Communication Network Control System for Emergency Speech Reliability
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Solution Overview
Problem
Communication network congestion, particularly in densely populated or disaster areas, hampers efficient speech communication due to finite resources, and existing congestion control methods either delay email transmission or compromise sound quality during emergencies.
Innovation Solution
A communication network control system that automatically selects a suitable speech outgoing/incoming scheme or CODEC based on congestion state information received from a radio base station, allowing for minimal deterioration in sound quality by switching between circuit and packet domains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional congestion control methods are used to manage network resources, then network congestion is controlled, but speech communication reliability deteriorates during emergencies
Solution Approach 1:
The system dynamically switches between circuit domain and packet domain based on real-time congestion conditions. During normal operation, packet domain is used for email communication; during congestion or emergencies, the system transitions to circuit domain for reliable speech communication, making the communication domain adaptable to changing network conditions
Solution Approach 2:
The system changes the communication parameter (domain type) from packet-based to circuit-based when congestion is detected. The base station monitors congestion state and signals terminals to switch domains, effectively changing the fundamental parameter of communication methodology to maintain speech reliability under congestion
2Productivity
If packet domain is used for email communication during congestion, then network resource usage is optimized, but speech communication capability is compromised
Solution Approach 1:
The communication system is segmented into two distinct domains: packet domain for non-critical data communication (email) and circuit domain for critical voice communication. This segmentation allows each domain to be optimized independently - packet domain for resource efficiency and circuit domain for speech reliability - and enables selective use based on communication type and network conditions
3Reliability
If automatic domain selection is implemented based on congestion state, then speech communication reliability is maintained, but system complexity increases
Solution Approach 1:
The base station acts as an intermediary that monitors network congestion and manages domain selection for terminals. Instead of requiring complex decision-making logic in each terminal, the base station centralizes the intelligence by monitoring overall network state and instructing terminals on which domain to use, thereby maintaining reliability while reducing terminal complexity
Data Source
AI summary
The present invention can provide a radio communication apparatus comprising an antenna which receives a restriction signal from a radio base station, a reception circuit which decodes the restriction signal received by said antenna, and a control circuit which controls the radio communication apparatus, in which the control circuit can be adapted to select appropriately a speech outgoing/incoming scheme for performing communication with the radio base station on the basis of the restriction signal from the radio base station. As the speech outgoing/incoming scheme, a domain scheme or a speech communication scheme is used. In addition, the present invention further provides a communication network control system using the radio communication apparatus, and a communication network control method.