Communication device, communication method, and program

1. A communication device comprising:

circuitry configured to

perform wireless communication; and

allocate respective resources for communication with a plurality of terminal devices in which at least any of bandwidths or central frequencies of channels to be used is different,

wherein the circuitry allocates a first control channel and a third control channel to a first region overlapping between the respective channels of the plurality of terminal devices in a region in which the resources are allocated, the first control channel being commonly transmitted to the plurality of terminal devices, the third control channel being individually transmitted to each of the plurality of terminal devices,

wherein the circuitry allocates a second control channel to be individually transmitted to each of the plurality of terminal devices to a second region different from the first region,

wherein the bandwidth of a first band including the first region and the bandwidth of a second band including the second region are different, and

wherein the circuitry is further configured to instruct at least one of the plurality of terminal devices to switch from the first band to the second band via the first control channel or the third control channel.

2. The communication device according to claim 1 , wherein the first region is a region in which a frequency and a time overlap between the respective channels of the plurality of terminal devices.

3. The communication device according to claim 1 , wherein the second region is a region other than the first region in the region in which the resources are allocated to the respective channels of the plurality of terminal devices.

4. The communication device according to claim 3 , wherein the second region is a region of which a position is different from the first region in at least any of a frequency direction or a time direction.

5. The communication device according to claim 1 ,

wherein the circuitry allocates the first control channel to the first region by allocating a series of first logical control channel elements associated with the first control channel to the first region, and

the circuitry allocates the second control channel to the second region by allocating a series of second logical control channel elements associated with the second control channel to the second region.

6. The communication device according to claim 5 wherein the series of first logical control channel elements is sequentially allocated to be separated from a central frequency of a predetermined carrier along a frequency axis while using the central frequency as a base point.

7. The communication device according to claim 5 , wherein the series of first logical control channel elements is sequentially allocated to be separated from a central frequency of the first region along a frequency axis while using the central frequency as a base point.

8. The communication device according to claim 5 , wherein the circuitry notifies:

the terminal device of information regarding the allocation of the first logical control channel elements and the second logical control channel elements.

9. The communication device according to claim 1 ,

wherein the circuitry directly allocates the first control channel to at least a part of the first region, and

the circuitry directly allocates the second control channel to at least a part of the second region.

10. The communication device according to claim 1 , wherein the terminal device sets the first region on a basis of information obtained when a predetermined reference signal is detected, information obtained when predetermined broadcast information is decoded, or information obtained at initial connection.

11. The communication device according to claim 1 , wherein the first region is set in a frequency bandwidth in which a predetermined reference signal commonly received between the plurality of terminal devices is disposed.

12. The communication device according to claim 1 , wherein the second region is set individually for each of the terminal devices or each group of the terminal devices.

13. The communication device according to claim 12 , wherein a search space specific to each of the terminal devices or each group of the terminal devices is disposed in the second region.

14. The communication device according to claim 1 , wherein the circuitry performs control such that information regarding the second control channel is transmitted to the terminal device via the first control channel.

15. The communication device according to claim 1 ,

wherein the first region is set based on information contained in a master information block (MIB), and the second region is set based on a dedicated radio resource control (RRC) message.

16. A communication device comprising:

circuitry configured to

perform wireless communication; and

acquire information regarding respective resources allocated for communication between a base station and a plurality of terminal devices in which at least any of bandwidths or central frequencies of channels to be used is different,

wherein a first control channel and a third control channel are allocated to the first region overlapping between the respective channels of the plurality of terminal devices in a region in which the resources are allocated, the first control channel being commonly transmitted to the plurality of terminal devices, the third control channel being individually transmitted to each of the plurality of terminal devices,

wherein a second control channel individually transmitted to each of the plurality of terminal devices is allocated to a second region different from the first region,

wherein the bandwidth of a first band including the first region and the bandwidth of a second band including the second region are different, and

wherein at least one of the plurality of terminal devices is instructed, by the base station, to switch from the first band to the second band via the first control channel or the third control channel.

17. The communication device according to claim 16 , wherein the circuitry acquires information regarding the resources on a basis of a detection result of a predetermined reference signal.

18. The communication device according to claim 16 , wherein the circuitry acquires information regarding the resources on a basis of a detection result of a sub carrier with which no signal is transmitted.

19. The communication device according to claim 16 , wherein the circuitry acquires information regarding the second control channel via the first control channel.

20. The communication device according to claim 16 ,

wherein the first region is set based on information contained in a master information block (MIB), and the second region is set based on a dedicated radio resource control (RRC) message.

21. A communication method comprising:

performing wireless communication; and

allocating, by a computer, respective resources for communication with a plurality of terminal devices in which at least any of bandwidths or central frequencies of channels to be used is different,

wherein a first control channel and a third control channel are allocated to a first region overlapping between the respective channels of the plurality of terminal devices in a region in which the resources are allocated, the first control channel being commonly transmitted to the plurality of terminal devices, the third control channel being individually transmitted to each of the plurality of terminal devices,

wherein a second control channel to be individually transmitted to each of the plurality of terminal devices is allocated to a second region different from the first region,

wherein the bandwidth of a first band including the first region and the bandwidth of a second band including the second region are different, and

wherein at least one of the plurality of terminal devices is instructed, by the computer, to switch from the first band to the second band via the first control channel or the third control channel.

22. The communication method according to claim 21 ,

wherein the first region is set based on information contained in a master information block (MIB), and the second region is set based on a dedicated radio resource control (RRC) message.

23. A communication method comprising:

performing wireless communication; and

acquiring, by a computer, information regarding respective resources allocated for communication between a base station and a plurality of terminal devices in which at least any of bandwidths or central frequencies of channels to be used is different, from the base station,

wherein a first control channel commonly and a third control channel are allocated to the first region overlapping between the respective channels of the plurality of terminal devices in a region in which the resources are allocated, the first control channel being commonly transmitted to the plurality of terminal devices, the third control channel being individually transmitted to each of the plurality of terminal devices,

wherein a second control channel individually transmitted to each of the plurality of terminal devices is allocated to a second region different from the first region,

wherein the bandwidth of a first band including the first region and the bandwidth of a second band including the second region are different, and

wherein at least one of the plurality of terminal devices is instructed, by the computer, to switch from the first band to the second band via the first control channel or the third control channel.

24. The communication method according to claim 23 ,

wherein the first region is set based on information contained in a master information block (MIB), and the second region is set based on a dedicated radio resource control (RRC) message.

25. A non-transitory computer-readable storage medium including computer executable instructions, wherein the instructions, when executed by a computer, cause the computer to perform a method, the method comprising:

performing wireless communication; and

allocating respective resources for communication with a plurality of terminal devices in which at least any of bandwidths or central frequencies of channels to be used is different,

wherein a first control channel and a third control channel are allocated to a first region overlapping between the respective channels of the plurality of terminal devices in a region in which the resources are allocated, the first control channel being commonly transmitted to the plurality of terminal devices, the third control channel being individually transmitted to each of the plurality of terminal devices,

wherein a second control channel to be individually transmitted to each of the plurality of terminal devices is allocated to a second region different from the first region,

wherein the bandwidth of a first band including the first region and the bandwidth of a second band including the second region are different, and

wherein at least one of the plurality of terminal devices is instructed, by the computer, to switch from the first band to the second band via the first control channel or the third control channel.

26. The non-transitory computer-readable storage medium according to claim 25 ,

wherein the first region is set based on information contained in a master information block (MIB), and the second region is set based on a dedicated radio resource control (RRC) message.

27. A non-transitory computer-readable storage medium including computer executable instructions, wherein the instructions, when executed by a computer, cause the computer to perform a method, the method comprising:

performing wireless communication; and

acquiring information regarding respective resources allocated for communication between a base station and a plurality of terminal devices in which at least any of bandwidths or central frequencies of channels to be used is different, from the base station,

wherein a first control channel and a third control channel are allocated to the first region overlapping between the respective channels of the plurality of terminal devices in a region in which the resources are allocated, the first control channel being commonly transmitted to the plurality of terminal devices, the third control channel being individually transmitted to each of the plurality of terminal devices,

wherein a second control channel individually transmitted to each of the plurality of terminal devices is allocated to a second region different from the first region,

wherein the bandwidth of a first band including the first region and the bandwidth of a second band including the second region are different, and

wherein at least one of the plurality of terminal devices is instructed, by the computer, to switch from the first band to the second band via the first control channel or the third control channel.

28. The non-transitory computer-readable storage medium according to claim 27 ,

wherein the first region is set based on information contained in a master information block (MIB), and the second region is set based on a dedicated radio resource control (RRC) message.