Millimeter Wave Beam Polling Across Communication Zones
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Solution Overview
Problem
Conventional Wi-Fi networks using omnidirectional antennas for long-distance communication suffer from signal attenuation, leading to reduced connection quality and data transfer rates, while millimeter wave antenna arrays face challenges with line-of-sight requirements and signal loss or connectivity interruptions due to narrow or wide-angle beam configurations.
Innovation Solution
A communication system employing a millimeter wave antenna array with a zone table and polling table, where a controller sets emission configurations based on signal strength to emit delayed beacon frames and enter Point Coordination Function mode for data transmission, optimizing beam direction and gain to manage multiple communication zones effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If millimeter wave antenna array generates narrow-angle beams, then transmission distance is improved, but coverage area is reduced
Solution Approach 1:
The patent divides the coverage area into multiple communication zones, each served by a dedicated narrow-angle beam. The controller manages multiple zones independently, allowing each beam to focus on a specific directional sector while collectively covering a broader area through zone segmentation.
Solution Approach 2:
The system dynamically adjusts beam directions and switching between zones based on terminal device locations and signal conditions. The controller can reconfigure which zones are active and how beams are directed, adapting the coverage pattern to maintain optimal transmission distance while ensuring comprehensive area coverage.
2Area of stationary object
If millimeter wave antenna array generates wide-angle beams, then coverage area is improved, but transmission distance is reduced
Solution Approach 1:
Instead of using a single wide-angle beam, the patent segments the coverage area into multiple zones, each served by a narrower beam. This segmentation allows the system to achieve wide overall coverage while maintaining focused, high-gain beams for each individual zone, thus preserving transmission distance.
3Area of stationary object
If omnidirectional antenna is used, then coverage area is improved, but signal strength at distance is reduced
Solution Approach 1:
The patent applies local quality by directing focused millimeter wave beams toward specific communication zones where terminals are located, rather than broadcasting uniformly in all directions. This localized energy concentration maintains signal strength in targeted areas while reducing overall energy loss compared to omnidirectional transmission.
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
Enhances signal reach and stability by directing beams to specific zones, maintaining connection quality and data transfer rates, and efficiently managing communication with multiple devices using MU-MIMO and PCF/DCF modes, thereby improving network performance.
Implementation Method 1
Millimeter wave technology is a critical tool in 5G communication, offering significant advantages. With its broad spectrum, millimeter wave technology supports high-speed and large-capacity data transmission
Implementation Method 2
an antenna array using millimeter wave technology can generate directional beams, thereby providing higher gain and effectively compensating for signal attenuation over longer distances
Data Source
AI summary
A communication method using millimeter waves is implemented by a communication system that stores a zone table and a polling table, the zone table including multiple zone datasets corresponding respectively to multiple communication zones. The method includes steps of: for each communication zone, the communication system setting an emission configuration based on the zone dataset that corresponds to the communication zone, where the emission configuration includes an angle of emission and a gain of emission; the communication system emitting, based on the zone table, multiple delayed beacon frames to the communication zones according to the emission configurations, respectively, where each of the delayed beacon frames indicates a preset delayed time according to the polling table; and for one of the communication zones being polled by the communication system, the communication system entering a PCF mode so as to perform data transmission with the accessible terminal device in the communication zone.