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digital Adaptive Notch Filter (dANF)
Methods and technologies that increase range and data handling capacity are critical to carrier growth strategies.Multiple technologies fitted into limited spectrum slot resulting into capacity /data degradation with growth.
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IM products caused by co-location with other carriers and technologies |
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Cross border transmissions from traffic on a competing carrier's network, spurious emissions from FM, |
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Noise |
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Terrestrial microwave |
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Corporate data links |
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are typical sources of dynamic, time varying interference. These types of environments require adaptive interference mitigation techniques. |
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The digital Adaptive Notch Filter (dANF) identifies, prioritizes and suppresses up to three random and dynamic interference signals that are within the receive bands of mobile communication systems. These in-band interference signals are especially prevalent in spread spectrum (CDMA/UMTS/WiFi) mobile systems, and are extremely difficult to control using conventional means.
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Dynamically eliminates in-band interference in CDMA and UMTS networkshnologies |
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Higher data rates ,fewer call drops/ access failures |
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Recovers lost coverage and capacity when interference occurs . |
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Minimizes costly cell splits to recover capacity and coverage. |
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dANF has no impact on system when in-band interference not present |
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Reduces mobile Tx power |
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Decreases noise rise in the system |
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Improves system quality
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