JPH10135899A - Portable telephone repeater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable telephone repeater that has a new function by taking account of the fact that it is installed in a radio wave dead band and utilizing the fact positively. SOLUTION: A synthesizer 7, a distributor 13, an extension base station equipment 25 and a wired line connection device 16 or the like are added to a conventional repeater, and transmission reception utilizing other frequency channel than the frequency channel assigned to a radio zone or the like to which a building 1 belongs is conducted between the extension base station equipment 25 and a portable telephone terminal 5 so as to allow a speech between the portable telephone terminal 5 and a private telephone set 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio base station in one radio zone of a mobile phone service area composed of a plurality of radio zones, and a mobile phone terminal in a radio wave dead zone in the radio zone. More particularly, the present invention relates to a mobile telephone relay device that relays a wireless telephone line between the mobile telephone device and the mobile telephone relay device, and more particularly to a mobile telephone relay device that actively utilizes the fact that the mobile telephone relay device is installed in a radio wave insensitive zone to effectively use the line.

[0002]

2. Description of the Related Art Conventionally, while in a certain radio zone,
The mobile phone terminal can be used with high line quality even in a radio wave dead zone where radio waves from the radio base station in the radio zone do not reach, for example, in a building such as a large-scale office building built in the radio zone. For this reason, mobile telephone relay devices have been used. FIG. 3 shows the configuration of the mobile phone relay device in relation to the wireless base station, the mobile phone terminal, and the like. That is, the mobile telephone relay device 2 including the main body of the mobile telephone relay device and the transmitting and receiving antennas 3 and 4 is in a radio wave dead zone where radio waves from the radio base station 14 in the radio zone do not reach while being in a certain radio zone. The transmitting and receiving antenna 3 is disposed on the building 1 where the transmitting and receiving antenna 3 is disposed, for example, on the outer wall of the building 1 and faces the radio base station 14. It is disposed in the building 1 and faces the mobile phone terminal 5 (only one is shown in the figure, but not limited to one) in the building 1. The mobile phone relay device main unit 2 includes an antenna duplexer 6 connected to the transmitting / receiving antenna 3, an antenna duplexer 9 connected to the transmitting / receiving antenna 4, and an antenna duplexer 6.
And a down-link amplifier 8 and an up-link amplifier 10 which are inserted and connected to the down-link transmission line and the up-link transmission line between the first and second transmission lines, respectively.

[0003] The portable telephone relay device as described above is a building 1
Is installed in the building 1, even if the inside of the building 1 is in the radio wave insensitive zone as described above, the reception wave 21 of the relay device from the wireless base station 14 is received by the transmission / reception antenna 3 outside the building 1. The electric signal corresponding to the received reception wave 21 is received by the relay device, passes through the antenna sharing device 6, is amplified by the downlink amplifier 8, passes through the antenna sharing device 9, and is transmitted from the transmission / reception antenna 4 into the building 1. The mobile phone terminal 5 is transmitted as the transmission wave 22 and can receive the relay apparatus downlink transmission wave 22. Further, the relay apparatus uplink reception wave 23 transmitted from the mobile phone terminal 5 is received by the transmission / reception antenna 4, and the relay apparatus uplink reception wave 23
Are amplified by the uplink amplifier 10 through the antenna duplexer 9 and transmitted through the antenna duplexer 6 from the transmission / reception antenna 3 to the radio base station 14 as the relay apparatus uplink transmission wave 24. In this way, by interposing the mobile telephone relay device, high line quality can be ensured even between the mobile telephone terminal 5 and the wireless base station 14 in the building 1 which is in a radio wave insensitive zone ( That is,
The inside of the building 1 is also substantially no radio wave insensitive zone).

[0004]

As described above, the conventional portable telephone relay device sets a radio wave insensitive zone in a certain wireless zone in the same manner as another general zone in the wireless zone. It was only a change to a space where a line could be secured with a radio base station, and did not actively utilize the fact that the inside of the above radio wave insensitive zone was isolated from the outside with respect to radio waves. .

[0005] The present invention has been made in view of the above-described circumstances, and has a function of making effective use of a line by actively utilizing the fact that the place where the radio wave is installed is in a radio wave insensitive zone. The purpose is to provide a mobile phone relay device and the like.

[0006]

According to the first aspect of the present invention, a radio base station in one radio zone of a cellular phone service area composed of a plurality of radio zones, and a radio wave insensitive zone in the radio zone. A mobile telephone relay device for relaying a wireless telephone line with a mobile telephone terminal in a building is constructed as follows. That is, under the control of the wireless base station via the dedicated wired telephone line, transmission and reception with the mobile phone terminal in the building are performed on the remote zone frequency channel. The extension base station apparatus performs transmission and reception with the wired local telephone system via the wired local telephone line.

According to the second aspect of the present invention, a wireless base station in one wireless zone of a cellular phone service area composed of a plurality of wireless zones, and a building in the wireless zone and serving as a radio wave insensitive zone A mobile telephone relay device that relays a wireless telephone line with a mobile telephone terminal in the above is configured as follows. That is, a first transmitting / receiving antenna installed outside the radio wave dead zone and facing the wireless base station, and a first transmitting / receiving antenna connected to the first transmitting / receiving antenna.
The antenna duplexer is installed in the above radio wave insensitive zone,
A second transmission / reception antenna facing the mobile phone terminal, a second antenna duplexer connected to the second transmission / reception antenna, and transmission from the wireless base station via a dedicated wired telephone line. The communication data transmitted from the private telephone via the wired private telephone system in the building is controlled by receiving the received control signal, and the telephone uses the remote zone frequency channel. In addition to transmitting the modulated wave electric signal related to the communication data to the synthesizer described later, the relay apparatus uplink received signal sent from the distributor described later is input, and the remote An extension base station for transmitting only those using the zonal frequency channel to the premises telephone through the wired premises telephone system in the building; the first antenna duplexer and the second antenna The modulated electric signal transmitted from the extension base station is inserted into the downlink transmission line between the duplexer and the relay apparatus downlink transmitted from the first antenna duplexer. A combiner that combines the received signal and sends out the combined electric signal obtained by the combination to the second antenna duplexer (this combiner is linear in frequency and is a target of combining. It does not send out signals with frequencies different from those of the above two signals,
In the present specification, the term “combiner” means all such components) and is inserted and connected to an uplink transmission line between the first antenna duplexer and the second antenna duplexer. A distributor for distributing and transmitting the uplink reception signal transmitted from the second antenna duplexer to the first antenna duplexer and the extension base station (this distributor is a frequency divider) Is not linear, and does not transmit a signal having a different frequency component from the signal to be distributed.
All mean such a thing).

In the invention of claim 3, the private telephone system is configured as follows. That is, a wireless base station in one wireless zone of a mobile phone service area composed of a plurality of wireless zones, a mobile phone terminal in a building in the wireless zone and in a radio wave insensitive zone, 3. The mobile phone relay device according to claim 2, which is used in a building, the extension base device of the mobile phone relay device, a private branch exchange device of a wired private telephone system to be described later, and a dedicated wired line connecting the wireless base station. A telephone line, and a wired private telephone system in the building connected to the extension base device, from the mobile phone terminal to the wireless base station via a control channel, a specific one of the wired private telephone system When a series of calling signals indicating that a call with the extension telephone is desired are sent, the radio base station sends a control signal to the extension base device via the dedicated wired telephone line. The feed,
The remote zone frequency channel is used for transmission and reception to and from the mobile phone terminal, and a control signal is sent to the mobile phone terminal via a control channel to set the remote zone frequency channel of the mobile phone terminal to the remote zone. And a control signal is also sent to the private branch exchange of the wired private telephone system via the dedicated wired telephone line, and a call can be made between the mobile telephone terminal and the extension telephone. , The extension telephone is connected to the extension base station.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be specifically described based on one embodiment of the present invention. FIG. 1 shows a configuration of a mobile telephone relay device 2 according to the above embodiment, including a wireless base station 14, a mobile telephone terminal 5 in a building 1 in a radio wave insensitive zone, and a wired private telephone system of the building 1. There are some which are shown in relation to constituent private branch exchanges 12 and extension telephones 11 (in the figure, only one extension telephone 11 is shown, but there are actually many extension telephones 11). In FIG. 1, circuit portions having the same configuration and the same functions as those of the circuit portion in FIG. 3 showing a conventional example are denoted by the same reference numerals, but description of these circuit portions is omitted. .

The wired line connection device 16 is a connection circuit for connecting the other end of the dedicated wired telephone line 28, one end of which is connected to the radio base station 14, to an extension base unit 25 and the private branch exchange unit 12, which will be described later. is there. The extension base device 25
A plurality of the remote zone frequency channels are allocated, and the dedicated base line 28
It is controlled in response to a control signal transmitted via the wired line connection device 16 (hereinafter, referred to as a dedicated wired telephone line 28 or the like), and is controlled via the private branch exchange device 12.
1 is a circuit for inputting the communication data sent from 1 and sending out a modulated wave electric signal related to the communication data to a synthesizer 7 described later using one of the plurality of remote zone frequency channels. Department. In addition, this extension base station 25
A repeater uplink signal 23 sent from a distributor 13 to be described later is input, and only the repeater uplink receive signal 23 which uses the remote zone frequency channel is extracted and its call data is It is also a circuit section for sending out to the extension telephone 11 via the private branch exchange 12.

The combiner 7 combines the electric signal corresponding to the repeater receiving wave 21 transmitted through the antenna duplexer 6 and the modulated wave electric signal transmitted from the extension base station 25. And a circuit unit for transmitting the electric signal obtained by the synthesis to the down-link amplifier 8. Distributor 1
Reference numeral 3 denotes a circuit section for distributing the relay apparatus uplink reception signal 23 transmitted from the antenna duplexer 9 to the uplink amplifier 10 and the extension base station 25 and transmitting the same. The private branch exchange device 12 and the extension telephone 11 constitute a wired private telephone system in the building 1. The private branch exchange device 12 is wirelessly connected to the private telephone line 28 and the wired line connection device 16 through the dedicated telephone line 28 and the wired line connection device 16. It is also under the control of the base station 14.

The operation of the present embodiment configured as described above will be described. First, a transmission / reception operation between the wireless base station 14 and the mobile phone terminal 5 using a frequency channel allocated to the wireless zone where the building 1 is located will be described. In this case, similarly to the conventional example shown in FIG.
Is received by the transmission / reception antenna 3, and an electric signal corresponding to the downlink reception wave 21 passes through the antenna duplexer 6 and the combiner 7, is amplified by the downlink amplifier 8, passes through the antenna duplexer 9, and is transmitted from the transmission / reception antenna 4. This is transmitted as the relay apparatus downlink transmission wave 22, and the mobile phone terminal 5 receives it. Further, the relay apparatus uplink reception wave 23 transmitted from the mobile phone terminal 5 is received by the transmission / reception antenna 4, and an electric signal corresponding to the relay apparatus uplink reception wave 23 passes through the antenna duplexer 9 and is distributed by the distributor 13. One is amplified by an uplink amplifier 10, transmitted through a duplexer 6, and transmitted from a transmitting / receiving antenna 3 to a radio base station 14 as a relay apparatus uplink transmission wave 24.

Next, the operation when a call is made between the portable telephone terminal 5 and the extension telephone 11 (when the portable telephone terminal 5 is used as a portable extension telephone) will be described with reference to the operation explanatory diagram of FIG. I will explain it. For example, if a call signal (a signal transmitted by operating an off-hook switch) is transmitted from the mobile phone terminal 5 to the wireless base station 14 via the control channel as shown in FIG. 14 sends a line connection confirmation signal to the mobile phone terminal 5 via the control channel, as shown in FIG. Thereafter, the wearer of the mobile phone terminal 5 operates the dial key of the mobile phone terminal 5 to operate the extension telephone 11 with the extension call request code (displayed at each easily visible place of the building 1). The extension number is transmitted to the radio base station 1 via the control channel.
4 (see c in the figure).

The radio base station 14 receives the extension call request code and the like, and sends a control signal to the portable telephone terminal 5 through a control channel as shown in FIG. To one of said remote zone frequency channels (i.e., the remote zone line),
A control signal is sent to the extension base station 25 via the dedicated wired telephone line 28 or the like, so that transmission / reception to / from the mobile telephone terminal 5 uses the one remote zone frequency channel (see e in the figure). Thus, transmission and reception between the mobile phone terminal 5 and the extension base station 25 are performed via the remote zone frequency channel. Although not shown in the figure, the wireless base station 14 further includes a dedicated wired telephone line 28.
A control signal is transmitted to the private branch exchange 12 via the above-mentioned method, and the extension telephone 11 is connected to the extension base station 25. As a result, the mobile phone terminal 5 is connected to the extension telephone 11 via the extension base unit 25 or the like, and a call between them can be made. Thereafter, the control channel is disconnected as shown in FIG. Further, after the call is started as described above, when a signal indicating that the call is finished (a signal transmitted by operating the on-hook switch) is transmitted from the mobile phone terminal 5 to the extension base station 25, The extension base station 25 cuts off the remote zone frequency channel used (see g in the figure).

When a transmission / reception using the remote zone frequency channel, that is, a telephone call, is performed, a part of the uplink reception signal 23 of the repeater is partially distributed by the distributor 13, the uplink amplifier 10, and the antenna shared. Transmitter / receiver antenna 3 via device 6
And the radio wave is transmitted from the transmitting and receiving antenna 3, but in the radio zone where the building 1 is located and the radio zone adjacent to the radio zone, the frequency zone for the remote zone is not used as a base station line. Therefore, no inconvenience occurs.

[0016]

As described above in detail, according to the present invention, a portable telephone relay apparatus to which a function for positively utilizing the fact that the installation place is in a radio wave insensitive zone is added,
That is, a mobile phone relay device and a mobile phone relay device that enable a call between a mobile phone terminal and an extension telephone using a frequency channel that is not originally assigned to a wireless zone or the like to which the installation location belongs. Can provide a private telephone system using the Internet.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is an operation explanatory diagram of the embodiment.

FIG. 3 is a diagram showing a conventional example.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 building 2 mobile phone relay device 3 transmitting / receiving antenna 4 transmitting / receiving antenna 5 mobile phone terminal 6 antenna duplexer 7 combiner 8 downlink amplifier 9 antenna duplexer 10 uplink amplifier 12 private branch exchange 13 distributor 14 radio base station 16 Wired line connection device 21 Relay device downlink reception wave 22 Relay device downlink transmission wave 23 Relay device uplink reception wave 24 Relay device uplink transmission wave 25 Extension base unit 28 Dedicated wired telephone line

Claims (3)

[Claims] 1. A wireless base station in one wireless zone of a mobile phone service area composed of a plurality of wireless zones, and a mobile phone terminal in a building in the wireless zone and in a radio wave insensitive zone A mobile telephone relay device that relays a wireless telephone line between the mobile phone terminal and the mobile phone terminal in the building under the control of the wireless base station via a dedicated wired telephone line. The frequency channel which has not been allocated to the one radio zone and the radio zone adjacent to the radio zone and which has been approved in advance (hereinafter referred to as a remote zone frequency channel); A mobile telephone relay device, comprising: an extension base device for transmitting and receiving to and from a wired local telephone system in a building via a wired local telephone line. 2. A wireless base station in one wireless zone of a mobile phone service area composed of a plurality of wireless zones, and a mobile phone terminal in a building in the wireless zone and in a radio wave insensitive zone A mobile telephone relay device that relays a wireless telephone line between the mobile telephone and the wireless communication device, wherein the mobile telephone relay device is located outside the radio wave insensitive zone and is connected to the first transmitting / receiving antenna facing the wireless base station; A first antenna duplexer, a second transmitting / receiving antenna installed in the radio wave insensitive zone, facing the mobile phone terminal, and a second antenna connected to the second transmitting / receiving antenna A duplexer, is controlled by receiving a control signal transmitted from the wireless base station via a dedicated wired telephone line or the like, and is controlled via a wired private telephone system in the connected building. Type call data sent from the premises telephone, said remote zone -
A modulated wave electric signal related to the communication data is transmitted to a synthesizer described later using a frequency channel for communication, and a received signal received from a distributor described later is input to the combiner described later. An extension base station for transmitting only signals using the remote zone frequency channel to a local telephone via a wired local telephone system in the building; a first antenna duplexer; The modulated wave electric signal, which is inserted and connected to the downlink transmission line between the antenna duplexer and the second base station, and transmitted from the extension base station;
A combiner that combines the relay apparatus downlink reception signal sent from the first antenna duplexer and sends a combined electric signal obtained by the combination to the second antenna duplexer; The relay apparatus uplink reception signal, which is inserted and connected to an uplink transmission line between the first antenna duplexer and the second antenna duplexer, and is transmitted from the second antenna duplexer, A mobile telephone relay device comprising: a first antenna duplexer; and a distributor for distributing and transmitting to the extension base station. 3. A wireless base station in one wireless zone of a mobile phone service area composed of a plurality of wireless zones, and a mobile phone terminal in a building in the wireless zone and in a radio wave insensitive zone Connecting the mobile telephone relay device according to claim 2 used in the building, the extension base device of the mobile telephone relay device, and a private branch exchange device of a wired private telephone system to be described later, and the wireless base station. A private wired telephone line, and a wired private telephone system in the building connected to the extension base device.The private telephone system to the wireless base station via a control channel from the mobile phone terminal, When a series of outgoing signals indicating that a call with a specific extension telephone of the wired private telephone system is desired are sent, the wireless base station connects the dedicated wired telephone line. Then, a control signal is sent to the extension base station, and the remote zone frequency channel is used for transmission / reception with the mobile phone terminal, and a control signal is sent to the mobile phone terminal via the control channel. The transmission / reception frequency channel of the mobile telephone terminal is fixed to the remote zone frequency channel, and a control signal is also sent to the private branch exchange of the wired private telephone system via the dedicated wired telephone line. A private telephone system, wherein the extension telephone is connected to the extension base device so that a call can be made between a terminal and the extension telephone.