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Energy efficient network communication device and method

A technology of network communication devices and functions, which is applied in data exchange details, data switching current source, branch remote connection/disconnection, etc., can solve the problems of not supporting energy-saving Ethernet network specifications, circuit complexity and high power consumption

Inactive Publication Date: 2014-05-21
REALTEK SEMICON CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, U.S. Patent No. US7835389B2 proposes an architecture that conforms to the 1000BASE-T specification and uses only one pair of wires or two pairs of wires for transmission. The data transmission volume of this architecture is higher than that of traditional 100BASE-X-compliant devices, but the circuit complexity And power consumption is relatively high, and does not support the aforementioned energy-efficient Ethernet specification, that is, it cannot enter the aforementioned low-power idle mode to turn off the power of the physical layer circuit to further save power consumption

Method used

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  • Energy efficient network communication device and method
  • Energy efficient network communication device and method
  • Energy efficient network communication device and method

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Embodiment Construction

[0089] The present invention claims the priority of the Taiwan invention patent application (application number: 101141481) of "Ethernet communication device and method with energy-saving function".

[0090] The technical terms in the following explanations refer to customary terms in the technical field. If some terms are explained or defined in this manual, the explanations or definitions of these terms shall prevail. In addition, on the premise that implementation is possible, the meaning of the relative relationship between objects or events described in this specification may include direct or indirect relationship. The so-called "indirect" refers to the existence of intermediate objects or physical spaces between objects, or Refers to the existence of intermediate events or time intervals between events. Furthermore, the following content is about network communication, and the technologies or principles known in the art will not be described in detail unless they involv...

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Abstract

The present invention discloses an energy efficient network communication device comprising: a media-access-controller for outputting a transmission-end low power idle (LPI) indication and receiving a reception-end LPI indication; a media-independent-interface for generating a transmission-end LPI signal according to the transmission-end LPI indication, and generating the reception-end LPI indication according to a reception-end LPI signal; and a physical-layer-circuit, coupled to several pairs of transmission lines, for converting the transmission-end LPI signal into a transmission signal to send it to a reception end for requesting an LPI mode and receiving a reception signal from the reception end to convert it into the reception-end LPI signal. Said physical-layer-circuit uses some of the several pairs of transmission lines for transmission and reception when keeping the other pairs of transmission lines unused to save power.

Description

technical field [0001] The invention relates to a network communication device and a network communication method, in particular to a network communication device and a network communication method with energy-saving functions. Background technique [0002] A traditional network device (such as an Ethernet device conforming to the 1000BASE-T specification) needs to continue to send a specific idle pattern (Idle Pattern) to maintain the connection even if it is in an idle state without transmitting or receiving after the connection is established. Wire. However, even in the idle state, the power consumption of the network device is only slightly lower than in a normal state. Therefore, in order to further save power consumption, IEEE has formulated the Energy Efficient Ethernet (EEE) specification, which allows network devices to enter a low power idle (Low Power Idle, LPI) mode from the aforementioned idle mode, In the low-power idle mode, the power of the physical layer c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/10H04L12/12
Inventor 曾达钦郭协星黄亮维刘庆昌
Owner REALTEK SEMICON CORP
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