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Encapsulation and decapsulation method of physical layer frame in EOC (Ethernet over Coax) network

A technology of physical layer frame and encapsulation method, applied in the direction of transmission system, electrical components, etc., can solve the problem of physical layer data transmission waste and other problems, and achieve the effect of simple realization

Inactive Publication Date: 2013-11-06
高通企业管理(上海)有限公司
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Problems solved by technology

[0006] There is a disadvantage in the above method, because each Ethernet frame is repackaged into a physical layer frame, and the physical layer channel information included in the frame header and / or frame tail of each physical layer frame is repeated, which causes Waste of physical layer data transmission

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  • Encapsulation and decapsulation method of physical layer frame in EOC (Ethernet over Coax) network
  • Encapsulation and decapsulation method of physical layer frame in EOC (Ethernet over Coax) network
  • Encapsulation and decapsulation method of physical layer frame in EOC (Ethernet over Coax) network

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Embodiment Construction

[0020] To improve the method for encapsulating physical layer frames at the physical layer of the terminal equipment in the existing EOC network, the physical layer may encapsulate all Ethernet frames in a period into one physical layer frame. see figure 2 , the specific method is to use all Ethernet frames in a period as the data part of the physical layer frame, add the frame header of the physical layer frame before the data part, and / or add the frame tail of the physical layer frame after the data part . The frame header and / or frame trailer include physical layer channel information, so that all Ethernet frames within a period can share the physical layer channel information. The corresponding decapsulation method of the physical layer frame is that the physical layer of the receiver terminal equipment in the EOC network extracts the data part of the physical layer frame, and restores one or more Ethernet frames.

[0021] The "one period" refers to a downlink period or...

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Abstract

The invention discloses an encapsulation method of a physical layer frame in an EOC (Ethernet over Coax) network, which comprises the following steps of: (1) structuring an IDLE frame by a data link layer, wherein the IDLE frame is an Ethernet frame; and (2) encapsulating all the Ethernet frames in a time interval into a physical layer frame by a physical layer, and forwarding all the Ethernet frames in a time interval to the physical layer by the data link layer; when the data link layer has a data ethernet frame to be forwarded, forwarding the data Ethernet frame to the physical layer; and when the data link layer has no data Ethernet frame to be forwarded, forwarding the IDLE frame to the physical layer. The invention also discloses a corresponding decapsulation method of the physical layer frame, which comprises the following steps of: (1) partially extracting the data of each physical layer frame by the physical layer, restoring one or more Ethernet frames; and (2) judging and distinguishing the IDLE frame and the data Ethernet frame by the physical layer. The invention can improve the bandwidth efficiency of the physical layer and solve the problem of the interruption of the data Ethernet frame.

Description

technical field [0001] The invention relates to a data structure encapsulation and decapsulation method in an EOC network. Background technique [0002] The radio and television network was originally used to transmit one-way cable television signals. In order to make full use of the resources of the radio and television network, the radio and television system gradually transforms the unidirectional cable television network into two directions, so that it can transmit both unidirectional cable television signals and bidirectional data signals. [0003] At present, the backbone network of the radio and television system has already realized the optical fiber, and only the cable coaxial cable is still within one kilometer from the user. In the case that the cost of fiber-to-the-home is still too high, in order to save costs, it is necessary to transmit network signals on existing wired coaxial cables. [0004] EOC (Ethernet over COAX, Ethernet based on coaxial cable transmi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
Inventor 高庆峰刘梅苍宋永明李珂
Owner 高通企业管理(上海)有限公司
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