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Wireless communication system

A technology of a wireless communication system and a wireless communication device, applied in the field of wireless relay devices

Inactive Publication Date: 2008-12-03
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the configuration of the above-mentioned prior art, there is a problem that when the host 101 switches its communication partner from the slave 104 to the slave 201, the optical axes of the master 101 and the slave 201 need to be aligned in advance.

Method used

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no. 1 approach

[0164] image 3 It is a block diagram of the wireless communication system according to the first embodiment of the present invention. This wireless communication system includes wireless communication devices 301 , 303 , and 309 , and a wireless relay device 302 that relays communications between these wireless communication devices 301 , 303 , and 309 . The wireless communication devices 301 , 303 , and 309 and the wireless relay device 302 use, for example, electromagnetic waves with high rectilinearity such as millimeter waves as wireless media. Wherein, the wireless communication device 301 has an antenna 312 and has a unique identifier M-A; the wireless communication device 303 has an antenna 313 and has a fixed identifier M-B; the wireless communication device 309 has an antenna 314 and has a unique identifier M-C. As identifiers of the wireless communication devices 301, 303, and 309, for example, MAC addresses and the like can be used. The wireless relay device 302 ...

no. 2 approach

[0212] Figure 11 It is a block diagram of a wireless communication system according to a second embodiment of the present invention. exist Figure 11 in, for image 3 The same symbols are used for the same constituent elements, and descriptions thereof are omitted.

[0213] Figure 11 In this embodiment, the wireless communication system includes a wireless communication device 301a and a wireless relay device 302a. The wireless communication device 301a includes an antenna group including a plurality of antennas, and in addition, a non-directional transmitting and receiving antenna 510. The antenna group including a plurality of antennas specifically includes a plurality of receiving antennas 501 having directivity in a predetermined pattern, 504 and 507, a plurality of transmitting antennas 502, 505 and 508 having a prescribed pattern of directivity. In addition, the wireless relay device 302a not only has image 3 The wireless relay device 302 has the same receiving ...

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Abstract

In a wireless relay apparatus (302) communicating with wireless communication apparatuses (301,303,309), a switching circuit (406) transfers a data packet, which are received by one of antennas (305,307,310), to one of antennas (306,308,311) for transmission. A correspondence table memory (304) stores a correspondence table including the correspondence between the identifiers of the antennas and the identifiers of the wireless communication apparatuses. A wireless relay apparatus control circuit (404) controls, based on the correspondence table, the transferring of the data packet by the switching circuit (406).

Description

technical field [0001] The present invention relates to a wireless communication device for transmitting and receiving communication signals such as packets, a wireless relay device for relaying the communication signals, and a wireless communication system including the wireless communication device and the wireless relay device. Background technique [0002] Conventionally, there is a system using optical communication technology among wireless communication systems requiring communication direction setting (for example, refer to Patent Document 1). [0003] figure 1 The appearance of the optical wireless communication system according to the prior art described in the above-mentioned Patent Document 1 is shown. This optical communication system includes: a master device (hereinafter referred to as "master") 101 and a slave device (hereinafter referred to as "slave") 104, the master 101 is provided with a communication light emitting unit 102 for performing normal optical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/15H04B7/24
CPCH04B7/1555
Inventor 西川良谦崎村俊夫船引诚龙田明浩
Owner PANASONIC CORP