Patent ID: 9414427
Filing Date: 2016-08-09
CPC Classification: H04W

Claim Text:
1. An operation method of a terminal in a link adaptation transmission method of device-to-device (D2D) communication, comprising: receiving information related to a first transmission through a D2D link from a base station; performing transmission for an opposite terminal using the information related to the first transmission; and determining information related to a second transmission after the transmission based on reception from the opposite terminal, wherein the information related to the first transmission includes information related to a radio resource for a data transmission and information about a valid term of the radio resource for the data transmission, wherein a modulation and coding scheme (MCS) level is changed based on a request by the opposite terminal, wherein, upon receiving a notification of the D2D link at the base station, determining the valid term by the base station, wherein the valid term is based on a term during which the link adaptation transmission is performed through D2D signaling without control of the base station, and wherein, during the valid term of the radio resource for the data transmission, the data transmission through the D2D link is controlled through direct signaling between the terminal and the opposite terminal.