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Detecting Intermodulation In Broadband Communication Affecting Receiver Sensitivity

一种无源互调、接收频率的技术，应用在无源互调领域，能够解决昂贵、耗费时间和资源等问题

Active Publication Date: 2015-03-25
NOKIA NETWORKS OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this is time and resource consuming, especially when aging of components results in slowly degraded PIM performance of the site
[0017] Therefore, currently known technical solutions are expensive in terms of additional equipment (CAPEX, capital expenditure) and labor (OPEX, operational expenditure)

Method used

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  • Detecting Intermodulation In Broadband Communication Affecting Receiver Sensitivity
  • Detecting Intermodulation In Broadband Communication Affecting Receiver Sensitivity
  • Detecting Intermodulation In Broadband Communication Affecting Receiver Sensitivity

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Embodiment Construction

[0058] In the following, embodiments of the present invention are described by way of general and specific examples of embodiments, wherein the features of the embodiments can be freely combined with each other unless otherwise stated. It should be understood, however, that the description is given by way of example only, and that the described embodiments are in no way construed as limiting the invention.

[0059] In view of the problems described above, the idea of ​​the present invention is to detect passive intermodulation (IM) frequency terms in the uplink connection and to eliminate their effects.

[0060]According to an embodiment of the invention, it is proposed to find where crosstalk occurs, with the intention of eliminating one or more defects in the connection or cable connection between the base station and the antenna.

[0061] Namely, it is proposed to directly use the BTS radio resources to identify the location of the passive IM in the antenna network. The kn...

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PUM

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Abstract

The present invention provides methods, apparatuses and a program relating to detecting passive intermodulation in broadband communication. The present invention includes transmitting, at a base station, a first signal at a first centre frequency and a second signal at a second centre frequency with a predetermined transmit power, capturing, at the base station, received signal at a reception frequency, obtaining, at the base station, a delay between the transmitted signal and a passive intermodulation caused received signal.

Description

Technical field [0001] The present invention involves detecting the passive interoperability in broadband communication.In particular, the present invention involves the method, device, and procedures for detecting the passive interoperability in broadband communication.If only interoperability is involved in the subsequent chapters, the interoperability caused by the passive device is also called PIM. Background technique [0002] In the broadband FDD BTS (frequently divided dual -work base receipt and receiving letter) receiving machine architecture, interoperability components / distortion are the main attention, and the performance of Weihai receiver can be received. [0003] The mutual adjustment component (PIM) can fall into its own receiving frequency band and reduce the performance of the receiver.Mutual transfer depends on network performance, equipment and materials, transmission power, and modulation and bandwidth.The mutual adjustment characteristics are changed durin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/29
CPCH04B17/104H04B17/17H04B17/19H04L5/143H04W24/10H04L41/0677
Inventor M. 弗莱舍尔M. 克隆瓦尔德T. 克林克J. 黑尔曼E. 克尼希
Owner NOKIA NETWORKS OY
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