Modular Telecommunication System Single Link Expansion
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Solution Overview
Problem
Current telecommunication systems, such as PABX and wireless base stations, require multiple cables for different types of links (voice/data, signaling, and synchronization), leading to complex installations and distinctions between main and satellite modules, which complicates expansion and maintenance.
Innovation Solution
A modular expandable telecommunication system with a main cabinet and remote expansion cabinets connected via a single transmission link for voice/data channels and low-level signaling, utilizing a master clock device, CPU, and DSP for routing messages and synchronization, allowing seamless integration and expansion without distinguishing between modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple cables are used for different types of links (voice/data, signaling, synchronization), then complete functional connection between modules is achieved, but installation complexity and number of connecting wires increase
Solution Approach 1:
The patent combines multiple separate transmission links (voice/data, signaling, synchronization) into a single integrated transmission link. This single link carries all necessary signals between modules, eliminating the need for multiple separate cables and reducing installation complexity while maintaining complete functional connectivity.
Solution Approach 2:
The single transmission link is designed to perform multiple functions simultaneously - carrying voice/data channels, low-level signaling, and synchronization signals. This multi-functional approach replaces several specialized links with one universal link that handles all communication needs between modules.
2Adaptability or versatility
If separate interfaces are used for main and satellite modules, then specific functions are optimized, but transparency and ease of operation decrease
Solution Approach 1:
The patent implements homogeneous interfaces for all modules in the system. Every module uses the same single-link interface design, eliminating distinctions between main and satellite modules. This creates a transparent system where all modules appear identical to users and installers, simplifying operation and maintenance while maintaining full functional capabilities.
3Device complexity
If a digital tie line with network protocol is used, then voice/data and signaling are combined, but distinction between subscribers connected to different modules is created
Solution Approach 1:
The patent extracts the network protocol layer from the transmission link itself, placing intelligence at the module level instead. By removing protocol-based addressing from the physical link and using physical location-based routing, the system maintains user transparency while still achieving link consolidation. Users perceive no difference between modules regardless of protocol usage.
Data Source
AI summary
A modular expandable telecommunication system having a main cabinet and at least one expansion cabinet that are interconnected with each other to obtain an extended telecommunication system with increased connection possibilities for extensions and trunks. The main cabinet and each expansion cabinet have a transmission interface unit allowing connection of the expansion cabinet(s) to the main cabinet via a single transmission link conveying voice/data channels and low level signaling for mutual synchronization and clock recovery for all interconnected cabinets. The main cabinet has a master clock device, a CPU for running software applications and a DSP for routing the higher level messages issued by the CPU depending on the physical location of the expansion cabinet.