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Crosstalk test approach of second generation ultra-high speed numeral user loop switch-in user

A digital user loop, access user technology, applied in the direction of line transmission monitoring/testing, monitoring/monitoring/testing arrangement, line transmission components, etc., to achieve the effect of cost saving and comprehensive testing

Inactive Publication Date: 2012-09-19
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a crosstalk test method for VDSL2 access users, which is used to solve the problem that there is no relevant test standard to specify the test method for VDSL2 line crosstalk in the prior art

Method used

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  • Crosstalk test approach of second generation ultra-high speed numeral user loop switch-in user
  • Crosstalk test approach of second generation ultra-high speed numeral user loop switch-in user
  • Crosstalk test approach of second generation ultra-high speed numeral user loop switch-in user

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Embodiment Construction

[0035] Aiming at the newly developed VDSL2 technology and the coexistence of VDSL2, ADSL, ADSL2 / 2+, and VDSL for a long time in the future and the defect that there is no relevant test standard at present, the present invention proposes a crosstalk test method for VDSL2 access users, including Mutual crosstalk test between VDSL2 access users and other access users and self-crosstalk test of VDSL2 access users. The present invention can simulate the actual application scene as much as possible without resorting to a test instrument with a high price, so as to achieve a better test effect.

[0036] see figure 1 , this figure is a flow chart of testing the mutual crosstalk between VDSL2 type access users and other types of DSL access users in the same cable bundle in the present invention, and it mainly includes steps:

[0037] Step 10. Connect various types of measured access users in the cable bundle with their corresponding client devices.

[0038] Step 11: Set the line para...

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Abstract

The invention discloses a crosstalk testing method for a second-generation very-high-speed figure subscriber loop to access to a user. The crosstalk testing method comprises a mutual crosstalk test between VDSL2 access users and other access users, and a self crosstalk test of the VDSL2 access users. The invention respectively tests the mutual crosstalk state between the VDSL2 access users and other access users and the self crosstalk state between the VDSL2 access users, under the conditions that the wire length is in short distance, the wire length is in long distance, the self inherent characteristic of the VDSL2 is not opened, and the self inherent characteristic of the VDSL2 is opened. The invention can test the self crosstalk state of the VDSL2 and the mutual crosstalk state of the other various access users without special testing instruments, can better simulate practical application scene, and can achieve the testing effect on the basis of cost conservation.

Description

technical field [0001] The invention relates to a test technology in the field of broadband access, in particular to a crosstalk test method for VDSL2 (Second Generation Very-high-bit-rate Digital Subscriber loop, second generation very high-bit-rate Digital Subscriber loop) access users. Background technique [0002] In recent years, with the rapid development of broadband Internet technology and broadband services, broadband users have gradually shifted from a single application for high-speed Internet access to VoIP (Voice over IP, voice technology based on Internet Protocol), IPTV (Internet Protocol Television, Internet Protocol-based TV technology), visual communication and other comprehensive application development, therefore, higher requirements will be put forward for the access bandwidth. ADSL (Asymmetric Digital Subscriber Line) / ADSL2 / ADSL2+ / VDSL (Very-high-bit-rate Digital Subscriber loop, very high-speed digital subscriber loop) widely used by telecom operators ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B3/46H04M3/30H04B3/462
Inventor 臧美燕
Owner ZTE CORP
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