Steerable Narrow Beam Antenna Link Establishment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Establishing a reliable wireless communication link between devices with steerable narrow beam antennas can be challenging due to misalignment and varying channel quality, leading to inefficient link establishment and potential signal blockages.
Innovation Solution
A method where the transmitting device sends link request signals with position information, allowing the receiving device to determine channel quality and steer both antennas to achieve optimal alignment, using either a predefined or random position sequence, and confirming the best position for communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a narrow beam antenna is used to improve directional transmission and reduce interference, then transmission directionality is improved, but the difficulty of establishing a reliable communication link increases due to misalignment and varying channel quality
Solution Approach 1:
The transmitting device performs preliminary actions by sending link request signals at multiple predetermined antenna positions before actual communication begins. This allows the receiving device to evaluate channel quality in advance and provide feedback, ensuring reliable link establishment before data transmission starts.
Solution Approach 2:
The receiving device provides feedback information about channel quality for each received link request signal. This feedback mechanism allows the transmitting device to identify the optimal antenna position and adjust accordingly, resolving the reliability issue caused by narrow beam misalignment.
2Reliability
If the transmitting device varies the narrow beam antenna position to find a suitable transmission path, then link establishment success rate improves, but the time required for link establishment increases
Solution Approach 1:
The system performs preliminary channel quality evaluation at multiple predetermined positions before actual communication. By preparing ahead and using feedback to identify the best position in advance, the system avoids time-consuming trial-and-error adjustments during active communication.
Solution Approach 2:
The transmitting device dynamically adjusts its antenna position based on feedback from the receiving device. Instead of static positioning or exhaustive searching, the system adapts in real-time to find the optimal transmission path efficiently.
3Measurement precision
If both transmitting and receiving devices use steerable narrow beam antennas, then transmission precision and directional control are improved, but the complexity of aligning both antennas increases significantly
Solution Approach 1:
The link request signal acts as an intermediary carrier that conveys channel quality information from the receiving device back to the transmitting device. This intermediary mechanism simplifies the alignment process by providing direct feedback about which positions work best, eliminating the need for complex coordinated steering of both antennas.
Solution Approach 2:
The receiving device performs self-service by autonomously evaluating channel quality at different transmitting positions and providing feedback. This self-evaluation capability reduces the complexity of coordinated control between both devices, as the receiving end independently determines the optimal configuration.
4Reliability
If link request signals are transmitted from multiple antenna positions to ensure reliable reception, then link establishment reliability improves, but the quantity of transmitted signals and associated energy consumption increases
Solution Approach 1:
The system transmits link request signals at multiple predetermined positions as a preliminary step before actual communication. This concentrated preliminary probing at key positions, rather than continuous transmission, achieves reliable link establishment with controlled energy expenditure.
Solution Approach 2:
The transmitting device sends link request signals at more positions than strictly necessary (excessive action), but only during the initial link establishment phase. This partial application of excessive transmission ensures reliable detection of the optimal position without sustaining high energy consumption during ongoing communication.
Data Source
AI summary
The present invention comprises a method for establishing a wireless communication link between a first communication device (1) having a narrow beam antenna (2) adapted to be steered to different positions and a second communication device (10), comprising the steps of transmitting a link request signal from said first communication device (1) to said second communication device (10) via said narrow beam antenna, wherein said link request signal comprises information relating to a current position of the narrow beam antenna, and obtaining, in case said link request signal is received in said second communication device (10), channel quality information representative of a current transmission path. The invention further comprises a transmitting device and a receiving device for executing, said method.