Communication control device and communication control method for controlling frequency channel sharing and handover arrangements between primary system and secondary system

Abstract

[Object] To enable the wireless communication that is being performed already to be continued in the secondary system. [Solution] Provided is a communication control device including: a recognizing unit configured to recognize a handover of a wireless communication device, the handover enabling the wireless communication device to communicate wirelessly through a frequency channel for a primary system in a secondary system that secondarily utilizes the frequency channel; and a control unit configured to control the handover of the wireless communication device.

1 . A communication control device comprising:
 a recognizing unit configured to recognize a handover of a wireless communication device, the handover enabling the wireless communication device to communicate wirelessly through a frequency channel for a primary system in a secondary system that secondarily utilizes the frequency channel; and   a control unit configured to control the handover of the wireless communication device.   
     
     
         2 . The communication control device according to  claim 1 , wherein
 the secondary system includes one or more communication control nodes that communicate wirelessly through the frequency channel,   the handover is a handover from an original communication control node that communicates wirelessly with the wireless communication device to one communication control node that satisfies a predetermined condition among the one or more communication control nodes, and   the predetermined condition includes being able to utilize the frequency channel.   
     
     
         3 . The communication control device according to  claim 2 , wherein
 the control of the handover includes a control of forwarding communication data addressed to the wireless communication device from the original communication control node to the one communication control node.   
     
     
         4 . The communication control device according to  claim 2 , wherein
 the recognizing unit recognizes the handover by recognizing at least one communication control node that satisfies the predetermined condition among the one or more communication control nodes.   
     
     
         5 . The communication control device according to  claim 2 , wherein
 the original communication control node is a communication control node included in another system different from the secondary system.   
     
     
         6 . The communication control device according to  claim 5 , wherein
 the other system different from the secondary system is another secondary system that is not the secondary system.   
     
     
         7 . The communication control device according to  claim 5 , wherein
 the other system different from the secondary system is the primary system.   
     
     
         8 . The communication control device according to  claim 2 , wherein
 the original communication control node is another communication control node among the one or more communication control nodes included in the secondary system.   
     
     
         9 . The communication control device according to  claim 1 , wherein
 the secondary system secondarily utilizes two or more frequency channels, and   the handover is a handover from an original frequency channel through which the wireless communication device communicates wirelessly among the two or more frequency channels to another frequency channel among the two or more frequency channels.   
     
     
         10 . The communication control device according to  claim 9 , wherein
 the recognizing unit recognizes the handover by recognizing at least one frequency channel other than the original frequency channel among the two or more frequency channels.   
     
     
         11 . The communication control device according to  claim 1 , wherein
 the control of the handover includes deciding an execution of the handover of the wireless communication device.   
     
     
         12 . The communication control device according to  claim 1 , wherein
 in the secondary system, a process for enabling wireless communication through the frequency channel by the wireless communication device is executed, before the wireless communication device starts wireless communication through the frequency channel, and   the process is executed at a time of the handover.   
     
     
         13 . The communication control device according to  claim 12 , wherein
 the control of the handover includes controlling a start of the process executed at the time of the handover.   
     
     
         14 . The communication control device according to  claim 12 , wherein
 the process includes making a request for wireless communication through the frequency channel by the wireless communication device.   
     
     
         15 . The communication control device according to  claim 14 , wherein
 the request is performed instead by a device other than the wireless communication device, when executed at the time of the handover.   
     
     
         16 . The communication control device according to  claim 1 , wherein
 the communication control device is a control node different from the wireless communication device.   
     
     
         17 . The communication control device according to  claim 16 , wherein
 the control of the handover includes notifying the wireless communication device of the handover.   
     
     
         18 . The communication control device according to  claim 1 , wherein
 the communication control device is the wireless communication device.   
     
     
         19 . The communication control device according to  claim 1 , wherein
 the secondary system secondarily utilizes the frequency channel by utilizing the frequency channel within a period when the frequency channel for the primary system is not utilized for the primary system.   
     
     
         20 . A communication control method comprising:
 recognizing a handover of a wireless communication device, the handover enabling the wireless communication device to communicate wirelessly through a frequency channel for a primary system in a secondary system that secondarily utilizes the frequency channel; and   controlling the handover of the wireless communication device.