JPH10190541A - Portable telephone repeater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable telephone repeater where a line is effectively utilized by taking notice that a place where the portable telephone repeater is arranged is an electric wave nonsensitive zone and positively utilizing it. SOLUTION: The repeater is constituted by adding a synthesizer 7, a data transmitting device 11 and a data input device 12 to the conventional one, a frequency channel except the one assigned to a radio zone to which a building 1 belongs is utilized by the data transmitting device 11, a private calling signal 25 relating to private pager calling is outputted and a private pager inside the building 1 is made to receive the private calling signal 25.

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,
A mobile phone relay device for enabling a mobile phone terminal to be used with high line quality even in a radio wave dead zone where radio waves from a radio base station in the radio zone do not reach, for example, in a building built in the radio zone. Has been used. FIG. 2 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 phone relay device 2 including the mobile phone relay device main body and the transmission / reception antennas 3 and 4 is in a radio wave dead zone where radio waves from the radio base station 14 in that radio zone do not reach while being in a certain radio zone. The transmitting and receiving antenna 3 is installed in the building 1 where the building 1 is located.
Outside, for example, it is arranged on the outer wall of the building 1 and faces the radio base station 14, and the transmitting and receiving antenna 4 is arranged inside the building 1, and the mobile phone in the building 1 The terminal 5 is opposed to the terminal 5 (only one is shown in the figure, but not limited to one). The mobile phone relay device body 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 a downlink transmission line between the antenna duplexers 6 and 9. And an up-link amplifier 8 and an up-link amplifier 10 respectively inserted and connected to the up-link transmission line.

[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] On the other hand, a building that is a radio wave insensitive zone is generally a large building, for example, a large-scale office, an airport building, a factory, and the like in many cases. In such a building, for example, a specific employee working in each place in the building may be instructed to make an emergency meeting to the office. In view of such a case, in recent years, there has been a building provided with a premises pager calling system in order to carry the premises pager with the specific employee and make a call using the premises pager. By the way, it would be very advantageous if the construction of the above-mentioned private pager calling system could be realized by adding a few new functions to the above-mentioned conventional cellular telephone relay device. The present invention has been made in view of the circumstances as described above, and is provided with a mobile telephone relay device to which a function of positively utilizing the fact that the installed location is in a radio wave insensitive zone is added, that is, a pager calling on a premises. It is an object of the present invention to provide a mobile phone relay device or the like to which a new function is added so that it can be used for constructing a system.

[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 base station in the radio zone, A mobile telephone relay device for relaying a wireless telephone line with a mobile telephone terminal in a building in a zone is configured as follows. That is, when the premises call information for calling the premises pager used in the building is input, the premises call information is transmitted using one frequency channel other than the frequency channel assigned to the wireless zone. Obtaining such a modulated wave electrical signal,
The modulated electric signal is combined with the relay apparatus downlink reception signal sent from the wireless base station, and the combined electric signal obtained by the combination is installed in the building and provided to the mobile phone terminal. The transmitting and receiving antennas facing each other are configured to have a function of transmitting a radio wave related to a combined electric signal from the transmitting and receiving antenna.

According to the second 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 building in the radio zone which is in a radio wave insensitive zone A mobile telephone relay device for relaying a wireless telephone line with a mobile telephone terminal in an object 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 transmitting / receiving antenna facing the mobile phone terminal, a second antenna duplexer connected to the second transmitting / receiving antenna, and a local call for calling a local pager used in the building A data input device for inputting information, and a private call information input from the data input device, and using one frequency channel other than the frequency channel assigned to the wireless zone, the private call information to the private call information. A data transmitting device for transmitting the modulated wave electric signal, the first antenna duplexer and the second
, The modulated electric signal transmitted from the data transmission device and the relay device transmitted from the first antenna duplexer. And a combiner that combines the downlink reception signal and sends out a combined electric signal obtained by the combination to the second antenna duplexer.

According to the third aspect of the present invention, there is provided a premises pager in a building which is located in one radio zone of a cellular phone service area comprising a plurality of radio zones and which is in a radio wave insensitive zone; Claim 1 installed in
Alternatively, a local pager calling system is constituted by the mobile telephone relay device described in (2).

[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 the configuration of the mobile telephone relay device 2 according to the above embodiment in relation to the wireless base station 14, the mobile telephone terminal 5 in the building 1, which is in a radio wave insensitive zone, the local pager 30 and the like. There is something. In FIG. 1, circuit portions having the same configuration and the same functions as those in FIG. 2 showing the conventional example are denoted by the same reference numerals, but the description of these circuit portions is omitted. . The data input device 12 is a device for inputting the private call information,
The above information input by operating the keys of the data input device 12 is converted into private call data 26 by the data transmission device 1.
Given to one. The data transmission device 11 captures the private broadcast data 26 and also receives the carrier of one frequency channel other than the frequency channel assigned to the wireless zone (hereinafter, referred to as “out-of-zone frequency channel”). This is a circuit unit that modulates with the call data 26 and sends out the obtained modulated wave electric signal as the local call signal 25. The combiner 7 includes an electric signal corresponding to the received signal 21 of the relay apparatus transmitted through the antenna duplexer 6 and a private call signal 2 from the data transmission apparatus 11.
5 and a circuit unit for sending the electric signal obtained by the synthesis to the down-link amplifier 8 (the synthesizer 7 is linear in frequency and has a frequency different from that of the synthesis target signal). It does not send out a signal, but in this specification all references to a combiner mean such a circuit).

Further, the in-premises pager 30 is a paging receiver used exclusively in the building 1, and upon receiving power supply, immediately becomes in a waiting state for reception, and a reception channel is fixed to the out-of-zone frequency channel. This is a paging receiver that waits for reception of a premises call signal 25 (note that only one premises pager 30 is shown in FIG. 1, but in practice, a plurality of premises pagers 30 are provided in the building 1. Is used).

The operation of the present embodiment configured as described above will be described. First, an operation of transmitting and receiving between the radio base station 14 and the mobile phone terminal 5 using the frequency channel assigned to the building 1 in a certain radio zone will be described. In this case, similarly to the conventional example shown in FIG. 2, the relay apparatus downlink reception wave 21 is received from the radio base station 14 by the transmission / reception antenna 3, and the electric signal corresponding to the relay apparatus downlink reception wave 21 is shared by the antenna. The signal is amplified by the down-link amplifier 8 through the combiner 6 and the combiner 7, is transmitted through the antenna duplexer 9, and is transmitted from the transmitting / receiving antenna 4 as the repeater down-transmission wave 22.
This will be received. In addition, 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 transmitted by the uplink amplifier 10. The amplified signal is transmitted through the antenna duplexer 6 to the wireless base station 14 from the transmission / reception antenna 3 as a relay apparatus uplink transmission wave 24.

Next, the operation of operating the keys of the data input device 12 to input the premises call information from the data input device 12 and calling the person carrying the premises pager 30 will be described. Private call information, that is, private call data 26 input from the data input device 12 is transmitted from the data transmitting device 11 as a private call signal 25 using a carrier related to the out-of-zone frequency channel.
The local call signal 25 is transmitted to the building 1 through the combiner 7, the downlink amplifier 8, the antenna duplexer 9, and the transmission / reception antenna 4, similarly to the relay apparatus downlink transmission wave 22. On the other hand, the local pager 30 (in which the receiving channel is fixed to the out-of-zone frequency channel as described above) in the building 1 and already in a standby state for receiving power supply is called the local calling. Upon receiving the signal 25, a calling operation (for example, generation of a ringing sound, generation of vibration, display of a calling source on a display unit, etc.) is performed. By this calling operation, the person carrying the local pager 30 recognizes that the call is being made.

The above-mentioned frequency channel for outside the zone is used only for transmitting the local call signal 25 as a down-transmitted wave in the building 1 which is in the radio wave insensitive zone. It cannot happen. From this, in a number of buildings in the same wireless zone, using the mobile phone relay device as described above,
The same frequency channel as the out-of-zone frequency channel used by the data transmission device 11 can be used repeatedly.

As described above, according to the present invention, paying attention to the installation location of the portable telephone relay device in a radio wave insensitive zone, the wireless zone to which the installation location belongs originally has
Using an unassigned frequency channel (ie,
It is possible to provide a mobile telephone relay device or the like that can be used for constructing a paging pager calling system in a building that is in a radio wave insensitive zone, while effectively utilizing a line.

[0015]

As described above in detail, according to the present invention, a portable telephone relay device and a portable telephone relay device to which a function for positively utilizing that the installation place is in a radio wave insensitive zone are added. Can be provided on the premises pager calling system.

[Brief description of the drawings]

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

FIG. 2 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 11 data transmission device 12 data input device 14 wireless base station 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 Local call signal 26 Local call data 30 Local pager

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 in a building in the wireless zone and in a radio wave insensitive zone A mobile telephone relay device for relaying a wireless telephone line between the mobile terminal and a terminal, the mobile telephone relay device being assigned to the wireless zone when premises call information for calling a premises pager used in the building is input. By using one frequency channel other than the frequency channel, a modulated wave electric signal related to the local call information is obtained, and the modulated wave electric signal is combined with the relay apparatus downlink received signal sent from the wireless base station. Transmitting the synthesized electric signal obtained by the synthesis to a transmitting / receiving antenna installed in the building and facing the mobile phone terminal, and A mobile telephone relay device, which has a function of transmitting a radio wave related to a composite electric signal. 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 in a building in the wireless zone and in a radio wave insensitive zone What is claimed is: 1. A mobile telephone relay device for relaying a wireless telephone line between a terminal and a terminal, comprising: a first transmitting / receiving antenna installed outside the radio wave dead zone and facing the wireless base station; A first antenna duplexer connected to the mobile telephone terminal, a second transmitting / receiving antenna installed in the radio wave dead zone and facing the mobile phone terminal, and a second transmitting / receiving antenna connected to the second transmitting / receiving antenna. 2, a data input device for inputting premises call information for calling a premises pager used in the building, and a premises call information input from the data input device. A data transmitting device for inputting and using one frequency channel other than the frequency channel allocated to the wireless zone to transmit a modulated wave electric signal related to the private paging information; and the first antenna duplexer; It is inserted and connected to the downlink transmission line between the second antenna sharing device and the modulated wave electric signal sent from the data sending device and sent from the first antenna sharing device. A mobile telephone relay device, comprising: a synthesizer that synthesizes the received signal with the relay device downlink and sends out a synthesized electric signal obtained by the synthesis to the second antenna duplexer. 3. A premises pager in a building that is in a radio wave insensitive zone in one radio zone of a mobile phone service area composed of a plurality of radio zones, and is installed in the building. A local pager calling system comprising the mobile telephone relay device according to claim 1 or 2.