Patent ID: 7324837

Claim:
A base station apparatus, comprising: a plurality of connectors used for connection to a plurality of antennas respectively; a plurality of transmission/reception circuits performing transmission/reception using said plurality of antennas; and an antenna switching unit provided between said plurality of connectors and said plurality of transmission/reception circuits and modifying a connection relation between said plurality of connectors and said plurality of transmission/reception circuits, to correct an erroneous relationship between said plurality of antennas and said plurality of transmission/reception circuits, wherein said erroneous relationship occurred during installation work of said base station apparatus, wherein said plurality of antennas are divided into a plurality of groups, a number of which is equal to a number of said plurality of transmission/reception circuits, said base station apparatus further comprises a control unit, and when said antenna switching unit is at an initial state, said control unit obtains properties of said plurality of antennas via said plurality of connectors, determines to which of said plurality of groups each of said plurality of antennas should belong, based on said obtained properties, and causes a state of said antenna switching unit to make a transition from said initial state to a use state suitable for use.