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Wireless communication device and wireless communication method

A wireless communication device and a wireless communication technology are applied in the directions of wireless communication, wireless communication service, transmission path separation device, etc., and can solve problems such as delay in the start of wireless communication of wireless LAN.

Inactive Publication Date: 2016-01-27
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the start of wireless LAN communication is delayed due to the monitoring of such radar waves.

Method used

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  • Wireless communication device and wireless communication method
  • Wireless communication device and wireless communication method
  • Wireless communication device and wireless communication method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0031] figure 1 It is a block diagram showing an example of the configuration of the radio communication device 10 according to the first embodiment.

[0032] Such as figure 1 As shown, the wireless communication device 10 includes a first wireless unit 11 , a second wireless unit 12 , a channel switching unit 13 , a radar detection unit 14 , and a control unit 15 . In addition, the radar detection unit 14 is an example of a detection unit.

[0033] In addition, if figure 1 As shown, the wireless communication device 10 includes a first modem unit 16 , a second modem unit 17 , a channel selection unit 18 , a radar detection necessity determination unit 19 , and a channel information storage unit 20 .

[0034] The wireless communication device 10 of the present embodiment including the above components performs wireless communication of a wireless LAN as an example of the first wireless communication system, that is, performs wireless communication based on the IEEE802.11 st...

no. 2 approach

[0143] Next, a second embodiment will be described. In the description of the present embodiment, the same reference numerals as those in the first embodiment are used for components corresponding to the first embodiment, and overlapping descriptions are omitted.

[0144] In the wireless communication device 10 according to the present embodiment, when transitioning to wireless communication using the first wireless unit and the second wireless unit 11 , 12 , the channel set to the first wireless unit 11 may be switched.

[0145] Specifically, the second channel, that is, the communication signal of the radar system may be detected as an undetected channel in the second frequency band by the detection processing of the radar detection unit 14 .

[0146] In this way, when the second channel is detected in the second frequency band, the control unit 15 causes the channel switching unit 13 to switch the channel set to the first wireless unit 11 to the second channel. By switchin...

no. 3 approach

[0155] Next, a third embodiment will be described. In the description of the present embodiment, the same reference numerals as in the first embodiment are used for components corresponding to the first embodiment, and overlapping descriptions are omitted.

[0156] In the wireless communication device 10 of the present embodiment, after switching to the wireless communication of the first channel and the second channel using the first wireless unit and the second wireless unit 11, 12, the radar detection unit 14 performs the communication for the second channel. detection processing. The control unit 15 controls the radar detection unit 14 to perform detection processing.

[0157] Through this detection process for the second channel, a communication signal of the radar system may be detected for the second channel.

[0158] In this way, when a communication signal of the radar system is detected for the second channel, the control unit 15 causes the radar detection unit 14 ...

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PUM

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Abstract

The present invention provides a wireless communication device and a wireless communication method. The wireless communication device includes a first wireless unit, a second wireless unit, a detecting unit and a control unit. For the first wireless unit, a first channel belonging to a first band is set outside a used band of a second wireless communication system in a used band of a first wireless communication system. For the second wireless unit, a channel belonging to a second band is set in the used band of the second wireless communication system. The detecting unit detects a communication signal through the second wireless communication system. The control unit starts wireless communications performed on the first channel. The control unit causes the detecting unit to perform the detection. The control unit sets a channel according to a result of the detection for the second wireless unit. The control unit then shifts to wireless communications performed through the first and second wireless units.

Description

[0001] References to related applications [0002] This application is based on and claims the benefit of priority of Japanese Patent Application No. 2014-141717 for which it applied on July 9, 2014, and uses the whole content here as a reference. technical field [0003] Embodiments of the present invention relate to a wireless communication device and a wireless communication method. Background technique [0004] Among frequency bands that can be used for wireless LANs, there are frequency bands that can be used by wireless communication systems other than wireless LANs. For example, the 5GHz band can also be used in radar communications. [0005] In the wireless communication of the wireless LAN, there is an obligation to avoid interference with radar. Therefore, a function called DFS (Dynamic Frequency Selection, dynamic frequency selection) is installed in the wireless LAN communication device. DFS is a function to dynamically change the channel used in the wireless ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/00H04W16/10
CPCH04W4/00H04W16/10H04L5/001H04W16/14H04W88/06H04W72/04
Inventor 堀崎耕司
Owner KK TOSHIBA