JPH11252627A - Mobile communication system and mobile communication method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the mobile communication system and the mobile communication method where the operability of a mobile body is enhanced. SOLUTION: Reception direction data and distance data are calculated between a mobile terminal 30 and a radio base station 20 based on each time information when the radio base station 20 receives a radio signal from the mobile terminal 30 for pluralities of number of times, and the result is displayed on the mobile terminal 30 based on track element and received time. Since the user can improve the reception level based on this display, the operability of the mobile terminal 30 is enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication system and a mobile communication method, and more particularly, to a plurality of base stations each having an antenna forming an area in which radio signals can be transmitted and received, and the antenna in each area. TECHNICAL FIELD The present invention relates to a mobile communication system and a mobile communication method including a base station and a mobile unit capable of transmitting and receiving radio signals via the base station.

[0002]

2. Description of the Related Art As a conventional mobile communication system, a mobile communication system disclosed in Japanese Patent Application Laid-Open No. 8-294160 is known. In this mobile communication system, when the communication state between the mobile unit and the radio base station becomes difficult, the mobile communication system automatically switches to another radio base station having a higher reception level to maintain the communication state.

[0003]

In the above-mentioned conventional mobile communication system, when the communication state between the mobile and the radio base station is poor, the direction and distance from the radio base station are not known in the mobile. Therefore, the reception level could not be increased, and the operability of the moving object was not good.

The present invention has been made in view of the above problems, and has as its object to provide a mobile communication system and a mobile communication method capable of improving the operability of a mobile object.

[0005]

In order to achieve the above object, the invention according to claim 1 comprises a plurality of base stations provided with antennas forming an area in which radio signals can be transmitted and received, and the antenna in each area. A mobile communication system comprising a base station and a mobile unit capable of transmitting and receiving a radio signal through the base station, wherein the base station detects a relative positional relationship between the mobile unit and the antenna in the area. A position detecting unit that notifies the user of the detected positional relationship, wherein the mobile unit acquires the positional relationship notified from the positional relationship notifying unit and notifies the user of the positional relationship. It is configured to include a user notification means.

[0006] That is, the positional relationship detecting means is a mobile station capable of transmitting and receiving radio signals to and from the base station via the antennas in each area. The relative positional relationship between the body and the antenna is detected. When the positional relationship detected by the positional relationship notifying unit is notified to the mobile unit, the user notifying unit acquires the positional relationship notified from the positional relationship notifying unit and notifies the user. Then, the user having the moving body moves the moving body based on the notified positional relationship, and improves the reception level to secure the communication connection.

[0007] The base station includes a plurality of antennas forming an area in which radio signals can be transmitted and received.
It is sufficient that wireless signals can be transmitted and received to and from the same base station in each area, and each area may have an overlapping portion or each area may be independent. For example, a PHS terminal, a mobile phone terminal, or the like is included as the moving body here.

[0008] The present invention is limited to those communication terminals that are currently widely used from the viewpoint of improving operability when transmitting and receiving radio signals in a mobile communication system in a broad sense. Not something.

The positional relationship detecting means may be any device capable of detecting the relative positional relationship between the mobile unit and the antenna in the area. When the wireless signal transmitted from the mobile unit is received by a plurality of antennas, The same positional relationship may be detected based on the strength of the reception level at each antenna, or the radio signal transmitted from the mobile unit may be received by the antenna multiple times, and the time at the time of each reception and the same mobile unit may be used. The same positional relationship may be detected based on the trajectory.

[0010] As an example of the configuration of the positional relation detecting means in the latter case, the invention according to claim 2 is the mobile communication system according to claim 1, wherein the positional relation detecting means wirelessly communicates with the moving body. It is configured to detect the direction in which the reception level of the radio signal transmitted from the mobile body increases based on the time information and the orbital element when the signal is received a plurality of times.

That is, the positional relationship detecting means receives the radio signal from the mobile object a plurality of times, and adjusts the reception level of the radio signal transmitted from the mobile object based on the time information and the orbital element at each reception. Detect the ascending direction.

The invention according to claim 3 is an example of the positional relationship detected by the positional relationship detecting means.
3. The mobile communication system according to claim 2, wherein said positional relationship detecting means detects a receiving direction of a radio signal transmitted from said mobile object and a distance between said mobile object and said mobile object. There is.

That is, the positional relationship detecting means detects a direction in which the antenna receives a radio signal transmitted from a mobile unit, and a distance between the mobile unit and the mobile unit detected from a reception level at this time. .

The positional relation notifying means may be any means capable of notifying the positional relation detected by the positional relation detecting means, and may be a means for displaying a positional relation by a moving body, a means for voice guidance, and the like. It may be.

The user notifying means may be any means that can acquire the positional relationship notified from the positional relationship notifying means and notify the user of the positional relationship. A display or a voice guide may be provided.

As an example of the configuration of the positional relation notifying means and the positional relation acquiring means in the former case, the invention according to claim 4 is the mobile communication system according to any one of claims 1 to 3, The location relation notifying means is:
A positional relation display control means for outputting a positional relation display control signal based on a relative positional relation between the moving body and the antenna in the area detected by the positional relation detecting means; Is configured to include positional relationship display means for performing positional relationship display based on the positional relationship display control signal output from the positional relationship display control means.

That is, when the positional relationship display control means outputs a positional relationship display control signal based on the positional relationship detected by the positional relationship detecting means, the positional relationship display means:
The positional relationship is displayed based on the positional relationship display control signal.

On the other hand, as an example of the configuration of the positional relationship notifying means and the positional relationship obtaining means in the latter case, the invention according to claim 5 is the mobile communication system according to any one of claims 1 to 3 above. In the above, the positional relationship notifying means includes: a voice processing guide control means for outputting a voice processing guide control signal based on a relative positional relationship between the moving body and the antenna in the area detected by the positional relationship detecting means. And the user notifying means includes audio processing guide means for performing audio processing guidance based on the audio processing guide control signal output from the audio processing guide control means.

That is, when the voice processing guide control means outputs a voice processing guide control signal based on the positional relationship detected by the positional relation detecting means, the voice processing guide means outputs the voice processing guide control signal based on the voice processing guide control signal. Perform audio processing guide.

The method of performing mobile communication in this manner is not necessarily limited to the above-described system. As an example, the invention according to claim 6 is directed to a method of forming a plurality of areas forming an area in which radio signals can be transmitted and received. When the base station equipped with the antenna detects the relative positional relationship between the mobile object capable of transmitting and receiving radio signals to and from the base station via the antenna in each area and the antenna and notifies the mobile station of the relative position, The body is configured to acquire the positional relationship notified from the base station and notify the user. That is, the present invention is not necessarily limited to the form of the system, and is effective as a method.

[0021]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a mobile communication system according to an embodiment of the present invention.

The mobile communication system 10 includes a radio base station 20 having areas in which radio signals can be transmitted and received, a mobile terminal 30 capable of transmitting and receiving radio signals to and from the radio base station 20 in each area, and a radio base station 20. A mobile communication exchange 40 for controlling radio signals to be transmitted and received, and when the mobile terminal 30 requests connection to the radio base station 20 within the area, the mobile terminal 30 moves in response to a connection instruction from the mobile communication exchange 40. A communication connection between the terminal 30 and the wireless base station 20 is started to transmit and receive a wireless signal.

The radio base station 20 has an antenna 21 having an area capable of transmitting and receiving radio signals to and from the mobile terminal 30.
And performs transmission / reception of radio signals when the mobile terminal 30 is within this area.

The mobile terminal 30 is provided with an antenna 31 capable of transmitting and receiving radio signals to and from the radio base station 20. When making a communication request via the radio interface, the mobile terminal 30
Select the one with the highest reception level from 0 and send it.
After the communication connection, the wireless signal is transmitted and received.

The mobile terminal 30 is provided with a positional relationship indicator (not shown) for displaying a direction in which the reception level of a radio signal transmitted from the mobile terminal 30 in the radio base station 20 increases based on reception direction data and distance data described later. It has. In this sense, the positional relationship display constitutes a user notification unit according to the present invention.

Therefore, the user can improve the reception level by moving the mobile terminal 30 in the direction displayed on the positional relationship display.

The mobile communication exchange 40 includes a reception area connection notifying device 41 for detecting the direction in which the reception level of the radio signal transmitted from the mobile terminal 30 increases and informing the mobile terminal 30 of the increase. If requested,
If necessary, the direction in which the reception level increases is detected and notified.

The receiving area connection notifying device 41 includes a location registration management section 41a connected to the radio base station 20, and a location registration information conversion section connected to enable input of location registration information managed by the location registration management section 41a. Unit 41b, a reception direction distance control unit 41c connected so as to be able to input the control data converted by the position registration information conversion unit 41b, and between the reception direction distance control unit 41c and the position registration management unit 41a. And a connected receiving direction distance notification unit 41d.

With this configuration, as shown in FIG. 2, when the reception level of a communication request issued from the mobile terminal 30 to the radio base station 20 is weak (step S1).
00, step S110), decodes and stores the position registration information based on the time information and the orbital element (step S12).
0). This position registration information is converted into control data (step S130), and receiving direction data and distance data are calculated based on the control data (step S14).
0), these data are temporarily stored and then notified to the mobile terminal 30 (Step S150, Step S16)
0).

FIG. 3 is a block diagram showing the configuration of the reception area connection notification device 41. Location registration management unit 41
a is an information input unit 41a1 arranged to be able to input time information and track elements when the radio base station 20 receives a radio signal from the mobile terminal 30 a plurality of times, a reception direction distance notification unit 41c, and a radio base station. Display unit 4 connected to station 20
1a2, and decodes, stores and manages the position information of the mobile terminal 30 based on each time information and the orbital element when the radio signal is received from the mobile terminal 30 a plurality of times, and receives a reception direction distance notification unit. Based on the reception direction data and the distance data stored in 41d, the information is displayed on the positional relation display provided in the mobile terminal 30.

The position registration information conversion section 41b includes a decoder circuit section 41b1 connected between the information input section 41a1 and the reception direction distance control section 41c.
The position registration information managed in step (1) is converted into position registration data for control and output to the reception direction distance control unit 41c.

The receiving direction distance control section 41c includes a processor circuit section 41c1 connected between the decoder circuit section 41b1 and the receiving direction distance notifying section 41d, and receives control position registration data input from the decoder circuit section 41b1. The reception direction data and the distance data of the mobile terminal 30 are calculated based on the processor control based on the processor control.

The receiving direction distance notifying section 41d includes a register section 41d1 connected to the processor circuit section 41c1 and a notifying section 41d2 connected to the display section 41a2, and receives the receiving direction data calculated by the processor circuit section 41c1. While temporarily storing the distance data, the display unit 41a
2 is notified that the reception direction data and the distance data have been calculated.

Accordingly, a position registration manager 41a for decoding position registration information from time information and orbital elements, a position registration information converter 41b for converting position registration information into position registration data for control, and a position registration controller for control. The receiving direction distance control unit 41c that calculates the receiving direction data and the distance data of the mobile terminal 30 based on the data, and the receiving direction distance notification unit 41d that stores the receiving direction data and the distance data are referred to in the present invention in this sense. It constitutes a positional relationship detecting means.

The receiving direction distance notifying unit 41d for notifying the display unit 41a2 that the receiving direction data and the distance data have been calculated, and the mobile terminal 3 based on these data.
In this sense, the position registration management unit 41a that is displayed on the position relation display unit provided in the unit 0 constitutes a position relation notification unit according to the present invention.

In this embodiment, when the reception level of a communication request from the mobile terminal 30 to the radio base station 20 is weak, the mobile terminal 30 displays the receiving direction and the distance from the radio base station 20. However, any configuration may be used as long as it can notify the mobile terminal 30 of at least the receiving direction and the distance from the radio base station 20. As shown in FIG. 4, a voice processing guide unit 41a3 is provided instead of the display unit 41a2. It is also possible to arrange and notify the mobile terminal 30 of the receiving direction and distance from the radio base station 20 by voice guide.

Next, in the mobile communication system 10 according to the present embodiment, the direction in which the reception level of the radio signal transmitted from the mobile terminal 30 rises is detected, and
Will be described with reference to FIG.

It is determined whether or not the reception level of a communication request from mobile terminal 30 to radio base station 20 is weak (steps S200, S210). If it is not weak, the communication connection is started as it is, and if it is weak, the following procedure is performed to notify the mobile terminal 30 of the positional relationship with the radio base station 20. When the reception level is “0”, it is notified that “out of service”.

The information input unit 41a1 measures each time information and orbital element when the radio base station 20 receives a radio signal from the mobile terminal 30 a plurality of times (step S220), and outputs the location registration information of the mobile terminal 30. Decrypt and store (step S230). When the decoder circuit section 41b1 decodes and converts the position registration information into position registration data for control (step S240), the processor circuit section 41c1 performs
The receiving direction data and the distance data between the mobile terminal 30 and the wireless base station 20 are calculated based on the control position registration data (step S250).

When the register section 41d1 stores these data (step S260), the notification section 41d2 notifies the display section 41a2 of the completion of the data storage (step S260).
270), the reception direction data and the distance data are displayed on the positional relationship display provided in the mobile terminal 30 (step S280).

As described above, the radio base station 20 is
0 to calculate the receiving direction data and the distance data between the mobile terminal 30 and the wireless base station 20 based on the time information and the orbital element when the wireless signal is received a plurality of times.
When displayed at 0, the user can improve the reception level based on this display, so that the operability of the mobile terminal 30 can be improved.

[0042]

As described above, the present invention can provide a mobile communication system capable of improving the operability of a mobile object.

According to the second aspect of the present invention, it is possible to detect the direction in which the reception level of the radio signal transmitted from the mobile increases by only receiving the radio signal from the mobile with one antenna. it can.

Further, according to the invention of claim 3,
A relative positional relationship between the moving object and the antenna in the area can be detected as a distance between a receiving direction of a radio signal and the moving object.

Further, according to the invention of claim 4,
The relative positional relationship between the moving object and the antenna in the area can be displayed on the moving object.

Further, according to the fifth aspect of the present invention,
The relative position relationship between the moving object and the antenna in the area can be notified to the moving object by voice.

Further, according to the invention of claim 6,
A mobile communication method capable of improving operability of a mobile can be provided.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a mobile communication system according to the present embodiment.

FIG. 2 is a flowchart illustrating an outline of a positional relationship notification process in the reception area connection notification device.

FIG. 3 is a block diagram illustrating a configuration of a reception area connection notification device.

FIG. 4 is a block diagram showing a configuration of a mobile communication system according to a modification.

FIG. 5 is a flowchart showing a positional relationship notification process in the reception area connection notification device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Mobile communication system 20 Radio base station 30 Mobile terminal 40 Mobile communication switch 41 Reception area connection notification device 41a Location registration management unit 41b Location registration information conversion unit 41c Reception direction distance control unit 41d Reception direction distance notification unit

Claims (6)

[Claims] 1. A mobile station comprising: a plurality of base stations each having an antenna that forms an area in which radio signals can be transmitted and received; and a mobile body that can transmit and receive radio signals to and from the base station via the antenna in each area. Body communication system, wherein the base station is a positional relation detecting means for detecting a relative positional relation between the moving object and the antenna in the area, and a positional relation notifying means for notifying the detected positional relation, A mobile communication system comprising: a user notification unit that acquires the positional relationship notified from the positional relationship notification unit and notifies the user of the positional relationship. 2. The mobile communication system according to claim 1, wherein the positional relationship detecting means performs the same movement based on each time information and a track element when a wireless signal is received from the mobile body a plurality of times. A mobile communication system for detecting a direction in which a reception level of a radio signal transmitted from a body increases. 3. The mobile communication system according to claim 1, wherein said positional relationship detecting means includes: a receiving direction of a radio signal transmitted from said mobile object; A mobile communication system characterized by detecting a distance between the two. 4. The mobile communication system according to any one of claims 1 to 3, wherein the positional relation notifying means is configured to communicate with the moving body in the area detected by the positional relation detecting means. A positional relationship display control unit that outputs a positional relationship display control signal based on the relative positional relationship with the antenna, wherein the user notifying unit includes a positional relationship display control signal output from the positional relationship display control unit. A mobile communication system comprising: a positional relationship display unit for performing a positional relationship display based on the information. 5. The mobile communication system according to any one of claims 1 to 3, wherein the positional relationship notifying means is configured to communicate with the moving body in the area detected by the positional relationship detecting means. And a voice processing guide control unit that outputs a voice processing guide control signal based on a relative positional relationship with the antenna. The user notifying unit includes a voice processing guide control signal output from the voice processing guide control signal. A mobile communication system comprising voice processing guide means for performing voice processing guide based on the voice processing guide. 6. A base station provided with a plurality of antennas forming an area capable of transmitting and receiving radio signals, comprising: a mobile unit capable of transmitting and receiving radio signals to and from the base station via the antennas in each area; A mobile communication method characterized in that upon detecting a relative positional relationship and notifying the mobile unit, the mobile unit acquires the positional relationship notified from the base station and notifies the user of the positional relationship.