Patent ID: 9531457
Filing Date: 2016-12-27
CPC Classification: H04B,H04L,H04W

Claim Text:
1. A cellular communication system supporting device-to-device (D2D) communication, the system comprising: a transmitting D2D mobile device; a receiving D2D mobile device wirelessly connected to the transmitting D2D mobile device through a D2D transmission channel; a proximate receiving mobile device wirelessly connected to the transmitting D2D mobile device through an interference channel; and a base station configured to transmit pre-coding Multiple Input Multiple Output (MIMO) parameters to the transmitting D2D mobile device over a downlink cellular channel defined by a communication specification for downlink transmission, the transmitting D2D mobile device configured to apply the pre-coding MIMO parameters to a D2D transmission signal transmitted from the D2D mobile device, the pre-coding MIMO parameters based on channel parameters indicative of channel characteristics of at least the interface channel and determined to facilitate interference management of interference at the proximate receiving mobile device due to the transmission signal, wherein the proximate receiving device is configured to determine the channel parameters by measuring a reference signal transmitted from the transmitting D2D mobile device and the base station is configured to receive the channel parameters through a defined cellular uplink channel defined by the communication specification for uplink communication from mobile wireless devices to base stations from the proximate receiving device.