Base Station Coordinated Transmission Power Feedback
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Solution Overview
Problem
In CoMP communication systems, neighboring base stations not included in the CoMP coordinating set allocate radio resources to user terminals without considering the coordinated transmission power, leading to suboptimal system capacity.
Innovation Solution
A base station within a CoMP coordinating set coordinates with other base stations to regulate transmission power for allocated radio resources and shares this information with neighboring base stations to ensure proper resource allocation, thereby improving system capacity by minimizing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If neighboring base stations allocate radio resources to user terminals without considering CoMP coordinated resources, then resource allocation flexibility is improved, but interference increases and system capacity deteriorates
Solution Approach 1:
The patent implements feedback by having base stations transmit information about regulated transmission power resources to neighboring base stations. This feedback mechanism enables neighboring base stations to adjust their resource allocation decisions based on the coordinated resources of CoMP base stations, thereby reducing interference while maintaining allocation flexibility.
Solution Approach 2:
The patent uses transmitted power information as an intermediary between CoMP base stations and neighboring base stations. This intermediary carries the necessary coordination data without requiring direct complex coordination protocols, enabling neighboring base stations to make informed resource allocation decisions that respect CoMP coordinated resources.
2Object-affected harmful factors
If transmission power is regulated for coordinated resources in CoMP, then interference is reduced, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent applies local quality by regulating transmission power specifically for coordinated resources used in CoMP communication, while allowing normal transmission power for non-coordinated resources. This localized power regulation reduces interference only where necessary (in CoMP coordinated resources) while maintaining resource utilization efficiency in other frequency resources.
3Object-affected harmful factors
If neighboring base stations are informed of regulated transmission power resources, then interference coordination is improved, but system complexity increases
Solution Approach 1:
The patent extracts only the essential information needed for interference coordination - specifically, information about regulated transmission power resources - and transmits it to neighboring base stations. This extracted information approach improves interference coordination without requiring complex coordination protocols or extensive data exchange between base stations.
Data Source
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AI summary
A base station according to the present invention is a base station that coordinates with a first neighboring base station to perform coordinated communication with a user terminal. The base station includes: a controller configured to secure, as a coordinated communication resource used for the coordinated communication, the same radio resource as a radio resource that the first neighboring base station secures for the coordinated communication; and a transmitter configured to transmit, to a second neighboring base station that does not perform the coordinated communication with the base station, transmission power information concerning transmission power of the base station corresponding to at least the coordinated communication resource.