Note that Power parametrs are expressed in dBm, Quality parameters in dB Although signal strength may appear to be adequate, throughput speeds may vary due to dependencies on cellular tower loads.

There is no black/white answer to what constitutes a successful connection.Measured or reported values vary by modem, carrier, and network environment.Both Signal Strength and Signal Quality must be considered for successful cellular data connection.RSSI - Received Signal Strength Indication (signal power) ( dBm) (2G, 3G and LTE).SINR - Signal-to-Interference-plus-Noise Ratio (signal quality) ( dB) (LTE only).

EC/IO - D ownlink carrier-to-interference ratio (signal quality) ( dB) (2G, 3G & LTE).

The other values to take in account are described in other related articles: Important note: measurements like RSCP, RSRP and RSRQ do not incorporate all of the relevant factors to describe the quality of the connection.

Physical barriers (mountains, buildings, trains, etc.).

Signal going through a cellular repeater.

There are many different factors that influence signal strength and quality, including but not limited to: On the opposite side, professionals with a good understanding of this ratios are able for example, to correctly assess the RF links, and also to perform more extensive optimizations, obtaining the best possible performance of the system. This article talks about another magnitude, equally important: the RSRP/RSRP (bm) & RSRQ (dB), which impacts strenght and quality of signal.Īlthough this ratios are of fundamental importance to any cellular system, they are not well understood by many professionals. The Signal Strength is a very important and essential measure for any technology (GSM, CDMA, UMTS, LTE, etc.). This article explains how to interpret some of them : RSCP, RSRP and RSRQ. ) display some parameters to help optimizing 2G/3G/4G connexions. This article applies only for all devices > 3G (Not 2G).Īll devices (smartfones, 4G routers.

Rsrp cell signal