System and method for constructing a carrier to interference matrix based on subscriber calls
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United States of America Patent
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Jul 31, 2012
Grant Date -
N/A
app pub date -
Nov 3, 2004
filing date -
Nov 3, 2004
priority date (Note) -
Expired
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Abstract
A conventional wireless device constantly measures the signal strength of its server base station and the strength of signals from surrounding base stations for handoff purposes. The wireless device transmits this information to its serving base station, which discards the information a short time afterward, following handoff. The present system and method store the formerly discarded information in one of several existing network elements or in a separate computer system. This information is used to generate a carrier to interference ratio, which indicates the level of interference between station pairs, and to also generate a carrier to interference matrix, including identifying potential interference for each station pair. The frequency of occurrences during predetermined desired periods of time and the volume of traffic affected by each level of interference may also be calculated. This provides comprehensive, continuous, real-time information for wireless frequency planning.
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