JP2004056645A - Broadcast communication system of radio communication system - Google Patents

Broadcast communication system of radio communication system Download PDF

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Publication number
JP2004056645A
JP2004056645A JP2002214076A JP2002214076A JP2004056645A JP 2004056645 A JP2004056645 A JP 2004056645A JP 2002214076 A JP2002214076 A JP 2002214076A JP 2002214076 A JP2002214076 A JP 2002214076A JP 2004056645 A JP2004056645 A JP 2004056645A
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JP
Japan
Prior art keywords
communication
control channel
base station
mobile stations
station
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002214076A
Other languages
Japanese (ja)
Inventor
Shinya Yamamoto
山本　慎也
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Kokusai Electric Inc
Original Assignee
Hitachi Kokusai Electric Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Kokusai Electric Inc filed Critical Hitachi Kokusai Electric Inc
Priority to JP2002214076A priority Critical patent/JP2004056645A/en
Publication of JP2004056645A publication Critical patent/JP2004056645A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a broadcast communication system by which all mobile stations with a mobile station monitoring a control channel of base station communication and a mobile station monitoring a control channel of direct communication between mobile stations can receive broadcast communication transmitted from a control office via a base station. <P>SOLUTION: Before the control office performs the broadcast communication, the base station transmits a control channel switching control signal by using the control channel of the direct communication between the mobile stations, the mobile station monitoring the control channel of the direct communication between the mobile stations having a means for receiving the signal receives the control channel switching control signal and automatically switches the monitored control channel to the control channel of the base station communication. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は無線通信システムにおいて統制局から複数の移動局に対して行う一斉通信の一斉通信方式に関するものである。
【０００２】
【従来の技術】
従来の技術では、統制局が一斉通信を行う場合、基地局は基地局通信の制御チャネルを監視している移動局に対して、前記制御チャネルにて一斉通信呼出信号を送信し、前記移動局は一斉通信を受信する。
【０００３】
【発明が解決しようとする課題】
前述の従来技術では、統制局の一斉通信呼出操作に対して、基地局の制御チャネルにて一斉通信呼出信号を送信しても、移動局間直接通信の制御チャネルを監視している移動局は一斉通信を受信することができず、該移動局が一斉通信を受信するためには、該移動局にて監視する制御チャネルを基地局通信の制御チャネル監視に切り替え操作を行う必要がある。本発明はこの欠点を解決し、基地局通信の制御チャネルを監視している移動局および移動局間直接通信の制御チャネルを監視している移動局とも全ての移動局が、統制局から基地局経由送信される一斉通信を受信できる一斉通信方式の提供を目的とする。
【０００４】
【課題を解決するための手段】
本発明は上記の目的を達成するため、統制局が一斉通信を行う前に、基地局は移動局間直接通信の制御チャネルを用いて制御チャネル切り替え制御信号を送信し、この信号を受信する手段を有する移動局間直接通信の制御チャネルを監視していた移動局は、制御チャネル切り替え制御信号信号を受信し、監視する制御チャネルを基地局通信の制御チャネルに自動的に切り替えるようにするものである。
【０００５】
【発明の実施の形態】
以下、本発明の一実施例を図１のシステム動作シーケンスを示す図によって説明する。また、無線通信システムの一実施例である構成を図２に示す。１は一斉通信の操作を行う統制局で、２は一斉通信を送信する基地局で、３、４は一斉通信の受信対象局である移動局である。
統制局１にて一斉通信呼出操作５を行うと、基地局２は移動局間直接通信の制御チャネルにて制御チャネル切り替え制御信号８を送信し、移動局間直接通信の制御チャネルの監視動作７をしていた移動局４は基地局からの当該制御チャネル切り替え制御信号８を受信し、制御チャネルの監視動作を基地局通信の制御チャネルの監視動作９に自動的に切り替える。
次に、基地局２は基地局通信の制御チャネルにて一斉通信呼出信号１０を送信し、基地局通信の制御チャネルの監視動作６をしていた移動局３、および監視する制御チャネルを基地局通信の制御チャネルに切り替えた移動局４は、基地局から送信された一斉通信呼出信号１０を受信する。
【０００６】
【発明の効果】
本発明により、基地局通信の制御チャネルを監視している移動局および移動局間直接通信の制御チャネルを監視している移動局とも全ての移動局が、統制局からの一斉通信を受信することができる。
【図面の簡単な説明】
【図１】本発明の一実施例のシステム動作シーケンスを示す図
【図２】無線通信システムを示す構成図
【符号の説明】
１：統制局、２：基地局、３、４：移動局、５：一斉通信呼出操作、６：基地局通信の制御チャネル監視動作、７：移動局間直接通信の制御チャネル監視動作、８：制御チャネル切り替え制御信号、９：基地局通信の制御チャネル監視動作、１０：一斉通信呼出信号[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a simultaneous communication method for simultaneous communication performed from a control station to a plurality of mobile stations in a wireless communication system.
[0002]
[Prior art]
In the prior art, when a control station performs broadcast, the base station transmits a broadcast call signal on the control channel to a mobile station monitoring a control channel of base station communication, Receives the broadcast.
[0003]
[Problems to be solved by the invention]
In the prior art described above, in response to the simultaneous paging operation of the control station, even if the paging signal is transmitted on the control channel of the base station, the mobile station monitoring the control channel of the direct communication between the mobile stations is Broadcast communication cannot be received, and in order for the mobile station to receive broadcast communication, it is necessary to switch the control channel monitored by the mobile station to control channel monitoring of base station communication. The present invention solves this drawback, and all the mobile stations monitoring the control channel of the base station communication and the mobile station monitoring the control channel of the direct communication between mobile stations are all controlled by the control station from the base station. It is an object of the present invention to provide a simultaneous communication system capable of receiving a simultaneous communication transmitted via the terminal.
[0004]
[Means for Solving the Problems]
According to the present invention, in order to achieve the above object, before a control station performs simultaneous communication, a base station transmits a control channel switching control signal using a control channel of direct communication between mobile stations, and receives the signal. The mobile station monitoring the control channel for direct communication between mobile stations having a control channel switching control signal signal, and automatically switches the control channel to be monitored to the control channel for base station communication. is there.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to a diagram showing a system operation sequence of FIG. FIG. 2 shows a configuration which is an embodiment of a wireless communication system. Reference numeral 1 denotes a control station that operates broadcast communication, 2 denotes a base station that transmits broadcast communication, and 3 and 4 denote mobile stations that are target stations to receive broadcast communication.
When the control station 1 performs the paging operation 5, the base station 2 transmits a control channel switching control signal 8 on the control channel for direct communication between mobile stations, and monitors the control channel 7 for direct communication between mobile stations. The mobile station 4 that has performed the control channel switching control signal 8 from the base station automatically switches the control channel monitoring operation to the base station communication control channel monitoring operation 9.
Next, the base station 2 transmits a paging call signal 10 on the control channel of the base station communication, and the mobile station 3 that has performed the monitoring operation 6 of the control channel of the base station communication and the base station 2 The mobile station 4 that has switched to the communication control channel receives the broadcast call signal 10 transmitted from the base station.
[0006]
【The invention's effect】
According to the present invention, all of the mobile stations that are monitoring the control channel of the base station communication and the mobile stations that are monitoring the control channel of the direct communication between mobile stations receive the simultaneous communication from the control station. Can be.
[Brief description of the drawings]
FIG. 1 is a diagram showing a system operation sequence according to an embodiment of the present invention. FIG. 2 is a configuration diagram showing a wireless communication system.
1: Control station, 2: Base station, 3, 4: Mobile station, 5: Simultaneous communication call operation, 6: Control channel monitoring operation of base station communication, 7: Control channel monitoring operation of direct communication between mobile stations, 8: Control channel switching control signal, 9: Control channel monitoring operation of base station communication, 10: Simultaneous communication call signal

Claims (1)

無線通信システム全体の通信を統括し且つ各局と災害情報等の伝達を行う統制局と、該統制局と接続して移動局との無線通信あるいは移動局相互間の無線中継を行う基地局と、複数の移動局とを有し、前記基地局と前記移動局間の基地局通信、移動局相互間の基地局通信および移動局間直接通信を行う無線通信システムにおいて、前記統制局から複数の移動局もしくは全移動局に対して一斉通信を行う前に、移動局間直接通信の制御チャネルを監視している移動局を基地局通信の制御チャネルに切り替えてから対象の全ての移動局に対して一斉通信することを特徴とする無線通信システムの一斉通信方式。A control station that supervises communication of the entire wireless communication system and communicates disaster information with each station, and a base station that connects to the control station and performs wireless communication with mobile stations or wireless relay between mobile stations, In a wireless communication system having a plurality of mobile stations and performing base station communication between the base station and the mobile station, base station communication between mobile stations and direct communication between mobile stations, a plurality of mobile stations are controlled from the control station. Before performing simultaneous communication to a station or all mobile stations, switch the mobile station monitoring the control channel for direct communication between mobile stations to the control channel for base station communication, and then A simultaneous communication method for a wireless communication system characterized by simultaneous communication.
JP2002214076A 2002-07-23 2002-07-23 Broadcast communication system of radio communication system Pending JP2004056645A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002214076A JP2004056645A (en) 2002-07-23 2002-07-23 Broadcast communication system of radio communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002214076A JP2004056645A (en) 2002-07-23 2002-07-23 Broadcast communication system of radio communication system

Publications (1)

Publication Number Publication Date
JP2004056645A true JP2004056645A (en) 2004-02-19

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009207135A (en) * 2008-02-01 2009-09-10 Hitachi Kokusai Electric Inc Dedicated channel entry method
WO2010058466A1 (en) * 2008-11-20 2010-05-27 富士通株式会社 Wireless base station, wireless terminal, method for distributing specific information, and method for receiving specific information

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009207135A (en) * 2008-02-01 2009-09-10 Hitachi Kokusai Electric Inc Dedicated channel entry method
WO2010058466A1 (en) * 2008-11-20 2010-05-27 富士通株式会社 Wireless base station, wireless terminal, method for distributing specific information, and method for receiving specific information
US9161194B2 (en) 2008-11-20 2015-10-13 Fujitsu Limited Wireless base station and method for emergency information delivery

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