# US 2019/0174567 A1 · Communication device, communication method, and program

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- Number: US 2019/0174567 A1
- Document ID: US20190174567A1
- Status: Published application
- Kind: A1
- Application number: 16/314,671
- Filed: 2017-06-29
- Published: 2019-06-06
- Earliest claimed: 2016-08-08
- Assignees: Sony Corporation
- Applicants: Sony Corporation
- Inventors: Naoki KUSASHIMA
- Web page: https://patentgrep.com/patent/US20190174567A1

## CPC

- H04L 5/0092: {Indication of how the channel is divided}
- H04W 76/15: Setup of multiple wireless link connections
- H04L 5/0012: {Hopping in multicarrier systems}
- H04L 5/0037: {Inter-user or inter-terminal allocation}
- H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 5/0069: {Allocation based on distance or geographical location}
- H04W 72/20: Control channels or signalling for resource management
- H04L 5/005: {of common pilots, i.e. pilots destined for multiple users or terminals}
- H04W 72/044: based on the type of the allocated resource
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A communication device includes: a communication unit configured to perform wireless communication; and a control unit configured to 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. The control unit allocates a first control channel to be commonly transmitted to the plurality of terminal devices 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 control unit 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.

## Claims

### Claim 1

A communication device comprising:
a communication unit configured to perform wireless communication; and
a control unit configured to 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 control unit allocates a first control channel to be commonly transmitted to the plurality of terminal devices to a first region overlapping between the respective channels of the plurality of terminal devices in a region in which the resources are allocated, and
the control unit 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.

### Claim 2 (depends on 1)

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.

### Claim 3 (depends on 1)

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.

### Claim 4 (depends on 3)

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.

### Claim 5 (depends on 1)

The communication device according to claim 1,
wherein the control unit 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 control unit 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.

### Claim 6 (depends on 5)

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.

### Claim 7 (depends on 5)

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.

### Claim 8 (depends on 5)

The communication device according to claim 5, comprising:
a notification unit configured to notify the terminal device of information regarding the allocation of the first logical control channel elements and the second logical control channel elements.

### Claim 9 (depends on 1)

The communication device according to claim 1,
wherein the control unit directly allocates the first control channel to at least a part of the first region, and
the control unit directly allocates the second control channel to at least a part of the second region.

### Claim 10 (depends on 1)

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.

### Claim 11 (depends on 1)

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.

### Claim 12 (depends on 1)

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.

### Claim 13 (depends on 12)

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.

### Claim 14 (depends on 1)

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

### Claim 15

A communication device comprising:
a communication unit configured to perform wireless communication; and
an acquisition unit configured to 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, from the base station,
wherein a first control channel commonly transmitted to the plurality of terminal devices is 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, and
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.

### Claim 16 (depends on 15)

The communication device according to claim 15, wherein the acquisition unit acquires information regarding the resources on a basis of a detection result of a predetermined reference signal.

### Claim 17 (depends on 15)

The communication device according to claim 15, wherein the acquisition unit acquires info' cation regarding the resources on a basis of a detection result of a sub carrier with which no signal is transmitted.

### Claim 18 (depends on 15)

The communication device according to claim 15, wherein the acquisition unit acquires information regarding the second control channel via the first control channel.

### Claim 19

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 to be commonly transmitted to the plurality of terminal devices is 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, and
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.

### Claim 20

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 transmitted to the plurality of terminal devices is 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, and
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.

### Claim 21

A program causing a computer 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 a first control channel to be commonly transmitted to the plurality of terminal devices is 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, and
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.

### Claim 22

A program causing a computer 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, from the base station,
wherein a first control channel commonly transmitted to the plurality of terminal devices is 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, and
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.
