Base station system, base station control device, base station control method, and base station control program
The present disclosure is a base station system S that connects each of base station functional units that provides each of radio schemes and each of antenna units in each of provision areas via an optical fiber section, the base station system including passive light functional units disposed between each of base station functional units and each of antenna unit and including each downlink signal output port to which each downlink signal wavelength is allocated and each uplink signal output port to which each uplink signal wavelength is allocated and an optical switch disposed between each of the antenna units and the passive light functional units, accommodates some of each of the radio schemes, and switches to which one of the provision areas the some of the radio schemes are provided.
1 . A base station system configured to connect a plurality of base station functional units and a plurality of antenna units disposed in a plurality of provision areas via an optical fiber section, wherein the plurality of base station functional units are configured to provide a plurality of radio schemes, the base station system comprising:
a plurality of passive light functional units disposed between the plurality of base station functional units and the plurality of antenna units, wherein a first passive light functional unit among the plurality of passive light functional units includes a plurality of downlink signal output ports to which a plurality of downlink signal wavelengths are allocated and a plurality of uplink signal output ports to which plurality of uplink signal wavelengths are allocated; and
an optical switch disposed between the plurality of antenna units and the plurality of passive light functional units, configured to accommodate a particular radio scheme among the plurality of radio schemes, and switch to a particular provision area among the plurality of provision areas where the particular radio scheme is provided.
2 . The base station system of claim 1 , comprising a base station control device, the base station control device comprising:
an optical switch switching request unit configured to request the optical switch to switch to the particular provision area among the plurality of provision areas where the particular radio schemes is provided;
an optical switch switching reception unit, configured to be notified by the optical switch that switching has been made to the particular provision area where the particular radio scheme is provided; and
a signal wavelength setting request unit configured to request an antenna unit in the particular provision area where the particular radio scheme is newly provided to set an uplink signal wavelength via a base station functional unit that provides the particular radio scheme.
3 . The base station system of claim 2 , the base station control device further comprising:
a signal wavelength switching request unit configured to request the base station functional unit to switch a downlink signal wavelength, and request the antenna unit in the particular provision area to switch the uplink signal wavelength; and
a signal wavelength switching reception unit configured to be notified of switching of the downlink signal wavelength by the base station functional unit and be notified of switching of the uplink signal wavelength by the antenna unit in the particular provision area, wherein
the optical switch is configured to switch the particular radio scheme among the plurality of radio schemes.
4 . A base station control method performed in a base station system, the method comprising:
requesting a base station control device to switch to a particular provision area where a particular radio scheme is provided;
causing an optical switch to switch to the particular provision area where the particular radio scheme is provided and notifying of the switching;
notifying that the base station control device has switched to the particular provision area where the particular radio scheme is provided;
requesting, by the base station control device via a base station functional unit that provides the particular radio schemes, an antenna unit in the particular provision area where the particular radio scheme is newly provided to set an uplink signal wavelength;
requesting, by the base station functional unit, the antenna unit in the particular provision area to set the uplink signal wavelength;
setting, by the antenna unit in the particular provision area, the uplink signal wavelength and notifying the base station functional unit of the setting;
notifying, by the base station functional unit, the base station control device that the uplink signal wavelength has been set in the particular provision area.
5 . The base station control method of claim 4 , further comprising:
requesting, by the base station control device, to switch a downlink signal wavelength and requesting to switch the uplink signal wavelength;
switching, by the base station functional unit, the downlink signal wavelength and requesting to switch the uplink signal wavelength;
switching, by the antenna unit in the particular provision area, the uplink signal wavelength and notifying the switching;
notifying that the base station functional unit has switched the downlink signal wavelength and notifying that the uplink signal wavelength has been switched; and
being notified of, by the base station control device, switching of the downlink signal wavelength and being notified of switching of the uplink signal wavelength in order, wherein
switching, by the optical switch, to the particular radio scheme.
6 . A non-transitory computer readable medium storing a program in a base station system, wherein execution of the program causes a computer to sequentially execute:
requesting an optical switch to switch to a particular provision area among a plurality of provision areas where a particular radio scheme among a plurality of radio schemes is provided;
being notified by the optical switch that switching has been made to the particular provision area where the particular radio scheme is provided; and
requesting an antenna unit in the particular provision area where the particular radio scheme is newly provided to set an uplink signal wavelength via a base station functional unit that provides the particular radio scheme.
7 . The non-transitory computer readable medium according to claim 6 , wherein execution of the program causes the computer to further execute:
requesting the base station functional unit to switch a downlink signal wavelength, and requesting the antenna unit in the particular provision area to switch the uplink signal wavelength; and
being notified of switching of the downlink signal wavelength by the base station functional unit and being notified of switching of the uplink signal wavelength by the antenna unit in the particular provision area, wherein
switching, by the optical switch, to the particular radio scheme among the plurality of radio schemes.