Patent ID: 9414428
Filing Date: 2016-08-09
CPC Classification: H04L,H04W

Claim Text:
1. A method in a device-to-device (D2D) enabled user equipment of a communication system, the D2D enabled user equipment supporting D2D communication with another D2D enabled user equipment, the communication system comprising a base station serving one or more cellular user equipment unable to support D2D communication, and wherein the D2D enabled user equipment and the cellular user equipment share the same communication resources, the method comprising: receiving, from the base station, configuration parameters comprising information on a reference signal pattern for use by the D2D enabled user equipment; and transmitting, based on the configuration parameters, cellular reference signals, enabling the cellular user equipment to measure and report, to the base station, channel information on a channel from the D2D enabled user equipment to the cellular user equipment; wherein the configuration parameters comprise information on a reference signal pattern used by the base station, and wherein the D2D user equipment transmits the cellular reference signals in lieu of the base station.