Patent ID: 8204493
Filing Date: 2012-06-19
Classification: G06F,H04W,Y02D

Abstract:
1. A base station apparatus having a plurality of sectors and communicating with a wireless terminal in the sectors and a wired communication network by using a plurality of wireless communication paths having different frequencies, the base station apparatus comprising: an apparatus management portion that constitutes a wireless communication system with other plural base station apparatuses connected to a network management device in the wired communication network, and that manages the entire base station apparatus based on control signals from the network management device; a plurality of signal processing portions for each of the plurality of frequencies; a plurality of antennas for each of the plurality of sectors; and a plurality of sector processing portions for each of the plurality of sectors, wherein each of the sector processing portions comprises: a memory that stores a software for controlling the sector processing portions, and a CPU, wherein when the apparatus management portion receives an upgrading request to upgrade software at a state in which a new software for upgrading has been transferred from the network management device to the base station apparatus, the upgrading request being transmitted from the network management device to plural base station apparatuses which are objects of software upgrading in the wireless communication system, the apparatus management portion: selects one sector among from the plurality of the sectors in an order predetermined in the wireless communication system, controls the sectors which are not selected to prohibit performing a software upgrading processing at the same time, thereafter, reduces transmission power of the plurality of frequencies in the selected sector by controlling the sector processing portion of the selected sector, checks that no calls are connected to the selected sector, and then, upgrades the software of the sector processing portion of the selected sector and controls the transmission power of the plurality of frequencies to original power, thereby, performing the software upgrading in coordination with other base station apparatuses which are objects of the software upgrading in the wireless communication system.