Network control apparatus, communication apparatus, network control method, communication method, communication system, and program
A technique is provided that makes it possible to diversely control a radio network based on status other than that of the radio network. A network control apparatus according to the present invention includes: a first means for acquiring status related to a second network, which is accessed via a first network which wirelessly transfers data; and a second means for controlling at least one base station of the first network based on the status so as to change a relation of connection between the at least one base station and the second network.
1. A network control apparatus for controlling a first network which can be connected to at least one of a plurality of backhaul networks, wherein the first network includes a plurality of base stations, wherein each of the plurality of base stations is configured by a combination of a radio section and a baseband section, the network control apparatus comprising:
a first controller that is configured to acquire information related to a communication load on each of the plurality of backhaul, networks; and
a second controller that is configured to determine whether to install or uninstall a baseband section, depending on the information related to the communication load on each of the plurality of backhaul networks,
wherein, when the communication load of a first backhaul network connected to a first baseband section is higher than the communication load of a backhaul network connected to a second baseband section, the second controller installs the second baseband section connected to the second backhaul network, and
wherein the second controller controls the first network to change a destination baseband section to be connected to a radio section from the first baseband section to the second baseband section.
2. The network control apparatus according to claim 1 , wherein
the first controller acquires the information related to communication loads on different backhaul networks, wherein a first communication load of the first backhaul network is equal to or higher than a predetermined value and a second communication load of the second backhaul network is lower than the predetermined value.
3. The network control apparatus according to claim 1 , wherein the second controller notifies at least one of the radio section and the second baseband sections of source and destination addresses of data communication.
4. A base station included in a first network including a plurality of base stations, wherein the first network is controlled by a network control apparatus, wherein the first network can be connected to at least one of a plurality of backhaul networks, the base station comprising:
a radio section for communicating with a terminal by radio, wherein the radio section is one of a plurality of radio sections included in the first network;
a baseband section for performing baseband processing of a data received from the radio section, wherein the baseband section is a first baseband section of a plurality of baseband sections included in the first network;
an interface that communicates with the network control apparatus, wherein the network control apparatus determines whether to install or uninstall a baseband section for the base station depending on information related to a communication load on each of the plurality of backhaul networks, wherein when the communication load of a first backhaul network connected to the first baseband section is higher than the communication load of a backhaul network connected to a second baseband section, the network control apparatus installs the second baseband section connected to the second backhaul network; and
a communication controller that is configured to change, the first baseband section to the second baseband section according to an instruction received from the network control apparatus via the interface,
wherein the communication controller is configured to control the radio section to change its connection to the first baseband section to the second baseband section based on the instruction received from the network control apparatus.
5. A network control method for controlling a first network which can be connected to at least one of a plurality of backhaul networks, wherein the first network includes a plurality of base stations, wherein each of the plurality of base stations is configured by a combination of a radio section and a baseband section, the method comprising:
acquiring information related to a communication load on each of the plurality of backhaul networks;
determining whether to install or uninstall a baseband section, depending on the information related to the communication load on each of the plurality of backhaul networks;
when the communication load of a first backhaul network connected to a first baseband section is higher than the communication load of a backhaul network connected to a second baseband section, installing the second baseband section connected to the second backhaul network; and
controlling the first network to change a destination baseband section to be connected to a radio section from the first baseband section to the second baseband section.
6. A communication method by a base station included in a first network controlled by a network control apparatus, wherein the first network can be connected to at least one of a plurality of backhaul networks, wherein the base station comprises:
a radio section for communicating with a terminal by radio, wherein the radio second is one of a plurality of radio sections included in the first network; and
a baseband section for performing baseband processing of data received from the radio section, wherein the baseband section is a first baseband section of a plurality of baseband sections included in the first network,
the method comprising:
communicating with the network control apparatus, wherein the network control apparatus determines whether to install or uninstall a baseband section for the base station depending on information related to a communication load on each of the plurality of backhaul networks, wherein when the communication load of a first backhaul network connected to the first baseband section is higher than the communication load of a second backhaul network connected to a second baseband section, the network control apparatus installs the second baseband section connected to the second backhaul network;
changing the first baseband section to the second baseband section according to an instruction received from the network control apparatus via the interface; and
controlling the radio section to change its connection to the first baseband section to the second baseband section based on the instruction received from the network control apparatus.
7. A communication system comprising:
a first network including a plurality of base stations, wherein each of the plurality of base stations is configured by a combination of a radio section and a baseband section;
a plurality of backhaul networks; and
a network control apparatus, which comprises:
a first controller that is configured to acquire information related to a communication load on each of the plurality of backhaul networks; and
a second controller that is configured to determine whether to install or uninstall a baseband section, depending on the information related to the communication load on each of the plurality of backhaul networks,
wherein, when the communication load of a first backhaul network connected to a first baseband section is higher than the communication load of a backhaul network connected to a second baseband section, the second controller installs the second baseband section connected to the second backhaul network, and
wherein the second controller controls the first network to change a destination baseband section to be connected to a radio section from the first baseband section to the second baseband section.