently of cell-specific reference signals, allowing for improved UE throughput by maximizing performance metrics through centralized management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If transmission power of reference signals is adjusted together with data transmission power, then load balancing between cells and channel quality are improved, but frequent handovers occur and coverage holes may be generated
Solution Approach 1:
The patent segments the transmission power control into two independent parts: reference signal transmission power (for coverage and handover stability) and data transmission power (for throughput optimization). This allows each to be controlled independently based on different criteria, resolving the contradiction between improving throughput and maintaining handover stability.
2Reliability
If transmission power adjustment period is increased to prevent frequent handovers, then handover stability is improved, but channel information and rapid traffic changes are not properly incorporated
Solution Approach 1:
The patent implements dynamic control where data transmission power can be adjusted in real-time based on channel conditions and traffic changes, while reference signal power remains stable for handover purposes. This dynamic approach allows the system to respond rapidly to changing conditions without causing frequent handovers.
3Area of stationary object
If transmission power of reference signal is changed to adjust coverage, then coverage area is modified, but handover is triggered and system complexity increases
Solution Approach 1:
The patent extracts the coverage control function from the data power control function by maintaining reference signal power separately. This allows coverage adjustments to be made without triggering handovers, as the reference signals that UEs use for cell selection and handover decisions remain stable while data power can be optimized independently.
Data Source
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AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A transmission control method and a central management apparatus for performing the method are provided. The method includes receiving transmission control-related information from a base station, determining transmission power of at least one base station and the transmission point of a user equipment based on the transmission control-related information, and transmitting information about the determined transmission power and transmission point of the user equipment to the at least one base station. Furthermore, a base station adjusting transmission power and an operation method of the base station may be controlled under the control of the central management apparatus.