Band control system, band control apparatus and communication apparatus

A band control system which controls a communication band between a plurality of remote radio transceivers configured to transmit/receive radio signals and a plurality of base band units, the band control system comprising:

• a band allocation control unit;
• and
• a synchronization control unit,
• wherein communication between one or more optical network units (ONUs) connected to the remote radio transceivers and an optical line terminal (OLT) is optical communication,
• wherein the remote radio transceivers each perform radio communication with one or more radio terminals, and the base band units are each associated with the one or more remote radio transceivers,
• wherein the base band units each include a radio communication timing calculation circuit configured to calculate a timing at which the one or more remote radio transceivers perform radio communication,
• wherein the band allocation control unit calculates optical communication bands to be obtained according to the timings of the radio communication and allocates the optical communication bands to the one or more ONUs corresponding to the one or more remote radio transceivers, and
• wherein the synchronization control unit performs control in a manner that processing of the plurality of base band units is synchronized with each other.

A band control system which controls a communication band between a plurality of radio transmitting/receiving units connected to one or more radio terminals and a plurality of radio control units corresponding to the plurality of radio transmitting/receiving units, the band control system comprising:

• a band allocation control unit;
• and
• a synchronization control unit,
• wherein the radio control units each include a radio communication timing calculating unit configured to calculate a timing at which the one or more radio terminals perform radio communication,
• wherein the band allocation control unit obtains optical communication bands according to the timings of the radio communication calculated by the radio communication timing calculating units and allocates the optical communication bands to a plurality of slave station apparatuses corresponding to the radio transmitting/receiving units, and
• wherein the synchronization control unit performs control in a manner that synchronization is achieved among the plurality of radio control units.

A band control apparatus which controls a communication band between a plurality of radio transmitting/receiving units connected to one or more radio terminals and a plurality of radio control units corresponding to the plurality of radio transmitting/receiving units, the band control apparatus comprising:

• a band allocation control unit;
• and
• a synchronization control unit,
• wherein the radio control units each include a radio communication timing calculating unit configured to calculate a timing at which the one or more radio terminals perform radio communication,
• wherein the band allocation control unit obtains optical communication bands according to the timings of the radio communication calculated by the radio communication timing calculating units and allocates the optical communication bands to a plurality of slave station apparatuses corresponding to the radio transmitting/receiving units, and
• wherein the synchronization control unit performs control in a manner that synchronization is achieved among the plurality of radio control units.