Single Pair PHY Auto-Negotiation for Channel Loss Adaptability
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Solution Overview
Problem
Existing transceivers operating over standard four twisted pair cables lack adaptability to events associated with channel loss, limiting their ability to establish connections efficiently, especially when multiple channels are not available.
Innovation Solution
A physical layer (PHY) transceiver configured to initiate an auto-negotiation sequence over a single twisted pair channel using a half-duplex mode to exchange parameters with a remote device, and then switch to a dual-duplex mode to establish a high-bandwidth connection, thereby improving adaptability and resource efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing transceivers use multiple twisted pair channels for auto-negotiation, then connection establishment is reliable, but adaptability to channel loss and resource efficiency deteriorate
Solution Approach 1:
The patent applies preliminary action by implementing a fallback mechanism that is prepared in advance. When channel loss is detected during auto-negotiation, the system can switch to using a single available twisted pair channel, which was pre-configured as an alternative path. This allows the system to maintain connection establishment capability even when some channels become unavailable.
Solution Approach 2:
The patent implements dynamics by making the auto-negotiation process adaptive rather than static. The system dynamically adjusts the number of active channels based on real-time channel availability. If all four twisted pair channels are not available, the system dynamically reconfigures to operate with fewer channels, ensuring continuous adaptability to changing network conditions.
2Productivity
If multiple twisted pair channels are used for communication, then bandwidth is increased, but resource efficiency and adaptability to single-channel environments worsen
Solution Approach 1:
The patent applies universality by designing the transceiver to perform multiple functions across different channel configurations. The same auto-negotiation mechanism works whether all four twisted pair channels are available or only one channel is available. This multi-functional design allows the system to adapt to various network topologies and cable configurations, from full four-pair to single-pair operations.
Solution Approach 2:
The patent implements parameter changes by allowing the system to dynamically adjust operational parameters based on available resources. The number of active channels, data rate, and other communication parameters can be changed during auto-negotiation to match the actual physical infrastructure available, enabling optimal performance whether using one channel or four channels.
3Speed
If existing protocols are used to improve throughput, then data transmission speed increases, but adaptability to varying network conditions deteriorates
Solution Approach 1:
The patent implements dynamics by making the protocol behavior adaptive rather than fixed. The auto-negotiation process dynamically adjusts throughput and data rate based on the actual number of available channels and network conditions. This allows the system to achieve high throughput when conditions permit while maintaining functionality when conditions deteriorate, rather than being constrained by fixed protocol requirements.
Data Source
AI summary
Systems, methods, and other embodiments associated with auto-negotiating over a single pair PHY are described. According to one embodiment, an apparatus includes a physical layer (PHY) transceiver configured to communicate over a single twisted pair channel. The apparatus includes a setup logic configured to control the PHY transceiver to initiate an auto-negotiation sequence over the single twisted pair channel with a remote device upon detecting a transmission from the remote device on the single twisted pair channel. The auto-negotiation sequence includes an exchange of parameters with the remote device using a half-duplex mode to communicate on the single twisted pair channel.