WO2004062252A1 - Portable terminal connection system and portable terminal connector - Google Patents

Abstract

A portable terminal connection system for providing services of a portable terminal to a user in an area of a facility in which the use or the communication of the portable terminal such as a cellular phone is prohibited. A portable terminal connection device is connected to the portable terminal (for example, a cellular phone) and a private communication network provided in an area prohibiting any use of the portable terminal. The sound signal and the data signal received by the portable terminal from a mobile communication network are given to the portable terminal connection device. A private terminal connection device transmits the signal from the portable terminal to a private-dedicated portable terminal which is serviceable in the area and radio-connected to the private communication network via the private communication network according to a protocol of the private communication network. The sound signal and the data signal transmitted from the private-dedicated portable terminal are received by the portable terminal connection device via the private communication network. The portable terminal connection device transfers the signal from the private-dedicated portable terminal to the portable terminal according to the protocol of the portable terminal. The portable terminal transmits the transferred signal to an other portable terminal, etc. via the mobile communication network.

Description

 Mobile terminal connection system and mobile terminal connection device

 The present invention relates to a mobile terminal connection system and a mobile terminal connection device that provide a user with a service using a mobile terminal in a facility in a facility where use or communication of a mobile terminal such as a mobile phone is prohibited. Background art

 In areas such as hospitals, use of mobile phones is prohibited to prevent medical equipment from malfunctioning due to radio waves output from mobile phones. However, in the current situation where mobile phones are very widespread, it is very inconvenient for mobile phone users to be prohibited from using mobile phones and not be able to receive services using mobile phones. Therefore, there is a need to be able to receive services using mobile phones even in areas where mobile phones are prohibited.

 As a conventional technique that enables services to be provided by a mobile phone within a mobile phone use prohibition area, there is a “mobile phone interrogation system” described in Japanese Patent Application Laid-Open No. H11-141352. .

In this mobile phone relay system, a mobile phone proxy radio station is provided, to which a private branch exchange provided in advance in the mobile phone use prohibition area is connected. When entering the area, the owner deposits the mobile phone at a designated storage location and registers the telephone number with the proxy radio station. When an incoming call is addressed to the registered mobile phone, the proxy radio station announces the incoming call by handing over the premises broadcast or handing over the premises terminal to the owner. The owner can then call the nearest extension telephone or handed over premises terminal. Make a call with. However, in this mobile phone relay system, when entering a mobile phone prohibited area, the phone number must be registered with a proxy radio station. In addition, every time registration is performed, it must be checked whether the registration has been completed successfully. In addition, when a call is sent from the inside of the area to the outside using a local terminal, the call must be transmitted via a proxy radio station or via a public network. In order to collect from the user the charges required for the call, the billing process must be performed by the private branch exchange.

 Also, as a conventional technology, there is “Cellular phone connection device, and outgoing and incoming connection methods of a cellular phone connection device” described in Japanese Patent No. 311185.

 In this specification, a mobile phone connection device for connecting a mobile phone is disclosed. This mobile phone connection device is connected to the local electronic exchange, and the communication between the mobile phone and the external terminal is connected to the internal terminal by the local electronic exchange to perform communication. However, this mobile phone connection device is intended for connection of only audio signals. As a result, communication is limited to areas that do not disturb other inpatients, and the available range is small.

 Furthermore, as a conventional technology, “Portable terminal with Levy Yuichi function and its communication method” described in Japanese Patent Application Laid-Open No. 11-985677 and Japanese Patent Application Laid-Open No. 200.2-777032 are disclosed. There is a “mobile terminal connection system and connection service method” described in the gazette. The former is a mobile terminal that has the function of an all-in-one mobile phone and provides communication to mobile terminals located slightly outside the base station's servicer without using additional base stations or dedicated all-in-one mobile phones. It is. In the latter, the user's mobile terminal is connected to an external communication line via a private base station that communicates via a short-range wireless communication system. Disclosure of the invention

The present invention relates to a mobile terminal connection system that enables a user of the mobile terminal to receive a call and data communication service by the mobile terminal even in an area where use or communication of the mobile terminal is prohibited, such as a hospital. And a mobile terminal connection device. The mobile terminal connection system according to the present invention can be used in an area where a mobile terminal that connects to and communicates with a mobile communication network is used or in an area where communication is prohibited. A dedicated mobile terminal for premises that performs wireless communication, and a protocol conversion between the protocol of the mobile terminal and the protocol of the local communication network that is connected to the mobile terminal and the local communication network, and is received by the mobile terminal. At least a voice signal and a data signal are transmitted in accordance with the protocol of the private network. Along with transferring to the private mobile terminal via a communication network, at least a voice signal and a data signal transmitted from the private mobile terminal via the private communication network to the mobile terminal according to a protocol of the mobile terminal. And a portable terminal connection device for transferring.

 According to the present invention, a voice signal and a data signal arriving at a mobile terminal from a mobile communication network are transferred by the mobile terminal connection device to the private mobile terminal via the private network according to the protocol of the private network. . The voice signal and the data signal transmitted from the private mobile terminal to the mobile terminal connection device via the local communication network are transferred to the mobile terminal by the mobile terminal connection device according to the mobile terminal protocol.

 After the transfer, the mobile terminal can transmit the transferred signal to other mobile terminals via the mobile communication network.

 As a result, the owner of a mobile terminal can receive voice and data communications services even in areas where use of the mobile terminal or communication is prohibited by using the mobile terminal dedicated to the premises. it can.

 A mobile terminal connection device according to the present invention is connected to a mobile terminal that performs communication by connecting to a mobile communication network, and a first interface unit that transmits and receives at least a voice signal and a data signal to and from the mobile terminal, The mobile terminal is connected to a private network provided in an area in which use or communication of the mobile terminal is prohibited, and is connected to a private mobile terminal that can be used in the area and performs wireless communication with the private network. A second interface unit for transmitting and receiving at least a voice signal and a data signal via the private network, a protocol for the voice signal and the data signal from the first interface unit, and The protocol conversion between the voice signal and the data signal protocol from the second interface section is performed, and the voice signal and the data signal from the first interface section are converted into the private communication. In addition to transferring to the second interface unit according to a network protocol, the voice signal and the data signal from the second interface unit are transferred to the first interface unit according to the protocol of the mobile terminal. It has a protocol converter and.

According to the present invention, a voice signal and a data signal from a portable terminal are in accordance with a protocol of a private communication network provided in an area where use of the portable terminal or communication is prohibited. The data is transferred to the private mobile terminal. In addition, the voice signal and the data signal from the private mobile terminal are transferred to the mobile terminal according to the protocol of the mobile terminal. After the transfer, the mobile terminal can transmit the transferred signal to other mobile terminals via the mobile communication network.

 As a result, the owner of a mobile terminal can receive voice communication and overnight communication services even in areas where the use or communication of the mobile terminal is prohibited by using the mobile terminal dedicated to the premises. BRIEF DESCRIPTION OF THE FIGURES

 FIG. 1 is a block diagram showing the overall configuration of the mobile terminal connection system according to the first embodiment of the present invention.

 FIG. 2 is a block diagram showing a detailed configuration of the mobile phone connection device according to the first embodiment of the present invention.

 Figure 3 shows the hierarchical model of the mobile phone, the mobile phone connection device, and the protocol of the voice signal in the private branch exchange. Fig. 4 shows the hierarchical model of the protocol for the overnight signal in mobile phones, mobile phone connection devices, and private branch exchanges.

 Figure 5 is a sequence diagram showing the signal flow from the start of a call to the end of a call when an external mobile phone makes a voice call to a private mobile phone on premises.

 Figure 6 is a sequence diagram showing the signal flow from the start of a call to the end of a call when an external mobile phone makes a voice call to a private mobile phone on premises.

 Fig. 7 is a sequence diagram showing the signal flow from sending an e-mail to receiving it when an e-mail is sent from an external mobile phone to an on-premise mobile phone. Figure 8 is a sequence diagram showing the flow of signals from sending an e-mail to receiving it when an electronic mail is sent from a private mobile phone to an external mobile phone. FIG. 9 is a block diagram showing the overall configuration of the mobile terminal connection system according to the second embodiment of the present invention.

FIG. 10 is a block diagram showing a detailed configuration of the mobile phone connection device according to the second embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

 <First embodiment>

 FIG. 1 is a block diagram showing the overall configuration of the mobile terminal connection system according to the first embodiment of the present invention.

 This mobile terminal connection system is a system in which the owner of a mobile phone can receive services provided by the mobile phone even in an area where the use or communication of a mobile phone as an example of a mobile terminal is prohibited. , A mobile phone connection device (mobile terminal connection device) to which a mobile phone 2 subscribed to a mobile communication network 6 carrier 1, a private branch exchange (PBX) 3 installed in a premises such as a hospital facility, It has base stations 41 and 42 that use the area R for wireless communication, and a private mobile phone 5 for private use.

 Area R is a mobile phone prohibited area in a facility where use or communication of the mobile phone 2 is prohibited, such as a hospital facility. This area R may include an area where radio waves from a radio base station (not shown) located in the mobile communication network 6 cannot reach.

 Fig. 1 shows the mobile phone connecting device 1 and the private mobile phone 5 for each premises for simplicity, but in general, the mobile phone connecting device 1 and the private mobile phone for the premises 5 A plurality is provided corresponding to a plurality of users. Also, FIG. 1 shows two access points 41 and 42, which cover area R. However, only one access point may be used as long as area R can be covered. , Three or more may be provided.

 In this mobile terminal connection system, the mobile phone 2 is attached to the mobile phone connection device 1 before the owner of the mobile phone 2 enters the area R. The attachment is performed, for example, by connecting a connector (not shown) provided at a lower portion of the mobile phone 2 and a connector (not shown) of the mobile phone connection device 1.

The mobile phone connection device 1 is placed in a place where the output radio waves of the mobile phone 2 do not affect the medical equipment in the facility. As a result, malfunctions of the medical equipment in the facility due to the radio wave output from the mobile phone 2 are reliably prevented. After the mobile phone 2 is installed, the owner rents the private mobile phone 5 for the premises corresponding to the mobile phone connection device 1 on a one-to-one basis, and enters the area R with the rented private mobile phone 5 for the premises. I do. Then, the owner performs voice communication or data communication (for example, transmission / reception of e-mail) using the private mobile phone 5 in the premises in the area R.

 For example, a mobile phone 5 such as a PHS that has a small radio wave output power and does not affect the medical equipment installed in the facility due to malfunction or the like is used as the private mobile phone 5 for the premises. The private mobile telephone 5 communicates wirelessly with the nearest one of the base stations 41 and 42, and is connected to the corresponding mobile telephone connection device 1 and the mobile telephone 2 attached thereto by the private telephone connection 3 Connected. The private mobile phone 5 is connected to another mobile phone of the mobile communication network 6, a telephone of the public network 7, a personal computer, etc. via the mobile phone 2.

(Hereinafter referred to as “external terminal”).

 In the present embodiment, the private branch exchange 3 is used to exchange telephones, faxes, personal computers, etc. (all not shown) in the facility, and to exchange internal and external lines (normal exchange processing). The mobile phone connection device 1 (ie, the mobile phone 2) is exchanged with the private mobile phone 5. The private branch exchange 3 is preset with a one-to-one line connection (exchange process) between the cellular phone connection device 1 and the corresponding private cellular phone 5.

The private branch exchange 3 accommodates the mobile phone connection device 1 and the base stations 41 and 42. The private branch exchange 3 is a mobile phone connection device interface that performs interface processing of the mobile phone connection device 1. Executes the interface processing between 31 and the private mobile phone base station (hereinafter simply referred to as “base station”) 4 1 and 4 2 installed in the area R. In-house dedicated mobile phone base station “In-Shu” (hereinafter simply referred to as “base station interface”) 32. One connecting device interface 31 can perform interface processing for a plurality of mobile phone connecting devices 1, and a connecting device interface that performs one-to-one processing with the mobile phone connecting device 1. Evening faces 31 may be provided as many as the number of mobile phone connection devices 1. The base station interface 32 may be provided with a single unit for performing interface processing of a plurality of base stations, or a plurality of base stations corresponding to a plurality of base stations may be provided. May be provided.

 The mobile phone connection device 1 converts a protocol (protocol) between the mobile phone 2 and the private telephone exchange 3, and transmits a communication signal (voice signal, data signal) between the private mobile telephone 5 and the mobile telephone 2. Signal, control signal, etc.). For example, in the private branch exchange 3, 2 B + D (B 1 ch: voice signal, B 2 ch: mail, etc.) of the basic interface (BRI: Basic Rate Interface) of ISDN (especially narrowband ISDN) Signal, D ch: control signal), the mobile phone connection device 1 performs protocol conversion between the protocol of the mobile phone 2 and the BRI protocol, and outputs a voice signal, a data signal, and a control signal. To transfer.

 Through such processing, the signal received from the external terminal to the mobile phone 2 is transferred from the mobile phone connection device 1 to the corresponding private mobile phone 5 for premises. When a call is made from the private mobile phone 5 to an external terminal, the transmitted signal is transmitted to the mobile phone connection device 1 corresponding to the private mobile phone 5. This is transmitted from the mobile phone 2 attached to the mobile phone connection device 1 to an external terminal. .,

 As described above, the owner of the mobile phone 2 can use the private mobile phone 5 in the area R to perform voice communication and data communication with external terminals without adversely affecting medical equipment. Can be. Therefore, even if the use of the mobile phone 2 is prohibited, the owner can receive the service provided by the mobile phone 2.

 As will be described later, a communication signal from the external terminal is received by the mobile phone 2 via the mobile communication network 6, and a communication signal from the private mobile phone 5 to the external terminal is transferred from the mobile phone 2 to the external terminal. It is transmitted via the communication network 6. Therefore, the communication fee is charged by the charging process in the ordinary mobile communication network 6, and there is no need to perform a new charging process by the private branch exchange 3.

 Next, the detailed configuration of the mobile phone connection device 1 and the communication process between the mobile phone 2 and the private mobile phone 5 will be described.

FIG. 2 is a block diagram showing a detailed configuration of the mobile phone connection device 1 according to the first embodiment of the present invention. Figure 3 shows the hierarchical model of the voice signal protocol in the mobile phone 2, the mobile phone connection device 1, and the private branch exchange 3. Fig. 4 Shows the hierarchical model of the protocol of the overnight signal in the mobile phone 2, the mobile phone connection device 1, and the private branch exchange 3.

 The mobile phone connection device 1 has a mobile phone interface section 10, a protocol conversion section 15, a control section 16, and a private branch exchange interface section 17.

 The mobile phone interface 10 is used as an interface for the voice signal of the mobile phone 2, the data signal such as mail, and the control signal. It has an interface (IF) section 11, a data interface (IF) section 12, and a control line interface (IF) section 13. The mobile phone interface 10 has a power supply section 14 for supplying power to the mobile phone 2.

 The audio IF unit 11 executes the processing from the physical interface 510 of the mobile interface in FIG. 3 to the analog-to-digital conversion 512 in FIG. 3, and converts the analog voice signal from the mobile phone 2 into a digital signal. Along with the conversion, the digital voice signal given from the private branch exchange 3 via the protocol converter 15 is converted into an analog signal. If the data overnight signal is, for example, an e-mail, the data transmission IF unit 12 performs processing from the mobile interface physical layer 610 in FIG. 4 to the mobile mail upper layer protocol 6 13 in FIG. Execute c Control line IF unit 13 executes interface processing for the control signal.

 The protocol converter 15 converts the protocol between the private branch exchange 3 protocol and the mobile phone 2 protocol. That is, the protocol converter 15 receives the digital audio signal (the data after the analog-to-digital conversion 5 12 in FIG. 3) given from the audio IF unit 11 for the audio signal. The digital voice signal is supplied to the private network interface 17 in accordance with the protocol of the private network network transport layer of the private branch exchange 3, and the protocol of the voice signal supplied from the private branch exchange interface 17 is It is converted into a digital audio signal protocol of the mobile phone 2 and given to the audio IF unit 11.

 The processing of the private network interface and the private interface network physical layer 520 in FIG. 3 is performed by the private branch exchange interface 17.

The voice signal is transmitted between the mobile phone connection device 1 and the private mobile phone Communicated by 1 ch.

 Similarly, for the data signal, the protocol conversion unit 15 converts the protocol of the data transmission signal from the data transmission IF unit 12 into the local communication network mail upper-layer protocol 6 23 shown in FIG. · Converted to the protocol of the transport layer 622 and given to the private exchange interface 17, and the protocol of the data signal from the private exchange interface 17 is transferred to the mobile phone 2. Convert to protocol and give it to IF section 12

 The processing of the private communication interface and the physical layer 620 in Fig. 4 is performed by the private branch exchange interface section 17.

 The overnight signal is communicated between the mobile telephone connection device 1 and the private mobile telephone 5 by, for example, B2ch.

 The power supply unit 14 converts the power supply voltage (for example, 48 V) supplied from the private branch exchange 3 into a voltage (for example, 5 V) suitable for the mobile phone 2 and supplies the same to the mobile phone 2. As a result, even if the battery of the mobile phone 2 is exhausted, the private mobile phone 5 can communicate with the outside via the mobile phone 2.

 The control unit 16 controls the protocol conversion unit 15 based on the control signal given from the control line IF unit 13, and converts the control signal from the control line IF unit 13 into the protocol conversion unit 15 and The data is transmitted to the private branch exchange 3 by the D ch via the private exchange interface 17. Further, the control unit 16 receives a control signal from the private branch exchange 3 from the protocol conversion unit 15 and supplies the control signal to the mobile phone 2 via the control line IF unit 13. For example, if an incoming call arrives at mobile phone 2 from an external terminal in area R, the incoming call is notified to private mobile phone 5 on premises, and the mobile phone 5 on premises sounds a ring tone or uses the built-in vibrator. Vibrate. Such ringing tone and vibration control signals are transmitted from the mobile phone 2 to the private line f «3 via the control line IF unit 13, the control unit 16, and the protocol conversion unit 15. , May be given to the private mobile phone 5 from the private exchange, or the control unit 16 controls the protocol conversion unit 15 based on the control signal of the mobile phone 2 to generate a control signal, and It may be transmitted to the mobile phone 5.

When voice or data is transmitted from the private mobile phone 5 to an external terminal In, the telephone number of the external terminal is generated by the control unit 16 as a control signal, and is given to the mobile phone 2 via the control line IF unit 13.

 These control signals are communicated between the mobile phone connection device 1 and the private mobile phone 5 by, for example, Dch.

 Fig. 5 is a sequence diagram showing the flow of signals from the start of a call to the end of a call when a voice call is sent from a mobile phone (external mobile phone) of the external mobile communication network 6 to the private mobile phone 5.

 When the external mobile phone talks to the mobile phone 2, a voice transmission signal is transmitted from the external mobile phone to the mobile phone 2 via the mobile communication network 6. When the mobile phone 2 receives the outgoing signal (incoming signal) from the external mobile phone, it sends an incoming notification to the mobile phone connecting device 1 by a control signal.

 The mobile phone connection device 1 transmits the incoming voice notification to the corresponding private mobile phone 5 via the local exchange 3 using Dch. When receiving the voice call notification, the private mobile phone 5 emits a ring tone and / or vibrates the built-in vibrator. . „.,

Owner of the premises only portable telephone 5 performs a response operation, when responding to the call, _c the response notification response notification is sent back to the cellular phone connection adapter 1 via the private branch exchange 3 by D ch, the control signal As given to mobile phone 2. The mobile phone 2 transmits a response signal to the external mobile phone via the mobile communication network 6.

 As a result, a voice call is made between the external mobile phone and the private mobile phone 5 via the mobile phone 2 and the mobile phone connection device 1.

 When a disconnection operation, which is a call termination operation, is performed on the external mobile phone, a wireless link release signal is transmitted from the external mobile phone to the mobile phone 2 via the mobile communication network 6. As a result, the wireless link between the external mobile phone and the mobile communication network 6 is released, and the mobile phone 2 gives a disconnection signal to the mobile phone connection device 1 as a control signal.

This disconnection signal is transmitted from the mobile telephone connection device 1 to the private mobile terminal 5 via the private channel D 3 by the Dch. As a result, the B1ch connection link between the private mobile phone 5 and the mobile phone connection device 1 is released. As a result, The story ends.

 Figure 6 is a sequence diagram showing the signal flow from the start of a call to the end of a call when an external mobile phone sends a voice call to the private mobile phone 5 on premises.

 When the owner of the private mobile phone 5 performs an outgoing call on the private mobile phone 5, a call signal is transmitted to the private premises recite (premise communication network) 3, and the reception of the call from the private premises 3 is accepted. Will be replied to.

 Subsequently, when the office line dial (for example, an outside line special number) input by the holder is transmitted to the private branch exchange 3, the private exchange 3 is a communication to an external mobile phone based on the office line dial. Judgment is made and an outgoing call request is given to the mobile phone connection device 1. The mobile phone connection device 1 returns a call reception to the private branch exchange 3 and gives a call request to the mobile phone 2.

 A wireless link is established between the mobile phone 2 and the mobile communication network 6, and a call reception is returned from the mobile communication network 6 (wireless base station) to the private mobile phone 5 on premises.

Upon receiving this call reception, the private mobile telephone 5 transmits the dialed telephone number (the telephone number of the external mobile telephone) following the local line dial. The transmitted telephone number is transmitted to the mobile communication network 6 via the mobile telephone connection device 1 and the mobile telephone ² , and the mobile communication network 6 transmits a call signal to the external mobile telephone. As a result, the external mobile phone rings and / or vibrates.

 When the owner of the external mobile phone answers the call, a response signal is transmitted to mobile phone 2, mobile phone connection device 1, and private branch mobile phone 5 via private branch exchange 3 via mobile communication network 6. Subsequently, a call is started between the private mobile phone 5 and the external mobile phone.

 When a call termination operation (disconnection operation) is performed on the private mobile phone 5, a disconnection request is transmitted to the mobile communication network 6 via the private branch exchange 3, the mobile phone connection device 1, and the mobile phone 2, and the voice is transmitted. The call link is released. This ends the call.

Fig. 7 is a sequence diagram showing the signal flow from sending an e-mail to receiving it when an e-mail is sent from an external mobile phone to the private mobile phone 5 on premises. The mail sent from the external mobile phone to the mobile phone 2 is received by the mobile phone 2 via the mobile communication network 6. When the mobile phone 2 receives the mail, it sends a mail arrival notification to the mobile phone connection device 1. The mobile phone connection device 1 transfers the incoming mail notification to the private mobile phone 5 via the private branch exchange 3 via the Dch. Upon receiving the mail arrival notification, the private mobile phone 5 sounds a ring tone and / or vibrates the bi-play to notify the holder that the mail has arrived. According to this notification, when the owner performs the mail transfer operation, a mail transfer instruction is transmitted from the private mobile phone 5 to the mobile phone connection device 1 via the private branch exchange 3 via the Dch.

 Upon receiving the mail transfer instruction, the mobile phone connection device 1 gives the mobile phone 2 a read request for an unread mail address. In response to this request, the mobile phone 2 returns an unread mail address to the mobile phone connection device 1. Subsequently, the mobile phone connection device 1 gives the mobile phone 2 a read request for the mail corresponding to the unread mail address. The control unit 16 (see Fig. 2) sends these mail unread addresses read requests, receives mail unread addresses, and sends mail read requests corresponding to unread mail accesses.

 Upon receiving the read request, the mobile phone 2 gives the mail corresponding to the unread mail address to the mobile phone connection device 1, and the mobile phone connection device 1 sends the given mail to the premises via the private exchange 3 To dedicated mobile phone 5: Transfer by B2ch. As a result, the holder can read the received mail using the private mobile phone 5 on premises. FIG. 8 is a sequence diagram showing the flow of signals from the transmission of an electronic mail to the reception when an electronic mail is transmitted from the private mobile telephone 5 to an external mobile telephone. The e-mail addressed to the external mobile phone created using the private mobile phone 5 is transferred from the private mobile phone 5 to the mobile phone connection device 1 via the local communication network 3 by B2ch.

The mobile phone connection device 1 converts mail from the private exchange 3 into characters and transfers it to the mobile phone 2 as a protocol conversion. The mobile phone connection device 1 converts all the contents of the e-mail into characters and transfers them, and then sends a mail transmission instruction to the mobile phone 2 by a control signal. As a result, the mobile phone 2 sends the e-mail Send an e-mail to an external mobile phone in the dress. The transmitted mail is sent to the mobile communication network.

Sent to the external mobile phone via 6.

 Although the sending and receiving of e-mails has been explained, when accessing the homepage on the Internet and receiving information, in the same way as sending and receiving e-mails, the private mobile phone 5 to the mobile phone connecting device 1 andで き る Can be performed via the mobile phone 2 c Although the mobile phone 2 has been described as an example of a mobile terminal, the mobile terminal can be a personal computer or a PDA (Personal Digital Assistant) with a communication function with the mobile communication network 6. And so on. The private mobile phone 5 may also be a personal computer, a PDA, or the like having a communication function with the private communication network.

 As described above, according to the present embodiment, voice communication and data communication services using a mobile phone can be received even in an area where use or communication of the mobile phone is prohibited.

 Further, according to the present embodiment, voice and data communication from the private mobile phone 5 to the external terminal are performed from the mobile phone 2 to the mobile communication network 6 (and / or the public network 7). Communication from an external terminal is also performed to the mobile phone 2 via the mobile communication network & (and / or the public network 7). Therefore, there is no need to perform billing processing in private exchanges 3, and only charging processing in the ordinary mobile communication network 6 (and / or public network 7) is sufficient. Furthermore, according to the present embodiment, it is possible to transmit and receive a data signal in addition to an audio signal.

 Second Embodiment>

 FIG. 9 is a block diagram showing the entire configuration of the mobile terminal connection system according to the second embodiment of the present invention.

 This mobile terminal connection system includes a mobile phone connection device (mobile terminal connection device) la to which a mobile phone 2 subscribed to a mobile communication network 6 carrier is installed, and a premises IP network installed in a premises such as a hospital facility. (L AN) 3 a, access points (wireless access points) 4 a to 4 c, and a private mobile phone 5 a for premises.

This mobile terminal connection system differs from the first embodiment in that the private communication network in area R is replaced by an IP network 3a from the switching connection network of private exchange 3 in the first embodiment. . The same reference numerals as those in the first embodiment, such as the mobile phone 2, the mobile communication network 6, and the area R, are the same as those in the first embodiment. Therefore, the detailed explanation is omitted.

 As in the first embodiment, the mobile phone connection device 1a and the private mobile phone 5a are generally provided for each of a plurality of users. Also, the access points covering the area R are shown in FIG. 1 with three access points 4a to 4c. However, one or two access points may be used as long as the area R can be covered. There may be four or more.

In this mobile terminal connection system, as in the first embodiment, the owner of the mobile phone 2 attaches the mobile phone 2 to the mobile phone connection device 1a before entering the area R, The mobile phone 5a corresponding to the telephone connection device 1a is lent to the premises dedicated mobile phone 5a, and the user enters the area R with the rented mobile phone 5 dedicated to the premises. Then, in area R, the owner uses the private mobile telephone 5 to make a call or perform overnight communication (for example, sending and receiving e-mail). Premises only in _s first embodiment the premises only portable telephone 5 a.. A cellular phone. 5 and likewise, radio wave output power is small, influence of the malfunction in the medical device or the like provided in the facility None are used.

 The private mobile phone 5a for premises performs wireless communication with the nearest access point among the access points 4a to 4c, and communicates with the mobile phone connection device 1a corresponding to one-to-one via the nearest access point. connect.

 An IP address is assigned to the mobile telephone connection device 1a and the private mobile telephone 5a in advance, or is dynamically allocated by a Dynamic Host Configuration Protocol (DHCP) server or the like. Then, the mobile phone connection device la stores the IP address of the corresponding private mobile phone 5a, and the private mobile phone 5a stores the IP address of the corresponding mobile phone connection device 1a. As a result, the mobile phone connection device 1a and the private mobile phone 5a can communicate with each other based on the IP address of the partner device.

As a result, communication signals (voice signals, data signals, control signals, etc.) received from the external terminal to the mobile phone 2 are transmitted from the mobile phone connection device 1a to the corresponding private premises. The mobile phone 5a is transferred to the private mobile phone 5a based on the IP address of the mobile phone 5a. When a call is made from the private mobile phone 5a to an external mobile phone or the like, the transmitted signal is the IP address of the mobile phone connection device la corresponding to the private mobile phone 5 Is transmitted to the mobile phone connection device 1 and transmitted from the mobile phone 2 to an external terminal.

 FIG. 10 is a block diagram showing a detailed configuration of the mobile phone connection device 1a according to the second embodiment of the present invention. The mobile phone connection device la has a mobile phone interface unit 10, a protocol conversion unit 15a, a control unit 16, and a private IP network interface unit 17a.

 Here, too, the mobile phone interface unit 10, which has the same reference numerals as the components of the first embodiment, the audio IF unit 11, the data IF unit 12, the control line IF unit 13, and the power line The supply unit 14 and the control unit 16 are the same as the corresponding components of the first embodiment. Therefore, the detailed description is omitted. The protocol conversion unit 15a performs protocol conversion in the same manner as the protocol conversion unit 15 of the first embodiment, but the protocol on the local IP network 3a is TCP / IR, Vo IP, or the like. Therefore, the second embodiment differs from the first embodiment in that protocol conversion between the protocol of the private IP network 3a and the protocol of the mobile phone 2 is performed.

 The local IP network interface section 17a performs the interface processing of the local IP network 3a (mainly the processing of the data link layer and the lower layer of the physical layer).

 By the processing of the mobile telephone connection device 1a having such a configuration, the voice signal and the overnight signal arriving at the mobile telephone 2 are transmitted to the private mobile telephone 5a via the private IP network 3a by IP packets. You. In addition, the voice signal and the overnight signal transmitted from the private mobile phone 5a in the form of IP packets are converted into the signal of the mobile phone 2 and given to the mobile phone 2. Control signals such as incoming calls and telephone numbers are also communicated via IP packets on the local IP network 3a.

Note that the private mobile phone 5a for premises can use one that sends and receives IP packets, and one that sends and receives normal PHS signals. In the latter case, the IP packet and the PHS signal are transmitted by the access point 4a, 4b or the server (not shown) connected to the access point 4a, 4b. A conversion process between the numbers is performed.

 The signal flow in voice communication and the signal flow in overnight communication (mail communication) are the same as those in the sequence diagrams of FIGS. 5 to 8 described in the first embodiment, and therefore description thereof is omitted here. I decided to.

 Thus, also in the second embodiment, the owner of the mobile phone 2 can receive the communication service by the mobile phone 2 in the area R. In addition, the charge processing only needs to be the charging processing in the mobile communication network 6 (and / or the public network 7). Further, according to the present embodiment, it is possible to transmit and receive a data signal in addition to an audio signal.

 <Other embodiments>

 The mobile phone connection device 1 or 1a can be connected to the mobile phone 2 by wireless communication (in particular, short-range wireless communication) such as infrared or Bluetooth. In this case, the mobile phone interface unit 10 shown in Fig. 2 or Fig. 10 performs interface processing for wireless communication such as infrared and Bluetooth.

 Also, the mobile phone connection device 1 or 1a can be connected to the in-house IP network 3a by wireless (in particular, short-range wireless) such as wireless LAN- and Bluetooth. In this case, the private branch exchange interface unit 17 shown in Fig. 2 or the private IP network interface unit 10a shown in Fig. 10 performs interface processing of wireless communication such as wireless LAN and Bluetoot. It will be. Industrial potential

 INDUSTRIAL APPLICABILITY The present invention can be used in a system for providing a user with a service provided by a mobile terminal in an error in a hospital facility or the like where use of the mobile terminal or communication is prohibited.

According to the present invention, even in an area where use or communication of a portable terminal such as a hospital is prohibited or an area where radio waves from the base station of the portable terminal do not reach, the portable terminal connection device is used when entering the area. By simply connecting the user's mobile terminal, the user can receive services (voice communication, mail communication, etc.) using the mobile terminal. In addition, voice calls and e-mails are sent to on-premise terminals (such as on-premise mobile phones and personal digital assistants). Since the call is sent from the user via the user's own mobile terminal, the charging becomes a burden on the user, and the provider of the local communication network and the terminal does not need to perform the paperwork for the user such as billing the call charge. Service can be provided.

Claims

Scope 1. The use of a mobile terminal that connects to a mobile communication network for communication or can be used in an area where communication is prohibited, and is a private mobile phone that performs wireless communication with the local communication network provided in the area. Terminal and  The mobile terminal and the private network are connected to each other to perform protocol conversion between a protocol of the mobile terminal and a protocol of the private network, and convert at least a voice signal and a data signal received by the mobile terminal into the mobile terminal. The mobile terminal transfers the voice signal and the data signal transmitted from the private mobile terminal via the private communication network to at least the mobile terminal via the private communication terminal according to the protocol of the private communication network. A mobile terminal connection device for transferring to the mobile terminal according to the protocol of  Mobile terminal connection system equipped with. 2. In claim 1, The portable terminal connection device further transfers a control signal from the portable terminal to the private mobile terminal via the private communication network according to a protocol of the private communication network. _{3. A} mobile terminal connection system for further transferring a control signal transmitted via a communication network to the mobile terminal according to a protocol of the mobile terminal. 3. a first interface unit connected to a mobile terminal for communication by connecting to a mobile communication network and transmitting and receiving at least a voice signal and a data signal with the mobile terminal; The private communication network is connected to a private communication network provided in an area where communication is prohibited, and can be used in the area. A second interface unit for transmitting and receiving at least a voice signal and a data signal via the A protocol of the audio signal and the data signal from the first interface unit and a protocol of the audio signal and the data signal from the second interface unit are used. Between the first interface unit and the audio signal and the data signal from the first interface unit are transferred to the second interface unit in accordance with the protocol of the private network, and the second interface unit is A protocol conversion unit for transferring a voice signal and a data signal to the first interface unit according to a protocol of the mobile terminal;  A mobile terminal connection device comprising: In claim 3,  The first interface unit further transmits and receives a control signal to and from the portable terminal,  The second interface unit further transmits and receives a control signal to and from the private mobile terminal via the private communication network;  The protocol conversion unit converts a protocol of the control signal, transfers a control signal from the first interface unit to the second interface unit in accordance with a protocol of the private network, and transfers the control signal to the second interface unit. Transferring a control signal from the interface unit to the first interface unit according to the protocol of the mobile terminal; 5. In claim 3,  The private communication network is an ISDN switching network that performs switching processing using an ISDN basic interface. The protocol conversion unit transfers the voice signal and the data signal from the first interface unit to the second interface unit according to the ISDN basic interface protocol, and the second interface unit Transferring the voice signal and the data signal from the first interface unit to the first interface unit according to the protocol of the portable terminal. In claim 3,  The private network is an IP network,  The protocol conversion unit transfers the voice signal and the data signal from the first interface unit to the second interface unit according to an IP network protocol: a voice signal from the second interface unit and 4. The method according to claim 3, wherein a data signal is transferred to the first interface unit according to a protocol of the portable terminal.  The portable terminal connection device, wherein the first interface section transmits and receives the voice signal and the data signal to and from the portable terminal by wireless communication. In claim 3,  The portable terminal connection device, wherein the second interface unit transmits and receives the voice signal and the data signal by wireless communication with the private communication network. .—