Patent ID: 9210712
Filing Date: 2015-12-08
Classification: H04J,H04L,H04W

Abstract:
1. An apparatus for controlling subcarrier spacing in a system that supports multiple frequency bands, comprising: an interference detecting unit in communication with a subcarrier spacing controlling unit, the interference detecting unit detecting interference which occurs throughout the multiple frequency bands; a system parameter providing unit in communication with the subcarrier spacing controlling unit, the system parameter providing unit providing system parameters associated with the subcarrier spacing regarding the multiple frequency bands to the subcarrier spacing controlling unit; the subcarrier spacing controlling unit controlling the subcarrier spacing in order to reduce the detected interference based on the system parameters, wherein the system parameters include at least one of a radio frequency (RF), a fast fourier transform (FFT) magnitude, and a channel bandwidth information; and the subcarrier spacing controlling unit controlling subcarrier spacing for a first frequency band among the multiple frequency bands in which an influence of the interference is relatively large such that the subcarrier spacing of the first frequency band is different than the subcarrier spacing of the other frequency bands.