![]() The red part is the resource elements in which reference signal is being transmitted. Mapping of downlink reference signals (normal cyclic prefix))įollowing is an example of one downlink radio frame. Note : R0 is the Cell Specific Reference Signal for Antenna Port 0 and R1 is the Cell Specific Reference signal for Antenna Port 1 (Refer to 36.211 Figure 6.10.1.2-1. If the UE can reliably detect that R1 is available it may use R1 in addition to R0 to determine RSRP. For RSRP determination the cell-specific reference signals R0 according TS 36.211 shall be used. Reference signal received power (RSRP), is defined as the linear average over the power contributions (in ) of the resource elements that carry cell-specific reference signals within the considered measurement frequency bandwidth. The formal definition of RSRP in 3GPP 36.214 is as follows : You can think of this as the one similar to CPICH RSCP in WCDMA. This is the most important item UE has to measure for cell selection, reselection and handover. RSRP is the linear average of reference singal power (in Watts) accorss the specified bandwidth (in number of REs).
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