Communication apparatus, communication method, computer program, and communication system

A technology of a communication device and a communication scheme, applied in the field of computer programs and communication systems, can solve problems such as system throughput reduction, and achieve the effects of increasing throughput and avoiding conflicts

Inactive Publication Date: 2012-01-25
SONY GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the frame transmission operation is stopped unnecessarily regardless of this, the number of communication stations capable of simultaneous communication in the system will be uselessly reduced, causing a reduction in the throughput of the entire system

Method used

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  • Communication apparatus, communication method, computer program, and communication system
  • Communication apparatus, communication method, computer program, and communication system
  • Communication apparatus, communication method, computer program, and communication system

Examples

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Embodiment Construction

[0068] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Meanwhile, examples of the communication scheme of the millimeter wave include the 60 GHz frequency band used in the VHT (Very High Throughput) standard. However, the gist of the present invention is not limited to a specific frequency band.

[0069] figure 1 A configuration example of a millimeter wave wireless communication system according to an embodiment of the present invention is schematically shown. The wireless communication system shown in the figure is composed of a communication device 100 and a communication device 200.

[0070] The communication devices 100 and 200 may perform wireless communication with each other according to a millimeter wave communication scheme. In the millimeter wave communication scheme, since the linear propagation characteristic is strong and the attenuation at the time of reflection is large, it is more preferable to receiv...

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Abstract

A directivity communication using millimeter waves can be achieved, while the number of communication stations that can be allowed to perform communications at the same time can be increased, thereby improving the throughput of the whole system. A communication apparatus establishes a transmission halt interval after storing, as a halt establishment direction, a beam direction in which the reception power exhibits the maximum value when an RTS or CTS addressed to another station is received. During the transmission halt interval, only when the direction of a frame transmission destination is separate from the halt establishment direction, the communication apparatus executes a frame transmission by directing the transmission beam to the frame transmission destination. Any hidden terminal does not unnecessarily halt its frame transmission operation and is not against the intention to request the establishment of the transmission halt interval.

Description

Technical field [0001] The present invention relates to a communication device, a communication method, a computer program, and a communication system that perform wireless communication using, for example, millimeter waves, and more particularly to extending the communication distance of millimeter waves and directing the beam of a directional antenna to the position of the communication partner Communication device, communication method, computer program and communication system. Background technique [0002] Wireless communication called "millimeter wave" communication can use high-frequency electromagnetic waves to achieve higher communication speeds. Examples of main applications of millimeter wave communication include short-range wireless access communication, image transmission systems, simple wireless communication, and automotive collision avoidance radar. In addition, currently, technology development for millimeter wave communication dedicated to use promotion such a...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H04W16/28H04W80/02H04W84/12
CPCH04W64/006H04W28/18H04W76/048H04W74/004H04W16/28H04W74/006H04W74/0808H04W76/28
Inventor森冈裕一
OwnerSONY GRP CORP