JPH10322747A - Mobile communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide communication service at the high speed movement and to suitably execute mobile communication even at a public place even in the mobile communication system of small cell constitution. SOLUTION: When a user receives a position control signal from a specified radio base station 101 installed at a wicket in a station when he gets on a train in the mobile communication system, the control part 204 of a portable terminal 111 is switched from a regular operation mode to a specified space mode (high speed moving mode) and it controls a measuring part 203 so that averaging time becomes short in the case of measuring received electric field intensity. Thus, the measuring time of received electric field intensity by the measuring part 203 becomes short and the processing time of hand-over is shortened. Then, communication service can be received by the portable terminal 111 even during high speed movement after the user gets on the train.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a personal handy-p
Mobile communication systems such as the hone System (hereinafter referred to as PHS), especially mobile terminals owned by users who are riding on railroads or driving on expressways, and mobile terminals that exist in specific spaces such as movie theaters The present invention relates to a mobile communication system that provides communication services to a mobile communication system.

[0002]

2. Description of the Related Art In a mobile communication system having a small cell radius (a narrow service area) represented by a PHS, when performing a handover, a portable terminal measures a reception electric field strength of a reception signal for a predetermined averaging time, Based on the measurement result, it is determined whether or not to perform handover, and if so, to which radio base station to connect.

[0003] When a PHS is used in a city, it is completely unpredictable in which direction the user will move at the next intersection.

[0004] Therefore, it is necessary for a portable terminal to correctly measure the received electric field strength of a received signal from a radio base station, and to determine to which radio base station the handover should be performed using the result. Also, in order to correctly measure the received electric field strength, a sufficient averaging time was required for the measurement.

If the moving speed of the user is low,
Even in a small-cell mobile communication system, the influence of the averaging time is hardly a problem, but when the user gets on a train or the like and moves at high speed, the averaging time becomes a problem, and the averaging time becomes a problem. If the speed is too fast,
An appropriate handover could not be performed.

Therefore, as a method for solving this problem,
It is also conceivable to add a moving speed measuring circuit for measuring the moving speed of the mobile terminal to the mobile terminal and change the handover process based on the result of measuring the moving speed with this circuit.
An increase in the number of circuits beyond this is not preferable from the viewpoint of miniaturization and low power consumption of the portable terminal.

On the other hand, in a mobile communication system with a small cell radius (a narrow service area) typified by a PHS, when a user who is riding on a railway or traveling on a highway by car makes a voice call with a portable terminal, handover is performed. Frequently occur and communication quality deteriorates. In addition, when a user receives an incoming call on a train while traveling on a railway, the mobile terminal often rings a bell and notifies the user of the portable terminal of the incoming call. Is not preferred because it gives a feeling of discomfort. Furthermore, even if a call is received by the vibration function or the like without ringing the bell, a voice call in the presence of many people in the car gives discomfort to the passengers in the vicinity.

[0008]

As described above, in the above-described conventional mobile communication system, when the moving speed of the user becomes high, the time of the handover process becomes a problem, and an appropriate handover may not be performed. was there.

Also, in a mobile communication system using small cells, when a portable terminal receives an incoming call in a public place or during high-speed movement, it gives an unpleasant feeling to a person around the portable terminal user by an incoming call notification or a voice call. There was a problem.

A first object of the present invention is to provide a radio terminal which moves at high speed together with a high-speed moving object whose traveling route can be predicted in advance, such as a train or an expressway. An object of the present invention is to provide a mobile communication system capable of performing an appropriate handover.

A second object of the present invention is to improve the serviceability of a radio terminal moving at a high speed in a mobile communication system using small cells, and to further discomfort to a person other than the user of the radio terminal at the time of an incoming call. And to provide a mobile communication system that can prevent the occurrence of the mobile communication system.

[0012]

To achieve the above object, a mobile communication system according to the first aspect of the present invention provides a communication service by communicating radio signals to radio terminals entering respective service areas. In a mobile communication system having a plurality of radio base stations to provide, installed in a location different from the service area of the plurality of radio base stations,
Providing specific signal transmitting means for transmitting a wireless signal including specific spatial information in the vicinity of the place, the wireless terminal receiving means for receiving a wireless signal transmitted from the plurality of wireless base stations and the specific signal transmitting means, Measuring means for measuring the reception level of the radio signal received by the receiving means in one of the normal and high speed states, and when a radio signal including the specific spatial information is received by the receiving means, And a control means for controlling the measurement means to measure the subsequent reception level at high speed.

In the case of the first aspect of the present invention, when the wireless terminal enters a specific space, the averaging time is measured at a high speed thereafter. Appropriate handover can be performed for a wireless terminal that moves at high speed together with a high-speed moving object whose moving route is known in advance, such as a car running on a highway.

According to a second aspect of the present invention, in the mobile communication system according to the first aspect, the control unit performs the measurement when the receiving unit receives a radio signal including other spatial information. It is characterized by controlling the means to measure the reception level at a normal speed.

In the case of the present invention, the control means controls the measurement means to measure the reception level at a normal speed when the reception means receives a radio signal containing other spatial information. Therefore, the user of the wireless terminal does not have to return to the operation mode setting one by one.

According to a third aspect of the present invention, there is provided a mobile communication system having a plurality of wireless base stations for providing communication services by wireless signal communication to wireless terminals entering respective service areas. The wireless terminal is provided at a location different from a service area of the wireless base station, and includes a specific signal transmitting unit that transmits a wireless signal including specific spatial information near the location, wherein the wireless terminal includes the plurality of wireless base stations and Receiving means for receiving a radio signal transmitted from a specific signal transmitting means; incoming call notifying means for notifying an incoming call in either a ringing sound or another notification form when a call is received to the terminal; and the receiving means When a wireless signal including the specific spatial information is received, the control unit controls the incoming call notifying unit to notify the incoming call in a notification mode other than a ringing sound. It is characterized by comprising a control means.

In the case of the third aspect of the invention, when the wireless terminal enters the specific space, the incoming call is thereafter switched to a notification mode other than the ringing sound, for example, a notification mode by vibration. It is possible to prevent discomfort caused by the ringtone.

According to a fourth aspect of the present invention, in the mobile communication system according to the third aspect, when the receiving means receives a radio signal including other spatial information by the receiving means, It is characterized in that the notifying means is controlled to notify the incoming call by a ringing sound.

In the case of the present invention, the control means controls the incoming call notifying means to notify the incoming call by ringing when the receiving means receives a radio signal including other spatial information. Therefore, the user of the wireless terminal does not have to return to the operation mode setting one by one.

According to a fifth aspect of the present invention, there is provided a mobile communication system having a plurality of wireless base stations for providing communication services by wireless signal communication to wireless terminals entering respective service areas. The wireless terminal is provided at a location different from a service area of the wireless base station, and includes a specific signal transmitting unit that transmits a wireless signal including specific spatial information near the location, wherein the wireless terminal includes the plurality of wireless base stations and A receiving unit that receives a wireless signal transmitted from the specific signal transmitting unit, a communication unit that performs communication by voice communication or another communication mode when a call is received to the own terminal, and the receiving unit A control unit that controls the communication unit to perform subsequent communication in a communication mode other than voice when a wireless signal including specific spatial information is received; It is characterized by having a.

In the case of the fifth aspect of the present invention, when the wireless terminal enters the specific space, the communication mode is switched to a communication mode other than voice thereafter, for example, mail communication. Incoming calls are eliminated, and it is possible to prevent voice calls from causing discomfort to surrounding people.

In a mobile communication system according to a sixth aspect of the present invention, in the mobile communication system according to the fifth aspect, the control unit is configured to perform the communication when the reception unit receives a radio signal including other spatial information. It is characterized in that the means is controlled to perform communication by voice communication.

In the case of the invention according to claim 6, the control means controls the communication means to perform communication by voice communication when the reception means receives a radio signal including other spatial information. It is not necessary for the user of the wireless terminal to reset the operation mode setting.

According to a seventh aspect of the present invention, there is provided a mobile communication system having a plurality of wireless base stations for providing communication services by wireless signal communication to wireless terminals entering respective service areas. In, comprises a specific signal transmitting means for transmitting a wireless signal including specific spatial information, the wireless terminal, receiving means for receiving a wireless signal transmitted from the plurality of wireless base stations and the specific signal transmitting means, at least Transmitting means for transmitting a radio signal to the radio base station; and stopping transmission of the radio signal to at least the transmitting means when a radio signal including the specific spatial information is received by the receiving means. And control means for performing such control.

In the case of the invention described in claim 7, the wireless terminal stops transmitting the wireless signal to at least the transmitting means of the wireless terminal when the receiving means receives the wireless signal including the specific spatial information. With such a control, the wireless terminal cannot communicate with the wireless base station in the specific space, so that careless communication can be automatically restricted.

[0026] In the mobile communication system according to an eighth aspect of the present invention, in the mobile communication system according to the seventh aspect, when the receiving means receives a radio signal including other spatial information by the receiving means, It is characterized by controlling the transmission means to start transmitting the wireless signal.

In the case of the invention described in claim 8, the radio terminal, after the radio signal including the specific spatial information is received by the receiving means and stops the transmission of the radio signal to the transmission means of the radio terminal, When a wireless signal including other spatial information is received by the receiving unit, the wireless unit controls the transmitting unit of the wireless terminal to start transmitting the wireless signal. The transmission of the signal is automatically restarted, and it is not necessary to consider whether the place where the user is located is in a specific space.

According to the above invention, appropriate handover can be performed for a radio terminal that moves at high speed together with a high-speed moving object whose traveling route can be predicted in advance, such as a train or an expressway.

Further, in a mobile communication system using small cells, it is possible to improve the serviceability of a wireless terminal moving at a high speed, and to prevent an unpleasant sensation to a person other than the user of the wireless terminal when receiving a call.

[0030]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a conceptual diagram showing a configuration of a mobile communication system of a first embodiment according to the present invention, and FIG. 2 is a conceptual diagram showing a configuration of a portable terminal (wireless terminal) of the mobile communication system of FIG. In FIG. 1, reference numeral 100 denotes, for example, Personal Han.
It is a network such as dy-phone System (hereinafter referred to as PHS). The network 100 includes a wireless base station 10 as a specific wireless base station (specific signal transmitting means).
1. Normal PHS wireless base stations 102 and 103, server 110, and the like are connected. Wireless base station 101
The PHS is installed in a specific place, such as a ticket gate of a station, where people must pass to enter or leave the station premises, and as a PHS covering only the vicinity of that place A relatively small cell, that is, a specific service area 101a is formed. The wireless base stations 102 and 103 are installed not in the station premises but in general places. Since the radio base stations 102 and 103 are PHS radio base stations, the cell radius is, for example, about 50 m, and have radio coverage areas of a service area 102a and a service area 103a. The server 110 stores information for providing various communication services such as voice (message) and documents (e-mail). 111 is P
An HS mobile terminal, and when a user who owns the mobile terminal enters any of the service areas 101a, 102a, 103a, the corresponding wireless base station 101, 102, 1
03 and the respective wireless base stations 10
By transmitting and receiving position control signals corresponding to 1, 102, and 103, it is possible to make and receive calls. Note that the wireless base station 101
The radio base station 102 and the radio base station 102 have different control types as base stations, and the radio base station 102 and the radio base station 103 perform the same control. The mobile terminal 111 can receive a desired communication service by connecting to one of the wireless base stations 102 and 103 according to the operation mode at that time.

As shown in FIG. 2, a portable terminal 111 includes a transmitting unit 201 for transmitting a radio wave from an antenna 200 to the outside.
And a receiving unit 202 that receives radio waves from the radio base stations 101, 102, and 103 via the antenna 200, and measures the received electric field strength of the received signal received by the receiving unit 202 at two speeds according to the control. A measuring section 203, a control section 204 for controlling each section, an incoming call notifying section 205 controlled by the control section 204 to perform a different incoming call notification, and a control section 2
The communication mode setting unit 206 is configured to set the communication mode of the transmission unit 201 and the reception unit 202 under the control of the communication unit 04. The incoming call notifying unit 205 includes a light emitting diode, a bell, a vibrator, and the like, and performs incoming call notification using one of them under the control of the control unit 204. The communication mode set by the communication mode setting unit 206 includes, for example, voice communication and mail communication.

The control unit 204 has an operation mode of a normal operation mode and a specific space mode (high-speed movement mode), and controls a specific external radio base station, in this case, the radio base station 1.
Switching to the specific space mode (high-speed movement mode) or returning to the original normal operation mode is performed by the transmission and reception of the position control signal of 01. Then, the control unit 204 sets the measurement unit 203 and the incoming call notification unit 20 according to the switched operation mode.
5. Control the communication mode setting unit 206 and the like. Control unit 20
When the operation mode 4 is switched to the specific space mode (high-speed movement mode), for example, the measurement unit 203 is controlled to measure the reception electric field strength (reception level) so as to shorten the averaging time.

Next, the operation of the mobile communication system according to the first embodiment will be described.

In the mobile communication system of the first embodiment, as an example, the direction of the station, that is, the service area
When the user walks in the direction of a, the mobile terminal 111 sends the server 110 to the server 110 via the wireless base station 102 and the network 100 within the service area 102a.
Sends a request signal for information stored in the network 100 and the radio base station 102
An example of a case where the requested information is provided (distributed) to the mobile terminal 111 via the Internet will be described.

In this case, the portable terminal 111 is connected to the radio base station 102 in a normal operation mode and receives a communication service.

When the user enters the station premises and passes through the service area 101a of the wireless base station 101 installed at the ticket gate of the station, the receiving unit 202 in the portable terminal 111 , And notifies the control unit 203 of the space information included in the position control signal, and the control unit 204 analyzes the space information to recognize that the own terminal has entered the specific space. I do.

Then, the control unit 204 switches the operation mode from the normal operation mode to the specific space mode (high-speed movement mode), and controls the measuring unit 203 so as to shorten the averaging time when measuring the received electric field intensity. . The measurement unit 203 that has received this control measures the received electric field strength with the averaging time shortened. Thereby, the processing time such as the handover processing is reduced. Therefore, after that, even if the user gets on the train and moves at high speed, the communication service can be provided. In the case of a railway, as a matter of course, since the train runs on the track, from the viewpoint of handover in mobile communication, the next wireless base station to be connected can be known in advance.

Therefore, the control unit 30 of the portable terminal 111
4 performs a process of strictly measuring the reception electric field strength of a reception signal from the radio base stations 102 and 103 and selecting a radio base station to be connected next based on the strict measurement result as in the related art. There is no need to perform the measurement, and the service to be provided will not be hindered by only simple measurement such as shortening the averaging time of the measurement unit 302 as in the first embodiment.

When the train user exits the ticket gate of another station, the portable terminal 111 transmits a radio signal (a radio signal including spatial information of the station) from the radio base station 101 installed in the station. Upon receiving, the mobile terminal 111 is changed to the original operation state, that is, the normal operation mode.

As described above, according to the mobile communication system of the first embodiment, the portable terminal 111
After entering the first service area 101a, the portable terminal 111 switches to the specific space mode (high-speed movement mode) thereafter, so that the user (train user) who has passed through the ticket gate of the station is on the premises of the station or on the train. When connecting to the wireless base station 102 with the mobile terminal 111 during
The averaging time is measured in a short time within
Even the mobile terminal 111 of S can smoothly connect to the radio base station 102 or 103 during high-speed movement. That is, if a capital investment is made to install the specific wireless base station 101 at the entrance of the station, the PHS portable terminal 111 that moves at a high speed can appropriately perform handover without significant capital investment. Thus, a stable and high quality communication service can be provided to the user of the portable terminal 111.

Note that the present invention is not limited to only the embodiments shown in FIGS.

For example, all the radio base stations may be the specific radio base station 101.

In this case, since the portable terminal 111 is always in the specific space mode, it is particularly effective when a new radio base station is installed such as in a subway. In addition, by installing a specific wireless base station 101 not only at railway entrances and exits, for example, at highway interchanges,
A similar service can be provided to a user riding a high-speed moving car.

Hereinafter, the second embodiment of the present invention will be described with reference to FIGS.
The mobile communication system according to the embodiment will be described. FIG. 3 is a conceptual diagram showing the configuration of the mobile communication system of the second embodiment,
FIG. 4 is a conceptual diagram illustrating a configuration of a mobile terminal of the mobile communication system according to the second embodiment.

The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In the mobile communication system according to the second embodiment, the mobile terminal 300 and the normal PHS wireless base stations 102 and 103 are not installed as shown in FIG.
The system is composed of only 108. The code 1
.., 108a are the respective wireless base stations 102,
103 ... 108 are service areas.

As shown in FIG. 4, the control unit 303 of the portable terminal 300 includes a counting unit 301, a timer 302, and the like, and sequentially counts the number of service areas (wireless zones) passed or existing during movement. In addition to causing the timer 301 to count, the timer 302 counts a predetermined time from a certain timing.

In the case of the mobile communication system according to the second embodiment, when the mobile terminal 300 enters the service area 102a, 103a,... Of the radio base stations 102, 103,. The radio signals periodically transmitted from the radio base stations 102, 103,... Are received and transmitted to the control unit 303. The control unit 303 determines whether or not the mobile station is moving based on normal position information included in the received radio signals. The mobile terminal 300 checks whether the number of wireless zones that the mobile terminal 300 itself has passed or exists within the time exceeds a predetermined number, and determines the moving speed of the mobile terminal 300 itself accordingly.

If the number of wireless zones exceeds a predetermined number, it is determined that portable terminal 300 is moving at a high speed, and if the number of wireless zones does not exceed the predetermined number,
It is determined that the mobile terminal 300 is moving at low speed.

For example, as shown in FIG.
Is the service area 1 of the wireless base station 102
When the timer 302 starts counting from this point, “1” is counted in the counting unit 301 when the service area 102a is entered.
If the mobile terminal 300 moves to the point Y in the service area 108a of the wireless base station 108 before the time-out of the
In total, “3” is counted including the number of 06a, and if the predetermined number is “2”, in this case, the control unit 303 determines that high-speed movement is being performed.

When the mobile terminal 300 determines that the mobile terminal 300 is moving at high speed, the control unit 303 controls the measuring unit 203 to shorten the averaging time when measuring the received electric field strength, and conversely. If it is determined that mobile terminal 300 is moving at low speed, control section 203 controls measuring section 203 so as to lengthen the averaging time when measuring the received electric field strength.

Thus, when the portable terminal 300 is moving at high speed, the processing time for handover and the like is reduced.
For example, even when the user moves on a train at a high speed, the time during which communication is not possible is reduced, handover is appropriately performed, and a high-quality communication service that could not be realized in the past can be provided.

Further, in the second embodiment, even when the mobile terminal 300 that has moved at a high speed changes to a low-speed movement,
By starting the timer 302 every certain time, it is possible to detect that the portable terminal 300 itself has changed to low-speed movement. In this case, the control unit 303 sets the measuring unit 2 to increase the averaging time when measuring the received electric field strength.
03, whereby the mobile terminal 300 can strictly select a wireless base station to be connected to itself.

As described above, according to the mobile communication system of the second embodiment, the counting section 301 counts the number of wireless zones that the portable terminal 300 has passed within a predetermined time, and based on the counted value. The mobile terminal 300 determines whether or not the mobile terminal 300 itself is moving at a high speed. If the mobile terminal 300 is moving at a high speed, the averaging time of the received electric field strength is shortened. Can correspond to high-speed movement. Next, a mobile communication system according to a third embodiment of the present invention will be described with reference to FIGS. FIG. 5 is a diagram showing a system configuration near a ticket gate of a railway station, and FIG. 4 is a diagram showing a system configuration near a railway track.

As shown in FIG. 5, at a railway station, a person who intends to use the railway (a railway user) always passes through the automatic ticket gate 211 or the ticket gate window from the aisle, and the platform via the stairs 210. It is configured to walk to.

A radio base station (BS) 21 is installed inside the automatic ticket gate 211, that is, near the platform in the station, and the radio base station (ΒS) 21 is a radio zone C21 which is a predetermined service area. Is formed. Further, a spatial information generating means 212 is connected to the radio base station (BS) 21, and the radio base station (BS) 21 is a spatial information transmitting means. The spatial information generating means 212
Spatial information indicating an exit or entrance to a specific space (station premises) is periodically transmitted to the radio base station (BS) 21,
The spatial information is included in the position control signal from the wireless base station (BS) 21 and transmitted as a wireless signal.

On the other hand, outside the automatic ticket gate 211, that is, in the vicinity of the aisle, a radio base station (BS) 22 of a normal PHS is provided.
And a radio base station (BS) 23 are installed.
The wireless zones C22 and C23 are formed respectively. It is assumed that the mobile terminals T11 and T12 have the internal configuration shown in FIG.

As shown in FIG. 6, a normal PHS radio base station (B
S) 11, radio base station (BS) 12, radio base station (B
S) 13 is provided. Each radio base station (BS) 1
1, radio base station (BS) 12, radio base station (BS) 13
Form wireless zones C11, C12, and C13, respectively.

When the user of the portable terminal T11 goes to the boarding station and gets on the train, when the user passes through the automatic ticket gate 211 from the passage of the boarding station, the user then passes through the stairs 210 in the station premises as the train user U11. To get home.

At this time, the portable terminal T11 is also in the wireless zone C
22 or the wireless zone C23, enters the wireless zone C21 via the automatic ticket gate 211, and at the moment when the portable terminal T11 enters the wireless zone C21, a wireless signal including spatial information transmitted by the wireless base station (BS) 21. Is received, and the content of the position information has changed from the wireless zone C22 or the wireless zone C23 so far, the mobile terminal T11 recognizes that it has entered a specific space, and the operation mode is switched to the specific space mode.

On the other hand, on the other hand, when the railway user U11 leaves the station, after passing through the radio zone C21, the automatic ticket gate 2
11 enters the wireless zone C22 or the wireless zone C23, but when the railway user U11 passes through the wireless zone C21, the portable terminal T11 does not receive a wireless signal from the wireless base station (BS) 21 and the portable terminal T11 Recognizing that it has escaped from the specific space, the operation mode is switched to the original operation mode, and thereafter, the radio base station (BS) 2
2 or any one of the wireless base stations (BS) 23 into the wireless zones C22 and C23 and enters the wireless base station (B
S) 22 or a radio signal transmitted from the radio base station (BS) 23 enables normal communication. In addition,
When a radio signal including spatial information different from that of the radio base station (BS) 21 is received, it may be recognized that the radio base station (BS) 21 has gone out of the specific space.

After the portable terminal T11 recognizes whether it is inside or outside the specific space, various operation examples can be considered.

Hereinafter, first to fifth operation examples will be described.

As a first operation example, the portable terminal T11
However, when the control unit 204 recognizes that the vehicle has entered the specific space, the control unit 204 controls the incoming call notification unit 205 so as to perform a different incoming call notification from when the vehicle is outside the specific space.

In this case, when there is an incoming call outside the specific space, the user is notified of the incoming call by ringing the bell of the incoming call notifying section 205. To notify the user of the incoming call.

As shown in FIG. 6, even when the portable terminal T11 and the portable terminal T12 exist in the wireless zone C12 of the wireless base station (BS) 12, the portable terminal carried by the railway user U11 on the railway vehicle 221 Since T11 has already passed through the wireless zone C21, it is operating in the specific space mode, and the mobile terminal T1 held by the external user U12
2 is operating in the normal operation mode because it does not pass through the wireless zone C21.

In such a situation, the radio base station (BS) 1
When there is an incoming call from the mobile terminal T12 to the mobile terminal T12, the user U1
Incoming call 2 is notified by ringing the bell. Further, when there is an incoming call from the wireless base station (BS) 12 to the portable terminal T11, the incoming call is notified to the railway user U11 by vibration with a vibrator.

Next, a second operation example will be described.

In the first operation example, the radio base station (BS) 2
Although the example in which the incoming call notification unit 205 of the portable terminal T11 is switched from the bell to the vibrator to notify the incoming call by the wireless signal from the terminal 1 has been described, in this operation example, when the user exists in the predetermined space, the unnecessary incoming call notification is performed. Is not performed, that is, the notification of the incoming call is automatically stopped.

For example, in the situation as shown in FIG. 6, when the portable terminal T12 in the normal operation mode receives a call connection request signal from the caller, the control unit 204 performs an incoming call process and rings the bell. For example, the user U12 is notified of the incoming call.

On the other hand, when a call connection request signal is received by the portable terminal T11 that is switching to the specific space mode, the control unit 204 does not perform the incoming call processing, and instructs the caller to use the portable terminal T11. The user is informed (information) that the user is present in a specific space (such as a railway vehicle).

Then, after the user of the portable terminal T11 leaves the specific space (station premises), the portable terminal T11 notifies the user that a call connection request has been made while in the specific space.

Next, a third operation example will be described.

In the third operation example, the communication mode of the mobile terminal T11 existing in the specific space (on the train) is changed to a communication mode different from the communication mode of the mobile terminal T12 existing outside the specific space. In this example, the connection request cannot be received.

When the caller transmits a connection request signal for a call of the voice communication service to the portable terminal T12 located in, for example, the wireless zone C12 around the railroad track, the connection request signal is received by the portable terminal T12. The control unit 204 receives the call, and the control unit 204 performs a call connection process to enable a voice call. In the portable terminal T11 which is located in a specific space (in a train) and operates in the specific space mode, the receiving unit 202 is
The communication mode setting unit 206 sets the state of mail communication, and does not receive a connection request signal for a call of the voice communication service.

Then, instead, the radio base station (BS)
12 prompts the caller to use e-mail communication, and when the caller makes a call by e-mail communication, the portable terminal T1
The first receiving unit 202 receives the connection request signal of the call and performs communication by mail communication. The transmission of the mail may be performed not just after the caller has input the voice mail, but also after the portable terminal T11 leaves the specific space.

Next, a fourth operation example will be described.

In the fourth operation example, a description will be given of voice control when the user listens to sound information such as music and voice on the portable terminal T11.

In the situation of FIG. 6, the portable terminal T11
Since the mobile terminal T11 exists in the specific space, the volume of the portable terminal T11 is set to be higher than when the user is outside the specific space.

That is, when the portable terminal T11 is in the wireless zone C
The volume setting is automatically increased when the vehicle enters or passes through 21. Wireless zone C21 at mobile terminal T11
If the user has heard the sound information before passing through the wireless zone C21, the volume automatically increases when the user enters or passes through the wireless zone C21.

On the other hand, when the user of the portable terminal T11 passes through the wireless zone C21 when leaving the station, the setting of the volume of the portable terminal T11 is automatically reduced to the original state.

As described above, the portable terminal T1 of the railway user U11 who has passed the ticket gate of the station in order to use the railway from now on.
1 is further increased from the sound volume that has been listened to before, so that the user of the portable terminal T11 can listen to the sound information at a sound volume that is easy to hear even in a loud noise environment such as in a station yard or a railcar.

Further, even with the portable terminals T11 and T12 existing in the same wireless zone C12, the volume of only the portable terminal T11 can be automatically set to be large depending on whether or not the portable terminal T11 has passed through the wireless zone C21.

Further, besides the railway, a radio base station 21 connected to the spatial information generating unit 212 is installed at an interchange on a highway, for example, when a car tries to move from a general road to an expressway through an interchange. To
By providing the space information to the mobile terminal T11 in the vehicle, the same communication service is available to the user of the vehicle running at high speed. Although the noise inside the car traveling at high speed is higher than that of a general road, the user listens to the sound information by providing the spatial information to the mobile terminal T11 and automatically setting the volume of the mobile terminal T11 to be high. You will be able to listen at an easy volume. In addition, conversely, the portable terminal T11
May be reduced. For example, if the volume setting of the portable terminal T11 of the railway user U11 that has passed the ticket gate of the station to get on the railway is set lower than the previous setting, the user of the portable terminal T11 listens to music at an excessively high volume, It is possible to prevent discomfort to nearby railway users.

Next, a fifth operation example will be described.

The fifth operation example is an example in which the transmission of the radio signal of the portable terminal # 11 existing in the specific space is stopped.

For example, in the situation of FIG. 6, the mobile terminal T12 in the normal operation mode can transmit and receive a radio signal. That is, the mobile terminal T12 can receive a call signal or the like from the wireless base station (BS) 12. Further, the mobile terminal T12 can transmit a radio signal for location registration, outgoing call, incoming call, and the like.

On the other hand, the portable terminal T1 existing in the specific space
1 has been switched to the specific spatial mode, can only receive wireless signals, and has stopped transmitting wireless signals. That is, the mobile terminal T11 is connected to the wireless base station (B
S) Although it is possible to receive a call signal and the like from 12, it is impossible to transmit a radio signal due to location registration, outgoing call, incoming call, etc. Signals and the like cannot be transmitted.

Here, the reception may be stopped in addition to the transmission of the radio signal of the portable terminal T11 existing in the specific space.

By the above operation, the portable terminal T11 of the railway user U11 who has passed the ticket gate of the station in order to use the railway cannot at least transmit a radio signal, and thus cannot perform communication. No discomfort to railway users. In addition, since the portable terminal T11 does not transmit a radio signal, it is possible to prevent the operation of the cardiac pacemaker from being abnormal, and the railway user wearing the cardiac pacemaker can use the portable terminal T11 due to the congestion of the railway. Even when approached, the cardiac pacemaker can continue to operate normally.

[0091] Although only the operation example in the case of a railway has been described here, the specific signal transmitting means may be installed near the boarding gate of the airport. In this way, it is possible to prevent the portable terminal from transmitting a wireless signal in the airplane, and to prevent malfunction of the electronic components mounted on the airplane.

Further, a specific signal transmitting means may be installed near the entrance of the hospital. In this way, it is possible to prevent the portable terminal from transmitting a wireless signal in the hospital and prevent malfunction of the device in the hospital.

As described above, according to the mobile communication system of the third embodiment, when the user is using the portable terminal T11 while using the railway.
Is received by the vibration of the vibrator, it is possible to know the incoming call to the portable terminal T11 without giving a nearby person discomfort by ringing the bell. The mobile terminal T1 is located in the same wireless zone C12.
1. Even when T12 is present, the internal function (operation mode) of the mobile terminal is switched depending on whether or not the mobile terminal has passed the wireless zone C21. When the user is on the train, the surroundings are not bothered.

When a call connection request signal is received while the user of the portable terminal T11 is on a railway car, the incoming call is not automatically notified without performing the incoming call processing, thereby making it possible to use the surrounding railway. Without giving discomfort to the person.

Further, the portable terminal T11 does not automatically receive the call connection request signal by the voice communication service while the user of the portable terminal T11 is riding on the railway car.
It is possible to avoid discomfort to the railway users around the user of the portable terminal T11.

Further, since it is impossible to provide a communication service of good quality to a portable terminal moving at high speed, the user of the portable terminal T11 exists in a specific space (such as a railway car) for the caller. Guiding (information) to the effect leads to improvement of communication services.

[0097] In the above embodiments, the railroad has been described as an example. In addition, for example, a radio base station (BS) 21 connected to the space information generating means 212 is installed at the entrance of a movie theater or a museum. Accordingly, it is possible to notify only the portable terminal user of the incoming call without giving discomfort to facility users around the person who has the portable terminal. Also, by providing the spatial information at the interchange of the highway, the same service as described above can be provided to the mobile terminal user of the car traveling on the highway.

[0098]

As described above, according to the present invention, the specific signal transmitting means transmits the wireless terminal with specific spatial information included in the radio signal, and carries the radio signal from the specific signal transmitting means. When the terminal receives the signal, the reception level is measured in a short time thereafter, so that the time required for the handover process is shortened, and the quality of the radio terminal moving at high speed is reduced even in a mobile communication system with a small cell configuration. Good and stable communication services can be provided.

Further, when the portable terminal receives a radio signal from the specific signal transmitting means, the incoming call notifying means notifies the incoming call in a notification mode other than the ringing sound, for example, by vibration or the like. It is possible to prevent discomfort to people around the user of the terminal. Further, when the mobile terminal receives a wireless signal from the specific signal transmitting means, the communication mode is switched so as to perform communication in a communication mode other than the voice communication. If there is a connection request, the call is not received, and it is possible to prevent the user of the portable terminal from making an unpleasant sensation to the surrounding people due to the voice call.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing a configuration of a mobile communication system according to one first embodiment of the present invention.

FIG. 2 is a conceptual diagram showing a configuration of a mobile terminal of the mobile communication system according to the first embodiment.

FIG. 3 is a conceptual diagram showing a configuration of a mobile communication system according to a second embodiment of the present invention.

FIG. 4 is a conceptual diagram showing a configuration of a mobile terminal of the mobile communication system according to the second embodiment.

FIG. 5 is a conceptual diagram of equipment arrangement near a station ticket gate in this mobile communication system.

FIG. 6 is a conceptual diagram of equipment arrangement near a railway line in the mobile communication system.

[Explanation of symbols]

100: network, 101 to 108: wireless base station,
101a to 108a: service area, 110: server, 111, 300: portable terminal, 200: antenna, 2
01: transmitting unit, 202: receiving unit, 203: measuring unit, 20
4, 303: control unit, 212: spatial information generating means.

Claims (8)

[Claims] 1. A mobile communication system having a plurality of radio base stations for providing a communication service by radio signal communication to radio terminals entering respective service areas, wherein a radio signal including specific spatial information is transmitted. The wireless communication system further includes a receiving unit that receives wireless signals transmitted from the plurality of wireless base stations and the specific signal transmitting unit; and a receiving level of the wireless signal received by the receiving unit. Measuring means for measuring in a normal or high speed state, and when a radio signal including the specific spatial information is received by the receiving means, measurement of the subsequent reception level to the measuring means at high speed Control means for controlling the mobile communication system to perform the mobile communication. 2. The mobile communication system according to claim 1, wherein the control unit receives a radio signal including other spatial information by the reception unit at a normal speed with respect to the measurement unit. A mobile communication system, characterized in that the mobile communication system controls so as to measure the distance. 3. A mobile communication system having a plurality of wireless base stations for providing communication services by wireless signal communication to wireless terminals entering respective service areas, wherein a wireless signal including specific spatial information is transmitted. A wireless communication device comprising: a plurality of wireless base stations; and a receiving unit configured to receive a wireless signal transmitted from the specific signal transmitting unit. Incoming call notifying means for notifying an incoming call in one of forms, and when a radio signal including the specific spatial information is received by the receiving means, a subsequent incoming call to the incoming call notifying means other than ringing A mobile communication system, comprising: control means for performing control so as to perform notification in a notification mode. 4. The mobile communication system according to claim 3, wherein the control unit receives a call with a ringing sound to the incoming call notification unit when the reception unit receives a radio signal including other spatial information. A mobile communication system characterized by controlling so as to notify the mobile terminal. 5. A mobile communication system having a plurality of wireless base stations for providing communication services by wireless signal communication to wireless terminals entering respective service areas, wherein a wireless signal including specific spatial information is transmitted. A wireless communication device comprising: a wireless communication device comprising: a plurality of wireless base stations; and a receiving unit configured to receive a wireless signal transmitted from the specific signal transmitting unit. A communication means for performing communication in any one of communication forms, and when a radio signal including the specific spatial information is received by the reception means, the subsequent communication is performed with the communication means in a communication form other than voice. Control means for controlling the mobile communication system. 6. The mobile communication system according to claim 5, wherein the control unit performs voice communication with the communication unit when the reception unit receives a radio signal including other spatial information. A mobile communication system characterized by performing control as described above. 7. A mobile communication system having a plurality of radio base stations for providing communication service by radio signal communication to radio terminals entering respective service areas, wherein a radio signal including specific spatial information is provided. The wireless terminal further comprises: a receiving unit that receives a wireless signal transmitted from the plurality of wireless base stations and the specific signal transmitting unit; and a wireless signal to at least the wireless base station. Transmitting means for transmitting; and control means for controlling at least the transmitting means to stop transmitting the wireless signal when the receiving means receives a wireless signal including the specific spatial information. A mobile communication system characterized by the above-mentioned. 8. The mobile communication system according to claim 7, wherein the control unit transmits the radio signal to at least the transmission unit when the reception unit receives a radio signal including other spatial information. A mobile communication system, characterized in that the mobile communication system is controlled to start.