Patent ID: 7190952
Filing Date: 2007-03-13
Classification: G06F,H04M,H04W,Y02D

Abstract:
1. A software upgrading method for upgrading software of a base station apparatus in a wireless communication network which includes at least one base station apparatus which communicates with a wireless terminal and a wired communication network and a control device which controls said at least one base station apparatus, said control device having a handover unit for performing handover and communicating with said at least one base station apparatus, wherein a network management device is provided for managing a network including said wireless communication network and managing said control device and said at least one base station apparatus included in said wireless communication network, the method comprising the steps of: selecting one or plural base station apparatuses in which software will be upgraded in accordance with a predetermined rule and creating a base station group by the network management device or the control device by selecting one or plural base station apparatuses having the least call connections or a predetermined number of call connections or fewer from base station apparatuses not belonging to any base station group and creating the base station group including the selected one or plural base station apparatuses; sending software for upgrading and an upgrading request to each base station apparatus of the selected one or plural base station apparatuses belonging to the base station group by the network management device or the control device; receiving the upgrading request and changing a state of a transmission wave being used by the base station apparatus so as to switch the communication path in which communication services are being provided through the base station apparatus to another communication path in which communication services are being provided through another base station apparatus without blackouts by performing handover from the base station apparatus to the another base station apparatus; upgrading software set therein to the received software by the base station apparatus; and returning the state of the transmission wave after software upgrading to its original state by the base station apparatus.