发明授权
US08582425B1 Systems and methods for cancelling crosstalk in satellite access devices
有权
用于消除卫星接入设备串扰的系统和方法
- 专利标题: Systems and methods for cancelling crosstalk in satellite access devices
- 专利标题(中): 用于消除卫星接入设备串扰的系统和方法
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申请号: US13016680申请日: 2011-01-28
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公开(公告)号: US08582425B1公开(公告)日: 2013-11-12
- 发明人: Michael D. Turner , Arlynn Wayne Wilson , Fred Chu
- 申请人: Michael D. Turner , Arlynn Wayne Wilson , Fred Chu
- 申请人地址: US AL Huntsville
- 专利权人: ADTRAN, Inc.
- 当前专利权人: ADTRAN, Inc.
- 当前专利权人地址: US AL Huntsville
- 代理机构: Maynard Cooper & Gale, P.C.
- 代理商 Jon E. Holland
- 主分类号: G01R31/08
- IPC分类号: G01R31/08
摘要:
The present disclosure generally pertains to systems and methods for cancelling crosstalk in satellite access devices, such as DSLAMs. In one exemplary embodiment, a satellite DSLAM is configured to employ a vectored DSL modulation format, such as vectored VDSL, on both a customer premises (CP) side of the DSLAM and a network side of the DSLAM. For at least one tone communicated by the DSLAM, the DSLAM is configured to maintain a set of coefficients indicative of crosstalk contributions from interferers on both sides of the DSLAM. Based on such coefficients, the DSLAM is configured to cancel crosstalk that couples from one side of the DSLAM to the other.
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