Keyed Cable Connectors for Cellular Base Station Reliability
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Solution Overview
Problem
During the installation or modification of cellular towers, incorrect connections between base station antennas and radios, as well as other components like BBUs and DUs, can lead to downtime and are time-consuming to diagnose and correct, especially in hostile environments where weatherproofing must be removed and reinstalled.
Innovation Solution
A cellular tower plate connection system with keyed cable assemblies and plate assemblies that ensure correct orientation and connection, using keyed connectors to prevent incorrect mating between radio and antenna systems, allowing pre-assembly on the ground and secure, weather-tight connections in a single orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If technicians manually connect cables between antennas and radios without keyed connectors, then the installation process is simple and flexible, but incorrect connections occur leading to downtime and require time-consuming diagnosis and correction
Solution Approach 1:
The patent applies asymmetry by implementing keyed connectors with unique geometric patterns (e.g., specific arrangements of protrusions and recesses) that are asymmetric in nature. Each connector is designed with a specific key pattern that only fits its corresponding port, preventing incorrect connections. This asymmetric design ensures that technicians can only make correct connections, thereby improving reliability without requiring complex active components.
Solution Approach 2:
The patent applies preliminary action by pre-configuring the keyed connectors and ports with specific geometric patterns before installation. The keying patterns are predetermined and built into the connector design, so that when technicians perform the connection, the correct pairing is already established by the physical geometry. This preliminary configuration prevents incorrect connections from occurring in the first place, improving reliability while keeping the installation process straightforward.
2Reliability
If technicians perform connection diagnosis and correction on-site at the cellular tower, then the base station can be repaired, but significant downtime occurs and weather protective material must be removed and reinstalled
Solution Approach 1:
The patent applies preliminary action by ensuring that the keyed connectors are pre-configured with specific geometric patterns that guarantee correct connections. This preliminary design prevents incorrect connections from occurring in the first place, eliminating the need for time-consuming on-site diagnosis and correction. The connection accuracy is built into the system before installation, thereby reducing installation downtime and minimizing the need to remove and reinstall weather protective material.
3Reliability
If keyed cable assemblies with unique patterns are used for each connection, then incorrect connections are prevented, but the device complexity and number of unique components increases
Solution Approach 1:
The patent applies asymmetry by designing keyed connectors with unique geometric patterns that are asymmetric in nature. Each connector type has a specific key pattern (e.g., specific arrangements of protrusions and recesses) that only fits its corresponding port. This asymmetric design ensures connection accuracy while maintaining a relatively simple overall system architecture, as the complexity is confined to the geometric patterns rather than requiring complex active components or control systems.
4Ease of operation
If technicians work in hostile environments at elevated positions on cellular towers, then antenna connections can be made, but safety risks increase and weatherproofing requirements complicate the installation process
Solution Approach 1:
The patent applies preliminary action by pre-configuring the keyed connectors with specific geometric patterns that guarantee correct connections. This preliminary design ensures that technicians can make connections quickly and correctly on-site, even in hostile environments at elevated positions. The built-in guidance system reduces the time technicians need to spend in dangerous conditions and minimizes the need for complex weatherproofing operations, thereby improving ease of operation while mitigating environmental hazards.
Data Source
AI summary
Various cellular plate assemblies are described. A plate may be present having a first side and a second side. Port connectors can be arranged on the first side of the radio plate. Each port connector is configured to be connected with a different port of a cellular radio or cellular antenna system. Cable ports can arranged on the second side of the radio plate. Each cable port can be connected with a corresponding radio port connector of the plurality of radio port connectors. Further, each cable port is keyed differently such that only a particular keyed cable assembly can be mated with the cable port.