High performance network over coax (HINOC) based HIMAC frame loopback test method

A loopback test and test mode technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as failure to quickly locate faults

Active Publication Date: 2015-07-22
NO 722 RES INST OF CHINA SHIPBUILDING IND
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Another purpose of the present invention is to solve the technical problems of the prior art that cannot quickly locate faults, etc.; to provide a method capable of rapidly locating fault points on site

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High performance network over coax (HINOC) based HIMAC frame loopback test method
  • High performance network over coax (HINOC) based HIMAC frame loopback test method
  • High performance network over coax (HINOC) based HIMAC frame loopback test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

[0025] The basic implementation mode is: a HINOC-based HIMAC frame loopback test method, which selects and executes the following loopback modes for the near and far end types of the HINOC frame:

[0026] Selection step 1: The active device starts the near-end loopback mode of the HIMAC frame for the near-end of the HIMAC frame, including the following sub-steps:

[0027] Step 1.1, the active device sends a command to start the HIMAC frame near-end loopback test mode to the CPS sublayer of the active device; Step 1.2, after the CPS sublayer receives the command, it enters the self-test mode, and after the delay reaches the set threshold, the group HIMAC frame, the destination ID number and source ID number in the HIMAC frame frame structure are configured to the CPS sublayer through registers, and the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a high performance network over coax (HINOC) based HIMAC frame loopback test method. HINOC is a broadband access solution of achieving high-performance two-way information transmission by means of cable network coaxial cable. The HINOC is composed of an HINOC network bridge and an HINOC modem, and is a star topology network structure. In the HINOC, the coaxial cable can reach 100 meters long. According to the HINOC based HIMAC frame loopback test method, network failure can be fast positioned. HIMAC frame loopback mode is mainly divided into two modes, one is proximal loopback, and the other one is remote loopback. Proximal loopback mode refers to the loopback of a local HIMAC frame, and the output of a central processing system (CPS) sublayer is enabled to be looped back to the input of the CPS sublayer. Remote loopback mode refers to the loopback of the local HIMAC frame at the other end of the network, and the input of the CPS sublayer is enabled to be looped back to the output of the CPS sublayer.

Description

technical field [0001] The invention relates to a HIMAC frame loopback testing method, in particular to a HINOC-based HIMAC frame loopback testing method. Background technique [0002] HINOC is a broadband access solution that utilizes the coaxial cable of the cable TV network to realize high-performance two-way information transmission. HINOC network is composed of HINOC bridge (HB) and HINOC modem (HM), which is a star topology network structure. In the HINOC network, since the coaxial cable can be as long as 100 meters, it is very important to quickly locate the fault when the network fails. Contents of the invention [0003] Another purpose of the present invention is to solve the technical problems in the prior art that faults cannot be quickly located; and to provide a method capable of rapidly locating fault points on site. [0004] Above-mentioned technical problem of the present invention is mainly solved by following technical scheme: [0005] A kind of HINOC-...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityPatents(China)
IPC IPC(8): H04L12/26
Inventor温玉屏许振郭磊李朝阳赵大胜
OwnerNO 722 RES INST OF CHINA SHIPBUILDING IND