WO2007060731A1 - Mobile communication system, and mobile communication method - Google Patents

Mobile communication system, and mobile communication method Download PDF

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Publication number
WO2007060731A1
WO2007060731A1 PCT/JP2005/021700 JP2005021700W WO2007060731A1 WO 2007060731 A1 WO2007060731 A1 WO 2007060731A1 JP 2005021700 W JP2005021700 W JP 2005021700W WO 2007060731 A1 WO2007060731 A1 WO 2007060731A1
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WO
WIPO (PCT)
Prior art keywords
relay station
base station
mobile communication
terminal device
relay
Prior art date
Application number
PCT/JP2005/021700
Other languages
French (fr)
Japanese (ja)
Inventor
Yasuhiro Matsumura
Original Assignee
Fujitsu Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Limited filed Critical Fujitsu Limited
Priority to PCT/JP2005/021700 priority Critical patent/WO2007060731A1/en
Publication of WO2007060731A1 publication Critical patent/WO2007060731A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/04Terminal devices adapted for relaying to or from another terminal or user
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022Site diversity; Macro-diversity
    • H04B7/026Co-operative diversity, e.g. using fixed or mobile stations as relays
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas

Abstract

A base station (300) includes a transmission line C voice data sending/receiving unit (105a) for sending and controlling the communication data of a mobile telephone (100), when it receives the communication data from an exchange network, always to the mobile communication terminal device (100) directly not through a relay base station (200). The mobile communication terminal device (100) includes a transmission line A voice data sending/receiving unit (105b) existing in the service area of the relay base station (200), for sending and controlling the communication data as that for the relay base station (200), to the relay base station (200), in case the communication data is sent to a predetermined terminal device on the exchange network. The relay base station (200) includes a transmission line B voice data sending unit (203a) for sending and controlling the communication data, when received from the mobile communication terminal device (100), the communication data as that directly sent from the mobile communication terminal device (100), to the base station (300).

Description

 Mobile communication system and mobile communication method

 Technical field

 The present invention relates to a mobile communication terminal device, a predetermined base station that is connected to a predetermined switching network and provides a mobile communication service to the mobile communication terminal device located in the service area, and a base station In particular, the present invention relates to a mobile communication system and a mobile communication method having a relay base station that relays communication data exchanged between the mobile communication terminal device and the mobile communication terminal device. The present invention relates to a communication system and a portable communication method.

 Background art

 [0002] Today, portable communication terminal devices have become explosively popular because of their portability and convenience, and their owners usually have portable communication terminal devices wherever they go. It's getting on. For this reason, in public institutions such as crowded trains, there are some cases where a large number of mobile communication terminal device owners operate mobile communication terminal devices.

 [0003] Here, if a mobile communication terminal device is used in a powerful public institution, the radio wave may cause a malfunction of the heart-based manufacturer, so normally the public institution is prohibited from using the mobile communication terminal device. However, the fact is that the prohibition of its use has been thoroughly enforced.

 [0004] For this reason, there is known a conventional technique that suppresses radio waves of a portable communication terminal device that eliminates malfunction of a cardiac pacemaker or the like. For example, in Patent Document 1, a relay base station is interposed in wireless communication between a mobile communication terminal device and a mobile phone base station, and low power transmission / reception is performed between the mobile communication terminal device and the relay base station. Thus, a mobile phone communication system configured to reduce malfunctions such as cardiac pacemakers is disclosed.

[0005] In addition, Patent Document 2 describes the construction of a private radiotelephone service area formed by a relay base station in a general public radiotelephone service area formed by a mobile phone base station. Telephone service · Wireless communication between mobile communication terminals and relay base stations in the area A mobile phone communication system configured to perform communication using low-power radio waves is disclosed.

 [0006] Also, in Patent Document 3, a relay base station is interposed between the mobile communication terminal device and the mobile phone base station in a place where the use of the mobile communication terminal device is restricted, and this relay base station Discloses a mobile phone communication system configured to limit the transmission and reception of wireless communication in a mobile communication terminal device.

 [0007] Patent Document 1: Japanese Patent Laid-Open No. 2003-244048

 Patent Document 2: Japanese Patent Laid-Open No. 6-6298

 Patent Document 3: Japanese Patent Laid-Open No. 2000-324539

 Disclosure of the invention

 Problems to be solved by the invention

 [0008] However, in the conventional techniques represented by Patent Documents 1 to 3, a relay base station is interposed between the mobile phone base station and the mobile communication terminal device in both the up channel and the down channel. Considering that each relay base station relays many mobile communication terminal devices at the same time, the burden is extremely large. Originally, the cause of malfunction of the cardiac pacemaker is the large output power transmitted from the mobile communication terminal device, not the received power received by the mobile communication terminal device. It is desirable to reduce the processing burden on relay base stations.

 [0009] In addition, when a relay base station is interposed between the mobile phone base station and the mobile communication terminal device, the mobile phone base station transmits downlink data for the mobile communication terminal device to the relay base station. Since it is necessary to process the received data as data transmitted from the mobile communication terminal device, the processing load on the mobile phone base station is large.

[0010] For these reasons, when a relay base station is provided between the mobile phone base station and the mobile communication terminal device to perform power-saving communication, the processing burden of the mobile phone base station and the relay base station It is an important issue how to reduce the risk. Such a problem is not only a problem that occurs only when a mobile communication terminal device is used, but also a problem that occurs when various mobile communication terminal devices that may cause malfunction of a cardiac pacemaker or the like are used. [0011] The present invention has been made to solve the problems (issues) of the above-described conventional technology, and a relay station is provided between the base station and the mobile communication terminal device to perform power-saving communication. In this case, an object of the present invention is to provide a portable communication system that can efficiently reduce the processing load on the base station and the relay station.

 Means for solving the problem

 In order to solve the above-described problems and achieve the object, the present invention provides a mobile communication terminal device and the mobile communication terminal device connected to a predetermined exchange network and located in a service area. A mobile communication system having a predetermined base station that provides a mobile communication service, and a relay station that relays communication data exchanged between the base station and a mobile communication terminal device. When receiving communication data of the mobile communication terminal device from the exchange network, the mobile communication terminal device includes first transmission control means for always controlling transmission of the communication data directly to the mobile communication terminal device without going through the relay station. When the mobile communication terminal device is located in the service area of the relay station and transmits communication data to a predetermined terminal device on the switching network, the mobile communication terminal device transmits the communication data to the relay station. Communication data and Second transmission control means for controlling transmission to the relay station, and when the relay station receives communication data from the portable communication terminal apparatus, the relay station directly transmits the communication data from the portable communication terminal apparatus. And third transmission control means for controlling transmission of the received communication data to the base station.

[0013] Further, the present invention is characterized in that, in the above-mentioned invention, the second transmission control means controls transmission of the communication data to the relay station with a low output that does not affect a medical device. To do.

[0014] Also, in the present invention according to the above-mentioned invention, the second transmission control unit encapsulates communication data to be transmitted to a predetermined terminal device on the switching network to generate communication data for the relay station. Generating means and transmitting means for transmitting the communication data generated by the generating means to the relay station, wherein the third transmission control means is a capsule of the communication data received by the mobile communication terminal device. And a transmission means for transmitting the communication data released by the decapsulation means to the base station. [0015] Further, the present invention is the above invention, wherein the relay station further includes a relay station identification information notifying means for notifying the mobile communication terminal device located in the service area of the relay station identification information. The wireless communication terminal further includes relay station identification information storage means for storing the relay station identification information notified by the relay station identification information notification means, and the second transmission control means includes the relay station identification information. Based on the relay station identification information stored in the storage means, transmission control of the communication data to the relay station is performed.

 [0016] Further, in the present invention according to the above-described invention, when the wireless communication terminal receives relay station identification information from a plurality of relay stations, the relay station identification having the highest reception sensitivity is provided. Relay station identification information control means for storing information in the relay station identification information storage means and for erasing the stored contents of the relay station identification information storage means when continuous reception of the relay station identification information becomes impossible It is further provided with a feature.

 [0017] Also, in the present invention according to the above-described invention, the second transmission control unit may transmit the communication data when the relay station identification information is not stored in the relay station identification information storage unit. It is characterized by controlling transmission to the base station without using communication data for the station.

 [0018] Also, in the present invention according to the above-described invention, the relay station further includes relay station identification information storage means for storing relay station identification information that has received other relay station power, and the third transmission control means. When communication with the base station is interrupted, relay station identification information is stored in the relay station identification information storage means, and communication data is received from the portable communication terminal device, the communication data is Transmission control is performed on the relay station as communication data for the relay station in the relay station identification information.

[0019] Further, the present invention provides a mobile communication terminal device and a predetermined base station that is connected to a predetermined switching network and provides mobile communication service to the mobile communication terminal device located in a service area. And a relay communication station that relays communication data exchanged between the base station and the mobile communication terminal device, wherein the base station is connected to the mobile network from the switching network. When receiving communication data of a communication terminal device, a first transmission control step of always controlling transmission of the communication data directly to the mobile communication terminal device without going through the relay station, and the mobile communication terminal device, Service area of the relay station And transmitting the communication data to the relay station as communication data for the relay station when transmitting the communication data to a predetermined terminal device on the switching network.

And when the relay station receives communication data from the mobile communication terminal device, the communication data is transmitted to the base station as communication data directly transmitted from the mobile communication terminal device. Including a third transmission control step.

[0020] Further, the present invention is characterized in that, in the above-mentioned invention, the second transmission control step controls transmission of the communication data to the relay station at a low output that does not affect a medical device. To do.

 [0021] In addition, according to the present invention, in the above invention, the second transmission control step encapsulates communication data to be transmitted to a predetermined terminal device on the switching network to generate communication data for the relay station. Including a generation step and a transmission step of transmitting the communication data generated by the generation step to the relay station, wherein the third transmission control step includes a capsule of the communication data received by the mobile communication terminal device. And a transmission step of transmitting the communication data released by the decapsulation means to the base station.

 [0022] Further, the present invention provides the relay station identification information notification step for notifying the mobile communication terminal device located in the relay station power service area of the relay station identification information in the above invention; The communication terminal further includes a relay station identification information storage step for storing the relay station identification information notified in the relay station identification information notification step, and the second transmission control step includes the relay station identification information storage step. The communication data is controlled to be transmitted to the relay station based on the relay station identification information stored in the relay station.

[0023] The present invention further includes a relay station identification information storing step of storing the relay station identification information received in the relay station force and other relay station forces in the above invention, wherein the third transmission control step includes When communication with the base station is interrupted, relay station identification information is stored by the relay station identification information storage step, and communication data is received from the portable communication terminal device, the communication data is The relay station identification information is controlled to be transmitted to the relay station as communication data for the relay station. [0024] Further, the present invention provides communication data to or from a predetermined base station that is connected to a predetermined switching network and provides a mobile communication service, or via the relay station with the base station. Mobile communication terminal device that is located in the service area of the relay station and transmits the communication data to a predetermined terminal device on the switching network. It is characterized by comprising a relay station transmission control means for controlling transmission to the relay station as communication data.

 [0025] Further, the present invention provides a connection between a predetermined base station that is connected to a predetermined switching network and provides a mobile communication service to a mobile communication terminal device located in a service area, and the mobile communication terminal device. A relay station that relays communication data transmitted and received at the base station, when the communication data is received from the mobile communication terminal device, the communication data is directly transmitted from the mobile communication terminal device as the base station. The base station is equipped with transmission control means for base stations that control transmission.

 The invention's effect

[0026] According to the present invention, when the base station receives communication data of the mobile communication terminal device from the switching network, the base station always controls transmission of the communication data directly to the mobile communication terminal device without going through the relay station. 1st transmission control means is provided, and the mobile communication terminal device is located in the service area of the relay station and transmits the communication data to the predetermined terminal device on the switching network. A second transmission control unit that controls transmission to the relay station as communication data of the mobile station, and when the relay station receives communication data from the mobile communication terminal device, the communication data is directly transmitted from the mobile communication terminal device. Since the third transmission control means for controlling the transmission to the base station as the communication data is provided, the communication from the mobile communication terminal device to the base station is performed via the relay station, and the base station power Communication to the inside Since direct communication is performed without intervening relay stations, different transmission paths are used for uplink communication and downlink communication, and the relay station can be interposed so as to reduce the communication control load. . In addition, the base station can handle the communication data that received the relay station power as if it received both the power and the power of the mobile communication terminal device, and in response to this, the base station directly transmits the communication data to the mobile communication terminal device. Therefore, since there is no need to change the configuration of the conventional base station, a mobile communication system equipped with the second and third transmission control means is more suitable. The effect is that it can be constructed at low cost.

 [0027] Further, according to the present invention, the second transmission control means controls transmission of communication data to the relay station with a low output of about! / ヽ without affecting the medical device. Even in places where use of the terminal device is restricted, the mobile communication terminal device can be used as usual, and the convenience of the mobile communication system is not impaired.

 [0028] According to the present invention, the second transmission control means encapsulates the communication data to be transmitted to a predetermined terminal device on the switching network, and generates the communication data for the relay station. A transmission means for transmitting the communication data generated by the generation means to the relay station, and a third transmission control means includes: a decapsulation means for releasing the encapsulation of the communication data received from the mobile communication terminal device; Since the transmission means for transmitting the communication data released by the decapsulation means to the base station is provided, the first and third are classified according to the distinction between the encapsulated communication data and the unencapsulated communication data. The transmission data sent and received by the second transmission control means and the second transmission control means are different from each other, thereby preventing communication data interference and the format suitable for each transmission control method. There is an effect that it can be transmitted with the communication data.

 [0029] Further, according to the present invention, the relay station further includes relay station identification information notifying means for notifying the mobile communication terminal device located in the service area of the relay station identification information, and performing radio communication. The terminal further includes relay station identification information storage means for storing the relay station identification information notified by the relay station identification information notification means, and the second transmission control means is a relay stored in the relay station identification information storage means. Since the communication data is controlled to be transmitted to the relay station based on the station identification information, the second relay is based on the clear criterion that the notified relay station identification information is stored by the relay station identification information storage means. The transmission control means can control the transmission of communication data to the relay station, and has the effect of preventing the second transmission control means from unnecessarily controlling the transmission of communication data to the relay station.

[0030] According to the present invention, when a plurality of relay station power relay station identification information is received, the relay station identification information from the relay station with the highest reception sensitivity is stored in the relay station identification information storage means. And relay station identification information control means for erasing the stored contents of the relay station identification information storage means when continuous reception of the relay station identification information becomes impossible. Therefore, the second transmission control means can select the relay station having the highest reception sensitivity of the relay station identification information and efficiently transmit the communication data, so that the most stable communication can be performed. There is an effect.

 [0031] Further, according to the present invention, the second transmission control means converts the communication data to the communication data for the relay station when the relay station identification information is not stored in the relay station identification information storage means. Therefore, if communication with the relay station is disabled, the process of converting to communication data for the relay station is omitted, and communication with the base station can be performed quickly and efficiently. If you can do it, you will have a positive effect.

 [0032] According to the present invention, the relay station further includes relay station identification information storage means for storing relay station identification information received from another relay station, and the third transmission control means includes the base station When communication with the relay station identification information is stored in the relay station identification information storage means and communication data is received from the mobile communication terminal device, the communication data is transferred to the relay station of the relay station identification information. Because it is decided to control the transmission to the relay station, the communication data can be transferred to other relay stations even if the relay station cannot communicate with the base station. The effect is that loss of communication data to the base station can be prevented. In addition, a combination of a plurality of relay stations has the effect of ensuring a wider service area for the relay stations.

 Brief Description of Drawings

FIG. 1 is a diagram showing a schematic configuration of a mobile phone network according to a first embodiment.

 FIG. 2 is a diagram showing a data structure of audio data a.

 FIG. 3 is a functional block diagram showing a configuration of mobile phone 100.

 FIG. 4 is a functional block diagram showing a configuration of relay base station 200.

 FIG. 5 is a diagram showing a flowchart of a signal reception processing procedure of mobile phone 100.

 FIG. 6 is a diagram showing a flowchart of a calling time processing procedure of the mobile phone 100.

 FIG. 7 is a diagram showing a flowchart of a processing procedure when the relay base station 200 receives voice data.

FIG. 8 is a diagram showing a schematic configuration of a mobile phone network according to a second embodiment. FIG. 9 is a functional block diagram showing a configuration of relay base station 20CT.

 FIG. 10 is a diagram showing a flowchart of a processing procedure when relay base station 20 (中 継 relay base station ID is received).

 [FIG. 11] FIG. 11 is a diagram showing a flow chart showing a processing procedure when relay base station 20 (Τ voice data is received).

 Explanation of symbols

[0034] A, B, C transmission lines

 a, b, cl, c2 Audio data

 100 mobile phone

 101, 201, 201 'Signal processor

 102, 202 'selector

 103, 203 'Relay base station ID storage

 104 Conversion unit for audio data a

 105a Transmission line C Audio data transceiver

 105b Transmission path A Audio data transceiver

 202, 204 'a conversion part to audio data b

 203b Transmission path A Audio data transceiver

 204'b Destination Relay Station Change Department

 203a, 205'a Transmission path B Audio data transmitter

 BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of a mobile phone communication system of the present invention will be described in detail with reference to the accompanying drawings. In the following embodiments, the power to explain the case where the present invention is applied to a mobile phone communication system is not limited to this. PHS (Personal Handyphone System), PDA (Personal Digital Assistants) communication It can be applied to Nasham etc.

 Example 1

FIG. 1 is a diagram showing a schematic configuration of a mobile phone network according to a first example of the present invention. In FIG. 1, wireless communication is performed between the mobile phone 100, the relay base station 200, and the base station 300. It shows the situation where the transmission path is established and voice data is sent and received.

 [0037] As shown in the figure, in this mobile phone network, although the relay base station 200 is interposed between the mobile phone 100 and the base station 300 for the up channel, the base station 300 to the mobile phone 100 is used for the down channel. The relay base station 200 is not interposed. The factor causing the malfunction of the cardiac pacemaker is a radio wave with a large output power transmitted from the mobile phone 100. In consideration of the fact that the mobile phone 100 does not receive enough power to cause a malfunction when received by the mobile phone 100, the base station 300 This is because the burden on the relay base station 200 is reduced.

 [0038] The mobile phone 100 is a voice communication terminal that can make a call when located in the coverage area of the base station 300, and is a PDC (Personal Digital Cellular) CDMA (Code Division Multiple Access) based on the TDMA (Time Division Multiple Access) method. ) It is formed to be compatible with the method.

 The relay base station 200 is an apparatus that is interposed between the mobile phone 100 and the base station 300 and relays an ascending channel of the mobile phone 100. The relay base station 200 communicates with the mobile phone 100 using low power radio waves, and communicates with the base station 300 using normal power radio waves. This relay base station 200 relays data on the climb channel, and also performs data format conversion called decapsulation (details will be described later).

[0040] Base station 300 is a device that provides a call service to mobile phone 100 located in the cover area, and is connected to an exchange (not shown). If the base station 300 receives the voice data for the mobile phone 100 in the service area, the base station 300 transmits the voice data to the mobile phone 100 with normal power without using the relay base station 200. Further, when the voice data of the ascending channel for the telephone terminal on the telephone exchange network is received from the mobile phone 100, the voice data is exchanged. Furthermore, when this base station 300 receives the uplink channel voice data from the relay base station 200, the data format of this voice data is the same as the data format of the voice data received directly from the mobile phone 100 by decapsulation. Because it is a format, it is handled as audio data received directly from the mobile phone 100. [0041] As shown in FIG. 1, here, transmission channel A is formed between mobile phone 100 and relay base station 200 as an ascending channel, and transmission channel B is connected between relay base station 200 and base station 300. The uplink channel voice data is transmitted using the transmission lines A and B that are covered. In addition, a transmission path C is formed between the base station 300 and the mobile phone 100 as a downlink channel, and downlink voice data is transmitted using the powerful transmission path C.

 [0042] Here, the transmission path A is a force formed by low-power radio waves. The transmission paths B and C are formed by normal power radio waves. Here, “low power” means an output power of a degree that does not cause malfunction of the electronic device even if the mobile phone 100 is close to an electronic device such as a heart-base maker to some extent.

[0043] When the transmission line A is configured with low-power radio waves in this way, even if the mobile phone 100 is close to an electronic device such as a heart-base maker to some extent, there is a risk that the electronic device will malfunction. It can be reduced and contributes to energy saving.

Next, the audio data transmission procedure using the up channel (transmission channels A and B) and the audio data reception procedure using the downlink channel (transmission channel C) will be described. First, as a preparation stage, the relay base station 200 broadcasts a relay base station ID unique to its own device (step S10), and the mobile phone 100 that has received this relay base station ID receives the relay base station ID. Remember.

 [0045] When a voice is input to the mobile phone 100, the voice is compressed and encoded to be voice data, and the voice data is encapsulated to generate voice data a (step S). 11). Here, the powerful voice data before the capsule is the voice data to be transmitted to the base station 300, and the voice data a after the capsule is encapsulated as data. Voice data reconfigured for the relay base station 200 with new control information added.

[0046] After that, the cellular phone 100 transmits the encapsulated voice data a to the relay base station 200 with low power (step S12), and the relay base station 200 that has received the voice data a receives the voice data. The capsule data of “a” is released to obtain the voice data b (step S13), and the obtained voice data b is transmitted to the base station 300 (step S14). After that, the base station 300 transmits the received voice data b to an exchange (not shown). Capsule's here Release means the process of extracting the central voice data b of the voice data a, and the base station 300 that has received the voice data b does not receive the voice data b from the relay base station 200, but carries it It can be handled in the same way as when directly received from the telephone 100.

[0047] On the other hand, if base station 300 receives voice data cl even from an unillustrated exchange, this voice data cl is transmitted directly to mobile phone 100 without intervention of relay base station 200 (step S15). .

 [0048] As described above, transmission of audio data from the mobile phone 100 is performed using the ascending channel (transmission paths A and B) via the relay base station 200, and reception of the audio data by the mobile phone 100 is This is performed using the downlink channel (transmission path C) without going through the relay base station 200.

 [0049] Note that if the relay base station ID is not stored in the mobile phone 100, it means that it is not in the coverage area of the relay base station 200 that supports low-power communication. The voice data c2 itself is transmitted to the base station 300 (step S12 ').

 Next, the capsule capsule described in FIG. 1 will be described in more detail. FIG. 2 is a diagram showing a data structure of encapsulated! /, Na! /, Audio data b and encapsulated audio data a shown in FIG. The audio data cl and c2 have the same data structure as the audio data b.

 [0051] First, the audio data b before being encapsulated has a data structure in which control information called a header and a flag is added before and after the original audio data. This control information includes data transmission destination information, transmission source information, information indicating the type of transmission or reception (response), information for synchronizing data, and the like.

 In contrast, the encapsulated audio data a has a data structure in which the audio data b including the original control information is regarded as data and new control information having a header and flag power is added thereto. It becomes. In other words, the encapsulation here refers to a data generation method in which audio data that should be transmitted originally including control information is regarded as data and control information is added thereto.

Next, the configuration of mobile phone 100 shown in FIG. 1 will be described. Figure 3 shows in Figure 1 3 is a functional block diagram showing the configuration of the mobile phone 100. FIG. As shown in the figure, the cellular phone 100 includes a signal processing unit 101, a switching unit 102, a relay base station ID storage unit 103, a conversion unit 104 for audio data a, and a transmission path C for audio data transmission / reception. Unit 105a, transmission path A audio data transmission / reception unit 105b, microphone 106a, speaker 106a, and antenna 107.

[0054] The signal processing unit 101 performs various communication controls such as outgoing call control and incoming call control related to wireless communication of the mobile phone 100, performs compression encoding processing of various voices input to the mobile phone 100, and Then, decompression processing is performed on the audio data received by compression encoding. That is, the audio input from the microphone 106a is compressed and encoded into audio data and transmitted to the switching unit 102. Also, the audio data received from the transmission path C audio data transmitting / receiving unit 105a via the antenna 107 is input. In response, the audio data is expanded to audio and output from the speaker 106b.

 [0055] When relay base station ID is stored in relay base station ID storage unit 103, switching unit 102 passes voice data received from signal processing unit 101 to voice data a converter 104. Transmission path A Voice data transmission / reception unit 105b transmits to tangible base station 200 with low power. On the other hand, when the relay base station ID is not stored in the relay base station ID storage unit 103, when the voice data received from the signal processing unit 101 is transmitted from the transmission line C voice data transmission / reception unit 105a with normal power !, The switching process is performed.

The relay base station ID storage unit 103 is a rewritable storage medium, and when the transmission path A audio data transmission / reception unit 105b receives the relay base station ID from the relay base station 200 via the antenna 107, The received relay base station ID and the reception level (reception radio wave intensity) of the relay base station ID are stored. Based on the stored contents held by the relay base station ID, the switching unit 102 refers to the transmission data as a means for transmitting voice data, either the transmission path C voice data transmission / reception section 105a or the transmission path A voice data transmission / reception section 105b. Is selected. The relay base station ID stored in the relay base station ID storage unit 103 identifies the destination relay base station in the control information of the voice data a transmitted to the outside by the transmission path A voice data transmitting / receiving unit 105b. Inserted as identification information. In addition, the reception level of the relay base station ID is a comparison for determining whether to communicate with the relay base station 200 of a deviation when receiving the relay base station ID from a plurality of relay base stations 200. It becomes a criterion. That is, the relay group The relay base station 200 with the highest reception level of the ground station ID performs wireless communication with the mobile phone 100.

 [0057] The audio data a converting unit 104 performs processing for encapsulating the audio data, which is transmitted from the switching unit 102 and compressed and encoded with the input audio, and converts the audio data into audio data a. Audio data that has been encapsulated and converted to audio data a can be carried by low-power radio waves via transmission line A.

 [0058] Transmission path C voice data transmission / reception section 105a receives voice data cl transmitted from base station 300 through transmission path C using normal power radio waves via antenna 107, and directs it to base station 300. Audio data c2 is transmitted via antenna 107 at normal output on transmission line C. That is, the transmission path C audio data transmitting / receiving unit 105a transmits the received audio data cl to the signal processing unit 101, and transmits the audio data c2 received from the switching unit 102 to the base station 300.

 [0059] The transmission path A voice data transmitting / receiving unit 105b receives the relay base station ID carried from the relay base station 200 via the transmission path A by a low-power radio wave via the antenna 107, and receives the relay base station 200. Transmits voice data a on the transmission line A with low power. The transmission path A voice data transmission / reception unit 105b transmits the received relay base station ID and the reception level of this relay base station ID to the relay base station ID storage 103, and receives the voice data received from the voice data a conversion unit. Is transmitted to relay base station 200 with low power.

 Next, the configuration of relay base station 200 shown in FIG. 1 will be described. FIG. 4 is a functional block diagram showing a configuration of relay base station 200 shown in FIG. The relay base station 200 includes a signal processing unit 201, a voice data b conversion unit 202, a transmission path A voice data transmission / reception unit 203b, a transmission path B voice data transmission unit 203a, and a relay base station ID transmission unit 204. And an antenna 205.

[0061] The signal processing unit 201 executes reception control and transmission control processing related to radio communication of the relay base station 200, and the transmission path A audio data transmission / reception unit 203b receives the transmission path A from the antenna 205 via the antenna 205. The audio data a is received from the transmission path A audio data transmitting / receiving unit 203b, and the audio data a is transmitted to the audio data b converting unit 202. The conversion unit 202 for converting to audio data b converts the encapsulated audio data a transmitted from the signal processing unit 201, Releases the encapsulation and converts it to audio data b. Audio data that has been decapsulated and converted to audio data b can be carried by radio waves of normal power via transmission line B.

 [0062] Transmission path B audio data transmission section 203a is configured so that the audio data b received from conversion section 202 to audio data b can be conveyed via transmission path B to base station 300. Transmit via normal power radio waves via 205. The transmission path A audio data transmission / reception unit 203b transmits the audio data a transmitted from the mobile phone 100 and received via the antenna 205 to the signal processing unit 201. Also, the transmission path A audio data transmitting / receiving unit 203b transmits the relay base station ID of the relay base station 200 transmitted from the relay base station ID transmitting unit 204 to the mobile phone 100 via the antenna 205 with low power. To do.

 The relay base station ID transmission unit 204 broadcasts the relay base station ID of the relay base station 200 that identifies the relay base station to the mobile phone 100 via the transmission path A voice data transmission / reception unit 205. To send.

 Next, a signal reception processing procedure using the mobile phone 100 shown in FIG. 1 will be described. FIG. 5 is a flowchart showing a processing procedure when any one of signals is received using the mobile phone 100 shown in FIG.

 [0065] As shown in the figure, when mobile phone 100 is brought into the reception area of any radio signal, it is determined whether or not a signal is received (step S101). That is, it is determined whether or not a signal indicating a call request from the base station 300 or a relay base station ID from the relay base station 200 is received.

[0066] As a result, if it is determined that a signal indicating a call request from the base station 300 or a relay base station ID from the relay base station 200 is received (No at step S101), the relay base station ID storage is performed. The relay base station ID and the reception level of the relay base station ID stored in the unit 103 are deleted (cleared) (step 103), and the process returns to step S101. In the process of step S103, the relay base station ID is cleared regardless of whether or not the relay base station ID is stored in the relay base station ID storage unit 103. As a result, it is possible to prevent a malfunction that attempts to communicate with the relay base station 200 even though it is not within the communication range with the relay base station 200. [0067] On the other hand, if a signal indicating a call request from base station 300 or a relay base station ID from relay base station 200 is received (Yes at step S101), the received signal is It is determined whether or not a call request is received from the base station (step S102).

 [0068] As a result, when the received signal is a call request with a base station power (Yes at step S102), normal incoming call processing between the mobile phone 100 and the base station 300 is performed (step S104). .

 [0069] On the other hand, if the received signal is not a call request with a base station power (No at step S102), it is determined whether the received signal is a relay base station ID power (step S105). When the received signal is the relay base station ID (Yes at Step S105), the relay base station ID and the reception level are temporarily stored in a predetermined storage area (Step S106). On the other hand, if the received signal is not a relay base station ID (No at step S105), the process returns to step S101.

 Then, it is determined whether or not the relay base station ID storage unit 103 has already stored the relay base station ID (step S107). As a result, if the relay base station ID is already stored (Yes at step S107), whether or not the relay base station ID received this time is the same as the relay base station ID already stored. Is determined (step S108). As a result, if the relay base station ID already stored is not the same (Yes in step S108), the process at the time of receiving this signal ends. On the other hand, if the relay base station ID already stored is not the same (No at step S108), the reception level of the relay base station ID received this time and the relay base station ID already stored are The reception level is compared (step S110), and it is determined whether or not the reception level of the relay base station ID received this time is higher. As a result of this determination processing, the relay base station 200 with the strongest received radio wave can be selected and communicated, and thus the mobile communication terminal device 100 can more stably communicate with the relay base station 200. The

[0071] As a result, if the reception level of the relay base station ID received this time is higher (Yes at step S111), the relay base station ID and the reception level stored in the relay base station ID storage unit 103 are The relay base station ID received this time and this reception level are updated (S112). On the other hand, when the reception level of the relay base station ID received this time is not higher (No at step S111), the process at the time of receiving this signal ends. [0072] If the relay base station ID is not already stored for the above processing (step SI

07), the relay base station ID received this time and the reception level of the relay base station ID are stored in the relay base station ID storage unit 103 (step S109).

Next, a processing procedure at the time of outgoing call using mobile phone 100 shown in FIG. 1 will be described.

 FIG. 6 is a flowchart showing a processing procedure at the time of speech using the mobile phone 100 shown in FIG.

 As shown in the figure, when a call operation is performed on the mobile phone 100, the mobile phone 100 determines whether or not there is a request for a call (step S151). As a result, when there is no utterance request (No at Step S151), Step S151 is repeated. On the other hand, if there is an utterance request (Yes at step S151), it is checked whether or not the relay base station ID storage unit 103 stores the relay base station ID (step S152). Subsequently, it is determined whether or not the relay base station ID storage unit 103 stores the relay base station ID (step S153). As a result, if there is a memory (Yes at Step S153), the input voice is compressed and encoded, and the voice data a conversion unit 104 is controlled to be voice data a (Step S154). Subsequently, the transmission path A audio data transmission / reception unit 105b is controlled to transmit the audio data a to the relay base station 200 with low power (step S155).

 On the other hand, when there is no memory (No at Step S153), the input voice is compressed and encoded to be voice data c2 (Step S156). Subsequently, the transmission path C audio data transmission / reception unit 105a is controlled to transmit the audio data c2 to the base station 300 with normal power (step S157).

 Next, a processing procedure at the time of voice data reception using relay base station 200 shown in FIG. 1 will be described. FIG. 7 is a flowchart showing a processing procedure when voice data is received using relay base station 200 shown in FIG.

 As shown in the figure, when relay base station 200 enters the reception area of voice data a, relay base station 200 determines whether or not voice data b has been received (step S201). As a result, when there is no reception (No at Step S201), Step S201 is repeated.

On the other hand, when there is no reception (Yes in step S201), the audio data b conversion unit 202 is controlled to perform a process of converting the audio data a into the audio data b (step S20). 2). Subsequently, the signal processing unit 201 transmits the audio data b to the base station 300 with normal power (step S203).

 Example 2

 FIG. 8 is a diagram showing a schematic configuration of a mobile phone network according to the second exemplary embodiment of the present invention. Fig. 8 shows a situation in which a transmission path by wireless communication is established between the mobile phone 100 and the two relay base stations 20 (Τ and the base station 300, and voice data is transmitted / received! / RU

 [0080] As shown in the figure, in this mobile phone network, two relay base stations 20 (having a trap between the mobile phone 100 and the base station 300 for the ascending channel, but the base channel for the down channel. The mobile station 100 directly communicates with the mobile phone 100 from the station 300 so that no relay base station 20 (has been interposed. Note that the mobile phone 100 and the base station 300 of the second embodiment have the same configuration as that of the first embodiment. In addition, the second embodiment shown below is different from the relay base station 20 (the configuration of Τ is different from the relay base station 200, and the relay base station 20 (the processing at the time of receiving the 中 継 relay base station ID is the first implementation). It is added from the example, and has the same configuration as that of the first embodiment, except that the process at the time of receiving the voice data of the relay base station 20 (Τ is different from the process at the time of receiving the voice data of the relay base station 200.

 [0081] As shown in the figure, in this mobile phone network, two relay base stations 20 (having a trap between the mobile phone 100 and the base station 300 for the ascending channel, but the base channel for the down channel. It is assumed that the base station 200 communicates directly with the mobile phone 100 and does not intervene the relay base station 200. Two relay base stations 200, or between the mobile phone 100 and the base station 300, and the ascending channel from the mobile phone 100 It communicates with low-power radio waves from one relay base station 200 to the mobile phone 100, and the other relay base station 20 (low-power radio waves between And the other relay base station 20 (Τ communicates with the base station 300 using normal power radio waves. These relay base stations 20 (Τ are used to relay data on the climb channel). The power that is to perform the direct communication with the base station 300 What is, is to perform the encapsulation released.

[0082] Next, the audio data transmission procedure using the up channel (transmission paths 路 and Β) and the audio data reception procedure using the down channel (transmission channel C) will be described. First, as a preparation stage, the other relay base station 200 mm and the other relay base station 20 ( A unique relay base station ID is transmitted by broadcast (step S50), and the relay base station ID is stored for up to 200 relay stations that have received this relay base station ID. At the same time, the relay base station ID is broadcasted to one of the relay base stations 200 (step S51), and the mobile phone 100 that has received this relay base station ID stores the relay base station ID. Keep it.

 [0083] Then, when a voice is input to the mobile phone 100, the voice is compression-encoded and converted into voice data, and the voice data is encapsulated to generate voice data a (step S52). ). Here, the powerful voice data before the capsule is the voice data to be transmitted to the base station 300, and the voice data a after the capsule is encapsulated as data. This is voice data reconstructed for one relay base station 20 (added with new control information.

 [0084] After that, the cellular phone 100 transmits the encapsulated audio data a with low power to one of the relay base stations 20 (step S53). The voice data ^ that is the same as the voice data a is transmitted to the other relay base station 20 (with low power (step S54). The other relay base station 20 ( Then, the voice data is decapsulated and voice data b is obtained (step S55), and the obtained voice data b is transmitted to the base station 300 (step S56). The voice data b is transmitted to a not-shown exchange.The release of the capsule 匕 here means the process of extracting the original voice data b of the voice data a, and the voice data b is received. Base station 300 transmits voice data b to relay base station 20 ( If it received directly from the mobile phone 100 instead of the received and can be handled up in the same manner.

 [0085] On the other hand, if the base station 300 receives the voice data cl even from an unillustrated interaction, the two relay base stations 20 (transmit this voice data cl directly to the mobile phone 100 without intervening ( Step S57).

As described above, the transmission of the voice data from the mobile phone 100 is performed using the two relay base stations 20 (the climbing channels (transmission paths Α and Β) via Τ). Audio data is received by two relay base stations 20 (down channel (transmission path C) Will be used.

 [0087] Note that if the relay base station ID is not stored in the mobile phone 100, it means that the relay base station 20CT that supports low-power communication is not covered, so that the power base is not used. No voice data c2 itself is transmitted to the base station 300 (step S53).

 Next, the configuration of relay base station 20 (Τ shown in FIG. 8 will be described. FIG. 9 is a functional block diagram showing the configuration of relay base station 20 (Τ shown in FIG. 8. As shown in Fig. 2, the relay base station 200, signal processing unit 20Γ, switching unit 202 ', relay base station ID storage unit 203', conversion unit 204'a for voice data b, destination relay base A station ID changing unit 204′b, a transmission path B voice data transmission unit 205′a, a transmission path A and a transmission path voice data transmission / reception unit 205, a relay base station ID transmission unit 206, and an antenna 207. .

 [0089] The signal processing unit 20Γ executes processing of reception control and transmission control related to the relay base station 20 (Τ wireless communication, and transmits the voice data a transmitted from the transmission path Α and the transmission path voice data reception unit 205. Alternatively, the voice data ^ is received and transmitted to the switching unit 202 '. When the switching base station ID storage unit 203 and the relay base station ID are not stored, the switching unit 202' receives from the signal processing unit 201 '. The received voice data a is converted into voice data b through the conversion unit 204'a. Transmission path B The voice data transmission unit 205 sends the voice data ^ to the base station 30 (Τ to the relay base station ID storage unit 203Ί. When this relay base station ID is stored, the voice data received from the signal processing unit 20Γ is transferred to the transmission path A and the transmission path A ′ voice data transmission / reception section 205 ′ via the destination relay base station ID changing section 204′b. A process of switching from b to another relay base station 200 is performed.

Relay base station ID storage unit 203 is a rewritable storage medium, and transmission path A and transmission path A ′ voice data transmission / reception section 205 receive from other relay base station 20 () via antenna 207 ′. The relay base station ID is stored together with the reception level of the relay base station ID of the received relay base station ID, and based on the stored relay base station ID and the reception level, the switching unit 202 or the voice data is stored. Either transmission path B voice data transmission unit 205 or transmission path A and transmission path voice data transmission / reception unit 205 is selected as the transmission means, and the reception level of the relay base station ID is set to a plurality of relay base stations 20 (Τ To relay base station ID This is a comparison criterion for determining whether or not to communicate with the relay base station 200 ′ having a difference between V and V. That is, the other relay base station 20 (Τ having the highest reception level of the relay base station ID performs wireless communication with this relay base station 20 (Τ).

 [0091] The conversion unit 204'a to the audio data b releases the encapsulated audio data a or audio data ^ transmitted from the signal processing unit 20Γ, and releases the capsule data to format the audio data b. Process to convert to. Audio data that has been decapsulated and converted to audio data b can be transported on transmission line B.

 The destination relay base station ID changing unit 204′b sends the destination relay base station ID included in the control information of the voice data a that has also been transmitted to the switching unit 202 ′ to the relay base station ID storage unit 203 ′. Change to the stored relay base station ID. That is, the relay base station 20 (the destination to which the voice data a is transferred to the other relay base station 20CT that has established the communication path on the transmission path A ′ is stored in the relay base station ID storage section 203 ′. The other relay base station 20 (which is memorized is designated as す る.

 [0093] Transmission path ΒVoice data transmission unit 205 transmits the audio data b received from the conversion unit 204 to voice data b to the base station 300 via the transmission path B. 'Transmit at normal power via The transmission path A and the transmission path voice data transmission / reception unit 205 are transmitted from the mobile phone 100 and received via the antenna 207 ′, or from the other relay base station 20CT and received by the antenna 207 ′ ^ Is transmitted to the signal processing unit 201 ′.

 [0094] Transmission path A and transmission path The voice data transmission / reception unit 205 ^ transmits the relay base station ID transmitted from the other relay base station 20CT through the transmission path with low power and received via the antenna 207. The other relay base station 20 (transmission path 路 trowel voice data is transmitted to 電力 with low power. Transmission path Α and transmission path The voice data transmitting / receiving unit 205 receives the relay base station ID received at low power and this Transmits the reception level of the relay base station ID to the relay base station ID storage 203 ′, and transmits the voice data received by the destination relay base station ID change unit 204 ′ to the other relay base station 20CT with normal power. To do.

[0095] Relay base station ID transmission unit 206, or relay base station 20 (the relay base station 20 that identifies Τ, the relay base station ID of Τ via transmission path A and transmission path voice data transmission / reception section 205, Transmit to other relay base station 20CT with low power.

 [0096] Next, the processing procedure at the time of relay base station ID reception using relay base station 20CT shown in Fig. 8 will be described. FIG. 10 is a flowchart showing a processing procedure at the time of receiving the relay base station ID using relay base station 20 (Τ) shown in FIG.

 [0097] As shown in the figure, when another relay base station 20 (within a receiving range of a certain relay base station ID is within the reception range of the relay base station ID 200), it is determined whether or not the relay base station ID has received the relay base station ID ( Step S501) As a result, if the relay base station ID is not received successfully (No at Step S501), the relay base station ID stored in the relay base station ID storage unit 103 ′ is erased (cleared). As a result, it is possible to prevent other relay base station 20 (not within the communication range with Τ! .

 On the other hand, when the relay base station ID is received (Yes at step S501), the received relay base station ID and reception level are temporarily stored in a predetermined temporary storage area (step S502). Thereafter, it is determined whether the relay base station ID is already stored in the relay base station ID storage unit 203′2. As a result, if it is already stored (Yes at step S504), it is determined whether or not the relay base station ID received this time is the same as the relay base station ID already stored. When the relay base station ID received this time is not the same as the relay base station ID that has already been stored (No at step S505), the process at the time of receiving this relay base station ID ends. On the other hand, if the relay base station ID received this time is not the same as the relay base station ID already stored (Yes at step S505), the reception level of the relay base station ID received this time and the memory already stored are stored. Compared with the received reception level of the relay base station ID (step S507), and if the reception level of the relay base station ID received this time is higher (Yes at step S508), the relay base station ID reception storage unit The relay base station ID of 203 'and the reception level are updated (step S509). When the reception level of the relay base station ID received this time is not higher (No at step S508), when this relay base station ID is received. The process ends. Depending on the determination processing result in step S507, the other relay base station 20 with the strongest reception radio wave (can be selected and communicated, so that the mobile communication terminal device 100 can communicate with the relay base station 200 more stably. Communication is possible.

On the other hand, when the relay base station ID storage unit 203 does not store the relay base station ID ( In step S504 ′, the relay base station ID received this time and the reception level of this relay base station ID are stored in the relay base station ID storage unit 203 ′ (step S506). When this process ends, the relay base station ID reception process ends.

 [0100] Next, the processing procedure at the time of receiving voice data using the relay base station 20CT shown in Fig. 8 will be described. FIG. 11 is a flowchart showing a processing procedure at the time of receiving voice data using relay base station 20 (Τ) shown in FIG.

 [0101] As shown in the figure, when relay base station 200 enters the reception range of voice data a, it is determined whether relay base station 200 has received voice data a or voice data (step S551). As a result, when the reception of the voice data a or the voice data ^ is weak (No at Step S551), Step S551 is repeated.

 [0102] On the other hand, when voice data a or voice data is received (Yes at step S551), the relay base station ID storage unit 203 checks whether or not the relay base station ID is stored. (Step S552). Subsequently, the signal processing unit 20Γ determines whether or not the relay base station ID storage unit 203 ′ has the storage of the relay base station ID (step S553). As a result, when the relay base station ID is stored (Yes at step S553), the destination relay base station ID changing unit 204'b is controlled to control the destination relay base station included in the received audio data a control information. Change the ID and rub audio data (step S554). Subsequently, the transmission path A and the transmission path A ′ voice data transmitting / receiving unit 205′b are controlled to transmit the voice data to the other relay base station 20CT with low power (step S555). When this process ends, the process for receiving this audio data ends.

 [0103] On the other hand, when the relay base station ID is not stored (No at step S553), the audio data b or audio data ^ is converted to the audio data b by controlling the conversion unit 204 to the audio data b. (Step S556). Subsequently, the transmission path B audio data transmitting unit 205 is controlled to transmit the audio data b to the base station 300 with normal power (step S557). When this process ends, the process for receiving this audio data ends.

[0104] In the second embodiment, the two relay base stations 20 (repulsive force intervening in the communication between the mobile phone 100 and the base station 300 may include two or more relay base stations 20CT, The configuration of relay base station 20 (Τ and the control operation of relay base station 20 (Τ are the same. Industrial applicability

 As described above, the mobile communication system of the present invention is a mobile communication system that needs to suppress the influence on the surroundings of radio waves emitted by the mobile communication terminal device in a place where the use of the mobile communication terminal device is restricted. Useful for.

Claims

The scope of the claims
 [1] A mobile communication terminal device, a predetermined base station that is connected to a predetermined switching network and provides a mobile communication service to the mobile communication terminal device located in the service area, and the base station and the mobile station A mobile communication system having a relay station that relays communication data exchanged with a communication terminal device,
 The base station, when receiving communication data of the mobile communication terminal apparatus from the switching network, always transmits the communication data directly to the mobile communication terminal apparatus without passing through the relay station. With means,
 When the mobile communication terminal device is located in the service area of the relay station and transmits communication data to a predetermined terminal device on the switching network, the mobile communication terminal device communicates the communication data to the relay station. A second transmission control means for controlling transmission to the relay station as data;
 When the relay station receives communication data from the mobile communication terminal device, the relay station includes third transmission control means for controlling transmission of the communication data to the base station as communication data directly transmitted from the mobile communication terminal device. Prepared
 A portable communication system.
[2] The second transmission control means according to claim 1, wherein the second transmission control means controls the transmission of the communication data to the relay station at a low output that does not affect medical devices! Mobile communication system.
 [3] The second transmission control means encapsulates communication data to be transmitted to a predetermined terminal device on the switching network and generates communication data for the relay station; and the generation means Transmitting means for transmitting the communication data generated by the relay station to the relay station, the third transmission control means is a capsule release canceling means for canceling the power of the communication data received from the mobile communication terminal device, and Transmission means for transmitting the communication data released by the capsule release means to the base station.
 The mobile communication system according to claim 1, wherein:
[4] The relay station further includes relay station identification information notifying means for notifying the mobile communication terminal device located in the service area of the relay station identification information, The wireless communication terminal further includes relay station identification information storage means for storing relay station identification information notified by the relay station identification information notification means, and the second transmission control means includes the relay station identification information. Control transmission of the communication data to the relay station based on the relay station identification information stored in the storage means
 The mobile communication system according to claim 1, wherein:
 [5] When the wireless communication terminal receives each of a plurality of relay station power relay station identification information, the radio communication terminal stores the relay station identification information from the relay station having the highest reception sensitivity in the relay station identification information storage unit. And further comprising relay station identification information control means for erasing the stored contents of the relay station identification information storage means when continuous reception of the relay station identification information becomes impossible. The mobile communication system according to 1.
 [6] When the relay station identification information is not stored in the relay station identification information storage unit, the second transmission control unit does not convert the communication data into communication data for the relay station. 6. The mobile communication system according to claim 5, wherein transmission control is performed to the base station.
 [7] The relay station further includes relay station identification information storage means for storing relay station identification information received from another relay station, and the third transmission control means is incapable of communicating with the base station. When the relay station identification information is stored in the relay station identification information storage means and communication data is received from the portable communication terminal device, the communication data is transmitted to the relay station of the relay station identification information. 5. The mobile communication system according to claim 4, wherein transmission data is controlled to be transmitted to the relay station.
 [8] Mobile communication that transmits / receives communication data to / from a predetermined base station that is connected to a predetermined switching network and provides a mobile communication service, or transmits / receives communication data to / from the base station via a relay station A terminal device,
 When communication data is transmitted to a predetermined terminal device on the switching network located in the service area of the relay station, the communication data is transmitted to the relay station as communication data for the relay station. With transmission control means for relay stations
 A portable communication terminal device.
[9] Connected to the specified switching network and service 'Mobile communication terminal device located in the area A relay station that relays communication data exchanged between a predetermined base station that provides mobile communication service to the device and the mobile communication terminal device,
 When communication data is received from the mobile communication terminal apparatus, the mobile communication terminal apparatus includes a base station transmission control means for controlling transmission of the communication data to the base station as directly transmitted communication data.
 A relay station characterized by that.
 [10] A mobile communication terminal device, a predetermined base station that is connected to a predetermined switching network and provides a mobile communication service to the mobile communication terminal device located in a service area; A mobile communication method of a mobile communication system having a relay station that relays communication data exchanged with a communication terminal device,
 When the base station receives communication data of the mobile communication terminal device from the switching network, first transmission control for always directly controlling transmission of the communication data to the mobile communication terminal device without passing through the relay station Process,
 When the mobile communication terminal device is located in the service area of the relay station and transmits communication data to a predetermined terminal device on the switching network, the communication data is transmitted to the relay station. A second transmission control step for controlling transmission to the relay station as data; and when the relay station receives communication data from the mobile communication terminal device, the communication data is directly transmitted from the mobile communication terminal device. A third transmission control step for controlling transmission to the base station as communication data;
 A mobile communication method comprising:
11. The portable communication according to claim 10, wherein the second transmission control step controls transmission of the communication data to the relay station with a low output that does not affect a medical device. Method.
[12] The second transmission control step includes a generation step of generating communication data for the relay station by encapsulating communication data to be transmitted to a predetermined terminal device on the switching network, and the generation A transmission step of transmitting the communication data generated by the step to the relay station, wherein the third transmission control step is a capsule release step for releasing the power of the communication data received from the mobile communication terminal device. And released by the capsule release means. Transmitting the received communication data to the base station.
 The mobile communication method according to claim 10.
 [13] A relay station identification information notification step in which the relay station notifies relay station identification information to a mobile communication terminal device located in the service area; and the wireless communication terminal in the relay station identification information notification step A relay station identification information storing step for storing the relay station identification information notified by the step, wherein the second transmission control step is based on the relay station identification information stored in the relay station identification information storage step. 11. The mobile communication method according to claim 10, wherein transmission control of the communication data is performed to the relay station.
 [14] The relay station further includes a relay station identification information storing step of storing relay station identification information received from another relay station, and the third transmission control step is incapable of communicating with the base station. When the relay station identification information is stored by the relay station identification information storage step and the mobile communication terminal device power communication data is received, the communication data is transmitted to the relay station of the relay station identification information. 14. The portable communication method according to claim 13, wherein transmission control is performed on the relay station as communication data.
PCT/JP2005/021700 2005-11-25 2005-11-25 Mobile communication system, and mobile communication method WO2007060731A1 (en)

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