Adaptive Antenna Radiation Patterns for Cellular Interference Suppression
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Solution Overview
Problem
Conventional mobile radio devices face interference issues due to their inability to dynamically adjust radiation patterns in real-time, especially in high-frequency cellular communication systems, leading to suboptimal signal reception and interference suppression.
Innovation Solution
The method involves an antenna system that selectively provides multiple radiation patterns, characterized by central beam steering angles and angular interference suppression ranges, using phase shifting and gain control values to dynamically select patterns that maximize signal reception while minimizing interference, by temporarily storing and using radiation pattern information for real-time operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional mobile radio devices use fixed radiation patterns, then device complexity is reduced, but interference suppression capability deteriorates
Solution Approach 1:
The patent implements dynamic radiation pattern selection by enabling the antenna system to switch between multiple pre-characterized radiation patterns based on real-time interference conditions. The system dynamically adjusts the radiation pattern without requiring complex real-time pattern synthesis, thereby improving interference suppression while maintaining manageable device complexity through the use of pre-stored pattern information.
2Object-affected harmful factors
If multiple radiation patterns are selectively provided, then interference suppression is improved, but device complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-characterizing multiple radiation patterns and storing their information (beam steering angles, interference suppression ranges) before actual operation. During real-time communication, the system simply selects from these pre-characterized patterns based on current interference conditions, avoiding the complexity of real-time pattern synthesis while maintaining effective interference suppression.
Solution Approach 2:
The system changes operational parameters by selecting different pre-characterized radiation patterns with distinct beam steering angles and interference suppression characteristics. This parameter-based selection approach allows the system to adapt to varying interference conditions without implementing complex real-time pattern generation mechanisms.
3Adaptability or versatility
If radiation pattern information is stored and used temporarily, then adaptability is improved, but loss of time for pattern selection occurs
Solution Approach 1:
By pre-characterizing and storing radiation pattern information including beam steering angles and interference suppression ranges before operation, the system eliminates time-consuming real-time pattern synthesis. During operation, the system quickly retrieves and applies appropriate pre-stored pattern information, achieving both high adaptability and fast response time.
Data Source
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AI summary
Method of operating an apparatus for transmitting and/or receiving radio frequency, RF, signals, particularly for a mobile radio device for a wireless communications system, particularly a cellular communications system, said apparatus comprising an antenna system configured to selectively provide a plurality of different radiation patterns, wherein said method comprises: providing radiation pattern information characterizing at least one of a) a central beam steering angle associated with at least some of said different radiation patterns, b) an angular interference suppression range associated with at least some of said different radiation patterns, said method further comprising: at least temporarily using said radiation pattern information for transmitting and/or receiving said RF signals.