WO2000051388A1 - Systeme de communication multiple, echangeur et terminal - Google Patents
Systeme de communication multiple, echangeur et terminal Download PDFInfo
- Publication number
- WO2000051388A1 WO2000051388A1 PCT/JP1999/000823 JP9900823W WO0051388A1 WO 2000051388 A1 WO2000051388 A1 WO 2000051388A1 JP 9900823 W JP9900823 W JP 9900823W WO 0051388 A1 WO0051388 A1 WO 0051388A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- communication network
- exchange
- terminal device
- mobile terminal
- mobile
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2662—Arrangements for Wireless System Synchronisation
- H04B7/2671—Arrangements for Wireless Time-Division Multiple Access [TDMA] System Synchronisation
- H04B7/2678—Time synchronisation
- H04B7/2687—Inter base stations synchronisation
Definitions
- the present invention relates to a multi-communication system that can efficiently process an incoming call to a mobile terminal device moving in a communication network, a multi-communication system, a switching station, and a multi-communication system including a plurality of communication networks including a mobile communication network.
- a multi-communication system that can efficiently process an incoming call to a mobile terminal device moving in a communication network
- a multi-communication system a switching station
- a multi-communication system including a plurality of communication networks including a mobile communication network.
- FIG. 9 is a system block diagram of the multi-message system.
- Communication networks constituting the multi-message system include a fixed communication network and a mobile communication network.
- 1 is a general telephone network which is a fixed communication network
- 2 and 3 are cellular communication networks which are mobile communication networks
- 4 is a satellite communication network which is a mobile communication network.
- the service area of each communication network may or may not geographically overlap.
- 10, 20, 30, and 40 are general exchanges, cellular exchanges, and satellite exchanges.
- the gateway exchange serves as a connection gateway between its own communication network and another communication network, a subscriber exchange connected to a subscriber terminal device, and a plurality of subscriber exchanges.
- relay exchanges that connect the relays to each other.
- the general telephone network 1, the cellular communication networks 2, 3 and the satellite communication network 4 are interconnected through this exchange.
- the exchanges shown in FIG. 9 are shown as including the functions of the gateway exchange and the subscriber exchange.
- General exchange 1 ⁇ , Cellular exchange 20, 30, Satellite exchange 40 has the same configuration and is composed of control circuits 11, 21, 31, 41 and memories 12, 22, 32, 42.
- Reference numeral 13 denotes a terminal device belonging to the general telephone network 1
- reference numeral 23 denotes a dual-mode mobile terminal device belonging to the mobile communication network.
- the dual-mode mobile terminal device can support a plurality of communication modes, and can perform communication even if it moves to a mobile communication network other than the home mobile communication network to which it belongs.
- FIG. 10 is a flowchart showing the operation of the conventional multi-communication system. The operation of the conventional multi-communication system will be described using this flowchart. It is assumed that the home communication network of the dual-mode mobile terminal device 23 is the cellular communication network 2, and that the dual-mode mobile terminal device 23 is currently away from the home and moving to the satellite communication network 4. . At this time, the position registration information of the dual-mode mobile terminal device 23 is stored in the memory 22 of the cellular switching center 20 in the cellular communication network 2 as the home communication network together with the memory of the destination satellite communication network 4. It is also registered in the memory 42 of the satellite exchange 40. Now, it is assumed that a call is made from the terminal device 13 to the dual mode mobile terminal device 23.
- the general exchange 10 receives the connection request signal from the mobile terminal device 23 based on the telephone number information included in the connection request signal. It recognizes that the home is the cellular communication network 2 and sends a connection request signal to the cellular switching center 20 (step S401).
- the cellular exchange 20 checks the memory 22 and performs an incoming call process when the dual-mode mobile terminal device 23 exists in the home cellular communication network 2. If the mobile terminal device 23 in the dual mode is not busy and the incoming call processing is successful, the mobile terminal device 23 shifts to the talk mode (steps S402, S403).
- the incoming call processing will be unsuccessful (step S402, step S402). S404). Meanwhile When the dual-mode mobile terminal device 23 moves away from the home and moves to the satellite communication network 4 as in the case of the second mode, the dual-mode mobile terminal device 23 registered in the memory 22 in the cellular switching center 20 is used. Recognize that the current connection destination is the satellite communication network 4 from the location registration information of the telephone number of the mobile terminal device, and inform the general exchange 10 of the current connection destination. Next, the general exchange 10 sends a connection request signal to the satellite exchange 40 (step S405).
- a connection request signal is sent from the satellite exchange 40 to the dual-mode mobile terminal device 23, and incoming call processing is performed. If the incoming call processing is successful, the mode shifts to the call mode (steps S406, S407), but if unsuccessful, a call refusal is returned to the calling terminal device 13 (steps S406, S406). S408).
- Japanese Patent Laid-Open Publication No. 57-99853 discloses that in an area where a terrestrial line and a satellite line overlap, it is possible to connect via a terrestrial line in order to avoid congestion of the terrestrial line.
- the traffic control method for selecting only a satellite line for a call with a specific arrival code is shown.
- the conventional multi-communication system first checks the switching center of the home communication network, when the mobile terminal device is moving to a communication network other than the home communication network, a complicated network consisting of a plurality of terrestrial networks and a satellite network is used. There was a problem that the connection time was prolonged due to the network configuration.
- the method disclosed in Japanese Patent Application Laid-Open No. 57-99853 is intended to avoid communication congestion in an area where service areas of different line systems overlap. The problem of prolonged connection time discussed in the present invention could not be solved.
- the conventional specific incoming call code selects only the satellite network, and there is a problem that it is not possible to select only the terrestrial network or a connection method according to the user's desire such as the priority of the satellite network or the priority of the terrestrial network.
- the present invention has been made to solve the above-described problems, and can reduce the connection time, reduce the communication cost, and reduce the priority connection time. It is an object of the present invention to provide a multi-communication system, a switching center, and a terminal device that enable free selection of lines. Disclosure of the invention
- a multi communication system includes a plurality of communication networks including a mobile communication network, wherein each of the communication networks is connected by an exchange and belongs to a different communication network.
- Mutual communication is a multi-communication system in which the terminal devices can communicate through exchanges in the communication network where each terminal device is located. When a call is made to the mobile terminal device, the mobile communication device to which the terminal device is connected is connected.
- a terminal that transmits a specific incoming code that specifies a network; and an exchange that connects to a mobile communication network corresponding to the code based on the specific incoming code received from the terminal. Things.
- the mobile communication network includes a satellite communication network and a cellular communication network.
- the switching center in the communication network where the calling terminal is located if the mobile terminal of the calling party does not exist in the mobile communication network corresponding to the connected specific incoming code, It can reconnect to the home communication network to which the body terminal originally belongs.
- the switching center is composed of a plurality of communication networks including a mobile communication network, and each of the communication networks is connected by the switching center and belongs to a different communication network.
- a mutual is an exchange used in a multi-communication system in which the terminal device can communicate through an exchange in a communication network in which each terminal device exists, and a specific device received from the terminal device. Based on the incoming code, the connection to the mobile communication network corresponding to the code is established.
- a message for confirming whether or not reconnection to the home communication network to which the mobile terminal device originally belongs is possible. Can be transmitted to the calling terminal device.
- the terminal device is constituted by a plurality of communication networks including a mobile communication network, wherein each of the communication networks is connected by an exchange and belongs to a different communication network.
- Mutual is a terminal device used in a multi-communications system in which the terminal device can communicate through an exchange in a communication network in which the terminal device exists, and is used when a call is made to a mobile terminal device. The user can input and transmit a specific incoming call code for specifying a mobile communication network to be connected by key operation.
- the mobile terminal device of the calling party when the mobile terminal device of the calling party does not exist in the mobile communication network corresponding to the specific arrival code, the mobile terminal device transmitted from the exchange to the home communication network to which the mobile terminal device originally belongs. It can display or output a message confirming the reconnection of the device.
- FIG. 1 is a more detailed system block diagram of a multi-communication system (digital mobile communication network).
- FIG. 2 is a block diagram of the configuration inside the exchange.
- FIG. 3 is a configuration diagram of an exchange processing program in the exchange.
- FIG. 4 is an explanatory diagram of a roaming method in the multi communication system.
- FIG. 5 shows an operation of the multi communication system according to the first embodiment of the present invention. This is a flowchart.
- FIG. 6 is a block diagram of the configuration of the terminal device of the present invention.
- FIG. 7 is a configuration diagram of an exchange processing program in the exchange according to the present invention.
- FIG. 8 is a flowchart showing an operation of the multi-communication system according to the second embodiment of the present invention.
- FIG. 9 is a system block diagram of the multi-address system.
- FIG. 10 is a flowchart showing the operation of the conventional multi-communication system. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a more detailed system block diagram of a multi-communication system (digital mobile communication network).
- the system configuration will be described using the general telephone network 1 and the cellular communication network 2 among the communication networks shown in FIG.
- the exchanges are indicated in parentheses, and the parentheses indicate the communication networks to which the exchanges belong and the functions assigned to the exchanges.
- the exchange 20a cellular, gateway, subscriber
- the exchange 20a is a cellular exchange, and has a function of a subscriber exchange as well as a gateway exchange as a function.
- exchange 20a is expressed as exchange (gateway) 20a when indicating the function as a gateway exchange
- subscriber is expressed as exchange (subscriber) 20a when indicating the function as an exchange. I do.
- a general exchange 10 in a general telephone network 1 is connected to a nearest cellular exchange (gateway) 20a in a cellular communication network 2.
- the cellular communication network 2 it is connected to the general telephone network 1 through the exchange (gateway) 20a and the exchange (gateway) 20d, and the exchange (subscriber) 20a and the exchange (subscriber)
- a plurality of base stations (BS) are connected to 20 c, and a plurality of exchanges (subscribers) are connected to the exchange (relay) 2 Ob and the exchange (relay) 20 d.
- BS base stations
- a plurality of exchanges (subscribers) are connected to the exchange (relay) 2 Ob and the exchange (relay) 20 d.
- the cellular exchange 20 shown in FIG. 9 corresponds to the cellular exchanges (gateway) 20a and 20d in FIG.
- the memories 22a and 2213 are also called 111 ⁇ 1 (home location register) and correspond to the memory 22 in FIG.
- the HLR is installed in a plurality of locations, for example, Tokyo and Osaka, and stores various information (location registration information, subscriber information, billing information, etc.) of the subscriber's mobile terminal device.
- FIG. 9 has been described assuming that the memory 22 is included in the cellular exchange, in FIG. 1, it is shown separately from the exchange as being commonly used in the communication network. Now, assuming that the telephone number of the dual-mode mobile terminal device 23 is “0 1 0—1 2 3—4 5 6 7”, “0 1 0” is the “network identification number” (that is, the mobile terminal number).
- the device 23 belongs to the cellular communication network 2)" and "1 2 3" the "home identification number” (that is, the mobile terminal device 23 is used in principle in “Osaka”). Since “4 5 6 7” indicates the “subscriber number”, the subscriber information and the like are recorded in the memory 22 b (Osaka), which is the home memory (home memory) of the mobile terminal 23. It becomes.
- the telephone number is decoded by the general exchange 10 into "0 1 0"
- the cellular communication network is deciphered. It is connected to the nearest cellular exchange 20a in 2.
- the home memory location is decoded from the telephone number "123", and the memory 22b in Osaka is sent to the common channel signal network (information transmission within the communication network). Inquiry of subscriber information etc. through a signal network commonly used for reception.
- connection is made to the connection destination.
- FIG. 2 is a block diagram of the internal configuration of the switching center.
- the general switching center 10 the cellular switching centers 20, 30 and the satellite switching center 40, the subscriber switching center 20c, and the gateway switching center are shown.
- the configuration common to 20a and the transit exchanges 20b and 20d is shown.
- a subscriber terminal, a memory, and another exchange are connected to both sides of the exchange. For example, a telephone number transmitted from an originating terminal device (on the left side of the figure) is decoded by a switch control unit that has received control information from a central processing unit, and a switch control signal is generated.
- the call connection is switched by the switch circuit network and connected to the adjacent switching center (right side in the figure).
- the scanning monitoring unit periodically monitors changes in the state of signal lines such as subscriber signal lines and detects telephone numbers.
- the central processing unit sequentially executes the exchange processing program and exchanges control information with the signal processing unit. In the information transfer, data conversion such as number translation for connection destination determination is performed based on subscriber information.
- FIG. 3 is a configuration diagram of an exchange processing program in the exchange, showing the internal processing of the switch control unit in FIG.
- the connection control signal transmitted from the terminal device on the calling side is analyzed by the service analysis unit, and the telephone number is analyzed by the number translation unit to determine the exchange to which the connection is to be made.
- the route in the communication network is determined, and the connection of the switch network is switched.
- the network identification number and the home identification number included in the high-order digits of the telephone number indicate the communication network to which the mobile terminal belongs and the home memo. The position of the key is determined.
- the home identification number is described as having three digits, but the present invention is not limited to this.
- Fig. 4 is an explanatory diagram of a roaming method between notification networks in a multi-communication haze system. That is, a procedure for performing communication by moving to a mobile communication network other than the home mobile communication network to which the dual-mode mobile terminal device 23 originally belongs is described.
- the system configuration will be described using a general telephone network 1, a cellular communication network 2, and a cellular communication network 3 among the communication networks shown in FIG.
- the functions of the exchanges 10, 20 a, 30 a, and 30 c are basically the same as those described in FIG. 1.
- the memory 32 c is also called GLR (gateway location register), and among the memories 32 in FIG.
- GLR gateway location register
- the dual-mode mobile terminal 23 home communication network (referred to as the “home network” in the figure) is now a PDC network (a digital communication system widely used in Japan), and a destination communication network. (Referred to as “existing network” in the figure) is GSGS network (digital communication system that is widely used in Europe and Asia).
- the memory (GLR) 32 c of the visited network is acquired (2), and the home network is accessed from the visited network.
- a call originating from the terminal device 13 connected to the general telephone network 1 (referred to as a “calling network” in the figure) is first routed to the home network (5), and the home memory HLR 22 is checked.
- the connection request signal is transferred to the visited network (7), and the memory GLR32c is referred to within the visited network (8), and the connection is automatically tracked (9).
- a specific incoming call code is added to a telephone number as described later.
- FIG. 5 is a flowchart showing the operation of the multi-communication system of the present invention. Since the system block is the same as the conventional one, Fig. 9 is used.
- the home communication network of the dual-mode mobile terminal device 23 is the cellular communication network 2, and it is assumed that the dual-mode mobile terminal device 23 is currently away from the home and moving to the satellite communication network 4. I do.
- the location registration information of the dual-mode mobile terminal device 23 is stored in the memory 22 of the cellular switching center 20 in the cellular communication network 2 which is the home communication network and the satellite communication network 4 of the destination.
- a specific incoming code (9-050) which is connection control information indicating a communication network of a connection destination, is prefixed. 9 of this specific call code means limited connection (direct connection to the specific exchange designated by the calling terminal), and 0500 indicates a satellite communication network. It is assumed that the specific incoming call code is input by the user using, for example, a key provided on the terminal device.
- the input method of the special incoming code may be a key input method for each outgoing call, or a method of inputting and registering it in advance and calling it at the time of outgoing call.
- the method of inputting and registering in advance will be described with reference to FIG. 6, which is a block diagram of the configuration of the terminal device.
- reference numeral 100 denotes a keyboard.
- the setting of a specific incoming call code from the user is performed via the keyboard 100 and sent to the control unit 101.
- the control unit 101 writes the input specific incoming code into the specific incoming code storage unit 102.
- the control unit 101 When the user calls, First, when the control unit 101 is instructed via the keyboard 100 to call the contents of the specific incoming code storage unit 102, the contents of the specific incoming code storage unit 102 are displayed on the display unit 103. You. The user selects a specific communication network and home network from among them. Next, when the outgoing telephone number is input from the keyboard 100, the control unit 101 inputs the telephone number to the telephone number storage unit 104, and the specific code and the telephone number are combined by the combining unit 100. 5 and transmitted via the transmission unit 106.
- FIG. 6 shows a mobile terminal as an example, the transmitting unit 106 is omitted in the case of a fixed terminal of a general communication network.
- the general exchange 10 determines whether there is a specific incoming code (step S101), and there is the specific incoming code. In this case, the connection request signal is sent directly to the satellite exchange 40, not to the home cellular exchange 20 (step S102), and the satellite exchange 40 connects to the dual-mode mobile terminal 23. A continuation request signal is sent and an incoming call process is performed. If the dual mode mobile terminal device 23 is not in a call and the incoming call processing is successful, the mobile terminal device 23 shifts to a call mode (steps S103, S104).
- FIG. 7 is a configuration diagram of an exchange processing program in the exchange according to the present invention, showing the internal processing of the switch control unit in FIG.
- step 7 the connection control signal from the user is analyzed by the service analysis unit, and if a specific incoming code is added, the call is translated by the specific incoming code translation unit, and the call processing is transferred to another communication network. Is done. If no specific incoming code is added, as in the case of Fig. 3, the telephone number is analyzed by the number translator to determine the exchange to which the connection is to be made, and the route translator determines the route within its own communication network. Is determined, and the connection of the switch network is switched. In addition, the subscriber monitor analyzer analyzes subscriber information to check the contract plan, service type, and the like, which are attributes of the transmitting terminal.
- the service processing unit handles outgoing / incoming calls (only specific terminals can send and receive calls) and transfer services.
- the billing processor calculates the call charges according to the call time zone (cheap at night), call distance, call time, contract plan, etc.
- step 101 If it is determined in step 101 that there is no specific incoming code, the same processes as those in step 106 and subsequent steps are executed.
- the dual-mode mobile terminal device 23 is clearly present in the cellular communication network 2, or if the mobile terminal device 23 is moved to a communication network other than the cellular communication network 2 due to communication cost, etc. If you do not want to connect if you have, you can use "only cellular communication network 2" as the specific incoming code, which has the same effect of shortening the connection time.
- the specific incoming code is “only the satellite communication network” or “only the cellular communication network” has been described.
- 9 meaning limited connection
- another number indicating a priority connection for example, 8 (meaning priority connection) may be used as the specific incoming code.
- the process of automatically connecting to the home communication network (steps S203, S200) 6) is executed.
- the principle is the same as that described in FIG. This embodiment also has the same effect of shortening the connection time.
- the terminal device on the receiving side is not connected to the cellular communication network, the communication cost of the transmitting side before connecting to the expensive satellite communication network is increased. Whether or not to connect to the terminal device may be confirmed, and a connection according to the user's desire can be made.
- a confirmation method there are a method of displaying the confirmation contents on the display (display unit) of the terminal device, a method of outputting the confirmation contents from a speaker in the form of voice, and the like.
- connection using a specific incoming code has been described.
- the caller will be able to use the satellite.
- the priority is given to the satellite, and when a call is made with the ground system telephone number, the priority may be given to the terrestrial system. This has the same effect of shortening the connection time.
- a specific incoming call code is added to a telephone number when a call is made, so that connection time can be reduced, communication cost can be reduced, and a line to be preferentially connected can be freely selected. It is possible to provide a multi-communication system, a switching center, and a terminal device capable of performing the above operations.
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Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99905291A EP1075162A4 (en) | 1999-02-24 | 1999-02-24 | MULTIPLE COMMUNICATION SYSTEM, EXCHANGER AND TERMINAL |
PCT/JP1999/000823 WO2000051388A1 (fr) | 1999-02-24 | 1999-02-24 | Systeme de communication multiple, echangeur et terminal |
US09/392,453 US6188902B1 (en) | 1999-02-24 | 1999-09-09 | Multiple communication system, exchange, and terminal device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP1999/000823 WO2000051388A1 (fr) | 1999-02-24 | 1999-02-24 | Systeme de communication multiple, echangeur et terminal |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/392,453 Continuation US6188902B1 (en) | 1999-02-24 | 1999-09-09 | Multiple communication system, exchange, and terminal device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000051388A1 true WO2000051388A1 (fr) | 2000-08-31 |
Family
ID=14235003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP1999/000823 WO2000051388A1 (fr) | 1999-02-24 | 1999-02-24 | Systeme de communication multiple, echangeur et terminal |
Country Status (3)
Country | Link |
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US (1) | US6188902B1 (ja) |
EP (1) | EP1075162A4 (ja) |
WO (1) | WO2000051388A1 (ja) |
Families Citing this family (7)
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JP2002232573A (ja) * | 2001-01-31 | 2002-08-16 | Nec Corp | 移動通信端末、移動通信システム及びサービス提供装置 |
US7346348B1 (en) * | 2003-12-22 | 2008-03-18 | At&T Mobility Ii, Llc | Selective retry of attach and location update procedures |
FI20040240A0 (fi) * | 2004-02-13 | 2004-02-13 | Nokia Corp | Laskutusinformaation tuottaminen viestintäjärjestelmässä |
US7508840B2 (en) | 2004-05-28 | 2009-03-24 | Bae Systems Information And Electronic Systems Integration Inc. | Mobile temporary incident area network for local communications interoperability |
JP4185513B2 (ja) * | 2004-08-09 | 2008-11-26 | 松下電器産業株式会社 | 無線移動端末装置 |
US20070032223A1 (en) * | 2005-08-08 | 2007-02-08 | Alberth William P Jr | Methods and devices for SMS dialing assistance |
US8463265B2 (en) * | 2011-03-04 | 2013-06-11 | Intel Mobile Communications GmbH | Mobile communication terminal and method for registering a mobile communication terminal in a communication network |
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JPH06261150A (ja) * | 1993-03-02 | 1994-09-16 | Matsushita Electric Ind Co Ltd | 電話装置 |
JPH07226973A (ja) * | 1994-02-16 | 1995-08-22 | N T T Idou Tsuushinmou Kk | 移動通信方式 |
JPH10174143A (ja) * | 1996-12-06 | 1998-06-26 | Toshiba Corp | 移動通信装置および通信端末装置 |
JPH10262284A (ja) * | 1997-03-19 | 1998-09-29 | Fujitsu Ltd | 移動体端末装置および移動体通信システムにおける異種網間接続方式 |
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EP0137865A1 (de) * | 1983-10-15 | 1985-04-24 | ANT Nachrichtentechnik GmbH | Verfahren zum Aufbau einer Funkverbindung |
US5353331A (en) * | 1992-03-05 | 1994-10-04 | Bell Atlantic Network Services, Inc. | Personal communications service using wireline/wireless integration |
US5550915A (en) * | 1993-07-02 | 1996-08-27 | Lucent Technologies, Inc. | Apparatus for use in completing telephone calls |
EP0808548A1 (en) * | 1994-12-23 | 1997-11-26 | Nokia Telecommunications Oy | A method of routing an international call to a foreign mobile subscriber |
GB9508367D0 (en) * | 1995-04-25 | 1995-06-14 | Aethos Communication Systems | Telecommunication systems |
US5946629A (en) * | 1995-11-28 | 1999-08-31 | Telefonaktiebolaget L M Ericsson | Cellular telephone network having short message service interaction with other networks |
US5878126A (en) * | 1995-12-11 | 1999-03-02 | Bellsouth Corporation | Method for routing a call to a destination based on range identifiers for geographic area assignments |
US5903832A (en) * | 1995-12-21 | 1999-05-11 | Nokia Mobile Phones Llimited | Mobile terminal having enhanced system selection capability |
US5920805A (en) * | 1996-11-13 | 1999-07-06 | At & T Corp | Transmission of network-connected device control information over a separate channel |
WO1999011050A1 (en) * | 1997-08-27 | 1999-03-04 | Telephone Holdings Limited | Network access device and system using the device |
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1999
- 1999-02-24 WO PCT/JP1999/000823 patent/WO2000051388A1/ja not_active Application Discontinuation
- 1999-02-24 EP EP99905291A patent/EP1075162A4/en not_active Withdrawn
- 1999-09-09 US US09/392,453 patent/US6188902B1/en not_active Expired - Fee Related
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JPH06261150A (ja) * | 1993-03-02 | 1994-09-16 | Matsushita Electric Ind Co Ltd | 電話装置 |
JPH07226973A (ja) * | 1994-02-16 | 1995-08-22 | N T T Idou Tsuushinmou Kk | 移動通信方式 |
JPH10174143A (ja) * | 1996-12-06 | 1998-06-26 | Toshiba Corp | 移動通信装置および通信端末装置 |
JPH10262284A (ja) * | 1997-03-19 | 1998-09-29 | Fujitsu Ltd | 移動体端末装置および移動体通信システムにおける異種網間接続方式 |
Non-Patent Citations (1)
Title |
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See also references of EP1075162A4 * |
Also Published As
Publication number | Publication date |
---|---|
US6188902B1 (en) | 2001-02-13 |
EP1075162A4 (en) | 2002-08-21 |
EP1075162A1 (en) | 2001-02-07 |
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