FIRST AND SECOND COMMUNICATION DEVICES FOR POWER CONTROL IN GROUPCAST COMMUNICATION

摘要

The invention relates to power control in groupcast communication between a first communication device (100) and a set of second communication devices (300a, 300b,..., 300n). The first communication device (100) obtains received signal qualities from a reporting subset (300a', 300b',..., 300n') in the set of second communication devices (300a, 300b,..., 300n) and determines at least one path loss value for the reporting subset (300a', 300b',..., 300n') based on the one or more obtained received signal qualities. The first communication device (100) may further determine a transmission power value for the groupcast communication based on the at least one path loss value and perform a groupcast communication transmission based on the determined transmission power value. Furthermore, the invention also relates to a second communication device (300), corresponding methods, and a computer program.