Base Station Interference Information for Wireless Throughput
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Solution Overview
Problem
In commercial wireless networks, interference signals significantly affect large areas, degrading system throughput and necessitating an effective method for processing interference at cell edge areas.
Innovation Solution
A method and apparatus where a Base Station acquires interference information from neighboring cells and transmits it to User Equipment, enabling successful blind detection and interference cancellation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If interference cancellation is performed at cell edge areas, then system throughput is improved, but device complexity increases due to blind detection and interference information processing
Solution Approach 1:
The patent introduces an interference information message as an intermediary carrier that conveys interference characteristics from the base station to the user equipment. This mediator enables the UE to perform interference cancellation without requiring complex direct measurement and analysis capabilities, thus improving throughput while managing device complexity through standardized information exchange protocols
2Measurement precision
If blind detection is performed on interfering cell signals, then interference cancellation accuracy is improved, but processing time increases
Solution Approach 1:
The base station performs blind detection and acquires interference information in advance, encoding it into interference information messages before transmission to user equipment. This preliminary action allows the UE to receive pre-processed interference characteristics, reducing the time required for real-time interference cancellation while maintaining accuracy through the pre-analyzed interference data
3Reliability
If interference information is transmitted to all user equipment, then interference cancellation capability is improved, but network signaling overhead increases
Solution Approach 1:
The patent applies local quality by providing interference information selectively to user equipment that actually requires it - specifically to UEs located at cell edge areas where interference from neighboring cells is significant. This targeted approach ensures that interference cancellation capability is enhanced where needed while minimizing unnecessary signaling overhead to UEs in non-affected areas
Data Source
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AI summary
A method and an apparatus for controlling interference in a wireless communication system are provided. The method for controlling interference by a Base Station (BS) in a wireless communication system includes receiving an interfering cell signal transmitted by an interfering cell located adjacent to the BS, acquiring interference information based on the received interfering cell signal, and transmitting the acquired interference information to a User Equipment (UE). Because the BS acquires interference information between the BS and a neighboring cell and transmits the acquired interference information to the UE, the UE can effectively cancel interference at a cell edge area and the like, so that the system throughput of the entire wireless network can be significantly increased.