Wireless Signal Direction Feedback for Millimeter-Wave Reception
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Solution Overview
Problem
In mobile communication systems using millimeter waves, it is challenging for users to directly view or identify the presence of wireless signals due to their high straight traveling property and susceptibility to shielding by obstacles, leading to temporary difficulties in acquiring sufficient radio wave strength.
Innovation Solution
A communication apparatus that includes communication sections for wireless communication, an estimation section to determine the incoming direction of wireless signals based on reception results, and an output control section to present notification information about the signal direction via an output section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If millimeter waves are used for communication, then communication speed and capacity are improved, but signal reliability deteriorates due to significant attenuation and shielding by obstacles
Solution Approach 1:
The patent implements a feedback mechanism where the terminal apparatus detects the incoming direction of wireless signals and feeds back this information to the base station. The base station then adjusts beam forming directions based on this feedback, creating a closed-loop system that continuously optimizes signal transmission. This resolves the contradiction by enabling real-time adaptation to changing signal conditions caused by shielding and attenuation.
Solution Approach 2:
The patent employs dynamic beam forming where the base station continuously adjusts the direction and shape of transmission beams based on real-time feedback from terminal apparatuses. This dynamic adjustment allows the system to adapt to moving obstacles, changing user positions, and varying signal conditions, thereby maintaining reliable communication despite the inherent attenuation and shielding issues of millimeter waves.
2Power
If beam forming is used to improve antenna gain, then communication performance is improved, but system complexity increases due to the need for direction estimation and feedback mechanisms
Solution Approach 1:
The terminal apparatus autonomously performs direction estimation of incoming signals and generates feedback information without requiring complex external assistance. This self-service capability simplifies the overall system architecture by distributing the directional detection function to the terminal end, reducing the complexity burden on the base station while maintaining high antenna gain through beam forming.
3Reliability
If the terminal apparatus changes position or posture to receive direct waves, then signal strength is improved, but user convenience deteriorates as users cannot directly view the wireless signal
Solution Approach 1:
The patent introduces an intermediary feedback mechanism that translates invisible wireless signal directions into visible notification information displayed to the user. Instead of requiring users to manually adjust their position to view signals, the system acts as an intermediary by detecting signal directions and presenting this information through displays or other output interfaces, thereby maintaining signal strength while improving user convenience.
Data Source
AI summary
An information processing apparatus including a communication apparatus includes one or more communication sections, an estimation section, and an output control section is provided. The one or more communication sections each communicate with other communication apparatuses via a wireless communication channel. The estimation section estimates, on the basis of reception results of a wireless signal by at least some of the one or more communication sections, an incoming direction of the wireless signal. The output control section exercises control in such a manner that notification information according to an estimation result of the incoming direction is presented via an output section.