Reliable data speeds may be attained, but marginal data with drop-outs is possible. When this value gets close to -100, performance will drop drastically You can find more information on RSRP and RSRQ values in the 4G (LTE) section of the Mobile Signal Strength Recommendations page. strength or RSSI channel LTE RSRP - Reference Signal Received Power. The RSRQ measurement provides additional information when RSRP is not sufficient to make a reliable handover or cell reselection decision. When secondary is in range device is connected to both 4G and 5G simultaneously. RSRQ is a C/I type of measurement and it indicates the quality of the received reference signal. RSRQ – Reference Signal Received Quality: Quality considering also RSSI and the number of used Resource Blocks (N) RSRQ = (N * RSRP) / RSSI measured over the same bandwidth. A minimum of -20 dB SINR (of the S-Synch channel) is needed to detect RSRP/RSRQ. It is the power of the LTE Reference Signals spread over the full bandwidth and narrowband. RSRP – Reference Signal Received Power is an RSSI type of measurement. In the procedure of handover, the LTE specification provides the flexibility of using RSRP, RSRQ, or both. In cellular networks, when a mobile device moves from cell to cell and performs cell selection/reselection and handover, it has to measure the signal strength/quality of the neighbor cells. % plotGrid(GRIDSIZE,CSIRSIND) plots the carrier grid of size GRIDSIZE % by populating the grid with CSI-RS symbols of multiple resources % indicated by a cell array of CSI-RS indices CSIRSIND.Reference Signals Received Power (RSRP) and Reference Signal Received Quality (RSRQ) are key measures of signal level and quality for modern LTE networks. The purposes of these measurements include: For this measurement, CSI-RS transmitted on antenna port 3000 is used.ĬSI-RSRQ (CSI reference signal received quality): CSI-RSRQ is defined as, N * CSI _ RSRP CSI _ RSSI. CSI-RSSI includes the power from sources, such as co-channel serving and non-serving cells, adjacent channel interference, and thermal noise. This measurement is also performed across N number of resource blocks (measurement bandwidth). For this measurement, CSI-RS transmitted on antenna port(s) 3000 or 30 is used.ĬSI-RSSI (CSI received signal strength indicator): CSI-RSSI is defined as the linear average of the total received power observed only in the OFDM symbols, in which CSI-RS is present. This measurement is performed across N number of resource blocks (measurement bandwidth). CSI-RSRP (CSI reference signal received power): CSI-RSRP is defined as the linear average over the power contributions of the resource elements of the antenna ports, which carry CSI-RS configured for RSRP measurements.
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