Method and system for reducing transceiver power via a variable number of channels

• US 8,270,434 B2
• Filed: 09/21/2007
• Issued: 09/18/2012
• Est. Priority Date: 03/12/2007
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Powell, Scott
• Primary Examiner(s): Kizou, Hassan
• Assistant Examiner(s): NGUYEN, TOAN D
• Application Number:
  US11/859,482
• Publication Number:
  US 20080225894A1
• Time in Patent Office: 1,824 Days
• Field of Search: 370/230, 370/252, 370/431, 370/433, 370/468, 370/477, 370/464, 370/474, 709/250
• US Class Current: 370/468
• CPC Class Codes: H04L 12/40039 Details regarding the setting of the power status of a node according to activity on the bus
• CPC Class Codes: H04L 12/40136 Nodes adapting their rate to the physical link properties LAN switches H04L49/351
• CPC Class Codes: H04L 12/413 with random access, e.g. carrier-sense multiple-access with collision detection [CSMA-CD]
• CPC Class Codes: Y02D 30/50 in wire-line communication networks, e.g. low power modes or reduced link rate

Abstract

Aspects of a method and system for reducing transceiver power via a variable number of channels are provided. In this regard, utilization and/or availability of network and/or device resources may be determined and a configuration of channels utilized for transmitting data may be determined based on the determined utilization and/or availability of resources. Accordingly, the number of channels over which data is communicated may be altered based on determined thresholds for the utilization and/or availability of resources. Moreover, the configuration of channels utilized for communicating data may be dynamically altered by monitoring changes to the utilization and/or availability of resources. For example, the number of channels may be altered based on available bandwidth on one or more channels, based on capacity and/or available space of one or more buffers, and/or based on available power or desired power consumption of a transmitter.

Claims

1. A method for communicating in a network, the method comprising:

performing by one or more circuits, one or more processors, or a combination of one or more circuits and one or more processors in an Ethernet device;

determining one or both of;

utilization of resources that enable said Ethernet device to transmit, utilizing Ethernet physical layer standards, Ethernet frames over a cable comprising a plurality of physical channels; and

availability of resources that enable said Ethernet device to transmit utilizing Ethernet physical layer standards, Ethernet frames over a cable comprising a plurality of physical channels; and

configuring said Ethernet device to transmit, utilizing Ethernet physical layer standards, said Ethernet frames via one or more of said plurality of physical channels of said cable;

varying how many of said plurality of physical channels of said cable are utilized for transmitting said Ethernet frames based on one or both of;

said determined utilization of said resources; and

said determined availability of said resources;

wherein the varying is based on one or more of a packet error rate, and a bit error rate of traffic received via said cable.

2. The method according to claim 1, comprising how many of said plurality of physical channels are utilized for transmitting said Ethernet frames utilizing said Ethernet physical layer standards when one or both of said utilization of said resources and said availability of said resources is below a threshold.

3. The method according to claim 1, comprising increasing how many of said plurality of physical channels are utilized for transmitting said Ethernet frames utilizing said Ethernet physical layer standards when one or both of said utilization of said resources and/or said availability of said resources is above a threshold.

4. The method according to claim 1, wherein said resources comprise network resources and device resources.

5. The method according to claim 1, wherein said plurality of physical layer channels comprises a corresponding plurality of twisted pairs of said cable, and there is a one-to-one correspondence between said plurality of twisted pairs and said plurality of physical channels.

6. The method according to claim 1, wherein the varying is based on bandwidth available on said cable.

7. The method according to claim 1, wherein the varying is based on a capacity of one or more buffers utilized by said Ethernet device to store said Ethernet frames.

8. The method according to claim 1, wherein the varying is based on utilization and/or availability of power.

9. The method according to claim 1, comprising dynamically varying how many of said plurality of physical channels are utilized for transmitting said Ethernet frames based on dynamic changes to one or both of said utilization of said resources and said availability of said resources.

10. A non-transitory machine-readable storage having stored thereon, a computer program having at least one code section for communicating in a network, the at least one code section being executable by a machine for causing the machine to perform steps comprising:

determining one or both of;

utilization of resources that enable an Ethernet device to transmit Ethernet frames, utilizing Ethernet physical layer standards, over a cable comprising a plurality of channels; and

availability of resources that enable said Ethernet device to transmit Ethernet frames, utilizing Ethernet physical layer standards, over a cable comprising a plurality of physical channels; and

configuring said Ethernet device to transmit, utilizing Ethernet physical layer standards, said Ethernet frames via one or more of said plurality of physical channels of said cable;

varying how many of said plurality of physical channels of said cable are utilized for transmitting said Ethernet frames based on one or both of;

said determined utilization of said resources; and

said determined availability of said resources;

wherein the varying is based on one or more of a packet error rate, and a bit error rate of traffic received via said cable.

11. The non-transitory machine-readable storage according to claim 10, wherein said at least one code section comprises code for reducing how many of said plurality of physical channels utilized are for transmitting said Ethernet frames utilizing said Ethernet physical layer standards when one or both of said utilization of said resources and/or said availability of said resources is below a threshold.

12. The non-transitory machine-readable storage according to claim 10, wherein said at least one code section comprises code for increasing how many of said plurality of physical channels utilized are for transmitting said Ethernet frames utilizing said Ethernet physical layer standards when one or both of said utilization of said resources and/or said availability of said resources is below a threshold.

13. The non-transitory machine-readable storage according to claim 12, wherein said resources comprise network resources and device resources.

14. The non-transitory machine-readable storage according to claim 13, wherein said Ethernet transmitter communicates at data rates greater than or equal to 1 Gigabit per second.

15. The non-transitory machine-readable storage according to claim 10, wherein the varying is based on bandwidth available on said cable.

16. The non-transitory machine-readable storage according to claim 10, wherein the varying is based on a capacity of one or more buffers utilized by said Ethernet device to store said Ethernet frames.

17. The non-transitory machine-readable storage according to claim 10, wherein the varying is based on utilization and/or availability of power.

18. The non-transitory machine-readable storage according to claim 10, wherein said at least one code section comprises code for dynamically varying how many of said plurality of physical channels are utilized for transmitting said Ethernet frames utilizing said Ethernet physical layer standards based on dynamic changes to one or both of said utilization of said resources and/or said availability of said resources.

19. A system for communicating in a network, the system comprising:

one or more circuits, one or more processors, or a combination of one or more circuits and one or more processors of an Ethernet device, said one or more circuits, one or more processors, or combination of one or more circuits and one or more processors being operable to;

determine one or both of;

utilization of resources that enable said Ethernet device to transmit, utilizing Ethernet physical layer standards, Ethernet frames over a cable comprising a plurality of physical channels; and

availability of resources that enable said Ethernet device to transmit, utilizing Ethernet physical layer standards, Ethernet frames over a cable comprising a plurality of physical channels; and

configure said Ethernet device to transmit, utilizing Ethernet physical layer standards, said Ethernet frames via one or more of said plurality of physical channels of said cable;

vary how many of said plurality of physical channels of said cable are utilized for transmitting said Ethernet frames based on one or both of;

said determined utilization of said resources; and

said determined availability of said resources;

wherein the varying is based on one or more of a packet error rate, and a bit error rate of traffic received via said cable.

20. The system according to claim 19, wherein said one or more circuits, one or more processors, or a combination of one or more circuits and one or more processors are operable to reduce how many of said plurality of physical channels are utilized for transmitting said Ethernet frames utilizing said Ethernet physical layer standards when one or both of said utilization of said resources and/or said utilization and/or availability of said resources is below a threshold.

21. The system according to claim 19, wherein said one or more circuits, one or more processors, or a combination of one or more circuits and one or more processors are operable to increase how many of said plurality of physical channels are utilized for transmitting said Ethernet frames utilizing said Ethernet physical layer standards when one or both of said utilization of said resources and/or said utilization and/or availability of said resources is above a threshold.

22. The system according to claim 19, wherein said resources comprise network resources and device resources.

23. The system according to claim 19, wherein said plurality of physical layer channels comprises a corresponding plurality of twisted pairs of said cable, and there is a one-to-one correspondence between said plurality of twisted pairs and said plurality of physical channels.

24. The system according to claim 19, wherein said one or more circuits, one or more processors, and/or combination of one or more circuits and one or more processors are operable to vary how many of said plurality of physical channels are utilized for transmitting said Ethernet frames utilizing said Ethernet physical layer standards based on bandwidth available on said cable.

25. The system according to claim 19, wherein said one or more circuits, one or more processors, and/or combination of one or more circuits and one or more processors are operable to vary how many of said plurality of physical channels are utilized for transmitting said Ethernet frames utilizing said Ethernet physical layer standards based on a capacity of one or more buffers utilized by said Ethernet device to store said Ethernet frames.

26. The system according to claim 19, wherein said one or more circuits, one or more processors, and/or combination of one or more circuits and one or more processors are operable to vary how many of said plurality of physical channels are utilized for transmitting said Ethernet frames utilizing said Ethernet physical layer standards based on utilization and/or availability of power.

27. The system according to claim 19, wherein said one or more circuits, one or more processors, and/or combination of one or more circuits and one or more processors are operable to vary how many of said plurality of physical channels are utilized for transmitting said Ethernet frames based on dynamic changes to one or both of said utilization of said resources and/or said availability of said resources.