JP2011114738A - Radio communication system, and information deployment method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radio communication system and information deployment method, wherein a base station and each of mobile stations within a trunking communication range can acquire positional information of mobile stations outside the trunking communication range. <P>SOLUTION: In a radio communication system, trunking communication is performed between a plurality of mobile stations inside a control area range of a base station via the base station, and conventional communication is performed between a mobile station inside the control area range and a mobile station outside the control area range without via the base station. In the radio communication system, the mobile station outside the control area range of the base station is caused to transfer positional information of the mobile station itself and identification information specific for the mobile station itself to the mobile station inside the control area range of the base station. The mobile station inside the control area range of the base station is caused to transfer, to the base station, the positional information and the identification information transferred from the mobile station outside the control area range of the base station. The base station is caused to transfer, to all the mobile stations inside the control area range of the base station, the positional information and the identification information transferred from the mobile station inside the control area range of the base station. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a wireless communication system and an information deployment method.

Conventionally, a wireless communication system including one base station and a plurality of mobile stations (for example, wireless communication terminals such as in-vehicle devices) is known. In this wireless communication system, each mobile station is under the control of a base station, and communication between mobile stations is performed by relaying the base station.
Therefore, for example, when a mobile station moves outside the communication area of the base station, communication with the base station is impossible, and communication between mobile stations relaying the base station becomes impossible.

  In response to the above-described problem, for example, in Patent Document 1, in a wireless communication system including one base station and a plurality of mobile stations, a relay communication mode (trunking communication) via a base station and between mobile stations are disclosed. A technique is disclosed in which switching control with the direct communication mode (conventional communication) can be easily and reliably performed. Specifically, when a mobile station moves out of the base station control area, it automatically switches from the relay communication mode to the direct communication mode, and when moving into the base station control area, the direct communication mode By performing automatic switching control to the relay communication mode, it is possible to eliminate the troublesome manual switching. In this technique, position information of each mobile station is acquired based on GPS information acquired by a GPS antenna, and it is determined whether the mobile station is within or outside the base station control area.

  Further, for example, in Patent Document 2, by effectively linking both road-to-vehicle communication performed between a roadside communication device (base station) and a vehicle-mounted communication device (mobile station) and vehicle-to-vehicle communication performed between vehicle-mounted communication devices. In addition, a technology for obtaining a wide range of information required by a traveling vehicle in real time and improving road traffic safety and user convenience is disclosed. Specifically, road-to-vehicle communication and vehicle-to-vehicle communication are performed using two different wireless channels, and road-to-vehicle communication and vehicle-to-vehicle communication are performed as appropriate by switching the wireless channel in response to changes in the communication situation caused by the movement of the vehicle. Can be switched. That is, when the vehicle is out of the wireless communication area of the roadside communication device, roadside information can be reliably captured by switching to the wireless channel for inter-vehicle communication and performing communication. In this technology, the in-vehicle communication device capable of road-to-vehicle communication (trunking communication) transmits the position information of its own station to the roadside communication device. It is possible to grasp whether it is located. Then, the roadside communication device transmits the position information acquired from each vehicle-mounted communication device to the vehicle-mounted communication device that can communicate, so that the vehicle-side communication devices can also grasp each other's position information. is there.

  Further, for example, Patent Literature 3 discloses a technology that enables a mobile station that has moved out of the communication area of the base station to directly communicate with a mobile station within the communication area of the base station. The technique disclosed in Patent Document 3 will be described in detail with reference to FIGS.

FIG. 5 is a conceptual explanatory diagram of the wireless communication system 2 according to the related art.
As shown in FIG. 5, the wireless communication system 2 according to the prior art is configured with one base station 300 and three mobile stations (mobile station 400A, mobile station 400B, and mobile station 400C).
Each of the mobile station 400A, the mobile station 400B, and the mobile station 400C is under the control of the base station 300, and relays the base station 300 to perform communication (trunking communication: F1 communication) between the mobile stations.

  Here, since each of the mobile station 400A and the mobile station 400B is within the communication area N of the base station 300, these mobile stations can perform F1 communication relaying the base station 300. On the other hand, the mobile station 400C cannot communicate with the base station 300 because the mobile station 400C has moved out of the communication area N of the base station 300. Therefore, F1 communication with other mobile stations that relay the base station 300 is impossible. It becomes.

  Therefore, in this prior art, in addition to the original communication function by F1 communication, a communication function that temporarily enables direct communication (conventional communication: F2 communication) between the mobile stations is added to each mobile station. . Thereby, the mobile station 400C outside the communication area N can directly communicate with the mobile station 400B in the vicinity by F2 communication without being isolated.

FIG. 6 is a block diagram showing a schematic configuration of a base station 300 according to the prior art.
As shown in FIG. 6, the base station 300 according to the prior art includes a reception antenna 11, a reception demodulation unit 12, a baseband processing unit 13, a modulation unit 14, a transmission unit 15, and a transmission antenna 16. , And is configured.

  The base station 300 receives a transmission signal transmitted from the mobile station by F1 communication using the reception antenna 11, and performs processing such as demodulation and decoding on the received signal by the reception demodulation unit 12. The signal demodulated and decoded by the reception demodulator 12 is processed together with a baseband signal such as mobile station control data by the baseband processor 13, and a digital signal of a predetermined system is processed by the modulator 14. Modulation processing is performed. The signal subjected to the digital modulation processing is output to the transmission unit 15 and transmitted to each mobile station by the transmission antenna 16 at a predetermined level.

FIG. 7 is a block diagram showing a schematic configuration of a mobile station 400 according to the prior art.
As shown in FIG. 7, the mobile station 400 according to the related art includes a data generation unit 21, a modulation unit 22, a transmission unit 23, a transmission antenna 24, a reception antenna 25, a reception demodulation unit 26, Reception level detection unit 27, bit error rate detection unit 28, memory unit 33, first determination unit 34, second determination unit 35, third determination unit 36, display unit 38, audio A unit 39, an input unit 40, and a control unit 41 are provided.

  The mobile station 400 generates data (signals) to be transmitted to the mobile station of the communication partner, such as microphone sound and required data, in the data generation unit 21, and the modulation unit 22 applies digital modulation of a predetermined method to the transmission signal. Process. The signal subjected to the digital modulation processing is output to the transmission unit 23 and transmitted to the base station 300 by the transmission antenna 24 at a predetermined level.

  Further, the mobile station 400 receives a transmission signal transmitted from the base station 300 by F1 communication and a transmission signal transmitted from another mobile station by F2 communication at the reception antenna 25, and according to an instruction from the control unit 41, The reception demodulation unit 26 performs processing such as demodulation and decoding on the received signal. The reception level detection unit 27 detects the reception level of the signal subjected to demodulation and decoding processing by the reception demodulation unit 26, and the bit error rate detection unit 28 detects the bit error rate (BER).

  The data of the reception level detected by the reception level detection unit 27 and the bit error rate detected by the bit error rate detection unit 28 are temporarily stored in the memory unit 33, and are set in advance by the first determination unit. Compared to level or reference value. The first determination unit determines that communication with the counterpart station that transmitted the received signal is impossible when the reception level is lower than the reference level or when the bit error rate is higher than the reference value.

In addition, the second determination unit 35 compares the reception level or bit error rate in signals transmitted by a plurality of mobile stations in the area, and selects the best mobile station as a communication partner with the own station. Further, it is also determined whether the reception level is higher than the reference level or the bit error rate is lower than the reference value, and it is determined whether the partner mobile station can communicate with the own station.
Further, the third determination unit 36 determines whether the request for direct communication (F2 communication) issued by a mobile station outside the service area designates the own station from the ID or the station specifying data.

If the first determination unit 34 determines that communication with the base station 300 is impossible, the display unit 38 displays that the communication area N is out of range. When the first determination unit 34 determines that the communication area N is out of the service area N, a sound or an alarm sound to that effect is emitted from the sound unit 39.
When a mobile station outside the service area directly designates a partner mobile station with which communication is to be performed, an input unit 40 inputs ID or station identification data.
The control part 41 controls what is shown in the figure such as each determination part, memory part or display part based on each detection result.

  Thus, in the wireless communication system according to Patent Document 3, when a mobile station in the communication area N area is likely to go out of the communication area N area, by monitoring the reception level and the bit error rate, It is possible to automatically switch to F2 communication (conventional communication).

JP 2001-95043 A JP 2008-205817 A JP 2002-281557 A

As in the technique disclosed in Patent Document 3, communication is performed by using conventional communication with a mobile station in the area within the area within the area where F1 communication (trunking communication) is possible. It was possible to do.
However, for example, there has not been a technique for applying the technique disclosed in Patent Document 2 for sharing position information between a base station and each mobile station using trunking communication to the conventional communication.

  Therefore, each mobile station within the base station and the trunking communication area cannot accurately grasp the position of the mobile station that has gone out of the area, and the mobile station outside the area is completely isolated. It had become.

  It is an object of the present invention to provide a radio communication system and an information expansion method in which a base station and each mobile station in a trunking communication area can acquire position information of mobile stations outside the trunking communication area.

  The invention according to claim 1 is made in order to achieve the above object, trunking communication performed via the base station by a plurality of mobile stations within the control area of the base station, A mobile communication system that performs conventional communication between a mobile station that is within the control area of the base station and a mobile station that is outside the control area of the base station without going through the base station, the mobile communication system The station includes position information acquisition means for acquiring the position information of the own station, and the mobile station outside the control area area of the base station receives the position information of the own station acquired by the position information acquisition means and the identification unique to the station. The information is transmitted to the mobile station capable of conventional communication within the control area of the base station by conventional communication, and the mobile station within the control area of the base station Position information and identification information transmitted from a mobile station outside the control area is transmitted to the base station by trunking communication, and the base station is transmitted from a mobile station within the control area of the base station. The information and the identification information are transmitted to all mobile stations within the control area of the base station by trunking communication.

  According to a second aspect of the present invention, in the wireless communication system according to the first aspect, a mobile station within the control area of the base station receives the location information and identification information transmitted from the base station as the base station. It is transmitted to a mobile station capable of conventional communication outside the control area by conventional communication.

  According to a third aspect of the present invention, in the wireless communication system according to the first or second aspect, the position information acquisition unit includes a gyro sensor and a vehicle speed sensor.

  The invention according to claim 4 is the trunking communication performed via the base station by a plurality of mobile stations in the control area range of the base station, the mobile station in the control area range of the base station, An information deployment method using a wireless communication system for performing conventional communication with a mobile station outside the base station control area without going through the base station, wherein the mobile station is outside the base station control area However, the position information of the own station acquired by the position information acquisition means for acquiring the position information of the own station and the identification information unique to the own station are transferred to the mobile station within the control area of the base station capable of conventional communication by conventional communication. Transmitting the mobile station within the control area of the base station, the position information transmitted from the mobile station outside the control area of the base station and the mobile station Transmitting another information to the base station by trunking communication, and the base station transmits the position information and the identification information transmitted from the mobile station within the control area of the base station. And a step of transmitting to all mobile stations within the control area range by trunking communication.

  According to a fifth aspect of the present invention, in the information expansion method according to the fourth aspect, a mobile station within the control area of the base station receives the location information and identification information transmitted from the base station as the base station. A conventional communication to a mobile station outside the control area capable of conventional communication.

  ADVANTAGE OF THE INVENTION According to this invention, the base station and each mobile station in a trunking communication area can provide the radio | wireless communications system and the information expansion | deployment method which can acquire the positional information on the mobile station outside a trunking communication area.

1 is a conceptual explanatory diagram of a wireless communication system 1 according to the present embodiment. It is a block diagram which shows schematic structure of the base station 100 which concerns on this embodiment. It is a block diagram which shows schematic structure of the mobile station 200 which concerns on this embodiment. It is the flowchart shown about the example of the communication switching process performed within the radio | wireless communications system 1 which concerns on this embodiment. It is a conceptual explanatory drawing of the radio | wireless communications system 2 which concerns on a prior art. It is a block diagram which shows schematic structure of the base station 300 which concerns on a prior art. It is a block diagram which shows schematic structure of the mobile station 400 based on a prior art.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a conceptual explanatory diagram of a wireless communication system 1 according to the present embodiment.
As shown in FIG. 1, the radio communication system 1 according to this embodiment includes one base station 100 and six mobile stations (mobile station 200A, mobile station 200B, mobile station 200C, mobile station 200D, mobile station 200E, mobile station Station 200F). In the wireless communication system 1, each mobile station receives a signal from the GPS satellite S and obtains position information thereof.
The mobile station 200A, the mobile station 200B, the mobile station 200C, the mobile station 200E, and the mobile station 200F are each under the control of the base station 100, and communicate with each other via the base station 100 (F1 communication). Do.

Here, when the mobile station 200A is moved out of the communication area N of the base station 100, the mobile station 200B, the mobile station 200C, the mobile station 200E, and the mobile station 200F are within the communication area N of the base station 100, respectively. Therefore, these mobile stations can perform F1 communication that relays the base station 100.
In contrast, the mobile station 200D and the mobile station 200A that has moved out of the communication area N cannot communicate with the base station 100 because they are out of the communication area N of the base station 100. F1 communication with other mobile stations becomes impossible.

  Therefore, each mobile station according to the present embodiment has a communication function that temporarily enables direct communication (F2 communication) between mobile stations in addition to the original communication function by F1 communication. Thereby, the mobile station 200A and the mobile station 200D outside the communication area N can directly communicate with the mobile station 200B and the mobile station 200C in the vicinity without being isolated by F2 communication.

FIG. 2 is a block diagram illustrating a schematic configuration of the base station 100 according to the present embodiment.
As illustrated in FIG. 2, the base station 100 according to the present embodiment includes a reception antenna 101, a reception unit 102, a baseband processing unit 103, a transmission unit 104, a transmission antenna 105, and a determination unit 106. , And a control unit 107.

The base station 100 receives a transmission signal transmitted from the mobile station by F1 communication using the reception antenna 101, and performs processing such as demodulation and decoding on the received signal by the reception unit 102. Here, the transmission signal transmitted from the mobile station by F1 communication is obtained by performing predetermined modulation processing on required data including microphone sound and identification information unique to the local station. The signal subjected to processing such as demodulation and decoding by the reception unit 102 is processed by the baseband processing unit 103 together with the baseband signal such as mobile station control data, and the transmission unit 104 performs digital modulation of a predetermined method. Processing is performed. The signal subjected to the digital modulation processing is transmitted to each mobile station by the transmitting antenna 105 at a predetermined level.
In addition, the base station 100 causes the determination unit 106 to determine the mobile station closest to the mobile station when the mobile station outside the communication area N wants to perform F2 communication with the mobile station within the communication area N.

The control unit 107 includes, for example, a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), and the like, and controls each unit of the base station 100.
The CPU controls the entire base station 100 by reading out the processing program stored in the ROM, developing it in the RAM, and executing it.
The RAM expands a processing program executed by the CPU in a program storage area in the RAM, and stores input data and a processing result generated when the processing program is executed in the data storage area.
The ROM is composed of, for example, a semiconductor memory and stores a processing program, data, and the like in advance.

FIG. 3 is a block diagram illustrating a schematic configuration of the mobile station 200 according to the present embodiment.
As shown in FIG. 3, the mobile station 200 includes a reception antenna 201, a reception unit 202, a second control unit 203, a transmission unit 204, a transmission antenna 205, a reception level detection unit 206, an error rate. Detection unit 207, GPS antenna 208, GPS reception unit 209, gyro sensor detection unit 210, vehicle speed detection unit 211, determination unit 212, display unit 213, microphone 214, speaker 215, first And a control unit 216.

  The mobile station 200 generates data (signals) to be transmitted to the mobile station of the communication partner, such as required data including microphone sound and identification information unique to the mobile station, and the transmission unit 204 applies a predetermined method to the transmission signal. The digital modulation process is performed. The signal subjected to the digital modulation processing is transmitted to the base station 100 by the transmitting antenna 205 at a predetermined level.

  In addition, the mobile station 200 receives a transmission signal transmitted from the base station 100 through F1 communication and a transmission signal transmitted from another mobile station through F2 communication at the reception antenna 201, and receives the received signal The receiving unit 202 performs processing such as demodulation and decoding. The signal subjected to processing such as demodulation and decoding by the reception unit 202 is subjected to digital modulation processing and processing for switching the signals of F1 and F2 by the second control unit 203, and baseband signal processing is performed. The signal subjected to the demodulation and decoding processing by the receiving unit 202 has a reception level (RSSI) at the reception level detection unit 206 and an error rate (BER etc.) at the error rate detection unit 207, respectively. Detected.

  In addition, the mobile station 200 receives a GPS signal transmitted from the GPS satellite S by the GPS antenna 208, and the GPS receiving unit 209 detects the position information of the own station based on the received GPS signal. In addition, the gyro sensor detection unit 210 detects the acceleration, inclination (movement state), and the like of the apparatus by a gyro sensor having an acceleration sensor, an inclination sensor, and the like. Further, in the vehicle speed detection unit 211, the vehicle speed sensor detects the traveling speed and the traveling direction of the vehicle. Thus, the GPS receiving unit 209, the gyro sensor detection unit 210, and the vehicle speed detection unit 211 have a function as a position information acquisition unit that acquires the position information of the own station.

  The mobile station 200 also has a determination table held in advance by the determination unit 212 based on various information acquired by the reception level detection unit 206, the GPS reception unit 209, the gyro sensor detection unit 210, and the vehicle speed detection unit 211. The vehicle position is measured by referring to. The vehicle position measured by the determination unit 212 is displayed on the display unit 213. Further, the display unit 213 displays a warning indicating that “the local station is about to go out of the F1 communication area” and “the local station is out of the F1 communication area”.

The microphone 214 converts voice emitted from the user into a voice signal and outputs the voice signal to the first control unit 216. The audio signal output to the first control unit 216 is output to the transmission unit 204 via the second control unit 203 and subjected to digital modulation processing of a predetermined method.
The speaker 215 amplifies an audio signal (for example, an audio signal included in the received radio wave) output through the first control unit 216 after being subjected to various processes by the second control unit 203, and outputs audio based on the amplified signal. Output.

The first control unit 216 includes, for example, a CPU, a RAM, a ROM, and the like, and controls each unit of the mobile station 200.
The CPU reads the processing program stored in the ROM, develops it in the RAM, and executes it to control the entire mobile station 200.
The RAM expands a processing program executed by the CPU in a program storage area in the RAM, and stores input data and a processing result generated when the processing program is executed in the data storage area.
The ROM is composed of, for example, a semiconductor memory and stores a processing program, data, and the like in advance.

  FIG. 4 is a flowchart illustrating an example of a communication switching process performed in the wireless communication system 1 according to the present embodiment.

First, the premise for performing the processing will be described.
The mobile station 200A is within the trunking communication (F1 communication) area and performs F1 communication with the base station 100.
In the determination unit 212, the mobile station 200A uses the reception level detection unit 206, the GPS reception unit 209, the gyro sensor detection unit 210, and the vehicle speed detection unit 211 to check the determination table held in advance. In addition, the position information of the own station is acquired, and the acquired position information is periodically transmitted to the base station 100. Note that the process of periodically transmitting the acquired location information and identification information to the base station 100 is performed not only by the mobile station 200A but also by all mobile stations within the F1 communication area. Can acquire location information of all mobile stations in the area.
Base station 100 transmits the position information and identification information sent from each mobile station to all mobile stations in the area. By doing so, it becomes possible for mobile stations in the area area to grasp each other's positional information via the base station 100. The location information of other stations acquired by each mobile station is managed by the first control unit 216 together with the identification information. In this embodiment, since the identification information of the own station is added in all transmissions, the receiving station can recognize which station the received information is.
As described above, by using the gyro sensor detection unit 210 and the vehicle speed detection unit 211 in addition to the GPS reception unit 209 as position information acquisition means, for example, in a place where GPS information such as a place with a roof or behind a building cannot be received. Also, position information can be acquired.

Next, processing when the mobile station 200A in the F1 communication area moves outside the area will be described with reference to FIG.
First, as shown in FIG. 4, when the mobile station 200A is about to go out of the F1 communication area, the reception level, error rate, and location information acquisition means automatically informs the user of that location. Recognize (step S101).

  When it is recognized that it is likely to go out of the F1 communication area, the display unit simultaneously notifies the base station 100 that it is likely to go out of the area including position information and identification information. A warning display to that effect is displayed on 213 (step S102). Note that the operation process for recognizing that it is about to go out of the area is performed with reference to the determination table held by the determination unit 212. When the signal level transmitted from the base station 100 decreases, such as when there is a building or a mountain between the determination unit 212 and the base station 100 even when the radio wave from the base station 100 is clearly reachable, Judging not only the location information but also the reception level and error rate, it is determined that it is likely to go out of service area.

  When the base station 100 receives the warning notification transmitted from the mobile station 200A, the control unit 107 causes the mobile station 200A within the range that can communicate with the mobile station 200A by conventional communication (F2 communication). A search is performed based on the position information sent from the mobile station (step S103). Meanwhile, the mobile station 200A waits for a response from the base station 100 (F2 frequency notification of a communicable mobile station) within the F1 communication area (step S104).

  In the present embodiment, it is assumed that the mobile station 200B is found as a result of searching for a mobile station capable of F2 communication with the mobile station 200A (step S105). As a result of the search, when there are a plurality of mobile stations capable of F2 communication with the mobile station 200A, the mobile station closest to the mobile station 200A is set as a communication target.

  Next, the base station 100 transmits an approval request for performing F2 communication with the mobile station 200A to the discovered mobile station 200B (step S106).

  When the mobile station 200B receives the approval request transmitted from the base station 100, the mobile station 200B determines whether or not F2 communication with the mobile station 200A is possible. If the F2 communication is possible, the mobile station 200B An approval notification (including frequency information used in F2 communication) indicating that F2 communication can be performed is transmitted (step S107). The determination as to whether or not the F2 communication with the mobile station 200A is possible may be made artificially, and the frequency used by the person who manages the wireless communication system 1 for the F2 communication is set in advance for all mobiles. It may be automatically performed by setting in the station 200.

  Upon receiving the approval notification transmitted from the mobile station 200B, the base station 100 notifies the mobile station 200A of the F2 frequency of the mobile station 200B (step S108).

When the mobile station 200A receives the notification of the F2 frequency of the mobile station 200B transmitted from the base station 100, the standby state in step S104 is canceled, and the F2 communication becomes possible.
After that, when the mobile station 200A moves and moves out of the F1 communication area, the mobile station 200A recognizes that the mobile station 200A is out of the range by means of the reception level, error rate, and position information acquisition unit (step S109). ).
When it is recognized that it is out of the area, a warning is displayed on the display unit 213 (step S110), and F2 communication with the mobile station 200B is started by the cooperation of the first control unit 216 and the second control unit 203 ( Step S111). When F2 communication is established between the mobile station 200A and the mobile station 200B, the mobile station 200A periodically transmits position information and identification information using the F2 communication.

Next, the mobile station 200B transmits the position information and identification information of the mobile station 200A that are periodically received from the mobile station 200A to the base station 100 using F1 communication (step S112).
When the base station 100 receives the position information and identification information of the mobile station 200A transmitted from the mobile station 200B, the base station 100 transmits the position information and identification information of the mobile station 200A to each mobile station within the F1 communication area. Is expanded (step S113).

  As described above, in the wireless communication system 1 according to the present embodiment, the mobile station (mobile station 200A) outside the control area N of the base station 100 uses the location information of the local station and the identification information unique to the local station as the base station. The mobile station (mobile station 200B) in the control area N of the base station 100 controls the base station 100 by transmitting to the mobile station (mobile station 200B) capable of conventional communication in the control area N of 100 by conventional communication. The position information and identification information transmitted from the mobile station outside the area N area (mobile station 200A) is transmitted to the base station 100 by trunking communication, and the base station 100 moves within the control area N area of the base station 100. The position information transmitted from the station (mobile station 200B) is transmitted to all mobile stations within the control area N of the base station 100.

  As a result, the position information of mobile stations outside the trunking communication area can be expanded to all mobile stations within the trunking communication area via the mobile station and base station acting as a relay. A mobile station that is within the communication area can acquire position information of the mobile station that is outside the trunking communication area.

  As mentioned above, although concretely demonstrated based on embodiment which concerns on this invention, this invention is not limited to the said embodiment, It can change in the range which does not deviate from the summary.

  For example, in the above embodiment, the number of mobile stations 200 constituting the wireless communication system 1 is six, but there is no particular limitation, and any number of mobile stations 200 can be configured.

  In the above embodiment, in FIG. 4, the mobile station 200A is illustrated as a mobile station outside the F1 communication area and the mobile station 200B is illustrated as a mobile station within the F1 communication area. For example, FIG. As described above, a case where 200D as a mobile station outside the F1 communication area and a mobile station 200C as a mobile station within the F1 communication area coexist with the mobile stations 200A and 200B will be described here.

The mobile station 200D outside the F1 communication area is performing F2 communication with the mobile station 200C within the F1 communication area. The mobile station 200C periodically receives location information of other stations deployed from the base station 100. That is, the mobile station 200D periodically acquires position information of other mobile stations via the mobile station 200C.
If the base station 100 has acquired the position information of the mobile station 200A within the F1 communication area, the mobile station 200D can acquire the position information of the mobile station 200A. On the other hand, since the mobile station 200A side can also acquire the position information of the mobile station 200D via the mobile station 200B, the mobile stations (for example, the mobile stations 200A and 200D) outside the F1 communication area are mutually connected. Position information can be shared, and F2 communication can be performed as long as mobile stations outside the F1 communication area can communicate with each other.

  As described above, in the wireless communication system 1 according to the present embodiment, the mobile station (mobile station 200C) within the control area range of the base station 100 uses the location information and the identification information transmitted from the base station 100 to the base station 100. The data is transmitted to the mobile station (mobile station 200D) outside the control area by conventional communication.

  That is, the mobile station acting as a relay acquires the location information of the mobile station outside the trunking communication area area in addition to the mobile station currently relaying via the base station, and currently relays the acquired location information By transmitting to the mobile station, it becomes possible for the mobile stations outside the trunking communication area to mutually grasp the position information.

  In addition, the detailed configuration and detailed operation of each device (base station 100 and mobile station 200) constituting the wireless communication system 1 can be changed as appropriate without departing from the spirit of the present invention.

1 wireless communication system 100 base station 101 reception antenna 102 reception unit 103 baseband processing unit 104 transmission unit 105 transmission antenna 106 determination unit 107 control unit 200 mobile station 201 reception antenna 202 reception unit 203 control unit 204 transmission unit 205 transmission Credit antenna 206 Reception level detection unit 207 Error rate detection unit 208 GPS antenna 209 GPS reception unit 210 Gyro sensor detection unit 211 Vehicle speed detection unit 212 Determination unit 213 Display unit 214 Microphone 215 Speaker 216 First control unit

Claims (5)

Trunking communication performed via the base station by a plurality of mobile stations within the control area of the base station, and mobile stations within the control area of the base station and movement outside the control area of the base station A wireless communication system for performing conventional communication with a station without going through the base station,
The mobile station includes position information acquisition means for acquiring position information of the own station,
The mobile station outside the control area of the base station is a mobile station capable of conventional communication within the control area of the base station, using the location information acquisition means and the location information of the local station and identification information unique to the mobile station. To conventional communication,
The mobile station within the control area of the base station transmits the position information and identification information transmitted from the mobile station outside the control area of the base station to the base station by trunking communication,
The base station transmits position information and identification information transmitted from a mobile station in the control area of the base station to all mobile stations in the control area of the base station by trunking communication. A wireless communication system.   Further, the mobile station within the control area of the base station transmits the position information and identification information transmitted from the base station to a mobile station outside the control area of the base station capable of conventional communication by conventional communication. The wireless communication system according to claim 1.   The wireless communication system according to claim 1, wherein the position information acquisition unit includes a gyro sensor and a vehicle speed sensor. Trunking communication performed via the base station by a plurality of mobile stations within the control area of the base station, and mobile stations within the control area of the base station and movement outside the control area of the base station An information deployment method by a wireless communication system for performing conventional communication with a station without going through the base station,
The mobile station outside the control area of the base station receives the position information of the own station acquired by the position information acquisition means for acquiring the position information of the own station and identification information unique to the own station within the control area of the base station. Transmitting to a mobile station capable of conventional communication by conventional communication;
A mobile station located within the control area of the base station transmits the location information and the identification information transmitted from the mobile station outside the control area of the base station to the base station by trunking communication;
The base station transmits the location information and the identification information transmitted from the mobile station within the control area of the base station to all mobile stations within the control area of the base station by trunking communication. And an information expansion method.   Further, the mobile station within the control area of the base station transmits the position information and identification information transmitted from the base station to the mobile station outside the control area of the base station capable of conventional communication by conventional communication. The information expansion method according to claim 4, further comprising a step.

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