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Transmission set of multiplexing multiplepath interface in physical layer

A technology of a physical layer interface and a transmission device is applied in the field of multiplexing transmission devices for multiple physical layer interfaces, and achieves the effect of saving logical resources and reducing design difficulty.

Active Publication Date: 2006-02-01
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] What the present invention aims to solve is the problem that the two-way XAUI transmission device must analyze the SPI4 protocol and perform link layer processing in the prior art

Method used

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  • Transmission set of multiplexing multiplepath interface in physical layer
  • Transmission set of multiplexing multiplepath interface in physical layer
  • Transmission set of multiplexing multiplepath interface in physical layer

Examples

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Embodiment Construction

[0048] In the prior art, the most important reason why the SPI4 signal cannot be directly transmitted through the XAUI interface is that the SPI4 signal and the XAUI signal have different bit widths and different clock frequencies. In the present invention, the method to solve this problem is to perform bit width matching and clock frequency matching.

[0049] In the following two embodiments, the transmission signal bit width input to the transmission device of the present invention is m, and the multiplexed physical layer interface includes a transmission interface unit and a reception interface unit, each having K paths, and the bit width of each path is n. The received signal output from the transmission device of the present invention is the same as the transmitted signal. The sending signal and the receiving signal may be one signal, or may include two or more signals, which is no different for the present invention.

[0050] The structure of Embodiment 1 of the multi-...

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Abstract

The transmission set includes interfaces in n bit wide of K routes of sending unit and in n bit wide of K routes of receiving unit, conversion unit for bit wide, distribution unit, merging unit, and reduction unit for bit wide. The conversion unit converts the sending signal in m bit wide to signal in K*n bit wide, which is transferred to distribution unit. The distribution unit sends signal in K*n bit wide through interface of K routes of sending unit respectively. The merging unit merges signals, which are received through interfaces of K routes of receiving unit, into signals in K*n bit wide, which are transferred to reduction unit for bit wide. The reduction unit converts signal in K*n bit wide to the received signal in m bit wide. The invention avoids using physical layer protocol for parsing sending signals and processes in twice by link layer in transport process, saving logic resources and reducing design difficulty.

Description

technical field [0001] The invention relates to high-speed signal transmission in communication and network systems, in particular to a multiplex transmission device for multiple physical layer interfaces of high-speed signals in communication and network systems. Background technique [0002] With the development of network technology, high-speed signal transmission is becoming more and more common in design. The currently used high-speed signal transmission interfaces include SPI4 (SPI Level 4) and XAUI (The Ten GigabitAttachment Unit Interface, 10 Gigabit Additional Unit Interface ) etc. [0003] SPI4 has been adopted as a standard by the Optical Internetworking Forum and is used as a transmission interface between physical layer devices and link layer devices. The SPI4 interface uses LVDS (Low-Voltage Differential Signaling, low-voltage differential level) as the input and output, with 16 data bits and 1 control bit in each direction for sending and receiving, and the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04L29/08
Inventor 袁结全
Owner NEW H3C TECH CO LTD
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