Vehicle mmWave Link Management via Atmospheric Water Data
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication systems face challenges in providing high-capacity, reliable, and efficient wireless communication to fast-moving vehicles, particularly due to limitations in air interface resource utilization and mobility support, especially in mm-wave frequency bands like 60 GHz, which are directional and sensitive to environmental conditions.
Innovation Solution
A communication system that uses beamform-based mm-wave radio communication with adaptive link management, incorporating atmospheric water content data to optimize the formation and termination of radio links between wireless modems and access points, enabling efficient resource utilization and improved handover performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If mm-wave radio communication is used to increase air interface resource utilization and communication capacity, then communication capacity is improved, but reliability deteriorates due to directional dependency and environmental sensitivity
Solution Approach 1:
The system segments communication into multiple links between different wireless modems and access points. When one link deteriorates due to environmental factors, other links can maintain communication, thus improving reliability while maintaining high communication capacity through mm-wave frequencies
Solution Approach 2:
The system implements feedback mechanisms where atmospheric water content data is received and used to dynamically adjust link management decisions. This allows the system to respond to changing environmental conditions, maintaining reliability while utilizing mm-wave capacity
2Adaptability or versatility
If handover mechanisms are implemented to support vehicle mobility, then mobility support is improved, but data interruption increases during handover transitions
Solution Approach 1:
The system performs preliminary actions by establishing backup links before handover is needed. Atmospheric water content data is used to identify potential future link quality issues, allowing the system to pre-establish alternative communication paths, thus reducing data interruption during mobility transitions
Solution Approach 2:
The system implements dynamic link management where the set of active communication links is continuously adjusted based on real-time atmospheric conditions and vehicle position. This dynamic adaptation allows seamless mobility support without significant data interruption
3Productivity
If directional beamforming is used to improve communication capacity in mm-wave bands, then air interface resource utilization is improved, but adaptability to changing environmental conditions deteriorates
Solution Approach 1:
The system dynamically adjusts the set of active communication links based on real-time atmospheric water content data and environmental conditions. While individual directional beams maintain high resource utilization, the overall system adapts by switching between different directional links as conditions change
Solution Approach 2:
The system changes operational parameters by selecting different communication links based on atmospheric water content levels. When water content increases and affects mm-wave propagation, the system switches to alternative links, thus maintaining adaptability while preserving the high resource utilization benefits of directional beamforming
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A communication system supports communication between an end node (101) of a vehicle (103) and a remote correspondent node (105) via a fixed network (107) which comprises a plurality of wireless access points (109) with a directional antenna arrangement for mm wave radio communication using directional beams. A vehicle (103) comprises wireless modems (111, 113, 701, 703) employing electronically steerable beamforming directional antennas for establishing mm wave radio communication links to the access points (109). At least one first access point (109) is arranged to transmit atmospheric water content data for an area to the wireless modems (111, 113, 701, 703). A link management controller (1101) of the vehicle is arranged to perform the link management in response to the atmospheric water content data. For example, mm wave radio communication links may be initialized or terminated based on the atmospheric water content data.