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Repeater and follow-up notification method after broadcast communication thereof

A technology of broadcast communication and relay station, which is applied in the field of follow-up notification of broadcast communication, which can solve problems such as inability to receive broadcast communication and inability to notify, and achieve the effect of reducing the number of mobile station devices and reducing the inability to receive broadcast communication

Active Publication Date: 2013-01-16
KOKUSA ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] However, since the relay station device and the mobile station device that has performed direct communication receive the voice notification, if the channel switching instruction signal for broadcast communication is received, the mobile station device that communicates with itself is notified of the notification of the reception. After switching the content of the channel for broadcast communication, since it also enters the state of waiting for transmission and reception under the communication channel for broadcast communication reception, subsequent notification cannot be made
Therefore, there is a problem that the mobile station apparatus that cannot receive the first broadcast communication information (the UI signal in the above example) cannot receive the broadcast communication thereafter.

Method used

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  • Repeater and follow-up notification method after broadcast communication thereof
  • Repeater and follow-up notification method after broadcast communication thereof
  • Repeater and follow-up notification method after broadcast communication thereof

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Embodiment Construction

[0048] Embodiments of the present invention are described with reference to the drawings.

[0049] A relay station device (direct relay terminal station device) according to an embodiment of the present invention is installed in a image 3 (and Figure 6 ) on digital wireless systems identical to those shown in Figure 4 shown in the same automatic relay system used with the Figure 5 The same schematic structure is shown.

[0050] image 3 An example of such a digital wireless communication system is shown.

[0051] The digital wireless system of this example includes a control station device 1 and a plurality of mobile station devices 2a to 2e, 3a to 3c. As the mobile station devices, there are, for example, vehicle-mounted mobile station devices 2a to 2e and portable mobile station devices 3a to 3c.

[0052] The control station device 1 includes a control device 11, a wireless device 12, a transmitting antenna 13, and a receiving antenna 14 constituting the functions ...

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Abstract

A repeater including a first wireless unit that performs transmission and reception using a frequency for communicating with a base station and a second wireless unit that performs transmission and reception using a frequency for communicating with a mobile station performs a follow-up communication after broadcast communication. The repeater causes, while the second wireless unit transmits a broadcast communication signal (TCH (voice data)) to the mobile station, a transmitter (TX) provided on the first wireless unit to regularly transmit a switching signal (UI signal (for designating a direct communication wireless channel, and for setting a direct communication simplex call) for switching the mobile station to a broadcast communication channel.

Description

technical field [0001] The present invention relates to a relay in a wireless communication system, and in particular to a relay station device for performing follow-up communication of broadcast communication and a method for follow-up notification of broadcast communication in the relay station. Background technique [0002] For example, prefectures / cities, towns and villages digital mobile communication system (Digital MobileTelecommunication System for Local Goverment) (for example, refer to ARIB STD-T79, Institutional Juridical Person Radio Wave Industries Association) takes one local government (prefecture or city, town or village) as the basic unit, It consists of control station equipment, base station equipment, fixed station equipment and mobile station equipment, between the console-mobile station (or fixed station), or via the base station or directly between the mobile station (or fixed station)-mobile Communication between stations (or fixed stations). [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04W16/26H04W72/12H04B7/26
CPCH04W4/06H04W88/04H04W84/08
Inventor 绳田光雄
Owner KOKUSA ELECTRIC CO LTD