The residuals between the outputs of the estimated SPM and the RSRP measurements are then calculated. Signal propagation modelling is performed based on the assumptions that a base station is in each VL and the RSRP measurements are obtained from the corresponding base station. In the proposed technique, multiple Virtual Locations (VLs) for a base station are set within the service area. To this end, this paper proposes a technique for estimating the SPM and the location of the base station at the same time using location-based Reference Signal Received Power (RSRP) information acquired in a limited area. % 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.In the Long Term Evolution (LTE) system, the Signal Propagation Model (SPM) and the location information of the base stations are required for positioning a smartphone. 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.

Rsrp cell signal