SCHEME FOR BLIND DETECTING TRANSMISSION MODE FOR INTERFERENCE CANCELLATION

摘要

The present disclosure provides a method for canceling interference of a communication device in a cellular communication system. According to the present disclosure, there is provided a method for determining an interference transmission mode (TM) at a communication device in a cellular communication system using a resource element (RE) defined by frequency and time. The method includes the processes of: receiving a signal at two REs corresponding to a continuous sub-carrier, the signal including a serving signal and an interference signal; projecting a vector of the received signal onto M number of projection vectors; determining a TM decision metric by using an actual squared value and an expected squared value of the projection result; and detecting a TM of the interference signal among predetermined TM candidates, wherein the detected TM minimizes the TM decision metric. The predetermined TM candidates include a first TM using a transmit diversity scheme and a second TM with a rank indicator (RI) of 2 using a multiple input multiple output (MIMO) scheme.