WO2003071826A1 - Systeme de communication radio - Google Patents

Systeme de communication radio Download PDF

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Publication number
WO2003071826A1
WO2003071826A1 PCT/JP2002/001418 JP0201418W WO03071826A1 WO 2003071826 A1 WO2003071826 A1 WO 2003071826A1 JP 0201418 W JP0201418 W JP 0201418W WO 03071826 A1 WO03071826 A1 WO 03071826A1
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WO
WIPO (PCT)
Prior art keywords
wireless communication
wireless
base station
terminal device
service
Prior art date
Application number
PCT/JP2002/001418
Other languages
English (en)
Japanese (ja)
Inventor
Changming Zhou
Original Assignee
Yuugenkaisha Tachikairokenkyuukai
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 Yuugenkaisha Tachikairokenkyuukai filed Critical Yuugenkaisha Tachikairokenkyuukai
Priority to JP2003570593A priority Critical patent/JPWO2003071826A1/ja
Priority to AU2002232241A priority patent/AU2002232241A1/en
Priority to PCT/JP2002/001418 priority patent/WO2003071826A1/fr
Publication of WO2003071826A1 publication Critical patent/WO2003071826A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information

Definitions

  • the present invention relates to a wireless communication system and a wireless communication method for providing a wireless communication service such as a mobile communication service, a wireless LAN, and FWA (Fixed Wireless Access), and a server used therein.
  • the present invention relates to a device and a wireless communication terminal device.
  • Such wireless communication services include mobile phones, mobile communication services such as PHS (Personal Handyphone System), wireless LAN, and FWA.
  • PHS Personal Handyphone System
  • WLAN Wireless Local Area Network
  • FWA is a type of wireless subscriber-based overnight communication service.
  • the same method is sometimes referred to as WL L (Wireless Local Loop), but since the international standardization body ITU-R recommends that this method be called FWA, It is called WA.
  • WL L Wireless Local Loop
  • a radio link is established between a subscriber and a communication carrier in a frequency band such as 22 GHz, 26 GHz, and 38 GHz.
  • the communication forms of the FWA include a PP (Point to Point) method and a PMP (Point to Multiple Point) method.
  • radio communication is performed between a base station and a single user's receiving equipment using relatively sharp radio waves with directivity.
  • the maximum transmission distance is about 4 km, and the maximum communication speed Is about 156 Mbps.
  • wireless communication is performed between one base station and receiving equipment of multiple users, and multiple users within a radius of about 1 km are targeted. The line is shared by the multiple users.
  • Japan Telecom Co., Ltd. started a test service under the name of “0 DN Airlink” in October 1999, In July 2008, So-Nissha began providing services under the name “bit-driVe”.
  • wireless LAN refers to those conforming to the IEEE 80.2 lib, which is part of the Ethernet (trademark) standard. Many. The transmission speed of this wireless LAN is 11 Mbps.
  • a wireless LAN card is attached to each terminal device, and a relay device called a base station is used, and communication is performed between the terminal devices via the base station.
  • a base station a relay device that communicates directly with each other.
  • Mobile communication refers to communication in which at least one of two communicating terminal devices can move.
  • Such mobile communications include cellular mobile phones, car phones, and PHS, and special ones include satellite mobile phones that use human satellites.
  • terminal devices perform wireless communication with the nearest base station. Then, a wired communication line is established from the terminal device beyond the base station.
  • Mobile communications are mainly used for voice calls, but have recently been frequently used for data communications.
  • various wireless communication systems have already been proposed and put into practical use. Therefore, wireless communication services using different wireless communication methods are often available at the same location, but can be used for each location Therefore, the types and numbers of wireless communication services will be different.
  • the present invention has been made in view of the above problems, and specifies a wireless communication service that can be used in each location where a wireless communication terminal device is located while suppressing an increase in the capacity of a storage unit of the wireless communication terminal device. It is an object of the present invention to obtain a radio communication system, a server device, a radio communication terminal device, and a radio communication method that enable the communication.
  • the wireless communication system of the present invention stores service area information indicating a correspondence between a wireless base station and another wireless communication service available in the area of the wireless base station, and stores the service area information in the area of the wireless base station.
  • a server device that notifies another wireless communication terminal device using the wireless base station of another wireless communication service available in the area of the wireless base station, and another wireless communication service notified by the server device.
  • a wireless communication terminal device that executes wireless communication using the wireless communication terminal.
  • the wireless communication system according to the present invention is the wireless communication system according to the above invention.
  • the server When registering the position of the wireless communication terminal, the server notifies other wireless communication services available in the area where the position of the wireless communication terminal is registered.
  • the wireless communication terminal device can immediately perform wireless communication using another wireless communication service in the area.
  • the wireless communication system of the present invention functions as follows in addition to the wireless communication system of each of the above inventions.
  • the wireless base station performs wireless communication with the wireless communication terminal device and detects a reception state of a wireless signal of another wireless communication service.
  • the server device specifies another wireless communication service available in the area of the wireless base station based on the reception state of the wireless signal of another wireless communication service detected by the wireless base station. Update servicer information.
  • the wireless communication system of the present invention functions as follows in addition to the wireless communication system of each of the above inventions.
  • the wireless base station periodically attempts to receive a wireless signal of another wireless communication service.
  • the server device transmits the wireless signal.
  • the service area information corresponding to the radio base station is updated based on the signal.
  • the wireless communication system of the present invention functions as follows in addition to the wireless communication system of each of the above inventions.
  • the server device notifies the wireless communication terminal device of a plurality of other available wireless communication services.
  • the wireless communication terminal device selects one of the notified other wireless communication services based on a predetermined condition, and executes the wireless communication using the selected other wireless communication service. I do.
  • the wireless communication system of the present invention functions as follows in addition to the wireless communication system of each of the above-described inventions.
  • the server device selects one of all available other wireless communication services based on a predetermined condition, and notifies the wireless communication terminal device of the selected other wireless communication service.
  • the wireless communication system of the present invention functions as follows in addition to the wireless communication system of each of the above inventions.
  • the server device stores a software wireless program corresponding to another wireless communication service registered in advance, A software wireless program corresponding to another wireless communication service available in the area where the wireless communication terminal exists is transmitted to the wireless communication terminal.
  • the wireless communication terminal device can change the communication method using software wireless technology, and receives a software wireless program from a server device and executes the software wireless program to execute another wireless communication service.
  • the wireless communication system of the present invention functions as follows in addition to the wireless communication system of each of the above inventions.
  • the server device registers the position of the wireless communication terminal device
  • a software wireless program corresponding to another wireless communication service available in the area where the wireless communication terminal device is registered is stored in the wireless communication terminal device. Send.
  • the wireless communication terminal device can immediately perform wireless communication using another wireless communication service in the area.
  • the wireless communication terminal device uses another wireless communication service for transmitting and receiving user data related to wireless communication, and uses the wireless base station of the present system for transmitting and receiving control information related to wireless communication.
  • the bandwidth usable for communication can be widened.
  • the main wireless communication service having the wireless base station and the server device can perform the charging process based on the control information.
  • the wireless communication system of the present invention functions as follows in addition to the wireless communication system of each of the above inventions.
  • the server device and the wireless base station perform one-way wireless communication from the server device to the wireless communication terminal device.
  • the server device of the present invention comprises: a storage unit for storing service area information indicating a correspondence relationship between a wireless base station and another wireless communication service available in the area of the wireless base station; And communication means for notifying another wireless communication service available in the area of the wireless base station to the wireless communication terminal device existing within the wireless base station using the wireless base station.
  • the wireless communication terminal device uses a receiving means for receiving information of another wireless communication service available in an area of a wireless base station in which the wireless communication terminal device is accommodated, and using the received other wireless communication service.
  • Communication means for executing wireless communication and does not have information of other wireless communication services available in the area of the wireless base station in advance.
  • the wireless communication method according to the present invention comprises: a server device that stores a correspondence relationship between a wireless base station and another wireless communication service available in an area of the wireless base station; Using the wireless base station to notify the communication terminal device of another wireless communication service available in the area of the wireless base station; and transmitting the other information notified from the server device by the wireless communication terminal device. Performing wireless communication using the wireless communication service.
  • FIG. 1 is a block diagram showing a configuration of a wireless communication system according to Embodiment 1 of the present invention.
  • FIG. 2 is a block diagram showing a configuration example of a server device in the wireless communication system shown in FIG.
  • FIG. 3 is a diagram showing an example of service area information stored in the server device shown in FIG.
  • FIG. 4 is a block diagram showing a configuration example of a radio base station in the radio communication system shown in FIG.
  • FIG. 5 is a block diagram showing a configuration example of a wireless communication terminal device in the wireless communication system shown in FIG.
  • FIG. 6 is a diagram showing a radio base station in a radio communication system according to Embodiment 2.
  • FIG. 3 is a block diagram illustrating a configuration example of FIG.
  • FIG. 1 is a block diagram showing a configuration of a wireless communication system according to Embodiment 1 of the present invention.
  • a server device 1 is a device that is connected to a plurality of wireless base stations 2 and performs location registration processing of a wireless communication terminal device 3 and charging of a communication fee.
  • the server device 1 also stores service area information 31 (see FIG. 2 and FIG. 3) indicating the correspondence between the wireless base station 2 and other wireless communication services available in the area 11 of the wireless base station 2. (Fig.) And can be used in the area 11 of the wireless base station 2 by using the wireless base station 2 to the wireless communication terminal 3 existing in the area 11 of the wireless base station 2. This device notifies other wireless communication services.
  • the server device 1 may be realized by one computer or a plurality of computers.
  • the wireless base station 2 is a facility that is connected to the server device 1 and performs wireless communication with the wireless communication terminal device 3 in the area 11 under its control.
  • the wireless communication terminal device 3 is a terminal device that executes wireless communication using another wireless communication service notified from the server device 1.
  • the wireless communication terminal device 3 may be in the form of a mobile phone or the like in addition to a PDA (Personal Digital Assistant) having a wireless communication function, a handheld computer, a portable personal computer, and the like.
  • PDA Personal Digital Assistant
  • a cellular wireless communication service is provided by the server device 1 and the wireless base station 2.
  • server device 1 and wireless The wireless communication service provided by the base station 2 is referred to as a main wireless communication service.
  • the provider of the other wireless communication service may be the same as or different from the provider of the main wireless communication service.
  • FIG. 2 is a block diagram showing a configuration example of the server device 1 in the wireless communication system shown in FIG.
  • a storage device 21 is storage means for storing service area information 31, a software defined radio program 32, and wireless communication service information 33.
  • a hard disk device, a semiconductor memory, a database system, and the like are appropriately used as the storage device 21.
  • portable recording media such as flexible discs, various CDs (Compact Discs), various DVDs (Digital Versatile Discs), and M ⁇ (Magneto Optical) discs, and data can be read from the recording media
  • a drive device may be used.
  • the service area information 31 is information indicating the correspondence between the wireless base station 2 and other wireless communication services available in the area of the wireless base station 2.
  • FIG. 3 is a diagram showing an example of service area information 31 stored in the server device 1 shown in FIG.
  • other wireless communication services available in the area 11 of the wireless base station 2 having the base station ID “00001” include “A company wireless LAN” and “B company mobile phone”. "Telephone” and “Company C FWA" are registered.
  • the software defined radio program 32 is a program for the wireless communication terminal device 3 that realizes software defined radio.
  • the software defined radio program 32 is prepared in advance according to a plurality of radio communication services.
  • the wireless communication service information 33 is information such as a wireless communication method, a protocol, and wireless characteristics of a wireless base station employed by another wireless communication service.
  • the communication circuit 22 is communication means for communicating with the wireless base station 2. Communication with the wireless base station 2 may be wire communication or wireless communication.
  • the control unit 23 is a circuit that controls each unit in the server device 1 and performs various types of information processing.
  • the control section 23 can be realized by a computer having a CPU, ROM, RAM, and the like, and a server program executed on the computer.
  • FIG. 4 is a block diagram showing a configuration example of a radio base station 2 in the radio communication system shown in FIG.
  • a wireless communication unit 41 is a device or facility that performs wireless communication with the wireless communication terminal device 3.
  • the communication circuit 42 is a circuit that communicates with the server device 1.
  • FIG. 5 is a block diagram showing a configuration example of a wireless communication terminal device 3 in the wireless communication system shown in FIG.
  • a software radio section 51 is a radio communication circuit capable of performing radio communication in a plurality of radio communication schemes by changing a software radio program 71 by software radio technology.
  • the software defined radio technology refers to a digital signal processing technology using a DSP (Digital Signal Processor) or a CPU (Central Processing Unit) instead of a fixed circuit instead of a fixed circuit.
  • DSP Digital Signal Processor
  • CPU Central Processing Unit
  • for c software radio technology is a technology to implement a program, for example, "software radio" (Jun road Author Araki, Institute of Electronics, information and communication Engineers magazine V o 1 8 3, N o 3, pp 1 8 3 -.. 1 90).
  • the software radio unit 51 includes a receiving unit that receives information of another wireless communication service available in the area 11 of the wireless base station 2 in which the wireless communication terminal device 3 is accommodated, and Executes wireless communication using another wireless communication service received by the receiving means Function as a communication means.
  • the receiving means and the communication means are realized by using two different software wireless programs in the software wireless section 51.
  • a receiving means for receiving a radio signal of a main radio communication service is provided as a separate circuit, and the software radio section 51 is used only for transmitting and receiving radio signals by another radio communication service. You may make it.
  • the antenna section 61 can change the frequency band and control the directivity according to the software defined radio program 71 corresponding to the selected radio communication system.
  • the transmitting / receiving section 62 is a section that performs frequency conversion and A / D conversion on a transmission signal and a reception signal according to a software radio program 71 corresponding to the selected radio communication scheme.
  • the signal processing unit 63 is a unit that performs modulation / demodulation processing and baseband processing according to the software wireless program 71 corresponding to the selected wireless communication method.
  • the program storage section 64 is composed of a semiconductor memory or the like, and stores one or a plurality of software wireless programs 71 as needed.
  • the software wireless program 71 corresponding to the main wireless communication service by the server device 1 and the wireless base station 2 is stored in advance in the program storage unit 64, and the software corresponding to the other wireless communication service is The wear radio program 71 is downloaded from the server device 1 when it is used and stored.
  • the control unit 52 is a circuit that controls each unit in the wireless communication terminal device 3 and performs various types of information processing.
  • the control unit 52 can be realized by a computer having a CPU, a ROM, a RAM, and the like, and a program executed by the computer.
  • the storage device 53 is currently accommodated from the server device 1.
  • This is a device that stores service area information 81 indicating another wireless communication service available in the area 11 of the wireless base station 2 that is being used. Note that a semiconductor memory or the like is used for the storage device 53.
  • the voice codec 54 is a circuit for mutually converting an analog voice signal and voice data at the time of voice communication, voice input or voice output.
  • the speaker 55 is a device that outputs sound corresponding to an analog sound signal.
  • the microphone 56 is a device that outputs an analog voice signal corresponding to the input voice.
  • the input operation unit 57 is a part that is operated by the user and is composed of components such as buttons, keys, and dials that output signals according to the operation.
  • the display unit 58 is a device such as a liquid crystal display for displaying various information. Next, the operation of each device in the above system will be described. That is, a wireless communication method in the above system will be described.
  • the server device 1 registers the position of the wireless communication terminal device 3 indicating that the wireless communication terminal device 3 is in the area 11 of the wireless base station 2. I do.
  • the server device 1 refers to the service area information 31 in the storage device 21 to specify another wireless communication service available in the area 11 where the wireless communication terminal device 3 exists. I do.
  • the control unit 23 reads out the service area information 31 from the storage device 21 according to the server program, and searches for the wireless base station 2.
  • the control unit 23 finds the wireless base station 2 that has jurisdiction over the area 11 in which the wireless communication terminal device 3 is located, the control unit 23 sends another wireless communication service registered corresponding thereto to the area 11 1 Identify other wireless communication services available in.
  • the server apparatus 1 controls the wireless base station 2 to notify the wireless communication terminal apparatus 3 of another wireless communication service available in the area 11 where the wireless communication terminal apparatus 3 exists. I do.
  • the control unit 23 controls the communication circuit 22 to transmit information of the other available wireless communication service.
  • the server device 1 selects a software wireless program 32 corresponding to another wireless communication service available in the area 11 where the wireless communication terminal device 3 exists, and controls the wireless base station 2.
  • the control unit 23 reads the software wireless program 32 from the storage device 21 according to the server program, and controls the communication circuit 22 to transmit.
  • the wireless communication terminal device 3 receives, via a wireless line with the wireless base station 2, information on other wireless communication services available in the area 11 in which the wireless communication terminal device 3 exists.
  • the software radio unit 51 receives the information, and the control unit 52 stores the information in the storage device 53 as service area information 81.
  • the wireless communication terminal device 3 receives the software wireless program 32 corresponding to the other available wireless communication service, and stores it in the program storage unit 64.
  • the software-to-air radio section 51 receives the software-to-air radio program 32 and stores it in the program storage section 64.
  • the wireless communication terminal device 3 performs wireless communication using the notified other wireless communication service. That is, voice communication using the voice codec 54, the speaker 55, and the microphone 56, and data communication executed by the control unit 52 according to various application programs are realized.
  • the software wireless unit 51 executes wireless communication by a method based on the software wireless program 71 from the server device 1.
  • a plurality of server devices for managing the service area information 31 may be provided in a distributed manner, and the server device may notify the wireless communication terminal device 3 of other wireless communication services available in each area 11. Good.
  • the server device 1 stores the service area information 31 and sends the service area information 31 to the radio communication terminal device 3 existing in the area 11 of the radio base station 2.
  • the base station is used to notify other radio communication services available in the area of the radio base station.
  • the wireless communication terminal device 3 executes wireless communication using another wireless communication service notified from the server device 1. This makes it possible to specify a wireless communication service that can be used in each location where the wireless communication terminal device 3 is located, while suppressing an increase in the capacity of the storage unit of the wireless communication terminal device 3.
  • the server device 1 when the location of the wireless communication terminal device 3 is registered, the server device 1 can use another location available in the area 11 where the wireless communication terminal device 3 has been registered. Notify wireless communication service. This allows the wireless communication terminal device 3 to immediately perform wireless communication using another wireless communication service in the area 11.
  • server device 1 stores software wireless program 32 corresponding to another wireless communication service registered in advance, and supports another available wireless communication service.
  • the software transmits the wireless program 32 and the wireless communication terminal 3.
  • the wireless communication terminal device 3 receives the software wireless program 32 (71) from the server device 1 and executes the software wireless program 32 (71) to execute other wireless communication programs. Use the service. This eliminates the need to provide a wireless circuit dedicated to one wireless communication service for the wireless communication service in the wireless communication terminal device 3.
  • the software Since only the software radio program is downloaded from the server device 1, the capacity of the storage means (program storage unit 64) for the software radio program can be reduced.
  • the server device 1 when registering the location of the wireless communication terminal device 3, transmits another wireless communication terminal device 3 that can be used in the area 11 where the location is registered.
  • the wireless program 32 is transmitted to the wireless communication terminal 3. Accordingly, the wireless communication terminal device 3 can immediately perform wireless communication using another wireless communication service in the area 11.
  • the wireless communication terminal device 3 does not have information on other wireless communication services available in the area 11 of the wireless base station 2 in which the wireless communication terminal device 3 is accommodated in advance.
  • the wireless communication system according to the second embodiment of the present invention is configured such that, in addition to the wireless communication system according to the first embodiment, the wireless base station 2 attempts to receive a wireless signal of another wireless communication service, and the wireless base station 2 Based on the reception status of the radio signal of another radio communication service, another radio communication service available in the area 11 of the radio base station 2 is specified, and the service area information 31 is generated. Things.
  • FIG. 6 is a block diagram showing a configuration example of a radio base station 2 in the radio communication system according to Embodiment 2.
  • a wireless signal receiving unit 43 is a wireless device capable of receiving a wireless signal of another wireless communication service.
  • the wireless communication unit 41 and the communication circuit 42 are the same as those according to the first embodiment. It is.
  • the server device 1 Based on the reception status of the wireless signal of another wireless communication service received by the wireless base station 2, the server device 1 provides another wireless communication service available in the area 11 of the wireless base station 2. It has the function of identifying and generating service area information 31. Next, the operation of each device in the above system will be described. That is, a wireless communication method in the above system will be described.
  • each wireless base station 2 attempts to be able to receive a wireless signal of another wireless communication service, and transmits data indicating a reception state of the wireless signal to the server device 1. .
  • the wireless signal receiving unit 43 detects the reception status of the wireless signal of another wireless communication service, and the communication circuit 42, together with the type of the wireless communication service, The data indicating the reception status of the radio signal of the communication service is transmitted to the server device 1.
  • the data indicating the reception state may be data indicating reception enabled or disabled, or may be a characteristic value such as an RSI (Receive Signal Strength Indicator) value.
  • RSI Receiveive Signal Strength Indicator
  • the server device 1 performs another wireless communication from the wireless base station 2 based on data indicating the reception status of the wireless signal of the service and other wireless communication services available in the area 11 of the wireless base station 2. Identify one screw.
  • the server apparatus 1 associates the wireless communication service indicated by the data with the wireless base station 2 and provides service area information 31 1 To be stored.
  • the server device 1 refers to the wireless communication service information 33 and, when it is determined from the characteristic value that is the data from the wireless base station 2 that the reception is possible, the server 1 transmits the wireless communication service indicated by the data. It is stored as service area information 31 in association with the wireless base station 2.
  • the wireless base station 2 periodically attempts to receive a wireless signal of another wireless communication service, and the server apparatus 1 determines whether the wireless signal of the other wireless communication service detected by each wireless base station 2 is received. Based on the information, information on other wireless communication services available in the area 11 of each wireless base station 2 may be updated.
  • the wireless base station 2 performs wireless communication with the wireless communication terminal device 3 and detects a reception state of a wireless signal of another wireless communication service. .
  • the server apparatus 1 Based on the reception status of the wireless signal of another wireless communication service detected by the wireless base station 2, the server apparatus 1 provides another wireless communication service available in the area 11 of the wireless base station 2. To identify. As a result, since other wireless communication services actually available in the area 11 of each wireless base station 2 are registered in the server device 1, the service area information 31 becomes accurate. Further, the service area information 31 corresponding to each wireless base station 2 can be automatically collected, for example, even if the service area information 31 is not stored in the server device 1 in advance.
  • the radio base station 2 periodically Attempt to receive wireless signals for wireless communication services. Then, based on the wireless signal of another wireless communication service detected by the wireless base station 2, the server device 1 updates the service area information 31 corresponding to the wireless base station 2. As a result, even if there is a change in another wireless communication service that is actually available in the area 11 of each wireless base station 2, the service area information stored in the server 1 in response to the change 3 1 changes immediately.
  • the wireless communication system includes, in addition to the wireless communication system according to the first or second embodiment, a plurality of other wireless devices notified from the server device 1 in the wireless communication terminal device 3.
  • One of the wireless communication services is selected from the communication services based on predetermined conditions, and wireless communication is performed using the selected wireless communication service.
  • the wireless communication terminal device 3 selects a wireless communication service to be used for wireless communication based on, for example, priority information set in advance by the user.
  • the wireless communication service to be used preferentially can be set, and the wireless communication service can be automatically selected according to the conditions desired by the user (priority to communication speed, priority to communication fee, etc.). .
  • the wireless communication terminal device 3 may select a wireless communication service with the lowest communication fee. As a result, the total communication fee can be reduced.
  • the wireless communication service may be selected in consideration of the communication direction mainly used by the application executed by the wireless communication terminal device 3. As a result, a more appropriate wireless communication method is selected for the purpose of communication, and the total communication charge can be further reduced. Further, in that case, the wireless communication terminal device 3 may select a wireless communication service in consideration of the amount of data related to communication. As a result, a more appropriate wireless communication service for the purpose of communication is selected, and the total communication charge can be further reduced.
  • the wireless communication service may be selected in consideration of the type of communication executed by the application (data communication, voice call). As a result, a more appropriate wireless communication service for the purpose of communication is selected, and the total communication fee can be reduced.
  • the wireless communication service having the highest communication speed may be selected. As a result, the time required for communication can be shortened.
  • the wireless communication terminal device 3 displays available wireless communication service information (name, fee, communication speed, radio wave condition, etc.) on the display unit 58, and the input operation unit 5
  • the wireless communication may be performed using the wireless communication service selected by the user's operation on step 7.
  • the wireless communication terminal apparatus 3 transmits another wireless communication service of one or more available wireless communication services.
  • One service may be selected to switch the wireless communication service.
  • the wireless communication terminal device 3 may download the charge information and the communication speed information from a server of a provider that provides the wireless communication service.
  • the server device 1 notifies the wireless communication terminal device 3 of a plurality of other available wireless communication services, and the wireless communication terminal device 3 Based on the conditions, one of the notified other wireless communication services is selected, and wireless communication is performed using the selected other wireless communication service. As a result, the user can use an appropriate wireless communication service.
  • the wireless communication system includes, in addition to the wireless communication system according to the first or second embodiment, a wireless communication service that can be used in the server device 1 from all other available wireless communication services.
  • the wireless communication service used by the terminal device 3 is selected based on predetermined conditions, and the selected other wireless communication service is notified to the wireless communication terminal device 3.
  • the server device 1 selects a wireless communication service to be used by the wireless communication terminal device 3 based on, for example, priority information set by the user in advance.
  • the wireless communication service to be used preferentially can be set, and the wireless communication service can be automatically selected according to the conditions desired by the user (priority to communication speed, priority to communication fee, etc.). .
  • the server device 1 may select a wireless communication service with the lowest communication fee. As a result, the total communication fee can be reduced.
  • the server device 1 may select the wireless communication service used by the wireless communication terminal device 3 in consideration of the communication direction mainly used by the application of the wireless communication terminal device 3. . This allows A more appropriate wireless communication service for the communication application is selected, and the total communication fee can be reduced.
  • the server device 1 may select the wireless communication service in consideration of the data amount related to the communication of the wireless communication terminal device 3. As a result, a more appropriate wireless communication service for the purpose of communication is selected, and the total communication charge can be further reduced.
  • the server device 1 selects the wireless communication service used by the wireless communication terminal device 3 in consideration of the type of communication (data communication, voice call) performed by the wireless communication terminal device 3. You may. As a result, a wireless communication service more appropriate for the purpose of communication is selected, and the total amount of communication charges can be reduced.
  • the server device 1 may select the wireless communication service with the highest communication speed as the wireless communication service used by the wireless communication terminal device 3. As a result, the time required for the wireless communication terminal device 3 to perform communication can be reduced.
  • the server apparatus 1 selects one of all other available wireless communication services based on a predetermined condition, and selects the selected other wireless communication service. To the wireless communication terminal device 3. As a result, an appropriate wireless communication service can be notified to the user. Further, since there is no need to select a wireless communication service using the wireless communication terminal device 3, the configuration of the wireless communication terminal device 3 can be simplified. Furthermore, the communication load of a plurality of wireless communication services can be distributed.
  • the communication terminal device 3 uses another wireless communication service to transmit and receive user data related to wireless communication, and uses the wireless base station 2 to transmit and receive control information related to charging control and call control of wireless communication. You may do so. Thereby, the bandwidth usable for communication can be widened. Also, for example, even if another wireless communication service that is difficult to charge for each use is used, the charging process can be performed by the main wireless communication service having the wireless base station 2 and the server device 1. Further, in the wireless communication systems according to the first to fourth embodiments, the one that performs one-way wireless communication from the server device 1 to the wireless communication terminal device 3 is adopted as the server device 1 and the wireless base station 2. You may. As such a one-way wireless communication system, a pager system, a broadcasting system, and the like can be employed. As a result, the main wireless communication service having the server device 1 and the wireless communication terminal device 3 can be realized at low cost.
  • the present invention it is possible to specify a wireless communication service that can be used in each place where the wireless communication terminal device is located, while suppressing an increase in the capacity of the storage unit of the wireless communication terminal device.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Selon l'invention, un serveur stocke la relation entre une station de base radio et un autre service de communication radio disponible dans la zone de la station de base radio et informe un dispositif de borne de communication radio présent dans la zone de la station de base radio du service de communication radio disponible dans la zone de la station de base radio au moyen de la station de base radio. Le dispositif de borne de communication radio effectue une communication radio par mise en oeuvre du service de communication radio indiqué par le serveur.
PCT/JP2002/001418 2002-02-19 2002-02-19 Systeme de communication radio WO2003071826A1 (fr)

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AU2002232241A AU2002232241A1 (en) 2002-02-19 2002-02-19 Radio communication system
PCT/JP2002/001418 WO2003071826A1 (fr) 2002-02-19 2002-02-19 Systeme de communication radio

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JP2008546267A (ja) * 2005-05-27 2008-12-18 ノキア コーポレイション 一種のネットワークから他種のネットワークへとハンドオフするための移動ノード、方法及びコンピュータプログラムプロダクト
JP2009267709A (ja) * 2008-04-24 2009-11-12 Mitsubishi Electric Corp 無線ネットワークシステムおよび無線システム選択方法

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JP2000032544A (ja) * 1998-07-10 2000-01-28 Nec Corp 移動電話システム
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JPH04287430A (ja) * 1991-03-15 1992-10-13 Nippon Telegr & Teleph Corp <Ntt> 無線ゾーン判定方式
JPH09507986A (ja) * 1994-11-07 1997-08-12 モトローラ・インコーポレイテッド 通信オペレーティング・システムおよびその方法
JPH08265835A (ja) * 1995-03-23 1996-10-11 Nippon Telegr & Teleph Corp <Ntt> 移動無線通信方法
JPH09200825A (ja) * 1996-01-23 1997-07-31 Toshiba Corp 無線通信システム
JPH09233521A (ja) * 1996-02-26 1997-09-05 Matsushita Electric Ind Co Ltd 周波数リスト管理方式
JPH11249884A (ja) * 1998-03-05 1999-09-17 Nec Corp 無線放送における再プログラミングデータのダウンロード方法
JP2000032544A (ja) * 1998-07-10 2000-01-28 Nec Corp 移動電話システム
JP2000092541A (ja) * 1998-09-08 2000-03-31 Toshiba Corp 無線通信システム、基地局装置、及び無線携帯機器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008546267A (ja) * 2005-05-27 2008-12-18 ノキア コーポレイション 一種のネットワークから他種のネットワークへとハンドオフするための移動ノード、方法及びコンピュータプログラムプロダクト
JP2009267709A (ja) * 2008-04-24 2009-11-12 Mitsubishi Electric Corp 無線ネットワークシステムおよび無線システム選択方法

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