Adaptive Antenna Repeater for Wireless Networks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Next-generation mobile communication systems face challenges in achieving sufficient signal-to-noise and interference ratio (SNIR) due to increased data demands, limited radio resources, and the need for higher carrier frequencies, especially in mobile applications like trains and buses, where signal attenuation and Doppler shift complicate network coverage and handover processes.
Innovation Solution
The implementation of a repeater system with adaptive directional antennas that adjust beam pattern characteristics based on location data and signal quality, utilizing GPS and spectrum analysis to optimize signal routing and frequency shifting, thereby enhancing SNIR and minimizing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If higher carrier frequencies are used to increase bandwidth, then bandwidth is improved, but propagation loss increases
Solution Approach 1:
The patent employs adaptive beamforming techniques that dynamically adjust antenna weightings and beam patterns in response to changing channel conditions. The system continuously monitors signal quality and interference levels, then adapts the beamforming parameters to maximize signal strength and minimize propagation loss at higher frequencies.
Solution Approach 2:
The invention changes physical parameters including antenna array configuration, beamforming weightings, and frequency selection to optimize performance. By adjusting these parameters adaptively, the system compensates for increased propagation loss while maintaining the bandwidth benefits of higher carrier frequencies.
2Productivity
If small cell coverage areas are deployed to increase capacity, then spectrum efficiency is improved, but network complexity increases
Solution Approach 1:
The patent combines multiple small cell base stations into a coordinated network system that shares resources and information. Through network MIMO and coordinated beamforming, the system manages the complexity of multiple small cells while achieving high spectrum efficiency through cooperative operation.
Solution Approach 2:
The invention creates a universal small cell architecture that can operate in various configurations (standalone or coordinated with macro cells) and support multiple functions including data transmission, interference management, and handover coordination, thereby managing network complexity through multi-functional design.
3Reliability
If beam pattern characteristics are adjusted to improve signal quality, then SNIR is improved, but device complexity increases
Solution Approach 1:
The patent implements feedback mechanisms where the system continuously monitors signal quality metrics including SNIR, then uses this feedback to adjust beam pattern characteristics. The control unit receives channel state information and adapts antenna weightings accordingly, improving SNIR through closed-loop control while managing complexity through efficient feedback processing.
Solution Approach 2:
The invention enables the antenna system to self-adjust beam patterns based on received channel information without requiring complex external control. The base station autonomously processes channel state information and configures antenna weightings to optimize signal quality, reducing the need for complex external coordination.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution significantly improves SNIR and reduces interference by dynamically adjusting antenna patterns and frequencies, ensuring reliable network coverage and efficient data throughput even in high-speed mobile environments.
Implementation Method 1
at least one of the beam pattern characteristics of the adaptive antenna is adjustable
Implementation Method 2
utilizing GPS and spectrum analysis to optimize signal routing and frequency shifting
Implementation Method 3
The control unit is configured to adjust the at least one adjustable beam pattern characteristic of the adaptive antenna based on location data of the repeater
Data Source
Figure 1~2b
Figure 3~4
Figure 5
AI summary
A repeater (1, 21, 29, 30, 32, 33, 34) for a wireless communication network, the repeater (1, 21, 29, 30, 32, 33, 34) comprising a donor side (3), a coverage side (6), a control unit (8, 11, 12) and a signal line between the donor side (3) and the coverage side (6) for repeating a downlink-signal from the donor side (3) to the coverage side (6) and for repeating an uplink-signal from the coverage side (6) to the donor side (3), wherein at least at one of the donor side (3) and the coverage side (6) the signal line is coupled with an adaptive antenna (19, 36, 43), wherein at least one of the beam pattern characteristics of the at least one antenna (19,36, 43) is adjustable, and wherein the control unit is configured to adjust the at least one adjustable beam pattern characteristic of the first antenna (19, 36, 43) based on location data of the repeater (1, 21, 29, 30, 32, 33, 34).