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Communication terminal device and communication system

A communication terminal and communication system technology, which is applied in the field of communication terminal devices and communication systems, and can solve problems such as the inability to establish millimeter wave communication between terminals, large propagation loss of millimeter wave communication, and reduced communication speed.

Active Publication Date: 2021-03-09
MURATA MFG CO LTD
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  • Summary
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  • Claims
  • Application Information

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Problems solved by technology

[0005] Since millimeter wave communication has a large propagation loss and narrow directivity, for example, when a portable information communication terminal device is placed in a handbag or purse, the strength of the received signal may decrease and millimeter wave communication between terminals may not be established. When a good communication status cannot be maintained due to a decrease in communication speed, etc.

Method used

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  • Communication terminal device and communication system
  • Communication terminal device and communication system
  • Communication terminal device and communication system

Examples

Experimental program
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Embodiment approach 1

[0026] figure 1 It is a schematic diagram showing a schematic configuration of a communication terminal device and a communication system according to Embodiment 1. Such as figure 1 As shown, the communication system according to this embodiment includes a first communication terminal device 1 , a second communication terminal device 2 , and a third communication terminal device 3 .

[0027] figure 1 The shown solid arrows indicate, for example, millimeter wave communication paths in the 60 GHz band such as WiGig (Wireless Gigabit: registered trademark). figure 1 The shown dotted arrows indicate, for example, microwave communication paths in the 2.4 GHz band such as Wi-Fi (registered trademark) and Bluetooth (registered trademark). also, figure 1 The dashed-line arrow direction shown indicates the transmission direction of the first received signal strength SGST1 (described later) in the present disclosure. The microwave communication path and transmission direction are n...

Embodiment approach 2

[0104] Figure 7 It is a flowchart of millimeter wave communication path selection in the communication system according to Embodiment 2. In addition, the schematic configuration of the communication terminal device and the communication system, the method of each communication terminal device, the method of the antenna for millimeter-wave band communication, and the flow chart of obtaining the received signal strength of the millimeter-wave communication of the communication terminal device are the same as those in the first embodiment, Therefore, description is omitted.

[0105] In this embodiment, when the second received signal strength SGST2 is greater than or equal to the first received signal strength SGST1 or when the second received signal strength SGST2 is greater than or equal to the third received signal strength SGST3, the second communication terminal device 2 In the case where the second received signal strength SGST2 is lower than the first received signal str...

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Abstract

Provided are a communication terminal device and a communication system which are capable of maintaining millimeter wave communication between terminals satisfactorily. The communication terminal device is a communication terminal device capable of realizing at least millimeter wave communication and microwave communication, and has a relay function for relaying between a first communication terminal device and a second communication terminal device by millimeter wave communication.

Description

technical field [0001] The present invention relates to a communication terminal device and a communication system. Background technique [0002] In recent years, with the popularization of portable information communication terminal devices such as smartphones and tablet PCs, for example, real image information and virtual information related to the image information are superimposed on a head-mounted display (HMD: Head Mounted Display), enhancing Utilization of an augmented reality (AR: Augmented Reality) function for a realistic perceptual experience is expanding. As such a communication terminal for realizing the AR function (hereinafter also referred to as "AR terminal"), in addition to the above-mentioned HMD, for example, a glasses-type communication device is disclosed (for example, Patent Document 1). [0003] In order to realize the AR function, it is necessary to frequently send and receive huge amounts of information such as moving image information between term...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0456
CPCH04B7/0456H04B7/15528H04B17/345H04B17/23H04B17/26H04B17/27H04W4/80H04B7/15H04B17/318
Inventor 水沼隆贤田中聪山本靖久板桥明子
Owner MURATA MFG CO LTD
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