Method and system for extended reach copper transceiver
Aspects of a method and system for an extended range copper transceiver are provided. Reducing the communication rate provided by multi-rate physical (PHY) layer operations in an Ethernet transceiver may extend the range of the Ethernet transceiver over twisted-pair copper cabling from a standard connection length. The Ethernet transceiver may support up to 1 Gbps or up to 10 Gbps transmission rate over copper cabling. The multi-rate PHY layer architecture in the Ethernet transceiver may support signal-processing operations, such as echo cancellation and/or equalization, which may be applied to the reduced communication rate to enable range extension. The reduced communication rate may be achieved by reducing the symbol rate provided by the multi-rate PHY layer operations. Reducing the communication rate may also enable utilizing greater insertion loss cabling for a standard connection length.
1. A method for wired communication, the method comprising:
performing by one or more circuits in a multi-rate PHY device:
extending a first range of said multi-rate PHY device operating according to a PHY protocol, to a second range higher than said first range, wherein said extending comprises enabling direct wired connections between said multi-rate PHY device and a PHY peer, said extending being achieved by:
reducing a communication rate of said multi-rate PHY device from a higher communication rate to a lower communication rate; and applying during communications at said lower communication rate, at least some of dedicated signal processing operations supported by said multi-rate PHY device for use to achieve said first range during communications at said higher communication rate;
wherein said direct wired connections include a plurality of twisted-pair wires, and wherein said lower communication rate is aggregated by an even distribution over each twisted-pair wire of said plurality of twisted-pair wires if said multi-rate PHY device is configured for said even distribution, and wherein said lower communication rate is aggregated by an uneven distribution over each twisted-pair wire of said plurality of twisted-pair wires if said multi-rate PHY device is configured for said uneven distribution.
2. The method according to claim 1 , wherein said lower communication rate is evenly distributed over each twisted-pair wire in a copper cabling.
3. The method according to claim 1 , wherein said extending comprises reducing said communication rate from a higher symbol rate to a lower symbol rate.
4. The method according to claim 1 , wherein said signal processing operations associated with said higher communication rate comprise at least one of an ECHO cancellation operation, a near-end cross talk (NEXT) cancellation operation, and a far-end cross talk (FEXT) cancellation operations.
5. The method according to claim 1 , wherein said signal processing operations associated with said higher communication rate comprise equalization operations.
6. The method according to claim 1 , wherein said multi-rate PHY device supports up to a 10 Gbps communication rate over copper cabling.
7. The method according to claim 1 , wherein said multi-rate PHY device supports up to a 1 Gbps communication rate over copper cabling.
8. The method according to claim 1 , wherein said extending comprises communicating at said reduced communication rate via a cable type with a greater insertion loss than a cable type associated with said higher communication rate.
9. The method according to claim 1 , wherein said multi-rate PHY device is a multi-rate Ethernet PHY device.
10. A non-transitory machine-readable storage having stored thereon, a computer program having at least one code section for wired communication, the at least one code section being executable by a machine for causing the machine to perform steps comprising:
extending a first range of a multi-rate PHY device operating according to a PHY protocol, to a second range higher than said first range, wherein said extending comprises enabling direct wired connections between said multi-rate PHY device and a PHY peer, said extending being achieved by:
reducing a communication rate of said multi-rate PHY device from a higher communication rate to a lower communication rate; and
applying during communications at said lower communication rate, at least some of dedicated signal processing operations supported by said multi-rate PHY device for use to achieve said first range during communications at said higher communication rate;
wherein said direct wired connections include a plurality of twisted-pair wires, and wherein said lower communication rate is aggregated by an even distribution over each twisted-pair wire of said plurality of twisted-pair wires if said multi-rate PHY device is configured for said even distribution, and wherein said lower communication rate is aggregated by an uneven distribution over each twisted-pair wire of said plurality of twisted-pair wires if said multi-rate PHY device is configured for said uneven distribution.
11. The non-transitory machine-readable storage according to claim 10 , wherein said extending comprises reducing said communication rate from a higher symbol rate to a lower symbol rate.
12. The non-transitory machine-readable storage according to claim 10 , wherein said signal processing operations associated with said higher communication rate comprise at least one of an ECHO cancellation operation, a near-end cross talk (NEXT) cancellation operation, and a far-end cross talk (FEXT) cancellation operation.
13. The non-transitory machine-readable storage according to claim 10 , wherein said signal processing operations associated with said higher communication rate comprise equalization operations.
14. The non-transitory machine-readable storage according to claim 10 , wherein said multi-rate PHY device supports up to a 10 Gbps communication rate over copper cabling.
15. The non-transitory machine-readable storage according to claim 10 , wherein said multi-rate PHY device supports up to a 1 Gbps communication rate over copper cabling.
16. The non-transitory machine-readable storage according to claim 10 , wherein said multi-rate PHY device is a multi-rate Ethernet PHY device.
17. A system for wired communication, the system comprising:
a multi-rate PHY device comprising one or more circuits, wherein:
said one or more circuits extend a first range of said multi-rate PHY device operating according to a PHY protocol, to a second range higher than said first range, wherein said extending comprises enabling direct wired connections between said multi-rate PHY device and a PHY peer, said extending being achieved by:
reducing a communication rate from a higher communication rate to a lower communication rate; and
applying during communication at said lower communication rate, at least some of dedicated signal processing operations supported by said multi-rate PHY device for use to achieve said first range during communications at said higher communication rate;
wherein said direct wired connections include a plurality of twisted-pair wires, and wherein said lower communication rate is aggregated by an even distribution over each twisted-pair wire of said plurality of twisted-pair wires if said multi-rate PHY device is configured for said even distribution, and wherein said lower communication rate is aggregated by an uneven distribution over each twisted-pair wire of said plurality of twisted-pair wires if said multi-rate PHY device is configured for said uneven distribution.
18. The system according to claim 17 , wherein said one or more circuits enable reducing said communication rate from a higher symbol rate to a lower symbol rate.
19. The system according to claim 17 , wherein said signal processing operations associated with said higher communication rate comprise at least one of an ECHO cancellation operation, a near-end cross talk (NEXT) cancellation operation, and a far-end cross talk (FEXT) cancellation operation.
20. The system according to claim 17 , wherein said signal processing operations associated with said higher communication rate comprise equalization operations.
21. The system according to claim 17 , wherein said multi-rate PHY device supports up to a 10 Gbps communication rate over copper cabling.
22. The system according to claim 17 , wherein said multi-rate PHY device supports up to a 1 Gbps communication rate over copper cabling.
23. The system according to claim 17 , wherein said one or more circuits enable communicating at said reduced communication rate via a cable type with a greater insertion loss than a cable type associated with said higher communication rate.
24. The system according to claim 17 , wherein said multi-rate PHY device is a multi-rate Ethernet PHY device.