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Communication device and method of determining communication method

A communication method and technology for communication devices, which are applied in wireless communication, sustainable communication technology, advanced technology, etc., can solve the problems of increasing the number of wireless ICs and increasing the cost of control devices.

Active Publication Date: 2015-01-28
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, in the prior art described above, the control device needs to include wireless ICs according to the number of communication methods to be handled, so the number of wireless ICs mounted on the control device increases.
Therefore, the commodity cost of the control device increases

Method used

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  • Communication device and method of determining communication method
  • Communication device and method of determining communication method
  • Communication device and method of determining communication method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0055] figure 1 It is a diagram showing a configuration example of a wireless communication network in Embodiment 1 of the present invention. exist figure 1 Among them, the control device 1 communicates with the terminal device 2 and the terminal device 3 respectively according to different communication methods. The control device 1 communicates with the terminal device 2a and the terminal device 2b according to the communication method A. In addition, the control device 1 communicates with the terminal device 3a and the terminal device 3b according to the communication method B.

[0056] The terminal device 2 and the terminal device 3 are, for example, home appliances such as refrigerators and televisions, heat source devices such as IH cookers, or electric devices such as electric vehicles.

[0057] In addition, in figure 1 Among them, the number of terminal devices 2 and 3 communicating with the control device 1 is just an example, and is not limited to this number....

Deformed example 1

[0084] Next, Modification 1 of Embodiment 1 will be described.

[0085] Figure 8 As Modification 1 of Embodiment 1, it is a diagram in which spectrum signals of communication method A and communication method B are marked on the frequency axis. and image 3 The difference is that the repetition bands of the communication method A and the communication method B are different. Specifically, in image 3 In , all frequency bands of the communication method A are included in the frequency bands of the communication method B. On the other hand, if Figure 8 As shown, the difference between Modification 1 and Embodiment 1 is that there is a region where part of the frequency band of communication method A is not included in the frequency band of communication method B ( Figure 8 21c).

[0086] Here, will Figure 8 The unit channel of the communication method A is defined as 20a, and the unit channel of the communication method B is defined as 20b. In addition, a repeated fr...

Deformed example 2

[0099] Next, Modification 2 of Embodiment 1 of the present invention will be described.

[0100] Figure 10 It is a diagram in which spectrum signals of communication method A and communication method B are marked on the frequency axis as Modification 2 of Embodiment 1 of the present invention. and image 3 The difference is that the signal spectrum leaks out of the occupied bandwidth (side lobe).

[0101] Here, will Figure 10 In , the unit channel of communication method A is defined as 83a, and the unit channel of communication method B is defined as 83b. In addition, a frequency band that repeats other than the above-mentioned side lobes is defined as a repeated frequency band 80a, and a frequency band that is not repeated is defined as a non-repeated frequency band 80b.

[0102] Figure 11 It is a flowchart showing the determination process of the communication method of the received data in the second modification of the first embodiment. for with Figure 7 The pa...

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Abstract

In a network that allows coexistence of two or more different communication methods, a wireless control device determines the communication method of a frame sent by a wireless terminal device and enables receiving said frame. When the received signal strength of the received data is detected, the wireless control device determines the received signal strength in non-overlapping frequency bands of the communication methods, and determines the communication method of the received data.

Description

technical field [0001] The present invention relates to a communication device and a communication method determination method for discriminating the communication method of the received data when data of different communication methods is received in a communication network. Background technique [0002] The wireless communication network represented by the IEEE (Institute of Electrical and Electronics Engineers) 802.11 standard and 802.15.4 standard usually includes a wireless communication device as a master machine (hereinafter referred to as a control device) and multiple wireless communication devices as a slave machine ( Hereafter referred to as terminal device). [0003] In such a wireless communication network, for example, in a home network application, there may be a network in which a communication method of the 802.11 standard and a communication method of the 802.15.4 standard coexist. For example, assume that AV (Audio Visual) equipment such as televisions an...

Claims

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Application Information

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IPC IPC(8): H04W88/10
CPCH04W88/10H04W48/16H04W52/0238Y02D30/70H04W40/16H04W24/08
Inventor 浮田阳介林野裕司
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD