WCDMA  -  UMTS  -  GSM  -  EDGE  -  GPRS  -  MMDS  -  WIMAX  -  WI-FI  -  IDEN  -  TDMA  -  CDMA  -  TD-SCDMA  -  PCS  -  3G  -  AWS

 
   
       
 
THE MARKET:

Unprecedented cellular growth and system complexity creates dynamic interference environments for cellular operators. To date, the industry has relied on fixed, high-performance specialty filters to protect cell sites from unwanted in-band interference.  Specialty fixed filters can only effectively mitigate fixed interference types.

ISCO's digital Adaptive Notch Filter®

 
 
THE REALITY:
  • nThe predominance of interference is random and varying in nature
  • It can change by day, time and in amplitude due to changes in topology, loading, site additions and competitive systems.
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  • Eliminates capacity robbing interference from your wireless network
  • §Improves wireless Data and Voice performance & throughput


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INTERFERENCE ISSUES:

  • Self-generated TX inter-modulation that lands in a desired receive band
  • Unwanted interference from cells that border competitive systems
  • Urban noise that is generated from a variety of private data and voice systems prevalent in urban environments
  • Co-located systems that have narrow and wide-band technologies emanating from the same geographic site
  • IM caused by GSM/TDMA in 850 & PCS spectrum
     

White Papers:

An Adaptive Approach to Interference Mitigation

Applications for 900 MHz GSM to UMTS Refarming

Analog Devices - Blackfin® Helps ISCO

 
ISCO’s dANF® is a self-contained adaptive filter module, integrating high-speed DSP core in a powerful Linux-based architecture that run ISCO’s proprietary interference detection algorithms.
 
 
 
  • Fast Scan reacts within milliseconds to protect voice and data uplink traffic from unwanted interference.
  • Can identify and suppress up to three random and dynamic interferers across multiple CDMA/WCDMA channels
  • OEM Agnostic
   
     

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