RSRQ (reference signals received quality) measurement: A measurement of the received quality (SNR).RSRP (reference signals received power) measurement: A measurement of the received power level.This message contains a list with the following details, depending on the UE capability, for each cell it detected: The UE performs and collects the necessary measurements, and reports them back using the ECID-ProvideLocationInformation.

Similarly to an OTDOA procedure, a E-CID procedure is initiated through the LPP protocol by the ESMLC, with a ECID-RequestLocationInformation request message. Enhanced cell ID aggregates together some already available measurements, some of them with increased accuracy requirements to improve the positioning accuracy capabilities. The ESMLC estimates the UE position based on this information and its knowledge of the cells positions.Ĭell ID based methods were already possible before rel9.

The enodeB may report extra information to the ESMLC like the angle of arrival. The UE reports to the network ( ESMLC) the serving cell ID, the timing advance (difference between its transmit and receive time) and the IDs, estimated timing and power of the detected neighbor cells.

Enhanced Cell ID, E-CellID, or E-CID is a positioning feature introduced in rel9 E-UTRA ( LTE radio).

5g rsrq