JPH10243123A - System for charging booster for portable telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save labor of billing to a portable telephone enterprise by allowing a charging center to retrieve a portable telephone subscriber utilizing a booster sending a call signal from subscriber data and conducting charging processing when the subscriber is a charging object. SOLUTION: A booster 1 relays a radio wave sent from a base station 15 to a portable telephone set 15 and vice versa and warrants a radio wave environment even in a dead zone equal to that in a ground area. In the portable telephone system, charging information including establishment or not of a speech itself and a speech time is collected finally by a charging center 13 and stored in a subscriber database. Thus, each data content as a caller subscriber number, a call start time, a called subscriber number and an incoming call start time that denotes a call using the booster 1 is informed to the charging center 13, the subscriber in the charging center 13 is retrieved and collated with a speech recording and the booster utility charge is additionally imposed on a call whose speech is established for each call using the booster 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging system for a portable telephone, and more particularly to an additional charging system when a booster installed in a blind zone is used.

[0002]

2. Description of the Related Art Conventionally, when a mobile phone service is provided in a radio wave insensitive area such as an underground shopping mall or a tunnel, a booster is generally installed. However, it is difficult to recover the cost of the booster equipment. The current situation is that the installation has not been fully spread.

[0003] In view of such circumstances, various charging methods have been proposed in order to recover the installation cost of the booster.

[0004] As one example, Japanese Patent Application Laid-Open No. 7-193 is disclosed.
No. 533 discloses that, as a measure against radio wave insensitive zone, a general company purchases / installs booster equipment and has a charging information storage function unit for storing charging information in the booster. It describes a method for charging a mobile phone carrier.

FIG. 7 is a block diagram showing the configuration of the above-mentioned conventional booster. Referring to FIG. 7, a conventional booster 40 receives a radio wave transmitted from a base station to a mobile phone from a terrestrial antenna 41, and transmits a received radio wave via a terrestrial antenna-side duplexer 43. The signal is input to the line amplifier 44. The downlink line amplifier 44 amplifies the power of this radio wave, sends it to the dead zone antenna 42 via the dead zone antenna side transmission / reception duplexer 46, and radiates the radio wave to the mobile phone.

Conversely, radio waves transmitted from the mobile phone to the base station are input from the dead zone antenna 42 to the uplink amplifier 45 via the dead zone antenna side transmission / reception duplexer 46.

The uplink line amplifier 45 power-amplifies this radio wave, sends it to the terrestrial antenna 41 via the terrestrial antenna-side duplexer 43, and radiates the radio wave to the base station.

The booster 40 performs the above operation, relays the radio waves transmitted from the base station to the mobile phone and the radio waves transmitted from the mobile phone to the base station, and maintains the same radio wave condition as in the ground area even in the blind zone. To guarantee. At the same time, the amplifier 44 for the downlink and the amplifier 45 for the uplink
For all the up / down lines of the wireless line passing through
The control unit 47 monitors (monitors) the entire call processing operation from calling to ending, and records the calling subscriber number of the mobile phone and the talking time in the memory unit 48.

[0009] Then, the booster installer collects the information of the recorded mobile phone number and the notification time from outside with the information collecting terminal 49, and reduces the booster usage fee.
Charge the mobile phone carrier.

[0010]

However, the above-mentioned prior art described with reference to FIG. 7 has the following problems.

(1) The first problem is that a booster installer in a blind zone, which is a general company, asks a mobile phone operator to
In order to charge the booster usage fee, a lot of labor and
That is, it requires work man-hours.

[0012] The reason is that in the above-described conventional technology, the charging information such as the mobile phone number and the call time stored in the memory unit 48 of the control unit 47 in the booster is transferred to the information collecting terminal device such as a personal computer. Therefore, it must be collected manually from outside at regular intervals.

(2) The second problem is that the equipment configuration and circuit configuration of the control unit 47 (and the memory unit 48) in the booster become complicated, and the price and cost of the booster become extremely expensive. That is to say.

[0014] The reason is that in the above-mentioned conventional technology, the entire call processing operation from the outgoing call to the end of the call is monitored for all the up / down lines of the wireless line passing through the booster. This is because telephone number information and call time information cannot be obtained.

In particular, the current mobile telephone system is divided into a control channel for performing call connection control and an information channel for performing a telephone call. When monitoring the entire process from a call to the end of a call, a sequence of randomly walking between channels is used. In addition, complicated control operations are required.

Further, due to handoff control, instantaneous disconnection control of the radio link, and the like, a channel switching operation and a temporary disconnection operation occur even in the information channel, so that a more complicated control operation is required. Eventually, the equipment is equivalent to a base station controller.

(3) The third problem is that the accounting process such as the settlement of charges is a task for which the mobile phone carrier is responsible. This means that it takes a lot of time to check the charges, and furthermore, it is not possible to obtain a charge confirmation when the checks do not match.

The reason is that, in the above-mentioned prior art, human intervention is involved in collecting billing information such as talk time and billing work, including whether or not a call is made via a booster. That is, the charge center and the booster of the mobile phone system are not directly connected online.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above problems, and has as its object to collect billing information manually at regular intervals or to bring the collected billing information to a portable telephone. It is an object of the present invention to provide a method of charging a mobile phone booster usage fee that can reduce the labor required to charge a business operator.

It is another object of the present invention to provide a method of charging a booster usage fee for a cellular phone, which simplifies the equipment configuration and circuit configuration of a control unit in the booster and reduces the price of the booster.

Still another object of the present invention is to provide a mobile phone booster usage charge accounting method which realizes accurate accounting processing by connecting the booster and a charge center of the mobile phone system online. It is in.

[0022]

In order to achieve the above object, a method of charging a mobile phone booster usage fee according to the present invention comprises: (a) a mobile phone booster in a blind zone;
A control unit in the booster detects a mobile phone call signal in a dead zone which is called toward the mobile phone base station on the ground via the booster, and notifies the signal to a charge center of the mobile phone system, (B) The toll center that has received the signal searches the subscriber data for a mobile telephone subscriber who has used the booster that has transmitted the calling signal, and confirms that the call has been correctly established and is to be charged. After that, a billing process is performed.

Further, the method of charging a mobile phone booster usage fee according to the present invention comprises the following steps: (a) in a mobile phone booster in a blind zone, a mobile phone from the ground receiving a call to a mobile phone in the blind zone via the booster; A control unit in the booster detects a telephone call signal, and notifies the signal to a toll center of a mobile phone system. (B) The toll center, which has received the signal, sends the incoming call signal to the booster. Is searched from the subscriber data, and it is confirmed that the call has been correctly established and is to be charged, and then a charging process is performed.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below. In a preferred embodiment of the present invention, the control unit (8 in FIG. 1) of the booster monitors an uplink control channel and a downlink control channel amplified in the booster (uplink radio channel monitor, FIG. 1).
The outgoing signal and incoming signal in the call connection control procedure on the control channel are detected.

Only the originating subscriber number and the terminating subscriber number are extracted from the detected outgoing call signal and incoming call signal, and together with the time at which the outgoing call and the incoming call are started, the memory section of the control section (FIG. 1) 9, see FIG. 6).

Next, in the embodiment of the present invention, the line interface unit (10 in FIG. 1) of the booster transfers the data stored in the memory unit (9 in FIG. 1) to the public telephone network at regular intervals. Using a subscriber line, a connection is made to the charge center (13 in FIG. 1) of the mobile phone system by a dial-up function and transferred.

The line interface units of a plurality of boosters are slightly shifted in dial-up time from each other, so that no competition operation occurs at the toll center.

Further, in the embodiment of the present invention, the toll center receives the data structure of the calling / calling subscriber number and the calling / calling start time transferred via the subscriber line, and based on this data. Then, the subscriber data in the charge center is searched / collated.

As a result, a booster usage fee is additionally charged for a call for which a call is established, and no additional charge is applied for a call for which a call is not established.

As described above, in the embodiment of the present invention,
The control unit of the booster includes means for monitoring the uplink control channel and the downlink control channel amplified in the booster and detecting a call signal or an incoming signal in a call connection control procedure on the control channel. At that time, from the detected outgoing call signal and incoming call signal, only the originating subscriber number and the terminating subscriber number are extracted, and only the operation of storing in the memory unit is performed. It does not monitor any information channels to be shifted.

Also, in the embodiment of the present invention, the line interface unit of the booster converts the calling subscriber number and the receiving subscriber number stored in the memory unit and the time data at which the calling and the incoming call are started to a fixed value. There is provided a means for connecting to and transferring to a toll center of a mobile telephone system by a dial-up function using a subscriber line of a public telephone network every time.

As a result, the charge center and the booster are directly connected on-line, and the collection of billing information can be automated. At this time, since the billing information to be transferred is only the subscriber number and the call start time, the information transfer can be realized with a subscriber line having a significantly lower line cost without using a dedicated line having a small amount of information and a high line cost.

Further, in the embodiment of the present invention, the toll center receives the data structures of the calling / calling subscriber number and the calling / calling start time transferred via the subscriber line, and based on this data. Means for searching / collating subscriber data in the charge center, and means for additionally charging a booster usage fee for a call for which a call has been established and for not charging an additional charge for a call for which a call has not been established. I have.

As a result, the charge center and the booster are directly connected on-line, and the charge calculation process and the billing process can be automated.

[0035]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention;

FIG. 1 is a block diagram showing the overall system configuration of an embodiment of the present invention. Referring to FIG. 1, this embodiment includes a booster main body 1, a mobile phone 15, a base station 11 as a mobile phone system side, and a mobile phone exchange 1.
2, a charge center 13, and a public telephone network 14.

Referring to FIG. 1, the configuration of booster main body 1 includes a terrestrial antenna 2 connected to a terrestrial radio line, a transmission / reception duplexer 4 on the terrestrial antenna side, and an amplifier 5 for a downlink.
Monitor the amplifier 6 for the uplink, the duplexer 7 on the side of the dead zone antenna, the dead zone antenna 3 connected to the dead zone radio line, and the uplink and downlink radio lines,
A control unit 8 for detecting a call signal and an incoming signal and performing various controls; a calling subscriber number and a called subscriber number extracted from the call signal and the incoming signal detected by the control unit 8; And a line for transferring the data configuration stored in the memory unit 9 to the tolling center using the subscriber line 16. And an interface unit 10.

FIG. 2 is a diagram showing an overall schematic configuration of the present embodiment. In FIG. 2, reference numeral 1 denotes a booster for a mobile phone installed in a dead zone, the booster of this embodiment shown in FIG. 1, 2 a ground antenna, 3 a dead zone antenna,
11 is a base station (BS), 12 is a mobile telephone exchange (MS)
C) and 13 are toll centers (BC), 14 is a public telephone network, 15 is a mobile phone (mobile station) in a blind zone, and 16 is a subscriber line. The booster 1 is connected to a toll center 13, a subscriber line 16, and a public telephone network 14. From FIG. 2, it can be seen that a group of equipment in a dead zone such as an underground shopping mall (booster 1, antenna 3 in a dead zone) and a group of equipment on the ground (ground antenna 2, base station 11, mobile phone switching center 12, charge center 13) (Arrangement and connection, etc.) can be understood.

Next, the operation of the embodiment shown in FIG. 1 will be described in detail.

The radio wave of the terrestrial radio line is received from the terrestrial antenna 2 of the booster 1 and is input to the down line amplifier 5 via the transmission / reception duplexer 4 on the terrestrial antenna side.
The downlink amplifier 5 amplifies the power of the radio wave and sends it to the dead zone antenna 3 via the dead zone antenna-side duplexer 7 to radiate the radio wave to the mobile phone.

Conversely, radio waves transmitted from the mobile phone to the base station are input from the dead zone antenna 3 to the amplifier 6 for the uplink via the transmission / reception duplexer 7 on the dead zone antenna side. The uplink amplifier 6 power-amplifies this radio wave, sends it to the terrestrial antenna 2 via the terrestrial antenna side transmission / reception duplexer 4, and radiates the radio wave to the base station.

The booster 1 performs the above operation, relays the radio wave transmitted from the base station to the mobile phone and the radio wave transmitted from the mobile phone to the base station, and maintains the same radio wave condition as in the ground area even in the blind zone. To guarantee. At the same time, the control unit 8 monitors the uplink / downlink control channel of the radio channel via the downlink amplifier 5 and the uplink amplifier 6, and controls the call connection control procedure on the control channel. The incoming / outgoing call subscriber number is extracted by detecting the incoming / outgoing call signal in the memory unit 9 of the unit 8. The calling / receiving subscriber number and the time data at which the calling / receiving signal is detected are recorded in the memory unit 9 respectively.

Here, the operation of monitoring the uplink and downlink radio control channels and extracting the calling and called subscriber numbers will be described.

FIG. 3 shows TDMA (Time Division Multi) which is a standard digital mobile communication system.
FIG. 2 is a diagram schematically illustrating a time slot configuration of a ple Access (time division multiple access) method. In FIG.
An example of a time slot configuration when the multiplicity is three channels is shown, showing transmission / reception timings at a base station and transmission / reception modes at a mobile station (mobile phone).

Referring to FIG. 3, it is the uplink radio channel that the mobile station transmits and the base station receives, and mobile station: T, base station:
This is the timing of R1. Similarly, the transmission by the base station and the reception by the mobile station are downlink radio channels, and the timing is T1 for the base station and R for the mobile station.

Referring to FIG. 3, in a transmission time slot (T) from a mobile station, a guard time (G) 2 for preventing collision is set.
After 6, a preamble (P) 22 for carrier synchronization and clock synchronization is first sent as the head of the burst signal. Next, a burst signal composed of information data (D) 23 such as voice, a synchronization word (SW) 24 for frame synchronization, and control data (C) 25 transmitted and received between a mobile station and a base station or the like. Is sent.

On the other hand, since the transmission time slot from the base station is a continuous signal, the guard time 26 is unnecessary (see T1 of the downstream time slot 21 in FIG. 3), and the other parts are almost the same as the above-described configuration. become.

Next, FIG. 4 shows a configuration of a call signal in a call connection control procedure on a control channel. The time slot configuration diagram shown in FIG. 3 corresponds to layer 1 in FIG. This layer 1 also performs synchronization establishment control, transmission power control, and interference countermeasure control in addition to the used frequency, transmission output, modulation scheme, access scheme, and the like.

The information data 23 in the layer 1 is a layer 2 signal, which allows the base station to specify a mobile station with which it wants to communicate, and to correctly exchange information with the mobile station. Has a role to do. FIG. 4B shows a configuration example of the layer 2 signal. Referring to FIG. 4B, an address field 29 for displaying a target communication partner, a control field 30 for displaying a signal type and a sequence of signals, and an information field 31 for storing information used in layer 3 are formed. Is done.

FIG. 4 (c) is a diagram showing the structure of the signal of the layer 3, and includes a call control function such as a call connection at the time of outgoing / incoming call, line monitoring, connection change at the time of movement between cells, and call termination processing. Are layer 3 functions. FIG. 4C shows a layer 3
Shows an example of a call signal, a call signal control code 32, a calling subscriber number 33, a called subscriber number 34,
It consists of other information 35.

Therefore, by monitoring only the initial stages of the control channels from layer 1 to layer 3, the calling subscriber number 33 of the calling signal can be extracted relatively easily. In a manner, the called subscriber number can be extracted from the incoming call signal.

FIG. 5 shows the state transition for each module function of layer 3 and also shows the interrelationship between modules. For example, referring to FIG. 5, as the call processing, “call setup → maintenance of call → release of call → idle”
As shown in the middle of the figure, the radio channel control for call setup and call release is performed by control channel release and cell selection control channel setup, and when cell selection is performed, mobility monitoring, registration, etc. Communication-specific functions are implemented.
From FIG. 5, it can be seen that, as in the prior art, monitoring all the module transitions from the call setting after the call origination to the call release of the end call requires an enormous control operation.

FIG. 6 shows the booster 1 in this embodiment.
This is an example of a data configuration notified to the charge center 13 from. As described above, the calling subscriber number and the calling start time, the called subscriber number and the incoming call starting time extracted by the control unit 8 are stored in the memory unit 9 in a data configuration.

With reference to FIG. 1, the relationship between the line interface unit 10 in the booster, the subscriber line 16, the public telephone network 14, and the toll center 13 will be described.

In this embodiment, the subscriber line 16 and the public telephone network 14 are used to transfer the data configuration shown in FIG. The amount of transmitted data is small, and the fee processing is
Since a batch process may be used instead of an immediate process, the data configuration stored in the memory unit 9 is transferred to the charge center 13 of the mobile phone system using the subscriber line 16 of the public telephone network 14 at regular intervals. Adopt the method.

The frequency of transfer at regular intervals is sufficient once per day for normal traffic, and the transfer is performed a plurality of times only when traffic in the blind zone increases significantly.

The number of subscriber lines on the booster 1 side is one. Further, the line interface unit 10 has a modem for data transmission and a function of making a dial-up call.
A data structure whose contents are shown in FIG. 6 is automatically transmitted.

When connecting the booster 1 and the toll center 13, the number of subscriber lines on the toll center 13 side is reduced in consideration of the efficient use of subscriber lines as much as possible. Usually 1
The number of subscriber lines is determined by traffic calculation of the number of boosters installed and the number of calls passing through the boosters.

For this reason, in the present embodiment, it is conceivable that a competitive operation may occur on the subscriber line on the toll center side and a line busy may occur, so that the dial-up start time at the line interface unit 10 of the booster 1 is considered. Are set slightly shifted for each of the plurality of line interface units.

Further, the dial-up function is provided with a re-call function (redial function) in case a line busy occurs due to a conflicting operation.
A random time generator for setting the re-call interval at random to avoid re-collision. By providing such a function, it is possible to prevent a busy line on the charge center 13 side.

The charge center 13 of the mobile phone system
Has a data receiving modem and a dial-up function for receiving a data configuration sent via a subscriber line.

The subscriber line connection operation automatically performed by the dial-up calling function of the booster 1 and the dial-up receiving function of the toll center 13 is realized. In the toll center 13, each data configuration of the received calling subscriber number and calling start time, called subscriber number and called start time,
It has a function of collating with a subscriber database (subscriber fee memory) in the fee center 13.

With this function, the subscriber information collected by the booster 1 can be reduced to a minimum necessary one, which contributes to the reduction of the hardware scale of the booster body. That is, in a mobile phone system that includes an unstable wireless line, billing information including whether the call itself has been established or not, and the duration of the call, is finally collected at the toll center and stored in the subscriber database. I have. Therefore, the data contents of the calling subscriber number indicating the call using the booster and the calling start time, the called subscriber number and the called start time are notified to the tolling center, and the subscriber database in the tolling center is notified. By searching and collating with the call record, it is possible to determine whether the call has been established or not for each call using the booster, and as a result, for the established call, the booster usage fee is additionally charged, and the call is not established Additional charges are not applied for calls that have been made.

[0064]

As described above, according to the present invention,
With respect to the booster usage fee, it is possible to save the labor of manually collecting the billing information at regular intervals or bringing the collected billing information to the mobile phone carrier for billing.

Further, according to the present invention, it is possible to simplify the equipment configuration and line configuration of the control section in the booster, and to reduce the price of the booster.

Further, according to the present invention, by connecting the booster and the tolling center of the mobile phone system online, there is a remarkable effect that an accurate billing process can be realized. Is extremely high.

[Brief description of the drawings]

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

FIG. 2 is a diagram showing an overall schematic configuration of an embodiment of the present invention.

FIG. 3 is a diagram for explaining one embodiment of the present invention;
FIG. 2 is a diagram illustrating a time slot configuration of a TDMA system.

FIG. 4 is a diagram for explaining one embodiment of the present invention;
FIG. 3 is a diagram illustrating a configuration of a call signal in a call connection control procedure on a control channel.

FIG. 5 is a diagram for explaining one embodiment of the present invention;
It is a figure which shows each module function of Layer 3, and a state transition.

FIG. 6 is a diagram for explaining one embodiment of the present invention;
It is a figure which shows an example of the data structure which notifies a charge center from a booster.

FIG. 7 is a block diagram showing a configuration of a conventional technique.

[Description of Signs] 1, 40 Booster 2, 41 Ground Antenna 3, 42 Dead Zone Antenna 4, 43 Terrestrial Antenna Side Duplexer 5, 44 Downlink Amplifier 6, 45 Uplink Amplifier 7, 46 Dead Zone Antenna Side Transmitter / receiver 8, 47 Control unit 9, 48 Memory unit 10 Line interface unit 11 Base station 12 Mobile telephone exchange 13 Toll center 14 Public telephone network 15 Mobile telephone (mobile station) 16 Subscriber line 20 Base station Up reception time slot Reference Signs List 21 base station downlink transmission time slot 22 preamble 23 information data 24 synchronization word 25 control data 26 guard time 27 antenna switching diversity level measurement 28 idle 29 address field 30 control field 31 information field 32 transmission signal control code 33 Shin subscriber number 34 receiving subscriber number 35 Other information

Claims (12)

[Claims] (A) In a booster for a mobile phone in a dead zone, a control unit in the booster transmits a mobile phone call signal in a dead zone, which is called to a mobile phone base station on the ground via the booster. , And notifies this signal to the charge center of the mobile phone system. (B) In the charge center receiving the signal, the mobile phone subscriber using the booster that transmitted the call signal is registered in the subscriber data. , The call is successfully established,
A charging method for a mobile phone booster usage fee, wherein a charging process is performed after confirming that the mobile phone is to be charged. (A) In a booster for a mobile phone in a dead zone, a control unit in the booster detects a mobile phone call signal from the ground that has called the mobile phone in the dead zone via the booster. Notifying the signal to the charge center of the mobile phone system, (b) The charge center receiving the signal searches the subscriber data for a mobile phone subscriber using the booster that issued the call signal. And performing a charging process after confirming that the call has been established correctly and that the call is to be charged. 3. A control unit in the booster monitors an uplink control channel from a mobile phone in a blind zone to a mobile phone base station on the ground, and loads a call connection control procedure on the control channel into a storage unit. 2. The method according to claim 1, further comprising means for detecting a calling signal and extracting a calling subscriber number. 4. A control unit in the booster monitors a downlink control channel from a terrestrial mobile phone base station to a mobile phone in a blind zone, and loads a call connection control procedure on the control channel into a storage unit. 2. The method according to claim 1, further comprising means for detecting an incoming call signal and extracting a called subscriber number. 5. A control unit in the booster further comprises means for storing a calling subscriber number and a calling start time extracted from the calling signal in a storage unit, and storing a fixed time period as a data structure. 2. The method of charging a mobile phone booster usage fee according to claim 1, wherein: 6. A control unit in the booster has means for storing a called subscriber number and a call start time extracted from the call signal in a storage unit, and storing a predetermined time as a data structure. 2. The method of charging a mobile phone booster usage fee according to claim 1, wherein: 7. A line interface unit in the booster stores data structures of a calling subscriber number, a calling start time, a called subscriber number, and a call starting time stored in a storage unit.
2. The method according to claim 1, further comprising: means for transferring to a charge center of a mobile phone system using a subscriber line of a public telephone network at predetermined time intervals. 8. A means for connecting a subscriber line by calling a telephone number of a toll center of a cellular phone system by a dial-up function at regular time intervals by a line interface unit in the booster, and using the dial-up function. 2. The mobile phone according to claim 1, further comprising: means for slightly shifting the calling time for each of the line interface units of the plurality of boosters so as not to cause a competitive operation at the toll center. For booster usage fee. 9. The mobile phone system according to claim 9, wherein
2. The use of a cellular phone booster according to claim 1, further comprising means for receiving each data structure of the transferred calling subscriber number and calling start time, called subscriber number and called start time. Billing method for fees. 10. A toll center of the portable telephone system searches a subscriber database based on the data structures of the received calling subscriber number and calling start time, called subscriber number and called start time, It is compared with the call record to judge whether or not the call has been established for each data structure received.As a result, a booster usage fee is additionally charged for the call that was established, and for the call that was not established, 10. The method of charging a booster charge for a mobile phone according to claim 1, further comprising means for preventing additional charging. 11. A booster monitors an uplink control channel and a downlink control channel amplified in the booster, and outputs a mobile phone call signal and an incoming signal in a dead zone in a call connection control procedure on the control channel. Control means for detecting and extracting a calling subscriber number and a called subscriber number from the detected calling signal and called signal, respectively, and storing in the storage unit together with the time when the calling and called are started; Line communication means for connecting and transferring the data stored in the storage unit to the charge center of the mobile phone system by a dial-up function at regular intervals, and a transfer rate for the mobile phone booster. Billing system. 12. A booster monitors an uplink control channel and a downlink control channel amplified in the booster, and outputs a mobile phone call signal and a call signal in a dead zone in a call connection control procedure on the control channel. Control means for detecting and extracting a calling subscriber number and a called subscriber number from the detected calling signal and called signal, respectively, and storing in the storage unit together with the time when the calling and called are started; Line communication means for connecting and transferring the data stored in the storage unit to the charge center of the mobile phone system with a dial-up function at regular intervals, and wherein the charge center of the mobile phone system receives the data. A means for searching a subscriber database based on the data of the calling subscriber number and the call start time, and the data of the called subscriber number and the call start time, and comparing the data with a call record; Means for setting an additional charge for a booster usage fee for a established call, and a setting for not charging an additional charge for a call for which a call has not been established. .