Mobile Communication Resource Selection Using Future Position Propagation Data
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Solution Overview
Problem
In mobile communication systems, the influence of multipath propagation paths varies with location and frequency, leading to unreliable communication when the position of propagation path estimation differs from the position of resource allocation, resulting in degraded communication quality.
Innovation Solution
A mobile communication system with a propagation path characteristics acquirer section and a resource selector section that anticipates and selects resources based on future communication positions, using a reference antenna with similar characteristics to ensure reliable communication by acquiring propagation path characteristics information ahead of time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If propagation path estimation is performed at current position, then communication resource can be allocated based on current channel conditions, but communication reliability deteriorates when mobile device moves to different position with changed multipath characteristics
Solution Approach 1:
The system performs propagation path estimation at multiple positions in advance before the mobile communication apparatus reaches those positions. By acquiring propagation path characteristics information ahead of time and storing it in a database, the system prepares resource allocation data proactively, ensuring that when the device reaches a future position, the resource allocation is based on pre-acquired accurate channel conditions rather than outdated estimates, thus maintaining communication reliability during movement
Solution Approach 2:
The system feeds back propagation path characteristics information acquired from multiple positions to the resource allocation process. By continuously updating the database with propagation path information from different positions and using this feedback to select optimal resources at each position, the system adapts to changing channel conditions and maintains reliable communication as the mobile device moves through different locations with varying multipath characteristics
2Speed
If resource allocation is based on current propagation path estimation, then immediate communication can be established, but communication quality degrades when position changes and multipath influence changes
Solution Approach 1:
The system performs propagation path estimation and resource selection in advance for multiple future positions before the mobile device reaches them. By pre-acquiring propagation path characteristics information and pre-selecting optimal communication resources for future positions, the system ensures that when the device arrives at each position, communication can be immediately established with high quality using pre-determined resources that account for the specific multipath conditions at that location
Solution Approach 2:
The system dynamically adapts resource allocation to the mobile device's movement by acquiring propagation path characteristics at multiple different positions and selecting resources specific to each position. Instead of using a static resource allocation based on a single estimation, the system updates resource selection dynamically as the device moves, ensuring communication quality consistency by matching resources to the actual propagation conditions at each location
Data Source
AI summary
In a mobile communication system, a mobile communication apparatus in a vehicle includes a selected resource antenna permitting communication using a selected resource, establishing wireless communication with a target communication apparatus. The mobile communication system includes a propagation path characteristic acquirer section and a resource selector section. The propagation path characteristics acquirer section acquires propagation path characteristics information in association with a future communication position, the propagation path characteristics information being about propagation path characteristics between (i) the target communication apparatus and (ii) a reference antenna equal to the selected resource antenna in antenna characteristics including an antenna format. The resource selector section, based on the propagation path characteristics information, selects a resource to be used in communication at the future communication position before the selected resource antenna of the mobile communication apparatus comes to be placed at the future communication position.