发明授权
US08767521B2 Method and apparatus for crosstalk cancellation during SELT testing
有权
SELT测试期间串扰消除的方法和装置
- 专利标题: Method and apparatus for crosstalk cancellation during SELT testing
- 专利标题(中): SELT测试期间串扰消除的方法和装置
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申请号: US12807524申请日: 2010-09-08
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公开(公告)号: US08767521B2公开(公告)日: 2014-07-01
- 发明人: Shailendra K. Singh , Amitkumar Mahadevan , Laurent F. Alloin
- 申请人: Shailendra K. Singh , Amitkumar Mahadevan , Laurent F. Alloin
- 申请人地址: US CA Fremont
- 专利权人: Ikanos Communications Inc.
- 当前专利权人: Ikanos Communications Inc.
- 当前专利权人地址: US CA Fremont
- 代理机构: Pillsbury Winthrop Shaw Pittman LLP
- 主分类号: H04J1/12
- IPC分类号: H04J1/12
摘要:
A system for performing a single ended line test (SELT) of a selected subscriber line within a bundle of in-service subscriber lines each supporting frequency division multiplexed multi-tone modulated XDSL communications. The system comprises: a crosstalk cancellation module and a SELT module. The crosstalk cancellation module is coupled to the subscriber lines and configured to cancel crosstalk between the selected subscriber line under test and the in-service subscriber lines. The SELT module couples to the crosstalk cancellation module and is configured to coordinate SELT testing with the crosstalk cancellation module to cancel crosstalk between the selected subscriber line and the in-service subscriber lines during testing.