BASE STATION APPARATUS, INTER-BASE STATION SYNCHRONIZATION METHOD, SYNCHRONIZATION INFORMATION DATA STRUCTURE, AND SYNCHRONIZATION REQUEST DATA STRUCTURE

摘要

A base station apparatus comprises: a transmission unit (27) that transmits, to another base station apparatus via an X2 interface (26), a synchronization request to request an inter-base station synchronization between the local base station apparatus and the other base station apparatus; and a reception unit (28) that receives, from the other base station apparatus via the X2 interface (26), synchronization information related to a synchronization state of the inter-base station synchronization.