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

一种通信装置、通信方案的技术，应用在计算机程序和通信系统领域，能够解决吞吐量降低等问题，达到增大吞吐量、避免冲突、增大数量的效果

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

AI Technical Summary

Problems solved by technology

Actually although the hidden terminal (STA_C) does not interfere with the above data frame, as a result of the reception of the omni-directional CTS, the hidden terminal (STA_C) unnecessarily sets a transmission stop period, with the result that the throughput is lowered

Method used

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

Examples

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Embodiment Construction

[0049] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Meanwhile, examples of communication schemes for millimeter waves 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.

[0050] figure 1 An example of the configuration of a millimeter wave wireless communication system according to an embodiment of the present invention is schematically shown. The wireless communication system shown in this figure is composed of a communication device 100 and a communication device 200 .

[0051] The communication device 100 and the communication device 200 may perform wireless communication with each other according to the millimeter wave communication scheme. In the millimeter wave communication scheme, since straight-line propagation is strong, the attenuation during reflection is large, so radio si...

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Abstract

The throughput of the entire system is improved by increasing the number of communication stations which can communicate at the same time while implementing directional communication by millimeter waves. Beamforming of a transmission beam is performed not only on a data frame but also on a CTS frame. When the direction of a transmission / reception beam of a hidden terminal (STA_C) is different from the direction of a data transmission side (STA_A) with respect to a data reception side (STA_B), the hidden terminal (STA_C) does not receive the CTS, and thus can continue an operation of communicating with a communication partner terminal (STA_D) without setting a transmission stop period.

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, for example, by utilizing millimeter waves, and more particularly, to extending the communication distance of millimeter waves and directing beams of directional antennas to communication counterparts Communication devices, communication methods, computer programs, and communication systems for the location. Background technique [0002] Wireless communication called "millimeter wave" communication enables high communication speeds by utilizing high-frequency electromagnetic waves. Examples of major applications of millimeter wave communication include wireless access communication for short distances, image transmission systems, simplified wireless communication, and vehicle collision avoidance radars. In addition, currently, technological development for millimeter wave communication has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W88/02H04B7/10H04W84/10
CPCH04W16/28
Inventor 森冈裕一
Owner SONY CORP
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