Terminal Connection Switching Before 5G Dead Zones
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Solution Overview
Problem
In wireless communication systems, particularly in local 5G (L5G), terminals entering areas where radio waves are difficult to reach due to blocking objects can experience communication quality deterioration and interruptions.
Innovation Solution
A communication system with a control device that sets preliminary dead areas around known dead zones, using location information to switch connections to alternative base stations or establish redundant lines before the terminal enters the dead zone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If high-frequency bands (28 GHz) are used for 5G/L5G communication, then ultrahigh speed communication is achieved, but dead zones occur where radio waves cannot reach due to linear propagation characteristics
Solution Approach 1:
The control device performs preliminary actions by determining dead zone areas in advance and monitoring terminal positions. When a terminal approaches a dead zone, the system proactively switches connection destinations before the terminal actually enters the dead zone, preventing communication interruption. This preliminary monitoring and proactive switching resolves the contradiction by maintaining reliability while using high-frequency bands for high speed communication.
2Ease of manufacture
If base stations are limited in number for L5G introduction, then introduction cost is reduced, but coverage areas with dead zones increase
Solution Approach 1:
The control device acts as an intermediary that coordinates between multiple base stations and terminals. It monitors terminal positions relative to dead zones and manages handover decisions, enabling seamless communication even when terminals move through areas with limited base station coverage. This intermediary control mechanism maintains communication quality without requiring additional base stations, thus resolving the contradiction between low introduction cost and high reliability.
3Area of stationary object
If terminals move through dead zones, then coverage area is extended, but communication quality deteriorates or interruptions occur
Solution Approach 1:
The system implements feedback by continuously monitoring terminal positions and comparing them with predetermined dead zone areas. Based on this feedback, the control device dynamically switches connection destinations to maintain communication quality. This feedback mechanism allows terminals to move through extended coverage areas while preventing communication deterioration by proactively responding to position changes.
Data Source
AI summary
A communication system includes a terminal configured to wirelessly communicate with a base station and a control device. The terminal includes a transmission unit that transmits location information of the terminal. The control device includes a processor; and a memory that includes instructions, which when executed, cause the processor to execute the following steps: setting an area around a dead zone as a preliminary dead area, acquiring location information of the terminal, and determining whether the terminal is in the preliminary dead area by comparing the location information of the terminal with the preliminary dead area and performing control for switching a connection destination of the terminal when the determining determines that the terminal is in the preliminary dead area.