WO1997044974A2 - Communications operating system and method therefor - Google Patents
Communications operating system and method therefor Download PDFInfo
- Publication number
- WO1997044974A2 WO1997044974A2 PCT/EP1997/002531 EP9702531W WO9744974A2 WO 1997044974 A2 WO1997044974 A2 WO 1997044974A2 EP 9702531 W EP9702531 W EP 9702531W WO 9744974 A2 WO9744974 A2 WO 9744974A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- subscriber unit
- communication system
- information
- subscriber
- geographic location
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
Definitions
- the present invention relates, in general, to communication systems and, more particularly, to a communications operating system and method therefor.
- radio frequency (RF) communication systems have gone from a very limited number of systems, each available for one type of function, to a vast number of potential systems available for providing the same type of basic service.
- cellular communication systems began in Europe with the Nordic Mobile Telephone (NMT) system.
- NMT Nordic Mobile Telephone
- TACS Total Access Communication System
- GSM Groupe Special Mobile
- DCS- 1800 Digital Cellar System
- CT-2 Coronadless Telephone
- DECT Digital European Cordless Telephone
- the mobile owned by a user may have limitations built in during its original programming that prevent it from using features subsequently developed for a particular system. While there are some subscriber units available today that can be returned and reprogrammed (either electronically or by replacing some of the memory devices containing the programming), the user often finds themselves with a subscriber unit that has become obsolete in just a short time.
- a related invention is found in "Bulletin Board Resource for Communication System Access” (US- A-5,301,359) invented by VandenHuevel et al. and assigned to Motorola Inc.
- This invention describes a method of providing information regarding communication system capabilities for multiple, independent RF communication systems. The method comprises the steps of monitoring an RF bulletin board that is independent of the multiple, independent RF communication systems; and receiving information from the RF bulletin board regarding the multiple RF communication systems.
- the system providing the RF bulletin board is called the "bulletin board system” or "common communications system”.
- This application is similar, and in fact uses, a standard ISDN process to transfer a program from one computer to another. The result then is that while certain features in the phone may be activated, it does not address the issue of providing access to multiple communication systems operating using different protocols.
- the bulletin board system provides a subscriber unit with information about systems and services within the coverage area of the bulletin board system. It can be expected that there will be a mismatch between the coverage area of the bulletin board and the coverage area of the communications system with which the subscriber unit will eventually communicate. This mismatch can come about when a bulletin board provider uses a wholly different radio infrastructure than the target system communications system. An example of this would be where the bulletin board system is provided by a satellite system, such as Iridium and the target system is a national cellular system, such as GSM. Although it may be technically possible to provide a close match between the bulletin board system coverage area and the target system coverage area, this may be challenging to engineer and/or consume valuable spectrum resources from the target system. A user will want to know about services local to him, however the bulletin board operator will not want to deploy equipment at many small cell sites. This problem is especially relevant where an operator provides bulletin board information on behalf of other operators.
- the bulletin board system should only provide information about a specific target or local communications system to subscriber units which are in the vicinity of that target system.
- the bulletin board system should be capable of mimicking the coverage area of a particular target communications system when providing information about that local communications system to subscribers.
- a method of operating a subscriber unit to access a preferred local communication system said method characterized by the steps of accessing a common communication system; receiving communication system information from said common communication system about at least one local communication system within the common communication system's coverage area; dete ⁇ nining the geographic location of the subscriber unit; and filtering the communication system information to identify the preferred local communication system that is available in the geographic location of the subscriber unit; and presenting the filtered information to the subscriber unit.
- a method of operating a common communication system controller to inform at least one subscriber unit of local communication system information comprising the steps of identifying the geographic location of the at least one subscriber unit; determining if the at least one subscriber unit is configured to support a local communication system in the geographic location in which the at least one subscriber unit is located; and presenting selective local communication system information to the at least one subscriber unit based on the geographic location.
- a configurable subscriber communications unit operable in at least one local communications system and receiving general information from a common communications system, comprising: a receiver; a transmitter; a memory circuit; and a controller, characterised in that the controller is coupled to the transmitter, the receiver, and the memory circuit, the controller responsive to the information received from the receiver to identify the geographic location of the subscriber communications unit, and the controller using the geographic location to selectively extract information from the general information such that only pertinent information relating to the at least one local communications system for the geographic location is presented to a user.
- a common communication system for providing information on at least one local communications system, comprising a receiver; a transmitter; a memory; and a controller, characterised in that the controller is coupled to the receiver, the transmitter and the memory, the controller receiving geographic information for determining the geographic location of a subscriber terminal, and communicating operating information to the subscriber terminal for enabling operation of the subscriber terminal in the at least one local communication system where the subscriber terminal is located.
- FIG. 1 is a block diagram of a network utilizing the present invention
- FIG. 2 is a flow chart illustrating a process embodying the present invention
- FIG. 3 is a flow chart illustrating a subprocess of the receiving system requirements process shown in FIG. 2.
- FIG. 4 is a flow chart illustrating a subprocess of the process illustrated in FIG. 2;
- FIG. 5 is a more detailed block diagram of the common communication system of FIG. 1;
- FIG. 6 is a more detailed block diagram of the subscriber unit of FIG. 1;
- FIG.s 7 and 8 illustrate designs of a subscriber unit which may potentially utilize the present invention.
- FIG. 1 a block diagram of a network, generally designated 100, utilizing the present invention is illustrated.
- network 100 there are a pluraHty of communication systems 111-117 all coupled through an interconnect or wireline system 118 to a common communication system 119, the system 119 being connected to a Bulletin board system 125.
- Interconnect system 118 would potentially be a wireline system, such as an Integrated Services Digital Network (ISDN).
- ISDN Integrated Services Digital Network
- the systems may also be directly connected along line 123.
- a subscriber 120 is seeking access to one of the local communication systems 111-117 in network 100.
- subscriber 120 will first access common communication system 119 using a channel 121.
- Common communication system 119 will then reply to subscriber 120 with a list of local communications systems available for use in network 100.
- system 119 may also provide information on types of features available and on system costs. All information is collectively referred to as bulletin board information.
- bulletin board information In order to insure that only pertinent information is transmitted to the subscriber 120, related to one or more of the communications systems 111-117, information or data relating to geographic location of the subscriber 120 is used to extract the appropriate information.
- the bulletin board system 125 operates with the interconnect system 118, to provide service information relating to one or more of the communications systems 111-117.
- the bulletin board system 119 can give the proper information when combined with a geo-location capability. This allows a bulletin board operator to deploy wide area channels but to use the geo-location information to provide information pertaining to target systems which are available at the location of the subscriber 120.
- the bulletin board system 119 has stored information describing the coverage areas of the various communications systems 111-117 that are available.
- a bulletin board cellular information service which includes a plurality of bulletin board cells. Each bulletin board cell broadcasts all the bulletin board information about communications systems 111-117 that are available within the coverage area of the bulletin board cell.
- This information includes data regarding the coverage areas of the target systems.
- the subscriber 120 uses information from it's own geo-location process together with the coverage areas of the various possible local communications systems 111-117, as provided by the bulletin board cell broadcast, to determine which systems are locally available.
- the subscriber 120 selectively filters and separates the bulletin board information so that only pertinent bulletin board information regarding local communications systems 111-117 is displayed to the user and/or used for system selection.
- the subscriber 120 selects an appropriate local communication system 111-117 and acquires the necessary information from the bulletin board cell to enable the subscriber 120 to access the selected local communications system 111-
- the subscriber 120 performs the geo- location process and informs the bulletin board system 119 of the subscriber unit's geographical location.
- the bulletin board system 119 uses this location information in conjunction with the information about the respective coverage areas of the various target or local communications systems 111-117.
- the bulletin board system 119 then provides the appropriate filtering to extract irrelevant bulletin board information.
- the bulletin board system 119 subsequently informs the subscriber 120 about each candidate local communications system 111- 117 for which the subscriber 120 falls inside the coverage area as beed by the bulletin board system 119.
- the subscriber 120 selects a suitable local communications system 111-117 and acquires the necessary information from the bulletin board system 119 to access the selected target communication system 111-117.
- This embodiment uses non-broadcast, point to point information transfer for the process of informing the subscriber 120 of the possible local communications systems 111-117.
- a location function will be used.
- the location function may be active or passive.
- an active technique may use timing advance information from a number of simultaneously observed transmitters, or an active geo-location technique from mobile satellite system (MSS).
- MSS mobile satellite system
- a passive technique includes both LORAN or GPS services that passively supply highly accurate global positioning information directly to a receiver without Doppler calculations or the like. It should also be recognized that the infrastructure for geo-location and positioning may be the same as that which provides the bulletin board services.
- Process 200 begins with step 202.
- the subscriber 120 then accesses the common communication system, step 204. This may be performed passively, in that the subscriber unit may only monitor the information being transmitted by the common communication system. However, at some point, the subscriber unit 120 will need to request and be assigned to a channel of the common communication system 119. Once the subscriber unit 120 has accessed the channel of the common communication system 119, it receives an indication of available communication systems within the coverage area of this common communication system 119, step 206, or within the coverage area of the subscriber unit 120. This indication of available systems may be general, as in a "GSM" system is available; or provide more detail, such as a "half-rate
- the common communication system 119 may also provide a list of any requirements of a particular communication system, step 208. Such requirements may include display capabilities, power, frequency band, modulation scheme, etc.
- the preferred method of operating the a subscriber unit to access a preferred local communication system 111-117 such as the communications systems shown in FIG. 1 is described in more detail hereinafter.
- the common communications system is accessed, step 204, and an indication of available local communication systems is received, step 206.
- the local communications system information is related to all of the options and services for any number of the local communications systems 111-117.
- a geographic location of the subscriber unit 120 is determined step 302 (FIG. 3), together with a measure of uncertainty which is then used by the subscriber unit 120 or the common communication system 119 to extract, eUminate and/or filter, step 304, irrelevant information for the whole of the available information.
- step 306 only information relating to preferred communications system is presented, step 306, to the subscriber unit 120.
- the information relating to the preferred local communications systems 111-117 will correspond to those local communications systems 111-117 available for that geographic location.
- the subscriber unit 120 may then receive system requirements of one or more systems determined to be local, step 208.
- this provides a user of the subscriber unit 120 only with relevant and pertinent bulletin board information for those local communications systems 111-117 available in subscriber unit's geographic location. Thus, little or no extraneous bulletin board information need be presented to the user even if using a wide-area bulletin board network.
- this step would then be followed by a verification by the subscriber unit 120 that it is, or can be made, compliant with any of those requirements, step 210.
- the subscriber unit 120 for this type of system is capable of being programmed over the air and may also be provided with stable memory of some pre-programmed systems.
- the subscriber unit 120 determines if any non-resident programming is required, step 212. If programming is required, the subscriber unit 120 will request the programming from the common communication system 119, step 214.
- the common communication system 119 will respond by transmitting the enabling program, which will be received by the subscriber unit 120, subprocess 216.
- Subprocess 214 will generally consists of one or more of the steps illustrated in FIG. 4.
- the subscriber unit 120 may require certain programming. This programming may be provided either by way of enabling functions that are already resident in the subscriber unit 120, step 402; or by providing non-resident functions, step 404.
- a type of resident function may be an indicator of what type of coding or encryption process is used by the selected system. The subscriber unit 120 would have several of these present in memory and only need to be told which one to utilize.
- An example of a non ⁇ resident function would be any new type of capability that may be added to the system. For example, a new type of hand-off algorithm may have been implemented since the subscriber unit's last memory update.
- the non-resident function provided to the subscriber unit 120 may be provided either by providing a specification that can be executed directly by the subscriber unit 120; or by providing a high level design specification. If a high level design specification is provided, the subscriber unit 120 will generate, or elaborate, its own executable specification. As part of this, non- resident functions, once received, may be stored in a non-volatile memory thereby becoming resident functions. Along with this, older resident functions may be removed from the subscriber unit 120.
- step 218 the subscriber unit 120 configures itself to operate on the selected communication system 114.
- the subscriber unit 120 may disconnect from the common communication system 119, or it may remain in contact. This would probably, but not necessarily, require a dual mode type of subscriber unit. This concept is known in the art and is currently available for subscriber units operating on both AMPS and ADC systems in the United States of America.
- step 218 After the subscriber unit 120 has been configured, step 218, it will then test its compatibility, step 220, by dete ⁇ nining if it meets any requirements of the selected communication system 114. If the test is satisfactory, the subscriber unit 120 will then access the selected communication system, step 222. This may be accomplished through the receipt of a hand-off instruction from the common communication system 119 or by a direct request from the subscriber unit 120. Once the access has been completed, process 200 ends, step 224.
- Common system 119 would preferably consist of RF equipment 502 as normally associated with any mobile communication system.
- the RF equipment 502 comprises an antenna 504 connected to a receiver 506 and a transmitter 508 via a duplexer 501.
- the receiver 506 and the transmitter 508 are both connected to a controller 510 which is also connected to an output of the RF equipment 502.
- a memory 512 is also connected to the controller 510.
- the particular protocol of operation is not important for the present invention, but would, for example, be a derivative of one of the basic type of system. Alternatively, the protocol may be a completely new design to maximize its efficiency.
- common system 119 would contain a system list 514 of other communication systems 111-117 available.
- the system list 514 may be a simple list of systems available or it may contain addition information on the individual systems.
- This additional information may be feature capabilities, system requirements, system cost, etc.
- Common system 119 will also contain a feature list 516.
- This Ust would be in the form of a matrix having features cross referenced by subscriber unit capabilities.
- each feature would have either or both of an executable specification a high level design specification. This list would then be used to generate the programming information sent to the subscriber unit 120.
- Common system 119 may also contain a system subscriber register 518 for all of the systems in the network. With this information, the common system 119 may determine if the subscriber unit 120 is permitted access to the selected communication system 114 before taking resources to provide the subscribe with the programming requested. It can also be used by the other systems, either by way of interconnect system 118 or directly by bus 123, to set-up billing information on the subscriber. An alternative method would be to locate this register with the individual systems.
- the system fist 514, the feature list 516 and the system subscriber register 518 are each connected to the RF equipment 502 via a bus 520.
- Subscriber unit 120 has the typical duplex switch 604 for coupling an antenna
- Transmitter 606 is coupled to duplex switch 604 through an amplifier 610.
- Transmitter 606 and receiver 608 each have multi-loop synthesizers 612 and 614, respectively. Synthesizers 612 and 614 permit subscriber unit 120 to operate at different frequency ranges. It should be noted here, that while subscriber unit 120 is meant to be a generic, programmable type of radiotelephone, it is not necessarily meant to work in every possible system.
- the subscriber unit 120 further consists of a digital signal processor (DSP) 616, a controller 618, and a memory 620. When the enabling program is received from the common system 119, the controller 618 will use this to coordinate the programming of DSP 616. As described above, some of the functions may be resident in subscriber unit 120. For resident functions, the executable code will be retrieved from a memory 620, which may, if preferable, be physically located in DSP 616 or controller 618.
- DSP digital signal processor
- Subscriber unit 70 is a combination personal data assistant (PDA) and radiotelephone. It consists of a display 71 and a keypad 72 which are each divided between two portions, 73 and 74, of PDA 70. Portions 73 and 74 are joined by a hinge 80 which permits the two portions to be closed upon each other, as illustrated in FIG. 8. On the outside of portion 74 is a speaker 76 and an microphone 77. Optional keys, or buttons, 78 are also provided on the outside portion to be used for certain general functions such as: call answer, call end, power on/off, etc.
- PDA personal data assistant
- PDA 70 accesses the common system 19
- a list of available systems 111-117 is displayed in display 71.
- the user can then select the system desired using the keypad.
- the process described above in FIG. 2 will then continue by providing enabling programming to PDA 70.
- 70 may then be closed and used as a radiotelephone.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Relay Systems (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU29571/97A AU2957197A (en) | 1996-05-17 | 1997-05-16 | Communications operating system and method therefor |
EP97923927A EP0898847A2 (en) | 1996-05-17 | 1997-05-16 | Communications operating system and method therefor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9610330.4 | 1996-05-17 | ||
GB9610330A GB2313257A (en) | 1996-05-17 | 1996-05-17 | Selecting data relevant to multiple communication systems in vicinity of a programmable subscriber unit |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1997044974A2 true WO1997044974A2 (en) | 1997-11-27 |
WO1997044974A3 WO1997044974A3 (en) | 1998-01-08 |
Family
ID=10793863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1997/002531 WO1997044974A2 (en) | 1996-05-17 | 1997-05-16 | Communications operating system and method therefor |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0898847A2 (en) |
AU (1) | AU2957197A (en) |
GB (1) | GB2313257A (en) |
WO (1) | WO1997044974A2 (en) |
Cited By (4)
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EP1059826A1 (en) * | 1998-12-07 | 2000-12-13 | Mitsubishi Denki Kabushiki Kaisha | Mobile communication device and mobile communication system |
WO2002039776A1 (en) | 2000-11-10 | 2002-05-16 | Transatel | Method for searching and determining a radiocommunication network |
US7319870B2 (en) | 2001-12-20 | 2008-01-15 | Motorola, Inc. | Method for subscribing to a wireless service |
EP2019515A1 (en) | 2007-07-25 | 2009-01-28 | Research In Motion Limited | Method and apparatus for mobile network selection by a wireless device connected to a generic access network |
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GB9707615D0 (en) | 1997-04-14 | 1997-06-04 | British Telecomm | Telecommunications apparatus and method |
EP0967814A1 (en) * | 1998-06-23 | 1999-12-29 | Koninklijke Philips Electronics N.V. | Apparatus for mobile communications |
EP1014742B1 (en) | 1998-12-22 | 2005-02-09 | Alcatel | Location indication means and method for service availability in a radio telephone network |
EP1069793B1 (en) * | 1999-02-08 | 2006-04-26 | Mitsubishi Denki Kabushiki Kaisha | Mobile communication unit and method of switching radio communication systems |
US6680919B1 (en) * | 2000-02-04 | 2004-01-20 | Nokia Corporation | Downloading of maps and location specific configuration information to GPS-capable mobile communication terminal |
KR100454513B1 (en) * | 2000-02-09 | 2004-11-03 | 인터내셔널 비지네스 머신즈 코포레이션 | Method and apparatus for providing automatic configuration of a computer system based on its physical location using an electronic unit |
US20020161921A1 (en) * | 2001-04-27 | 2002-10-31 | Docomo Communications Laboratories Usa, Inc. | Method of selecting a network access measure from multiple access measures |
US7437158B2 (en) * | 2002-05-21 | 2008-10-14 | Incnetworks Inc. | Advanced multi-network client device for wideband multimedia access to private and public wireless networks |
GB2389273B (en) * | 2002-05-28 | 2004-08-18 | Motorola Inc | Wireless communication system architechture mobile station and method |
FR2840499B1 (en) | 2002-05-30 | 2004-12-10 | Cit Alcatel | METHOD AND DEVICE FOR CONTROLLING ACCESS TO A LOCAL WIRELESS COMMUNICATIONS NETWORK |
JP3984922B2 (en) * | 2003-03-20 | 2007-10-03 | 株式会社エヌ・ティ・ティ・ドコモ | Mobile device, server device, and information providing method |
KR100735242B1 (en) * | 2003-12-16 | 2007-07-03 | 삼성전자주식회사 | Method for providing/notifying interworking information of mobile telecommunication network and wireless local area network and therefor system |
MXPA06007921A (en) | 2004-02-06 | 2007-03-07 | Ericsson Telefon Ab L M | Handover between a cellular network and an unlicensed-radio access network using a single identifier for all the access points. |
EP3462765B1 (en) * | 2004-02-18 | 2021-06-23 | Telefonaktiebolaget LM Ericsson (publ) | Method and apparatus for unlicensed-radio access in a mobile radio communications system |
US8112082B2 (en) | 2004-03-08 | 2012-02-07 | Telefonaktiebolaget Lm Ericsson (Publ) | Unlicensed-radio access networks in mobile cellular communication networks |
AU2004316759B2 (en) | 2004-03-09 | 2009-06-04 | Telefonaktiebolaget L. M. Ericsson (Publ) | Packet radio transmission over an unlicensed-radio access network |
US8169982B2 (en) * | 2005-08-10 | 2012-05-01 | Qualcomm Incorporated | Method and apparatus for creating a fingerprint for a wireless network |
US7873384B2 (en) * | 2005-09-01 | 2011-01-18 | Broadcom Corporation | Multimode mobile communication device with configuration update capability |
US8543105B2 (en) | 2006-02-11 | 2013-09-24 | Broadcom Corporation | Using standard cellular handsets with a general access network |
US8295852B2 (en) | 2007-03-30 | 2012-10-23 | Telecom Italia S.P.A. | Method and system for enabling connection of a mobile communication terminal to a radio communication network |
BRPI0721553B1 (en) * | 2007-03-30 | 2019-08-27 | Telecom Italia Spa | method for enabling connection of a mobile communication terminal with short-range wireless communication capabilities to a radio communication network, mobile communication terminal with short-range wireless communication capabilities |
US9137745B2 (en) | 2007-10-12 | 2015-09-15 | Qualcomm Incorporated | System and method to locate femto cells with passive assistance from a macro cellular wireless network |
US9253653B2 (en) | 2007-11-09 | 2016-02-02 | Qualcomm Incorporated | Access point configuration based on received access point signals |
US8200736B2 (en) | 2007-12-24 | 2012-06-12 | Qualcomm Incorporated | Virtual SIM card for mobile handsets |
US8838096B2 (en) | 2009-05-29 | 2014-09-16 | Qualcomm Incorporated | Non-macro cell search integrated with macro-cellular RF carrier monitoring |
US8649789B2 (en) * | 2009-06-08 | 2014-02-11 | Qualcomm Incorporated | Method and apparatus for switching virtual SIM service contracts when roaming |
US8639245B2 (en) | 2009-06-08 | 2014-01-28 | Qualcomm Incorporated | Method and apparatus for updating rules governing the switching of virtual SIM service contracts |
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US20110269461A1 (en) * | 2010-04-28 | 2011-11-03 | Xu Richard H | System and Method for Dynamically Providing Communication Profiles for Mobile Devices |
US20110270747A1 (en) * | 2010-04-28 | 2011-11-03 | Xu Richard H | System and Method for Adding Funds to a Prepaid Account for a Mobile Device Associated with Mulitple Communication Profiles |
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1996
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1997
- 1997-05-16 AU AU29571/97A patent/AU2957197A/en not_active Abandoned
- 1997-05-16 EP EP97923927A patent/EP0898847A2/en not_active Withdrawn
- 1997-05-16 WO PCT/EP1997/002531 patent/WO1997044974A2/en not_active Application Discontinuation
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WO1995024809A1 (en) * | 1994-03-10 | 1995-09-14 | Motorola Inc. | A method for providing alternate communication services based on geographic location |
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Cited By (5)
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---|---|---|---|---|
EP1059826A1 (en) * | 1998-12-07 | 2000-12-13 | Mitsubishi Denki Kabushiki Kaisha | Mobile communication device and mobile communication system |
EP1059826A4 (en) * | 1998-12-07 | 2005-08-03 | Mitsubishi Electric Corp | Mobile communication device and mobile communication system |
WO2002039776A1 (en) | 2000-11-10 | 2002-05-16 | Transatel | Method for searching and determining a radiocommunication network |
US7319870B2 (en) | 2001-12-20 | 2008-01-15 | Motorola, Inc. | Method for subscribing to a wireless service |
EP2019515A1 (en) | 2007-07-25 | 2009-01-28 | Research In Motion Limited | Method and apparatus for mobile network selection by a wireless device connected to a generic access network |
Also Published As
Publication number | Publication date |
---|---|
EP0898847A2 (en) | 1999-03-03 |
WO1997044974A3 (en) | 1998-01-08 |
GB9610330D0 (en) | 1996-07-24 |
AU2957197A (en) | 1997-12-09 |
GB2313257A (en) | 1997-11-19 |
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