会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 9. 发明授权
    • Method and apparatus for characterizing modulation schemes in an HFC network
    • 用于表征HFC网络中的调制方案的方法和装置
    • US07876697B2
    • 2011-01-25
    • US11613823
    • 2006-12-20
    • Robert J. ThompsonMichael J. CooperCharles S. MooreJohn L. Moran, III
    • Robert J. ThompsonMichael J. CooperCharles S. MooreJohn L. Moran, III
    • H04L12/26
    • H04B10/0775H04B10/079H04L1/0003H04L1/002
    • The available modulation schemes of a network are analyzed to determine which ones contain excessive phase noise or narrowband interference. A network element is selected and assigned to a test channel at a first modulation scheme at a predetermined power level to achieve a predetermined PER. The network element transmits a test signal and the network controller measures the signal to noise ratio (SNR) in the received test signal. If the SNR is not within a predetermined tolerance range of an estimated SNR for the modulation scheme at the predetermined PER, the modulation scheme is determined to have excessive phase noise or narrowband interference. Each available modulation scheme is tested by instructing the network element to transmit the test signal using each modulation scheme and assigning the power level of each modulation scheme. The suitable modulation schemes may be determined.
    • 分析网络的可用调制方案以确定哪些包含过多的相位噪声或窄带干扰。 以预定功率电平选择并以第一调制方案将测试信道分配给测试信道以实现预定的PER。 网络元件发送测试信号,网络控制器测量接收到的测试信号中的信噪比(SNR)。 如果SNR在预定的PER下不在调制方案的估计SNR的预定公差范围内,则调制方案被确定为具有过大的相位噪声或窄带干扰。 每个可用的调制方案通过指示网络单元使用每个调制方案发送测试信号并分配每个调制方案的功率电平来测试。 可以确定合适的调制方案。