Method for eliminating passive intermodulation interference signal in communication system and network side equipment

A technology for interfering signals and communication systems, which is applied to network-side equipment to eliminate passive intermodulation interference signals in communication systems, and can solve problems such as RRU high complexity, storage unit overhead, and transmission service interruption

Active Publication Date: 2016-10-05
HUAWEI TECH CO LTD
View PDF4 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in multi-sector and multi-antenna scenarios, the impact of inter-PIM interference signals cannot be ignored. In the case of large intermodulation, it may even cause the interruption of the en

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for eliminating passive intermodulation interference signal in communication system and network side equipment
  • Method for eliminating passive intermodulation interference signal in communication system and network side equipment
  • Method for eliminating passive intermodulation interference signal in communication system and network side equipment

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0059] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0060] It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, such as: Global System of Mobile Communication (Global System of Mobile Communication, referred to as "GSM") system, Code Division Multiple Access (Code Division Multiple Access, referred to as "CDMA") system, Wideband Code Division Multiple Access (referred to as "WCDMA") system, General Packet Ra...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention provides a method for eliminating passive intermodulation interference signal in a communication system and network side equipment. The communication system comprises a baseband unit (BBU), a radio remote unit (RRU), and a common public radio interface (CPRI) which is connected to the BBU and the RRU. The method comprises the steps that: the RRU receives an uplink signal which comprises a passive intermodulation (PIM) interference signal; the RRU eliminates the first component of the PIM interference signal; the RRU sends an uplink remaining signal to the BBU through the CPRI, and the uplink remaining signal is an uplink signal with the elimination of the first component; the BBU eliminates the second component of the PIM interference signal comprised in the uplink remaining signal. Through using the RRU and the BBU, the PIM interference signal is eliminated, the complexity and storage unit cost of the RRU can be reduced, the data compression rate of the CPRI is increased, and the performance of the communication system is improved.

Description

technical field [0001] Embodiments of the present invention relate to the communication field, and more specifically, relate to a method and network side equipment for eliminating passive intermodulation interference signals in a communication system. Background technique [0002] In a general wireless communication base station system, the baseband unit (Baseband Unit, referred to as "BBU") is responsible for the calculation of the baseband algorithm, and the baseband data is communicated with the remote radio unit (Remote RadioUnit, referred to as "RRU") interacts, and the RRU transmits the radio frequency signal to the antenna through the feeder. [0003] In a communication system, due to the non-ideal factors of the analog components of the communication system itself (such as cables, duplexers, antenna feeders, etc.), downlink transmission signals will generate additional intermodulation signals. Under certain frequency point configurations, the low-order intermodulati...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04B1/525
Inventor 霍强安德烈·马尔科夫
Owner HUAWEI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap