METHOD AND APPARATUS FOR DETERMINING LOSSES IN TRANSMISSION PATH Russian patent published in 2021 - IPC H04B17/309 

FIELD: data transmission.

SUBSTANCE: group of inventions relates to the narrowband Internet of Things (NB-IoT) technology. The proposed method for determining losses in the transmission path is applicable to the user equipment (UE). The method specifically comprises the following stages: determining the transmission power of the downlink narrowband reference signal (NRS); determining the measured value of the narrowband reference signal received power (NRSRP); and if the preset filter parameter of a higher layer is not received from the base station, determining the losses in the transmission path between the base station and the UE in accordance with the downlink NRS transmission power and the measured NRSRP value. Due to the use of the actual received power of the downstream NRS measured by means of the physical layer of the UE, determination of the NRSRP can be omitted after filtering at the high layer. As a result, losses in the transmission path can be determined more quickly, the accuracy of such determination can be increased, thus reducing the power consumption in the user equipment.

EFFECT: reducing the load of the base station associated with configuration information, eliminating unrequired repeat data transmission, and reducing the power consumption of the UE in the NB-IoT in the process of determining the transmission power of the UE.

4 cl, 8 dwg