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1. (WO2017032490) TELECOMMUNICATIONS APPARATUS AND METHODS FOR ACCESS CONTROL IN D2D COMMUNICATIONS

Pub. No.:    WO/2017/032490    International Application No.:    PCT/EP2016/065309
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Fri Jul 01 01:59:59 CEST 2016
IPC: H04W 16/08
H04W 76/02
H04W 28/02
Applicants: SONY CORPORATION
SONY EUROPE LIMITED
Inventors: KAHTAVA, Jussi Tapani
WAKABAYASHI, Hideji
Title: TELECOMMUNICATIONS APPARATUS AND METHODS FOR ACCESS CONTROL IN D2D COMMUNICATIONS
Abstract:
A terminal device for use in a wireless telecommunications system comprising a plurality of terminal devices operable to communicate with one another in a device-to-device manner, wherein the terminal device comprises a controller unit and a transceiver unit configured to operate together to cause the terminal device to determine a transmission power level to use for device-to-device transmissions from the terminal device to restrict the number of the other terminal devices able to receive the device-to-device transmissions to a restricted subset of the other terminal devices, and to transmit device-to-device communications using the determined transmission power level. The terminal device may determine the transmission power itself or from control signalling reads received from network infrastructure equipment, such as a base station or roadside unit.