公开(公告)号：WO2016110727A1

公开(公告)日：2016-07-14

申请号：PCT/IB2015/000352

申请日：2015-01-06

Applicant: COMMSCOPE ITALY S.R.L.

Inventor： PATEL, Sammit, A. ,  BUTLER, Ray, K. ,  BRUNNER, John, W. ,  HOU, Xiaohua

IPC: H04B15/04 ,  H04B17/00

CPC classification number: H04B15/04 ,  G01R23/20 ,  H04B1/0092 ,  H04B1/26 ,  H04B17/12 ,  H04B17/16 ,  H04B17/18 ,  H04B17/23 ,  H04B17/373

Abstract: For wireless cellular communications, a "smart" multi-band combiner system has a multi-band combiner and a passive inter-modulation (PIM) detection sub-system. The multi-band combiner combines multiple transmit signals in different downlink frequency bands into a single, multi-band transmit signal for transmission from a cell tower antenna. The PIM detection sub-system characterizes the frequency components in the multi-band transmit signal to predict PIM products and determine if any predicted PIM products might interfere with any receive signals in any uplink frequency bands. If so, the PIM detection sub-system generates a signal indicating the presence of such predicted interfering PIM products, and the system installer and/or the network administrator can take remedial action to prevent the PIM products from interfering with user communications.

Abstract translation: 对于无线蜂窝通信，“智能”多频带组合器系统具有多频带组合器和无源互调（PIM）检测子系统。 多频带组合器将不同下行链路频带中的多个发射信号组合成单个多频带发射信号，以从小区塔天线发射。 PIM检测子系统表征多频带发射信号中的频率分量，以预测PIM产品，并确定任何预测的PIM产品是否可能干扰任何上行链路频带中的任何接收信号。 如果是这样，PIM检测子系统生成指示存在这样的预测干扰PIM产物的信号，并且系统安装者和/或网络管理员可以采取补救措施来防止PIM产品干扰用户通信。