RSRP
Reference Signal Received Power: the average power of resource elements carrying cell-specific or SS/PBCH block reference signals, used for cell selection and handover decisions.
RSRP is the average power of the reference signals (the SSB or CSI-RS resource elements in NR), measured per resource element rather than across the whole channel — which is what makes it a clean, bandwidth-independent gauge of how strong a particular cell is at your location. It is the primary input to cell selection and handover: the UE measures RSRP on its serving cell and neighbours and reports back, and the network decides when to hand you over based largely on those values.
Typical readings run from around -80 dBm right under a site down to roughly -110 dBm or worse near the edge before the link gets shaky. One thing to keep straight: RSRP tells you about strength, not quality. You can have strong RSRP yet poor data performance if interference is high — that situation is what RSRQ and SINR are there to expose, which is why you never diagnose coverage from RSRP alone.
Frequently asked questions
- What's the difference between RSRP and RSRQ?
- RSRP measures the absolute power of the reference signals — how strong a cell is. RSRQ is a ratio that factors in the total received power (including interference and load), so it reflects signal quality, not just strength. A cell can show strong RSRP but poor RSRQ when interference or congestion is high. Engineers look at both: RSRP for coverage, RSRQ for whether that coverage is actually usable.
- What is a good RSRP value?
- Roughly speaking, better than -90 dBm is excellent, -90 to -100 dBm is good, -100 to -110 dBm is fair, and below about -110 dBm the connection starts to struggle. These are rules of thumb — actual usable performance also depends on interference (SINR) and load, so RSRP alone never tells the whole story.
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