Patent ID: 9219588
Filing Date: 2015-12-22
Classification: H04J,H04L,H04W

Abstract:
1. A radio communication system, comprising: a base station apparatus; and a terminal apparatus, wherein the base station apparatus and the terminal apparatus transmits to or receives from the terminal apparatus and the base station apparatus respectively a radio signal by using a first frequency band and a second frequency band as a transmission frequency or a reception frequency at a time, the base station apparatus includes a transmission unit which transmits a plurality of first synchronization signals or a plurality of first reference signals by using the first frequency band, and a plurality of second synchronization signals or a plurality of second reference signals by using the second frequency band, and the terminal apparatus includes a synchronization control unit which selects at least one synchronization signal out of the plurality of first synchronization signals and the plurality of second synchronization signals, or at least one reference signal out of the plurality of first reference signals and the plurality of second reference signals, transmitted from the base station apparatus by using the first and second frequency bands at a time and performs synchronization control based on the selected at least one synchronization signal or reference signal.