JPH0690480A - Radio system - Google Patents
Radio systemInfo
- Publication number
- JPH0690480A JPH0690480A JP26669692A JP26669692A JPH0690480A JP H0690480 A JPH0690480 A JP H0690480A JP 26669692 A JP26669692 A JP 26669692A JP 26669692 A JP26669692 A JP 26669692A JP H0690480 A JPH0690480 A JP H0690480A
- Authority
- JP
- Japan
- Prior art keywords
- base station
- mobile
- mobile station
- direct communication
- mobile stations
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、無線システムに関し、
より詳細には、移動局同士が近接している場合に、移動
局間で直接通信を行い、チャネルの使用効率を図るよう
にした無線システムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless system,
More specifically, the present invention relates to a wireless system in which direct communication is performed between mobile stations when the mobile stations are in close proximity to each other to improve channel usage efficiency.
【０００２】[0002]
【従来の技術】従来の無線システムを図２に基づいて説
明する。図中、４１，５１は、基地局に信号を送信する
ための送信装置、４２，５２は、基地局からの信号を受
信するための受信装置、４３，５３は、送信装置及び受
信装置と移動局の運用者間の信号のやり取りを行う入出
力装置、４４，５４は、前記各装置を制御する制御装
置、６１，６２は、移動体に信号を送信するための送信
装置、６３，６４は、移動局からの信号を受信するため
の受信装置、６５は、移動局からの信号を他の移動局あ
るいは他の基地局に中継し、または他の基地局からの信
号を移動局に中継するための中継装置、６６は、前記送
信装置，受信装置，中継装置の制御を行うための制御装
置である。2. Description of the Related Art A conventional wireless system will be described with reference to FIG. In the figure, 41 and 51 are transmitters for transmitting signals to base stations, 42 and 52 are receivers for receiving signals from base stations, and 43 and 53 are transmitters and receivers and mobile devices. Input / output devices for exchanging signals between operators of stations, 44, 54 are control devices for controlling the respective devices, 61, 62 are transmitting devices for transmitting signals to a moving body, and 63, 64 are A receiving device for receiving a signal from a mobile station, 65 relays a signal from the mobile station to another mobile station or another base station, or relays a signal from another base station to the mobile station A relay device 66 is a control device for controlling the transmitter device, the receiver device, and the relay device.
【０００３】移動局１は、入出力装置４３から入力され
た移動局２に対する信号を、送信装置４１を用いて基地
局に送信する。基地局は、この信号を受信装置６３で受
信し、中継装置６５を介し、送信装置６２を用いて移動
局２に送信する。移動局２は、送信された信号を受信装
置５２で受信し、入出力装置５３から運用者に対して出
力する。移動局２から移動局１への送信も同様に、移動
局２は入出力装置５３から入力された移動局１に対する
信号を、送信装置５１を用いて基地局に送信する。基地
局は、送信された信号を受信装置６４で受信し、中継装
置６５を介して送信装置６１から移動局１へ送信する。
移動局１は、送信された信号を受信装置４２で受信し、
入出力装置４３から運用者に対して出力する。このよう
にして、移動局１と移動局２は、基地局を仲介させて通
信を行う。この間、移動局１の制御装置４４は、送信装
置４１と受信装置４２と入出力装置４３の制御を行う。
移動局２の制御装置５４も同様に送信装置５１と受信装
置５２と入出力装置５３の制御を行う。基地局の制御装
置６６は、送信装置６１，６２，受信装置６３，６４の
制御及び中継装置６５の制御を行う。The mobile station 1 transmits a signal for the mobile station 2 input from the input / output device 43 to the base station using the transmission device 41. The base station receives this signal at the receiving device 63 and transmits it to the mobile station 2 via the relay device 65 and the transmitting device 62. The mobile station 2 receives the transmitted signal with the receiving device 52 and outputs it from the input / output device 53 to the operator. Similarly, when transmitting from the mobile station 2 to the mobile station 1, the mobile station 2 transmits a signal for the mobile station 1 input from the input / output device 53 to the base station using the transmission device 51. The base station receives the transmitted signal at the receiving device 64 and transmits it from the transmitting device 61 to the mobile station 1 via the relay device 65.
The mobile station 1 receives the transmitted signal with the receiving device 42,
Output from the input / output device 43 to the operator. In this way, the mobile station 1 and the mobile station 2 communicate with each other through the base station. During this time, the control device 44 of the mobile station 1 controls the transmission device 41, the reception device 42, and the input / output device 43.
The control device 54 of the mobile station 2 also controls the transmission device 51, the reception device 52, and the input / output device 53 in the same manner. The control device 66 of the base station controls the transmission devices 61 and 62, the reception devices 63 and 64, and controls the relay device 65.
【０００４】[0004]
【発明が解決しようとする課題】前述のように、従来の
無線システムにおいては、同一基地局の管理範囲内の２
つの移動局が相互に通信を行う場合、個々の移動局につ
いて基地局に対しての上りと下りで、複信の場合、２チ
ャネルずつ計４チャネル，単信の場合、１チャネルずつ
計２チャネルを使用する。したがって、その移動局が直
接通信可能なほどに近接している場合でも、基地局経由
で通信を行うために、直接通信を行った場合の倍のチャ
ネルが必要になるという欠点がある。As described above, in the conventional radio system, two radio waves within the management range of the same base station are used.
When two mobile stations communicate with each other, each mobile station goes up and down with respect to the base station. In case of duplex, 2 channels in total, 2 channels in total, in case of simplex, 2 channels in total, 1 channel each. To use. Therefore, even if the mobile station is close enough to allow direct communication, there is a drawback in that in order to perform communication via the base station, twice the number of channels as in direct communication is required.
【０００５】本発明は、このような実情に鑑みてなされ
たもので、移動局と基地局からなる無線システムにおい
て、移動局同士が近接している場合に、移動局間で直接
通信を行うことでチャネル使用効率の向上を図り、かつ
その直接通信時間をタイマで制限することで、直接通信
にかかる基地局の作業を低減するようにした無線システ
ムを提供することを目的としている。The present invention has been made in view of such circumstances, and in a radio system including a mobile station and a base station, when the mobile stations are close to each other, direct communication is performed between the mobile stations. It is an object of the present invention to provide a wireless system in which the work of the base station for direct communication is reduced by improving the channel use efficiency and limiting the direct communication time with a timer.
【０００６】[0006]
【課題を解決するための手段】本発明は、上記目的を達
成するために、基地局および他の移動局へ信号を送信す
るための送信装置と、前記基地局および他の移動局から
の信号を受信するための受信装置と、前記送信装置およ
び受信装置と移動局の運用者間の信号のやり取りを行う
入出力装置と、通信可能時間値の設定を格納しておくた
めの記憶装置と、前記他の移動局との直接通信の時間を
計測するためのタイマと、前記送信装置と受信装置と入
出力装置と記憶装置とタイマとの制御を行うための制御
装置とから成る移動局と、前記移動局へ信号を送信する
ための送信装置と、前記移動局からの信号を受信するた
めの受信装置と、前記送信装置および受信装置間の信号
を中継する中継装置と、前記移動局に設定した通信可能
時間値を格納するための記憶装置と、前記移動局間の直
接通信の時間を推測するためのタイマと、前記送信装置
と受信装置と中継装置とタイマとを制御するための制御
装置とから成る基地局とを有し、移動体間で直接通信が
可能であれば直接通信に切り替え、該直接通信の通信時
間をタイマで制限することを特徴とするものである。In order to achieve the above object, the present invention provides a transmitting device for transmitting a signal to a base station and other mobile stations, and a signal from the base station and other mobile stations. A receiving device for receiving the above, an input / output device for exchanging signals between the transmitting device and the receiving device and an operator of the mobile station, and a storage device for storing the setting of the communicable time value, A mobile station comprising a timer for measuring the time of direct communication with the other mobile station, and a control device for controlling the transmission device, the reception device, the input / output device, the storage device, and the timer, A transmitter for transmitting a signal to the mobile station, a receiver for receiving a signal from the mobile station, a relay device for relaying a signal between the transmitter and the receiver, and the mobile station. Stores the available communication time value Storage device, a timer for estimating the time of direct communication between the mobile stations, and a base station including a control device for controlling the transmitting device, the receiving device, the relay device, and the timer. However, if direct communication is possible between mobile units, the mode is switched to direct communication, and the communication time of the direct communication is limited by a timer.
【０００７】[0007]
【作用】本発明の無線システムは移動局と基地局を有す
る。移動局において、送信装置により基地局及び他の移
動局へ信号を送信し、受信装置により基地局及び他の移
動局からの信号を受信し、入出力装置により前記受信装
置及び受信装置と移動局の運用者間の信号のやり取りを
行い、記憶装置により基地局から設定された情報を格納
し、タイマにより他の移動局との直接通信の時間を計測
する。また、基地局において、送信装置により移動局に
信号を送信し、受信装置により移動局からの信号を受信
し、中継装置により移動局からの通信を他の移動局ある
いは他の基地局に中継し、記憶装置により移動局単位の
設定を格納し、タイマにより移動局の直接通信の終了を
推測する。このようにして、移動局同士が近接している
場合に、移動局間で直接通信を行うので、チャネルの使
用効率の向上が図れる。The radio system of the present invention has a mobile station and a base station. In a mobile station, a transmitter transmits a signal to a base station and another mobile station, a receiver receives a signal from a base station and another mobile station, and an input / output device receives the receiver and the receiver and the mobile station. Signals are exchanged between operators, the information set by the base station is stored in the storage device, and the time of direct communication with other mobile stations is measured by the timer. Further, in the base station, the transmitter transmits a signal to the mobile station, the receiver receives a signal from the mobile station, and the relay device relays the communication from the mobile station to another mobile station or another base station. The storage device stores the setting for each mobile station, and the timer estimates the end of direct communication of the mobile station. In this way, when the mobile stations are in close proximity to each other, direct communication is performed between the mobile stations, so that the channel usage efficiency can be improved.
【０００８】[0008]
【実施例】実施例について、図面を参照して以下に説明
する。図１は、本発明による無線システムの一実施例を
説明するための構成図で、図中、１１，２１は、基地局
及び他の移動局へ信号を送信するための送信装置、１
２，２２は、基地局及び他の移動局からの信号を受信す
るための受信装置、１３，２３は、送信装置及び受信装
置と、移動局の運用者間の信号のやり取りを行う入出力
装置、１４，２４は、基地局から設定された情報を格納
するための記憶装置、１５，２５は、他の移動との直接
通信の時間を計測するタイマ、１６，２６は、前記送信
装置と受信装置と入出力装置と記憶装置とタイマとの制
御を行うための制御装置、３１，３２は、移動局に信号
を送信するための送信装置、３３，３４は、移動局から
の信号を受信するための受信装置、３５は、移動局から
の通信を、他の移動局あるいは他の基地局に中継するた
めの中継装置、３６は、移動局単位の設定を格納するた
めの記憶装置、３７は、移動局の直接通信が終了を推測
するためのタイマ、３８は、前記送信装置と受信装置と
中継装置と記憶装置とタイマとの制御を行うための制御
装置である。Embodiments will be described below with reference to the drawings. FIG. 1 is a configuration diagram for explaining an embodiment of a wireless system according to the present invention. In the figure, reference numerals 11 and 21 denote transmitters for transmitting signals to a base station and other mobile stations, respectively.
2, 22 are receivers for receiving signals from the base station and other mobile stations, 13 and 23 are input / output devices for exchanging signals between the transmitters and receivers and operators of the mobile stations. , 14 and 24 are storage devices for storing information set by the base station, 15 and 25 are timers for measuring the time of direct communication with other movements, and 16 and 26 are reception with the transmission device. Control devices for controlling the device, the input / output device, the storage device, and the timer, 31, 32 are transmitting devices for transmitting signals to the mobile station, and 33, 34 are for receiving signals from the mobile station. Is a relay device for relaying the communication from the mobile station to another mobile station or another base station, 36 is a storage device for storing the setting for each mobile station, and 37 is , A timer for estimating the end of direct communication of mobile stations 38 is a control device for controlling the said transmitter and the receiver and the relay device and the storage device and the timer.
【０００９】基地局に移動局が回線接続後、基地局の制
御装置３８は先ず、送信装置３１を用いて移動局１及び
移動局２に直接通話が可能かどうかの試験指示を送信す
る。移動局１,２の制御装置１６，２６は、受信装置１
２，２２によって試験指示を受信すると、送信装置１
１，２１と受信装置１２，２２を制御して指定チャネル
で交互に送受信を行い、直接通信の可否を試験し、その
結果を送信装置１１，２１を用いて基地局に送信する。
基地局は受信装置３３，３４で結果を受信する。直接通
話が不可能であれば、従来例での動作を同様に、以下の
ように動作する。After the mobile station is connected to the base station, the control device 38 of the base station first uses the transmitter 31 to send a test instruction to the mobile stations 1 and 2 as to whether or not a direct call is possible. The control devices 16 and 26 of the mobile stations 1 and 2 are connected to the receiving device 1
When the test instruction is received by the transmitters 2 and 22, the transmitter 1
1, 21 and the receivers 12, 22 are controlled to alternately transmit and receive on a designated channel to test whether or not direct communication is possible, and the results are transmitted to the base station using the transmitters 11, 21.
The base station receives the result at the receiving devices 33 and 34. If a direct call is impossible, the same operation as in the conventional example is performed as follows.
【００１０】直接通話が不可能なときの動作 移動局１は送信装置１１を、移動体２は送信装置２１を
用いて、それぞれ基地局の受信装置３３，３４に対して
送信する。基地局は受信した信号を、中継装置３５を介
してそれぞれ送信装置３２，３１に回し、移動局の受信
装置２２，２１へ送信する。 Operation when direct call is not possible The mobile station 1 transmits data to the receivers 33 and 34 of the base station using the transmitter 11 and the mobile unit 2 uses the transmitter 21. The base station sends the received signal to the transmitters 32 and 31 via the relay device 35, and transmits them to the receivers 22 and 21 of the mobile station.
【００１１】直接通話が可能なときの動作 基地局は、移動局１及び移動局２に直接通信用のチャネ
ル及び通信可能時間値を、送信装置３１，３２を通じて
設定し、移動局１,２への中継動作を終了する。移動局
は指定されたチャネル上での直接通信を開始する。同時
にタイマを起動し、直接通信時間を計測する。計測した
時間が直接通信開始時に設定された通信可能時間を越え
た場合は、そこで直接通信を終了し、再び基地局に接続
を試みる。 Operation when direct call is possible The base station sets a channel for direct communication and a communicable time value to the mobile station 1 and the mobile station 2 through the transmitters 31 and 32, and sends them to the mobile stations 1 and 2. The relay operation of is ended. The mobile station initiates direct communication on the designated channel. At the same time, the timer is started and the communication time is measured directly. When the measured time exceeds the communicable time set at the start of direct communication, the direct communication is ended there and an attempt is made to connect to the base station again.
【００１２】[0012]
【発明の効果】本発明は、以上説明したように構成され
ているので、以下のような効果を奏する。すなわち、通
信を行う移動局同士が近接している場合に、直接通信を
行うので、基地局を介した場合に比較してチャネルの使
用数が半分ですむという利点がある。また、直接通信の
時間をタイマで制限するので、設定時間が経過すること
で直接通信で使用したチャネルの空きを移動局が報告す
る必要もなく、基地局が監視する必要もなく知ることが
できる。さらに、移動局と基地局とからなる無線システ
ムにおいて、同一セル内の近接した移動局に対して適用
されるので、駅やデパート等、移動局の密度が高い地点
でのチャネルの混雑回避に利用できる。また、直接通信
が可能な移動局が多い場合、基地局側の中継設備の規模
縮小ができる。Since the present invention is constructed as described above, it has the following effects. That is, when mobile stations that perform communication are in close proximity to each other, direct communication is performed, so that there is an advantage in that the number of channels used is half that in the case of using a base station. Also, since the time for direct communication is limited by a timer, it is possible to know when the set time has elapsed without the need for the mobile station to report the vacancy of the channel used for direct communication and for the base station to monitor it. . Furthermore, in a wireless system consisting of mobile stations and base stations, it is applied to nearby mobile stations in the same cell, so it is used to avoid channel congestion at stations with high density of mobile stations, such as department stores. it can. In addition, when there are many mobile stations that can directly communicate with each other, the scale of relay equipment on the base station side can be reduced.
【図１】本発明による無線システムの一実施例を説明す
るための構成図である。FIG. 1 is a configuration diagram for explaining an embodiment of a wireless system according to the present invention.
【図２】従来の無線システムの構成図である。FIG. 2 is a configuration diagram of a conventional wireless system.
１１，２１…移動局の送信装置、１２，２２…移動局の
受信装置、１３，２３…移動局の制御装置、１４，２４
…記憶装置、１５，２５…直接通信時間の計測タイマ、
１６，２６…移動局の制御装置、３１，３２…基地局の
送信装置、３３，３４…基地局の受信装置、３５…中継
装置、３６…基地局の記憶装置、３７…推定タイマ、３
８…基地局の制御装置。11, 21 ... Mobile station transmitting device, 12, 22 ... Mobile station receiving device, 13, 23 ... Mobile station control device, 14, 24
... storage device, 15, 25 ... direct communication time measuring timer,
16, 26 ... Mobile station controller, 31, 32 ... Base station transmitter, 33, 34 ... Base station receiver, 35 ... Relay device, 36 ... Base station storage device, 37 ... Estimating timer, 3
8 ... Base station control device.
Claims (1)
るための送信装置と、前記基地局および他の移動局から
の信号を受信するための受信装置と、前記送信装置およ
び受信装置と移動局の運用者間の信号のやり取りを行う
入出力装置と、通信可能時間値の設定を格納しておくた
めの記憶装置と、前記他の移動局との直接通信の時間を
計測するためのタイマと、前記送信装置と受信装置と入
出力装置と記憶装置とタイマとの制御を行うための制御
装置とから成る移動局と、前記移動局へ信号を送信する
ための送信装置と、前記移動局からの信号を受信するた
めの受信装置と、前記送信装置および受信装置間の信号
を中継する中継装置と、前記移動局に設定した通信可能
時間値を格納するための記憶装置と、前記移動局間の直
接通信の時間を推測するためのタイマと、前記送信装置
と受信装置と中継装置とタイマとを制御するための制御
装置とから成る基地局とを有し、移動体間で直接通信が
可能であれば直接通信に切り替え、該直接通信の通信時
間をタイマで制限することを特徴とする無線システム。1. A transmitter for transmitting signals to a base station and other mobile stations, a receiver for receiving signals from the base station and other mobile stations, and the transmitter and receiver. An input / output device for exchanging signals between mobile station operators, a storage device for storing the setting of the communicable time value, and a time for measuring the time of direct communication with the other mobile station. A mobile station including a timer, the transmitting device, the receiving device, an input / output device, a storage device, and a control device for controlling a timer; a transmitting device for transmitting a signal to the mobile station; A receiving device for receiving a signal from a station, a relay device for relaying a signal between the transmitting device and the receiving device, a storage device for storing a communicable time value set in the mobile station, and the mobile device. Guess the time of direct communication between stations And a base station including a control device for controlling the transmission device, the reception device, the relay device, and the timer, and switches to direct communication if direct communication between mobile units is possible. A wireless system characterized in that the communication time of the direct communication is limited by a timer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26669692A JP2880357B2 (en) | 1992-09-09 | 1992-09-09 | Wireless systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26669692A JP2880357B2 (en) | 1992-09-09 | 1992-09-09 | Wireless systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0690480A true JPH0690480A (en) | 1994-03-29 |
| JP2880357B2 JP2880357B2 (en) | 1999-04-05 |
Family
ID=17434419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26669692A Expired - Lifetime JP2880357B2 (en) | 1992-09-09 | 1992-09-09 | Wireless systems |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2880357B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0726690A2 (en) * | 1995-02-08 | 1996-08-14 | Telia Ab | Procedure to increase the traffic capacity in a wireless communications system |
| EP1089586A2 (en) * | 1999-09-28 | 2001-04-04 | Siemens Information and Communication Networks, Inc. | Dynamic networking between mobile stations in wireless networks |
| EP1168676A1 (en) * | 2000-02-17 | 2002-01-02 | Matsushita Electric Industrial Co., Ltd. | Mobile communication system and mobile communication method |
| WO2003049326A1 (en) * | 2001-12-06 | 2003-06-12 | Fujitsu Limited | Portable terminal having function of detecting approach of person by using proximity wireless communication means, recorded medium used for the same, and server |
| JP2004312639A (en) * | 2003-04-10 | 2004-11-04 | Mitsubishi Electric Corp | Location display system and location display device using the same |
-
1992
- 1992-09-09 JP JP26669692A patent/JP2880357B2/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0726690A2 (en) * | 1995-02-08 | 1996-08-14 | Telia Ab | Procedure to increase the traffic capacity in a wireless communications system |
| EP0726690A3 (en) * | 1995-02-08 | 1999-06-23 | Telia Ab | Procedure to increase the traffic capacity in a wireless communications system |
| EP1089586A2 (en) * | 1999-09-28 | 2001-04-04 | Siemens Information and Communication Networks, Inc. | Dynamic networking between mobile stations in wireless networks |
| EP1089586A3 (en) * | 1999-09-28 | 2001-11-21 | Siemens Information and Communication Networks, Inc. | Dynamic networking between mobile stations in wireless networks |
| US6744750B1 (en) | 1999-09-28 | 2004-06-01 | Siemens Information & Communication Mobile, Llc | Replicating and recombinant networking systems and methods for wireless networks |
| EP1168676A1 (en) * | 2000-02-17 | 2002-01-02 | Matsushita Electric Industrial Co., Ltd. | Mobile communication system and mobile communication method |
| EP1168676A4 (en) * | 2000-02-17 | 2002-11-27 | Matsushita Electric Ind Co Ltd | Mobile communication system and mobile communication method |
| WO2003049326A1 (en) * | 2001-12-06 | 2003-06-12 | Fujitsu Limited | Portable terminal having function of detecting approach of person by using proximity wireless communication means, recorded medium used for the same, and server |
| JP2004312639A (en) * | 2003-04-10 | 2004-11-04 | Mitsubishi Electric Corp | Location display system and location display device using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2880357B2 (en) | 1999-04-05 |
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