Patent ID: 8989800
Filing Date: 2015-03-24
Classification: H04W

Abstract:
1. A mobile station apparatus configured to: receive transmission power information of a first base station apparatus to which the mobile station is connected and a second base station apparatus other than the first base station apparatus, and transmission frequency information of reference signal of the second base station apparatus, from said first base station apparatus; switch a reception frequency between transmission frequencies of reference signal of said first base station apparatus and said second base station apparatus, in a transmission period for said first base station apparatus to transmit reference signal; measure a reception power received from said first base station apparatus and said second base station apparatus in said transmission period; determine a propagation loss of a radio wave received from said first base station apparatus and said second base station apparatus based on the reception power measured and transmission power information received; determine a propagation delay difference between the radio wave received from said first base station apparatus and the radio wave received from said second base station apparatus based on said propagation loss; determine a synchronization timing to said second base station apparatus based on synchronization timing to said first base station apparatus and said propagation delay difference.