From the course: 4G LTE: Architecture, Protocols, Call Flows, KPIs, Optimization, Performance Analysis

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LTE quality: Reference signal received quality (RSRQ)

LTE quality: Reference signal received quality (RSRQ)

From the course: 4G LTE: Architecture, Protocols, Call Flows, KPIs, Optimization, Performance Analysis

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LTE quality: Reference signal received quality (RSRQ)

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What is more important for a great phone call? Either it is a strong signal or a clean signal. You can have 5 bars of signal strength, but if the signal is noisy and crowded, your call will still break up. So how do we measure the signal cleanliness? For that we have a key metric which is reference signal received quality. It is the indicator that tells us about quality not just signal strength. Let's dive into what it is and why it matters. So RSRQ is the primary measure of signal quality in cellular network like 4G and 5G. It doesn't measure power directly. Instead RSRQ is the ratio that compares the strength of your desired signal which is RSRP to the total noise and interference in the channel which is RSSI. So the formula for RSRQ is essentially the division of RSRP by RSSI and this calculation reveals how clean your connection is. A high which is less negative RSRQ value is excellent it means the power from your surfing cells reference signal is strong and there is very little…

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