A USER EQUIPMENT, A NETWORK NODE, A FIRST AND A SECOND CORE NETWORK NODE, AND METHODS THEREIN FOR ENABLING RADIO ADMISSION CONTROL (RAC) OF DEVICE-TO-DEVICE (D2D) SERVICES

摘要

Embodiments herein relate to apparatuses and methods therein for enabling Radio Admission Control (RAC)of at least one Device-to-Device, D2D, service for a D2D communication between a first user equipment (UE) (121) and a second UE (122) in a radio communications network (100). The first UE (121) is configured to transmit a D2D service request. Then, the first UE (121) is configured to receive a RAC grant message or a RAC reject message in response to the transmitted D2D service request. Embodiments herein also relate to a Radio Access Node (RAN) (110), a method therein, and to Core Network (CN) nodes (131, 132) and methods therein.