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what it the functionality of RSSI in LTE?

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what it the functionality of RSSI in LTE?
posted Oct 6, 2013 by Neeraj Mishra

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1 Answer

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RSSI and RSRP are two signal strength measurement techniques for LTE: Following points describes the use of both RSSI and RSRP.

RSSI varies with LTE downlink bandwidth. For example, even if all other factors were equal, VZW 10 MHz LTE bandwidth RSSI would measure 3 dB greater than would Sprint 5 MHz LTE bandwidth RSSI. But that does not actually translate to stronger signal to the end user.

RSSI varies with LTE subcarrier activity -- the greater the data transfer activity, the higher the RSSI. But, again, that does not actually translate to stronger signal to the end user.

RSRP does a better job of measuring signal power from a specific sector while potentially excluding noise and interference from other sectors.

RSRP levels for usable signal typically range from about -75 dBm close in to an LTE cell site to -120 dBm at the edge of LTE coverage.

answer Oct 7, 2013 by Deepankar Dubey
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