FIRST COMMUNICATION DEVICE, THIRD COMMUNICATION DEVICE, AND METHODS PERFORMED THEREBY TO MONITOR A SECOND COMMUNICATION DEVICE COMPRISED IN A GROUP OF COMMUNICATION DEVICES

摘要

Method performed by a first communication device (111) operating in a wireless communications network (100). The wireless communications network (100) comprises a group of communication devices (110). The first communication device (111) determines (204) that a number of communication devices, comprised in the group of communication devices (110), having reported that data about a position of a second communication device (112) comprised in the group of communication devices (110) has not been received within a time period, is above a threshold. The first communication device (111) then initiates (205) transmitting an indication to at least one receiving device (114), indicating a result of the determination. Also disclosed is a method by a third communication device (113) comprised in the group. The third communication device (113) starts (301) a timer defining the time period and, in the absence of the data received within the period, sends (303) a notification of expiration of the timer.