Invention Grant
US08238450B2 Dynamic transmitter noise level adjustment for digital subscriber line systems
有权
数字用户线路系统的动态发射机噪声电平调整
- Patent Title: Dynamic transmitter noise level adjustment for digital subscriber line systems
- Patent Title (中): 数字用户线路系统的动态发射机噪声电平调整
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Application No.: US12689875Application Date: 2010-01-19
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Publication No.: US08238450B2Publication Date: 2012-08-07
- Inventor: Sanjay Gupta , Amir H. Fazlollahi , Guozhu Long , Ying Li , Raphael Jean Cendrillon
- Applicant: Sanjay Gupta , Amir H. Fazlollahi , Guozhu Long , Ying Li , Raphael Jean Cendrillon
- Applicant Address: US TX Plano
- Assignee: Futurewei Technologies Inc.
- Current Assignee: Futurewei Technologies Inc.
- Current Assignee Address: US TX Plano
- Agency: Conley Rose, P.C.
- Agent Grant Rodolph; Clint Wilkins
- Main IPC: H04B3/00
- IPC: H04B3/00
Abstract:
An apparatus comprising an artificial noise (AN) controller coupled to a digital subscriber line (DSL) transmitter and configured to adjust an AN level for a signal transmitted by the DSL transmitter, wherein the AN level is adjusted based on an actual signal to noise ratio (SNR) of the signal from the receiver to achieve a desired SNR for the signal. Also disclosed is a method comprising maintaining a data rate in a line at about a desired level by adjusting an AN level in a transmitted signal based on a SNR of a received signal.
Public/Granted literature
- US20100195745A1 Dynamic Transmitter Noise Level Adjustment for Digital Subscriber Line Systems Public/Granted day:2010-08-05
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