DEVICE AND METHOD

• US 20170201888A1
• Filed: 06/22/2015
• Published: 07/13/2017
• Est. Priority Date: 08/29/2014
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: TAKANO, Hiroaki
• Granted Patent: US 10,694,391 B2
• Time in Patent Office: Days
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 74/0816 with collision avoidance
• CPC Class Codes: H04W 84/042 Public Land Mobile systems, e.g. cellular systems
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

[Object] To make it possible to use a frequency band shared by a cellular system and a wireless LAN in the cellular system more flexibly.

[Solution] Provided is a device including a carrier sense unit configured to perform carrier sense for predetermined radio resources among radio resources of a frequency band shared by a cellular system and a wireless local area network (LAN) and a first control unit configured to control wireless communication of a base station of the cellular system in the frequency band in a manner that no signal is transmitted through the predetermined radio resources among the radio resources of the frequency band, and a signal is transmitted through radio resources other than the predetermined radio resources.

Claims

1. A device, comprising:

a carrier sense unit configured to perform carrier sense for predetermined radio resources among radio resources of a frequency band shared by a cellular system and a wireless local area network (LAN); and

a first control unit configured to control wireless communication of a base station of the cellular system in the frequency band in a manner that no signal is transmitted through the predetermined radio resources among the radio resources of the frequency band, and a signal is transmitted through radio resources other than the predetermined radio resources.

2. The device according to claim 1,

wherein the predetermined radio resources are radio resources of a partial band which is a part of the frequency band.

3. The device according to claim 2,

wherein the partial band is a fixed band that does not vary periodically.

4. The device according to claim 2,

wherein the partial band is a band that varies periodically.

5. The device according to claim 4,

wherein the partial band is a band that varies periodically according to a predetermined pattern.

6. The device according to claim 2,

wherein the other radio resources include radio resources of another partial band which is a part of the frequency band.

7. The device according to claim 2,

wherein the predetermined radio resources are radio resources of two or more partial bands which are parts of the frequency band.

8. The device according to claim 1,

wherein the first control unit controls the wireless communication of the base station in the frequency band according to a result of the carrier sense.

9. The device according to claim 1, further comprising:

a second control unit configured to give a notification indicating a timing at which the base station ends the wireless communication using the frequency band to one or more other base stations.

10. The device according to claim 9,

wherein each of the one or more other base stations is a base station near the base station.

11. The device according to claim 9,

wherein the one or more other base stations include a base station of another cellular system different from the cellular system.

12. The device according to claim 11,

wherein the cellular system is a system of a first operator, and the other cellular system is a system of a second operator different from the first operator.

13. The device according to claim 1,

wherein the first control unit ends the wireless communication of the base station in the frequency band according to a timing at which another base station ends the wireless communication using the frequency band.

14. The device according to claim 1,

wherein the frequency band is a channel of the wireless LAN.

15. The device according to claim 1,

wherein the device is the base station, a base station device for the base station, or a module for the base station device.

16. A method, comprising:

performing, by a processor, carrier sense for predetermined radio resources among radio resources of a frequency band shared by a cellular system and a wireless local area network (LAN); and

controlling, by the processor, wireless communication of a base station of the cellular system in the frequency band in a manner that no signal is transmitted through the predetermined radio resources among the radio resources of the frequency band, and a signal is transmitted through radio resources other than the predetermined radio resources.